281 results on '"Dates AN"'
Search Results
252. Wright's Eyes/ Voice/ Self.
- Author
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Dates-Ali, Angela
- Subjects
- WRIGHT'S Eyes/Voice/Self (Poem), DATES-Ali, Angela
- Abstract
The poem "Wright's Eyes/Voice/Self," by Angela Dates-Ali is presented. First Line: I spoke of guile, Marxism and falsity, Last Line: minds hiding under smoke clouds of denial.
- Published
- 2008
253. Council Activities at Midwinter Meeting 2008.
- Author
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Casey, Diane Dates
- Abstract
Information about several papers discussed during the Midwinter Meeting 2008 held in Philadelphia, Pennsylvania on January 11-16, 2008 is presented. During the event, Council I reported the performance of the American Library Association (ALA) throughout the fiscal period while Council II generated heavy debate over several issues.
- Published
- 2008
254. ALA Council Summary.
- Author
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Casey, Diane Dates
- Abstract
Information about several issues discussed at a meeting of a council of the American Library Association held on June 28, 2006 is presented. The American Library Association will assist government sponsored published research findings. The council has passed several resolutions including, adequate funding of all federal libraries and others.
- Published
- 2006
255. Make Your Vote Count.
- Author
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Casey, Diane Dates
- Abstract
The article reports on the upcoming election of the American Library Association (ALA) Council. It urges the members of the Association for Library Collections and Technical Services (ALCTS) to strengthen the ALCTS' voice on the floor of the council by voting for the candidates who are members of the ALCTS. The candidates that can understand the concerns of their division and can support their initiatives are suggested to be voted. The candidates' experiences in holding prominent elected division positions, such as section chairs, board of directors or division presidents are also some considerations.
- Published
- 2006
256. ALA Council Update.
- Author
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Casey, Diane Dates
- Abstract
This article discusses the proceedings of the American Library Association's (ALA) annual conference in Chicago, Illinois. There were two resolutions reached during the ALA Council that directly impact the Association for Library Collections and Technical Services. A request was made that the Machine Readable Form of Bibliographic Information (MARBI) expand the MARC 21 character set to include all of Unicode. A second resolution was presented that advocated the reduction of division membership fees for retired individuals. These resolutions came to the Council by way of membership meetings.
- Published
- 2005
257. MailBag.
- Author
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Gutierrez, Maria, LeValley, Karen, Torres, Jena, Dates, Lynn, Campbell, Susan, Penta, Melisa, Caulder, Mary Gimenez, Morita, Ryoichi, Henicle, Carol A., Yoacham, Pia, and Linton, Kelly
- Subjects
LETTERS to the editor - Abstract
Presents letters to the editor of "People" magazine. Readers' responses to an article about Jennifer Lopez, her marriage to Marc Anthony, and a future pregnancy; Criticism of the Anne Bird story "Scott's Sister Speaks"; Praise for Sandra Dee and Carnie Wilson.
- Published
- 2005
258. Book reviews.
- Author
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Dates, Jannette L.
- Subjects
- ENLIGHTENED Racism (Book)
- Abstract
Reviews the book `Enlightened Racism: The Cosby Show, Audiences, and the Myth of the American Dream,' by S. Jhally and J. Lewis.
- Published
- 1994
259. Review: The Tiwi of North Australia, Being a Palauan, the Cheyennes: Indians of the Great Plains, Bunyoro: An African Kingdom, Tepoztlan: Village in Mexico
- Author
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Dates, Charles E.
- Published
- 1980
- Full Text
- View/download PDF
260. CHILDHOOD.
- Author
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DATES, DAVID
- Published
- 1854
261. Letters to the Editor.
- Author
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Biesemeyer, Robert and Dates, Keela Marie
- Subjects
LETTERS to the editor ,ZONING law ,ROW houses ,MEDICAL care ,CONCERTS - Abstract
Several letters to the editor are presented in response to articles in previous issues which include an article on the approval of a variance that allows a 70-percent increase in townhouse units by the Wilmington Zoning Board of Appeals at Wilmington town beach, an article on the celebration of National Healthcare Decisions Day on April 16, 2010, and article on the second annual Concert for Jambo Jipya occurred in Saranac Lake, New York.
