Search Results - (Author, Cooperation:J. Ball)
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1Staff View
Publication Date: 2018-03-06Publisher: Oxford University PressPrint ISSN: 1525-2167Electronic ISSN: 1532-2114Topics: MedicinePublished by: -
2Brian J. Lester, Yiheng Lin, Mark O. Brown, Adam M. Kaufman, Randall J. Ball, Emanuel Knill, Ana M. Rey, and Cindy A. Regal
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-05-11Publisher: American Physical Society (APS)Print ISSN: 0031-9007Electronic ISSN: 1079-7114Topics: PhysicsKeywords: Atomic, Molecular, and Optical PhysicsPublished by: -
3T. Spohn ; J. Knollenberg ; A. J. Ball ; M. Banaszkiewicz ; J. Benkhoff ; M. Grott ; J. Grygorczuk ; C. Huttig ; A. Hagermann ; G. Kargl ; E. Kaufmann ; N. Komle ; E. Kuhrt ; K. J. Kossacki ; W. Marczewski ; I. Pelivan ; R. Schrodter ; K. Seiferlin
American Association for the Advancement of Science (AAAS)
Published 2015Staff ViewPublication Date: 2015-08-01Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
4O. Hen ; M. Sargsian ; L. B. Weinstein ; E. Piasetzky ; H. Hakobyan ; D. W. Higinbotham ; M. Braverman ; W. K. Brooks ; S. Gilad ; K. P. Adhikari ; J. Arrington ; G. Asryan ; H. Avakian ; J. Ball ; N. A. Baltzell ; M. Battaglieri ; A. Beck ; S. May-Tal Beck ; I. Bedlinskiy ; W. Bertozzi ; A. Biselli ; V. D. Burkert ; T. Cao ; D. S. Carman ; A. Celentano ; S. Chandavar ; L. Colaneri ; P. L. Cole ; V. Crede ; A. D'Angelo ; R. De Vita ; A. Deur ; C. Djalali ; D. Doughty ; M. Dugger ; R. Dupre ; H. Egiyan ; A. El Alaoui ; L. El Fassi ; L. Elouadrhiri ; G. Fedotov ; S. Fegan ; T. Forest ; B. Garillon ; M. Garcon ; N. Gevorgyan ; Y. Ghandilyan ; G. P. Gilfoyle ; F. X. Girod ; J. T. Goetz ; R. W. Gothe ; K. A. Griffioen ; M. Guidal ; L. Guo ; K. Hafidi ; C. Hanretty ; M. Hattawy ; K. Hicks ; M. Holtrop ; C. E. Hyde ; Y. Ilieva ; D. G. Ireland ; B. I. Ishkanov ; E. L. Isupov ; H. Jiang ; H. S. Jo ; K. Joo ; D. Keller ; M. Khandaker ; A. Kim ; W. Kim ; F. J. Klein ; S. Koirala ; I. Korover ; S. E. Kuhn ; V. Kubarovsky ; P. Lenisa ; W. I. Levine ; K. Livingston ; M. Lowry ; H. Y. Lu ; I. J. MacGregor ; N. Markov ; M. Mayer ; B. McKinnon ; T. Mineeva ; V. Mokeev ; A. Movsisyan ; C. Munoz Camacho ; B. Mustapha ; P. Nadel-Turonski ; S. Niccolai ; G. Niculescu ; I. Niculescu ; M. Osipenko ; L. L. Pappalardo ; R. Paremuzyan ; K. Park ; E. Pasyuk ; W. Phelps ; S. Pisano ; O. Pogorelko ; J. W. Price ; S. Procureur ; Y. Prok ; D. Protopopescu ; A. J. Puckett ; D. Rimal ; M. Ripani ; B. G. Ritchie ; A. Rizzo ; G. Rosner ; P. Roy ; P. Rossi ; F. Sabatie ; D. Schott ; R. A. Schumacher ; Y. G. Sharabian ; G. D. Smith ; R. Shneor ; D. Sokhan ; S. S. Stepanyan ; S. Stepanyan ; P. Stoler ; S. Strauch ; V. Sytnik ; M. Taiuti ; S. Tkachenko ; M. Ungaro ; A. V. Vlassov ; E. Voutier ; N. K. Walford ; X. Wei ; M. H. Wood ; S. A. Wood ; N. Zachariou ; L. Zana ; Z. W. Zhao ; X. Zheng ; I. Zonta
American Association for the Advancement of Science (AAAS)
Published 2014Staff ViewPublication Date: 2014-10-18Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
5Aiken, L. H., Sloane, D. M., Ball, J., Bruyneel, L., Rafferty, A. M., Griffiths, P.
