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1.
This paper focuses on four recent United States Supreme Court decisions which have profound implications for political redistricting. These cases are Holder v. Hall, Johnson v. De Grandy, Shaw v. Reno and Miller v. Johnson. Each of these cases place limits on the scope of Section 2 of the Voting Rights Act when conducting a political redistricting or fashioning a remedy for a Section 2 violation. These cases have resolved a number of important issues in redistricting while creating yet new issues to be resolved. Although demographers are not in the business of practicing law, they must clearly understand the legal requirements and often subtle nuances imposed by the case law. The paper concludes that the combined force of these cases does not yet spell the end of race conscious redistricting and therefore, effectively repeal the Voting Rights Act but does require that more weight be given to traditional redistricting criteria when designing districts that will withstand legal challenges.  相似文献   

2.
Summary Taylor's (1984) view that his power law is better measurement of the distribution pattern of animals than 1/k, I ρ and relation because almost all the data on means and variances of given species could be fitted by the power low, was critisized. Changes in values of 1/k, I ρ and suggest the change of distribution pattern of the species, but the data can still be fitted by the power law because of the great linearizing power of log-log plots, and, using the power law only, we shall overlook the information on the meaningful changes in the distribution pattern.  相似文献   

3.
These Rules, issued by the Government of Shaanxi Province, China, are as follows: "a) in appropriate residence-building sites and contracting economic forest, priority is given to those who practise family planning conscientiously; b) [a] bigger plot of land for producing mouth grain and of contracted land can be allocated to those single children who have received single child certificates; c) the quota of land appropriated for residence-building sites shall not be raised for those who have unplanned births, and no land for residence-building sites is given to those who get married below the legal age for marriage or who cohabit without going through the formal procedures of marriage registration; d) to those who have a first parity but early birth or a second birth without adequate spacing, appropriation of one person's share of contracted land will be delayed, and to those who have unplanned births, only half a share of contracted plot of land will be appropriated at a deferred date; e) those who violate the family planning policy or refuse to practise family planning shall not be permitted to contract economic forest."  相似文献   

4.
A traditional subject for discussion in population debates is whether the world or any subdivisions of it are overpopulated. Some proclaim that we are indeed in a state of overpopulation, while others persistently deny this claim. However, statements which proclaim or deny overpopulation are almost never accompanied by satisfactory definitions as to what overpopulation means. This is most unsatisfactory, especially because whether or not overpopulation is a fact is often claimed to be crucial when it comes to the justification of population political recommendations. This article considers an argument from overpopulation, according to which overpopulation justifies policies which reduce population size; and an argument against overpopulation, according to which the fact that present problems can be handled without population reductions establishes that there is no state of overpopulation. Both arguments are rejected by clarifying possible definitions of overpopulation.  相似文献   

5.
Abstract 1.1. The course of Spanish population growth from the end of the 16th to the beginning of the 18th century was set by the effects of what demographers call 'catastrophic' mortality. As in most European populations, the occasional but recurrent ravages of epidemics, especially plague, wiped out the excess of births over deaths accumulated in 'normal' years. How accurate and close to reality this statement is cannot be discussed here; but we shall assume that, until the rSth century, short-term growth was offset by mortality above the normal levels caused by epidemics.  相似文献   

6.
Since the 1949 revolution, Chinese population policy has undergone many shifts that have alternated with general political trends. However, in the past two decades the policy has grown increasingly antinatalist as a response to slower-than-desired economic development and rapid population growth. The remarkable declines of fertility during this period have been made possible by effective contraceptive technology, efficient administration, tight political organization down to grass-roots levels, and by linking national goals of population control to patriotism. Recent minor reverses in policy and in fertility suggests that there are practical limits to such policies, but other countries have much to learn from the Chinese experience.This is an updated version of a paper published in theNPG Forum, Negative Population Growth, Inc. October, 1989.  相似文献   

7.
This paper seeks to demonstrate a tradition of argument that starts with Malthus' writings on population and on the environmental limits to growth, and continues in today's neo-conservative writings on ‘mobilized demand’ and the social limits to growth. The basic Malthusian theorem shows a concern with effective or mobilized demand. In this form, the theorem can readily accommodate changes that so-called neo-conservatives were to introduce in centuries that followed. Today the debate on the perfectibility of man, and the end-point of progress continues; only the terms of reference have changed. A key modification is the switch of concerns from physical to social limits. This switch is exemplified in Fred Hirsch's book, Social Limits to Growth, which introduces the useful concept of ‘positional goods’ to help account for the unsatisfiability of modern wants. The paper concludes with a quote from Keynes, which clearly establishes the line of development from Malthus to the neo-conservatives; and with a question, asked by one of Keynes's critics, that can be addressed to the entire tradition Malthus founded.  相似文献   