- Published
- 2010
262. Controlled Release Products for Managing Insect Pests
- Author
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FALEIRO, J. R., AL-SHAWAF, A. M., AL-DANDAN, A. M., AL-ODHAYB, A., AL-RUDAYNI, A., ABDALLAH, A. B., PEIXOTO, M. P., VARGAS, R., BOTTON, M., CHIDI, S., BORGES, R., MAFRA-NETO, A., 1 Centre for date Palm & dates in al-Hassa, Ministry of agriculture, saudi arabia, Ministry of agriculture in al-Hasa, saudi arabia, directorate of agriculture in al-Qassim, Ministry of agriculture, saudi arabia, Centre for date Palm & dates in al-Hassa, Ministry of agriculture, saudi arabia, instituto federal goiano, rio Verde Campus, go, Brazil, daniel K. inouye u. s. Pacific Basin agricultural research Center, usda ars, Hilo, Hi, u.s., MARCOS BOTTON, CNPUV, arysta lifescience, são Paulo, sP, Brazil, agenor Mafra-neto, isCa technologies, inc., 1230 spring st., riverside, Ca 92507, usa (corresponding author: president@iscatech.com)., and isCa tecnologias, ijui, rs, Brazil
- Subjects
Formulation technology ,Pest managements ,Insect Science ,Semiochemicals ,Attract and kill ,Agronomy and Crop Science ,Food Science ,Biotechnology - Abstract
From 1900–2000, the global human population grew by more than 400%, from 1.5 to 6.1 billion (Roser, 2015). The demands that the current population places upon global food supplies presents what may be one of the greatest challenges of the modern age. To support such a large population in a reliable, sustainable manner, productivity of agricultural crops will have to be improved significantly, most likely through multiple means (development of new, higher-yield crops; more efficient water use; improved cropping systems). One active area of research is the development of more effective methods of agricultural pest management.
- Published
- 2016
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263. The Black Image In the White Mind (Book).
- Author
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Dates, Jannette L. and Blanchard, Margaret A.
- Subjects
- *
RACE discrimination - Abstract
Reviews the book 'The Black Image in the White Mind: Media and Race in America,' by Robert M. Entman and Andrew Rojecki.
- Published
- 2002
264. casegoods.
- Author
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Tobin, Carol and Dates, Iris
- Subjects
CASE goods ,ARCHITECTURAL design ,DESIGN - Abstract
The article evaluates several case goods including coalesse denizen designed by Carol Tobin, HBF Linea designed by Carol Tobin and bernhardt outline designed by Iris Dates.
- Published
- 2009
265. Ownership of high-risk ('vicious') dogs as a marker for deviant behaviors: implications for risk assessment.
- Author
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Barnes JE, Boat BW, Putnam FW, Dates HF, and Mahlman AR
- Abstract
This study examined the association between ownership of high-risk ('vicious') dogs and the presence of deviant behaviors in the owners as indicated by court convictions. We also explored whether two characteristics of dog ownership (abiding licensing laws and choice of breed) could be useful areas of inquiry when assessing risk status in settings where children are present. Our matched sample consisted of 355 owners of either licensed or cited dogs that represented high or low-risk breeds. Categories of criminal convictions examined were aggressive crimes, drugs, alcohol, domestic violence, crimes involving children, firearm convictions, and major and minor traffic citations. Owners of cited high-risk ('vicious') dogs had significantly more criminal convictions than owners of licensed low-risk dogs. Findings suggest that the ownership of a high-risk ('vicious') dog can be a significant marker for general deviance and should be an element considered when assessing risk for child endangerment. [ABSTRACT FROM AUTHOR]
- Published
- 2006
- Full Text
- View/download PDF
266. Symposium: Journalism and Mass Communication Education at the Crossroads.
- Author
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Cohen, Jeremy, Reese, Stephen D., Liebler, Carol, Brancaccio, David, Rakow, Lana F., Ghiglione, Loren, Hamilton, John Maxwell, Jacobson, Tom, Dates, Jannette L., and Johnson, Pilar Keagy
- Subjects
- *
JOURNALISM & education , *COMMUNICATION , *EDUCATION research , *HIGHER education - Abstract
Focuses on the issues and problems in the field of journalism and mass communication in the United States. Overview of the commentaries from several educators; Assessment of the pedagogical approaches applied in teaching the disciplines in Higher Education; Educational and career background of the symposium contributors.
