Results 151 to 160 of about 9,550 (296)

Simulated Trampling Disturbance Alters Biocrust Microbial Communities and Soil Functions: A Container‐Based Mesocosm Experiment

Land Degradation &Development, EarlyView.
ABSTRACT Biological soil crusts (biocrusts) are crucial components of dryland ecosystems; however, they are highly vulnerable to anthropogenic disturbances, particularly trampling caused by grazing. To evaluate the impacts of trampling on biocrust structure, microbial communities, and soil functions, we conducted a mesocosm‐based simulated disturbance ...
Lu Chen, Yue Li, Chengrong Peng, Zongqi Liu, Yuxi Duan, Li Wu, Shubin Lan   +6 more
wiley   +1 more source

Species‐Specific Shrub Encroachment Drives Divergent Soil Fungal Assembly Processes and Network Structures in Alpine Meadows

Land Degradation &Development, EarlyView.
ABSTRACT Shrub encroachment is rapidly transforming alpine meadow ecosystems worldwide, yet its consequences for belowground microbial organization remain insufficiently understood, particularly when different shrub species exert contrasting ecological effects.
Yang Liu, Hong Xiao, Yuping Rong, Kuiju Niu, Kai Ma, Yun Wang, Xin Zhang, Linqian Song   +7 more
wiley   +1 more source

Is DNA metabarcoding an option for formaldehyde‐preserved zooplankton time series?

Limnology and Oceanography: Methods, EarlyView.
Abstract The recovery of amplifiable DNA from formaldehyde‐fixed (FF) zooplankton samples has long been considered problematic, but advances in degraded‐DNA retrieval have renewed interest in FF samples. To access the information stored in long‐term zooplankton time series, we evaluated methods for extracting amplifiable DNA from community samples ...
Aitor Albaina, Anders Lanzén, Irati Miguel, Fernando Rendo, María Santos   +4 more
wiley   +1 more source

Field fluorometer and injection device for gauging streams with fast variations

Revista Águas Subterrâneas, 2013
When it is desired to measure the temporal evolution of the flow of a river in torrential, kinematic methods (reel, electromagnetic current meter) are not appropriate, because of turbulent flow types.
Pierre André Schnegg
doaj  

Host–Dopant Engineering of Ce4+‐Dominant Y3(Al,Ga)5O12:Ce,Mg Scintillators for High‐Performance X‐Ray Imaging

Laser &Photonics Reviews, EarlyView.
Mg2+ co‐doping strongly suppresses defect‐related emission and luminescence from trace impurities. Moreover, Mg2+ co‐doping improves the scintillation performance of Y3Al3Ga2O12:Ce by increasing the light yield and accelerating the decay time.
Hisato Suezumi, Kei Kamada, Karol Bartosiewicz, Masao Yoshino, Liudmila Gushchina, Vladimir Babin, Yevheniia Smortsova, Nadiya Zhutova, Vladimir Pankratov, Alena Beitlerova, Martin Nikl, Kohei Nakanishi, Rikito Murakami, Satoshi Ishizawa, Yuui Yokota, Akira Yoshikawa   +15 more
wiley   +1 more source

Habitual Diet, Gut Microbiome Dysbiosis, and α‐Synucleinopathy Conversion in Isolated Rapid Eye Movement (REM) Sleep Behavior Disorder

Movement Disorders, EarlyView.
Abstract Background Accumulating evidence indicates that habitual diet, including plant‐based dietary patterns, is associated with neurodegenerative α‐synucleinopathy risk. However, the role of diet and its correlation with the gut microbiome in prodromal α‐synucleinopathy, specifically among patients with isolated rapid eye movement (REM) sleep ...
Suyi Xie, Yuhua Yang, Shi Tang, Li Zhou, Jing Wang, Joey W.Y. Chan, Brian Or, Ningning Li, Siyi Gong, Zhixuan He, Jianzhang Ni, Yaping Liu, Jihui Zhang, Paul K.S. Chan, Zigui Chen, Sunny Hei Wong, Vincent C.T. Mok, Ngan Yin Chan, Steven W.H. Chau, Yun Kwok Wing, Bei Huang   +20 more
wiley   +1 more source

Trace organic chemical detection using an ultraviolet excitation molecular beam fluorometer

, 1993
Detection of air-borne environmental contaminants, such as organic solvents, requires unambiguous compound identification and sensitivity to concentrations below those permitted by regulating agencies.
Hargis, P. J., Preppernau, B. L.
core  

Trait convergence under warming: drought tolerance, not thermal limits, mediates native–invader dynamics in alpine ecosystems

Oikos, EarlyView.
Climate warming and plant invasions jointly alter alpine ecosystems, but the mechanisms underlying these interactions remain unclear. A key to predicting ecosystem vulnerability is whether native and invasive species can sustain performance as conditions warm.
Indira V. Leon‐Garcia, Julie R. Deslippe   +1 more
wiley   +1 more source

Evaluation of Enamel Surface Characteristics During Debonding Procedures Using a Scanning Laser Fluorometer

, 1996
Debonding involves the removal of the orthodontic attachment and residual resin on the tooth surface. Presently, there is a lack of agreement on an ideal debonding procedure.
Smith, Allen Drew
core  

Biosurfactant production by Pseudomonas aeruginosa isolated from mining waste: From genomic analysis to development of a polymeric composite for removal of hexavalent chromium

Polymer International, EarlyView.
Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco, Emilly Cruz da Silva, Glenda Sores Gomes, Joane Almeida Alves, Amanda Vidal, Leandro Argolo, Rafaela Ribeiro, Luciana Souza, José Augusto Pires Bitencourt, Leonardo Brasil Felipe, Leonie Asfora Sarubbo, Sidnei Cerqueira dos Santos   +11 more
wiley   +1 more source