bluuebunny/crossref_metadata_2025 huggingface dataset:
Three Nicotianamine Synthase Genes Isolated from Maize Are Differentially Regulated by Iron Nutritional Status
Authors: Mizuno Daichi , Higuchi Kyoko , Sakamoto Tatsuya , Nakanishi Hiromi , Mori Satoshi , Nishizawa Naoko K.
Published: August 2003

Nicotianamine synthase (NAS) is an enzyme that is critical for the biosynthesis of the mugineic acid family of phytosiderophores in graminaceous plants, and for the homeostasis of metal ions in nongraminaceous plants. We isolated one genomic NAS clone, ZmNAS3, and two cDNA NAS clones, ZmNAS1 and ZmNAS2, from maize (Zea mays cv Alice). In agreement with the increased secretion of phytosiderophores with Fe deficiency, ZmNAS1 and ZmNAS2 were positively expressed only in Fe-deficient roots. In contrast, ZmNAS3 was expressed under Fe-sufficient conditions, and was negatively regulated by Fe deficiency. This is the first report describing down-regulation of NAS gene expression in response to Fe deficiency in plants, shedding light on the role of nicotianamine in graminaceous plants, other than as a precursor in phytosiderophore production. ZmNAS1-green fluorescent protein (sGFP) and ZmNAS2-sGFP were localized at spots in the cytoplasm of onion (Allium cepa) epidermal cells, whereas ZmNAS3-sGFP was distributed throughout the cytoplasm of these cells. ZmNAS1 and ZmNAS3 showed NAS activity in vitro, whereas ZmNAS2 showed none. Due to its duplicated structure, ZmNAS2 was much larger (65.8 kD) than ZmNAS1, ZmNAS3, and previously characterized NAS proteins (30–38 kD) from other plant species. We reveal that maize has two types of NAS proteins based on their expression pattern and subcellular localization.
Purification and Characterization of Four β-Expansins (Zea m 1 Isoforms) from Maize Pollen
Authors: Li Lian-Chao , Bedinger Patricia A. , Volk Carol , Jones A. Daniel , Cosgrove Daniel J.
Published: August 2003

Four proteins with wall extension activity on grass cell walls were purified from maize (Zea mays) pollen by conventional column chromatography and high-performance liquid chromatography. Each is a basic glycoprotein (isoelectric point = 9.1–9.5) of approximately 28 kD and was identified by immunoblot analysis as an isoform of Zea m 1, the major group 1 allergen of maize pollen and member of the β-expansin family. Four distinctive cDNAs for Zea m 1 were identified by cDNA library screening and by GenBank analysis. One pair (GenBank accession nos. AY104999 and AY104125) was much closer in sequence to well-characterized allergens such as Lol p 1 and Phl p 1 from ryegrass (Lolium perenne) and Phleum pretense, whereas a second pair was much more divergent. The N-terminal sequence and mass spectrometry fingerprint of the most abundant isoform (Zea m 1d) matched that predicted for AY197353, whereas N-terminal sequences of the other isoforms matched or nearly matched AY104999 and AY104125. Highly purified Zea m 1d induced extension of a variety of grass walls but not dicot walls. Wall extension activity of Zea m 1d was biphasic with respect to protein concentration, had a broad pH optimum between 5 and 6, required more than 50 μg mL-1 for high activity, and led to cell wall breakage after only approximately 10% extension. These characteristics differ from those of α-expansins. Some of the distinctive properties of Zea m 1 may not be typical of β-expansins as a class but may relate to the specialized function of this β-expansin in pollen function.
Thylakoid-Bound Ascorbate Peroxidase Mutant Exhibits Impaired Electron Transport and Photosynthetic Activity
Authors: Danna Cristian H. , Bartoli Carlos G. , Sacco Francisco , Ingala Lorena R. , Santa-María Guillermo E. , Guiamet Juan J. , Ugalde Rodolfo A.
Published: August 2003

In chloroplasts, stromal and thylakoid-bound ascorbate peroxidases (tAPX) play a major role in the removal of H2O2 produced during photosynthesis. Here, we report that hexaploid wheat (Triticum aestivum) expresses three homeologous tAPX genes (TaAPX-6A, TaAPX-6B, and TaAPX-6D) mapping on group-6 chromosomes. The tAPX activity of a mutant line lacking TaAPX-6B was 40% lower than that of the wild type. When grown at high-light intensity photosystem II electron transfer, photosynthetic activity and biomass accumulation were significantly reduced in this mutant, suggesting that tAPX activity is essential for photosynthesis. Despite the reduced tAPX activity, mutant plants did not exhibit oxidative damage probably due to the reduced photochemical activity. This might be the result of a compensating mechanism to prevent oxidative damage having as a consequence a decrease in growth of the tAPX mutant plants.
Resemblance and Dissemblance of Arabidopsis Type II Peroxiredoxins: Similar Sequences for Divergent Gene Expression, Protein Localization, and Activity
Authors: Bréhélin Claire , Meyer Etienne H. , de Souris Jean-Paul , Bonnard Géraldine , Meyer Yves
Published: August 2003