- Published
- 2001
- Full Text
- View/download PDF
267. Zaatari camp, rethinking the camp through refugees' socio-spatial practices
- Author
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Doraï, Kamel, Institut Français du Proche-Orient (IFPO), Centre National de la Recherche Scientifique (CNRS)-MIN AFF ETRANG, International conference City Dates, American University of Beirut, ANR-15-CE28-0005,LAJEH,Temps des conflits / temps des migration : Réflexions sur les catégories et la généalogie des migrations au Moyen-Orient(2015), Doraï, Kamel, and Inégalités, discriminations, intégration - Temps des conflits / temps des migration : Réflexions sur les catégories et la généalogie des migrations au Moyen-Orient - - LAJEH2015 - ANR-15-CE28-0005 - AAPG2015 - VALID
- Subjects
[SHS.GEO] Humanities and Social Sciences/Geography ,[SHS.GEO]Humanities and Social Sciences/Geography ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2019
268. New data for the Early Upper Paleolithic of Kostenki (Russia)
- Author
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Andrei Sinitsyn, Thibaut Devièse, Natasha Reynolds, Mikhail V. Sablin, Thomas Higham, Alexander Bessudnov, Rob Dinnis, Abi Pate, British Museum, Institute for the History of Material Culture [St Petersburg], the Russian Academy of Sciences [Moscow, Russia] (RAS), De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie (PACEA), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), School of Archaeology [Oxford], University of Oxford, Zoological Institute, Russian Academy of Sciences [Moscow] (RAS), This research was supported by the Leverhulme Trust (RPG-2012-800). A.B.'s work was supported by grants RFBR18-39-20009 and RSF18-78-00136, and by state assignment 0184-2018-0012. NR was supported during the writing of this paper by a Postdoctoral Study Grant from the Fondation Fyssen and the European Union's Horizon 2020 research and innovation programme under Marie Skłodowska-Curie grant agreement No 747400. A.S. acknowledges grant RFBR17-06-00319a and state assignment 0184-2018-0012, and we also acknowledge the participation of ZIN RAS (state assignment АААА-А17-117022810195-3). The research that enabled the production of HYP radiocarbon dates came from the European Research Council under the European Union's Seventh Framework Programme (FP7/2007-2013), ERC grant 324139 'PalaeoChron', which also supported N.R., T.D. and T.H., European Project: 324139,EC:FP7:ERC,ERC-2012-ADG_20120411,PALAEOCHRON(2013), European Project: 747400,PeOPLE, and University of Oxford [Oxford]
- Subjects
Radiocarbon dating ,Bladelet technology ,010506 paleontology ,Neanderthal ,[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory ,Archaeological record ,Eastern Europe ,01 natural sciences ,law.invention ,law ,biology.animal ,Assemblage (archaeology) ,0601 history and archaeology ,Ecology, Evolution, Behavior and Systematics ,0105 earth and related environmental sciences ,060101 anthropology ,biology ,Anatomically modern humans ,06 humanities and the arts ,Archaeology ,Geography ,Early Upper Palaeolithic ,Anthropology ,Upper Paleolithic ,Period (geology) ,Kostenki ,Aurignacian ,Chronology - Abstract
Several questions remain regarding the timing and nature of the Neanderthal-anatomically modern human (AMH) transition in Europe. The situation in Eastern Europe is generally less clear due to the relatively few sites and a dearth of reliable radiocarbon dates. Claims have been made for both notably early AMH and notably late Neanderthal presence, as well as for early AMH (Aurignacian) dispersal into the region from Central/Western Europe. The Kostenki-Borshchevo complex (European Russia) of Early Upper Paleolithic (EUP) sites offers high-quality data to address these questions. Here we revise the chronology and cultural status of the