WorldWideScience

Sample records for project axolotl newsletter

  1. Project Solo; Newsletter Number Twenty.

    Science.gov (United States)

    Pittsburgh Univ., PA. Project Solo.

    Three Project Solo modules are presented. They are designed to teach the concepts of elementary matrix operation, matrix multiplication, and finite-state automata. Together with the module on communication matrices from Newsletter #17 they form a well motivated but structured path to expertise in this area. (JY)

  2. Extra! Extra! Read All about It! How to Construct a Newsletter: A Student Project

    Science.gov (United States)

    Renard, Monika; Tracy, Kay

    2011-01-01

    This article discusses a student project that highlights the value of printed employee newsletters as an internal communication tool for organizations. The project provides specific information and directions on how to develop an employee newsletter on human resource topics. Microsoft Word 2007 is used for newsletter formatting. The article also…

  3. Eleven Tribes Jump START Clean Energy Projects, Summer 2012 (Newsletter)

    Energy Technology Data Exchange (ETDEWEB)

    2012-06-01

    This newsletter describes key activities of the DOE Office of Indian Energy Policy and Programs for Summer 2012. The U.S. Department of Energy Office of Indian Energy Policy and Programs (DOE-IE) has selected 11 Tribes - five in Alaska and six in the contiguous United States - to receive on-the-ground technical support for community-based energy efficiency and renewable energy projects as part of DOE-IE's Strategic Technical Assistance Response Team (START) Program. START finalists were selected based on the clarity of their requests for technical assistance and the ability of START to successfully work with their projects or community. Technical experts from DOE and its National Renewable Energy Laboratory (NREL) will work directly with community-based project teams to analyze local energy issues and assist the Tribes in moving their projects forward. In Alaska, the effort will be bolstered by DOE-IE's partnership with the Denali Commission, which will provide additional assistance and expertise, as well as funding to fuel the Alaska START initiative.

  4. Harvard Project Physics Newsletter 10. The Project Physics Course, Text.

    Science.gov (United States)

    Harvard Univ., Cambridge, MA. Harvard Project Physics.

    A short description of the availability of Harvard Project Physics course components is given as is a discussion of the growth of the use of Project Physics in schools, including some enrollment data and survey results. Locations of the 1970 and 1971 Summer Institutes are listed. Adaptations of Project Physics course outside the United States are…

  5. Newsletter: work of the Committee and projects funded

    Energy Technology Data Exchange (ETDEWEB)

    1974-12-01

    Information about the work of the Committee is summarized. It has developed a series of project priorities. These are as follows in order of priority: projects that determine current and future energy demand; projects concerned with the conservation and more efficient use of energy; projects concerned with the assessment of indigenous energy resources; projects concerned with the assessment of the human, financial, and organizational resources for increasing energy production and use; projects concerned with economic, technological, and environmental aspects of energy use and production over the next 15 years and beyond the next 15 years. In addition, environmental and sociological projects are considered to be very important. All projects are required to have included consideration of environmental and sociological issues but there may also be specific environmental projects such as the one related to cooling water pond modelling (MCW)

  6. ISAM newsletter. No. 6

    International Nuclear Information System (INIS)

    Batandjieva, Borislava

    2001-12-01

    This issue of the ISAM newsletter informs on the ISAM Co-ordinating Group Meeting held in September 2000 at the IAEA Headquarters in Vienna and provides a brief overview of the final report on Safety Assessment Methodologies for Near Surface Waste Disposal Facilities. The newsletter announces the new IAEA co-ordinated research project - Application of Safety Assessment Methodologies for Near Surface Disposal Facilities (ASAM). The newsletter also briefs on the related IAEA activities

  7. New England Wind Forum: A Wind Powering America Project, Volume 1, Issue 4 -- May 2008 (Newsletter)

    Energy Technology Data Exchange (ETDEWEB)

    Grace, R. C.; Gifford, J.

    2008-05-01

    The New England Wind Forum electronic newsletter summarizes the latest news in wind energy development activity, markets, education, and policy in the New England region. It also features an interview with a key figure influencing New England's wind energy development. Volume 1, Issue 4 features an interview with Brian Fairbank, president and CEO of Jiminy Peak Mountain Resort.

  8. New England Wind Forum: A Wind Powering America Project, Volume 1, Issue 3 -- October 2007 (Newsletter)

    Energy Technology Data Exchange (ETDEWEB)

    Grace, R. C.; Gifford, J.

    2007-10-01

    The New England Wind Forum electronic newsletter summarizes the latest news in wind energy development activity, markets, education, and policy in the New England region. It also features an interview with a key figure influencing New England's wind energy development. Volume 1, Issue 3 features an interview with Andrew Dzykewicz, Commissioner of the Rhode Island Office of Energy Resources.

  9. The Mexican Axolotl in Schools

    Science.gov (United States)

    Thomas, R. M.

    1976-01-01

    Suggests and describes laboratory activities in which the Mexican axolotl (Ambystoma mexicanum Shaw) is used, including experiments in embryology and early development, growth and regeneration, neoteny and metamorphosis, genetics and coloration, anatomy and physiology, and behavior. Discusses care and maintenance of animals. (CS)

  10. Generation of axolotl hematopoietic chimeras

    Directory of Open Access Journals (Sweden)

    David Lopez

    2015-02-01

    Full Text Available Wound repair is an extremely complex process that requires precise coordination between various cell types including immune cells.  Unfortunately, in mammals this usually results in scar formation instead of restoration of the original fully functional tissue, otherwise known as regeneration.  Various animal models like frogs and salamanders are currently being studied to determine the intracellular and intercellular pathways, controlled by gene expression, that elicit cell proliferation, differentiation, and migration of cells during regenerative healing.  Now, the necessary genetic tools to map regenerative pathways are becoming available for the axolotl salamander, thus allowing comparative studies between scarring and regeneration.  Here, we describe in detail three methods to produce axolotl hematopoietic cell-tagged chimeras for the study of hematopoiesis and regeneration.

  11. Transgenesis in axolotl (Ambystoma mexicanum).

    Science.gov (United States)

    Khattak, Shahryar; Tanaka, Elly M

    2015-01-01

    Transgenic animals have been indispensable in elucidating and deciphering mechanisms underlying various biological phenomena. In regeneration, transgenic animals expressing fluorescent protein genes have been crucial for identifying the source cells for regeneration and the mechanism of blastema formation. Animals are usually generated by manipulating their genome using various techniques at/in one cell embryo/fertilized egg stage. Here, we describe the generation of germline transgenic axolotls (Ambystoma mexicanum) using the I-SceI meganuclease and Tol2 transposase.

  12. Mutation breeding newsletter. No. 34

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-07-01

    This issue of the Newsletter presents abstracts and short communications of research results on radiation and chemical induced mutation breeding projects. Positive traits such as disease resistance and increased productivity are highlighted.

  13. Mutation breeding newsletter. No. 34

    International Nuclear Information System (INIS)

    1989-07-01

    This issue of the Newsletter presents abstracts and short communications of research results on radiation and chemical induced mutation breeding projects. Positive traits such as disease resistance and increased productivity are highlighted

  14. Mutation breeding newsletter. No. 36

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-07-01

    This issue of the Newsletter presents abstracts and short communications of research results on radiation and chemical induced mutation breeding projects. Positive traits such as disease resistance and increased productivity are highlighted.

  15. Mutation breeding newsletter. No. 33

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1989-01-01

    This issue of the newsletter reports a number of research news and research abstracts on application of radiation induced mutation techniques to increase mutagenesis and mutation frequency in plant breeding projects.

  16. Mutation breeding newsletter. No. 36

    International Nuclear Information System (INIS)

    1990-07-01

    This issue of the Newsletter presents abstracts and short communications of research results on radiation and chemical induced mutation breeding projects. Positive traits such as disease resistance and increased productivity are highlighted

  17. Mutation breeding newsletter. No. 33

    International Nuclear Information System (INIS)

    1989-01-01

    This issue of the newsletter reports a number of research news and research abstracts on application of radiation induced mutation techniques to increase mutagenesis and mutation frequency in plant breeding projects

  18. OAS :: Newsletters

    Science.gov (United States)

    subscriptions Videos Photos Live Webcast Social Media Facebook @oasofficial Facebook Twitter @oas_official Audios Photos Social Media Facebook Twitter Newsletters Press and Communications Department Contact us at Rights Actions against Corruption C Children Civil Registry Civil Society Contact Us Culture Cyber

  19. An introduction to the Mexican axolotl (Ambystoma mexicanum).

    Science.gov (United States)

    Gresens, Jill

    2004-10-01

    A number of unusual traits, including a remarkable capacity for wound healing and limb regeneration, make the axolotl an interesting animal model. The author provides an overview of axolotl care and use in biomedical research.

  20. ITER EDA newsletter. V. 6, no. 3

    International Nuclear Information System (INIS)

    1997-03-01

    This issue of the ITER EDA (Engineering Design Activities) Newsletter reports on the Central Solenoid Model Coil Project (Function, Objectives, Design, Project Management, Testing, Work Organization and Status). 8 figs, 2 tabs

  1. ITER CTA newsletter. No. 3

    International Nuclear Information System (INIS)

    2001-11-01

    This ITER CTA newsletter comprises reports of Dr. P. Barnard, Iter Canada Chairman and CEO, about the progress of the first formal ITER negotiations and about the demonstration of details of Canada's bid on ITER workshops, and Dr. V. Vlasenkov, Project Board Secretary, about the meeting of the ITER CTA project board

  2. Increase Student Engagement through Project-Based Learning. Best Practices Newsletter

    Science.gov (United States)

    Southern Regional Education Board (SREB), 2015

    2015-01-01

    We learn by doing. This simple philosophy is at the heart of project-based learning in the 21st-century classroom. It is grounded in the belief that the stand and lecture approach to teaching, worksheets and rote memorization are not enough to move students down a path to the deep learning necessary for success in college and careers. Essential…

  3. The newsletter 'European Research in Radiological Sciences'

    International Nuclear Information System (INIS)

    Pihet, P.; D'Errico, F.; Doerr, W.; Gruenberger, M.; Schofield, P.

    2004-01-01

    The newsletter 'European Research in Radiological Sciences' is jointly published by the European Late Effects Project Group and the European Radiation Dosimetry Group to disseminate information about research projects and activities carried out under the EURATOM Framework Programme. Since May 2003, the Newsletter is operated interactively from the Internet. The new site uses a dedicated database that automatically generates HTML pages. This system developed at the Univ. of Cambridge provides an innovative approach to improve the dissemination of project information. (authors)

  4. ITER CTA newsletter. No. 4

    International Nuclear Information System (INIS)

    2001-12-01

    This ITER CTA Newsletter contains information about the organization of the ITER Co-ordinated Technical Activities (CTA) International Team as the follow-up of the ITER CTA project board meeting in Toronto on 7 November 2001. It also includes a summary on the start of the international tokamak physics activity by Dr. D. Campbell, Chair of the ITPA Co-ordinating Committee

  5. ITER CTA newsletter. No. 9

    International Nuclear Information System (INIS)

    2002-06-01

    This ITER CTA newsletter contains information about the Fourth Negotiations Meeting on the Joint Implementation of ITER held in Cadarache, France on 4-6 June 2002 and about the meeting of the ITER CTA Project Board which took place on the occasion of the N4 Meeting at Cadarache on 3-4 June 2002

  6. ITER CTA newsletter. No. 1

    International Nuclear Information System (INIS)

    2001-01-01

    This ITER CTA newsletter comprises reports on ITER co-ordinated technical activities, information about the Meeting of the ITER CTA project board which took place in Vienna on 16 July 2001, and the Meeting of the expert group on MHD, disruptions and plasma control which was held on 25-26 June 2001 in Funchal, Madeira

  7. ITER CTA newsletter. No. 2

    International Nuclear Information System (INIS)

    2001-10-01

    This ITER CTA newsletter contains results of the ITER toroidal field model coil project presented by ITER EU Home Team (Garching) and an article in commemoration of the late Dr. Charles Maisonnier, one of the former leaders of ITER who made significant contributions to its development

  8. ITER CTA newsletter. No. 7

    International Nuclear Information System (INIS)

    2002-04-01

    This issue of ITER CTA newsletter contains information about the meeting of the ITER CTA project board, which took place in Moscow, Russian Federation on 22 April 2002 on the occasion of the Third Negotiators Meeting (N3), and about the meeting 'EU divertor celebration day' organized on 16 January 2002 at Plansee AG, Reutte, Austria

  9. ITER EDA newsletter. V. 5, no. 8

    International Nuclear Information System (INIS)

    1996-08-01

    This issue of the Newsletter on the Engineering Design Activities (EDA) for the ITER Tokamak project contains a report on the divertor remote handling development (and of a summer party at the ITER Joint Work Site in Garching, Germany)

  10. Nuclear Data Newsletter, No. 54, November 2012

    International Nuclear Information System (INIS)

    2012-11-01

    This issue of Nuclear Data Newsletter features Message from the Section Head; Nuclear Data Section IT resources; Computer codes and data libraries - News; NDS meeting reports; Selected charts, reports and documents; Coordinated research projects; Staff items and Forthcoming event.

  11. ITER EDA newsletter. V. 5, no. 8

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-08-01

    This issue of the Newsletter on the Engineering Design Activities (EDA) for the ITER Tokamak project contains a report on the divertor remote handling development (and of a summer party at the ITER Joint Work Site in Garching, Germany).

  12. ITER EDA newsletter. V. 7, no. 6

    International Nuclear Information System (INIS)

    1998-06-01

    This newsletter contains the articles: 'ITER representation at the 11th Pacific Basin Nuclear Conference', 'Summary of discussion points and further deliberations in the special committee on the ITER project in the Atomic Energy Commission', and 'ITER radio frequency systems'

  13. ITER EDA newsletter. V. 8, no. 7

    International Nuclear Information System (INIS)

    1999-07-01

    This newsletter contains an article concerning the ITER divertor cassette project meeting in Bologna, Italy (May 26-28, 1999), and an emotional outburst, concerning the closure of the ITER site in San Diego, USA

  14. Animal production and health newsletter. No. 32

    International Nuclear Information System (INIS)

    2000-06-01

    Project reviews and research coordination meetings on milk production, rinderpest diagnosis, animal vaccinations, quality assurance in veterinary diagnostic laboratories and evaluation of animal feeds are the major highlights of this issue of the Newsletter

  15. Thyroxine-induced metamorphosis in the axolotl (Ambystoma mexicanum).

    Science.gov (United States)

    Coots, Peggy S; Seifert, Ashley W

    2015-01-01

    The axolotl (Ambystoma mexicanum) has remained an important model for regeneration and developmental biology for over a century. Although axolotls in captive-bred colonies usually exist in an aquatic form, they retain the ability to undergo metamorphosis following exposure to thyroid hormone. Here we present a robust method for inducing metamorphosis in adult axolotls that results in high survivability and produces terrestrial animals that can be maintained in long-term captivity.

  16. New England Wind Forum: A Wind Powering America Project, Newsletter #5 -- January 2010, Wind and Hydropower Technologies Program (WHTP)

    Energy Technology Data Exchange (ETDEWEB)

    Grace, R. C.; Gifford, J.

    2010-01-01

    Wind Powering America program launched the New England Wind Forum (NEWF) in 2005 to provide a single comprehensive source of up-to-date, Web-based information on a broad array of wind energy issues pertaining to New England. The NEWF newsletter provides New England stakeholders with updates on wind energy development in the region. In addition to regional updates, Issue #5 offers an interview with Angus King, former governor of Maine and co-founder of Independence Wind.

  17. INDAG newsletter. No. 4

    International Nuclear Information System (INIS)

    2004-09-01

    INDAG, so far, has been the only IAEA group to publish its Newsletter regularly before each General Conference Meeting. It is no doubt mainly this motivation for communication with complete transparency, coupled with expert advice, that led the independent panel for the evaluation of IAEA's nuclear desalination activities to highly commend INDAG for its actions. This time, INDAG brings you some concrete results of the International cooperation activities, strongly supported by INDAG and carried out under the aegis of IAEA's INT/4/134 programme: Thus, the Kalpakkam nuclear desalination complex in India is nearly completed, the Pakistani project for desalination with the Karachi nuclear power plant is now well on the way. At the same time, two technical and economic feasibility studies of nuclear desalination have also been completed. The final report on the feasibility of SMART + MED based integrated desalination system for the Madura island in Indonesia (Collaboration between South Korea and Indonesia) has already been published. That from the French -Tunisian collaboration, known as the TUNDESAL project, would come out as this Newsletter reaches you. As INDAG has consistently tried to communicate, these two studies have independently concluded that nuclear desalination is indeed a viable option for the future. The CRP on the economic assessment of site-specific cases, launched after INDAG's recommendation, continues to move forward. It was indeed the revised new models in DEEP that permitted the comprehensive economic evaluation of desalination costs in the two international feasibility studies

  18. INDAG newsletter. No. 3

    International Nuclear Information System (INIS)

    2003-09-01

    This third issue of the Newsletter is characterised by the key words 'demonstration' and 'scientific maturity' as opposed to the 'winds of change' in the second issue. Nuclear desalination studies in the INDAG member countries have moved from the generic studies to site-specific (e.g. the CRP on economics) studies and now to demonstration projects. The demonstration project at KALPAKKAM (INDIA) is now going on at full speed. That of KANNUP (PAKISTAN) will begin soon. A Similar project for the MEDITERRANEAN region is currently under consideration in France. Similarly, in its latest call for proposals for its 6th Framework programme, the European Commission has launched an ambitious programme of research and technological development in the field of Management of scarce water resources and mitigation technologies. This programme specifically calls for research in desalination

  19. Limb Regeneration in Axolotl: Is It Superhealing?

    Directory of Open Access Journals (Sweden)

    Stéphane Roy

    2006-01-01

    Full Text Available The ability of axolotls to regenerate their limbs is almost legendary. In fact, urodeles such as the axolotl are the only vertebrates that can regenerate multiple structures like their limbs, jaws, tail, spinal cord, and skin (the list goes on throughout their lives. It is therefore surprising to realize, although we have known of their regenerative potential for over 200 years, how little we understand the mechanisms behind this achievement of adult tissue morphogenesis. Many observations can be drawn between regeneration and other disciplines such as development and wound healing. In this review, we present new developments in functional analysis that will help to address the role of specific genes during the process of regeneration. We also present an analysis of the resemblance between wound healing and regeneration, and discuss whether axolotls are superhealers. A better understanding of these animals' regenerative capacity could lead to major benefits by providing regenerative medicine with directions on how to develop therapeutic approaches leading to regeneration in humans.

  20. Transcriptional landscapes of Axolotl (Ambystoma mexicanum).

    Science.gov (United States)

    Caballero-Pérez, Juan; Espinal-Centeno, Annie; Falcon, Francisco; García-Ortega, Luis F; Curiel-Quesada, Everardo; Cruz-Hernández, Andrés; Bako, Laszlo; Chen, Xuemei; Martínez, Octavio; Alberto Arteaga-Vázquez, Mario; Herrera-Estrella, Luis; Cruz-Ramírez, Alfredo

    2018-01-15

    The axolotl (Ambystoma mexicanum) is the vertebrate model system with the highest regeneration capacity. Experimental tools established over the past 100 years have been fundamental to start unraveling the cellular and molecular basis of tissue and limb regeneration. In the absence of a reference genome for the Axolotl, transcriptomic analysis become fundamental to understand the genetic basis of regeneration. Here we present one of the most diverse transcriptomic data sets for Axolotl by profiling coding and non-coding RNAs from diverse tissues. We reconstructed a population of 115,906 putative protein coding mRNAs as full ORFs (including isoforms). We also identified 352 conserved miRNAs and 297 novel putative mature miRNAs. Systematic enrichment analysis of gene expression allowed us to identify tissue-specific protein-coding transcripts. We also found putative novel and conserved microRNAs which potentially target mRNAs which are reported as important disease candidates in heart and liver. Copyright © 2017 Elsevier Inc. All rights reserved.

  1. Wind Program Newsletter: October 2014 Edition (Newsletter)

    Energy Technology Data Exchange (ETDEWEB)

    2014-10-01

    The U.S. Department of Energy's Wind Program Newsletter, supported by the EERE Wind and Water Power Technologies office, highlights the Wind Program's key activities, events, and funding opportunities.

  2. SSDL newsletter. No. 49

    International Nuclear Information System (INIS)

    2004-05-01

    This issue of the SSDL Newsletter starts with a report of the first Research Co-ordination Meeting of the Co-ordinated Research Project (CRP) on the development of TLD-based quality audits for radiotherapy dosimetry in non-reference conditions. The meeting was held at the IAEA's Headquarters in Vienna during 30 September - 4 October 2002. The meeting gathered the CRP participants from Algeria, Argentina, Austria, Bulgaria, China, India, France and Poland. The second article is also a meeting's report on the development of quality assurance procedures for dosimetry calculations in radiotherapy. The meeting was held at the IAEA's Headquarters in Vienna during 13-18 October 2003. Three consultants from Austria, the Netherlands and the USA have attended the meeting and made specific recommendations to the Agency on the initiation of a CRP on Quality Assurance for dosimetry calculations in radiotherapy

  3. Nuclear data newsletter. No. 36

    International Nuclear Information System (INIS)

    2003-09-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and offline news concerning nuclear data libraries and data processing codes. It includes announcements on development activities of IAEA in the field of nuclear data collections and coordinated research projects and lists selected reports and documents on nuclear data as well as cooperating nuclear data service centres

  4. Nuclear data newsletter. No. 38

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-09-15

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and offline news concerning web and database services, nuclear data libraries and data processing codes. It includes announcements on development activities of IAEA in the field of nuclear data collections and coordinated research projects and lists selected reports and documents on nuclear data as well as cooperating nuclear data service centres.

  5. Nuclear data newsletter. No. 38

    International Nuclear Information System (INIS)

    2004-09-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and offline news concerning web and database services, nuclear data libraries and data processing codes. It includes announcements on development activities of IAEA in the field of nuclear data collections and coordinated research projects and lists selected reports and documents on nuclear data as well as cooperating nuclear data service centres

  6. Nuclear data newsletter. No. 37

    International Nuclear Information System (INIS)

    2004-04-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and offline news concerning nuclear data libraries and data processing codes. It includes announcements on development activities of IAEA in the field of nuclear data collections and coordinated research projects and lists selected reports and documents on nuclear data as well as cooperating nuclear data service centres

  7. Nuclear data newsletter. No. 39

    International Nuclear Information System (INIS)

    2005-05-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and offline news concerning nuclear data libraries and data processing codes. It includes announcements on development activities of IAEA in the field of nuclear data collections and coordinated research projects and lists selected reports and documents on nuclear data as well as cooperating nuclear data service centres

  8. Housing and maintenance of Ambystoma mexicanum, the Mexican axolotl.

    Science.gov (United States)

    Farkas, Johanna E; Monaghan, James R

    2015-01-01

    The aim of this paper is to assemble a significant amount of information on Ambystoma mexicanum, the axolotl salamander, to assist in the basic knowledge needed to raise, breed, and study most aspects of axolotl biology. It is important to understand the basic biology of the axolotl in order to make informed decisions on their proper care and use in experiments. Therefore, we will provide necessary information to the non-herpetologist that will assist in their study of this unique and fascinating animal. We also aim to provide a resource on the general anatomy, behavior, and experimental tips specific to the Mexican axolotl that will be of use to most axolotl laboratories. Axolotls have been actively researched since the 1860s, giving testament to their relatively straightforward maintenance and their versatility as an animal model for development and regeneration. Interest in using the axolotl in laboratory research has grown tremendously over the past decade, so dedicated resources to support the study of this species are needed and encouraged.

  9. International Neutron Radiography Newsletter

    DEFF Research Database (Denmark)

    Domanus, Joseph Czeslaw

    1986-01-01

    At the First World Conference on Neutron Radiography i t was decided to continue the "Neutron Radiography Newsletter", published previously by J.P. Barton, as the "International Neutron Radiography Newsletter" (INRNL), with J.C. Doraanus as editor. The British Journal of Non-Destructive Testing...

  10. ITER EDA newsletter. V. 9, no. 9

    International Nuclear Information System (INIS)

    2000-09-01

    This ITER EDA Newsletter contains the following 5 contributions: CSMC and CSIC charging tests successfully completed; The ITER divertor cassette project meeting; Blanket R and D and design task meeting; IAEA technical committee meeting on fusion safety; ITER L-6 large project ''blanket remote handling and maintenance''

  11. ITER EDA newsletter. V. 5, no. 9

    International Nuclear Information System (INIS)

    1996-09-01

    This issue of the Newsletter on the Engineering Design Activities (EDA) for the ITER project contains an overview of one of the seven large ITER Research and Development Projects identified by the ITER Director, namely the Vacuum Vessel Sector, as well as an account of computer animation created for ITER

  12. Soils newsletter. V. 22, no. 1

    International Nuclear Information System (INIS)

    1999-06-01

    This issue of the Newsletter highlights a number of coordinated research project meetings including isotope techniques in studies on management of organic matter and nutrient turnover, use of irradiated sewage sludge ti increase soil fertility, assessment of soil erosion. Status of existing co-ordinated and technical co-operation research projects is also summarized

  13. Soils newsletter. V. 15, no. 1

    International Nuclear Information System (INIS)

    1992-07-01

    The First Soils Newsletter of 1992 summarizes the status of the six coordinated research programs (CRPs) currently in progress and announces a new CRP on ''The Use of Nuclear and Related Techniques in the Evaluation of the Agronomic Effectiveness of Phosphate Fertilizers, in Particular Rock Phosphates''. The first Research Coordination Meeting on ''The Use of Nuclear and Related Techniques in Assessment of Irrigation Schedules of Field Crops to Increase Effective Use of Water in Irrigation Projects'', was held in Vienna in February 1992, and excerpts from the presented reports are also included in the Newsletter. In addition, there are brief summaries of the Technical Cooperation Projects in the Middle East and Europe region

  14. Food irradiation newsletter. V.18, no.1

    International Nuclear Information System (INIS)

    1994-04-01

    This newsletter contains a report on the 10th Annual Meeting of the International Consultative Group on Food Irradiations, summaries of the Second Research Co-ordination Meetings(RCMs) and Final RCM of the Asian Regional Co-operative Project on Food Irradiation with Emphasis on Process Control and Applications(RPFI-Pase III), the resolutions and considerations of food irradiation by the IAEA Board and summaries of the Regional Project for Research, Developing and Training on the Application of Nuclear Techniques to Food Preservation in the Near East. Reviews and order information for new publications and a listing of future meetings and workshops are located in the back of this newsletter

  15. SSDL Newsletter. No. 39

    International Nuclear Information System (INIS)

    1998-07-01

    This issue of the Newsletter opens with the note on ''x-ray calibration qualities''. The IAEA Technical Report Series No.374 ''Calibration of Dosimeters Used in Radiotherapy'' (IAEA, Vienna, 1994) is intended for hospitals and SSDLs that carry out calibration of therapy level dosimeters. The second article is a report from the First Research Co-ordination Meeting (RCM) for the Coordinated Research Projects on ''the Development of a Quality Assurance Programme for Radiation Therapy Dosimetry in Developing Countries'', held at the IAEA Headquarters from 6 to 10 October 1997. The third article is also a report from the Second Research Co-ordination Meeting (RCM) for the Co-ordinated Research Projects (CRP E2 40 06) on ''Characterization and Evaluation of High-Dose Dosimetry Techniques for Quality Assurance in Radiation Processing'' which was held at the IAEA Headquarters in Vienna, from 6 through 10 October 1997. This CRP investigates the influence of various external parameters on the performance of several routine dosimeters presently in use, and a possible transfer dosimetry system for electron beams of energy less than 4 MeV

  16. BIOMASS newsletter. No. 7

    International Nuclear Information System (INIS)

    Torres, Carlos

    1999-06-01

    The International Atomic Energy Agency Programme on Biosphere Modelling and Assessment (BIOMASS) Newsletter has been launched with general objectives of providing an international focal point in the area of biosphere assessment modelling, developing methods for analysis of radionuclide transfer in the biosphere for use in radiological assessment, improving modelling methods, and developing international consensus on biosphere modelling philosophies, approaches and parameter values. The main themes included in the Newsletter include radioactive waste disposal (reference biosphere), environmental releases and biosphere processes

  17. BIOMASS newsletter. No. 8

    International Nuclear Information System (INIS)

    Torres, Carlos

    2000-01-01

    The International Atomic Energy Agency Programme on Biosphere Modelling and Assessment (BIOMASS) Newsletter has been launched with general objectives of providing an international focal point in the area of biosphere assessment modelling, developing methods for analysis of radionuclide transfer in the biosphere for use in radiological assessment, improving modelling methods, and developing international consensus on biosphere modelling philosophies, approaches and parameter values. The main themes included in the Newsletter include radioactive waste disposal (reference biosphere), environmental releases and biosphere processes

  18. BIOMASS newsletter. No. 6

    International Nuclear Information System (INIS)

    Torres, Carlos

    1999-01-01

    The International Atomic Energy Agency Programme on Biosphere Modelling and Assessment (BIOMASS) Newsletter has been launched with general objectives of providing an international focal point in the area of biosphere assessment modelling, developing methods for analysis of radionuclide transfer in the biosphere for use in radiological assessment, improving modelling methods, and developing international consensus on biosphere modelling philosophies, approaches and parameter values. The main themes included in the Newsletter include radioactive waste disposal (reference biosphere), environmental releases and biosphere processes

  19. BIOMASS newsletter. No. 5

    International Nuclear Information System (INIS)

    Torres, Carlos

    1998-07-01

    The International Atomic Energy Agency Programme on Biosphere Modelling and Assessment (BIOMASS) Newsletter has been launched with general objectives of providing an international focal point in the area of biosphere assessment modelling, developing methods for analysis of radionuclide transfer in the biosphere for use in radiological assessment, improving modelling methods, and developing international consensus on biosphere modelling philosophies, approaches and parameter values. The main themes included in the Newsletter include radioactive waste disposal (reference biosphere), environmental releases and biosphere processes

  20. BIOMASS newsletter. No. 2

    International Nuclear Information System (INIS)

    Torres, Carlos

    1996-12-01

    The International Atomic Energy Agency Programme on Biosphere Modelling and Assessment (BIOMASS) Newsletter has been launched with general objectives of providing an international focal point in the area of biosphere assessment modelling, developing methods for analysis of radionuclide transfer in the biosphere for use in radiological assessment, improving modelling methods, and developing international consensus on biosphere modelling philosophies, approaches and parameter values. The main themes included in the Newsletter include radioactive waste disposal (reference biosphere), environmental releases and biosphere processes

  1. BIOMASS newsletter. No. 3

    International Nuclear Information System (INIS)

    Torres, Carlos

    1997-07-01

    The International Atomic Energy Agency Programme on Biosphere Modelling and Assessment (BIOMASS) Newsletter has been launched with general objectives of providing an international focal point in the area of biosphere assessment modelling, developing methods for analysis of radionuclide transfer in the biosphere for use in radiological assessment, improving modelling methods, and developing international consensus on biosphere modelling philosophies, approaches and parameter values. The main themes included in the Newsletter include radioactive waste disposal (reference biosphere), environmental releases and biosphere processes

  2. BIOMASS newsletter. No. 4

    International Nuclear Information System (INIS)

    Torres, Carlos

    1998-01-01

    The International Atomic Energy Agency Programme on Biosphere Modelling and Assessment (BIOMASS) Newsletter has been launched with general objectives of providing an international focal point in the area of biosphere assessment modelling, developing methods for analysis of radionuclide transfer in the biosphere for use in radiological assessment, improving modelling methods, and developing international consensus on biosphere modelling philosophies, approaches and parameter values. The main themes included in the Newsletter include radioactive waste disposal (reference biosphere), environmental releases and biosphere processes

  3. SSDL newsletter. No. 44

    International Nuclear Information System (INIS)

    2001-01-01

    The first article of this issue of the SSDL Newsletter is the report of the 9th SSDL Scientific Committee Meeting held from 13-17 November 2000. The editor wishes to draw the readers' attention to recommendations xviii, xxi and xxvi of the Scientific Committee, to evaluate the potential needs of SSDLs for the audit and calibration services in diagnostic radiology, brachytherapy and nuclear medicine metrology. For that purpose, the Secretariat of the IAEA/WHO network is preparing a survey form to be sent to all SSDLs of the network. It is hoped that the network members will fill in the questionnaire and return it to the Secretariat as soon as possible. The second article is a technical note prepared by the staff of the Dosimetry and Medical Radiation Physics Section that deals with the ''effect of humidity on measurements with a well type chamber''. Those SSDL members possessing a well type chamber are encouraged to conduct similar frequent constancy checks and submit their contributions to the editor for publication in a forthcoming issue of the Newsletter. Contributions will be duly acknowledged. The third article is a report of the Second Research Co-ordination Meeting (RCM) for the Co-ordinated Research Project (CRP E2.40.07) on ''the development of a quality assurance programme for radiation therapy dosimetry in developing countries'', held at IAEA Headquarters from 4-8 December 2000. The aim of the CRP is to establish national Quality Assurance (QA) networks for external quality audits for radiotherapy hospitals in developing countries. This is done by setting up national External Audit Groups (EAGs) with laboratory backup for operating TLD audits for radiotherapy dosimetry. The main results achieved under this CRP are included in the report. A new SSDL has recently joined our Network: the Laboratory of State Dosimetry Standards of the Belarussian State Institute of Metrology (Gosstandart). The SSDL has been added to the database of the IAEA/WHO Network of

  4. SSDL newsletter. No. 42

    International Nuclear Information System (INIS)

    2000-01-01

    Almost 25 years after its foundation, the IAEA/WHO Network of SSDLs comprises 70 members in 59 Member States and is supported by 15 Primary Standards Dosimetry Laboratories and 5 international bodies and committees. The close link between the Network and other metrology bodies has contributed substantially to achieving consistency in the dosimetry of ionizing radiation. The first article of this issue of the SSDL Newsletter is devoted to the story of SSDL under the title 'the SSDL story' so that the 'SSDL memory' becomes recorded. The second article is a report of the Third Research Co-ordination Meeting (RCM) for the Coordinated Research Project (CRP E2.10.02) on 'the development of a quality assurance programme for SSDLs', held at the IAEA Headquarters from 29 November to 3 December 1999. The objective of the CRP is to prepare practical guidelines to SSDLs for the development of a quality system based on ISO/IEC standards. The main results achieved under this CRP are included in this report and will be published in the form of an IAEA document to be distributed to all SSDL members. The third article is a report from the SSDL in Tanzania, which describes the quality control programme implemented in the laboratory

  5. INDAG newsletter. No. 2

    International Nuclear Information System (INIS)

    2002-09-01

    This second issue, you cannot fail to notice the winds of change: changes in the individual programmes of the Member States are now progressively moving from paper studies to realistic site specific investigations; changes in the very orientation of INDAG, in which the accent is now more and more on technical issues and discussions; and changes in the Newsletter itself - in this issue you have not one but three technical notes (see the insert: INDAG Technical Brief), summarising the presentations made during the last INDAG Meeting held from 10 to 12 July, 2002. Reflecting these changes, INDAG has recommended the organisation of Technical Meetings to take place in alternate years between INDAG meetings. Yet another domain where noticeable changes are apparent is the area of International collaborations, which have become realities from just ideas. The EURODESAL project is well underway. This is also the case for the collaboration between South Korea and Indonesia, between France and Tunisia and between France and Morocco, all three dealing with site-specific studies with a view to furnish technical and economic specifications for eventual, integrated nuclear desalination plants. The collaboration between Russia and Canada on a floating nuclear desalination facility continues at an advanced stage

  6. INDAG newsletter. No. 1

    International Nuclear Information System (INIS)

    2001-09-01

    The International Nuclear Desalination Advisory Group, INDAG, was created following the 1996 General Conference Resolution (GC(40)/RES/14) requesting the IAEA to take the appropriate measures to assist Member States in the process of preparatory actions for nuclear desalination demonstration projects. This resolution was reiterated in the following IAEA General Conferences and INDAG is now in its second term, ending in 2004. From its very beginning, INDAG has actively contributed to the promotion and stimulation of nuclear desalination activities in IAEA Member States. Its achievements are numerous but they are perhaps relatively less well known to people outside IAEA and related organisations. INDAG, through its meetings, has provided common methodology, computer tools and activities which have encouraged other Member States to engage in nuclear desalination activities in a more coherent manner. Similarly, under INDAG recommendations and suggestions, IAEA has already implemented important activities for the promotion of the cause for nuclear desalination in the world launching of the Coordinated Research Program on 'Optimisation of the coupling of nuclear reactors and desalination systems' (1998-2003). This first issue of the Newsletter prepared by INDAG members brings not only a report of INDAG activities but presents the latest innovations and advances taking place in Member States in the field of nuclear desalination

  7. ITER EDA Newsletter. V. 4, no. 5

    International Nuclear Information System (INIS)

    1995-05-01

    This issue of the ITER EDA (Engineering Design Activities) Newsletter contains comments on the ITER project by the Permanent Representative of the Russian Federation to the International Organizations in Vienna; a report on the ITER Magnet Technical Meeting held at the Joint Work Site at Naka, Japan, April 19-21, 1995; and a contribution entitled ''ITER spouses cross the cultures''

  8. TASCC newsletter volume 8 no. 5

    Energy Technology Data Exchange (ETDEWEB)

    Thomson, L

    1994-05-01

    A newsletter produced by Chalk River`s Tandem Accelerator Superconducting Cyclotron Facility. Included in this May issue of TASCC is an update of the facility, a visit by the Nuclear Physics Technical Review Committee, sizing of meteors, Deep River Science Academy on TASCC projects and a listing of May`s experiments. 2 figs.