The Arabidopsis type II peroxiredoxin (PRXII) family is composed of six different genes, five of which are expressed. On the basis of the nucleotide and protein sequences, we were able to define three subgroups among the PRXII family. The first subgroup is composed of AtPRXII-B, -C, and -D, which are highly similar and localized in the cytosol. AtPRXII-B is ubiquitously expressed. More striking is the specific expression of AtPRXII-C and AtPRXII-D localized in pollen. The second subgroup comprises the mitochondrial AtPRXII-F, the corresponding gene of which is expressed constitutively. We show that AtPRXII-E, belonging to the last subgroup, is expressed mostly in reproductive tissues and that its product is addressed to the plastid. By in vitro enzymatic experiments, we demonstrate that glutaredoxin is the electron donor of recombinant AtPRXII-B for peroxidase reaction, but the donors of AtPRXII-E and AtPRXII-F have still to be identified.
Overexpression of the Disease Resistance Gene Pto in Tomato Induces Gene Expression Changes Similar to Immune Responses in Human and Fruitfly
Authors: Mysore Kirankumar S. , D'Ascenzo Mark D. , He Xiaohua , Martin Gregory B.
Published: August 2003

The Pto gene encodes a serine/threonine protein kinase that confers resistance in tomato (Lycopersicon esculentum) to Pseudomonas syringae pv tomato strains that express the type III effector protein AvrPto. Constitutive overexpression of Pto in tomato, in the absence of AvrPto, activates defense responses and confers resistance to several diverse bacterial and fungal plant pathogens. We have used a series of gene discovery and expression profiling methods to examine the effect of Pto overexpression in tomato leaves. Analysis of the tomato expressed sequence tag database and suppression subtractive hybridization identified 600 genes that were potentially differentially expressed in Pto-overexpressing tomato plants compared with a sibling line lacking Pto. By using cDNA microarrays, we verified changes in expression of many of these genes at various time points after inoculation with P. syringae pv tomato (avrPto) of the resistant Pto-overexpressing line and the susceptible sibling line. The combination of these three approaches led to the identification of 223 POR (Pto overexpression responsive) genes. Strikingly, 40% of the genes induced in the Pto-overexpressing plants previously have been shown to be differentially expressed during the human (Homo sapiens) and/or fruitfly (Drosophila melanogaster) immune responses.
BWMK1, a Rice Mitogen-Activated Protein Kinase, Locates in the Nucleus and Mediates Pathogenesis-Related Gene Expression by Activation of a Transcription Factor
Authors: Cheong Yong Hwa , Moon Byeong Cheol , Kim Jong Kyong , Kim Cha Young , Kim Min Chul , Kim Ihn Hyoung , Park Chan Young , Kim Jong Cheol , Park Byung Ouk , Koo Seong Cheol , Yoon Hae Won , Chung Woo Sik , Lim Chae Oh , Lee Sang Yeol , Cho Moo Je
Published: August 2003

Mitogen-activated protein kinase (MAPK) cascades are known to transduce plant defense signals, but the downstream components of the MAPK have as yet not been elucidated. Here, we report an MAPK from rice (Oryza sativa), BWMK1, and a transcription factor, OsEREBP1, phosphorylated by the kinase. The MAPK carries a TDY phosphorylation motif instead of the more common TEY motif in its kinase domain and has an unusually extended C-terminal domain that is essential to its kinase activity and translocation to the nucleus. The MAPK phosphorylates OsEREBP1 that binds to the GCC box element (AGCCGCC) of the several basic pathogenesis-related gene promoters, which in turn enhances DNA-binding activity of the factor to the cis element in vitro. Transient co-expression of the BWMK1 and OsEREBP1 in Arabidopsis protoplasts elevates the expression of the β-glucuronidase reporter gene driven by the GCC box element. Furthermore, transgenic tobacco (Nicotiana tabacum) plants overexpressing BWMK1 expressed many pathogenesis-related genes at higher levels than wild-type plants with an enhanced resistance to pathogens. These findings suggest that MAPKs contribute to plant defense signal transduction by phosphorylating one or more transcription factors.
Expression of U1 Small Nuclear Ribonucleoprotein 70K Antisense Transcript Using APETALA3 Promoter Suppresses the Development of Sepals and Petals
Authors: Golovkin Maxim , Reddy Anireddy S.N.
Published: August 2003

U1 small nuclear ribonucleoprotein (snRNP)-70K (U1-70K), a U1 snRNP-specific protein, is involved in the early stages of spliceosome formation. In non-plant systems, it is involved in constitutive and alternative splicing. It has been shown that U1snRNP is dispensable for in vitro splicing of some animal pre-mRNAs, and inactivation of U1-70K in yeast (Saccharomyces cerevisiae) is not lethal. As in yeast and humans (Homo sapiens), plant U1-70K is coded by a single gene. In this study, we blocked the expression of Arabidopsis U1-70K in petals and stamens by expressing U1-70K antisense transcript using the AP3 (APETALA3) promoter specific to these floral organs. Flowers of transgenic Arabidopsis plants expressing U1-70K antisense transcript showed partially developed stamens and petals that are arrested at different stages of development. In some transgenic lines, flowers have rudimentary petals and stamens and are male sterile. The severity of the phenotype is correlated with the level of the antisense transcript. Molecular analysis of transgenic plants has confirmed that the observed phenotype is not due to disruption of whorl-specific homeotic genes, AP3 or PISTILLATA, responsible for petal and stamen development. The AP3 transcript was not detected in transgenic flowers with severe phenotype. Flowers of Arabidopsis plants transformed with a reporter gene driven by the same promoter showed no abnormalities. These results show that U1-70K is necessary for the development of sepals and petals and is an essential gene in plants.
Characterization of Tocopherol Cyclases from Higher Plants and Cyanobacteria. Evolutionary Implications for Tocopherol Synthesis and Function
Authors: Sattler Scott E. , Cahoon Edgar B. , Coughlan Sean J. , DellaPenna Dean
Published: August 2003

