Results 21 to 30 of about 2,716 (179)

Some Like It Hot -Structural Changes in Extremophile Rubredoxin at 120 °C. [PDF]

open access: yesAngew Chem Int Ed Engl
We reveal the high temperature crystal structure of a hyperthermophilic (Pyrococcus furiosus) rubredoxin at 393 K (120 °C), together with multiple complementary structures down to 100 K. The results are compared with molecular dynamics calculations. Significant changes in H‐bonding are observed.
Doukov T   +4 more
europepmc   +3 more sources

Using near–surface temperature data to vicariously calibrate high-resolution thermal infrared imagery and estimate physical surface properties

open access: yesMethodsX, 2022
Thermal response of the surface to solar insolation is a function of the topography and the thermal physical characteristics of the landscape, which include bulk density, heat capacity, thermal conductivity and surface albedo and emissivity.
Timothy N. Titus   +3 more
doaj   +1 more source

Bayesian approach to SETI [PDF]

open access: yesProceedings of the National Academy of Sciences, 2018
SignificanceOngoing and future initiatives in the search for extraterrestrial intelligence (SETI) will explore the Galaxy on an unprecedented scale to find evidence of communicating civilizations beyond Earth. Here, we construct a Bayesian formulation of SETI to infer the posterior probability of the mean number of radio signals crossing Earth, given a
Grimaldi, Claudio, Marcy, Geoffrey W
openaire   +5 more sources

Clinical Profile of Cases of COVID-19 in Far Western Province of Nepal

open access: yesJournal of Nepal Health Research Council, 2020
The novel coronavirus (COVID-19) cause various symptoms such as pneumonia, fever, breathing difficult and lung infection. Till now, total 9 cases are reported in Nepal and 4 cases from this province.
Jagadish Joshi   +6 more
doaj   +1 more source

Determinants of South African agricultural exports to African markets

open access: yesJournal of Economic and Financial Sciences, 2023
Orientation: The ‘Africa we want, 2063 Agenda’ is slowly becoming a reality. On 01 January 2021, business operations of the African continental free trade area officially took off.
Thembalethu M. Seti
doaj   +1 more source

On Detecting Interstellar Scintillation in Narrowband Radio SETI

open access: yesThe Astrophysical Journal, 2023
To date, the search for radio technosignatures has focused on sky location as a primary discriminant between technosignature candidates and anthropogenic radio frequency interference (RFI).
Bryan Brzycki   +6 more
doaj   +1 more source

SETI [PDF]

open access: yesNature, 1989
Not ...
openaire   +1 more source

SETI in 2022

open access: yesActa Astronautica
Accepted to Acta Astronautica.
Jason T. Wright   +4 more
openaire   +4 more sources

Is the "Star trek" concept of aliens really naive?: A comment on Duric and Field [PDF]

open access: yesSerbian Astronomical Journal, 2004
Several assumptions used in the recent review paper on the search for extraterrestrial intelligence (SETI) by Duric and Field (2003) are critically discussed.
Ćirković Milan M.
doaj   +1 more source

¿Cómo enviar mensajes a extraterrestres?

open access: yesChasqui, 2015
Durante más de treinta años, los humanos han utilizado la tecnología de radio para buscar evidencia de inteligencia extraterrestre -ETI-. Colectivamente, estos esfuerzos se conocen como SETI.
Comité Seti
doaj   +1 more source

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