  9. TASCC newsletter volume 8 no. 5

    International Nuclear Information System (INIS)

    Thomson, L.

    1994-05-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this May issue of TASCC is an update of the facility, a visit by the Nuclear Physics Technical Review Committee, sizing of meteors, Deep River Science Academy on TASCC projects and a listing of May's experiments. 2 figs

  10. ITER ITA newsletter. No. 21, April 2005

    International Nuclear Information System (INIS)

    2005-05-01

    This issue of ITER ITA (ITER transitional Arrangements) newsletter contains concise information about Russian federation Participant Team's activity in the area of preparation for ITER construction and information about International Fusion materials irradiation Facility(IRMIF) project and prospects for implementation

  11. ITER EDA newsletter. V. 6, no. 2

    International Nuclear Information System (INIS)

    1997-02-01

    This issue of the ITER EDA (Engineering Design Activities) Newsletter reports on the ITER divertor development project and its objectives; contains a report on the 16th Energy IAEA Fusion Conference (ITER and other Tokamak Issues) held in Montreal, Canada; 287 papers were selected by the Programme Committee for presentation and 178 posters were presented. 3 figs

  12. ITER ITA newsletter. No. 6, July 2003

    International Nuclear Information System (INIS)

    2003-09-01

    This issue of ITER ITA (ITER transitional Arrangements) newsletter contains concise information about ITER related activities. One of them was the farewell party for for Annick Lyraud and Robert Aymar, who will take up his position as Director-General of CERN in January 2004, another is information about Dr. Yasuo Shimomura, ITER interim project leader, and ITER technical work during the transitional arrangements

  13. Animal production and health newsletter. No. 30

    International Nuclear Information System (INIS)

    1999-06-01

    This issue of the Newsletter highlights forthcoming events including regional workshops, research coordination meetings and training courses on use isotope application in the diagnosis of animal diseases. Status of existing co-ordinated and technical co-operation research projects is also summarized

  14. CERN Diversity Newsletter - March 2016

    CERN Document Server

    Kaltenhauser, Kristin; CERN. Geneva. HR Department

    2016-01-01

    Quarterly CERN Diversity Newsletter, informing on recent and ongoing diversity activities, and interesting reads, videos and other links related to diversity. Subscribe here: https://diversity.web.cern.ch/2015/07/subscribe-diversity-newsletter

  15. CERN Diversity Newsletter - April 2017

    CERN Document Server

    AUTHOR|(CDS)2069427; Koutava, Ioanna; CERN. Geneva. HR Department

    2017-01-01

    The CERN Diversity Newsletter, informing on recent and ongoing diversity activities, and interesting reads, videos and other links related to diversity. Subscribe here: https://diversity.web.cern.ch/2015/07/subscribe-diversity-newsletter

  16. CERN Diversity Newsletter - November 2015

    CERN Document Server

    Kaltenhauser, Kristin; CERN. Geneva. HR Department

    2015-01-01

    Quarterly CERN Diversity Newsletter, informing on recent and ongoing diversity activities, and interesting reads, videos and other links related to diversity. Subscribe here: https://diversity.web.cern.ch/2015/07/subscribe-diversity-newsletter

  17. CERN Diversity Newsletter - September 2016

    CERN Document Server

    Guinot, Genevieve

    2016-01-01

    Quarterly CERN Diversity Newsletter, informing on recent and ongoing diversity activities, and interesting reads, videos and other links related to diversity. Subscribe here: https://diversity.web.cern.ch/2015/07/subscribe-diversity-newsletter

  18. Lens regeneration in axolotl: new evidence of developmental plasticity

    Directory of Open Access Journals (Sweden)

    Suetsugu-Maki Rinako

    2012-12-01

    Full Text Available Abstract Background Among vertebrates lens regeneration is most pronounced in newts, which have the ability to regenerate the entire lens throughout their lives. Regeneration occurs from the dorsal iris by transdifferentiation of the pigment epithelial cells. Interestingly, the ventral iris never contributes to regeneration. Frogs have limited lens regeneration capacity elicited from the cornea during pre-metamorphic stages. The axolotl is another salamander which, like the newt, regenerates its limbs or its tail with the spinal cord, but up until now all reports have shown that it does not regenerate the lens. Results Here we present a detailed analysis during different stages of axolotl development, and we show that despite previous beliefs the axolotl does regenerate the lens, however, only during a limited time after hatching. We have found that starting at stage 44 (forelimb bud stage lens regeneration is possible for nearly two weeks. Regeneration occurs from the iris but, in contrast to the newt, regeneration can be elicited from either the dorsal or the ventral iris and, occasionally, even from both in the same eye. Similar studies in the zebra fish concluded that lens regeneration is not possible. Conclusions Regeneration of the lens is possible in the axolotl, but differs from both frogs and newts. Thus the axolotl iris provides a novel and more plastic strategy for lens regeneration.

  19. Novel axolotl cardiac function analysis method using magnetic resonance imaging.

    Directory of Open Access Journals (Sweden)

    Pedro Gomes Sanches

    Full Text Available The salamander axolotl is capable of complete regeneration of amputated heart tissue. However, non-invasive imaging tools for assessing its cardiac function were so far not employed. In this study, cardiac magnetic resonance imaging is introduced as a non-invasive technique to image heart function of axolotls. Three axolotls were imaged with magnetic resonance imaging using a retrospectively gated Fast Low Angle Shot cine sequence. Within one scanning session the axolotl heart was imaged three times in all planes, consecutively. Heart rate, ejection fraction, stroke volume and cardiac output were calculated using three techniques: (1 combined long-axis, (2 short-axis series, and (3 ultrasound (control for heart rate only. All values are presented as mean ± standard deviation. Heart rate (beats per minute among different animals was 32.2±6.0 (long axis, 30.4±5.5 (short axis and 32.7±4.9 (ultrasound and statistically similar regardless of the imaging method (p > 0.05. Ejection fraction (% was 59.6±10.8 (long axis and 48.1±11.3 (short axis and it differed significantly (p = 0.019. Stroke volume (μl/beat was 133.7±33.7 (long axis and 93.2±31.2 (short axis, also differed significantly (p = 0.015. Calculations were consistent among the animals and over three repeated measurements. The heart rate varied depending on depth of anaesthesia. We described a new method for defining and imaging the anatomical planes of the axolotl heart and propose one of our techniques (long axis analysis may prove useful in defining cardiac function in regenerating axolotl hearts.

  20. Animal production and health newsletter. No. 33

    International Nuclear Information System (INIS)

    2000-12-01

    A full report on the final research coordination meeting on the long running Coordinated Research Project supporting rinderpest eradication is contained in this Newsletter. It is reported that all the national rinderpest vaccination campaigns have been terminated and except for a very few isolated areas where vaccination continues, the effort is now on disease surveillance to demonstrate freedom from rinderpest. Other research coordination meetings on animal diseases and productivity as well as new projects are highlighted in this issue

  1. ITER EDA Newsletter. V. 6, no. 5

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-05-01

    This issue of the newsletter on Engineering Design Activities (EDA) for the ITER Tokamak project contains a report on Second International Industries` Liaison meeting which was held in Tokyo on 2-4 April 1997 (by Y. Kaneki, JAIF, Japan); an overview report on the Blanket project (by A. Cardella, I.Ioki (ITER Central Team), W. Daenner (EU Home Team)); and a progress report on microwave reflectometry (by J. Sanchez, Madrid, Spain).

  2. ITER EDA Newsletter. V. 6, no. 5

    International Nuclear Information System (INIS)

    1997-05-01

    This issue of the newsletter on Engineering Design Activities (EDA) for the ITER Tokamak project contains a report on Second International Industries' Liaison meeting which was held in Tokyo on 2-4 April 1997 (by Y. Kaneki, JAIF, Japan); an overview report on the Blanket project (by A. Cardella, I.Ioki (ITER Central Team), W. Daenner (EU Home Team)); and a progress report on microwave reflectometry (by J. Sanchez, Madrid, Spain)

  3. Plant breeding and genetics newsletter. No. 4

    International Nuclear Information System (INIS)

    1999-12-01

    The Newsletter reports development of new Coordinated Research Projects (CRPs) and on efficient implementation of Technical Coperaton Projects related to regional activities. Following the organization of the CRP on 'Molecular characterization of mutated genes controlling important traits for seed crop improvement' the CRP on 'Mutational analysis of root characters in annual food plants related to plant performance' was also established with the participation of 21 institutes. It also presents recent training activities and meetings undertaken

  4. Animal production and health newsletter. No. 33

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-12-01

    A full report on the final research coordination meeting on the long running Coordinated Research Project supporting rinderpest eradication is contained in this Newsletter. It is reported that all the national rinderpest vaccination campaigns have been terminated and except for a very few isolated areas where vaccination continues, the effort is now on disease surveillance to demonstrate freedom from rinderpest. Other research coordination meetings on animal diseases and productivity as well as new projects are highlighted in this issue.

  5. Early regulation of axolotl limb regeneration.

    Science.gov (United States)

    Makanae, Aki; Satoh, Akira

    2012-10-01

    Amphibian limb regeneration has been studied for a long time. In amphibian limb regeneration, an undifferentiated blastema is formed around the region damaged by amputation. The induction process of blastema formation has remained largely unknown because it is difficult to study the induction of limb regeneration. The recently developed accessory limb model (ALM) allows the investigation of limb induction and reveals early events of amphibian limb regeneration. The interaction between nerves and wound epidermis/epithelium is an important aspect of limb regeneration. During early limb regeneration, neurotrophic factors act on wound epithelium, leading to development of a functional epidermis/epithelium called the apical epithelial cap (AEC). AEC and nerves create a specific environment that inhibits wound healing and induces regeneration through blastema formation. It is suggested that FGF-signaling and MMP activities participate in creating a regenerative environment. To understand why urodele amphibians can create such a regenerative environment and humans cannot, it is necessary to identify the similarities and differences between regenerative and nonregenerative animals. Here we focus on ALM to consider limb regeneration from a new perspective and we also reported that focal adhesion kinase (FAK)-Src signaling controlled fibroblasts migration in axolotl limb regeneration. Copyright © 2012 Wiley Periodicals, Inc.

  6. Resegmentation in the Mexican axolotl, Ambystoma mexicanum.

    Science.gov (United States)

    Piekarski, Nadine; Olsson, Lennart

    2014-02-01

    The segmental series of somites in the vertebrate embryo gives rise to the axial skeleton. In amniote models, single vertebrae are derived from the sclerotome of two adjacent somites. This process, known as resegmentation, is well-studied using the quail-chick chimeric system, but the presumed generality of resegmentation across vertebrates remains poorly evaluated. Resegmentation has been questioned in anamniotes, given that the sclerotome is much smaller and lacks obvious differentiation between cranial and caudal portions. Here, we provide the first experimental evidence that resegmentation does occur in a species of amphibian. Fate mapping of individual somites in the Mexican axolotl (Ambystoma mexicanum) revealed that individual vertebrae receive cells from two adjacent somites as in the chicken. These findings suggest that large size and segmentation of the sclerotome into distinct cranial and caudal portions are not requirements for resegmentation. Our results, in addition to those for zebrafish, indicate that resegmentation is a general process in building the vertebral column in vertebrates, although it may be achieved in different ways in different groups. Copyright © 2013 Wiley Periodicals, Inc.

  7. Powernext newsletter no.39

    International Nuclear Information System (INIS)

    Conil-Lacoste, J.F.

    2006-07-01

    This newsletter no 39 of Powernext provides statistical data on Powernext day-Ahead from june 2005 to june 2006, prices and volume of Powernext Futures from june 2004 to june 2006, powernext carbon from june 2005 to june 2006 and some news on Powernext. (A.L.B.)

  8. SSDL Newsletter. No. 31

    International Nuclear Information System (INIS)

    1992-12-01

    This newsletter contains a report of the Fifth Meeting of the SSDL Scientific Committee, held in Vienna in November 1992. Also included are two articles about a quality assurance network for radiotherapy dosimetry, a report on IAEA activities on high-dose measurements and a Status Report on Technical Report Series No. 277. These items have been indexed separately. Refs, figs and tabs

  9. ISAM newsletter. No. 4

    International Nuclear Information System (INIS)

    Torres, Carlos

    1999-04-01

    This newsletter summarises the progress made by its three Working Groups (Scenario Generation and Justification; Modelling and Data; and Confidence Building), three Safety Case Groups (Vault; Radon-type facility; and Borehole Safety Case Groups) and ISAM Virtual Workspace Group during the second RCM along with plans for future work. The document also provides a list of currently available ISAM documents

  10. SSDL newsletter. No. 27

    International Nuclear Information System (INIS)

    1988-12-01

    This issue of the newsletter presents a report of the third meeting of the SSDL Scientific Committee. Articles on ''Absorbed dose determination in photon and electron beams'' and ''Comparison of absorbed dose determinations using the IAEA dosimetry protocol and the ferrous sulphate dosimeter'' are the major topics covered

  11. SSDL newsletter. No. 33

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-07-01

    The newsletter presents report of the sixth meeting of the SSDL Scientific Committee held in Vienna in March 1995. Major issues discussed include programmes and activities of the Dosimetry Section, statistical data on the SSDL network and IAEA activities on high-dose measurements. It also present uncertainty of the calibration factor.

  12. SSDL newsletter. No. 33

    International Nuclear Information System (INIS)

    1995-07-01

    The newsletter presents report of the sixth meeting of the SSDL Scientific Committee held in Vienna in March 1995. Major issues discussed include programmes and activities of the Dosimetry Section, statistical data on the SSDL network and IAEA activities on high-dose measurements. It also present uncertainty of the calibration factor

  13. ITER EDA Newsletter. Vol. 1, No. 1

    International Nuclear Information System (INIS)

    1992-11-01

    After the ITER Engineering Design Activities (EDA) Agreement and Protocol 1 had been signed by the four ITER parties on July 21, 1992 and had entered into force, the ITER Council suggested at its first meeting (Vienna, September 10-11, 1992) that the publication of the ITER Newsletter be continued during the EDA with assistance of the International Atomic Energy Agency. This suggestion was supported by the Agency and subsequently the ITER office in Vienna assumed its responsibilities for planning and executing activities related to the publication of the Newsletter. The ITER EDA Newsletter is planned to be a monthly publication aimed at disseminating broad information and understanding, including the description of the personal and institutional involvements in the ITER project in addition to technical facts about it. The responsibility for the Newsletter rests with the ITER council. In this first issue the signing of the ITER EDA Activities and Protocol 1 is reported. The EDA organizational structure is described. This issue also reports on the first ITER EDA council meeting, the opening of the ITER EDA NAKA Co-Centre, the first meeting of the ITER Technical Advisory Committee, activities of special working groups, an ITER Technical Meeting, as well as ''News in Brief'' and ''Coming Events''

  14. Continuous growth of the motor system in the axolotl

    International Nuclear Information System (INIS)

    Holder, N.; Clarke, J.D.; Stephens, N.; Wilson, S.W.; Orsi, C.; Bloomer, T.; Tonge, D.A.

    1991-01-01

    During growth of the axolotl, motor neurons, and muscle fibres are added to the motor system. By double labelling neurons with tritiated thymidine and retrogradely transported HRP, we show that some motor neurons are born at postembryonic stages. Further analysis of motor neurons with the aid of HRP reveals this population of newly born cells relatively frequently in small (5-7 cm long) axolotls, but only rarely in large (7-13 cm long) axolotls. Evidence is presented that suggests that these immature cells are in the process of migrating from close to the ependyma out to the ventral horn. HRP transport also reveals growth cones of advancing axons within spinal nerves in animals up to 6 cm in length. Cell counts by light and electron microscopic methods show that muscle fibres are generated throughout larval life in the iliotibialis, a typical limb muscle. This analysis provides data consistent with the notion that new muscle fibres are added from a localised growth zone situated at the superficial edge of the muscle. These results are discussed in terms of the correlation between continuous growth of the motor system and the ability of the axolotl to functionally repair lesions to the peripheral nervous system

  15. Novel axolotl cardiac function analysis method using magnetic resonance imaging

    NARCIS (Netherlands)

    Sanches, Pedro Gomes; Op 't Veld, Roel C.; de Graaf, Wolter; Strijkers, Gustav J.; Grüll, Holger

    2017-01-01

    The salamander axolotl is capable of complete regeneration of amputated heart tissue. However, non-invasive imaging tools for assessing its cardiac function were so far not employed. In this study, cardiac magnetic resonance imaging is introduced as a non-invasive technique to image heart function

  16. Novel axolotl cardiac function analysis method using magnetic resonance imaging

    NARCIS (Netherlands)

    Sanches, P.G.; Op ‘t Veld, R.C.; de Graaf, W.; Strijkers, G.J.; Grüll, H.

    2017-01-01

    The salamander axolotl is capable of complete regeneration of amputated heart tissue. However, non-invasive imaging tools for assessing its cardiac function were so far not employed. In this study, cardiac magnetic resonance imaging is introduced as a noninvasive technique to image heart function of

  17. The CERN & Society programme launches its newsletter

    CERN Multimedia

    Matteo Castoldi

    2016-01-01

    The newsletter will be issued quarterly. Sign up to remain informed about the latest initiatives of the CERN & Society programme!    The CERN & Society programme encompasses projects in the areas of education and outreach, innovation and knowledge exchange, and culture and creativity that spread the CERN spirit of scientific curiosity for the inspiration and benefit of society. The programme is funded primarily by the CERN & Society Foundation, a charitable foundation established by CERN and supported by individuals, trusts, organisations and commercial companies. The projects are inspired or enabled by CERN but lie outside of the Laboratory’s specific research mandate. We especially want to help young talent from around the world to flourish in the future. The programme is now launching its newsletter, which will be issued quarterly. Everybody who wants to be informed about CERN & Society’s activities, stay up-to-date with its latest in...

  18. Animal production and health newsletter. No. 40

    International Nuclear Information System (INIS)

    2004-06-01

    This issue of the Newsletter highlights the activities of the Animal Production and Health Section and the Sub-programme. Apart from the regular Coordinated Research Project (CRP) activities and the customary technical support given to national and regional Technical Cooperation (TC) projects, the personnel were involved in the technical evaluation of applications for new TC projects by Member States for the 2005/2006 biennial project cycle. The Section also was also occupied with preparing the IAEA's 2006/2007 Work and Budget Programme

  19. ITER CTA newsletter. No. 15, December 2002

    International Nuclear Information System (INIS)

    2003-03-01

    This ITER CTA newsletter issue contains brief information about several meetings related to ITER. One of them is the seventh ITER Negotiations Meetings that took place in Barcelona, Spain on 9-10 December 2002, another is the final ITER CTA Project Board Meeting, which took place in Barcelona, Spain on 8 December 2002 and the last one is the Third Meeting of the International Tokamak Physics Activity (ITPA) Topical Group on diagnostics held in Toki, Japan on 18-21 September 2002

  20. ITER EDA newsletter. V. 5, no. 10

    International Nuclear Information System (INIS)

    1996-10-01

    This issue of the newsletter on the Engineering Design Activities (EDA) for the ITER Tokamak project contains a report on the Fifth ITER Technical Meeting on Safety, Environment, and Regulatory Approval, held September 29 - October 7, 1996 at the ITER San Diego Joint Work Site; and a report on the Fifth ITER Diagnostics Expert Group Workshop and Technical Meeting on Diagnostics held in Montreal, Canada, 12-13 October 1996

  1. Nuclear data newsletter. No. 41, May 2006

    International Nuclear Information System (INIS)

    2006-05-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and offline news concerning nuclear data libraries and data processing codes. It includes announcements on development activities of IAEA in the field of nuclear data collections and coordinated research projects and lists selected reports and documents on nuclear data as well as cooperating nuclear data service centres

  2. Nuclear data newsletter. No. 40, September 2005

    International Nuclear Information System (INIS)

    2005-09-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and offline news concerning nuclear data libraries and data processing codes. It includes announcements on development activities of IAEA in the field of nuclear data collections and coordinated research projects and lists selected reports and documents on nuclear data as well as cooperating nuclear data service centres

  3. Nuclear data newsletter, No. 45, May 2008

    International Nuclear Information System (INIS)

    2008-05-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and database news concerning nuclear data libraries, computer codes and coordinated research projects and lists selected charts, reports and documents on nuclear data. Further it contains meeting reports of the Second Research Coordination Meeting (RCM) on Reference Database for Neutron Activation Analysis, 7?9 May 2007, IAEA Vienna

  4. ITER CTA newsletter. No. 13, October 2002

    International Nuclear Information System (INIS)

    2002-11-01

    This ITER CTA newsletter issue comprises concise information about an ITER related meeting concerning the joint implementation of ITER - the fifth ITER Negotiations Meeting - which was held in Toronto, Canada, 19-20 September, 2002, and information about assessment of the possible ITER site in Clarington, Ontario, Canada, which was the subject of the first official stage of the Joint Assessment of Specific Sites (JASS) for the ITER Project. This assessment was completed just before the Fifth ITER Negotiations Meeting

  5. Plant breeding and genetics newsletter. No. 3

    International Nuclear Information System (INIS)

    1999-06-01

    This third issue of the Plant Breeding and Genetics Newsletter highlights forthcoming events including regional (Afra) training course on 'molecular characterization of genetic biodiversity in traditional and neglected crops selected for improvement through mutation techniques' and seminar on 'mutation techniques and biotechnology for tropical and subtropical plant improvement in Asia and Pacific regions'. Status of existing co-ordinated and technical co-operation research projects is also summarized

  6. Nuclear data newsletter. No. 43, May 2007

    International Nuclear Information System (INIS)

    2007-05-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online news concerning nuclear data libraries and data processing codes. It includes announcements on development activities of IAEA in the field of nuclear data collections and coordinated research projects and lists selected reports and documents on nuclear data as well as cooperating nuclear data service centres. Further it contains meeting reports of selected technical meetings

  7. ITER EDA newsletter. V. 5, no. 7

    International Nuclear Information System (INIS)

    1996-07-01

    This issue of the Newsletter on the Engineering Design Activities (EDA) for the ITER Tokamak project contains a report on the Tenth ITER Council Meeting, held July 24-25, 1996, in St. Petersburg, Russia; a description of the Status of the ITER EDA by the ITER Director, Dr. R. Aymar; and a report on the so-called Task Number One by the ITER Special Working Group (Basis for the Start of Explorations, presenting possible scenarios toward siting, licensing and host support)

  8. Animal Production and Health Newsletter. No. 15

    International Nuclear Information System (INIS)

    1991-12-01

    This newsletter contains brief reviews of the meetings held between September and November, 1991, and a list of the nine co-ordinated research projects (CRPs) organized by the Animal Production and Health Section of the Joint FAO/IAEA Division is given. A tenth CRP, focussing on the development of supplementation strategies for milk-producing animals in tropical and subtropical environments, is currently being planned. Developments at the Animal Production Unit of the IAEA Laboratory, Seibersdorf are detailed

  9. Mutation breeding newsletter. No. 43

    International Nuclear Information System (INIS)

    1997-10-01

    This issue of the Newsletter includes articles dealing with radiation induced mutation based plant breeding research findings aimed at improving productivity, disease resistance and tolerance of stress conditions

  10. Uranium Newsletter. No. 1

    International Nuclear Information System (INIS)

    1987-03-01

    The new Uranium Newsletter is presented as an IAEA annual newsletter. The organization of the IAEA and its involvement with uranium since its founding in 1957 is described. The ''Red Book'' (Uranium Resources, Production and Demand) is mentioned. The Technical Assistance Programme of the IAEA in this field is also briefly mentioned. The contents also include information on the following meetings: The Technical Committee Meeting on Uranium Deposits in Magmatic and Metamorphic Rocks, Advisory Group Meeting on the Use of Airborne Radiometric Data, and the Technical Committee Meeting on Metallogenesis. Recent publications are listed. Current research contracts in uranium exploration are mentioned. IAEA publications on uranium (in press) are listed also. Country reports from the following countries are included: Australia, Brazil, Canada, China (People's Republic of), Denmark, Finland, Germany (Federal Republic of), Malaysia, Philippines, Portugal, South Africa (Republic of), Spain, Syrian Arab Republic, United Kingdom, United States of America, Zambia, and Greece. There is also a report from the Commission of European Communities

  11. Antarctic Meteorite Newsletter

    Science.gov (United States)

    Lindstrom, Marilyn

    2000-01-01

    This newsletter contains something for everyone! It lists classifications of about 440 meteorites mostly from the 1997 and 1998 ANSMET (Antarctic Search for Meteorites) seasons. It also gives descriptions of about 45 meteorites of special petrologic type. These include 1 iron, 17 chondrites (7 CC, 1 EC, 9 OC) and 27 achondrites (25 HED, UR). Most notable are an acapoloite (GRA98028) and an olivine diogenite (GRA98108).

  12. SSDL Newsletter. No. 34

    International Nuclear Information System (INIS)

    1995-12-01

    This issue of the SSDL newsletter contains recommendations on the use and dissemination of SSDLs of N D,W factors; these should not be transferred to hospital ionization chambers or used by SSDLs for calibration of therapy beams until a new code of Practice, replacing TRS-277, becomes available. Description of the on-going and planned activities of the IAEA Dosimetry Section is also presented. Refs, figs, tabs

  13. Powernext newsletter n. 27

    International Nuclear Information System (INIS)

    2005-02-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange market. This issue of Powernext newsletter presents the highlights of the European power trade markets during January, February and March 2005. It reports on some daily market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts, and on Powernext Futures TM in the case of medium-term contracts. (J.S.)

  14. Powernext newsletter n. 28

    International Nuclear Information System (INIS)

    2005-04-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange market. This issue of Powernext newsletter presents the highlights of the European power trade markets during February, March and April 2005. It reports on some daily market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts, and on Powernext Futures TM in the case of medium-term contracts. (J.S.)

  15. XRF newsletter. No. 1

    International Nuclear Information System (INIS)

    2000-12-01

    This periodical XRF Newsletter is to inform the XRF laboratories in IAEA Member States on recent developments in the field of XRF spectrometry and to exchange views on fundamental and applied aspects of sampling, sample preparation, instrumentation, quantitation, quality control, etc. It presents the XRF activities and the main XRF results obtained at the IAEA's model XRF Laboratory in Seibersdorf and in XRF laboratories in the Member States. This Newsletter will include input from the Member States and will help the XRF laboratories to improve their analytical performance, extend the applicability range of XRF techniques and initiate co-operation. It will be distributed to current and potential end-users of the analytical services of XRF laboratories and will further promote the utilisation of this technique in environmental pollution monitoring, mineral exploration, archaeometry and industry. The first issue of the Newsletter provides the XRF laboratories with a description of the facilities, the activities and selected results obtained at the IAEA XRF Laboratory in Seibersdorf, Austria

  16. CERN Diversity Newsletter - July 2015

    CERN Document Server

    Kaltenhauser, Kristin; CERN. Geneva. HR Department

    2015-01-01

    The first official edition of the CERN Diversity Newsletter, informing on recent and ongoing diversity activities, and interesting reads, videos and other links related to diversity. Subscribe here: https://diversity.web.cern.ch/2015/07/subscribe-diversity-newsletter

  17. ISOLATION AND CHARACTERIZATION OF AXOLOTL NPDC-1 AND ITS EFFECTS ON RETINOIC ACID RECEPTOR SIGNALING

    Science.gov (United States)

    Theodosiou, Maria; Monaghan, James R; Spencer, Michael L; Voss, S Randal; Noonan, Daniel J

    2009-01-01

    Retinoic acid, a key morphogen in early vertebrate development and tissue regeneration, mediates its effects through the binding of receptors that act as ligand-induced transcription factors. These binding events function to recruit an array of transcription co-regulatory proteins to specific gene promoters. One such co-regulatory protein, neuronal proliferation and differentiation control-1 (NPDC-1), is broadly expressed during mammalian development and functions as an in vitro repressor of retinoic acid receptor (RAR)-mediated transcription. To obtain comparative and developmental insights about NPDC-1 function, we cloned the axolotl (Ambystoma mexicanum) orthologue and measured transcript abundances among tissues sampled during the embryonic and juvenile phases of development, and also during spinal cord regeneration. Structurally, the axolotl orthologue of NPDC-1 retained sequence identity to mammalian sequences in all functional domains. Functionally, we observed that axolotl NPDC-1 mRNA expression peaked late in embryogenesis, with highest levels of expression occurring during the time of limb development, a process regulated by retinoic acid signaling. Also similar to what has been observed in mammals, axolotl NPDC-1 directly interacts with axolotl RAR, modulates axolotl RAR DNA binding, and represses cell proliferation and axolotl RAR-mediated gene transcription. These data justify axolotl as a model to further investigate NPDC-1 and its role in regulating retinoic acid signaling. PMID:17331771

  18. Identification of reference genes and validation for gene expression studies in diverse axolotl (Ambystoma mexicanum) tissues.

    Science.gov (United States)

    Guelke, Eileen; Bucan, Vesna; Liebsch, Christina; Lazaridis, Andrea; Radtke, Christine; Vogt, Peter M; Reimers, Kerstin

    2015-04-10

    For the precise quantitative RT-PCR normalization a set of valid reference genes is obligatory. Moreover have to be taken into concern the experimental conditions as they bias the regulation of reference genes. Up till now, no reference targets have been described for the axolotl (Ambystoma mexicanum). In a search in the public database SalSite for genetic information of the axolotl we identified fourteen presumptive reference genes, eleven of which were further tested for their gene expression stability. This study characterizes the expressional patterns of 11 putative endogenous control genes during axolotl limb regeneration and in an axolotl tissue panel. All 11 reference genes showed variable expression. Strikingly, ACTB was to be found most stable expressed in all comparative tissue groups, so we reason it to be suitable for all different kinds of axolotl tissue-type investigations. Moreover do we suggest GAPDH and RPLP0 as suitable for certain axolotl tissue analysis. When it comes to axolotl limb regeneration, a validated pair of reference genes is ODC and RPLP0. With these findings, new insights into axolotl gene expression profiling might be gained. Copyright © 2015 Elsevier B.V. All rights reserved.

  19. Axolotl cells and tissues enhances cutaneous wound healing in mice

    OpenAIRE

    DEMIRCAN, Turan; KESKIN, Ilknur; GUNAL, Yalcin; ILHAN, Ayse Elif; KOLBASI, Bircan; OZTURK, Gurkan

    2017-01-01

    Adult mammalian skin wound repair is defective due to loss of the regulation in balancing the complete epithelial regeneration and excessive connective tissue production, and this repair process commonly results in scar tissue formation. However, unlike mammals, adult salamanders repair the wounds by regeneration compared to scarring. To elucidate the healing capability of a salamander, Axolotl, in a different species, here we addressed this question by treating the wounds in mice with Axolot...

  20. Insect Pest Control Newsletter, No. 73, July 2009

    International Nuclear Information System (INIS)

    2009-07-01

    This issue of the Newsletter reports on status of technical cooperation field projects, coordinated research projects and research coordination meetings, developments at the Entomology Unit Seibersdorf, training courses offered on insect pest control as well as news items on other activities of the Insect Pest Control Section

  1. Insect Pest Control Newsletter, No. 73, July 2009

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2009-07-15

    This issue of the Newsletter reports on status of technical cooperation field projects, coordinated research projects and research coordination meetings, developments at the Entomology Unit Seibersdorf, training courses offered on insect pest control as well as news items on other activities of the Insect Pest Control Section.

  2. FEPSAC Newsletter (July 2017)

    OpenAIRE

    Sanchez, Xavier; Fritsch, Julian

    2017-01-01

    Welcome to this issue of the FEPSAC Newsletter – Fédération Européenne de Psychologie des Sport et des Activités Corporelles (European Federation of Sport Psychology).\\ud \\ud FEPSAC managing council meeting in Lille from May 10–12, 2017\\ud The recent FEPSAC MC meeting took place in Lille, France from May 10–12, 2017 and was hosted by the University of Lille 2 and Centre Resources en Optimisation de la Performance et en Psychologie du Sportif“ (C.R.O.P.S.) organized by Yancy Dufour and Nathali...

