Results 101 to 110 of about 63,845 (293)

Landscape Dynamics in the Caspian Lowlands Since the Last Deglaciation Reconstructed From the Pedosedimentary Sequence of Srednaya Akhtuba, Southern Russia

Geosciences, 2018
Surface Kastanozem of the Lower Volga area was first studied as a part of the pedocomplex, with the lower part (148⁻160 cm) formed in Early Khvalynian Chocolate clays (13⁻15 ka), the middle part (100⁻148 cm) in a mixed clay-loess ...
Marina Lebedeva, Alexander Makeev, Alexey Rusakov, Tatiana Romanis, Tamara Yanina, Redzhep Kurbanov, Pavel Kust, Evgeniy Varlamov   +7 more
doaj   +1 more source

The Study of Collapsible for Intact Loess and Remolded Loess [PDF]

Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering, 2015
At present, there are not enough research for the intact loess and remolded loess collapsible; There are tests for the some region loess, to study the law of collapsible.The results showed that: The curve of intact loess and remolded loess collapsible deformation is defined by two turning points and three segments.The collapsible coefficient of intact ...
openaire   +1 more source

Rainfall‐Induced Physical Crusting Is Associated With Near‐Surface Structural Degradation and Strain Localization During Drying in Loess Soil

Land Degradation &Development, EarlyView.
ABSTRACT Rainfall‐induced physical crusting is associated with degradation of near‐surface soil structure, but its pore‐scale structural and mechanical evolution during drying remains poorly resolved. We combined time‐resolved X‐ray computed tomography (XCT), digital volume correlation (DVC), and surface‐aligned stratification to track pore ...
Ruikun Feng, Yiru Chen, Guanheng Liu, Qinqian Meng, Jian Wang   +4 more
wiley   +1 more source

Synergistic and Trade‐Off Effects of Plant Communities on Slope Runoff and Sediment Yield

Land Degradation &Development, EarlyView.
ABSTRACT Plant community functional structure plays an important role in regulating slope runoff and sediment yield on the Loess Plateau. Based on runoff plot monitoring and vegetation surveys in the Yangjuangou catchment, we used partial least squares regression (PLSR) and variable importance in projection (VIP) analysis to assess the effects of ...
Menghan Wu, Jian Hou, Qingsheng Zhong
wiley   +1 more source

Cyanobacteria and loess-an underestimated interaction [PDF]

, 2019
Background: Biocrusts are important functional units in dryland ecosystems. Regarded as ecosystem engineers, cyanobacteria in biocrusts contribute several major physico-chemical and biological processes.
Lehmkuhl, Frank, Codd, Geoffrey A., Meriluoto, Jussi, Codd, Geoffrey, Hambach, Ulrich, Svirčev, Zorica, Obreht, Igor, Marković, Slobodan B., Dulić, Tamara, Marković, Slobodan   +9 more
core   +1 more source

Learning curve of nurse‐performed electromagnetic‐guided nasogastric tube placement in adult ICU patients: A multicenter prospective study

Nutrition in Clinical Practice, EarlyView.
Abstract Background Safe and timely nasogastric tube (NGT) placement is essential for effective enteral nutrition delivery in critically ill patients. Electromagnetic‐guided systems has been shown to improve placement accuracy and may reduce delays from confirmatory imaging, but evidence on how nurses acquire competence with this technology remains ...
Kazunao Mori, Hideaki Sakuramoto, Tomoaki Ikezawa, Megumi Kamogawa, Hideaki Note, Toshifumi Miki, Saiko Okamoto, Maiko Motoki, Hideki Hashimoto, Junko Tatsuno, Tomomi Yoshida, Saori Kajiwara, Masako Shirasaka, Megumi Mukouyama, Hitoshi Tsugu, Kensuke Nakamura   +15 more
wiley   +1 more source

East Asian monsoon variability over the last seven glacial cycles recorded by a loess sequence from the northwestern Chinese Loess Plateau

, 2006
A 180-m-thick loess-paleosol sequence from the northwestern Chinese Loess Plateau was investigated to construct a high-resolution record of the East Asian monsoon variability over the last seven glacial-interglacial cycles.
Liu, Q-S., Ji, F-J., Jun Chen, Steven C. Clemens, J. Chen, R. Tada, Q. S. Liu, Junfeng Ji, Ruiji Tada, Chen, J., Tada, R., Y. Sun, Sun, Y., Clemens, S.C., J. F. Ji, Qingsong Liu, S. C. Clemens, Youbin Sun   +17 more
core   +1 more source

Effect of Case Variation on Mastoidectomy Training Using 3D‐Printed Temporal Bones Models—A Prospective, Randomized Trial

Otolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective To investigate effects of repeated training with anatomically varied versus identical 3D‐printed models on skill acquisition, cognitive load, and skill retention in novice mastoidectomy trainees. Study Design A prospective, randomized, controlled, educational trial conducted April to September 2024 including a 3‐month retention test.
Adam Omari, Andreas Frithioff, Anders Nøhr, Mads S. Sørensen, Steven A. W. Andersen   +4 more
wiley   +1 more source

Tetraether biomarker records from a loess-paleosol sequence in the western Chinese Loess Plateau

, 2013
The ubiquitous occurrence of glycerol dialkyl glycerol tetraethers (GDGTs) in soils and their ability to record temperature and environmental changes offer the prospect of independently reconstructing continental paleotemperature and paleoenvironment ...
Rao, Zhiguo, Zhiyang eLi, Zhiguo eRao, Jie eZhang, Chen, Fahu, Guodong eJia, Fahu eChen, Zhang, Jie, Li, Zhiyang, Jia, Guodong   +9 more
core   +1 more source

Study on the regularity of rainfall infiltration and deformation in ground fissure zones of loess in Xi’an City under the background of rising groundwater level

Zhongguo dizhi zaihai yu fangzhi xuebao
This study aims to investigate the deformation patterns of loess ground fissure sites in Xi’an under the combined effects of rising groundwater levels and rainwater infiltration.
Zhanghui ZHAI, Wei SHI, Ruijun JIANG, Qiangbing HUANG, Chunmiao WANG, Yan WANG, Youlin WANG, Zhijie JIA   +7 more
doaj   +1 more source