key sites of Kostenki 17 and Kostenki 14. The Kostenki 17/II lithic assemblage shares important features with Proto-Aurignacian material, strengthening an association with AMHs. New radiocarbon dates for Kostenki 17/II of ∼41–40 ka cal BP agree with new dates for the recently excavated Kostenki 14/IVw, which shows some similarities to Kostenki 17/II. Dates of ≥41 ka cal BP from other Kostenki sites cannot be linked to diagnostic archaeological material, and therefore cannot be argued to date AMH occupation. Kostenki 14's Layer in Volcanic Ash assemblage, on the other hand, compares to Early Aurignacian material. New radiocarbon dates targeting diagnostic lithics date to 39–37 ka cal BP. Overall, Kostenki's early EUP is in good agreement with the archaeological record further west. Our results are therefore consistent with models predicting interregional penecontemporaneity of diagnostic EUP assemblages. Most importantly, our work highlights ongoing challenges for reliably radiocarbon dating the period. Dates for Kostenki 14 agreed with the samples' chronostratigraphic positions, but standard pre-treatment methods consistently produced incorrect ages for Kostenki 17/II. Extraction of hydroxyproline from bone collagen using preparative high-performance liquid chromatography, however, yielded results consistent with the samples' chronostratigraphic position and with the layer's archaeological contents. This suggests that for some sites compound-specific techniques are required to build reliable radiocarbon chronologies.
- Published
- 2019
- Full Text
- View/download PDF
269. Requalification of SPERT (Special Power Excursion Reactor Test) pins for use in university reactors
- Author
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Dates, L
- Published
- 1986
- Full Text
- View/download PDF
270. HAZARDS SUMMARY REPORT ON THE OXIDE CRITICAL EXPERIMENTS
- Author
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Dates, L.
- Published
- 1957
- Full Text
- View/download PDF
271. DESIGN, CONSTRUCTION DETAILS, AND PREOPERATIONAL TESTING OF AN ARGONNE FAST CRITICAL FACILITY.
- Author
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Dates, L
- Published
- 1966
- Full Text
- View/download PDF
272. Changes in anthocyanin production during domestication of Citrus
- Author
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Andrés Garcia-Lor, Eugenio Butelli, Chandrika Ramadugu, Manjunath L. Keremane, Robert Krueger, Concetta Licciardello, Giuseppina Las Casas, Luis Navarro, Giuseppe Reforgiato Recupero, Xiuxin Deng, Yann Froelicher, Anne Laure Fanciullino, Cathie Martin, Qiang Xu, Lionel Hill, John Innes Centre, Institut de Recherche pour le Développement (IRD [Nouvelle-Calédonie]), Centro di Ricerca per l’Agrumicoltura e le Colture Mediterranee, Consiglio per la Ricerca in Agricoltura e l’analisi dell’economia agraria (CREA), Dipartimento di Agricoltura, Alimentazione e Ambiente, University of Catania [Italy], United States Department of Agriculture-Agricultural Research Service National Clonal Germplasm Repository for Citrus and Dates, Riverside, United States Department of Agriculture, University of California [Riverside] (UCR), University of California, Key Laboratory of Horticultural Plant Biology, Huazhong Agricultural University, Unité de recherche Plantes et Systèmes de Culture Horticoles (PSH), Institut National de la Recherche Agronomique (INRA), Amélioration Génétique et Adaptation des Plantes méditerranéennes et Tropicales Corse - Antenne Corse (AGAP-Corse), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria (CREA), University of Catania, UR 1390 Amélioration Génétique et Adaptation des Plantes méditerranéennes et Tropicales Corse - Antenne Corse, Institut de Recherche pour le Développement ( IRD [Nouvelle-Calédonie] ), Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria ( CREA ), University of California Riverside ( UCR ), Unité de recherche Plantes et Systèmes de Culture Horticoles ( PSH ), Institut National de la Recherche Agronomique ( INRA ), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement
