bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessment of the within‐family environment in twins: absolute versus differential ratings, and relationship with conduct problems
Authors: Carbonneau Rene , Eaves Lindon J. , Silberg Judy L. , Simonoff Emily , Rutter Michael 
Published: March 2003

Background: The aim was to compare the psychometric properties of absolute versus differential ratings of the within‐family environments and to examine their associations with conduct problems in 8–16‐year‐old twins. Methods: The sample comprised 1117 pairs of like‐sex male and female twins and their parents, recruited from the school population of Virginia. The within‐family environment was assessed from the Twin Inventory of Relationships and Experiences (TIRE), which provided measures of differential parental criticism, parental preference for one twin, and twins' peers' conduct problems, as rated by mothers, fathers and each of the twins. Twins' conduct problems were assessed by a modified version of the Olweus questionnaire. Results: Although differential ratings and absolute ratings had similar psychometric properties, the use of absolute ratings to differentiate the twins resulted in a construct with weak inter‐rater agreement and low stability over time. Differential ratings of the twins' environment showed significant associations with differences in conduct problems between the twins, whereas the difference in absolute ratings of each twin did not. The differential parental criticism effect was uninfluenced by the overall level of criticism in the family. Conclusions: A direct contrast between siblings or twins, as part of the rating procedure (as provided by differential ratings), may be a more efficient way to assess aspects of the within‐family environment that are reliable and which are associated with psychopathology. Both differential parental criticism and peers' conduct disturbance were associated with conduct problems in the twins. TIRE: Twin Inventory of Relationships and Experiences; VTSABD: Virginia Twin Study of Adolescent Behavioral Development
Protest Cycle, Political Violence and Social Movements in the Basque Country
Authors: Tejerina Benjamín 
Published: March 2003

A close look at the groups, organisations and social movements among which a terrorist organisation seeks refuge and support, will provide a fundamental and strategic view of its evolution. By means of the concept of a protest cycle, I analyse the relationship between political violence and social movements in the Basque Country. With the help of Tarrow's fundamental variables in the political structure, to which I have added the degree of consciousness‐raising and mobilisation in civil society, I aim to study the protest cycle of ETA's violence from its social origins at the start of the 1960s, through its consolidation in the 1970s, to its decline from the mid‐1980s onwards.The idea I will defend is that political violence should be seen as a form of collective action directed towards a mobilisation of society, and that its vicissitudes depend on the structure of interactions set up between the armed organisation, social movements and civil society.
Shaping Women: National Identity Through the Use of Language in Franco's Spain
Authors: Carbayo‐Abengózar Mercedes 
Published: March 2003

In my article I show how a very particular identity was created for women during the period of Franco's Spain. I will draw upon a varied range of materials from official discourses, particularly the Sección Femenina (the women's branch of Falange); the Álvarez Enciclopedia and other texts such as songs, poems and the popular press.Following Foucault (1980: 30) I analyse an identity based on oppressive discourses whose power ‘reaches into the very grain of individuals, touches their bodies and inserts itself into their actions and attitudes, their discourses, learning process and everyday life’. The nationalistic stress of this discourse is one that encourages women to create a new image of Spanish femininity that should be ‘different’ from the liberated portrayal of women coming from Europe, mainly through the path of growing tourism.The language of these discourses is somehow baroque, elaborated, energetic and highly dramatic. It tries to seek attention through an unnecessary and badly misorientated dramatism. It is cryptic and manipulative and claims to be poetical, but its main intention is to confine women indoors and to make them look at the world through the curtains or from a closed window. On the other hand it made women feel they were the representation of a unique matriarchal nationalism making them appear as the heroines of an essentialist national metaphor: women mothers of the nation.Inherent in Franco's equation of women = femininity = nation is a contradiction that defines women as ‘indoor heroines’ and bases nationalism in a naturalised representation of gender where women are a gendered representation of this nationalism.
Similarity and discrimination in human Pavlovian conditioning
Authors: Kinder Annette , Lachnit Harald 
Published: March 2003