  3. FEPSAC newsletter (May 2017)

    OpenAIRE

    Sanchez, Xavier; Fritsch, Julian

    2017-01-01

    Welcome to this issue of the FEPSAC Newsletter – Fédération Européenne de Psychologie des Sport et des Activités Corporelles (European Federation of Sport Psychology).\\ud \\ud BASES-FEPSAC conference 2017\\ud FEPSAC co-organises with the British Association of Sport and Exercise Sciences (BASES) a two-day conference in Nottingham, UK (28–29 November 2017). The event will offer participants the opportunity to share their research and receive valuable feedback from the rest of the delegates as we...

  4. Powernext newsletter n. 36

    International Nuclear Information System (INIS)

    2006-02-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO 2 exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets from 2005 up to January 2006. It reports on some market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts, on Powernext Futures TM in the case of medium-term contracts, and on Powernext Carbon in the case of CO 2 . (J.S.)

  5. Powernext newsletter n. 33

    International Nuclear Information System (INIS)

    2005-11-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO 2 exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets during August, September and October 2005. It reports on some daily market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts, on Powernext Futures TM in the case of medium-term contracts, and on Powernext Carbon in the case of CO 2 . (J.S.)

  6. Powernext newsletter n. 35

    International Nuclear Information System (INIS)

    2006-01-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO 2 exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets during the last 3 months of 2005. It reports on some daily market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts, on Powernext Futures TM in the case of medium-term contracts, and on Powernext Carbon in the case of CO 2 . (J.S.)

  7. SSDL Newsletter. No. 30

    International Nuclear Information System (INIS)

    1991-04-01

    This Secondary Standard Dosimetry Laboratories (SSDL) newsletter features a report of the 4th meeting of the SSDL Scientific Committee, held in Vienna in November, 1990. It also contains a report on the dosimetry audit programme for radiotherapy centres in the United States, from which it is evident that the programme has considerably improved the accuracy of dosimetry in the U.S. Finally, this issue reports the findings of an intercomparison programme to assess the dosimetric accuracy in radiotherapy in Turkey. Refs, figs and tabs

  8. Powernext newsletter n. 34

    International Nuclear Information System (INIS)

    2005-12-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO 2 exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets during September, October and November 2005. It reports on some daily market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts, on Powernext Futures TM in the case of medium-term contracts, and on Powernext Carbon in the case of CO 2 . (J.S.)

  9. Powernext newsletter n. 29

    International Nuclear Information System (INIS)

    2005-05-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange market. This issue of Powernext newsletter presents the highlights of the European power trade markets during March, April and May 2005. It reports on some daily market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts, and on Powernext Futures TM in the case of medium-term contracts. A cooperation agreement in the CO 2 market is announced between the European Climate Exchange (ECX) and Powernext. Powernext Carbon will be launched on June 24, 2005. (J.S.)

  10. Powernext newsletter n. 31

    International Nuclear Information System (INIS)

    2005-09-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO 2 exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets during June, July and August 2005. It reports on some daily market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts, on Powernext Futures TM in the case of medium-term contracts, and on Powernext Carbon in the case of CO 2 . (J.S.)

  11. XRF newsletter. No. 2

    International Nuclear Information System (INIS)

    2001-10-01

    This periodical XRF Newsletter is to inform the XRF laboratories in IAEA Member States on recent developments in the field of XRF spectrometry and to exchange views on fundamental and applied aspects of sampling, sample preparation, instrumentation, quantitation, quality control, etc. It presents the XRF activities and the main XRF results obtained at the IAEA's model XRF Laboratory in Seibersdorf and in XRF laboratories in the Member States. It includes input from the Member States to help the XRF laboratories to improve their analytical performance, extend the applicability range of XRF techniques and initiate co-operation

  12. Powernext newsletter n. 30

    International Nuclear Information System (INIS)

    2005-06-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO 2 exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets during April, May and June 2005. It reports on some daily market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts, and on Powernext Futures TM in the case of medium-term contracts. It presents the very first results of Powernext Carbon, the newly launched CO 2 trade market. (J.S.)

  13. Powernext newsletter n. 37

    International Nuclear Information System (INIS)

    2006-03-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO 2 exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets from 2005 up to February 2006. It reports on some market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts, on Powernext Futures TM in the case of medium-term contracts, and on Powernext Carbon in the case of CO 2 . (J.S.)

  14. ISAM newsletter. No. 3

    International Nuclear Information System (INIS)

    Torres, Carlos

    1998-11-01

    This issue of the ISAM newsletter informs on the past and forthcoming ISAM Co-ordinating Group meetings and highlights working group and safety case activities. The document briefs on the particular safety cases: Vault safety case; Radon-type facility safety case; and Borehole safety case. The document highlights also the ISAM Virtual Workspace which provides the opportunity through the World Wide Web for ISAM participants to share information and to work together on the Safety Cases and Working Group Activities. A list of ISAM documents is provided

  15. Diffusion tensor tractography reveals muscle reconnection during axolotl limb regeneration.

    Directory of Open Access Journals (Sweden)

    Cheng-Han Wu

    Full Text Available Axolotls have amazing ability to regenerate their lost limbs. Our previous works showed that after amputation the remnant muscle ends remained at their original location whilst sending satellite cells into the regenerating parts to develop into early muscle fibers in the late differentiation stage. The parental and the newly formed muscle fibers were not connected until very late stage. The present study used non-invasive diffusion tensor imaging (DTI to monitor weekly axolotl upper arm muscles after amputation of their upper arms. DTI tractography showed that the regenerating muscle fibers became visible at 9-wpa (weeks post amputation, but a gap was observed between the regenerating and parental muscles. The gap was filled at 10-wpa, indicating reconnection of the fibers of both muscles. This was confirmed by histology. The DTI results indicate that 23% of the muscle fibers were reconnected at 10-wpa. In conclusion, DTI can be used to visualize axolotls' skeletal muscles and the results of muscle reconnection were in accordance with our previous findings. This non-invasive technique will allow researchers to identify the timeframe in which muscle fiber reconnection takes place and thus enable the study of the mechanisms underlying this reconnection.

  16. Experimentally induced metamorphosis in axolotls reduces regenerative rate and fidelity

    Science.gov (United States)

    Stier, Adrian C.; Michonneau, François; Smith, Matthew D.; Pasch, Bret; Maden, Malcolm

    2014-01-01

    Abstract While most tetrapods are unable to regenerate severed body parts, amphibians display a remarkable ability to regenerate an array of structures. Frogs can regenerate appendages as larva, but they lose this ability around metamorphosis. In contrast, salamanders regenerate appendages as larva, juveniles, and adults. However, the extent to which fundamental traits (e.g., metamorphosis, body size, aging, etc.) restrict regenerative ability remains contentious. Here we utilize the ability of normally paedomorphic adult axolotls (Ambystoma mexicanum) to undergo induced metamorphosis by thyroxine exposure to test how metamorphosis and body size affects regeneration in age‐matched paedomorphic and metamorphic individuals. We show that body size does not affect regeneration in adult axolotls, but metamorphosis causes a twofold reduction in regeneration rate, and lead to carpal and digit malformations. Furthermore, we find evidence that metamorphic blastemal cells may take longer to traverse the cell cycle and display a lower proliferative rate. This study identifies the axolotl as a powerful system to study how metamorphosis restricts regeneration independently of developmental stage, body size, and age; and more broadly how metamorphosis affects tissue‐specific changes. PMID:27499857

  17. Soils Newsletter. V. 15, no. 2

    International Nuclear Information System (INIS)

    1992-12-01

    This newsletter contains reports of the five Research Co-ordination Meetings held in 1992; the descriptions of the meetings on ''The use of nuclear and related techniques in the management of nitrogen-fixing trees for enhancing soil fertility and soil conservation'' and ''The use of isotope studies on increasing and stabilizing plant productivity in low phosphate and semi-arid and sub-humid soils of the tropics and sub-tropics'' contain excerpts from presented reports. Also included is a feature on some of the the Technical Co-operation Projects coming under the umbrella of the Regional African Project on Biological Nitrogen Fixation

  18. Plant breeding and genetics newsletter. No. 14

    International Nuclear Information System (INIS)

    2004-12-01

    These last six months, the Plant Breeding and Genetics (PBG) Section of the Joint FAO/IAEA Division (NAFA/AGE) implemented five Research Coordination Meetings (RCMs) and one Consultants Meeting for a new Coordinated Research Project (CRP) on 'Molecular tools for quality improvement in vegetatively propagated crops including banana and cassava' (8-11 November 2004, Vienna). Other salient points were the training courses we implemented this semester in the framework of different Technical Cooperation (TC) projects.Details about these activities inside this Newsletter

  19. ITER EDA newsletter. V. 6, no. 4

    International Nuclear Information System (INIS)

    1997-04-01

    This issue of the ITER EDA (Engineering Design Activities) Newsletter reports on the Toroidal Field Model Coil Project (Coil System, Objectives, Design, Project Management, Testing); contains a report of A Combined Workshop of Confinement Modeling and Database and Confinement and Transport Expert Groups held at the San Diego ITER Joint Work Site from April 14. to 18. Progress and status on implementing the ITER Confinement R and D needs as specified at the last Workshops of the Expert Groups in Montreal (Oct. 1996) were reported. 7 figs, 1 tab

  20. Spent Fuel Management Newsletter. No. 1

    International Nuclear Information System (INIS)

    1990-03-01

    This Newsletter has been prepared in accordance with the recommendations of the International Regular Advisory Group on Spent Fuel Management and the Agency's programme (GC XXXII/837, Table 76, item 14). The main purpose of the Newsletter is to provide Member States with new information about the state-of-the-art in one of the most important parts of the nuclear fuel cycle - Spent Fuel Management. The contents of this publication consists of two parts: (1) IAEA Secretariat contribution -work and programme of the Nuclear Materials and Fuel Cycle Technology Section of the Division of Nuclear Fuel Cycle and Waste Management, recent and planned meetings and publications, Technical Co-operation projects, Co-ordinated Research programmes, etc. (2) Country reports - national programmes on spent fuel management: current and planned storage and reprocessing capacities, spent fuel arisings, safety, transportation, storage, treatment of spent fuel, some aspects of uranium and plutonium recycling, etc. The IAEA expects to publish the Newsletter once every two years between the publications of the Regular Advisory Group on Spent Fuel Management. Figs and tabs

  1. Newsletter '77 in stereology

    International Nuclear Information System (INIS)

    Ondracek, G.

    1977-12-01

    There are three groups of contributions forming the present Newsletter in Stereology which are such of theoretical type, stereological activities in bio-sciences and quatitative image analysis in materials science. The report is introduced by two papers treating theoretical problems as the definition of particle size based on the total curvature and the definition of pattern recognition categories. It than follows a summarizing description and comparison of alternative techniques used to measure and conclude stereological parameters in bio-sciences. The discussion includes the sample preparation, semi- and complete automatic measuring procedures as well as the computation of primary data. The biological part ends by considering the use of those quantitative microscopical methods to investigate and classify foreign compounds inside the human liver stereologically. The materials science part reports about tests made on steel specimens to evaluate the accuracy of automatic microstructural analyses and about the use of image 'erosion' and 'dilatation' to measure microstructural parameters automatically. The last subject is part of a serie on morphology in quantitative metallography started in the previous Newsletter '76. The last paper on materials sciences considers the use of stereology and microstructural analysis in respect to a quality control, choosing WC-Co hardmetals as an example, where stereologically defined microstructural parameters do not serve only to describe microstructures quantitatively but also provide a usefull tool to determine properties indirectly. (orig.) [de

  2. Mutation breeding newsletter. No. 22

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1983-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  3. Mutation breeding newsletter. No. 29

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-02-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  4. Mutation breeding newsletter. No. 15

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1980-02-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  5. Mutation breeding newsletter. No. 5

    International Nuclear Information System (INIS)

    1975-02-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  6. Mutation breeding newsletter. No. 15

    International Nuclear Information System (INIS)

    1980-02-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  7. Mutation breeding newsletter. No. 14

    International Nuclear Information System (INIS)

    1979-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  8. Mutation breeding newsletter. No. 16

    International Nuclear Information System (INIS)

    1980-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  9. Mutation breeding newsletter. No. 12

    International Nuclear Information System (INIS)

    1978-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  10. Mutation breeding newsletter. No. 28

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1986-09-01

    This issue of the Newsletter presents reports and research abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  11. Mutation breeding newsletter. No. 29

    International Nuclear Information System (INIS)

    1987-02-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  12. Mutation breeding newsletter. No. 9

    International Nuclear Information System (INIS)

    1977-01-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  13. Mutation breeding newsletter. No. 7

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1976-01-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  14. Mutation Breeding Newsletter. No. 37

    International Nuclear Information System (INIS)

    1991-01-01

    This newsletter contains a brief account of FAO/IAEA meetings held in 1990 on plant breeding involving the use of induced mutations. It also features a list of commercially available plant cultivars produced by such techniques. Refs and tabs

  15. Mutation breeding newsletter. No. 4

    International Nuclear Information System (INIS)

    1974-08-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  16. Mutation breeding newsletter. No. 45

    International Nuclear Information System (INIS)

    2001-07-01

    This issue of the Mutation Breeding newsletter contains 39 articles dealing with radiation induced mutations and chemical mutagenesis techniques in plant breeding programs with the aims of improving crop productivity and disease resistance as well as exploring genetic variabilities

  17. Mutation breeding newsletter. No. 18

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1981-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  18. Mutation breeding newsletter. No. 9

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1977-01-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  19. Mutation breeding newsletter. No. 24

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1984-07-01

    This issue of the Newsletter presents reports and research abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  20. Mutation breeding newsletter. No. 32

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1988-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  1. Mutation breeding newsletter. No. 3

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1974-01-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  2. Mutation breeding newsletter. No. 3

    International Nuclear Information System (INIS)

    1974-01-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  3. Mutation breeding newsletter. No. 11

    International Nuclear Information System (INIS)

    1978-02-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  4. Mutation breeding newsletter. No. 6

    International Nuclear Information System (INIS)

    1975-08-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  5. Mutation breeding newsletter. No. 1

    International Nuclear Information System (INIS)

    1972-05-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  6. Mutation breeding newsletter. No. 31

    International Nuclear Information System (INIS)

    1988-03-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  7. Mutation breeding newsletter. No. 44

    International Nuclear Information System (INIS)

    1999-04-01

    This issue of the Newsletter presents research reports on the role of radiation induced mutation and chemical mutagens in improving productivity, disease resistance; cold and salinity tolerance of various crops and ornamental plants

  8. Mutation breeding newsletter. No. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1972-05-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  9. Mutation breeding newsletter. No. 25

    International Nuclear Information System (INIS)

    1985-01-01

    This issue of the Newsletter presents reports and research abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  10. Mutation breeding newsletter. No. 32

    International Nuclear Information System (INIS)

    1988-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  11. Mutation breeding newsletter. No. 5

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1975-02-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  12. Mutation breeding newsletter. No. 20

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1982-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  13. Mutation breeding newsletter. No. 28

    International Nuclear Information System (INIS)

    1986-09-01

    This issue of the Newsletter presents reports and research abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  14. Mutation breeding newsletter. No. 17

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1981-03-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  15. Mutation breeding newsletter. No. 16

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1980-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  16. Mutation breeding newsletter. No. 8

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1976-09-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  17. Mutation breeding newsletter. No. 4

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1974-08-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  18. Mutation breeding newsletter. No. 12

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1978-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  19. Mutation breeding newsletter. No. 6

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1975-08-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  20. Mutation breeding newsletter. No. 10

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1977-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  1. Mutation breeding newsletter. No. 14

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1979-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  2. Mutation breeding newsletter. No. 19

    International Nuclear Information System (INIS)

    1982-01-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  3. Mutation breeding newsletter. No. 7

    International Nuclear Information System (INIS)

    1976-01-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  4. Mutation breeding newsletter. No. 24

    International Nuclear Information System (INIS)

    1984-07-01

    This issue of the Newsletter presents reports and research abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  5. Mutation breeding newsletter. No. 20

    International Nuclear Information System (INIS)

    1982-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  6. Mutation breeding newsletter. No. 18

    International Nuclear Information System (INIS)

    1981-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  7. Nuclear data newsletter. No. 31

    International Nuclear Information System (INIS)

    2001-03-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue includes announcement of new data libraries, and gives citations for various current nuclear data publications

  8. Mutation breeding newsletter. No. 31

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1988-03-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  9. Computer Program Newsletter No. 7

    International Nuclear Information System (INIS)

    Magnuson, W.G. Jr.

    1982-09-01

    This issue of the Computer Program Newsletter updates an earlier newsletter (Number 2, September 1979) and focuses on electrical network analysis computer programs. In particular, five network analysis programs (SCEPTRE, SPICE2, NET2, CALAHAN, and EMTP) will be described. The objective of this newsletter will be to provide a very brief description of the input syntax and semantics for each program, highlight their strong and weak points, illustrate how the programs are run at Lawrence Livermore National Laboratory using the Octopus computer network, and present examples of input for each of the programs to illustrate some of the features of each program. In a sense, this newsletter can be used as a quick reference guide to the programs

  10. Mutation breeding newsletter. No. 27

    International Nuclear Information System (INIS)

    1986-02-01

    This issue of the Newsletter presents reports and research abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  11. Mutation breeding newsletter. No. 26

    International Nuclear Information System (INIS)

    1985-10-01

    This issue of the Newsletter presents reports and research abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  12. Mutation breeding newsletter. No. 17

    International Nuclear Information System (INIS)

    1981-03-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  13. Mutation breeding newsletter. No. 30

    International Nuclear Information System (INIS)

    1987-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  14. Mutation breeding newsletter. No. 13

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1979-02-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  15. Mutation breeding newsletter. No. 30

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  16. Mutation breeding newsletter. No. 19

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1982-01-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  17. Mutation breeding newsletter. No. 26

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-10-01

    This issue of the Newsletter presents reports and research abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  18. Mutation breeding newsletter. No. 25

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-01-01

    This issue of the Newsletter presents reports and research abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  19. Mutation breeding newsletter. No. 23

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1983-01-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  20. Mutation breeding newsletter. No. 27

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1986-02-01

    This issue of the Newsletter presents reports and research abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  1. Mutation breeding newsletter. No. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1973-02-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  2. Mutation breeding newsletter. No. 11

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1978-02-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants.

  3. Mutation breeding newsletter. No. 23

    International Nuclear Information System (INIS)

    1983-01-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  4. Mutation breeding newsletter. No. 2

    International Nuclear Information System (INIS)

    1973-02-01

    This issue of the Newsletter presents reports and rea search abstracts on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  5. Mutation breeding newsletter. No. 10

    International Nuclear Information System (INIS)

    1977-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  6. Mutation breeding newsletter. No. 8

    International Nuclear Information System (INIS)

    1976-09-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  7. Mutation breeding newsletter. No. 13

    International Nuclear Information System (INIS)

    1979-02-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  8. Mutation breeding newsletter. No. 22

    International Nuclear Information System (INIS)

    1983-07-01

    This issue of the Newsletter presents new reports on mutation breeding programs using radiation or chemical mutagenesis to improve productivity, introduce disease resistance or induce morphological changes in crop plants

  9. POWERNEXT Newsletter n. 41

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-01-15

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO{sub 2} exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets for the past months and up to January 2006 (editorial: let's give the organized market its due place). It reports on some market statistics related to prices and volumes traded on Powernext Day-Ahead{sup TM} in the case of day-ahead contracts (January 2006 to January 2007), on Powernext Futures{sup TM} in the case of medium-term contracts (December 2005 to December 2006), and on Powernext Carbon in the case of CO{sub 2} (December 2005 to December 2006). Some Powernext and market news are summarized at the end of the document. (J.S.)

  10. SSDL Newsletter. No. 38

    International Nuclear Information System (INIS)

    1998-01-01

    This issue of the SSDL Newsletter consists of three reports. The first article is a report from the first Research Coordination Meeting (RCM) for the Coordinated Research Programme (CRP E2.10.02) on the development of a quality assurance programme for SSDLs. The objective of this CRP is to develop specific guidance for the SSDLs to establish Quality Systems and to prepare appropriate Quality Manuals. The second article reports on the results of the 1997 intercomparison of ionization chamber calibration factors in the IAEA/WHO Network of SSDLs. Since January 1998, this service is offered to all Network members. The third article reports on a national quality audit programme for radiotherapy centers in Iran. This programme has been set up and run by the SSDL in Iran. It is worthwhile mentioning that many SSDL Network members have now started to run quality audit programmes for end users in their countries

  11. SSDL newsletter. No. 37

    International Nuclear Information System (INIS)

    1997-07-01

    This is a special issue of the SSDL Newsletter. It consists of only one document, a Charter for the Network of SSDLs which was drafted during an Advisory Group Meeting held at the IAEA Headquarters in May 1997. The Charter follows a recommendation of the SSDL Scientific Committee during its Seventh Meeting, held at the IAEA Headquarters from 30 September to 4 October 1997, that the Agency develops an SSDL Charter detailing the responsibilities and tasks of the SSDL Network members. As a follow-up of this recommendation, a Consultant Meeting on this task was organized and held at the Agency in May 1997. For the development of the Charter, the consultants reviewed the IAEA publication ''Secondary Standard Dosimetry Laboratory: Development and trends'' (1985) and took into account the past 20 years experience of the Agency

  12. POWERNEXT Newsletter n. 41

    International Nuclear Information System (INIS)

    2006-01-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO 2 exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets for the past months and up to January 2006 (editorial: let's give the organized market its due place). It reports on some market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts (January 2006 to January 2007), on Powernext Futures TM in the case of medium-term contracts (December 2005 to December 2006), and on Powernext Carbon in the case of CO 2 (December 2005 to December 2006). Some Powernext and market news are summarized at the end of the document. (J.S.)

  13. SSDL newsletter. No. 37

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    This is a special issue of the SSDL Newsletter. It consists of only one document, a Charter for the Network of SSDLs which was drafted during an Advisory Group Meeting held at the IAEA Headquarters in May 1997. The Charter follows a recommendation of the SSDL Scientific Committee during its Seventh Meeting, held at the IAEA Headquarters from 30 September to 4 October 1997, that the Agency develops an SSDL Charter detailing the responsibilities and tasks of the SSDL Network members. As a follow-up of this recommendation, a Consultant Meeting on this task was organized and held at the Agency in May 1997. For the development of the Charter, the consultants reviewed the IAEA publication ``Secondary Standard Dosimetry Laboratory: Development and trends`` (1985) and took into account the past 20 years experience of the Agency. 8 refs, 2 figs, 1 tab.

  14. The axolotl (Ambystoma mexicanum), a neotenic amphibian, expresses functional thyroid hormone receptors.

    Science.gov (United States)

    Safi, Rachid; Bertrand, Stéphanie; Marchand, Oriane; Duffraisse, Marilyne; de Luze, Amaury; Vanacker, Jean-Marc; Maraninchi, Marie; Margotat, Alain; Demeneix, Barbara; Laudet, Vincent

    2004-02-01

    Neotenic amphibians such as the axolotl (Ambystoma mexicanum) are often unable to undergo metamorphosis under natural conditions. It is thought that neoteny represents a deviation from the standard course of amphibian ontogeny, affecting the thyroid axis at different levels from the central nervous system to peripheral organs. Thyroid hormone receptors (TRs) that bind the thyroid hormone (TH) T(3) have been described in axolotl. However, the full sequences of TR were needed to better characterize the TH response and to be able to assess their functional capacity at the molecular level. We report that each of the alpha and beta axolotl TRs bind both DNA and TH, and they activate transcription in response to TH in a mammalian cell-based transient transfection assay. Moreover, both TRs are expressed in axolotl tissues. Interestingly, each TR gene generates alternatively spliced isoforms, harboring partial or total deletions of the ligand-binding domain, which are expressed in vivo. Further, we found that in the axolotl, TH regulates the expression of stromelysin 3 and collagenase 3, which are TH target genes in Xenopus. Taken together, these results suggest that axolotl TRs are functional and that the molecular basis of neoteny in the axolotl is not linked to a major defect in TH response in peripheral tissues.

  15. Detailed tail proteomic analysis of axolotl (Ambystoma mexicanum) using an mRNA-seq reference database.

    Science.gov (United States)

    Demircan, Turan; Keskin, Ilknur; Dumlu, Seda Nilgün; Aytürk, Nilüfer; Avşaroğlu, Mahmut Erhan; Akgün, Emel; Öztürk, Gürkan; Baykal, Ahmet Tarık

    2017-01-01

    Salamander axolotl has been emerging as an important model for stem cell research due to its powerful regenerative capacity. Several advantages, such as the high capability of advanced tissue, organ, and appendages regeneration, promote axolotl as an ideal model system to extend our current understanding on the mechanisms of regeneration. Acknowledging the common molecular pathways between amphibians and mammals, there is a great potential to translate the messages from axolotl research to mammalian studies. However, the utilization of axolotl is hindered due to the lack of reference databases of genomic, transcriptomic, and proteomic data. Here, we introduce the proteome analysis of the axolotl tail section searched against an mRNA-seq database. We translated axolotl mRNA sequences to protein sequences and annotated these to process the LC-MS/MS data and identified 1001 nonredundant proteins. Functional classification of identified proteins was performed by gene ontology searches. The presence of some of the identified proteins was validated by in situ antibody labeling. Furthermore, we have analyzed the proteome expressional changes postamputation at three time points to evaluate the underlying mechanisms of the regeneration process. Taken together, this work expands the proteomics data of axolotl to contribute to its establishment as a fully utilized model. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  16. Forever young: Endocrinology of paedomorphosis in the Mexican axolotl (Ambystoma mexicanum).

    Science.gov (United States)

    De Groef, Bert; Grommen, Sylvia V H; Darras, Veerle M

    2018-05-16

    The Mexican axolotl (Ambystoma mexicanum) is a salamander species that does not undergo metamorphosis, resulting in the retention of juvenile characteristics in the mature breeding stage (paedomorphosis). Here we review the endocrinological studies investigating the proximate cause of axolotl paedomorphosis with a focus on the hypothalamo-pituitary-thyroid (HPT) axis. It is well established that axolotl paedomorphosis is a consequence of low activity of the HPT axis. The pituitary hormone thyrotropin (TSH) is capable of inducing metamorphosis in the axolotl, which indicates that all processes and interactions in the HPT axis below the pituitary level are functional, but that TSH release is impaired. In metamorphosing species, TSH secretion is largely controlled by the hypothalamic neuropeptide corticotropin-releasing hormone (CRH), which seems to have lost its thyrotropic activity in the axolotl. However, preliminary experiments have not yet confirmed a role for faulty CRH signalling in axolotl paedomorphosis. Other hypothalamic factors and potential pituitary inhibitors need to be investigated to identify their roles in amphibian metamorphosis and axolotl paedomorphosis. Copyright © 2018 Elsevier Inc. All rights reserved.

  17. SSDL newsletter. No. 43

    International Nuclear Information System (INIS)

    2000-07-01

    The main article of this issue of the SSDL Newsletter deals with the calibration of low energy photon sources and beta-ray brachytherapy sources. It contains guidelines to SSDLs and hospital physicists for the calibration of these sources. The report has been prepared in close collaboration with the ICRU Report Committee on this subject, who is also planning to publish a report on the calibration of these types of sources. During the sixties and seventies, the IAEA published documents on computerized radiotherapy dose calculations, such as TRS-8 on Single-Field Isodose Charts for High-Energy Radiation (1962) and the 4 Volumes of the ''Atlas of Radiation Dose Distributions'' (1965-1972). During the eighties and nineties, no document was published by the IAEA in this field, even if major developments had occurred in that period. Specifically, fast computers and powerful Monte Carlo systems and application codes, addressed to radiotherapy treatment planning, were developed with the aim to provide sufficiently accurate dose calculations and great increases in speed. A consultants' meeting was held at the IAEA with a group of experts in the field to discuss current needs and trends, and to make recommendations to the IAEA. The consultants emphasized the need for the IAEA to play an active role in this field. Their full report is the second article of this Newsletter. Four new SSDLs have recently joined our Network: these are from Germany, Greece, Ethiopia and Vietnam. They have been added to the database of the IAEA/WHO Network of SSDLs and are listed on pages 44-45 of Member Laboratories

  18. XRF newsletter No. 12, December 2006

    International Nuclear Information System (INIS)

    2007-01-01

    This periodical XRF Newsletter is to inform the XRF laboratories in IAEA Member States on recent developments in the field of XRF spectrometry and to exchange views on fundamental and applied aspects of sampling, sample preparation, instrumentation, quality control, etc. A few selected examples of the recent activities in the IAEA XRF Laboratory and its results in the field of XRF are presented: Development of a flexible multi-channel digital spectrometer; Support to Technical Cooperation projects. Conferences and workshops in this field are listed

  19. Nuclear data newsletter. No. 42, September 2006

    International Nuclear Information System (INIS)

    2006-09-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and offline news concerning nuclear data libraries and data processing codes. It includes announcements on development activities of IAEA in the field of nuclear data collections and coordinated research projects and lists selected reports and documents on nuclear data as well as cooperating nuclear data service centres. Further it contains technical meetings of note of the consultants meeting on beta decay and decay heat (OECD/NEA, Paris, 2006) and a comprehensiv list of all INDC(NDS) papers published since 1968

  20. Nuclear data newsletter, No. 44, September 2007

    International Nuclear Information System (INIS)

    2007-09-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and database news concerning nuclear data libraries, data processing codes and coordinated research projects and lists selected charts, reports and documents on nuclear data. Further it contains meeting reports of the Coordination of the International Network of Nuclear Structure and Decay Data Evaluators, 11?15 June 2007, St. Petersburg, Russian Federation and the Second Research Coordination Meeting on Development of a Reference Database for Ion Beam Analysis, 18?21 June 2007, IAEA Headquarters, Vienna, Austria

  1. ITER EDA newsletter. V. 5, no. 12

    International Nuclear Information System (INIS)

    1996-12-01

    This issue of the newsletter on the Engineering Design Activities (EDA) for the ITER Tokamak project contains a report on the Eleventh ITER Council Meeting held on December 17-18, 1996 in Tokyo, Japan; a report on the Eleventh Meeting of the ITER Technical Advisory Committee (TAC-11) Meeting held 3-7 December, 1996, at the ITER Naka Joint Work Site, Japan; and a report on the Fifth Workshop of the Confinement Modelling and Database Expert Group held in Montreal, Canada, October 13-16, 1996

  2. ITER ITA Newsletter. No. 29, March 2006

    International Nuclear Information System (INIS)

    2006-05-01

    This issue of ITER ITA (ITER transitional Arrangements) newsletter contains concise information about ITER related activities and meetings, namely, the ITER Director-General Nominee, Dr. Kaname Ikeda, took up his position as ITER Project Leader in Cadarache on 13 March, the consolidation of information technology infrastructure for ITER and about he Thirty-Fifth Meeting of the Fusion Power Co-ordinating Committee (FPCC), which was held on 28 February-1 March 2006 at the headquarters of the International Energy Agency (IEA) in Paris

  3. Spent fuel management newsletter. No. 2

    International Nuclear Information System (INIS)

    1993-04-01

    This issue of the newsletter consists of two parts. The first part describes the IAEA Secretariat activities - work and programme of the Nuclear Materials and Fuel Cycle Technology Section of the Division of Nuclear Fuel Cycle and Waste Management, recent and planned meetings and publications, Technical Co-operation projects, Co-ordinated Research programmes. The second part contains country reports - national programmes on spent fuel management: current and planned storage and reprocessing capacities, spent fuel arisings, safety, transportation, storage and treatment of spent fuel

  4. ITER CTA newsletter. No. 12, September 2002

    International Nuclear Information System (INIS)

    2002-11-01

    This ITER CTA newsletter issue comprises information about two ITER meetings: The meeting of the ITER CTA Project Board (PB), which took place in Toronto, Canada on 16 September 2002 on the occasion of the fifth Negotiations Meeting (N-5) and the second meeting of the International Tokamak Physics Activity (ITPA) coordinating committee, consisting of representatives from the ITPA participants and the topical physics group chairs and co-chairs, which was held at GA Technologies, San Diego, USA on 1-2 March 2002

  5. ITER EDA newsletter. V. 5, no. 6

    International Nuclear Information System (INIS)

    1996-06-01

    This issue of the ITER Engineering Design Activities Newsletter contains a report on the Tenth Meeting of the ITER Technical Advisory Committee; on the papers relevant to the ITER project that were presented during the 12th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices held at St. Raphael, France, on 20-24 May 1996; and a note on the interrelationship between ITER and the PSI Conference, initiated more than twenty years ago by surface and solid-state physicists

  6. Animal production and health newsletter. No. 35

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-12-01

    The editorial of this issue of the Newsletter carries a strong message to its readers how the events of 11 September and the release of anthrax in the USA have affected all those involved in laboratory activities related to infectious agents. In future, it is may be needed to keep detailed records of all dangerous pathogens and account for their production, storage, and use in ways that will prevent, or at least, significantly reduce the risk of their use as bio-weapons. The rest of this issue briefly highlights FAO/IAEA consultants meeting, coordinated research programs and technical cooperation projects.

