Results 71 to 80 of about 1,663,862 (332)

A Termite‐Inspired Alternative to Cement

open access: yesAdvanced Functional Materials, EarlyView.
A termite‐inspired composite of clay, cellulose, and lignin forms a dense fibrous network with concrete‐like strength (32 MPa) and superior elasticity, processed at ambient temperature. Abstract Clay combined with organic materials is used by termites as a strong and durable construction material for their mounds with minimal environmental impact. Here,
Oren Regev   +3 more
wiley   +1 more source

Improving LAI retrieval in complex mountains with implicit mutual terrain irradiance

open access: yesTrees, Forests and People
Leaf area index (LAI), a key indicator of vegetation canopy structure, is vital to regional ecological assessment and environmental monitoring. However, rugged terrain can induce the radiation distortion recorded by senses, thus resulting in substantial ...
Chenghao Liu   +8 more
doaj   +1 more source

The First Neptune Analog or Super-Earth with Neptune-like Orbit: MOA-2013-BLG-605Lb

open access: yes, 2016
We present the discovery of the first Neptune analog exoplanet or super-Earth with Neptune-like orbit, MOA-2013-BLG-605Lb. This planet has a mass similar to that of Neptune or a super-Earth and it orbits at $9\sim 14$ times the expected position of the ...
A. Bhattacharya   +50 more
core   +3 more sources

Contribution of the Moon-forming Impactor to the Volatile Inventory in the Bulk Silicate Earth

open access: yesThe Planetary Science Journal
The timing and mechanism by which the present-day inventory of life-essential volatiles hydrogen–carbon–nitrogen–sulfur (H–C–N–S) in the bulk silicate Earth (BSE) was established are debated.
Damanveer S. Grewal   +2 more
doaj   +1 more source

Orbital migration of low-mass planets in evolutionary radiative models: Avoiding catastrophic infall

open access: yes, 2010
Outward migration of low-mass planets has recently been shown to be a possibility in non-barotropic disks. We examine the consequences of this result in evolutionary models of protoplanetary disks.
Baruteau   +8 more
core   +1 more source

Characterization of the K2-18 multi-planetary system with HARPS: A habitable zone super-Earth and discovery of a second, warm super-Earth on a non-coplanar orbit [PDF]

open access: yes, 2017
The bright M dwarf K2-18 at 34 pc is known to host a transiting super-Earth-sized planet orbiting within the star's habitable zone; K2-18b. Given the superlative nature of this system for studying an exoplanetary atmosphere receiving similar levels of ...
Almenara, J. M.   +18 more
core   +2 more sources

Real‐Time, Label‐Free Monitoring of Cell Behavior on a Bioelectronic Scaffold

open access: yesAdvanced Functional Materials, EarlyView.
A bioelectronic nanofibrous scaffold is introduced that supports cell growth while enabling real‐time, label‐free monitoring of cellular behavior through impedance measurements. The system correlates electrical signals with cell viability and surface coverage, offering an integrated platform for studying dynamic biological processes and advancing next ...
Dana Cohen‐Gerassi   +10 more
wiley   +1 more source

Possible Motivations for Christians to Preserve Creation

open access: yesStudia Ecologiae et Bioethicae
Three different aspects are presented that can motivate people to work for the preservation of creation. All three motivations are closely linked to Christianity, so that Christianity could become the key to solve the global problems.
Andreas May
doaj   +1 more source

The HARPS search for southern extra-solar planets XXXII. Only 4 planets in the Gl~581 system [PDF]

open access: yes, 2011
The Gl 581 planetary system has generated wide interest, because its 4 planets include both the lowest mass planet known around a main sequence star other than the Sun and the first super-Earth planet in the habitable zone of its star.
Almenara, J. M.   +16 more
core  

Simulation and analysis of sub-{\mu}as precision astrometric data for planet-finding

open access: yes, 2010
We present a vector formulation of an interferometric observation of a star, including the effects of the barycentric motion of the observatory, the proper motions of the star, and the reflex motions of the star due to orbiting planets. We use this model
Kasdin, N. Jeremy, Savransky, Dmitry
core   +1 more source

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