BMJ Publishing
Published 2018Staff ViewPublication Date: 2018-01-12Publisher: BMJ PublishingElectronic ISSN: 2044-6055Topics: MedicineKeywords: Open access, Press releases, NursingPublished by: -
6Peterson, A. G. ; Ball, J. T. ; Luo, Y. ; Field, C. B. ; Curtis, P. S. ; Griffin, K. L. ; Gunderson, C. A. ; Norby, R. J. ; Tissue, D. T. ; Forstreuter, M. ; Rey, A. ; Vogel, C. S. ; Participants, Cmeal
Oxford, UK : Blackwell Science Ltd
Published 1999Staff ViewISSN: 1365-3040Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: Previous modelling exercises and conceptual arguments have predicted that a reduction in biochemical capacity for photosynthesis (Aarea) at elevated CO2 may be compensated by an increase in mesophyll tissue growth if the total amount of photosynthetic machinery per unit leaf area is maintained (i.e. morphological upregulation). The model prediction was based on modelling photosynthesis as a function of leaf N per unit leaf area (Narea), where Narea = Nmass×LMA. Here, Nmass is percentage leaf N and is used to estimate biochemical capacity and LMA is leaf mass per unit leaf area and is an index of leaf morphology. To assess the relative importance of changes in biochemical capacity versus leaf morphology we need to control for multiple correlations that are known, or that are likely to exist between CO2 concentration, Narea, Nmass, LMA and Aarea. Although this is impractical experimentally, we can control for these correlations statistically using systems of linear multiple-regression equations. We developed a linear model to partition the response of Aarea to elevated CO2 into components representing the independent and interactive effects of changes in indexes of biochemical capacity, leaf morphology and CO2 limitation of photosynthesis. The model was fitted to data from three pine and seven deciduous tree species grown in separate chamber-based field experiments. Photosynthetic enhancement at elevated CO2 due to morphological upregulation was negligible for most species. The response of Aarea in these species was dominated by the reduction in CO2 limitation occurring at higher CO2 concentration. However, some species displayed a significant reduction in potential photosynthesis at elevated CO2 due to an increase in LMA that was independent of any changes in Narea. This morphologically based inhibition of Aarea combined additively with a reduction in biochemical capacity to significantly offset the direct enhancement of Aarea caused by reduced CO2 limitation in two species. This offset was 100% for Acer rubrum, resulting in no net effect of elevated CO2 on Aarea for this species, and 44% for Betula pendula. This analysis shows that interactions between biochemical and morphological responses to elevated CO2 can have important effects on photosynthesis.Type of Medium: Electronic ResourceURL: -
7Staff View
ISSN: 1365-3040Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: Abstract Coefficients describing the sensitivity of the rate of photosynthetic carbon dioxide fixation to small changes in the stomatal conductance and boundary layer conductance are derived. These sensitivity or ‘control’ coefficients, together with those for the carboxylase and oxygenase activities of ribulose 1,5-bisphosphate carboxylase/oxygenase, are calculated from standard gas exchange data and apply under conditions where leaf temperature and water vapour concentration at the leaf surface remain largely constant. It is shown that the magnitude of the control coefficients depends on conditions such as photon flux density, ambient CO2 concentration and relative humidity at the leaf surface. The extension of this analysis to encompass the sensitivity of the photosynthetic fluxes to changes in enzyme concentrations and kinetic properties is also discussed.Type of Medium: Electronic ResourceURL: -
8GRIFFIN, K. L. ; ROSS, P. D. ; SIMS, D.A. ; LUO, Y. ; SEEMANN, J. R. ; FOX, C. A. ; BALL, J. T.