  7. Animal production and health newsletter. No. 35

    International Nuclear Information System (INIS)

    2001-12-01

    The editorial of this issue of the Newsletter carries a strong message to its readers how the events of 11 September and the release of anthrax in the USA have affected all those involved in laboratory activities related to infectious agents. In future, it is may be needed to keep detailed records of all dangerous pathogens and account for their production, storage, and use in ways that will prevent, or at least, significantly reduce the risk of their use as bio-weapons. The rest of this issue briefly highlights FAO/IAEA consultants meeting, coordinated research programs and technical cooperation projects

  8. Food Irradiation Newsletter. V. 16, no. 1

    International Nuclear Information System (INIS)

    1992-05-01

    This newsletter contains a report on the final FAO/IAEA Research Coordination Meeting (RCM) on the use of irradiation to control the infectivity of food-borne parasites, held in Mexico City in June, 1991, and a brief summary of the second FAO/IAEA RCM on the Asian Regional Cooperative Project on food irradiation, with emphasis on process control and acceptance. The workshops and training courses held between September and December 1991 are presented, and a short article reports the opening of the USA's first commercial food irradiator and describes the initial public reaction

  9. XRF newsletter. No. 11, July 2006

    International Nuclear Information System (INIS)

    2006-08-01

    This periodical XRF Newsletter is to inform the XRF laboratories in IAEA Member States on recent developments in the field of XRF spectrometry and to exchange views on fundamental and applied aspects of sampling, sample preparation, instrumentation, quality control, etc. A few selected examples of the recent activities in the IAEA XRF Laboratory and its results in the field of XRF are presented: Application of X ray imaging techniques to the study of the morphology of malaria mosquitoes; Preparation of insect specimens for micro-XRF analysis; Coordinated Research Project on Unification of nuclear spectrometries: integrated techniques as a new tool for material research

  10. XRF newsletter, No. 13, August 2007

    International Nuclear Information System (INIS)

    2007-08-01

    This periodical XRF Newsletter is to inform the XRF laboratories in IAEA Member States on recent developments in the field of XRF spectrometry and to exchange views on fundamental and applied aspects of sampling, sample preparation, instrumentation, quality control, etc. A few selected examples of the recent activities in the IAEA XRF Laboratory and its results in the field of XRF are presented: Application of X-ray imaging techniques for studying the morphology of malaria-transmitting mosquitoes; International workshop on X-ray Emission Techniques for Forensic Applications; First Research Coordination Meeting under Coordinated Research Project on Unification of Nuclear Spectrometry; Integrated Techniques as a New Tool for Material Research

  11. ITER EDA newsletter. V. 6, no. 1

    International Nuclear Information System (INIS)

    1997-01-01

    This issue of the ITER EDA (Engineering Design Activities) Newsletter reports on the STATUS OF THE ITER EDA Overview, Design Work, ITER Physics; contains a report of the Third Technical Meeting on Quality Assurance was held at the ITER Garching Joint Work Site on 25-27 November 1996. The objectives of the meeting were to review the progress made in the Implementation of QA and to identify weal areas which require improvement. The focus was on the Large R and D Projects assigned to the EU Home Team(HT) or placed under the responsibility of the Garching JWS. 1 fig, 3 tabs

  12. Spent fuel management newsletter. No. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-04-01

    This issue of the newsletter consists of two parts. The first part describes the IAEA Secretariat activities - work and programme of the Nuclear Materials and Fuel Cycle Technology Section of the Division of Nuclear Fuel Cycle and Waste Management, recent and planned meetings and publications, Technical Co-operation projects, Co-ordinated Research programmes. The second part contains country reports - national programmes on spent fuel management: current and planned storage and reprocessing capacities, spent fuel arisings, safety, transportation, storage and treatment of spent fuel.

  13. Insect pest control newsletter, No. 71, July 2008

    International Nuclear Information System (INIS)

    2008-07-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on insect pest control, as well as news items on other activities of the Insect Pest Control Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  14. Insect pest control newsletter. No. 66, January 2006

    International Nuclear Information System (INIS)

    2006-01-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on insect pest control, as well as news items on other activities of the Insect Pest Control Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  15. Insect pest control newsletter, No. 72, January 2009

    International Nuclear Information System (INIS)

    2009-01-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on insect pest control, as well as news items on other activities of the Insect Pest Control Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  16. Soils newsletter. Vol. 28, no. 1, July 2005

    International Nuclear Information System (INIS)

    2005-07-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on Soil, Water and Nutrient Management and staff related news at the Soil and Water Management and Crop Nutrition Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  17. Insect pest control newsletter. No. 69, July 2007

    International Nuclear Information System (INIS)

    2007-07-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on insect pest control, as well as news items on other activities of the Insect Pest Control Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  18. Insect pest control newsletter. No. 68, January 2007

    International Nuclear Information System (INIS)

    2007-01-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on insect pest control, as well as news items on other activities of the Insect Pest Control Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  19. Insect pest control newsletter, No. 70, January 2008

    International Nuclear Information System (INIS)

    2008-01-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on insect pest control, as well as news items on other activities of the Insect Pest Control Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  20. Soils newsletter. Vol. 29, no. 2, December 2006

    International Nuclear Information System (INIS)

    2006-12-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on Soil, Water and Nutrient Management and staff related news at the Soil and Water Management and Crop Nutrition Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  1. Insect pest control newsletter. No. 67, July 2006

    International Nuclear Information System (INIS)

    2006-07-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on insect pest control, as well as news items on other activities of the Insect Pest Control Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  2. Cross-Cultural Psychology Newsletter. Volume 7, Number 2.

    Science.gov (United States)

    Dawson, John, Ed.

    The Cross-Cultural Psychology Newsletter, an official publication of the International Association for Cross-Cultural Psychology, reports on recent publications and research in cross-cultural psychology. Notes on international conferences in the field are followed by annotations of new publications. In addition, recent research projects are…

  3. Soils newsletter. Vol. 28, no. 2, January 2006

    International Nuclear Information System (INIS)

    2006-01-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on Soil, Water and Nutrient Management and staff related news at the Soil and Water Management and Crop Nutrition Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  4. Nuclear power newsletter Vol. 3, no. 2, June 2006

    International Nuclear Information System (INIS)

    2006-06-01

    The topics presented in this newsletter are: The 7th IAEA - FORATOM Joint Workshop on Successful Management of Organizational Change; Message from the Director of the Division of Nuclear Power; Nuclear power plant operation; Management system, infrastructure and training; International Project on Innovative Nuclear Reactors and Fuel Cycles; Technology developments and applications for advanced reactors

  5. Newsletter on Science, Technology & Human Values, Number 24, June 1978.

    Science.gov (United States)

    Shelanski, Vivien B., Ed.

    Two papers are presented in this newsletter: one on the political activity of scientists following World War II as a result of the Manhattan Project, and one on the political activity of scientists today. These papers are followed by two commentaries which compare the two papers. Also included in this issue are news items, a calendar of events, a…

  6. Soils newsletter. Vol. 29, no. 1, July 2006

    International Nuclear Information System (INIS)

    2006-07-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on Soil, Water and Nutrient Management and staff related news at the Soil and Water Management and Crop Nutrition Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  7. Soils newsletter. Vol. 30, no. 1, July 2007

    International Nuclear Information System (INIS)

    2007-07-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on Soil, Water and Nutrient Management and staff related news at the Soil and Water Management and Crop Nutrition Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  8. Soils newsletter. Vol. 26, no. 2, January 2004

    International Nuclear Information System (INIS)

    2004-01-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on Soil, Water and Nutrient Management and staff related news at the Soil and Water Management and Crop Nutrition Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  9. Soils newsletter. Vol. 27, no. 2, December 2004

    International Nuclear Information System (INIS)

    2004-12-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on Soil, Water and Nutrient Management and staff related news at the Soil and Water Management and Crop Nutrition Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  10. Soils newsletter. Vol. 27, no. 1, June 2004

    International Nuclear Information System (INIS)

    2004-06-01

    This issue of the Newsletter reports on status of technical cooperation projects, research coordination meetings and training courses offered on Soil, Water and Nutrient Management and staff related news at the Soil and Water Management and Crop Nutrition Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture

  11. NAWIG News: The Quarterly Newsletter of the Native American Wind Interest Group, Summer 2007

    Energy Technology Data Exchange (ETDEWEB)

    2007-06-01

    DOE's Wind Powering America program has initiated a quarterly NAWIG newsletter to present Native American wind information, including projects, interviews with pioneers, issues, WPA activities, and related events.

  12. Practice tip. Producing newsletters - criteria for success.

    Science.gov (United States)

    Eckermann, Sarah Louise; McIntyre, Ellen; Magarey, Anne

    2007-01-01

    Newsletters, while informal when compared to peer reviewed journals and organisational reports, are a popular communication tool used to provide and share information, for and about people with a common interest or need. Newsletters are an effective way to build networks and improve communication. As the editors of several newsletters in primary health care, the authors have developed criteria that aim to increase the success of a newsletter.

  13. Injection of an antibody against a p21 c-Ha-ras protein inhibits cleavage in axolotl eggs.

    OpenAIRE

    Baltus, E; Hanocq-Quertier, J; Hanocq, F; Brachet, J

    1988-01-01

    The presence of a ras protein was demonstrated in cleaving axolotl eggs by selective immunoprecipitation with a polyclonal antibody against a peptide encoded by the c-Ha-ras oncogene, cellular homolog of the v-Ha-ras oncogene of Harvey rat sarcoma virus. Injection of this antibody into axolotl oocytes subjected to progesterone treatment does not prevent meiotic maturation. Injection of the same antibody into a blastomere of axolotl eggs at the 2- or 4-cell stage causes cleavage arrest in the ...

  14. A Tissue-Mapped Axolotl De Novo Transcriptome Enables Identification of Limb Regeneration Factors

    Directory of Open Access Journals (Sweden)

    Donald M. Bryant

    2017-01-01

    Full Text Available Mammals have extremely limited regenerative capabilities; however, axolotls are profoundly regenerative and can replace entire limbs. The mechanisms underlying limb regeneration remain poorly understood, partly because the enormous and incompletely sequenced genomes of axolotls have hindered the study of genes facilitating regeneration. We assembled and annotated a de novo transcriptome using RNA-sequencing profiles for a broad spectrum of tissues that is estimated to have near-complete sequence information for 88% of axolotl genes. We devised expression analyses that identified the axolotl orthologs of cirbp and kazald1 as highly expressed and enriched in blastemas. Using morpholino anti-sense oligonucleotides, we find evidence that cirbp plays a cytoprotective role during limb regeneration whereas manipulation of kazald1 expression disrupts regeneration. Our transcriptome and annotation resources greatly complement previous transcriptomic studies and will be a valuable resource for future research in regenerative biology.

  15. Misexpression experiment of Tbx5 in axolotl (Ambystoma mexicanum) hindlimb blastema.

    Science.gov (United States)

    Shimokawa, Takashi; Kominami, Rieko; Yasutaka, Satoru; Shinohara, Harumichi

    2013-01-01

    Axolotls (Ambystoma mexicanum) have the ability to regenerate amputated limbs throughout their life span. In the present study, we attempted to elucidate how axolotls can specify limb type correctly during the regeneration process. We misexpressed Tbx5 in regenerating hindlimb blastema, and consequently a forelimb-like hindlimb regenerated from the hindlimb blastema. On the other hand, no change was observed in Tbx5-overexpressing forelimb blastema, and thus we considered that Tbx5 plays a key role in the specification of forelimb during the regeneration process of axolotl limbs. However, axolotls' fore- and hindlimbs have very similar structures except for the number of fingers, and it was very difficult to judge whether the forelimb-like regenerate was a true forelimb or merely a forelimb-like hindlimb. Therefore, in order to confirm our conclusion, we have to investigate other genes that are expressed differentially between fore- and hindlimbs in future experiments.

  16. ICFA Beam Dynamics Newsletter

    Energy Technology Data Exchange (ETDEWEB)

    Ben-Zvi I.; Kuczewski A.; Altinbas, Z.; Beavis, D.; Belomestnykh,; Dai, J. et al

    2012-07-01

    The Collider-Accelerator Department at Brookhaven National Laboratory is building a high-brightness 500 mA capable Energy Recovery Linac (ERL) as one of its main R&D thrusts towards eRHIC, the polarized electron - hadron collider as an upgrade of the operating RHIC facility. The ERL is in final assembly stages, with injection commisioning starting in October 2012. The objective of this ERL is to serve as a platform for R&D into high current ERL, in particular issues of halo generation and control, Higher-Order Mode (HOM) issues, coherent emissions for the beam and high-brightness, high-power beam generation and preservation. The R&D ERL features a superconducting laser-photocathode RF gun with a high quantum efficiency photoccathode served with a load-lock cathode delivery system, a highly damped 5-cell accelerating cavity, a highly flexible single-pass loop and a comprehensive system of beam instrumentation. In this ICFA Beam Dynamics Newsletter article we will describe the ERL in a degree of detail that is not usually found in regular publications. We will discuss the various systems of the ERL, following the electrons from the photocathode to the beam dump, cover the control system, machine protection etc and summarize with the status of the ERL systems.

  17. Newsletter '76 in stereology

    International Nuclear Information System (INIS)

    Ondracek, G.

    1976-08-01

    The present newsletter on stereology deals with a brief outlook about stereological problems to be solved in the future, compares definitions in pattern recognition and stereology and exposes the main notions of mathematical morphology used in quantitative metallography. This includes the description of the main stereological equations relating the parameters describing the dimensional features to the parameters measured in plane sections as well as a special type of equation for practical uses by which the average fiber length in composite materials can be determined. In this context the methods of particle shape descriptions have been summarized and reviewed and an example is given, how particle size and shape distributions can be measured statistically by automatic feature analysis of morphometric sections. - The introduction of stereological microstructural parameters into microstructure - property equations opens the way to calculate the materials properties by a stereological microstructure analysis and extends the possibilities of the common microstructural quality control. This is demonstrated for WC-Co hard metals. (orig./GSC) [de

  18. POWERNEXT Newsletter n. 38

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-05-15

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO{sub 2} exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets for the past months and up to April 2006 (editorial: knowing the fair price in order to take on the energy and climate challenges, need for a better coordination of the information at the European level, a liberalization of the French power market at the standstill for the benefit of the German market and prices). It reports on some market statistics related to prices and volumes traded on Powernext Day-Ahead{sup TM} in the case of day-ahead contracts (April 2005 to April 2006), on Powernext Futures{sup TM} in the case of medium-term contracts (February to April 2006), and on Powernext Carbon in the case of CO{sub 2} (June 2005 to April 2006). Some Powernext and market news are summarized at the end of the document. (J.S.)

  19. POWERNEXT Newsletter n. 40

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-09-15

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO{sub 2} exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets for the past months and up to September 2006 (editorial: liberalization, prices and tariffs: restoring a couple of true facts about the electricity market, partial aspect of French market's opening disrupts its operation and not the opposite, the return to a completely regulated market threatens the balance of the French electricity system and the construction of the Europe of energy). It reports on some market statistics (August 2005 to August 2006) related to prices and volumes traded on Powernext Day-Ahead{sup TM} in the case of day-ahead contracts, on Powernext Futures{sup TM} in the case of medium-term contracts, and on Powernext Carbon in the case of CO{sub 2}. Some Powernext and market news are summarized at the end of the document. (J.S.)

  20. Powernext, newsletter no.20

    International Nuclear Information System (INIS)

    2004-05-01

    This newsletter provides information and statistical data on the four business unit of Powernext: Powernext Day-Ahead, Powernext Carbon, Powernext Futures and Powernext Weather. Powernext Day-Ahead provides a short term price reference to manage the volume risk. Powernext Day-Ahead counts close to 50 members among producers, suppliers, eligible consumers, etc. Powernext Carbon is a spot market of CO 2 allowances. The market model is the result of a three-fold partnership between Powernext, Caisse des Depots and Euronext. Powernext Carbon counts close to 30 active members. More than 2 Million tonnes of CO 2 have been traded since the launch of the market on 24 June. Powernext Carbon has made a name for itself as the most liquid CO 2 allowances spot market in Europe to date. Powernext Futures has made a name for itself as a price reference for the medium term market. Its market makers and members guarantee a high-quality market over a time period going up until 2008. Powernext Weather is a range of economically weather driven temperature indices provided by our partner Meteo France. These indices are decision making or hedging tools. This analysis concerns May 2004. (A.L.B.)

  1. Powernext, newsletter no.27

    International Nuclear Information System (INIS)

    2005-01-01

    This newsletter provides information and statistical data on the four business unit of Powernext: Powernext Day-Ahead, Powernext Carbon, Powernext Futures and Powernext Weather. Powernext Day-Ahead provides a short term price reference to manage the volume risk. Powernext Day-Aheado counts close to 50 members among producers, suppliers, eligible consumers, etc. Powernext Carbon is a spot market of CO 2 allowances. The market model is the result of a three-fold partnership between Powernext, Caisse des Depots and Euronext. Powernext Carbon counts close to 30 active members. More than 2 Million tonnes of CO 2 have been traded since the launch of the market on 24 June. Powernext Carbon has made a name for itself as the most liquid CO 2 allowances spot market in Europe to date. Powernext Futures has made a name for itself as a price reference for the medium term market. Its market makers and members guarantee a high-quality market over a time period going up until 2008. Powernext Weather is a range of economically weather driven temperature indices provided by our partner Meteo France. These indices are decision making or hedging tools. This analysis concerns February and march 2005. (A.L.B.)

  2. Powernext, newsletter no.18

    International Nuclear Information System (INIS)

    2004-03-01

    This newsletter provides information and statistical data on the four business unit of Powernext: Powernext Day-Ahead, Powernext Carbon, Powernext Futures and Powernext Weather. Powernext Day-Ahead provides a short term price reference to manage the volume risk. Powernext Day-Ahead counts close to 50 members among producers, suppliers, eligible consumers, etc. Powernext Carbon is a spot market of CO 2 allowances. The market model is the result of a three-fold partnership between Powernext, Caisse des Depots and Euronext. Powernext Carbon counts close to 30 active members. More than 2 Million tonnes of CO 2 have been traded since the launch of the market on 24 June. Powernext Carbon has made a name for itself as the most liquid CO 2 allowances spot market in Europe to date. Powernext Futures has made a name for itself as a price reference for the medium term market. Its market makers and members guarantee a high-quality market over a time period going up until 2008. Powernext Weather is a range of economically weather driven temperature indices provided by our partner Meteo France. These indices are decision making or hedging tools. This analysis concerns February and March 2004. (A.L.B.)

  3. POWERNEXT Newsletter n. 38

    International Nuclear Information System (INIS)

    2006-05-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO 2 exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets for the past months and up to April 2006 (editorial: knowing the fair price in order to take on the energy and climate challenges, need for a better coordination of the information at the European level, a liberalization of the French power market at the standstill for the benefit of the German market and prices). It reports on some market statistics related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts (April 2005 to April 2006), on Powernext Futures TM in the case of medium-term contracts (February to April 2006), and on Powernext Carbon in the case of CO 2 (June 2005 to April 2006). Some Powernext and market news are summarized at the end of the document. (J.S.)

  4. Powernext, newsletter no.26

    International Nuclear Information System (INIS)

    2005-01-01

    This newsletter provides information and statistical data on the four business unit of Powernext: Powernext Day-Ahead, Powernext Carbon, Powernext Futures and Powernext Weather. Powernext Day-Ahead provides a short term price reference to manage the volume risk. Powernext Day-Ahead counts close to 50 members among producers, suppliers, eligible consumers, etc. Powernext Carbon is a spot market of CO 2 allowances. The market model is the result of a three-fold partnership between Powernext, Caisse des Depots and Euronext. Powernext Carbon counts close to 30 active members. More than 2 Million tonnes of CO 2 have been traded since the launch of the market on 24 June. Powernext Carbon has made a name for itself as the most liquid CO 2 allowances spot market in Europe to date. Powernext Futures has made a name for itself as a price reference for the medium term market. Its market makers and members guarantee a high-quality market over a time period going up until 2008. Powernext Weather is a range of economically weather driven temperature indices provided by our partner Meteo France. These indices are decision making or hedging tools. This analysis concerns January 2005. (A.L.B.)

  5. Powernext, newsletter no.19

    International Nuclear Information System (INIS)

    2004-04-01

    This newsletter provides information and statistical data on the four business unit of Powernext: Powernext Day-Ahead, Powernext Carbon, Powernext Futures and Powernext Weather. Powernext Day-Ahead provides a short term price reference to manage the volume risk. Powernext Day-Ahead counts close to 50 members among producers, suppliers, eligible consumers, etc. Powernext Carbon is a spot market of CO 2 allowances. The market model is the result of a three-fold partnership between Powernext, Caisse des Depots and Euronext. Powernext Carbon counts close to 30 active members. More than 2 Million tonnes of CO 2 have been traded since the launch of the market on 24 June. Powernext Carbon has made a name for itself as the most liquid CO 2 allowances spot market in Europe to date. Powernext Futures has made a name for itself as a price reference for the medium term market. Its market makers and members guarantee a high-quality market over a time period going up until 2008. Powernext Weather is a range of economically weather driven temperature indices provided by our partner Meteo France. These indices are decision making or hedging tools. This analysis concerns April 2004. (A.L.B.)

  6. POWERNEXT Newsletter n. 40

    International Nuclear Information System (INIS)

    2006-09-01

    Powernext SA is a Multilateral Trading Facility which organizes and warrants the transactions on the European power exchange and CO 2 exchange markets. This issue of Powernext newsletter presents the highlights of the European power and carbon trade markets for the past months and up to September 2006 (editorial: liberalization, prices and tariffs: restoring a couple of true facts about the electricity market, partial aspect of French market's opening disrupts its operation and not the opposite, the return to a completely regulated market threatens the balance of the French electricity system and the construction of the Europe of energy). It reports on some market statistics (August 2005 to August 2006) related to prices and volumes traded on Powernext Day-Ahead TM in the case of day-ahead contracts, on Powernext Futures TM in the case of medium-term contracts, and on Powernext Carbon in the case of CO 2 . Some Powernext and market news are summarized at the end of the document. (J.S.)

  7. Powernext, newsletter no.21

    International Nuclear Information System (INIS)

    2004-07-01

    This newsletter provides information and statistical data on the four business unit of Powernext: Powernext Day-Ahead, Powernext Carbon, Powernext Futures and Powernext Weather. Powernext Day-Ahead provides a short term price reference to manage the volume risk. Powernext Day-Ahead counts close to 50 members among producers, suppliers, eligible consumers, etc. Powernext Carbon is a spot market of CO 2 allowances. The market model is the result of a three-fold partnership between Powernext, Caisse des Depots and Euronext. Powernext Carbon counts close to 30 active members. More than 2 Million tonnes of CO 2 have been traded since the launch of the market on 24 June. Powernext Carbon has made a name for itself as the most liquid CO 2 allowances spot market in Europe to date. Powernext Futures has made a name for itself as a price reference for the medium term market. Its market makers and members guarantee a high-quality market over a time period going up until 2008. Powernext Weather is a range of economically weather driven temperature indices provided by our partner Meteo France. These indices are decision making or hedging tools. This analysis concerns July 2004. (A.L.B.)

  8. Data on chemical activation of Wnt/β-catenin during axolotl limb regeneration

    Directory of Open Access Journals (Sweden)

    Sabina Wischin

    2017-04-01

    Full Text Available Limb amputation in axolotls was performed to obtain data demonstrating that a chemical agonist of Wnt (int-related protein/β-catenin signalling can have a role in axolotl limb regeneration (Wischin et al., 2017 [1]. The data revealed that active β-catenin protein was present during limb regeneration in some Leydig cells in the epithelium; after the chemical treatment, it was observed in more Leydig cells. In addition, the chemical agonist of Wnt generated distinct limb malformation.

  9. Evidence for balancing selection at the DAB locus in the axolotl, Ambystoma mexicanum.

    Science.gov (United States)

    Richman, A D; Herrera, G; Reynoso, V H; Méndez, G; Zambrano, L

    2007-12-01

    The axolotl (Ambystoma mexicanum) has been characterized as immunodeficient, and the absence of major histocompatibility complex (MHC) class II polymorphism has been cited as a possible explanation. Here we present evidence for considerable allelic polymorphism at the MHC class II DAB locus for a sample of wild-caught axolotls. Evidence that these sequences are the product of balancing selection for disease resistance is discussed.

  10. Regeneration of limb joints in the axolotl (Ambystoma mexicanum).

    Science.gov (United States)

    Lee, Jangwoo; Gardiner, David M

    2012-01-01

    In spite of numerous investigations of regenerating salamander limbs, little attention has been paid to the details of how joints are reformed. An understanding of the process and mechanisms of joint regeneration in this model system for tetrapod limb regeneration would provide insights into developing novel therapies for inducing joint regeneration in humans. To this end, we have used the axolotl (Mexican Salamander) model of limb regeneration to describe the morphology and the expression patterns of marker genes during joint regeneration in response to limb amputation. These data are consistent with the hypothesis that the mechanisms of joint formation whether it be development or regeneration are conserved. We also have determined that defects in the epiphyseal region of both forelimbs and hind limbs in the axolotl are regenerated only when the defect is small. As is the case with defects in the diaphysis, there is a critical size above which the endogenous regenerative response is not sufficient to regenerate the joint. This non-regenerative response in an animal that has the ability to regenerate perfectly provides the opportunity to screen for the signaling pathways to induce regeneration of articular cartilage and joints.

  11. Regeneration of limb joints in the axolotl (Ambystoma mexicanum.

    Directory of Open Access Journals (Sweden)

    Jangwoo Lee

    Full Text Available In spite of numerous investigations of regenerating salamander limbs, little attention has been paid to the details of how joints are reformed. An understanding of the process and mechanisms of joint regeneration in this model system for tetrapod limb regeneration would provide insights into developing novel therapies for inducing joint regeneration in humans. To this end, we have used the axolotl (Mexican Salamander model of limb regeneration to describe the morphology and the expression patterns of marker genes during joint regeneration in response to limb amputation. These data are consistent with the hypothesis that the mechanisms of joint formation whether it be development or regeneration are conserved. We also have determined that defects in the epiphyseal region of both forelimbs and hind limbs in the axolotl are regenerated only when the defect is small. As is the case with defects in the diaphysis, there is a critical size above which the endogenous regenerative response is not sufficient to regenerate the joint. This non-regenerative response in an animal that has the ability to regenerate perfectly provides the opportunity to screen for the signaling pathways to induce regeneration of articular cartilage and joints.

  12. Comparison of tissue processing methods for microvascular visualization in axolotls.

    Science.gov (United States)

    Montoro, Rodrigo; Dickie, Renee

    2017-01-01

    The vascular system, the pipeline for oxygen and nutrient delivery to tissues, is essential for vertebrate development, growth, injury repair, and regeneration. With their capacity to regenerate entire appendages throughout their lifespan, axolotls are an unparalleled model for vertebrate regeneration, but they lack many of the molecular tools that facilitate vascular imaging in other animal models. The determination of vascular metrics requires high quality image data for the discrimination of vessels from background tissue. Quantification of the vasculature using perfused, cleared specimens is well-established in mammalian systems, but has not been widely employed in amphibians. The objective of this study was to optimize tissue preparation methods for the visualization of the microvascular network in axolotls, providing a basis for the quantification of regenerative angiogenesis. To accomplish this aim, we performed intracardiac perfusion of pigment-based contrast agents and evaluated aqueous and non-aqueous clearing techniques. The methods were verified by comparing the quality of the vascular images and the observable vascular density across treatment groups. Simple and inexpensive, these tissue processing techniques will be of use in studies assessing vascular growth and remodeling within the context of regeneration. Advantages of this method include: •Higher contrast of the vasculature within the 3D context of the surrounding tissue •Enhanced detection of microvasculature facilitating vascular quantification •Compatibility with other labeling techniques.

  13. Animal production and health newsletter. No. 37

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-12-01

    This issue focuses on the specific biotechnological methods that have the greatest potential for livestock production and health in developing countries, and which of these require nuclear and related techniques? The consultants' meeting that we held during 2001 (http://www.iaea.org/programmes/nafa/d3/public/ gene-technologies.pdf) provided us with the answers. We have subsequently discussed these concepts further with FAO, ILRI and other partners, and have planned a series of activities over the next two years to facilitate the transition of our Sub-programme. The first is an FAO/IAEA International Symposium on 'Applications of Gene Based Technologies for Improving Animal Production and Health in Developing Countries' which will be held here in Vienna from 6 to 10 October 2003. The official announcement is included in this Newsletter. This will be followed by three inter-regional training courses, to be held during 2004 and 2005, to train scientists in developing countries on the molecular techniques currently being used in the fields of animal nutrition, genetics and disease diagnosis. Subsequently, four new CRPs will be initiated during 2005-2006, dealing with (a) rumen molecular techniques for predicting and enhancing productivity; (b) manipulation of nutrition in utero to alter gene expression; (c) characterization of small ruminant genetic resources aimed at selection for parasite resistance; and (d) improvement of diagnostic tests for African Swine Fever to assist in molecular epidemiology. The announcements for the first two have already appeared in previous Newsletters and that for the third will be in the next issue. The projects that have been approved for implementation during the next biennium (2003-2004) are listed in this Newsletter.

  14. Animal production and health newsletter. No. 37

    International Nuclear Information System (INIS)

    2002-12-01

    This issue focuses on the specific biotechnological methods that have the greatest potential for livestock production and health in developing countries, and which of these require nuclear and related techniques? The consultants' meeting that we held during 2001 (http://www.iaea.org/programmes/nafa/d3/public/ gene-technologies.pdf) provided us with the answers. We have subsequently discussed these concepts further with FAO, ILRI and other partners, and have planned a series of activities over the next two years to facilitate the transition of our Sub-programme. The first is an FAO/IAEA International Symposium on 'Applications of Gene Based Technologies for Improving Animal Production and Health in Developing Countries' which will be held here in Vienna from 6 to 10 October 2003. The official announcement is included in this Newsletter. This will be followed by three inter-regional training courses, to be held during 2004 and 2005, to train scientists in developing countries on the molecular techniques currently being used in the fields of animal nutrition, genetics and disease diagnosis. Subsequently, four new CRPs will be initiated during 2005-2006, dealing with (a) rumen molecular techniques for predicting and enhancing productivity; (b) manipulation of nutrition in utero to alter gene expression; (c) characterization of small ruminant genetic resources aimed at selection for parasite resistance; and (d) improvement of diagnostic tests for African Swine Fever to assist in molecular epidemiology. The announcements for the first two have already appeared in previous Newsletters and that for the third will be in the next issue. The projects that have been approved for implementation during the next biennium (2003-2004) are listed in this Newsletter

  15. Plasma Physics Network Newsletter. No. 1

    International Nuclear Information System (INIS)

    1989-08-01

    This is the first issue of a quarterly newsletter published by the International Atomic Energy Agency in order to provide news of potential interest of fusion scientists in developing countries. According to the foreword to this first issue, the purpose of the newsletter, as well as the organization called ''Third World Network'', is to ''start the process of unifying the developing country fusion community into some type of cohesive entity and to bring the efforts of the developing countries in the plasma physics research area to the attention of the world fusion community at large''. Furthermore, this first issue contains information about (i) Nuclear Fusion Research in Argentina, (ii) Chinese Fusion Efforts, (iii) Plasma and Fusion Physics in Egypt, (iv) Fusion Research in India, (v) Fusion Research in the Republic of Korea, (vi) Fusion Programmes in Malaysia, (vi) the Agency's Fusion Programme, (vii) a proposal for a workshop on computational plasma physics, sponsored by the Third World Plasma Research Network, (viii) the announcement of the formation of the ''Asian African Association for Plasma Training'', - for the promotion of the initiation/strengthening of plasma research, especially experimental, in developing countries in Asia and Africa, as well as the cooperation and sharing of technology among plasma physicists in the developing countries in the region; (ix) a communication entitled ''Fusion Research in ''Small'' Countries'', I.R. Jones, School of Physical Sciences, The Flinders University of South Australia, Bedford Park, Australia, on the desirability of the pursuit of fusion research in ''small'' countries, i.e., those countries that do not have a national fusion research programme; (x) and, finally, a newsletter on the ITER project

  16. A histological atlas of the tissues and organs of neotenic and metamorphosed axolotl.

    Science.gov (United States)

    Demircan, Turan; İlhan, Ayşe Elif; Aytürk, Nilüfer; Yıldırım, Berna; Öztürk, Gürkan; Keskin, İlknur

    2016-09-01

    Axolotl (Ambystoma Mexicanum) has been emerging as a promising model in stem cell and regeneration researches due to its exceptional regenerative capacity. Although it represents lifelong lasting neoteny, induction to metamorphosis with thyroid hormones (THs) treatment advances the utilization of Axolotl in various studies. It has been reported that amphibians undergo anatomical and histological remodeling during metamorphosis and this transformation is crucial for adaptation to terrestrial conditions. However, there is no comprehensive histological investigation regarding the morphological alterations of Axolotl organs and tissues throughout the metamorphosis. Here, we reveal the histological differences or resemblances between the neotenic and metamorphic axolotl tissues. In order to examine structural features and cellular organization of Axolotl organs, we performed Hematoxylin & Eosin, Luxol-Fast blue, Masson's trichrome, Alcian blue, Orcein and Weigart's staining. Stained samples from brain, gallbladder, heart, intestine, liver, lung, muscle, skin, spleen, stomach, tail, tongue and vessel were analyzed under the light microscope. Our findings contribute to the validation of the link between newly acquired functions and structural changes of tissues and organs as observed in tail, skin, gallbladder and spleen. We believe that this descriptive work provides new insights for a better histological understanding of both neotenic and metamorphic Axolotl tissues. Copyright © 2016 Elsevier GmbH. All rights reserved.

  17. PSI life sciences newsletter 1988

    International Nuclear Information System (INIS)

    Schubiger, P.A.

