Article
Engineering, Environmental
Zhaohuan Li, Chaowen Chen, Yanhong Gao, Bingyao Wang, Dongfang Wang, Yue Du, Lichao Liu, Zhengyan Wu, Dongqing Cai
Summary: The nano composite AC, made of attapulgite and carboxymethyl cellulose, significantly improved soil stability and provided a stable microenvironment for the growth of mixed cyanobacteria, promoting biocrust formation and sand fixation in harsh desert environments.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Kumiko Matsui, Nicholas D. Pyenson
Summary: A Desmostylus tooth from the earliest Miocene (Aquitanian) Skooner Gulch Formation in northern California, USA is reported here. This specimen exhibits both primitive and diagnostic features different from other desmostylid genera, suggesting that Desmostylus has persisted with its distinctive tooth morphology largely unchanged for over 15 million years and possibly originated in western North America.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Editorial Material
Geology
Jef Deckers, Roel De Koninck, Stijn Everaert, Rieko Adriaens, Jasper Verhaegen
Summary: Granulometric, carbonate and glauconite analyses were conducted on the Kiel and Antwerpen members in the Antwerp area. The lower part of the Antwerpen Member has a finer grain size and higher clay content compared to the Kiel Member. Shell fragments and carbonate content are more abundant in the lower Antwerpen Member. The glauconite content fluctuates between 35% and 60% for both members.
Article
Geosciences, Multidisciplinary
Zongping Ren, Xing Zhang, Xun-chang (John) Zhang, Zhanbin Li, Peng Li, ZhuangZhuang Zhou
Summary: The research found that sand cover treatment changed the runoff generation mechanism from infiltration-excess runoff to subsurface saturation-excess runoff, delaying runoff initiation and increasing runoff volumes and soil loss compared to the control. Rill erosion on sand-covered slopes was dominated by shallow and wider rills, while on loess slopes it was dominated by narrow and deeper rills. The presence of a sand layer over less pervious loess soil promoted return flow and accelerated rill formation and development.
Article
Energy & Fuels
Josip Ivsinovic, Vjekoslav Pletes, Valentina Babic
Summary: Sand control and hydrocarbon production in weakly consolidated sandstones pose a growing challenge worldwide, with methods depending on reservoir geology. This paper focuses on sand management in oil field B, analyzing subsurface and surface systems to demonstrate the effectiveness of a specific sand granulation choice for gravel pack modification. The results prove the suitability of this approach for the wider geological area of field B, showing successful oil production with extended workover intervals.
PETROLEUM SCIENCE AND TECHNOLOGY
(2022)
Article
Mechanics
D. Moteki, T. Murai, T. Hoshino, H. Yasuda, S. Muramatsu, K. Hayasaka
Summary: The hydraulic quantities governing the generation of bedforms have been investigated through various research methods. Numerical analysis can accurately describe morphodynamics, but it is based on assumptions. A measurement method using cameras and a line laser has been developed to construct a digital twin of the process of bedforms generation and development.
Article
Chemistry, Multidisciplinary
Feng Han, Chengxiang Wang, Zhibo Liu, Liangying Li, Wenhua Yin
Summary: This study investigates the transportation patterns and sedimentation of sand along highways in moving dune areas, finding that dunes not only obstruct wind-drift sand, but also contribute to sand accumulation on road surfaces. The presence of dunes affects the flow field structure and sand sedimentation distribution on highways, leading to increased sand accumulation in certain areas. Measures to actively control sediment and reduce sand-dune movement speed are necessary to minimize the damage caused by wind-sand activity in desert highways.
