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Seventeen species of Japanese ixodid ticks of the genera Amblyomma, Boophilus, Haemaphysalis, Ixodes, and Rhipicephalus were reared in the laboratory under almost the same cultural conditions. Their major biological characters, such as feeding, molting, oviposition, and hatching, were summarized in tables. There were some differences in these bionomics among the species. The general characteristics common to all the ticks, except Amblyomma testudinarium, were as follows. The feeding period in immature stages and adult females was 3 approximately 5 and 7 approximately 14 days, respectively. The engorged body weight in larvae, numphs, and females was 0.3 approximately 0.5, 3.5 approximately 5.0, and 100 approximately 300 mg, respectively. The potential sexuality could be estimated from the nymphal engorged weight in five species. The larval and nymphal molting periods at 25 degrees C were alike, or 10 approximately 20 days, and there were no significant sexual differences in nymphal molting period among six species. The body weight just after molting in nymphs, males, and females was 0.25 approximately 0.3, 1 approximately 2, and 2 approximately 3 mg, respectively. The pre-oviposition, oviposition, and egg-incubation periods at 25 degrees C were 4 approximately 10 days, 2 approximately 3 weeks, and 1 month, respectively.  相似文献   

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Social stereotypes may be expressed as personal beliefs about the characteristics of a group or as beliefs about the predominant cultural view of a group. In a study with a full intergroup design, Black and White participants rated Black and White racial groups. Results supported 3 sets of predictions derived from a projection model of stereotyping. First, participants' personal beliefs predicted their ratings of cultural stereotypes even when the group averages of personal beliefs and cultural stereotypes were statistically controlled. Second, interrater agreement in stereotype ratings was substantial for both rating tasks. Third, members of both groups underestimated how favorably their own group was rated by members of their respective out-group. Implications of the findings for the mental organizations of stereotypes, their measurement, and their consequences for social behavior are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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Conclusions The results of the work described lead to the conclusion that nonlinear creep plays a dominant role in the mechanism responsible for densification during hot pressing. The conclusion is borne out by the observed phenomenon of block comminution in specimens initially recrystallized at high temperature. The character of substructure variation is determined by the conditions of both mixture preparation and hot pressing, and also by the heat treatment history of the powder. Powder mixtures prepared by vibratory milling have a very fine particle size, but nevertheless the distribution of oxide inclusions in them is uneven and, consequently, the resultant strengthening effect is small.Translated from Poroshkovaya Metallurgiya, No. 6 (126), pp. 29–32, June, 1973.  相似文献   

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It was studied 203 strains of NAG vibrios and 71 strains of different enterobacteria for the ability to produce neuraminidase. The most frequent neuraminidase producers were found among the strains isolated from humans (99 strain of 131). There was no correlation between neuraminidase production and other properties of the vibrios. The examined strains of the family Enterobacteriaceae did not produce the enzyme.  相似文献   

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The contents of armillarin and melleolid in different stages of development of Armillaria mellea were determined by means of HPLC. The results indicated that the content of armillarin was 0.0085% in mycelia 0.54 mg/L in fermenting liquor, 0.002% in fruit-body, 0.0008% in rhizomorph; melleolid 0.0002% in mycelia 0.0011% in fruit-body and 0.0011% in rhizomorph.  相似文献   

