WorldWideScience

Sample records for videotape editing system

  1. Computer-based desktop system for surgical videotape editing.

    Science.gov (United States)

    Vincent-Hamelin, E; Sarmiento, J M; de la Puente, J M; Vicente, M

    1997-05-01

    The educational role of surgical video presentations should be optimized by linking surgical images to graphic evaluation of indications, techniques, and results. We describe a PC-based video production system for personal editing of surgical tapes, according to the objectives of each presentation. The hardware requirement is a personal computer (100 MHz processor, 1-Gb hard disk, 16 Mb RAM) with a PC-to-TV/video transfer card plugged into a slot. Computer-generated numerical data, texts, and graphics are transformed into analog signals displayed on TV/video. A Genlock interface (a special interface card) synchronizes digital and analog signals, to overlay surgical images to electronic illustrations. The presentation is stored as digital information or recorded on a tape. The proliferation of multimedia tools is leading us to adapt presentations to the objectives of lectures and to integrate conceptual analyses with dynamic image-based information. We describe a system that handles both digital and analog signals, production being recorded on a tape. Movies may be managed in a digital environment, with either an "on-line" or "off-line" approach. System requirements are high, but handling a single device optimizes editing without incurring such complexity that management becomes impractical to surgeons. Our experience suggests that computerized editing allows linking surgical scientific and didactic messages on a single communication medium, either a videotape or a CD-ROM.

  2. Video Editing System

    Science.gov (United States)

    Schlecht, Leslie E.; Kutler, Paul (Technical Monitor)

    1998-01-01

    This is a proposal for a general use system based, on the SGI IRIS workstation platform, for recording computer animation to videotape. In addition, this system would provide features for simple editing and enhancement. Described here are a list of requirements for the system, and a proposed configuration including the SGI VideoLab Integrator, VideoMedia VLAN animation controller and the Pioneer rewritable laserdisc recorder.

  3. Videotapes

    CERN Document Server

    Chavanne, A

    1989-01-01

    1666 : impact de la creation de l'Academie des Sciences par Colbert, trente ans apres le proces de Galile, et au moment des disparitions de Pascal, Descartes et Fermat. Elle dirigee par le hollandais Huyggens jusqu'a sa fuite de France au moment de la revocation de l'Edit de Nantes. - 1750 : l'Encyclopedie (ou "Dictionnaire raisonne des Sciences, des Arts et des Metiers") de Diderot et d'Alembert, soutenus par Malherbes, Buffon, Condorcet et Rousseau. - 1789 : Revolution francaise. - 8 aout 1793 : l'Assemblee, par une declaration de Marat, dissout l'Academie des Sciences. Celle-ci continue cependant ses travaux pour les poids et mesures jusqu'en 1795. - la Terreur : la condamnation a mort, pas au nom d'une "Revolution qui n'a pas besoin de savants", de trois grands hommes de science : Lavoisier, Bailly et Condorcet. - 1793-1794 : Au printemps 93, le Comite de Salut Publique s'inquiete du demi-million de soldats etrangers de toutes les pays frontaliers qui essaient de penetrer en France pour occuper le pays. C...

  4. Multiplex editing system

    DEFF Research Database (Denmark)

    2015-01-01

    The present invention relates to a multiplex editing system. The system allows multiple editing of nucleic acid sequences such as genomic sequences, such as knockins of genes of interest in a genome, knockouts of genomic sequences and/or allele replacement. Also provided herein are a method...... for editing nucleic acids and a cell comprising a stably integrated endonuclease....

  5. A system for sampling changes in blood pressure from a videotape, using Finapres(TM)

    NARCIS (Netherlands)

    Näring, G.W.B.; Wittebrood, J.; Staak, C. van der; DeMey, H.; Schaap, C.

    1996-01-01

    A system is described that measures blood pressure noninvasively and continuously during a videotaped verbal interaction. The system incorporates the use of the Finapres to nonintrusively and continuously measure BP during a verbal interaction. Segments from the interaction, in which blood pressure

  6. Scars. [Videotape].

    Science.gov (United States)

    2002

    This 40-minute videotape tackles the issue of childhood bullying and unwanted teasing and torment. This videotape features real school children handling dramatic roles, and "doing the right thing" (aka "positive modeling.") The film is divided into two distinct parts: first act themes include bullying, girl bullies, children without one or both…

  7. The Carrot Highway [Videotape].

    Science.gov (United States)

    Wyss, Ron

    "The Carrot Highway" is a 40-minute award-winning videotape that takes viewers on a whirlwind tour around the world to tell the story of the carrot. This videotape reveals the carrot in all its glory by cleverly integrating live-action, music, animation, videotape footage, and games. Viewers travel with a troupe of animated carrot characters to…

  8. Current and future editing reagent delivery systems for plant genome editing.

    Science.gov (United States)

    Ran, Yidong; Liang, Zhen; Gao, Caixia

    2017-05-01

    Many genome editing tools have been developed and new ones are anticipated; some have been extensively applied in plant genetics, biotechnology and breeding, especially the CRISPR/Cas9 system. These technologies have opened up a new era for crop improvement due to their precise editing of user-specified sequences related to agronomic traits. In this review, we will focus on an update of recent developments in the methodologies of editing reagent delivery, and consider the pros and cons of current delivery systems. Finally, we will reflect on possible future directions.

  9. Producing Videotape Programs for Computer Training: An Example with AMA/NET

    OpenAIRE

    Novey, Donald W.

    1990-01-01

    To facilitate user proficiency with AMA/Net, an 80-minute training videotape has been produced. The production was designed to use videotape's advantages, where information and emotion are combined; and to accommodate its chief disadvantage, lack of resolution for fine text, with close-ups and graphics. Content of the videotape was conceived, outlined, demonstrated with simultaneous text capture, edited into script form, narration added, and scripts marked for videotaping and narrating. Video...

  10. Producing Videotape Programs for Computer Training: An Example with AMA/NET

    OpenAIRE

    Novey, Donald W.

    1990-01-01

    To facilitate user proficiency with AMA/Net, an 80-minute training videotape has been produced. The production was designed to use videotape's advantages, where information and emotion are combined; and to accommodate its chief disadvantage, lack of resolution for fine text, with close-ups and graphics. Content of the videotape was conceived, out-lined, demonstrated with simultaneous text capture, edited into script form, narration added, and scripts marked for videotaping and narrating. Vide...

  11. Engineering the Delivery System for CRISPR-Based Genome Editing.

    Science.gov (United States)

    Glass, Zachary; Lee, Matthew; Li, Yamin; Xu, Qiaobing

    2018-01-02

    Clustered regularly interspaced short palindromic repeat-CRISPR-associated protein (CRISPR-Cas) systems, found in nature as microbial adaptive immune systems, have been repurposed into an important tool in biological engineering and genome editing, providing a programmable platform for precision gene targeting. These tools have immense promise as therapeutics that could potentially correct disease-causing mutations. However, CRISPR-Cas gene editing components must be transported directly to the nucleus of targeted cells to exert a therapeutic effect. Thus, efficient methods of delivery will be critical to the success of therapeutic genome editing applications. Here, we review current strategies available for in vivo delivery of CRISPR-Cas gene editing components and outline challenges that need to be addressed before this powerful tool can be deployed in the clinic. Copyright © 2017 Elsevier Ltd. All rights reserved.

  12. System description: Isabelle/jEdit in 2014

    Directory of Open Access Journals (Sweden)

    Makarius Wenzel

    2014-10-01

    Full Text Available This is an updated system description for Isabelle/jEdit, according to the official release Isabelle2014 (August 2014. The following new PIDE concepts are explained: asynchronous print functions and document overlays, syntactic and semantic completion, editor navigation, management of auxiliary files within the document-model.

  13. Genome Editing of Erythroid Cell Culture Model Systems.

    Science.gov (United States)

    Yik, Jinfen J; Crossley, Merlin; Quinlan, Kate G R

    2018-01-01

    Genome editing to introduce specific mutations or to knock out genes in model cell systems has become an efficient platform for research in the fields of molecular biology, genetics, and cell biology. With recent rapid improvements in genome editing techniques, bench-top manipulation of the genome in cell culture has become progressively easier. The application of this knowledge to erythroid cell culture systems now allows the rapid analysis of the downstream effects of virtually any engineered gene disruption or modification in cell systems. Here, we describe a CRISPR/Cas9-based approach to making genomic modifications in erythroid lineage cells which we have successfully used in both murine (MEL) and human (K562) erythroleukaemia immortalized cell lines.

  14. Diesel Electrical Systems. Teacher Edition (Revised).

    Science.gov (United States)

    Sprinkle, Tom; Huston, Jane, Ed.

    This module is one of a series of teaching guides that cover diesel mechanics. The module contains eight instructional units that cover the following topics: (1) introduction to electrical systems; (2) electrical circuits; (3) electrical indicator circuits; (4) storage batteries; (5) starting systems and circuits; (6) ignition circuits; (7)…

  15. Mission Data System Java Edition Version 7

    Science.gov (United States)

    Reinholtz, William K.; Wagner, David A.

    2013-01-01

    The Mission Data System framework defines closed-loop control system abstractions from State Analysis including interfaces for state variables, goals, estimators, and controllers that can be adapted to implement a goal-oriented control system. The framework further provides an execution environment that includes a goal scheduler, execution engine, and fault monitor that support the expression of goal network activity plans. Using these frameworks, adapters can build a goal-oriented control system where activity coordination is verified before execution begins (plan time), and continually during execution. Plan failures including violations of safety constraints expressed in the plan can be handled through automatic re-planning. This version optimizes a number of key interfaces and features to minimize dependencies, performance overhead, and improve reliability. Fault diagnosis and real-time projection capabilities are incorporated. This version enhances earlier versions primarily through optimizations and quality improvements that raise the technology readiness level. Goals explicitly constrain system states over explicit time intervals to eliminate ambiguity about intent, as compared to command-oriented control that only implies persistent intent until another command is sent. A goal network scheduling and verification process ensures that all goals in the plan are achievable before starting execution. Goal failures at runtime can be detected (including predicted failures) and handled by adapted response logic. Responses can include plan repairs (try an alternate tactic to achieve the same goal), goal shedding, ignoring the fault, cancelling the plan, or safing the system.

  16. Map of the Pluto System - Children's Edition

    Science.gov (United States)

    Hargitai, H. I.

    2016-12-01

    Cartography is a powerful tool in the scientific visualization and communication of spatial data. Cartographic visualization for children requires special methods. Although almost all known solid surface bodies in the Solar System have been mapped in detail during the last more than 5 decades, books and publications that target children, tweens and teens never include any of the cartographic results of these missions. We have developed a series of large size planetary maps with the collaboration of planetary scientists, cartographers and graphic artists. The maps are based on photomosaics and DTMs that were redrawn as artwork. This process necessarily involved generalization, interpretation and transformation into the visual language that can be understood by children. In the first project we selected six planetary bodies (Venus, the Moon, Mars, Io, Europa and Titan) and invited six illustrators of childrens'books. Although the overall structure of the maps look similar, the visual approach was significantly different. An important addition was that the maps contained a narrative: different characters - astronauts or "alien-like lifeforms" - interacted with the surface. The map contents were translated into 11 languages and published online at https://childrensmaps.wordpress.com.We report here on the new map of the series. Following the New Horizons' Pluto flyby we have started working on a map that, unlike the others, depicts a planetary system, not only one body. Since only one hemisphere was imaged in high resolution, this map is showing the encounter hemispheres of Pluto and Charon. Projected high resolution image mosaics with informal nomenclature were provided by the New Horizons Team. The graphic artist is Adrienn Gyöngyösi. Our future plan is to produce a book format Children's Atlas of Solar System bodies that makes planetary cartographic and astrogeologic results more accessible for children, and the next generation of planetary scientists among them.

  17. Utility of Technologist Editing of Polysomnography Scoring Performed by a Validated Automatic System.

    Science.gov (United States)

    Younes, Magdy; Thompson, Wayne; Leslie, Colleen; Egan, Tanya; Giannouli, Eleni

    2015-08-01

    Automatic scoring of polysomnography records offers many advantages, but excessive editing time seriously limits its use. To identify reasons for excessive editing time, and the clinical utility of such editing, and to develop an approach to optimize the editing process. Forty-two polysomnograms scored manually were scored months later by an automatic system (Michele Sleep Scoring). Results were edited by the technologist who scored them initially. Editing actions and time were documented. An Editing Helper algorithm was developed on the basis of these results, and its effectiveness was tested in 60 new records. Technologists performed 253 ± 110 actions, consuming 54.5 ± 26.3 minutes, per file. Of the edits, 33% were either subsequently reversed or not considered in the clinical summary. The electroencephalography pattern in 67% of epochs changed from awake to non-REM sleep, and vice versa, represented neither stable wakefulness nor sleep so that assigning a precise stage was arbitrary. Many opposing changes occurred. Ultimately the impact of editing on summary results was limited. In the second set, the Editing Helper algorithm reduced editing time from 59 ± 26 to 6 ± 7 minutes. Average (±SD) intraclass correlation coefficients for 15 reported variables were 0.77 ± 0.14 for manual versus unedited automatic, 0.89 ± 0.09 for manual versus fully edited automatic, and 0.87 ± 0.08 for manual versus automatic edited according to the Editing Helper's suggestions only, and there was no difference between the last two average intraclass correlation coefficients. Editing time does not reflect unreliable scoring. Comprehensive editing of a well-validated automatic scoring system is highly inefficient. Editing can be substantially optimized.

  18. Financial Accounting for Local and State School Systems: 2014 Edition. NCES 2015-347

    Science.gov (United States)

    Allison, Gregory S.

    2015-01-01

    The 2014 edition of "Financial Accounting for Local and State School Systems" updates the 2009 (see ED505993) and 2003 editions of the handbook. The 2003 edition was the work of the NCES National Forum on Education Statistics, Core Finance Data Task Force. That task force systematically rewrote nearly the entire text, incorporating new…

  19. USH2A Gene Editing Using the CRISPR System

    Directory of Open Access Journals (Sweden)

    Carla Fuster-García

    2017-09-01

    Full Text Available Usher syndrome (USH is a rare autosomal recessive disease and the most common inherited form of combined visual and hearing impairment. Up to 13 genes are associated with this disorder, with USH2A being the most prevalent, due partially to the recurrence rate of the c.2299delG mutation. Excluding hearing aids or cochlear implants for hearing impairment, there are no medical solutions available to treat USH patients. The repair of specific mutations by gene editing is, therefore, an interesting strategy that can be explored using the CRISPR/Cas9 system. In this study, this method of gene editing is used to target the c.2299delG mutation on fibroblasts from an USH patient carrying the mutation in homozygosis. Successful in vitro mutation repair was demonstrated using locus-specific RNA-Cas9 ribonucleoproteins with subsequent homologous recombination repair induced by an engineered template supply. Effects on predicted off-target sites in the CRISPR-treated cells were discarded after a targeted deep-sequencing screen. The proven effectiveness and specificity of these correction tools, applied to the c.2299delG pathogenic variant of USH2A, indicates that the CRISPR system should be considered to further explore a potential treatment of USH.

  20. Nuclear and mitochondrial RNA editing systems have opposite effects on protein diversity.

    Science.gov (United States)

    Sloan, Daniel B

    2017-08-01

    RNA editing can yield protein products that differ from those directly encoded by genomic DNA. This process is pervasive in the mitochondria of many eukaryotes, where it predominantly results in the restoration of ancestral protein sequences. Nuclear mRNAs in metazoans also undergo editing (adenosine-to-inosine or 'A-to-I' substitutions), and most of these edits appear to be nonadaptive 'misfirings' of adenosine deaminases. However, recent analysis of cephalopod transcriptomes found that many editing sites are shared by anciently divergent lineages within this group, suggesting they play some adaptive role. Recent discoveries have also revealed that some fungi have an independently evolved A-to-I editing mechanism, resulting in extensive recoding of their nuclear mRNAs. Here, phylogenetic comparisons were used to determine whether RNA editing generally restores ancestral protein sequences or creates derived variants. Unlike in mitochondrial systems, RNA editing in metazoan and fungal nuclear transcripts overwhelmingly leads to novel sequences not found in inferred ancestral proteins. Even for the subset of RNA editing sites shared by deeply divergent cephalopod lineages, the primary effect of nuclear editing is an increase-not a decrease-in protein divergence. These findings suggest fundamental differences in the forces responsible for the evolution of RNA editing in nuclear versus mitochondrial systems. © 2017 The Author(s).

  1. Producing Videotape Programs for Computer Training: An Example with AMA/NET

    Science.gov (United States)

    Novey, Donald W.

    1990-01-01

    To facilitate user proficiency with AMA/Net, an 80-minute training videotape has been produced. The production was designed to use videotape's advantages, where information and emotion are combined; and to accommodate its chief disadvantage, lack of resolution for fine text, with close-ups and graphics. Content of the videotape was conceived, outlined, demonstrated with simultaneous text capture, edited into script form, narration added, and scripts marked for videotaping and narrating. Videotaping was performed with actual keyboard sounds for realism. The recording was divided into four areas: office mock-up, keyboard close-ups, scan-conversion and screen close-ups. Once the footage was recorded, it was logged and rough-edited. Care was taken to balance the pace of the program with visual stimulation and amount of narration. The final edit was performed as a culmination of all scripts, video materials and rough edit, with graphics and steady change of visual information offsetting the static nature of the screen display. Carefully planned video programs can be a useful and economical adjunct in the training process for online services.

  2. in_focus - Fixing Health Systems (2nd edition) | CRDI - Centre de ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    in_focus - Fixing Health Systems (2nd edition). Book cover in_focus - Fixing Health Systems (2nd edition). Auteur(s) : Don de Savigny, Harun Kasale, Conrad Mbuya, and Graham Reid. Maison(s) d'édition : IDRC. 1 janvier 2008. ISBN : 9781552504093. 150 pages. e-ISBN : 9781552504116. Téléchargez le PDF.

  3. Dynamic Generation and Editing System for Wrongly Written Chinese Characters Font

    Directory of Open Access Journals (Sweden)

    Qingsheng Li

    2015-01-01

    Full Text Available The uniqueness of Chinese makes Chinese language a hotspot in language learning. In view of the problem of wrongly written character teaching in Chinese language teaching, it provides a simple, convenient, and efficient input method of wrongly written characters and realizes a dynamic generation and editing system for wrongly written Chinese character font, which solves the problems of real-time edit, coding, and input of wrongly written character in editing process using dynamic editing technology, and provides a convenient input method of wrongly written character in editing, printing, typesetting, and the research of digital Chinese language teaching. This method can also be used in dynamic editing, generation and processing of ancient variants, Oracle bone inscriptions, Bronze inscription, folk combined characters, and other fonts.

  4. Promoting Student Teachers' Content Related Knowledge in Teaching Systems Thinking: Measuring Effects of an Intervention through Evaluating a Videotaped Lesson

    Science.gov (United States)

    Rosenkränzer, Frank; Kramer, Tim; Hörsch, Christian; Schuler, Stephan; Rieß, Werner

    2016-01-01

    The understanding of complex, dynamic and animate systems has a special standing in education for sustainable development and biology. Thus one important role of science teacher education is to promote student teachers' Content Related Knowledge (CRK) for teaching systems thinking, consisting of extensive Content Knowledge (CK) and well formed…

  5. A Flexible Online Metadata Editing and Management System

    Energy Technology Data Exchange (ETDEWEB)

    Aguilar, Raul [Arizona State University; Pan, Jerry Yun [ORNL; Gries, Corinna [Arizona State University; Inigo, Gil San [University of New Mexico, Albuquerque; Palanisamy, Giri [ORNL

    2010-01-01

    A metadata editing and management system is being developed employing state of the art XML technologies. A modular and distributed design was chosen for scalability, flexibility, options for customizations, and the possibility to add more functionality at a later stage. The system consists of a desktop design tool or schema walker used to generate code for the actual online editor, a native XML database, and an online user access management application. The design tool is a Java Swing application that reads an XML schema, provides the designer with options to combine input fields into online forms and give the fields user friendly tags. Based on design decisions, the tool generates code for the online metadata editor. The code generated is an implementation of the XForms standard using the Orbeon Framework. The design tool fulfills two requirements: First, data entry forms based on one schema may be customized at design time and second data entry applications may be generated for any valid XML schema without relying on custom information in the schema. However, the customized information generated at design time is saved in a configuration file which may be re-used and changed again in the design tool. Future developments will add functionality to the design tool to integrate help text, tool tips, project specific keyword lists, and thesaurus services. Additional styling of the finished editor is accomplished via cascading style sheets which may be further customized and different look-and-feels may be accumulated through the community process. The customized editor produces XML files in compliance with the original schema, however, data from the current page is saved into a native XML database whenever the user moves to the next screen or pushes the save button independently of validity. Currently the system uses the open source XML database eXist for storage and management, which comes with third party online and desktop management tools. However, access to

  6. Operation of the ISO-DALT system: Seventh edition

    Energy Technology Data Exchange (ETDEWEB)

    Tollaksen, S.L.; Anderson, N.L.; Anderson, N.G.

    1984-05-01

    The ISO-DALT system of two-dimensional electrophoresis was developed as a series of modifications of the original technique of O'Farrell. We have written a series of recipes and more detailed laboratory procedures that incorporate refinements and ''tricks of the trade'' as they have developed during our use of the system. The present collection is the seventh version in this series and represents the state of art as of May 1984. The seventh edition has been prepared to incorporate the changes that we have found helpful, as well as to add a few new sections such as silver staining, transfer gels, ACIDOs, and BASOs. Although these directions are specific for our laboratory, we hope that they will be helpful in other laboratories as well. Although some disagreement still exists, we recommend that gel patterns be oriented with acid isoelectric points (pIs) to the left and high sodium dodecyl sulfate (SDS) molecular weights at the top. This results in a system of pI and molecular weight values that run according to the Cartesian convention and facilitates the use of the charge and molecular weight standards described herein. 67 refs., 14 figs.

  7. A population-based evaluation of the seventh edition of the TNM system for lung cancer

    DEFF Research Database (Denmark)

    Strand, T-E; Rostad, H; Wentzel-Larsen, T

    2010-01-01

    Our study describes the new seventh edition of the TNM system for lung cancer in a national population and its clinical implications. We classified 1,885 operated patients with lung cancer, reported to the Cancer Registry of Norway (Oslo, Norway) from 2001 to 2005, according to the sixth...... and the seventh edition of the TNM system. We compared survival differences adjusting for known prognostic factors. Furthermore, we evaluated the overall predictive ability of both editions using Harrell's concordance index. Survival curves by stage for each of the editions were similar; however, a better...... to stage II and 161 (48%) patients migrated from stage IIB to IIA. Stage migrations could change the treatment for up to 326 (17.3%) of the study patients. The seventh edition did not improve the overall predictive ability of the TNM system; however, the new classification implies changes in treatment...

  8. The GEISA Spectroscopic Database System in its latest Edition

    Science.gov (United States)

    Jacquinet-Husson, N.; Crépeau, L.; Capelle, V.; Scott, N. A.; Armante, R.; Chédin, A.

    2009-04-01

    GEISA (Gestion et Etude des Informations Spectroscopiques Atmosphériques: Management and Study of Spectroscopic Information)[1] is a computer-accessible spectroscopic database system, designed to facilitate accurate forward planetary radiative transfer calculations using a line-by-line and layer-by-layer approach. It was initiated in 1976. Currently, GEISA is involved in activities related to the assessment of the capabilities of IASI (Infrared Atmospheric Sounding Interferometer on board the METOP European satellite -http://earth-sciences.cnes.fr/IASI/)) through the GEISA/IASI database[2] derived from GEISA. Since the Metop (http://www.eumetsat.int) launch (October 19th 2006), GEISA/IASI is the reference spectroscopic database for the validation of the level-1 IASI data, using the 4A radiative transfer model[3] (4A/LMD http://ara.lmd.polytechnique.fr; 4A/OP co-developed by LMD and Noveltis with the support of CNES). Also, GEISA is involved in planetary research, i.e.: modelling of Titan's atmosphere, in the comparison with observations performed by Voyager: http://voyager.jpl.nasa.gov/, or by ground-based telescopes, and by the instruments on board the Cassini-Huygens mission: http://www.esa.int/SPECIALS/Cassini-Huygens/index.html. The updated 2008 edition of GEISA (GEISA-08), a system comprising three independent sub-databases devoted, respectively, to line transition parameters, infrared and ultraviolet/visible absorption cross-sections, microphysical and optical properties of atmospheric aerosols, will be described. Spectroscopic parameters quality requirement will be discussed in the context of comparisons between observed or simulated Earth's and other planetary atmosphere spectra. GEISA is implemented on the CNES/CNRS Ether Products and Services Centre WEB site (http://ether.ipsl.jussieu.fr), where all archived spectroscopic data can be handled through general and user friendly associated management software facilities. More than 350 researchers are

  9. A non-inheritable maternal Cas9-based multiple-gene editing system in mice

    OpenAIRE

    Sakurai, Takayuki; Kamiyoshi, Akiko; Kawate, Hisaka; Mori, Chie; Watanabe, Satoshi; Tanaka, Megumu; Uetake, Ryuichi; Sato, Masahiro; Shindo, Takayuki

    2016-01-01

    The CRISPR/Cas9 system is capable of editing multiple genes through one-step zygote injection. The preexisting method is largely based on the co-injection of Cas9 DNA (or mRNA) and guide RNAs (gRNAs); however, it is unclear how many genes can be simultaneously edited by this method, and a reliable means to generate transgenic (Tg) animals with multiple gene editing has yet to be developed. Here, we employed non-inheritable maternal Cas9 (maCas9) protein derived from Tg mice with systemic Cas9...

  10. Darwin's Revolution in Thought: An Illustrated Lecture. Teaching Guide and Videotape.

    Science.gov (United States)

    Gould, Stephen Jay

    "Darwin's Revolution in Thought" is Stephen Jay Gould's definitive treatise on Charles Darwin. This 50-minute classroom edition videotaped lecture is structured in the form of a paradox and three riddles about Darwin's life. Each is designed to shed light on one of the key features of the theory of natural selection, its philosophical…

  11. Application Progress of CRISPR/Cas9 System for Gene Editing in Tumor Research

    Directory of Open Access Journals (Sweden)

    Chao LIU

    2015-09-01

    Full Text Available TCRISPR/Cas9 (Clustered Regularly Interspaced Short Palindromic Repeat/CRISPR-associated nuclease 9 gene editing system is a new type of gene editing technology developed based on the immune mechanism of archaea resisting the invasion of exogenous nucleic acid. Compared with traditional gene editing system, CRISPR/Cas9 system is more efficient, easier operating, and less cytotoxic. Currently, CRISPR/Cas9 gene editing technology has been applied to many aspects of cancer research, including research on cancer genes, constructing animal tumor models, screening tumor resistance-associated and phenotypic-related genes and cancer gene therapy. In this review, the application of the CRISPR/Cas9 system in tumor research were introduced.

  12. [Application Progress of CRISPR/Cas9 System for Gene Editing in Tumor Research].

    Science.gov (United States)

    Liu, Chao; Li, Zhiwei; Zhang, Yanqiao

    2015-09-20

    TCRISPR/Cas9 (Clustered Regularly Interspaced Short Palindromic Repeat/CRISPR-associated nuclease 9) gene editing system is a new type of gene editing technology developed based on the immune mechanism of archaea resisting the invasion of exogenous nucleic acid. Compared with traditional gene editing system, CRISPR/Cas9 system is more efficient, easier operating, and less cytotoxic. Currently, CRISPR/Cas9 gene editing technology has been applied to many aspects of cancer research, including research on cancer genes, constructing animal tumor models, screening tumor resistance-associated and phenotypic-related genes and cancer gene therapy. In this review, the application of the CRISPR/Cas9 system in tumor research were introduced.

  13. genome editing

    Indian Academy of Sciences (India)

    2016-02-11

    Feb 11, 2016 ... The background of this 'linguistic turn' is the discovery of the CRISPR Cas9 system and its possible applications, which are described in two previous publications (Morange. 2015a, b). 2. The early uses of 'editing'. All molecular biologists are familiar with the phenomenon of. RNA editing discovered in the ...

  14. A non-inheritable maternal Cas9-based multiple-gene editing system in mice.

    Science.gov (United States)

    Sakurai, Takayuki; Kamiyoshi, Akiko; Kawate, Hisaka; Mori, Chie; Watanabe, Satoshi; Tanaka, Megumu; Uetake, Ryuichi; Sato, Masahiro; Shindo, Takayuki

    2016-01-28

    The CRISPR/Cas9 system is capable of editing multiple genes through one-step zygote injection. The preexisting method is largely based on the co-injection of Cas9 DNA (or mRNA) and guide RNAs (gRNAs); however, it is unclear how many genes can be simultaneously edited by this method, and a reliable means to generate transgenic (Tg) animals with multiple gene editing has yet to be developed. Here, we employed non-inheritable maternal Cas9 (maCas9) protein derived from Tg mice with systemic Cas9 overexpression (Cas9 mice). The maCas9 protein in zygotes derived from mating or in vitro fertilization of Tg/+ oocytes and +/+ sperm could successfully edit the target genome. The efficiency of such maCas9-based genome editing was comparable to that of zygote microinjection-based genome editing widely used at present. Furthermore, we demonstrated a novel approach to create "Cas9 transgene-free" gene-modified mice using non-Tg (+/+) zygotes carrying maCas9. The maCas9 protein in mouse zygotes edited nine target loci simultaneously after injection with nine different gRNAs alone. Cas9 mouse-derived zygotes have the potential to facilitate the creation of genetically modified animals carrying the Cas9 transgene, enabling repeatable genome engineering and the production of Cas9 transgene-free mice.

  15. Thinking in Pixels: An Editing System for Electronic Texts.

    Science.gov (United States)

    Kuhlenschmidt, Sally; Mosby, Charmaine

    2001-01-01

    Explores implications of increased publication options and examines conceptual distinctions among Fixed-Format, Electronic, and Meta-media Editors. Proposes a keyboard editing/commenting technique that will work across platforms and software programs and in every mode of electronic communication including simple e-mail. Suggests an increased…

  16. Dynamic regulation of RNA editing of ion channels and receptors in the mammalian nervous system

    Directory of Open Access Journals (Sweden)

    Tan Bao

    2009-05-01

    Full Text Available Abstract The post-transcriptional modification of mammalian transcripts in the central nervous system by adenosine-to-inosine RNA editing is an important mechanism for the generation of molecular diversity, and serves to regulate protein function through recoding of genomic information. As the molecular players and an increasing number of edited targets are identified and characterized, adenosine-to-inosine modification serves as an exquisite mechanism for customizing channel function within diverse biological niches. Here, we review the mechanisms that could regulate adenosine-to-inosine RNA editing and the impact of dysregulation in clinical conditions.

  17. Video Editing and Medication to Produce a Therapeutic Self Model

    Science.gov (United States)

    Dowrick, Peter W.; Raeburn, John M.

    1977-01-01

    Self-modeling requires the production of a videotape in which the subject is seen to perform in a model way. A 4-year-old "hyperactive" boy, initially under psychotropic medication, was unable to role play suitable behaviors. Video editing was used to produce a videotape that when watched by the subject, had therapeutic effects as compared with an…

  18. Waco investigation: analysis of FLIR videotapes

    Science.gov (United States)

    Klasen, Lena M.

    2001-09-01

    This paper presents some of the image processing techniques that were applied to seek an answer to the question whether agents of the Federal Bureau of Investigation (FBI) directed gunfired against the Branch Davidian complex in the tragic event that took place in Waco, Texas, U.S., 1993. The task for this investigation was to provide a scientific opinion that clarified the cause of the questioned events, or flashes, that can be seen on one of the surveillance videotapes. These flashes were by several experts, concluded to be evidence of gunfire. However, there were many reasons to question the correctness of that conclusion, such as the fact that some of the flashes appeared on a regular basis. The main hypothesis for this work was that the flashes instead were caused by specular solar reflections. The technical approach for this work was to analyze and compare the flashes appearance. By reconstructing the spatial and temporal position of the sensor, the complex and the sun, the geometrical properties was compared to the theoretical appearance of specular solar reflections. The result showed that the flashes seen on the FLIR videotape, were caused by solar or heat reflections from single or multiple objects. Consequently, they could not form evidence of gunfire. Further, the result highlights the importance of considering the characteristics of the imaging system within investigations that utilizes images as information source. This is due to the need of separating real data from other phenomena (such as solar reflections), distortions and artifacts in a correct manner.

  19. Harnessing type I and type III CRISPR-Cas systems for genome editing

    DEFF Research Database (Denmark)

    Li, Yingjun; Pan, Saifu; Zhang, Yan

    2016-01-01

    CRISPR-Cas (clustered regularly interspaced short palindromic repeats-CRISPR-associated) systems are widespread in archaea and bacteria, and research on their molecular mechanisms has led to the development of genome-editing techniques based on a few Type II systems. However, there has not been any...... report on harnessing a Type I or Type III system for genome editing. Here, a method was developed to repurpose both CRISPR-Cas systems for genetic manipulation in Sulfolobus islandicus, a thermophilic archaeon. A novel type of genome-editing plasmid (pGE) was constructed, carrying an artificial mini-CRISPR...... and selectively retained as transformants. Using this strategy, different types of mutation were generated, including deletion, insertion and point mutations. We envision this method is readily applicable to different bacteria and archaea that carry an active CRISPR-Cas system of DNA interference provided...

  20. Diesel Technology: Electrical and Electronic Systems. Teacher Edition [and] Student Edition.

    Science.gov (United States)

    Ready, Allan; Kauffman, Ricky; Bogle, Jerry

    This document contains the materials for a competency-based course in diesel technology and electrical and electronic systems that is tied to measurable and observable learning outcomes identified and validated by an advisory committee of business and industry representatives and teachers. The competencies addressed align with the medium/heavy…

  1. Evaluation of Videotaped and Live Theatre Auditions.

    Science.gov (United States)

    Ward, William C.

    Theatre auditions by 24 semifinalists in the 1980 Scholars in the Arts program were evaluated under two conditions. Four judges ranked the live auditions, while five evaluated videotapes of the same performance of the high school seniors. The auditions were videotaped in black and white. A single camera was used, fixed at an intermediate distance…

  2. Training Parents with Videotapes: Recognizing Limitations

    Science.gov (United States)

    Foster, Brandon W.; Roberts, Mark W.

    2007-01-01

    Among the many methods of teaching skills to parents of disruptive children, videotape modeling of specific parent-child interaction sequences has been particularly effective. Given the likelihood of timeout resistance in defiant children, the authors tested the effectiveness of videotape parent training with a sample of clinic referred,…

  3. Enhancing Targeted Genomic DNA Editing in Chicken Cells Using the CRISPR/Cas9 System

    Science.gov (United States)

    Wang, Ling; Yang, Likai; Guo, Yijie; Du, Weili; Yin, Yajun; Zhang, Tao; Lu, Hongzhao

    2017-01-01

    The CRISPR/Cas9 system has enabled highly efficient genome targeted editing for various organisms. However, few studies have focused on CRISPR/Cas9 nuclease-mediated chicken genome editing compared with mammalian genomes. The current study combined CRISPR with yeast Rad52 (yRad52) to enhance targeted genomic DNA editing in chicken DF-1 cells. The efficiency of CRISPR/Cas9 nuclease-induced targeted mutations in the chicken genome was increased to 41.9% via the enrichment of the dual-reporter surrogate system. In addition, the combined effect of CRISPR nuclease and yRad52 dramatically increased the efficiency of the targeted substitution in the myostatin gene using 50-mer oligodeoxynucleotides (ssODN) as the donor DNA, resulting in a 36.7% editing efficiency after puromycin selection. Furthermore, based on the effect of yRad52, the frequency of exogenous gene integration in the chicken genome was more than 3-fold higher than that without yRad52. Collectively, these results suggest that ssODN is an ideal donor DNA for targeted substitution and that CRISPR/Cas9 combined with yRad52 significantly enhances chicken genome editing. These findings could be extensively applied in other organisms. PMID:28068387

  4. Development of the Macro Command Editing Executive System for Factory Workers-Oriented Programless Visual Inspection System

    Science.gov (United States)

    Anezaki, Takashi; Wakitani, Kouichi; Nakamura, Masatoshi; Kubo, Hiroyasu

    Because visual inspection systems are difficult to tune, they create many problems for the kaizen process. This results in increased development costs and time to assure that the inspection systems function properly. In order to improve inspection system development, we designed an easy-tuning system called a “Program-less” visual inspection system. The ROI macro command which consisted of eight kinds of shape recognition macro commands and decision, operation, control commands was built. Furthermore, the macro command editing executive system was developed by the operation of only the GUI without editing source program. The validity of the ROI macro command was proved by the application of 488 places.

  5. Editing Citrus Genome via SaCas9/sgRNA System.

    Science.gov (United States)

    Jia, Hongge; Xu, Jin; Orbović, Vladimir; Zhang, Yunzeng; Wang, Nian

    2017-01-01

    SaCas9/sgRNA, derived from Staphylococcus aureus , is an alternative system for genome editing to Streptococcus pyogenes SpCas9/sgRNA. The smaller SaCas9 recognizes a different protospacer adjacent motif (PAM) sequence from SpCas9. SaCas9/sgRNA has been employed to edit the genomes of Arabidopsis , tobacco and rice. In this study, we aimed to test its potential in genome editing of citrus. Transient expression of SaCas9/sgRNA in Duncan grapefruit via Xcc-facilitated agroinfiltration showed it can successfully modify CsPDS and Cs2g12470 . Subsequently, binary vector GFP-p1380N-SaCas9/35S-sgRNA1:AtU6-sgRNA2 was developed to edit two target sites of Cs7g03360 in transgenic Carrizo citrange. Twelve GFP-positive Carrizo transformants were successfully established, designated as #Cz1 to #Cz12. Based on targeted next generation sequencing results, the mutation rates for the two targets ranged from 15.55 to 39.13% for sgRNA1 and 49.01 to 79.67% for sgRNA2. Therefore, SaCas9/sgRNA can be used as an alternative tool to SpCas9/sgRNA for citrus genome editing.

  6. Genome Editing with Crispr-Cas9 Systems: Basic Research and Clinical Applications

    Directory of Open Access Journals (Sweden)

    Anna Meiliana

    2017-04-01

    Full Text Available BACKGROUND: Recently established genome editing technologies will open new avenues for biological research and development. Human genome editing is a powerful tool which offers great scientific and therapeutic potential. CONTENT: Genome editing using the clustered regularly interspaced short palindromic repeats (CRISPR/CRISPRassociated protein 9 (Cas9 technology is revolutionizing the gene function studies and possibly will give rise to an entirely new degree of therapeutics for a large range of diseases. Prompt advances in the CRISPR/Cas9 technology, as well as delivery modalities for gene therapy applications, are dismissing the barriers to the clinical translation of this technology. Many studies conducted showed promising results, but as current available technologies for evaluating off-target gene modification, several elements must be addressed to validate the safety of the CRISPR/Cas9 platform for clinical application, as the ethical implication as well. SUMMARY: The CRISPR/Cas9 system is a powerful genome editing technology with the potential to create a variety of novel therapeutics for a range of diseases, many of which are currently untreatable. KEYWORDS: genome editing, CRISPR-Cas, guideRNA, DSB, ZFNs, TALEN

  7. CRISPR–Cas system enables fast and simple genome editing of industrial Saccharomyces cerevisiae strains

    DEFF Research Database (Denmark)

    Stovicek, Vratislav; Borodina, Irina; Förster, Jochen

    2015-01-01

    , their genetic manipulation is challenging, as they are usually diploid or polyploid. Therefore, there is a need to develop more efficient genetic engineering tools. We applied a CRISPR–Cas9 system for genome editing of different industrial strains, and show simultaneous disruption of two alleles of a gene...

  8. The Self-Inactivating KamiCas9 System for the Editing of CNS Disease Genes.

    Science.gov (United States)

    Merienne, Nicolas; Vachey, Gabriel; de Longprez, Lucie; Meunier, Cécile; Zimmer, Virginie; Perriard, Guillaume; Canales, Mathieu; Mathias, Amandine; Herrgott, Lucas; Beltraminelli, Tim; Maulet, Axelle; Dequesne, Thomas; Pythoud, Catherine; Rey, Maria; Pellerin, Luc; Brouillet, Emmanuel; Perrier, Anselme L; du Pasquier, Renaud; Déglon, Nicole

    2017-09-19

    Neurodegenerative disorders are a major public health problem because of the high frequency of these diseases. Genome editing with the CRISPR/Cas9 system is making it possible to modify the sequence of genes linked to these disorders. We designed the KamiCas9 self-inactivating editing system to achieve transient expression of the Cas9 protein and high editing efficiency. In the first application, the gene responsible for Huntington's disease (HD) was targeted in adult mouse neuronal and glial cells. Mutant huntingtin (HTT) was efficiently inactivated in mouse models of HD, leading to an improvement in key markers of the disease. Sequencing of potential off-targets with the constitutive Cas9 system in differentiated human iPSC revealed a very low incidence with only one site above background level. This off-target frequency was significantly reduced with the KamiCas9 system. These results demonstrate the potential of the self-inactivating CRISPR/Cas9 editing for applications in the context of neurodegenerative diseases. Copyright © 2017 The Author(s). Published by Elsevier Inc. All rights reserved.

  9. Improving Steam System Performance: A Sourcebook for Industry, Second Edition

    Energy Technology Data Exchange (ETDEWEB)

    None

    2012-02-23

    This sourcebook is designed to provide steam system users with a reference that describes the basic steam system components, outlines opportunities for energy and performance improvements, and discusses the benefits of a systems approach in identifying and implementing these improvement opportunities. The sourcebook is divided into three main sections: steam system basics, performance improvement opportunities, and where to find help.

  10. Delivery strategies of the CRISPR-Cas9 gene-editing system for therapeutic applications.

    Science.gov (United States)

    Liu, Chang; Zhang, Li; Liu, Hao; Cheng, Kun

    2017-11-28

    The CRISPR-Cas9 genome-editing system is a part of the adaptive immune system in archaea and bacteria to defend against invasive nucleic acids from phages and plasmids. The single guide RNA (sgRNA) of the system recognizes its target sequence in the genome, and the Cas9 nuclease of the system acts as a pair of scissors to cleave the double strands of DNA. Since its discovery, CRISPR-Cas9 has become the most robust platform for genome engineering in eukaryotic cells. Recently, the CRISPR-Cas9 system has triggered enormous interest in therapeutic applications. CRISPR-Cas9 can be applied to correct disease-causing gene mutations or engineer T cells for cancer immunotherapy. The first clinical trial using the CRISPR-Cas9 technology was conducted in 2016. Despite the great promise of the CRISPR-Cas9 technology, several challenges remain to be tackled before its successful applications for human patients. The greatest challenge is the safe and efficient delivery of the CRISPR-Cas9 genome-editing system to target cells in human body. In this review, we will introduce the molecular mechanism and different strategies to edit genes using the CRISPR-Cas9 system. We will then highlight the current systems that have been developed to deliver CRISPR-Cas9 in vitro and in vivo for various therapeutic purposes. Copyright © 2017 Elsevier B.V. All rights reserved.

  11. Improvements in algal lipid production: a systems biology and gene editing approach.

    Science.gov (United States)

    Banerjee, Avik; Banerjee, Chiranjib; Negi, Sangeeta; Chang, Jo-Shu; Shukla, Pratyoosh

    2017-08-09

    In the wake of rising energy demands, microalgae have emerged as potential sources of sustainable and renewable carbon-neutral fuels, such as bio-hydrogen and bio-oil. For rational metabolic engineering, the elucidation of metabolic pathways in fine detail and their manipulation according to requirements is the key to exploiting the use of microalgae. Emergence of site-specific nucleases have revolutionized applied research leading to biotechnological gains. Genome engineering as well as modulation of the endogenous genome with high precision using CRISPR systems is being gradually employed in microalgal research. Further, to optimize and produce better algal platforms, use of systems biology network analysis and integration of omics data is required. This review discusses two important approaches: systems biology and gene editing strategies used on microalgal systems with a focus on biofuel production and sustainable solutions. It also emphasizes that the integration of such systems would contribute and compliment applied research on microalgae. Recent advances in microalgae are discussed, including systems biology, gene editing approaches in lipid bio-synthesis, and antenna engineering. Lastly, it has been attempted here to showcase how CRISPR/Cas systems are a better editing tool than existing techniques that can be utilized for gene modulation and engineering during biofuel production.

  12. Photovoltaic System Pricing Trends. Historical, Recent, and Near-Term Projections, 2015 Edition

    Energy Technology Data Exchange (ETDEWEB)

    Feldman, David [National Renewable Energy Lab. (NREL), Golden, CO (United States); Barbose, Galen [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Margolis, Robert [National Renewable Energy Lab. (NREL), Golden, CO (United States); Bolinger, Mark [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Chung, Donald [National Renewable Energy Lab. (NREL), Golden, CO (United States); Fu, Ran [National Renewable Energy Lab. (NREL), Golden, CO (United States); Seel, Joachim [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Davidson, Carolyn [National Renewable Energy Lab. (NREL), Golden, CO (United States); Darghouth, Naïm [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Wiser, Ryan [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2015-08-25

    This presentation, based on research at Lawrence Berkeley National Laboratory and the National Renewable Energy Laboratory, provides a high-level overview of historical, recent, and projected near-term PV pricing trends in the United States focusing on the installed price of PV systems. It also attempts to provide clarity surrounding the wide variety of potentially conflicting data available about PV system prices. This PowerPoint is the fourth edition from this series.

  13. Efficient gene editing in Corynebacterium glutamicum using the CRISPR/Cas9 system.

    Science.gov (United States)

    Peng, Feng; Wang, Xinyue; Sun, Yang; Dong, Guibin; Yang, Yankun; Liu, Xiuxia; Bai, Zhonghu

    2017-11-14

    Corynebacterium glutamicum (C. glutamicum) has traditionally been used as a microbial cell factory for the industrial production of many amino acids and other industrially important commodities. C. glutamicum has recently been established as a host for recombinant protein expression; however, some intrinsic disadvantages could be improved by genetic modification. Gene editing techniques, such as deletion, insertion, or replacement, are important tools for modifying chromosomes. In this research, we report a CRISPR/Cas9 system in C. glutamicum for rapid and efficient genome editing, including gene deletion and insertion. The system consists of two plasmids: one containing a target-specific guide RNA and a homologous sequence to a target gene, the other expressing Cas9 protein. With high efficiency (up to 100%), this system was used to disrupt the porB, mepA, clpX and Ncgl0911 genes, which affect the ability to express proteins. The porB- and mepA-deletion strains had enhanced expression of green fluorescent protein, compared with the wild-type stain. This system can also be used to engineer point mutations and gene insertions. In this study, we adapted the CRISPR/Cas9 system from S. pyogens to gene deletion, point mutations and insertion in C. glutamicum. Compared with published genome modification methods, methods based on the CRISPR/Cas9 system can rapidly and efficiently achieve genome editing. Our research provides a powerful tool for facilitating the study of gene function, metabolic pathways, and enhanced productivity in C. glutamicum.

  14. Banking and Financial Systems. Curriculum Guide. First Edition.

    Science.gov (United States)

    Patton, Jan

    This curriculum guide provides course materials for teachers to use in developing a course in banking and financial systems. Following an introductory section that lists the common essential elements of the course, the guide contains six sections that cover the following course topics: (1) introduction to banking and financial systems; (2) banking…

  15. The International System of Units (SI). Revised Edition.

    Science.gov (United States)

    Page, Chester H., Ed.; Vigoureux, Paul, Ed.

    Provided are definitions of the basic units of the metric system and symbols for these units. Derived units, such as cubic metre, are defined, and symbols for them are provided. Supplementary units, units outside the system, and units temporarily accepted are listed. In Appendix I, the Recommendations and Resolutions of the General Conference of…

  16. Rhode Island Model Evaluation & Support System: Teacher. Edition III

    Science.gov (United States)

    Rhode Island Department of Education, 2015

    2015-01-01

    Rhode Island educators believe that implementing a fair, accurate, and meaningful educator evaluation and support system will help improve teaching and learning. The primary purpose of the Rhode Island Model Teacher Evaluation and Support System (Rhode Island Model) is to help all teachers improve. Through the Model, the goal is to help create a…

  17. Rhode Island Model Evaluation & Support System: Building Administrator. Edition III

    Science.gov (United States)

    Rhode Island Department of Education, 2015

    2015-01-01

    Rhode Island educators believe that implementing a fair, accurate, and meaningful educator evaluation and support system will help improve teaching, learning, and school leadership. The primary purpose of the Rhode Island Model Building Administrator Evaluation and Support System (Rhode Island Model) is to help all building administrators improve.…

  18. Rhode Island Model Evaluation & Support System: Support Professional. Edition II

    Science.gov (United States)

    Rhode Island Department of Education, 2015

    2015-01-01

    Rhode Island educators believe that implementing a fair, accurate, and meaningful evaluation and support system for support professionals will help improve student outcomes. The primary purpose of the Rhode Island Model Support Professional Evaluation and Support System (Rhode Island Model) is to help all support professionals do their best work…

  19. A professional and cost effective digital video editing and image storage system for the operating room.

    Science.gov (United States)

    Scollato, A; Perrini, P; Benedetto, N; Di Lorenzo, N

    2007-06-01

    We propose an easy-to-construct digital video editing system ideal to produce video documentation and still images. A digital video editing system applicable to many video sources in the operating room is described in detail. The proposed system has proved easy to use and permits one to obtain videography quickly and easily. Mixing different streams of video input from all the devices in use in the operating room, the application of filters and effects produces a final, professional end-product. Recording on a DVD provides an inexpensive, portable and easy-to-use medium to store or re-edit or tape at a later time. From stored videography it is easy to extract high-quality, still images useful for teaching, presentations and publications. In conclusion digital videography and still photography can easily be recorded by the proposed system, producing high-quality video recording. The use of firewire ports provides good compatibility with next-generation hardware and software. The high standard of quality makes the proposed system one of the lowest priced products available today.

  20. Rapid evolution of manifold CRISPR systems for plant genome editing

    Directory of Open Access Journals (Sweden)

    Yiping Qi

    2016-11-01

    Full Text Available Advanced CRISPR-Cas9 based technologies first validated in mammalian cell systems are quickly being adapted for use in plants. These new technologies increase CRISPR-Cas9’s utility and effectiveness by diversifying cellular capabilities through expression construct system evolution and enzyme orthogonality, as well as enhanced efficiency through delivery and expression mechanisms. Here, we review the current state of advanced CRISPR-Cas9 and Cpf1 capabilities in plants and cover the rapid evolution of these tools from first generation inducers of double strand breaks for basic genetic manipulations to second and third generation multiplexed systems with myriad functionalities, capabilities and specialized applications. We offer perspective on how to utilize these tools for currently untested research endeavors and analyze strengths and weaknesses of novel CRISPR systems in plants. Advanced CRISPR functionalities and delivery options demonstrated in plants are primarily reviewed but new technologies just coming to the forefront of CRISPR development, or those on the horizon, are briefly discussed. Topics covered are focused on the expansion of expression and delivery capabilities for CRISPR-Cas9 components and broadening targeting range through orthogonal Cas9 and Cpf1 proteins.

  1. Rorschach Form Quality in Two Editions of Exner's Comprehensive System.

    Science.gov (United States)

    Barley, William D.; And Others

    Form level is a major element in the scoring and interpretation of Rorschach responses. Exner's 1974 text and 1976 comprehensive system workbook provided helpful norms and scoring conventions for determining form quality, but its 1985 revision appeared to lead to generally lower levels of form quality. To examine this clinical impression, the…

  2. Electrical Systems. FOS: Fundamentals of Service. Fifth Edition.

    Science.gov (United States)

    John Deere Co., Moline, IL.

    This manual, which is part of a series on agricultural and industrial machinery, deals with electrical systems. Special attention is paid to electricity as it is commonly used on mobile machines. The following topics are covered in the individual chapters: electricity and how it works (current, voltage, and resistance; types of circuits;…

  3. Directory of Library Automation Software, Systems, and Services. 1998 Edition.

    Science.gov (United States)

    Cibbarelli, Pamela R., Ed.; Cibbarelli, Shawn E., Ed.

    This book includes basic information to locate and compare available options for library automation based on various criteria such as hardware requirements, operating systems, components and applications, and price, and provides the necessary contact information to allow further investigation. The major part of the directory lists 211 software…

  4. Genome editing in sea urchin embryos by using a CRISPR/Cas9 system.

    Science.gov (United States)

    Lin, Che-Yi; Su, Yi-Hsien

    2016-01-15

    Sea urchin embryos are a useful model system for investigating early developmental processes and the underlying gene regulatory networks. Most functional studies using sea urchin embryos rely on antisense morpholino oligonucleotides to knockdown gene functions. However, major concerns related to this technique include off-target effects, variations in morpholino efficiency, and potential morpholino toxicity; furthermore, such problems are difficult to discern. Recent advances in genome editing technologies have introduced the prospect of not only generating sequence-specific knockouts, but also providing genome-engineering applications. Two genome editing tools, zinc-finger nuclease (ZFN) and transcription activator-like effector nucleases (TALENs), have been utilized in sea urchin embryos, but the resulting efficiencies are far from satisfactory. The CRISPR (clustered regularly interspaced short palindromic repeat)-Cas9 (CRISPR-associated nuclease 9) system serves as an easy and efficient method with which to edit the genomes of several established and emerging model organisms in the field of developmental biology. Here, we apply the CRISPR/Cas9 system to the sea urchin embryo. We designed six guide RNAs (gRNAs) against the well-studied nodal gene and discovered that five of the gRNAs induced the expected phenotype in 60-80% of the injected embryos. In addition, we developed a simple method for isolating genomic DNA from individual embryos, enabling phenotype to be precisely linked to genotype, and revealed that the mutation rates were 67-100% among the sequenced clones. Of the two potential off-target sites we examined, no off-target effects were observed. The detailed procedures described herein promise to accelerate the usage of CRISPR/Cas9 system for genome editing in sea urchin embryos. Copyright © 2015 Elsevier Inc. All rights reserved.

  5. Merging the Power of the Computer and VCR: Interactive Videotape with the Mandell Instant-Active Interface.

    Science.gov (United States)

    Brown, Scott W.

    1991-01-01

    Describes the Mandell Instant-Active Device, a microcomputer-based system that enables teachers to add questions and/or statement prompts to an existing videotape without affecting the videotape itself. Applications, procedures, student feedback, and hardware requirements are discussed. Ordering information is included. (MES)

  6. Tooth segmentation system with intelligent editing for cephalometric analysis

    Science.gov (United States)

    Chen, Shoupu

    2015-03-01

    Cephalometric analysis is the study of the dental and skeletal relationship in the head, and it is used as an assessment and planning tool for improved orthodontic treatment of a patient. Conventional cephalometric analysis identifies bony and soft-tissue landmarks in 2D cephalometric radiographs, in order to diagnose facial features and abnormalities prior to treatment, or to evaluate the progress of treatment. Recent studies in orthodontics indicate that there are persistent inaccuracies and inconsistencies in the results provided using conventional 2D cephalometric analysis. Obviously, plane geometry is inappropriate for analyzing anatomical volumes and their growth; only a 3D analysis is able to analyze the three-dimensional, anatomical maxillofacial complex, which requires computing inertia systems for individual or groups of digitally segmented teeth from an image volume of a patient's head. For the study of 3D cephalometric analysis, the current paper proposes a system for semi-automatically segmenting teeth from a cone beam computed tomography (CBCT) volume with two distinct features, including an intelligent user-input interface for automatic background seed generation, and a graphics processing unit (GPU) acceleration mechanism for three-dimensional GrowCut volume segmentation. Results show a satisfying average DICE score of 0.92, with the use of the proposed tooth segmentation system, by 15 novice users who segmented a randomly sampled tooth set. The average GrowCut processing time is around one second per tooth, excluding user interaction time.

  7. SunnyTALEN: a second-generation TALEN system for human genome editing.

    Science.gov (United States)

    Sun, Ning; Bao, Zehua; Xiong, Xiong; Zhao, Huimin

    2014-04-01

    Transcription activator-like effector nucleases (TALENs) have rapidly emerged as a powerful genome editing tool. The site-specific DNA double-strand breaks generated by TALENs in the human chromosome can induce homologous recombination or non-homologous end joining, resulting in desired genetic modifications. In this study, we report the development of a TALEN variant, SunnyTALEN, with >2.5-fold improved genome editing efficacy in human cells. The corresponding scaffold increases the rate of genetic modification at all the 13 tested loci of human genome and is compatible with heterodimer TALEN architectures. This enhanced and high-efficiency TALEN variant represents a novel second-generation TALEN system and has great potential for biological and therapeutic applications. © 2013 Wiley Periodicals, Inc.

  8. A simple Gateway-assisted construction system of TALEN genes for plant genome editing.

    Science.gov (United States)

    Kusano, Hiroaki; Onodera, Hitomi; Kihira, Miho; Aoki, Hiromi; Matsuzaki, Hikaru; Shimada, Hiroaki

    2016-07-25

    TALEN is an artificial nuclease being applied for sequence-specific genome editing. For the plant genome editing, a pair of TALEN genes is expressed in the cells, and a binary plasmid for Agrobacterium-mediated transformation should be assembled. We developed a novel procedure using the Gateway-assisted plasmids, named Emerald-Gateway TALEN system. We constructed entry vectors, pPlat plasmids, for construction of a desired TALEN gene using Platinum Gate TALEN kit. We also created destination plasmid, pDual35SGw1301, which allowed two TALEN genes to both DNA strands to recruit using Gateway technology. Resultant TALEN genes were evaluated by the single-strand annealing (SSA) assay in E. coli cells. By this assay, the TALENs recognized the corresponding targets in the divided luciferase gene, and induced a specific recombination to generate an active luciferase gene. Using the TALEN genes constructed, we created a transformant potato cells in which a site-specific mutation occurred at the target site of the GBSS gene. This suggested that our system worked effectively and was applicable as a convenient tool for the plant genome editing.