- Subjects
0301 basic medicine ,[ SDV.BV ] Life Sciences [q-bio]/Vegetal Biology ,Citrus ,approche génétique ,Physiology ,MYB transcription factors ,F60 - Physiologie et biochimie végétale ,lemon ,citron ,Plant Science ,Orange (colour) ,Biology ,citrus ,Anthocyanins ,Domestication ,03 medical and health sciences ,chemistry.chemical_compound ,food ,anthocyanine ,Genus ,collection de variétés ,Botany ,citrus reticulata ,Genetics ,[SDV.BV]Life Sciences [q-bio]/Vegetal Biology ,MYB ,Cultivar ,mutant ,pomelo star ruby ,Hybridization ,fungi ,food and beverages ,F70 - Taxonomie végétale et phytogéographie ,anthocyanins ,food.food ,citrus maxima ,Citrus medica ,030104 developmental biology ,Phylogenetic analysis ,chemistry ,Anthocyanin ,Subgenus ,F30 Plant genetics and breeding - Abstract
Mandarin (Citrus reticulata), citron (Citrus medica), and pummelo (Citrus maxima) are important species of the genus Citrus and parents of the interspecific hybrids that constitute the most familiar commercial varieties of Citrus: sweet orange, sour orange, clementine, lemon, lime, and grapefruit. Citron produces anthocyanins in its young leaves and flowers, as do species in genera closely related to Citrus, but mandarins do not, and pummelo varieties that produce anthocyanins have not been reported. We investigated the activity of the Ruby gene, which encodes a MYB transcription factor controlling anthocyanin biosynthesis, in different accessions of a range of Citrus species and in domesticated cultivars. A white mutant of lemon lacks functional alleles of Ruby, demonstrating that Ruby plays an essential role in anthocyanin production in Citrus. Almost all the natural variation in pigmentation by anthocyanins in Citrus species can be explained by differences in activity of the Ruby gene, caused by point mutations and deletions and insertions of transposable elements. Comparison of the allelic constitution of Ruby in different species and cultivars also helps to clarify many of the taxonomic relationships in different species of Citrus, confirms the derivation of commercial varieties during domestication, elucidates the relationships within the subgenus Papeda, and allows a new genetic classification of mandarins.
- Published
- 2017
- Full Text
- View/download PDF
273. Acta Horticulturae
- Author
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Mari C. Vives, Tracy L. Kahn, Sarah Ashmore, Gema Ancillo, Kim E. Hummer, Gayle M. Volk, François Luro, Mikeal L. Roose, Xiuxin Deng, Richard E. Lee, Frederick G. Gmitter, Marcos Antonio Machado, Sabater-Munoz, Beatriz, Moreno, Pedro, Pena, Leandro, Navarro, Luis, Univ Calif Riverside, Dept Bot & Plant Sci, Riverside, CA 92521 USA, Partenaires INRAE, Univ Florida, Citrus Res & Educ Ctr, Lake Alfred, FL USA, ARS, USDA, Natl Clonal Germplasm Repository Citrus & Dates, Riverside, CA USA, ARS, USDA, Natl Clonal Germplasm Repository, Corvallis, OR 97333 USA, Ctr APTA Citros Sylvio Moreira IAC, Lab Biotecnol, Cordeiropolis, Brazil, Griffith Univ, Sch Biomol & Phys Sci, Nathan, Qld 4111, Australia, Griffith Univ, Environm Futures Ctr, Nathan, Qld 4111, Australia, Huazhong Agr Univ HZAU, Coll Hort & Forestry, Minist Educ, Key Lab Hort Plant Biol, Wuhan, Hubei, Peoples R China, Inst Valenciano Invest Agr IVIA, Ctr Protecc Vegetal & Biotecnol, Valencia, Spain, ARS, USDA, NCGRP, Plant Germplasm Preservat Res Unit, Ft Collins, CO USA, Station de recherches agronomiques de San Giuliano, Institut National de la Recherche Agronomique (INRA), and International Society of Citriculture (ISC). INT.
