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The ability of infants to recognize phonotactic patterns in their native language is widely acknowledged. However, the specific ability of infants to recognize patterns created by nonadjacent vowels in words has seldom been investigated. In Semitic languages such as Hebrew, groups of multisyllabic words are identical in their nonadjacent vowel sequences and stress position but differ in the consonants interposed between the vowels. The goals of this study were to assess whether infants learning Hebrew show a preference for (1) a nonadjacent vocalic pattern or template, common in Hebrew nouns (CéCeC), over a nonattested nonadjacent vocalic pattern (CóCoC), and (2) a nonadjacent vocalic pattern common in Hebrew words (CaCóC) over an existing but less common pattern (CaCéC). Twenty Hebrew‐learning infants aged 8 to 11 months were presented with lists of nonsense words featuring the first two patterns (Experiment 1), and 20 were presented with nonsense words featuring the second two patterns (Experiment 2). The results showed longer listening to CéCeC than to CóCoC lists and to CaCóC than to CaCéC lists, suggesting that infants recognized the common nonadjacent vocalic patterns in both cases. The study thus demonstrates that Hebrew‐learning infants are able to disregard the intervening consonants within words and generalize their vocalic pattern to previously unheard nonwords, whether this pattern includes identical or different vowels and regardless of the rhythmic pattern of the word (trochaic or iambic). Analysis of the occurrence of the relevant vowel patterns in input speech in three Hebrew corpora (two addressed to children and one to adults) suggests that exposure to these patterns in words underlies the infants' preferences. 相似文献
23.
S.P. Segal 《International Journal of Social Welfare》1999,8(1):47-55
Managed care has created a new service environment, eliminating distinctions that have sustained social work ideology and the profession throughout its history. This paper reviews important features of managed care, considers changes it has brought to practice ideology, the practitioner/client relationship, and the practice environment, including social work employment. The paper discusses the new opportunities, challenges and problems that have emerged with this approach.
While social workers should not embrace managed care, they should not run from it or blindly oppose it. They need to aggressively pursue it, fighting its major drawbacks, while adapting to a competitive market place. Given the current managed care market, the social work profession is now in the right place, at the right time, with the right skills, and available at the right price. It must now take on a leadership role to maintain its competitive position, protect its clients and insure quality practice. 相似文献
While social workers should not embrace managed care, they should not run from it or blindly oppose it. They need to aggressively pursue it, fighting its major drawbacks, while adapting to a competitive market place. Given the current managed care market, the social work profession is now in the right place, at the right time, with the right skills, and available at the right price. It must now take on a leadership role to maintain its competitive position, protect its clients and insure quality practice. 相似文献
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Sociological Forum - 相似文献
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Since Becker (1971), a common argument against asymmetric norms that promote minority rights over those of the majority is that such policies reduce total welfare. While this may be the case, we show that there are simple environments where aggregate sum of individual utilities is actually maximized under asymmetric norms that favor minorities. We thus maintain that without information regarding individual utilities one cannot reject or promote segregation-related policies based on utilitarian arguments. 相似文献
28.
The measure representation: A correction 总被引:2,自引:2,他引:0
Uzi Segal 《Journal of Risk and Uncertainty》1993,6(1):99-107
Wakker (1991) and Puppe (1990) point out a mistake in theorem 1 in Segal (1989). This theorem deals with representing preference relations over lotteries by the measure of their epigraphs. An error in the theorem is that it gives wrong conditions concerning the continuity of the measure. This article corrects the error. Another problem is that the axioms do not imply that the measure is bounded; therefore, the measure representation applies only to subsets of the space of lotteries, although these subsets can become arbitrarily close to the whole space of lotteries. Some additional axioms (Segal, 1989, 1990) implying that the measure is a product measure (and hence anticipated utility) also guarantee that the measure is bounded. 相似文献
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The current status of and prospects for contraceptive methods is reviewed. Regulations governing the development, safety, and effectiveness of contraceptive methods are discussed, as well as the nature of the female and male reproductive system. Methods reviewed include coitus interruptus, the condom, spermicidal contraceptive agents, postcoital douching, the vaginal diaphragm, male and female sterilization, the rhythm method, oral contraceptives, IUDs, induced abortion, progesterone-releasing IUDs, postcoital estrogens, abortifacient agents (prostaglandins), immunization against human chorionic gonadotropin (HCG), pharmacologic suppression of the corpus luteum, long-acting injections of Depo-Provera, implantation of capsules containing norgestrel, the intravaginal ring, intracervical devices, release of contraceptive steroids through an arm bracelet, and male contraceptive agents. New areas of contraceptive research include influencing the release of luteininzing hormone-releasing hormone, 'turning-off' corpus luteum function in early pregnancy by competitors for HCG, affecting sperm or ovarian membranes to prevent fertilization, and interferring with sperm and egg development. 相似文献