  9. Data quality system using reference dictionaries and edit distance algorithms

    Science.gov (United States)

    Karbarz, Radosław; Mulawka, Jan

    2015-09-01

    The real art of management it is important to make smart decisions, what in most of the cases is not a trivial task. Those decisions may lead to determination of production level, funds allocation for investments etc. Most of the parameters in decision-making process such as: interest rate, goods value or exchange rate may change. It is well know that these parameters in the decision-making are based on the data contained in datamarts or data warehouse. However, if the information derived from the processed data sets is the basis for the most important management decisions, it is required that the data is accurate, complete and current. In order to achieve high quality data and to gain from them measurable business benefits, data quality system should be used. The article describes the approach to the problem, shows the algorithms in details and their usage. Finally the test results are provide. Test results show the best algorithms (in terms of quality and quantity) for different parameters and data distribution.

  10. Efficient Genome Editing in Apple Using a CRISPR/Cas9 system.

    Science.gov (United States)

    Nishitani, Chikako; Hirai, Narumi; Komori, Sadao; Wada, Masato; Okada, Kazuma; Osakabe, Keishi; Yamamoto, Toshiya; Osakabe, Yuriko

    2016-08-17

    Genome editing is a powerful technique for genome modification in molecular research and crop breeding, and has the great advantage of imparting novel desired traits to genetic resources. However, the genome editing of fruit tree plantlets remains to be established. In this study, we describe induction of a targeted gene mutation in the endogenous apple phytoene desaturase (PDS) gene using the CRISPR/Cas9 system. Four guide RNAs (gRNAs) were designed and stably transformed with Cas9 separately in apple. Clear and partial albino phenotypes were observed in 31.8% of regenerated plantlets for one gRNA, and bi-allelic mutations in apple PDS were confirmed by DNA sequencing. In addition, an 18-bp gRNA also induced a targeted mutation. These CRIPSR/Cas9 induced-mutations in the apple genome suggest activation of the NHEJ pathway, but with some involvement also of the HR pathway. Our results demonstrate that genome editing can be practically applied to modify the apple genome.

  11. Space Science in Action: Earth's Atmosphere [Videotape].

    Science.gov (United States)

    1999

    In this videotape recording, students learn about the layers of the atmosphere and why each is important to the survival of life on the planet. Students discover why the atmosphere is responsible for weather and see how special aircraft actually fly into hurricanes. Students build their own working barometer in a hands-on activity. Contents…

  12. Space Science in Action: Stars [Videotape].

    Science.gov (United States)

    1999

    This videotape recording shows students the many ways scientists look at the stars and how they can use what they see to answer questions such as What are stars made of?, How far away are they?, and How old are the stars? Students learn about the life span of stars and the various stages they pass through from protostar to main sequence star to…

  13. Space Science in Action: Space Exploration [Videotape].

    Science.gov (United States)

    1999

    In this videotape recording, students learn about the human quest to discover what is out in space. Students see the challenges and benefits of space exploration including the development of rocket science, a look back at the space race, and a history of manned space travel. A special section on the Saturn V rocket gives students insight into the…

  14. Videotaping the Lifespan of a Soap Bubble.

    Science.gov (United States)

    Ramme, Goran

    1995-01-01

    Describes how the use of a videotape to record the history of a soap bubble allows a study of many interesting events in considerable detail including interference fringes, convection and turbulence patterns on the surface, formation of black film, and the ultimate explosion of the bubble. (JRH)

  15. Space Science in Action: Astronomy [Videotape].

    Science.gov (United States)

    1999

    This videotape recording teaches students about constellations, star movement, and how scientists have studied celestial bodies throughout history from Ptolemy to Copernicus to the work of the Hubble Space Telescope. An interview with Kathy Thornton, one of the astronauts who repaired the Hubble while in orbit, is featured. A hands-on activity…

  16. Adding Feminist Therapy to Videotape Demonstrations.

    Science.gov (United States)

    Konrad, Jennifer L.; Yoder, Janice D.

    2000-01-01

    Provides directions for presenting a 32-minute series of four videotape segments that highlights the fundamental features of four approaches to psychotherapy, extending its reach to include a feminist perspective. Describes the approaches and included segments. Reports that students' comments demonstrate that the video sequence provided a helpful…

  17. Assessment of Waco, Texas FLIR videotape

    Science.gov (United States)

    Frankel, Donald S.

    2001-09-01

    The FLIR video recorded by the FBI on 19 April 1993, records the final assault on the Branch Davidian compound in Waco, Texas, and the fire in which some 80 members of the sect died. Attention has focused on a number of flashes recorded on the videotape. The author has examined the 1993 videotape and the recorded videotapes of the re-enactment conducted at Fort Hood, Texas on 19 March 2000. The following conclusions have been reached: 1) The flashes seen on the tape cannot be weapons muzzle flash. Their duration is far too long and their spatial extent is far too great. They are almost certainly the result of solar energy or heat energy form nearby vehicles reflected toward the FLIR by debris or puddles. 2) The FLIR video technology has a very low probability of detecting small arms muzzle flash. 3) As a consequence of 2) above, the absence of muzzle flash detection on the FLIR tape does not prove that no weapons were actually fired during the final assault. Indeed, there is ample evidence (not presented here) that the Davidians fired at the federal agents, but none of their muzzle flashes are detectable on the videotape.

  18. Copyright Handbook for Videotapes and Microcomputer Software.

    Science.gov (United States)

    Ensign, David; And Others

    Developed to help library media personnel, administrators, and educators understand and work with the copyright law as it applies to videotape and microcomputer software, this handbook provides: (1) an overview of copyright, including rights granted to copyright holders and libraries and court interpretation of the copyright law; (2) suggestions…

  19. Editing of the Bacillus subtilis Genome by the CRISPR-Cas9 System.

    Science.gov (United States)

    Altenbuchner, Josef

    2016-09-01

    The clustered regularly interspaced short palindromic repeat (CRISPR)-associated (Cas) systems are adaptive immune systems of bacteria. A type II CRISPR-Cas9 system from Streptococcus pyogenes has recently been developed into a genome engineering tool for prokaryotes and eukaryotes. Here, we present a single-plasmid system which allows efficient genome editing of Bacillus subtilis The plasmid pJOE8999 is a shuttle vector that has a pUC minimal origin of replication for Escherichia coli, the temperature-sensitive replication origin of plasmid pE194(ts) for B. subtilis, and a kanamycin resistance gene working in both organisms. For genome editing, it carries the cas9 gene under the control of the B. subtilis mannose-inducible promoter PmanP and a single guide RNA (sgRNA)-encoding sequence transcribed via a strong promoter. This sgRNA guides the Cas9 nuclease to its target. The 20-nucleotide spacer sequence at the 5' end of the sgRNA sequence, responsible for target specificity, is located between BsaI sites. Thus, the target specificity is altered by changing the spacer sequences via oligonucleotides fitted between the BsaI sites. Cas9 in complex with the sgRNA induces double-strand breaks (DSBs) at its target site. Repair of the DSBs and the required modification of the genome are achieved by adding homology templates, usually two PCR fragments obtained from both sides of the target sequence. Two adjacent SfiI sites enable the ordered integration of these homology templates into the vector. The function of the CRISPR-Cas9 vector was demonstrated by introducing two large deletions in the B. subtilis chromosome and by repair of the trpC2 mutation of B. subtilis 168. In prokaryotes, most methods used for scarless genome engineering are based on selection-counterselection systems. The disadvantages are often the lack of a suitable counterselection marker, the toxicity of the compounds needed for counterselection, and the requirement of certain mutations in the target

  20. Predictive value of the seventh edition American Joint Committee on Cancer staging system for conjunctival melanoma.

    Science.gov (United States)

    Yousef, Yacoub A; Finger, Paul T

    2012-05-01

    To evaluate the predictive value of the seventh edition American Joint Committee on Cancer (AJCC) staging system for conjunctival melanoma. Retrospective, observational case series of 42 eyes of 42 patients with conjunctival melanoma studied by reviewing medical records, pathology reports, and color photographs. The main evaluated outcomes were demographic information, laterality, tumor size, thickness, pathologic diagnosis, seventh edition AJCC stage (clinical and pathologic), recurrence, metastasis, and duration of follow-up. There was no sex preference, and the median age was 61 years. Recurrent disease was noted in 33% of patients (n = 14 of 42), with 64% occurring at a median of 2.5 years (range, 1-5 years) after primary treatment. Metastasis was noted in 19% of patients. The significant predictive factors for high risk of tumor recurrence were tumors involving more than 1 quadrant (P = .02), tumors thicker than 0.5 mm (P = .04), and tumor multifocality (P = .04). The significant predictive factors for high risk of tumor metastasis were tumors thicker than 0.5 mm (P = .005), tumor invasiveness (P = .04), pathologic diagnosis of conjunctival melanoma rather than melanoma in situ (P = .04), and tumor recurrence (P < .001). Similarly, increasing AJCC T stages (clinical and pathologic) were associated with unfavorable outcomes. For example, clinical stage-related recurrence rates were 19% (Tis), 27% (T1), 33% (T2), and 75% (T3). Clinical stage-related lymphatic and distant metastasis rates were 0% (Tis), 20% (T1), 0% (T2), and 63% (T3). Advanced AJCC T-stage (clinical and pathologic) tumors were at higher risk for recurrence and metastasis. In this study, the seventh edition AJCC staging system was predictive of local control and systemic spread of conjunctival melanoma.

  1. Reciprocal regulation of A-to-I RNA editing and the vertebrate nervous system

    Directory of Open Access Journals (Sweden)

    Andrew Charles Penn

    2013-04-01

    Full Text Available The fine control of molecules mediating communication in the nervous system is key to adjusting neuronal responsiveness during development and in maintaining the stability of established networks in the face of altered sensory input. To prevent culmination of pathological recurrent network excitation or debilitating periods of quiescence, adaptive alterations occur in the signalling molecules and ion channels that control membrane excitability and synaptic transmission. However, rather than encoding (and thus ‘hardwiring’ modified gene copies, the nervous systems of metazoa have opted for expanding on post-transcriptional pre-mRNA splicing by altering key encoded amino acids using a conserved mechanism of A-to-I RNA editing: the enzymatic deamination of adenosine resulting in a change in the nucleotide to inosine. Inosine exhibits similar base-pairing properties to guanosine with respect to tRNA codon recognition, replication by polymerases and RNA secondary structure forming capacity. In addition to recoding within the open reading frame, adenosine deamination also occurs with high frequency throughout the non-coding transcriptome, where it affects multiple aspects of RNA metabolism and gene expression. We will describe here the recoding function of key RNA editing targets in the mammalian central nervous system (CNS and their potential to be regulated. We will then discuss how interactions of A-to-I editing with gene expression and alternative splicing could play a wider role in regulating the neuronal transcriptome. Finally, we will highlight the increasing complexity of this multifaceted control hub by summarising new findings from high-throughput studies.

  2. The Montana Rivers Information System: Edit/entry program user`s manual

    Energy Technology Data Exchange (ETDEWEB)

    1992-07-01

    The Montana Rivers Information System (MRIS) was initiated to assess the state`s fish, wildlife, and recreation value; and natural cultural and geologic features. The MRIS is now a set of data bases containing part of the information in the Natural Heritage Program natural features and threatened and endangered species data bases. The purpose of this User`s Manual is to: (1) describe to the user how to maintain the MRIS database of their choice by updating, changing, deleting, and adding records using the edit/entry programs; and (2) provide to the user all information and instructions necessary to complete data entry into the MRIS databases.

  3. Solar heating and cooling of residential buildings: design of systems, 1980 edition

    Energy Technology Data Exchange (ETDEWEB)

    None

    1980-09-01

    This manual was prepared primarily for use in conducting a practical training course on the design of solar heating and cooling systems for residential and small office buildings, but may also be useful as a general reference text. The content level is appropriate for persons with different and varied backgrounds, although it is assumed that readers possess a basic understanding of heating, ventilating, and air-conditioning systems of conventional (non-solar) types. This edition is a revision of the manual with the same title, first printed and distributed by the US Government Printing Office in October 1977. The manual has been reorganized, new material has been added, and outdated information has been deleted. Only active solar systems are described. Liquid and air-heating solar systems for combined space and service water heating or service water heating are included. Furthermore, only systems with proven experience are discussed to any extent.

  4. ELECTRONIC PROFESSIONAL EDITIONS IN THE SYSTEM OF SCIENTIFIC PERIODICALS: STATE AND PROSPECTS

    Directory of Open Access Journals (Sweden)

    Nataliia M. Kropocheva

    2014-02-01

    Full Text Available The article highlights relevant current problems concerning the formation, present state and prospects of the development of the native electronic professional editions on pedagogy. The historical overview of the development of the electronic books in the world and in Ukraine in general, and also including the professional editions was made. It was conducted the analysis of national and international legal framework for existing electronic editions, as well as researched the structure and software of the native electronic professional editions on pedagogy. Based on the results, it was formulated the conclusions and developed some suggestions for the improvement of electronic editions.

  5. Multiplex gene editing of the Yarrowia lipolytica genome using the CRISPR-Cas9 system.

    Science.gov (United States)

    Gao, Shuliang; Tong, Yangyang; Wen, Zhiqiang; Zhu, Li; Ge, Mei; Chen, Daijie; Jiang, Yu; Yang, Sheng

    2016-08-01

    Yarrowia lipolytica is categorized as a generally recognized as safe (GRAS) organism and is a heavily documented, unconventional yeast that has been widely incorporated into multiple industrial fields to produce valuable biochemicals. This study describes the construction of a CRISPR-Cas9 system for genome editing in Y. lipolytica using a single plasmid (pCAS1yl or pCAS2yl) to transport Cas9 and relevant guide RNA expression cassettes, with or without donor DNA, to target genes. Two Cas9 target genes, TRP1 and PEX10, were repaired by non-homologous end-joining (NHEJ) or homologous recombination, with maximal efficiencies in Y. lipolytica of 85.6 % for the wild-type strain and 94.1 % for the ku70/ku80 double-deficient strain, within 4 days. Simultaneous double and triple multigene editing was achieved with pCAS1yl by NHEJ, with efficiencies of 36.7 or 19.3 %, respectively, and the pCASyl system was successfully expanded to different Y. lipolytica breeding strains. This timesaving method will enable and improve synthetic biology, metabolic engineering and functional genomic studies of Y. lipolytica.

  6. [Chromosomal large fragment deletion induced by CRISPR/Cas9 gene editing system].

    Science.gov (United States)

    Cheng, L H; Liu, Y; Niu, T

    2017-05-14

    Objective: Using CRISPR-Cas9 gene editing technology to achieve a number of genes co-deletion on the same chromosome. Methods: CRISPR-Cas9 lentiviral plasmid that could induce deletion of Aloxe3-Alox12b-Alox8 cluster genes located on mouse 11B3 chromosome was constructed via molecular clone. HEK293T cells were transfected to package lentivirus of CRISPR or Cas9 cDNA, then mouse NIH3T3 cells were infected by lentivirus and genomic DNA of these cells was extracted. The deleted fragment was amplified by PCR, TA clone, Sanger sequencing and other techniques were used to confirm the deletion of Aloxe3-Alox12b-Alox8 cluster genes. Results: The CRISPR-Cas9 lentiviral plasmid, which could induce deletion of Aloxe3-Alox12b-Alox8 cluster genes, was successfully constructed. Deletion of target chromosome fragment (Aloxe3-Alox12b-Alox8 cluster genes) was verified by PCR. The deletion of Aloxe3-Alox12b-Alox8 cluster genes was affirmed by TA clone, Sanger sequencing, and the breakpoint junctions of the CRISPR-Cas9 system mediate cutting events were accurately recombined, insertion mutation did not occur between two cleavage sites at all. Conclusion: Large fragment deletion of Aloxe3-Alox12b-Alox8 cluster genes located on mouse chromosome 11B3 was successfully induced by CRISPR-Cas9 gene editing system.

  7. RNA editing in bacteria recodes multiple proteins and regulates an evolutionarily conserved toxin-antitoxin system.

    Science.gov (United States)

    Bar-Yaacov, Dan; Mordret, Ernest; Towers, Ruth; Biniashvili, Tammy; Soyris, Clara; Schwartz, Schraga; Dahan, Orna; Pilpel, Yitzhak

    2017-10-01

    Adenosine (A) to inosine (I) RNA editing is widespread in eukaryotes. In prokaryotes, however, A-to-I RNA editing was only reported to occur in tRNAs but not in protein-coding genes. By comparing DNA and RNA sequences of Escherichia coli, we show for the first time that A-to-I editing occurs also in prokaryotic mRNAs and has the potential to affect the translated proteins and cell physiology. We found 15 novel A-to-I editing events, of which 12 occurred within known protein-coding genes where they always recode a tyrosine (TAC) into a cysteine (TGC) codon. Furthermore, we identified the tRNA-specific adenosine deaminase (tadA) as the editing enzyme of all these editing sites, thus making it the first identified RNA editing enzyme that modifies both tRNAs and mRNAs. Interestingly, several of the editing targets are self-killing toxins that belong to evolutionarily conserved toxin-antitoxin pairs. We focused on hokB, a toxin that confers antibiotic tolerance by growth inhibition, as it demonstrated the highest level of such mRNA editing. We identified a correlated mutation pattern between the edited and a DNA hard-coded Cys residue positions in the toxin and demonstrated that RNA editing occurs in hokB in two additional bacterial species. Thus, not only the toxin is evolutionarily conserved but also the editing itself within the toxin is. Finally, we found that RNA editing in hokB increases as a function of cell density and enhances its toxicity. Our work thus demonstrates the occurrence, regulation, and functional consequences of RNA editing in bacteria. © 2017 Bar-Yaacov et al.; Published by Cold Spring Harbor Laboratory Press.

  8. Development of a genome editing technique using the CRISPR/Cas9 system in the industrial filamentous fungus Aspergillus oryzae.

    Science.gov (United States)

    Katayama, Takuya; Tanaka, Yuki; Okabe, Tomoya; Nakamura, Hidetoshi; Fujii, Wataru; Kitamoto, Katsuhiko; Maruyama, Jun-Ichi

    2016-04-01

    To develop a genome editing method using the CRISPR/Cas9 system in Aspergillus oryzae, the industrial filamentous fungus used in Japanese traditional fermentation and for the production of enzymes and heterologous proteins. To develop the CRISPR/Cas9 system as a genome editing technique for A. oryzae, we constructed plasmids expressing the gene encoding Cas9 nuclease and single guide RNAs for the mutagenesis of target genes. We introduced these into an A. oryzae strain and obtained transformants containing mutations within each target gene that exhibited expected phenotypes. The mutational rates ranged from 10 to 20 %, and 1 bp deletions or insertions were the most commonly induced mutations. We developed a functional and versatile genome editing method using the CRISPR/Cas9 system in A. oryzae. This technique will contribute to the use of efficient targeted mutagenesis in many A. oryzae industrial strains.

  9. Gene Editing and Crop Improvement Using CRISPR-Cas9 System

    Science.gov (United States)

    Arora, Leena; Narula, Alka

    2017-01-01

    Advancements in Genome editing technologies have revolutionized the fields of functional genomics and crop improvement. CRISPR/Cas9 (clustered regularly interspaced short palindromic repeat)-Cas9 is a multipurpose technology for genetic engineering that relies on the complementarity of the guideRNA (gRNA) to a specific sequence and the Cas9 endonuclease activity. It has broadened the agricultural research area, bringing in new opportunities to develop novel plant varieties with deletion of detrimental traits or addition of significant characters. This RNA guided genome editing technology is turning out to be a groundbreaking innovation in distinct branches of plant biology. CRISPR technology is constantly advancing including options for various genetic manipulations like generating knockouts; making precise modifications, multiplex genome engineering, and activation and repression of target genes. The review highlights the progression throughout the CRISPR legacy. We have studied the rapid evolution of CRISPR/Cas9 tools with myriad functionalities, capabilities, and specialized applications. Among varied diligences, plant nutritional improvement, enhancement of plant disease resistance and production of drought tolerant plants are reviewed. The review also includes some information on traditional delivery methods of Cas9-gRNA complexes into plant cells and incorporates the advent of CRISPR ribonucleoproteins (RNPs) that came up as a solution to various limitations that prevailed with plasmid-based CRISPR system. PMID:29167680

  10. Gene Editing and Crop Improvement Using CRISPR-Cas9 System

    Directory of Open Access Journals (Sweden)

    Leena Arora

    2017-11-01

    Full Text Available Advancements in Genome editing technologies have revolutionized the fields of functional genomics and crop improvement. CRISPR/Cas9 (clustered regularly interspaced short palindromic repeat-Cas9 is a multipurpose technology for genetic engineering that relies on the complementarity of the guideRNA (gRNA to a specific sequence and the Cas9 endonuclease activity. It has broadened the agricultural research area, bringing in new opportunities to develop novel plant varieties with deletion of detrimental traits or addition of significant characters. This RNA guided genome editing technology is turning out to be a groundbreaking innovation in distinct branches of plant biology. CRISPR technology is constantly advancing including options for various genetic manipulations like generating knockouts; making precise modifications, multiplex genome engineering, and activation and repression of target genes. The review highlights the progression throughout the CRISPR legacy. We have studied the rapid evolution of CRISPR/Cas9 tools with myriad functionalities, capabilities, and specialized applications. Among varied diligences, plant nutritional improvement, enhancement of plant disease resistance and production of drought tolerant plants are reviewed. The review also includes some information on traditional delivery methods of Cas9-gRNA complexes into plant cells and incorporates the advent of CRISPR ribonucleoproteins (RNPs that came up as a solution to various limitations that prevailed with plasmid-based CRISPR system.

  11. Gene Editing and Crop Improvement Using CRISPR-Cas9 System.

    Science.gov (United States)

    Arora, Leena; Narula, Alka

    2017-01-01

    Advancements in Genome editing technologies have revolutionized the fields of functional genomics and crop improvement. CRISPR/Cas9 (clustered regularly interspaced short palindromic repeat)-Cas9 is a multipurpose technology for genetic engineering that relies on the complementarity of the guideRNA (gRNA) to a specific sequence and the Cas9 endonuclease activity. It has broadened the agricultural research area, bringing in new opportunities to develop novel plant varieties with deletion of detrimental traits or addition of significant characters. This RNA guided genome editing technology is turning out to be a groundbreaking innovation in distinct branches of plant biology. CRISPR technology is constantly advancing including options for various genetic manipulations like generating knockouts; making precise modifications, multiplex genome engineering, and activation and repression of target genes. The review highlights the progression throughout the CRISPR legacy. We have studied the rapid evolution of CRISPR/Cas9 tools with myriad functionalities, capabilities, and specialized applications. Among varied diligences, plant nutritional improvement, enhancement of plant disease resistance and production of drought tolerant plants are reviewed. The review also includes some information on traditional delivery methods of Cas9-gRNA complexes into plant cells and incorporates the advent of CRISPR ribonucleoproteins (RNPs) that came up as a solution to various limitations that prevailed with plasmid-based CRISPR system.

  12. Genome editing in Ustilago maydis using the CRISPR-Cas system.

    Science.gov (United States)

    Schuster, Mariana; Schweizer, Gabriel; Reissmann, Stefanie; Kahmann, Regine

    2016-04-01

    This communication describes the establishment of the type II bacterial CRISPR-Cas9 system to efficiently disrupt target genes in the fungal maize pathogen Ustilago maydis. A single step transformation of a self-replicating plasmid constitutively expressing the U. maydis codon-optimized cas9 gene and a suitable sgRNA under control of the U. maydis U6 snRNA promoter was sufficient to induce genome editing. On average 70% of the progeny of a single transformant were disrupted within the respective b gene. Without selection the self-replicating plasmid was lost rapidly allowing transient expression of the CRISPR-Cas9 system to minimize potential long-term negative effects of Cas9. This technology will be an important advance for the simultaneous disruption of functionally redundant genes and gene families to investigate their contribution to virulence of U. maydis. Copyright © 2015 Elsevier Inc. All rights reserved.

  13. Montana Rivers Information System : Edit/Entry Program User's Manual.

    Energy Technology Data Exchange (ETDEWEB)

    United States. Bonneville Power Administration; Montana Department of Fish, Wildlife and Parks

    1992-07-01

    The Montana Rivers Information System (MRIS) was initiated to assess the state`s fish, wildlife, and recreation value; and natural cultural, and geologic features. The MRIS is now a set of data bases containing part of the information in the Natural Heritage Program natural features and threatened and endangered species data bases and comprises of the Montana Interagency Stream Fisheries Database; the MDFWP Recreation Database; and the MDFWP Wildlife Geographic Information System. The purpose of this User`s Manual is to describe to the user how to maintain the MRIS database of their choice by updating, changing, deleting, and adding records using the edit/entry programs; and to provide to the user all information and instructions necessary to complete data entry into the MRIS databases.

  14. CRISPR/Cas9 Genome-Editing System in Human Stem Cells: Current Status and Future Prospects

    Directory of Open Access Journals (Sweden)

    Zhao Zhang

    2017-12-01

    Full Text Available Genome-editing involves the insertion, deletion, or replacement of DNA in the genome of a living organism using “molecular scissors.” Traditional genome editing with engineered nucleases for human stem cells is limited by its low efficiency, high cost, and poor specificity. The CRISPR system has recently emerged as a powerful gene manipulation technique with advantages of high editing efficiency and low cost. Although this technique offers huge potential for gene manipulation in various organisms ranging from prokaryotes to higher mammals, there remain many challenges in human stem cell research. In this review, we highlight the basic biology and application of the CRISPR/Cas9 system in current human stem cell research, discuss its advantages and challenges, and debate the future prospects for human stem cells in regenerative medicine.

  15. The Neisseria meningitidis CRISPR-Cas9 System Enables Specific Genome Editing in Mammalian Cells

    Science.gov (United States)

    Lee, Ciaran M; Cradick, Thomas J; Bao, Gang

    2016-01-01

    The clustered regularly-interspaced short palindromic repeats (CRISPR)—CRISPR-associated (Cas) system from Streptococcus pyogenes (Spy) has been successfully adapted for RNA-guided genome editing in a wide range of organisms. However, numerous reports have indicated that Spy CRISPR-Cas9 systems may have significant off-target cleavage of genomic DNA sequences differing from the intended on-target site. Here, we report the performance of the Neisseria meningitidis (Nme) CRISPR-Cas9 system that requires a longer protospacer-adjacent motif for site-specific cleavage, and present a comparison between the Spy and Nme CRISPR-Cas9 systems targeting the same protospacer sequence. The results with the native crRNA and tracrRNA as well as a chimeric single guide RNA for the Nme CRISPR-Cas9 system were also compared. Our results suggest that, compared with the Spy system, the Nme CRISPR-Cas9 system has similar or lower on-target cleavage activity but a reduced overall off-target effect on a genomic level when sites containing three or fewer mismatches are considered. Thus, the Nme CRISPR-Cas9 system may represent a safer alternative for precision genome engineering applications. PMID:26782639

  16. The Neisseria meningitidis CRISPR-Cas9 System Enables Specific Genome Editing in Mammalian Cells.

    Science.gov (United States)

    Lee, Ciaran M; Cradick, Thomas J; Bao, Gang

    2016-03-01

    The clustered regularly-interspaced short palindromic repeats (CRISPR)-CRISPR-associated (Cas) system from Streptococcus pyogenes (Spy) has been successfully adapted for RNA-guided genome editing in a wide range of organisms. However, numerous reports have indicated that Spy CRISPR-Cas9 systems may have significant off-target cleavage of genomic DNA sequences differing from the intended on-target site. Here, we report the performance of the Neisseria meningitidis (Nme) CRISPR-Cas9 system that requires a longer protospacer-adjacent motif for site-specific cleavage, and present a comparison between the Spy and Nme CRISPR-Cas9 systems targeting the same protospacer sequence. The results with the native crRNA and tracrRNA as well as a chimeric single guide RNA for the Nme CRISPR-Cas9 system were also compared. Our results suggest that, compared with the Spy system, the Nme CRISPR-Cas9 system has similar or lower on-target cleavage activity but a reduced overall off-target effect on a genomic level when sites containing three or fewer mismatches are considered. Thus, the Nme CRISPR-Cas9 system may represent a safer alternative for precision genome engineering applications.

  17. Digital Video Editing

    Science.gov (United States)

    McConnell, Terry

    2004-01-01

    Monica Adams, head librarian at Robinson Secondary in Fairfax country, Virginia, states that librarians should have the technical knowledge to support projects related to digital video editing. The process of digital video editing and the cables, storage issues and the computer system with software is described.

  18. The genome editing revolution

    DEFF Research Database (Denmark)

    Stella, Stefano; Montoya, Guillermo

    2016-01-01

    -Cas system has become the main tool for genome editing in many laboratories. Currently the targeted genome editing technology has been used in many fields and may be a possible approach for human gene therapy. Furthermore, it can also be used to modifying the genomes of model organisms for studying human...

  19. The majority of transcripts in the squid nervous system are extensively recoded by A-to-I RNA editing

    Science.gov (United States)

    Alon, Shahar; Garrett, Sandra C; Levanon, Erez Y; Olson, Sara; Graveley, Brenton R; Rosenthal, Joshua J C; Eisenberg, Eli

    2015-01-01

    RNA editing by adenosine deamination alters genetic information from the genomic blueprint. When it recodes mRNAs, it gives organisms the option to express diverse, functionally distinct, protein isoforms. All eumetazoans, from cnidarians to humans, express RNA editing enzymes. However, transcriptome-wide screens have only uncovered about 25 transcripts harboring conserved recoding RNA editing sites in mammals and several hundred recoding sites in Drosophila. These studies on few established models have led to the general assumption that recoding by RNA editing is extremely rare. Here we employ a novel bioinformatic approach with extensive validation to show that the squid Doryteuthis pealeii recodes proteins by RNA editing to an unprecedented extent. We identify 57,108 recoding sites in the nervous system, affecting the majority of the proteins studied. Recoding is tissue-dependent, and enriched in genes with neuronal and cytoskeletal functions, suggesting it plays an important role in brain physiology. DOI: http://dx.doi.org/10.7554/eLife.05198.001 PMID:25569156

  20. Comparing Streaming Video and Videotapes: Can Streaming Video Convey Affective Meaning as Well as Videotape?

    Science.gov (United States)

    Cofield, Jay L.

    This study investigated whether or not low-bandwidth streaming video could be useful for affective purposes. A group of 30 students in a cinema course at a public, liberal arts university viewed a 10-minute dramatic video scene by either videotape or low-bandwidth streaming video. They also took a survey to determine their affective responses and…

  1. Handbook of Response to Intervention: The Science and Practice of Multi-Tiered Systems of Support, 2nd Edition

    Science.gov (United States)

    Jimerson, Shane R., Ed.; Burns, Matthew K., Ed.; VanDerHeyden, Amanda M., Ed.

    2016-01-01

    The second edition of this essential handbook provides a comprehensive, updated overview of the science that informs best practices for the implementation of response to intervention (RTI) processes within Multi-Tiered Systems of Support (MTSS) to facilitate the academic success of all students. The volume includes insights from leading scholars…

  2. Exploiting off-targeting in guide-RNAs for CRISPR systems for simultaneous editing of multiple genes

    DEFF Research Database (Denmark)

    Ferreira, Raphael; Gatto, Francesco; Nielsen, Jens

    2017-01-01

    Bioinformatics tools to design guide-RNAs (gRNAs) in Clustered Regularly Interspaced Short Palindromic Repeats systems mostly focused on minimizing off-targeting to enhance efficacy of genome editing. However, there are circumstances in which off-targeting might be desirable to target multiple ge...

  3. Plant genome editing using engineered nucleases and success of CRISPR/Cas9 system

    Directory of Open Access Journals (Sweden)

    Moon Sajid

    2017-08-01

    Full Text Available Development of new plant breeding techniques have facilitated easy manipulation of plants at genetic level. Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR/CRISPR associated protein9 (Cas9 system is a valuable addition in programmable nucleases. The CRISPR/Cas9 system uses an RNA component to recognize a target DNA sequences and it has shown promising results with respect to simultaneous editing of multigenic plant traits. In this review, components of CRISPR/Cas9, their construction and its methods of delivery to plant cells are analyzed. Variation in nucleotide sequence of the protospacer adjacent motif, codon optimization and progress in web-based bioinformatic tools, will make CRISPR/Cas9 systems more efficient for plants. Development and optimization of protocols to efficiently target all plant species is still under development. Along with this, methods to inspect induced mutation and efficiency of the system have also been reviewed. Auxiliary improvements and understanding are still required to expand the CRISPR/Cas9 systems to target complex genome architectures and epigenetic elements.

  4. Genome Editing in Clostridium saccharoperbutylacetonicum N1-4 with the CRISPR-Cas9 System.

    Science.gov (United States)

    Wang, Shaohua; Dong, Sheng; Wang, Pixiang; Tao, Yong; Wang, Yi

    2017-05-15

    Clostridium saccharoperbutylacetonicum N1-4 is well known as a hyper-butanol-producing strain. However, the lack of genetic engineering tools hinders further elucidation of its solvent production mechanism and development of more robust strains. In this study, we set out to develop an efficient genome engineering system for this microorganism based on the clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated 9 (CRISPR-Cas9) system. First, the functionality of the CRISPR-Cas9 system previously customized for Clostridium beijerinckii was evaluated in C. saccharoperbutylacetonicum by targeting pta and buk , two essential genes for acetate and butyrate production, respectively. pta and buk single and double deletion mutants were successfully obtained based on this system. However, the genome engineering efficiency was rather low (the mutation rate is CRISPR-Cas9 system is highly desirable for efficient genome editing in C. saccharoperbutylacetonicum Batch fermentation results revealed that both the acid and solvent production profiles were altered due to the disruption of acid production pathways; however, neither acetate nor butyrate production was eliminated with the deletion of the corresponding gene. The butanol production, yield, and selectivity were improved in mutants, depending on the fermentation medium. In the pta buk double deletion mutant, the butanol production in P2 medium reached 19.0 g/liter, which is one of the highest levels ever reported from batch fermentations. IMPORTANCE An efficient CRISPR-Cas9 genome engineering system was developed for C. saccharoperbutylacetonicum N1-4. This paves the way for elucidating the solvent production mechanism in this hyper-butanol-producing microorganism and developing strains with desirable butanol-producing features. This tool can be easily adapted for use in closely related microorganisms. As also reported by others, here we demonstrated with solid data that the highly efficient

  5. Artificial Virus Delivers CRISPR-Cas9 System for Genome Editing of Cells in Mice.

    Science.gov (United States)

    Li, Ling; Song, Linjiang; Liu, Xiaowei; Yang, Xi; Li, Xia; He, Tao; Wang, Ning; Yang, Suleixin; Yu, Chuan; Yin, Tao; Wen, Yanzhu; He, Zhiyao; Wei, Xiawei; Su, Weijun; Wu, Qinjie; Yao, Shaohua; Gong, Changyang; Wei, Yuquan

    2017-01-24

    CRISPR-Cas9 has emerged as a versatile genome-editing platform. However, due to the large size of the commonly used CRISPR-Cas9 system, its effective delivery has been a challenge and limits its utility for basic research and therapeutic applications. Herein, a multifunctional nucleus-targeting "core-shell" artificial virus (RRPHC) was constructed for the delivery of CRISPR-Cas9 system. The artificial virus could efficiently load with the CRISPR-Cas9 system, accelerate the endosomal escape, and promote the penetration into the nucleus without additional nuclear-localization signal, thus enabling targeted gene disruption. Notably, the artificial virus is more efficient than SuperFect, Lipofectamine 2000, and Lipofectamine 3000. When loaded with a CRISPR-Cas9 plasmid, it induced higher targeted gene disruption efficacy than that of Lipofectamine 3000. Furthermore, the artificial virus effectively targets the ovarian cancer via dual-receptor-mediated endocytosis and had minimum side effects. When loaded with the Cas9-hMTH1 system targeting MTH1 gene, RRPHC showed effective disruption of MTH1 in vivo. This strategy could be adapted for delivering CRISPR-Cas9 plasmid or other functional nucleic acids in vivo.

  6. Regulation of Gene Editing Activity Directed by Single-Stranded Oligonucleotides and CRISPR/Cas9 Systems.

    Science.gov (United States)

    Bialk, Pawel; Rivera-Torres, Natalia; Strouse, Bryan; Kmiec, Eric B

    2015-01-01

    Single-stranded DNA oligonucleotides (ssODNs) can direct the repair of a single base mutation in human genes. While the regulation of this gene editing reaction has been partially elucidated, the low frequency with which repair occurs has hampered development toward clinical application. In this work a CRISPR/Cas9 complex is employed to induce double strand DNA breakage at specific sites surrounding the nucleotide designated for exchange. The result is a significant elevation in ssODN-directed gene repair, validated by a phenotypic readout. By analysing reaction parameters, we have uncovered restrictions on gene editing activity involving CRISPR/Cas9 complexes. First, ssODNs that hybridize to the non-transcribed strand direct a higher level of gene repair than those that hybridize to the transcribed strand. Second, cleavage must be proximal to the targeted mutant base to enable higher levels of gene editing. Third, DNA cleavage enables a higher level of gene editing activity as compared to single-stranded DNA nicks, created by modified Cas9 (Nickases). Fourth, we calculated the hybridization potential and free energy levels of ssODNs that are complementary to the guide RNA sequences of CRISPRs used in this study. We find a correlation between free energy potential and the capacity of single-stranded oligonucleotides to inhibit specific DNA cleavage activity, thereby indirectly reducing gene editing activity. Our data provide novel information that might be taken into consideration in the design and usage of CRISPR/Cas9 systems with ssODNs for gene editing.

  7. Regulation of Gene Editing Activity Directed by Single-Stranded Oligonucleotides and CRISPR/Cas9 Systems

    Science.gov (United States)

    Bialk, Pawel; Rivera-Torres, Natalia; Strouse, Bryan; Kmiec, Eric B.

    2015-01-01

    Single-stranded DNA oligonucleotides (ssODNs) can direct the repair of a single base mutation in human genes. While the regulation of this gene editing reaction has been partially elucidated, the low frequency with which repair occurs has hampered development toward clinical application. In this work a CRISPR/Cas9 complex is employed to induce double strand DNA breakage at specific sites surrounding the nucleotide designated for exchange. The result is a significant elevation in ssODN-directed gene repair, validated by a phenotypic readout. By analysing reaction parameters, we have uncovered restrictions on gene editing activity involving CRISPR/Cas9 complexes. First, ssODNs that hybridize to the non-transcribed strand direct a higher level of gene repair than those that hybridize to the transcribed strand. Second, cleavage must be proximal to the targeted mutant base to enable higher levels of gene editing. Third, DNA cleavage enables a higher level of gene editing activity as compared to single-stranded DNA nicks, created by modified Cas9 (Nickases). Fourth, we calculated the hybridization potential and free energy levels of ssODNs that are complementary to the guide RNA sequences of CRISPRs used in this study. We find a correlation between free energy potential and the capacity of single-stranded oligonucleotides to inhibit specific DNA cleavage activity, thereby indirectly reducing gene editing activity. Our data provide novel information that might be taken into consideration in the design and usage of CRISPR/Cas9 systems with ssODNs for gene editing. PMID:26053390

  8. Genome Editing in Cotton with the CRISPR/Cas9 System

    Directory of Open Access Journals (Sweden)

    Wei Gao

    2017-08-01

    Full Text Available Genome editing is an important tool for gene functional studies as well as crop improvement. The recent development of the CRISPR/Cas9 system using single guide RNA molecules (sgRNAs to direct precise double strand breaks in the genome has the potential to revolutionize agriculture. Unfortunately, not all sgRNAs are equally efficient and it is difficult to predict their efficiency by bioinformatics. In crops such as cotton (Gossypium hirsutum L., with labor-intensive and lengthy transformation procedures, it is essential to minimize the risk of using an ineffective sgRNA that could result in the production of transgenic plants without the desired CRISPR-induced mutations. In this study, we have developed a fast and efficient method to validate the functionality of sgRNAs in cotton using a transient expression system. We have used this method to validate target sites for three different genes GhPDS, GhCLA1, and GhEF1 and analyzed the nature of the CRISPR/Cas9-induced mutations. In our experiments, the most frequent type of mutations observed in cotton cotyledons were deletions (∼64%. We prove that the CRISPR/Cas9 system can effectively produce mutations in homeologous cotton genes, an important requisite in this allotetraploid crop. We also show that multiple gene targeting can be achieved in cotton with the simultaneous expression of several sgRNAs and have generated mutations in GhPDS and GhEF1 at two target sites. Additionally, we have used the CRISPR/Cas9 system to produce targeted gene fragment deletions in the GhPDS locus. Finally, we obtained transgenic cotton plants containing CRISPR/Cas9-induced gene editing mutations in the GhCLA1 gene. The mutation efficiency was very high, with 80.6% of the transgenic lines containing mutations in the GhCLA1 target site resulting in an intense albino phenotype due to interference with chloroplast biogenesis.

  9. The CRISPR/Cas9 system produces specific and homozygous targeted gene editing in rice in one generation.

    Science.gov (United States)

    Zhang, Hui; Zhang, Jinshan; Wei, Pengliang; Zhang, Botao; Gou, Feng; Feng, Zhengyan; Mao, Yanfei; Yang, Lan; Zhang, Heng; Xu, Nanfei; Zhu, Jian-Kang

    2014-08-01

    The CRISPR/Cas9 system has been demonstrated to efficiently induce targeted gene editing in a variety of organisms including plants. Recent work showed that CRISPR/Cas9-induced gene mutations in Arabidopsis were mostly somatic mutations in the early generation, although some mutations could be stably inherited in later generations. However, it remains unclear whether this system will work similarly in crops such as rice. In this study, we tested in two rice subspecies 11 target genes for their amenability to CRISPR/Cas9-induced editing and determined the patterns, specificity and heritability of the gene modifications. Analysis of the genotypes and frequency of edited genes in the first generation of transformed plants (T0) showed that the CRISPR/Cas9 system was highly efficient in rice, with target genes edited in nearly half of the transformed embryogenic cells before their first cell division. Homozygotes of edited target genes were readily found in T0 plants. The gene mutations were passed to the next generation (T1) following classic Mendelian law, without any detectable new mutation or reversion. Even with extensive searches including whole genome resequencing, we could not find any evidence of large-scale off-targeting in rice for any of the many targets tested in this study. By specifically sequencing the putative off-target sites of a large number of T0 plants, low-frequency mutations were found in only one off-target site where the sequence had 1-bp difference from the intended target. Overall, the data in this study point to the CRISPR/Cas9 system being a powerful tool in crop genome engineering. © 2014 Society for Experimental Biology, Association of Applied Biologists and John Wiley & Sons Ltd.

  10. Presenting Social Issues with Videotape [and] Teaming Up to Take a Risk.

    Science.gov (United States)

    Agosta, Diana; Jackson, Dick

    1991-01-01

    Two articles discuss the use of media in schools. One describes the use of videotapes to present social issues; the second describes the use of an integrated learning system with ninth and tenth grade at-risk students to improve their rate of attendance, academic achievement, and self-esteem. (LRW)

  11. All about Bugs. Animal Life for Children. [Videotape].

    Science.gov (United States)

    2000

    Bugs fascinate children, and each kind of bug plays a special role in the circle of life. Some bugs pollinate plants, while others help to decompose plant and animal waste. In this videotape, students learn about the similar characteristics that all bugs share and compare them to their close cousins, the arachnids. This videotape correlates to the…

  12. Critical Time: Earthquake Response Planning and Schools. [Videotape].

    Science.gov (United States)

    Federal Emergency Management Agency, Washington, DC.

    A videotape that describes what earthquakes are, and examines the disaster planning schools can develop during the first few minutes following an earthquake to assure students and staff survive. The kinds of destruction likely to happen during a damaging earthquake are highlighted. The videotape stresses the need for children and staff to know…

  13. All about Birds. Animal Life for Children. [Videotape].

    Science.gov (United States)

    2000

    Winged, feathered friends helped to inspire the airplane and have always interested human bird watchers. In this videotape, children learn about the main characteristics of birds and look at their similar needs. Students find out about the process of egg laying and hatching in some of the most common birds. This videotape correlates to the…

  14. All about Mammals. Animal Life for Children. [Videotape].

    Science.gov (United States)

    2000

    In this videotape, students learn more about the characteristics of common warm-blooded mammals and what makes them different from other animals. Children also find out how humans are more advanced in structure than other mammals, but how they still share the same basic traits. This videotape correlates to the following National Science Education…

  15. Streptococcus thermophilus CRISPR-Cas9 Systems Enable Specific Editing of the Human Genome.

    Science.gov (United States)

    Müller, Maximilian; Lee, Ciaran M; Gasiunas, Giedrius; Davis, Timothy H; Cradick, Thomas J; Siksnys, Virginijus; Bao, Gang; Cathomen, Toni; Mussolino, Claudio

    2016-03-01

    RNA-guided nucleases (RGNs) based on the type II CRISPR-Cas9 system of Streptococcus pyogenes (Sp) have been widely used for genome editing in experimental models. However, the nontrivial level of off-target activity reported in several human cells may hamper clinical translation. RGN specificity depends on both the guide RNA (gRNA) and the protospacer adjacent motif (PAM) recognized by the Cas9 protein. We hypothesized that more stringent PAM requirements reduce the occurrence of off-target mutagenesis. To test this postulation, we generated RGNs based on two Streptococcus thermophilus (St) Cas9 proteins, which recognize longer PAMs, and performed a side-by-side comparison of the three RGN systems targeted to matching sites in two endogenous human loci, PRKDC and CARD11. Our results demonstrate that in samples with comparable on-target cleavage activities, significantly lower off-target mutagenesis was detected using St-based RGNs as compared to the standard Sp-RGNs. Moreover, similarly to SpCas9, the StCas9 proteins accepted truncated gRNAs, suggesting that the specificities of St-based RGNs can be further improved. In conclusion, our results show that Cas9 proteins with longer or more restrictive PAM requirements provide a safe alternative to SpCas9-based RGNs and hence a valuable option for future human gene therapy applications.

  16. Scarless Cas9 Assisted Recombineering (no-SCAR) in Escherichia coli, an Easy-to-Use System for Genome Editing.

    Science.gov (United States)

    Reisch, Christopher R; Prather, Kristala L J

    2017-01-05

    The discovery and development of genome editing systems that leverage the site-specific DNA endonuclease system CRISPR/Cas9 has fundamentally changed the ease and speed of genome editing in many organisms. In eukaryotes, the CRISPR/Cas9 system utilizes a "guide" RNA to enable the Cas9 nuclease to make a double-strand break at a particular genome locus, which is repaired by non-homologous end joining (NHEJ) repair enzymes, often generating random mutations in the process. A specific alteration of the target genome can also be generated by supplying a DNA template in vivo with a desired mutation, which is incorporated by homology-directed repair. However, E. coli lacks robust systems for double-strand break repair. Thus, in contrast to eukaryotes, targeting E. coli chromosomal DNA with Cas9 causes cell death. However, Cas9-mediated killing of bacteria can be exploited to select against cells with a specified genotype within a mixed population. In combination with the well described λ-Red system for recombination in E. coli, we created a highly efficient system for marker-free and scarless genome editing. © 2017 by John Wiley & Sons, Inc. Copyright © 2017 John Wiley & Sons, Inc.

  17. Efficient Genome Editing in Chicken DF-1 Cells Using the CRISPR/Cas9 System

    Directory of Open Access Journals (Sweden)

    Yichun Bai

    2016-04-01

    Full Text Available In recent years, genome engineering technology has provided unprecedented opportunities for site-specific modification of biological genomes. Clustered regularly interspaced short palindromic repeats (CRISPR/CRISPR-associated (Cas 9 is one such means that can target a specific genome locus. It has been applied in human cells and many other organisms. Meanwhile, to efficiently enrich targeted cells, several surrogate systems have also been developed. However, very limited information exists on the application of CRISPR/Cas9 in chickens. In this study, we employed the CRISPR/Cas9 system to induce mutations in the peroxisome proliferator-activated receptor-γ (PPAR-γ, ATP synthase epsilon subunit (ATP5E, and ovalbumin (OVA genes in chicken DF-1 cells. The results of T7E1 assays showed that the mutation rate at the three different loci was 0.75%, 0.5%, and 3.0%, respectively. In order to improve the mutation efficiency, we used the PuroR gene for efficient enrichment of genetically modified cells with the surrogate reporter system. The mutation rate, as assessed via the T7E1 assay, increased to 60.7%, 61.3%, and 47.3%, and subsequent sequence analysis showed that the mutation efficiency increased to 94.7%, 95%, and 95%, respectively. In addition, there were no detectable off-target mutations in three potential off-target sites using the T7E1 assay. As noted above, the CRISPR/Cas9 system is a robust tool for chicken genome editing.

  18. RNA-dependent DNA endonuclease Cas9 of the CRISPR system: Holy Grail of genome editing?

    Science.gov (United States)

    Gasiunas, Giedrius; Siksnys, Virginijus

    2013-11-01

    Tailor-made nucleases for precise genome modification, such as zinc finger or TALE nucleases, currently represent the state-of-the-art for genome editing. These nucleases combine a programmable protein module which guides the enzyme to the target site with a nuclease domain which cuts DNA at the addressed site. Reprogramming of these nucleases to cut genomes at specific locations requires major protein engineering efforts. RNA-guided DNA endonuclease Cas9 of the type II (clustered regularly interspaced short palindromic repeat) CRISPR-Cas system uses CRISPR RNA (crRNA) as a guide to locate the DNA target and the Cas9 protein to cut DNA. Easy programmability of the Cas9 endonuclease using customizable RNAs brings unprecedented flexibility and versatility for targeted genome modification. We highlight the potential of the Cas9 RNA-guided DNA endonuclease as a novel tool for genome surgery, and discuss possible constraints and future prospects. Copyright © 2013 Elsevier Ltd. All rights reserved.

  19. Exploiting off-targeting in guide-RNAs for CRISPR systems for simultaneous editing of multiple genes.

    Science.gov (United States)

    Ferreira, Raphael; Gatto, Francesco; Nielsen, Jens

    2017-10-01

    Bioinformatics tools to design guide-RNAs (gRNAs) in Clustered Regularly Interspaced Short Palindromic Repeats systems mostly focused on minimizing off-targeting to enhance efficacy of genome editing. However, there are circumstances in which off-targeting might be desirable to target multiple genes simultaneously with a single gRNA. We termed these gRNAs as promiscuous gRNAs. Here, we present a computational workflow to identify promiscuous gRNAs that putatively bind to the region of interest for a defined list of genes in a genome. We experimentally validated two promiscuous gRNA for gene deletion, one targeting FAA1 and FAA4 and one targeting PLB1 and PLB2, thus demonstrating that multiplexed genome editing through design of promiscuous gRNA can be performed in a time and cost-effective manner. © 2017 Federation of European Biochemical Societies.

  20. A Novel Prokaryotic Green Fluorescent Protein Expression System for Testing Gene Editing Tools Activity Like Zinc Finger Nuclease

    Directory of Open Access Journals (Sweden)

    Faezeh Sabzehei

    2017-01-01

    Full Text Available Background: Gene editing technology has created a revolution in the field of genome editing. The three of the most famous tools in gene editing technology are zinc finger nucleases (ZFNs, transcription activator-like effector nucleases, clustered regularly interspaced short palindromic repeats (CRISPR, and CRISPR-associated systems. As their predictable nature, it is necessary to assess their efficiency. There are some methods for this purpose, but most of them are time labor and complicated. Here, we introduce a new prokaryotic reporter system, which makes it possible to evaluate the efficiency of gene editing tools faster, cheaper, and simpler than previous methods. Materials and Methods: At first, the target sites of a custom ZFN, which is designed against a segment of ampicillin resistance gene, were cloned on both sides of green fluorescent protein (GFP gene to construct pPRO-GFP. Then pPRO-GFP was transformed into Escherichia coli TOP10F' that contains pZFN (contains expression cassette of a ZFN against ampicillin resistant gene, or p15A-KanaR as a negative control. The transformed bacteria were cultured on three separate media that contained ampicillin, kanamycin, and ampicillin + kanamycin; then the resulted colonies were assessed by flow cytometry. Results: The results of flow cytometry showed a significant difference between the case (bacteria contain pZFN and control (bacteria contain p15A, KanaR in MFI (Mean Fluorescence Intensity (P < 0.0001. Conclusion: According to ZFN efficiency, it can bind and cut the target sites, the bilateral cutting can affect the intensity of GFP fluorescence. Our flow cytometry results showed that this ZFN could reduce the intensity of GFP color and colony count of bacteria in media containing amp + kana versus control sample.

  1. A Novel Prokaryotic Green Fluorescent Protein Expression System for Testing Gene Editing Tools Activity Like Zinc Finger Nuclease.

    Science.gov (United States)

    Sabzehei, Faezeh; Kouhpayeh, Shirin; Dastjerdeh, Mansoureh Shahbazi; Khanahmad, Hossein; Salehi, Rasoul; Naderi, Shamsi; Taghizadeh, Razieh; Rabiei, Parisa; Hejazi, Zahra; Shariati, Laleh

    2017-01-01

    Gene editing technology has created a revolution in the field of genome editing. The three of the most famous tools in gene editing technology are zinc finger nucleases (ZFNs), transcription activator-like effector nucleases, clustered regularly interspaced short palindromic repeats (CRISPR), and CRISPR-associated systems. As their predictable nature, it is necessary to assess their efficiency. There are some methods for this purpose, but most of them are time labor and complicated. Here, we introduce a new prokaryotic reporter system, which makes it possible to evaluate the efficiency of gene editing tools faster, cheaper, and simpler than previous methods. At first, the target sites of a custom ZFN, which is designed against a segment of ampicillin resistance gene, were cloned on both sides of green fluorescent protein (GFP) gene to construct pPRO-GFP. Then pPRO-GFP was transformed into Escherichia coli TOP10F' that contains pZFN (contains expression cassette of a ZFN against ampicillin resistant gene), or p15A-KanaR as a negative control. The transformed bacteria were cultured on three separate media that contained ampicillin, kanamycin, and ampicillin + kanamycin; then the resulted colonies were assessed by flow cytometry. The results of flow cytometry showed a significant difference between the case (bacteria contain pZFN) and control (bacteria contain p15A, KanaR) in MFI (Mean Fluorescence Intensity) (P < 0.0001). According to ZFN efficiency, it can bind and cut the target sites, the bilateral cutting can affect the intensity of GFP fluorescence. Our flow cytometry results showed that this ZFN could reduce the intensity of GFP color and colony count of bacteria in media containing amp + kana versus control sample.

  2. Usefulness of Videotape Instruction in an Academic Department of Neurology.

    Science.gov (United States)

    Kaufman, David M.; Kaufman, Rita G.

    1983-01-01

    Videotape instruction produced better performance in identification in only certain areas in a neurology clerkship: neuropsychologic phenomena, disorders with subtle or unique movements, and seizures. The choice and cost of equipment and some professional assurances are discussed. (Author/MLW)

  3. DEAH-RHA helicase•Znf cofactor systems in kinetoplastid RNA editing and evolutionarily distant RNA processes.

    Science.gov (United States)

    Cruz-Reyes, Jorge; Mooers, Blaine H M; Abu-Adas, Zakaria; Kumar, Vikas; Gulati, Shelly

    Multi-zinc finger proteins are an emerging class of cofactors in DEAH-RHA RNA helicases across highly divergent eukaryotic lineages. DEAH-RHA helicase•zinc finger cofactor partnerships predate the split of kinetoplastid protozoa, which include several human pathogens, from other eukaryotic lineages 100-400 Ma. Despite a long evolutionary history, the prototypical DEAH-RHA domains remain highly conserved. This short review focuses on a recently identified DEAH-RHA helicase•zinc finger cofactor system in kinetoplastid RNA editing, and its potential functional parallels with analogous systems in embryogenesis control in nematodes and antivirus protection in humans.

  4. Gene Editing and Crop Improvement Using CRISPR-Cas9 System

    OpenAIRE

    Arora, Leena; Narula, Alka

    2017-01-01

    Advancements in Genome editing technologies have revolutionized the fields of functional genomics and crop improvement. CRISPR/Cas9 (clustered regularly interspaced short palindromic repeat)-Cas9 is a multipurpose technology for genetic engineering that relies on the complementarity of the guideRNA (gRNA) to a specific sequence and the Cas9 endonuclease activity. It has broadened the agricultural research area, bringing in new opportunities to develop novel plant varieties with deletion of de...

  5. Cluster editing

    DEFF Research Database (Denmark)

    Böcker, S.; Baumbach, Jan

    2013-01-01

    The Cluster Editing problem asks to transform a graph into a disjoint union of cliques using a minimum number of edge modifications. Although the problem has been proven NP-complete several times, it has nevertheless attracted much research both from the theoretical and the applied side. The prob......The Cluster Editing problem asks to transform a graph into a disjoint union of cliques using a minimum number of edge modifications. Although the problem has been proven NP-complete several times, it has nevertheless attracted much research both from the theoretical and the applied side....... The problem has been the inspiration for numerous algorithms in bioinformatics, aiming at clustering entities such as genes, proteins, phenotypes, or patients. In this paper, we review exact and heuristic methods that have been proposed for the Cluster Editing problem, and also applications...

  6. Validation of the American Joint Commission on Cancer (AJCC) 8th Edition Staging System for Patients with Pancreatic Adenocarcinoma: A Surveillance, Epidemiology and End Results (SEER) Analysis.