    1989-10-01

    Even as separate institutes, the EIR (Eidg. Institut fuer Reaktorforschung and the SIN (Schweiz. Institut fuer Nuklearforschung) made use of ionizing radiation and radioactivity in medical diagnosis and therapy. After their fusion into a national laboratory, the Paul Scherrer Institute (PSI), these projects were combined with those of the Radiation Protection Group and the Life Sciences Department was formed. In equality with the departments of Nuclear and Particle Physics, Condensed Matter and Materials Sciences, and Energy Research and Engineering Sciences, the department of Life Sciences is one of the major pillars of the new center. The activities are divided into three areas: radiation medicine, radiopharmacy, and radiation protection. The goal of the first two is to develop social and economic uses of radioactivity and elementary particles. The Division of Radiation Medicine proposes to achieve this through the development of original, dynamic and conformal tumor therapy with charged particles and the Division of Radiopharmacy through the investigation into, and the production of, highly specific diagnostic systems for SPECT, PET and MRI and the investigation of the use of radionuclides in therapy. The third division, Radiation Protection, evaluates the risks of ionizing radiation in biology and the ecosphere and proposes adequate protection measures. The present report describes, in the first section, the outstanding scientific results of the past year and, in the second section, gives a progress report on the on-going programs. It is the first report in this style, but it can be considered as a continuation of the earlier Medical Newsletter of SIN. (author) 59 figs., 19 tabs., 61 refs

  18. SSDL newsletter. No. 46

    International Nuclear Information System (INIS)

    2002-01-01

    The first two articles of this issue of the SSDL Newsletter deal with guidelines for setting up the TLD based Quality Assurance (QA) network at the national level and propose a set of standardized procedures for onsite dosimetry review visits to hospitals for resolving discrepancies occurred in the TLD audits. The third article presents an analysis of the deviations identified through the IAEA/WHO TLD audit service. The fourth article is a short technical note on the results of a comparison conducted between the IAEA and the SSDL-STUK (Finland) of calibration coefficients of a well type chamber. This note is followed by an announcement on the publication of an update of the IAEA TECDOC-1079. The new document is published as IAEA TECDOC-1274. The fifth article is also a technical note on a pilot study to verify electrometer calibration coefficients. The note describes the procedures to be used and invites interested SSDLs of the IAEA/WHO network to participate in the pilot study. The IAEA Dosimetry Laboratory will participate in this pilot study. The verification of calibration coefficients of electrometers is of particular interest to SSDLs who have their reference ionization chamber calibrated alone (without the electrometer) in terms of air kerma or absorbed dose per unit charge or current collected. Before the chamber can be used with an electrometer, it is necessary to verify the calibration coefficient of the electrometer (in terms of charge or current). The sixth article was prepared by the Head of a new SSDL member, the Ionizing Radiation Metrology Laboratory (IRML) of South Africa, who has recently joined the network. It gives an overview of the facilities, activities and QA programme of the IRML. The last article is a short note prepared by the IAEA Secretariat on the use of calibration coefficients instead of calibration factors

  19. SSDL newsletter. No. 41

    International Nuclear Information System (INIS)

    1999-07-01

    The first article of this issue of the SSDL Newsletter is a synopsis of the Ph.D. thesis submitted by Karen Rosser to the University of London in May 1996. If the reader would like the complete version of the thesis, he/she should contact the author at NPL. Readers are reminded that a second edition of the IAEA TRS-277 was published in 1997 (Spanish version in 1998) and the related changes together with the scientific manuscripts were also published as IAEA TECDOC-897. The update concerns primarily the dosimetry of kilovoltage x-rays. The second article presents the IAEA standards for radiation protection and diagnostic radiology. It is worthwhile mentioning that although about 80% of the SSDL laboratory members conduct both radiotherapy and radiation protection calibrations, only few protection level secondary standards are calibrated at the AlEA. During recent years, calibration of protection level secondary standards has represented only a few percent of the therapy level calibrations. It is hoped that this article will give some insight into the activities of the IAEA in the dissemination of standards at radiation protection level dosimetry where proper traceability of measurements with a defined level of uncertainty is as important as in radiotherapy. The last article is the report from a Consultants Meeting related to dosimetry in diagnostic radiology, held at the IAEA in May 1999. The consultants overviewed the scientific achievements in the field and made recommendations to the Agency on the need for further developments. The consultants emphasized the need to develop a Code of Practice which will provide guidance on the establishment of radiation qualities and on the calibration procedures for dosimetry in diagnostic radiology

  20. Insect and Pest Control Newsletter, No. 78, January 2012

    International Nuclear Information System (INIS)

    2012-01-01

    The IPC Newsletter is prepared twice per year by the Insect Pest Control Subprogramme, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture. Contents: To Our Readers; Staff; Forthcoming Events; Past Events; Technical Cooperation Projects; Coordinated Research Projects and Research Coordination Meetings; Developments at the Insect Pest Control Laboratory; Reports; Announcements; In Memoriam; Other News; Relevant Published Articles; Papers in Peer Reviewed Journals; Priced and Unpriced Publications

  1. Insect and Pest Control Newsletter, No. 78, January 2012

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-01-15

    The IPC Newsletter is prepared twice per year by the Insect Pest Control Subprogramme, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture. Contents: To Our Readers; Staff; Forthcoming Events; Past Events; Technical Cooperation Projects; Coordinated Research Projects and Research Coordination Meetings; Developments at the Insect Pest Control Laboratory; Reports; Announcements; In Memoriam; Other News; Relevant Published Articles; Papers in Peer Reviewed Journals; Priced and Unpriced Publications

  2. Plant breeding and genetics newsletter. No. 13

    International Nuclear Information System (INIS)

    2004-06-01

    This issue reports on the creation of the Agency's Subprogramme of Sustainable Intensification of Crop Production Systems (E1) through the merger of the Soils and Plant Breeding and Genetics Subprogrammes together with part of the Entomology Subprogramme activities. Implementation of a new Coordinated Research Project (CRP) on the Effects of Mutagenic Agents on the DNA Sequence in Plants, and the successful submission of a new CRP proposal on Pyramiding of Mutated Genes Contributing to Crop Quality and Resistance to Stress Affecting Quality were among the major activities of our Subprogramme during the last six months. We actively participated in the International Year of Rice (IYR 2004) events such as the Meeting of the Informal International Working Group on the International Year of Rice (IIWG) and the FAO Rice Conference on Rice in Global Markets and Sustainable Production Systems (Rome, Italy), both in February this year. A lot of work has been concentrated this last semester on the preparation of Programme and Budget for the biennium 2006-2007 and the appraisal of TC proposals for the biennium 2005-2006. The Mutation Breeding Newsletter and the Mutation Breeding Review will merge to become the Mutation Breeding Newsletter and Reviews (MBN and R). Starting at the end of July, the MBN and R will appear on a regular basis

  3. Soils newsletter. V. 18, no.1

    International Nuclear Information System (INIS)

    1995-07-01

    This newsletter contains brief presentations of 6 co-ordinated research programmes and 2 training courses, and the following 3 meetings including excerpts from the reports presented: The Final Workshop of the Regional Project for Asia and the Pacific on Nuclear Techniques for the Promotion of Agroforestry Systems held at the University of Khon Kaen, Thailand, 13-17 March 1995 (10 excerpts), The Second Research Co-ordination Meeting of the FAO/IAEA CRP on the ''Use of Nuclear and Related Techniques for Evaluating the Agronomic Effectiveness of Phosphate Fertilizers, in Particular Rock Phosphates'' held in Montpellier, France, from 24-28 April 1995 (18 excerpts) and The Final FAO/IAEA Research Co-ordination Meeting on the ''Use of Nuclear and Related techniques in Assessment of Irrigation Schedules of Field crops to Increase Effective Use of Water in Irrigation Projects'' held in Rabat, Morocco, between 24-28 April 1995 (14 excerpts)

  4. Animal production and health newsletter. No. 20

    International Nuclear Information System (INIS)

    1994-07-01

    The activities of the Animal Production and Health Section of the Joint FAO/IAEA Division are carried out through the operation of Co-ordinated Research Programmes and Technical Co-operation projects, both of which aim to encourage and improve the capacity of national institutions in tropical and subtropical countries to identify and resolve problems connected with livestock development. This particular programme at the outset, it was envisaged that an inter-disciplinary approach would be adopted by each participating institute whereby studies on nutrition, reproduction and health would be integrated into a number of site specific projects. The one discussed in this newsletter covers animal production and focussing on animal reproduction and reproduction-nutrition interactions. This paper contains an outline for the program which encourages scientists from universities and research institutes to provide assistance and solutions to developing countries on the technical difficulties associated with artificial insemination

  5. Soils newsletter. V, 16, no. 1

    International Nuclear Information System (INIS)

    1993-07-01

    The bulk of this newsletter is comprised of reports of meetings held between September 1992 and April 1993. Extracts from reports presented at three meetings are included: the second Research Co-ordination Meeting of the Co-ordinated Research Programme on ''The Use of Molecular Biology in Microbial Ecology''; the final Research Co-ordination Meeting of the Co-ordinated Research Programme on ''The Use of Nuclear and Isotopic Techniques to Improve Crop Production on Salt-Affected Soils''; and the third Research Workshop of the Regional African Project on Biological Nitrogen Fixation. There is also a brief summary of some of the current Technical Co-operation Projects in the Africa region

  6. Network based transcription factor analysis of regenerating axolotl limbs

    Directory of Open Access Journals (Sweden)

    Cameron Jo Ann

    2011-03-01

    Full Text Available Abstract Background Studies on amphibian limb regeneration began in the early 1700's but we still do not completely understand the cellular and molecular events of this unique process. Understanding a complex biological process such as limb regeneration is more complicated than the knowledge of the individual genes or proteins involved. Here we followed a systems biology approach in an effort to construct the networks and pathways of protein interactions involved in formation of the accumulation blastema in regenerating axolotl limbs. Results We used the human orthologs of proteins previously identified by our research team as bait to identify the transcription factor (TF pathways and networks that regulate blastema formation in amputated axolotl limbs. The five most connected factors, c-Myc, SP1, HNF4A, ESR1 and p53 regulate ~50% of the proteins in our data. Among these, c-Myc and SP1 regulate 36.2% of the proteins. c-Myc was the most highly connected TF (71 targets. Network analysis showed that TGF-β1 and fibronectin (FN lead to the activation of these TFs. We found that other TFs known to be involved in epigenetic reprogramming, such as Klf4, Oct4, and Lin28 are also connected to c-Myc and SP1. Conclusions Our study provides a systems biology approach to how different molecular entities inter-connect with each other during the formation of an accumulation blastema in regenerating axolotl limbs. This approach provides an in silico methodology to identify proteins that are not detected by experimental methods such as proteomics but are potentially important to blastema formation. We found that the TFs, c-Myc and SP1 and their target genes could potentially play a central role in limb regeneration. Systems biology has the potential to map out numerous other pathways that are crucial to blastema formation in regeneration-competent limbs, to compare these to the pathways that characterize regeneration-deficient limbs and finally, to identify stem

  7. ITER CTA newsletter. No. 8

    International Nuclear Information System (INIS)

    2002-05-01

    This ITER CTA newsletter contains information about the Third Negotiations Meeting on the Joint Implementation of ITER held in Moscow on 23-24 April 2002 and about the visit of Canadian officials and members of the Canadian delegation to RF research center 'Kurchatov Institute'

  8. Nuclear Data Newsletter. No. 24

    International Nuclear Information System (INIS)

    1997-12-01

    This issue of the nuclear data newsletter gives information on the following topics: staff changes in the Data Center, new data libraries, charts of nuclides, conference announcement, data indexes and bibliographies, Nuclear Data Center coordination, nuclear data standards and some nuclear data

  9. Nuclear data newsletter. No. 19

    International Nuclear Information System (INIS)

    1994-09-01

    This issue of the Nuclear Data Newsletter dated September 1994 contains information on the following topics: WRENDA 93/94, online nuclear data service, data indexes and bibliographies, new nuclear data libraries received, a list of publications on nuclear data libraries grouped by type and field

  10. Nuclear data newsletter. No. 16

    International Nuclear Information System (INIS)

    1992-01-01

    This issue of the Nuclear Data Newsletter dated November 1991, gives information on the following topics: Data indexes and bibliographies nuclear data computer codes, new data libraries, selected new publication on nuclear data, numeric data bases all related to the activity of the Nuclear Data Section (NDS) of the IAEA

  11. ITER CTA newsletter. No. 6

    International Nuclear Information System (INIS)

    2002-01-01

    This ITER CTA Newsletter issue comprises information about the following ITER Meetings: The second negotiation meeting on the joint implementation of ITER, held in Tokyo(Japan) on 22-23 January 2002, and an international ITER symposium on burning plasma science and technology, held the day later after the second negotiation meeting at the same place

  12. Nuclear data newsletter. No. 30

    International Nuclear Information System (INIS)

    2000-09-01

    Issue No. 30 of the Nuclear Data Newsletter gives information about the following: new data libraries available at the IAEA (photonuclear data library, charged-particle cross section database for medical radioisotope production); updated databases and libraries; computer codes and packages; list of selected reports and documents; and co-operating nuclear data service centres

  13. Mutation breeding newsletter. No. 40

    International Nuclear Information System (INIS)

    1993-01-01

    This newsletter contains an obituary to Iosif Abramovitch Rapoport and an outline of three new co-ordinated research programmes as well as a number of short contributed articles concerning the development and testing of mutant plant lines. These contributed articles have been indexed separately

  14. Nuclear data newsletter. No. 19

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-09-01

    This issue of the Nuclear Data Newsletter dated September 1994 contains information on the following topics: WRENDA 93/94, online nuclear data service, data indexes and bibliographies, new nuclear data libraries received, a list of publications on nuclear data libraries grouped by type and field.

  15. Nuclear data newsletter. No. 18

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-11-01

    This issue of the Nuclear Data Newsletter dated November 1993 gives information on the following topics: data indexes and bibliographies, new nuclear data libraries received including a package of three data libraries on photon-electron interaction, a list of selected new publications on nuclear data.

  16. Nuclear data newsletter. No. 18

    International Nuclear Information System (INIS)

    1993-11-01

    This issue of the Nuclear Data Newsletter dated November 1993 gives information on the following topics: data indexes and bibliographies, new nuclear data libraries received including a package of three data libraries on photon-electron interaction, a list of selected new publications on nuclear data

  17. Transforming growth factor: beta signaling is essential for limb regeneration in axolotls.

    Directory of Open Access Journals (Sweden)

    Mathieu Lévesque

    2007-11-01

    Full Text Available Axolotls (urodele amphibians have the unique ability, among vertebrates, to perfectly regenerate many parts of their body including limbs, tail, jaw and spinal cord following injury or amputation. The axolotl limb is the most widely used structure as an experimental model to study tissue regeneration. The process is well characterized, requiring multiple cellular and molecular mechanisms. The preparation phase represents the first part of the regeneration process which includes wound healing, cellular migration, dedifferentiation and proliferation. The redevelopment phase represents the second part when dedifferentiated cells stop proliferating and redifferentiate to give rise to all missing structures. In the axolotl, when a limb is amputated, the missing or wounded part is regenerated perfectly without scar formation between the stump and the regenerated structure. Multiple authors have recently highlighted the similarities between the early phases of mammalian wound healing and urodele limb regeneration. In mammals, one very important family of growth factors implicated in the control of almost all aspects of wound healing is the transforming growth factor-beta family (TGF-beta. In the present study, the full length sequence of the axolotl TGF-beta1 cDNA was isolated. The spatio-temporal expression pattern of TGF-beta1 in regenerating limbs shows that this gene is up-regulated during the preparation phase of regeneration. Our results also demonstrate the presence of multiple components of the TGF-beta signaling machinery in axolotl cells. By using a specific pharmacological inhibitor of TGF-beta type I receptor, SB-431542, we show that TGF-beta signaling is required for axolotl limb regeneration. Treatment of regenerating limbs with SB-431542 reveals that cellular proliferation during limb regeneration as well as the expression of genes directly dependent on TGF-beta signaling are down-regulated. These data directly implicate TGF

  18. Pathological features of olfactory neuroblastoma in an axolotl (Ambystoma mexicanum).

    Science.gov (United States)

    Shioda, Chieko; Uchida, Kazuyuki; Nakayama, Hiroyuki

    2011-08-01

    A one-year-old, female Mexican axolotl (Ambystoma mexicanum) had a rough-surfaced, polypoid, pink tumor mass of approximately 10 mm in diameter in the oral cavity. Histologically, the tumor extended from the ethmoturbinate region and into the oral cavity and had replaced some of the maxillary bone tissue. The tumor mass was composed of a lobular architecture of small round-shaped tumor cells with occasional Flexner-Wintersteiner-like rosette formation. There were no metastatic lesions in the other organs. Immunohistochemically, the tumor cells were partly positive for several neural markers (class III beta-tubulin, S-100 protein, and doublecortin) and intensely positive for an epithelial marker (cytokeratin AE1/AE3). These results suggest that the present tumor originated from neuroectodermal tissue. Considering the location and histological and immunohistochemical features of the tumor, a diagnosis of olfactory neuroblastoma was made.

  19. Evolutionary genetics of metamorphic failure using wild-caught vs. laboratory axolotls (Ambystoma mexicanum).

    Science.gov (United States)

    Voss, S R; Shaffer, H B

    2000-09-01

    In many organisms metamorphosis allows for an ecologically important habitat-shift from water to land. However, in some salamanders an adaptive life cycle mode has evolved that is characterized by metamorphic failure (paedomorphosis); these species remain in the aquatic habitat throughout the life cycle. Perhaps the most famous example of metamorphic failure is the Mexican axolotl (Ambystoma mexicanum), which has become a focal species for developmental biology since it was introduced into laboratory culture in the 1800s. Our previous genetic linkage mapping analysis, using an interspecific crossing design, demonstrated that a major gene effect underlies the expression of metamorphic failure in laboratory stocks of the Mexican axolotl. Here, we repeated this experiment using A. mexicanum that were sampled directly from their natural habitat at Lake Xochimilco, Mexico. We found no significant association between the major gene and metamorphic failure when wild-caught axolotls were used in the experimental design, although there is evidence of a smaller genetic effect. Thus, there appears to be genetic variation among Mexican axolotls (and possibly A. tigrinum tigrinum) at loci that contribute to metamorphic failure. This result suggests a role for more than one mutation and possibly artificial selection in the evolution of the major gene effect in the laboratory Mexican axolotl.

  20. Optimized axolotl (Ambystoma mexicanum) husbandry, breeding, metamorphosis, transgenesis and tamoxifen-mediated recombination.

    Science.gov (United States)

    Khattak, Shahryar; Murawala, Prayag; Andreas, Heino; Kappert, Verena; Schuez, Maritta; Sandoval-Guzmán, Tatiana; Crawford, Karen; Tanaka, Elly M

    2014-03-01

    The axolotl (Mexican salamander, Ambystoma mexicanum) has become a very useful model organism for studying limb and spinal cord regeneration because of its high regenerative capacity. Here we present a protocol for successfully mating and breeding axolotls in the laboratory throughout the year, for metamorphosing axolotls by a single i.p. injection and for axolotl transgenesis using I-SceI meganuclease and the mini Tol2 transposon system. Tol2-mediated transgenesis provides different features and advantages compared with I-SceI-mediated transgenesis, and it can result in more than 30% of animals expressing the transgene throughout their bodies so that they can be directly used for experimentation. By using Tol2-mediated transgenesis, experiments can be performed within weeks (e.g., 5-6 weeks for obtaining 2-3-cm-long larvae) without the need to establish germline transgenic lines (which take 12-18 months). In addition, we describe here tamoxifen-induced Cre-mediated recombination in transgenic axolotls.

  1. Proteinaceous Pheromone Homologs Identified from the Cloacal Gland Transcriptome of a Male Axolotl, Ambystoma mexicanum.

    Directory of Open Access Journals (Sweden)

    Kevin W Hall

    Full Text Available Pheromones play an important role in modifying vertebrate behavior, especially during courtship and mating. Courtship behavior in urodele amphibians often includes female exposure to secretions from the cloacal gland, as well as other scent glands. The first vertebrate proteinaceous pheromone discovered, the decapeptide sodefrin, is a female attracting pheromone secreted by the cloacal gland of male Cynops pyrrhogaster. Other proteinaceous pheromones in salamanders have been shown to elicit responses from females towards conspecific males. The presence and levels of expression of proteinaceous pheromones have not been identified in the family Ambystomatidae, which includes several important research models. The objective of this research was therefore to identify putative proteinaceous pheromones from male axolotls, Ambystoma mexicanum, as well as their relative expression levels. The results indicate that axolotls possess two different forms of sodefrin precursor-like factor (alpha and beta, as well as a putative ortholog of plethodontid modulating factor. The beta form of sodefrin precursor-like factor was amongst the most highly expressed transcripts within the cloacal gland. The ortholog of plethodontid modulating factor was expressed at a level equivalent to the beta sodefrin precursor-like factor. The results are from a single male axolotl; therefore, we are unable to assess how representative our results may be. Nevertheless, the presence of these highly expressed proteinaceous pheromones suggests that male axolotls use multiple chemical cues to attract female conspecifics. Behavioral assays would indicate whether the putative protein pheromones elicit courtship activity from female axolotls.

  2. Proteinaceous Pheromone Homologs Identified from the Cloacal Gland Transcriptome of a Male Axolotl, Ambystoma mexicanum.

    Science.gov (United States)

    Hall, Kevin W; Eisthen, Heather L; Williams, Barry L

    2016-01-01

    Pheromones play an important role in modifying vertebrate behavior, especially during courtship and mating. Courtship behavior in urodele amphibians often includes female exposure to secretions from the cloacal gland, as well as other scent glands. The first vertebrate proteinaceous pheromone discovered, the decapeptide sodefrin, is a female attracting pheromone secreted by the cloacal gland of male Cynops pyrrhogaster. Other proteinaceous pheromones in salamanders have been shown to elicit responses from females towards conspecific males. The presence and levels of expression of proteinaceous pheromones have not been identified in the family Ambystomatidae, which includes several important research models. The objective of this research was therefore to identify putative proteinaceous pheromones from male axolotls, Ambystoma mexicanum, as well as their relative expression levels. The results indicate that axolotls possess two different forms of sodefrin precursor-like factor (alpha and beta), as well as a putative ortholog of plethodontid modulating factor. The beta form of sodefrin precursor-like factor was amongst the most highly expressed transcripts within the cloacal gland. The ortholog of plethodontid modulating factor was expressed at a level equivalent to the beta sodefrin precursor-like factor. The results are from a single male axolotl; therefore, we are unable to assess how representative our results may be. Nevertheless, the presence of these highly expressed proteinaceous pheromones suggests that male axolotls use multiple chemical cues to attract female conspecifics. Behavioral assays would indicate whether the putative protein pheromones elicit courtship activity from female axolotls.

  3. EVALUATION OF THE MASTER MARKETER NEWSLETTER

    OpenAIRE

    McCorkle, Dean A.; Waller, Mark L.; Amosson, Stephen H.; Smith, Jackie; Bevers, Stanley J.; Borchardt, Robert

    2001-01-01

    Several support programs have been developed to help support, reinforce, enhance, and improve the effectiveness of the educational experience of Master Marketer graduates and other marketing club participants. One of those products, the Master Marketer Newsletter, is currently mailed to over 700 Master Marketer graduates and Extension faculty on a quarterly basis. In the June 2000 newsletter, a questionnaire was sent to newsletter recipients asking them to evaluate the various sections of the...

  4. Nuclear data newsletter, No. 46, September 2008

    International Nuclear Information System (INIS)

    2008-09-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and database news concerning nuclear data libraries, computer codes and coordinated research projects and lists selected charts, reports and documents on nuclear data. Further it contains meeting reports of the Biennial Meeting of the International Nuclear Data Committee, 22-25 April 2008, IAEA Headquarters, Vienna, Austria; the Joint ICTP-IAEA Advanced Workshop on Model Codes for Spallation Reactions, 4-8 February 2008, ICTP, Trieste, Italy; the Workshop on Nuclear Structure and Decay Data: Theory and Evaluation, 28 April ? 9 May 2008, ICTP Trieste, Italy; the Joint ICTP-IAEA Workshop on Nuclear Reaction Data for Advanced Reactor Technologies, 19-30 May 2008, ICTP, Trieste, Italy and the Consultants Meeting on High-precision Beta-intensity Measurements and Evaluations for Specific PET Radioisotopes, 3-5 September 2008, IAEA, Vienna, Austria

  5. Nuclear data newsletter, No. 47, May 2009

    International Nuclear Information System (INIS)

    2009-05-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and database news concerning nuclear data libraries, computer codes and coordinated research projects and lists selected charts, reports and documents on nuclear data. Further it contains meeting reports of the IAEA Consultants Meeting on Total Absorption Gamma-ray Spectroscopy (TAGS) - Current Status of Measurement Programmes for Decay Heat Calculations and Other Applications, 27 - 28 January 2009, the Workshop on Modelling and Evaluating Nuclear Reaction Data for Transport Calculations, 15-19 December 2008, the Reference Data Libraries for Nuclear Applications - ENSDF, 10-11 November 2008, the Consultants Meeting on International Neutron Cross-Section Standards: Measurements and Evaluation Techniques, 13-15 October 2008 and the Technical Meeting of the International Network of Nuclear Reaction Data Centres, IPPE, Obninsk, and Moscow State University, Moscow, Russian Federation, 22-25 September 2008

  6. Food Irradiation Newsletter. V. 12, no. 1

    International Nuclear Information System (INIS)

    1988-04-01

    This Newsletter reports summaries of work carried out in the past year. A coordinated research programme on ''Use of Irradiation to Control Infectivity of Food-borne Parasites'' was implemented in early 1987. The first Research Coordination Meeting of this programme was held in Poznan, Poland, August 1987 and its report is included. Another important development is ''Food Irradiation Plant: Project Profile'' of the International Finance Corporation (IFC), a subsidiary of the World Bank. IFC is in principle ready to finance installations on food irradiation facilities in developing countries provided that the proposals are submitted through Governmental channels. Details on developing such proposals for possible funding by IFC are included. This issue also contains a supplement, an up-dated list of clearance of irradiated foods. Refs, 1 fig., 1 tab

  7. ITER EDA newsletter. V. 5, no.1

    International Nuclear Information System (INIS)

    1996-01-01

    This issue of the ITER EDA (Engineering Design Activities) Newsletter contains reports on the RF-Based ITER JCT (Joint Central Team) Support Design Team (by N. Kornev), the third international workshop on plasma disruptions (by Dr. A. Hassanein and Dr. V. Litunovski) held at Obninsk, Russia, September 28-29, 1995, and the IAEA Advisory Group Meeting on Completion of Fendl-1 and the start of Fendl-2 (by Dr. A.B. Pashchenko); the Fendl library is a comprehensive collection of high-quality nuclear data, selected from the various existing national data libraries, covering the necessary nuclear input data for all physics and engineering aspects of the material development, design, operation, and safety of the ITER project in its current EDA phase

  8. ITER EDA Newsletter. V.2, no.6

    International Nuclear Information System (INIS)

    1993-06-01

    This issue of the newsletter on the Engineering Design Activities for the ITER Project includes (i) a status report on these activities describing the development of the design and design parameters, the research and development program, the joint central team, and the joint work sites; (ii) a description of the In-Vessel Ancillaries Division (consisting of the RF Heating and Current Drive Group and the In-Vessel Diagnostics Group) including its organizational chart and priorities of activities; (iii) a report on the Technical Meeting on Design Standards and Remote Handling held at the San Diego Co-Centre from May 24-28, 1993; (iv) and a report on a Technical Committee Meeting on Plasma Equilibrium and Control held at the Naka Co-Centre on April 26-29, 1993

  9. SSDL Newsletter, No. 63, December 2014

    International Nuclear Information System (INIS)

    2014-12-01

    This issue of the SSDL Newsletter contains two meeting reports. The first one describes the 16th Scientific Committee of the IAEA/WHO Network of Secondary Standards Dosimetry Laboratories, held at the IAEA Headquarters in March 2014. The second report is prepared from a consultants’ meeting on “Development of a Training Programme for Secondary Standards Dosimetry Laboratories”, held at the IAEA in May 2014. The next contribution is a report of a new IAEA/RCA Regional Project in Medical Physics Education and Training for the Asian region, held at the IAEA in May 2014. An overview of the new IAEA publication on “Diagnostic Radiology Physics: A Handbook for Teachers and Students” is presented in the last article

  10. SSDL Newsletter, No. 59, April 2011

    International Nuclear Information System (INIS)

    2011-04-01

    The first article of this issue of the SSDL Newsletter is a report of the 14th SSDL Scientific Committee (SSC) Meeting held at the IAEA Headquarters in March 2010. The second article is a report of the Coordinated Research Project (CRP E2.10.06) on the Implementation of the International Code of Practice on Dosimetry in Diagnostic Radiology (TRS-457). The third article is a progress report of an international working group jointly established by the IAEA and AAPM on Small and Composite Field Dosimetry. The fourth article briefly describes the purpose and content of a new web site called IAEA Human Health Campus (http://humanhealth.iaea.org). A short note of the IDOS conference held at IAEA Headquarters in Vienna during November 2010 is given in the last article

  11. Nuclear Data Newsletter, No. 62, January 2017

    International Nuclear Information System (INIS)

    2017-01-01

    For many of us, THE nuclear data event of 2016 was the International Conference on Nuclear Data for Science and Technology in Bruges. A short report is available in this issue of the Nuclear Data Newsletter. During the summer, our Section organized a final Technical Meeting of the Data Development Project on Neutron Standards, which are going to be essential for the next release of various world nuclear data libraries, and a Consultancy Meeting on maintenance and improvement of the Fusion Evaluated Nuclear Data Library (FENDL). A relatively new activity is the Meeting on R-matrix codes development, which was held for the second consecutive year, in December 2016. It was interesting to see the development of new R-matrix codes, both from the neutron evaluation community and other fields such as astrophysics.

  12. ITER EDA newsletter. V. 4, no. 11

    International Nuclear Information System (INIS)

    1995-11-01

    This issue of the ITER EDA (Engineering Design Activities) Newsletter contains a report on the Ninth Meeting of the ITER Management Advisory Committee held in St. Petersburg, Russia, on November 3, 1995; a report on the Seventh International Conference on Fusion Reactor Materials held at Obninsk, Russia, 25-29 September, 1995; on the presentation of the ITER Project during a symposium on fusion energy held at Champaign, Illinois, USA, October 1-5, 1995; and on two meetings on ITER diagnostics, i.e., an international workshop on diagnostics for ITER held in Varenna, Italy, 28 August - 1 September, 1995; followed by the Third Diagnostics Expert Group Workshop held September 4-5 in the same location

  13. XRF newsletter. No. 6, August 2003

    International Nuclear Information System (INIS)

    2003-08-01

    This periodical XRF Newsletter is to inform the XRF laboratories in IAEA Member States on recent developments in the field of XRF spectrometry and to exchange views on fundamental and applied aspects of sampling, sample preparation, instrumentation, quality control, etc. A few selected examples of the recent activities in the IAEA XRF Laboratory and its results in the field of XRF are presented: Application of X-ray fluorescence techniques for the determination of hazardous and essential trace elements in environmental and biological materials; X-ray fluorescence analysis and computerized tomographic imaging with a laboratory micro-beam scanning spectrometer; Data acquisition software for X-ray microprobe; XRF Laboratories Database; Collaborative Bronze Art Project

  14. Food and environmental protection newsletter. V. 2, no. 1

    International Nuclear Information System (INIS)

    1999-06-01

    This issue of the Newsletter highlights forthcoming events including a training workshop on T he application of quality control/assurance in pesticide residue analysis. Excerpt of the conference on 'food irradiation '99 - the solution to food safety crisis' held in Washington, D.C. 12-14 April 1999 in also included in this issue. Status of existing co-ordinated and technical co-operation research projects is also summarized

  15. OIT Times Newsletter: Volume 3, Number 1, Winter 2000

    Energy Technology Data Exchange (ETDEWEB)

    Sousa, L.

    1999-12-16

    The Winter 2000 edition of the OIT Times newsletter, a quarterly publication produced by the Office of Industrial Technologies, highlights the 1999 start-up projects, announces the OIT solicitation schedule for FY2000, and features the success of the Ohio diecasting showcase. One of the quarterly highlights was Secretary Richardson's presentation of a Certificate of Partnership to Malden Mills CEO Aaron Feuerstein at the dedication of the plant's new, advanced cogeneration system.

  16. Food and environmental protection newsletter. V. 2, no. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-06-01

    This issue of the Newsletter highlights forthcoming events including a training workshop on {sup T}he application of quality control/assurance in pesticide residue analysis. Excerpt of the conference on `food irradiation `99 - the solution to food safety crisis` held in Washington, D.C. 12-14 April 1999 in also included in this issue. Status of existing co-ordinated and technical co-operation research projects is also summarized

  17. Nuclear power newsletter Vol. 3, no. 4, December 2006

    International Nuclear Information System (INIS)

    2006-12-01

    The topics presented in this newsletter are: The 1st Joint IAEA-EPRI Workshop on Modernization of Instrumentation and Control Systems in Nuclear Power Plants; Message from the Director of the Division of Nuclear Power; Nuclear power plant operation; Management system, infrastructure and training; International Project on Innovative Nuclear Reactors and Fuel Cycles; Technology developments and applications for advanced reactors; Planned meetings in 2007

  18. ROSSA newsletter - September 2014

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

    Caroline Sarmiento

    2014-09-01

    Sep 1, 2014 ... Marking 2014 as the Year of Agriculture and Food Security in Africa, the Canadian ... health. Through successive projects in Ekwendeni, in northern Malawi, researchers .... Bridging gender gaps with dairy goats and root crops.

  19. Nuclear data newsletter. No. 35

    International Nuclear Information System (INIS)

    2003-04-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and offline news concerning nuclear data libraries and data processing codes. It includes announcements on development activities of IAEA in the field of nuclear data collections and relevant computer codes and lists selected reports and documents on nuclear data as well as cooperating nuclear data service centres

  20. Nuclear Data Newsletter. No. 17

    International Nuclear Information System (INIS)

    1992-09-01

    This issue of the Nuclear Data Newsletter dated September 1992, gives information on the following topics: Data indexes and bibliographies, IAEA Nuclear Data Information System-on-line access, nuclear data processing computer codes, new data libraries, multigroup nuclear data, selected new publication on nuclear data, the network of nuclear data service centers which are all related to the activity of the Nuclear Data Section (NDS) of the IAEA

  1. Mutation breeding newsletter. No. 41

    International Nuclear Information System (INIS)

    1994-07-01

    This newsletter contains short descriptions of research methods for the use of radiation to induce mutations and facilitate plant breeding. This method is used to develop species of plants that can survive in harsh climates and thus provide a food supply for humans and animals. Some of the mutants discussed include a salt tolerant barley, a disease resistant shrub, a cold tolerant chickpea, a highly productive Canavalia virosa and productive tomato. Refs, figs and tabs

  2. Nuclear data newsletter. No. 21

    International Nuclear Information System (INIS)

    1995-07-01

    This issue of the Nuclear Data Newsletter dated July 1995 gives information on the following topics: data indexes and bibliographies, information about how access to NDIS could be done, new nuclear data libraries received including package of nine data libraries on neutron reactions, a list of selected reports and documents on nuclear data, a data base on Nuclear Data Standards for Nuclear Measurements. Conference announcements and addresses of the co-operating nuclear data service centers are included

  3. Nuclear data newsletter. No. 34

    International Nuclear Information System (INIS)

    2002-10-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and offline news concerning nuclear data libraries and data processing codes. It includes announcements on development activities of IAEA in the field of nuclear data collections and relevant computer codes and lists selected reports and documents on nuclear data as well as cooperating nuclear data service centres

  4. Nuclear data newsletter. No. 23

    International Nuclear Information System (INIS)

    1997-04-01

    This issue of the Nuclear Data Newsletter dated April 1997 gives information on the following topics: New nuclear data libraries received including package of eleven data libraries, Chart of nuclides, Conference announcements, Nuclear data handbooks, Selected reports and documents on nuclear data. The addresses of the co-operating nuclear data SERVICE centers are given. The method of accessing to NDIS via Internet (TCP/IP) and to open areas for FTP file transfer are explained

  5. Nuclear data newsletter. No.25

    International Nuclear Information System (INIS)

    1998-06-01

    The issue of the Nuclear Data Newsletter dated June 1998 gives information on the following topics: Computer code development, New data files and libraries, Major outcome of the NDS data development activity, Selected reports and documents on nuclear data, Chart of nuclides, Conference proceedings, Conference and meetings announcement, Forthcoming meetings held by NDS, Technical co-operation programme for 2001-2002, The address of the co-operating nuclear data service centres

  6. Ambiguities in the relationship between gonadal steroids and reproduction in axolotls (Ambystoma mexicanum).

    Science.gov (United States)

    Eisthen, Heather L; Krause, Brianne Chung

    2012-05-01

    Axolotls (Ambystoma mexicanum) are aquatic salamanders that are widely used in research. Axolotls have been bred in laboratories for nearly 150 years, yet little is known about the basic biology of reproduction in these animals. We investigated the effects of changing day length, time of year, and food availability on levels of circulating estradiol and androgens in adult female and male axolotls, respectively. In addition, we examined the effects of these variables on the mass of ovaries, oviducts, and eggs in females and on mass of testes in males relative to each individual's body weight, to calculate a form of gonadosomatic index (GSI). In both sexes, GSI was not correlated with levels of circulating steroids. In female axolotls, estradiol levels were influenced by food availability, changes in day length, and season, even when animals were held at a constant temperature and day length was decorrelated with calendar date. In addition, the mass of ovaries, oviducts, and eggs varied seasonally, peaking in the winter months and declining during the summer months, even though our animals were not breeding and shedding eggs. In males, levels of androgens appeared to vary independently of external conditions, but GSI varied dramatically with changes in day length. These results suggest that reproduction in axolotls may vary seasonally, as it does in many other ambystomid species, although both male and female axolotls are capable of reproducing several times each year. The physiological basis of this ability remains enigmatic, given the indications of seasonality contained in our data. Copyright © 2012 Elsevier Inc. All rights reserved.

