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  • 1
    Digitale Medien
    Digitale Medien
    Photodissociation of HNO3 at 193, 222, and 248 nm: Products and quantum yields (1992)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 96 (1992), S. 5887-5895 
    Details
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: The quantum yields for OH, O(3P), O(1D), and H(2S) from the photolysis of HNO3 have been determined at 248, 222, and 193 nm at 298 K. The quantum yield for OH was observed to be near unity at 248 [Φ(OH)=0.95±0.09] and 222 nm [Φ(OH)=0.90±0.11]. However, at 193 nm the quantum yield for OH was found to be 0.33±0.06. The quantum yield for O atoms [O(3P)+O(1D)], Φ(O), was observed to be 0.031±0.010, 0.20±0.03, 0.81±0.13, at 248, 222, and 193 nm, respectively. Both O(3P) and O(1D) were observed at 222 and 193 nm, but only O(3P) was detected at 248 nm. It was observed that 40% of the O atoms formed at both 193 and 222 nm were O(1D) atoms. The upper limits for H(2S) quantum yields: Φ(H)≤0.002 at 248 nm, ≤0.01 at 222 nm, and ≤0.012 at 193 nm were also determined. This present work quantifies the photolysis channel producing HONO+O and show that it accounts for a large fraction at HNO3 photolysis at 193 nm.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.462685
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    The photochemistry of ozone at 193 and 222 nm (1991)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 95 (1991), S. 3244-3251 
    Details
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: The quantum yields for the formation of O(1D) and O(3P) from the photolysis of ozone have been measured at 222 and 193 nm. The quantum yield for O(3P) was observed to be Φ(3P)=0.13±0.02 at 222 nm, and the primary quantum yield for O(1D) was found to be Φ(1D)=0.87±0.04. This measurement is consistent with other studies of O3 photolysis within the Hartley band which indicate that a significant portion (5–15%) of the products are formed in the ground state. At 193 nm the quantum yield for the production of excited state O(1D) atoms is Φ(1D)=0.46±0.29, which is significantly less than what is observed during photolysis within the lower energy Hartley band. The quantum yield for O(3P) atoms at 193 nm was found to be 0.57±0.14. We have also observed that the quantum yield for O atoms [O(1D)+O(3P)] is greater than unity [Φ(O)=1.20±0.15] at 193 nm indicating the presence of a channel which produces three O(3P) atoms. O2(b 1Σ) has also been detected and quantified, Φ(b 1Σ)=0.50±0.38, from O3 photolysis at 193 nm. These measurements suggest that O(1D) and O2(b1Σ) are co-produced.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.460881
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Antisense suppression of deoxyhypusine synthase by vacuum-infiltration of Agrobacterium enhances growth and seed yield of canola (2005)
    Oxford, UK; Malden, USA : Munksgaard International Publishers
    Physiologia plantarum 124 (2005), S. 0 
    Details
    ISSN: 1399-3054
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Deoxyhypusine synthase (DHS; EC 2.5.1.46) mediates the first of two enzymatic reactions that convert inactive eukaryotic translation initiation factor-5A (eIF-5A) to an activated form, thought to facilitate translation. A full-length cDNA clone encoding canola (Brassica napus cv. Westar) DHS was isolated from a cDNA-expression library prepared from senescing leaves. Transgenic canola lines with suppressed DHS expression were obtained by introducing a transgene expressing antisense 3′-UTR canola DHS cDNA under the regulation of the constitutive cauliflower mosaic virus 35S (CaMV-35S) promoter. Transformed seed was obtained by vacuum infiltration of canola inflorescences using the protocol developed for Arabidopsis with modifications. The resultant transgenic plants had reduced levels of leaf DHS protein and exhibited delayed natural leaf senescence. Suppression of DHS also increased leaf size by 1.5- to two-fold and resulted in increases in seed yield of up to 65%. Moreover, the enhanced performance of transgenic plants reflected increased tolerance to chronic sublethal stress. When wild-type and transgenic plants were grown in 6-inch pots, the increase in seed yield accruing from suppression of DHS was approximately 4.5-fold greater than when the plants were grown in 12-inch pots. Thus, suppression of DHS appears to ameliorate the effects of sublethal stress engendered by growth in small containers.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1399-3054.2005.00524.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Ripening-induced acceleration of volatile aldehyde generation following tissue disruption in tomato fruit (1998)
    Copenhagen : Munksgaard International Publishers
    Physiologia plantarum 104 (1998), S. 0 
    Details
    ISSN: 1399-3054