    Science.gov (United States)

    Kamarajah, Sivesh K; Burns, William R; Frankel, Timothy L; Cho, Clifford S; Nathan, Hari

    2017-07-01

    The 8th edition of the AJCC staging system for pancreatic cancer incorporated several significant changes. This study sought to evaluate this staging system and assess its strengths and weaknesses relative to the 7th edition AJCC staging system. Using the Surveillance, Epidemiology and End Results (SEER) database (2004-2013), 8960 patients undergoing surgical resection for non-metastatic pancreatic adenocarcinoma were identified. Overall survival was estimated using the Kaplan-Meier method and compared using log-rank tests. Concordance indices (c-index) were calculated to evaluate the discriminatory power of both staging systems. The Cox proportional hazards model was used to determine the impact of T and N classification on overall survival. The c-index for the AJCC 8th staging system [0.60; 95% confidence interval (CI), 0.59-0.61] was comparable with that for the 7th edition AJCC staging system (0.59; 95% CI, 0.58-0.60). Stratified analyses for each N classification system demonstrated a diminishing impact of T classification on overall survival with increasing nodal involvement. The corresponding c-indices were 0.58 (95% CI, 0.55-0.60) for N0, 0.53 (95% CI, 0.51-0.55) for N1, and 0.53 (95% CI, 0.50-0.56) for N2 classification. This is the first large-scale validation of the AJCC 8th edition staging system for pancreatic cancer. The revised system provides discrimination similar to that of the 7th-edition system. However, the 8th-edition system allows for finer stratification of patients with resected tumors according to extent of nodal involvement.

  7. Genome Editing Tools in Plants.

    Science.gov (United States)

    Mohanta, Tapan Kumar; Bashir, Tufail; Hashem, Abeer; Abd Allah, Elsayed Fathi; Bae, Hanhong

    2017-12-19

    Genome editing tools have the potential to change the genomic architecture of a genome at precise locations, with desired accuracy. These tools have been efficiently used for trait discovery and for the generation of plants with high crop yields and resistance to biotic and abiotic stresses. Due to complex genomic architecture, it is challenging to edit all of the genes/genomes using a particular genome editing tool. Therefore, to overcome this challenging task, several genome editing tools have been developed to facilitate efficient genome editing. Some of the major genome editing tools used to edit plant genomes are: Homologous recombination (HR), zinc finger nucleases (ZFNs), transcription activator-like effector nucleases (TALENs), pentatricopeptide repeat proteins (PPRs), the CRISPR/Cas9 system, RNA interference (RNAi), cisgenesis, and intragenesis. In addition, site-directed sequence editing and oligonucleotide-directed mutagenesis have the potential to edit the genome at the single-nucleotide level. Recently, adenine base editors (ABEs) have been developed to mutate A-T base pairs to G-C base pairs. ABEs use deoxyadeninedeaminase (TadA) with catalytically impaired Cas9 nickase to mutate A-T base pairs to G-C base pairs.

  8. High-efficiency CRISPR/Cas9 multiplex gene editing using the glycine tRNA-processing system-based strategy in maize.

    Science.gov (United States)

    Qi, Weiwei; Zhu, Tong; Tian, Zhongrui; Li, Chaobin; Zhang, Wei; Song, Rentao

    2016-08-11

    CRISPR/Cas9 genome editing strategy has been applied to a variety of species and the tRNA-processing system has been used to compact multiple gRNAs into one synthetic gene for manipulating multiple genes in rice. We optimized and introduced the multiplex gene editing strategy based on the tRNA-processing system into maize. Maize glycine-tRNA was selected to design multiple tRNA-gRNA units for the simultaneous production of numerous gRNAs under the control of one maize U6 promoter. We designed three gRNAs for simplex editing and three multiple tRNA-gRNA units for multiplex editing. The results indicate that this system not only increased the number of targeted sites but also enhanced mutagenesis efficiency in maize. Additionally, we propose an advanced sequence selection of gRNA spacers for relatively more efficient and accurate chromosomal fragment deletion, which is important for complete abolishment of gene function especially long non-coding RNAs (lncRNAs). Our results also indicated that up to four tRNA-gRNA units in one expression cassette design can still work in maize. The examples reported here demonstrate the utility of the tRNA-processing system-based strategy as an efficient multiplex genome editing tool to enhance maize genetic research and breeding.

  9. Incorporating a Video-Editing Activity in a Reflective Teaching Course for Preservice Teachers

    Science.gov (United States)

    Fadde, Peter J.; Aud, Susan; Gilbert, Sharon

    2009-01-01

    Research and practice going back to the 1960s support the use of videotaping to facilitate preservice teachers' development of reflective teaching skills. Emerging research suggests that additional video-based activities, including editing video vignettes of teaching, can deepen preservice teachers' reflection. This action research study describes…

  10. Editing faces in videos

    OpenAIRE

    Amberg, Brian

    2011-01-01

    Editing faces in movies is of interest in the special effects industry. We aim at producing effects such as the addition of accessories interacting correctly with the face or replacing the face of a stuntman with the face of the main actor. The system introduced in this thesis is based on a 3D generative face model. Using a 3D model makes it possible to edit the face in the semantic space of pose, expression, and identity instead of pixel space, and due to its 3D nature allows...

  11. Evaluation of the 8th edition American Joint Commission on Cancer (AJCC) staging system for patients with intrahepatic cholangiocarcinoma: A surveillance, epidemiology, and end results (SEER) analysis.

    Science.gov (United States)

    Kim, Yuhree; Moris, Dimitrios P; Zhang, Xu-Feng; Bagante, Fabio; Spolverato, Gaya; Schmidt, Carl; Dilhoff, Mary; Pawlik, Timothy M

    2017-06-12

    The objective of this study was to assess the prognostic performance of American Joint Committee on Cancer (AJCC) 8th edition in patients with intrahepatic cholangiocarcinoma (ICC) using a cancer registry. The Surveillance, Epidemiology, and End Results (SEER) cancer registry was queried to identify 1008 patients who underwent surgical resection of ICC during 1998-2013. Kaplan-Meier method and Cox proportional hazards regression models were used to analyze long-term survival. The relative discriminative abilities were assessed using the Harrell's concordance index. Median patient age was 62 years and 47.6% of the patients were male. Most tumors were T1 or T2 (n = 413, 41.0% and n = 329, 32.6%, respectively) and 22.1% of patients had lymph node (LN) metastasis. Median tumor size was 5.5 cm. With a median follow-up of 18 months, median survival was 27 months and 5-year OS was 30.6%. The OS c-index for the AJCC 8th staging system was 0.669, which was comparable with the c-index for the 7th edition AJCC staging system (c-index: 0.667); the AJCC 8th-edition did provide more discrete stratification of patients. The new AJCC 8th-edition staging system for ICC was largely comparable to the 7th-edition version and did not provide a marked improvement in overall prognostic discrimination. © 2017 Wiley Periodicals, Inc.

  12. A Robust CRISPR/Cas9 System for Convenient, High-Efficiency Multiplex Genome Editing in Monocot and Dicot Plants.

    Science.gov (United States)

    Ma, Xingliang; Zhang, Qunyu; Zhu, Qinlong; Liu, Wei; Chen, Yan; Qiu, Rong; Wang, Bin; Yang, Zhongfang; Li, Heying; Lin, Yuru; Xie, Yongyao; Shen, Rongxin; Chen, Shuifu; Wang, Zhi; Chen, Yuanling; Guo, Jingxin; Chen, Letian; Zhao, Xiucai; Dong, Zhicheng; Liu, Yao-Guang

    2015-08-01

    CRISPR/Cas9 genome targeting systems have been applied to a variety of species. However, most CRISPR/Cas9 systems reported for plants can only modify one or a few target sites. Here, we report a robust CRISPR/Cas9 vector system, utilizing a plant codon optimized Cas9 gene, for convenient and high-efficiency multiplex genome editing in monocot and dicot plants. We designed PCR-based procedures to rapidly generate multiple sgRNA expression cassettes, which can be assembled into the binary CRISPR/Cas9 vectors in one round of cloning by Golden Gate ligation or Gibson Assembly. With this system, we edited 46 target sites in rice with an average 85.4% rate of mutation, mostly in biallelic and homozygous status. We reasoned that about 16% of the homozygous mutations in rice were generated through the non-homologous end-joining mechanism followed by homologous recombination-based repair. We also obtained uniform biallelic, heterozygous, homozygous, and chimeric mutations in Arabidopsis T1 plants. The targeted mutations in both rice and Arabidopsis were heritable. We provide examples of loss-of-function gene mutations in T0 rice and T1 Arabidopsis plants by simultaneous targeting of multiple (up to eight) members of a gene family, multiple genes in a biosynthetic pathway, or multiple sites in a single gene. This system has provided a versatile toolbox for studying functions of multiple genes and gene families in plants for basic research and genetic improvement. Copyright © 2015 The Author. Published by Elsevier Inc. All rights reserved.

  13. Breaststroke learning through the use of videotape feedback

    Directory of Open Access Journals (Sweden)

    Marcela de Castro Ferracioli

    2013-03-01

    Full Text Available DOI: http://dx.doi.org/10.5007/1980-0037.2013v15n2p204 People from all age groups and social backgrounds have always sought to learn swimming. However, the swimming learning process is usually considered repetitive and tiring, requiring the teacher to use methods that motivate students to join the practice without ignoring the need for improvement in their performance. This study assessed motivation during a breaststroke learning process in students who received videotape feedback, verbal feedback, and who did not receive any feedback during practice. Thirty seven swimming inexperienced students were divided into three groups: Video (n=13, which received videotape feedback; Verbal (n=15, which received verbal feedback; and Control (n=9, which did not receive any feedback during experimental phases (pre-test, acquisition (5 days, post-test and retention. Participants completed a questionnaire based on Likert scale for motivation assessment. Scores were given to their performance by a swimming teacher to assess breaststroke learning during each experimental phase. Results of motivation assessment showed that students who received feedback (videotape or verbal felt more motivated during practice than those who did not receive any feedback. Regarding the breaststroke learning, all participants improved their performance along experimental phases, but, during the retention one, Verbal group’s performance was considered superior to the Control group’s performance. This study concluded that the use of videotape and verbal feedback has motivational results on breaststroke learning, and that it is effective in the learning process.

  14. Space Science for Children: All about Stars [Videotape].

    Science.gov (United States)

    1999

    This 23-minute videotape features information, for children in grades K-4, about stars including their composition, brightness, and location. How stars are formed, why they seem to move across our sky, and how humans have used their patterns to form the constellations are discussed. A hands-on activity related to the reflecting telescope is also…

  15. All about Amphibians. Animal Life for Children. [Videotape].

    Science.gov (United States)

    2000

    This videotape teaches children about their favorite amphibious creatures, as well as amphibians' nearest cousins--toads, newts, and salamanders. Young students discover how these amazing creatures can live both in and out of water, learn about the amphibious life cycle, and compare the differences between amphibians and reptiles. This videotape…

  16. Me & Isaac Newton. [Videotape and] KIDSNET Guide for Educators.

    Science.gov (United States)

    2001

    This videotape records the stories of 7 scientists, 3 women and 4 men who range in age from 33 to 81. Beginning with their earliest scientific questions and including their most personal ponderings, the scientists reveal their histories and professional obligations to affect the world. Director Michael Apted allows the personal adventures of the…

  17. Use of Videotape Feedback with Severely Disturbed Adolescents.

    Science.gov (United States)

    Michel, Jane; Blitstein, Sheldon

    1979-01-01

    Summarizes the design and effects of a group therapy project using videotape feedback with seriously disturbed adolescents. Offers anecdotal evidence that the feedback facilitated the correction of the participants' distorted body images, low self-esteem, lack of capacity for self-observation, and poor peer relationships. (SS)

  18. All about Dinosaurs. Animal Life for Children. [Videotape].

    Science.gov (United States)

    2000

    Dinosaurs were the rulers of the land 65 million years ago. In this videotape, children learn more about the different kinds of dinosaurs by viewing vivid illustrations and fossil discoveries. Students compare the dinosaurs to their modern kin--snakes, lizards, and crocodiles. Students also listen to different theories to try to answer the big…

  19. All about Reptiles. Animal Life for Children. [Videotape].

    Science.gov (United States)

    2000

    Dinosaurs may be extinct, but reptiles are distant cousins to the beasts that once walked the earth. From snakes and lizards to iguanas and tuataras, children learn what factors make them different from other animals. In this videotape, students explore the mysterious, often misunderstood, world of reptiles and learn about their characteristics…

  20. All about Animal Behavior & Communication. Animal Life for Children. [Videotape].

    Science.gov (United States)

    2000

    Why do animals do what they do? What is the difference between instinct and learned behavior? How do animals communicate? These questions are answered as children examine animal behaviors that help them find food, protect themselves, and care for their young. This videotape correlates to the following National Science Education Standards for Life…

  1. All about Food Chains. Animal Life for Children. [Videotape].

    Science.gov (United States)

    2000

    Whether animals are herbivores, carnivores, or omnivores, each one is part of an eternal food chain that carries on from one generation to the next. In this videotape, students learn more about terms like "predator,""pre-consumer" and "producer," as well as the cycles of food chains and food webs and how they support…

  2. The Development of a Viral Mediated CRISPR/Cas9 System with Doxycycline Dependent gRNA Expression for Inducible In vitro and In vivo Genome Editing.

    Science.gov (United States)

    de Solis, Christopher A; Ho, Anthony; Holehonnur, Roopashri; Ploski, Jonathan E

    2016-01-01

    The RNA-guided Cas9 nuclease, from the type II prokaryotic Clustered Regularly Interspersed Short Palindromic Repeats (CRISPR) adaptive immune system, has been adapted and utilized by scientists to edit the genomes of eukaryotic cells. Here, we report the development of a viral mediated CRISPR/Cas9 system that can be rendered inducible utilizing doxycycline (Dox) and can be delivered to cells in vitro and in vivo utilizing adeno-associated virus (AAV). Specifically, we developed an inducible gRNA (gRNAi) AAV vector that is designed to express the gRNA from a H1/TO promoter. This AAV vector is also designed to express the Tet repressor (TetR) to regulate the expression of the gRNAi in a Dox dependent manner. We show that H1/TO promoters of varying length and a U6/TO promoter can edit DNA with similar efficiency in vitro, in a Dox dependent manner. We also demonstrate that our inducible gRNAi vector can be used to edit the genomes of neurons in vivo within the mouse brain in a Dox dependent manner. Genome editing can be induced in vivo with this system by supplying animals Dox containing food for as little as 1 day. This system might be cross compatible with many existing S. pyogenes Cas9 systems (i.e., Cas9 mouse, CRISPRi, etc.), and therefore it likely can be used to render these systems inducible as well.

  3. The development of a viral mediated CRISPR/Cas9 system with doxycycline dependent gRNA expression for inducible in vitro and in vivo genome editing.

    Directory of Open Access Journals (Sweden)

    Christopher A. de Solis

    2016-08-01

    Full Text Available The RNA-guided Cas9 nuclease, from the type II prokaryotic Clustered Regularly Interspersed Short Palindromic Repeats (CRISPR adaptive immune system, has been adapted and utilized by scientists to edit the genomes of eukaryotic cells. Here, we report the development of a viral mediated CRISPR/Cas9 system that can be rendered inducible utilizing doxycycline (Dox and can be delivered to cells in vitro and in vivo utilizing adeno-associated virus (AAV. Specifically, we developed an inducible gRNA (gRNAi AAV vector that is designed to express the gRNA from a H1/TO promoter. This AAV vector is also designed to express the Tet repressor (TetR to regulate the expression of the gRNAi in a Dox dependent manner. We show that H1/TO promoters of varying length and a U6/TO promoter can edit DNA with similar efficiency in vitro, in a Dox dependent manner. We also demonstrate that our inducible gRNAi vector can be used to edit the genomes of neurons in vivo within the mouse brain in a Dox dependent manner. Genome editing can be induced in vivo with this system by supplying animals Dox containing food for as little as one day. This system might be cross compatible with many existing S. pyogenes Cas9 systems (i.e. Cas9 mouse, CRISPRi, etc., and therefore it likely can be used to render these systems inducible as well.

  4. Teaching diagnostic reasoning: using a classroom-as-clinic methodology with videotapes.

    Science.gov (United States)

    Neistadt, M E; Smith, R E

    1997-05-01

    The purpose of this study was to examine the effect of a "classroom-as-clinic" format, using videotaped occupational therapy evaluations, on students' diagnostic reasoning skills. In the classroom-as-clinic format, students write a problem list on the basis of preliminary client information before viewing the videotape. A post-hoc experimental design was used to compare the accuracy of treatment plan problem lists for two groups of senior occupational therapy students--one group viewed two videotapes of client-therapist interactions without a classroom-as-clinic format (n = 82), and one group viewed the same videotapes within the context of a classroom-as-clinic format (n = 45). Both groups viewed the same two videotapes. Videotape 1 was of a client with a brain stem infarct, and Videotape 2 was of a client with traumatic brain injury. Subjects experiencing a classroom-as-clinic format identified significantly more occupational therapy problems for Videotape 1 than those who did not have preevaluation information. There was no significant difference between the two subject groups in the accuracy of their problem lists for Videotape 2. Only subjects in the non-classroom-as-clinic group showed a significant improvement from Videotape 1 to Videotape 2 in occupational therapy problem identification. This study suggests that to be truly effective when used videotapes, the classroom-as-clinic methodology needs to be combined with explicit coaching in problem sensing and problem definition.

  5. The big bang of genome editing technology: development and application of the CRISPR/Cas9 system in disease animal models

    OpenAIRE

    Shao, Ming; Xu, Tian-Rui; Chen, Ce-Shi

    2016-01-01

    Targeted genome editing technology has been widely used in biomedical studies. The CRISPR-associated RNA-guided endonuclease Cas9 has become a versatile genome editing tool. The CRISPR/Cas9 system is useful for studying gene function through efficient knock-out, knock-in or chromatin modification of the targeted gene loci in various cell types and organisms. It can be applied in a number of fields, such as genetic breeding, disease treatment and gene functional investigation. In this review, ...

  6. Evaluation of the DIBELS (Sixth Edition) Diagnostic System for the Selection of Native and Proficient English Speakers at Risk of Reading Difficulties

    Science.gov (United States)

    Smolkowski, Keith; Cummings, Kelli D.

    2016-01-01

    This comprehensive evaluation of the Dynamic Indicators of Basic Early Literacy Skills Sixth Edition (DIBELS6) set of measures gives a practical illustration of signal detection methods, the methods used to determine the value of screening and diagnostic systems, and offers an updated set of cut scores (decision thresholds). Data were drawn from a…

  7. High-efficiency CRISPR/Cas9 multiplex gene editing using the glycine tRNA-processing system-based strategy in maize

    National Research Council Canada - National Science Library

    Qi, Weiwei; Zhu, Tong; Tian, Zhongrui; Li, Chaobin; Zhang, Wei; Song, Rentao

    2016-01-01

    CRISPR/Cas9 genome editing strategy has been applied to a variety of species and the tRNA-processing system has been used to compact multiple gRNAs into one synthetic gene for manipulating multiple genes in rice...

  8. Statistical Physics Approaches to RNA Editing

    Science.gov (United States)

    Bundschuh, Ralf

    2012-02-01

    The central dogma of molecular Biology states that DNA is transcribed base by base into RNA which is in turn translated into proteins. However, some organisms edit their RNA before translation by inserting, deleting, or substituting individual or short stretches of bases. In many instances the mechanisms by which an organism recognizes the positions at which to edit or by which it performs the actual editing are unknown. One model system that stands out by its very high rate of on average one out of 25 bases being edited are the Myxomycetes, a class of slime molds. In this talk we will show how the computational methods and concepts from statistical Physics can be used to analyze DNA and protein sequence data to predict editing sites in these slime molds and to guide experiments that identified previously unknown types of editing as well as the complete set of editing events in the slime mold Physarum polycephalum.

  9. Progress and prospects in plant genome editing.

    Science.gov (United States)

    Yin, Kangquan; Gao, Caixia; Qiu, Jin-Long

    2017-07-31

    The emergence of sequence-specific nucleases that enable genome editing is revolutionizing basic and applied biology. Since the introduction of CRISPR-Cas9, genome editing has become widely used in transformable plants for characterizing gene function and improving traits, mainly by inducing mutations through non-homologous end joining of double-stranded breaks generated by CRISPR-Cas9. However, it would be highly desirable to perform precision gene editing in plants, especially in transformation-recalcitrant species. Recently developed Cas9 variants, novel RNA-guided nucleases and base-editing systems, and DNA-free CRISPR-Cas9 delivery methods now provide great opportunities for plant genome engineering. In this Review Article, we describe the current status of plant genome editing, focusing on newly developed genome editing tools and methods and their potential applications in plants. We also discuss the specific challenges facing plant genome editing, and future prospects.

  10. Improving Steam System Performance: A Sourcebook for Industry, Second Edition (Book) (Revised)

    Energy Technology Data Exchange (ETDEWEB)

    2012-10-01

    Improving Steam System Performance: A Sourcebook for Industry was developed for the U.S. Department of Energy's (DOE) Advanced Manufacturing Office (AMO), formerly the Industrial Technologies Program. AMO undertook this project as a series of sourcebook publications. Other topics in this series include: compressed air systems, pumping systems, fan systems, process heating and motor and drive systems. For more information about program resources, see AMO in the Where to Find Help section of this publication.

  11. Photovoltaic System Pricing Trends: Historical, Recent, and Near-Term Projections 2013 Edition (Presentation)

    Energy Technology Data Exchange (ETDEWEB)

    Feldman, D.; Margolis, R.; James, T.; Goodrich, A.; Barbose, G.; Dargouth, N.; Weaver, S.; Wiser, R.

    2013-09-01

    This briefing provides a high-level overview of historical, recent, and projected near-term PV system pricing trends in the United States, drawing on several ongoing research activities from the Lawrence Berkeley National Laboratory and the National Renewable Energy Laboratory. It also discusses the different methodologies and factors that impact the estimated price of a PV system, such as system size, location, technology, and reporting methods. These factors, including timing, can have a significant impact on system pricing.

  12. 36 CFR 1280.50 - What will I be allowed to film, photograph, or videotape for news purposes?

    Science.gov (United States)

    2010-07-01

    ... film, photograph, or videotape for news purposes? 1280.50 Section 1280.50 Parks, Forests, and Public... film, photograph, or videotape for news purposes? (a) NARA will permit you to film, photograph, or..., photograph, or videotape if you intend to use the film, photographs, or videotape for commercial, partisan...

  13. Videotaped recording as a method of participant observation in psychiatric nursing research.

    Science.gov (United States)

    Latvala, E; Vuokila-Oikkonen, P; Janhonen, S

    2000-05-01

    This paper describes videotaped recording as a data collection method when conducting participant observation in a psychiatric nursing study. The videotaped episodes were part of the daily life of psychiatric nursing in a hospital environment. The advantages and limitations of using videotaped recording in nursing research will be discussed. This paper is based on two studies. The data consisted of 21 videotaped episodes of nursing report sessions or interdisciplinary team meetings in the psychiatric clinic of a university hospital. The participants consisted of patients, their significant others, nurses, doctors, social workers and physiotherapists. All videotaped material was transcribed verbatim. An essential advantage of videotaping is that most potentially useful interaction and behaviour can be captured. The advantage in terms of the credibility of videotaping was that the investigator was able to review the same videotaped situations again and again. Videotaped material is rich and provides several possibilities for analysing the data. In these studies data and source triangulation enabled the researchers to reduce personal influence on the results. The investigator must also be aware of the limitations concerning this method. The most essential limitations are mechanical problems and the influence of videotaping on behaviour. Careful ethical considerations are important concerning personal privacy, informed consent and respect for the self-determination of psychiatric patients.

  14. A System with Intelligent Editing for Extracting Ridge and Ravine Terrain Features

    National Research Council Canada - National Science Library

    Schmidt, Greg; Swan, J. E., II; Rosenblum, Lawrence; Tomlin, Erik B; Overby, Derek

    2005-01-01

    We describe a system for extracting ridges and ravines from elevation data. The application context is a map-based military planning tool, which allows users to select ridges and ravines by simple mouse clicks...

  15. Best Practices in Photovoltaic System Operations and Maintenance: 2nd Edition

    Energy Technology Data Exchange (ETDEWEB)

    Whaley, Cass [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2016-12-01

    This best practices guide encourages high-quality system deployment and operation that improves lifetime project performance and energy production while reducing, or at least optimizing, costs to deliver an operation and maintenance program.

  16. The big bang of genome editing technology: development and application of the CRISPR/Cas9 system in disease animal models.

    Science.gov (United States)

    Shao, Ming; Xu, Tian-Rui; Chen, Ce-Shi

    2016-07-18

    Targeted genome editing technology has been widely used in biomedical studies. The CRISPR-associated RNA-guided endonuclease Cas9 has become a versatile genome editing tool. The CRISPR/Cas9 system is useful for studying gene function through efficient knock-out, knock-in or chromatin modification of the targeted gene loci in various cell types and organisms. It can be applied in a number of fields, such as genetic breeding, disease treatment and gene functional investigation. In this review, we introduce the most recent developments and applications, the challenges, and future directions of Cas9 in generating disease animal model. Derived from the CRISPR adaptive immune system of bacteria, the development trend of Cas9 will inevitably fuel the vital applications from basic research to biotechnology and bio-medicine.

  17. The big bang of genome editing technology: development and application of the CRISPR/Cas9 system in disease animal models

    Science.gov (United States)

    SHAO, Ming; XU, Tian-Rui; CHEN, Ce-Shi

    2016-01-01

    Targeted genome editing technology has been widely used in biomedical studies. The CRISPR-associated RNA-guided endonuclease Cas9 has become a versatile genome editing tool. The CRISPR/Cas9 system is useful for studying gene function through efficient knock-out, knock-in or chromatin modification of the targeted gene loci in various cell types and organisms. It can be applied in a number of fields, such as genetic breeding, disease treatment and gene functional investigation. In this review, we introduce the most recent developments and applications, the challenges, and future directions of Cas9 in generating disease animal model. Derived from the CRISPR adaptive immune system of bacteria, the development trend of Cas9 will inevitably fuel the vital applications from basic research to biotechnology and biomedicine. PMID:27469250

  18. Worms Eat My Garbage. How To Set Up and Maintain a Worm Composting System. First Edition.

    Science.gov (United States)

    Appelhof, Mary

    This book is a resource for parents and teachers who want to teach about recycling and composting by setting up and maintaining a worm composting system. It is designed to be a detailed yet simple manual of vermicomposting. The manual covers the basics of vermicomposting and answers such questions as where to store a composting container, what…

  19. Solar heating and cooling of residential buildings: sizing, installation and operation of systems. 1980 edition

    Energy Technology Data Exchange (ETDEWEB)

    None

    1980-09-01

    This manual was prepared as a text for a training course on solar heating and cooling of residential buildings. The course and text are directed toward sizing, installation, operation, and maintenance of solar systems for space heating and hot water supply, and solar cooling is treated only briefly. (MHR)

  20. Solar Energy: System Sizing, Design, and Retrofit: Student Material. First Edition.

    Science.gov (United States)

    Younger, Charles; Orsak, Charles G., Jr.

    Designed for student use in "System Sizing, Design, and Retrofit," one of 11 courses in a 2-year associate degree program in solar technology, this manual provides readings, exercises, worksheets, bibliographies, and illustrations for 13 course modules. The manual, which corresponds to an instructor guide for the same course, covers the…

  1. Basic Wiring. Third Edition. Teacher Edition [and] Student Edition.

    Science.gov (United States)

    Kaltwasser, Stan; Flowers, Gary; Blasingame, Don; Batson, Larry; Ipock, Dan; Carroll, Charles; Friesen, Wade; Fleming, Glenn

    This publication contains both a teacher edition and a student edition of materials for a foundation course in an electrical wiring program. The course introduces basic concepts and skills that are prerequisites to residential wiring and commercial and industrial wiring courses. The contents of the materials are tied to measurable and observable…

  2. Diesel Technology: Introduction. Teacher Edition [and] Student Edition. Second Edition.

    Science.gov (United States)

    Joerschke, John D.; Eichhorn, Lane

    This complete teacher edition of a diesel technology course consists of introductory pages, teacher pages, and the student edition. The introductory pages provide these tools: training and competency profile; National Automotive Technicians Education Foundation Crosswalk; instructional/task analysis; basic skills icons and classifications; basic…

  3. Operational Transformation In Co-Operative Editing

    Directory of Open Access Journals (Sweden)

    Mandeep Kaur

    2015-08-01

    Full Text Available Cooperative Editing Systems in real-time allows a virtual team to view and edit a shared document at the same time. The document shared must be synchronized in order to ensure consistency for all the participants. This paper describes the Operational Transformation the evolution of its techniques its various applications major issues and achievements. In addition this paper will present working of a platform where two users can edit a code programming file at the same time.

  4. Quantification of video-taped images in microcirculation research using inexpensive imaging software (Adobe Photoshop).

    Science.gov (United States)

    Brunner, J; Krummenauer, F; Lehr, H A

    2000-04-01

    Study end-points in microcirculation research are usually video-taped images rather than numeric computer print-outs. Analysis of these video-taped images for the quantification of microcirculatory parameters usually requires computer-based image analysis systems. Most software programs for image analysis are custom-made, expensive, and limited in their applicability to selected parameters and study end-points. We demonstrate herein that an inexpensive, commercially available computer software (Adobe Photoshop), run on a Macintosh G3 computer with inbuilt graphic capture board provides versatile, easy to use tools for the quantification of digitized video images. Using images obtained by intravital fluorescence microscopy from the pre- and postischemic muscle microcirculation in the skinfold chamber model in hamsters, Photoshop allows simple and rapid quantification (i) of microvessel diameters, (ii) of the functional capillary density and (iii) of postischemic leakage of FITC-labeled high molecular weight dextran from postcapillary venules. We present evidence of the technical accuracy of the software tools and of a high degree of interobserver reliability. Inexpensive commercially available imaging programs (i.e., Adobe Photoshop) provide versatile tools for image analysis with a wide range of potential applications in microcirculation research.

  5. Boneless Pose Editing and Animation

    DEFF Research Database (Denmark)

    Bærentzen, Jakob Andreas; Hansen, Kristian Evers; Erleben, Kenny

    2007-01-01

    In this paper, we propose a pose editing and animation method for triangulated surfaces based on a user controlled partitioning of the model into deformable parts and rigid parts which are denoted handles. In our pose editing system, the user can sculpt a set of poses simply by transforming...... problem in order to obtain the interpolation weights. While the system can be used simply for building poses, it is also an animation system. The user can specify a path for a given constraint and the model is animated correspondingly....

  6. Abbreviations, acronyms, and initialisms frequently used by Martin Marietta Energy Systems, Inc.. Second edition

    Energy Technology Data Exchange (ETDEWEB)

    Miller, J.T.

    1994-09-01

    Guidelines are given for using abbreviations, acronyms, and initialisms (AAIs) in documents prepared by US Department of Energy facilities managed by Martin Marietta Energy Systems, Inc., in Oak Ridge, Tennessee. The more than 10,000 AAIs listed represent only a small portion of those found in recent documents prepared by contributing editors of the Information Management Services organization of Oak Ridge National Laboratory, the Oak Ridge K-25 Site, and the Oak Ridge Y-12 Plant. This document expands on AAIs listed in the Document Preparation Guide and is intended as a companion document

  7. Wikipedia editing dynamics

    Science.gov (United States)

    Gandica, Y.; Carvalho, J.; Sampaio dos Aidos, F.

    2015-01-01

    A model for the probabilistic function followed in editing Wikipedia is presented and compared with simulations and real data. It is argued that the probability of editing is proportional to the editor's number of previous edits (preferential attachment), to the editor's fitness, and to an aging factor. Using these simple ingredients, it is possible to reproduce the results obtained for Wikipedia editing dynamics for a collection of single pages as well as the averaged results. Using a stochastic process framework, a recursive equation was obtained for the average of the number of edits per editor that seems to describe the editing behavior in Wikipedia.

  8. Generation of Myostatin Gene-Edited Channel Catfish (Ictalurus punctatus) via Zygote Injection of CRISPR/Cas9 System.

    Science.gov (United States)

    Khalil, Karim; Elayat, Medhat; Khalifa, Elsayed; Daghash, Samer; Elaswad, Ahmed; Miller, Michael; Abdelrahman, Hisham; Ye, Zhi; Odin, Ramjie; Drescher, David; Vo, Khoi; Gosh, Kamal; Bugg, William; Robinson, Dalton; Dunham, Rex

    2017-08-04

    The myostatin (MSTN) gene is important because of its role in regulation of skeletal muscle growth in all vertebrates. In this study, CRISPR/Cas9 was utilized to successfully target the channel catfish, Ictalurus punctatus, muscle suppressor gene MSTN. CRISPR/Cas9 induced high rates (88-100%) of mutagenesis in the target protein-encoding sites of MSTN. MSTN-edited fry had more muscle cells (p CRISPR/Cas9 is a highly efficient tool for editing the channel catfish genome, and opens ways for facilitating channel catfish genetic enhancement and functional genomics. This approach may produce growth-enhanced channel catfish and increase productivity.

  9. Cloud information system «Redactor.Online» for the create of periodic scientific-educational editions

    Directory of Open Access Journals (Sweden)

    E. V. Golubev

    2016-01-01

    Full Text Available The article presents the approaches to the creation of cloud information system for automation of business processes related to the preparation and publication of periodic scientific and educational publications (publishing. The aim of the research is the development of concepts, models, patterns, architecture of such a system, the choice of software implementation. The urgency of development based on the results of a study of existing and used in practice technologies for creating electronic versions of scientific journals and other types of scientific and educational resources. It is expected that the use of cloud-based systems will reduce the time and cost of publishing houses, as well as improve the quality of published material (for example, through the use of their interactive and multimedia elements, add comments and assessment opportunities articles and so forth..Description is given on an example of cloud Redactor.Online system developed by small innovative enterprises of Petrozavodsk State University «Internet-business-system». As a means of implementation chosen freelydistributed products, such as PostgreSQL, PHP, Yii Framework.Logically, the cloud structure of the system is a set of components, based on common data sources and interacting with each other. The main components of the system are the basic (general part of promo-site system, editorial offices of periodicals created in the system, media sites, mobile applications editions, complex control system as a whole.The central element of the system architecture is the editorial offices. It provides a set of features related to the preparation for release and publication of the magazine, including the management of the lifecycle of the article (step preparation of the article the author, its review, proofreading, typesetting, translation, publication, and export to external citation indexes. Available functionality of this component is determined by the role assigned to the user

  10. Biallelic editing of a lamprey genome using the CRISPR/Cas9 system

    Science.gov (United States)

    Zu, Yao; Zhang, Xushuai; Ren, Jianfeng; Dong, Xuehong; Zhu, Zhe; Jia, Liang; Zhang, Qinghua; Li, Weiming

    2016-01-01

    Lampreys are extant representatives of agnathans. Descriptions of lamprey development, physiology and genome have provided critical insights into early evolution of vertebrate traits. However, efficient means for genetic manipulation in agnathan species have not been developed, hindering functional studies of genes in these important Evo-Devo models. Here, we report a CRISPR/Cas system optimized for lamprey genomes and use it to disrupt genomic loci in the Northeast Chinese lamprey (Lethenteron morii) with efficiencies ranging between 84~99%. The frequencies of indels observed in the target loci of golden (gol), kctd10, wee1, soxe2, and wnt7b, estimated from direct sequencing of genomic DNA samples of injected lamprey larvae, were 68/69, 47/56, 38/39, 36/37 and 36/42, respectively. These indels often occurred in both alleles. In the CRISPR/Cas9 treatment for gol or kctd10, 38.6% or 85.3% of the targeted larvae had the respective recessive null-like phenotypes, further confirming the disruption of both loci. The kctd10 gRNA, designed against an essential functional region of Kctd10, resulted in null-like phenotypes and in-frame mutations in alleles. We suggest that the CRISPR/Cas-based approach has the potential for efficient genetic perturbation in organisms less amenable to germ line transmission based approaches. PMID:27005311

  11. Delivery technologies for genome editing.

    Science.gov (United States)

    Yin, Hao; Kauffman, Kevin J; Anderson, Daniel G

    2017-06-01

    With the recent development of CRISPR technology, it is becoming increasingly easy to engineer the genome. Genome-editing systems based on CRISPR, as well as transcription activator-like effector nucleases (TALENs) and zinc-finger nucleases (ZFNs), are becoming valuable tools for biomedical research, drug discovery and development, and even gene therapy. However, for each of these systems to effectively enter cells of interest and perform their function, efficient and safe delivery technologies are needed. This Review discusses the principles of biomacromolecule delivery and gene editing, examines recent advances and challenges in non-viral and viral delivery methods, and highlights the status of related clinical trials.

  12. Impact of customized videotape education on quality of life in patients with chronic obstructive pulmonary disease.

    Science.gov (United States)

    Petty, Thomas L; Dempsey, Edward C; Collins, Timothy; Pluss, William; Lipkus, Isaac; Cutter, Gary R; Chalmers, Robin; Mitchell, Amy; Weil, Kenneth C

    2006-01-01

    To compare the impact of a library of pulmonary rehabilitation videotapes versus an older videotape and usual care on quality of life and ability to perform activities of daily living in persons with chronic obstructive pulmonary disease. Two hundred fourteen patients diagnosed with chronic obstructive pulmonary disease, emphysema, or chronic bronchitis were recruited and randomized to receive customized videotapes, standard videotapes, or usual care. Outcome measures included the Fatigue Impact Scale, Seattle Obstructive Lung Disease Questionnaire, and the SF-36(R) Health Survey. Differences in coping skills and emotional functioning on the Seattle Obstructive Lung Disease Questionnaire were found among the 174 subjects who completed the study. The customized videotape group improved by 8.6 and 4.8 points, respectively, whereas the score of the other groups decreased by less than 1 point for the coping skills, and the scores of the standard video and the control groups decreased by 3.0 and 2.1 points, respectively, for emotional functioning (P Impact Scale also improved for the customized videotape group, whereas the scores of the others remained unchanged. Videotape users demonstrated better conversion to and retention of exercise habits, with over 80% of customized videotape subjects who reported exercise habits at baseline continuing the habits as compared with 40% in the usual care group. Sedentary subjects at baseline were more likely to begin and maintain exercise if randomized to videotapes. These findings demonstrate increased quality of life, lower fatigue, and better compliance with a prescribed exercise regimen among subjects using the customized videotapes. There was a significant improvement in emotional functioning and coping skills among customized videotape subjects.

  13. Applications of genome editing in insects

    Science.gov (United States)

    Insect genome editing was first reported 1991 in Drosophila melanogaster but the technology used was not portable to other species. Not until the recent development of facile, engineered DNA endonuclease systems has gene editing become widely available to insect scientists. Most applications in inse...

  14. Early Book Stages, 0-5 Years [and] Creciendo con Libros (Growing [up] with Books). [Videotape.

    Science.gov (United States)

    Holguin, Roxanna

    Using a lighthearted and simple approach, this 23-minute videotape in English and Spanish versions presents interactions between parents and children while reading books. The children in the videotape range in age from 0 to 5 years. The video is introduced by scenes of children enjoying books while narration discussing the impact of reading to…

  15. Camera Perspective Bias in Videotaped Confessions: Evidence that Visual Attention Is a Mediator

    Science.gov (United States)

    Ware, Lezlee J.; Lassiter, G. Daniel; Patterson, Stephen M.; Ransom, Michael R.

    2008-01-01

    Several experiments have demonstrated a "camera perspective bias" in evaluations of videotaped confessions: videotapes with the camera focused on the suspect lead to judgments of greater voluntariness than alternative presentation formats. The present research investigated potential mediators of this bias. Using eye tracking to measure visual…

  16. Videotape Helps Standardize and Increase Objectivity of Medical Exams Across the Country

    Science.gov (United States)

    Diefenbach, Robert C.

    1976-01-01

    A 90-minute videotape demonstrates how to stage six stations simulating medical emergency problems to be solved by emergency medical technicians (EMT's) taking the National Registry's 150-question written final examination. The videotape also details the logistics of arranging the entire one-hour examination, used in over 30 States. (AJ)

  17. Learning Advanced Post-editing

    DEFF Research Database (Denmark)

    Alabau, Vicente; Carl, Michael; Casacuberta, Francisco

    2016-01-01

    This chapter reports the results of a longitudinal study (LS14) in which the CASMACAT post-editing workbench was tested with interactive translation prediction (ITP). Whereas previous studies with the CASMACAT workbench (Sanchis-Trilles et al., Machine Translation, 2014) or similar systems (Langl...... in uncovering any specific profiles of translators depending on personal factors such as previous experience in post-editing and typing skills. Finally, the aim was also to collect feedback from the post-editors in order to know more about their views regarding this type of technology....

  18. Therapeutic genome editing by combined viral and non-viral delivery of CRISPR system components in vivo.

    Science.gov (United States)

    Yin, Hao; Song, Chun-Qing; Dorkin, Joseph R; Zhu, Lihua J; Li, Yingxiang; Wu, Qiongqiong; Park, Angela; Yang, Junghoon; Suresh, Sneha; Bizhanova, Aizhan; Gupta, Ankit; Bolukbasi, Mehmet F; Walsh, Stephen; Bogorad, Roman L; Gao, Guangping; Weng, Zhiping; Dong, Yizhou; Koteliansky, Victor; Wolfe, Scot A; Langer, Robert; Xue, Wen; Anderson, Daniel G

    2016-03-01

    The combination of Cas9, guide RNA and repair template DNA can induce precise gene editing and the correction of genetic diseases in adult mammals. However, clinical implementation of this technology requires safe and effective delivery of all of these components into the nuclei of the target tissue. Here, we combine lipid nanoparticle-mediated delivery of Cas9 mRNA with adeno-associated viruses encoding a sgRNA and a repair template to induce repair of a disease gene in adult animals. We applied our delivery strategy to a mouse model of human hereditary tyrosinemia and show that the treatment generated fumarylacetoacetate hydrolase (Fah)-positive hepatocytes by correcting the causative Fah-splicing mutation. Treatment rescued disease symptoms such as weight loss and liver damage. The efficiency of correction was >6% of hepatocytes after a single application, suggesting potential utility of Cas9-based therapeutic genome editing for a range of diseases.

  19. Generation of Myostatin Gene-Edited Channel Catfish (Ictalurus punctatus) via Zygote Injection of CRISPR/Cas9 System

    OpenAIRE

    Khalil, Karim; Elayat, Medhat; Khalifa, Elsayed; Daghash, Samer; Elaswad, Ahmed; Miller, Michael; Abdelrahman, Hisham; Ye, Zhi; Odin, Ramjie; Drescher, David; Vo, Khoi; Gosh, Kamal; Bugg, William; Robinson, Dalton; Dunham, Rex

    2017-01-01

    The myostatin (MSTN) gene is important because of its role in regulation of skeletal muscle growth in all vertebrates. In this study, CRISPR/Cas9 was utilized to successfully target the channel catfish, Ictalurus punctatus, muscle suppressor gene MSTN. CRISPR/Cas9 induced high rates (88?100%) of mutagenesis in the target protein-encoding sites of MSTN. MSTN-edited fry had more muscle cells (p?

  20. Patients, doctors, and videotape: a prescription for creating optimal healing environments?

    Science.gov (United States)

    Frankel, Richard M; Sung, Sue Hee; Hsu, John T

    2005-01-01

    Despite repeated calls for greater patient autonomy, shared decision making, and exploration of patient preferences, relatively little is known about how patients actually experience care as a face-to-face interactional process. A selected review of the literature in this area suggests that important asymmetries exist. Key among them is the tendency to report experiences from the point of view of only one member of the doctor-patient dyad. Thus, patients might report on their experiences of the system gone awry or professionals might attempt to understand the root cause(s) of an error by describing the conditions under which it occurred. Either way, information about the experience of care tends to be reported as a "my side" telling. Optimal healing environments are defined as health care contexts that are based upon mutual respect and build positive, resilient relationships among participants, using the qualities and resources of those relationships to enhance health. Understanding optimal healing environments also requires a knowledge of how doctors and patients share time and space together in the consultation (an etic or outsider perspective) and also a knowledge of the participants' experience of their time together (an emic or insider perspective). After reviewing its methodological roots, the IMPACT approach (Interactive Methodology for Preserving and Analyzing Clinical Transactions) using videotaped encounters along with independent commentaries by participants is described and applied in two different types of analyses: one in which the doctor-patient dyad is the unit of measure; the second in which physicians are stratified by having historically high or low satisfaction scores. In the latter approach, doctors' and patients' comments are compared across strata. At the dyadic level, and despite large gaps in income and social status, doctors and patients exhibit a strong tendency to cluster in terms of where they comment, so much so that in a pilot study

  1. 36 CFR 1280.48 - How do I apply to film, photograph, or videotape on NARA property for news purposes?

    Science.gov (United States)

    2010-07-01

    ..., photograph, or videotape on NARA property for news purposes? 1280.48 Section 1280.48 Parks, Forests, and... film, photograph, or videotape on NARA property for news purposes? (a) If you wish to film, photograph... wish to film, photograph, or videotape for news purposes at a Presidential library or at a regional...

  2. Genome edited animals: Learning from GM crops?

    Science.gov (United States)

    Bruce, Ann

    2017-06-01

    Genome editing of livestock is poised to become commercial reality, yet questions remain as to appropriate regulation, potential impact on the industry sector and public acceptability of products. This paper looks at how genome editing of livestock has attempted to learn some of the lessons from commercialisation of GM crops, and takes a systemic approach to explore some of the complexity and ambiguity in incorporating genome edited animals in a food production system. Current applications of genome editing are considered, viewed from the perspective of past technological applications. The question of what is genome editing, and can it be considered natural is examined. The implications of regulation on development of different sectors of livestock production systems are studied, with a particular focus on the veterinary sector. From an EU perspective, regulation of genome edited animals, although not necessarily the same as for GM crops, is advocated from a number of different perspectives. This paper aims to open up new avenues of research on genome edited animals, extending from the current primary focus on science and regulation, to engage with a wider-range of food system actors.

  3. The software for automatic creation of the formal grammars used by speech recognition, computer vision, editable text conversion systems, and some new functions

    Science.gov (United States)

    Kardava, Irakli; Tadyszak, Krzysztof; Gulua, Nana; Jurga, Stefan

    2017-02-01

    For more flexibility of environmental perception by artificial intelligence it is needed to exist the supporting software modules, which will be able to automate the creation of specific language syntax and to make a further analysis for relevant decisions based on semantic functions. According of our proposed approach, of which implementation it is possible to create the couples of formal rules of given sentences (in case of natural languages) or statements (in case of special languages) by helping of computer vision, speech recognition or editable text conversion system for further automatic improvement. In other words, we have developed an approach, by which it can be achieved to significantly improve the training process automation of artificial intelligence, which as a result will give us a higher level of self-developing skills independently from us (from users). At the base of our approach we have developed a software demo version, which includes the algorithm and software code for the entire above mentioned component's implementation (computer vision, speech recognition and editable text conversion system). The program has the ability to work in a multi - stream mode and simultaneously create a syntax based on receiving information from several sources.

  4. Development of a genome-editing CRISPR/Cas9 system in thermophilic fungal Myceliophthora species and its application to hyper-cellulase production strain engineering.

    Science.gov (United States)

    Liu, Qian; Gao, Ranran; Li, Jingen; Lin, Liangcai; Zhao, Junqi; Sun, Wenliang; Tian, Chaoguang

    2017-01-01

    Over the past 3 years, the CRISPR/Cas9 system has revolutionized the field of genome engineering. However, its application has not yet been validated in thermophilic fungi. Myceliophthora thermophila, an important thermophilic biomass-degrading fungus, has attracted industrial interest for the production of efficient thermostable enzymes. Genetic manipulation of Myceliophthora is crucial for metabolic engineering and to unravel the mechanism of lignocellulose deconstruction. The lack of a powerful, versatile genome-editing tool has impeded the broader exploitation of M. thermophila in biotechnology. In this study, a CRISPR/Cas9 system for efficient multiplexed genome engineering was successfully developed in the thermophilic species M. thermophila and M. heterothallica. This CRISPR/Cas9 system could efficiently mutate the imported amdS gene in the genome via NHEJ-mediated events. As a proof of principle, the genes of the cellulase production pathway, including cre-1, res-1, gh1-1, and alp-1, were chosen as editing targets. Simultaneous multigene disruptions of up to four of these different loci were accomplished with neomycin selection marker integration via a single transformation using the CRISPR/Cas9 system. Using this genome-engineering tool, multiple strains exhibiting pronounced hyper-cellulase production were generated, in which the extracellular secreted protein and lignocellulase activities were significantly increased (up to 5- and 13-fold, respectively) compared with the parental strain. A genome-wide engineering system for thermophilic fungi was established based on CRISPR/Cas9. Successful expansion of this system without modification to M. heterothallica indicates it has wide adaptability and flexibility for use in other Myceliophthora species. This system could greatly accelerate strain engineering of thermophilic fungi for production of industrial enzymes, such as cellulases as shown in this study and possibly bio-based fuels and chemicals in the

  5. Design Of And Image Editing With A Space-Filling Three-Dimensional Display Based On A Standard Raster Graphics System

    Science.gov (United States)

    Fuchs, Henry; Pizer, Stephen M.; Heinz, E. Ralph; Bloomberg, Sandra H.; Tsai, Li-Ching; Strickland, Dorothy C.

    1983-04-01

    We are developing graphics systems, image preprocessing methods, and interactive manipulation techniques for a space-filling 3D display using a varifocal mirror principle. Our driving problem is a medical imaging need for presentation of three-dimensional intensity information. The major goal of both the image preprocessing and the interactive manipulation has been to overcome obscuration, which we feel is coming to be recognized as the central problem in any space-filling display. In our system, the preprocessing step highlights important image features such as surfaces. At display time, the object can be dynamically edited and rotated for convenient viewing from various directions. Our particular hardware design allows the 3D display to be constructed as an inexpensive add-on to a standard video graphics system. The interactive rotation and other manipulations are achieved by the standard built-in graphics processor.

  6. Videotape review: a valuable tool for self-assessment of teaching skills.

    Science.gov (United States)

    Kleffner, J H; Hendricson, W D; Littlefield, J H; Hudepohl, N

    1985-11-01

    This paper describes the components of an instructor improvement program known as VISIT (Videotaping Instruction for Self-Assessment of Instructional Technique). Through the use of videotape recordings of classroom, laboratory or clinical teaching and observation by trained observers, faculty can pinpoint instructional strengths and problem areas, plan refinements and evaluate the impact of these refinements. Ten years of experience with VISIT indicates that post-lecture consultation sessions between the instructor and observer are vital to the success of this activity.

  7. Predictive value of the 8th edition American Joint Commission Cancer (AJCC) nodal staging system for patients with cutaneous squamous cell carcinoma of the head and neck.

    Science.gov (United States)

    Liu, Jessica; Ebrahimi, Ardalan; Low, Tsu-Hui Hubert; Gao, Kan; Palme, Carsten E; Sydney, Ch'ng; Ashford, Bruce G; Iyer, N Gopalakrishna; Clark, Jonathan R; Gupta, Ruta

    2017-10-19

    The 8th edition American Joint Committee on Cancer (AJCC8) provides the same nodal staging system for mucosal and cutaneous squamous cell carcinoma of the head and neck (HNcSCC) and includes extranodal extension (ENE) as an adverse prognostic criterion. This study evaluates the prognostic efficacy of the AJCC8 pathologic nodal staging system (pN) for HNcSCC. Univariate analysis of 382 patients with metastatic HNcSCC staged according to both the 7th (AJCC7) and the 8th edition staging systems. The AJCC7 pN3 category was associated with reduced disease specific survival (DSS HR 5.49; 95% CI: 1.83-16.53; P = 0.002) and overall survival (OS HR 3.42; 95% CI: 1.54-7.58; P = 0.002) as compared with pN1. However, no difference was observed between pN1, pN2, and pN3 categories as defined by the AJCC8. Also, when comparing Stages III and IV as defined by AJCC8, there was no difference in DSS (HR 0.75; 95% CI: 0.34-1.67; P = 0.478) or OS (HR 0.88; 95% CI: 0.51-1.51; P = 0.648). The AJCC8 performed poorly as a prognostic indicator for patients with metastatic HNcSCC in this cohort. HNcSCC would benefit from a staging system that accounts for its unique biologic characteristics distinct from mucosal SCC. © 2017 Wiley Periodicals, Inc.

  8. [The research on the edition of Daquanbencao (Complete Collection of Materia Medica)].

    Science.gov (United States)

    Li, Jian; Zhang, Wei; Zhang, Rui-xian

    2009-07-01

    Zhengleibencao (Classified Materia Medica) had been formed into several kinds of edition systems during its dissemination, among which there was the edition system of Daquanbencao (Complete Collection of Materia Medica). Daquanbencao was originally carved in the Jin dynasty, thereafter it was re-carved in the Yuan, Ming and Qing dynasties so as to form a series of editions such as the edition of Zhenyou in the second year of the Jin dynasty; the edition of the Zongwenshuyuan college in Dade renyan year of the Yuan dynasty; the WANG Qiu's carved edition of Shangyitang hall in the Ming dynasty; the carved edition of Jishanshuyuan, the Jishang mountain college in the Ming dynasty, the reprinted edition of PENG Duan-wu in the Ming dynasty, the supplementary edition of YANG Bi-da in the Qing dynasty;, and the carved edition of KE Feng-shi in the Qing dynasty. Among all the editions, Chongkanjingshizhengleidaquanbencao (Reprinted Classified Daquan Materia Medica from Historical Classics) was the representative one. As a representative of the above editions, the carved edition of WANG took the edition of the Zongwenshuyuan college of the Yuan dynasty as the original edition, but the images picture of materia medica adopted from the edition of Zhenghebencao (Materia Medica of the Zhenghe era).

  9. CRISPR Genome Editing

    Science.gov (United States)

    A research article about a technique for gene editing known as CRISPR-Cas9. The technique has made it much easier and faster for cancer researchers to study mutations and test new therapeutic targets.

  10. Applications of genome editing in insects.

    Science.gov (United States)

    Reid, William; O'Brochta, David A

    2016-02-01

    Insect genome editing was first reported 1991 in Drosophila melanogaster but the technology used was not portable to other species. Not until the recent development of facile, engineered DNA endonuclease systems has gene editing become widely available to insect scientists. Most applications in insects to date have been technical in nature but this is rapidly changing. Functional genomics and genetics-based insect control efforts will be major beneficiaries of the application of contemporary gene editing technologies. Engineered endonucleases like Cas9 make it possible to create powerful and effective gene drive systems that could be used to reduce or even eradicate specific insect populations. 'Best practices' for using Cas9-based editing are beginning to emerge making it easier and more effective to design and use but gene editing technologies still require traditional means of delivery in order to introduce them into somatic and germ cells of insects-microinjection of developing embryos. This constrains the use of these technologies by insect scientists. Insects created using editing technologies challenge existing governmental regulatory structures designed to manage genetically modified organisms. Copyright © 2015 Elsevier Inc. All rights reserved.

  11. Efficient edition of the bovine PRNP prion gene in somatic cells and IVF embryos using the CRISPR/Cas9 system.

    Science.gov (United States)

    Bevacqua, R J; Fernandez-Martín, R; Savy, V; Canel, N G; Gismondi, M I; Kues, W A; Carlson, D F; Fahrenkrug, S C; Niemann, H; Taboga, O A; Ferraris, S; Salamone, D F

    2016-11-01

    The recently developed engineered nucleases, such as zinc-finger nucleases, transcription activator-like effector nucleases, and clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated nuclease (Cas) 9, provide new opportunities for gene editing in a straightforward manner. However, few reports are available regarding CRISPR application and efficiency in cattle. Here, the CRISPR/Cas9 system was used with the aim of inducing knockout and knock-in alleles of the bovine PRNP gene, responsible for mad cow disease, both in bovine fetal fibroblasts and in IVF embryos. Five single-guide RNAs were designed to target 875 bp of PRNP exon 3, and all five were codelivered with Cas9. The feasibility of inducing homologous recombination (HR) was evaluated with a reporter vector carrying EGFP flanked by 1 kbp PRNP regions (pHRegfp). For somatic cells, plasmids coding for Cas9 and for each of the five single-guide RNAs (pCMVCas9 and pSPgRNAs) were transfected under two different conditions (1X and 2X). For IVF zygotes, cytoplasmic injection was conducted with either plasmids or mRNA. For plasmid injection groups, 1 pg pCMVCas9 + 0.1 pg of each pSPgRNA (DNA2X) was used per zygote. In the case of RNA, two amounts (RNA1X and RNA2X) were compared. To assess the occurrence of HR, a group additionally cotransfected or coinjected with pHRegfp plasmid was included. Somatic cell lysates were analyzed by polymerase chain reaction and surveyor assay. In the case of embryos, the in vitro development and the genotype of blastocysts were evaluated by polymerase chain reaction and sequencing. In somatic cells, 2X transfection resulted in indels and large deletions of the targeted PRNP region. Regarding embryo injection, higher blastocyst rates were obtained for RNA injected groups (46/103 [44.6%] and 55/116 [47.4%] for RNA1X and RNA2X) than for the DNA2X group (26/140 [18.6%], P < 0.05). In 46% (26/56) of the total sequenced blastocysts, specific gene editing was

  12. Developing new levels of edit

    Energy Technology Data Exchange (ETDEWEB)

    Prono, J.K.

    1997-06-01

    Since 1985, Los Alamos National Laboratory (LANL) staff have had four levels of edit to choose from for technical reports. When a CQI survey showed that both authors and editors felt the levels were not meeting author needs, LANL set about revising them. The goals were to simplify the editing process, focus editing on improving technical clarity, and ensure value added in editing. This paper describes the revision process and product--three author-based levels of edit.

  13. Fuel Cell Handbook, Fourth Edition

    Energy Technology Data Exchange (ETDEWEB)

    Stauffer, D.B; Hirschenhofer, J.H.; Klett, M.G.; Engleman, R.R.

    1998-11-01

    Robust progress has been made in fuel cell technology since the previous edition of the Fuel Cell Handbook was published in January 1994. This Handbook provides a foundation in fuel cells for persons wanting a better understanding of the technology, its benefits, and the systems issues that influence its application. Trends in technology are discussed, including next-generation concepts that promise ultra high efficiency and low cost, while providing exceptionally clean power plant systems. Section 1 summarizes fuel cell progress since the last edition and includes existing power plant nameplate data. Section 2 addresses the thermodynamics of fuel cells to provide an understanding of fuel cell operation at two levels (basic and advanced). Sections 3 through 6 describe the four major fuel cell types and their performance based on cell operating conditions. The section on polymer electrolyte membrane fuel cells has been added to reflect their emergence as a significant fuel cell technology. Phosphoric acid, molten carbonate, and solid oxide fuel cell technology description sections have been updated from the previous edition. New information indicates that manufacturers have stayed with proven cell designs, focusing instead on advancing the system surrounding the fuel cell to lower life cycle costs. Section 7, Fuel Cell Systems, has been significantly revised to characterize near-term and next-generation fuel cell power plant systems at a conceptual level of detail. Section 8 provides examples of practical fuel cell system calculations. A list of fuel cell URLs is included in the Appendix. A new index assists the reader in locating specific information quickly.