8.
Summary Three species of the fresh water carnivore hydra,H. littoralis, H. pseudoligactis, andC. viridissima present a graduation in size with the first species the largest and albinoChlorohydra the smallest. When presented with a daily overabundance of food (artemia), considerable variation in food intake and gross efficiency of growth (proportion of food energy consumed that is turned into new protoplasm or buds) existed among the species. The degree of association between size of species and food intake was highly significant. However, budding efficiency among the species was found to be independent of food intake (when the effects of species size were eliminated) and of species size (when the effects of food intake were removed). However, species with high (low) efficiencies have significantly higher (lower) reproductive rates. A lowering of the temperature from 25° to 15° C. increased the size of the species, increased food intake, but decreased reproductive rate. In all species exceptH. pseudoligactis a corresponding increase in the production of bud energy with no change in efficiency also occurred. On the other hand, lowering of the temperature forH. pseudoligactis significantly lowered reproductive efficiency but had no effect on the total calorific output of buds. This species, in constrast to the others, appears to have a compensatory ability to adjust its efficiency to maintain a high calorific output when temperature increases. It was also found that albinoChlorohydra have budding efficiencies of around 35 percent which are not influenced by changes in food intake or light. Normal green hydras, however, have efficiencies which range from 40 to 62 percent above their albino counterparts when fed once a day and once every two days in light respectively. It it concluded first, that the symbiotic algae in the gastrodermals cells of green hydra contribute quantitatively in the order of the above amounts to the growth process in this species, and second, that green hydras have the ablity to increase their growth efficiency when food intake is reduced thus reducing the drop in calorific but output that normally occurs in the albino (control) form. This study was supported by a National Science Foundation Grant (GB-912)  相似文献   

9.
The Treaty Establishing a Constitution for Europe was signed by the heads of government of the 25 European Union member states and three candidate states on 29 October 2004. The Treaty in effect is the proposed constitution, a long and elaborate document comprising 448 Articles (grouped into four Parts, with additional divisions into Titles, Chapters, and Sections, but numbered consecutively throughout) and 29 Protocols—annexes to the Treaty. Five articles and four protocols are concerned with issues of border control, immigration, and asylum policy. The articles are found in the chapter titled Area of Freedom, Security and Justice in Part III of the Treaty (The Policies and Functioning of the Union). These are reproduced below, along with one of the protocols (number 21). (Of the other protocols concerned with migration, one adds to the Treaty the provisions of the Schengen Acquis, the agreement among all EU members except the United Kingdom and Ireland, plus the non-EU states Norway and Iceland, to eliminate border controls at their common frontiers, and requires acceptance of the Acquis by any new member. Two other protocols set out reservations on the part of the UK and Ireland on border control and asylum matters—basically, an “opt-in” stance, allowing their participation in Treaty provisions on a case-by-case basis.) The constitution is highly detailed in scope but often vague in content, merely specifying topics on which policies will be developed or laws enacted. Thus the “common immigration policy” that is signaled in Article III-267 is yet to be shaped, and the Treaty offers few hints of what it may look like. A reluctance on the part of member states to cede sovereignty in the area of immigration is not limited to the British Isles. It is seen also in the retained right of all members to restrict non-EU labor migrants (Article III-267, Para. 5) and to conclude bilateral agreements on border crossing with non-EU states (Protocol 21). It is notable that the Treaty, while stressing that all nationals of member states are citizens of the Union with the right “to move and reside freely” within its territory, does not attempt to harmonize conditions or procedures under which migrants can acquire citizenship: indeed, it says nothing at all on the matter. (A “framework law,” mentioned at various points in the text, is a law that prescribes the result to be achieved but leaves to each member state “the choice of form and methods.”) Actual adoption of the constitution requires ratification by the governments of all EU members. If this demanding hurdle is passed (requiring parliamentary approval or, in some cases, a referendum), the constitution would come into force on 1 November 2006—or after the final ratification, if later. Under Article IV-443, if the treaty is ratified by four-fifths of members within the two years but is rejected by one or more states, “the matter shall be referred to the European Council”—the quarterly summit meeting of heads of government.  相似文献   