- Subjects
encapsulation-dehydration ,0106 biological sciences ,Germplasm ,Engineering ,[SDV]Life Sciences [q-bio] ,shoot tips ,in-vitro ,grapefruit ,Horticulture ,Safeguarding ,lemons ,cryopreservation ,01 natural sciences ,crop wild relatives ,Crop ,recovery ,Agricultural science ,Genetic resources ,[SDV.BV]Life Sciences [q-bio]/Vegetal Biology ,China ,2. Zero hunger ,oranges ,business.industry ,Agroforestry ,04 agricultural and veterinary sciences ,germplasm ,15. Life on land ,International Treaty on Plant Genetic Resources for Food and Agriculture ,Center of origin ,Crop diversity ,[SDE]Environmental Sciences ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,business ,010606 plant biology & botany - Abstract
International audience; Citrus is an economically important world tree fruit crop with production in more than 146 countries. The center of origin for citrus is considered to be Southeastern Asia including southern China, northeastern India, and Malaysia, with secondary centers in surrounding areas. Novel and commercially significant scion and rootstock cultivars originating by natural mutation or directed hybridization were introduced during the past century. Significant genetic resource collections exist in many countries. A global citrus germplasm network was developed in 1997. Now that the International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGR) has recognized Citrus as an Annex 1 crop, a global conservation strategy needs to be established. The objective of this workshop was to plan the development of this strategy. More than 60 delegates attended with representation from Argentina, Australia, Bhutan, Brazil, China, Columbia, France, Iran, Israel, Italy, Japan, Mexico, Morocco, Portugal, Spain, Turkey, UAE, US, and Vietnam. Nine oral presentations were given describing multiple aspects of genebank operations, technologies and gaps in Brazil, China, France, Australia, Spain, and the US. A draft genebank survey questionnaire was presented to the group and comments and suggested changes for improvement were received. Citrus curators and genebank managers throughout the world will be surveyed for the status and health of their collections. The surveys will be received and compiled by collaborators at the University of California, Riverside, and at the USDA ARS Riverside. This information will be compiled and reported. The strategy will include background and history of the development of Citrus as a cultivated crop, conservation protocols, vulnerabilities, and recommendations for safeguarding Citrus germplasm. This strategy will be implemented through the Global Crop Diversity Trust with collaboration from the International Society for Horticultural Science and the international Citrus research community.
- Published
- 2015
- Full Text
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274. Massachusetts volunteer monitor's guidebook to quality assurance project plans
- Author
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Massachusetts. Department of Environmental Protection. Office of Watershed Management., Godfrey, Paul J., Schoen, Jerome., and Dates, Geoff.
- Subjects
Water quality -- Massachusetts -- Measurement ,Environmental protection -- Massachusetts -- Citizen participation ,Quality assurance -- Massachusetts -- Planning ,Volunteer workers in conservation of natural resources -- Guidebooks ,Wetlands -- Massachusetts - Published
- 2001
275. Storage containers for radioactive material
- Author
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Dates, Leon [Elmwood Park, IL]