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Hexanal and cis-3-hexenal are principal flavor volatiles in ripe tomato fruit, but whether they accumulate during ripening or are formed upon maceration of the tissue has not been clarified. This has been addressed by measuring levels of these aldehydes in green and ripe fruit with discrimination between intrinsic aldehyde content and aldehyde generation following tissue disruption. Volatile sampling of tomato fruit homogenates was accomplished by purge/trapping, followed by thermal desorption on a gas chromatograph equipped with a mass selective detector. Incubation of some samples with alcohol dehydrogenase to convert the aldehydes to their respective alcohols permitted positive identification of the isomeric form of hexenal as cis-3-hexenal. Red and green tomato fruit homogenized in buffer with saturated CaCl2 contained low (0.1-0.8 µg g−1 fresh weight) levels of hexanal and cis-3-hexenal; thus there is minimal endogenous volatile content in intact fruit. Volatile levels increased rapidly, up to 10-fold, following homogenization of ripe tomato fruit in the absence of CaCl2, and more modestly in corresponding green tomato fruit homogenates. Incubation with the appropriate lipoxygenase/hydroperoxide lyase substrate (linoleic acid for hexanal, linolenic acid for cis-3-hexenal) doubled the amount of volatile compound produced. Hexanal generation was suppressed in the presence of linolenic acid, suggesting that the enzyme complex has greater affinity for this substrate. As well, levels of cis-3-hexenal, but not hexanal, tended to decline within 30 min of homogenization, possibly reflecting a specific degradative process. The results collectively indicate that the contribution of six-carbon aldehydes to tomato fruit flavor is attributable to metabolism invoked following tissue disruption rather than within the intact fruit.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1034/j.1399-3054.1998.1040408.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    The competence of top team members: A framework for successful performance (1996)
    Bradford : Emerald
    Journal of managerial psychology 11 (1996), S. 48-66 
    Details
    ISSN: 0268-3946
    Quelle: Emerald Fulltext Archive Database 1994-2005
    Thema: Psychologie , Wirtschaftswissenschaften
    Notizen: Presents the research frame, methods and results of a study of top team competences in small- to medium-sized enterprises sponsored by the Training and Employment Agency in Northern Ireland. Explores a "postulated" framework of competence using a modified version of repertory grid with 31 successful companies who have a working top team. The results confirmed the framework and give core competences at two linked levels: competence domains, areas of activity regarded as an important focus for performance excellence and competences, integrated sets of behaviour which can be directed towards successful goals achievement within competence domains. Validation of the results is given by the outcomes of follow-up interviews and the comparison with other work. Holds that the results emphasize a radical insight into the notion of managerial competence in the smaller company.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1108/02683949610113593
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    The competence of top team members: A framework for successful performance (1997)
    Bingley : Emerald
    Team performance management 3 (1997), S. 57-75 
    Details
    ISSN: 1352-7592
    Quelle: Emerald Fulltext Archive Database 1994-2005
    Thema: Wirtschaftswissenschaften
    Notizen: Presents the research frame, methods and results of a study of top team competences in small- to medium-sized enterprises sponsored by the Training and Employment Agency in Northern Ireland. Explores a "postulated" framework of competence using a modified version of repertory grid with 31 successful companies who have a working top team. The results confirmed the framework and give core competences at two linked levels: competence domains, areas of activity regarded as an important focus for performance excellence and competences, integrated sets of behaviour which can be directed towards successful goals achievement within competence domains. Validation of the results is given by the outcomes of follow-up interviews and the comparison with other work. Holds that the results emphasize a radical insight into the notion of managerial competence in the smaller company.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1108/13527599710190957
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Translation. From generalizable to organization-specific competence frameworks (1995)
    Bradford : Emerald
    The @journal of management development 14 (1995), S. 67-80 
    Details
    ISSN: 0262-1711
    Quelle: Emerald Fulltext Archive Database 1994-2005
    Thema: Wirtschaftswissenschaften