10.
There appears to be a high degree of public tolerance for celebrities who misbehave and break the law. This has given rise to concerns that celebrities are bad role models who are glamorizing antisocial behaviour. However, it would be wrong to suggest that celebrity antics are uniformly tolerated and accepted by the public. The reputation of some celebrities is undoubtedly seriously affected when they breach moral, legal and social codes, while other celebrities suffer few adverse effects. This paper examines the importance of gender and class in ascertaining the limits of permissiveness that apply to celebrity wrongdoing. Female celebrities of a lower-class status are often subjected to very high levels of public scrutiny and punitive media commentary. This point will be illustrated with reference to the British reality TV star Jade Goody and her fall from grace following public outcry about her treatment of her co-contestant Shilpa Shetty on Celebrity Big Brother 2007.  相似文献   

11.
Summary A population dynamic model of Batesian mimicry, in which populations of both model and mimetic species were considered, was analyzed. The probability of a predator catching prey on each encouter was assumed to depend on the frequency of the mimic. The change in population size of each species was considered to have two components, growth at the intrinsic growth rate and carrying capacity, and reduction by predation. For simplicity in the analyses, three assumptions were made concerning the carrying capacities of each population: (1) with no density effects on the mimic population growth rate; (2) with no density effects on the model species; and (3) with density effects on both species. The first and second cases were solved analytically, whereas the last was, for the most part, investigated numerically. Under assumption (1), two stable equilibria are possible, in which both species either coexist or go to extinction. Under assumption (2), there are also two stable equilibria possible, in which either only the mimic persists or both go to extinction. These results explain the field records of butterflies (Pachliopta aristolochiae and its mimicPapilio polytes) in the Ryukyu Islands, Japan.  相似文献   

12.
A new paradigm is needed for industrial civilization, because neither the traditional theory of exponential industrial growth nor the more recent steady-state hypothesis can satisfactorily explain historical data. As a basis for the paradigm, the long sweep of human history is divided into three phases: (1)pre-industrial, (2)industrial, and (3)de-industrial. This essay focuses on the second, or industrial, phase. The paradigm is embodied in four theories. The first theory states that industrial civilization can be graphed over time by energy-use per person in the shape of asingle pulse waveform. The second theory is derived from a well-established principle of human ecology. It defines a set ofnecessary conditions for the advance, stagnation and decline of industrial civilization in terms of world total energy-use and world total population. Next, the subject ofgoverning is analyzed in terms of ten requirements for system control. The third theory is derived from this analysis. It relates thesize, orcomplexity, of a society over time to the average energy-use per person in that society. Historical population and energy-use data and other considerations are used as the basis for the fourth theory. This, a predictive theory, states that thelife-expectancy of industrial civilization is less than 100 years.  相似文献   

13.
Research has demonstrated that son preference has a serious impact on the survival and well-being of female infants and children in some parts of South and East Asia, but little is known about the consequences of son preference in later childhood and adolescence. We compare children's growth trajectories in height over childhood and adolescence in China, where the level of son preference is relatively high, and the Philippines, where it is relatively low. Children's height reflects long-term nutritional status and exposure to infectious diseases, both influenced by household decision-making and, presumably, by a preference for sons. Using data from two high-quality longitudinal studies and multilevel growth models, we find that male children in China show an additional height advantage relative to their female counterparts, when compared to the sex difference in growth trajectories in the Philippines. Further analysis reveals that the additional advantage of males in China is stronger in rural areas.  相似文献   

14.

The fertility rate in Hong Kong has been very low for decades. Because work–family conflict is one of the major barriers for married couples in actualizing their fertility ideals, domestic outsourcing that relieves women from the burden of domestic labor may help reduce the gap between ideal and actual fertility. Hiring live-in domestic helpers, who co-reside with the hiring families and work on a full-time basis, is gaining popularity in Hong Kong. However, past studies neither inside nor outside of East Asia have examined how employing live-in helpers affects fertility. This study investigates the relationship between live-in helpers and fertility by analyzing retrospective event-history data we collected from a representative survey of married couples in Hong Kong (n?=?1697). Our results show that married couples employing live-in helpers tend to have more children than couples not employing live-in helpers. Specifically, the practice is associated with higher odds of first childbirth and of second childbirth, with no evidence of a positive effect beyond bearing a second child. The findings have implications for other East Asian societies, which share similar backgrounds of ultra-low fertility rates, rising female labor force participation rates, rigid gender inequalities in domestic labor, and demanding work cultures.