- Published
- 1981
276. Storage containers for radioactive material
- Author
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Dates, L
- Published
- 1980
277. Heterogeneity of tethered agonist signaling in adhesion G protein-coupled receptors.
- Author
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Dates AN, Jones DTD, Smith JS, Skiba MA, Rich MF, Burruss MM, Kruse AC, and Blacklow SC
- Subjects
- Humans, HEK293 Cells, Ligands, Receptors, G-Protein-Coupled metabolism, Receptors, G-Protein-Coupled agonists, Signal Transduction drug effects
- Abstract
Adhesion G protein-coupled receptor (aGPCR) signaling influences development and homeostasis in a wide range of tissues. In the current model for aGPCR signaling, ligand binding liberates a conserved sequence that acts as an intramolecular, tethered agonist (TA), yet this model has not been evaluated systematically for all aGPCRs. Here, we assessed the TA-dependent activities of all 33 aGPCRs in a suite of transcriptional reporter, G protein activation, and β-arrestin recruitment assays using a new fusion protein platform. Strikingly, only ∼50% of aGPCRs exhibited robust TA-dependent activation, and unlike other GPCR families, aGPCRs showed a notable preference for G
12/13 signaling. AlphaFold2 predictions assessing TA engagement in the predicted intramolecular binding pocket aligned with the TA dependence of the cellular responses. This dataset provides a comprehensive resource to inform the investigation of all human aGPCRs and for targeting aGPCRs therapeutically., Competing Interests: Declaration of interests S.C.B. is on the board of directors for the non-profit Revson Foundation and non-profit Institute for Protein Innovation, is on the scientific advisory board for and receives funding from Erasca, Inc. for an unrelated project, is an advisor to MPM Capital, and is a consultant for Scorpion Therapeutics, Odyssey Therapeutics, Droia Ventures, and Ayala Pharmaceuticals for unrelated projects. A.C.K. is a co-founder and consultant for Tectonic Therapeutic and Seismic Therapeutic and for the Institute for Protein Innovation, a non-profit research institute. J.S.S. has received consulting fees from Biogen for an unrelated project., (Copyright © 2024 Elsevier Ltd. All rights reserved.)- Published
- 2024
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278. The M3 Muscarinic Acetylcholine Receptor Can Signal through Multiple G Protein Families.
- Author
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Smith JS, Hilibrand AS, Skiba MA, Dates AN, Calvillo-Miranda VG, and Kruse AC
- Subjects
- Animals, Humans, CHO Cells, Cricetulus, GTP-Binding Protein alpha Subunits, Gq-G11 metabolism, HEK293 Cells, GTP-Binding Proteins metabolism, Receptor, Muscarinic M3 metabolism, Signal Transduction physiology
- Abstract
The M3 muscarinic acetylcholine receptor (M
3 R) is a G protein-coupled receptor (GPCR) that regulates important physiologic processes, including vascular tone, bronchoconstriction, and insulin secretion. It is expressed on a wide variety of cell types, including pancreatic beta, smooth muscle, neuronal, and immune cells. Agonist binding to the M3 R is thought to initiate intracellular signaling events primarily through the heterotrimeric G protein Gq. However, reports differ on the ability of M3 R to couple to other G proteins beyond Gq. Using members from the four primary G protein families (Gq, Gi, Gs, and G13) in radioligand binding, GTP turnover experiments, and cellular signaling assays, including live cell G protein dissociation and second messenger assessment of cAMP and inositol trisphosphate, we show that other G protein families, particularly Gi and Gs, can also interact with the human M3 R. We further show that these interactions are productive as assessed by amplification of classic second messenger signaling events. Our findings demonstrate that the M3 R is more promiscuous with respect to G protein interactions than previously appreciated. SIGNIFICANCE STATEMENT: The study reveals that the human M3 muscarinic acetylcholine receptor (M3 R), known for its pivotal roles in diverse physiological processes, not only activates intracellular signaling via Gq as previously known but also functionally interacts with other G protein families such as Gi and Gs, expanding our understanding of its versatility in mediating cellular responses. These findings signify a broader and more complex regulatory network governed by M3 R and have implications for therapeutic targeting., (Copyright © 2024 by The Author(s).)- Published
- 2024
- Full Text
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279. A spatiotemporal Notch interaction map from plasma membrane to nucleus.