    Notizen: Forms a part of a larger project aimed at developing a framework ofmanagerial competence applicable to top teams in small - tomedium-sized enterprises in Northern Ireland. Reports on aninvestigation into the development of a process of"translation", whereby cross-company competence frameworkscould be transformed into company-specific frame-works. A systematic,ten-step translation process emerged, involving drawing out reactionsto, and checking understanding of the generalizable frameworks,modifying framework items through additions, deletions, aggregation,disaggregation, and changes to the small print; identifying priorities;drawing out examples from practice; distinguishing actual from ideal;introducing a time dimension; challenging underlying reasoning andimplications; and finally, checking the fit of the adapted frameworks.The developed translation process maintained the integrity of thegeneralizable frameworks while enabling full account to be taken ofspecific company differences. The process also served as a means ofidentifying individual team, and organization development issues, andlaid the ground for the introduction of competence-based managementdevelopment initiatives.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1108/02621719510075914
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Competent managers? - The development and validation of a normative model using the MCI standards (2000)
    Bradford : Emerald
    The @journal of management development 19 (2000), S. 836-852 
    Details
    ISSN: 0262-1711
    Quelle: Emerald Fulltext Archive Database 1994-2005
    Thema: Wirtschaftswissenschaften
    Notizen: Increasing demands in university management in the 1990s in the UK requires a re-examination of the head of school's role. The Standards are part of a radical change in the system of vocational education and training in the UK which began in 1982. A questionnaire was distributed to deans and senior officers, heads and staff. Respondents gave their ratings of importance of 62 activities in the effective leading and managing of a school derived from the Standards. In feedback workshops heads and deans commented on changes to the proposed model. The validity of the standards and their future usefulness is evidenced by few changes to the proposed model and willingness by heads and deans to use the model as the platform for future development.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1108/02621710010357951
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Quantitative and qualitative differences in C6-volatile production from the lipoxygenase pathway in an alcohol dehydrogenase mutant of Arabidopsis thaliana (1998)
    Copenhagen : Munksgaard International Publishers
    Physiologia plantarum 104 (1998), S. 0 
    Details
    ISSN: 1399-3054
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: Six-carbon (C6) volatile products are released from the enzymatic action of hydroperoxide lyase (HPL), a component of the lipoxygenase (LOX) pathway and form the basis of the “green-note” flavour characteristic of many consumed plant products. Arabidopsis leaf tissue contains the C6-aldehydes hexanal, and trans-2-hexenal as well as the C6-alcohols: hexanol, and 3-hexenol. Interconversion between C6-aldehydes and alcohols is thought to proceed through the action of alcohol dehydrogenase (ADH). Using an ADH mutant of Arabidopsis, we have shown that there are large quantitative and qualitative differences in the accumulation of C6-volatiles in the absence of ADH activity. The total quantity of LOX-derived volatiles is greater on a fresh weight basis in the ADH mutant. Qualitatively, hexanol and 3-hexenol levels are approximately 62% and 51% lower in the mutant, respectively, whereas levels of hexenal are approximately 10-fold higher. Hexanal accumulation, however, is unaffected in the mutant. The altered profile of LOX-derived volatiles does not have an effect on the steady-state levels of mRNA for allene oxide synthase (AOS) or LOX. HPL activity and mRNA quantity, however, are higher in the mutant relative to wild type, suggesting that altered product levels in the mutant affect HPL regulation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1034/j.1399-3054.1998.1040113.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    The effect of neurolinguistic programming on organisational and individual performance: a case study (2002)
    Bingley : Emerald
    Journal of European industrial training 26 (2002), S. 292-298 
    Details
    ISSN: 0309-0590
    Quelle: Emerald Fulltext Archive Database 1994-2005
    Thema: Wirtschaftswissenschaften
    Notizen: Neurolinguistic programming (NLP) is a set of techniques designed to make you better at what you do. NLP helps you to understand yourself and others and teaches you how to communicate effectively with others in order to build better relationships with them. Reports on a longitudinal study of the effect of a two to three day NLP course on managers and staff in the hospitality industry. The evaluation is unique as it is the only known longitudinal research into the effects of NLP. Measurements were taken on four psychometric measures at four time periods. The four constructs measured are all positively linked to performance. Three show increases over the start of course measure. Self-efficacy does not. The verdict on the efficacy of NLP is unclear. Draws some conclusions on the extension of the research.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1108/03090590210431265
    Standort Signatur Erwartet Verfügbarkeit
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