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Ss "reorganize the material so that the recalls differ in sequential properties from those of the original list." When categorized subgroups of words are presented in a random order and Ss in recall put together or cluster such categorized items, the procedure is called category clustering. Associative clustering occurs "when in their recalls the Ss put together in sequence the stimuli and their responses which had been separated at list presentation" (e.g., stimuli such as table and mountain and responses such as chair and hill were presented in random order in word lists to Ss for recall). Results of several investigations are discussed. "When sufficiently prominent, experimenter-provided associational and categorical relations between members of a word pair provide a basis for clustering in free recall alternative to the bases—associational or otherwise—the S will use to effect subjective organization or idiosyncratic pairing. Free recall can tell us something of the way verbal organization is set up but we are largely in the dark as to how this organization acts to bring related items together whatever the basis of their relationship." 14 figures. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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Some structural properties of Jung's typology were investigated, using a self-report inventory, the Myers-Briggs Type Indicator. The findings were that: (a) the type classifications had moderate stability; (b) indicator score distributions were not bimodal; (c) with one exception, the regressions of other variables on indicator scales did not change at the zero point of the indicator scales; (d) the indicator scales did not interact; (e) the indicator scales did not moderate the regressions of other variables on one another; and (f) type indeterminacy was unrelated to ineffective behavior and maladjustment. It was concluded that these results offer little support for any of the structural properties attributed to the typology. (33 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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Item lists the officers, boards and members, committees and members, and representatives of the American Psychological Association for 1968-1969. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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Lists the officers, boards, committees, and representatives of the American Psychological Association for 1958-1959. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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Provides a list of Officers, Boards, Committees and Representatives of the American Psychological Association. Affiliation and contact information is provided for selected individuals. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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Cross-cultural psychologists assume that core cultural values define to a large extent what a culture is. Typically, core values are identified through an actual self-importance approach, in which core values are those that members of the culture as a group strongly endorse. In this article, the authors propose a perceived cultural importance approach to identifying core values, in which core values are values that members of the culture as a group generally believe to be important in the culture. In 5 studies, the authors examine the utility of the perceived cultural importance approach. Results consistently showed that, compared with values of high actual self-importance, values of high perceived cultural importance play a more important role in cultural identification. These findings have important implications for conceptualizing and measuring cultures. (PsycINFO Database Record (c) 2011 APA, all rights reserved)  相似文献   

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In Vibrio vulnificus, virulence for eels is associated with serovar E strains. In this study, we investigated some biological properties of purified lipopolysaccharides (LPSs) from serovar E and non-serovar E strains. Purified LPSs retained their O-polysaccharidic side chains and did not show any differences that could be related to host specificity, except for serological differences.  相似文献   

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The antimicrobial potential of eight phenolic compounds isolated from olive cake was tested against the growth of Escherichia coli, Klebsiella pneumoniae, Bacillus cereus, Aspergillus flavus and Aspergillus parasiticus. The phenolic compounds included p-hydroxy benzoic, vanillic, caffeic, protocatechuic, syringic, and p-coumaric acids, oleuropein and quercetin. Caffeic and protocatechuic acids (0.3 mg/ml) inhibited the growth of E. coli and K. pneumoniae. The same compounds apart from syringic acid (0.5 mg/ml) completely inhibited the growth of B. cereus. Oleuropein, and p-hydroxy benzoic, vanillic and p-coumaric acids (0.4 mg/ml) completely inhibited the growth of E. coli, K. pneumoniae and B. cereus. Vanillic and caffeic acids (0.2 mg/ml) completely inhibited the growth and aflatoxin production by both A. flavus and A. parasiticus, whereas the complete inhibition of the moulds was attained with 0.3 mg/ml p-hydroxy benzoic, protocatechuic, syringic, and p-coumaric acids and quercetin.  相似文献   

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Cross-cultural research is dominated by the use of values despite their mixed empirical support and their limited theoretical scope. This article expands the dominant paradigm in cross-cultural research by developing a theory of cultural tightness-looseness (the strength of social norms and the degree of sanctioning within societies) and by advancing a multilevel research agenda for future research. Through an exploration of the top-down, bottom-up, and moderating impact that cultural tightness-looseness has on individuals and organizations, as well as on variance at multiple levels of analysis, the theory provides a new and complementary perspective to the values approach. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

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Conclusions All the methods examined enable ultrafine materials to be produced, generally characterized by a crystallite size of 100–200 Å. X-ray diffraction spectra indicate that such systems have atomic crystal structures with short-range order and a limited long-range order extending over distances commensurable with the size of coherent-scattering regions.Translated from Poroshkovaya Metallurgiya, No. 9 (225), pp. 10–14, September, 1981.  相似文献   

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