Tocopherols are lipophilic antioxidants synthesized exclusively by photosynthetic organisms and collectively constitute vitamin E, an essential nutrient for both humans and animals. Tocopherol cyclase (TC) catalyzes the conversion of various phytyl quinol pathway intermediates to their corresponding tocopherols through the formation of the chromanol ring. Herein, the molecular and biochemical characterization of TCs from Arabidopsis (VTE1 [VITAMIN E 1]), Zea mays (SXD1 [Sucrose Export Deficient 1]) and Synechocystis sp. PCC6803 (slr1737) are described. Mutations in the VTE1, SXD1, or slr1737 genes resulted in both tocopherol deficiency and the accumulation of 2,3-dimethyl-6-phytyl-1,4-benzoquinone (DMPBQ), a TC substrate. Recombinant SXD1 and VTE1 proteins are able to convert DMPBQ to γ-tocopherol in vitro. In addition, expression of maize SXD1 in a Synechocystis sp. PCC6803 slr1737 knockout mutant restored tocopherol synthesis, indicating that TC activity is evolutionarily conserved between plants and cyanobacteria. Sequence analysis identified a highly conserved 30-amino acid C-terminal domain in plant TCs that is absent from cyanobacterial orthologs. vte1-2 causes a truncation within this C-terminal domain, and the resulting mutant phenotype suggests that this domain is necessary for TC activity in plants. The defective export of Suc in sxd1 suggests that in addition to presumed antioxidant activities, tocopherols or tocopherol breakdown products also function as signal transduction molecules, or, alternatively, the DMPBQ that accumulates in sxd1 disrupts signaling required for efficient Suc export in maize.
Pea DNA Topoisomerase I Is Phosphorylated and Stimulated by Casein Kinase 2 and Protein Kinase C
Authors: Tuteja Narendra , Reddy Malireddy Kodandarami , Mudgil Yashwanti , Yadav Badam Singh , Chandok Meena Rani , Sopory Sudhir Kumar
Published: August 2003

DNA topoisomerase I catalyzes the relaxation of superhelical DNA tension and is vital for DNA metabolism; therefore, it is essential for growth and development of plants. Here, we have studied the phosphorylation-dependent regulation of topoisomerase I from pea (Pisum sativum). The purified enzyme did not show autophosphorylation but was phosphorylated in an Mg2+-dependent manner by endogenous protein kinases present in pea nuclear extracts. This phosphorylation was abolished with calf intestinal alkaline phosphatase and lambda phosphatase. It was also phosphorylated by exogenous casein kinase 2 (CK2), protein kinase C (PKC; from animal sources), and an endogenous pea protein, which was purified using a novel phorbol myristate acetate affinity chromatography method. All of these phosphorylations were inhibited by heparin (inhibitor of CK2) and calphostin (inhibitor of PKC), suggesting that pea topoisomerase I is a bona fide substrate for these kinases. Spermine and spermidine had no effect on the CK2-mediated phosphorylation, suggesting that it is polyamine independent. Phospho-amino acid analysis showed that only serine residues were phosphorylated, which was further confirmed using antiphosphoserine antibody. The topoisomerase I activity increased after phosphorylation with exogenous CK2 and PKC. This study shows that these kinases may contribute to the physiological regulation of DNA topoisomerase I activity and overall DNA metabolism in plants.
Peptide and Amino Acid Transporters Are Differentially Regulated during Seed Development and Germination in Faba Bean
Authors: Miranda Manoela , Borisjuk Ljudmilla , Tewes Annegret , Dietrich Daniela , Rentsch Doris , Weber Hans , Wobus Ulrich
Published: August 2003

Two peptide transporter (PTR) homologs have been isolated from developing seeds of faba bean (Vicia faba). VfPTR1 was shown to be a functional peptide transporter through complementation of a yeast mutant. Expression patterns of VfPTR1 and VfPTR2 as well as of the amino acid permease VfAAP1 (Miranda et al., 2001) were compared throughout seed development and germination. In developing seeds, the highest levels of VfPTR1 transcripts were reached during midcotyledon development, whereas VfAAP1 transcripts were most abundant during early cotyledon development, before the appearance of storage protein gene transcripts, and were detectable until late cotyledon development. During early germination, VfPTR1 mRNA appeared first in cotyledons and later, during seedling growth, also in axes and roots. Expression of VfPTR2 and VfAAP1 was delayed compared with VfPTR1, and was restricted to the nascent organs of the seedlings. Localization of VfPTR1 transcripts showed that this PTR is temporally and spatially regulated during cotyledon development. In germinating seeds, VfPTR1 mRNA was localized in root hairs and root epidermal cells, suggesting a role in nutrient uptake from the soil. In seedling roots, VfPTR1 was repressed by a dipeptide and by an amino acid, whereas nitrate was without influence.
Molecular Characterization of a Novel Lipase-Like Pathogen-Inducible Gene Family of Arabidopsis
Authors: Jakab Gabor , Manrique Amapola , Zimmerli Laurent , Métraux Jean-Pierre , Mauch-Mani Brigitte
Published: August 2003