AbstractWe report three Pavlovian eyelid conditioning experiments with humans, designed to experimentally decide between elemental and configural learning theories. We used two different designs originally proposed by Redhead and Pearce (1995). In Experiments 1 and 2, three stimulus elements, A, B, and C, were presented in all possible combinations. All patterns were reinforced except for pattern ABC (A/B/C+, AB/AC/BC+, ABC−). According to elemental learning theories, response proportions on A/B/C+ trials should be smaller than on AB/AC/BC+ trials, whereas configural learning theory makes the opposite prediction. The results confirmed neither prediction. In Experiment 3, the A/B/C+, AB/AC/BC+, and ABC−trials were interspersed by D/E/F−, DE/DF/EF−, DEF+ trials. Again, neither prediction was confirmed. We suggest a modification of configural learning theory as a possible explanation of our results.
The Effect of Time‐Series and Cross‐Sectional Heterogeneity on Panel Unit Root Test Power
Authors: Geppert John M. , Jares Timothy E. , Lavin Angeline M. 
Published: March 2003

AbstractPanel unit root tests represent a significant advancement in addressing the low power of unit root tests by exploiting cross‐sectional and time‐series information. In this article we employ Monte Carlo techniques to quantify the power improvements due to cross‐sectional information and assess test sensitivity to heterogeneous data. Pooling the data alleviates negative effects of slowly adjusting equilibrium relations as well as persistence in the forcing variable. However, if the panel contains a mixture of unit root and stationary series, the power of the test decreases substantially and the interpretation of the results becomes tenuous.
Forecasting Emerging Market Exchange Rates from Foreign Equity Options
Authors: Chu Ting‐Heng , Swidler Steve 
Published: March 2003

AbstractThe use of derivatives to infer future exchange rates has long been a subject of interest in the international finance literature. With the recent currency crises in Mexico, Southeast Asia, and Brazil, work on exchange rate expectations in emerging markets is of particular interest. For some emerging markets, foreign equity options are the only liquid exchange‐traded derivatives with currency information embedded in their prices. Given that emerging markets sometimes undergo currency realignment with discrete jumps in their exchange rate, estimation of risk‐neutral probability density functions from foreign equity option data provides valuable evidence concerning market expectations. To illustrate the use of foreign equity options in estimating market beliefs, we consider Telmex options around the 1994 peso devaluation and find evidence that markets anticipated the change in the Mexican government's foreign exchange policy.
Are All Security Analysts Equal?
Authors: Chen Carl R. , Chan Kam C. , Steiner Thomas L. 
Published: March 2003

AbstractWe examine the extent to which security analysts are homogeneous in their effect on firm valuation as measured by Tobin's Q. Earlier research documents a significant and positive relation between analyst coverage and firm valuation. We identify three classes of equity analysts and examine their differential effect on firm valuation associated with their coverage and their information production. We find that equity analysts are not homogeneous in their effect on firm valuation. The presence of analysts at national securities firms have the strongest effect on firm valuation followed by analysts at regional securities firms and finally analysts at nonbrokerage, or research, firms. We attribute this result to the differential monitoring and information dissemination function rendered by the analysts. Information produced by analysts, however, does not share the same credibility. Specifically, we find brokerage firms' buy recommendations are discounted by the market and have a weak effect on firm valuation. The results can be supported by arguments that brokerage firm analysts' recommendations are contaminated by their firms' investment banking relations with corporations.
On the Statistical Significance of Event Effects on Unsystematic Volatility
Authors: Hilliard Jimmy E. , Savickas Robert 
Published: March 2003