  14. Genome editing with engineered nucleases in plants.

    Science.gov (United States)

    Osakabe, Yuriko; Osakabe, Keishi

    2015-03-01

    Numerous examples of successful 'genome editing' now exist. Genome editing uses engineered nucleases as powerful tools to target specific DNA sequences to edit genes precisely in the genomes of both model and crop plants, as well as a variety of other organisms. The DNA-binding domains of zinc finger (ZF) proteins were the first to be used as genome editing tools, in the form of designed ZF nucleases (ZFNs). More recently, transcription activator-like effector nucleases (TALENs), as well as the clustered regularly interspaced short palindromic repeats/Cas9 (CRISPR/Cas9) system, which utilizes RNA-DNA interactions, have proved useful. A key step in genome editing is the generation of a double-stranded DNA break that is specific to the target gene. This is achieved by custom-designed endonucleases, which enable site-directed mutagenesis via a non-homologous end-joining (NHEJ) repair pathway and/or gene targeting via homologous recombination (HR) to occur efficiently at specific sites in the genome. This review provides an overview of recent advances in genome editing technologies in plants, and discusses how these can provide insights into current plant molecular biology research and molecular breeding technology. © The Author 2014. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. All rights reserved. For permissions, please email: journals.permissions@oup.com.

  15. The Kamusi Project Edit Engine: A Tool for Collaborative Lexicography.

    Science.gov (United States)

    Benjamin, Martin; Biersteker, Ann

    2001-01-01

    Discusses the design and implementation of the Kamusi Project Edit Engine, a Web-based software system uniquely suited to the needs of Swahili collaborative lexicography. Describes the edit engine, including organization of the lexicon and the mechanics by which participants use the system, discusses philosophical issues confronted in the design,…

  16. Childhood videotaped social and neuromotor precursors of schizophrenia: a prospective investigation

    DEFF Research Database (Denmark)

    Schiffman, Jason; Walker, Elaine; Ekstrøm, Morten

    2004-01-01

    OBJECTIVE: The authors examined videotaped behaviors of children who developed schizophrenia as adults and of comparison subjects to disclose possible social and neuromotor deficits foreshadowing later development of schizophrenia. METHOD: In 1972, a sample of 265 11-13-year-old Danish children...... disorder. In 1991, adult psychiatric outcome data were obtained for 91.3% (N=242). This study systematically analyzed the videotapes to determine whether the children who developed schizophrenia as adults evidenced greater social and/or neuromotor deficits than children who did not develop a psychiatric...... disorder and children who developed other psychiatric disorders. RESULTS: The findings from this study suggest that the brief videotaped footage of children eating lunch was able to discriminate between the individuals who later developed schizophrenia and those who did not. Specifically...

  17. A simple in vitro RNA editing assay for chloroplast transcripts using fluorescent dideoxynucleotides: distinct types of sequence elements required for editing of ndh transcripts.

    Science.gov (United States)

    Sasaki, Tadamasa; Yukawa, Yasushi; Wakasugi, Tatsuya; Yamada, Kyoji; Sugiura, Masahiro

    2006-09-01

    RNA editing is found in various transcripts from land plant chloroplasts. In tobacco chloroplasts, C-to-U conversion occurs at 36 specific sites including two sites identified in this work. Our RNA editing assay system using chloroplast extracts facilitated biochemical analyses of editing reactions but required mRNAs labeled with (32)P at specific sites. Here, we have improved the in vitro system using fluorescence-labeled chain terminators, ddGTP and ddATP, and have measured the editing activity at 19 sites in ndh transcripts. Editing activities varied from site to site. It has been reported that one editing site in ndhA mRNAs is present in spinach but absent in tobacco, but a corresponding editing capacity had been found in vivo in tobacco using biolistic transformation. We confirmed biochemically the existence of this activity in tobacco extracts. Using the non-radioactive assay, we examined sequences essential for editing within a 50-nt mRNA region encompassing an editing site. Editing of the ndhB-2 site requires a short sequence in front of the editing site, while that of the ndhF mRNA requires two separate regions, a sequence surrounding the editing site and a 5' distal sequence. These results suggest that distinct editing mechanisms are present in chloroplasts.

  18. Editing Audio with Audacity

    Directory of Open Access Journals (Sweden)

    Brandon Walsh

    2016-08-01

    Full Text Available For those interested in audio, basic sound editing skills go a long way. Being able to handle and manipulate the materials can help you take control of your object of study: you can zoom in and extract particular moments to analyze, process the audio, and upload the materials to a server to compliment a blog post on the topic. On a more practical level, these skills could also allow you to record and package recordings of yourself or others for distribution. That guest lecture taking place in your department? Record it and edit it yourself! Doing so is a lightweight way to distribute resources among various institutions, and it also helps make the materials more accessible for readers and listeners with a wide variety of learning needs. In this lesson you will learn how to use Audacity to load, record, edit, mix, and export audio files. Sound editing platforms are often expensive and offer extensive capabilities that can be overwhelming to the first-time user, but Audacity is a free and open source alternative that offers powerful capabilities for sound editing with a low barrier for entry. For this lesson we will work with two audio files: a recording of Bach’s Goldberg Variations available from MusOpen and another recording of your own voice that will be made in the course of the lesson. This tutorial uses Audacity 2.1.2, released January 2016.

  19. Evaluating first-year nursing students' ability to self-assess psychomotor skills using videotape.

    Science.gov (United States)

    Watts, Wilda Ellen; Rush, Kathy; Wright, Marjorie

    2009-01-01

    Developing confidence in self-assessment is an important skill in becoming a self-regulated learner. This article describes the process undertaken by a group of educators of incorporating self-assessment in combination with psychomotor skill development with freshman students. Students were videotaped performing a wound-dressing change; the videotaping was immediately followed by a self-assessment of their performance using a faculty-generated checklist. Comparison of faculty and student ratings revealed the tendency for students to overrate their performance and identified discordance between students and faculty on several steps of the procedure. These evaluation findings are discussed and future directions explored.

  20. Quantifying Genome Editing Outcomes at Endogenous Loci using SMRT Sequencing

    Science.gov (United States)

    Clark, Joseph; Punjya, Niraj; Sebastiano, Vittorio; Bao, Gang; Porteus, Matthew H

    2014-01-01

    SUMMARY Targeted genome editing with engineered nucleases has transformed the ability to introduce precise sequence modifications at almost any site within the genome. A major obstacle to probing the efficiency and consequences of genome editing is that no existing method enables the frequency of different editing events to be simultaneously measured across a cell population at any endogenous genomic locus. We have developed a novel method for quantifying individual genome editing outcomes at any site of interest using single molecule real time (SMRT) DNA sequencing. We show that this approach can be applied at various loci, using multiple engineered nuclease platforms including TALENs, RNA guided endonucleases (CRISPR/Cas9), and ZFNs, and in different cell lines to identify conditions and strategies in which the desired engineering outcome has occurred. This approach facilitates the evaluation of new gene editing technologies and permits sensitive quantification of editing outcomes in almost every experimental system used. PMID:24685129

  1. Combining the auxin-inducible degradation system with CRISPR/Cas9-based genome editing for the conditional depletion of endogenous Drosophila melanogaster proteins.

    Science.gov (United States)

    Bence, Melinda; Jankovics, Ferenc; Lukácsovich, Tamás; Erdélyi, Miklós

    2017-04-01

    Inducible protein degradation techniques have considerable advantages over classical genetic approaches, which generate loss-of-function phenotypes at the gene or mRNA level. The plant-derived auxin-inducible degradation system (AID) is a promising technique which enables the degradation of target proteins tagged with the AID motif in nonplant cells. Here, we present a detailed characterization of this method employed during the adult oogenesis of Drosophila. Furthermore, with the help of CRISPR/Cas9-based genome editing, we improve the utility of the AID system in the conditional elimination of endogenously expressed proteins. We demonstrate that the AID system induces efficient and reversible protein depletion of maternally provided proteins both in the ovary and the early embryo. Moreover, the AID system provides a fine spatiotemporal control of protein degradation and allows for the generation of different levels of protein knockdown in a well-regulated manner. These features of the AID system enable the unraveling of the discrete phenotypes of genes with highly complex functions. We utilized this system to generate a conditional loss-of-function allele which allows for the specific degradation of the Vasa protein without affecting its alternative splice variant (solo) and the vasa intronic gene (vig). With the help of this special allele, we demonstrate that dramatic decrease of Vasa protein in the vitellarium does not influence the completion of oogenesis as well as the establishment of proper anteroposterior and dorsoventral polarity in the developing oocyte. Our study suggests that both the localization and the translation of gurken mRNA in the vitellarium is independent from Vasa. © 2017 Federation of European Biochemical Societies.

  2. [CRISPR-Cas9 mediated genome editing in Caenorhabditis elegans].

    Science.gov (United States)

    Meng, Xi'nan; Zhou, Hengda; Xu, Suhong

    2017-10-25

    The development of genome editing techniques based on CRISPR (Clustered regularly interspaced short palindromic repeats)-Cas9 system has revolutionized biomedical researches. It can be utilized to edit genome sequence in almost any organisms including Caenorhabditis elegans, one of the most convenient and classic genetic model animals. The application of CRISPR-Cas9 mediated genome editing in C. elegans promotes the functional analysis of gene and proteins under many physiological conditions. In this mini-review, we summarized the development of CRISPR-Cas9-based genome editing in C. elegans.

  3. Precision genome editing

    DEFF Research Database (Denmark)

    Steentoft, Catharina; Bennett, Eric P; Schjoldager, Katrine Ter-Borch Gram

    2014-01-01

    Precise and stable gene editing in mammalian cell lines has until recently been hampered by the lack of efficient targeting methods. While different gene silencing strategies have had tremendous impact on many biological fields, they have generally not been applied with wide success in the field...... of glycobiology, primarily due to their low efficiencies, with resultant failure to impose substantial phenotypic consequences upon the final glycosylation products. Here, we review novel nuclease-based precision genome editing techniques enabling efficient and stable gene editing, including gene disruption...... by introducing single or double-stranded breaks at a defined genomic sequence. We here compare and contrast the different techniques and summarize their current applications, highlighting cases from the field of glycobiology as well as pointing to future opportunities. The emerging potential of precision gene...

  4. Application of the AJCC 7th edition carcinoma of the eyelid staging system: a medical center pathology based, 15-year review

    Directory of Open Access Journals (Sweden)

    Crawford CM

    2011-11-01

    Full Text Available Courtney Crawford1, Colby Fernelius2, Paula Young1, Stephen Groo2, Darryl Ainbinder21Blanchfield Army Hospital, Fort Campbell, KY, USA; 2Madigan Army Medical Center, Fort Lewis, WA, USAContext: The purpose of this study was to conduct a quality improvement (QI, applied practical review of the American Joint Committee on Cancer (AJCC 7th edition, Carcinoma of the Eyelid staging system. AJCC utilizes a primary tumor, lymph node, metastasis (pTNM cancer staging approach.Objective: We wanted to determine if the AJCC pTNM carcinoma staging system identified patients with highly aggressive carcinoma of the eyelid. We also wanted to determine if there were any unexpected issues in its practical application. Design: We conducted a 15-year, consecutive, retrospective review of all cases of excisional biopsy for carcinoma of the eyelid. We reviewed the original histopathology slides and complete pathology records for each case.Results: Over a 15-year review period, 52 cases of excisional biopsy for carcinoma of the eyelid were identified. The average age of the study population was 72 years. Nodular well-differentiated basal cell carcinoma (BCC was the predominant histology for 85% of cases. Morpheaform/metatypical BCC was the next dominant at 9%. Squamous cell carcinoma and sebaceous carcinoma followed at 4% and 2%, respectively. We were able to assign clear staging to 50 of the 52 cases with the available pathology data. The stage results were as follows: stage 1A 72%, stage 1B 22%, stage II 4%, stage III 2%, with no cases of stage IV metastatic disease.Conclusions: The 7th edition AJCC Carcinoma of the Eyelid chapter proved to be a practical tool for carcinoma staging of the eyelid. The largest tumor dimension remains an effective predictive factor. High-grade pathologic prognostic factors such as tumor necrosis or perineural spread had a 100% association with a final stage of II or greater. Concordance and compliance was 100% for the recommended site

  5. Human Germline Genome Editing.

    Science.gov (United States)

    Ormond, Kelly E; Mortlock, Douglas P; Scholes, Derek T; Bombard, Yvonne; Brody, Lawrence C; Faucett, W Andrew; Garrison, Nanibaa' A; Hercher, Laura; Isasi, Rosario; Middleton, Anna; Musunuru, Kiran; Shriner, Daniel; Virani, Alice; Young, Caroline E

    2017-08-03

    With CRISPR/Cas9 and other genome-editing technologies, successful somatic and germline genome editing are becoming feasible. To respond, an American Society of Human Genetics (ASHG) workgroup developed this position statement, which was approved by the ASHG Board in March 2017. The workgroup included representatives from the UK Association of Genetic Nurses and Counsellors, Canadian Association of Genetic Counsellors, International Genetic Epidemiology Society, and US National Society of Genetic Counselors. These groups, as well as the American Society for Reproductive Medicine, Asia Pacific Society of Human Genetics, British Society for Genetic Medicine, Human Genetics Society of Australasia, Professional Society of Genetic Counselors in Asia, and Southern African Society for Human Genetics, endorsed the final statement. The statement includes the following positions. (1) At this time, given the nature and number of unanswered scientific, ethical, and policy questions, it is inappropriate to perform germline gene editing that culminates in human pregnancy. (2) Currently, there is no reason to prohibit in vitro germline genome editing on human embryos and gametes, with appropriate oversight and consent from donors, to facilitate research on the possible future clinical applications of gene editing. There should be no prohibition on making public funds available to support this research. (3) Future clinical application of human germline genome editing should not proceed unless, at a minimum, there is (a) a compelling medical rationale, (b) an evidence base that supports its clinical use, (c) an ethical justification, and (d) a transparent public process to solicit and incorporate stakeholder input. Copyright © 2017 American Society of Human Genetics. All rights reserved.

  6. 36 CFR 1280.44 - May I film, photograph, or videotape on NARA property for commercial purposes?

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false May I film, photograph, or videotape on NARA property for commercial purposes? 1280.44 Section 1280.44 Parks, Forests, and Public... Rules for Filming, Photographing, or Videotaping on NARA Property? § 1280.44 May I film, photograph, or...

  7. Animal Classification. Animal Life in Action[TM]. Schlessinger Science Library. [Videotape].

    Science.gov (United States)

    2000

    This 23-minute videotape for grades 5-8, presents the myriad of animal life that exists on the planet. Students can view and perform experiments and investigations that help explain animal traits and habits. They learn what the terms "kingdom", "phylum", and "order" mean, and discover how the 3.5 million-plus organisms found on Earth fit into…

  8. Marine & Other Invertebrates. Animal Life in Action[TM]. Schlessinger Science Library. [Videotape].

    Science.gov (United States)

    2000

    This 23-minute videotape for grades 5-8, presents the myriad of animal life that exists on the planet. Students can view and perform experiments and investigations that help explain animal traits and habits. Invertebrate animals include a vast array of spineless creatures. In this video, students discover marine lifeforms such as jellyfish,…

  9. Real Talk: Interviews, Radio Broadcasts and Videotaping as Context in Advanced Italian Conversation Courses.

    Science.gov (United States)

    Orban, Clara

    1997-01-01

    Discusses the problems faced by teachers of third-year (i.e. advanced) Italian language courses, particularly in developing students' speaking skills. Stresses the importance of "real talk" and discusses relevant student activities such as interviewing native speakers, preparing live radio broadcasts, and videotaping students speeches and…

  10. Amphibians. Animal Life in Action[TM]. Schlessinger Science Library. [Videotape].

    Science.gov (United States)

    2000

    This 23-minute videotape for grades 5-8, presents the myriad of animal life that exists on the planet. Students can view and perform experiments and investigations that help explain animal traits and habits. Students find out about the world of amphibians as they examine their physical characteristics, environments, and life cycles, as well as…

  11. Camera Perspective Bias in Videotaped Confessions: Experimental Evidence of Its Perceptual Basis

    Science.gov (United States)

    Ratcliff, Jennifer J.; Lassiter, G. Daniel; Schmidt, Heather C.; Snyder, Celeste J.

    2006-01-01

    The camera perspective from which a criminal confession is videotaped influences later assessments of its voluntariness and the suspect's guilt. Previous research has suggested that this camera perspective bias is rooted in perceptual rather than conceptual processes, but these data are strictly correlational. In 3 experiments, the authors…

  12. Robert Sylwester on Social Interaction and Brain Development. Windows to the Mind, Volume 1. [Videotape].

    Science.gov (United States)

    Sylwester, Robert

    This videotape explores the relationship between the child's social world and cognitive development. The first part of the video examines why the social environment is important to brain development. This section looks at the amount of time a child spends in a social environment, and the anatomy of the developing brain. The second part of the…

  13. Insects & Other Arthropods. Animal Life in Action[TM]. Schlessinger Science Library. [Videotape].

    Science.gov (United States)

    2000

    This 23-minute videotape for grades 5-8, presents the myriad of animal life that exists on the planet. Students can view and perform experiments and investigations that help explain animal traits and habits. They also learn that there are more species of insects than any other animal class in the world. Insects are incredible creatures with many…

  14. The Importance of Child Development in Education: A Conservation with James Comer and Chip Wood. [Videotape].

    Science.gov (United States)

    Comer, James; Wood, Chip

    Taped before an audience of teachers from around the country, this 65-minute videotape presents a discussion between James Comer and Chip Wood, noted experts in child development and education, in which they converse and respond to questions about critical issues confronting educators today. During the first part of the video, Comer and Wood…

  15. Dancetime! 500 Years of Social Dance. Volume I: 15th-19th Centuries. [Videotape].

    Science.gov (United States)

    Teten, Carol

    This VHS videotape recording is the first in a two-volume series that presents 500 years of social dance, music, and fashion. It focuses on the 15th-19th centuries, including Renaissance nobility, Baroque extravagance, Regency refinement, and Victorian romanticism. Each era reflects the changing relationships between men and women through the…

  16. Dancetime! 500 Years of Social Dance. Volume II: 20th Century. [Videotape].

    Science.gov (United States)

    Teten, Carol

    This 50-minute VHS videotape is the second in a 2-volume series that presents 500 years of social dance, music, and fashion. It features dance and music of the 20th century, including; 1910s: animal dances, castle walk, apache, and tango; 1920s: black bottom and charleston; 1930s: marathon, movie musicals, big apple, and jitterbug; 1940s: rumba;…

  17. Video-Taped Instruction Creates Listening and Visual Memory Integration for Higher Reading and Math Scores.

    Science.gov (United States)

    Erland, Jan

    This pre-post quasi-experimental study was conducted in a public school 5th grade class to determine the effects of video-taped instruction in teaching analysis and pattern finding skills. Methodology included guidelines from Cognitive Behavior Modification, Suggestopedia, and Guilford's Structure of Intellect Model within the Kaufman and Kaufman…

  18. Birds. Animal Life in Action[TM]. Schlessinger Science Library. [Videotape].

    Science.gov (United States)

    2000

    This 23-minute videotape for grades 5-8, presents the myriad of animal life that exists on the planet. Students can view and perform experiments and investigations that help explain animal traits and habits. There are many different types of birds, over 9,000 different species. While not all birds take to the air, they all have feathers. Students…

  19. How To Dance through Time. Volume II: Dances of the Ragtime Era, 1910-1920. [Videotape].

    Science.gov (United States)

    Teten, Carol

    This 59-minute VHS videotape is the second in a series of "How To Dance Through Time" videos. It provides 44 step combinations and how-to instructions to help viewers learn to dance the most popular dances of the early 20th century (the ragtime era), including: the wild animal dances (fox trot, horse trot, kangaroo hop, duck waddle, squirrel,…

  20. Reptiles. Animal Life in Action[TM]. Schlessinger Science Library. [Videotape].

    Science.gov (United States)

    1999

    This 23-minute videotape for grades 5-8, presents the myriad of animal life that exists on the planet. Students can view and perform experiments and investigations that help explain animal traits and habits. The ancestors of reptiles date back to the dinosaurs. After the dinosaurs died out, it was one of the best-adapted species that survived and…

  1. A Videotape Series for Teaching Physicians to Evaluate Sexually Abused Children

    Science.gov (United States)

    Jones, Jerry G.; Garrett, Judy; Worthington, Toss

    2004-01-01

    A free videotape subscription series was utilized to increase the knowledge of general physicians in clinical practice about the medical evaluation of sexually abused children. Of the 65 physicians who requested the first tape, 39 (60%) completed it. Fourteen of the 39 physicians who completed the first tape (36%) completed the 5-tape series.…

  2. Food Chains. Animal Life in Action[TM]. Schlessinger Science Library. [Videotape].

    Science.gov (United States)

    2000

    This 23-minute videotape for grades 5-8, presents the myriad of animal life that exists on the planet. Students can view and perform experiments and investigations that help explain animal traits and habits. The food chain provides a clear example of how life continues year after year. Students learn how the cycle of energy starts with the sun,…

  3. CRISPR/Cas9 genome editing in wheat.

    Science.gov (United States)

    Kim, Dongjin; Alptekin, Burcu; Budak, Hikmet

    2017-09-16

    Genome editing has been a long-term challenge for molecular biology research, particularly for plants possess complex genome. The recently discovered Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/CRISPR-associated protein 9 (Cas9) system is a versatile tool for genome editing which enables editing of multiple genes based on the guidance of small RNAs. Even though the efficiency of CRISPR/Cas9 system has been shown with several studies from diploid plants, its application remains a challenge for plants with polyploid and complex genome. Here, we applied CRISPR/Cas9 genome editing system in wheat protoplast to conduct the targeted editing of stress-responsive transcription factor genes, wheat dehydration responsive element binding protein 2 (TaDREB2) and wheat ethylene responsive factor 3 (TaERF3). Targeted genome editing of TaDREB2 and TaERF3 was achieved with transient expression of small guide RNA and Cas9 protein in wheat protoplast.  The effectiveness of mutagenesis in wheat protoplast was confirmed with restriction enzyme digestion assay, T7 endonuclease assay, and sequencing. Furthermore, several off-target regions for designed sgRNAs were analyzed, and the specificity of genome editing was confirmed with amplicon sequencing. Overall results suggested that CRISPR/Cas9 genome editing system can easily be established on wheat protoplast and it has a huge potentiality for targeted manipulation of wheat genome for crop improvement purposes.

  4. Editing tools. Transcribing and encoding

    NARCIS (Netherlands)

    Spadini, E.

    2015-01-01

    This paper deals with editing tools and editing platforms, i.e. programs used by editors in order to fulfil one or more tasks in the creation of a scholarly digital edition (SDE). Recurring themes in the field of SDEs are the standardization of XML-TEI markup and the success of documentary digital

  5. Beginning to edit physics

    Energy Technology Data Exchange (ETDEWEB)

    Murphy, P.W.

    1995-02-01

    A physicist-turned-editor shows you the basics required for copyediting physics papers (physical quantities, symbols, units, scientific notation, the structure of mathematical expressions, the nature of graphs), and points the way to learning enough ``editorial physics`` to begin substantive editing.

  6. The Craft of Editing

    DEFF Research Database (Denmark)

    Moeran, Brian

    To edit is to make a choice, or series of choices. Will I write a rough draft of this essay in longhand, or hammer it out on my computer? If the latter, what font shall I use? Times New Roman, Book Antiqua, or Garamond? Once I get started, what style shall I adopt: realistic, confessional or impr...

  7. Contaminant hydrogeology. 2. edition

    Energy Technology Data Exchange (ETDEWEB)

    Fetter, C.W.

    1999-08-01

    This book is a major revision of the 1993 edition and includes the important practical concepts that have since emerged. Contents include: mass transport in saturated media; transformation, retardation, and attenuation of solutes; flow and mass transport in the vadose zone; multiphase flow; inorganic chemicals in groundwater; organic compounds in groundwater; groundwater and soil monitoring; and site remediation.

  8. The effect of videotaping students' interviews with patients for interview skill education.

    Science.gov (United States)

    Lee, Woo Sung; Hwang, Ji Young; Lim, Ji Eun; Suh, Sang-Yeon; Park, Ki Heum; Sung, Nak-Jin

    2013-03-01

    The importance of communication between patients and physicians has been proven in many previous studies. The authors analyzed the effect of interview skill education through videotapes which recorded students' interviews with real patients in the outpatient department of family medicine. This study was conducted with all students who chose the elective course of family medicine and one randomly selected student every week from an 'infectious internal medicine' class at Dongguk University Ilsan Hospital during the period from December 2008 to March 2011. All students performed a preliminary examination of a new patient at the outpatient department of family medicine. All consultations were videotaped. Feedback to the student was given on the same day by viewing the videotape together. After feedback, all students performed another preliminary examination of one new patient at the department of family medicine the same week. Three family medicine residents scored all videotapes using 10-item interview skill checklists. Many parts of the checklists were modified using the Arizona Clinical Interview Rating Scales. Thirty-three students participated. Of 10 items, nine showed increased scores after feedback. There was a significant change in four items after feedback: 'type of question' (before 2.36 ± 0.60, after 2.73 ± 0.72), 'timeline' (before 2.82 ± 0.68, after 3.18 ± 0.73), 'positive verbal reinforcement' (before 2.24 ± 0.56, after 2.61 ± 0.90), and the total score (before 21.70 ± 2.62, after 23.39 ± 3.13) (P skills using videotapes of students' preliminary consultations with real patients in outpatient settings, was effective in improving the interview areas of 'type of question,' 'timeline,' 'positive verbal reinforcement,' and the total interview scores.

  9. Safety critical systems handbook a straightforward guide to functional safety : IEC 61508 (2010 edition) and related standards

    CERN Document Server

    Smith, David J

    2010-01-01

    Electrical, electronic and programmable electronic systems increasingly carry out safety functions to guard workers and the public against injury or death and the environment against pollution. The international functional safety standard IEC 61508 was revised in 2010, and this is the first comprehensive guide available to the revised standard. As functional safety is applicable to many industries, this book will have a wide readership beyond the chemical and process sector, including oil and gas, power generation, nuclear, aircraft, and automotive industries, plus project, instrumentation, design, and control engineers. * The only comprehensive guide to IEC 61508, updated to cover the 2010 amendments, that will ensure engineers are compliant with the latest process safety systems design and operation standards* Helps readers understand the process required to apply safety critical systems standards* Real-world approach helps users to interpret the standard, with case studies and best practice design examples...

  10. Generation of an ICF Syndrome Model by Efficient Genome Editing of Human Induced Pluripotent Stem Cells Using the CRISPR System

    Directory of Open Access Journals (Sweden)

    Izuho Hatada

    2013-09-01

    Full Text Available Genome manipulation of human induced pluripotent stem (iPS cells is essential to achieve their full potential as tools for regenerative medicine. To date, however, gene targeting in human pluripotent stem cells (hPSCs has proven to be extremely difficult. Recently, an efficient genome manipulation technology using the RNA-guided DNase Cas9, the clustered regularly interspaced short palindromic repeats (CRISPR system, has been developed. Here we report the efficient generation of an iPS cell model for immunodeficiency, centromeric region instability, facial anomalies syndrome (ICF syndrome using the CRISPR system. We obtained iPS cells with mutations in both alleles of DNA methyltransferase 3B (DNMT3B in 63% of transfected clones. Our data suggest that the CRISPR system is highly efficient and useful for genome engineering of human iPS cells.

  11. Designed nucleases for targeted genome editing.

    Science.gov (United States)

    Lee, Junwon; Chung, Jae-Hee; Kim, Ho Min; Kim, Dong-Wook; Kim, Hyongbum

    2016-02-01

    Targeted genome-editing technology using designed nucleases has been evolving rapidly, and its applications are widely expanding in research, medicine and biotechnology. Using this genome-modifying technology, researchers can precisely and efficiently insert, remove or change specific sequences in various cultured cells, micro-organisms, animals and plants. This genome editing is based on the generation of double-strand breaks (DSBs), repair of which modifies the genome through nonhomologous end-joining (NHEJ) or homology-directed repair (HDR). In addition, designed nickase-induced generation of single-strand breaks can also lead to precise genome editing through HDR, albeit at relatively lower efficiencies than that induced by nucleases. Three kinds of designed nucleases have been used for targeted DSB formation: zinc-finger nucleases, transcription activator-like effector nucleases, and RNA-guided engineered nucleases derived from the bacterial clustered regularly interspaced short palindromic repeat (CRISPR)-Cas (CRISPR-associated) system. A growing number of researchers are using genome-editing technologies, which have become more accessible and affordable since the discovery and adaptation of CRISPR-Cas9. Here, the repair mechanism and outcomes of DSBs are reviewed and the three types of designed nucleases are discussed with the hope that such understanding will facilitate applications to genome editing. © 2015 Society for Experimental Biology, Association of Applied Biologists and John Wiley & Sons Ltd.

  12. Advantages of using the CRISPR/Cas9 system of genome editing to investigate male reproductive mechanisms using mouse models

    Directory of Open Access Journals (Sweden)

    Samantha A. M. Young

    2015-01-01

    Full Text Available Gene disruption technology has long been beneficial for the study of male reproductive biology. However, because of the time and cost involved, this technology was not a viable method except in specialist laboratories. The advent of the CRISPR/Cas9 system of gene disruption has ushered in a new era of genetic investigation. Now, it is possible to generate gene-disrupted mouse models in very little time and at very little cost. This Highlight article discusses the application of this technology to study the genetics of male fertility and looks at some of the future uses of this system that could be used to reveal the essential and nonessential genetic components of male reproductive mechanisms.

  13. Introduction to nuclear science, second edition

    CERN Document Server

    Bryan, Jeff C.

    2013-01-01

    This book was written to provide students who have limited backgrounds in the physical sciences and math with an accessible textbook on nuclear science. Expanding on the foundation of the bestselling first edition, Introduction to Nuclear Science, Second Edition provides a clear and complete introduction to nuclear chemistry and physics, from basic concepts to nuclear power and medical applications. Incorporating suggestions from professors using this book for their courses, the author has created a new text that is approximately 60 percent larger and more comprehensive and flexible than the first.New to This Edition: Thorough review of nuclear forensics, radiology, gamma cameras, and decay through proton or neutron emission More detailed explanations of the necessary mathematics A chapter on dosimetry of radiation fields Expanded discussion of applications, introduced earlier in the text More in-depth coverage of nuclear reactors, including a new chapter examining more reactor types, their safety systems,...

  14. Second edition of 'The Bethesda System for reporting cervical cytology' - atlas, website, and Bethesda interobserver reproducibility project.

    Science.gov (United States)

    Nayar, Ritu; Solomon, Diane

    2004-10-21

    A joint task force of the American Society of Cytopathology (ASC) and the National Cancer Institute (NCI) recently completed a 2-year effort to revise the Bethesda System "blue book" atlas and develop a complementary web-based collection of cervical cytology images. The web-based collection of images is housed on the ASC website, which went live on November 5th, 2003; it can be directly accessed at http://www.cytopathology.org/NIH/.

  15. Second edition of 'The Bethesda System for reporting cervical cytology' – atlas, website, and Bethesda interobserver reproducibility project

    Directory of Open Access Journals (Sweden)

    Solomon Diane

    2004-01-01

    Full Text Available Abstract A joint task force of the American Society of Cytopathology (ASC and the National Cancer Institute (NCI recently completed a 2-year effort to revise the Bethesda System "blue book" atlas and develop a complementary web-based collection of cervical cytology images. The web-based collection of images is housed on the ASC website, which went live on November 5th, 2003; it can be directly accessed at http://www.cytopathology.org/NIH/.

  16. Second edition of 'The Bethesda System for reporting cervical cytology' – atlas, website, and Bethesda interobserver reproducibility project

    OpenAIRE

    Nayar, Ritu; Solomon, Diane

    2004-01-01

    Abstract A joint task force of the American Society of Cytopathology (ASC) and the National Cancer Institute (NCI) recently completed a 2-year effort to revise the Bethesda System "blue book" atlas and develop a complementary web-based collection of cervical cytology images. The web-based collection of images is housed on the ASC website, which went live on November 5th, 2003; it can be directly accessed at http://www.cytopathology.org/NIH/.

  17. Pea early-browning virus -mediated genome editing via the CRISPR/Cas9 system in Nicotiana benthamiana and Arabidopsis

    KAUST Repository

    Ali, Zahir

    2017-10-17

    The clustered regularly interspaced palindromic repeats (CRISPR)/CRISPR-associated (Cas9) system has enabled efficient genome engineering in diverse plant species. However, delivery of genome engineering reagents, such as the single guide RNA (sgRNA), into plant cells remains challenging. Here, we report the engineering of Tobacco rattle virus (TRV) and Pea early browning virus (PEBV) to deliver one or multiple sgRNAs into Nicotiana benthamiana and Arabidopsis thaliana (Col-0) plants that overexpress a nuclear localization signal containing Cas9. Our data showed that TRV and PEBV can deliver sgRNAs into inoculated and systemic leaves, and this resulted in mutagenesis of the targeted genomic loci. Moreover, in N. benthamiana, PEBV-based sgRNA delivery resulted in more targeted mutations than TRV-based delivery. Our data indicate that TRV and PEBV can facilitate plant genome engineering and can be used to produce targeted mutations for functional analysis and other biotechnological applications across diverse plant species.Key message: Delivery of genome engineering reagents into plant cells is challenging and inefficient and this limit the applications of this technology in many plant species. RNA viruses such as TRV and PEBV provide an efficient tool to systemically deliver sgRNAs for targeted genome modification.

  18. CRISPRseek: a bioconductor package to identify target-specific guide RNAs for CRISPR-Cas9 genome-editing systems.

    Directory of Open Access Journals (Sweden)

    Lihua J Zhu

    Full Text Available CRISPR-Cas systems are a diverse family of RNA-protein complexes in bacteria that target foreign DNA sequences for cleavage. Derivatives of these complexes have been engineered to cleave specific target sequences depending on the sequence of a CRISPR-derived guide RNA (gRNA and the source of the Cas9 protein. Important considerations for the design of gRNAs are to maximize aimed activity at the desired target site while minimizing off-target cleavage. Because of the rapid advances in the understanding of existing CRISPR-Cas9-derived RNA-guided nucleases and the development of novel RNA-guided nuclease systems, it is critical to have computational tools that can accommodate a wide range of different parameters for the design of target-specific RNA-guided nuclease systems. We have developed CRISPRseek, a highly flexible, open source software package to identify gRNAs that target a given input sequence while minimizing off-target cleavage at other sites within any selected genome. CRISPRseek will identify potential gRNAs that target a sequence of interest for CRISPR-Cas9 systems from different bacterial species and generate a cleavage score for potential off-target sequences utilizing published or user-supplied weight matrices with position-specific mismatch penalty scores. Identified gRNAs may be further filtered to only include those that occur in paired orientations for increased specificity and/or those that overlap restriction enzyme sites. For applications where gRNAs are desired to discriminate between two related sequences, CRISPRseek can rank gRNAs based on the difference between predicted cleavage scores in each input sequence. CRISPRseek is implemented as a Bioconductor package within the R statistical programming environment, allowing it to be incorporated into computational pipelines to automate the design of gRNAs for target sequences identified in a wide variety of genome-wide analyses. CRISPRseek is available under the GNU General

  19. The 2003 edition of geisa: a spectroscopic database system for the second generation vertical sounders radiance simulation

    Science.gov (United States)

    Jacquinet-Husson, N.; Lmd Team

    The GEISA (Gestion et Etude des Informations Spectroscopiques Atmosphériques: Management and Study of Atmospheric Spectroscopic Information) computer accessible database system, in its former 1997 and 2001 versions, has been updated in 2003 (GEISA-03). It is developed by the ARA (Atmospheric Radiation Analysis) group at LMD (Laboratoire de Météorologie Dynamique, France) since 1974. This early effort implemented the so-called `` line-by-line and layer-by-layer '' approach for forward radiative transfer modelling action. The GEISA 2003 system comprises three databases with their associated management softwares: a database of spectroscopic parameters required to describe adequately the individual spectral lines belonging to 42 molecules (96 isotopic species) and located in a spectral range from the microwave to the limit of the visible. The featured molecules are of interest in studies of the terrestrial as well as the other planetary atmospheres, especially those of the Giant Planets. a database of absorption cross-sections of molecules such as chlorofluorocarbons which exhibit unresolvable spectra. a database of refractive indices of basic atmospheric aerosol components. Illustrations will be given of GEISA-03, data archiving method, contents, management softwares and Web access facilities at: http://ara.lmd.polytechnique.fr The performance of instruments like AIRS (Atmospheric Infrared Sounder; http://www-airs.jpl.nasa.gov) in the USA, and IASI (Infrared Atmospheric Sounding Interferometer; http://smsc.cnes.fr/IASI/index.htm) in Europe, which have a better vertical resolution and accuracy, compared to the presently existing satellite infrared vertical sounders, is directly related to the quality of the spectroscopic parameters of the optically active gases, since these are essential input in the forward models used to simulate recorded radiance spectra. For these upcoming atmospheric sounders, the so-called GEISA/IASI sub-database system has been elaborated

  20. [The scientific videotape with digital processing in surgery. The new opportunities offered surgery for videotape recording and postprocessing with the use of information and digital technologies].

    Science.gov (United States)

    Picardi, N

    1999-01-01

    The facility of the tape recording of a surgical operation, by means of simple manageable apparatuses and at low costs, especially in comparison with the former cinematography, makes it possible for all surgeons to record their own operative activity. Therefore at present the demonstration in video of surgical interventions is very common, but very often the video-tapes show surgical events only in straight chronological succession, as for facts of chronicle news. The simplification of the otherwise sophisticated digital technology of informatics elaboration of images makes more convenient and advisable to assemble the more meaningful sequences for a final product of higher scientific value. The digital technology gives at the best its contribution during the phase of post-production of the video-tape, where the surgeon himself can assemble an end product of more value because aimed to a scientific and rational communication. Thanks to such an elaboration the video-tape can aim not simply to become a good documentary, but also to achieve an educational purpose or becomes a truly scientific film. The initial video will be recorded following a specific project, the script, foreseeing and programming what has to be demonstrated of the surgical operation, establishing therefore in advance the most important steps of the intervention. The sequences recorded will then be assembled not necessarily in a chronological succession but integrating the moving images with static pictures, as drawings, schemes, tables, aside the picture-in picture technique, and besides the vocal descriptive comment. The cinema language has accustomed us to a series of passages among the different sequences as fading, cross-over, "flash-back", aiming to stimulate the psychological associative powers and encourage those critical. The video-tape can be opportunely shortened, paying attention to show only the essential phases of the operation for demonstrate only the core of the problem and utilize

  1. CRISPR-Cas9 gene editing

    NARCIS (Netherlands)

    Oude Blenke, Erik; Evers, Martijn J.W.; Mastrobattista, Enrico; Oost, van der John

    2016-01-01

    The CRISPR-Cas9 gene editing system has taken the biomedical science field by storm, initiating rumors about future Nobel Prizes and heating up a fierce patent war, but also making significant scientific impact. The Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR), together with

  2. Fuel Cell Handbook, Fifth Edition

    Energy Technology Data Exchange (ETDEWEB)

    Energy and Environmental Solutions

    2000-10-31

    Progress continues in fuel cell technology since the previous edition of the Fuel Cell Handbook was published in November 1998. Uppermost, polymer electrolyte fuel cells, molten carbonate fuel cells, and solid oxide fuel cells have been demonstrated at commercial size in power plants. The previously demonstrated phosphoric acid fuel cells have entered the marketplace with more than 220 power plants delivered. Highlighting this commercial entry, the phosphoric acid power plant fleet has demonstrated 95+% availability and several units have passed 40,000 hours of operation. One unit has operated over 49,000 hours. Early expectations of very low emissions and relatively high efficiencies have been met in power plants with each type of fuel cell. Fuel flexibility has been demonstrated using natural gas, propane, landfill gas, anaerobic digester gas, military logistic fuels, and coal gas, greatly expanding market opportunities. Transportation markets worldwide have shown remarkable interest in fuel cells; nearly every major vehicle manufacturer in the U.S., Europe, and the Far East is supporting development. This Handbook provides a foundation in fuel cells for persons wanting a better understanding of the technology, its benefits, and the systems issues that influence its application. Trends in technology are discussed, including next-generation concepts that promise ultrahigh efficiency and low cost, while providing exceptionally clean power plant systems. Section 1 summarizes fuel cell progress since the last edition and includes existing power plant nameplate data. Section 2 addresses the thermodynamics of fuel cells to provide an understanding of fuel cell operation at two levels (basic and advanced). Sections 3 through 8 describe the six major fuel cell types and their performance based on cell operating conditions. Alkaline and intermediate solid state fuel cells were added to this edition of the Handbook. New information indicates that manufacturers have stayed

  3. Fan edits and the legacy of The Phantom Edit

    Directory of Open Access Journals (Sweden)

    Joshua Wille

    2014-09-01

    Full Text Available A fan edit can generally be defined as an alternative version of a film or television text created by a fan. It offers a different viewing experience, much as a song remix offers a different listening experience. The contemporary wave of fan edits has emerged during the remix zeitgeist of digital media and at a time when digital video editing technology has become more affordable and popular. The increasing number of alternative versions of films and the works of revisionist Hollywood filmmakers such as George Lucas have contributed to a greater public understanding of cinema as a fluid medium instead of one that exists in a fixed form. The Phantom Edit (2000, a seminal fan edit based on Lucas's Star Wars Episode I: The Phantom Menace (1999, inspired new ranks of fan editors. However, critics have misunderstood fan edits as merely the work of disgruntled fans. In order to provide a critical and historical basis for studies in fan editing as a creative practice, I examine previous interpretations of fan edits in the context of relevant contemporary works, and I use an annotated chronology of The Phantom Edit to trace its influence on subsequent fan editing communities and uncover their relationship with intellectual property disputes.

  4. Evolution of the deaminase fold and multiple origins of eukaryotic editing and mutagenic nucleic acid deaminases from bacterial toxin systems.

    Science.gov (United States)

    Iyer, Lakshminarayan M; Zhang, Dapeng; Rogozin, Igor B; Aravind, L

    2011-12-01

    The deaminase-like fold includes, in addition to nucleic acid/nucleotide deaminases, several catalytic domains such as the JAB domain, and others involved in nucleotide and ADP-ribose metabolism. Using sensitive sequence and structural comparison methods, we develop a comprehensive natural classification of the deaminase-like fold and show that its ancestral version was likely to operate on nucleotides or nucleic acids. Consequently, we present evidence that a specific group of JAB domains are likely to possess a DNA repair function, distinct from the previously known deubiquitinating peptidase activity. We also identified numerous previously unknown clades of nucleic acid deaminases. Using inference based on contextual information, we suggest that most of these clades are toxin domains of two distinct classes of bacterial toxin systems, namely polymorphic toxins implicated in bacterial interstrain competition and those that target distantly related cells. Genome context information suggests that these toxins might be delivered via diverse secretory systems, such as Type V, Type VI, PVC and a novel PrsW-like intramembrane peptidase-dependent mechanism. We propose that certain deaminase toxins might be deployed by diverse extracellular and intracellular pathogens as also endosymbionts as effectors targeting nucleic acids of host cells. Our analysis suggests that these toxin deaminases have been acquired by eukaryotes on several independent occasions and recruited as organellar or nucleo-cytoplasmic RNA modifiers, operating on tRNAs, mRNAs and short non-coding RNAs, and also as mutators of hyper-variable genes, viruses and selfish elements. This scenario potentially explains the origin of mutagenic AID/APOBEC-like deaminases, including novel versions from Caenorhabditis, Nematostella and diverse algae and a large class of fast-evolving fungal deaminases. These observations greatly expand the distribution of possible unidentified mutagenic processes catalyzed by

  5. UN-EDITED VERSION

    Indian Academy of Sciences (India)

    67

    1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 64. 65. UN-EDITED VERSION ...

  6. Fundamentals of Laparoscopic Surgery manual test: is videotaped performance assessment an option?

    Science.gov (United States)

    Rooney, Deborah M; Brissman, Inga C; Finks, Jonathan F; Gauger, Paul G

    2015-01-01

    In efforts to maintain standards required to evaluate the high-stakes assessment, Society of American Gastrointestinal and Endoscopic Surgeons Fundamentals of Laparoscopic Surgery (FLS) requires all new proctors to complete the train-the-proctor workshop. As the pool of FLS proctors expands, new methods to streamline training and quality assurance programs should be considered. We propose that videotaped performances of the FLS manual tasks may be an alternative proxy to live assessment for training of new proctors, but evaluation of proctors' measures from videotaped FLS performances is required before implementation. A 2-phased research consisted of capturing newly trained proctors' (n = 20) ratings of 3 similar FLS performances across 3 stations-live (Live), videotaped-laparoscopic only (Lap Only) view, and videotaped-dual (Dual) views, during the 2012 Society of American Gastrointestinal and Endoscopic Surgeons FLS train-the-proctor workshop. A month later, a sample of proctors (n = 9) viewed videotaped versions of live FLS performances originally observed during the workshop. Captured metrics include recognition of a predefined critical error for each task (dichotomously scored and summed) and time to complete each of the 5 tasks. Analysis of variance compared the proctors' summed ratings for similar performances across Live, Lap Only, and Dual views, whereas paired t test compared recorded times of Lap Only vs Dual views, Live vs web ratings, and proctors' recorded times across the Lap Only and Dual views. There were neither differences in ratings across Live, Lap Only, and Dual views (p = 0.49) nor in recorded times for performances viewed across Lap Only and Dual viewing options (p = 0.29 and 0.76, respectively). Mean summed performance ratings observed live (4.6) were higher than those observed via the web (4.0), although not significant (p = 0.051). There were no differences in recorded times for identical performances across Live and web observations (p

  7. Linking project-based production and project management temporary systems in multiple contexts: An introduction to the special edition

    Directory of Open Access Journals (Sweden)

    Leon AG Oerlemans

    2014-02-01

    Full Text Available As organisations in more and more industries look for flexible ways of production in the wake of rapidly changing market environments, project-based organising is becoming an increasingly important mode of organisation (Eisenhardt & Tabrizi, 1995. Whereas project-based organisation was traditionally mainly the domain of industries such as film making (Sorenson & Waguespack, 2006, theatre (Goodman & Goodman, 1976, and construction (Gann & Salter, 2000, a project-based mode of operation has recently pervaded many other sectors in the economy, including software development, advertising, biotechnology, consulting, emergency response, fashion, television and complex products and systems (Grabher, 2004; Hobday, 2000. This increasing prevalence is reflected in an exponentially growing body of research (Bakker, 2010, which has made marked progress in areas such as project-based learning (Prencipe & Tell, 2001, project-based innovation (Eisenhardt & Tabrizi, 1995 and project-based careers (Jones, 1996. As a consequence, research on project organisation has moved from being a narrow specialty domain toward being a broad research paradigm, attending to a broad audience in organisation science and beyond (Sydow et al., 2004. In a fairly recent review paper, Bakker (2010 shows that in the period 1988–2008 scholarly attention, as indicated by publications in books and ISI-indexed journals, grew exponentially (see Figure 1. Comparing the number of publications in the period 1988-1998 with the period 1998–2008, he observed an increase of almost 340%.

  8. Efficient genome editing of genes involved in neural crest development using the CRISPR/Cas9 system in Xenopus embryos.

    Science.gov (United States)

    Liu, Zhongzhen; Cheng, Tina Tsz Kwan; Shi, Zhaoying; Liu, Ziran; Lei, Yong; Wang, Chengdong; Shi, Weili; Chen, Xiongfeng; Qi, Xufeng; Cai, Dongqing; Feng, Bo; Deng, Yi; Chen, Yonglong; Zhao, Hui

    2016-01-01

    The RNA guided CRISPR/Cas9 nucleases have been proven to be effective for gene disruption in various animal models including Xenopus tropicalis. The neural crest (NC) is a transient cell population during embryonic development and contributes to a large variety of tissues. Currently, loss-of-function studies on NC development in X. tropicalis are largely based on morpholino antisense oligonucleotide. It is worthwhile establishing targeted gene knockout X. tropicails line using CRISPR/Cas9 system to study NC development. We utilized CRISPR/Cas9 to disrupt genes that are involved in NC formation in X. tropicalis embryos. A single sgRNA and Cas9 mRNA synthesized in vitro, were co-injected into X. tropicalis embryos at one-cell stage to induce single gene disruption. We also induced duplex mutations, large segmental deletions and inversions in X. tropicalis by injecting Cas9 and a pair of sgRNAs. The specificity of CRISPR/Cas9 was assessed in X. tropicalis embryos and the Cas9 nickase was used to reduce the off-target cleavages. Finally, we crossed the G0 mosaic frogs with targeted mutations to wild type frogs and obtained the germline transmission. Total 16 target sites in 15 genes were targeted by CRISPR/Cas9 and resulted in successful indel mutations at 14 loci with disruption efficiencies in a range from 9.3 to 57.8 %. Furthermore, we demonstrated the feasibility of generation of duplex mutations, large segmental deletions and inversions by using Cas9 and a pair of sgRNAs. We observed that CRISPR/Cas9 displays obvious off-target effects at some loci in X. tropicalis embryos. Such off-target cleavages was reduced by using the D10A Cas9 nickase. Finally, the Cas9 induced indel mutations were efficiently passed to G1 offspring. Our study proved that CRISPR/Cas9 could mediate targeted gene mutation in X. tropicalis with high efficiency. This study expands the application of CRISPR/Cas9 platform in X. tropicalis and set a basis for studying NC development using genetic

  9. Genome Editing Gene Therapy for Duchenne Muscular Dystrophy.

    Science.gov (United States)

    Hotta, Akitsu

    2015-09-22

    Duchenne muscular dystrophy (DMD) is a severe genetic disorder caused by loss of function of the dystrophin gene on the X chromosome. Gene augmentation of dystrophin is challenging due to the large size of the dystrophin cDNA. Emerging genome editing technologies, such as TALEN and CRISPR-Cas9 systems, open a new erain the restoration of functional dystrophin and are a hallmark of bona fide gene therapy. In this review, we summarize current genome editing approaches, properties of target cell types for ex vivo gene therapy, and perspectives of in vivo gene therapy including genome editing in human zygotes. Although technical challenges, such as efficacy, accuracy, and delivery of the genome editing components, remain to be further improved, yet genome editing technologies offer a new avenue for the gene therapy of DMD.

  10. Childhood videotaped social and neuromotor precursors of schizophrenia: a prospective investigation

    DEFF Research Database (Denmark)

    Schiffman, Jason; Walker, Elaine; Ekstrøm, Morten

    2004-01-01

    were filmed under standardized conditions while they were eating lunch. The examination was part of a larger study investigating early signs of schizophrenia spectrum disorders. Many of the subjects had a parent with schizophrenia, leaving them at high risk for developing a schizophrenia spectrum...... disorder and children who developed other psychiatric disorders. RESULTS: The findings from this study suggest that the brief videotaped footage of children eating lunch was able to discriminate between the individuals who later developed schizophrenia and those who did not. Specifically...... disorder. In 1991, adult psychiatric outcome data were obtained for 91.3% (N=242). This study systematically analyzed the videotapes to determine whether the children who developed schizophrenia as adults evidenced greater social and/or neuromotor deficits than children who did not develop a psychiatric...

  11. Genome-Wide Analysis of A-to-I RNA Editing.

    Science.gov (United States)

    Savva, Yiannis A; Laurent, Georges St; Reenan, Robert A

    2016-01-01

    Adenosine (A)-to-inosine (I) RNA editing is a fundamental posttranscriptional modification that ensures the deamination of A-to-I in double-stranded (ds) RNA molecules. Intriguingly, the A-to-I RNA editing system is particularly active in the nervous system of higher eukaryotes, altering a plethora of noncoding and coding sequences. Abnormal RNA editing is highly associated with many neurological phenotypes and neurodevelopmental disorders. However, the molecular mechanisms underlying RNA editing-mediated pathogenesis still remain enigmatic and have attracted increasing attention from researchers. Over the last decade, methods available to perform genome-wide transcriptome analysis, have evolved rapidly. Within the RNA editing field researchers have adopted next-generation sequencing technologies to identify RNA-editing sites within genomes and to elucidate the underlying process. However, technical challenges associated with editing site discovery have hindered efforts to uncover comprehensive editing site datasets, resulting in the general perception that the collections of annotated editing sites represent only a small minority of the total number of sites in a given organism, tissue, or cell type of interest. Additionally to doubts about sensitivity, existing RNA-editing site lists often contain high percentages of false positives, leading to uncertainty about their validity and usefulness in downstream studies. An accurate investigation of A-to-I editing requires properly validated datasets of editing sites with demonstrated and transparent levels of sensitivity and specificity. Here, we describe a high signal-to-noise method for RNA-editing site detection using single-molecule sequencing (SMS). With this method, authentic RNA-editing sites may be differentiated from artifacts. Machine learning approaches provide a procedure to improve upon and experimentally validate sequencing outcomes through use of computationally predicted, iterative feedback loops

  12. Revising and editing for translators

    CERN Document Server

    Mossop, Brian

    2014-01-01

    Revising and Editing for Translators provides guidance and learning materials for translation students learning to edit texts written by others, and professional translators wishing to improve their self-revision ability or learning to revise the work of others. Editing is understood as making corrections and improvements to texts, with particular attention to tailoring them to the given readership. Revising is this same task applied to draft translations. The linguistic work of editors and revisers is related to the professional situations in which they work. Mossop offers in-depth coverage of a wide range of topics, including copyediting, style editing, structural editing, checking for consistency, revising procedures and principles, and translation quality assessment. This third edition provides extended coverage of computer aids for revisers, and of the different degrees of revision suited to different texts. The inclusion of suggested activities and exercises, numerous real-world examples, a proposed gra...

  13. Pain, role play, and videotape. Pain management staff development in a community hospital.

    Science.gov (United States)

    Daroszewski, E B; Meehan, D A

    1997-01-01

    Videotaped role play was an effective staff development strategy used as an initial exercise in a five-part class to update the pain management skills of experienced nurses. It engaged the participants in learning and stimulated discussion and provided concrete feedback of current clinical practices for comparison with the Agency for Health Care Policy and Research pain management guidelines (Acute Pain Management Guideline Panel, 1992).

  14. Genome Editing in Sugarcane: Challenges ahead

    Directory of Open Access Journals (Sweden)

    Chakravarthi Mohan

    2016-10-01

    Full Text Available Genome editing opens new and unique opportunities for researchers to enhance crop production. Until 2013, the zinc finger nucleases (ZFNs and transcription activator-like effector nucleases (TALENs were the key tools used for genome editing applications. The advent of RNA-guided engineered nucleases - the type II clustered regularly interspaced short palindromic repeat (CRISPR/Cas9 (CRISPR-associated system from Streptococcus pyogenes holds great potential since it is simple, effective and more versatile than ZFNs and TALENs. CRISPR/Cas9 system has already been successfully employed in several crop plants. Use of these techniques is in its infant stage in sugarcane. Jung and Altpeter (2016 have reported TALEN mediated approach for the first time to reduce lignin content in sugarcane to make it amenable for biofuel production. This is so far the only report describing genome editing in sugarcane. Large genome size, polyploidy, low transformation efficiency, transgene silencing and lack of high throughput screening techniques are certainly great challenges for genome editing in sugarcane which would be discussed in detail in this review.

  15. Compressed Natural Gas Installation. A Video-Based Training Program for Vehicle Conversion. Instructor's Edition.

    Science.gov (United States)

    Oklahoma State Dept. of Vocational and Technical Education, Stillwater. Curriculum and Instructional Materials Center.

    This instructor's guide contains the materials required to teach four competency-based course units of instruction in installing compressed natural gas (CNG) systems in motor vehicles. It is designed to accompany an instructional videotape (not included) on CNG installation. The following competencies are covered in the four instructional units:…

  16. REDIdb: the RNA editing database.

    Science.gov (United States)

    Picardi, Ernesto; Regina, Teresa Maria Rosaria; Brennicke, Axel; Quagliariello, Carla

    2007-01-01

    The RNA Editing Database (REDIdb) is an interactive, web-based database created and designed with the aim to allocate RNA editing events such as substitutions, insertions and deletions occurring in a wide range of organisms. The database contains both fully and partially sequenced DNA molecules for which editing information is available either by experimental inspection (in vitro) or by computational detection (in silico). Each record of REDIdb is organized in a specific flat-file containing a description of the main characteristics of the entry, a feature table with the editing events and related details and a sequence zone with both the genomic sequence and the corresponding edited transcript. REDIdb is a relational database in which the browsing and identification of editing sites has been simplified by means of two facilities to either graphically display genomic or cDNA sequences or to show the corresponding alignment. In both cases, all editing sites are highlighted in colour and their relative positions are detailed by mousing over. New editing positions can be directly submitted to REDIdb after a user-specific registration to obtain authorized secure access. This first version of REDIdb database stores 9964 editing events and can be freely queried at http://biologia.unical.it/py_script/search.html.

  17. The universe, life, and intelligence (Sixth enlarged edition)

    Science.gov (United States)

    Shklovskii, Iosif Samuilovich

    This classic work examines the possibility of the existence of life (including intelligent life) on other planetary systems. This enlarged edition includes essays on the search for extraterrestrial civilizations and the possibility of communication with intelligent beings on other planets.

