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Fernando Martins 《LABOUR》2015,29(3):291-309
This paper exploits the information collected from a survey conducted on a sample of Portuguese firms to study the patterns of firms’ price and wage adjustments and the extent of nominal price and wage rigidities. The evidence shows that the frequency of price changes varies substantially across sectors and depends on the intensity of competition, the share of labor costs and firms’ price reviewing behavior. The results also suggest that the constraint imposed by the presence of downward nominal wage rigidity is less important in firms where the fraction of permanent and high‐skilled workers is lower and the share of flexible pay components is higher. 相似文献
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Following up on a research note by Stephen Moore published in 1985, this article compares the results of the survey conducted
in 1985 against one carried out in 2006 on the views of eminent social scientists (economists, political scientists, psychologists,
sociologists, historians and anthropologists) on immigration issues. Specifically, the surveys report on whether the respondents
are likely to favor an increase in the number of immigrants who are allowed into the United States and other issues such as
whether immigrants improve the economy.
Rita J. Simon is a sociologist who earned her doctorate at the University of Chicago. She is currently a “University Professor” in the School of Public Affairs and the Washington College of Law at American University, Washington, DC. Professor Simon has authored 37 books and edited 19 including: Immigration the World Over with James P. Lynch. She served as editor of The American Sociological Review and from 1983–1986 as editor of Justice Quarterly. In 1966, she received a Guggenheim Fellowship. Jennifer Kanaan is a doctoral candidate in Justice, Law and Society at American University in Washington, DC. 相似文献
Rita J. SimonEmail: |
Rita J. Simon is a sociologist who earned her doctorate at the University of Chicago. She is currently a “University Professor” in the School of Public Affairs and the Washington College of Law at American University, Washington, DC. Professor Simon has authored 37 books and edited 19 including: Immigration the World Over with James P. Lynch. She served as editor of The American Sociological Review and from 1983–1986 as editor of Justice Quarterly. In 1966, she received a Guggenheim Fellowship. Jennifer Kanaan is a doctoral candidate in Justice, Law and Society at American University in Washington, DC. 相似文献
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da Silva Lobo DS Vallada HP Knight J Martins SS Tavares H Gentil V Kennedy JL 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2007,23(4):421-433
Pathological gambling (PG) is an impulse control disorder that has been considered as a behavioral addiction. Recent studies have suggested the involvement of the dopaminergic system in addictions and impulse control disorders and associations of dopamine receptor genes (DRD1, DRD2, and DRD4) and PG have been reported. In the present study, 140 sib-pairs discordant for the diagnosis of PG (70 males and 70 females on each group) were recruited through the Gambling Outpatient Unit at the Institute of Psychiatry, University of Sao Paulo and were assessed by trained psychiatrists. A family-based association design was chosen to prevent population stratification. All subjects were genotyped for dopamine receptor genes (DRD1 -800 T/C, DRD2 TaqIA RFLP, DRD3 Ser9Gly, DRD4 48bp exon III VNTR, DRD5 (CA) repeat) and the dopamine transporter gene (SCL6A3 40 bp VNTR). Our results suggest the association of PG with DRD1 -800 T/C allele T (P = .03). 相似文献
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Patrícia Layne Alves Klebber Teodomiro Martins Formiga Marco Antônio Borges Traldi 《Urban Ecosystems》2018,21(4):697-706
Afforestation is inserted in the urban environment and interferes directly in the surface runoff. In order to quantify the rainfall interception by tree species, an experiment was carried out in the city of Uruaçu, Goiás, Brazil, with the four most common tree species in the urban afforestation of the region. The species chosen were the Mangifera indica (mango tree), the Caesalpinia peltophoroides (sibipiruna tree), the Pachira aquatica (munguba tree) and the Licania tomentosa (oiti). In order to register precipitation, ten pluviographs were used. They are capable of measuring precipitation over time in terms of duration, volume, and intensity. For events with a mean cumulative precipitation of 16.7 mm, the mean values of interception found in each species were: Mangifera indica - 8.0 mm; Pachira aquatica - 7.4 mm; Licania tomentosa - 7.2 mm; and Caesalpinia peltophoroides - 4.8 mm. The research confirms the importance of studies related to the identification of the species’ individual characteristics that interfere in the rainfall interception capacity and that can consequently contribute to urban drainage actions. In addition, it proves the existence of variations of rainfall interception in relation to rainfall events and during their occurrences and emphasizes the need for a careful definition of the species that will compose the urban afforestation. 相似文献
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In studying the complex determinants of human fertility, social scientists have given little attention to population density,
although reproduction has been shown to be density-dependent for a wide variety of other species. Using fixed effects models
on the time series of 145 countries and controlling for key social and economic variables, we find a consistent and significant
negative relationship between human fertility and population density. Moreover, we find that individual fertility preferences
also decline with population density. These findings suggest that population density should be included as a variable in future
studies of fertility determinants.
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Wolfgang LutzEmail: |
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This qualitative study investigates how children of Palestinian political detainees in Israeli detention cope with their fathers' absences. Researchers conducted 16 semi‐structured interviews with children, mostly aged 15 and older in the West Bank. Three themes are discussed that emerged from the interview data: how children cope with their sadness; the children's perspectives on community support; and older children's support to siblings and parents. Practitioners can support children by providing counselling to mothers and organising interventions, which give children the opportunity to connect. It is important that the agency of the older children is taken into account and built upon. 相似文献