  相似文献   

15.
Using a range of statistical criteria rooted in Information Theory we show that there is little justification for relaxing the equal weights assumption underlying the United Nation’s Human Development Index (HDI) even if the true HDI diverges significantly from this assumption. Put differently, the additional model complexity that unequal weights add to the HDI more than counteracts the improvement in goodness-of-fit. This suggests that, in some cases, there may be limited validity in increasing the complexity of a range of other composite sustainability indices.  相似文献   

16.
In this paper, we consider two types of population policies observed in practice: birth limits and birth taxes. We find that both achieve very similar equilibrium solutions if tax revenue finances lump-sum transfers. By reducing fertility and promoting growth, both birth policies may achieve higher welfare than conventional education subsidies financed by income taxes. A birth tax for education subsidies can achieve the first-best solution. The welfare gain of the first-best policy may be equivalent to a massive 10–50% rise in income, depending on the degree of human capital externalities and the elasticity of intertemporal substitution.   相似文献   

17.
Men who have sex with men and women (MSMW) are at high risk for HIV. However, the majority of research on populations of men who have sex with men (MSM) combines MSMW and men who have sex with men only (MSMO) samples, which limits our understanding of HIV risk behaviors and factors associated with HIV risk among MSMW populations. We used the BESURE-MSM2, a venue-based cross-sectional study of HIV risk behaviors among MSM in Baltimore, MD, to examine HIV risk among MSMW. MSMW were less likely to report unprotected receptive anal intercourse than MSMO (6.8% vs. 19.6%, p = .0024). Among MSMW, 43.0% reported unprotected sex with a woman in the past year, but only 19.4% reported unprotected sex with both men and women, representing only 5.0% of the total MSM sample. In multivariate analyses, we found that among MSMW having unprotected sex with women in the past year, disclosing same sex behavior and having a main female partner were associated with unprotected anal intercourse with male partners. HIV prevention programs for MSMW are needed that address the complex partnerships of MSMW and the social contextual factors within which relationships and behaviors are embedded.  相似文献   

18.
《Journal of homosexuality》2012,59(4):485-498
While previous research has focused on measuring employment discrimination based on sexual orientation and establishing the need for laws that protect against such discrimination, very little research has evaluated the effectiveness of current nondiscrimination laws. This exploratory research considers the addition of sexual orientation to New York State's Human Rights Law as it relates to employment. In an effort to better understand the implementation and overall effectiveness of the law, attorneys in New York who specialize in employment law were surveyed. The survey results, based on the responses of 34 attorneys, provide insights into how well the law has initially protected individuals from discrimination, and how well it has provided redress for claimants of employment discrimination. The initial results of the research suggest that employees mostly seek redress for a hostile work environment, that potential claimants are concerned with confidentiality and retaliation, and that more training for employees is needed to combat employment discrimination based on sexual orientation.  相似文献   

19.
Summary An increase in fish mortality due to fishing can theoretically change the growth and reproduction of fish populations from the viewpoint of adaptation. We address the issue of how an iteroparous fish should convert surplus energy into somatic growth and reproduction at each age under given conditions of mortality. A model of life history, which maximizes the net reproductive rate using the discrete maximum principle, is improved employing a new relationship between body weight and surplus energy which we have recently proposed. The model is applied to the North Sea plaicePleuronectes platessa, for which it has been reported that the average length of young fish had increased whereas that of old ones had decreased for some decades. Although the model cannot directly explain the former phenomenon, the two phenomena can be interpreted as a change in the optimal life history due mainly to an increase in mortality.  相似文献   

20.
ABSTRACT

This article, which introduces the special issue of the Journal of Homosexuality on “Mapping Queer Bioethics,” begins by offering an overview of the analytical scope of the issue. Specifically, the first half of this essay raises critical questions central to the concept of a space-related queer bioethics, such as: How do we appreciate and understand the special needs of queer parties given the constraints of location, space, and geography? The second half of this article describes each feature article in the issue, as well as the subsequent special sections on the ethics of reading literal, health-related maps (“Cartographies”) and scrutinizing the history of this journal as concerns LGBT health (“Mapping the Journal of Homosexuality”).  相似文献   

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