  18. Generation of gene edited birds in one generation using sperm transfection assisted gene editing (STAGE).

    Science.gov (United States)

    Cooper, Caitlin A; Challagulla, Arjun; Jenkins, Kristie A; Wise, Terry G; O'Neil, Terri E; Morris, Kirsten R; Tizard, Mark L; Doran, Timothy J

    2017-06-01

    Generating transgenic and gene edited mammals involves in vitro manipulation of oocytes or single cell embryos. Due to the comparative inaccessibility of avian oocytes and single cell embryos, novel protocols have been developed to produce transgenic and gene edited birds. While these protocols are relatively efficient, they involve two generation intervals before reaching complete somatic and germline expressing transgenic or gene edited birds. Most of this work has been done with chickens, and many protocols require in vitro culturing of primordial germ cells (PGCs). However, for many other bird species no methodology for long term culture of PGCs exists. Developing methodologies to produce germline transgenic or gene edited birds in the first generation would save significant amounts of time and resource. Furthermore, developing protocols that can be readily adapted to a wide variety of avian species would open up new research opportunities. Here we report a method using sperm as a delivery mechanism for gene editing vectors which we call sperm transfection assisted gene editing (STAGE). We have successfully used this method to generate GFP knockout embryos and chickens, as well as generate embryos with mutations in the doublesex and mab-3 related transcription factor 1 (DMRT1) gene using the CRISPR/Cas9 system. The efficiency of the method varies from as low as 0% to as high as 26% with multiple factors such as CRISPR guide efficiency and mRNA stability likely impacting the outcome. This straightforward methodology could simplify gene editing in many bird species including those for which no methodology currently exists.

  19. Nanoparticles for Site Specific Genome Editing

    Science.gov (United States)

    McNeer, Nicole Ali

    Triplex-forming peptide nucleic acids (PNAs) can be used to coordinate the recombination of short 50-60 by "donor DNA" fragments into genomic DNA, resulting in site-specific correction of genetic mutations or the introduction of advantageous genetic modifications. Site-specific gene editing in hematopoietic stem and progenitor cells (HSPCs) could result in treatment or cure of inherited disorders of the blood such as beta-thalassemia. Gene editing in HSPCs and differentiated T cells could help combat HIV/AIDs by modifying receptors, such as CCR5, necessary for R5-tropic HIV entry. However, translation of genome modification technologies to clinical practice is limited by challenges in intracellular delivery, especially in difficult-to-transfect hematolymphoid cells. In vivo gene editing could also provide novel treatment for systemic monogenic disorders such as cystic fibrosis, an autosomal recessive disorder caused by mutations in the cystic fibrosis transmembrane receptor. Here, we have engineered biodegradable nanoparticles to deliver oligonucleotides for site-specific genome editing of disease-relevant genes in human cells, with high efficiency, low toxicity, and editing of clinically relevant cell types. We designed nanoparticles to edit the human beta-globin and CCR5 genes in hematopoietic cells. We show that poly(lactic-co-glycolic acid) (PLGA) nanoparticles can delivery PNA and donor DNA for site-specific gene modification in human hematopoietic cells in vitro and in vivo in NOD-scid IL2rgammanull mice. Nanoparticles delivered by tail vein localized to hematopoietic compartments in the spleen and bone marrow of humanized mice, resulting in modification of the beta-globin and CCR5 genes. Modification frequencies ranged from 0.005 to 20% of cells depending on the organ and cell type, without detectable toxicity. This project developed highly versatile methods for delivery of therapeutics to hematolymphoid cells and hematopoietic stem cells, and will help to

  20. Online Automatic Post-Editing across Domains

    OpenAIRE

    Chatterjee, Rajen; Gebremelak, Gebremedhen; Negri, Matteo; Turchi, Marco

    2017-01-01

    Recent advances in automatic post-editing (APE) have shown that it is possible to automatically correct systematic errors made by machine translation systems. However, most of the current APE techniques have only been tested in controlled batch environments, where training and test data are sampled from the same distribution and the training set is fully available. In this paper, we propose an online APE system based on an instance selection mechanism that is able to efficiently work with a s...

  1. Genome editing in pluripotent stem cells: research and therapeutic applications

    Energy Technology Data Exchange (ETDEWEB)

    Deleidi, Michela, E-mail: michela.deleidi@dzne.de [German Center for Neurodegenerative Diseases (DZNE) Tübingen within the Helmholtz Association, Tübingen (Germany); Hertie Institute for Clinical Brain Research, University of Tübingen (Germany); Yu, Cong [Department of Microbiology and Immunology, School of Medicine and Biomedical Sciences, University at Buffalo, New York (United States)

    2016-05-06

    Recent progress in human pluripotent stem cell (hPSC) and genome editing technologies has opened up new avenues for the investigation of human biology in health and disease as well as the development of therapeutic applications. Gene editing approaches with programmable nucleases have been successfully established in hPSCs and applied to study gene function, develop novel animal models and perform genetic and chemical screens. Several studies now show the successful editing of disease-linked alleles in somatic and patient-derived induced pluripotent stem cells (iPSCs) as well as in animal models. Importantly, initial clinical trials have shown the safety of programmable nucleases for ex vivo somatic gene therapy. In this context, the unlimited proliferation potential and the pluripotent properties of iPSCs may offer advantages for gene targeting approaches. However, many technical and safety issues still need to be addressed before genome-edited iPSCs are translated into the clinical setting. Here, we provide an overview of the available genome editing systems and discuss opportunities and perspectives for their application in basic research and clinical practice, with a particular focus on hPSC based research and gene therapy approaches. Finally, we discuss recent research on human germline genome editing and its social and ethical implications. - Highlights: • Programmable nucleases have proven efficient and specific for genome editing in human pluripotent stem cells (hPSCs). • Genome edited hPSCs can be employed to study gene function in health and disease as well as drug and chemical screens. • Genome edited hPSCs hold great promise for ex vivo gene therapy approaches. • Technical and safety issues should be first addressed to advance the clinical use of gene-edited hPSCs.

  2. Thermodynamics of Fluids Under Flow Second Edition

    CERN Document Server

    Jou, David; Criado-Sancho, Manuel

    2011-01-01

    This is the second edition of the book “Thermodynamics of Fluids under Flow,” which was published in 2000 and has now been corrected, expanded and updated. This is a companion book to our other title Extended irreversible thermodynamics (D. Jou, J. Casas-Vázquez and G. Lebon, Springer, 4th edition 2010), and of the textbook Understanding non-equilibrium thermodynamics (G. Lebon, D. Jou and J. Casas-Vázquez, Springer, 2008. The present book is more specialized than its counterpart, as it focuses its attention on the non-equilibrium thermodynamics of flowing fluids, incorporating non-trivial thermodynamic contributions of the flow, going beyond local equilibrium theories, i.e., including the effects of internal variables and of external forcing due to the flow. Whereas the book's first edition was much more focused on polymer solutions, with brief glimpses into ideal and real gases, the present edition covers a much wider variety of systems, such as: diluted and concentrated polymer solutions, polymer ble...

  3. Edit propagation using geometric relationship functions

    KAUST Repository

    Guerrero, Paul

    2014-03-01

    We propose a method for propagating edit operations in 2D vector graphics, based on geometric relationship functions. These functions quantify the geometric relationship of a point to a polygon, such as the distance to the boundary or the direction to the closest corner vertex. The level sets of the relationship functions describe points with the same relationship to a polygon. For a given query point, we first determine a set of relationships to local features, construct all level sets for these relationships, and accumulate them. The maxima of the resulting distribution are points with similar geometric relationships. We show extensions to handle mirror symmetries, and discuss the use of relationship functions as local coordinate systems. Our method can be applied, for example, to interactive floorplan editing, and it is especially useful for large layouts, where individual edits would be cumbersome. We demonstrate populating 2D layouts with tens to hundreds of objects by propagating relatively few edit operations. © 2014 ACM 0730-0301/2014/03- ART15 $15.00.

  4. Engineered Viruses as Genome Editing Devices.

    Science.gov (United States)

    Chen, Xiaoyu; Gonçalves, Manuel A F V

    2016-03-01

    Genome editing based on sequence-specific designer nucleases, also known as programmable nucleases, seeks to modify in a targeted and precise manner the genetic information content of living cells. Delivering into cells designer nucleases alone or together with donor DNA templates, which serve as surrogate homologous recombination (HR) substrates, can result in gene knockouts or gene knock-ins, respectively. As engineered replication-defective viruses, viral vectors are having an increasingly important role as delivery vehicles for donor DNA templates and designer nucleases, namely, zinc-finger nucleases (ZFNs), transcription activator-like effector nucleases (TALENs) and clustered, regularly interspaced, short palindromic repeats (CRISPR)-associated Cas9 (CRISPR-Cas9) nucleases, also known as RNA-guided nucleases (RGNs). We review this dual role played by engineered viral particles on genome editing while focusing on their main scaffolds, consisting of lentiviruses, adeno-associated viruses, and adenoviruses. In addition, the coverage of the growing body of research on the repurposing of viral vectors as delivery systems for genome editing tools is complemented with information regarding their main characteristics, pros, and cons. Finally, this information is framed by a concise description of the chief principles, tools, and applications of the genome editing field as a whole.

  5. Highly efficient biallelic genome editing of human ES/iPS cells using a CRISPR/Cas9 or TALEN system.

    Science.gov (United States)

    Takayama, Kazuo; Igai, Keisuke; Hagihara, Yasuko; Hashimoto, Rina; Hanawa, Morifumi; Sakuma, Tetsushi; Tachibana, Masashi; Sakurai, Fuminori; Yamamoto, Takashi; Mizuguchi, Hiroyuki

    2017-05-19

    Genome editing research of human ES/iPS cells has been accelerated by clustered regularly interspaced short palindromic repeats/CRISPR-associated 9 (CRISPR/Cas9) and transcription activator-like effector nucleases (TALEN) technologies. However, the efficiency of biallelic genetic engineering in transcriptionally inactive genes is still low, unlike that in transcriptionally active genes. To enhance the biallelic homologous recombination efficiency in human ES/iPS cells, we performed screenings of accessorial genes and compounds. We found that RAD51 overexpression and valproic acid treatment enhanced biallelic-targeting efficiency in human ES/iPS cells regardless of the transcriptional activity of the targeted locus. Importantly, RAD51 overexpression and valproic acid treatment synergistically increased the biallelic homologous recombination efficiency. Our findings would facilitate genome editing study using human ES/iPS cells. © The Author(s) 2017. Published by Oxford University Press on behalf of Nucleic Acids Research.

  6. Highly efficient biallelic genome editing of human ES/iPS cells using a CRISPR/Cas9 or TALEN system

    Science.gov (United States)

    Takayama, Kazuo; Igai, Keisuke; Hagihara, Yasuko; Hashimoto, Rina; Hanawa, Morifumi; Sakuma, Tetsushi; Tachibana, Masashi; Sakurai, Fuminori; Yamamoto, Takashi

    2017-01-01

    Abstract Genome editing research of human ES/iPS cells has been accelerated by clustered regularly interspaced short palindromic repeats/CRISPR-associated 9 (CRISPR/Cas9) and transcription activator-like effector nucleases (TALEN) technologies. However, the efficiency of biallelic genetic engineering in transcriptionally inactive genes is still low, unlike that in transcriptionally active genes. To enhance the biallelic homologous recombination efficiency in human ES/iPS cells, we performed screenings of accessorial genes and compounds. We found that RAD51 overexpression and valproic acid treatment enhanced biallelic-targeting efficiency in human ES/iPS cells regardless of the transcriptional activity of the targeted locus. Importantly, RAD51 overexpression and valproic acid treatment synergistically increased the biallelic homologous recombination efficiency. Our findings would facilitate genome editing study using human ES/iPS cells. PMID:28334759

  7. With this Special Edition

    Directory of Open Access Journals (Sweden)

    Oscar Antonio Martínez Molina

    2017-02-01

    Full Text Available With this Special Edition, the refereed Scientific Magazine, published in February 2017, presents a nourished and multidisciplinary theme, from the relationship of Environmental Education, in this ecological sharing man-environment; the social responsibility from the Management environment and the motivational values ​​conducive to the teaching performance in the different educational levels. Twenty-five (25 articles, generated from research production in university environments at the International level, are a signature of the quality of articles / essays presented in this Special Edition. Several reasons motivate the literary pen of our authors, adjusting to the rhythm of the times and the use of new technologies; and in correspondence with the care of the environment, this way of disseminating and making visible the scientific contents of humanistic and social court, support the care and protection of the forests, being an online production, in the Cloud. Thanks to the support of the Instituto Internacional de Investigación y Desarrollo Tecnológico Educativo INDTEC, CA, Scientific Magazine has been able to develop from the cooperative work of the people who compose its different committees: Editorial Academic Committee, Academic Scientific Committee and the Arbitrators in the review and valuation of the quality of the articles. With these assets, the Scientific Magazine, opening to the general public and especially to the academic new intellectual horizons.

  8. Natural Hazards, Second Edition

    Science.gov (United States)

    Rouhban, Badaoui

    Natural disaster loss is on the rise, and the vulnerability of the human and physical environment to the violent forces of nature is increasing. In many parts of the world, disasters caused by natural hazards such as earthquakes, floods, landslides, drought, wildfires, intense windstorms, tsunami, and volcanic eruptions have caused the loss of human lives, injury, homelessness, and the destruction of economic and social infrastructure. Over the last few years, there has been an increase in the occurrence, severity, and intensity of disasters, culminating with the devastating tsunami of 26 December 2004 in South East Asia.Natural hazards are often unexpected or uncontrollable natural events of varying magnitude. Understanding their mechanisms and assessing their distribution in time and space are necessary for refining risk mitigation measures. This second edition of Natural Hazards, (following a first edition published in 1991 by Cambridge University Press), written by Edward Bryant, associate dean of science at Wollongong University, Australia, grapples with this crucial issue, aspects of hazard prediction, and other issues. The book presents a comprehensive analysis of different categories of hazards of climatic and geological origin.

  9. Annotation in Digital Scholarly Editions

    NARCIS (Netherlands)

    Boot, P.; Haentjens Dekker, R.

    2016-01-01

    Annotation in digital scholarly editions (of historical documents, literary works, letters, etc.) has long been recognized as an important desideratum, but has also proven to be an elusive ideal. In so far as annotation functionality is available, it is usually developed for a single edition and

  10. Fundamentals of Welding. Teacher Edition [and] Student Edition [and] Student Workbook. Second Edition.

    Science.gov (United States)

    Fortney, Clarence; Gregory, Mike; New, Larry

    Teacher and student editions and a student workbook for fundamentals of welding comprise the first of six in a series of competency-based instructional materials for welding programs. Introductory pages in the teacher edition are training and competency profile, instructional/task analysis, basic skills icons and classifications, basic skills…

  11. Oxyacetylene Welding and Oxyfuel Cutting. Third Edition. Teacher Edition [and] Student Edition [and] Student Workbook.

    Science.gov (United States)

    Knapp, John; Harper, Eddie

    This Oklahoma curriculum guide, which includes a teacher edition, a student edition, and a student workbook, provides three units for a course on oxyacetylene welding, oxyfuel cutting, and cutting done with alternative fuels such as MAPP, propane, and natural gas. The three units are: "Oxyacetylene Welding"; "Oxyfuel Cutting";…

  12. Residential and Light Commercial HVAC. Teacher Edition and Student Edition. Second Edition.

    Science.gov (United States)

    Stephenson, David

    This package contains teacher and student editions of a residential and light commercial heating, ventilation, and air conditioning (HVAC) course of study. The teacher edition contains information on the following: using the publication; national competencies; competency profile; related academic and workplace skills list; tools, equipment, and…

  13. Tool steels. 5. edition

    Energy Technology Data Exchange (ETDEWEB)

    Roberts, G.; Krauss, G.; Kennedy, R.

    1998-12-31

    The revision of this authoritative work contains a significant amount of new information from the past nearly two decades presented in an entirely new outline, making this a must have reference for engineers involved in tool-steel production, as well as in the selection and use of tool steels in metalworking and other materials manufacturing industries. The chapter on tool-steel manufacturing includes new production processes, such as electroslag refining, vacuum arc remelting, spray deposition processes (Osprey and centrifugal spray), and powder metal processing. The seven chapters covering tool-steel types in the 4th Edition have been expanded to 11 chapters covering nine main groups of tool steels as well as other types of ultrahigh strength steels sometimes used for tooling. Each chapter discusses in detail processing, composition, and applications specific to the particular group. In addition, two chapters have been added covering surface modification and trouble shooting production and performance problems.

  14. Practical Guide to Designing Comprehensive Teacher Evaluation Systems: A Tool to Assist in the Development of Teacher Evaluation Systems. Revised Edition

    Science.gov (United States)

    Goe, Laura; Holdheide, Lynn; Miller, Tricia

    2014-01-01

    Across the nation, states and districts are in the process of building better teacher evaluation systems that not only identify highly effective teachers but also systematically provide data and feedback that can be used to improve teacher practice. The "Practical Guide to Designing Comprehensive Teacher Evaluation Systems" is a tool…

  15. Selective access and editing in a database

    Science.gov (United States)

    Maluf, David A. (Inventor); Gawdiak, Yuri O. (Inventor)

    2010-01-01

    Method and system for providing selective access to different portions of a database by different subgroups of database users. Where N users are involved, up to 2.sup.N-1 distinguishable access subgroups in a group space can be formed, where no two access subgroups have the same members. Two or more members of a given access subgroup can edit, substantially simultaneously, a document accessible to each member.

  16. CRISPR-Cas9: from Genome Editing to Cancer Research

    OpenAIRE

    Chen, Si; Sun, Heng; Miao, Kai; Deng, Chu-Xia

    2016-01-01

    Cancer development is a multistep process triggered by innate and acquired mutations, which cause the functional abnormality and determine the initiation and progression of tumorigenesis. Gene editing is a widely used engineering tool for generating mutations that enhance tumorigenesis. The recent developed clustered regularly interspaced short palindromic repeats-CRISPR-associated 9 (CRISPR-Cas9) system renews the genome editing approach into a more convenient and efficient way. By rapidly i...

  17. Genome Editing Gene Therapy for Duchenne Muscular Dystrophy

    OpenAIRE

    Hotta, Akitsu

    2015-01-01

    Duchenne muscular dystrophy (DMD) is a severe genetic disorder caused by loss of function of the dystrophin gene on the X chromosome. Gene augmentation of dystrophin is challenging due to the large size of the dystrophin cDNA. Emerging genome editing technologies, such as TALEN and CRISPR-Cas9 systems, open a new erain the restoration of functional dystrophin and are a hallmark of bona fide gene therapy. In this review, we summarize current genome editing approaches, properties of target cell...

  18. [The Washington summit: orange light for genome editing?].

    Science.gov (United States)

    Jordan, Bertrand

    2016-02-01

    The summit organised in early December 2015 considered in depth the various issues (technical, scientific, societal and ethical) raised by the prospect of genome editing using the extremely effective CRISPR system. Germline editing (for therapeutic or "enhancement" purposes) was stated to be irresponsible under current conditions, but the possibility that this could be considered in the future was not excluded; a mechanism for monitoring progress and possibly revising recommendations was proposed. © 2016 médecine/sciences – Inserm.

  19. Benchmarking Non-Hardware Balance-of-System (Soft) Costs for U.S. Photovoltaic Systems, Using a Bottom-Up Approach and Installer Survey - Second Edition

    Energy Technology Data Exchange (ETDEWEB)

    Friedman, B.; Ardani, K.; Feldman, D.; Citron, R.; Margolis, R.; Zuboy, J.

    2013-10-01

    This report presents results from the second U.S. Department of Energy (DOE) sponsored, bottom-up data-collection and analysis of non-hardware balance-of-system costs -- often referred to as 'business process' or 'soft' costs -- for U.S. residential and commercial photovoltaic (PV) systems. In service to DOE's SunShot Initiative, annual expenditure and labor-hour-productivity data are analyzed to benchmark 2012 soft costs related to (1) customer acquisition and system design (2) permitting, inspection, and interconnection (PII). We also include an in-depth analysis of costs related to financing, overhead, and profit. Soft costs are both a major challenge and a major opportunity for reducing PV system prices and stimulating SunShot-level PV deployment in the United States. The data and analysis in this series of benchmarking reports are a step toward the more detailed understanding of PV soft costs required to track and accelerate these price reductions.

  20. Interactive Translation Prediction versus Conventional Post-editing in Practice

    DEFF Research Database (Denmark)

    Sanchis-Trilles, German; Alabau, Vicent; Buck, Christian

    2014-01-01

    We conducted a field trial in computer-assisted professional translation to compare Interactive Translation Prediction (ITP) against conventional post- editing (PE) of machine translation (MT) output. In contrast to the conventional PE set-up, where an MT system first produces a static translation...... hypothesis that is then edited by a professional translator (hence \\post-editing"), ITP constantly updates the translation hypothesis in real time in response to user edits. Our study involved nine professional translators and four reviewers working with the web-based CasMaCat workbench. Various new...... interactive features aiming to assist the post-editor were also tested in this trial. Our results show that even with little training, ITP can be as productive as conventional PE in terms of the total time required to produce the final translation. Moreover, in the ITP setting translators require fewer key...

  1. Genome editing: a robust technology for human stem cells.

    Science.gov (United States)

    Chandrasekaran, Arun Pandian; Song, Minjung; Ramakrishna, Suresh

    2017-09-01

    Human pluripotent stem cells comprise induced pluripotent and embryonic stem cells, which have tremendous potential for biological and therapeutic applications. The development of efficient technologies for the targeted genome alteration of stem cells in disease models is a prerequisite for utilizing stem cells to their full potential. Genome editing of stem cells is possible with the help of synthetic nucleases that facilitate site-specific modification of a gene of interest. Recent advances in genome editing techniques have improved the efficiency and speed of the development of stem cells for human disease models. Zinc finger nucleases, transcription activator-like effector nucleases, and clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated system are powerful tools for editing DNA at specific loci. Here, we discuss recent technological advances in genome editing with site-specific nucleases in human stem cells.

  2. Genome editing using Cas9 nickases.

    Science.gov (United States)

    Trevino, Alexandro E; Zhang, Feng

    2014-01-01

    The RNA-guided, sequence-specific endonuclease Cas9 has been widely adopted as genome engineering tool due to its efficiency and ease of use. Derived from the microbial CRISPR (clustered regularly interspaced short palindromic repeat) type II adaptive immune system, Cas9 has now been successfully engineered for genome editing applications in a variety of animal and plant species. To reduce potential off-target mutagenesis by wild-type Cas9, homology- and structure-guided mutagenesis of Streptococcus pyogenes Cas9 catalytic domains has produced "nicking" enzymes (Cas9n) capable of inducing single-strand nicks rather than double-strand breaks. Since nicks are generally repaired with high fidelity in eukaryotic cells, Cas9n can be leveraged to mediate highly specific genome editing, either via nonhomologous end-joining or homology-directed repair. Here we describe the preparation, testing, and application of Cas9n reagents for precision mammalian genome engineering.

  3. Marine botany. Second edition

    Energy Technology Data Exchange (ETDEWEB)

    Dawes, C.J. [Univ. of South Florida, Tampa, FL (United States)

    1998-12-01

    Marine plants are a diverse group that include unicellular algae, seaweeds, seagrasses, salt marshes, and mangrove forests. They carry out a variety of ecological functions and serve as the primary producers in coastal wetlands and oceanic waters. The theme that connects such a wide variety of plants is their ecology, which was also emphasized in the 1981 edition. The goal of this revision is to present taxonomic, physiological, chemical, and ecological aspects of marine plants, their adaptations, and how abiotic and biotic factors interact in their communities. The data are presented in a concise, comparative manner in order to identify similarities and differences between communities such as salt marsh and mangroves or subtidal seaweeds and seagrasses. To accomplish this, the text is organized into five chapters that introduce the marine habitats, consider abiotic and biotic factors, and anthropogenic influences on the communities followed by seven chapters that deal with microalgae, seaweeds, salt marshes, mangroves, seagrasses, and coral reefs. Two appendixes are included; one presents simple field techniques and the other is a summary of seaweed uses.

  4. Posttranscriptional recoding by RNA editing.

    Science.gov (United States)

    Maas, Stefan

    2012-01-01

    The posttranscriptional recoding of nuclear RNA transcripts has emerged as an important regulatory mechanism during eukaryotic gene expression. In particular the deamination of adenosine to inosine (interpreted by the translational machinery as a guanosine) is a frequent event that can recode the meaning of amino acid codons in translated exons, lead to structural changes in the RNA fold, or may affect splice consensus or regulatory sequence sites in noncoding exons or introns and modulate the biogenesis of small RNAs. The molecular mechanism of how the RNA editing machinery and its substrates recognize and interact with each other is not understood well enough to allow for the ab initio delineation of bona fide RNA editing sites. However, progress in the identification of various physiological modification sites and their characterization has given important insights regarding molecular features and events critical for productive RNA editing reactions. In addition, structural studies using components of the RNA editing machinery and together with editing competent substrate molecules have provided information on the chemical mechanism of adenosine deamination within the context of RNA molecules. Here, I give an overview of the process of adenosine deamination RNA editing and describe its relationship to other RNA processing events and its currently established roles in gene regulation. Copyright © 2012 Elsevier Inc. All rights reserved.

  5. Editörlerden

    Directory of Open Access Journals (Sweden)

    Sibel Sakarya

    2015-12-01

    Full Text Available Sevgili okurlar2015 yılının bu son sayısında size dergimizle ilgili bazı özet bilgileri vermek ve son gelişmeleri paylaşmak istiyoruz. Türkiye Halk Sağlığı Dergisinde 2015 yılı içinde, 14 orijinal makale, 1 meta analiz ve 2 kısa rapor olmak üzere toplam 17 araştırma makalesi yayımlanmıştır. Ayrıca 3 editöre mektup, 1 tartışma ve 1 alandan notlar yazısını sizlere ulaştırdık. Daha önceki yıllarla karşılaştırdığımızda yayımlanan yazı sayısı açısından değil ama yazıların niteliği olarak bir ilerleme olduğunu söyleyebiliriz.  Yazıların niteliğinin artırılması ile ilgili çabalarımız sürmekte. Bu amaçla dergimiz editörleri 18.Ulusal Halk Sağlığı Kongresi’nde yazarlık ile ilgili bir kurs düzenlediler. Diğer taraftan dergimizin kurumsal altyapısında önemli değişiklikler yapıldı. Derginin görünürlüğünü ve standartlarını yükseltmek için uluslararası dizinlere girme çabalarını sürdürüyoruz. İlk olarak “Açık Erişim Dergileri Dizini  (DOAJ- The Directory of Open Access Journals başvuru hazırlıklarımız tamamlandı. DOAJ 10,000 den fazla açık erişimli hakemli dergilerin dizinini oluşturan, merkezi İsveç-Lund üniversitesinde olan bir kurum. Bu üyeliğin Dergimizin görünürlüğünü artıracağını ve dış denetimler için bir referans olacağını düşünüyoruz. İkinci olarak çok önem verdiğimiz etik konusunda kurumsallaşmamızı sağlayacak “Yayın Etiği Komitesi” (Committee on Publication Ethics- COPE başvurusu için çalışmalar tamamlandı. COPE hakemli dergi editörleri ve yayımcılarının oluşturduğu bir komite ve böylelikle yayımcılıkla ilgili uluslararası standartları izleyeceğimizi garanti altına almış oluyoruz. COPE kuralları aynı zamanda “Dünya Tıbbi Editörler Birliği (WAME, DOAJ standartları ile de birlikte değerlendirilen bir kurum.Ayrıca  Kasım 2015 ayı itibari ile dergimizin

  6. O uso de filmagem em pesquisas qualitativas El uso de la filmación en investigaciones cualitativas The use of videotaping in qualitative research

    Directory of Open Access Journals (Sweden)

    Eliana Moreira Pinheiro

    2005-10-01

    soluciones se deben basar en acuerdos entre los investigadores y los participantes.Considering advancements in data collection methods, we explore the use of videotaping in qualitative research. This bibliographical study aims at developing reflections on the possibilities of using videotapes in research and at providing material to researchers. The video is used as an instrument of data collection and generation. We mention technical aspects, such as the utilization of a mobile or fixed camera. By means of the latter, the authors report their experience, emphasizing compliance with the neutrality principle and the possibility of editing the images obtained as a means of generating new data. The authors highlight that it was possible to detect contradictions between discourse and behavior through the use of videotaping and interviews. The authors also discuss the ethical principles set by CNS Resolution 196/96 and other ethical questions, whose solutions should be based on the agreement between researchers and subjects.

  7. [The application of CRISPR/Cas9 genome editing technology in cancer research].

    Science.gov (United States)

    Wang, Da-yong; Ma, Ning; Hui, Yang; Gao, Xu

    2016-01-01

    The CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats/CRISPR-associated protein-9 nuclease) genome editing technology has become more and more popular in gene editing because of its simple design and easy operation. Using the CRISPR/Cas9 system, researchers can perform site-directed genome modification at the base level. Moreover, it has been widely used in genome editing in multiple species and related cancer research. In this review, we summarize the application of the CRISPR/Cas9 system in cancer research based on the latest research progresses as well as our understanding of cancer research and genome editing techniques.

  8. Technology Roadmap: Wind Energy. 2013 edition

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-07-01

    The IEA Wind Power Technology Roadmap 2013 Edition recognises the very significant progress made since the first edition was published in 2009. The technology continues to improve rapidly, and costs of generation from land-based wind installations continue to fall. Wind power is now being deployed in countries with good resources without any dedicated financial incentives. The 2013 Edition targets an increased share (15% to 18%) of global electricity to be provided by wind power in 2050, compared to 12% in the original roadmap of 2009. However, increasing levels of low-cost wind still require predictable, supportive regulatory environments and appropriate market designs. The challenges of integrating higher levels of variable wind power into the grid need to be addressed. For offshore wind, much remains to be done to develop appropriate large-scale systems and to reduce costs. The 2013 Wind Power Roadmap also provides updated analysis on the barriers that exist for the technology and suggests ways to address them, including legal and regulatory recommendations.

  9. ADAR RNA editing below the backbone.

    Science.gov (United States)

    Keegan, Liam; Khan, Anzer; Vukic, Dragana; O'Connell, Mary

    2017-09-01

    ADAR RNA editing enzymes (adenosine deaminases acting on RNA) that convert adenosine bases to inosines were first identified biochemically 30 years ago. Since then, studies on ADARs in genetic model organisms, and evolutionary comparisons between them, continue to reveal a surprising range of pleiotropic biological effects of ADARs. This review focuses on Drosophila melanogaster, which has a single Adar gene encoding a homolog of vertebrate ADAR2 that site-specifically edits hundreds of transcripts to change individual codons in ion channel subunits and membrane and cytoskeletal proteins. Drosophila ADAR is involved in the control of neuronal excitability and neurodegeneration and, intriguingly, in the control of neuronal plasticity and sleep. Drosophila ADAR also interacts strongly with RNA interference, a key antiviral defense mechanism in invertebrates. Recent crystal structures of human ADAR2 deaminase domain-RNA complexes help to interpret available information on Drosophila ADAR isoforms and on the evolution of ADARs from tRNA deaminase ADAT proteins. ADAR RNA editing is a paradigm for the now rapidly expanding range of RNA modifications in mRNAs and ncRNAs. Even with recent progress, much remains to be understood about these groundbreaking ADAR RNA modification systems. © 2017 Keegan et al.; Published by Cold Spring Harbor Laboratory Press for the RNA Society.

  10. Optimized guide RNA structure for genome editing via Cas9.

    Science.gov (United States)

    Xu, Jianyong; Lian, Wei; Jia, Yuning; Li, Lingyun; Huang, Zhong

    2017-11-07

    The genome editing tool Cas9-gRNA (guide RNA) has been successfully applied in different cell types and organisms with high efficiency. However, more efforts need to be made to enhance both efficiency and specificity. In the current study, we optimized the guide RNA structure of Streptococcus pyogenes CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)/Cas (CRISPR-associated) system to improve its genome editing efficiency. Comparing with the original functional structure of guide RNA, which is composed of crRNA and tracrRNA, the widely used chimeric gRNA has shorter crRNA and tracrRNA sequence. The deleted RNA sequence could form extra loop structure, which might enhance the stability of the guide RNA structure and subsequently the genome editing efficiency. Thus the genome editing efficiency of different forms of guide RNA was tested. And we found that the chimeric structure of gRNA with original full length of crRNA and tracrRNA showed higher genome editing efficiency than the conventional chimeric structure or other types of gRNA we tested. Therefore our data here uncovered the new type of gRNA structure with higher genome editing efficiency.

  11. A Study of Behavioral Change in 50 Severely Multi-Sensorily Handicapped Children Through Application of the Video-Tape Recorded Behavioral Evaluation Protocol. Final Report.

    Science.gov (United States)

    Curtis, W. Scott

    Examined with 49 deaf-blind children (under 9 years old) was the use of the Telediagnostic Behavior Evaluation Protocol, a video-tape recorded evaluation protocol. To further develop the Telediagnostic Protocol and delineate the characteristics of the Ss observed during the process of test development, Ss were video-taped in eight 3-minute…

  12. Gathering the Dreamers: The Transformation Process to a Learner-Centered School. The Reinventing School Series. Part Two and Viewing Guide. Videotape.

    Science.gov (United States)

    Burrello, Leonard C.; DiLaura, Nancy

    This videotape and viewing guide present an emerging learner-centered paradigm of teaching and learning and answer questions of why and how a staff changes its practices. The viewing guide describes the elementary school in the videotape, noting the full inclusion of 50 students identified as disabled, the team approach in which teachers are…

  13. A Study of 358 Cases of Locally Advanced Nasopharyngeal Carcinoma Receiving Intensity-Modulated Radiation Therapy: Improving the Seventh Edition of the American Joint Committee on Cancer T-Staging System

    Directory of Open Access Journals (Sweden)

    Qin Zhou

    2017-01-01

    Full Text Available To evaluate the rationality and limitations of the seventh edition of the American Joint Committee on Cancer (the 7th AJCC edition T-staging system for locally advanced nasopharyngeal carcinoma (NPC. The prognosis of 358 patients with stage T3/T4 NPC treated with intensity-modulated radiotherapy (IMRT was analyzed with the Kaplan–Meier method or the log-rank test. The 7th AJCC staging system of NPC has some limitations in that the T category is neither the significant factor in OS/LRFS nor the independent prognostic factor in OS/LRFS/DMFS/DFS (P>0.05. After adjustment by anatomic structures, univariate analysis has shown that the adjusted-T category has statistical significance between T3 and T4 for OS (86.4% and 71.3%, P=0.002, LRFS (97% and 90.9%, P=0.048, DMFS (90.9% and 77.2%, P=0.001, and DFS (86.2% and 67.5%, P=0.000, and multivariate analysis has shown that the adjusted-T category is an independent prognostic factor for OS/DMFS/DFS (with the exception of LRFS. Then, GTV-P was taken into consideration. Multivariate analysis showed that these nT categories serve as suitable independent prognostic factors for OS/DMFS/DFS (P<0.001 and LRFS (HR = 3.131; 95% CI, 1.090–8.990; P=0.043. The 7th AJCC staging system has limitations and should be improved by including the modifications suggested, such as anatomic structures and tumor volume adjustment.

  14. Connectivity editing for quadrilateral meshes

    KAUST Repository

    Peng, Chihan

    2011-12-01

    We propose new connectivity editing operations for quadrilateral meshes with the unique ability to explicitly control the location, orientation, type, and number of the irregular vertices (valence not equal to four) in the mesh while preserving sharp edges. We provide theoretical analysis on what editing operations are possible and impossible and introduce three fundamental operations to move and re-orient a pair of irregular vertices. We argue that our editing operations are fundamental, because they only change the quad mesh in the smallest possible region and involve the fewest irregular vertices (i.e., two). The irregular vertex movement operations are supplemented by operations for the splitting, merging, canceling, and aligning of irregular vertices. We explain how the proposed high-level operations are realized through graph-level editing operations such as quad collapses, edge flips, and edge splits. The utility of these mesh editing operations are demonstrated by improving the connectivity of quad meshes generated from state-of-art quadrangulation techniques.

  15. Connectivity editing for quadrilateral meshes

    KAUST Repository

    Peng, Chihan

    2011-12-12

    We propose new connectivity editing operations for quadrilateral meshes with the unique ability to explicitly control the location, orientation, type, and number of the irregular vertices (valence not equal to four) in the mesh while preserving sharp edges. We provide theoretical analysis on what editing operations are possible and impossible and introduce three fundamental operations to move and re-orient a pair of irregular vertices. We argue that our editing operations are fundamental, because they only change the quad mesh in the smallest possible region and involve the fewest irregular vertices (i.e., two). The irregular vertex movement operations are supplemented by operations for the splitting, merging, canceling, and aligning of irregular vertices. We explain how the proposed highlevel operations are realized through graph-level editing operations such as quad collapses, edge flips, and edge splits. The utility of these mesh editing operations are demonstrated by improving the connectivity of quad meshes generated from state-of-art quadrangulation techniques. © 2011 ACM.

  16. Genome Editing of Monogenic Neuromuscular Diseases: A Systematic Review.

    Science.gov (United States)

    Long, Chengzu; Amoasii, Leonela; Bassel-Duby, Rhonda; Olson, Eric N

    2016-11-01

    Muscle weakness, the most common symptom of neuromuscular disease, may result from muscle dysfunction or may be caused indirectly by neuronal and neuromuscular junction abnormalities. To date, more than 780 monogenic neuromuscular diseases, linked to 417 different genes, have been identified in humans. Genome-editing methods, especially the CRISPR (clustered regularly interspaced short palindromic repeats)-Cas9 (CRISPR-associated protein 9) system, hold clinical potential for curing many monogenic disorders, including neuromuscular diseases such as Duchenne muscular dystrophy, spinal muscular atrophy, amyotrophic lateral sclerosis, and myotonic dystrophy type 1. To provide an overview of genome-editing approaches; to summarize published reports on the feasibility, efficacy, and safety of current genome-editing methods as they relate to the potential correction of monogenic neuromuscular diseases; and to highlight scientific and clinical opportunities and obstacles toward permanent correction of disease-causing mutations responsible for monogenic neuromuscular diseases by genome editing. PubMed and Google Scholar were searched for articles published from June 30, 1989, through June 9, 2016, using the following keywords: genome editing, CRISPR-Cas9, neuromuscular disease, Duchenne muscular dystrophy, spinal muscular atrophy, amyotrophic lateral sclerosis, and myotonic dystrophy type 1. The following sources were reviewed: 341 articles describing different approaches to edit mammalian genomes; 330 articles describing CRISPR-Cas9-mediated genome editing in cell culture lines (in vitro) and animal models (in vivo); 16 websites used to generate single-guide RNA; 4 websites for off-target effects; and 382 articles describing viral and nonviral delivery systems. Articles describing neuromuscular diseases, including Duchenne muscular dystrophy, spinal muscular atrophy, amyotrophic lateral sclerosis, and myotonic dystrophy type 1, were also reviewed. Multiple proof

  17. Targeted Genome Regulation and Editing in Plants

    KAUST Repository

    Piatek, Agnieszka

    2016-03-01

    The ability to precisely regulate gene expression patterns and to modify genome sequence in a site-specific manner holds much promise in determining gene function and linking genotype to phenotype. DNA-binding modules have been harnessed to generate customizable and programmable chimeric proteins capable of binding to site-specific DNA sequences and regulating the genome and epigenome. Modular DNA-binding domains from zinc fingers (ZFs) and transcriptional activator-like effectors (TALEs) are amenable to engineering to bind any DNA target sequence of interest. Deciphering the code of TALE repeat binding to DNA has helped to engineer customizable TALE proteins capable of binding to any sequence of interest. Therefore TALE repeats provide a rich resource for bioengineering applications. However, the TALE system is limited by the requirement to re-engineer one or two proteins for each new target sequence. Recently, the clustered regularly interspaced palindromic repeats (CRISPR)/ CRISPR associated 9 (Cas9) has been used as a versatile genome editing tool. This machinery has been also repurposed for targeted transcriptional regulation. Due to the facile engineering, simplicity and precision, the CRISPR/Cas9 system is poised to revolutionize the functional genomics studies across diverse eukaryotic species. In this dissertation I employed transcription activator-like effectors and CRISPR/Cas9 systems for targeted genome regulation and editing and my achievements include: 1) I deciphered and extended the DNA-binding code of Ralstonia TAL effectors providing new opportunities for bioengineering of customizable proteins; 2) I repurposed the CRISPR/Cas9 system for site-specific regulation of genes in plant genome; 3) I harnessed the power of CRISPR/Cas9 gene editing tool to study the function of the serine/arginine-rich (SR) proteins.

  18. Simple Genome Editing of Rodent Intact Embryos by Electroporation.

    Directory of Open Access Journals (Sweden)

    Takehito Kaneko

    Full Text Available The clustered regularly interspaced short palindromic repeat (CRISPR/CRISPR-associated (Cas system is a powerful tool for genome editing in animals. Recently, new technology has been developed to genetically modify animals without using highly skilled techniques, such as pronuclear microinjection of endonucleases. Technique for animal knockout system by electroporation (TAKE method is a simple and effective technology that produces knockout rats by introducing endonuclease mRNAs into intact embryos using electroporation. Using TAKE method and CRISPR/Cas system, the present study successfully produced knockout and knock-in mice and rats. The mice and rats derived from embryos electroporated with Cas9 mRNA, gRNA and single-stranded oligodeoxynucleotide (ssODN comprised the edited targeted gene as a knockout (67% of mice and 88% of rats or knock-in (both 33%. The TAKE method could be widely used as a powerful tool to produce genetically modified animals by genome editing.

  19. Crosstown: A Fox Family Channel Afternoon Special for Cable in the Classroom. [Videotape with] Guide for Educators.

    Science.gov (United States)

    2000

    "Crosstown," the television program featured in this videotape and teaching guide, depicts a teenager who is forced, due to her father's lack of child support payments, to leave her comfortable home four years after her parents' divorce and to move across town to an apartment in an inner city neighborhood. The teenager decides not to be…

  20. An evaluation of the effectiveness of a videotape programme on interobserver reliability in outcome assessment for osteoarthritis.

    Science.gov (United States)

    Bellamy, N; Anjema, C; Alikhan, N; Chhina, T; Dhanoa, D; Edelist, D; Esufali, Z; Ismail, F; Hill, J; Campbell, J

    1999-01-01

    A study was designed to assess the effects of a standardized instructional videotape on training senior medical students to acceptable levels of reliability in performing several commonly used observer dependent outcome measures in patients with osteoarthritis (OA). During a single day, six third-year medical students independently examined six patients with OA in predetermined order using a Latin Square design, before and after viewing a standardized videotape demonstrating 13 examination techniques. Reliability coefficients were calculated based on variance components of the analysis of variance (ANOVA) table. Preslandardization reliability coefficients were goniometry were uniformly low. Following the intervention, all but four reliability coefficients were >/= 0.93. For many measures, high levels of interobserver agreement were noted prior to viewing the instructional videotape. This may represent the success of undergraduate clinical skills training programmes, or it may be the result of having reviewed an illustrated instructional text just prior to the initial patient examinations. The notable exception was knee goniometry. Despite apparent familiarity with the technique, prestandardization reliability coefficients were very low. However, following the intervention, all coefficients improved dramatically, two-thirds achieving very high levels. These data suggest that skills development in senior medical students is not uniform and that, while reliability is high for many, the assessment of knee range of movement can be improved by viewing an instructional videotape.

  1. Oligonucleotide-directed mutagenesis for precision gene editing.

    Science.gov (United States)

    Sauer, Noel J; Mozoruk, Jerry; Miller, Ryan B; Warburg, Zachary J; Walker, Keith A; Beetham, Peter R; Schöpke, Christian R; Gocal, Greg F W

    2016-02-01

    Differences in gene sequences, many of which are single nucleotide polymorphisms, underlie some of the most important traits in plants. With humanity facing significant challenges to increase global agricultural productivity, there is an urgent need to accelerate the development of these traits in plants. oligonucleotide-directed mutagenesis (ODM), one of the many tools of Cibus' Rapid Trait Development System (RTDS(™) ) technology, offers a rapid, precise and non-transgenic breeding alternative for trait improvement in agriculture to address this urgent need. This review explores the application of ODM as a precision genome editing technology, with emphasis on using oligonucleotides to make targeted edits in plasmid, episomal and chromosomal DNA of bacterial, fungal, mammalian and plant systems. The process of employing ODM by way of RTDS technology has been improved in many ways by utilizing a fluorescence conversion system wherein a blue fluorescent protein (BFP) can be changed to a green fluorescent protein (GFP) by editing a single nucleotide of the BFP gene (CAC→TAC; H66 to Y66). For example, dependent on oligonucleotide length, applying oligonucleotide-mediated technology to target the BFP transgene in Arabidopsis thaliana protoplasts resulted in up to 0.05% precisely edited GFP loci. Here, the development of traits in commercially relevant plant varieties to improve crop performance by genome editing technologies such as ODM, and by extension RTDS, is reviewed. © 2015 The Authors. Plant Biotechnology Journal published by Society for Experimental Biology and The Association of Applied Biologists and John Wiley & Sons Ltd.

  2. Editörden

    Directory of Open Access Journals (Sweden)

    Nadir Arıcan

    2007-04-01

    Full Text Available Değerli Adli Bilimci’ler, Dergimizin ilk baskısının yapıldığı 1996 yılından 2006 yılı sonuna kadar 11 ciltten oluşan dizisini ara vermeden kesintisiz olarak yayınlanma başarısını gösteren Adli Tıp Bülteni Yayın Kurulu adına saygı ile selamlıyoruz. Dergimizin 12. cildinin ilk sayısı, yayın kurulundaki görev değişikliği ile elinize ulaşıyor. “Adli Tıp Bülteni”ni tüm olumsuz koşullara karşın, siz alana emek veren adli bilimcilerin de büyük desteği ile yayın hayatım başarı ile sürdürdü. Bu başarıda başta editörlerimiz sayın Prof. Dr. Serpil Salaçin ve sayın Prof. Dr. Şebnem Korur Fincancı ile yayın kurulunda görev almış meslektaşlarımıza teşekkür ediyor ve desteklerinin artarak devam edeceğini ümit ediyoruz. Adli Tıp Bülteni, ilk editörü sayın Prof. Dr. Serpil Salaçin’in bültenin 1. sayısında belirttiği amaca uygun olarak, her geçen gün daha da güçlenerek yayın hayatını sürdürmektedir. Yayın akışında zaman zaman kesintiler olsa da, amacı doğrultusunda “alanındaki bilgi akışını sağlama ve bilimsel gelişmelerin önemli bir parçası olma özelliğini” Adli Tıp Uzmanları Derneği’nin resmi bilimsel yayın organı kimliği ile devam ettirmektedir. Hedefleri doğrultusunda uluslararası indekslerce taranan bir dergi olma yolunda ilk adımını atan dergimizin bu alandaki çalışmaları sayın Prof. Dr. Şebnem Korur Fincancı tarafından yürütülmektedir. Görevini genç meslektaşına devretmiş olsa da alanımızdaki uluslar arası deneyimi ile Adli Tıp Bülteni’ni çok farklı noktalara taşıyacağı inancındayım. Bu alanda yapacağı katkılardan dolayı sayın hocama biz kez daha teşekkür etmek istiyorum. Bundan böyle Adli Tıp Bülteni’ne yayınlanmak üzere gönderdiğiniz çalışmalarınızın değerlendirmesini daha hızlı yapabilmek ve baskı aşamasına getirmek amacı ile iletişimi elektronik ortamda yapmaya

  3. Understanding Editing Behaviors in Multilingual Wikipedia.

    Science.gov (United States)

    Kim, Suin; Park, Sungjoon; Hale, Scott A; Kim, Sooyoung; Byun, Jeongmin; Oh, Alice H

    2016-01-01

    Multilingualism is common offline, but we have a more limited understanding of the ways multilingualism is displayed online and the roles that multilinguals play in the spread of content between speakers of different languages. We take a computational approach to studying multilingualism using one of the largest user-generated content platforms, Wikipedia. We study multilingualism by collecting and analyzing a large dataset of the content written by multilingual editors of the English, German, and Spanish editions of Wikipedia. This dataset contains over two million paragraphs edited by over 15,000 multilingual users from July 8 to August 9, 2013. We analyze these multilingual editors in terms of their engagement, interests, and language proficiency in their primary and non-primary (secondary) languages and find that the English edition of Wikipedia displays different dynamics from the Spanish and German editions. Users primarily editing the Spanish and German editions make more complex edits than users who edit these editions as a second language. In contrast, users editing the English edition as a second language make edits that are just as complex as the edits by users who primarily edit the English edition. In this way, English serves a special role bringing together content written by multilinguals from many language editions. Nonetheless, language remains a formidable hurdle to the spread of content: we find evidence for a complexity barrier whereby editors are less likely to edit complex content in a second language. In addition, we find that multilinguals are less engaged and show lower levels of language proficiency in their second languages. We also examine the topical interests of multilingual editors and find that there is no significant difference between primary and non-primary editors in each language.

  4. Understanding Editing Behaviors in Multilingual Wikipedia.

    Directory of Open Access Journals (Sweden)

    Suin Kim

    Full Text Available Multilingualism is common offline, but we have a more limited understanding of the ways multilingualism is displayed online and the roles that multilinguals play in the spread of content between speakers of different languages. We take a computational approach to studying multilingualism using one of the largest user-generated content platforms, Wikipedia. We study multilingualism by collecting and analyzing a large dataset of the content written by multilingual editors of the English, German, and Spanish editions of Wikipedia. This dataset contains over two million paragraphs edited by over 15,000 multilingual users from July 8 to August 9, 2013. We analyze these multilingual editors in terms of their engagement, interests, and language proficiency in their primary and non-primary (secondary languages and find that the English edition of Wikipedia displays different dynamics from the Spanish and German editions. Users primarily editing the Spanish and German editions make more complex edits than users who edit these editions as a second language. In contrast, users editing the English edition as a second language make edits that are just as complex as the edits by users who primarily edit the English edition. In this way, English serves a special role bringing together content written by multilinguals from many language editions. Nonetheless, language remains a formidable hurdle to the spread of content: we find evidence for a complexity barrier whereby editors are less likely to edit complex content in a second language. In addition, we find that multilinguals are less engaged and show lower levels of language proficiency in their second languages. We also examine the topical interests of multilingual editors and find that there is no significant difference between primary and non-primary editors in each language.

  5. Human coding RNA editing is generally nonadaptive

    Science.gov (United States)

    Xu, Guixia; Zhang, Jianzhi

    2014-01-01

    Impairment of RNA editing at a handful of coding sites causes severe disorders, prompting the view that coding RNA editing is highly advantageous. Recent genomic studies have expanded the list of human coding RNA editing sites by more than 100 times, raising the question of how common advantageous RNA editing is. Analyzing 1,783 human coding A-to-G editing sites, we show that both the frequency and level of RNA editing decrease as the importance of a site or gene increases; that during evolution, edited As are more likely than unedited As to be replaced with Gs but not with Ts or Cs; and that among nonsynonymously edited As, those that are evolutionarily least conserved exhibit the highest editing levels. These and other observations reveal the overall nonadaptive nature of coding RNA editing, despite the presence of a few sites in which editing is clearly beneficial. We propose that most observed coding RNA editing results from tolerable promiscuous targeting by RNA editing enzymes, the original physiological functions of which remain elusive. PMID:24567376

  6. Spanish Voice-Over: An Effective Option for Producing Educational Videotapes for the Hispanic Elderly.

    Science.gov (United States)

    Sizemore, Mark T.; Reynolds-Diaz, Maria

    2000-01-01

    A video on telemarketing fraud was adapted for Mexican American older adults by adding a Spanish voiceover translated by a bilingual committee. Evaluation indicated that the translation was effective and the content communicated what was intended. Editing using digital technology was an efficient production technique. (SK)

  7. Beginning XML, 5th Edition

    CERN Document Server

    Fawcett, Joe; Quin, Liam R E

    2012-01-01

    A complete update covering the many advances to the XML language The XML language has become the standard for writing documents on the Internet and is constantly improving and evolving. This new edition covers all the many new XML-based technologies that have appeared since the previous edition four years ago, providing you with an up-to-date introductory guide and reference. Packed with real-world code examples, best practices, and in-depth coverage of the most important and relevant topics, this authoritative resource explores both the advantages and disadvantages of XML and addresses the mo

  8. Introducing ZBrush 3rd Edition

    CERN Document Server

    Keller, Eric

    2012-01-01

    Learn ZBrush inside and out with this updated new edition Get totally comfortable sculpting in a digital environment with the latest edition of this bestselling beginner's guide to ZBrush. Fully updated for the newest version of the software, ZBrush 4R3, this book dispels any fears you might have about the difficulty of using ZBrush and soon has you creating realistic, cartoon, and organic models with flair. Learn all the essentials, as you complete fun tutorials on painting, meshes, organic scripting, hard surface sculpting, lighting, rendering, and more. Introduces you to ZBrush, the sculpt

  9. Language Editing at Astronomy & Astrophysics

    Science.gov (United States)

    Adams, J.

    2011-07-01

    In 2002, the A&A Board of Directors voted that all articles must be written in English and decided to improve the overall quality of the language in the articles with the help of a team of language editors. This article reviews the general advantages of editing the English expression and describes both the aims of this effort and its place in the full publication process. This is followed by the Guide to language editing that has been available on the Journal's website for several years now.

  10. Handbook of ecotoxicology, second edition

    Science.gov (United States)

    Hoffman, David J.; Rattner, Barnett A.; Burton, G. Allen; Cairns, John

    2003-01-01

    Handbook of Ecotoxicology, Second Edition focuses on toxic substances and how they affect ecosystems worldwide. It presents methods for quantifying and measuring ecotoxicological effects in the field and in the lab, as well as methods for estimating, predicting, and modeling in ecotoxicology studies. Completely revised and updated with 18 new chapters, this second edition includes contributions from over 75 international experts. Also, a Technical Review Board reviewed all manuscripts for accuracy and currency. This authoritative work is the definitive reference for students, researchers, consultants, and other professionals in the environmental sciences, toxicology, chemistry, biology, and ecology - in academia, industry, and government.

  11. Shielded Metal Arc Pipe Welding. Teacher Edition. Second Edition.

    Science.gov (United States)

    Fortney, Clarence; And Others

    This second edition of the shielded metal arc pipe welding curriculum guide presents both basic and advanced pipe welding skills. All specifications for procedure and welder qualification are presented according to national standards. The standards also include the test position for both groove and fillet pipe welding. The guide contains three…

  12. Gas Tungsten Arc Welding and Plasma Arc Cutting. Teacher Edition [and] Student Edition [and] Student Workbook. Second Edition.

    Science.gov (United States)

    Harper, Eddie; Knapp, John

    This packet of instructional materials for a gas tungsten arc welding (GTAW) and plasma arc cutting course is comprised of a teacher edition, student edition, and student workbook. The teacher edition consists of introductory pages and teacher pages. Introductory pages include training and competency profile, state duty/task crosswalk,…

  13. Gas Metal Arc Welding and Flux-Cored Arc Welding. Third Edition. Teacher Edition [and] Student Edition [and] Student Workbook.

    Science.gov (United States)

    Knapp, John; Harper, Eddie

    This packet, containing a teacher's edition, a student edition, and a student workbook, introduces students to high deposition welding and processes for "shielding" a weld. In addition to general information, the teacher edition consists of introductory pages and teacher pages, as well as unit information that corresponds to the…

  14. Emerging technologies planning guide, 1993 edition

    Energy Technology Data Exchange (ETDEWEB)

    1992-11-01

    Information system technology enhancements during the next five years are expected to provide some of the most significant individual and organization work improvements ever made in the office environment. This guide is an aid to planning these technologies and assessing their roles in improving the effectiveness of Headquarters programs. Their implementation will cost-effectively support Departmental operations and the National Energy Strategy. At the hear of this process is an understanding of the relationship which exists between technology introduction and the planning, budgeting and acquisition process. The 1993 edition of this guide covers the 1993--1997 time frame.

  15. Genome Editing Using Mammalian Haploid Cells

    Directory of Open Access Journals (Sweden)

    Takuro Horii

    2015-10-01

    Full Text Available Haploid cells are useful for studying gene functions because disruption of a single allele can cause loss-of-function phenotypes. Recent success in generating haploid embryonic stem cells (ESCs in mice, rats, and monkeys provides a new platform for simple genetic manipulation of the mammalian genome. Use of haploid ESCs enhances the genome-editing potential of the CRISPR/Cas system. For example, CRISPR/Cas was used in haploid ESCs to generate multiple knockouts and large deletions at high efficiency. In addition, genome-wide screening is facilitated by haploid cell lines containing gene knockout libraries.

  16. RNA editing machinery in plant organelles.

    Science.gov (United States)

    Yan, Junjie; Zhang, Qunxia; Yin, Ping

    2017-10-23

    RNA editing is a type of post-transcriptional modification that includes nucleotide insertion/deletion or conversion. Different categories of RNA editing have been widely observed in distinct RNAs from divergent organisms. In flowering plants, RNA editing usually alters cytidine to uridine in plastids and mitochondria, playing important roles in various plant developmental processes, including organelle biogenesis, adaptation to environmental changes, and signal transduction. Numerous studies have demonstrated that a number of factors are involved in plant RNA editing, such as pentatricopeptide repeat (PPR) proteins, multiple organelle RNA editing factors (MORF, also known as RIP), organelle RNA recognition motif (ORRM) containing proteins, protoporphyrinogen IX oxidase 1 (PPO1) and organelle zinc finger 1 (OZ1). These factors play diverse roles in plant RNA editing due to their distinct characteristics. In this review, we discuss the functional roles of the individual editing factors and their associations in plant RNA editing.

  17. A Computational Framework for Vertical Video Editing

    OpenAIRE

    Gandhi, Vineet; Ronfard, Rémi

    2015-01-01

    International audience; Vertical video editing is the process of digitally editing the image within the frame as opposed to horizontal video editing, which arranges the shots along a timeline. Vertical editing can be a time-consuming and error-prone process when using manual key-framing and simple interpolation. In this paper, we present a general framework for automatically computing a variety of cinematically plausible shots from a single input video suitable to the special case of live per...