Oxford, UK : Blackwell Publishing Ltd
Published 1996Staff ViewISSN: 1365-3040Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: We describe the use of a unique plant growth facility, which has as its centerpiece four ‘EcoCELLs’, or 5x7 m mesocosms designed as open-flow, mass-balance systems for the measurement of carbon, water and trace gas fluxes. This system is unique in that it was conceived specifically to bridge the gap between measurement scales during long-term experiments examining the function and development of model ecosystems. There are several advantages to using EcoCELLs, including (i) the same theory of operation as leaf level gas exchange systems, but with continuous operation at a much larger scale: (ii) the ability to independently evaluate canopy-level and ecosystem models; (iii) simultaneous manipulation of environmental factors and measurement of system-level responses, and (iv) maximum access to, and manipulation of, a large rooting volume.In addition to discussing the theory, construction and relative merits of EcoCELLs, we describe the calibration and use of the EcoCELLs during a ‘proof of concept’ experiment. This experiment involved growing soybeans under two ambient CO2 concentrations (−360 and 710μmol mol−1. During this experiment, we asked ‘How accurate is the simplest model that can be used to scale from leaf-level to canopy-level responses?’ in order to illustrate the utility of the EcoCELLs in validating canopy-scale models.Type of Medium: Electronic ResourceURL: -
9Cheng, Weixin ; Sims, Daniel A. ; Luo, Yiqi ; Johnson, Dale W. ; Ball, J. Timothy ; Coleman, James S.
Oxford, UK : Blackwell Science Ltd
Published 2000Staff ViewISSN: 1365-2486Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyEnergy, Environment Protection, Nuclear Power EngineeringGeographyNotes: Studies have suggested that more carbon is fixed due to a large increase in photosynthesis in plant–soil systems exposed to elevated CO2 than could subsequently be found in plant biomass and soils –- the locally missing carbon phenomenon. To further understand this phenomenon, an experiment was carried out using EcoCELLs which are open-flow, mass-balance systems at the mesocosm scale. Naturally occurring 13C tracers were also used to separately measure plant-derived carbon and soil-derived carbon. The experiment included two EcoCELLs, one under ambient atmospheric CO2 and the other under elevated CO2 (ambient plus 350 μL L− 1). By matching carbon fluxes with carbon pools, the issue of locally missing carbon was investigated. Flux-based net primary production (NPPf) was similar to pool-based primary production (NPPp) under ambient CO2, and the discrepancy between the two carbon budgets (12 g C m− 2, or 4% of NPPf) was less than measurement errors. Therefore, virtually all carbon entering the system under ambient CO2 was accounted for at the end of the experiment. Under elevated CO2, however, the amount of NPPf was much higher than NPPp, resulting in missing carbon of approximately 80 g C m− 2 or 19% of NPPf which was much higher than measurement errors. This was additional to the 96% increase in rhizosphere respiration and the 50% increase in root growth, two important components of locally missing carbon. The mystery of locally missing carbon under elevated CO2 remains to be further investigated. Volatile organic carbon, carbon loss due to root washing, and measurement errors are discussed as some of the potential contributing factors.Type of Medium: Electronic ResourceURL: -
10Peterson, Andrew G. ; Ball, J. Timothy ; Luo, YiqI. ; Field, Christopher B. ; Reich, Peter B. ; Curtis, Peter S. ; Griffin, Kevin L. ; Gunderson, Carla A. ; Norby, Richard J. ; Tissue, David T. ; Forstreuter, Manfred ; Rey, AnA. ; Vogel, Christoph S. ; Participants, Cmeal
Oxford, UK : Blackwell Science Ltd
Published 1999Staff ViewISSN: 1365-2486Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyEnergy, Environment Protection, Nuclear Power EngineeringGeographyNotes: Estimation of leaf photosynthetic rate (A) from leaf nitrogen content (N) is both conceptually and numerically important in models of plant, ecosystem, and biosphere responses to global change. The relationship between A and N has been studied extensively at ambient CO2 but much less at elevated CO2. This study was designed to (i) assess whether the A–N relationship was more similar for species within than between community and vegetation types, and (ii) examine how growth at elevated CO2 affects the A–N relationship. Data were obtained for 39 C3 species grown at ambient CO2 and 10 C3 species grown at ambient and elevated CO2. A regression model was applied to each species as well as to species pooled within different community and vegetation types. Cluster analysis of the regression coefficients indicated that species measured at ambient CO2 did not separate into distinct groups matching community or vegetation type. Instead, most community and vegetation types shared the same general parameter space for regression coefficients. Growth at