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Pigeons were exposed to self-control procedures that involved illumination of light-emitting diodes (LEDs) as a form of token reinforcement. In a discrete-trials arrangement, subjects chose between one and three LEDs; each LED was exchangeable for 2-s access to food during distinct posttrial exchange periods. In Experiment 1, subjects generally preferred the immediate presentation of a single LED over the delayed presentation of three LEDs, but differences in the delay to the exchange period between the two options prevented a clear assessment of the relative influence of LED delay and exchange-period delay as determinants of choice. In Experiment 2, in which delays to the exchange period from either alternative were equal in most conditions, all subjects preferred the delayed three LEDs more often than in Experiment-1. In Experiment 3, subjects preferred the option that resulted in a greater amount of food more often if the choices also produced LEDs than if they did not. In Experiment 4, preference for the delayed three LEDs was obtained when delays to the exchange period were equal, but reversed in favor of an immediate single LED when the latter choice also resulted in quicker access to exchange periods. The overall pattern of results suggests that (a) delay to the exchange period is a more critical determinant of choice than is delay to token presentation; (b) tokens may function as conditioned reinforcers, although their discriminative properties may be responsible for the self-control that occurs under token reinforcer arrangements; and (c) previously reported differences in the self-control choices of humans and pigeons may have resulted at least in part from the procedural conventions of using token reinforcers with human subjects and food reinforcers with pigeon subjects. 相似文献
23.
Body type preferences, body characteristics associated with body attractiveness, and personal characteristics associated with unattractive body types (e.g., obese bodies) were examined in African American and Anglo American female and male respondents. African American males preferred larger body types for females, and associated more favorable and fewer unfavorable characteristics with obese females than did Anglo American males. Females of both races preferred a slightly thin body type for males, although African American females associated fewer unfavorable characteristics with obese males than did Anglo American females. Difference between the races in body characteristics associated with attractiveness suggest race-specific prototypes of body attractiveness that correspond to physical differences between the races. Race-specific standards of attractiveness within cultures are discussed. 相似文献
24.
The Awakening of the West: the encounter of Buddhism and Western culture Stephen Batchelor (Foreword by The Dalai Lama), 1994 London, Aquarian xvi + 416 pp., £12.99, US $20.00
A Comparative Study of Early Buddhism and Kantian Philosophy S. G. M. Weerasinghe, 1993 Colombo, S. Godage and Brothers xxii+ 104 pp., pb Rs. 150.00; US$7.50
New Light on Early Buddhism Balkrishna Govind Gokhale, 1994 London, Sangam x + 208 pp., hb £22.95
Vedic Hermeneutics K. Satchidananda Murty, 1993 New Delhi, Shri Lai Bahadur Shastri Rashtriya Sanskrit Vidyapeetha, in association with Motilal Banarsidass xxvi + 106 pp., hb Rs.150 相似文献
25.
A series of studies was undertaken to determine possible factors contributing to low predictive utility for Felt Figure Replacement Technique (FFRT) scores from normal, adult males. It was first postulated that normal adult males, compared to normal adult females, are less sensitive to social cues present in the FFRT task. Twenty-six undergraduate males and the same number of undergraduate females were asked to replace both a) department store manikins, thought to be less abstract, and then b) felt figures. While task differences were obtained, these were not dependent on gender, nor did any overall gender differences occur for three types of replacement error. The second study involved 31 college males and 33 college females replacing both felt figures and a male and female confederate. It was assumed that differential attention to social cues would be more visible in this comparison. The general results were identical to the first study. 相似文献
26.
A field experiment was designed to examine the role of gender trait assumptions in occupational treatment discrimination. Professional personnel consultants evaluated male or female employees who were physically attractive or unattractive and masculine, feminine, or androgynous. Consultants made decisions about promotion, opportunity for special training, delegation of work assignments, and a child care leave of absence request in masculine, feminine, and sex-neutral occupations. Decisions about career development were strongly influenced by gender trait information, rather than by gender or attractiveness. In contrast, females were more likely than males to be granted a child care leave without pay, regardless of sex role. The results supported the assumption that the congruence between gender traits and the occupational requirements mediates occupational sex discrimination. Only for decisions involving competing role demands stemming from faily circumstances was there evidence that beliefs about appropriate roles for the sexes mediate discrimination. Implications of these findings are discussed in terms of new approaches for reducing sex discrimination in the treatment of employees. 相似文献
27.
D J Jackson 《Psychological reports》1991,68(1):323-332
Edith Jackson, recipient of one of Sigmund Freud's coveted rings, served him well as an ambassador for psychoanalysis. As a child psychiatrist for 25 years at the Yale School of Medicine, she developed the rooming-in plan which allowed parents and newborns to be together from birth. With Anna Freud and Dorothy Burlingham, she opened the Jackson Nursery, a precursor of American daycare centers. Among the most important people in developing the field of child psychology, Edith was one of the early psychologists who recognized the importance of satisfying the emotional as well as the physical needs of the newborn. 相似文献
28.
Philip W. Jackson 《Studies in Philosophy and Education》1991,10(4):337-344
This study seeks to examine Umberto Eco's views of the key ideas in John Dewey's Art as Experience. Eco's proferred suggestion of transactional psychology as a corrective to Dewey's views is criticized as a misreading of Dewey's position. 相似文献
29.
30.
Duane Lundervold Lee Young Gordon Bourland Thomas Jackson 《Behavioral Interventions》1991,6(2):97-106
Internal consistency of two forms of the Geriatric Treatment Acceptability Survey (GTAS) and the Attitudes toward Behavior Analysis Scale (ABAS), a global measure of attitudes toward behavior modification, was evaluated. Alpha coefficients regarding treatment acceptability ratings for GTAS Form H were: (a) wandering 0.94; (b) hoarding 0.96; (c) disruptive behavior 0.92; (d) property destruction 0.95; and (e) aggression 0.94. Internal consistency for Form NH was: (a) wandering 0.96; (b) hoarding 0.97; (c) disruptive behavior 0.96; (d) property destruction 0.97; and (e) aggression 0.76. Internal consistency of the ABAS resulted in alpha coefficients of 0.90 (total score); 0.87 (ethics and humaneness); and 0.76 (use). These measures appear useful in assessing older adults, nursing home patients' and geriatric nursing staffs' global and specific attitudes regarding the use of behavioral treatments with older adults. Further research is needed to establish psychometric constructs assessed by the instruments and sensitivity to detecting change in attitudes based on educational or clinical interventions. 相似文献