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Martin AP, Bradshaw GA, Eisert RJ, Egan ED, Tveriakhina L, Rogers JM, Dates AN, Scanavachi G, Aster JC, Kirchhausen T, Kalocsay M, and Blacklow SC
- Subjects
- Ligands, Cell Membrane metabolism, Signal Transduction, Receptor, Notch1 genetics, Amyloid Precursor Protein Secretases genetics, Amyloid Precursor Protein Secretases metabolism, Receptors, Notch genetics, Receptors, Notch metabolism
- Abstract
Notch signaling relies on ligand-induced proteolysis of the transmembrane receptor Notch to liberate a nuclear effector that drives cell fate decisions. Upon ligand binding, sequential cleavage of Notch by the transmembrane protease ADAM10 and the intracellular protease γ-secretase releases the Notch intracellular domain (NICD), which translocates to the nucleus and forms a complex that induces target gene transcription. To map the location and timing of the individual steps required for the proteolysis and movement of Notch from the plasma membrane to the nucleus, we used proximity labeling with quantitative, multiplexed mass spectrometry to monitor the interaction partners of endogenous NOTCH2 after ligand stimulation in the presence of a γ-secretase inhibitor and as a function of time after inhibitor removal. Our studies showed that γ-secretase-mediated cleavage of NOTCH2 occurred in an intracellular compartment and that formation of nuclear complexes and recruitment of chromatin-modifying enzymes occurred within 45 min of inhibitor washout. These findings provide a detailed spatiotemporal map tracking the path of Notch from the plasma membrane to the nucleus and identify signaling events that are potential targets for modulating Notch activity.
- Published
- 2023
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280. Tethered agonist activated ADGRF1 structure and signalling analysis reveal basis for G protein coupling.
- Author
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Jones DTD, Dates AN, Rawson SD, Burruss MM, Lipper CH, and Blacklow SC
- Subjects
- Binding Sites, GTP-Binding Proteins genetics, GTP-Binding Proteins metabolism, Protein Domains, Protein Binding, Receptors, G-Protein-Coupled metabolism, Signal Transduction
- Abstract
Adhesion G Protein Coupled Receptors (aGPCRs) have evolved an activation mechanism to translate extracellular force into liberation of a tethered agonist (TA) to effect cell signalling. We report here that ADGRF1 can signal through all major G protein classes and identify the structural basis for a previously reported Gα
q preference by cryo-EM. Our structure shows that Gαq preference in ADGRF1 may derive from tighter packing at the conserved F569 of the TA, altering contacts between TM helix I and VII, with a concurrent rearrangement of TM helix VII and helix VIII at the site of Gα recruitment. Mutational studies of the interface and of contact residues within the 7TM domain identify residues critical for signalling, and suggest that Gαs signalling is more sensitive to mutation of TA or binding site residues than Gαq . Our work advances the detailed molecular understanding of aGPCR TA activation, identifying features that potentially explain preferential signal modulation., (© 2023. The Author(s).)- Published
- 2023
- Full Text
- View/download PDF
281. The structure of the yeast Ctf3 complex.
- Author
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Hinshaw SM, Dates AN, and Harrison SC
- Subjects
- Kinetochores ultrastructure, Models, Molecular, Protein Binding, Saccharomyces cerevisiae Proteins ultrastructure, Kinetochores chemistry, Kinetochores metabolism, Multiprotein Complexes metabolism, Saccharomyces cerevisiae metabolism, Saccharomyces cerevisiae Proteins chemistry, Saccharomyces cerevisiae Proteins metabolism
- Abstract
Kinetochores are the chromosomal attachment points for spindle microtubules. They are also signaling hubs that control major cell cycle transitions and coordinate chromosome folding. Most well-studied eukaryotes rely on a conserved set of factors, which are divided among two loosely-defined groups, for these functions. Outer kinetochore proteins contact microtubules or regulate this contact directly. Inner kinetochore proteins designate the kinetochore assembly site by recognizing a specialized nucleosome containing the H3 variant Cse4/CENP-A. We previously determined the structure, resolved by cryo-electron microscopy (cryo-EM), of the yeast Ctf19 complex (Ctf19c, homologous to the vertebrate CCAN), providing a high-resolution view of inner kinetochore architecture (Hinshaw and Harrison, 2019). We now extend these observations by reporting a near-atomic model of the Ctf3 complex, the outermost Ctf19c sub-assembly seen in our original cryo-EM density. The model is sufficiently well-determined by the new data to enable molecular interpretation of Ctf3 recruitment and function., Competing Interests: SH, AD, SH No competing interests declared, (© 2019, Hinshaw et al.)
- Published
- 2019
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