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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1896 1
1898 2
1899 2
1905 1
1908 1
1909 1
1911 4
1912 1
1913 1
1914 1
1915 3
1916 2
1917 1
1918 2
1919 2
1920 5
1921 4
1922 1
1923 2
1924 4
1925 5
1926 4
1927 2
1928 4
1929 3
1930 5
1931 3
1932 4
1933 5
1934 3
1935 2
1936 4
1937 1
1939 7
1940 2
1941 2
1942 3
1943 3
1944 2
1945 1
1946 1
1947 4
1949 2
1950 3
1951 4
1952 4
1953 7
1954 5
1955 5
1956 9
1957 8
1958 9
1959 7
1960 10
1961 11
1962 8
1963 27
1964 18
1965 30
1966 29
1967 48
1968 35
1969 71
1970 73
1971 80
1972 90
1973 75
1974 94
1975 505
1976 534
1977 464
1978 459
1979 579
1980 611
1981 682
1982 748
1983 908
1984 1073
1985 1097
1986 1211
1987 1318
1988 1438
1989 1674
1990 1887
1991 1995
1992 2107
1993 2228
1994 2484
1995 2672
1996 2879
1997 3020
1998 3238
1999 3544
2000 4052
2001 4162
2002 4516
2003 4812
2004 5569
2005 6169
2006 6952
2007 7648
2008 7972
2009 8625
2010 9824
2011 10964
2012 12157
2013 13142
2014 13823
2015 14918
2016 15743
2017 16593
2018 17473
2019 18749
2020 21894
2021 24298
2022 23834
2023 23092
2024 24065
2025 31000
2026 7055

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360,110 results

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Page 1
The magical number 4 in short-term memory: a reconsideration of mental storage capacity.
Cowan N. Cowan N. Behav Brain Sci. 2001 Feb;24(1):87-114; discussion 114-85. doi: 10.1017/s0140525x01003922. Behav Brain Sci. 2001. PMID: 11515286
A single, central capacity limit averaging about four chunks is implicated along with other, noncapacity-limited sources. The pure STM capacity limit expressed in chunks is distinguished from compound STM limits obtained when the number of separ …
A single, central capacity limit averaging about four chunks is implicated along with other, noncapacity-limited sources. The …
Is the approximate number system capacity limited? Extended display duration does not increase the limits of linear number estimation.
Durgin FH, Portley M. Durgin FH, et al. J Exp Psychol Hum Percept Perform. 2023 Apr;49(4):483-495. doi: 10.1037/xhp0001106. Epub 2023 Apr 13. J Exp Psychol Hum Percept Perform. 2023. PMID: 37053402 Review.
The approximate number system (ANS) is widely regarded as handling numbers beyond the subitizing range. ...Implications for studies of number comparison and math performance are discussed. (PsycInfo Database Record (c) 2023 APA, all rights reserved)....
The approximate number system (ANS) is widely regarded as handling numbers beyond the subitizing range. ...Implications for st …
Multi-pass microscopy.
Juffmann T, Klopfer BB, Frankort TLI, Haslinger P, Kasevich MA. Juffmann T, et al. Nat Commun. 2016 Sep 27;7:12858. doi: 10.1038/ncomms12858. Nat Commun. 2016. PMID: 27670525 Free PMC article.
An improved measurement accuracy at the Heisenberg limit can be achieved exploiting quantum correlations. If sample damage is the limiting resource, an equivalent limit can be reached by passing photons through a specimen multiple times sequentially. Here we …
An improved measurement accuracy at the Heisenberg limit can be achieved exploiting quantum correlations. If sample damage is the …
Limited utility of number needed to treat and the polarity index for bipolar disorder to characterize treatment response.
Alphs L, Berwaerts J, Turkoz I. Alphs L, et al. Eur Neuropsychopharmacol. 2013 Nov;23(11):1597-9. doi: 10.1016/j.euroneuro.2012.12.006. Epub 2013 Jan 22. Eur Neuropsychopharmacol. 2013. PMID: 23347971 Free article.
