Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Results by year

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

Year Number of Results
1786 2
1788 1
1790 1
1792 1
1795 1
1796 2
1797 1
1798 2
1799 6
1800 1
1801 2
1802 5
1803 1
1804 1
1805 4
1806 1
1808 4
1809 2
1810 4
1811 5
1812 2
1813 1
1814 2
1815 1
1816 3
1818 5
1819 3
1821 1
1822 2
1823 2
1826 1
1827 4
1828 2
1829 1
1830 2
1835 1
1839 1
1840 1
1841 2
1842 2
1843 1
1844 4
1845 3
1846 3
1847 2
1848 4
1849 1
1850 4
1851 3
1852 3
1853 8
1854 1
1855 1
1856 4
1857 2
1858 2
1859 3
1860 2
1863 1
1864 2
1867 2
1868 1
1869 1
1870 2
1871 1
1872 2
1874 1
1875 2
1877 1
1879 2
1881 3
1882 1
1883 4
1884 7
1885 2
1887 3
1888 1
1890 1
1893 1
1897 2
1898 1
1903 1
1907 2
1915 2
1920 1
1924 1
1928 2
1930 1
1931 2
1933 1
1938 1
1941 1
1944 1
1945 2
1946 5
1947 3
1948 5
1949 7
1950 6
1951 5
1952 1
1953 4
1954 5
1955 1
1956 4
1957 4
1958 4
1959 1
1960 4
1961 5
1962 2
1963 3
1964 8
1965 9
1966 6
1967 8
1968 10
1969 6
1970 10
1971 7
1972 6
1973 18
1974 13
1975 37
1976 42
1977 26
1978 43
1979 37
1980 44
1981 33
1982 41
1983 44
1984 64
1985 83
1986 80
1987 81
1988 92
1989 113
1990 121
1991 124
1992 157
1993 159
1994 188
1995 195
1996 189
1997 162
1998 190
1999 243
2000 306
2001 323
2002 367
2003 360
2004 397
2005 452
2006 508
2007 517
2008 545
2009 555
2010 600
2011 698
2012 788
2013 815
2014 912
2015 928
2016 1100
2017 1182
2018 1291
2019 1333
2020 1458
2021 1721
2022 1768
2023 1764
2024 767

