Results 101 to 110 of about 410,858 (346)

Seasonally varying contributions to urban CO2 in the Chicago, Illinois, USA region: Insights from a high-resolution CO2 concentration and δ13C record

Elementa: Science of the Anthropocene, 2015
Understanding urban carbon cycling is essential given that cities sustain 54% of the global population and contribute 70% of anthropogenic CO2 emissions. When combined with CO2 concentration measurements ([CO2]), stable carbon isotope analyses (δ13C) can
Joel Moore, Andrew D. Jacobson
doaj   +1 more source

Cryo‐EM Structure Guided Engineering of Botulinum Neurotoxin A With Advanced Receptor Binding Affinity and Therapeutical Benefits

Advanced Science, EarlyView.
The butterfly unfolded wing in an open form structure of botulinum neurotoxin type A (BoNT/A) at physiological‐state was confirmed at 2.85 Å resolution by cryo‐electron microscopy (cryo‐EM). Structure‐guided protein engineering significantly enhanced the receptor‐binding affinity, therapeutic efficacy, and safety of the engineered toxin variants ...
Wenrui Wang, Zhaxi Zerang, Linjin You, Ziye Liu, Rong Nie, Fuwei Qi, Fenfen Gao, Chengmu Zhao, Wantong Ma, Jinghan He, Xiaoru Wang, Shanquan Wu, Bo Liu, Xinyao Liu, Dongsheng Lei, Dejuan Zhi, Dongsheng Wang   +16 more
wiley   +1 more source

Using Stable Carbon and Nitrogen Isotopes to Evaluate Parrotfish Diet

Annals of Tropical Research, 2013
With limited inconclusive data provided by gut content analysis, stable isotope analysis has recently emerged to validate trophic position and dietary intake. In this study, a dual isotope approach was used to reveal parrotfish feeding.
Maria Elisa B. Gerona, Florence C. Evacitas   +1 more
doaj   +1 more source

Hominin palaeoecology in Late Pliocene Malawi : first insights from isotopes (13C, 18O) in mammal teeth [PDF]

, 2011
Carbon-13 and oxygen-18 abundances were measured in large mammal skeletal remains (tooth enamel, dentine and bone) from the Chiwondo Beds in Malawi, which were dated by biostratigraphic correlation to ca. 2.5 million years ago.
Bocherens, Herv, Kullmer, Ottmar, Sandrock, Oliver, Schrenk, Friedemann   +3 more
core   +2 more sources

PET Imaging of Cardiac Inflammation in Viral Myocarditis Using a DPP4‐Targeted Probe

Advanced Science, EarlyView.
This study describes a DPP4‐targeted PET probe for imaging myocardial inflammation by selectively targeting activated immune cells. Derived from the clinically approved small‐molecule inhibitor linagliptin, the probe demonstrates favorable biodistribution with specific cardiac uptake in myocarditis.
Wanhao Gao, Wenzhu Hu, Du Tang, Xinxin Liu, Kun Yu, Lixia Feng, Minyu Liao, Wang Lin, Wenqiang Zhu, Sanjay Rajagopalan, Xiaoli Lan, Jixin Zhong, Dao Wen Wang, Dawei Jiang, Xiaoquan Rao   +14 more
wiley   +1 more source

Adaptation of resource acquisition and investment in resource acquiring tissues of Betula nana in response to climatic constraints

Global Ecology and Conservation
Several plant species have moved further north in their range in response to climatic shifts. This study aimed to investigate how leaf and root functional traits of B.
Joanna Mucha, Marcin Zadworny, Łukasz Walas, Ewa Mąderek, Anna Durska, Paulina Kościelniak-Wawro, Jacek Oleksyn, Andrzej M. Jagodziński, Louise H. Comas   +8 more
doaj   +1 more source

Life history traits of the fish community in Lake Annecy: evidence from the stable isotope composition of otoliths

Knowledge and Management of Aquatic Ecosystems, 2015
Stable isotope analysis (SIA) of fish otoliths shows great potential for exploring the ecology of fish, but this method has not been applied to the study of lacustrine fish communities.
Gerdeaux D., Dufour E.
doaj   +1 more source

Identification of secondary microbial methane and biodegradation: Case study from Luliang oil and gas field, Junggar Basin, China

Journal of Natural Gas Geoscience, 2019
The “secondary microbial gas” is defined as natural gas generated via the biodegradation of oil reservoirs. Since methane dominates, it is also called “secondary microbial methane”.
Deyu Gong, Yueqian Zhang, Wenjian Guo, Rui Qi, Shan Lu, Wei'an Wu   +5 more
doaj   +1 more source

Integrating effects of species composition and soil properties to predict shifts in montane forest carbon-water relations. [PDF]

, 2018
This study was designed to address a major source of uncertainty pertaining to coupled carbon-water cycles in montane forest ecosystems. The Sierra Nevada of California was used as a model system to investigate connections between the physiological ...
Horwath, William R, Maxwell, Toby M, Silva, Lucas CR   +2 more
core   +1 more source

Stabilization of Single Metal Atoms on Graphitic Carbon Nitride: Synthetic Strategies and Emerging Applications

Advanced Science, EarlyView.
This review highlights recent advancements in stabilizing single metal atoms on graphitic carbon nitride emphasizing innovative synthesis strategies and emerging applications in electrocatalysis, photocatalysis and organic transformations, along with key challenges and future perspective. Abstract Emerging as a new frontier in catalysis science, single‐
Wenyao Zhang, Junjie Cui, Zhenjie Yao, Boyuan Zhu, Nithinraj Panangattu Dharmarajan, Ajayan Vinu, Junwu Zhu   +6 more
wiley   +1 more source