elevated CO2 increased photosynthetic nitrogen use efficiency for pines and deciduous trees. When species were pooled by vegetation type, the A–N relationship for deciduous trees expressed on a leaf-mass basis was not altered by elevated CO2, while the intercept increased for pines. When regression coefficients were averaged to give mean responses for different vegetation types, elevated CO2 increased the intercept and the slope for deciduous trees but increased only the intercept for pines. There were no statistical differences between the pines and deciduous trees for the effect of CO2. Generalizations about the effect of elevated CO2 on the A–N relationship, and differences between pines and deciduous trees will be enhanced as more data become available.Type of Medium: Electronic ResourceURL: -
11Staff View
ISSN: 1752-0606Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: PsychologyNotes: Pre-marital counseling purports to help clients discover and challenge unrealistic expectations they may have for themselves and for one another. Rational-Emotive Therapy (RET) is ideally suited to locating and correcting irrational thoughts that precipitate personal and interpersonal conflict. In order to demonstrate the utility of RET pre-marital counseling, this article presents examples of specific irrational beliefs which clinicians can use to help couples develop and maintain intimacy with minimal conflict. Mental health practitioners are encouraged to apply these principles to other specific irrationalities they may discover in their own work experience.Type of Medium: Electronic ResourceURL: -
12Staff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] There is one possible exception which we feel warrants more publicity than it has received in the past. Urethane (ethyl carbamate) was found to induce tumours of the lung in mice1 and rats2, and since then has been found carcinogenic for other mouse tissues to a lesser extent3. This compound was ...Type of Medium: Electronic ResourceURL: -
13Staff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] Solution in 0-9 per cent sodium chloride occurred rapidly ; but examination of the material just before final solution revealed masses of tapered rod-like structures approximately 2-5 (j. in length, individual rods sometimes showing end-to-end aggregation (Fig. 2). In order to study the process of ...Type of Medium: Electronic ResourceURL: -
14Staff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] SIR,-In a recent BBC "Controversy" programme, Professor John Taylor expressed strongly his opinion that scientists were stifling science. One of his points of contention was that he had been unable to obtain a grant from the Science Research Council to support investigations into the supposed ...Type of Medium: Electronic ResourceURL: -
15RODER, J. C. ; TYLER, L. ; SINGHAL, S. K. ; BALL, J. K.
[s.l.] : Nature Publishing Group
Published 1978Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] We used a leukaemia virus originally isolated from a thymic lymphoma induced by the neonatal injection of 7,12-dimethylbenzanthracene into CFW/D mice4. The virus was then injected into newborn thymus 7 d after grafting under the kidney capsule of adult mice, and the cell line (485-2) was ...Type of Medium: Electronic ResourceURL: -
16ROWSON, K. E. K. ; ROE, F. J. C. ; BALL, J. K. ; SALAMAN, M. H.
[s.l.] : Nature Publishing Group
Published 1961Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] IT has been shown that in certain cases viruses and chemical carcinogens may interact so that tumour production is modified. For example, Rous et al.1*2 found that when Shope papilloma virus was injected intravenously into rabbits the ears of which had been painted with tar for 1-5-3 months, ...Type of Medium: Electronic ResourceURL: -
17BALL, J. G. ; ROBERTSON, J. A. L. ; MARDON, P. ; LEE, J. A. ; ADAMS, E. T.
[s.l.] : Nature Publishing Group
Published 1954Staff ViewISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] CONCURRENTLY with the above work, a more extensive programme of research was carried out at the Atomic Energy Research Establishment, Harwell. The transition temperatures between the five allotropic modifications of plutonium have been determined by several methods, the results being summarized in ...Type of Medium: Electronic ResourceURL: -
18Staff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] A black domesticated variety of M. latipinna ('black mollie') was used, and the fish were kept in stock tanks and individually in two-litre jars under conditions of constant temperature (27 ± 1 C.) and illumination (16 hr. a day). Normal fish were kept in dechlorinated Liverpool tap-water, ...Type of Medium: Electronic ResourceURL: -
19Staff View
ISSN: 0022-1694Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Architecture, Civil Engineering, SurveyingGeographyGeosciencesType of Medium: Electronic ResourceURL: -
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ISSN: 0007-490XTopics: HistoryRomance StudiesNotes: REVIEWS OF BOOKSURL: