全文获取类型
收费全文 | 2337篇 |
免费 | 106篇 |
专业分类
2443篇 |
出版年
2021年 | 19篇 |
2020年 | 37篇 |
2019年 | 36篇 |
2018年 | 60篇 |
2017年 | 61篇 |
2016年 | 55篇 |
2015年 | 50篇 |
2014年 | 51篇 |
2013年 | 242篇 |
2012年 | 81篇 |
2011年 | 95篇 |
2010年 | 54篇 |
2009年 | 65篇 |
2008年 | 103篇 |
2007年 | 85篇 |
2006年 | 91篇 |
2005年 | 74篇 |
2004年 | 77篇 |
2003年 | 54篇 |
2002年 | 69篇 |
2001年 | 42篇 |
2000年 | 57篇 |
1999年 | 51篇 |
1998年 | 31篇 |
1997年 | 25篇 |
1996年 | 27篇 |
1994年 | 17篇 |
1993年 | 24篇 |
1992年 | 40篇 |
1991年 | 28篇 |
1990年 | 36篇 |
1989年 | 25篇 |
1988年 | 37篇 |
1987年 | 34篇 |
1986年 | 19篇 |
1985年 | 29篇 |
1984年 | 21篇 |
1983年 | 20篇 |
1980年 | 17篇 |
1979年 | 35篇 |
1977年 | 17篇 |
1976年 | 28篇 |
1975年 | 22篇 |
1974年 | 20篇 |
1973年 | 20篇 |
1972年 | 20篇 |
1971年 | 25篇 |
1968年 | 28篇 |
1967年 | 19篇 |
1966年 | 20篇 |
排序方式: 共有2443条查询结果,搜索用时 0 毫秒
51.
52.
53.
The issue of multiple memory systems is explored. Young and older adults (mean ages = 20 and 71, respectively) named pictures and were tested immediately, 1, 7, or 21 days later. Episodic memory (recognition) for pictures was significantly lower in older relative to young adults and declined systematically across all retention intervals in both age groups. In contrast, procedural memory (repetition priming in picture naming) revealed no reliable age differences. In both age groups, priming declined within the first 24 hr, but unlike recognition, there was no further decrement from 1 to 21 days. There were also within-subject dissociations: The magnitude of priming was equivalent for remembered and forgotten items, and the relation between recognition and priming across intervals was nonmonotic, revealing a reversed association. The findings were interpreted within a multiple-memory-systems framework. 相似文献
54.
Duane Brown 《Journal of counseling and development : JCD》1993,72(2):139-143
The development of consultation skills lags far behind the development of counseling skills in most counselor education programs. Some of the reasons why consultation training is not emphasized are examined, and some remedies are suggested. 相似文献
55.
56.
57.
Sharon E. Robinson Sari L. Roth Lynn L. Brown 《Journal of applied social psychology》1993,23(3):244-251
In an attempt to account for morale and job satisfaction among 314 nurses, this study investigated the influence of work-related and interpersonal variables. Morale on the unit was directly related to supervisor support, co-worker relationships, and work recognition. Personal morale was accounted for by recognition, physical environment, the job itself, and pay. Job satisfaction was predicted by personal morale, work commitment, job clarity, work pressure, and innovation. Suggestions for improving nurse morale and job satisfaction are made. 相似文献
58.
James Robert Brown 《国际科学哲学研究》1990,4(2):117-130
Proofs and Refutations is Lakatos's masterpiece. This article investigates some of its central themes, in particular: the nature of proofs ('Proofs do not prove, they improve'); the nature of definitions (real, not nominal); and the consequences of all this for ontology (platonism vs Popper's World Three). 相似文献
59.
Summary When a line (the pointer) is collinear with a dot, the addition of a second line (the induction line) contiguous with the dot or near it may cause the pointer to appear to be collinear with a point further along or nearer to the induction line. The geometrical relations upon which this effect, which we call attraction-caused misalignment, depends have been studied with the Obonai and Wundt-Loeb (Hotopf, 1981; Hotopf & Brown, 1988) figures. Drawing upon the studies of misalignment in the Morinaga figure carried out by Restle (1976), Day, Bellamy, and Norman (1983), and Day and Kasperczyk (1985), as well as upon two new experiments, we show that misalignment in the Morinaga figure is also attraction-caused misalignment, as previously defined. We conclude with a discussion of a number of theories that aim at accounting for attraction misalignment. 相似文献
60.
Joan M Sinnott Charles H. Brown Waseem T. Malik Regina A. Kressley 《Attention, perception & psychophysics》1997,59(8):1214-1224
Multidimensional scaling (MDS) was used to compare perceptual maps for 10 synthetic English vowels in humans and Old World monkeys (Macaca fuscata andCercopithecus albogularis). Subjects discriminated among the vowels using a repeating background procedure, and reaction times were submitted to an MDS analysis to derive measures of perceived similarity. The dimensions that emerged related to the frequencies of the first(F1), second(F2), and third(F3) formants. Human data indicated a good match to previous MDS studies using rating procedures or confusion matrices: The dominant dimension mapped onto vowelF2, the phonetically most important formant, and the second and third dimensions mapped ontoF1 andF3, respectively.For monkeys, equal weightings occurred forF1 andF2, andF3 was not clearly represented. Monkey sensitivity to the formants appeared to relate to formant amplitudes. If monkeys are giving an accurate representation of the psychoacoustic relations among the formants, then our human results suggest that species-specific mechanisms, reflecting the salience of the phonetic feature of advancement, may contribute to vowel coding in humans. 相似文献