Results 71 to 80 of about 2,503 (315)

Polymerase Chain Reaction. Perturbation Theory and Machine Learning Artificial Intelligence‐Experimental Microbiome Analysis: Applications to Ancient DNA and Tree Soil Metagenomics Cases of Study

open access: yesAdvanced Intelligent Systems, EarlyView.
The polymerase chain reaction (PCR).Perturbation Theory and Machine Learning framework integrates perturbation theory and machine learning to classify genetic sequences, distinguishing ancient DNA from modern controls and predicting tree health from soil metagenomic data.
Jose L. Rodriguez   +19 more
wiley   +1 more source

A New 2D Energy Balance Model for Simulating the Climates of Rapidly and Slowly Rotating Terrestrial Planets

open access: yesThe Planetary Science Journal
Energy balance models (EBMs), alongside radiative–convective climate models and global climate models (GCMs), are useful tools for simulating planetary climates.
Ramses M. Ramirez
doaj   +1 more source

Causal analysis of trade loss from pathogens: A global study of foot and mouth disease impacts on meat exports

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Our general interest is in global trade loss from livestock pathogens, specifically exports. We adopt a causal inference approach that considers animal disease outbreaks over time as non‐staggered binary treatments with the potential for switching in (infection) and out of treatment (recovery) within the sample period. The outcome evolution of
Mohammad Maksudur Rahman   +1 more
wiley   +1 more source

Planetary Albedo Is Limited by the Above-cloud Atmosphere: Implications for Sub-Neptune Climates

open access: yesThe Astrophysical Journal
Energy limits that delineate the “habitable zone” for exoplanets depend on a given exoplanet’s net planetary albedo (or “Bond albedo”). We here demonstrate that the planetary albedo of an observed exoplanet is limited by the above-cloud atmosphere—the ...
Sean Jordan   +2 more
doaj   +1 more source

Rangewide responses of Mimulus cardinalis to an extreme heat event

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Extreme events are an understudied aspect of ongoing anthropogenic climate change that could play a disproportionate role in the threat that rapid environmental shifts pose to natural populations. Methods We exposed plants originating from seeds that were harvested before (ancestors) and after (descendants) multiple extreme heat events
Lucas J. Albano   +6 more
wiley   +1 more source

The Politics of Framing the Student Problem: Inquiries Into Australian Civics Education, 2006–2024

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT Recurring debates about civics, the kinds of history that should, and should not, be taught in school, and ‘standards debates’ about the ‘basics’ typically follow on the heels of recurring moral panics about the ‘declining’ state of ‘our’ education system.
Patrick O'Keeffe   +2 more
wiley   +1 more source

Oxidizing ExoCAM: Introducing the Radiative Effects of Oxygen and Ozone into the ExoCAM General Circulation Model

open access: yesThe Planetary Science Journal
Oxygen and ozone are two of the most important gases in Earth’s atmosphere. These arose as a result of photosynthesis and appeared prominently around 2.3–2.4 billion yr ago.
Russell Deitrick   +3 more
doaj   +1 more source

Exploring the Effect of Production Conditions of Chlorella minutissima on Its Pharmaceutical Potential: A Natural Source for Bioactive Compounds

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In this study, Chlorella minutissima UTEX 234‐1 was produced under 12.43 μmol of photons m−2 s−1 (from the side surface, I1), 23.29 μmol of photons m−2 s−1 (from the top surface, I2), and 62.14 μmol of photons m−2 s−1 (from the top surface, I3) in BG‐11 medium (B1).
Çağla Yarkent   +2 more
wiley   +1 more source

Shrinkage Mitigation and Mechanical Properties of Cement‐Based Mortar With Silane‐Functionalized Hydrogels

open access: yesJournal of Applied Polymer Science, EarlyView.
Schematic depiction of silane‐functionalized hydrogels utilized in this study along with chemical structures of the primary comonents (Acrylamide, N,N'‐methylenebisacrylamide, and 3‐(trimethoxysilyl) propyl methacrylate). ABSTRACT This study investigates the applications of silane‐loaded polymer hydrogels in field‐relevant cement‐based mortar intended ...
Daniel S. Hiller   +3 more
wiley   +1 more source

The ecology of peace: preparing Colombia for new political and planetary climates [PDF]

open access: bronze, 2018
Alejandro Salazar   +19 more
openalex   +1 more source

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