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
1978 1
1979 1
1981 2
1985 1
1986 2
1988 1
1989 1
1991 1
1992 1
1993 1
1994 2
1995 3
1996 1
1997 3
1998 1
1999 2
2000 1
2001 10
2002 9
2003 6
2004 9
2005 8
2006 10
2007 7
2008 6
2009 12
2010 12
2011 19
2012 16
2013 21
2014 33
2015 22
2016 24
2017 43
2018 52
2019 49
2020 67
2021 87
2022 109
2023 141
2024 41

Text availability

Article attribute

Article type

Publication date

Search Results

807 results

Results by year

Filters applied: . Clear all
Page 1
Demystifying Monarch Butterfly Migration.
Reppert SM, de Roode JC. Reppert SM, et al. Curr Biol. 2018 Sep 10;28(17):R1009-R1022. doi: 10.1016/j.cub.2018.02.067. Curr Biol. 2018. PMID: 30205052 Free article. Review.
Every fall, millions of North American monarch butterflies undergo a stunning long-distance migration to reach their overwintering grounds in Mexico. Migration allows the butterflies to escape freezing temperatures and dying host plants, and reduces infections with a virul …
Every fall, millions of North American monarch butterflies undergo a stunning long-distance migration to reach their overwintering ground …
Space-Air-Ground Integrated 6G Wireless Communication Networks: A Review of Antenna Technologies and Application Scenarios.
Dicandia FA, Fonseca NJG, Bacco M, Mugnaini S, Genovesi S. Dicandia FA, et al. Sensors (Basel). 2022 Apr 20;22(9):3136. doi: 10.3390/s22093136. Sensors (Basel). 2022. PMID: 35590826 Free PMC article. Review.
The available technologies and the key research directions for achieving global wireless coverage by considering all these layers are thoroughly discussed. Emphasis is placed on the available antenna systems in satellite, airborne and ground layers by highlighting s …
The available technologies and the key research directions for achieving global wireless coverage by considering all these layers are thorou …
Influence of electromagnetic fields on the circadian rhythm: Implications for human health and disease.
Martel J, Chang SH, Chevalier G, Ojcius DM, Young JD. Martel J, et al. Biomed J. 2023 Feb;46(1):48-59. doi: 10.1016/j.bj.2023.01.003. Epub 2023 Jan 19. Biomed J. 2023. PMID: 36681118 Free PMC article. Review.
Factors such as electromagnetic pollution from wireless devices, base antennas and low orbit internet satellites, shielding by non-conductive materials used in shoes and buildings, and local geomagnetic anomalies may also affect sensing of the earth's EMFs by the human bod …
Factors such as electromagnetic pollution from wireless devices, base antennas and low orbit internet satellites, shielding by non-co …
Ultrawideband Antennas: Growth and Evolution.
Kumar OP, Kumar P, Ali T, Kumar P, Vincent S. Kumar OP, et al. Micromachines (Basel). 2021 Dec 30;13(1):60. doi: 10.3390/mi13010060. Micromachines (Basel). 2021. PMID: 35056225 Free PMC article. Review.
Narrowband antennas fail to radiate short pulses of nano- or picosecond length over the broader band of frequencies. ...Finally, the need of reconfigurable UWB notch antennas is discussed in the next section. Here various insight to the design of frequency reconfigu …
Narrowband antennas fail to radiate short pulses of nano- or picosecond length over the broader band of frequencies. ...Finally, the …
Terahertz antenna with tunable filtering.
Ali MF, Jawed Z, Raj V, Varshney G. Ali MF, et al. Appl Opt. 2023 Jan 10;62(2):284-290. doi: 10.1364/AO.475609. Appl Opt. 2023. PMID: 36630226
A terahertz (THz) antenna with tunable filtering is designed and numerically studied. ...Furthermore, the antenna can provide radiation efficiency of more than 90% and gain with a peak value of 6.6 dBi in the passband....
A terahertz (THz) antenna with tunable filtering is designed and numerically studied. ...Furthermore, the antenna can provide …
Seed choice in ground beetles is driven by surface-derived hydrocarbons.
Ali KA, Mori BA, Prager SM, Willenborg CJ. Ali KA, et al. Commun Biol. 2022 Jul 21;5(1):724. doi: 10.1038/s42003-022-03678-1. Commun Biol. 2022. PMID: 35864204 Free PMC article.
Ground beetles (Coleoptera: Carabidae) are among the most prevalent biological agents in temperate agroecosystems. ...These olfactory seed cues were essential for seed detection and discrimination processes to unfold. Disabling the olfactory appendages (antennae and …
Ground beetles (Coleoptera: Carabidae) are among the most prevalent biological agents in temperate agroecosystems. ...These olfactory …
Wideband Multiport Antennas.
Seyyedesfahlan M, Uzun A, K Skrivervik A, Tekin I. Seyyedesfahlan M, et al. Sensors (Basel). 2020 Dec 5;20(23):6960. doi: 10.3390/s20236960. Sensors (Basel). 2020. PMID: 33291426 Free PMC article.
In this paper, a wideband four port 2-6 GHz antenna is proposed. One-, two-, and four-port antennas are implemented and characterized between 2 and 6 GHz. The isolation between the ports is improved by connecting and optimizing the ground plane sections. The …
In this paper, a wideband four port 2-6 GHz antenna is proposed. One-, two-, and four-port antennas are implemented and charac …
Low-profile dual-band pixelated defected ground antenna for multistandard IoT devices.
Ullah MA, Keshavarz R, Abolhasan M, Lipman J, Shariati N. Ullah MA, et al. Sci Rep. 2022 Jul 7;12(1):11479. doi: 10.1038/s41598-022-15604-w. Sci Rep. 2022. PMID: 35798812 Free PMC article.
A low-profile dual-band pixelated defected ground antenna has been proposed at 3.5 GHz and 5.8 GHz bands. This work presents a flexible design guide for achieving single-band and dual-band antenna using pixelated defected ground (PDG). ...Compact an …
A low-profile dual-band pixelated defected ground antenna has been proposed at 3.5 GHz and 5.8 GHz bands. This work presents a …
Multiport Single Element Mimo Antenna Systems: A Review.
Sheriff N, Kamal Abdul Rahim S, Tariq Chattha H, Kim Geok T. Sheriff N, et al. Sensors (Basel). 2023 Jan 9;23(2):747. doi: 10.3390/s23020747. Sensors (Basel). 2023. PMID: 36679549 Free PMC article. Review.
Hence, designing a shared antenna system with multiple feed ports with equivalent or better performance characteristics as compared to the approach of multiple antennas with multiple feed ports is a promising advantage which can reduce the size and cost of manufactu …
Hence, designing a shared antenna system with multiple feed ports with equivalent or better performance characteristics as compared t …
Ground Penetrating Radar Algorithm to Sense the Depth of Blood Clot in Microwave Head Imaging.
Kandasamy L, J M. Kandasamy L, et al. Curr Med Imaging. 2022;18(8):845-854. doi: 10.2174/1573405618666220114150216. Curr Med Imaging. 2022. PMID: 35034599
METHODS: The electromagnetic waves are radiated, and backscattered reflections are received by Antipodal Vivaldi antenna with the parasitic patch (48 mm*21 mm). The received signals are converted to a planar 2D image, and the depth of the blood clot is identified from the …
METHODS: The electromagnetic waves are radiated, and backscattered reflections are received by Antipodal Vivaldi antenna with the par …
807 results