Text availability

Article attribute

Article type

Publication date

Search Results

22,395 results

Results by year

Filters applied: . Clear all
Page 1
New futures for cosmological models.
Fernández-Jambrina L, Lazkoz R. Fernández-Jambrina L, et al. Philos Trans A Math Phys Eng Sci. 2022 May 2;380(2222):20210333. doi: 10.1098/rsta.2021.0333. Epub 2022 Mar 14. Philos Trans A Math Phys Eng Sci. 2022. PMID: 35282694 Review.
In this paper, we review the chances that may await our universe. In particular, there are new possible singular fates (sudden singularities, big rip, etc.), but there also other evolutions that cannot be considered as singular. In addition to this, some of t …
In this paper, we review the chances that may await our universe. In particular, there are new possible singular fates (sudden sin
The case of the vanishing wavefunction.
Warrier N. Warrier N. Stud Hist Philos Sci. 2022 Dec;96:135-140. doi: 10.1016/j.shpsa.2022.09.015. Epub 2022 Oct 21. Stud Hist Philos Sci. 2022. PMID: 36274414
Spacetime singularities are often held to be pathologies which need to be resolved, and researchers working on the foundations of physics often pin their hopes on the elusive quantum theory of gravity to offer a way to resolve singularities. ...The criterion, when a …
Spacetime singularities are often held to be pathologies which need to be resolved, and researchers working on the foundations of phy …
A critical appraisal of the singularity theorems.
Senovilla JMM. Senovilla JMM. Philos Trans A Math Phys Eng Sci. 2022 May 2;380(2222):20210174. doi: 10.1098/rsta.2021.0174. Epub 2022 Mar 14. Philos Trans A Math Phys Eng Sci. 2022. PMID: 35282689 Review.
The 2020 Nobel prize in Physics has revived the interest in the singularity theorems and, in particular, in the Penrose theorem published in 1965. ...In particular, a discussion of space-time extensions in relation to the theorems is provided. The nature of the singular
The 2020 Nobel prize in Physics has revived the interest in the singularity theorems and, in particular, in the Penrose theorem publi …
Design of Lissajous beams.
Miao W, Gbur G. Miao W, et al. Opt Lett. 2022 Jan 15;47(2):297-300. doi: 10.1364/OL.448609. Opt Lett. 2022. PMID: 35030591
Lissajous singularities were observed both theoretically and experimentally almost two decades ago, but their intrinsic properties and potential applications have remained relatively unexplored. In this Letter, we describe how to design a class of beams containing a single …
Lissajous singularities were observed both theoretically and experimentally almost two decades ago, but their intrinsic properties an …
Lissajous singularities.
Kessler DA, Freund I. Kessler DA, et al. Opt Lett. 2003 Jan 15;28(2):111-3. doi: 10.1364/ol.28.000111. Opt Lett. 2003. PMID: 12656501
Coherent optical Lissajous states are easily created by nonlinear processes such as second-harmonic generation (SHG). Singular properties of such states are discussed and illustrated theoretically with non-phase-matched SHG of an ellipse field containing a C point....
Coherent optical Lissajous states are easily created by nonlinear processes such as second-harmonic generation (SHG). Singular proper …
Higher-order singularities in phase-tracked electromechanical oscillators.
Zhou X, Ren X, Xiao D, Zhang J, Huang R, Li Z, Sun X, Wu X, Qiu CW, Nori F, Jing H. Zhou X, et al. Nat Commun. 2023 Dec 1;14(1):7944. doi: 10.1038/s41467-023-43708-y. Nat Commun. 2023. PMID: 38040766 Free PMC article.
Singularities ubiquitously exist in different fields and play a pivotal role in probing the fundamental laws of physics and developing highly sensitive sensors. ...By manipulating the PhT singularities in an electrostatically tunable micromechanical system, we demon
Singularities ubiquitously exist in different fields and play a pivotal role in probing the fundamental laws of physics and developin
Thermal Fluctuations of Singular Bar-Joint Mechanisms.
Mannattil M, Schwarz JM, Santangelo CD. Mannattil M, et al. Phys Rev Lett. 2022 May 20;128(20):208005. doi: 10.1103/PhysRevLett.128.208005. Phys Rev Lett. 2022. PMID: 35657887
When the constraints in a mechanism cease to be linearly independent, singularities can appear in its shape space, which is the part of its configuration space after discarding rigid motions. We show that the free-energy landscape of a mechanism at low temperatures is domi …
When the constraints in a mechanism cease to be linearly independent, singularities can appear in its shape space, which is the part …
Singularities from Entropy.
Bousso R, Shahbazi-Moghaddam A. Bousso R, et al. Phys Rev Lett. 2022 Jun 10;128(23):231301. doi: 10.1103/PhysRevLett.128.231301. Phys Rev Lett. 2022. PMID: 35749179
Assuming the Bousso bound, we prove a singularity theorem: if the light rays entering a hyperentropic region contract, then at least one light ray must be incomplete. ...In an asymptotically de Sitter spacetime, for example, a big bang singularity can be diagnosed f …
Assuming the Bousso bound, we prove a singularity theorem: if the light rays entering a hyperentropic region contract, then at least …
Metasurface for Engineering Superimposed Ince-Gaussian Beams.
Ahmed H, Ansari MA, Paterson L, Li J, Chen X. Ahmed H, et al. Adv Mater. 2024 Feb 14:e2312853. doi: 10.1002/adma.202312853. Online ahead of print. Adv Mater. 2024. PMID: 38353164
The superposition of IGBs can generate complicated structured beams with multiple phase and polarization singularities. A metasurface approach is proposed to realizing various superpositions of IGBs without relying on a complicated optical setup. By superimposing IGBs with …
The superposition of IGBs can generate complicated structured beams with multiple phase and polarization singularities. A metasurface …
A Model of Interacting Navier-Stokes Singularities.
Faller H, Fery L, Geneste D, Dubrulle B. Faller H, et al. Entropy (Basel). 2022 Jun 29;24(7):897. doi: 10.3390/e24070897. Entropy (Basel). 2022. PMID: 35885120 Free PMC article.
We introduce a model of interacting singularities of Navier-Stokes equations, named pincons. They follow non-equilibrium dynamics, obtained by the condition that the velocity field around these singularities obeys locally Navier-Stokes equations. ...
We introduce a model of interacting singularities of Navier-Stokes equations, named pincons. They follow non-equilibrium dynamics, ob …
22,395 results
You have reached the last available page of results. Please see the User Guide for more information.