  7. Musashi and Plasticity of Xenopus and Axolotl Spinal Cord Ependymal Cells

    Directory of Open Access Journals (Sweden)

    Ellen A. G. Chernoff

    2018-02-01

    Full Text Available The differentiated state of spinal cord ependymal cells in regeneration-competent amphibians varies between a constitutively active state in what is essentially a developing organism, the tadpole of the frog Xenopus laevis, and a quiescent, activatable state in a slowly growing adult salamander Ambystoma mexicanum, the Axolotl. Ependymal cells are epithelial in intact spinal cord of all vertebrates. After transection, body region ependymal epithelium in both Xenopus and the Axolotl disorganizes for regenerative outgrowth (gap replacement. Injury-reactive ependymal cells serve as a stem/progenitor cell population in regeneration and reconstruct the central canal. Expression patterns of mRNA and protein for the stem/progenitor cell-maintenance Notch signaling pathway mRNA-binding protein Musashi (msi change with life stage and regeneration competence. Msi-1 is missing (immunohistochemistry, or at very low levels (polymerase chain reaction, PCR, in both intact regeneration-competent adult Axolotl cord and intact non-regeneration-competent Xenopus tadpole (Nieuwkoop and Faber stage 62+, NF 62+. The critical correlation for successful regeneration is msi-1 expression/upregulation after injury in the ependymal outgrowth and stump-region ependymal cells. msi-1 and msi-2 isoforms were cloned for the Axolotl as well as previously unknown isoforms of Xenopus msi-2. Intact Xenopus spinal cord ependymal cells show a loss of msi-1 expression between regeneration-competent (NF 50–53 and non-regenerating stages (NF 62+ and in post-metamorphosis froglets, while msi-2 displays a lower molecular weight isoform in non-regenerating cord. In the Axolotl, embryos and juveniles maintain Msi-1 expression in the intact cord. In the adult Axolotl, Msi-1 is absent, but upregulates after injury. Msi-2 levels are more variable among Axolotl life stages: rising between late tailbud embryos and juveniles and decreasing in adult cord. Cultures of regeneration

  8. Musashi and Plasticity of Xenopus and Axolotl Spinal Cord Ependymal Cells

    Science.gov (United States)

    Chernoff, Ellen A. G.; Sato, Kazuna; Salfity, Hai V. N.; Sarria, Deborah A.; Belecky-Adams, Teri

    2018-01-01

    The differentiated state of spinal cord ependymal cells in regeneration-competent amphibians varies between a constitutively active state in what is essentially a developing organism, the tadpole of the frog Xenopus laevis, and a quiescent, activatable state in a slowly growing adult salamander Ambystoma mexicanum, the Axolotl. Ependymal cells are epithelial in intact spinal cord of all vertebrates. After transection, body region ependymal epithelium in both Xenopus and the Axolotl disorganizes for regenerative outgrowth (gap replacement). Injury-reactive ependymal cells serve as a stem/progenitor cell population in regeneration and reconstruct the central canal. Expression patterns of mRNA and protein for the stem/progenitor cell-maintenance Notch signaling pathway mRNA-binding protein Musashi (msi) change with life stage and regeneration competence. Msi-1 is missing (immunohistochemistry), or at very low levels (polymerase chain reaction, PCR), in both intact regeneration-competent adult Axolotl cord and intact non-regeneration-competent Xenopus tadpole (Nieuwkoop and Faber stage 62+, NF 62+). The critical correlation for successful regeneration is msi-1 expression/upregulation after injury in the ependymal outgrowth and stump-region ependymal cells. msi-1 and msi-2 isoforms were cloned for the Axolotl as well as previously unknown isoforms of Xenopus msi-2. Intact Xenopus spinal cord ependymal cells show a loss of msi-1 expression between regeneration-competent (NF 50–53) and non-regenerating stages (NF 62+) and in post-metamorphosis froglets, while msi-2 displays a lower molecular weight isoform in non-regenerating cord. In the Axolotl, embryos and juveniles maintain Msi-1 expression in the intact cord. In the adult Axolotl, Msi-1 is absent, but upregulates after injury. Msi-2 levels are more variable among Axolotl life stages: rising between late tailbud embryos and juveniles and decreasing in adult cord. Cultures of regeneration-competent Xenopus tadpole

  9. Esterases activity in the axolotl Ambystoma mexicanum exposed to chlorpyrifos and its implication to motor activity.

    Science.gov (United States)

    Robles-Mendoza, Cecilia; Zúñiga-Lagunes, Sebastian R; Ponce de León-Hill, Claudia A; Hernández-Soto, Jesús; Vanegas-Pérez, Cecilia

    2011-10-01

    The axolotl Ambystoma mexicanum is a neotenic salamander considered a good biological model due to its ability to regenerate limbs, tail, brain and heart cells. Nevertheless, severe reduction of A. mexicanum wild populations in the lacustrine area of Xochimilco, the natural habitat of the axolotl, could be related to several environmental pressures as the presence of organophosphate pesticides (OPPs), intensively applied in agricultural activities in Xochimilco. Thus the aim of this study was to evaluate the effect of environmentally realistic chlorpyrifos (CPF) concentrations, a OPP commonly used in this zone, on esterases activity (acetylcholinesterase and carboxylesterase) and bioconcentration of CPF and to relate them with the motor activity of A. mexicanum juveniles. Axolotls were exposed 48 h to 0.05 and 0.1mg CPF/L, and the responses were evaluated at the end of the CPF exposure. Results suggest that CPF is bioconcentrated into axolotls and that the CPF internal concentrations are related with the observed inhibition activity of AChE (>50%) and CbE (≈ 50%). CPF concentration responsible of the inhibition of the 50% of AChE activity (IC50) was estimated in 0.04 mg CPF/L; however IC50 for CbE activity was not possible to calculate since inhibition levels were lower than 50%, results that suggest a higher resistance of CbE enzymatic activity to CPF. However, motor activity was a more sensitive endpoint to CPF poisoning since time that axolotls spent active and walking, frequency and speed of swimming, frequency of prey attack were reduced >90% of control groups. The motor activity alterations in the axolotl could be related with the registered esterases inhibition. Thus important alterations on axolotls were identified even at short time and low concentrations of CPF exposure. Also, it was possible to link biochemical responses as esterases activity with higher levels of biological organization as behavior. This study provides tools for the regulation of the

  10. Soils newsletter. V. 7, no. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1984-07-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  11. Soils newsletter. V. 11, no. 1

    International Nuclear Information System (INIS)

    1988-07-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  12. Arms Control, Disarmament, and Peace Newsletters.

    Science.gov (United States)

    Atkins, Stephen

    1986-01-01

    Considers the research value of four types of newsletters on arms control, disarmament, and peace: direct-action, informational, scholarly, and single-issue. An annotated list of 58 newsletters includes those considered most significant of their type and recommended for library collections. (EM)

  13. Soils newsletter. V. 2, no. 2

    International Nuclear Information System (INIS)

    1979-10-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  14. Soils newsletter. V. 1, no. 1

    International Nuclear Information System (INIS)

    1978-04-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  15. Soils newsletter. V. 3, no. 1

    International Nuclear Information System (INIS)

    1980-04-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  16. Soils newsletter. V. 8, no. 1

    International Nuclear Information System (INIS)

    1985-01-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  17. Soils newsletter. V. 2, no. 1

    International Nuclear Information System (INIS)

    1979-04-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  18. Soils newsletter. V. 6, no. 2

    International Nuclear Information System (INIS)

    1983-12-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  19. Soils newsletter. V. 1, no. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1978-10-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  20. Soils newsletter. V. 1, no. 2

    International Nuclear Information System (INIS)

    1978-10-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  1. Soils newsletter. V. 11, no. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1988-07-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  2. Soils newsletter. V. 8, no. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-01-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  3. Soils newsletter. V. 6, no. 1

    International Nuclear Information System (INIS)

    1983-07-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  4. Soils newsletter. V. 7, no. 1

    International Nuclear Information System (INIS)

    1984-07-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  5. Soils newsletter. V. 2, no. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1979-04-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  6. Soils newsletter. V. 6, no. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1983-12-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  7. Soils newsletter. V. 5, no. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1982-12-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  8. Soils newsletter. V. 3, no. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1980-10-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  9. Soils newsletter. V. 4, no. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1981-10-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  10. Soils newsletter. V. 5, no. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1982-04-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  11. Soils newsletter. V. 1, no. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1978-04-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  12. Soils newsletter. V. 4, no. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1981-04-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  13. Soils newsletter. V. 3, no. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1980-04-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  14. Soils newsletter. V. 6, no. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1983-07-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  15. Soils newsletter. V. 2, no. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1979-10-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  16. Soils newsletter. V. 5, no. 2

    International Nuclear Information System (INIS)

    1982-12-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  17. Soils newsletter. V. 4, no. 1

    International Nuclear Information System (INIS)

    1981-04-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  18. Submillimeter Array (SMA) Newsletter August 2011

    OpenAIRE

    Blundell, Raymond

    2011-01-01

    Submillimeter Array (SMA) Newsletter August 2011 Blundell, Raymond Submillimeter Array Newsletter | Number 12 | August 2011 CONTENTS 1 From the Director SCIENCE HIGHLIGHTS: 2 Faint Submillimeter Sources behind Massive Lensing Clusters 5 Millimeter Imaging of the β Pictoris Debris Disk: Evidence for a Planetesimal Belt 7 Physical Properties of the Circumnuclear Starburst Ring in the Barred Galaxy NGC1097 TECHNICAL HIGHLIGHTS: 9 ...

  19. Soils newsletter. V. 10, no. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-12-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter.

  20. Freedom of Speech Newsletter, September, 1975.

    Science.gov (United States)

    Allen, Winfred G., Jr., Ed.

    The Freedom of Speech Newsletter is the communication medium for the Freedom of Speech Interest Group of the Western Speech Communication Association. The newsletter contains such features as a statement of concern by the National Ad Hoc Committee Against Censorship; Reticence and Free Speech, an article by James F. Vickrey discussing the subtle…

  1. Soils newsletter. V. 4, no. 2

    International Nuclear Information System (INIS)

    1981-10-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  2. Wind Program Newsletter, May 2016 Edition

    Energy Technology Data Exchange (ETDEWEB)

    2016-05-01

    The U.S. Department of Energy Wind Program Newsletter provides wind industry stakeholders and the public with information about the Wind Program R&D efforts funded by the Wind and Water Power Technologies Office. The newsletter comes out twice a year and is sent electronically to subscribers and distributed in hard copy to conference attendees.

  3. Soils newsletter. V. 5, no. 1

    International Nuclear Information System (INIS)

    1982-04-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  4. Soils newsletter. V. 10, no. 2

    International Nuclear Information System (INIS)

    1987-12-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  5. Soils newsletter. V. 3, no. 2

    International Nuclear Information System (INIS)

    1980-10-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  6. Soils newsletter. V. 23, no. 1

    International Nuclear Information System (INIS)

    2000-06-01

    This newsletter disseminates information arising out of international cooperative efforts in the use of nuclear techniques for research into soil fertility, fertilizer usage, plant nutrition, soil moisture and irrigation. Reports of the coordinated research programmes are also highlighted in this newsletter

  7. A Canadian recycling newsletter. Final phase

    Energy Technology Data Exchange (ETDEWEB)

    1979-01-01

    A study was performed to publish a Canadian recycling newsletter, to be distributed gradually throughout the country. This report reviews the format, data collection procedures, printing, mailing, advertising, marketing, promotion, and finances of the publication. In the final phase of the study, publication and distribution was to extend to various segments of the secondary materials industry. This would include publishing articles and industry briefs related to the ferrous and non-ferrous metals industry. The publication would be increased to 12 pages and would attempt to become financially self-sufficient. In this phase, the newsletter became firmly established as the voice of Canada's secondary materials market, especially waste paper, where the price guide published by the newsletter became a sort of recognized standard. It was found that financially independent operation was achieved within one year. The newsletter was published on schedule and reader response was positive. Examples of the newsletter, called Recoup, are included in the appendix.

  8. Axolotl/Bichos Raros Crónica

    Directory of Open Access Journals (Sweden)

    Susana Chávez-Silverman

    2012-11-01

    Full Text Available In this crónica, I pay homage (and talk back to! one of my favourite authors, Julio Cortázar, who I had the great privilege and pleasure of befriending in 1980, when he was a visiting professor at UC-Berkeley. I have been obsessed with time-travel, doubling, and interstitiality since I was very young; even the most casual Cortázar reader (if such a thing is possible will immediately recognise these as recurrent themes in his work. Here, faced with several actual axolotl in a Buenos Aires aquarium, I explore and comment on Cortázar’s strangely mesmerising meditation on identity and transformation. My personal connection is (as in much of my writing concerned with aspects of gender and sexuality suppressed or (more likely ignored in Cortázar’s version. I identify, too, with a poignant in-betweenness and ambiguity I read in the figure of the axolotl—and in the work of Cortázar and Alejandra Pizarnik.

  9. EDIN-USVI Clean Energy Quarterly: Volume 2, Issue 1, June 2012 (Newsletter)

    Energy Technology Data Exchange (ETDEWEB)

    2012-06-01

    This quarterly newsletter provides timely news and information about the plans and progress of the Energy Development in Island Nations-U.S. Virgin Islands pilot project, including significant events and milestones, work undertaken by each of the working groups, and project-related technology deployment efforts.

  10. EDIN-USVI Clean Energy Quarterly: Volume 1, Issue 3, September 2011 (Newsletter)

    Energy Technology Data Exchange (ETDEWEB)

    2011-09-01

    This quarterly newsletter provides timely news and information about the plans and progress of the Energy Development in Island Nations-U.S. Virgin Islands pilot project, including significant events and milestones, work undertaken by each of the five working groups, and project-related renewable energy and energy efficiency educational outreach and technology deployment efforts.

  11. ITER ITA newsletter No. 32, July 2006

    International Nuclear Information System (INIS)

    2006-07-01

    This issue of ITER ITA (ITER transitional Arrangements) newsletter contains concise information about ITER related activities. The ITER Parties, at their Ministerial Meeting in May 2006 in Brussels, initialled the draft text of the prospective Agreement on the Establishment of the ITER International Fusion Energy Organization for the Joint Implementation of the ITER Project as well as the draft text of the Agreement on the Privileges and Immunities of the ITER International Fusion Energy Organisation for the Joint Implementation of the ITER Project. The Parties have requested that the IAEA Director General serve as Depositary of the two aforementioned Agreements and that the IAEA establish a Trust Fund to Support Common Expenditures under the ITER Transitional Arrangements, pending entry into force of the prospective Agreement on the Establishment of the ITER International Fusion Energy Organization for the Joint Implementation of the ITER Project. At its June Meeting in Vienna, the IAEA Board of Governors approved these requests. There is also information about the Tenth Meeting of the International Tokamak Physics Activity (ITPA) Topical Group (TG) on Diagnostics was held at the Kurchatov Institute, Moscow, from 10-14 April 2006

  12. Nuclear data newsletter. No. 1

    International Nuclear Information System (INIS)

    1979-09-01

    The main function of the IAEA Nuclear Data Section (NDS) is to serve as an international data centre for nuclear data required for the development of nuclear sciences and technology for peaceful purposes. The centre coordinates the production and compilation of needed nuclear data and distributes these data on a cost free basis to the Member Countries, particularly developing countries. This Nuclear Data Newsletter was created to improve the flow of nuclear data information from the IAEA nuclear data center to the continuously increasing number of its customers, and is planned to be issued as required at irregular intervals

  13. Antarctic Meteorite Newsletter. Volume 22

    Science.gov (United States)

    Satterwhite, Cecilia (Editor); Lindstrom, Marilyn (Editor)

    1999-01-01

    This Newsletter Contains Classifications of 143 New Meteorites from the 1997 ANSMET Collection. Descriptions are given for 6 meteorites;2 eucrites, and 4 ordinary chondrites. We don't expect much excitement from the rest of the 1997 collection. JSC has examined another 100 meteorites to send to the Smithsonian for classification and they appear to be more of the same LL5 shower. However, past experience tells us that there will be some treasures hidden in the remaining samples. Hope rings eternal, but we can't wait to see the 1998 collection described below.

  14. ITER CTA newsletter. No. 10

    International Nuclear Information System (INIS)

    2002-07-01

    This ITER CTA newsletter issue comprises the ITER backgrounder, which was approved as an official document by the participants in the Negotiations on the ITER Implementation agreement at their fourth meeting, held in Cadarache from 4-6 June 2002, and information about two ITER meetings: one is the third meeting of the ITER parties' designated Safety Representatives, which took place in Cadarache, France from 6-7 June 2002, and the other is the second meeting of the International Tokamak Physics Activity (ITPA) topical group on diagnostics, which was held at General Atomics, San Diego, USA, from 4-8 March 2002

  15. Field Verification Project for Small Wind Turbines, Quarterly Report: April - June 2001; 2nd Quarter, Issue No.5

    Energy Technology Data Exchange (ETDEWEB)

    2002-04-01

    This newsletter provides a brief overview of the Field Verification Project for Small Wind Turbines conducted out of the NWTC and a description of current activities. The newsletter also contains case studies of current projects.

  16. Field Verification Project for Small Wind Turbines Quarterly Report; July-September 2001, 3rd Quarter, Issue#6

    Energy Technology Data Exchange (ETDEWEB)

    2003-04-01

    This newsletter provides a brief overview of the Field Verification Project for Small Wind Turbines conducted at the NWTC and a description of current activities. The newsletter also contains case studies of current projects.

  17. SSDL newsletter. No. 40

    International Nuclear Information System (INIS)

    1999-01-01

    The first article discusses the Code of Practice IAEA TRS-381 complements and extends the IAEA TRS-277. It describes procedures that my be used to calibrate plane-parallel chambers against air kerma or absorbed dose to water standards at 60 Co gamma ray energy, in order to obtain the absorbed-dose-to-air chamber factor (N D,air ) or the absorbed dose to water chamber factor. This Code of Practice also updates some of the data and concepts presented in TRS-277. Soon after the publication of this report, the Agency has launched a Co-ordinated Research Project (CRP) to ascertain that the Code of Practice meets the highest scientific standards and yields the most accurate results available today. The second article is the report of the 8th SSDL Scientific Committee meeting held during 5-9 October 1998

  18. Organophosphorus pesticides effect on early stages of the axolotl Ambystoma mexicanum (Amphibia: Caudata).

    Science.gov (United States)

    Robles-Mendoza, C; García-Basilio, C; Cram-Heydrich, S; Hernández-Quiroz, M; Vanegas-Pérez, C

    2009-02-01

    Ambystoma mexicanum is an endemic salamander of Xochimilco, a wetland of the basin of Mexico valley. Nowadays, axolotl populations are decreasing due environmental stressors. Particularly, studies about organophosphorus pesticides (OPPs; i.e. chlorpyrifos and malathion) toxicity are of great importance due to their intensive use in agricultural activities in Xochimilco. Thus, the aim of this study was to evaluate under controlled conditions the toxicity of chlorpyrifos (CPF) and malathion (MLT) on embryos and larvae (stage 44 and 54) of A. mexicanum. Embryos and larvae were exposure 96h from 0.5 to 3mg CPFL(-1) and from 10 to 30mg MLTL(-1) in independent tests. Embryos at the end of this period were maintained 9d without pesticide in order to identify possible recuperation. Differences obtained in mortality, hatching success, development, morphological abnormalities, behaviour and activity, suggest that toxicity of CPF and MLT differs in embryos and larval stages. Embryos were less sensitive to OPPs acute exposure than axolotl larvae; additionally, toxicity of CPF in larval stages was greater than MLT. On the other hand, data obtained in axolotl embryos during the period of recuperation to CPF in particular as delay and inhibition of development, malformations and success of hatching, indicated that these responses turned out more sensitive than mortality. This study allowed to identify the toxicological potential of OPPs on early developmental stages of A. mexicanum and it is a valuable contribution for the future management of the axolotl wild population.

  19. Hyperbaric oxygen therapy in a true regenerative environment, the regenerating limb of the axolotl

    DEFF Research Database (Denmark)

    Hansen, Kasper; Lauridsen, Henrik; Pedersen, Michael

    2012-01-01

    vertebrates such as the urodele amphibians (salamanders and newts), are excellent animal models for regenerative studies. The iconic Mexican axolotl (Ambystoma mexicanum) is capable of regenerating whole limbs, tail, jaw, and many inner organs, by dedifferentiation of cells to form a blastema (collection...

  20. Highly efficient targeted mutagenesis in axolotl using Cas9 RNA-guided nuclease

    Science.gov (United States)

    Flowers, G. Parker; Timberlake, Andrew T.; Mclean, Kaitlin C.; Monaghan, James R.; Crews, Craig M.

    2014-01-01

    Among tetrapods, only urodele salamanders, such as the axolotl Ambystoma mexicanum, can completely regenerate limbs as adults. The mystery of why salamanders, but not other animals, possess this ability has for generations captivated scientists seeking to induce this phenomenon in other vertebrates. Although many recent advances in molecular biology have allowed limb regeneration and tissue repair in the axolotl to be investigated in increasing detail, the molecular toolkit for the study of this process has been limited. Here, we report that the CRISPR-Cas9 RNA-guided nuclease system can efficiently create mutations at targeted sites within the axolotl genome. We identify individual animals treated with RNA-guided nucleases that have mutation frequencies close to 100% at targeted sites. We employ this technique to completely functionally ablate EGFP expression in transgenic animals and recapitulate developmental phenotypes produced by loss of the conserved gene brachyury. Thus, this advance allows a reverse genetic approach in the axolotl and will undoubtedly provide invaluable insight into the mechanisms of salamanders' unique regenerative ability. PMID:24764077

  1. Gallium nitrate: effects on cartilage during limb regeneration in the axolotl, Ambystoma mexicanum.

    Science.gov (United States)

    Tassava, Roy A; Mendenhall, Luciara; Apseloff, Glen; Gerber, Nicholas

    2002-09-01

    Gallium nitrate, a drug shown to have efficacy in Paget's disease of bone, hypercalcemia of malignancy, and a variety of experimental autoimmune diseases, also inhibits the growth of some types of cancer. We examined dose and timing of administration of gallium nitrate on limb regeneration in the Mexican axolotl, Ambystoma mexicanum. Administered by intraperitoneal injection, gallium nitrate inhibited limb regeneration in a dose-dependent manner. Gallium nitrate initially suppressed epithelial wound healing and subsequently distorted both anterior-posterior and proximo-distal chondrogenic patterns. Gallium nitrate given at three days after amputation severely inhibited regeneration at high doses (6.25 mg/axolotl) and altered the normal patterning of the regenerates at low doses (3.75 mg/axolotl). Administration of 6.25 mg of gallium nitrate at four or 14 days prior to amputation also inhibited regeneration. In amputated limbs of gallium-treated axolotls, the chondrocytes were lost from inside the radius/ulna. Limbs that regenerated after gallium treatment was terminated showed blastema formation preferentially over the ulna. New cartilage of the regenerate often attached to the sides of the existing radius/ulna proximally into the stump and less so to the distal cut ends. J. Exp. Zool. 293:384-394, 2002. Copyright 2002 Wiley-Liss, Inc.

  2. Role of Myofibril-Inducing RNA in cardiac TnT expression in developing Mexican axolotl

    Science.gov (United States)

    Sferrazza, Gian-Franco; Zhang, Chi; Jia, Pingping; Lemanski, Sharon L.; Athauda, Gagani; Stassi, Alyssa; Halager, Kristine; Maier, Jennifer A.; Rueda-de-Leon, Elena; Gupta, Amit; Dube, Syamalima; Huang, Xupei; Prentice, Howard M.; Dube, Dipak K.; Lemanski, Larry F.

    2007-01-01

    The Mexican axolotl, Ambystoma mexicanum, has been a useful animal model to study heart development and cardiac myofibrillogenesis. A naturally-occurring recessive mutant, gene “c”, for cardiac non-function in the Mexican axolotl causes a failure of myofibrillogenesis due to a lack of tropomyosin expression in homozygous mutant (c/c) embryonic hearts.. Myofibril-Inducing RNA (MIR) rescues mutant hearts in vitro by promoting tropomyosin expression and myofibril formation thereafter. We have studied the effect of MIR on the expression of various isoforms of cardiac Troponin-T (cTnT), a component of the thin filament that binds with tropomyosin. Four alternatively spliced cTnT isoforms have been characterized from developing axolotl heart. The expression of various cTnT isoforms in normal, mutant, and mutant hearts corrected with MIR, is evaluated by real-time RT-PCR using isoform specific primer pairs; MIR affects the total transcription as well as the splicing of the cTnT in axolotl heart PMID:17408593

  3. Multiple regeneration from axolotl limb stumps bearing cross-transplanted minced muscle regenerates : brief note

    NARCIS (Netherlands)

    Carlson, Bruce M.

    Flexor and extensor muscles in the upper arms of axolotls were minced and cross-transplanted. The limbs were amputated 5 and 30 days after mincing. In each experiment a high percentage of the regenerates consisted of multiple limbs. This demonstrates that the morphogenetic information which produces

  4. Identification of Mutant Genes and Introgressed Tiger Salamander DNA in the Laboratory Axolotl, Ambystoma mexicanum.

    Science.gov (United States)

    Woodcock, M Ryan; Vaughn-Wolfe, Jennifer; Elias, Alexandra; Kump, D Kevin; Kendall, Katharina Denise; Timoshevskaya, Nataliya; Timoshevskiy, Vladimir; Perry, Dustin W; Smith, Jeramiah J; Spiewak, Jessica E; Parichy, David M; Voss, S Randal

    2017-01-31

    The molecular genetic toolkit of the Mexican axolotl, a classic model organism, has matured to the point where it is now possible to identify genes for mutant phenotypes. We used a positional cloning-candidate gene approach to identify molecular bases for two historic axolotl pigment phenotypes: white and albino. White (d/d) mutants have defects in pigment cell morphogenesis and differentiation, whereas albino (a/a) mutants lack melanin. We identified in white mutants a transcriptional defect in endothelin 3 (edn3), encoding a peptide factor that promotes pigment cell migration and differentiation in other vertebrates. Transgenic restoration of Edn3 expression rescued the homozygous white mutant phenotype. We mapped the albino locus to tyrosinase (tyr) and identified polymorphisms shared between the albino allele (tyr a ) and tyr alleles in a Minnesota population of tiger salamanders from which the albino trait was introgressed. tyr a has a 142 bp deletion and similar engineered alleles recapitulated the albino phenotype. Finally, we show that historical introgression of tyr a significantly altered genomic composition of the laboratory axolotl, yielding a distinct, hybrid strain of ambystomatid salamander. Our results demonstrate the feasibility of identifying genes for traits in the laboratory Mexican axolotl.

  5. Courtship Pheromone Use in a Model Urodele, the Mexican Axolotl (Ambystoma mexicanum).

    Science.gov (United States)

    Maex, Margo; Van Bocxlaer, Ines; Mortier, Anneleen; Proost, Paul; Bossuyt, Franky

    2016-02-04

    Sex pheromones have been shown to constitute a crucial aspect of salamander reproduction. Until now, courtship pheromones of Salamandridae and Plethodontidae have been intensively studied, but information on chemical communication in other urodelan families is essentially lacking. The axolotl (Ambystoma mexicanum, Ambystomatidae) has a courtship display that suggests a key role for chemical communication in the orchestration of its sexual behavior, but no sex pheromones have yet been characterized from this species. Here we combined whole transcriptome analyses of the male cloaca with proteomic analyses of water in which axolotls were allowed to court to show that male axolotls secrete multiple ca. 20 kDa glycosylated sodefrin precursor-like factor (SPF) proteins during courtship. In combination with phylogenetic analyses, our data show that the male cloaca essentially secretes a courtship-specific clade of SPF proteins that is orthologous to salamandrid courtship pheromones. In addition, we identified an SPF protein for which no orthologs have been described from other salamanders so far. Overall, our study advocates a central role for SPF proteins during the courtship display of axolotls and adds knowledge on pheromone use in a previously unexplored deep evolutionary branch of salamander evolution.

  6. Identification of Conserved and Novel MicroRNAs during Tail Regeneration in the Mexican Axolotl

    Directory of Open Access Journals (Sweden)

    Micah D. Gearhart

    2015-09-01

    Full Text Available The Mexican axolotl salamander (Ambystoma mexicanum is one member of a select group of vertebrate animals that have retained the amazing ability to regenerate multiple body parts. In addition to being an important model system for regeneration, the axolotl has also contributed extensively to studies of basic development. While many genes known to play key roles during development have now been implicated in various forms of regeneration, much of the regulatory apparatus controlling the underlying molecular circuitry remains unknown. In recent years, microRNAs have been identified as key regulators of gene expression during development, in many diseases and also, increasingly, in regeneration. Here, we have used deep sequencing combined with qRT-PCR to undertake a comprehensive identification of microRNAs involved in regulating regeneration in the axolotl. Specifically, among the microRNAs that we have found to be expressed in axolotl tissues, we have identified 4564 microRNA families known to be widely conserved among vertebrates, as well as 59,811 reads of putative novel microRNAs. These findings support the hypothesis that microRNAs play key roles in managing the precise spatial and temporal patterns of gene expression that ensures the correct regeneration of missing tissues.

  7. MRI tracking of SPIO labelled stem cells in a true regenerative environment, the regenerating limb of the axolotl

    DEFF Research Database (Denmark)

    Lauridsen, Henrik; Foldager, Casper Bindzus; Hagensen, Mette

    are generally restricted by their limited regenerative potential. Conversely, excellent animal models for regenerative studies exist in lower vertebrates such as the urodele amphibians (salamanders and newts), exemplified in the iconic Mexican axolotl (Ambystoma mexicanum) capable of regenerating whole limbs...