The medical community increasingly supports the use of simplifying constructs or ratios to facilitate incorporation of evidence-based medicine into clinical practice such as number needed to treat (NNT) and polarity index (PI). Clinicians and teachers find them to be an ap …
The medical community increasingly supports the use of simplifying constructs or ratios to facilitate incorporation of evidence-based medici …
Three-dimensional ultrasound imaging.
Fenster A, Downey DB. Fenster A, et al. Annu Rev Biomed Eng. 2000;2:457-75. doi: 10.1146/annurev.bioeng.2.1.457. Annu Rev Biomed Eng. 2000. PMID: 11701520 Review.
Two-dimensional viewing of three-dimensional anatomy by conventional ultrasound limits our ability to quantify and visualize a number of diseases and is partly responsible for the reported variability in diagnosis. ...These developments as well as future trends are …
Two-dimensional viewing of three-dimensional anatomy by conventional ultrasound limits our ability to quantify and visualize a num …
Gene Therapy for Hemoglobinopathies.
Cavazzana M, Mavilio F. Cavazzana M, et al. Hum Gene Ther. 2018 Oct;29(10):1106-1113. doi: 10.1089/hum.2018.122. Hum Gene Ther. 2018. PMID: 30200783 Free PMC article. Review.
Preclinical and clinical studies have shown the safety and efficacy of this therapeutic approach, currently based on lentiviral vectors to transfer a beta-globin gene under the transcriptional control of regulatory elements of the beta-globin locus. Nevertheless, a number …
Preclinical and clinical studies have shown the safety and efficacy of this therapeutic approach, currently based on lentiviral vectors to t …
Reproductive output of old males is limited by seminal fluid, not sperm number.
Sanghvi K, Shandilya S, Brown A, Todorova B, Jahn M, Gascoigne SJL, Camilleri TL, Pizzari T, Sepil I. Sanghvi K, et al. Evol Lett. 2025 Jan 6;9(2):282-291. doi: 10.1093/evlett/qrae071. eCollection 2025 Apr. Evol Lett. 2025. PMID: 40191416 Free PMC article.
However, this pattern is not driven by sperm limitation: old males have more sperm and transfer similar numbers to females, compared to young males. ...Our findings highlight that seminal fluid, rather than sperm number, limits reproductive success in …
However, this pattern is not driven by sperm limitation: old males have more sperm and transfer similar numbers to females, co …
The limits of the attachment network.
Bakermans-Kranenburg MJ. Bakermans-Kranenburg MJ. New Dir Child Adolesc Dev. 2021 Nov;2021(180):117-124. doi: 10.1002/cad.20432. Epub 2021 Sep 7. New Dir Child Adolesc Dev. 2021. PMID: 34494696 Free PMC article. Review.
From the beginning, theories of attachment and caregiving have given rise to questions about minimum and maximum numbers of attachment figures. The child's tendency to direct attachment behavior to a specific figure rather than to whoever is nearby has led to the idea of m …
From the beginning, theories of attachment and caregiving have given rise to questions about minimum and maximum numbers of attachmen …
Bridging the neural gap.
Weber RV, Mackinnon SE. Weber RV, et al. Clin Plast Surg. 2005 Oct;32(4):605-16, viii. doi: 10.1016/j.cps.2005.05.003. Clin Plast Surg. 2005. PMID: 16139631 Review.
A major limitation to overall success in peripheral nerve surgery is time for regeneration. Although one can help speed up the regenerative process to some extent, success is hindered by issues such as number of coaptation sites, supply of donor nerves, and the l …
A major limitation to overall success in peripheral nerve surgery is time for regeneration. Although one can help speed up the regene …
Pushing the Envelope for Donor Lungs.
Abdelnour-Berchtold E, Ali A, Cypel M, Keshavjee S. Abdelnour-Berchtold E, et al. Semin Respir Crit Care Med. 2021 Jun;42(3):357-367. doi: 10.1055/s-0041-1729859. Epub 2021 May 24. Semin Respir Crit Care Med. 2021. PMID: 34030199 Review.
The shortage of organ donors remains the major limiting factor in lung transplant, with the number of patients on the waiting list largely exceeding the number of available organ donors. ...Advanced age, smoking history, positive serologies, and size mismatch …
The shortage of organ donors remains the major limiting factor in lung transplant, with the number of patients on the waiting …
360,110 results
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