Results 61 to 70 of about 283,957 (359)

Long‐Term Active Rather than Passive Restoration Promotes Soil Organic Carbon Accumulation by Alleviating Microbial Nitrogen Limitation in an Extremely Degraded Alpine Grassland

Advanced Science, EarlyView.
Active restoration increases soil organic carbon stocks by reducing microbial nitrogen limitation. Nitrogen availability promotes particulate to mineral‐associated organic carbon conversion by reducing microbial carbon use efficiency. Passive restoration has no effect on soil organic carbon stocks.
Jinchao Gong, Feida Sun, Jingjing Wu, Shijie Zhou, Yue Xiu, Linlin Li, Tahmina Kausar, Zhouwen Ma, Jiqiong Zhou, Lin Liu, Yongxing Cui, Jordi Sardans, Josep Peñuelas, Ahmed Elrys, Ji Chen, Yanfu Bai   +15 more
wiley   +1 more source

Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths

Advanced Science, EarlyView.
Hollow core optical fibres bypass material constraints that limit optical fibres at ultraviolet and visible wavelengths. However, their challenging fabrication has limited their development, and significant gains in performance remain possible. In this perspective we outline approaches to enable the next generation of fibres for shorter wavelengths ...
Robbie Mears, Kerrianne Harrington, Jonathan C. Knight, William J. Wadsworth, James M. Stone, Tim A. Birks   +5 more
wiley   +1 more source

Climate Effects on Tallgrass Prairie Responses to Continuous and Rotational Grazing

Agronomy, 2019
Cattle grazing is an important economic activity in the tallgrass prairie systems in the Great Plains of the United States. Tallgrass prairie may respond differently to grazing management (e.g., high and low grazing intensity) under variable climate ...
Yuting Zhou, Prasanna H. Gowda, Pradeep Wagle, Shengfang Ma, James P. S. Neel, Vijaya G. Kakani, Jean L. Steiner   +6 more
doaj   +1 more source

Critical Limitations in Cryogenic Laser Cooling of Solids: Symmetry‐Related Fluorescence Trapping and Condensation‐Induced Parasitic Heating

Advanced Science, EarlyView.
This study uncovers two overlooked bottlenecks in cryogenic laser cooling of solids: symmetry‐driven fluorescence trapping and water vapor condensation. We demonstrate that breaking sample symmetry enhances fluorescence escape, while condensation dominates parasitic heating below 135 K.
Biao Zhong, Jiayi Zhang, Haodong Yang, Lianzhong Deng, Mauro Tonelli, Ercang Luo   +5 more
wiley   +1 more source

Effects of grazing and mowing on ground-dwelling predatory arthropods in a semi-arid grassland

Ecological Indicators
The arthropod communities are important component in grassland ecosystems and are largely affected by management. However, the information on the effects of different grassland management on ground-dwelling predatory arthropods are very limited ...
Yadong Wang, Jianwei Cheng, Siguleng Wuji, Haoxin Li, Yanan Wang, Jingpeng Guo, Xinmin Liu, Frank Yonghong Li   +7 more
doaj   +1 more source

Catechol Derivative‐Based Bioadhesives: Molecular Design for Precision Medical Adhesion

Advanced Science, EarlyView.
This study utilizes tree‐inspired side‐chain engineering to graft five catechol derivatives onto PVA, systematically revealing how side‐chain length and substituents regulate adhesion and cohesion properties. Among them, the PVA‐CA patch demonstrates superior tissue adhesion, biocompatibility, and promotes regeneration, establishing a programmable ...
Xueyu Wang, Zixin Yang, Shan Wang, Weiwei Tan, Zhirui He, Qinyu Duan, Huanan Wang, Tao Chen, Shanshan Hu   +8 more
wiley   +1 more source

Pastor.i: a smartphone application to facilitate grazing management [PDF]

, 2018
Grazing in extensive beef farming systems is often manage in an empirical way based on past experience and on the visual appreciation of animal behavior and forage potential. Records of entrances and exits of the animals in the paddocks are rare. However,
Cancela d'Abreu, Manuel, Ferraz-de-Oliveira, Maria Isabel, Rato, Luís Miguel, Sales-Baptista, Elvira, Salgueiro, Pedro   +4 more
core  

Photochemical Control of Perovskite Crystal Formation at Room Temperature

Advanced Science, EarlyView.
The authors demonstrate how ultraviolet (UV) light can enable the crystallization of two‐dimensional (2D) perovskite crystals that are otherwise difficult to grow using conventional thermal methods. These findings are supplemented with a detailed mechanistic description for the interaction of the UV irradiation with the perovskite precursor components.
Magdalena Breitwieser, Lukas E. Lehner, Julius Feigl, Lukas M. Rescher, Julia Felicitas Schwarz, Felix Mayr, Munise Cobet, Bekele Hailegnaw, Christoph Putz, Clemens Schwarzinger, Markus Clark Scharber, Markus Himmelsbach, Bert Nickel, Stepan Demchyshyn, Martin Kaltenbrunner   +14 more
wiley   +1 more source

Impact of forest management regimes on ligneous regeneration in the Sudanian savanna of Burkina Faso [PDF]

, 2007
Annual early fire, selective tree cutting and grazing exclusion are currently used to manage the State forests of the Sudanian savanna of Burkina Faso, West Africa. Such prescriptions, however, are not based on experimental evidence.
Zida, Didier
core  

Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable n‐Doped Organic Semiconductors

Advanced Electronic Materials, EarlyView.
A novel n‐dopant, phosphazenium tetrafluoroborate (P2BF4), is introduced for efficient n‐doping in N2200, P(PzDPP‐CT2) and other organic semiconductors (OSCs). P2BF4‐doped OSC films exhibit exceptional thermal stability, maintaining electrical conductivity after heating at > 150 °C for 24 h. This stability allows organic thermoelectric devices based on
Huan Wei, Jing Guo, Heng Liu, Tong Wu, Ping‐An Chen, Chuanding Dong, Shu‐Jen Wang, Stefan Schumacher, Yugang Bai, Ting Lei, Suhao Wang, Yuanyuan Hu   +11 more
wiley   +1 more source