  18. Human Genome Editing and Ethical Considerations.

    Science.gov (United States)

    Krishan, Kewal; Kanchan, Tanuj; Singh, Bahadur

    2016-04-01

    Editing human germline genes may act as boon in some genetic and other disorders. Recent editing of the genome of the human embryo with the CRISPR/Cas9 editing tool generated a debate amongst top scientists of the world for the ethical considerations regarding its effect on the future generations. It needs to be seen as to what transformation human gene editing brings to humankind in the times to come.

  19. Strategies of Qualitative Inquiry. Third Edition

    Science.gov (United States)

    Denzin, Norman K., Ed.; Lincoln, Yvonna S., Ed.

    2007-01-01

    "Strategies of Qualitative Inquiry, Third Edition," the second volume in the paperback version of "The SAGE Handbook of Qualitative Research, 3rd Edition," consists of Part III of the handbook ("Strategies of Inquiry"). "Strategies of Qualitative Inquiry, Third Edition" presents the major tactics--historically, the research methods--that…

  20. RNA Editing in Pathogenesis of Cancer.

    Science.gov (United States)

    Baysal, Bora E; Sharma, Shraddha; Hashemikhabir, Seyedsasan; Janga, Sarath Chandra

    2017-07-15

    Several adenosine or cytidine deaminase enzymes deaminate transcript sequences in a cell type or environment-dependent manner by a programmed process called RNA editing. RNA editing enzymes catalyze A>I or C>U transcript alterations and have the potential to change protein coding sequences. In this brief review, we highlight some recent work that shows aberrant patterns of RNA editing in cancer. Transcriptome sequencing studies reveal increased or decreased global RNA editing levels depending on the tumor type. Altered RNA editing in cancer cells may provide a selective advantage for tumor growth and resistance to apoptosis. RNA editing may promote cancer by dynamically recoding oncogenic genes, regulating oncogenic gene expression by noncoding RNA and miRNA editing, or by transcriptome scale changes in RNA editing levels that may affect innate immune signaling. Although RNA editing markedly increases complexity of the cancer cell transcriptomes, cancer-specific recoding RNA editing events have yet to be discovered. Epitranscriptomic changes by RNA editing in cancer represent a novel mechanism contributing to sequence diversity independently of DNA mutations. Therefore, RNA editing studies should complement genome sequence data to understand the full impact of nucleic acid sequence alterations in cancer. Cancer Res; 77(14); 3733-9. ©2017 AACR. ©2017 American Association for Cancer Research.

  1. Money and Schools. Fifth Edition

    Science.gov (United States)

    Thompson, David C.; Crampton, Faith E.; Wood, R. Craig

    2012-01-01

    In the new edition of this essential, all-inclusive text, the authors provide more important research for future principals and others enrolled in graduate-level school finance courses. Written in a style that is highly readable, the book offers strong connections to real-world experiences. Readers get both a broad overview of funding concepts and…

  2. Veterinary Microbiology, 3rd Edition

    Science.gov (United States)

    Veterinary Microbiology, Third Edition is organized into four sections and begins with an updated and expanded introductory section on infectious disease pathogenesis, diagnosis and clinical management. The second section covers bacterial and fungal pathogens, and the third section describes viral d...

  3. Medical writing, revising and editing

    DEFF Research Database (Denmark)

    Pilegaard, Morten

    2006-01-01

    The globalization of science makes medical writing, editing and revision a rapidly growing field of linguistic study and practice. Medical science texts are written according to uniform, general guidelines and medical genres have become highly conventionalized in terms of structure and linguistic...

  4. Editörden

    Directory of Open Access Journals (Sweden)

    Şebnem Korur Fincancı

    2005-08-01

    Full Text Available Değerli Meslektaşlarım, Bu yılın ilk sayısında bir değişiklik gözünüze çarpmış olabilir. Adli Tıp Bülteni artık Türk Tıp Dizini’nde yer almamaktadır ve yer almadığına dair bildirim ilk sayımız basıldıktan sonra elimize ulaşmış olsa da, Adli Tıp Uzmanları Derneğinin başkanları ve dergimizin editörü olarak benim hakkımda yapılmış olan başvuru üzerine hakkımızda yapılan soruşturmalar sırasında, bir başka kişiye verilmiş olan e-posta yanıtından öğrenmiş olmamız dolayısıyla, anılan ibareye geçen sayımızda yer vermemiş idik. Bu süreci paylaşmak gerektiğini düşünüyorum. Türk Tıp Dizini 1997 yılında yaptığımız başvuru sonucu iki taraflı bir sözleşme ile yayın hakkı verdiğimiz kurumsal bir yapılanmadır. Sözleşme 1997 yılında yapılmış olmasına karşın, ilk çıkmaya başladığı 1996 yılından itibaren dergimiz dizinlenmiştir. Sözleşme hükümlerinde, katılım iznini veren taraf olarak sözleşmeyi imzalayan Adli Tıp Bülteni ile ilgili: a\tYayım/yayın haklarını kullanma iznini dergi sahipleri dışında TÜBİTAK’a da verdiğini kabul ettiği, b\tİzin veren taraf olarak süreli yayında söz konusu derginin TÜBİTAK tarafından dizinlendiği belirtilecek ve Türk Tıp Dizini’nin çıkacak olan her sayı için dergisinde bir sayfalık tanıtıya yer vereceği, c\tTürk Tıp Dizini koşullarına uyulmadığı takdirde önce uyarılmak koşulu ile derginin dizinden çıkarılabileceği, d\tİki nüsha tanzim edilen bu sözleşmenin taraflarca imzalandığı, ilk yılın sonunda aksi beyanda bulunulmadığı takdirde ikinci yıl bitimine kadar devam edeceği, e\tSözleşmeden doğan uyuşmazlıklarda Ankara Mahkemeleri ve İcra Dairelerinin yetkili olduğu belirtilmiştir. İlk yılın sonunda aksi beyanda bulunulmadığı takdirde sözleşmenin devam edeceği bildirilmiş olup, Türk Tıp Dizini koşullarına uyulmadığında önce uyar

  5. Abundant RNA editing sites of chloroplast protein-coding genes in Ginkgo biloba and an evolutionary pattern analysis.

    Science.gov (United States)

    He, Peng; Huang, Sheng; Xiao, Guanghui; Zhang, Yuzhou; Yu, Jianing

    2016-12-01

    RNA editing is a posttranscriptional modification process that alters the RNA sequence so that it deviates from the genomic DNA sequence. RNA editing mainly occurs in chloroplasts and mitochondrial genomes, and the number of editing sites varies in terrestrial plants. Why and how RNA editing systems evolved remains a mystery. Ginkgo biloba is one of the oldest seed plants and has an important evolutionary position. Determining the patterns and distribution of RNA editing in the ancient plant provides insights into the evolutionary trend of RNA editing, and helping us to further understand their biological significance. In this paper, we investigated 82 protein-coding genes in the chloroplast genome of G. biloba and identified 255 editing sites, which is the highest number of RNA editing events reported in a gymnosperm. All of the editing sites were C-to-U conversions, which mainly occurred in the second codon position, biased towards to the U_A context, and caused an increase in hydrophobic amino acids. RNA editing could change the secondary structures of 82 proteins, and create or eliminate a transmembrane region in five proteins as determined in silico. Finally, the evolutionary tendencies of RNA editing in different gene groups were estimated using the nonsynonymous-synonymous substitution rate selection mode. The G. biloba chloroplast genome possesses the highest number of RNA editing events reported so far in a seed plant. Most of the RNA editing sites can restore amino acid conservation, increase hydrophobicity, and even influence protein structures. Similar purifying selections constitute the dominant evolutionary force at the editing sites of essential genes, such as the psa, some psb and pet groups, and a positive selection occurred in the editing sites of nonessential genes, such as most ndh and a few psb genes.

  6. High-throughput quantification of chloroplast RNA editing extent using multiplex RT-PCR mass spectrometry.

    Science.gov (United States)

    Germain, Arnaud; Hanson, Maureen R; Bentolila, Stéphane

    2015-08-01

    RNA editing in plants, animals, and humans modifies genomically encoded cytidine or adenosine nucleotides to uridine or inosine, respectively, in mRNAs. We customized the MassARRAY System (Sequenom Inc., San Diego, CA, USA, www.sequenom.com) to assay multiplex PCR-amplified single-stranded cDNAs and easily analyse and display the captured data. By using appropriate oligonucleotide probes, the method can be tailored to any organism and gene where RNA editing occurs. Editing extent of up to 40 different nucleotides in each of either 94 or 382 different samples (3760 or 15 280 editing targets, respectively) can be examined by assaying a single plate and by performing one repetition. We have established this mass spectrometric method as a dependable, cost-effective and time-saving technique to examine the RNA editing efficiency at 37 Arabidopsis thaliana chloroplast editing sites at a high level of multiplexing. The high-throughput editing assay, named Multiplex RT-PCR Mass Spectrometry (MRMS), is ideal for large-scale experiments such as identifying population variation, examining tissue-specific changes in editing extent, or screening a mutant or transgenic collection. Moreover, the required amount of starting material is so low that RNA from fewer than 50 cells can be examined without amplification. We demonstrate the use of the method to identify natural variation in editing extent of chloroplast C targets in a collection of Arabidopsis accessions. © 2015 The Authors The Plant Journal © 2015 John Wiley & Sons Ltd.

  7. Dysregulated A to I RNA editing and non-coding RNAs in neurodegeneration.

    Science.gov (United States)

    Singh, Minati

    2012-01-01

    RNA editing is an alteration in the primary nucleotide sequences resulting from a chemical change in the base. RNA editing is observed in eukaryotic mRNA, transfer RNA, ribosomal RNA, and non-coding RNAs (ncRNA). The most common RNA editing in the mammalian central nervous system is a base modification, where the adenosine residue is base-modified to inosine (A to I). Studies from ADAR (adenosine deaminase that act on RNA) mutants in Caenorhabditis elegans, Drosophila, and mice clearly show that the RNA editing process is an absolute requirement for nervous system homeostasis and normal physiology of the animal. Understanding the mechanisms of editing and findings of edited substrates has provided a better knowledge of the phenotype due to defective and hyperactive RNA editing. A to I RNA editing is catalyzed by a family of enzymes knows as ADARs. ADARs modify duplex RNAs and editing of duplex RNAs formed by ncRNAs can impact RNA functions, leading to an altered regulatory gene network. Such altered functions by A to I editing is observed in mRNAs, microRNAs (miRNA) but other editing of small and long ncRNAs (lncRNAs) has yet to be identified. Thus, ncRNA and RNA editing may provide key links between neural development, nervous system function, and neurological diseases. This review includes a summary of seminal findings regarding the impact of ncRNAs on biological and pathological processes, which may be further modified by RNA editing. NcRNAs are non-translated RNAs classified by size and function. Known ncRNAs like miRNAs, smallRNAs (smRNAs), PIWI-interacting RNAs (piRNAs), and lncRNAs play important roles in splicing, DNA methylation, imprinting, and RNA interference. Of note, miRNAs are involved in development and function of the nervous system that is heavily dependent on both RNA editing and the intricate spatiotemporal expression of ncRNAs. This review focuses on the impact of dysregulated A to I editing and ncRNAs in neurodegeneration.

  8. Video Therapy Case Study: The Therapeutic Use of Edited Videotapes as a Primary Means of Behavioral Intervention in the Shaping of Appropriate Grammatical and Contextual Use of Language.

    Science.gov (United States)

    Haarmann, Betsy S.; Greelis, Michael T.

    1982-01-01

    Video therapy tapes that incorporated self-modeling, structured rehearsal, projective rehearsal, and systematic social reinforcement were effective in shaping a 15-year-old schizophrenic girl's appropriate grammatical and contextual use of language. (CL)

  9. UN-EDITED VERSION

    Indian Academy of Sciences (India)

    21

    Kraft-Terry et al.,. 2010; Roberts et al., 2010). ... monocyte migration into central nervous system (CNS) (Ghorpade et al., 2001). ... has been shown to correlate with declines in pulmonary function in smokers (Nishioka et al., 2000). Montes et al.

  10. Safety, Security, and Policy Considerations for Plant Genome Editing.

    Science.gov (United States)

    Wolt, Jeffrey D

    2017-01-01

    Genome editing with engineered nucleases (GEEN) is increasingly used as a tool for gene discovery and trait development in crops through generation of targeted changes in endogenous genes. The development of the CRISPR-Cas9 system (clustered regularly interspaced short palindromic repeats with associated Cas9 protein), in particular, has enabled widespread use of genome editing. Research to date has not comprehensively addressed genome-editing specificity and off-target mismatches that may result in unintended changes within plant genomes or the potential for gene drive initiation. Governance and regulatory considerations for bioengineered crops derived from using GEEN will require greater clarity as to target specificity, the potential for mismatched edits, unanticipated downstream effects of off-target mutations, and assurance that genome reagents do not occur in finished products. Since governance and regulatory decision making involves robust standards of evidence extending from the laboratory to the postcommercial marketplace, developers of genome-edited crops must anticipate significant engagement and investment to address questions of regulators and civil society. © 2017 Elsevier Inc. All rights reserved.

  11. Primordial germ cell-mediated transgenesis and genome editing in birds.

    Science.gov (United States)

    Han, Jae Yong; Park, Young Hyun

    2018-01-01

    Transgenesis and genome editing in birds are based on a unique germline transmission system using primordial germ cells (PGCs), which is quite different from the mammalian transgenic and genome editing system. PGCs are progenitor cells of gametes that can deliver genetic information to the next generation. Since avian PGCs were first discovered in nineteenth century, there have been numerous efforts to reveal their origin, specification, and unique migration pattern, and to improve germline transmission efficiency. Recent advances in the isolation and in vitro culture of avian PGCs with genetic manipulation and genome editing tools enable the development of valuable avian models that were unavailable before. However, many challenges remain in the production of transgenic and genome-edited birds, including the precise control of germline transmission, introduction of exogenous genes, and genome editing in PGCs. Therefore, establishing reliable germline-competent PGCs and applying precise genome editing systems are critical current issues in the production of avian models. Here, we introduce a historical overview of avian PGCs and their application, including improved techniques and methodologies in the production of transgenic and genome-edited birds, and we discuss the future potential applications of transgenic and genome-edited birds to provide opportunities and benefits for humans.

  12. CRISPR/Cpf1 enables fast and simple genome editing of Saccharomyces cerevisiae.

    Science.gov (United States)

    Verwaal, René; Buiting-Wiessenhaan, Nathalie; Dalhuijsen, Sacha; Roubos, Johannes A

    2017-09-08

    Cpf1 represents a novel single RNA-guided CRISPR/Cas endonuclease system suitable for genome editing with distinct features compared to Cas9. We demonstrate the functionality of three Cpf1 orthologues - Acidaminococcus spp. BV3L6 (AsCpf1), Lachnospiraceae bacterium ND2006 (LbCpf1), Francisella novicida U112 (FnCpf1) - for genome editing of Saccharomyces cerevisiae. These Cpf1-based systems enable fast and reliable introduction of donor DNA on the genome using a two plasmid-based editing approach together with linear donor DNA. LbCpf1 and FnCpf1 displayed editing efficiencies comparable to that of the CRISPR/Cas9 system, whereas AsCpf1 editing efficiency was lower. Further characterization showed that AsCpf1 and LbCpf1 displayed preference for their cognate crRNA, while FnCpf1-mediated editing with similar efficiencies was observed using non-cognate crRNAs of AsCpf1 and LbCpf1. In addition, multiplex genome editing using a single LbCpf1 crRNA array is shown to be functional in yeast. This work demonstrates that Cpf1 broadens the genome editing toolbox available for Saccharomyces cerevisiae. This article is protected by copyright. All rights reserved.

  13. Diesel Technology: Safety Skills. Teacher Edition [and] Student Edition. Second Edition.

    Science.gov (United States)

    Kellum, Mary

    Teacher and student editions of this document are one in a series of competency-based instructional materials for diesel technology programs. The series aligns with the medium/heavy diesel duty truck task list used by the National Institute for Automotive Service Excellence in the certification of medium/heavy duty truck technicians. Introductory…

  14. Diesel Technology: Steering and Suspension. Second Edition. Teacher Edition [and] Student Edition.

    Science.gov (United States)

    Miller, Roger; Scarberry, Terry; Tesch, Carl; Kellum, Mary

    These teacher and student editions on steering and suspension are part of the diesel mechanics series of instructional materials. The series aligns with the medium/heavy duty truck task list developed by the National Automotive Technicians Education Foundation and used by the National Institute for Automotive Service Excellence in the…

  15. Index to Ecology (Multimedia). Second Edition.

    Science.gov (United States)

    University of Southern California, Los Angeles. National Information Center for Educational Media.

    This expanded catalog lists over 8,000 films, filmstrips, videotapes, transparencies, audiotapes, and records dealing with environmental and ecological topics. Subjects include: amphibians, botany, birth control, city planning, evolution, food chains, farming, oceanography, and sea life. Titles are listed alphabetically. Though entries are not…

  16. Atmel AVR Microcontroller Primer Programming and Interfacing, Second Edition

    CERN Document Server

    Barrett, Steven F

    2012-01-01

    This textbook provides practicing scientists and engineers a primer on the Atmel AVR microcontroller. In this second edition we highlight the popular ATmega164 microcontroller and other pin-for-pin controllers in the family with a complement of flash memory up to 128 kbytes. The second edition also adds a chapter on embedded system design fundamentals and provides extended examples on two different autonomous robots. Our approach is to provide the fundamental skills to quickly get up and operating with this internationally popular microcontroller. We cover the main subsystems aboard the ATmega

  17. CRISPR/Cas9: Transcending the Reality of Genome Editing

    Directory of Open Access Journals (Sweden)

    Sergiu Chira

    2017-06-01

    Full Text Available With the expansion of the microbiology field of research, a new genome editing tool arises from the biology of bacteria that holds the promise of achieving precise modifications in the genome with a simplicity and versatility that surpasses previous genome editing methods. This new technique, commonly named CRISPR/Cas9, led to a rapid expansion of the biomedical field; more specifically, cancer characterization and modeling have benefitted greatly from the genome editing capabilities of CRISPR/Cas9. In this paper, we briefly summarize recent improvements in CRISPR/Cas9 design meant to overcome the limitations that have arisen from the nuclease activity of Cas9 and the influence of this technology in cancer research. In addition, we present challenges that might impede the clinical applicability of CRISPR/Cas9 for cancer therapy and highlight future directions for designing CRISPR/Cas9 delivery systems that might prove useful for cancer therapeutics.

  18. Collaborative editing within the pervasive collaborative computing environment

    Energy Technology Data Exchange (ETDEWEB)

    Perry, Marcia [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Agarwal, Deb [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2003-09-11

    Scientific collaborations are established for a wide variety of tasks for which several communication modes are necessary, including messaging, file-sharing, and collaborative editing. In this position paper, we describe our work on the Pervasive Collaborative Computing Environment (PCCE) which aims to facilitate scientific collaboration within widely distributed environments. The PCCE provides a persistent space in which collaborators can locate each other, exchange messages synchronously and asynchronously and archive conversations. Our current interest is in exploring research and development of shared editing systems with the goal of integrating this technology into the PCCE. We hope to inspire discussion of technology solutions for an integrated approach to synchronous and asynchronous communication and collaborative editing.

  19. Juvenile Rights. Second Edition.

    Science.gov (United States)

    Eaneman, Paulette S.; And Others

    These classroom materials are part of the Project Benchmark series designed to teach secondary students about our legal concepts and systems. This unit focuses on juvenile rights and responsibilities under the law. The materials outline juvenile rights and responsibilities in the areas of parental control, education, free expression, search and…

  20. Efficient Mitochondrial Genome Editing by CRISPR/Cas9

    Directory of Open Access Journals (Sweden)

    Areum Jo

    2015-01-01

    Full Text Available The Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR/Cas9 system has been widely used for nuclear DNA editing to generate mutations or correct specific disease alleles. Despite its flexible application, it has not been determined if CRISPR/Cas9, originally identified as a bacterial defense system against virus, can be targeted to mitochondria for mtDNA editing. Here, we show that regular FLAG-Cas9 can localize to mitochondria to edit mitochondrial DNA with sgRNAs targeting specific loci of the mitochondrial genome. Expression of FLAG-Cas9 together with gRNA targeting Cox1 and Cox3 leads to cleavage of the specific mtDNA loci. In addition, we observed disruption of mitochondrial protein homeostasis following mtDNA truncation or cleavage by CRISPR/Cas9. To overcome nonspecific distribution of FLAG-Cas9, we also created a mitochondria-targeted Cas9 (mitoCas9. This new version of Cas9 localizes only to mitochondria; together with expression of gRNA targeting mtDNA, there is specific cleavage of mtDNA. MitoCas9-induced reduction of mtDNA and its transcription leads to mitochondrial membrane potential disruption and cell growth inhibition. This mitoCas9 could be applied to edit mtDNA together with gRNA expression vectors without affecting genomic DNA. In this brief study, we demonstrate that mtDNA editing is possible using CRISPR/Cas9. Moreover, our development of mitoCas9 with specific localization to the mitochondria should facilitate its application for mitochondrial genome editing.

  1. A videotaped intervention to enhance child control and reduce anxiety of the pain of dental injections.

    Science.gov (United States)

    Weinstein, P; Raadal, M; Naidu, S; Yoshida, T; Kvale, G; Milgrom, P

    2003-12-01

    While the psychological literature shows that perceptions of uncontrollability contribute to anxiety and other pathologies, interventions that enhance perceived control have been shown to reduce anxiety. This study attempted to assess a brief videotape to enhance child perceived control in a dental setting. 101 children aged 7-9 years completed warm-up procedures and viewed either: a) the experimental intervention, a 2 minutes video of a dentist explaining what an injection will feel like and proposing hand raising as a signal mechanism; or b) the control condition, a 2 minutes video of Disneyland. Fear of dental injections was assessed on a 10 cm visual analogue scale before and after the intervention. In the experimental group there was a significant fear reduction from pre- to post-intervention, while this was not the case in the control group. Children with higher pre-existing levels of fear benefited more from the intervention than children with lower levels of fear. The results of this pilot study suggest that intervention packages that impact child control have promise in lowering anxiety.

  2. Provider Education about Glaucoma and Glaucoma Medications during Videotaped Medical Visits

    Directory of Open Access Journals (Sweden)

    Betsy Sleath

    2014-01-01

    Full Text Available Objective. The purpose of this study was to examine how patient, physician, and situational factors are associated with the extent to which providers educate patients about glaucoma and glaucoma medications, and which patient and provider characteristics are associated with whether providers educate patients about glaucoma and glaucoma medications. Methods. Patients with glaucoma who were newly prescribed or on glaucoma medications were recruited and a cross-sectional study was conducted at six ophthalmology clinics. Patients’ visits were videotape recorded and patients were interviewed after visits. Generalized estimating equations were used to analyze the data. Results. Two hundred and seventy-nine patients participated. Providers were significantly more likely to educate patients about glaucoma and glaucoma medications if they were newly prescribed glaucoma medications. Providers were significantly less likely to educate African American patients about glaucoma. Providers were significantly less likely to educate patients of lower health literacy about glaucoma medications. Conclusion. Eye care providers did not always educate patients about glaucoma or glaucoma medications. Practice Implications. Providers should consider educating more patients about what glaucoma is and how it is treated so that glaucoma patients can better understand their disease. Even if a patient has already been educated once, it is important to reinforce what has been taught before.

  3. The two faces of endogenous DNA editing enzymes: Promoting ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    The two faces of endogenous DNA editing enzymes: Promoting gene mutations as well as genome repair. Type B lymphocytes are a specific type of white blood cell within our immune system. They produce and export antibodies which seek out, attach to, and neutralize microbes and toxins. A unique way that B ...

  4. CRISPR/Cas9 based genome editing of Penicillium chrysogenum

    NARCIS (Netherlands)

    Pohl, Carsten; Kiel, Jan A K W; Driessen, Arnold J M; Bovenberg, Roel A L; Nygård, Yvonne

    2016-01-01

    CRISPR/Cas9 based systems have emerged as versatile platforms for precision genome editing in a wide range of organisms. Here we have developed powerful CRISPR/Cas9 tools for marker-based and marker-free genome modifications in Penicillium chrysogenum, a model filamentous fungus and industrially

  5. Genome editing: The efficient tool CRISPR–Cpf1

    KAUST Repository

    Mahfouz, Magdy M.

    2017-03-01

    The novel features of the CRISPR–Cpf1 RNA-guided endonuclease system facilitate precise and efficient genome engineering. Application of CRISPR–Cpf1 in plants shows promise for robust gene editing and regulation, opening exciting possibilities for targeted trait improvement in crops.

  6. Test Review: The Profile of Mood States 2nd Edition

    Science.gov (United States)

    Lin, Shuqiong; Hsiao, Yu-Yu; Wang, Miao

    2014-01-01

    The "Profile of Mood States 2nd Edition" (POMS 2) was published in 2012 by Multi-Health Systems (MHS) to assess transient feelings and mood among individuals aged 13 years and above. Evolving from the original POMS (McNair, Lorr, & Droppleman, 1971, 1992), the POMS 2 was designed for youth (13-17 years old) and adults (18 years old…

  7. Easy Steps to STAIRS. 2nd Revised Edition.

    Science.gov (United States)

    National Library of Australia, Canberra.

    This manual for computer searchers describes the software package--IBM's STAIRS (Storage And Information Retrieval System)--used for searching databases in AUSINET (AUStralian Information NETwork). Whereas the first edition explained STAIRS in the context of the National Library's Online ERIC Project and the ERIC data base, this second edition…

  8. Photovoltaic programme, edition 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    This comprehensive publication issued by the Swiss Federal Office of Energy's Photovoltaics (PV) Programme presents an overview (in English) of activities and projects in the photovoltaics research and pilot and demonstration areas in Switzerland for the year 2003. Progress in future solar cell technologies as well as in the area of modules, building integration and system technologies is summarised. Also, national and international co-operation and multi-national pilot and demonstration projects are commented on. Associated projects such as eco-balances for PV systems, forecasting and modelling tools as well as system monitoring tools are discussed. In the area of pilot and demonstration projects, component development, PV integration in sloping roofs, on flat roofs and on facades as well as further PV plant are looked at. Also, measurement campaigns, studies, statistics and other PV-related topics are summarised. This volume presents a list of 92 projects in the PV area including the appropriate Internet links and is completed with a collection of project abstracts.

  9. Using case studies and videotaped vignettes to facilitate the development of critical thinking skills in new graduate nurses.

    Science.gov (United States)

    Hooper, Barbara L

    2014-01-01

    Critical thinking skills are an essential component of nursing and crucial to nursing practice. Case studies with videotaped vignettes were used to help facilitate the development of critical thinking skills in new graduate nurses. Results revealed a statistically significant increase (p = .041) on the overall Health Sciences Reasoning Test score. It is essential for educators to be aware of educational strategies that can affect the development of critical thinking skills.

  10. Editing as a psychological practice.

    Science.gov (United States)

    Beebe, John

    2006-06-01

    The experience of the Jungian analyst in the role of editor of manuscripts by creative colleagues is examined. Historical precedents include Michael Fordham's editorial correspondence with Jung around the latter's synchronicity essay; Jung's handling of manuscripts submitted by Sabina Spielrein to the Jahrbuch für psychoanalytische und psychopathologische Forschungen and various authors to the Zentralblatt für Psychotherapie und ihre Grenzgebiete, and the author's close editing of a paper submitted by Andrew Samuels to the Journal of Analytical Psychology. In addition to mustering an adequate amount of generosity, erudition, and availability, the analytic editor must know how to clarify a psychological argument and to gauge the psychological impact of the written text. Notwithstanding transference/countertransference phenomena that can emerge around issues of competition, envy, and territoriality when author and editor are also fellow-authors working in the same field, the editor needs to be comfortable about serving as the author's selfobject and midwife. From an analytic perspective, although communicating decisions about the best way to put ideas into words can sometimes attract transference to the editor, the more profound transference that analysts experience in the editing situation is toward the text being edited, which helps to motivate donated time spent caring for journal manuscripts.

  11. Jeff's Reef Oculina Banks Clelia Dive 607 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  12. Eau Gallie, Oculina Banks Clelia Dive 608 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  13. Sebastian Pinnacles Oculina Banks Clelia Dive 618 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  14. Cape Canaveral Oculina Banks Clelia Dive 616 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  15. Chapman's Reef Oculina Banks Clelia Dive 620 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  16. Sebastian Pinnacles, Oculina Banks Clelia Dive 614 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  17. Sebastian Pinnacles, Oculina Banks Clelia Dive 615 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  18. Eau Galllie Oculina Banks Clelia Dive 609 2001 Digital Imagery - Captured from Videotapes tken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  19. Chapman's Reef Oculina Banks Clelia Dive 621 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  20. Jeff's Reef Oculina Banks Clelia Dive 606 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  1. Cocoa Beach Oculina Banks Clelia Dive 617 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  2. Sebastian Pinnacles Oculina Banks Clelia Dive 619 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  3. In search of beneficial coding RNA editing.

    Science.gov (United States)

    Xu, Guixia; Zhang, Jianzhi

    2015-02-01

    RNA editing is a posttranscriptional modification that can lead to a change in the encoded protein sequence of a gene. Although a few cases of mammalian coding RNA editing are known to be functionally important, the vast majority of over 2,000 A-to-I editing sites that have been identified from the coding regions of the human genome are likely nonadaptive, representing tolerable promiscuous targeting of editing enzymes. Finding the potentially tiny fraction of beneficial editing sites from the sea of mostly nearly neutral editing is a difficult but important task. Here, we propose and provide evidence that evolutionarily conserved or "hardwired" residues that experience high-level nonsynonymous RNA editing in a species are enriched with beneficial editing. This simple approach allows the prediction of sites where RNA editing is functionally important. We suggest that priority be given to these candidates in future characterizations of the functional and fitness consequences of RNA editing. © The Author 2014. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  4. Comparison of Insertional RNA Editing in Myxomycetes

    Science.gov (United States)

    Chen, Cai; Frankhouser, David; Bundschuh, Ralf

    2012-01-01

    RNA editing describes the process in which individual or short stretches of nucleotides in a messenger or structural RNA are inserted, deleted, or substituted. A high level of RNA editing has been observed in the mitochondrial genome of Physarum polycephalum. The most frequent editing type in Physarum is the insertion of individual Cs. RNA editing is extremely accurate in Physarum; however, little is known about its mechanism. Here, we demonstrate how analyzing two organisms from the Myxomycetes, namely Physarum polycephalum and Didymium iridis, allows us to test hypotheses about the editing mechanism that can not be tested from a single organism alone. First, we show that using the recently determined full transcriptome information of Physarum dramatically improves the accuracy of computational editing site prediction in Didymium. We use this approach to predict genes in the mitochondrial genome of Didymium and identify six new edited genes as well as one new gene that appears unedited. Next we investigate sequence conservation in the vicinity of editing sites between the two organisms in order to identify sites that harbor the information for the location of editing sites based on increased conservation. Our results imply that the information contained within only nine or ten nucleotides on either side of the editing site (a distance previously suggested through experiments) is not enough to locate the editing sites. Finally, we show that the codon position bias in C insertional RNA editing of these two organisms is correlated with the selection pressure on the respective genes thereby directly testing an evolutionary theory on the origin of this codon bias. Beyond revealing interesting properties of insertional RNA editing in Myxomycetes, our work suggests possible approaches to be used when finding sequence motifs for any biological process fails. PMID:22383871

  5. Photovoltaic programme - edition 2003

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    This publication issued by the Swiss Federal Office of Energy's Photovoltaics (PV) Programme presents an overview (in English) of activities and projects in the photovoltaics research and pilot and demonstration area in Switzerland. Progress in the area of future solar cell technologies, modules and building integration, system technologies, planning and operating aids is summarised. Also, PV for applications in developing countries, thermo-photovoltaics and international co-operation are commented on. In the area of pilot and demonstration projects, component development, PV integration in sloping roofs, on flat roofs and noise barriers as well as further PV plant are looked at. Also, measurement campaigns, studies, statistics and further PV-related topics are summarised. This volume also presents the abstracts of reports made by the project managers of 73 research and pilot and demonstration projects in these areas for 2002.

  6. Observing Optional Number in DDC Edition 23

    Directory of Open Access Journals (Sweden)

    Mohamad Rotmianto

    2015-04-01

    Full Text Available Dewey Decimal Classification is a most popular classification system in the world because of its completeness and most up-to-date. There are many optional number in this classification system, although it rarely to be discussed even it is important to known well about that optional number, especially  for  a  librarian  as  classifier.  This  paper  is  a  literature  study  about  Dewey  Decimal Classification  Edition  23,  to  describe  about  optional  numbers,  particularly  the  number  in relationship with Indonesia’s subject and discipline. This paper is to avoid misunderstanding in interpreted about optional number among librarians, especially for who that does not understand well about optional numbers.

  7. WYLBUR reference manual. [For interactive text editing

    Energy Technology Data Exchange (ETDEWEB)

    Krupp, R.F.; Messina, P.C.; Peavler, J.M.; Schustack, S.; Starai, T.

    1977-04-01

    WYLBUR is a system for manipulating various kinds of text, such as computer programs, manuscripts, letters, forms, articles, or reports. Its on-line interactive text-editing capabilities allow the user to create, change, and correct text, and to search and display it. WYLBUR also has facilities for job submission and retrieval from remote terminals that make it possible for a user to inquire about the status of any job in the system, cancel jobs that are executing or awaiting execution, reroute output, raise job priority, or get information on the backlog of batch jobs. WYLBUR also has excellent recovery capabilities and a fast response time. This manual describes the WYLBUR version currently used at ANL. It is intended primarily as a reference manual; thus, examples of WYLBUR commands are kept to a minimum. (RWR)

  8. [The application of genome editing in identification of plant gene function and crop breeding].

    Science.gov (United States)

    Zhou, Xiang-chun; Xing, Yong-zhong

    2016-03-01

    Plant genome can be modified via current biotechnology with high specificity and excellent efficiency. Zinc finger nucleases (ZFN), transcription activator-like effector nucleases (TALEN) and clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated 9 (Cas9) system are the key engineered nucleases used in the genome editing. Genome editing techniques enable gene targeted mutagenesis, gene knock-out, gene insertion or replacement at the target sites during the endogenous DNA repair process, including non-homologous end joining (NHEJ) and homologous recombination (HR), triggered by the induction of DNA double-strand break (DSB). Genome editing has been successfully applied in the genome modification of diverse plant species, such as Arabidopsis thaliana, Oryza sativa, and Nicotiana tabacum. In this review, we summarize the application of genome editing in identification of plant gene function and crop breeding. Moreover, we also discuss the improving points of genome editing in crop precision genetic improvement for further study.

  9. Dynamic Presentation of Long Term Upper Ocean Study (LOTUS) Data Using Videotape.

    Science.gov (United States)

    1986-09-01

    8217..,, Il OOM 14000M 7 5000M 40007 Figure 3. Schematic showing a surface and a near surface mooring typical of those used in LOTUS with instruments at...command files passed vari- ables to the command file that ran PROSPECT, and allowed many runs to be done together in one overnight batch job. Usually 10-20...of the time periods were done in one night. The command files were large and cumbersome to edit, but were worth the effort in run time saved. D

  10. Methods and Applications of CRISPR-Mediated Base Editing in Eukaryotic Genomes.

    Science.gov (United States)

    Hess, Gaelen T; Tycko, Josh; Yao, David; Bassik, Michael C

    2017-10-05

    The past several years have seen an explosion in development of applications for the CRISPR-Cas9 system, from efficient genome editing, to high-throughput screening, to recruitment of a range of DNA and chromatin-modifying enzymes. While homology-directed repair (HDR) coupled with Cas9 nuclease cleavage has been used with great success to repair and re-write genomes, recently developed base-editing systems present a useful orthogonal strategy to engineer nucleotide substitutions. Base editing relies on recruitment of cytidine deaminases to introduce changes (rather than double-stranded breaks and donor templates) and offers potential improvements in efficiency while limiting damage and simplifying the delivery of editing machinery. At the same time, these systems enable novel mutagenesis strategies to introduce sequence diversity for engineering and discovery. Here, we review the different base-editing platforms, including their deaminase recruitment strategies and editing outcomes, and compare them to other CRISPR genome-editing technologies. Additionally, we discuss how these systems have been applied in therapeutic, engineering, and research settings. Lastly, we explore future directions of this emerging technology. Copyright © 2017 Elsevier Inc. All rights reserved.

  11. Technology Catalogue. First edition

    Energy Technology Data Exchange (ETDEWEB)

    1994-02-01

    The Department of Energy`s Office of Environmental Restoration and Waste Management (EM) is responsible for remediating its contaminated sites and managing its waste inventory in a safe and efficient manner. EM`s Office of Technology Development (OTD) supports applied research and demonstration efforts to develop and transfer innovative, cost-effective technologies to its site clean-up and waste management programs within EM`s Office of Environmental Restoration and Office of Waste Management. The purpose of the Technology Catalogue is to provide performance data on OTD-developed technologies to scientists and engineers assessing and recommending technical solutions within the Department`s clean-up and waste management programs, as well as to industry, other federal and state agencies, and the academic community. OTD`s applied research and demonstration activities are conducted in programs referred to as Integrated Demonstrations (IDs) and Integrated Programs (IPs). The IDs test and evaluate.systems, consisting of coupled technologies, at specific sites to address generic problems, such as the sensing, treatment, and disposal of buried waste containers. The IPs support applied research activities in specific applications areas, such as in situ remediation, efficient separations processes, and site characterization. The Technology Catalogue is a means for communicating the status. of the development of these innovative technologies. The FY93 Technology Catalogue features technologies successfully demonstrated in the field through IDs and sufficiently mature to be used in the near-term. Technologies from the following IDs are featured in the FY93 Technology Catalogue: Buried Waste ID (Idaho National Engineering Laboratory, Idaho); Mixed Waste Landfill ID (Sandia National Laboratories, New Mexico); Underground Storage Tank ID (Hanford, Washington); Volatile organic compound (VOC) Arid ID (Richland, Washington); and VOC Non-Arid ID (Savannah River Site, South Carolina).

  12. Connectivity editing for quad-dominant meshes

    KAUST Repository

    Peng, Chihan

    2013-08-01

    We propose a connectivity editing framework for quad-dominant meshes. In our framework, the user can edit the mesh connectivity to control the location, type, and number of irregular vertices (with more or fewer than four neighbors) and irregular faces (non-quads). We provide a theoretical analysis of the problem, discuss what edits are possible and impossible, and describe how to implement an editing framework that realizes all possible editing operations. In the results, we show example edits and illustrate the advantages and disadvantages of different strategies for quad-dominant mesh design. © 2013 The Author(s) Computer Graphics Forum © 2013 The Eurographics Association and John Wiley & Sons Ltd.

  13. Using video-taped examples of standardized patient to teach medical students taking informed consent

    Directory of Open Access Journals (Sweden)

    SHIRIN HABIBI KHORASANI

    2015-04-01

    Full Text Available Introduction: Medical student should be trained in medical ethics and one of the most essential issues in this field is taking informed consents. In this research, we compared the effect of effectiveness of teaching methods on students’ ability in taking informed consent from patients. Methods: This semi-experimental study was carried out on fifty eight subjects from the 4th-year students of Shiraz University of Medical Sciences who attended in medical ethics course before their ‘clinical clerkship’training.Method of sampling was census and students were randomly allocated into two groups of control group (n=28 was trained in traditional lecture-based class and the case groupnamed as A1 (n=22 were taught by video-taped examples of standardized patient.Then A1 group attended in traditional lecture-based classes named as A2. The groups were evaluated in terms the ability of recognition of ethical issues through the scenario based ethical examination before and after each training. Scenarios were related to the topics of informed consent. Data were analyzed by SPSS 14 software using descriptive statistics and anova test. P-value less than 0.05 was considered as significant. Results: The mean scores results of A2, A1 and B group were found to be 7.21, 5.91 and 5.73 out of 8, respectively. Comparison between the groups demonstrated that the ability of taking informed consent was significantly higher in A2 group (p<0.001, followed by A1 group (p<0.05, while was the least in the B group (p=0.875. Conclusion: According to this research, lecture-based teaching is still of great value in teaching medical ethics, but when combined with standardized patient, the outcome will be much better. It should be considered that mixed methods of teaching should be used together for better result.

  14. MANAJEMEN EDITING POST PRODUCTION PROGRAM CURRENT AFFAIR DI TVONE

    Directory of Open Access Journals (Sweden)

    Ridho Azlam Ambo Asse

    2016-11-01

    Full Text Available Management is the art of completing the work through others. In an organization there are various components that are structured and coordinated in the movement toward shared vision and mission. Management is looking for that component to move under coordination, pressure, and problems that hit. Editing management, especially for the current affair type program, has a special purpose. Not just the speed of productivity that is based on the ability of individual editors. This research is done to know the process of stage editor in work. The process of managing files, data management, human resources, tools, facilities, scheduling, until the pattern of editing stage in one of the national media industry. This study concludes that the current affair program management editing system based on the concept of planning, organizing, implementation, supervision, and productivity management is done by Top Down method from top to bottom in the management of currenf affair tvOne editing program. What gets from above during a pre-production meeting of a program. Then coordinate with the supervisor and then delegate down to be implemented according to the agreed plan and in accordance with the duties and functions of both the production team and the editor.   Manajemen merupakan seni menyelesaikan pekerjaan melalui orang lain. Dalam sebuah organisasi terdapat berbagai macam komponen yang terstruktur dan terkordinasi dalam gerakan menuju visi dan misi bersama. Manajemen ialah mencari agar komponen tersebut dapat bergerak dibawah koordinasi, tekanan, dan masalah yang menerpa. Manajemen editing khususnya untuk program berjenis current affair, memiliki tujuan khusus. Tidak sekedar kecepatan produktifitas yang didasarkan pada kemampuan individu editor. Penelitian yang dilakukan ini untuk mengetahui proses tahapan editor dalam bekerja. Proses mengelola file, pengelolaan data, sumber daya manusia, alat, fasilitas, penjadwalan, hingga pola tahapan editing pada salah

  15. A method to identify RNA A-to-I editing targets using I-specific cleavage and exon array analysis.

    Science.gov (United States)

    Tseng, Chao-Neng; Chang, Hsueh-Wei; Stocker, Joel; Wang, Hui-Chun; Lu, Chiu-Chin; Wu, Cheng-Hsuan; Yang, Jyuer-Ger; Cho, Chung-Lung; Huang, Hurng-Wern

    2013-02-01

    RNA A-to-I editing is the most common single-base editing in the animal kingdom. Dysregulations of RNA A-to-I editing are associated with developmental defects in mouse and human diseases. Mouse knockout models deficient in ADAR activities show lethal phenotypes associated with defects in nervous system, failure of hematopoiesis and reduced tolerance to stress. While several methods of identifying RNA A-to-I editing sites are currently available, most of the critical editing targets responsible for the important biological functions of ADARs remain unknown. Here we report a method to systematically analyze RNA A-to-I editing targets by combining I-specific cleavage and exon array analysis. Our results show that I-specific cleavage on editing sites causes more than twofold signal reductions in edited exons of known targets such as Gria2, Htr2c, Gabra3 and Cyfip2 in mice. This method provides an experimental approach for genome-wide analysis of RNA A-to-I editing targets with exon-level resolution. We believe this method will help expedite inquiry into the roles of RNA A-to-I editing in various biological processes and diseases. Copyright © 2012 Elsevier Ltd. All rights reserved.

  16. Antenna Systems and Electronic Warfare Applications. Edited by Richard A. Poisel, Artech House, 2012; 1036 pages. Price: £129.00, ISBN 978-1-60807-484-6

    Directory of Open Access Journals (Sweden)

    Shu-Kun Lin

    2013-01-01

    Full Text Available This comprehensive book serves as a one-stop resource for practical EW antenna system know-how. Supported with over 700 illustrations and nearly 1,700 equations, this authoritative reference offers you detailed explanations of all the important foundations and aspects of this technology. Moreover, you get an in-depth treatment of a wide range of antenna system applications. 

  17. Gene editing in clinical isolates of Candida parapsilosis using CRISPR/Cas9.

    Science.gov (United States)

    Lombardi, Lisa; Turner, Siobhán A; Zhao, Fang; Butler, Geraldine

    2017-08-14

    Candida parapsilosis is one of the most common causes of candidiasis, particularly in the very young and the very old. Studies of gene function are limited by the lack of a sexual cycle, the diploid genome, and a paucity of molecular tools. We describe here the development of a plasmid-based CRISPR-Cas9 system for gene editing in C. parapsilosis. A major advantage of the system is that it can be used in any genetic background, which we showed by editing genes in 20 different isolates. Gene editing is carried out in a single transformation step. The CAS9 gene is expressed only when the plasmid is present, and it can be removed easily from transformed strains. There is theoretically no limit to the number of genes that can be edited in any strain. Gene editing is increased by homology-directed repair in the presence of a repair template. Editing by non-homologous end joining (NHEJ) also occurs in some genetic backgrounds. Finally, we used the system to introduce unique tags at edited sites.

  18. Genome editing for crop improvement: Challenges and opportunities.

    Science.gov (United States)

    Abdallah, Naglaa A; Prakash, Channapatna S; McHughen, Alan G

    2015-01-01

    Genome or gene editing includes several new techniques to help scientists precisely modify genome sequences. The techniques also enables us to alter the regulation of gene expression patterns in a pre-determined region and facilitates novel insights into the functional genomics of an organism. Emergence of genome editing has brought considerable excitement especially among agricultural scientists because of its simplicity, precision and power as it offers new opportunities to develop improved crop varieties with clear-cut addition of valuable traits or removal of undesirable traits. Research is underway to improve crop varieties with higher yields, strengthen stress tolerance, disease and pest resistance, decrease input costs, and increase nutritional value. Genome editing encompasses a wide variety of tools using either a site-specific recombinase (SSR) or a site-specific nuclease (SSN) system. Both systems require recognition of a known sequence. The SSN system generates single or double strand DNA breaks and activates endogenous DNA repair pathways. SSR technology, such as Cre/loxP and Flp/FRT mediated systems, are able to knockdown or knock-in genes in the genome of eukaryotes, depending on the orientation of the specific sites (loxP, FLP, etc.) flanking the target site. There are 4 main classes of SSN developed to cleave genomic sequences, mega-nucleases (homing endonuclease), zinc finger nucleases (ZFNs), transcriptional activator-like effector nucleases (TALENs), and the CRISPR/Cas nuclease system (clustered regularly interspaced short palindromic repeat/CRISPR-associated protein). The recombinase mediated genome engineering depends on recombinase (sub-) family and target-site and induces high frequencies of homologous recombination. Improving crops with gene editing provides a range of options: by altering only a few nucleotides from billions found in the genomes of living cells, altering the full allele or by inserting a new gene in a targeted region of

  19. Therapeutic Gene Editing Safety and Specificity.

    Science.gov (United States)

    Lux, Christopher T; Scharenberg, Andrew M

    2017-10-01

    Therapeutic gene editing is significant for medical advancement. Safety is intricately linked to the specificity of the editing tools used to cut at precise genomic targets. Improvements can be achieved by thoughtful design of nucleases and repair templates, analysis of off-target editing, and careful utilization of viral vectors. Advancements in DNA repair mechanisms and development of new generations of tools improve targeting of specific sequences while minimizing risks. It is important to plot a safe course for future clinical trials. This article reviews safety and specificity for therapeutic gene editing to spur dialogue and advancement. Copyright © 2017 Elsevier Inc. All rights reserved.

  20. Graph edit distance from spectral seriation.

    Science.gov (United States)

    Robles-Kelly, Antonio; Hancock, Edwin R

    2005-03-01

    This paper is concerned with computing graph edit distance. One of the criticisms that can be leveled at existing methods for computing graph edit distance is that they lack some of the formality and rigor of the computation of string edit distance. Hence, our aim is to convert graphs to string sequences so that string matching techniques can be used. To do this, we use a graph spectral seriation method to convert the adjacency matrix into a string or sequence order. We show how the serial ordering can be established using the leading eigenvector of the graph adjacency matrix. We pose the problem of graph-matching as a maximum a posteriori probability (MAP) alignment of the seriation sequences for pairs of graphs. This treatment leads to an expression in which the edit cost is the negative logarithm of the a posteriori sequence alignment probability. We compute the edit distance by finding the sequence of string edit operations which minimizes the cost of the path traversing the edit lattice. The edit costs are determined by the components of the leading eigenvectors of the adjacency matrix and by the edge densities of the graphs being matched. We demonstrate the utility of the edit distance on a number of graph clustering problems.

  1. RNAEditor: easy detection of RNA editing events and the introduction of editing islands.

    Science.gov (United States)

    John, David; Weirick, Tyler; Dimmeler, Stefanie; Uchida, Shizuka

    2017-11-01

    RNA editing of adenosine residues to inosine ('A-to-I editing') is the most common RNA modification event detectible with RNA sequencing (RNA-seq). While not directly detectable, inosine is read by next-generation sequencers as guanine. Therefore, mapping RNA-seq reads to their corresponding reference genome can detect potential editing events by identifying 'A-to-G' conversions. However, one must exercise caution when searching for editing sites, as A-to-G conversions also arise from sequencing errors as well as mutations. To address these complexities, several algorithms and software products have been developed to accurately identify editing events. Here, we survey currently available methods to analyze RNA editing events and introduce a new easy-to-use bioinformatics tool 'RNAEditor' for the detection of RNA editing events. During the development of RNAEditor, we noticed editing often happened in clusters, which we named 'editing islands'. We developed a clustering algorithm to find editing islands and included it in RNAEditor. RNAEditor is freely available at http://rnaeditor.uni-frankfurt.de. We anticipate that RNAEditor will provide biologists with an easy-to-use tool for studying RNA editing events and the newly defined editing islands. © The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  2. Introduction to Modern EW Systems. Edited by Andrea De Martino, Artech House, 2012; 417 pages. Price: £119.00, ISBN 978-1-60807-207-1

    Directory of Open Access Journals (Sweden)

    Shu-Kun Lin

    2013-01-01

    Full Text Available Master the latest electronic warfare (EW techniques and technologies related to on-board military platforms with this authoritative resource. You gain expert design guidance on technologies and equipment used to detect and identify emitter threats, giving you an advantage in the never-ending chess game between sensor guided weapons and EW systems. This unique book offers you deeper insight into EW systems principles of operation and their mathematical descriptions, arming you with better knowledge for your specific design applications.

  3. GPU Computing Gems Emerald Edition

    CERN Document Server

    Hwu, Wen-mei W

    2011-01-01

    ".the perfect companion to Programming Massively Parallel Processors by Hwu & Kirk." -Nicolas Pinto, Research Scientist at Harvard & MIT, NVIDIA Fellow 2009-2010 Graphics processing units (GPUs) can do much more than render graphics. Scientists and researchers increasingly look to GPUs to improve the efficiency and performance of computationally-intensive experiments across a range of disciplines. GPU Computing Gems: Emerald Edition brings their techniques to you, showcasing GPU-based solutions including: Black hole simulations with CUDA GPU-accelerated computation and interactive display of

  4. Catalogue of Cometary Orbits 1995. Tenth edition.

    Science.gov (United States)

    Marsden, B. G.; Williams, G. V.

    This tenth edition of the Catalogue of Cometary Orbits differs from its predecessors in that it utilizes the new cometary designation system that took effect at the beginning of 1995, adopted by the IAU in August 1994. It contains 1472 orbits for 1444 cometary apparitions and is intended to be complete for comets observed through the end of 1994. Contents: 1. Introduction. 2. General catalogue (long-period and unnumbered periodic comets, numbered periodic comets). 3. Identifications. 4. 1995 elements for numbered periodic comets. 5. Statistical tables (periodic comets of more than one appearance, periodic comets of only one appearance, comets that may be of short period, parabolic and nearly-parabolic orbits in order of i). 6. Correspondence of new-style and old-style designations (by Roman numeral, by letter designation). 7. X/comets.

  5. SOLCOST. Solar Hot Water Handbook. A Simplified Design Method for Sizing and Costing Residential and Commercial Solar Service Hot Water Systems. Second Edition.

    Science.gov (United States)

    Energy Research and Development Administration, Washington, DC. Div. of Solar Energy.

    This pamphlet offers a preview of information services available from Solcost, a research and development project. The first section explains that Solcost calculates system and costs performance for solar heated and cooled new and retrofit constructions, such as residential buildings and single zone commercial buildings. For a typical analysis,…

  6. Response to Intervention and Continuous School Improvement: How to Design, Implement, Monitor, and Evaluate a School-Wide Prevention System, 2nd Edition

    Science.gov (United States)

    Bernhardt, Victoria L.; Hébert, Connie L.

    2017-01-01

    Experts Bernhardt and Hébert's latest book demonstrates strategies to ensure your entire staff works together to design, implement, monitor, and evaluate a schoolwide prevention system with integrity and fidelity. Each step in this important resource is designed to help administrators, teachers, and other educators improve the learning of every…

  7. Non-Invasive Evaluation of the GABAergic/Glutamatergic System in Autistic Patients Observed by MEGA-Editing Proton MR Spectroscopy Using a Clinical 3 Tesla Instrument

    Science.gov (United States)

    Harada, Masafumi; Taki, Masako M.; Nose, Ayumi; Kubo, Hitoshi; Mori, Kenji; Nishitani, Hiromu; Matsuda, Tsuyoshi

    2011-01-01

    Amino acids related to neurotransmitters and the GABAergic/glutamatergic system were measured using a 3 T-MRI instrument in 12 patients with autism and 10 normal controls. All measurements were performed in the frontal lobe (FL) and lenticular nuclei (LN) using a conventional sequence for n-acetyl aspartate (NAA) and glutamate (Glu), and the…

  8. The CRISPR/Cas Genome-Editing Tool: Application in Improvement of Crops

    OpenAIRE

    KHATODIA, Surender; Bhatotia, Kirti; Passricha, Nishat; Khurana, S. M. P.; Tuteja, Narendra

    2016-01-01

    The Clustered Regularly Interspaced Short Palindromic Repeats associated Cas9/sgRNA system is a novel targeted genome-editing technique derived from bacterial immune system. It is an inexpensive, easy, most user friendly and rapidly adopted genome editing tool transforming to revolutionary paradigm. This technique enables precise genomic modifications in many different organisms and tissues. Cas9 protein is an RNA guided endonuclease utilized for creating targeted double-stranded breaks with ...

  9. Consumer acceptance of food crops developed by genome editing.

    Science.gov (United States)

    Ishii, Tetsuya; Araki, Motoko

    2016-07-01

    One of the major problems regarding consumer acceptance of genetically modified organisms (GMOs) is the possibility that their transgenes could have adverse effects on the environment and/or human health. Genome editing, represented by the CRISPR/Cas9 system, can efficiently achieve transgene-free gene modifications and is anticipated to generate a wide spectrum of plants. However, the public attitude against GMOs suggests that people will initially be unlikely to accept these plants. We herein explored the bottlenecks of consumer acceptance of transgene-free food crops developed by genome editing and made some recommendations. People should not pursue a zero-risk bias regarding such crops. Developers are encouraged to produce cultivars with a trait that would satisfy consumer needs. Moreover, they should carefully investigate off-target mutations in resultant plants and initially refrain from agricultural use of multiplex genome editing for better risk-benefit communication. The government must consider their regulatory status and establish appropriate regulations if necessary. The government also should foster communication between the public and developers. If people are informed of the benefits of genome editing-mediated plant breeding and trust in the relevant regulations, and if careful risk-benefit communication and sincere considerations for the right to know approach are guaranteed, then such transgene-free crops could gradually be integrated into society.

  10. Peer editing: a strategic source in EFL students’ writing process

    Directory of Open Access Journals (Sweden)

    Nubia Mercedes Díaz Galvis

    2011-06-01

    Full Text Available This article reports on a research project focused on peer editing as a pedagogical tool to promote collaborative assessment in the EFL writing process. With teachers overstretched in the Bogotá public school system, a method needed to be found that would allow students to receive much needed feedback without overtaxing the teachers` resources. Peer editing, a phenomenon that often occurs naturally within the classroom, was therefore systematically implemented as a solution to the stated problem. The main aims of this study, conducted with a group of ninth grade student at a public school in Bogotá, were to determine the role of peer editing in the writing process and to characterize the relationships built when students corrected each others writings. The instruments used for collecting data were field notes, video recordings and students’ artifacts. The results showed that when students were engaged in peer editing sessions they created zones of proximal development in which high achiever students provided linguistic scaffolding and empowered low achievers. It was also found that students used thinking strategies such as noticing and explaining when they identified errors related to the formal aspects of the language.

  11. Genome-editing Technologies for Gene and Cell Therapy.

    Science.gov (United States)

    Maeder, Morgan L; Gersbach, Charles A

    2016-03-01

    Gene therapy has historically been defined as the addition of new genes to human cells. However, the recent advent of genome-editing technologies has enabled a new paradigm in which the sequence of the human genome can be precisely manipulated to achieve a therapeutic effect. This includes the correction of mutations that cause disease, the addition of therapeutic genes to specific sites in the genome, and the removal of deleterious genes or genome sequences. This review presents the mechanisms of different genome-editing strategies and describes each of the common nuclease-based platforms, including zinc finger nucleases, transcription activator-like effector nucleases (TALENs), meganucleases, and the CRISPR/Cas9 system. We then summarize the progress made in applying genome editing to various areas of gene and cell therapy, including antiviral strategies, immunotherapies, and the treatment of monogenic hereditary disorders. The current challenges and future prospects for genome editing as a transformative technology for gene and cell therapy are also discussed.