In a differential screening between Arabidopsis plants pretreated with the resistance-inducer β-aminobutyric acid and untreated control plants, we have identified a gene encoding a novel lipase-like protein, PRLIP1. The abundance of PRLIP1 mRNAs in Arabidopsis leaves was up-regulated by application of β-aminobutyric acid, salicylic acid (SA), and ethylene as well as by various pathogens. Induction of PRLIP1 depended on a functioning SA and ethylene signal transduction pathway but was independent of jasmonate signaling. This novel pathogenesis-related (PR) gene of Arabidopsis belongs to a gene family consisting of six (PRLIP1, PRLIP2, PRLIP4, PRLIP5, PRLIP6, and PRLIP7) closely related members in tandem position on chromosome 5. Among these genes, PRLIP2 also was induced in leaves by SA and infections by pathogens but on a much lower level than PRLIP1. The PRLIP1 family showed a tissue-specific expression pattern. Both PRLIP1 and PRLIP2 were specifically expressed in leaves and siliques, PRLIP1 additionally in stems and flowers. The expression of PRLIP6 and PRLIP4 was root specific, whereas mRNA of PRLIP5 and PRLIP7 were not detected in any of these tissues. The more distantly related genes PRLIP3, PRLIP9, and PRLIP8 were found on chromosomes 2, 4, and 5, respectively. The expression level of PRLIP3 was checked and found constitutive during the different stress conditions tested. The PRLIP1 gene was overexpressed in Escherichia coli, and the resulting PRLIP1 protein showed esterase activity on p-nitrophenyl-butyrate and allowed the growth of the bacteria on lipidic substrates such as Tween20 or Tween80.
Psychoanalytic theory in times of terror
Authors: Connolly Angela
Published: August 2003

Recent events have underlined in the most tragic and dramatic way the need for depth psychology to turn its attention to the psychology of terror. The present paper attempts to distinguish between the psychological modes of horror and terror and explores the different theoretical approaches of Burke, Freud, Kristeva and Jung to this problem in order to cast light on the individual and collective functions that horror and terror play. While all these authors stress that terror and horror play a role in structuring the sense of identity and in strengthening community bonds, Freud and Kristeva believe that the experience of horror works to increase the exclusion of otherness through mechanisms of repression or foreclosure while Burke and Jung see in the encounter with the Negative Sublime or with the Shadow the possibility of widening the boundaries of ego consciousness and of integration of ‘otherness’. The paper then uses the analysis of two horror movies and of a particular socio‐cultural context to illustrate these different functions of horror and terror and to delineate possible solutions to the problems facing society.
Automobile Reliance Among the Elderly: Race and Spatial Context Effects
Authors: Waldorf Brigitte
Published: August 2003

Abstract Mobility is a necessary condition for the social and emotional well‐being of older people. To meet their mobility needs, the elderly assign pivotal importance to the automobile despite the potential challenge of driving cessation and searching for alternatives to automobile transportation. Older persons’ generally strong reliance on the automobile varies, however, by land use patterns (density) as well as by demographic and socioeconomic characteristics. This paper analyzes the effects of spatial context and personal attributes on automobile reliance among the elderly. Using the 1995 Nationwide Personal Transportation Survey (NPTS) trip data, two models of automobile reliance among elderly (65+) trip makers are estimated. The results show that spatial context effects of automobile reliance vary by demographic characteristics; in particular, they are more pronounced for black than for white elderly. Moreover, race variation in automobile reliance is strongest in urban locations rather than less dense spatial contexts. Finally, the differentiation between being a passenger rather than a driver is salient in order to understand locational and racial variations in automobile reliance among the elderly.
Offshore Financial Services and the Internet: Creating Confidence in the Use of Cyberspace?
Authors: Cobb Sharon
Published: August 2003

Abstract The use of the Internet and World Wide Web (WWW) as a distributive medium is seen by many businesses as a legitimate way to cut costs of operation. Confidence is growing in the use of this medium to transact business because of the increasing sophistication of firewalls, encryption software, and digital key technology. This paper presents empirical evidence from one offshore financial center where the process of legislative and regulatory reform put in place to establish confidence in the traditional provision of offshore financial services is now being used to regulate and legitimize the online distribution of such services. The results show that all firms surveyed for this study use the Internet for routine brochure‐ware purposes and the larger firms (particularly in the offshore life insurance sector) are developing more sophisticated customized transactional functions via extranet platforms. Tensions exist though with respect to “regulatory grasp” via the Internet, as offshore places are being put under increased pressure by supranational organizations such as the Organization for Economic Cooperation and Development (OECD) and Financial Action Task Force (FATF) to require greater transparency in offshore financial transactions.
Empowerment Through Participation? Conceptual Explorations and A Case Study
Authors: Perrons Diane , Skyers Sophia
Published: August 2003

Economic inequalities have been increasing between and within nations, regions and cities, but questions of redistribution have to some extent been displaced by those of recognition, empowerment and diversity in urban and regional inquiry and policy. A conceptual framework drawing upon Nancy Fraser's and Iris Marion Young's ideas about economic and cultural injustice is proposed for evaluating local empowerment initiatives, which is then drawn upon to explore the nature and effectiveness of participation with reference to one specific New Deal For Communities partnership scheme in the London Borough of Hackney, Shoreditch – Our Way, concerned with regeneration. Our findings suggest that while participation is certainly a necessary condition for moving towards a more egalitarian society, current policies are valuable but limited in terms of the degree of representation and the extent of control. They are part of an affirmative agenda – that is, they tackle symptoms but not causes of deprivation. We conclude that if long‐term remedies are desired, then transformative solutions which address both economic and political injustice are necessary.

