Results 41 to 50 of about 5,689,979 (299)

Cellular system information capacity change at higher frequencies due to propagation loss and system parameters [PDF]

, 2012
In this paper, mathematical analysis supported by computer simulation is used to study cellular system information capacity change due to propagation loss and system parameters (such as path loss exponent, shadowing and antenna height) at microwave ...
Anang, K.A., Bello, L., Eneh, T.I., Rapajic, P.B., Wu, Ruiheng   +4 more
core   +1 more source

Methods for the determination of adipose cell size in man and animals

Journal of Lipid Research, 1968
Four methods for the sizing of adipose cells in small samples of human or animal adipose tissue are compared. These methods depend on the preparation of cell suspensions by incubation of the tissue with collagenase or by prolonged fixation with osmium ...
Jules Hirsch, E. Gallian
doaj   +1 more source

Dominance of small-sized phytoplankton in a Mediterranean eutrophic coastal lagoon

Advances in Oceanography and Limnology, 2023
The predator-prey relationship is generally size-specific in the pelagic food webs. Phytoplankton cell size structure can provide information on the successive levels of consumers and therefore on the energy that can flow towards the top consumers. This
Silvia Pulina, Cecilia Teodora Satta, Bachisio Mario Padedda, Jacopo Culurgioni, Riccardo Diciotti, Nicola Fois, Antonella Lugliè   +6 more
doaj   +1 more source

WNT signaling regulates self-renewal and differentiation of prostate cancer cells with stem cell characteristics [PDF]

, 2009
Prostate cancer cells with stem cell characteristics were identified in human prostate cancer cell lines by their ability to form from single cells self-renewing prostaspheres in non-adherent cultures.
A de la Taille, A Glinka, A van Bokhoven, AA George, AP Verhagen, AS Waller, AT Collins, AT Collins, AT Collins, B Hoang, B Mao, BA Reynolds, C Lo Celso, C Wissmann, CC Carson 3rd, CI Truica, CL Hall, CL Hall, D Beier, D Bonnet, D Masiello, D Mizrak, DA Lawson, David M Prowse, DK Singla, DL Hudson, DL Hudson, DP Petrylak, DR Chesire, EM Hurt, G Dontu, G Gu, G Shaw, G Shaw, GD Richardson, GJ van Leenders, GL Shaw, GN Thalmann, H Clevers, H Li, H Zhu, HF English, Isabelle Bisson, IV Litvinov, IV Litvinov, J Miki, JA Schalken, JE Visvader, JM Adams, KD Bunting, KG Leong, L Adam, L Patrawala, L Patrawala, L Patrawala, L Ricci-Vitiani, L Vezzoni, L Xin, L Xin, LE Pascal, LG Wang, M Al-Hajj, M Locke, M Verras, MJ Linja, MS Chen, MS Wicha, N Uchida, PN Kelly, RI Bhatt, S Signoretti, S Weiss, S Zhou, SI Hwang, SK Singh, SM Janes, SV Shmelkov, T Hara, T Nikolova, T Reya, WJ Huss, Y Katoh, Y Lu   +82 more
core   +1 more source

Simulated Micro-, Lunar, and Martian Gravities on Earth—Effects on Escherichia coli Growth, Phenotype, and Sensitivity to Antibiotics

Life, 2022
Bacterial behavior has been studied under microgravity conditions, but very little is known about it under lunar and Martian gravitational regimes. An Earth-based approach was designed and implemented using inclined clinostats and an in-house-developed ...
Lily A. Allen, Amir H. Kalani, Frederico Estante, Aaron J. Rosengren, Louis Stodieck, David Klaus, Luis Zea   +6 more
doaj   +1 more source

A mechanistic first--passage time framework for bacterial cell-division timing

, 2015
How exponentially growing cells maintain size homeostasis is an important fundamental problem. Recent single-cell studies in prokaryotes have uncovered the adder principle, where cells on average, add a fixed size (volume) from birth to division ...
Ghusinga, Khem Raj, Singh, Abhyudai, Vargas-Garcia, Cesar A.   +2 more
core   +1 more source

Nanophytoplankton and microphytoplankton in the western tropical Pacific Ocean: its community structure, cell size and carbon biomass

Frontiers in Marine Science, 2023
Phytoplankton, as a crucial component of the marine ecosystem, plays a fundamental role in global biogeochemical cycles. This study investigated the composition and distribution of phytoplankton in the western Tropical Pacific Ocean using the Utermöhl ...
Wenzhuo Yan, Wenzhuo Yan, Zhuo Chen, Zhuo Chen, Zhuo Chen, Linlin Zhang, Linlin Zhang, Feng Wang, Feng Wang, Feng Wang, Guicheng Zhang, Guicheng Zhang, Jun Sun, Jun Sun, Jun Sun, Jun Sun   +15 more
doaj   +1 more source

Rounding of aggregates of biological cells: Experiments and simulations [PDF]

, 2005
The influence of surface tension and size on rounding of cell aggregates are studied using chick embryonic cells and numerical simulations based on the cellular Potts model.
Beysens, Binder, Forgacs, Foty, Foty, Gillet, Glazier, Gordon, Graner, Holm, Jiang, Levine, Mann, Marée, Palsson, Phillips, Rieu, Rieu, Rieu, Van Oss   +19 more
core   +5 more sources

Differential Physiological Responses of Small Thalassiosira pseudonana and Large Thalassiosira punctigera to the Shifted-High Light and Nitrogen

Journal of Marine Science and Engineering, 2021
With global warming, the intensity and frequency of extreme episodic weather events such as typhoons are rising in tropical and subtropical regions, disturbing the water column and shifting phytoplankton therein from deep to surface layers, and exposing ...
Zhen Qin, Xiaomin Xia, Guangming Mai, Yehui Tan, Gang Li   +4 more
doaj   +1 more source

Cell-size maintenance: universal strategy revealed

, 2015
How cells maintain a stable size has fascinated scientists since the beginning of modern biology, but has remained largely mysterious. Recently, however, the ability to analyze single bacteria in real time has provided new, important quantitative ...
Jun, Suckjoon, Taheri-Araghi, Sattar
core   +2 more sources