Results 51 to 60 of about 28,042 (247)

Spectral signatures of photosynthesis I: Review of Earth organisms

, 2007
Why do plants reflect in the green and have a 'red edge' in the red, and should extrasolar photosynthesis be the same? We provide: 1) a brief review of how photosynthesis works; 2) an overview of the diversity of photosynthetic organisms, their light ...
Bebout B.M., Des Marais D.J., Ehrenreich A., Govindjee, , Janet Siefert, Joliot P., Karentz D., Manning W.M., Miller S.R., Nancy Y. Kiang, Reeburgh W.S., Robert E. Blankenship, Tucker C.J., Tucker C.J.   +13 more
core   +1 more source

The Astrobiology Primer v2.0 [PDF]

Astrobiology, 2016
1.1. What is astrobiology? Astrobiology is the science that seeks to understand the story of life in our universe. Astrobiology includes investigation of the conditions that are necessary for life to emerge and flourish, the origin of life, the ways that life has evolved and adapted to the wide range of environmental conditions here on Earth, the ...
Domagal-Goldman, Shawn D., Wright, Katherine E., Adamala, Katarzyna, Arina de la Rubia, Leigh, Bond, Jade, Dartnell, Lewis R., Goldman, Aaron D., Lynch, Kennda, Naud, Marie-Eve, Paulino-Lima, Ivan G., Singer, Kelsi, Walter-Antonio, Marina, Abrevaya, Ximena C., Anderson, Rika, Arney, Giada, Atri, Dimitra, Azúa-Bustos, Armando, Bowman, Jeff S., Brazelton, William J., Brennecka, Gregory A., Carns, Regina, Chopra, Aditya, Colangelo-Lillis, Jesse, Crockett, Christopher J., DeMarines, Julia, Frank, Elizabeth A., Frantz, Carie, de la Fuente, Eduardo, Galante, Douglas, Glass, Jennifer, Gleeson, Damhnait, Glein, Christopher R., Goldblatt, Colin, Horak, Rachel, Horodyskyj, Lev, Kereszturi, Akos, Knowles, Emily, Mayeur, Paul, McGlynn, Shawn, Miguel, Yamila, Montgomery, Michelle, Neish, Catherine, Noack, Lena, Rugheimer, Sarah, Stüeken, Eva E., Tamez-Hidalgo, Paulina, Imari Walker, Sara, Wong, Teresa, Kacar, Betul   +48 more
openaire   +7 more sources

The Morphological, Behavioral, and Transcriptomic Life Cycle of Anthrobots

Advanced Science, EarlyView.
DNA is thought to determine shape, behavior, and lifespan, with developmental plasticity reserved for stem cells, embryos, and species like amphibia. How much morphogenetic plasticity do adult somatic human cells exhibit? Anthrobots are a self‐organizing, motile synthetic living construct made of genetically normal human epithelial cells.
Gizem Gumuskaya, Nikolai Davey, Pranjal Srivastava, Andrew Bender, Léo Pio‐Lopez, Douglas Hazel, Michael Levin   +6 more
wiley   +1 more source

Biohybrid Computing with Proteinoids and Algae

Advanced Science, EarlyView.
We developed a novel biohybrid computing system by combining proteinoid microspheres with algae. The biological mixture creates spontaneous electrical oscillations. These oscillations can perform simple logic operations, such as AND, OR, NAND, and NOR gates. Environmental factors like temperature and pH affect how the system works.
Panagiotis Mougkogiannis, Andrew Adamatzky   +1 more
wiley   +1 more source

Astrobiology and astrophilosophy: subsuming or bifurcating diciplines? [PDF]

, 2019
Initially, astrobiology subsumed into philosophy. However, philosophy has increasingly subsumed into astrobiology concurrent with it steadily becoming an observational and experimental activity that mainly focuses on the link between life and the cosmos,
von Hegner, Ian
core  

The Water Activity of Mars-relevant Multicomponent Brines: The Changing Influence of Perchlorate on Habitability over Time

The Planetary Science Journal, 2023
Low water activity limits the habitability of aqueous environments, and salts present on Mars are known to reduce water activity. As environmental brines are not pure solutions of a single salt, predicting their water activity is difficult without direct
Adam H. Stevens, Charles S. Cockell
doaj   +1 more source

Physicochemical Parameters Limiting Growth of Debaryomyces hansenii in Solutions of Hygroscopic Compounds and Their Effects on the Habitability of Martian Brines

Life, 2021
The availability of liquid water is a prerequisite for all lifeforms on Earth. In hyperarid subzero environments like the Dry Valleys in Antarctica or the near-subsurface of Mars liquid water might be provided temporarily by hygroscopic substances that ...
Jacob Heinz, Vita Rambags, Dirk Schulze-Makuch   +2 more
doaj   +1 more source

Contactless Conductivity Detection for Capillary Electrophoresis—Developments From 2020 to 2024

ELECTROPHORESIS, EarlyView.
ABSTRACT The review covering the development of capillary electrophoresis with capacitively coupled contactless conductivity detection from 2020 to 2024 is the latest in a series going back to 2004. The article considers applications employing conventional capillaries and planar lab‐on‐chip devices as well as fundamental and technical developments of ...
Peter C. Hauser, Pavel Kubáň
wiley   +1 more source

Astrobiology: Science Learning Activities for Afterschool [PDF]

, 2006
This product consists of eight astrobiology after-school activities, each of which may be completed in about one hour. The science of astrobiology is concerned with the question of whether or not life exists on other planets.

core  

Maximizing Scientific Exploitation of Raman Spectroscopy With A.C.M.E. (Atmospheric Chamber for Measurements in Environment)

Journal of Raman Spectroscopy, EarlyView.
Simulated planetary gas detection using the A.C.M.E. chamber and a novel hollow‐core fiber Raman sensor. Controlled atmospheric mixtures were used to evaluate the sensor’s performance, demonstrating its capability to detect gases such as CO₂, O₂, and N₂. The results support the applicability of the HCF‐based Raman sensor in future planetary exploration
I. Reyes‐Rodríguez, S. Julve‐Gonzalez, M. Veneranda, J. A. Manrique, A. Sanz‐Arranz, M. Mayoral‐Yagüe, S. Jiménez‐Blázquez, L. Asenjo‐Estévez, E. Charro‐Huerga, J. Delgado‐Iglesias, E. A. Lalla, B. Barrios‐Areinamo, F. Rull, G. Lopez‐Reyes   +13 more
wiley   +1 more source