  8. SSDL newsletter. No. 25

    International Nuclear Information System (INIS)

    1986-10-01

    In April 1976 the IAEA and the WHO concluded a Working Arrangement concerning the establishment and operation of a network of Secondary Standard Dosimetry Laboratories, based on a relationship agreement between the two organizations of 1959. This Working Arrangement was the outcome of rather lengthy consultations on the subject which rooted in recommendations of an experts' meeting on SSDL Activities, held in Rio de Janeiro 1974, and which put the bulk of responsibility for running the network on WHO. In particular, it was agreed then that WHO would provide the secretariat for the Network and be responsible for the SSDL Advisory Group of experts, the terms of reference of which were laid down in a separate document. After about ten years of operation of the SSDL Network it was felt that revision of the Working Arrangement should be considered, taking care of the actual involvement of the two organizations in the project and providing a more fairly balanced share of responsibilities between the IAEA and WHO secretaries of the Network. The new Arrangement was drafted during 1985 and signed by the two Directors General in October/November 1985. Upon recommendation of an SSDL Advisory Group which met in November 1984 the Directors General of IAEA and WHO appointed 6 scientists as members of a standing SSDL Scientific Committee. The appointment is for a period of three years. In its terms of reference the functions of this Committee are defined as follows: to provide technical advice to the Directors General of the IAEA and WHO regarding the programme of work of the IAEA/WHO Network of Secondary Standard Dosimetry Laboratories; to assist the Network Secretariat with scientific advice and to regularly review the work undertaken by members of the SSDL Network; to make recommendations on the techniques for carrying out intercomparisons between SSDLs; to advise and make recommendations on the techniques for establishing and maintaining traceability to the Primary Standard

  9. Nuclear data newsletter, No. 48, September 2009

    International Nuclear Information System (INIS)

    2009-09-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and database news concerning nuclear data libraries, computer codes and coordinated research projects and lists selected charts, reports and documents on nuclear data. Further it contains meeting reports of the IAEA Consultants Meeting on Phase space Database for External Beam Radiotherapy, 26-29 May 2009, the Technical Meeting of the International Network of Nuclear Reaction Data Centres, 25-26 May 2009, the EXFOR Editor Workshop, 27-29 May 2009, the 3rd Research Coordination Meeting on Development of a Reference Nuclear Database for Ion Beam Analysis, 27-30 April 2009, the IAEA/ICTP Workshop on A and M Data for Fusion Applications, Trieste, Italy, 20-30 April 2009, the 2nd Research Coordination Meeting of the MANREAD Coordinated Research Project, 31 March - 3 April 2009, the Consultants Meeting on International Database for Irradiated Graphite, 25-26 March 2009, the Technical Meeting of International Network of Nuclear Structure and Decay Data Evaluators, 23-27 March 2009, the Consultants Meeting on Spallation Reations, 12-13 March 2009, the 2nd Research Coordination Meeting on Data for Surface Composition Dynamics Relevant to Erosion Processes, 11-13 March 2009, the 3rd Research Coordination Meeting on Atomic Data for Heavy Element Impurities in Fusion Reactors, 4-6 March 2009

  10. Plant breeding and genetics newsletter. No. 11

    International Nuclear Information System (INIS)

    2003-07-01

    Implementation of a new CRP on Physical mapping technologies for the identification and characterization of mutated genes contributing to crop quality, organization of mutant germplasm database and repository, implementation of new TC projects and activation of work on molecular characterization of Musa putative germplasm as well as sequencing of BAC clones were the major activities of our sub-Programme on Plant Breeding and Genetics during the last six months. A lot of work has been concentrated on organizing a mutant germplasm repository. The first collections of rice and linseed mutants have already arrived and their descriptions have been introduced into the mutated germplasm database. We found this activity especially important to stimulate exchange of crop germplasm among plant breeders. Similarly there is an urgent need to collect mutants of various crops as necessary material for functional genomics and germplasm enhancement. Nevertheless, many crop research institutes are initiating large-scale mutation programmes with the use of their own plant material. To help them in selecting the mutagen, doses and mutation treatment procedure, we published the third issue of Mutation Breeding Newsletter Index of No. 21-44. The Index is also available through our website http://www.iaea.org/programmes/nafa/d2/index.html. The numerous requests for issues of the Mutation Breeding Newsletter already received from various countries indicate the value of this 80-page index for plant breeders and research institutes. We were invited to present the activities, achievements and trends of our sub-Programme at two very important, international meetings: The International Conference on the Status of Plant and Animal Genome Research, known as the Plant and Animal Genome (PAG XI), and The International Congress on 'In the Wake of the Double Helix - From the Green Revolution to the Gene Revolution'. At this last meeting, an initiative was taken to organize the Crop Root Research

  11. Plant breeding and genetics newsletter. No. 10

    International Nuclear Information System (INIS)

    2003-01-01

    The most important event related to the activity of the Plant Breeding and Genetics sub-programme in the past six months was the 2nd FAO/IAEA Interregional Training Course on 'Mutant Germplasm Characterization using Molecular Markers' which was held at Seibersdorf, 4-29 November 2002. In addition to basic molecular and marker techniques, which were also a subject of the first training course last year, fluorescence in situ hybridisation methods were included in the teaching and demonstration programme. As we informed you in the last edition of this Newsletter, a laboratory manual was published with detailed protocols on molecular markers techniques entitled 'Mutant germplasm characterization using molecular markers. A Manual'. (IAEA Training Course Series No. 19). (available for free distribution under conditions provided on page 11 of this Newsletter). We have also finished editing a book on 'Doubled haploid production in crop plants. A Manual.' This book was prepared in close collaboration with EU COST 851 activities. Ken Kasha (Canada), Brian Forster (UK) and lwona Szarejko (Poland) helped to edit more than 40 protocols for doubled haploid production in at least 23 crop species. The preparation of this manual reflects our our interest in the development and application of this technology for crop improvement. Two CRPs and numerous Technical Co-operation projects greatly contributed to the development of doubled haploid methods and also to implementation of this technology in crop improvement programmes of many countries. Numerous other important activities have been undertaken by the Plant Breeding and Genetics sub-programme during the last 6 months. A consultants meeting on 'Low cost technology in plant tissue culture' was held in Vienna and its results will be summarized in the form of an IAEA-TECDOC which is now in the final stage of preparation. In addition to the implementation of five Co-ordinated Research Projects, nine workshops and national or regional

  12. Proteomic analysis of blastema formation in regenerating axolotl limbs

    Directory of Open Access Journals (Sweden)

    Nye Holly LD

    2009-11-01

    Full Text Available Abstract Background Following amputation, urodele salamander limbs reprogram somatic cells to form a blastema that self-organizes into the missing limb parts to restore the structure and function of the limb. To help understand the molecular basis of blastema formation, we used quantitative label-free liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS-based methods to analyze changes in the proteome that occurred 1, 4 and 7 days post amputation (dpa through the mid-tibia/fibula of axolotl hind limbs. Results We identified 309 unique proteins with significant fold change relative to controls (0 dpa, representing 10 biological process categories: (1 signaling, (2 Ca2+ binding and translocation, (3 transcription, (4 translation, (5 cytoskeleton, (6 extracellular matrix (ECM, (7 metabolism, (8 cell protection, (9 degradation, and (10 cell cycle. In all, 43 proteins exhibited exceptionally high fold changes. Of these, the ecotropic viral integrative factor 5 (EVI5, a cell cycle-related oncoprotein that prevents cells from entering the mitotic phase of the cell cycle prematurely, was of special interest because its fold change was exceptionally high throughout blastema formation. Conclusion Our data were consistent with previous studies indicating the importance of inositol triphosphate and Ca2+ signaling in initiating the ECM and cytoskeletal remodeling characteristic of histolysis and cell dedifferentiation. In addition, the data suggested that blastema formation requires several mechanisms to avoid apoptosis, including reduced metabolism, differential regulation of proapoptotic and antiapoptotic proteins, and initiation of an unfolded protein response (UPR. Since there is virtually no mitosis during blastema formation, we propose that high levels of EVI5 function to arrest dedifferentiated cells somewhere in the G1/S/G2 phases of the cell cycle until they have accumulated under the wound epidermis and enter mitosis in response to

  13. Animal production and health newsletter. No. 26

    International Nuclear Information System (INIS)

    1997-06-01

    This issue of the newsletter highlights coordinated research programs in animal diseases including ELISA and RIA techniques in reproductive studies. Announcement of staff changes and forthcoming events are also covered

  14. ITER EDA newsletter. V. 8, no. 3

    International Nuclear Information System (INIS)

    1999-03-01

    This newsletter contains reports on: 'The ITER management advisory committee (MAC) meeting in Cadarache' and on 'ITER technical advisory committee meeting at Garching'. It contains photos of the participants of both meetings

  15. Animal production and health newsletter. No. 39

    International Nuclear Information System (INIS)

    2004-01-01

    In addition to highlights of research coordination meetings, training events and announcements of upcoming events, this issue of the Newsletter carries editorial note regarding the potential of biotechnology in animal health and production for developing countries

  16. ITER EDA newsletter. V. 7, no. 7

    International Nuclear Information System (INIS)

    1998-07-01

    This newsletter contains the articles: 'Extraordinary ITER council meeting', 'ITER EDA final safety meeting' and 'Summary report of the 3rd combined workshop of the ITER confinement and transport and ITER confinement database and modeling expert groups'

  17. TASCC newsletter volume 9 no. 6

    International Nuclear Information System (INIS)

    Thomson, L.

    1995-06-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this June issue of TASCC is an update of the facility, TASCC workshop on international success and a listing of Junes's experiments. 1 fig

  18. Animal production and health newsletter. No. 23

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-01-01

    The Newsletter presents the staffing, past and forthcoming workshops, status of the existing coordinated research programmes in the area of application of nuclear and biotechnology techniques in animal production and health.

  19. TASCC newsletter volume 6 no. 11

    International Nuclear Information System (INIS)

    Thomson, L.

    1992-01-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this issue is a report on Canadians at the Eurogam spectrometer, cyclotron beam report, facility report and operating record, a listing of experiments conducted

  20. ITER EDA newsletter. V. 9, no. 6

    International Nuclear Information System (INIS)

    2000-06-01

    This newsletter contains the reports of the twelfth meeting of the ITER physics expert group on diagnostics and the 14. international conference on plasma-surface interactions in controlled fusion devices. Individual abstracts have been prepared

  1. Soils newsletter. V. 19, no. 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-01

    The Newsletter announces meetings, training programs and short communications on coordinated research programs in soil fertility and crop production. The training courses mainly deal with application of nuclear techniques in nitrogen fixation and efficient use of fertilizers.

  2. TASCC newsletter volume 5 no. 5

    International Nuclear Information System (INIS)

    Thomson, L.

    1991-05-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this May issue is information on a workshop for material science studies, a facility report and operating record and the experiments conducted. 1 fig

  3. Animal production and health newsletter. No. 39

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-01-01

    In addition to highlights of research coordination meetings, training events and announcements of upcoming events, this issue of the Newsletter carries editorial note regarding the potential of biotechnology in animal health and production for developing countries.

  4. NITRD NewsLetter - July 2016

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — Welcome to this first issue of NITRD Leads IT, a quarterly newsletter of the Networking and Information Technology Research and Development (NITRD) Program. We...

  5. Soils newsletter. V. 19, no. 1

    International Nuclear Information System (INIS)

    1996-07-01

    The Newsletter announces meetings, training programs and short communications on coordinated research programs in soil fertility and crop production. The training courses mainly deal with application of nuclear techniques in nitrogen fixation and efficient use of fertilizers

  6. Nuclear power newsletter Vol. 2, no. 2

    International Nuclear Information System (INIS)

    2005-06-01

    The main topics in the newsletter are: International Ministerial Conference 'Nuclear Power for the 21st Century 'NPP operating performance and life cycle management; improving human performance quality and technical infrastructure; and technology development and applications for advanced reactors

  7. Animal production and health newsletter. No. 26

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-06-01

    This issue of the newsletter highlights coordinated research programs in animal diseases including ELISA and RIA techniques in reproductive studies. Announcement of staff changes and forthcoming events are also covered.

  8. Animal production and health newsletter. No. 24

    International Nuclear Information System (INIS)

    1996-07-01

    The Newsletter announces meetings and training programs in animal husbandry and animal health related activities undertaken by the IAEA. Short communications on coordinated research programs in animal production and health are included

  9. Animal production and health newsletter. No. 24

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-07-01

    The Newsletter announces meetings and training programs in animal husbandry and animal health related activities undertaken by the IAEA. Short communications on coordinated research programs in animal production and health are included.

  10. ITER EDA Newsletter. V.3, no.4

    International Nuclear Information System (INIS)

    1994-04-01

    This ITER EDA Newsletter issue contains a report on the fifth meeting of the ITER Management Advisory Committee and a summary of a magnet and safety technical meeting held at Naka, February 22-25, 1994

  11. ITER EDA newsletter. V. 8, no. 8

    International Nuclear Information System (INIS)

    1999-08-01

    This ITER EDA newsletter reports on the programme directors meeting of 28-29 July 1999, the Snowmass Fusion Summer Study Group workshop and the ITER Management Advisory Committee meeting in Garching. Individual abstracts are prepared for the 3 meetings

  12. NITRD NewsLetter - October 2016

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — Welcome to the second issue of NITRD Leads IT, a quarterly newsletter of the Networking and Information Technology Research and Development (NITRD) Program. I...

  13. ITER EDA newsletter. V. 9, no. 2

    International Nuclear Information System (INIS)

    2000-02-01

    This ITER EDA Newsletter reports on the seventh ITER technical meeting on safety and environment and contains the executive summary of the eleventh ITER scrape-off layer and divertor physics expert group meeting. Individual abstracts have been prepared

  14. Soils newsletter. V. 19, no. 2

    International Nuclear Information System (INIS)

    1996-12-01

    The Newsletter announces meetings, training programs and short communications on coordinated research programs in soil fertility and crop production. The training courses mainly deal with application of nuclear techniques in nitrogen fixation and efficient use of fertilizers

  15. ITER EDA newsletter. V. 2, no. 11

    International Nuclear Information System (INIS)

    1993-11-01

    This issue of the ITER EDA (Engineering Design Activities) Newsletter contains an ITER EDA Status Report, and a report on the Fourth International Fusion Neutronics Workshop at the University of California, Los Angeles Campus, October 20-21, 1993

  16. TASCC newsletter volume 6 no. 6

    International Nuclear Information System (INIS)

    Thomson, L.

    1992-06-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this June issue is a report on operator training, operating record and facility report and a listing of experiments conducted in June

  17. ITER EDA newsletter. V. 6, no. 12

    International Nuclear Information System (INIS)

    1997-12-01

    This issue of the ITER Newsletter contains summary reports (i) on the Sixth ITER Technical Meeting on Safety and Environment and (ii) on JAERI's Annual Public Seminar on Fusion Research and Development

  18. Animal production and health newsletter. No. 23

    International Nuclear Information System (INIS)

    1996-01-01

    The Newsletter presents the staffing, past and forthcoming workshops, status of the existing coordinated research programmes in the area of application of nuclear and biotechnology techniques in animal production and health

  19. NITRD NewsLetter - October 2017

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — Welcome to the October 2017 issue of the NITRD Leads IT quarterly newsletter of the Networking and Information Technology Research and Development Program. When we...

  20. Nuclear data newsletter. No. 22

    International Nuclear Information System (INIS)

    1996-11-01

    This issue of the Nuclear Data Newsletter dated November 1996 gives information on the following topics: Online nuclear data service, Fendl summary, Fendl Benchmarks, Information about how access to Fendl files could be done, Information about the IAEA Nuclear Data Section's home page on Internet, New nuclear data libraries received including package of nine data libraries, Chart of nuclides, Nuclear data processing computer codes, Data indexes and bibliographies, Selected reports and documents on nuclear data, Conference proceedings, Nuclear data handbooks. Conference announcements and the addresses of the co-operating nuclear data service centers are included. The method of accessing to NDIS via Internet (TCP/IP) and to open areas for FTP file transfer are explained

  1. Mutation Breeding Newsletter. No. 39

    International Nuclear Information System (INIS)

    1992-01-01

    This newsletter contains brief articles on the use of radiation to induce mutations in plants; radiation-induced mutants in Chrysanthemum; disrupting the association between oil and protein content in soybean seeds; mutation studies on bougainvillea; a new pepper cultivar; and the use of mutation induction to improve the quality of yam beans. A short review of the seminar on the use of mutation and related biotechnology for crop improvement in the Middle East and Mediterranean regions, and a description of a Co-ordinated Research Programme on the application of DNA-based marker mutations for the improvement of cereals and other sexually reproduced crop species are also included. Two tables are given: these are based on the ''FAO/IAEA Mutant Varieties Database'' and show the number of mutated varieties and the number of officially released mutant varieties in particular crops/species. Refs and tabs

  2. Plant breeding and genetics newsletter. No. 2

    International Nuclear Information System (INIS)

    1998-12-01

    This is the second issue of the Plant Breeding and Genetics Newsletter. The Newsletter will inform you about current activities of the FAO/IAEA sub-programme on plant breeding and genetics which is implemented by the Plant Breeding and Genetics Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture (Vienna) in close collaboration with the Plant Breeding Unit of the FAO/IAEA Agriculture and Biotechnology Laboratory (Seibersdorf)

  3. Plant breeding and genetics newsletter. No. 1

    International Nuclear Information System (INIS)

    1998-05-01

    This is the first issue of the Plant Breeding and Genetics Newsletter. The Newsletter will inform you about current activities of the FAO/IAEA sub-programme on plant breeding and genetics which is implemented by the Plant Breeding and Genetics Section of the Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture (Vienna) in close collaboration with the Plant Breeding Unit of the FAO/IAEA Agriculture and Biotechnology Laboratory (Seibersdorf)

  4. Animal Production and Health Newsletter, No. 54, July 2011

    International Nuclear Information System (INIS)

    2011-07-01

    It is with great enthusiasm that I address you in a new era - the era of a rinderpest free world. The OIE and FAO have declared the world-wide eradication of Rinderpest recently - but more about this later. The first part of this year has been a busy time for all personnel in the subprogramme. Apart from our regular Coordinated Research Project (CRP) activities and our technical support given to national and regional Technical Cooperation projects (TC), we were involved in the technical planning of projects for the new TC projects by Member States for the 2012/2013 biennial project cycle. We were also occupied with finalizing the IAEA's 2012/2013 Work and Budget Programme. It is hoped that our inputs will serve the best interests of our Member States. Please look at our web site and our Animal Production and Health Newsletter to familiarize yourselves with all the activities of the subprogramme

  5. Animal production and health newsletter. No. 45, December 2006

    International Nuclear Information System (INIS)

    2006-12-01

    Once again the year is at end and a new exciting year lies ahead of us. The past year has been a busy time for all staff in the subprogramme. Apart from our regular Coordinated Research Project (CRP) activities and our technical support given to national and regional Technical Cooperation (TC) projects, we were involved in the technical evaluation of applications for new TC projects by Member States for the 2007/2008 biennial project cycle. We have also prepared the IAEA's 2008/2009 Work and Budget Programme. It is hoped that our inputs will serve the best interests of our Member States. As with previous newsletters, I want to introduce a topic to hopefully stimulate discussion and debate and encourage interactions between all. It has been well discussed in previous newsletters that the trend towards intensification of livestock production in developing countries presents both opportunities and risks. The potential opportunities are the flow-on benefits to the local economy and producers and the potential risks are the flow-on costs to the environment, livestock health and welfare and human health, through increased chemical and nutrient pollution, disease transmission and centralization of feed resources. Understanding nutrition is one of the keys to taking advantage of the opportunities and minimizing the risks

  6. Animal production and health newsletter. No. 28

    International Nuclear Information System (INIS)

    1998-06-01

    As we move into the second half of 1998, it is appropriate to look forward to 1999 which will see the commencement of four new FAO/IAEA Co-ordinated Research Projects (CRP) and the initiation of new round of biennium support for the Agency's programme of Technical C-operation (TC). The technical direction of support through these two activities reflects the process that was begun with the external review of the animal production and heath Sub-programme in 1996. Thus in the animal health field this year we have started three new CRPs on rinderpest, contagious bovine pleuropneumonia (CBPP) and Newcastle Disease, and in 1999 we will start a new CRP on developing techniques for separating foot-and-mouth disease (FMD) vaccinated animals from those naturally infected. In the animal production field we will start new CRPs in 1999 on purine derivative analysis in urine, and on tannins whilst in veterinary drug residue analysis the first CRP will commence, again in 1999. Further information on these activities is contained in this Newsletter

  7. Itese Newsletter, Number 23 - Autumn 2014

    International Nuclear Information System (INIS)

    Devezeaux de Lavergne, Jean-Guy; Gabriel, Sophie; Jasserand, Frederic; Le Duigou, Alain; Le Net, Elisabeth; Mansilla, Christine; Maziere, Dominique; Monnet, Antoine; Popiolek, Nathalie; Thais, Francoise; Yu, Julie

    2014-01-01

    The first article of this newsletter describes some aspects of the role of hydrogen in energy transition. It outlines the sensitivity of the production cost to the business model, the great number of applications of hydrogen as a chemical product and as an energy vector, the promising applications in mobility and transport, the good public image of this product, and the role hydrogen could play in energy transition. The second article comments the recent evolutions of the uranium market and outlines the perspective of concentration of mining companies, notably state companies. The third article proposes a comparative analysis of public policies in favour of solar photovoltaic development between Germany and China (in terms of objectives, of inputs and results, of production and installations). It also highlights the interactions between the photovoltaic policy strategies of both countries. The next article addresses the project development of two EPR nuclear reactors at Hinkley Point in the UK with the favourable recommendation of the European Competition Commission. Some brief news are then proposed (mainly about recent international meetings on energy and on uranium non conventional resources)

  8. Nuclear Data Newsletter, No. 50, November 2010

    International Nuclear Information System (INIS)

    2010-11-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and database news concerning nuclear data libraries, computer codes and coordinated research projects and lists selected charts, reports and documents on nuclear data. Further it contains meeting reports of the ICTP-IAEA Workshop on Nuclear Reaction Data for Advanced Reactor Technologies, 3-14 May 2010, the Consultants Meeting on Improvements and Extension to IRDF (International Reactor Dosimetry File), 5-7 May 2010, the 28th Meeting of the International Nuclear Data Committee, 25-28 May 2010, the 2nd Research Coordination Meeting (RCM) on Characterization of Size, Composition and Origins of Dust in Fusion Devices, 21-23 June 2010, the EXFOR Editor Training, 30 August-3 September 2010, the 3rd Research Coordination Meeting (RCM) on Surface Data for Composition Dynamics relevant to Erosion Processes, 13-15 September 2010, the Technical Meeting on International Code Centres Network, 27-28 September 2010, the Technical Meeting on Neutron Cross-Section Covariances, 27-30 September 2010, the Consultants Meeting on Database Needs for Plasma Modelling, 29-30 September 2010

  9. Soils newsletter. V.17, no.2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-12-01

    This newsletter contains brief presentations of 8 co-ordinated research programmes and 4 training courses organized by the Soil Fertility, Irrigation and Crop Production Section of the Joint FAO/IAEA division and highlights on the activities on the Technical Co-operation Projects for which the Section is currently responsible in the Middle East and Europe. The following meetings are presented with excerpts from the reports submitted: The third FAO/IAEA Research Coordination Meeting FAO/IAEA CRP on Enhancing Soil Fertility and Crop production by Better Management of Rhizobium held at the University of Geneva between 15-19 August 1994 (24 excerpts), The First FAO/IAEA Research Co-ordination Meeting on ``The Use of Nuclear Techniques for Optimizing Fertilizer Applications Under Irrigated Wheat to Increase the Efficient Use of Nitrogen Fertilizers and Consequently Reduce Environmental Pollution`` held in Vienna between 3-6 October 1994 (12 excerpts) and Final Research Co-ordination Meeting of the FAO/IAEA/SIDA Co-ordinated Research Programme on The Use of Isotope Studies on Increasing and Stabilizing Plant Productivity in Low Phosphate and Semi-arid and Sub-humid Soils of the Tropics and Sub-tropics held in Vienna between 10-14 October 1994 (11 excerpts).

  10. Animal production and health newsletter. No. 28

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-06-01

    As we move into the second half of 1998, it is appropriate to look forward to 1999 which will see the commencement of four new FAO/IAEA Co-ordinated Research Projects (CRP) and the initiation of new round of biennium support for the Agency`s programme of Technical C-operation (TC). The technical direction of support through these two activities reflects the process that was begun with the external review of the animal production and heath Sub-programme in 1996. Thus in the animal health field this year we have started three new CRPs on rinderpest, contagious bovine pleuropneumonia (CBPP) and Newcastle Disease, and in 1999 we will start a new CRP on developing techniques for separating foot-and-mouth disease (FMD) vaccinated animals from those naturally infected. In the animal production field we will start new CRPs in 1999 on purine derivative analysis in urine, and on tannins whilst in veterinary drug residue analysis the first CRP will commence, again in 1999. Further information on these activities is contained in this Newsletter

  11. Soils newsletter. V.17, no.2

    International Nuclear Information System (INIS)

    1994-12-01

    This newsletter contains brief presentations of 8 co-ordinated research programmes and 4 training courses organized by the Soil Fertility, Irrigation and Crop Production Section of the Joint FAO/IAEA division and highlights on the activities on the Technical Co-operation Projects for which the Section is currently responsible in the Middle East and Europe. The following meetings are presented with excerpts from the reports submitted: The third FAO/IAEA Research Coordination Meeting FAO/IAEA CRP on Enhancing Soil Fertility and Crop production by Better Management of Rhizobium held at the University of Geneva between 15-19 August 1994 (24 excerpts), The First FAO/IAEA Research Co-ordination Meeting on ''The Use of Nuclear Techniques for Optimizing Fertilizer Applications Under Irrigated Wheat to Increase the Efficient Use of Nitrogen Fertilizers and Consequently Reduce Environmental Pollution'' held in Vienna between 3-6 October 1994 (12 excerpts) and Final Research Co-ordination Meeting of the FAO/IAEA/SIDA Co-ordinated Research Programme on The Use of Isotope Studies on Increasing and Stabilizing Plant Productivity in Low Phosphate and Semi-arid and Sub-humid Soils of the Tropics and Sub-tropics held in Vienna between 10-14 October 1994 (11 excerpts)

  12. SSDL newsletter. No. 51, September 2005

    International Nuclear Information System (INIS)

    2006-10-01

    This issue of the SSDL Newsletter starts with a brief review of changes of airkerma standards of the BIPM and primary standards dosimetry laboratories, and their implications for IAEA calibrations. The IAEA policy on implementing changes in its radiation standards is spelled out in the report. SSDL members are advised to adopt a documented policy on the way to implement changes in their reference standards and on the process of communicating the impact of the changes to their end-users. The second article is a report on the second research coordination meeting on the Coordinated Research Project E2.40.12, which deals with the development of TLD-based quality audits for radiotherapy dosimetry in non-reference conditions. The secretariat of the IAEA/WHO SSDL network is pleased to inform its members about the extension of its calibration facilities in Seibersdorf. The new facilities will host a new therapy level 60 Co unit and an X-ray machine for diagnostic x-ray calibrations. The existing facilities will be devoted to radiation protection level calibration and training of IAEA sponsored fellows. The construction of the new facilities will be completed by the end of this year

  13. Soils Newsletter. V. 12, no. 2

    International Nuclear Information System (INIS)

    1989-12-01

    This Newsletter includes reports of four research co-ordination meetings: on isotopic studies on nitrogen fixation and nitrogen cycling by blue-green algae and Azolla (final meeting, September 1989, IAEA, Vienna); on isotopic studies on increasing and stabilizing plant productivity in low phosphate and semi-arid and sub-humid soils of the tropics and sub-tropics (first meeting, October 1989, IAEA, Vienna); on the evaluation and calibration of nuclear techniques compared with traditional methods in soil water studies (July 1989, IAEA, Vienna); and on the use of isotopes in studies to improve the yield and nitrogen fixation of the common bean in Latin America (April 1989, Irapuato, Mexico). A new co-ordinated research programme on the use of nuclear and related techniques in the assessment of irrigation schedules of field crops to increase the effective use of water in irrigation projects is announced, and some of the technical co-operation programmes in the Latin America Region are briefly described. 2 tabs

  14. Nuclear Data Newsletter, No. 51, May 2011

    International Nuclear Information System (INIS)

    2011-05-01

    This periodic newsletter provides information relevant to the work of the IAEA Nuclear Data Section. This issue announces the online and database news concerning nuclear data libraries, computer codes and coordinated research projects and lists selected charts, reports and documents on nuclear data. Further it contains meeting reports of the Workshop on Nuclear Structure and Decay Data (NSDD): Theory and Evaluation, 11-15 October 2010, the Consultants Meeting on Neutron Cross Section Standards: Extending and Updating, 13-15 October 2010, the 3rd Research Coordination Meeting (RCM) on Minor Actinide Neutron Reaction Data (MANREAD), 19-22 October 2010, the ICTP-IAEA Workshop on Nuclear Data for Science and Technology: Analytical Applications, 8-12 November 2010, the Technical Meeting on XML Schema for Atoms, Molecules and Solids (XSAMS), 17-19 November 2010, the 3rd Coordination Meeting (RCM) on Heavy Charged-Particle Interaction Data for Radiotherapy, 22-26 November 2010, the 1st Research Coordination Meeting (RCM) on Spectroscopic and Collisional Data for Tungsten from 1 eV to 20 keV, 13-15 December 2010, the Consultants Meeting to Review Benchmarking of Nuclear Data for the Th/U Fuel Cycle, 20-22 December 2010

  15. Animal Production and Health Newsletter, No. 64, July 2016

    International Nuclear Information System (INIS)

    2016-07-01

    Looking back at the activities of the past six months, we had several emergency actions and consultations (e.g. support to MS to address the Zika virus outbreaks in Latin America and the lumpy skin disease outbreaks in Eastern Europe), workshops, training courses, RCMs and consultants meetings. Activities scheduled for the next half-year include project review meetings, RCMs, interregional training courses and regional workshops. Both past and future activities are discussed in further detail in this newsletter and are also accessible at our website

  16. Evaluation of the anesthetic effects of MS222 in the adult Mexican axolotl (Ambystoma mexicanum

    Directory of Open Access Journals (Sweden)

    Zullian C

    2016-01-01

    Full Text Available Chiara Zullian,1 Aurore Dodelet-Devillers,1 Stéphane Roy,2 Pascal Vachon1 1Département de Biomédecine Vétérinaire, Faculté de Médecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, 2Département de Stomatologie, Faculté de Médecine Dentaire, Montréal, Québec, Canada Abstract: The Mexican axolotl (Ambystoma mexicanum is a unique research model in several fields of medicine, where surgical and invasive procedures may be required. As yet, little is known about the efficacy of MS222 (tricaine methanesulfonate, which is the most commonly used anesthetic agent in amphibians. The main objectives of this study were to evaluate the anesthetic effects and physiological changes in adult axolotls following a 20-minute immersion bath, containing progressive MS222 concentrations starting at 0.1%. Depth of anesthesia and physiological changes were evaluated every 15 minutes post-MS222 exposure with the following parameters: righting behavior, withdrawal reflex, acetic acid test response, heart rate, and blood oxygen saturation, as well as cloacal and body surface temperatures. A 20-minute exposure in a 0.1% MS222 immersion bath (n=6 animals had no anesthetic effects on adult axolotls after 20 minutes of exposure. With a 0.2% MS222 solution, all axolotls (n=9 were deeply anesthetized at 15 minutes, and 80% were still unresponsive at 30 minutes postexposure. Blood oxygen saturation and heart rate were slightly, but significantly, increased when compared with the baseline value and remained stable up to recovery. There was no significant increase in surface and cloaca temperatures, compared with baseline. With the 0.4% MS222 solution, the duration of anesthesia lasted for 90 minutes to at least 120 minutes (n=3 animals and this concentration was deemed too high. In conclusion, a 20-minute immersion bath with 0.2% MS222 may be used for short procedures (15–30 minutes requiring anesthesia of adult axolotls. Keywords: Ambystoma mexicanum

  17. Plasma Physics Network Newsletter. No. 4

    International Nuclear Information System (INIS)

    1991-08-01

    This, fourth, issue of the Newsletter contains a (i) contribution in the series of reports on national fusion programmes from Algeria; (ii) a letter from Dr J.A.M. de Villiers, manager: fusion studies, at the Atomic Energy Corporation of South Africa Limited, informing about the close-down of the small tokamak project there, and soliciting ways to use some manpower and supportive sources to salvage the wealth of information still left behind in the project, and offering, in the possible absence of such manpower and supportive sources, the entire facility for sale (specifications of the Tokoloshe Tokamak plus diagnostic systems are enclosed); (iii) the e-mail address of the Third World Plasma Research Network (TWPRN), namely: ''PLASNET.NERUS.PFC.MIT.EDU''; (iv) minutes of the TWPRN Steering Committee Meeting held in May 1991, at the I.C.T.P., Trieste, Italy; (v) a news item on the ITER Tokamak project; (vi) a reiteration of the announcement of the 14th IAEA International Conference on Plasma Physics and Controlled Nuclear Fusion Research, to be held in Wuerzburg, Germany, September 30 - October 7, 1992; (vii) a list of IAEA Technical Committee Meetings during 1991; (viii) the First Announcement of the V Latin American Workshop on Plasma Physics, to be held in Mexico City, July 21-30, 1992, accompanied with a call for papers; all correspondence on this conference should be addressed to: Dr. Julio Herrera, V LAWPP, ICN-UNAM, Apdo. Postal 70-543, Delegacion Coyoacan, 04510 Mexico, D.F. Mexico (e-mail: ''HERRE.UNAMVM1.BITNET''); (ix) the announcement for the Second South North International Workshop on Fusion Theory, Lisbon, Portugal, March 1993 (contact: Pr. Tito Mendonca, Centro de Electrodinamica, Instituto Superio Tecnico, 1096 Lisbon Codex, Portugal)

  18. Expression of Msx-2 during development, regeneration, and wound healing in axolotl limbs.

    Science.gov (United States)

    Carlson, M R; Bryant, S V; Gardiner, D M

    1998-12-15

    Msx genes are transcription factors that are expressed during embryogenesis of developing appendages in regions of epithelial-mesenchymal interactions. Various lines of evidence indicate that these genes function to maintain embryonic tissues in an undifferentiated, proliferative state. We have identified the axolotl homolog of Msx-2, and investigated its expression during limb development, limb regeneration, and wound healing. As in limb buds of higher vertebrates, axolotl Msx-2 is expressed in the apical epidermis and mesenchyme; however, its expression domain is more extensive, reflecting the broader region of the apical epidermal cap in amphibians. Msx-2 expression is downregulated at late stages of limb development, but is reexpressed within one hour after limb amputation. Msx-2 is also reexpressed during wound healing, and may be essential in the early stages of initiation of the limb regeneration cascade.

  19. Comparative Analysis of Cartilage Marker Gene Expression Patterns during Axolotl and Xenopus Limb Regeneration.

    Directory of Open Access Journals (Sweden)

    Kazumasa Mitogawa

    Full Text Available Axolotls (Ambystoma mexicanum can completely regenerate lost limbs, whereas Xenopus laevis frogs cannot. During limb regeneration, a blastema is first formed at the amputation plane. It is thought that this regeneration blastema forms a limb by mechanisms similar to those of a developing embryonic limb bud. Furthermore, Xenopus laevis frogs can form a blastema after amputation; however, the blastema results in a terminal cone-shaped cartilaginous structure called a "spike." The causes of this patterning defect in Xenopus frog limb regeneration were explored. We hypothesized that differences in chondrogenesis may underlie the patterning defect. Thus, we focused on chondrogenesis. Chondrogenesis marker genes, type I and type II collagen, were compared in regenerative and nonregenerative environments. There were marked differences between axolotls and Xenopus in the expression pattern of these chondrogenesis-associated genes. The relative deficit in the chondrogenic capacity of Xenopus blastema cells may account for the absence of total limb regenerative capacity.

  20. Regulation of antibody synthesis in the X-irradiated Mexican axolotl

    International Nuclear Information System (INIS)

    Charlemagne, J.

    1981-01-01

    The effects of X-irradiation were studied on the Mexican axolotl antibody synthesis. To reduce the anti-horse red blood cell (HRBC) antibody titers, 150 rd and smaller doses are ineffective, 200-450 rd are increasingly effective, and 700 rd are maximally effective (and lethal). A significant enhancement of the anti-HRBC titers was observed in low doses (50-150 rd X-irradiated animals). This enhancement was also observed when a low X-ray dose was applied only on the thymic areas. In whole body, but thymus area-shielded, 100 rd X-irradiated animals, the anti-HRBC titers were similar to those of the nonirradiated, HRBC-immunized control group. To explain these phenomena, it is suggested that a radiosensitive, adult thymectomy-sensitive and hydrocortisone-sensitive suppressor T cell subpopulation regulates the antibody synthesis in the axolotl. (orig.) [de

  1. Regulation of antibody synthesis in the X-irradiated Mexican axolotl

    Energy Technology Data Exchange (ETDEWEB)

    Charlemagne, J.

    1981-09-01

    The effects of X-irradiation were studied on the Mexican axolotl antibody synthesis. To reduce the anti-horse red blood cell (HRBC) antibody titers, 150 rd and smaller doses are ineffective, 200-450 rd are increasingly effective, and 700 rd are maximally effective (and lethal). A significant enhancement of the anti-HRBC titers was observed in low doses (50-150 rd X-irradiated animals). This enhancement was also observed when a low X-ray dose was applied only on the thymic areas. In whole body, but thymus area-shielded, 100 rd X-irradiated animals, the anti-HRBC titers were similar to those of the nonirradiated, HRBC-immunized control group. To explain these phenomena, it is suggested that a radiosensitive, adult thymectomy-sensitive and hydrocortisone-sensitive suppressor T cell subpopulation regulates the antibody synthesis in the axolotl.

  2. Germline Transgenic Methods for Tracking Cells and Testing Gene Function during Regeneration in the Axolotl

    Science.gov (United States)

    Khattak, Shahryar; Schuez, Maritta; Richter, Tobias; Knapp, Dunja; Haigo, Saori L.; Sandoval-Guzmán, Tatiana; Hradlikova, Kristyna; Duemmler, Annett; Kerney, Ryan; Tanaka, Elly M.