AbstractWe develop a method for determining the significance of the effect of a certain event (stock split, corporate restructuring, change in regulation, etc.) on unsystematic volatility of asset returns. Simulations show that the suggested tests reject the true null hypothesis of no effect on volatility at appropriate levels, whereas the rejection rates of a false null hypothesis increase with the magnitude of the effect. An application of the method to corporate spin‐offs reveals statistically significant and long‐lasting estimated increases in unsystematic volatility of parent companies' returns.
The Hull and White Model of the Short Rate: An Alternative Analytical Representation
Authors: Grant Dwight , Vora Gautam 
Published: March 2003

AbstractHull and White extend Ho and Lee's no‐arbitrage model of the short interest rate to include mean reversion. This addition eliminates the problem of negative interest rates and has found wide application. To implement their model, Hull and White employ a sequential search process to identify the mean interest rate in a trinomial lattice at each date. In this article we extend Hull and White's work by developing an analytical solution for the mean interest rate at each date. This solution applies equally well to trinomial lattices, interest rate trees, and Monte Carlo simulation. We illustrate the analytical result by applying it to an example originally used by Hull and White and then for valuing an option on a bond.
Cross‐Listings and Home Market Trading Volume: The Case of Malaysia and Singapore
Authors: Ting Lau Sie , McInish Thomas H. 
Published: March 2003

AbstractCross‐listings of equities internationally are becoming more common. Using data for Europe and North America, previous studies reject the order flow diversion hypothesis, which states that international cross‐listings reduce home‐country trading volume. We test this hypothesis using data for equities cross‐listed in Singapore and Malaysia. We find that trading volume in Malaysia fell 42.9% when Singapore markets were closed for holidays. Furthermore, we show that trading volume in Malaysia did not increase following the implementation of regulations that ended the trading of Malaysian equities in Singapore in 1998. Hence, we reject the order flow diversion hypothesis.
Government Bond Market Seasonality, Diversification, and Cointegration: International Evidence
Authors: Smith Kenneth L. 
Published: March 2003

AbstractUsing government bond market data for the United States, Canada, the United Kingdom, Germany, France, and Japan, I investigate several hypotheses. Market efficiency is investigated by testing for seasonality and cointegration. The seasonality results are mixed. In regression tests, a January effect is detected in several markets (United States, Germany, France, United Kingdom, and Canada) using local currencies. However, in a nonparametric test, the January effect is supported only for France. When U.S. dollar returns are used, regression results also reveal a January effect for several markets (United States, Germany, France, and United Kingdom). These results are not confirmed by a nonparametric test. Correlation analysis shows considerable diversification opportunities for short‐term investors. Cointegration tests indicate that several of the markets share cointegrating vectors, increasing the possibilities of using other endogenous bond markets to better predict movements in a particular market.
Consolidating Corporate Control: Divisional Versus Whole‐Company Leveraged Buyouts
Authors: Bae Sung C. , Jo Hoje 
Published: March 2003

AbstractWe examine the empirical relation between firm characteristics and the likelihood of choosing a restructuring choice between two types of leveraged buyouts: a whole‐company leveraged buyout (WLBO) and a divisional leveraged buyout (DLBO). Our findings suggest that firm characteristics such as volatility of cash flow and growth potential play an important role in determining a firm's restructuring choice between a WLBO and a DLBO. In particular, firms with greater volatility of cash flow and/or greater future growth potential are more likely to adopt a DLBO than a WLBO as their restructuring choice. These results are consistent with the notion that although low‐growth, high‐cash‐flow firms would create the most value for stockholders by paying out cash and tying future cash flows to the firm's debt service through a WLBO, high‐growth, low‐cash‐flow firms would be better off by selling assets if those assets would be better managed under a DLBO.
The Impact of the European Union Insurance Directives on Insurance Company Stocks
Authors: Campbell Cynthia J. , Goldberg Lawrence , Rai Anoop 
Published: March 2003