  12. Economics and engineering of large-scale algae biomass energy systems. Opportunity brief No. 11. Report No. 78-11. Revised edition

    Energy Technology Data Exchange (ETDEWEB)

    Doelling, N

    1978-05-01

    The goal of fuels from biomass is to investigate sources of energy on a scale that could provide around 5% of the national energy needs around 1990. The goal of this brief is to outline the current state of the art and the potential of aquatic plant biomass systems over the next 3 to 5 years, and to suggest industrial development and research opportunities. (DC)

  13. KEIMS utility manual (edition 1.0)

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Yeun Seung; Eom, Young Sam; Choi, Jin Yeup; Nam, Ji Hwa [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1996-06-01

    Since 1987 when KAERI had started Yonggwang 3 and 4 NSSS system design project, KAERI has carried out so many NSSS system design projects such as Ulchin 3 and 4, Wolsong 2, 3 and 4 and Yonggwang 5 and 6 with fixed members that necessity of increasing productivity has been raised. To improve design work efficiency, it was considered that computerization of workflow which took so much man-power and business time. As result of investigation of design workflow to reduce man-power loss. It was suggested that DDA (Document Distribution for Agreement) workflow, design document stored in DDCD (Document Distribution and Control Center), IOC (Interoffice Correspondence) document, Letter, PM Memo should be preferentially computerized. On the basis of these computerization requirements, MEDIS (Modular Engineering Document Imaging System) was selected. Prototype had been implemented during 1995.9 -1995.12, and from 1996.1 KEIMS (KAERI Engineering Information Management System) has been operated. This MEDIS system utility manual was composed of several technical memos which has been described on customization of MEDIS fit to KEIMS, program development for system check, and information control of database. Further edition would be released as utility technical memo added. (Author) .new.

  14. The CRISPR/Cas genome-editing tool: application in improvement of crops

    Directory of Open Access Journals (Sweden)

    SURENDER eKHATODIA

    2016-04-01

    Full Text Available The Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR associated Cas9/sgRNA system is a novel fledgling targeted genome-editing technique from bacterial immune system, which is a cheap, easy and most rapidly adopted genome editing tool transforming to revolutionary paradigm. Cas9 protein is an RNA guided endonuclease utilized for creating targeted double stranded breaks with only a short RNA sequence to confer recognition of the target in animals and plants. Development of genetically edited (GE crops similar to those developed by conventional or mutation breeding using this potential technique makes it a promising and extremely versatile tool for providing sustainable productive agriculture for better feeding of rapidly growing population in changing climate. The emerging areas of research for the genome editing in plants are like, interrogating gene function, rewiring the regulatory signaling networks, sgRNA library for high-throughput loss-of-function screening. In this review, we will discuss the broad applicability of the Cas9 nuclease mediated targeted plant genome editing for development of designer crops. The regulatory uncertainty and social acceptance of plant breeding by Cas9 genome editing have also been discussed. The non-GM designer genetically edited plants could prospect climate resilient and sustainable energy agriculture in coming future for maximizing the yield by combating abiotic and biotic stresses with this new innovative plant breeding technique.

  15. CRISPR-Cas9-Edited Site Sequencing (CRES-Seq): An Efficient and High-Throughput Method for the Selection of CRISPR-Cas9-Edited Clones.

    Science.gov (United States)

    Veeranagouda, Yaligara; Debono-Lagneaux, Delphine; Fournet, Hamida; Thill, Gilbert; Didier, Michel

    2018-01-16

    The emergence of clustered regularly interspaced short palindromic repeats-Cas9 (CRISPR-Cas9) gene editing systems has enabled the creation of specific mutants at low cost, in a short time and with high efficiency, in eukaryotic cells. Since a CRISPR-Cas9 system typically creates an array of mutations in targeted sites, a successful gene editing project requires careful selection of edited clones. This process can be very challenging, especially when working with multiallelic genes and/or polyploid cells (such as cancer and plants cells). Here we described a next-generation sequencing method called CRISPR-Cas9 Edited Site Sequencing (CRES-Seq) for the efficient and high-throughput screening of CRISPR-Cas9-edited clones. CRES-Seq facilitates the precise genotyping up to 96 CRISPR-Cas9-edited sites (CRES) in a single MiniSeq (Illumina) run with an approximate sequencing cost of $6/clone. CRES-Seq is particularly useful when multiple genes are simultaneously targeted by CRISPR-Cas9, and also for screening of clones generated from multiallelic genes/polyploid cells. © 2018 by John Wiley & Sons, Inc. Copyright © 2018 John Wiley & Sons, Inc.

  16. The Aldine Edition of Aristotle's De Sensu

    DEFF Research Database (Denmark)

    Bloch, David Kristian

    2006-01-01

    This small article examines the quality of and the textual foundation for the først printed edition ever of Aristotle's De Sensu et Sensibilibus, that is, Aldus Manutius' (1497).......This small article examines the quality of and the textual foundation for the først printed edition ever of Aristotle's De Sensu et Sensibilibus, that is, Aldus Manutius' (1497)....

  17. Sex Differences in Cognitive Abilities. Fourth Edition

    Science.gov (United States)

    Halpern, Diane F.

    2011-01-01

    The fourth edition of "Sex Differences in Cognitive Abilities" critically examines the breadth of research on this complex and controversial topic, with the principal aim of helping the reader to understand where sex differences are found--and where they are not. Since the publication of the third edition, there have been many exciting and…

  18. Accounting for Independent Schools. Second Edition.

    Science.gov (United States)

    National Association of Independent Schools, Boston, MA.

    This is a thoroughly revised edition of the 1969 publication, "Accounting for Independent Schools," a guide that attempted to codify basic accounting principles and practices for specific application to independent schools. The focus of the second edition is more on refining practices than on initiating them, and more on extending the managerial…

  19. Novel modes of RNA editing in mitochondria.

    Science.gov (United States)

    Moreira, Sandrine; Valach, Matus; Aoulad-Aissa, Mohamed; Otto, Christian; Burger, Gertraud

    2016-06-02

    Gene structure and expression in diplonemid mitochondria are unparalleled. Genes are fragmented in pieces (modules) that are separately transcribed, followed by the joining of module transcripts to contiguous RNAs. Some instances of unique uridine insertion RNA editing at module boundaries were noted, but the extent and potential occurrence of other editing types remained unknown. Comparative analysis of deep transcriptome and genome data from Diplonema papillatum mitochondria reveals ∼220 post-transcriptional insertions of uridines, but no insertions of other nucleotides nor deletions. In addition, we detect in total 114 substitutions of cytosine by uridine and adenosine by inosine, amassed into unusually compact clusters. Inosines in transcripts were confirmed experimentally. This is the first report of adenosine-to-inosine editing of mRNAs and ribosomal RNAs in mitochondria. In mRNAs, editing causes mostly amino-acid additions and non-synonymous substitutions; in ribosomal RNAs, it permits formation of canonical secondary structures. Two extensively edited transcripts were compared across four diplonemids. The pattern of uridine-insertion editing is strictly conserved, whereas substitution editing has diverged dramatically, but still rendering diplonemid proteins more similar to other eukaryotic orthologs. We posit that RNA editing not only compensates but also sustains, or even accelerates, ultra-rapid evolution of genome structure and sequence in diplonemid mitochondria. © The Author(s) 2016. Published by Oxford University Press on behalf of Nucleic Acids Research.

  20. Investigating RNA editing factors from trypanosome mitochondria.

    Science.gov (United States)

    Aphasizheva, Inna; Zhang, Liye; Aphasizhev, Ruslan

    2016-09-01

    Mitochondrial U-insertion/deletion mRNA editing is carried out by two principal multiprotein assemblies, enzymatic RNA editing core (RECC) and RNA editing substrate binding (RESC) complexes, and a plethora of auxiliary factors. An integral part of mitochondrial gene expression, editing receives inputs from primary mRNA and gRNA precursor processing pathways, and generates substrates for mRNA polyadenylation and translation. Although nearly all RECC-embedded enzymes have been implicated in specific editing reactions, the majority of proteins that populate the RESC are also essential for generating edited mRNAs. However, lack of recognizable motifs in RESC subunits limits the prowess of bioinformatics in guiding biochemical experiments and elucidating their specific biological functions. In this chapter, we describe a generic workflow for investigating mitochondrial mRNA editing in Trypanosoma brucei and focus on several methods that proved instrumental is assigning definitive functions to editing factors lacking known signature sequences. Copyright © 2016 Elsevier Inc. All rights reserved.

  1. On Mesh Editing, Manifold Learning, and Diffusion Wavelets

    Science.gov (United States)

    Rustamov, R. M.

    We spell out a formal equivalence between the naive Laplacian editing and semi-supervised learning by bi-Laplacian Regularized Least Squares. This allows us to write the solution to Laplacian mesh editing in a ‘closed’ form, based on which we introduce the Generalized Linear Editing (GLE). GLE has both naive Laplacian editing and gradient based editing as special cases. GLE allows using diffusion wavelets for mesh editing. We present preliminary experiments, and shortly discuss connections to segmentation.

  2. CRISPR-Cas9: from Genome Editing to Cancer Research.

    Science.gov (United States)

    Chen, Si; Sun, Heng; Miao, Kai; Deng, Chu-Xia

    2016-01-01

    Cancer development is a multistep process triggered by innate and acquired mutations, which cause the functional abnormality and determine the initiation and progression of tumorigenesis. Gene editing is a widely used engineering tool for generating mutations that enhance tumorigenesis. The recent developed clustered regularly interspaced short palindromic repeats-CRISPR-associated 9 (CRISPR-Cas9) system renews the genome editing approach into a more convenient and efficient way. By rapidly introducing genetic modifications in cell lines, organs and animals, CRISPR-Cas9 system extends the gene editing into whole genome screening, both in loss-of-function and gain-of-function manners. Meanwhile, the system accelerates the establishment of animal cancer models, promoting in vivo studies for cancer research. Furthermore, CRISPR-Cas9 system is modified into diverse innovative tools for observing the dynamic bioprocesses in cancer studies, such as image tracing for targeted DNA, regulation of transcription activation or repression. Here, we view recent technical advances in the application of CRISPR-Cas9 system in cancer genetics, large-scale cancer driver gene hunting, animal cancer modeling and functional studies.

  3. In vitro apolipoprotein B mRNA editing: identification of a 27S editing complex.

    Science.gov (United States)

    Smith, H C; Kuo, S R; Backus, J W; Harris, S G; Sparks, C E; Sparks, J D

    1991-01-01

    Specific apolipoprotein B (apoB) mRNA editing can be performed in vitro on apoB RNA substrates. Native gels and glycerol gradient sedimentation have been used to determine the physical properties of the in vitro editing activity in rat liver cytosolic S100 extracts. ApoB RNA substrates were progressively assembled as 27S complexes for 3 hr with similar kinetics as seen for the accumulation of edited RNA. Assembly was not observed on RNAs from apoB deletion constructs that did not support editing. The 27S complex contained both edited and unedited RNA sequences. Inhibition of 27S complex assembly by vanadyl-ribonucleoside complexes was accompanied by inhibition of editing. Based on these data, we propose that the 27S complex is the in vitro "editosome," A "mooring sequence" model for RNA recognition and editosome assembly has been proposed involving RNA sequences flanking the edited nucleotide. Images PMID:1996349

  4. Genetic Architectures of Quantitative Variation in RNA Editing Pathways.

    Science.gov (United States)

    Gu, Tongjun; Gatti, Daniel M; Srivastava, Anuj; Snyder, Elizabeth M; Raghupathy, Narayanan; Simecek, Petr; Svenson, Karen L; Dotu, Ivan; Chuang, Jeffrey H; Keller, Mark P; Attie, Alan D; Braun, Robert E; Churchill, Gary A

    2016-02-01

    RNA editing refers to post-transcriptional processes that alter the base sequence of RNA. Recently, hundreds of new RNA editing targets have been reported. However, the mechanisms that determine the specificity and degree of editing are not well understood. We examined quantitative variation of site-specific editing in a genetically diverse multiparent population, Diversity Outbred mice, and mapped polymorphic loci that alter editing ratios globally for C-to-U editing and at specific sites for A-to-I editing. An allelic series in the C-to-U editing enzyme Apobec1 influences the editing efficiency of Apob and 58 additional C-to-U editing targets. We identified 49 A-to-I editing sites with polymorphisms in the edited transcript that alter editing efficiency. In contrast to the shared genetic control of C-to-U editing, most of the variable A-to-I editing sites were determined by local nucleotide polymorphisms in proximity to the editing site in the RNA secondary structure. Our results indicate that RNA editing is a quantitative trait subject to genetic variation and that evolutionary constraints have given rise to distinct genetic architectures in the two canonical types of RNA editing. Copyright © 2016 by the Genetics Society of America.

  5. Identifying the Machine Translation Error Types with the Greatest Impact on Post-editing Effort.

    Science.gov (United States)

    Daems, Joke; Vandepitte, Sonia; Hartsuiker, Robert J; Macken, Lieve

    2017-01-01

    Translation Environment Tools make translators' work easier by providing them with term lists, translation memories and machine translation output. Ideally, such tools automatically predict whether it is more effortful to post-edit than to translate from scratch, and determine whether or not to provide translators with machine translation output. Current machine translation quality estimation systems heavily rely on automatic metrics, even though they do not accurately capture actual post-editing effort. In addition, these systems do not take translator experience into account, even though novices' translation processes are different from those of professional translators. In this paper, we report on the impact of machine translation errors on various types of post-editing effort indicators, for professional translators as well as student translators. We compare the impact of MT quality on a product effort indicator (HTER) with that on various process effort indicators. The translation and post-editing process of student translators and professional translators was logged with a combination of keystroke logging and eye-tracking, and the MT output was analyzed with a fine-grained translation quality assessment approach. We find that most post-editing effort indicators (product as well as process) are influenced by machine translation quality, but that different error types affect different post-editing effort indicators, confirming that a more fine-grained MT quality analysis is needed to correctly estimate actual post-editing effort. Coherence, meaning shifts, and structural issues are shown to be good indicators of post-editing effort. The additional impact of experience on these interactions between MT quality and post-editing effort is smaller than expected.

  6. Editing inducer elements increases A-to-I editing efficiency in the mammalian transcriptome.

    Science.gov (United States)

    Daniel, Chammiran; Widmark, Albin; Rigardt, Ditte; Öhman, Marie

    2017-10-23

    Adenosine to inosine (A-to-I) RNA editing has been shown to be an essential event that plays a significant role in neuronal function, as well as innate immunity, in mammals. It requires a structure that is largely double-stranded for catalysis but little is known about what determines editing efficiency and specificity in vivo. We have previously shown that some editing sites require adjacent long stem loop structures acting as editing inducer elements (EIEs) for efficient editing. The glutamate receptor subunit A2 is edited at the Q/R site in almost 100% of all transcripts. We show that efficient editing at the Q/R site requires an EIE in the downstream intron, separated by an internal loop. Also, other efficiently edited sites are flanked by conserved, highly structured EIEs and we propose that this is a general requisite for efficient editing, while sites with low levels of editing lack EIEs. This phenomenon is not limited to mRNA, as non-coding primary miRNAs also use EIEs to recruit ADAR to specific sites. We propose a model where two regions of dsRNA are required for efficient editing: first, an RNA stem that recruits ADAR and increases the local concentration of the enzyme, then a shorter, less stable duplex that is ideal for efficient and specific catalysis. This discovery changes the way we define and determine a substrate for A-to-I editing. This will be important in the discovery of novel editing sites, as well as explaining cases of altered editing in relation to disease.

  7. Highly Efficient Mouse Genome Editing by CRISPR Ribonucleoprotein Electroporation of Zygotes.

    Science.gov (United States)

    Chen, Sean; Lee, Benjamin; Lee, Angus Yiu-Fai; Modzelewski, Andrew J; He, Lin

    2016-07-08

    The CRISPR/Cas9 system has been employed to efficiently edit the genomes of diverse model organisms. CRISPR-mediated mouse genome editing is typically accomplished by microinjection of Cas9 DNA/RNA and single guide RNA (sgRNA) into zygotes to generate modified animals in one step. However, microinjection is a technically demanding, labor-intensive, and costly procedure with poor embryo viability. Here, we describe a simple and economic electroporation-based strategy to deliver Cas9/sgRNA ribonucleoproteins into mouse zygotes with 100% efficiency for in vivo genome editing. Our methodology, designated as CRISPR RNP Electroporation of Zygotes (CRISPR-EZ), enables highly efficient and high-throughput genome editing in vivo, with a significant improvement in embryo viability compared with microinjection. Using CRISPR-EZ, we generated a variety of editing schemes in mouse embryos, including indel (insertion/deletion) mutations, point mutations, large deletions, and small insertions. In a proof-of-principle experiment, we used CRISPR-EZ to target the tyrosinase (Tyr) gene, achieving 88% bi-allelic editing and 42% homology-directed repair-mediated precise sequence modification in live mice. Taken together, CRISPR-EZ is simple, economic, high throughput, and highly efficient with the potential to replace microinjection for in vivo genome editing in mice and possibly in other mammals. © 2016 by The American Society for Biochemistry and Molecular Biology, Inc.

  8. Therapeutic Genome Editing and its Potential Enhancement through CRISPR Guide RNA and Cas9 Modifications.

    Science.gov (United States)

    Batzir, Nurit Assia; Tovin, Adi; Hendel, Ayal

    2017-06-01

    Genome editing with engineered nucleases is a rapidly growing field thanks to transformative technologies that allow researchers to precisely alter genomes for numerous applications including basic research, biotechnology, and human gene therapy. The genome editing process relies on creating a site-specific DNA double-strand break (DSB) by engineered nucleases and then allowing the cell's repair machinery to repair the break such that precise changes are made to the DNA sequence. The recent development of CRISPR-Cas systems as easily accessible and programmable tools for genome editing accelerates the progress towards using genome editing as a new approach to human therapeutics. Here we review how genome editing using engineered nucleases works and how using different genome editing outcomes can be used as a tool set for treating human diseases. We then review the major challenges of therapeutic genome editing and we discuss how its potential enhancement through CRISPR guide RNA and Cas9 protein modifications could resolve some of these challenges. Copyright© of YS Medical Media ltd.

  9. Generation of germline ablated male pigs by CRISPR/Cas9 editing of the NANOS2 gene

    Science.gov (United States)

    Genome editing tools have revolutionized the generation of genetically modified animals including livestock. In particular, the domestic pig is a proven model of human physiology and an agriculturally important species. In this study, we utilized the CRISPR/Cas9 system to edit the NANOS2 gene in p...

  10. Laser beam shaping theory and techniques, second edition

    CERN Document Server

    Dickey, Fred M

    2014-01-01

    Laser Beam Shaping: Theory and Techniques addresses the theory and practice of every important technique for lossless beam shaping. Complete with experimental results as well as guidance on when beam shaping is practical and when each technique is appropriate, the Second Edition is updated to reflect significant developments in the field. This authoritative text:Features new chapters on axicon light ring generation systems, laser-beam-splitting (fan-out) gratings, vortex beams, and microlens diffusersDescribes the latest advances in beam profile measurement technology and laser beam shaping using diffractive diffusersContains new material on wavelength dependence, channel integrators, geometrical optics, and optical softwareLaser Beam Shaping: Theory and Techniques, Second Edition not only provides a working understanding of the fundamentals, but also offers insight into the potential application of laser-beam-profile shaping in laser system design.

  11. Genome Editing in Plants: An Overview of Tools and Applications

    Directory of Open Access Journals (Sweden)

    Venera S. Kamburova

    2017-01-01

    Full Text Available The emergence of genome manipulation methods promises a real revolution in biotechnology and genetic engineering. Targeted editing of the genomes of living organisms not only permits investigations into the understanding of the fundamental basis of biological systems but also allows addressing a wide range of goals towards improving productivity and quality of crops. This includes the creation of plants with valuable compositional properties and with traits that confer resistance to various biotic and abiotic stresses. During the past few years, several novel genome editing systems have been developed; these include zinc finger nucleases (ZFNs, transcription activator-like effector nucleases (TALENs, and clustered regularly interspaced short palindromic repeats/Cas9 (CRISPR/Cas9. These exciting new methods, briefly reviewed herein, have proved themselves as effective and reliable tools for the genetic improvement of plants.

  12. Editing of EIA coded, numerically controlled, machine tool tapes

    Science.gov (United States)

    Weiner, J. M.

    1975-01-01

    Editing of numerically controlled (N/C) machine tool tapes (8-level paper tape) using an interactive graphic display processor is described. A rapid technique required for correcting production errors in N/C tapes was developed using the interactive text editor on the IMLAC PDS-ID graphic display system and two special programs resident on disk. The correction technique and special programs for processing N/C tapes coded to EIA specifications are discussed.

  13. Progress in Genome Editing Technology and Its Application in Plants

    OpenAIRE

    Zhang, Kai; Raboanatahiry, Nadia; Zhu, Bin; Li, Maoteng

    2017-01-01

    Genome editing technology (GET) is a versatile approach that has progressed rapidly as a mechanism to alter the genotype and phenotype of organisms. However, conventional genome modification using GET cannot satisfy current demand for high-efficiency and site-directed mutagenesis, retrofitting of artificial nucleases has developed into a new avenue within this field. Based on mechanisms to recognize target genes, newly-developed GETs can generally be subdivided into three cleavage systems, pr...

  14. Improving visual data mining using analyzing editing effect of visual data

    Science.gov (United States)

    Bae, Tae Meon; Kang, Seok Jun; Ro, Yong Man

    2005-01-01

    With the increase of multimedia contents in the internet, people need to handle a large amount of multimedia contents in the web as well as e-mail. Visual data mining is needed to find appropriate visual data among large multimedia contents. But editing process, which is common on the web affects the feature of visual data, and causes false retrieval in current visual mining system. In this paper, we propose an improving visual mining method by detecting and reducing image editing effects.

  15. Programmable Genome Editing Tools and their Regulation for Efficient Genome Engineering

    OpenAIRE

    Guha, Tuhin Kumar; Wai, Alvan; Hausner, Georg

    2017-01-01

    Targeted genome editing has become a powerful genetic tool for studying gene function or for modifying genomes by correcting defective genes or introducing genes. A variety of reagents have been developed in recent years that can generate targeted double-stranded DNA cuts which can be repaired by the error-prone, non-homologous end joining repair system or via the homologous recombination-based double-strand break repair pathway provided a suitable template is available. These genome editing ...

  16. Gene Loss and Error-Prone RNA Editing in the Mitochondrion of Perkinsela, an Endosymbiotic Kinetoplastid.

    Science.gov (United States)

    David, Vojtěch; Flegontov, Pavel; Gerasimov, Evgeny; Tanifuji, Goro; Hashimi, Hassan; Logacheva, Maria D; Maruyama, Shinichiro; Onodera, Naoko T; Gray, Michael W; Archibald, John M; Lukeš, Julius

    2015-12-01

    Perkinsela is an enigmatic early-branching kinetoplastid protist that lives as an obligate endosymbiont inside Paramoeba (Amoebozoa). We have sequenced the highly reduced mitochondrial genome of Perkinsela, which possesses only six protein-coding genes (cox1, cox2, cox3, cob, atp6, and rps12), despite the fact that the organelle itself contains more DNA than is present in either the host or endosymbiont nuclear genomes. An in silico analysis of two Perkinsela strains showed that mitochondrial RNA editing and processing machineries typical of kinetoplastid flagellates are generally conserved, and all mitochondrial transcripts undergo U-insertion/deletion editing. Canonical kinetoplastid mitochondrial ribosomes are also present. We have developed software tools for accurate and exhaustive mapping of transcriptome sequencing (RNA-seq) reads with extensive U-insertions/deletions, which allows detailed investigation of RNA editing via deep sequencing. With these methods, we show that up to 50% of reads for a given edited region contain errors of the editing system or, less likely, correspond to alternatively edited transcripts. Uridine insertion/deletion-type RNA editing, which occurs in the mitochondrion of kinetoplastid protists, has been well-studied in the model parasite genera Trypanosoma, Leishmania, and Crithidia. Perkinsela provides a unique opportunity to broaden our knowledge of RNA editing machinery from an evolutionary perspective, as it represents the earliest kinetoplastid branch and is an obligatory endosymbiont with extensive reductive trends. Interestingly, up to 50% of mitochondrial transcripts in Perkinsela contain errors. Our study was complemented by use of newly developed software designed for accurate mapping of extensively edited RNA-seq reads obtained by deep sequencing. Copyright © 2015 David et al.

  17. Prospective frequency correction for macromolecule-suppressed GABA editing at 3T.

    Science.gov (United States)

    Edden, Richard A E; Oeltzschner, Georg; Harris, Ashley D; Puts, Nicolaas A J; Chan, Kimberly L; Boer, Vincent O; Schär, Michael; Barker, Peter B

    2016-12-01

    To investigate the effects of B0 field offsets and drift on macromolecule (MM)-suppressed GABA-editing experiments, and to implement and test a prospective correction scheme. "Symmetric" editing schemes are proposed to suppress unwanted coedited MM signals in GABA editing. Full density-matrix simulations of both conventional (nonsymmetric) and symmetric MM-suppressed editing schemes were performed for the GABA spin system to evaluate their offset-dependence. Phantom and in vivo (15 subjects at 3T) GABA-edited experiments with symmetrical suppression of MM signals were performed to quantify the effects of field offsets on the total GABA+MM signal (designated GABA+). A prospective frequency correction method based on interleaved water referencing (IWR) acquisitions was implemented and its experimental performance evaluated during positive and negative drift. Simulations show that the signal from MM-suppressed symmetrical editing schemes is an order of magnitude more susceptible to field offsets than the signal from nonsymmetric editing schemes. The MM-suppressed GABA signal changes by 8.6% per Hz for small field offsets. IWR significantly reduces variance in the field offset and measured GABA levels (both P editing schemes substantially increase the dependence of measurements on B0 field offsets, which can arise due to patient movement and/or scanner instability. It is recommended that symmetrical editing should be used in combination with effective B0 stabilization, such as that provided by IWR. J. Magn. Reson. Imaging 2016;44:1474-1482. © 2016 International Society for Magnetic Resonance in Medicine.

  18. CRISPR-Cas9 Toolkit for Actinomycete Genome Editing

    DEFF Research Database (Denmark)

    Tong, Yaojun; Robertsen, Helene Lunde; Blin, Kai

    2018-01-01

    Bacteria of the order Actinomycetales are one of the most important sources of bioactive natural products, which are the source of many drugs. However, many of them still lack efficient genome editing methods, some strains even cannot be manipulated at all. This restricts systematic metabolic......, a system for in-frame gene/gene cluster knockout, a system for gene loss-of-function study, a system for generating a random size deletion library, and a system for gene knockdown. For the latter, a uracil-specific excision reagent (USER) cloning technology was adapted to simplify the CRISPR vector...

  19. RNA editing in cancer: Mechanistic, prognostic, and therapeutic implications.

    Science.gov (United States)

    Han, Leng; Liang, Han

    2016-03-01

    We have recently provided a comprehensive analysis of A-to-I RNA editing events in various cancer types, revealing many clinically relevant RNA editing sites and demonstrating that RNA editing can selectively affect cancer drug sensitivity. Our results unveil mechanistic, prognostic, and therapeutic implications for RNA editing in cancer.

  20. Genome-editing technologies and patent landscape overview.

    Science.gov (United States)

    Benahmed-Miniuk, Fairouz; Kresz, Mat; Kanaujiya, Jitendra K; Southgate, Christopher D

    2017-05-01

    Unlike with zinc finger nuclease and transcriptional activator-like effector nuclease DNA modification technologies that rely on lead proteins, developed through expensive and time-consuming processes, the clustered regularly interspaced short palindromic repeat (CRISPR)/Cas system has rapidly emerged as the most promising gene-editing technology to date for the modification of any selected DNA sequence. CRISPR is receiving tremendous fanfare due, in part, to its potential to provide a means to fundamentally alter medical genetics and especially cancer medicine. In this review, we compare key technologies of genome-editing zinc finger nucleases, transcriptional activator-like effector nucleases and CRISPR, with a focus on the race to acquire lucrative intellectual property rights, the current CRISPR patent dispute and potential repercussions on innovation and the adoption of this promising technology by the medical community.

  1. Catalogue of Cometary Orbits 1997. 12th edition.

    Science.gov (United States)

    Marsden, B. G.; Williams, G. V.

    Beginning with the tenth edition, the catalogues have utilized the new cometary designation system that took effect at the beginning of 1995. This system was adopted by the IAU in August 1994 in a resolution reproduced on Minor Planet Circ., Nos. 23803 - 23804. This edition contains 1582 orbits for 1548 cometary apparitions and is intended to be complete for comets observed up to September 1997. The presentation of the general tabulation of the orbits has been changed from that in earlier editions in two significant ways. Firstly, the basic orbital data are given on the left-hand pages, while the facing pages contain subsidiary information, notably the references to the original sources of the data. Secondly, the basic data are themselves separated into two parts, with the orbits for single-apparition and multiple-apparition comets listed separately. Contents: 1. Introduction. 2. General catalogue (long-period and unnumbered periodic comets, numbered periodic comets). 3. Identifications. 4. 1997 elements for numbered periodic comets. 5. 1998 - 1999 elements for numbered periodic comets. 6. Statistical tables (numbered periodic comets, unnumbered periodic comets, comets that may be of short period, parabolic and nearly-parabolic orbits in order of i). 7. Correspondence of new-style and old-style designations (by Roman numeral, by letter designation). 8. X/comets.

  2. Advancing Crop Transformation in the Era of Genome Editing.

    Science.gov (United States)

    Altpeter, Fredy; Springer, Nathan M; Bartley, Laura E; Blechl, Ann E; Brutnell, Thomas P; Citovsky, Vitaly; Conrad, Liza J; Gelvin, Stanton B; Jackson, David P; Kausch, Albert P; Lemaux, Peggy G; Medford, June I; Orozco-Cárdenas, Martha L; Tricoli, David M; Van Eck, Joyce; Voytas, Daniel F; Walbot, Virginia; Wang, Kan; Zhang, Zhanyuan J; Stewart, C Neal

    2016-07-01

    Plant transformation has enabled fundamental insights into plant biology and revolutionized commercial agriculture. Unfortunately, for most crops, transformation and regeneration remain arduous even after more than 30 years of technological advances. Genome editing provides novel opportunities to enhance crop productivity but relies on genetic transformation and plant regeneration, which are bottlenecks in the process. Here, we review the state of plant transformation and point to innovations needed to enable genome editing in crops. Plant tissue culture methods need optimization and simplification for efficiency and minimization of time in culture. Currently, specialized facilities exist for crop transformation. Single-cell and robotic techniques should be developed for high-throughput genomic screens. Plant genes involved in developmental reprogramming, wound response, and/or homologous recombination should be used to boost the recovery of transformed plants. Engineering universal Agrobacterium tumefaciens strains and recruiting other microbes, such as Ensifer or Rhizobium, could facilitate delivery of DNA and proteins into plant cells. Synthetic biology should be employed for de novo design of transformation systems. Genome editing is a potential game-changer in crop genetics when plant transformation systems are optimized. © 2016 American Society of Plant Biologists. All rights reserved.

  3. Newer Gene Editing Technologies toward HIV Gene Therapy

    Directory of Open Access Journals (Sweden)

    Premlata Shankar

    2013-11-01

    Full Text Available Despite the great success of highly active antiretroviral therapy (HAART in ameliorating the course of HIV infection, alternative therapeutic approaches are being pursued because of practical problems associated with life-long therapy. The eradication of HIV in the so-called “Berlin patient” who received a bone marrow transplant from a CCR5-negative donor has rekindled interest in genome engineering strategies to achieve the same effect. Precise gene editing within the cells is now a realistic possibility with recent advances in understanding the DNA repair mechanisms, DNA interaction with transcription factors and bacterial defense mechanisms. Within the past few years, four novel technologies have emerged that can be engineered for recognition of specific DNA target sequences to enable site-specific gene editing: Homing Endonuclease, ZFN, TALEN, and CRISPR/Cas9 system. The most recent CRISPR/Cas9 system uses a short stretch of complementary RNA bound to Cas9 nuclease to recognize and cleave target DNA, as opposed to the previous technologies that use DNA binding motifs of either zinc finger proteins or transcription activator-like effector molecules fused to an endonuclease to mediate sequence-specific DNA cleavage. Unlike RNA interference, which requires the continued presence of effector moieties to maintain gene silencing, the newer technologies allow permanent disruption of the targeted gene after a single treatment. Here, we review the applications, limitations and future prospects of novel gene-editing strategies for use as HIV therapy.

  4. LabVIEW 8 student edition

    CERN Document Server

    Bishop, Robert H

    2007-01-01

    For courses in Measurement and Instrumentation, Electrical Engineering lab, and Physics and Chemistry lab. This revised printing has been updated to include new LabVIEW 8.2 Student Edition. National Instruments' LabVIEW is the defacto industry standard for test, measurement, and automation software solutions. With the Student Edition of LabVIEW, students can design graphical programming solutions to their classroom problems and laboratory experiments with software that delivers the graphical programming capabilites of the LabVIEW professional version. . The Student Edition is also compatible with all National Instruments data acquisition and instrument control hardware. Note: The LabVIEW Student Edition is available to students, faculty, and staff for personal educational use only. It is not intended for research, institutional, or commercial use. For more information about these licensing options, please visit the National Instruments website at (http:www.ni.com/academic/)

  5. Editing soft shadows in a digital photograph.

    Science.gov (United States)

    Mohan, Ankit; Tumblin, Jack; Choudhury, Prasun

    2007-01-01

    This technique for modeling, editing, and rendering shadow edges in a photograph or a synthetic image lets users separate the shadow from the rest of the image and make arbitrary adjustments to its position, sharpness, and intensity.

  6. Gene Editing: Regulatory and Translation to Clinic.

    Science.gov (United States)

    Ando, Dale; Meyer, Kathleen

    2017-10-01

    The clinical application and regulatory strategy of genome editing for ex vivo cell therapy is derived from the intersection of two fields of study: viral vector gene therapy trials; and clinical trials with ex vivo purification and engraftment of CD34+ hematopoietic stem cells, T cells, and tumor cell vaccines. This article covers the regulatory and translational preclinical activities needed for a genome editing clinical trial modifying hematopoietic stem cells and the genesis of this current strategy based on previous clinical trials using genome-edited T cells. The SB-728 zinc finger nuclease platform is discussed because this is the most clinically advanced genome editing technology. Copyright © 2017 Elsevier Inc. All rights reserved.

  7. The NMC Horizon Report: 2014 Library Edition

    NARCIS (Netherlands)

    Johnson, L; Adams Becker, S.; Estrada, V.; Freeman, A.; van den Brekel, Guus

    2014-01-01

    The NMC Horizon Report: 2014 Library Edition, examines key trends, significant challenges, and emerging technologies for their potential impact on academic and research libraries worldwide. While there are many local factors affecting libraries, there are also issues that transcend regional

  8. Specification Editing and Discovery Assistant Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The project will prototype a specification editing and discovery tool (SPEEDY) for C/C++ that will assist software developers with modular formal verification tasks...

  9. The CRISPR/Cas Genome-Editing Tool: Application in Improvement of Crops.

    Science.gov (United States)

    Khatodia, Surender; Bhatotia, Kirti; Passricha, Nishat; Khurana, S M P; Tuteja, Narendra

    2016-01-01

    The Clustered Regularly Interspaced Short Palindromic Repeats associated Cas9/sgRNA system is a novel targeted genome-editing technique derived from bacterial immune system. It is an inexpensive, easy, most user friendly and rapidly adopted genome editing tool transforming to revolutionary paradigm. This technique enables precise genomic modifications in many different organisms and tissues. Cas9 protein is an RNA guided endonuclease utilized for creating targeted double-stranded breaks with only a short RNA sequence to confer recognition of the target in animals and plants. Development of genetically edited (GE) crops similar to those developed by conventional or mutation breeding using this potential technique makes it a promising and extremely versatile tool for providing sustainable productive agriculture for better feeding of rapidly growing population in a changing climate. The emerging areas of research for the genome editing in plants include interrogating gene function, rewiring the regulatory signaling networks and sgRNA library for high-throughput loss-of-function screening. In this review, we have described the broad applicability of the Cas9 nuclease mediated targeted plant genome editing for development of designer crops. The regulatory uncertainty and social acceptance of plant breeding by Cas9 genome editing have also been described. With this powerful and innovative technique the designer GE non-GM plants could further advance climate resilient and sustainable agriculture in the future and maximizing yield by combating abiotic and biotic stresses.

  10. Gene Editing and Genetic Lung Disease. Basic Research Meets Therapeutic Application.

    Science.gov (United States)

    Alapati, Deepthi; Morrisey, Edward E

    2017-03-01

    Although our understanding of the genetics and pathology of congenital lung diseases such as surfactant protein deficiency, cystic fibrosis, and alpha-1 antitrypsin deficiency is extensive, treatment options are lacking. Because the lung is a barrier organ in direct communication with the external environment, targeted delivery of gene corrective technologies to the respiratory system via intratracheal or intranasal routes is an attractive option for therapy. CRISPR/Cas9 gene-editing technology is a promising approach to repairing or inactivating disease-causing mutations. Recent reports have provided proof of concept by using CRISPR/Cas9 to successfully repair or inactivate mutations in animal models of monogenic human diseases. Potential pulmonary applications of CRISPR/Cas9 gene editing include gene correction of monogenic diseases in pre- or postnatal lungs and ex vivo gene editing of patient-specific airway stem cells followed by autologous cell transplant. Strategies to enhance gene-editing efficiency and eliminate off-target effects by targeting pulmonary stem/progenitor cells and the assessment of short-term and long-term effects of gene editing are important considerations as the field advances. If methods continue to advance rapidly, CRISPR/Cas9-mediated gene editing may provide a novel opportunity to correct monogenic diseases of the respiratory system.

  11. The Impact of Chromatin Dynamics on Cas9-Mediated Genome Editing in Human Cells.

    Science.gov (United States)

    Daer, René M; Cutts, Josh P; Brafman, David A; Haynes, Karmella A

    2017-03-17

    In order to efficiently edit eukaryotic genomes, it is critical to test the impact of chromatin dynamics on CRISPR/Cas9 function and develop strategies to adapt the system to eukaryotic contexts. So far, research has extensively characterized the relationship between the CRISPR endonuclease Cas9 and the composition of the RNA-DNA duplex that mediates the system's precision. Evidence suggests that chromatin modifications and DNA packaging can block eukaryotic genome editing by custom-built DNA endonucleases like Cas9; however, the underlying mechanism of Cas9 inhibition is unclear. Here, we demonstrate that closed, gene-silencing-associated chromatin is a mechanism for the interference of Cas9-mediated DNA editing. Our assays use a transgenic cell line with a drug-inducible switch to control chromatin states (open and closed) at a single genomic locus. We show that closed chromatin inhibits binding and editing at specific target sites and that artificial reversal of the silenced state restores editing efficiency. These results provide new insights to improve Cas9-mediated editing in human and other mammalian cells.

  12. The CRISPR/Cas Genome-Editing Tool: Application in Improvement of Crops

    Science.gov (United States)

    Khatodia, Surender; Bhatotia, Kirti; Passricha, Nishat; Khurana, S. M. P.; Tuteja, Narendra

    2016-01-01

    The Clustered Regularly Interspaced Short Palindromic Repeats associated Cas9/sgRNA system is a novel targeted genome-editing technique derived from bacterial immune system. It is an inexpensive, easy, most user friendly and rapidly adopted genome editing tool transforming to revolutionary paradigm. This technique enables precise genomic modifications in many different organisms and tissues. Cas9 protein is an RNA guided endonuclease utilized for creating targeted double-stranded breaks with only a short RNA sequence to confer recognition of the target in animals and plants. Development of genetically edited (GE) crops similar to those developed by conventional or mutation breeding using this potential technique makes it a promising and extremely versatile tool for providing sustainable productive agriculture for better feeding of rapidly growing population in a changing climate. The emerging areas of research for the genome editing in plants include interrogating gene function, rewiring the regulatory signaling networks and sgRNA library for high-throughput loss-of-function screening. In this review, we have described the broad applicability of the Cas9 nuclease mediated targeted plant genome editing for development of designer crops. The regulatory uncertainty and social acceptance of plant breeding by Cas9 genome editing have also been described. With this powerful and innovative technique the designer GE non-GM plants could further advance climate resilient and sustainable agriculture in the future and maximizing yield by combating abiotic and biotic stresses. PMID:27148329

  13. The emerging role of viral vectors as vehicles for DMD gene editing.

    Science.gov (United States)

    Maggio, Ignazio; Chen, Xiaoyu; Gonçalves, Manuel A F V

    2016-05-23

    Duchenne muscular dystrophy (DMD) is a genetic disorder caused by mutations in the dystrophin-encoding DMD gene. The DMD gene, spanning over 2.4 megabases along the short arm of the X chromosome (Xp21.2), is the largest genetic locus known in the human genome. The size of DMD, combined with the complexity of the DMD phenotype and the extent of the affected tissues, begs for the development of novel, ideally complementary, therapeutic approaches. Genome editing based on the delivery of sequence-specific programmable nucleases into dystrophin-defective cells has recently enriched the portfolio of potential therapies under investigation. Experiments involving different programmable nuclease platforms and target cell types have established that the application of genome-editing principles to the targeted manipulation of defective DMD loci can result in the rescue of dystrophin protein synthesis in gene-edited cells. Looking towards translation into the clinic, these proof-of-principle experiments have been swiftly followed by the conversion of well-established viral vector systems into delivery agents for DMD editing. These gene-editing tools consist of zinc-finger nucleases (ZFNs), engineered homing endoculeases (HEs), transcription activator-like effector nucleases (TALENs), and RNA-guided nucleases (RGNs) based on clustered, regularly interspaced, short palindromic repeats (CRISPR)-Cas9 systems. Here, we succinctly review these fast-paced developments and technologies, highlighting their relative merits and potential bottlenecks, when used as part of in vivo and ex vivo gene-editing strategies.

  14. Involvement of serotonin 2C receptor RNA editing in accumbal neuropeptide Y expression and behavioural despair.

    Science.gov (United States)

    Aoki, Miku; Watanabe, Yoshihisa; Yoshimoto, Kanji; Tsujimura, Atsushi; Yamamoto, Toshiro; Kanamura, Narisato; Tanaka, Masaki

    2016-05-01

    Serotonin 2C receptors (5-HT2 C Rs) are widely expressed in the central nervous system, and are associated with various neurological disorders. 5-HT2 C R mRNA undergoes adenosine-to-inosine RNA editing at five sites within its coding sequence, resulting in expression of 24 different isoforms. Several edited isoforms show reduced activity, suggesting that RNA editing modulates serotonergic systems in the brain with causative relevance to neuropsychiatric disorders. Transgenic mice solely expressing the non-edited 5-HT2 C R INI-isoform (INI) or the fully edited VGV-isoform exhibit various phenotypes including metabolic abnormalities, aggressive behaviour, anxiety-like behaviour, and depression-like behaviour. Here, we examined the behavioural phenotype and molecular changes of INI mice on a C57BL/6J background. INI mice showed an enhanced behavioural despair in the forced swimming test, elevated sensitivity to the tricyclic antidepressant desipramine, and significantly decreased serotonin in the nucleus accumbens (NAc), amygdala, and striatum. They also showed reduced expression of neuropeptide Y (NPY) mRNA in the NAc. In addition, by stereotactic injection of adeno-associated virus encoding NPY into the NAc, we demonstrated that accumbal NPY overexpression relieved behavioural despair. Our results suggest that accumbal NPY expression may be regulated by 5-HT2 C R RNA editing, and its impairment may be linked to mood disorders. © 2016 Federation of European Neuroscience Societies and John Wiley & Sons Ltd.

  15. RNA editing generates cellular subsets with diverse sequence within populations.

    Science.gov (United States)

    Harjanto, Dewi; Papamarkou, Theodore; Oates, Chris J; Rayon-Estrada, Violeta; Papavasiliou, F Nina; Papavasiliou, Anastasia

    2016-07-15

    RNA editing is a mutational mechanism that specifically alters the nucleotide content in transcribed RNA. However, editing rates vary widely, and could result from equivalent editing amongst individual cells, or represent an average of variable editing within a population. Here we present a hierarchical Bayesian model that quantifies the variance of editing rates at specific sites using RNA-seq data from both single cells, and a cognate bulk sample to distinguish between these two possibilities. The model predicts high variance for specific edited sites in murine macrophages and dendritic cells, findings that we validated experimentally by using targeted amplification of specific editable transcripts from single cells. The model also predicts changes in variance in editing rates for specific sites in dendritic cells during the course of LPS stimulation. Our data demonstrate substantial variance in editing signatures amongst single cells, supporting the notion that RNA editing generates diversity within cellular populations.

  16. Transcriptome-wide identification of A > I RNA editing sites by inosine specific cleavage.

    Science.gov (United States)

    Cattenoz, Pierre B; Taft, Ryan J; Westhof, Eric; Mattick, John S

    2013-02-01

    Adenosine to inosine (A > I) RNA editing, which is catalyzed by the ADAR family of proteins, is one of the fundamental mechanisms by which transcriptomic diversity is generated. Indeed, a number of genome-wide analyses have shown that A > I editing is not limited to a few mRNAs, as originally thought, but occurs widely across the transcriptome, especially in the brain. Importantly, there is increasing evidence that A > I editing is essential for animal development and nervous system function. To more efficiently characterize the complete catalog of ADAR events in the mammalian transcriptome we developed a high-throughput protocol to identify A > I editing sites, which exploits the capacity of glyoxal to protect guanosine, but not inosine, from RNAse T1 treatment, thus facilitating extraction of RNA fragments with inosine bases at their termini for high-throughput sequencing. Using this method we identified 665 editing sites in mouse brain RNA, including most known sites and suite of novel sites that include nonsynonymous changes to protein-coding genes, hyperediting of genes known to regulate p53, and alterations to non-protein-coding RNAs. This method is applicable to any biological system for the de novo discovery of A > I editing sites, and avoids the complicated informatic and practical issues associated with editing site identification using traditional RNA sequencing data. This approach has the potential to substantially increase our understanding of the extent and function of RNA editing, and thereby to shed light on the role of transcriptional plasticity in evolution, development, and cognition.

  17. Looking forward to genetically edited fruit crops.

    Science.gov (United States)

    Nagamangala Kanchiswamy, Chidananda; Sargent, Daniel James; Velasco, Riccardo; Maffei, Massimo E; Malnoy, Mickael

    2015-02-01

    The availability of genome sequences for many fruit crops has redefined the boundaries of genetic engineering and genetically modified (GM) crop plants. However commercialization of GM crops is hindered by numerous regulatory and social hurdles. Here, we focus on recently developed genome-editing tools for fruit crop improvement and their importance from the consumer perspective. Challenges and opportunities for the deployment of new genome-editing tools for fruit plants are also discussed. Copyright © 2014 Elsevier Ltd. All rights reserved.

  18. Non-GMO genetically edited crop plants.

    Science.gov (United States)

    Kanchiswamy, Chidananda Nagamangala; Malnoy, Mickael; Velasco, Riccardo; Kim, Jin-Soo; Viola, Roberto

    2015-09-01

    Direct delivery of purified Cas9 protein with guide RNA into plant cells, as opposed to plasmid-mediated delivery, displays high efficiency and reduced off-target effects. Following regeneration from edited cells, the ensuing plant is also likely to bypass genetically modified organism (GMO) legislation as the genome editing complex is degraded in the recipient cells. Copyright © 2015 Elsevier Ltd. All rights reserved.

  19. Therapeutic gene editing: delivery and regulatory perspectives.

    Science.gov (United States)

    Shim, Gayong; Kim, Dongyoon; Park, Gyu Thae; Jin, Hyerim; Suh, Soo-Kyung; Oh, Yu-Kyoung

    2017-06-01

    Gene-editing technology is an emerging therapeutic modality for manipulating the eukaryotic genome by using target-sequence-specific engineered nucleases. Because of the exceptional advantages that gene-editing technology offers in facilitating the accurate correction of sequences in a genome, gene editing-based therapy is being aggressively developed as a next-generation therapeutic approach to treat a wide range of diseases. However, strategies for precise engineering and delivery of gene-editing nucleases, including zinc finger nucleases, transcription activator-like effector nuclease, and CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats-associated nuclease Cas9), present major obstacles to the development of gene-editing therapies, as with other gene-targeting therapeutics. Currently, viral and non-viral vectors are being studied for the delivery of these nucleases into cells in the form of DNA, mRNA, or proteins. Clinical trials are already ongoing, and in vivo studies are actively investigating the applicability of CRISPR/Cas9 techniques. However, the concept of correcting the genome poses major concerns from a regulatory perspective, especially in terms of safety. This review addresses current research trends and delivery strategies for gene editing-based therapeutics in non-clinical and clinical settings and considers the associated regulatory issues.

  20. On the evaluation of segmentation editing tools

    Science.gov (United States)

    Heckel, Frank; Moltz, Jan H.; Meine, Hans; Geisler, Benjamin; Kießling, Andreas; D’Anastasi, Melvin; dos Santos, Daniel Pinto; Theruvath, Ashok Joseph; Hahn, Horst K.

    2014-01-01

    Abstract. Efficient segmentation editing tools are important components in the segmentation process, as no automatic methods exist that always generate sufficient results. Evaluating segmentation editing algorithms is challenging, because their quality depends on the user’s subjective impression. So far, no established methods for an objective, comprehensive evaluation of such tools exist and, particularly, intermediate segmentation results are not taken into account. We discuss the evaluation of editing algorithms in the context of tumor segmentation in computed tomography. We propose a rating scheme to qualitatively measure the accuracy and efficiency of editing tools in user studies. In order to objectively summarize the overall quality, we propose two scores based on the subjective rating and the quantified segmentation quality over time. Finally, a simulation-based evaluation approach is discussed, which allows a more reproducible evaluation without the need for human input. This automated evaluation complements user studies, allowing a more convincing evaluation, particularly during development, where frequent user studies are not possible. The proposed methods have been used to evaluate two dedicated editing algorithms on 131 representative tumor segmentations. We show how the comparison of editing algorithms benefits from the proposed methods. Our results also show the correlation of the suggested quality score with the qualitative ratings. PMID:26158063

  1. The commercialization of genome-editing technologies.

    Science.gov (United States)

    Brinegar, Katelyn; K Yetisen, Ali; Choi, Sun; Vallillo, Emily; Ruiz-Esparza, Guillermo U; Prabhakar, Anand M; Khademhosseini, Ali; Yun, Seok-Hyun

    2017-11-01

    The emergence of new gene-editing technologies is profoundly transforming human therapeutics, agriculture, and industrial biotechnology. Advances in clustered regularly interspaced short palindromic repeats (CRISPR) have created a fertile environment for mass-scale manufacturing of cost-effective products ranging from basic research to translational medicine. In our analyses, we evaluated the patent landscape of gene-editing technologies and found that in comparison to earlier gene-editing techniques, CRISPR has gained significant traction and this has established dominance. Although most of the gene-editing technologies originated from the industry, CRISPR has been pioneered by academic research institutions. The spinout of CRISPR biotechnology companies from academic institutions demonstrates a shift in entrepreneurship strategies that were previously led by the industry. These academic institutions, and their subsequent companies, are competing to generate comprehensive intellectual property portfolios to rapidly commercialize CRISPR products. Our analysis shows that the emergence of CRISPR has resulted in a fivefold increase in genome-editing bioenterprise investment over the last year. This entrepreneurial movement has spurred a global biotechnology revolution in the realization of novel gene-editing technologies. This global shift in bioenterprise will continue to grow as the demand for personalized medicine, genetically modified crops and environmentally sustainable biofuels increases. However, the monopolization of intellectual property, negative public perception of genetic engineering and ambiguous regulatory policies may limit the growth of these market segments.

  2. High-throughput sequencing of partially edited trypanosome mRNAs reveals barriers to editing progression and evidence for alternative editing

    Science.gov (United States)

    Simpson, Rachel M.; Bruno, Andrew E.; Bard, Jonathan E.; Buck, Michael J.

    2016-01-01

    Uridine insertion/deletion RNA editing in kinetoplastids entails the addition and deletion of uridine residues throughout the length of mitochondrial transcripts to generate translatable mRNAs. This complex process requires the coordinated use of several multiprotein complexes as well as the sequential use of noncoding template RNAs called guide RNAs. The majority of steady-state mitochondrial mRNAs are partially edited and often contain regions of mis-editing, termed junctions, whose role is unclear. Here, we report a novel method for sequencing entire populations of pre-edited partially edited, and fully edited RNAs and analyzing editing characteristics across populations using a new bioinformatics tool, the Trypanosome RNA Editing Alignment Tool (TREAT). Using TREAT, we examined populations of two transcripts, RPS12 and ND7-5′, in wild-type Trypanosoma brucei. We provide evidence that the majority of partially edited sequences contain junctions, that intrinsic pause sites arise during the progression of editing, and that the mechanisms that mediate pausing in the generation of canonical fully edited sequences are distinct from those that mediate the ends of junction regions. Furthermore, we identify alternatively edited sequences that constitute plausible alternative open reading frames and identify substantial variability in the 5′ UTRs of both canonical and alternatively edited sequences. This work is the first to use high-throughput sequencing to examine full-length sequences of whole populations of partially edited transcripts. Our method is highly applicable to current questions in the RNA editing field, including defining mechanisms of action for editing factors and identifying potential alternatively edited sequences. PMID:26908922

  3. High-throughput sequencing of partially edited trypanosome mRNAs reveals barriers to editing progression and evidence for alternative editing.

    Science.gov (United States)

    Simpson, Rachel M; Bruno, Andrew E; Bard, Jonathan E; Buck, Michael J; Read, Laurie K

    2016-05-01

    Uridine insertion/deletion RNA editing in kinetoplastids entails the addition and deletion of uridine residues throughout the length of mitochondrial transcripts to generate translatable mRNAs. This complex process requires the coordinated use of several multiprotein complexes as well as the sequential use of noncoding template RNAs called guide RNAs. The majority of steady-state mitochondrial mRNAs are partially edited and often contain regions of mis-editing, termed junctions, whose role is unclear. Here, we report a novel method for sequencing entire populations of pre-edited partially edited, and fully edited RNAs and analyzing editing characteristics across populations using a new bioinformatics tool, the Trypanosome RNA Editing Alignment Tool (TREAT). Using TREAT, we examined populations of two transcripts, RPS12 and ND7-5', in wild-typeTrypanosoma brucei We provide evidence that the majority of partially edited sequences contain junctions, that intrinsic pause sites arise during the progression of editing, and that the mechanisms that mediate pausing in the generation of canonical fully edited sequences are distinct from those that mediate the ends of junction regions. Furthermore, we identify alternatively edited sequences that constitute plausible alternative open reading frames and identify substantial variability in the 5' UTRs of both canonical and alternatively edited sequences. This work is the first to use high-throughput sequencing to examine full-length sequences of whole populations of partially edited transcripts. Our method is highly applicable to current questions in the RNA editing field, including defining mechanisms of action for editing factors and identifying potential alternatively edited sequences. © 2016 Simpson et al.; Published by Cold Spring Harbor Laboratory Press for the RNA Society.

  4. [Textual research on the edition of WU Kun's books].

    Science.gov (United States)

    Wang, Xu-Guang; Lu, Xiang

    2013-03-01

    WU Kun is a famous physician of the Xin'an School. He wrote a 6-volume Yi fang kao (Textual Research on Recipes) in 1584, a 24-volume Wu zhu su wen (Wu's Annotation of Plain Questions) in 1594, a 6-volume Zhen fang liu ji (Six Collections of Acupuncture and Prescription) in 1618 block-printed and funded by CHENG Biao, and a 2-volume Mai yu (Language of Pulse) with writing date unknown. For Yi fang kao, there were 4 editions, including Ming-dynasty block-printed edition, Japanese and Korean block-printed edition, old hand-copied edition and modern printing edition. For Wu zhu su wen, there were 5 editions, Ming-Qing-dynasty block-printed edition, Japanese block-printed edition, old hand-copied edition, photocopy and modern edition. For Zhen fang liu ji, there were Ming-dynasty block-printed edition, hand-copied edition, photocopy and modern edition. Mai yu always was printed together with Yi fang kao, and its editions were same as those of Yi fang kao, except some modern printing edition with Mai yu excluded.

  5. Steric antisense inhibition of AMPA receptor Q/R editing reveals tight coupling to intronic editing sites and splicing

    OpenAIRE

    Penn, Andrew C; Balik, Ales; Greger, Ingo H.

    2012-01-01

    Adenosine-to-Inosine (A-to-I) RNA editing is a post-transcriptional mechanism, evolved to diversify the transcriptome in metazoa. In addition to wide-spread editing in non-coding regions protein recoding by RNA editing allows for fine tuning of protein function. Functional consequences are only known for some editing sites and the combinatorial effect between multiple sites (functional epistasis) is currently unclear. Similarly, the interplay between RNA editing and splicing, which impacts on...

  6. Book Review: New Perspectives on Technical Editing

    Science.gov (United States)

    Murphy, A. J. (Ed.); Sterken, Christiaan

    2012-08-01

    New Perspectives on Technical Editing by Avon J. Murphy (ed.) ISBN : 978-0895033949 (2010) Baywood Publishing Company Inc, Hardcover, 210 pages, 35.5 GBP This book presents a collection of 10 chapters dealing with diverse aspects of technical editing (ie, editorial planning, and analysis and structural changes made to other people's technological documents): research in technical editing, trends and teaching of technical editing, copyediting, and technical journal editing. The role and function of the modern journal and book editor is also dealt with in detail. Each chapter is written by an expert in the field: senior editors, university professors in technical communication, technical writers and linguists. The ever-evolving role of the editor is clearly elucidated in several historical reviews, and in the descriptions of the expectations for the future. A very striking aspect of this book is its extensive collection of bibliographic resources: every chapter lists dozens of very useful references, and the closing chapter, and annotated bibliography, contain many not so well known references, and are most useful. All in all, the book is a treasure trove listing more than 400 references, in addition to numerous webpage URLs embedded in the texts. The book is designed to help the reader to understand current practices and norms in technical editing, and to help to take action in editing as well as in teaching and educating would-be editors. The audience for this book thus includes editors and teachers, but also writers, researchers and students. A deep reading of this book will result in a better understanding of the difference between full technical editing and its much narrower component so well known as copyediting, and will convince any prospective editor that editing should not be undertaken if the people involved do not master the art of precision and accuracy in technical (as well as in human) communication, do not possess the technical know how and computer

  7. Harnessing the Potential of Human Pluripotent Stem Cells and Gene Editing for the Treatment of Retinal Degeneration.

    Science.gov (United States)

    Ovando-Roche, Patrick; Georgiadis, Anastasios; Smith, Alexander J; Pearson, Rachael A; Ali, Robin R

    2017-01-01

    A major cause of visual disorders is dysfunction and/or loss of the light-sensitive cells of the retina, the photoreceptors. To develop better treatments for patients, we need to understand how inherited retinal disease mutations result in the dysfunction of photoreceptors. New advances in the field of stem cell and gene editing research offer novel ways to model retinal dystrophies in vitro and present opportunities to translate basic biological insights into therapies. This brief review will discuss some of the issues that should be taken into account when carrying out disease modelling and gene editing of retinal cells. We will discuss (i) the use of human induced pluripotent stem cells (iPSCs) for disease modelling and cell therapy; (ii) the importance of using isogenic iPSC lines as controls; (iii) CRISPR/Cas9 gene editing of iPSCs; and (iv) in vivo gene editing using AAV vectors. Ground-breaking advances in differentiation of iPSCs into retinal organoids and methods to derive mature light sensitive photoreceptors from iPSCs. Furthermore, single AAV systems for in vivo gene editing have been developed which makes retinal in vivo gene editing therapy a real prospect. Genome editing is becoming a valuable tool for disease modelling and in vivo gene editing in the retina.