    2013-01-01

    The salamander is the only tetrapod that regenerates complex body structures throughout life. Deciphering the underlying molecular processes of regeneration is fundamental for regenerative medicine and developmental biology, but the model organism had limited tools for molecular analysis. We describe a comprehensive set of germline transgenic strains in the laboratory-bred salamander Ambystoma mexicanum (axolotl) that open up the cellular and molecular genetic dissection of regeneration. We demonstrate tissue-dependent control of gene expression in nerve, Schwann cells, oligodendrocytes, muscle, epidermis, and cartilage. Furthermore, we demonstrate the use of tamoxifen-induced Cre/loxP-mediated recombination to indelibly mark different cell types. Finally, we inducibly overexpress the cell-cycle inhibitor p16INK4a, which negatively regulates spinal cord regeneration. These tissue-specific germline axolotl lines and tightly inducible Cre drivers and LoxP reporter lines render this classical regeneration model molecularly accessible. PMID:24052945

  3. Regulation of Regenerative Responses by Factors in the Extracellular Matrix during Axolotl (Ambystoma mexicanum) Limb Regeneration

    OpenAIRE

    Phan, Anne Quy

    2014-01-01

    Salamanders are unique among adult vertebrates in their ability to regenerate complex body structures after traumatic injury. Axolotl limb regeneration is a stepwise sequence of three requisite processes: (1) scarless wound healing to generate a regenerative wound epithelium, (2) blastema formation by migration, proliferation and dedifferentiation to create a mass of multipotent regeneration-competent progenitor cells, and (3) induction of pattern formation by interaction of cells with opposi...

  4. Activation of germline-specific genes is required for limb regeneration in the Mexican axolotl

    OpenAIRE

    Zhu, Wei; Pao, Gerald M; Satoh, Akira; Cummings, Gillian; Monaghan, James R; Harkins, Timothy T; Bryant, Susan V; Voss, S Randal; Gardiner, David M; Hunter, Tony

    2012-01-01

    The capacity for tissue and organ regeneration in humans is dwarfed by comparison to that of salamanders. Emerging evidence suggests that mechanisms learned from the early phase of salamander limb regeneration-wound healing, cellular dedifferentiation and blastemal formation-will reveal therapeutic approaches for tissue regeneration in humans. Here we describe a unique transcriptional fingerprint of regenerating limb tissue in the Mexican axolotl (Ambystoma mexicanum) that is indicative of ce...

  5. Neural crest does not contribute to the neck and shoulder in the axolotl (Ambystoma mexicanum).

    Science.gov (United States)

    Epperlein, Hans-Henning; Khattak, Shahryar; Knapp, Dunja; Tanaka, Elly M; Malashichev, Yegor B

    2012-01-01

    A major step during the evolution of tetrapods was their transition from water to land. This process involved the reduction or complete loss of the dermal bones that made up connections to the skull and a concomitant enlargement of the endochondral shoulder girdle. In the mouse the latter is derived from three separate embryonic sources: lateral plate mesoderm, somites, and neural crest. The neural crest was suggested to sustain the muscle attachments. How this complex composition of the endochondral shoulder girdle arose during evolution and whether it is shared by all tetrapods is unknown. Salamanders that lack dermal bone within their shoulder girdle were of special interest for a possible contribution of the neural crest to the endochondral elements and muscle attachment sites, and we therefore studied them in this context. We grafted neural crest from GFP+ fluorescent transgenic axolotl (Ambystoma mexicanum) donor embryos into white (d/d) axolotl hosts and followed the presence of neural crest cells within the cartilage of the shoulder girdle and the connective tissue of muscle attachment sites of the neck-shoulder region. Strikingly, neural crest cells did not contribute to any part of the endochondral shoulder girdle or to the connective tissue at muscle attachment sites in axolotl. Our results in axolotl suggest that neural crest does not serve a general function in vertebrate shoulder muscle attachment sites as predicted by the "muscle scaffold theory," and that it is not necessary to maintain connectivity of the endochondral shoulder girdle to the skull. Our data support the possibility that the contribution of the neural crest to the endochondral shoulder girdle, which is observed in the mouse, arose de novo in mammals as a developmental basis for their skeletal synapomorphies. This further supports the hypothesis of an increased neural crest diversification during vertebrate evolution.

  6. Neural crest does not contribute to the neck and shoulder in the axolotl (Ambystoma mexicanum.

    Directory of Open Access Journals (Sweden)

    Hans-Henning Epperlein

    Full Text Available BACKGROUND: A major step during the evolution of tetrapods was their transition from water to land. This process involved the reduction or complete loss of the dermal bones that made up connections to the skull and a concomitant enlargement of the endochondral shoulder girdle. In the mouse the latter is derived from three separate embryonic sources: lateral plate mesoderm, somites, and neural crest. The neural crest was suggested to sustain the muscle attachments. How this complex composition of the endochondral shoulder girdle arose during evolution and whether it is shared by all tetrapods is unknown. Salamanders that lack dermal bone within their shoulder girdle were of special interest for a possible contribution of the neural crest to the endochondral elements and muscle attachment sites, and we therefore studied them in this context. RESULTS: We grafted neural crest from GFP+ fluorescent transgenic axolotl (Ambystoma mexicanum donor embryos into white (d/d axolotl hosts and followed the presence of neural crest cells within the cartilage of the shoulder girdle and the connective tissue of muscle attachment sites of the neck-shoulder region. Strikingly, neural crest cells did not contribute to any part of the endochondral shoulder girdle or to the connective tissue at muscle attachment sites in axolotl. CONCLUSIONS: Our results in axolotl suggest that neural crest does not serve a general function in vertebrate shoulder muscle attachment sites as predicted by the "muscle scaffold theory," and that it is not necessary to maintain connectivity of the endochondral shoulder girdle to the skull. Our data support the possibility that the contribution of the neural crest to the endochondral shoulder girdle, which is observed in the mouse, arose de novo in mammals as a developmental basis for their skeletal synapomorphies. This further supports the hypothesis of an increased neural crest diversification during vertebrate evolution.

  7. Pathological changes of Golgi complex in hemocytoblasts of spleen of young axolotls after x-irradiation

    Energy Technology Data Exchange (ETDEWEB)

    Turska, R.

    1975-01-01

    The data available up to now concerning the structure of Golgi complex in different types of normal and pathologically changed cells are very divergent. Results are reported from detailed studies on changes occurring within the Golgi complex in the spleen of three-month old axolotls after x-ray irradiation with a single dose of 1,200 R and killed by decapitation 15, 30, 60 minutes and 3, 6, and 12 hours after irradiation.

  8. Propofol (2,6-diisopropylphenol) is an applicable immersion anesthetic in the axolotl with potential uses in hemodynamic and neurophysiological experiments

    DEFF Research Database (Denmark)

    Thygesen, Mathias; Rasmussen, Mikkel Mylius; Madsen, Jesper Guldsmed

    2017-01-01

    The Mexican axolotl (Ambystoma mexicanum) is an important model species in regenerative biology. Traditionally, axolotls are anesthetized using benzocaine or MS-222, both of which act to inhibit voltage gated sodium channels thereby preventing action potential propagation. In some neurophysiologi......The Mexican axolotl (Ambystoma mexicanum) is an important model species in regenerative biology. Traditionally, axolotls are anesthetized using benzocaine or MS-222, both of which act to inhibit voltage gated sodium channels thereby preventing action potential propagation. In some...... neurophysiological experiments this is not desirable; therefore we tested propofol as an alternative anesthetic in the axolotl. We evaluated benzocaine, MS-222, and propofol's cardiovascular effects, effects on action potential propagation in the spinal cord, and gross limb regenerative effects. We found...

  9. Educating the medical community through a teratology newsletter.

    OpenAIRE

    Guttmacher, A E; Allen, E F

    1993-01-01

    To educate a geographically and professionally diverse group of health care providers about teratology in an economic and efficient manner, we developed a locally written and distributed teratology newsletter. Response to the newsletter, from readers as well as from our staff and funding agencies, suggests that such a newsletter can be a valuable tool in educating medical communities about teratology.

  10. Educating the medical community through a teratology newsletter.

    Science.gov (United States)

    Guttmacher, A E; Allen, E F

    1993-01-01

    To educate a geographically and professionally diverse group of health care providers about teratology in an economic and efficient manner, we developed a locally written and distributed teratology newsletter. Response to the newsletter, from readers as well as from our staff and funding agencies, suggests that such a newsletter can be a valuable tool in educating medical communities about teratology. PMID:8434594

  11. Promoting Nutrition and Wellness Statewide through an Electronic Newsletter

    Science.gov (United States)

    Bahl, Morgan; Francis, Sarah L.

    2016-01-01

    The "Words on Wellness" (WOW) newsletter was designed as an electronic newsletter intended to provide research-based nutrition and wellness information to Iowans. An evaluation was conducted to assess to what extent the newsletter is being used by its readership and whether readers are making lifestyle changes as a result. Those who…

  12. Expression of Msx genes in regenerating and developing limbs of axolotl.

    Science.gov (United States)

    Koshiba, K; Kuroiwa, A; Yamamoto, H; Tamura, K; Ide, H

    1998-12-15

    Msx genes, homeobox-containing genes, have been isolated as homologues of the Drosophila msh gene and are thought to play important roles in the development of chick or mouse limb buds. We isolated two Msx genes, Msx1 and Msx2, from regenerating blastemas of axolotl limbs and examined their expression patterns using Northern blot and whole mount in situ hybridization during regeneration and development. Northern blot analysis revealed that the expression level of both Msx genes increased during limb regeneration. The Msx2 expression level increased in the blastema at the early bud stage, and Msx1 expression level increased at the late bud stage. Whole mount in situ hybridization revealed that Msx2 was expressed in the distal mesenchyme and Msx1 in the entire mesenchyme of the blastema at the late bud stage. In the developing limb bud, Msx1 was expressed in the entire mesenchyme, while Msx2 was expressed in the distal and peripheral mesenchyme. The expression patterns of Msx genes in the blastemas and limb buds of the axolotl were different from those reported for chick or mouse limb buds. These expression patterns of axolotl Msx genes are discussed in relation to the blastema or limb bud morphology and their possible roles in limb patterning.

  13. Myofibril-Inducing RNA (MIR is essential for tropomyosin expression and myofibrillogenesis in axolotl hearts

    Directory of Open Access Journals (Sweden)

    Lemanski Sharon L

    2009-09-01

    Full Text Available Abstract The Mexican axolotl, Ambystoma mexicanum, carries the naturally-occurring recessive mutant gene 'c' that results in a failure of homozygous (c/c embryos to form hearts that beat because of an absence of organized myofibrils. Our previous studies have shown that a noncoding RNA, Myofibril-Inducing RNA (MIR, is capable of promoting myofibrillogenesis and heart beating in the mutant (c/c axolotls. The present study demonstrates that the MIR gene is essential for tropomyosin (TM expression in axolotl hearts during development. Gene expression studies show that mRNA expression of various tropomyosin isoforms in untreated mutant hearts and in normal hearts knocked down with double-stranded MIR (dsMIR are similar to untreated normal. However, at the protein level, selected tropomyosin isoforms are significantly reduced in mutant and dsMIR treated normal hearts. These results suggest that MIR is involved in controlling the translation or post-translation of various TM isoforms and subsequently of regulating cardiac contractility.

  14. Neuregulin-1 signaling is essential for nerve-dependent axolotl limb regeneration.

    Science.gov (United States)

    Farkas, Johanna E; Freitas, Polina D; Bryant, Donald M; Whited, Jessica L; Monaghan, James R

    2016-08-01

    The Mexican axolotl (Ambystoma mexicanum) is capable of fully regenerating amputated limbs, but denervation of the limb inhibits the formation of the post-injury proliferative mass called the blastema. The molecular basis behind this phenomenon remains poorly understood, but previous studies have suggested that nerves support regeneration via the secretion of essential growth-promoting factors. An essential nerve-derived factor must be found in the blastema, capable of rescuing regeneration in denervated limbs, and its inhibition must prevent regeneration. Here, we show that the neuronally secreted protein Neuregulin-1 (NRG1) fulfills all these criteria in the axolotl. Immunohistochemistry and in situ hybridization of NRG1 and its active receptor ErbB2 revealed that they are expressed in regenerating blastemas but lost upon denervation. NRG1 was localized to the wound epithelium prior to blastema formation and was later strongly expressed in proliferating blastemal cells. Supplementation by implantation of NRG1-soaked beads rescued regeneration to digits in denervated limbs, and pharmacological inhibition of NRG1 signaling reduced cell proliferation, blocked blastema formation and induced aberrant collagen deposition in fully innervated limbs. Taken together, our results show that nerve-dependent NRG1/ErbB2 signaling promotes blastemal proliferation in the regenerating limb and may play an essential role in blastema formation, thus providing insight into the longstanding question of why nerves are required for axolotl limb regeneration. © 2016. Published by The Company of Biologists Ltd.

  15. Linking vertebral number to performance of aquatic escape responses in the axolotl (Ambystoma mexicanum).

    Science.gov (United States)

    Ackerly, Kerri L; Ward, Andrea B

    2015-12-01

    Environmental conditions during early development in ectothermic vertebrates can lead to variation in vertebral number among individuals of the same species. It is often seen that individuals of a species raised at cooler temperatures have more vertebrae than individuals raised at warmer temperatures, although the functional consequences of this variation in vertebral number on swimming performance are relatively unclear. To investigate this relationship, we tested how vertebral number in axolotls (Ambystoma mexicanum) affected performance of aquatic escape responses (C-starts). Axolotls were reared at four temperatures (12-24°C) encompassing their natural thermal range and then transitioned to a mean temperature (18°C) three months before C-starts were recorded. Our results showed variation in vertebral number, but that variation was not significantly affected by developmental temperature. C-start performance among axolotls was significantly correlated with caudal vertebral number, and individuals with more caudal vertebrae were able to achieve greater curvature more quickly during their responses than individuals with fewer vertebrae. However, our results show that these individuals did not achieve greater displacements or velocities, and that developmental temperature did not have any effect on C-start performance. We highlight that the most important aspects of escape swim performance (i.e., how far individuals get from a threat and how quickly they move the most important parts of the body away from that threat) are consistent across individuals regardless of developmental temperature and morphological variation. Copyright © 2015 Elsevier GmbH. All rights reserved.

  16. Highly restricted diversity of TCR delta chains of the amphibian Mexican axolotl (Ambystoma mexicanum) in peripheral tissues.

    Science.gov (United States)

    André, Sébastien; Kerfourn, Fabienne; Affaticati, Pierre; Guerci, Aline; Ravassard, Philippe; Fellah, Julien S

    2007-06-01

    Gammadelta T cells localize at mammalian epithelial surfaces to exert both protective and regulatory roles in response to infections. We have previously characterized the Mexican axolotl (Ambystoma mexicanum) T cell receptor delta (TRD) chain. In this study, TRD repertoires in spleen, liver, intestine and skin from larvae, pre-adult and adult axolotls were examined and compared to the thymic TRD repertoire. A TRDV transcript without N/D diversity, TRDV1S1-TRDJ1, dominates the TRD repertoires until sexual maturation. In adult tissues, this canonical transcript is replaced by another dominant TRDV1S1-TRDJ1 transcript. In the thymus, these two transcripts are detected early in development. Our results suggest that gammadelta T cells that express the canonical TRDV1S1-TRDJ1 transcript emerge from the thymus and colonize the peripheral tissues, where they are selectively expanded by recurrent ligands. This particular situation is probably related to the neotenic state and the slow development of the axolotl. In thymectomized axolotls, TRD repertoires appear different from those of normal axolotls, suggesting that extrathymic gammadelta T cell differentiation could occur. Gene expression analysis showed the importance of the gut in T cell development.

  17. Efficient gene knockin in axolotl and its use to test the role of satellite cells in limb regeneration.

    Science.gov (United States)

    Fei, Ji-Feng; Schuez, Maritta; Knapp, Dunja; Taniguchi, Yuka; Drechsel, David N; Tanaka, Elly M

    2017-11-21

    Salamanders exhibit extensive regenerative capacities and serve as a unique model in regeneration research. However, due to the lack of targeted gene knockin approaches, it has been difficult to label and manipulate some of the cell populations that are crucial for understanding the mechanisms underlying regeneration. Here we have established highly efficient gene knockin approaches in the axolotl ( Ambystoma mexicanum ) based on the CRISPR/Cas9 technology. Using a homology-independent method, we successfully inserted both the Cherry reporter gene and a larger membrane-tagged Cherry-ER T2 -Cre-ER T2 (∼5-kb) cassette into axolotl Sox2 and Pax7 genomic loci. Depending on the size of the DNA fragments for integration, 5-15% of the F0 transgenic axolotl are positive for the transgene. Using these techniques, we have labeled and traced the PAX7-positive satellite cells as a major source contributing to myogenesis during axolotl limb regeneration. Our work brings a key genetic tool to molecular and cellular studies of axolotl regeneration.

  18. Soils newsletter. Vol. 25, No. 1

    International Nuclear Information System (INIS)

    2002-06-01

    This issue of the Newsletter announces the two new co-ordinated research projects (CRPs), each of 5 years duration, were approved in March: Assess the effectiveness of soil conservation techniques for sustainable watershed management using fallout radionuclides; Selection for greater agronomic water use efficiency in wheat and rice using carbon isotope discrimination. Both CRPs are interdisciplinary - the first with the Isotope Hydrology Section and the second with the Plant Breeding and Genetics Section. Research contract and agreement proposals are presently being invited for the first project, which will be implemented in 2002, while the second project will be implemented in 2003. Preparations for Symposium 59 'Towards Integrated Soil, Water and Nutrient Management in Cropping Systems: the Role of Nuclear Techniques' at the 17th World Congress of Soil Science, 14-21 August 2002, Bangkok, Thailand, are being finalized. Due to the large response to the call for papers, the symposium was extended from a half-day to a full-day event, with 14 oral presentations and approximately 80 poster presentations scheduled. As sponsors of Symposium 59, we have been offered a cost-free booth to display our projects and products. The symposium and booth are both important mechanisms to increase awareness and visibility and demonstrate sub-programme activities to a large cross section of the international scientific community concerned with natural resource management. The Agency is providing financial support to nine participants from developing countries to attend the Congress. Memoranda of Understanding (MOUs) were signed recently with several Organisations to foster international co-operation and collaboration. The agreements are with the International Fertilizer Development Centre (IFDC), the Tropical Soil Biology and Fertility Programme (TSBF) and the International Wheat and Maize Improvement Centre (CIMMYT). MOUs were previously agreed with IRRI, ICRAF, ICRISAT, ICARDA

  19. Ultrastructure of the renal juxtaglomerular complex and peripolar cells in the axolotl (Ambystoma mexicanum) and toad (Bufo marinus).

    Science.gov (United States)

    Hanner, R H; Ryan, G B

    1980-01-01

    Renal juxtaglomerular regions were examined in the axolotl (Ambystoma mexicanum and toad (Bufo marinus). Prominent granulated peripolar epithelial cells were found surrounding the origin of the glomerular tuft in the axolotl. These cells resembled the peripolar cells recently discovered in mammalian species. They contained multiple electron-dense cytoplasmic granules, some of which showed a paracrystalline substructure and signs of exocytoxic activity. Such cells were difficult to find and smaller in the toad. In contrast, granulated juxtaglomerular arteriolar myoephithelial cells were much more readily found and larger in the toad than in the axolotl. No consistent differences were noted in juxtaglomerular cells or their granules in response to changes in environmental chloride concentration. Images Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 9 PMID:7410189

  20. Soils newsletter. V. 23, no. 2

    International Nuclear Information System (INIS)

    2001-01-01

    Soil Science in Bangkok in 2002. The Sub-programme provided support to 22 Technical Co-operation Projects worth more than US $4 million during 1999-2000 compared with 23 projects in 1997-98. Four projects in the current biennium were regional and one was interregional. The projection for 2001-02 is 25 projects, including 3 regional and one interregional. Thus, the Subprogramme's portfolio of TC projects has remained relatively stable during the 1997-2002 period. The regional projects for 2001-02 include fertigation (Europe), desertification (Africa) and nutrient management (Asia). Sub-programme inputs to the FAO Medium Term Plan (2001-07) and to the IAEA and FAO Programmes of Work and Budget (2002-03 biennium) were finalised during 2000. Two new CRPs will commence in 2003. One project will be concerned with the practical application of the Cs-137 technique to assess soil conservation measures and the other is targeted at improved irrigation practices. Three TECDOCS and a range of articles were published by the Sub-programme in 2000, details of which can be found in the current and the previous Newsletters

  1. Animal production and health newsletter. No. 6

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-06-01

    This Newsletter announces research coordination meetings, status of existing research coordinated research programmes on the use of isotope application in animal reproduction, nutrition and disease diagnostics. Training courses as well as new coordinated research programmes in the pipeline are also highlighted.

  2. TASCC newsletter volume 7 no. 12

    International Nuclear Information System (INIS)

    Thomson, L.

    1993-12-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this December issue of TASCC is an update of the facility, a year end review by the director and a listing of experiments carried out in December. 3 figs

  3. Insect and pest control newsletter. No. 53

    International Nuclear Information System (INIS)

    1999-07-01

    This Newsletter announces research coordination meetings, status of existing research coordinated research programmes on the use of nuclear applications such as the sterile insect technique (SIT) in insect and pest control. Training courses as well as new coordinated research programmes in the pipeline are also highlighted

  4. TASCC newsletter volume 8 no. 7

    International Nuclear Information System (INIS)

    Thomson, L.

    1994-07-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this July issue of TASCC is an update of the facility,news on TASCC personnel, results of a coulomb-excitation and a listing of July's experiments. 4 figs

  5. IDRA Newsletter. Volume 37, No. 4

    Science.gov (United States)

    Goodman, Christie L., Ed.

    2010-01-01

    Each edition of the IDRA Newsletter strives to provide many different perspectives on the issues in education topics discussed and to define its significance in the state and national dialogue. This issue focuses on Parent and Community Engagement and includes: (1) Principles of Family Leadership in Education--Putting Principles into Action…

  6. IDRA Newsletter. Volume 44, No. 5

    Science.gov (United States)

    Goodman, Christie L., Ed.

    2017-01-01

    Each edition of the IDRA Newsletter strives to provide many different perspectives on the issues in education topics discussed and to define its significance in the state and national dialogue. This issue focuses on Family Leadership in Education and includes (1) IDRA Education CAFE--A Structure for Families Transforming Schools in their…

  7. TASCC newsletter volume 7 no. 10

    International Nuclear Information System (INIS)

    Thomson, L.

    1993-10-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this October issue of TASCC is an update of the facility report, ECR ion source development, new measurement of Carbon 10, Penning-trap mass spectrometer and a listing of October's experiments. 2 figs

  8. TASCC newsletter volume 7 no. 6

    International Nuclear Information System (INIS)

    Thomson, L.

    1993-06-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this June issue of TASCC is a facility report, updates on experiments being conducted, educational affiliation with the Deep River Science Academy and findings involving gadolinium-149 and information on a highly deformed band found in praseodymium. 2 figs

  9. TASCC newsletter volume 8 no. 3

    International Nuclear Information System (INIS)

    Thomson, L.

    1994-03-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this March issue of TASCC is an update of the facility, a VAX station installation on 8π spectrometer, staff awards, time-of-flight techniques for AMS of iodine isotopes and a listing of experiments for March. 4 figs

  10. Insect and pest control newsletter. No. 54

    International Nuclear Information System (INIS)

    2000-01-01

    This Newsletter announces research coordination meetings, status of existing research coordinated research programmes on the use of nuclear applications such as the sterile insect technique (SIT) in insect and pest control. Training courses as well as new coordinated research programmes in the pipeline are also highlighted

  11. Insect and pest control newsletter. No. 56

    International Nuclear Information System (INIS)

    2001-01-01

    This Newsletter announces research coordination meetings, status of existing research coordinated research programmes on the use of nuclear applications such as the sterile insect technique (SIT) in insect and pest control. Training courses as well as new coordinated research programmes in the pipeline are also highlighted

  12. Insect and pest control newsletter. No. 52

    International Nuclear Information System (INIS)

    1998-12-01

    This Newsletter announces research coordination meetings, status of existing research coordinated research programmes on the use of nuclear applications such as the sterile insect technique (SIT) in insect and pest control. Training courses as well as new coordinated research programmes in the pipeline are also highlighted

  13. Insect and pest control newsletter. No. 50

    International Nuclear Information System (INIS)

    1997-10-01

    This Newsletter announces research coordination meetings, status of existing research coordinated research programmes on the use of nuclear applications such as the sterile insect technique (SIT) in insect and pest control. Training courses as well as new coordinated research programmes in the pipeline are also highlighted

  14. Insect and pest control newsletter. No. 51

    International Nuclear Information System (INIS)

    1998-06-01

    This Newsletter announces research coordination meetings, status of existing research coordinated research programmes on the use of nuclear applications such as the sterile insect technique (SIT) in insect and pest control. Training courses as well as new coordinated research programmes in the pipeline are also highlighted

  15. Soils Newsletter. V. 10, no. 1

    International Nuclear Information System (INIS)

    1987-07-01

    This Newsletter contains reports of the Advisory Group Meeting on the use of Nuclear and related techniques in studying the roles of trees in restoring and maintaining soil fertility (November 1986, Vienna) and the first Research Co-ordination Meeting on nuclear techniques to improve production in salt-affected soils (December 1986, IAEA, Vienna)

  16. Soils Newsletter. V. 11, no. 2

    International Nuclear Information System (INIS)

    1988-12-01

    This Newsletter contains a report of the second research co-ordination meeting on nuclear techniques to improve crop production on salt-affected soils (October 1988, IAEA, Vienna) and lists some of the technical co-operation programmes in Europe and the Middle East

  17. ITER EDA newsletter. V. 2, no. 2

    International Nuclear Information System (INIS)

    1993-02-01

    This issue of the ITER EDA (Engineering Design Activities) Newsletter contains a progress report by the Director, a report on the completion of the first activities of the Special Work Group 2 (SWG-2), a report on a magnet technical meeting, held at Naka, Japan, 26-29 January 1993, and on the US Home Team National Meeting, 25-26 January 1993

  18. Solar Energy Technologies Program Newsletter - July 2009

    Energy Technology Data Exchange (ETDEWEB)

    None

    2009-07-01

    This quarterly newsletter is intended for participants and stakeholders in the DOE Solar Program. The content includes features on technology development, market transformation, and policy analysis for solar. Highlights include solar industry updates, DOE funding opportunity announcements and awards, and national laboratory technology developments.

  19. ITER EDA Newsletter. V. 3, no. 8

    International Nuclear Information System (INIS)

    1994-08-01

    This ITER EDA (Engineering Design Activities) Newsletter issue reports on the sixth ITER council meeting; introduces the newly appointed ITER director and reports on his address to the ITER council. The vacuum tank for the ITER model coil testing, installed at JAERI, Naka, Japan is also briefly described

  20. ITER EDA newsletter. V. 10, no. 6

    International Nuclear Information System (INIS)

    2001-06-01

    This ITER EDA Newsletter issue includes information about the ITER Management Advisory Committee Meeting held in Vienna on 16 July 2001 and also a summary of the ninth ITER Technical Meeting on safety and environment held at the ITER Garching Joint Work site, 8 to 10 May, 2001

  1. ITER EDA newsletter. V. 7, no. 12

    International Nuclear Information System (INIS)

    1998-12-01

    This edition of the ITER EDA Newsletter is dedicated to celebrate the achievements of the ITER activities at the San Diego Joint Work Site. Articles by E. Velikhov, A. Davies and R. Aymar mark the final days of American participation in the ITER program

  2. Animal production and health newsletter. No. 5

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1987-01-01

    This Newsletter announces research coordination meetings, status of existing research coordinated research programmes on the use of isotope application in animal reproduction, nutrition and disease diagnostics. Training courses as well as new coordinated research programmes in the pipeline are also highlighted.

  3. Nuclear power newsletter Vol. 2, no. 1

    International Nuclear Information System (INIS)

    2005-03-01

    This newsletter presents information on the following topics: 7th meeting of the INPRO Steering Committee; Nuclear Power Plant Operating Performance and Life Cycle Management; Improving Human Performance, Quality and Technical Infrastructure; Co-ordination of International Collaboration for the Development of Innovative Nuclear Technology; Technology Developments and Applications for Advanced Reactors; 1st European Nuclear Assembly

  4. ITER EDA Newsletter. V. 3, no. 6

    International Nuclear Information System (INIS)

    1994-06-01

    This issue of the ITER EDA (Engineering Design Activities) Newsletter contains reports on the Technical Committee Meeting of the Working Group on Gyrotrons and Windows, held at the Garching Joint Work Site from 16-18 May 1994, and on the Technical Committee Meeting on the ITER Power Supply held at the Naka Joint Work Site from May 10-13, 1994. 1 tab

  5. TASCC newsletter volume 10 no. 1

    International Nuclear Information System (INIS)

    Thomson, L.

    1996-01-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this January issue of TASCC is an update of the facility, letters of support to the government for research to continue at Chalk River Laboratories, home page on the Internet, collaboration on Vsystem with the Hahn-Meitner Institute and a listing of January's experiments. 1 fig

  6. TASCC newsletter volume 8 no. 4

    International Nuclear Information System (INIS)

    Thomson, L.

    1994-04-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this April issue of TASCC is an update of the facility, news on the Penning-trap spectrometer, educators at CRL, AECB inspection and a listing of April's experiments. 1 fig

  7. PSI nuclear and particle physics newsletter 1990

    International Nuclear Information System (INIS)

    Frosch, R.; Furrer, F.

    1991-01-01

    This newsletter contains reports on nuclear and particle physics supported by the F1 division of PSI. Groups were invited to present new preliminary or final results obtained in 1990. As ususal, the contributions were not referred. They should be quoted after consultation with the authors only. (author) figs., tabs., refs

  8. ITER ITA newsletter. No. 27, January 2006

    International Nuclear Information System (INIS)

    2006-02-01

    This issue of ITER ITA (ITER transitional arrangements) newsletter contains concise information about two ITER related meetings including the twelfth ITER Negotiations Meeting and The Ninth Meeting of the ITPA Topical Group (TG) on Diagnostics was held at the National Fusion Research Centre (NFRC), Daejeon, Korea, from 10-14 October 2005

  9. ITER EDA newsletter. V. 8, no. 9

    International Nuclear Information System (INIS)

    1999-09-01

    This edition of the ITER EDA Newsletter contains a contribution by the ITER Director, R. Aymar, on the subject of developments in ITER Physics R and D report on the completion of the ITER central solenoid model coils installation by H. Tsuji, Head fo the Superconducting Magnet Laboratory at JAERI in Naka, Japan. Individual abstracts are prepared for each of the two articles

  10. IDRA Newsletter. Volume 44, No. 1

    Science.gov (United States)

    Goodman, Christie L., Ed.

    2017-01-01

    Each edition of the IDRA Newsletter strives to provide many different perspectives on the issues in education topics discussed and to define its significance in the state and national dialogue. This issue focuses on the Promise of Public Schooling and includes: (1) America Does Not Have to Stay Stuck at Losing One in Four High Schoolers (María…

  11. TASCC newsletter volume 9 no. 3

    International Nuclear Information System (INIS)

    Thomson, L.

    1995-03-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this March issue of TASCC is an update of the facility, the new Program Advisory Committee, a memo of understanding signed with the Centre Recherche Nucleaires, a demonstration of graphical analysis software and a listing of March's experiments. 1 fig

  12. TASCC newsletter volume 7 no. 4

    International Nuclear Information System (INIS)

    Thomson, L.

    1993-04-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in the April issue is information on damage tests of satellite instrumentation, general news on success of beams achieved, assessment by NPPAP panel on TASCC programs, staff changes and a listing of April's experiments. 2 figs

  13. Animal production and health newsletter. No. 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1985-01-01

    This Newsletter announces research coordination meetings, status of existing research coordinated research programmes on the use of isotope application in animal reproduction, nutrition and disease diagnostics. Training courses as well as new coordinated research programmes in the pipeline are also highlighted.

  14. TASCC newsletter volume 7 no. 11

    Energy Technology Data Exchange (ETDEWEB)

    Thomson, L

    1993-11-01

    A newsletter produced by Chalk River`s Tandem Accelerator Superconducting Cyclotron Facility. Included in this November issue of TASCC is an update of the facility, news of a purchase of phase-shifters and a listing of experiments run in November. 2 figs.

  15. TASCC newsletter volume 7 no. 12

    Energy Technology Data Exchange (ETDEWEB)

    Thomson, L

    1993-12-01

    A newsletter produced by Chalk River`s Tandem Accelerator Superconducting Cyclotron Facility. Included in this December issue of TASCC is an update of the facility, a year end review by the director and a listing of experiments carried out in December. 3 figs.

  16. TASCC newsletter volume 7 no. 10

    Energy Technology Data Exchange (ETDEWEB)

    Thomson, L

    1993-10-01

    A newsletter produced by Chalk River`s Tandem Accelerator Superconducting Cyclotron Facility. Included in this October issue of TASCC is an update of the facility report, ECR ion source development, new measurement of Carbon 10, Penning-trap mass spectrometer and a listing of October`s experiments. 2 figs.

  17. Nuclear Data Newsletter. Issue No. 15

    International Nuclear Information System (INIS)

    1991-03-01

    This issue of the Nuclear Data Newsletter (March 1991) gives information on the following topics: Data indexes and bibliographies, new data libraries received, selected new publications on nuclear data, related to the activity of the Nuclear Data Section of the IAEA

  18. TASCC newsletter volume 8 no. 4

    Energy Technology Data Exchange (ETDEWEB)

    Thomson, L

    1994-04-01

    A newsletter produced by Chalk River`s Tandem Accelerator Superconducting Cyclotron Facility. Included in this April issue of TASCC is an update of the facility, news on the Penning-trap spectrometer, educators at CRL, AECB inspection and a listing of April`s experiments. 1 fig.

  19. TASCC newsletter volume 7 no. 4

    Energy Technology Data Exchange (ETDEWEB)

    Thomson, L

    1993-04-01

    A newsletter produced by Chalk River`s Tandem Accelerator Superconducting Cyclotron Facility. Included in the April issue is information on damage tests of satellite instrumentation, general news on success of beams achieved, assessment by NPPAP panel on TASCC programs, staff changes and a listing of April`s experiments. 2 figs.

  20. TASCC newsletter volume 8 no. 9

    International Nuclear Information System (INIS)

    Thomson, L.

    1994-09-01

    A newsletter produced by Chalk River's Tandem Accelerator Superconducting Cyclotron Facility. Included in this September issue of TASCC is an update of the facility, winner of Nobel prize, dating of fossil seeds using Chlorine 36, promotion of TASCC at a local fair and a listing of September's experiments. 1 fig