AbstractThis article examines the impact of the passage of the Second and Third Life and Non‐Life European Insurance Directives on insurance firms located in 14 European Union countries, Norway, and Switzerland. The third directives have a wealth effect on the European insurance market, while the second directives do not. The Third Life Directive resulted in a wealth increase for the European insurance market, while the Third Non‐Life Directive had a modest negative wealth effect. The wealth effects differ at both the country and firm level. The directives have differential impacts on firms depending on the firms’ characteristics and those of the market they operated in prior to the directives. Regression results indicate that the second directives have impacted firms in protected markets negatively, especially those with higher debt and higher returns on assets. At the time of the third directives, insurance firms benefited, even those in previously protected markets, indicating that firms may have positioned themselves in preparation for the liberalization of the laws.
The Equality of Public School District Funding in the United States: A National Status Report
Authors: Moser Michele , Rubenstein Ross 
Published: March 2003

For over 30 years, the distribution of educational opportunities and the equality of education funding across communities has generated considerable interest among policy makers, the public, and the courts. This article takes advantage of national data sets to examine funding equality across school districts in 49 states for fiscal years 1992 and 1995. It presents rankings of each state's funding equality and explores factors that may be related to the level of equality within states and to changes across years.The analyses suggest that, overall, within‐state equality improved slightly between 1992 and 1995, although most states' relative rankings changed little during the period. States with fewer school districts relative to students tended to have a more equal distribution of education dollars than states with more districts. States with higher proportions of revenues provided by state governments generally showed a more equitable distribution of resources than states in which districts were more dependent on local revenues.
Mutual Fund Advisory Contracts: An Empirical Investigation
Authors: Deli Daniel N. 
Published: March 2003

ABSTRACTWe investigate marginal compensation rates in mutual fund advisory contracts and find the following. Equity and foreign fund advisors receive higher marginal compensation than debt and domestic fund advisors. Advisors of funds with greater turnover receive higher marginal compensation. Also, closedend fund advisors receive higher marginal compensation than open‐end fund advisors. Finally, we find that marginal compensation is lower for advisors of large funds and members of large fund families. We argue that these differences in marginal compensation reflect differences in advisor marginal product, differences in the difficulty of monitoring performance, differences in control environments, and scale economies.
Economic Distress, Financial Distress, and Dynamic Liquidation
Authors: Kahl Matthias 
Published: March 2003

ABSTRACTMany firms emerging from a debt restructuring remain highly leveraged, continue to invest little, perform poorly, and often reenter financial distress. The existing literature interprets these findings as inefficiencies arising from coordination problems among many creditors or an inefficient design of bankruptcy law. In contrast, this paper emphasizes that creditors lack the information that is needed to make quick and correct liquidation decisions. It can explain the long‐term nature of financial distress solely as the result of dynamic learning strategies of creditors and suggests that it may be an unavoidable byproduct of an efficient resolution of financial distress.
The Abundant Nuclear Enzyme PARP Participates in the Life Cycle of Simian Virus 40 and Is Stimulated by Minor Capsid Protein VP3
Authors: Gordon-Shaag Ariela , Yosef Yael , Abd El-Latif Mahmoud , Oppenheim Ariella 
Published: March 2003