APPLIED SCIENCES-BASEL
(2022)
Article
Geosciences, Multidisciplinary
Olga M. Oliveira de Araujo, Orangel Aguilera, Giovanni Coletti, Fernando L. Valencia, Luis A. Buatois, Ricardo Lopes
Summary: The study shows that the presence of biogenic structures in the Pirabas Formation significantly improves porosity and permeability, making it highly prospective for hydrocarbon exploration. Considering its relationship with offshore basins in Northern Brazil, integrating ichnological datasets with reservoir characterization studies is highlighted for more accurate reservoir quality assessments.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Marc U. Grund, Mark R. Handy, Joerg Giese, Lorenzo Gemignani, Jan Pleuger, Kujtim Onuzi
Summary: The Dinaric-Hellenic mountain belt bends due to the activity of the Shkoder-Peja Transfer Zone (SPTZ) and the Shkoder-Peja Normal Fault (SPNF). The SPTZ dextrally offsets the Dinaric-Hellenic nappes by 75 km, while the SPNF is a composite structure comprising five fault segments. The clockwise rotation of the Hellenides with respect to the Dinarides is driven by the bending and rollback of the untorn part of the Adriatic slab beneath the Hellenides.
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2023)
Article
Biology
Ryuji Yanase, Flavia Moreira-Leite, Edward Rea, Lauren Wilburn, Jovana Sadlova, Barbora Vojtkova, Katerina Pruzinova, Atsushi Taniguchi, Shigenori Nonaka, Petr Volf, Jack D. Sunter
Summary: Attachment to a substrate is a common strategy among eukaryotic parasites for maintaining position in a specific ecological niche. In this study, the researchers used advanced electron microscopy techniques to investigate the adhesion of Leishmania parasites to the stomodeal valve in the sand fly vector. They found distinct structural elements in the attachment plaque and identified five stages of haptomonad-like cell differentiation. The study also demonstrated the importance of calcium for Leishmania adhesion in vitro. These findings provide important insights into the structural and regulatory aspects of Leishmania adhesion and contribute to a better understanding of its life cycle.
Article
Construction & Building Technology
Alvaro Paul, Mehdi Rashidi, Jin-Yeon Kim, Laurence J. Jacobs, Kimberly E. Kurtis
Summary: This study examines the impact of sulfate- and sulfide-bearing sand on delayed ettringite formation (DEF) in mortar. Results show that sand containing these substances leads to increased damage and earlier expansion in mortar, attributed to factors such as accelerated decomposition of alkali-feldspar and microcracking due to thermal deformation.
CEMENT & CONCRETE COMPOSITES
(2022)
Article
Environmental Sciences
Kevin Schroder, Elke Kossel, Mark Lenz
Summary: The study assessed the abundance of microplastics in drift line sediments from three sites in Kiel Fjord, Western Baltic Sea. Results showed lower microplastic particle counts at sites close to a sewage plant and with intense beach use, while higher counts were found at the site with high litter loads.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Multidisciplinary Sciences
Shilei Li, Steven L. Goldstein, Maureen E. Raymo
Summary: Reconstructing the Cenozoic history of continental silicate weathering is crucial for understanding Earth's carbon cycle and greenhouse history. While some proxies suggest an increase in continental silicate weathering, Be isotopes in seawater have shown stable continental weathering and/or denudation rates over the last 12 million years. Research results indicate that predicted seawater Be ratios remain nearly constant even with a significant increase in denudation and Be weathering rates, suggesting that the large increase in continental weathering was counterbalanced by other geological processes.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Plant Sciences
Xia Chen, Barbara Lesniewska, Rodion Boikine, Nicole Yun, Tejasvinee Atul Mody, Prasad Vaddepalli, Kay Schneitz
Summary: Intercellular communication is crucial for organogenesis. The study investigates the architecture and maintenance of the QKY/SUB signaling complex and its role in tissue morphogenesis using genetics and microscopy techniques. They found that QKY promotes the formation of SUB homooligomers and physically interacts with SUB at the cell surface. The interaction between QKY and SUB is essential for maintaining SUB levels and controlling tissue morphogenesis.
Article
Geosciences, Multidisciplinary
Waqar Ahmad, Murray K. Gingras
Summary: This study characterizes the depositional environments of the Lower Cretaceous Wabiskaw Member using sedimentology and ichnology. It identifies four sedimentary facies associations and their corresponding ichnofacies, providing insights into the wave-influenced nearshore settings during that time period.
MARINE AND PETROLEUM GEOLOGY
(2022)