Les inégalités économiques se sont creusées entre et au sein des nations, régions et villes mais, dans les études et dans les politiques urbaines et régionales, les questions de redistribution ont, dans une certaine mesure, été supplantées par celles de reconnaissance, empowerment et diversité. L'article propose un cadre conceptuel inspiré des idées de Nancy Fraser et Iris Marion Young sur l'injustice économique et culturelle afin d'évaluer les initiatives locales d'empowerment. Cette évaluation permet ensuite d'explorer la nature et l'efficacité de la participation en évoquant un programme de régénération en partenariat de type New Deal for Communities, à Shoreditch, dans la banlieue londonienne de Hackney (Our Way). Les résultats suggèrent que, si la participation est bien sûr une condition nécessaire pour aller vers une société plus égalitaire, les politiques actuelles, quoique précieuses, sont limitées en termes de degré de représentation et niveau de maîtrise. Elles s'inscrivent dans une démarche antidiscriminatoire en traitant les symptômes, mais pas les causes de l'appauvrissement. En conclusion, si l'on souhaite des solutions à long terme, il faut des transformations remédiant aux injustices tant économiques que politiques.
The marketing of diversity in the inner city: tourism and regulation in Harlem
Authors: Hoffman Lily M.
Published: August 2003

This article brings regulation theory and the broader post‐Fordist debate together with an empirical study of the emergence and consequences of tourism in Harlem. It shows that the valorization of cultural diversity, as well as under‐served markets, has helped reposition this formerly unmarketable area in relation to city, state and capital markets. Moreover, as development occurs, the nature of regulation pertaining to Harlem begins to change. The author argues that the failure to disaggregate – to link the elements of the restructuring economy to outcomes for specific areas and residents, leads to an overly pessimistic view. Tourism‐based development may act as an equalizing force, helping to rebalance the uneven urban spatial development characteristic of Fordism and symbolized by the social isolation and concentrated poverty of the racial ghetto in the US. The role of cultural capital as the engine of growth in Harlem, has meant that revitalization promotes cultural differentiation along with standardization. Overall, cultural tourism requires substantial civic engagement. This gives the community control, but at the same time disciplines and stabilizes. Urban tourism thus incorporates a new mode of regulation, making for greater social/political and economic inclusion, but with the associated costs as well as benefits.

Cet article allie la théorie de la régulation et le débat plus large du post‐Fordisme, à une étude empirique sur l'apparition et les conséquences du tourisme à Harlem. Il montre que la valorisation de la diversité culturelle, de mäme que les marchés sous‐approvisionnés, ont aidéà repositionner cette zone auparavant sans attrait commercial dans une relation avec les marchés de la ville, de l'État et des capitaux. En outre, avec l'expansion, la nature de la régulation propre à Harlem a commencéà changer. L'absence de désagrégation – qui associe les éléments de l'économie en restructuration aux résultats en faveur de zones et résidents particuliers – conduit à une vision des plus pessimiste. Toutefois, un essor basé sur le tourisme peut avoir une force compensatrice, aidant à rééquilibrer l'aménagement spatial urbain inégal, caractéristique fordienne symbolisée par l'isolement culturel et la pauvreté concentrée dans les ghettos raciaux aux Etats‐Unis. Le rôle du capital social en tant que moteur de croissance d'Harlem s'est traduit par une revitalisation favorisant à la fois différenciation culturelle et normalisation. Le tourisme culturel implique surtout un engagement civique réel, celui‐ci donnant la maä'trise à la communauté, tout en apportant discipline et stabilité. Le tourisme urbain amène donc un nouveau mode de régulation, créant une meilleure inclusion socio‐politique et économique, mais avec les coûts (et avantages) associés.
Restructuring Citizenship in Bolivia: El Plan de Todos
Authors: Kohl Benjamin
Published: August 2003

Current international development policies promote both free markets and democratic states through privatization and decentralization programs. Building on T.H. Marshall's concept of citizenship, this article examines how these programs have affected the rights associated with citizenship in Bolivia since 1993 when the administration of President Gonzalo Sänchez de Lozada introduced a broad set of economic and political reforms. His administration sold state firms that had accounted for 50% of government revenues at the same time as it adopted a new constitution that recognized the multicultural and pluri‐ethnic nature of Bolivian society. His administration also began decentralization programs in government, health and education that transferred 20% of national revenues, as well as the responsibility for providing services, to municipal governments. I show how current development practice has strengthened a neoliberal citizenship regime in which civil rights associated with ownership of private property, and political rights associated with formal democracy and representation, have been promoted at the expense of social rights associated with access to health, education and welfare.