ABSTRACT
The abundant nuclear enzyme poly(ADP-ribose) polymerase (PARP) functions in DNA damage surveillance and repair and at the decision between apoptosis and necrosis. Here we show that PARP binds to simian virus 40 (SV40) capsid proteins VP1 and VP3. Furthermore, its enzymatic activity is stimulated by VP3 but not by VP1. Experiments with purified mutant proteins demonstrated that the PARP binding domain in VP3 is localized to the 35 carboxy-terminal amino acids, while a larger peptide of 49 amino acids was required for full stimulation of its activity. The addition of 3-aminobenzamide (3-AB), a known competitive inhibitor of PARP, demonstrated that PARP participates in the SV40 life cycle. The titer of SV40 propagated on CV-1 cells was reduced by 3-AB in a dose-dependent manner. Additional experiments showed that 3-AB did not affect viral DNA replication or capsid protein production. PARP did not modify the viral capsid proteins in in vitro poly(ADP-ribosylation) assays, implying that it does not affect SV40 infectivity. On the other hand, it greatly reduced the magnitude of the host cytopathic effects, a hallmark of SV40 infection. Additional experiments suggested that the stimulation of PARP activity by VP3 leads the infected cell to a necrotic pathway, characterized by the loss of membrane integrity, thus facilitating the release of mature SV40 virions from the cells. Our studies identified a novel function of the minor capsid protein VP3 in the recruitment of PARP for the SV40 lytic process.
Treatment of Human Immunodeficiency Virus Type 1 Virions Depleted of Cyclophilin A by Natural Endogenous Reverse Transcription Restores Infectivity
Authors: Khan Mahfuz , Garcia-Barrio Minerva , Powell Michael D. 
Published: March 2003

ABSTRACT

We have previously shown that virions with
nef
deleted can be restored to wild-type infectivity by treatment to induce natural endogenous reverse transcription (NERT). Since Nef and cyclophilin A (CyPA) appear to act in similar ways on postentry events, we determined whether NERT treatment would restore infectivity to virions depleted of CyPA. Our results show that the infectivity of virions depleted of CyPA by treatment with cyclosporine A could be restored by NERT treatment, while mutants in the CyPA binding loop of capsid could only be partially restored. These results suggest that CyPA is involved in some aspect of the uncoating process.
Epstein-Barr Virus Regulates STAT1 through Latent Membrane Protein 1
Authors: Richardson Ciarán , Fielding Ceri , Rowe Martin , Brennan Paul 
Published: March 2003

ABSTRACT
This study shows a mechanism for the increase of signal transducer and activator of transcription 1 (STAT1) in Epstein-Barr virus-immortalized cells. Latent membrane protein 1 (LMP-1) expression was sufficient to induce STAT1 expression, DNA binding, and transcriptional activity. LMP-1-expressing cells can induce an increase in STAT1 expression in LMP-negative cells in the same culture, suggesting an indirect regulation of STAT1 expression. The increase in STAT1 expression is mediated by the C-terminal activating region 1 (CTAR-1) and/or CTAR-2 domains of LMP-1 and is inhibited by mutant IκB, demonstrating a role for NFκB in LMP-1-mediated STAT1 expression.
The CCR5 and CXCR4 Coreceptors Are Both Used by Human Immunodeficiency Virus Type 1 Primary Isolates from Subtype C
Authors: Cilliers Tonie , Nhlapo Jabulani , Coetzer Mia , Orlovic Dragana , Ketas Thomas , Olson William C. , Moore John P. , Trkola Alexandra , Morris Lynn 
Published: March 2003

ABSTRACT
Human immunodeficiency virus type 1 (HIV-1) subtype C viruses with different coreceptor usage profiles were isolated from 29 South African patients with advanced AIDS. All 24 R5 isolates were inhibited by the CCR5-specific agents, PRO 140 and RANTES, while the two X4 viruses and the three R5X4 viruses were sensitive to the CXCR4-specific inhibitor, AMD3100. The five X4 or R5X4 viruses were all able to replicate in peripheral blood mononuclear cells that did not express CCR5. When tested using coreceptor-transfected cell lines, one R5 virus was also able to use CXCR6, and another R5X4 virus could use CCR3, BOB/GPR15, and CXCR6. The R5X4 and X4 viruses contained more-diverse V3 loop sequences, with a higher overall positive charge, than the R5 viruses. Hence, some HIV-1 subtype C viruses are able to use CCR5, CXCR4, or both CXCR4 and CCR5 for entry, and they are sensitive to specific inhibitors of entry via these coreceptors. These observations are relevant to understanding the rapid spread of HIV-1 subtype C in the developing world and to the design of intervention and treatment strategies.