  8. MapEdit: solution to continuous raster map creation

    Science.gov (United States)

    Rančić, Dejan; Djordjevi-Kajan, Slobodanka

    2003-03-01

    The paper describes MapEdit, MS Windows TM software for georeferencing and rectification of scanned paper maps. The software produces continuous raster maps which can be used as background in geographical information systems. Process of continuous raster map creation using MapEdit "mosaicking" function is also described as well as the georeferencing and rectification algorithms which are used in MapEdit. Our approach for georeferencing and rectification using four control points and two linear transformations for each scanned map part, together with nearest neighbor resampling method, represents low cost—high speed solution that produce continuous raster maps with satisfactory quality for many purposes (±1 pixel). Quality assessment of several continuous raster maps at different scales that have been created using our software and methodology, has been undertaken and results are presented in the paper. For the quality control of the produced raster maps we referred to three wide adopted standards: US Standard for Digital Cartographic Data, National Standard for Spatial Data Accuracy and US National Map Accuracy Standard. The results obtained during the quality assessment process are given in the paper and show that our maps meat all three standards.

  9. CRISPR/Cas9: Transcending the Reality of Genome Editing.

    Science.gov (United States)

    Chira, Sergiu; Gulei, Diana; Hajitou, Amin; Zimta, Alina-Andreea; Cordelier, Pierre; Berindan-Neagoe, Ioana

    2017-06-16

    With the expansion of the microbiology field of research, a new genome editing tool arises from the biology of bacteria that holds the promise of achieving precise modifications in the genome with a simplicity and versatility that surpasses previous genome editing methods. This new technique, commonly named CRISPR/Cas9, led to a rapid expansion of the biomedical field; more specifically, cancer characterization and modeling have benefitted greatly from the genome editing capabilities of CRISPR/Cas9. In this paper, we briefly summarize recent improvements in CRISPR/Cas9 design meant to overcome the limitations that have arisen from the nuclease activity of Cas9 and the influence of this technology in cancer research. In addition, we present challenges that might impede the clinical applicability of CRISPR/Cas9 for cancer therapy and highlight future directions for designing CRISPR/Cas9 delivery systems that might prove useful for cancer therapeutics. Copyright © 2017 The Author(s). Published by Elsevier Inc. All rights reserved.

  10. Comparative biomechanics: life's physical world (second edition)

    CERN Document Server

    Vogel, Steven

    2013-01-01

    Why do you switch from walking to running at a specific speed? Why do tall trees rarely blow over in high winds? And why does a spore ejected into air at seventy miles per hour travel only a fraction of an inch? Comparative Biomechanics is the first and only textbook that takes a comprehensive look at the mechanical aspects of life--covering animals and plants, structure and movement, and solids and fluids. An ideal entry point into the ways living creatures interact with their immediate physical world, this revised and updated edition examines how the forms and activities of animals and plants reflect the materials available to nature, considers rules for fluid flow and structural design, and explores how organisms contend with environmental forces. Drawing on physics and mechanical engineering, Steven Vogel looks at how animals swim and fly, modes of terrestrial locomotion, organism responses to winds and water currents, circulatory and suspension-feeding systems, and the relationship between size and mech...

  11. The sun and space weather Second Edition

    CERN Document Server

    Hanslmeier, Arnold

    2007-01-01

    This second edition is a great enhancement of literature which will help the reader get deeper into the specific topics. There are new sections included such as space weather data sources and examples, new satellite missions, and the latest results. At the end a comprehensive index is given which will allow the reader to quickly find his topics of interest. The Sun and Space weather are two rapidly evolving topics. The importance of the Sun for the Earth, life on Earth, climate and weather processes was recognized long ago by the ancients. Now, for the first time there is a continuous surveillance of solar activity at nearly all wavelengths. These data can be used to improve our understanding of the complex Sun-Earth interaction. The first chapters of the book deal with the Sun as a star and its activity phenomena as well as its activity cycle in order to understand the complex physics of the Sun-Earth system. The reader will see that there are many phenomena but still no definite explanations and models exis...

  12. The application of genome editing in studying hearing loss.

    Science.gov (United States)

    Zou, Bing; Mittal, Rahul; Grati, M'hamed; Lu, Zhongmin; Shu, Yilai; Tao, Yong; Feng, Youg; Xie, Dinghua; Kong, Weijia; Yang, Shiming; Chen, Zheng-Yi; Liu, Xuezhong

    2015-09-01

    Targeted genome editing mediated by clustered, regularly interspaced, short palindromic repeat (CRISPR)/CRISPR-associated nuclease 9 (Cas9) technology has emerged as one of the most powerful tools to study gene functions, and with potential to treat genetic disorders. Hearing loss is one of the most common sensory disorders, affecting approximately 1 in 500 newborns with no treatment. Mutations of inner ear genes contribute to the largest portion of genetic deafness. The simplicity and robustness of CRISPR/Cas9-directed genome editing in human cells and model organisms such as zebrafish, mice and primates make it a promising technology in hearing research. With CRISPR/Cas9 technology, functions of inner ear genes can be studied efficiently by the disruption of normal gene alleles through non-homologous-end-joining (NHEJ) mechanism. For genetic hearing loss, CRISPR/Cas9 has potential to repair gene mutations by homology-directed-repair (HDR) or to disrupt dominant mutations by NHEJ, which could restore hearing. Our recent work has shown CRISPR/Cas9-mediated genome editing can be efficiently performed in the mammalian inner ear in vivo. Thus, application of CRISPR/Cas9 in hearing research will open up new avenues for understanding the pathology of genetic hearing loss and provide new routes in the development of treatment to restore hearing. In this review, we describe major methodologies currently used for genome editing. We will highlight applications of these technologies in studies of genetic disorders and discuss issues pertaining to applications of CRISPR/Cas9 in auditory systems implicated in genetic hearing loss. Copyright © 2015 Elsevier B.V. All rights reserved.

  13. A Videotaped Self-Modelling and Self-Monitoring Treatment Program to Decrease Off-Task Behaviour in Children with Autism

    Science.gov (United States)

    Coyle, Catherine; Cole, Peter

    2004-01-01

    The value of a videotaped self-modelling and self-monitoring treatment program was investigated in the present study. The focus was the effect of the treatment program on the off-task classroom behaviour of 3 male children with autism. The participants were aged between 9 and 11 years. Two of the children were described as severely autistic and…

  14. The efficacy of videotape feedback for enhancing the effects of exposure-based treatment for social anxiety disorder: A controlled investigation

    NARCIS (Netherlands)

    Smits, J.A.J.; Powers, M.B.; Buxkamper, R.; Telch, M.J.

    2006-01-01

    Correcting patients' faulty beliefs concerning social evaluative threats is the hallmark of cognitive-behavioral treatment of social anxiety disorder. The current study examined the efficacy of two videotape feedback procedures as adjuncts to exposure-based treatment. Participants suffering from

  15. Examining the content of weight, nutrition and physical activity advices provided by Dutch practice nurses in primary care: analysis of videotaped consultations

    NARCIS (Netherlands)

    Dillen, S.M. van; Noordman, J.; Dulmen, S. van; Hiddink, G.J.

    2014-01-01

    BACKGROUND/OBJECTIVE: To examine the content of Dutch practice nurses' (PNs') advices about weight, nutrition and physical activity to overweight and obese patients. SUBJECTS/METHODS: A 100 videotaped real-life PN consultations (The Netherlands, 2010/2011) with overweight or obese patients were

  16. Examining the content of weight, nutrition and physical activity advices provided by Dutch practice nurses in primary care: analysis of videotaped consultations.

    NARCIS (Netherlands)

    Dillen, S.M.E. van; Noordman, J.; Dulmen, S. van; Hiddink, G.J.

    2014-01-01

    Background/Objective: To examine the content of Dutch practice nurses’ (PNs’) advices about weight, nutrition and physical activity to overweight and obese patients. Subjects/Methods: A 100 videotaped real-life PN consultations (The Netherlands, 2010/2011) with overweight or obese patients were

  17. CRISPR/Cas9-mediated genome editing of Epstein-Barr virus in human cells.

    Science.gov (United States)

    Yuen, Kit-San; Chan, Chi-Ping; Wong, Nok-Hei Mickey; Ho, Chau-Ha; Ho, Ting-Hin; Lei, Ting; Deng, Wen; Tsao, Sai Wah; Chen, Honglin; Kok, Kin-Hang; Jin, Dong-Yan

    2015-03-01

    The CRISPR (clustered regularly interspaced short palindromic repeats)/Cas9 (CRISPR-associated 9) system is a highly efficient and powerful tool for RNA-guided editing of the cellular genome. Whether CRISPR/Cas9 can also cleave the genome of DNA viruses such as Epstein-Barr virus (EBV), which undergo episomal replication in human cells, remains to be established. Here, we reported on CRISPR/Cas9-mediated editing of the EBV genome in human cells. Two guide RNAs (gRNAs) were used to direct a targeted deletion of 558 bp in the promoter region of BART (BamHI A rightward transcript) which encodes viral microRNAs (miRNAs). Targeted editing was achieved in several human epithelial cell lines latently infected with EBV, including nasopharyngeal carcinoma C666-1 cells. CRISPR/Cas9-mediated editing of the EBV genome was efficient. A recombinant virus with the desired deletion was obtained after puromycin selection of cells expressing Cas9 and gRNAs. No off-target cleavage was found by deep sequencing. The loss of BART miRNA expression and activity was verified, supporting the BART promoter as the major promoter of BART RNA. Although CRISPR/Cas9-mediated editing of the multicopy episome of EBV in infected HEK293 cells was mostly incomplete, viruses could be recovered and introduced into other cells at low m.o.i. Recombinant viruses with an edited genome could be further isolated through single-cell sorting. Finally, a DsRed selectable marker was successfully introduced into the EBV genome during the course of CRISPR/Cas9-mediated editing. Taken together, our work provided not only the first genetic evidence that the BART promoter drives the expression of the BART transcript, but also a new and efficient method for targeted editing of EBV genome in human cells. © 2015 The Authors.

  18. CRISPR-Cas9: tool for qualitative and quantitative plant genome editing

    Directory of Open Access Journals (Sweden)

    Ali Noman

    2016-11-01

    Full Text Available Genome editing advancements have made many unachievable ideas practical. Increased adoption of genome editing has been geared by swiftly developing CRISPR-Cas9 technology. This technique is appearing as driving force for innovative utilization in diverse branches of plant biology. CRISPR mediated genome editing is being used for rapid, easy and efficient alteration of indigenous genes among diverse plant species. With approximate completion of conceptual work about CRISPR/Cas9, plant scientists are applying this genome editing tool for crop attributes enhancement. The capability of CRISPR-Cas9 systems for performing targeted and efficient modifications in genome sequence as well as gene expression will certainly spur novel developments not only in model plants but also in crop plants. Additionally, due to non-involvement of foreign DNA, this technique may help alleviating regulatory issues associated with GM Plants. We expect that prevailing challenges in plant science like genomic region manipulation, crop specific vectors etc. will be addressed along with sustained growth of this genome editing tool. In this review, recent progress of CRISPR/Cas9 technology in plants has been summarized and discussed. We review potential of CRISPR/Cas9 for different aspects of plant life. It also covers strengths of this technique in comparison with other genome editing techniques e.g. ZFNs and TALENs and potential challenges in coming decades have been described.

  19. Quantifying Genome-Editing Outcomes at Endogenous Loci with SMRT Sequencing

    Directory of Open Access Journals (Sweden)

    Ayal Hendel

    2014-04-01

    Full Text Available Targeted genome editing with engineered nucleases has transformed the ability to introduce precise sequence modifications at almost any site within the genome. A major obstacle to probing the efficiency and consequences of genome editing is that no existing method enables the frequency of different editing events to be simultaneously measured across a cell population at any endogenous genomic locus. We have developed a method for quantifying individual genome-editing outcomes at any site of interest with single-molecule real-time (SMRT DNA sequencing. We show that this approach can be applied at various loci using multiple engineered nuclease platforms, including transcription-activator-like effector nucleases (TALENs, RNA-guided endonucleases (CRISPR/Cas9, and zinc finger nucleases (ZFNs, and in different cell lines to identify conditions and strategies in which the desired engineering outcome has occurred. This approach offers a technique for studying double-strand break repair, facilitates the evaluation of gene-editing technologies, and permits sensitive quantification of editing outcomes in almost every experimental system used.

  20. RNA Editing of the GP Gene of Ebola Virus is an Important Pathogenicity Factor.

    Science.gov (United States)

    Volchkova, Valentina A; Dolnik, Olga; Martinez, Mikel J; Reynard, Olivier; Volchkov, Viktor E

    2015-10-01

    Synthesis of the surface glycoprotein GP of Ebola virus (EBOV) is dependent on transcriptional RNA editing, whereas direct expression of the GP gene results in synthesis of nonstructural secreted glycoprotein sGP. In this study, we investigate the role of RNA editing in the pathogenicity of EBOV using a guinea pig model and recombinant guinea pig-adapted EBOV containing mutations at the editing site, allowing expression of surface GP without the need for RNA editing, and also preventing synthesis of sGP. We demonstrate that the elimination of the editing site leads to EBOV attenuation in vivo, explained by lower virus spread caused by the higher virus cytotoxicity and, most likely, by an increased ability of the host defense systems to recognize and eliminate virus-infected cells. We also demonstrate that expression of sGP does not affect pathogenicity of EBOV in guinea pigs. In conclusion, data obtained indicate that downregulation of the level of surface GP expression through a mechanism of GP gene RNA editing plays an important role in the high pathogenicity of EBOV. © The Author 2015. Published by Oxford University Press on behalf of the Infectious Diseases Society of America. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.

  1. Application of the gene editing tool, CRISPR-Cas9, for treating neurodegenerative diseases.

    Science.gov (United States)

    Kolli, Nivya; Lu, Ming; Maiti, Panchanan; Rossignol, Julien; Dunbar, Gary L

    2018-01-01

    Increased accumulation of transcribed protein from the damaged DNA and reduced DNA repair capability contributes to numerous neurological diseases for which effective treatments are lacking. Gene editing techniques provide new hope for replacing defective genes and DNA associated with neurological diseases. With advancements in using such editing tools as zinc finger nucleases (ZFNs), meganucleases, and transcription activator-like effector nucleases (TALENs), etc., scientists are able to design DNA-binding proteins, which can make precise double-strand breaks (DSBs) at the target DNA. Recent developments with the CRISPR-Cas9 gene-editing technology has proven to be more precise and efficient when compared to most other gene-editing techniques. Two methods, non-homologous end joining (NHEJ) and homology-direct repair (HDR), are used in CRISPR-Cas9 system to efficiently excise the defective genes and incorporate exogenous DNA at the target site. In this review article, we provide an overview of the CRISPR-Cas9 methodology, including its molecular mechanism, with a focus on how in this gene-editing tool can be used to counteract certain genetic defects associated with neurological diseases. Detailed understanding of this new tool could help researchers design specific gene editing strategies to repair genetic disorders in selective neurological diseases. Copyright © 2017 Elsevier Ltd. All rights reserved.

  2. 17th Edition of TOP500 List of World's Fastest SupercomputersReseased

    Energy Technology Data Exchange (ETDEWEB)

    Strohmaier, Erich; Meuer, Hans W.; Dongarra, Jack J.; Simon,Horst D.

    2001-06-21

    17th Edition of TOP500 List of World's Fastest Supercomputers Released MANNHEIM, GERMANY; KNOXVILLE, TENN.; BERKELEY, CALIF. In what has become a much-anticipated event in the world of high-performance computing, the 17th edition of the TOP500 list of the world's fastest supercomputers was released today (June 21). The latest edition of the twice-yearly ranking finds IBM as the leader in the field, with 40 percent in terms of installed systems and 43 percent in terms of total performance of all the installed systems. In second place in terms of installed systems is Sun Microsystems with 16 percent, while Cray Inc. retained second place in terms of performance (13 percent). SGI Inc. was third both with respect to systems with 63 (12.6 percent) and performance (10.2 percent).

  3. Quantum Field Theory, Revised Edition

    Science.gov (United States)

    Mandl, F.; Shaw, G.

    1994-01-01

    Quantum Field Theory Revised Edition F. Mandl and G. Shaw, Department of Theoretical Physics, The Schuster Laboratory, The University, Manchester, UK When this book first appeared in 1984, only a handful of W± and Z° bosons had been observed and the experimental investigation of high energy electro-weak interactions was in its infancy. Nowadays, W± bosons and especially Z° bosons can be produced by the thousand and the study of their properties is a precise science. We have revised the text of the later chapters to incorporate these developments and discuss their implications. We have also taken this opportunity to update the references throughout and to make some improvements in the treatment of dimen-sional regularization. Finally, we have corrected some minor errors and are grateful to various people for pointing these out. This book is designed as a short and simple introduction to quantum field theory for students beginning research in theoretical and experimental physics. The three main objectives are to explain the basic physics and formalism of quantum field theory, to make the reader fully proficient in theory calculations using Feynman diagrams, and to introduce the reader to gauge theories, which play such a central role in elementary particle physics. The theory is applied to quantum electrodynamics (QED), where quantum field theory had its early triumphs, and to weak interactions where the standard electro-weak theory has had many impressive successes. The treatment is based on the canonical quantization method, because readers will be familiar with this, because it brings out lucidly the connection between invariance and conservation laws, and because it leads directly to the Feynman diagram techniques which are so important in many branches of physics. In order to help inexperienced research students grasp the meaning of the theory and learn to handle it confidently, the mathematical formalism is developed from first principles, its physical

  4. Applications of genome editing by programmable nucleases to the metabolic engineering of secondary metabolites.

    Science.gov (United States)

    Leitão, Ana Lúcia; Costa, Marina C; Enguita, Francisco J

    2017-01-10

    Genome engineering is a branch of modern biotechnology composed of a cohort of protocols designed to construct and modify a genotype with the main objective of giving rise to a desired phenotype. Conceptually, genome engineering is based on the so called genome editing technologies, a group of genetic techniques that allow either to delete or to insert genetic information in a particular genomic locus. Ten years ago, genome editing tools were limited to virus-driven integration and homologous DNA recombination. However, nowadays the uprising of programmable nucleases is rapidly changing this paradigm. There are two main families of modern tools for genome editing depending on the molecule that controls the specificity of the system and drives the editor machinery to its place of action. Enzymes such as Zn-finger and TALEN nucleases are protein-driven genome editors; while CRISPR system is a nucleic acid-guided editing system. Genome editing techniques are still not widely applied for the design of new compounds with pharmacological activity, but they are starting to be considered as promising tools for rational genome manipulation in biotechnology applications. In this review we will discuss the potential applications of programmable nucleases for the metabolic engineering of secondary metabolites with biological activity. Copyright © 2016 Elsevier B.V. All rights reserved.

  5. Application of genome editing technologies to the study and treatment of hematological disease.

    Science.gov (United States)

    Pellagatti, Andrea; Dolatshad, Hamid; Yip, Bon Ham; Valletta, Simona; Boultwood, Jacqueline

    2016-01-01

    Genome editing technologies have advanced significantly over the past few years, providing a fast and effective tool to precisely manipulate the genome at specific locations. The three commonly used genome editing technologies are Zinc Finger Nucleases (ZFNs), Transcription Activator-Like Effector Nucleases (TALENs), and the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-associated Cas9 (CRISPR/Cas9) system. ZFNs and TALENs consist of endonucleases fused to a DNA-binding domain, while the CRISPR/Cas9 system uses guide RNAs to target the bacterial Cas9 endonuclease to the desired genomic location. The double-strand breaks made by these endonucleases are repaired in the cells either by non-homologous end joining, resulting in the introduction of insertions/deletions, or, if a repair template is provided, by homology directed repair. The ZFNs, TALENs and CRISPR/Cas9 systems take advantage of these repair mechanisms for targeted genome modification and have been successfully used to manipulate the genome in human cells. These genome editing tools can be used to investigate gene function, to discover new therapeutic targets, and to develop disease models. Moreover, these genome editing technologies have great potential in gene therapy. Here, we review the latest advances in the application of genome editing technology to the study and treatment of hematological disorders. Copyright © 2015 Elsevier Ltd. All rights reserved.

  6. Ethical and regulatory aspects of genome editing.

    Science.gov (United States)

    Kohn, Donald B; Porteus, Matthew H; Scharenberg, Andrew M

    2016-05-26

    Gene editing is a rapidly developing area of biotechnology in which the nucleotide sequence of the genome of living cells is precisely changed. The use of genome-editing technologies to modify various types of blood cells, including hematopoietic stem cells, has emerged as an important field of therapeutic development for hematopoietic disease. Although these technologies offer the potential for generation of transformative therapies for patients suffering from myriad disorders of hematopoiesis, their application for therapeutic modification of primary human cells is still in its infancy. Consequently, development of ethical and regulatory frameworks that ensure their safe and effective use is an increasingly important consideration. Here, we review a number of issues that have the potential to impact the clinical implementation of genome-editing technologies, and suggest paths forward for resolving them such that new therapies can be safely and rapidly translated to the clinic. © 2016 by The American Society of Hematology.

  7. JICST Thesaurus : Compilation of the 1987 Edition

    Science.gov (United States)

    Saito, Kazuo; Sakagami, Yasuhiko; Totsuka, Takayuki; Okano, Hiroyuki; Shirayama, Kunihiko; Gomibuchi, Takeshi

    We had requests such as enlargement of terms to be covered in the Thesaurus, description of term history and so on through the questionnaires to JOIS users specifically conducted on the occasion of preparing 1987 edition of JICST Thesaurus. Based on them the following measures were taken : addition of new terms by referring natural words stored in JICST database, addition of some Chinese characters used for it, addition of priority data among synonyms and others, and improvement of term relations by using English translated Japanese keywords. How the Thesaurus was edited, and measures against problems associated with editing are described. Necessity of the routine maintenance and subjects to be solved from now on are also described.

  8. Education at a Glance. OECD Indicators. [Second Edition] = Regards sur l'education. Les indicateurs de l'OCDE. [Seconde edition.

    Science.gov (United States)

    Bottani, Norberto; And Others

    The educational indicators in this report show how education systems in the 24 member countries of the Organisation for Economic Co-Operation and Development (OECD) resemble each other and differ. This edition, the second, builds on the 1992 volume, with more up-to-date figures and coverage of a wider range of subjects and countries. The 38…

  9. RNA Editing and Its Molecular Mechanism in Plant Organelles

    Science.gov (United States)

    Ichinose, Mizuho; Sugita, Mamoru

    2016-01-01

    RNA editing by cytidine (C) to uridine (U) conversions is widespread in plant mitochondria and chloroplasts. In some plant taxa, “reverse” U-to-C editing also occurs. However, to date, no instance of RNA editing has yet been reported in green algae and the complex thalloid liverworts. RNA editing may have evolved in early land plants 450 million years ago. However, in some plant species, including the liverwort, Marchantia polymorpha, editing may have been lost during evolution. Most RNA editing events can restore the evolutionarily conserved amino acid residues in mRNAs or create translation start and stop codons. Therefore, RNA editing is an essential process to maintain genetic information at the RNA level. Individual RNA editing sites are recognized by plant-specific pentatricopeptide repeat (PPR) proteins that are encoded in the nuclear genome. These PPR proteins are characterized by repeat elements that bind specifically to RNA sequences upstream of target editing sites. In flowering plants, non-PPR proteins also participate in multiple RNA editing events as auxiliary factors. C-to-U editing can be explained by cytidine deamination. The proteins discovered to date are important factors for RNA editing but a bona fide RNA editing enzyme has yet to be identified. PMID:28025543

  10. RNA Editing and Its Molecular Mechanism in Plant Organelles.

    Science.gov (United States)

    Ichinose, Mizuho; Sugita, Mamoru

    2016-12-23

    RNA editing by cytidine (C) to uridine (U) conversions is widespread in plant mitochondria and chloroplasts. In some plant taxa, "reverse" U-to-C editing also occurs. However, to date, no instance of RNA editing has yet been reported in green algae and the complex thalloid liverworts. RNA editing may have evolved in early land plants 450 million years ago. However, in some plant species, including the liverwort, Marchantia polymorpha, editing may have been lost during evolution. Most RNA editing events can restore the evolutionarily conserved amino acid residues in mRNAs or create translation start and stop codons. Therefore, RNA editing is an essential process to maintain genetic information at the RNA level. Individual RNA editing sites are recognized by plant-specific pentatricopeptide repeat (PPR) proteins that are encoded in the nuclear genome. These PPR proteins are characterized by repeat elements that bind specifically to RNA sequences upstream of target editing sites. In flowering plants, non-PPR proteins also participate in multiple RNA editing events as auxiliary factors. C-to-U editing can be explained by cytidine deamination. The proteins discovered to date are important factors for RNA editing but a bona fide RNA editing enzyme has yet to be identified.

  11. Spatial Hadamard encoding of J-edited spectroscopy using slice-selective editing pulses.

    Science.gov (United States)

    Chan, Kimberly L; Oeltzschner, Georg; Schär, Michael; Barker, Peter B; Edden, Richard A E

    2017-05-01

    A new approach for simultaneous dual-voxel J-difference spectral editing is described, which uses spatially selective spectral-editing pulses and Hadamard encoding. A theoretical framework for spatial Hadamard editing and reconstruction for parallel acquisition (SHERPA) was developed, applying gradient pulses during the frequency-selective editing pulses. Spectral simulations were performed for either one (gamma-aminobutyric acid, GABA) or two molecules (glutathione and lactate) simultaneously detected in two voxels. The method was tested in a two-compartment GABA phantom, and finally applied to the left and right hemispheres of 10 normal control subjects, scanned at 3 T. SHERPA was successfully implemented at 3 T and gave results in close agreement with conventional MEGA-PRESS scans in both the phantom and in vivo experiments. Simulations for GABA editing for (3 cm)3 voxels in the left and right hemispheres suggest that both editing efficiency losses and contamination between voxels are about 2%. Compared with conventional single-voxel single-metabolite J-difference editing, two- or fourfold acceleration is possible without significant loss of SNR using the SHERPA method. Unlike some other dual-voxel methods, the method can be used with single-channel receiver coils, and there is no SNR loss due to unfavorable receive-coil geometry factors. Copyright © 2017 John Wiley & Sons, Ltd.

  12. Introductory Nuclear Physics, 2nd Edition

    Science.gov (United States)

    Wong, Samuel S. M.

    1998-08-01

    A comprehensive, unified treatment of present-day nuclear physics-the fresh edition of a classic text/reference. "A fine and thoroughly up-to-date textbook on nuclear physics . . . most welcome." -Physics Today (on the First Edition). What sets Introductory Nuclear Physics apart from other books on the subject is its presentation of nuclear physics as an integral part of modern physics. Placing the discipline within a broad historical and scientific context, it makes important connections to other fields such as elementary particle physics and astrophysics. Now fully revised and updated, this Second Edition explores the changing directions in nuclear physics, emphasizing new developments and current research-from superdeformation to quark-gluon plasma. Author Samuel S.M. Wong preserves those areas that established the First Edition as a standard text in university physics departments, focusing on what is exciting about the discipline and providing a concise, thorough, and accessible treatment of the fundamental aspects of nuclear properties. In this new edition, Professor Wong: * Includes a chapter on heavy-ion reactions-from high-spin states to quark-gluon plasma * Adds a new chapter on nuclear astrophysics * Relates observed nuclear properties to the underlying nuclear interaction and the symmetry principles governing subatomic particles * Regroups material and appendices to make the text easier to use * Lists Internet links to essential databases and research projects * Features end-of-chapter exercises using real-world data. Introductory Nuclear Physics, Second Edition is an ideal text for courses in nuclear physics at the senior undergraduate or first-year graduate level. It is also an important resource for scientists and engineers working with nuclei, for astrophysicists and particle physicists, and for anyone wishing to learn more about trends in the field.

  13. Abundant off-target edits from site-directed RNA editing can be reduced by nuclear localization of the editing enzyme.

    Science.gov (United States)

    Vallecillo-Viejo, Isabel C; Liscovitch-Brauer, Noa; Montiel-Gonzalez, Maria Fernanda; Eisenberg, Eli; Rosenthal, Joshua J C

    2017-11-03

    Site-directed RNA editing (SDRE) is a general strategy for making targeted base changes in RNA molecules. Although the approach is relatively new, several groups, including our own, have been working on its development. The basic strategy has been to couple the catalytic domain of an adenosine (A) to inosine (I) RNA editing enzyme to a guide RNA that is used for targeting. Although highly efficient on-target editing has been reported, off-target events have not been rigorously quantified. In this report we target premature termination codons (PTCs) in messages encoding both a fluorescent reporter protein and the Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) protein transiently transfected into human epithelial cells. We demonstrate that while on-target editing is efficient, off-target editing is extensive, both within the targeted message and across the entire transcriptome of the transfected cells. By redirecting the editing enzymes from the cytoplasm to the nucleus, off-target editing is reduced without compromising the on-target editing efficiency. The addition of the E488Q mutation to the editing enzymes, a common strategy for increasing on-target editing efficiency, causes a tremendous increase in off-target editing. These results underscore the need to reduce promiscuity in current approaches to SDRE.

  14. Potential pitfalls of CRISPR/Cas9-mediated genome editing.

    Science.gov (United States)

    Peng, Rongxue; Lin, Guigao; Li, Jinming

    2016-04-01

    Recently, a novel technique named the clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated protein (Cas)9 system has been rapidly developed. This genome editing tool has improved our ability tremendously with respect to exploring the pathogenesis of diseases and correcting disease mutations, as well as phenotypes. With a short guide RNA, Cas9 can be precisely directed to target sites, and functions as an endonuclease to efficiently produce breaks in DNA double strands. Over the past 30 years, CRISPR has evolved from the 'curious sequences of unknown biological function' into a promising genome editing tool. As a result of the incessant development in the CRISPR/Cas9 system, Cas9 co-expressed with custom guide RNAs has been successfully used in a variety of cells and organisms. This genome editing technology can also be applied to synthetic biology, functional genomic screening, transcriptional modulation and gene therapy. However, although CRISPR/Cas9 has a broad range of action in science, there are several aspects that affect its efficiency and specificity, including Cas9 activity, target site selection and short guide RNA design, delivery methods, off-target effects and the incidence of homology-directed repair. In the present review, we highlight the factors that affect the utilization of CRISPR/Cas9, as well as possible strategies for handling any problems. Addressing these issues will allow us to take better advantage of this technique. In addition, we also review the history and rapid development of the CRISPR/Cas system from the time of its initial discovery in 2012. © 2015 FEBS.

  15. Transportation Energy Data Book, Edition 19

    Energy Technology Data Exchange (ETDEWEB)

    Davis, S.C.

    1999-09-01

    The Transportation Energy Data Book: Edition 19 is a statistical compendium prepared and published by Oak Ridge National Laboratory (ORNL) under contract with the Office of Transportation Technologies in the Department of Energy (DOE). Designed for use as a desk-top reference, the data book represents an assembly and display of statistics and information that characterize transportation activity, and presents data on other factors that influence transportation energy use. The purpose of this document is to present relevant statistical data in the form of tables and graphs. The latest editions of the Data Book are available to a larger audience via the Internet (http://www-cta.ornl.gov/data/tedb.htm).

  16. Editing plants for virus resistance using CRISPR-Cas.

    Science.gov (United States)

    Green, J C; Hu, J S

    This minireview summarizes recent advancements using the clustered regularly interspaced palindromic repeats-associated nuclease systems (CRISPR-Cas) derived from prokaryotes to breed plants resistant to DNA and RNA viruses. The CRISPR-Cas system represents a powerful tool able to edit and insert novel traits into plants precisely at chosen loci offering enormous advantages to classical breeding. Approaches to engineering plant virus resistance in both transgenic and non-transgenic plants are discussed. Iterations of the CRISPR-Cas system, FnCas9 and C2c2 capable of editing RNA in eukaryotic cells offer a particular advantage for providing resistance to RNA viruses which represent the great majority of known plant viruses. Scientists have obtained conflicting results using gene silencing technology to produce transgenic plants resistant to geminiviruses. CRISPR-Cas systems engineered in plants to target geminiviruses have consistently reduced virus accumulation providing increased resistance to virus infection. CRISPR-Cas may provide novel and reliable approaches to control geminiviruses and other ssDNA viruses such as Banana bunchy top virus (BBTV).

  17. CRISPR Editing Technology in Biological and Biomedical Investigation.

    Science.gov (United States)

    White, Martyn K; Kaminski, Rafal; Young, Won-Bin; Roehm, Pamela C; Khalili, Kamel

    2017-11-01

    The CRISPR or clustered regularly interspaced short palindromic repeats system is currently the most advanced approach to genome editing and is notable for providing an unprecedented degree of specificity, effectiveness, and versatility in genetic manipulation. CRISPR evolved as a prokaryotic immune system to provide an acquired immunity and resistance to foreign genetic elements such as bacteriophages. It has recently been developed into a tool for the specific targeting of nucleotide sequences within complex eukaryotic genomes for the purpose of genetic manipulation. The power of CRISPR lies in its simplicity and ease of use, its flexibility to be targeted to any given nucleotide sequence by the choice of an easily synthesized guide RNA, and its ready ability to continue to undergo technical improvements. Applications for CRISPR are numerous including creation of novel transgenic cell animals for research, high-throughput screening of gene function, potential clinical gene therapy, and nongene-editing approaches such as modulating gene activity and fluorescent tagging. In this prospect article, we will describe the salient features of the CRISPR system with an emphasis on important drawbacks and considerations with respect to eliminating off-target events and obtaining efficient CRISPR delivery. We will discuss recent technical developments to the system and we will illustrate some of the most recent applications with an emphasis on approaches to eliminate human viruses including HIV-1, JCV and HSV-1 and prospects for the future. J. Cell. Biochem. 118: 3586-3594, 2017. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

  18. Messenger RNA editing in mammals: new members of the APOBEC family seeking roles in the family business.

    Science.gov (United States)

    Wedekind, Joseph E; Dance, Geoffrey S C; Sowden, Mark P; Smith, Harold C

    2003-04-01

    Alteration of mRNA sequence through base modification mRNA editing frequently generates protein diversity. Several proteins have been identified as being similar to C-to-U mRNA editing enzymes based on their structural domains and the occurrence of a catalytic domain characteristic of cytidine deaminases. In light of the hypothesis that these proteins might represent novel mRNA editing systems that could affect proteome diversity, we consider their structure, expression and relevance to biomedically significant processes or pathologies.

  19. Shielded Metal Arc Welding and Carbon Arc Cutting--Air. Teacher Edition [and] Student Edition [and] Student Workbook. Third Edition.

    Science.gov (United States)

    Harper, Eddie; Knapp, John

    This document contains the teacher and student texts and student workbook for a secondary-level course in shielded metal arc welding (SMAW) and carbon arc cutting that consists of units on the following topics: SMAW safety; SMAW equipment, applications, and techniques; hardfacing; and carbon arc cutting--air. The teacher edition includes the…

  20. Pro Tools 9 music production, recording, editing and mixing

    CERN Document Server

    Collins, Mike

    2012-01-01

    Prepare yourself to be a great producer when using Pro Tools in your studio. Pro Tools 9: Music Production, Recording, Editing & Mixing is the definitive guide to the software for new and professional users, providing you with all the vital techniques that you need to know. Covering both Pro Tools HD 9 and Pro Tools 9 software, this book is extensively illustrated in color and packed with time saving hints and tips - making it a great reference to keep on hand.* Become an expert Pro Tools user and fully unlock the potential of your system! * Discover how to achieve complete co

  1. Geometry The Language of Space and Form (Revised Edition)

    CERN Document Server

    Tabak, John

    2011-01-01

    Geometry, Revised Edition describes geometry in antiquity. Beginning with a brief description of some of the geometry that preceded the geometry of the Greeks, it takes up the story of geometry during the European Renaissance as well as the significant mathematical progress in other areas of the world. It also discusses the analytic geometry of Ren Descartes and Pierre Fermat, the alternative coordinate systems invented by Isaac Newton, and the solid geometry of Leonhard Euler. Also included is an overview of the geometry of one of the most successful mathematicians of the 19th century, Bernha

  2. Radar principles for the nonspecialist, 3rd edition

    CERN Document Server

    Toomay, John

    2004-01-01

    Radar Principles for the Non-specialist, Third Edition continues its popular tradition: to distill the very complex technology of radar into its fundamentals, tying them to the laws of nature on one end and to the most modern and complex systems on the other. It starts with electromagnetic propagation, describes a radar of the utmost simplicity, and derives the radar range equation from that simple radar. Once the range equation is available, the book attacks the meaning of each term in it, moving through antennas, detection and tracking, radar cross-section, waveforms andsignal proces

  3. Genes (including RNA editing information) - RMG | LSDB Archive [Life Science Database Archive metadata

    Lifescience Database Archive (English)

    Full Text Available t tested T: transcribed N: not transcribed Editing site Editing site N: not transcribed Previous reports on ...editing sites Previous reports on editing sites Strand Strand S: sense A: antisense exon1 start Start positi

  4. RNA Editing and Drug Discovery for Cancer Therapy

    Directory of Open Access Journals (Sweden)

    Wei-Hsuan Huang

    2013-01-01

    Full Text Available RNA editing is vital to provide the RNA and protein complexity to regulate the gene expression. Correct RNA editing maintains the cell function and organism development. Imbalance of the RNA editing machinery may lead to diseases and cancers. Recently, RNA editing has been recognized as a target for drug discovery although few studies targeting RNA editing for disease and cancer therapy were reported in the field of natural products. Therefore, RNA editing may be a potential target for therapeutic natural products. In this review, we provide a literature overview of the biological functions of RNA editing on gene expression, diseases, cancers, and drugs. The bioinformatics resources of RNA editing were also summarized.

  5. Direct Visual Editing of Node Attributes in Graphs

    Directory of Open Access Journals (Sweden)

    Christian Eichner

    2016-10-01

    Full Text Available There are many expressive visualization techniques for analyzing graphs. Yet, there is only little research on how existing visual representations can be employed to support data editing. An increasingly relevant task when working with graphs is the editing of node attributes. We propose an integrated visualize-and-edit approach to editing attribute values via direct interaction with the visual representation. The visualize part is based on node-link diagrams paired with attribute-dependent layouts. The edit part is as easy as moving nodes via drag-and-drop gestures. We present dedicated interaction techniques for editing quantitative as well as qualitative attribute data values. The benefit of our novel integrated approach is that one can directly edit the data while the visualization constantly provides feedback on the implications of the data modifications. Preliminary user feedback indicates that our integrated approach can be a useful complement to standard non-visual editing via external tools.

  6. An RNA editing fingerprint of cancer stem cell reprogramming

    National Research Council Canada - National Science Library

    Crews, Leslie A; Jiang, Qingfei; Zipeto, Maria A; Lazzari, Elisa; Court, Angela C; Ali, Shawn; Barrett, Christian L; Frazer, Kelly A; Jamieson, Catriona Hm

    2015-01-01

    .... The objectives of this study were to validate RNA editing of a subset of cancer stem cell-associated transcripts, and to develop a quantitative RNA editing fingerprint assay for rapid detection...

  7. Editörden Veda

    Directory of Open Access Journals (Sweden)

    Serpil Salaçin

    2000-04-01

    ştirenler. Kendine göre oıtak düşünce ve yürek ürünü olan dergiyi asılsız ve haksız yorumlayanlar. Ama tüm zorlukların üstesinden gelindiğini düşünüyorum. Bu nedenle benim kişisel olarak baştan beri üstlenmeyi düşündüğüm görevimin tamamlandığını düşünüyorum. Aşağıda bir kaç gün önce derneğimiz başkanlığına gönderdiğim görevden affım ile ilgili mektubu bu derneğin üyeleri olarak sizlerin de öğrenmeye hakkınız olduğunu düşünerek sizlerle paylaşmak istiyorum. Adli Tıp Uzmanları Derneği Başkanlığına, Sayın Prof. Dr. Gürsel Çetin, 26.03.2001 Derneğimizin kuruluşundan bu yana meslektaşlarımızın özverileri ile üretilenlere katkıda bulunmak hepimiz için görev olarak algılanıp yerine getirilmeye çalışıldı. Bu etkinlikler içinde bu alanın bilimsel üretimlerini paylaşabileceği, danışmanlı olarak çalışabilecek bir derginin oluşturulması fikri de derneğimizin bir etkinliğinde sizin de bildiğiniz koşullarda ortaya atıldı. Benimsendi. Bu üretimin gerçekleştirilmesinde görev verilenlerden de biri de bendim. Çıkarılacak derginin editörlük görevini bana vermiştiniz. Bana duyulan güvene ve verilmiş olan bu göreve teşekkür ediyorum. Adli Tıp Bülteni, ismi ile eldeki sınırlı olanaklarla rengi, kapağı, amblemi, formatı ile bir grup özverili arkadaşımızla birlikte doğdu. (ISSN 1300-865X kaydını aldı. Ben bu görevi bir meslek misyonu olarak gerçekleştirmeye çalıştım. Ulusal ve uluslar arası danışma kurulunun oluşturulmasında edindiğim uluslararası ilişkileri devreye sokarak bu kurulların zenginleştirilmesine çalıştım. Birlikte çalıştığımız arkadaşlarımızın her birinin özverileri ile dergi yazım kuralları, gelen makalelerin kaydı, danışmanlara gönderilmesi, danışman ve yazar arasındaki yazışmaların gerçekleştirilmesi, her sayının içeriği ve makale dışı yazı düzenlemeleri, sîzlerin de yakından bildiği bir

  8. CRISPR/Cas9—Advancing Orthopoxvirus Genome Editing for Vaccine and Vector Development

    Science.gov (United States)

    Okoli, Arinze; Okeke, Malachy I.; Tryland, Morten; Moens, Ugo

    2018-01-01

    The clustered regularly interspaced short palindromic repeat (CRISPR)/associated protein 9 (Cas9) technology is revolutionizing genome editing approaches. Its high efficiency, specificity, versatility, flexibility, simplicity and low cost have made the CRISPR/Cas9 system preferable to other guided site-specific nuclease-based systems such as TALENs (Transcription Activator-like Effector Nucleases) and ZFNs (Zinc Finger Nucleases) in genome editing of viruses. CRISPR/Cas9 is presently being applied in constructing viral mutants, preventing virus infections, eradicating proviral DNA, and inhibiting viral replication in infected cells. The successful adaptation of CRISPR/Cas9 to editing the genome of Vaccinia virus paves the way for its application in editing other vaccine/vector-relevant orthopoxvirus (OPXV) strains. Thus, CRISPR/Cas9 can be used to resolve some of the major hindrances to the development of OPXV-based recombinant vaccines and vectors, including sub-optimal immunogenicity; transgene and genome instability; reversion of attenuation; potential of spread of transgenes to wildtype strains and close contacts, which are important biosafety and risk assessment considerations. In this article, we review the published literature on the application of CRISPR/Cas9 in virus genome editing and discuss the potentials of CRISPR/Cas9 in advancing OPXV-based recombinant vaccines and vectors. We also discuss the application of CRISPR/Cas9 in combating viruses of clinical relevance, the limitations of CRISPR/Cas9 and the current strategies to overcome them. PMID:29361752

  9. CRISPR/Cas9-Advancing Orthopoxvirus Genome Editing for Vaccine and Vector Development.

    Science.gov (United States)

    Okoli, Arinze; Okeke, Malachy I; Tryland, Morten; Moens, Ugo

    2018-01-22

    The clustered regularly interspaced short palindromic repeat (CRISPR)/associated protein 9 (Cas9) technology is revolutionizing genome editing approaches. Its high efficiency, specificity, versatility, flexibility, simplicity and low cost have made the CRISPR/Cas9 system preferable to other guided site-specific nuclease-based systems such as TALENs (Transcription Activator-like Effector Nucleases) and ZFNs (Zinc Finger Nucleases) in genome editing of viruses. CRISPR/Cas9 is presently being applied in constructing viral mutants, preventing virus infections, eradicating proviral DNA, and inhibiting viral replication in infected cells. The successful adaptation of CRISPR/Cas9 to editing the genome of Vaccinia virus paves the way for its application in editing other vaccine/vector-relevant orthopoxvirus (OPXV) strains. Thus, CRISPR/Cas9 can be used to resolve some of the major hindrances to the development of OPXV-based recombinant vaccines and vectors, including sub-optimal immunogenicity; transgene and genome instability; reversion of attenuation; potential of spread of transgenes to wildtype strains and close contacts, which are important biosafety and risk assessment considerations. In this article, we review the published literature on the application of CRISPR/Cas9 in virus genome editing and discuss the potentials of CRISPR/Cas9 in advancing OPXV-based recombinant vaccines and vectors. We also discuss the application of CRISPR/Cas9 in combating viruses of clinical relevance, the limitations of CRISPR/Cas9 and the current strategies to overcome them.

  10. Effective gene editing by high-fidelity base editor 2 in mouse zygotes

    Directory of Open Access Journals (Sweden)

    Puping Liang

    2017-06-01

    Full Text Available ABSTRACT Targeted point mutagenesis through homologous recombination has been widely used in genetic studies and holds considerable promise for repairing disease-causing mutations in patients. However, problems such as mosaicism and low mutagenesis efficiency continue to pose challenges to clinical application of such approaches. Recently, a base editor (BE system built on cytidine (C deaminase and CRISPR/Cas9 technology was developed as an alternative method for targeted point mutagenesis in plant, yeast, and human cells. Base editors convert C in the deamination window to thymidine (T efficiently, however, it remains unclear whether targeted base editing in mouse embryos is feasible. In this report, we generated a modified high-fidelity version of base editor 2 (HF2-BE2, and investigated its base editing efficacy in mouse embryos. We found that HF2-BE2 could convert C to T efficiently, with up to 100% biallelic mutation efficiency in mouse embryos. Unlike BE3, HF2-BE2 could convert C to T on both the target and non-target strand, expanding the editing scope of base editors. Surprisingly, we found HF2-BE2 could also deaminate C that was proximal to the gRNA-binding region. Taken together, our work demonstrates the feasibility of generating point mutations in mouse by base editing, and underscores the need to carefully optimize base editing systems in order to eliminate proximal-site deamination.

  11. [The Korean and Japanese editions of the Korean medical book-Dongyi Baojian].

    Science.gov (United States)

    Kim, Nam-I

    2011-03-01

    From 1613, Dongyi Baojian (written by Huh Joon) has been published in more than 30 editions in Korea, China and Japan. There are 13 kinds of editions in Korea-movable type edition in the Kuichou year; block printed Lingying edition in the Jihai year; the first Lingying edition in Jiaxu year; the edited Lingying edition in the Jiaxu year and the Wanying reprint edition in the Jiaxu year. There are 2 kinds of editions in Japan-the first edition in the Xiangbao period and the reprint edition in the Kuanzheng period.

  12. Comprehensive Protocols for CRISPR/Cas9-based Gene Editing in Human Pluripotent Stem Cells.

    Science.gov (United States)

    Santos, David P; Kiskinis, Evangelos; Eggan, Kevin; Merkle, Florian T

    2016-08-17

    Genome editing of human pluripotent stem cells (hPSCs) with the CRISPR/Cas9 system has the potential to revolutionize hPSC-based disease modeling, drug screening, and transplantation therapy. Here, we aim to provide a single resource to enable groups, even those with limited experience with hPSC culture or the CRISPR/Cas9 system, to successfully perform genome editing. The methods are presented in detail and are supported by a theoretical framework to allow for the incorporation of inevitable improvements in the rapidly evolving gene-editing field. We describe protocols to generate hPSC lines with gene-specific knock-outs, small targeted mutations, or knock-in reporters. © 2016 by John Wiley & Sons, Inc. Copyright © 2016 John Wiley & Sons, Inc.

  13. Comprehensive protocols for CRISPR/Cas9-based gene editing in human pluripotent stem cells

    Science.gov (United States)

    Santos, David P.; Kiskinis, Evangelos; Eggan, Kevin; Merkle, Florian T.

    2016-01-01

    Application of the CRISPR/Cas9 system to edit the genomes of human pluripotent stem cells (hPSCs) has the potential to revolutionize hPSC-based disease modeling, drug screening, and transplantation therapy. Here, we aim to provide a single resource to enable groups, even those with limited experience with hPSC culture or the CRISPR/Cas9 system, to successfully perform genome editing. The methods are presented in detail and are supported by a theoretical framework to allow for the incorporation of inevitable improvements in the rapidly evolving gene-editing field. We describe protocols to generate hPSC lines with gene-specific knock-outs, small targeted mutations, or knock-in reporters. PMID:27532820

  14. Space Science Reference Guide, 2nd Edition

    Science.gov (United States)

    Dotson, Renee (Editor)

    2003-01-01

    This Edition contains the following reports: GRACE: Gravity Recovery and Climate Experiment; Impact Craters in the Solar System; 1997 Apparition of Comet Hale-Bopp Historical Comet Observations; Baby Stars in Orion Solve Solar System Mystery; The Center of the Galaxy; The First Rock in the Solar System; Fun Times with Cosmic Rays; The Gamma-Ray Burst Next Door; The Genesis Mission: An Overview; The Genesis Solar Wind Sample Return Mission; How to Build a Supermassive Black Hole; Journey to the Center of a Neutron Star; Kepler's Laws of Planetary Motion; The Kuiper Belt and Oort Cloud ; Mapping the Baby Universe; More Hidden Black Hole Dangers; A Polarized Universe; Presolar Grains of Star Dust: Astronomy Studied with Microscopes; Ring Around the Black Hole; Searching Antarctic Ice for Meteorites; The Sun; Astrobiology: The Search for Life in the Universe; Europa and Titan: Oceans in the Outer Solar System?; Rules for Identifying Ancient Life; Inspire ; Remote Sensing; What is the Electromagnetic Spectrum? What is Infrared? How was the Infrared Discovered?; Brief History of Gyroscopes ; Genesis Discovery Mission: Science Canister Processing at JSC; Genesis Solar-Wind Sample Return Mission: The Materials ; ICESat: Ice, Cloud, and Land Elevation Satellite ICESat: Ice, Cloud, and Land; Elevation Satellite ICESat: Ice, Cloud, and Land Elevation Satellite ICESat: Ice, Cloud, and Land Elevation Satellite ICESat: Ice, Cloud, and Land Elevation Satellite Measuring Temperature Reading; The Optical Telescope ; Space Instruments General Considerations; Damage by Impact: The Case at Meteor Crater, Arizona; Mercury Unveiled; New Data, New Ideas, and Lively Debate about Mercury; Origin of the Earth and Moon; Space Weather: The Invisible Foe; Uranus, Neptune, and the Mountains of the Moon; Dirty Ice on Mars; For a Cup of Water on Mars; Life on Mars?; The Martian Interior; Meteorites from Mars, Rocks from Canada; Organic Compounds in Martian Meteorites May be Terrestrial

  15. Dynamic landscape and regulation of RNA editing in mammals.

    Science.gov (United States)

    Tan, Meng How; Li, Qin; Shanmugam, Raghuvaran; Piskol, Robert; Kohler, Jennefer; Young, Amy N; Liu, Kaiwen Ivy; Zhang, Rui; Ramaswami, Gokul; Ariyoshi, Kentaro; Gupte, Ankita; Keegan, Liam P; George, Cyril X; Ramu, Avinash; Huang, Ni; Pollina, Elizabeth A; Leeman, Dena S; Rustighi, Alessandra; Goh, Y P Sharon; Chawla, Ajay; Del Sal, Giannino; Peltz, Gary; Brunet, Anne; Conrad, Donald F; Samuel, Charles E; O'Connell, Mary A; Walkley, Carl R; Nishikura, Kazuko; Li, Jin Billy

    2017-10-11

    Adenosine-to-inosine (A-to-I) RNA editing is a conserved post-transcriptional mechanism mediated by ADAR enzymes that diversifies the transcriptome by altering selected nucleotides in RNA molecules. Although many editing sites have recently been discovered, the extent to which most sites are edited and how the editing is regulated in different biological contexts are not fully understood. Here we report dynamic spatiotemporal patterns and new regulators of RNA editing, discovered through an extensive profiling of A-to-I RNA editing in 8,551 human samples (representing 53 body sites from 552 individuals) from the Genotype-Tissue Expression (GTEx) project and in hundreds of other primate and mouse samples. We show that editing levels in non-repetitive coding regions vary more between tissues than editing levels in repetitive regions. Globally, ADAR1 is the primary editor of repetitive sites and ADAR2 is the primary editor of non-repetitive coding sites, whereas the catalytically inactive ADAR3 predominantly acts as an inhibitor of editing. Cross-species analysis of RNA editing in several tissues revealed that species, rather than tissue type, is the primary determinant of editing levels, suggesting stronger cis-directed regulation of RNA editing for most sites, although the small set of conserved coding sites is under stronger trans-regulation. In addition, we curated an extensive set of ADAR1 and ADAR2 targets and showed that many editing sites display distinct tissue-specific regulation by the ADAR enzymes in vivo. Further analysis of the GTEx data revealed several potential regulators of editing, such as AIMP2, which reduces editing in muscles by enhancing the degradation of the ADAR proteins. Collectively, our work provides insights into the complex cis- and trans-regulation of A-to-I editing.

  16. Tags, micro-tags and tag editing: improving internet search

    Science.gov (United States)

    Rogowitz, Bernice E.; Topkara, Mercan

    2009-02-01

    Social tagging is an emerging methodology that allows individual users to assign semantic keywords to content on the web. Popular web services allow the community of users to search for content based on these user-defined tags. Tags are typically attached to a whole entity such as a web page (e.g., del.icio.us), a video (e.g., YouTube), a product description (e.g., Amazon) or a photograph (e.g., Flickr). However, finding specific information within a whole entity can be a difficult, time-intensive process. This is especially true for content such as video, where the information sought may be a small segment within a very long presentation. Moreover, the tags provided by a community of users may be incorrect, conflicting, or incomplete when used as search terms. In this paper we introduce a system that allows users to create "micro-tags," that is, semantic markers that are attached to subsets of information. These micro-tags give the user the ability to direct attention to specific subsets within a larger and more complex entity, and the set of micro-tags provides a more nuanced description of the full content. Also, when these micro-tags are used as search terms, there is no need to do a serial search of the content, since micro-tags draw attention to the semantic content of interest. This system also provides a mechanism that allows users in the community to edit and delete each others' tags, using the community to refine and improve tag quality. We will also report on empirical studies that demonstrate the value of micro-tagging and tag editing and explore the role micro-tags and tag editing will play in future applications.

  17. Development of a fast and easy method for Escherichia coli genome editing with CRISPR/Cas9.

    Science.gov (United States)

    Zhao, Dongdong; Yuan, Shenli; Xiong, Bin; Sun, Hongnian; Ye, Lijun; Li, Jing; Zhang, Xueli; Bi, Changhao

    2016-12-01

    Microbial genome editing is a powerful tool to modify chromosome in way of deletion, insertion or replacement, which is one of the most important techniques in metabolic engineering research. The emergence of CRISPR/Cas9 technique inspires various genomic editing methods. In this research, the goal of development of a fast and easy method for Escherichia coli genome editing with high efficiency is pursued. For this purpose, we designed modular plasmid assembly strategy, compared effects of different length of homologous arms for recombination, and tested different sets of recombinases. The final technique we developed only requires one plasmid construction and one transformation of practice to edit a genomic locus with 3 days and minimal lab work. In addition, the single temperature sensitive plasmid is easy to eliminate for another round of editing. Especially, process of the modularized editing plasmid construction only takes 4 h. In this study, we developed a fast and easy genome editing procedure based on CRISPR/Cas9 system that only required the work of one plasmid construction and one transformation, which allowed modification of a chromosome locus within 3 days and could be performed continuously for multiple loci.

  18. 45 CFR 73.735-705 - Writing and editing.

    Science.gov (United States)

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false Writing and editing. 73.735-705 Section 73.735-705... Outside Activities § 73.735-705 Writing and editing. (a) Employees are encouraged to engage in outside writing and editing whether or not done for compensation, when such activity is not otherwise prohibited...

  19. Soil Carbon Sequestration and the Greenhouse Effect (2nd Edition)

    Science.gov (United States)

    This volume is a second edition of the book “Soil Carbon Sequestration and The Greenhouse Effect”. The first edition was published in 2001 as SSSA Special Publ. #57. The present edition is an update of the concepts, processes, properties, practices and the supporting data. All chapters are new co...

  20. Human Resources Administration: A School-Based Perspective. Fourth Edition

    Science.gov (United States)

    Smith, Richard

    2009-01-01

    Enhanced and updated, this Fourth Edition of Richard E. Smith's highly successful text examines the growing role of the principal in planning, hiring, staff development, supervision, and other human resource functions. The Fourth Edition includes new sections on ethics, induction, and the role of the mentor teacher. This edition also introduces…