Actuellement, les politiques de développement internationales favorisent à la fois les marchés libres et les états démocratiques par des programmes de privatisation et décentralisation. A partir du concept de citoyenneté de T.H. Marshall, l'article examine comment ces programmes ont affecté les droits liés à la citoyenneté en Bolivie depuis 1993, date à laquelle le gouvernement du Président Gonzalo Sánchez de Lozada a lancé un vaste train de réformes économiques et politiques. Il a vendu des entreprises publiques qui avaient représenté 50% des recettes de l'Etat, tout en adoptant une nouvelle constitution reconnaissant la nature multiculturelle et pluri‐ethnique de la société bolivienne. De plus, il a entamé des programmes de décentralisation au niveau du gouvernement, de la santé et de l'éducation, cédant aux autorités municipales 20% des revenus nationaux et la responsabilité de la fourniture de services. Ainsi, le développement actuel a renforcé un régime de citoyenneté néo‐libéral où les droits civils relatifs à la propriété privée, et les droits politiques relatifs à la représentation et la démocratie officielles, ont été avantagés au détriment des droits sociaux liés à l'accä%s à la santé l'éducation et l'aide sociale.
Producing nightlife in the new urban entertainment economy: corporatization, branding and market segmentation
Authors: Hollands Robert , Chatterton Paul
Published: August 2003

This article explores the production of the nightlife industry within a new urban entertainment economy. We do this by drawing upon debates about the transition from Fordism to post‐Fordism, and the assumed shift away from standardized and mass towards more segmented and niche consumer markets. In contrast to some of the more self‐congratulatory accounts of varied, flexible niche urban consumption, our starting point is to pursue more neo‐Fordist interpretations which explore continuity as well as change and in particular stress growing corporate control in entertainment and night‐life economies, the increased use of branding and theming, and the emergence of segmented, sanitized and gentrified consumer markets. These processes are illustrated and empirically examined in relation to changes within the UK nightlife sector which has undergone rapid restructuring, re‐concentration and segmentation over the last 10 years. We discuss a number of implications which emerge from these developments, such as the erosion of diversity and choice, and the possibilities for alternative/independent and historic/community forms of nightlife production and spaces to coexist in such a context.

L'article examine la production du secteur de la vie nocturne dans le cadre d'une nouvelle économie urbaine des loisirs. Pour cela, il s'inspire des débats sur la transition du Fordisme au post‐Fordisme, et sur le soi‐disant décalage des marchés de consommation de masse standardisés vers des niches et des marchés plus segmentés. Contrairement à certaines des justifications auto‐suffisantes d'une consommation urbaine de niches variée et flexible, son point de départ consiste à suivre des interprétations plus néo‐Fordiennes qui explorent continuité et changement, en soulignant notamment la main‐mise croissante d'entreprises dans les économies du loisir et de la vie nocturne, le recours accru à une stratégie de marque ou de thème, et l'émergence de marchés de consommation segmentés, aseptisés et embourgeoisés. Ces processus sont illustrés et étudiés empiriquement d'après les transformations du secteur de la vie nocturne au Royaume‐Uni, lequel a connu un enchaînement de restructuration‐reconcentration‐segmentation au cours des dix dernières années. Hormis plusieurs implications de ces évolutions (comme l'érosion de la diversité et du choix), l'article aborde les possibilités de coexistence, dans un tel contexte, de formes alternatives ou indépendantes et historiques ou collectives de production et d'espaces de vie nocturne.
Local dimensions of global investment: Israeli property firms in Central Europe
Authors: Charney Igal
Published: August 2003

Transnational property investment has increased dramatically during the last few decades. This process has been traced by literature focusing on capital‐rich countries (e.g. the United States, Canada, Japan) and on major world cities. More recently, in tandem with the collapse of the Berlin Wall, the geographical horizons of foreign investors have broadened to include former socialist countries. This article examines the recent surge in Israeli property investment in Central Europe and argues that global flows depend on relationships between place of origin and destination. Mobility of property capital creates networks that connect cities on a transnational basis.

Les investissements immobiliers transnationaux ont énormément augmenté au cours des dernières décennies. Cet aspect a été suivi et documenté surtout pour les pays riches en capitaux (Etats‐Unis, Canada, Japon, par exemple) et les grandes villes mondiales. Plus récemment, parallèlement à la chute du Mur de Berlin, les horizons géographiques des investisseurs étrangers se sont élargis aux anciens pays socialistes. L'article examine l'afflux récent d'investissements immobiliers israéliens en Europe centrale, affirmant que les flux planétaires dépendent des relations entre les lieux d'origine et de destination. La mobilité des capitaux immobiliers crée des réseaux qui relient des villes au plan transnational.
Counting the costs: Denmark's changing migration policies
Authors: Østergaard‐Nielsen Eva
Published: August 2003

During the Danish local and national elections in November 2001, the scale, intensity and tone of the debates on migration took both national and international commentators by surprise. Within the first year of the new right‐wing government, supported by the influential Danish People's Party, Denmark has become one of the most exclusive and restrictive immigration regimes in Europe. This article takes a closer look at the recent politicization of migration issues in Denmark. While there is certainly concern with the compatibility of migrant ‘otherness’, in particular Islam, with Danish society and norms, then an equally, or even more central issue regards the ‘cost of migration’ for Danish social policy standards. Because of high unemployment rates, migrants and their descendants receive a relatively large part of Danish social contributions. This has raised the more general question of how to combine immigration with a tax‐financed universal welfare system where all have rights to full social benefits immediately upon arrival. The answer of the government has been to cut both sides of the equation by implementing stricter entry rules for family reunification and asylum‐seekers, as well as making a historical break with the principle of equal social welfare benefits for all legal residents.

