Results 71 to 80 of about 955,121 (302)

Carbon-13 in groundwater from English and Norwegian crystalline rock aquifers: a tool for deducing the origin of alkalinity? [PDF]

, 2017
The 13C signature is evaluated for various environmental compartments (vegetation, soils, soil gas, rock and groundwater) for three crystalline rock terrains in England and Norway.
Banks, David, Bottrell, Simon, Frengstad, Bjørn S., Hipkins, Emma V., Lane, James M., Zegos, Rose A.   +5 more
core   +1 more source

Identification of serum protein biomarkers for pre‐cancerous lesions associated with pancreatic ductal adenocarcinoma

Molecular Oncology, EarlyView.
This work identified serum proteins associated with pancreatic epithelial neoplasms (PanINs) and early‐stage PDAC. Proteomics screens assessed genetically engineered mice with abundant PanINs, KPC mice (Lox‐STOP‐Lox‐KrasG12D/+ Lox‐STOP‐Lox‐Trp53R172H/+ Pdx1‐Cre) before PDAC development and also early‐stage PDAC patients (n = 31), compared to benign ...
Hannah Mearns, Jaclyn S. Long, Sergio Lilla, Kelly Hodge, Marcus J. G. W. Ladds, Colin Nixon, Paula Fernández‐Palanca, Sara Zanivan, Pilar Acedo, Stephen P. Pereira, Kevin M. Ryan   +10 more
wiley   +1 more source

Carbon footprints of 13 000 cities

Environmental Research Letters, 2018
While it is understood that cities generate the majority of carbon emissions, for most cities, towns, and rural areas around the world no carbon footprint (CF) has been estimated.
Daniel Moran, Keiichiro Kanemoto, Magnus Jiborn, Richard Wood, Johannes Többen, Karen C Seto   +5 more
doaj   +1 more source

Determination of total and non-carbonate carbon in rock samples by a method using infrared absorption [PDF]

Bulletin of the Geological Society of Finland, 1990
Total and non-carbonate carbon were determined by a method using infrared absorption in 20 international geological reference samples, 13 in-house reference samples and 13 other rock samples.
R.J. Saikkonen, I.A. Rautiainen
doaj   +1 more source

SPINSTARS at low metallicities

, 2007
The main effect of axial rotation on the evolution of massive PopIII stars is to trigger internal mixing processes which allow stars to produce significant amounts of primary nitrogen 14 and carbon 13.
Chiappini, C., Ekstrom, S., Georgy, C., Hirschi, R., Maeder, A., Meynet, G.   +5 more
core   +1 more source

Hyperpolarized 13C-pyruvate MRI detects real-time metabolic flux in prostate cancer metastases to bone and liver: a clinical feasibility study. [PDF]

, 2020
BackgroundHyperpolarized (HP) 13C-pyruvate MRI is a stable-isotope molecular imaging modality that provides real-time assessment of the rate of metabolism through glycolytic pathways in human prostate cancer.
Aggarwal, Rahul, Bok, Robert A, Carvajal, Lucas, Chen, Hsin-Yu, Gordon, Jeremy W, Kurhanewicz, John, Larson, Peder EZ, Lee, Philip, Ohliger, Michael A, Slater, James B, Small, Eric J, van Criekinge, Mark, Vigneron, Daniel B, Zhu, Zi   +13 more
core  

Transcriptional profiling of circulating extracellular vesicles from prebiopsy prostate cancer patients

Molecular Oncology, EarlyView.
RNA profiling of circulating extracellular vesicles (EVs) from blood samples of men undergoing prostate biopsy identifies transcripts associated with clinically significant prostate cancer. Integrative analysis with public tumor datasets links EV‐derived gene signatures to tumor stage and progression‐free survival, highlighting CASP3, XRCC2, and RIT1 ...
Stefan Werner, Pierre Tennstedt, Randi C. Pose, Christian Müller, Katharina Besler, Svenja Schneegans, Malik Alawi, Marie C. Roesch, Sven Peine, Desiree Bonci, Joanna Budna‐Tukan, Evi Lianidou, Catherine Alix‐Panabières, Derya Tilki, Klaus Pantel   +14 more
wiley   +1 more source

Simultaneous quantitative determination of deuterium- and carbon-13-labeled essential fatty acids in rat plasma

Journal of Lipid Research, 2005
This study reports methods for the quantitative determination of stable isotope-labeled essential fatty acids (EFAs) as well as an experiment in which deuterium-labeled linoleic acid (18:2n-6) and α-linolenic acid (18:3n-3) were compared with those ...
Yu Hong Lin, Robert J. Pawlosky, Norman Salem, Jr.   +2 more
doaj   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

Scanning Electron Microscopy and Atomic Force Microscopy: Topographic and Dynamical Surface Studies of Blends, Composites, and Hybrid Functional Materials for Sustainable Future

Advances in Materials Science and Engineering, 2019
Microscopic techniques are often used in material science, enabling the assessment of the morphology, composition, physical properties, and dynamic behaviour of materials.
Joanna Rydz, Alena Šišková, Anita Andicsová Eckstein   +2 more
doaj   +1 more source