Results 111 to 120 of about 145,789 (377)

A reconnaissance magnetostratigraphy of Georgian Plio-Quaternary volcanic provinces (southern Caucasus) [PDF]

open access: yesGeofísica Internacional, 2001
A palaeomagnetic and rock magnetic study was carried out on samples of the Djavakheti, Khrami and Kazbeki regions in Georgia. Samples were taken from 44 localities from 247 subaerial lava flows and from 3 lacustrine sedimentary layers, interbedded ...
Ana-María Soler   +5 more
doaj  

Redefining the boundary between crystalline and sedimentary rock of Eastern Dahomey Basin. [PDF]

open access: yesSci Rep, 2021
Mosuro GO   +5 more
europepmc   +1 more source

Ammonia Dynamics in the Human Body: Insights in Biomedical Sensing Technologies

open access: yesAdvanced Sensor Research, EarlyView.
Ammonia (NH3) is a significant biomarker in diagnostics, affecting the respiratory system, stomach, liver, kidneys, bladder, and gastrointestinal tract. NH3 detection, using sensors, has the potential to improve medical diagnosis. This review examines recent advancements in NH3 sensing technologies and explores future research directions, including ...
Annelot Nijkoops   +8 more
wiley   +1 more source

Nanocrystalline Cellulose from the Solitary Tunicate Phallusia Mammillata, a Valuable Nanocellulose Precursor

open access: yesAdvanced Sustainable Systems, EarlyView.
This study explores the potential of locally harvested Phallusia mammillata, a tunicate usually discarded as waste from mussles farming as a viable source for producing various high‐grade cellulose derivatives in the form of nanofibrils (NFC) and nanocrystals (CNC). Abstract Ascidians are ubiquitous filter‐feeding marine invertebrates, the only animals
Andrea Riccioni   +6 more
wiley   +1 more source

Problems of the Metamorphic and Igneous Rocks of the Mojave Desert [PDF]

open access: yes, 1954
The Mojave Desert region, as defined by Baker (1911, pp. 335-336), is the region of desert plains, mountains, and valleys comprising the extreme southwestern portion of the Great Basin (fig. 1).
McCulloh, Thane H.
core  

Trait‐Based Life History Strategies Shape Bacterial Niche Breadth

open access: yesAdvanced Science, EarlyView.
This study investigates bacterial niche breadth through a large‐scale soil survey and over 2000 bacterial genomes. It identifies key life‐history traits—growth, competition, stress tolerance, resource acquisition, and dispersal—that correlate with niche breadth.
Ziheng Peng   +8 more
wiley   +1 more source

Advancements in Biochar as a Sustainable Adsorbent for Water Pollution Mitigation

open access: yesAdvanced Science, EarlyView.
Biochar, obtained through pyrolysis of organic waste, serves as a sustainable solution for wastewater treatment due to its adaptability and low‐cost nature. This review comprehensively examines recent advancements in biochar production, functional modifications, and applications, highlighting the integration of machine learning and artificial ...
Devika Laishram   +3 more
wiley   +1 more source

Differential sedimentary evolution of typical aulacogens of Meso-Neoproterozoic in North China craton

open access: yesScientific Reports
Many countries and regions in the world have obtained industrial oil flow in the Meso-Neoproterozoic sedimentary strata and formed commercial exploitation in recent years.
Cong Tan   +5 more
doaj   +1 more source

Mars' Young Sedimentary Rocks: Early thinning, late persistence, diachronous boundaries, and a regional dichotomy [PDF]

open access: yesarXiv
Mars' sedimentary rocks record Gyrs of environmental change. New data enable the first global analysis of paleo-environment relevant physical properties of these rocks, including layer thickness and accumulation rate. We find that layer thicknesses of post-3.5 Ga sedimentary rocks across the Martian surface show coherent variations at ~1000 km-scale ...
arxiv  

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