Lors des élections danoises locales et nationales de novembre 2001, l'ampleur, l'intensité et le ton des débats sur la migration ont surpris les commentateurs tant nationaux qu'étrangers. Au cours de la première année au pouvoir du nouveau gouvernement de droite, soutenu par le puissant Parti populaire danois, le Danemark a mis en place l'un des régimes d'immigration les plus fermés et restrictifs d'Europe. L'article s'attache à la récente politisation des questions de migration dans ce pays. Sans négliger le souci réel de compatibilité de ‘l'altérité’ des migrants, notamment l'Islam, avec la société et les normes danoises, il expose un problème aussi, voire plus crucial: le ‘coût de la migration’ selon les bases de la politique sociale nationale. Compte tenu des forts taux de chômage, les migrants et leurs descendants reçoivent une part relativement importante des contributions sociales danoises. D'où une question plus générale sur la façon de combiner immigration et système social universel financé par la fiscalité, où tous ont droit à l'intégralité des prestations sociales dès leur arrivée. En réponse, le gouvernement a tronqué les deux câtés de l'équation, en appliquant des règles d'entrée plus strictes pour la réunification familiale et les demandeurs d'asile, tout en créant une rupture historique avec le principe de prestations sociales égales pour tous les résidents légaux.
Unruly strangers? The 2001 urban riots in Britain
Authors: Amin Ash
Published: August 2003

This article examines issues of place and citizenship raised by the riots in summer 2001 in Bradford, Oldham and Burnley, when Asian youths took to the street to protest against the long‐term marginalization and discrimination of working‐class Asians. The article summarizes the forces that triggered the riots, ranging from the activities of the far right and the police to the role of community leaders and the absence of economic opportunity. The thrust of the argument, though, is to argue that the riots should be read in terms of the mature claim of a section of British society for recognition as fully‐fledged citizens of a multi‐ethnic and multicultural society, rather than as claims of ethnic recognition alone.

Cet article étudie les problèmes de place et de citoyenneté soulevés par les émeutes de l'été 2001 è Bradford, Oldham et Burnley, quand de jeunes asiatiques sont descendus dans la rue pour protester contre les marginalisation et discrimination constantes de la classe ouvrière asiatique. L'article énumère les forces à l'origine du soulèvement, allant des activités de l'exträme droite et de la police au rôle des leaders des communautés et à l'absence de perspective économique. Toutefois, l'argument essentiel affirme que les émeutes doivent ätre vues en termes de revendication réfléchie d'une partie de la société britannique pour une reconnaissance en tant que citoyens à part entière dans une société multi‐ethnique et multiculturelle, et non comme des exigences de reconnaissance ethnique uniquement.
Schools and Educational Outcomes: What Causes the “Race Gap” in Student Test Scores?*
Authors: Bali Valentina A. , Alvarez R. Michael
Published: August 2003

Objective.African‐American and Hispanic students often have lower test scores than white students at all levels of education. In this article, we examine whether school factors impact racial groups differentially, helping reduce the test score gaps, and whether school policies benefit one racial group at the expense of another.

Methods.The data is individual‐level data from a school district in California. Multivariate analysis (FGLS) is used to study the effect of school factors and race on test scores, after controlling for individual and school attributes.

Results.School factors have a small differential effect by race on test scores. The school policies that have a positive influence on minorities' scores often involve an environment where closer attention is paid to the needs of students.

Conclusion.Most school policies have a small effect on test scores, impacting all racial groups in a similar manner, without redistributing benefits across groups.
Teacher‐Student Racial Congruence, Teacher Perceptions, and Test Performance*
Authors: Oates Gary L. St. C.
Published: August 2003

Objective. This research explores the seldom‐addressed question of whether teacher‐student racial congruence conditions the impact of teacher perceptions on performance.

Methods. Multipopulation LISREL models (utilizing data from the NELS) compare the effect of white teachers' perceptions on African‐American standardized test performance to the corresponding effect among white students. Parallel models compare the impact of African‐American teacher perceptions across races. Preliminary models gauge whether the match/mismatch of teacher's and student's race shapes teacher perceptions of African‐American and white students.

Results. The impact of teachers' perceptions on test performance shows signs of being especially pronounced in the racially dissonant white teacher‐black student context—the very context where teacher perceptions seem especially likely to be unfavorable.

Conclusions. This research provides new insight on the relevance of teacher perceptions to the black‐white performance gap. Racial congruence seems primarily consequential to African‐American test performance—shaping both teacher perceptions and (somewhat less so) the impact of such perceptions on performance.
Do Human Rights Matter in Bilateral Aid Allocation? A Quantitative Analysis of 21 Donor Countries*
Authors: Neumayer Eric
Published: August 2003

Objective. To analyze the role of human rights in aid allocation of 21 donor countries.

Methods. Econometric analysis is applied to a panel covering the period 1985 to 1997.

Results. Respect for civil/political rights plays a statistically significant role for most donors at the aid eligibility stage. Personal integrity rights, on the other hand, have a positive impact on aid eligibility for few donors only. At the level stage, most donors fail to promote respect for human rights in a consistent manner and often give more aid to countries with a poor record on either civil/political or personal integrity rights. No systematic difference is apparent between the like‐minded countries commonly regarded as committed to human rights (Canada, Denmark, the Netherlands, Norway, and Sweden) and the other donors.

Conclusions. Contrary to their verbal commitment, donor countries do not consistently reward respect for human rights in their foreign aid allocation.
Railroad Construction and Antebellum Slave Prices*
Authors: Yanochik Mark A. , Thornton Mark , Ewing Bradley T.
Published: August 2003

Slave prices rose rapidly to historic highs in the late‐antebellum South. The boom in railroad construction in the South helps explain this large increase in slave prices. The economic connection between railroads and slave prices reconciles the views of traditional economic historians who thought slavery was economically irrational and the views of the new economic historians who have concluded that slavery was highly profitable. It was the massive public subsidies to railroads that explain it was public policy that provided the stimulant to slave prices, not the “peculiar” culture of the antebellum South or the planter efficient management of slave labor.
The Politics of Judicial Selection
Authors: Champagne Anthony
Published: August 2003

Some of Stuart Nagel's earliest work has a continuing significance to research on the selection of state court judges. His research provides answers to why partisan election of judges, in spite of the flaws of this selection system, remains a major system for selecting state court judges. And Nagel's early research offers important insight about contemporary issues in the selection of judges such as the differences between elected and appointed judges and the role of race and ethnicity in judicial decision‐making.
Judicial Review of Agency Interpretation of Statutes: Deference Doctrines in Comparative Perspective
Authors: Tolley Michael C.
Published: August 2003

Examined in this article are the deference doctrines developed by courts in the United States, Canada, Britain, Australia and South Africa. Deference doctrines determine when and if courts are to defer to an agency's reasonable interpretation of the ambiguous terms of the statute that the agency administers. The study of deference doctrines in comparative perspective reveals much about the need for agency autonomy in the modern administrative state and the capacity of courts to maintain the delicate balance and remedy abuses of discretion. It also provides an opportunity to determine how well the leading theories of judicial decision making explain the variety of judicial responses to the common problem of deference to agency interpretation of statues.
Presidential Policymaking in Crisis Situations: 9/11 and Its Aftermath
Authors: Crotty William
Published: August 2003

This paper compares the decision‐making approaches of two presidents, John F. Kennedy and George W. Bush, in relation to unanticipated international crises. One, President Kennedy, employed a broad body of expert opinion and entertained a wide range of options in meeting the Cuban Missile Crisis of 1963. The actions taken avoided a potential worldwide nuclear war. The other, George W. Bush, consulted only a few, like‐minded colleagues and appears to have decided early on that a war directed against Iraq and Saddam Hussein was a necessity. The administration's justifications for the war were difficult to prove and the administration chose an essentially bilateral (as against a multi‐lateral) approach. The Iraq War was won fairly easily, although its long‐range consequences remain unclear. The two styles of decision‐making present polarized approaches to international crisis situation management.
Memorial to Stuart S. Nagel
Authors: Crotty William
Published: August 2003

The following memorials to Stuart Nagel attempt to recount his life and works and place these in context. As will be shown, he was highly productive and has left a legacy in policy studies, public administration, public laws, and a number of other areas that is extraordinarily impressive.
Major Ecological Transitions in Wild Sunflowers Facilitated by Hybridization
Authors: Rieseberg Loren H. , Raymond Olivier , Rosenthal David M. , Lai Zhao , Livingstone Kevin , Nakazato Takuya , Durphy Jennifer L. , Schwarzbach Andrea E. , Donovan Lisa A. , Lexer Christian
Published: August 2003

Hybridization is frequent in many organismal groups, but its role in adaptation is poorly understood. In sunflowers, species found in the most extreme habitats are ancient hybrids, and new gene combinations generated by hybridization are speculated to have contributed to ecological divergence. This possibility was tested through phenotypic and genomic comparisons of ancient and synthetic hybrids. Most trait differences in ancient hybrids could be recreated by complementary gene action in synthetic hybrids and were favored by selection. The same combinations of parental chromosomal segments required to generate extreme phenotypes in synthetic hybrids also occurred in ancient hybrids. Thus, hybridization facilitated ecological divergence in sunflowers.
Galaxy Disruption in a Halo of Dark Matter
Authors: Forbes Duncan A. , Beasley Michael A. , Bekki Kenji , Brodie Jean P. , Strader Jay
Published: August 2003

The relics of disrupted satellite galaxies have been found around the Milky Way and Andromeda, but direct evidence of a satellite galaxy in the early stages of disruption has remained elusive. We have discovered a dwarf satellite galaxy in the process of being torn apart by gravitational tidal forces as it merges with a larger galaxy's dark matter halo. Our results illustrate the morphological transformation of dwarf galaxies by tidal interaction and the continued buildup of galaxy halos.