Results 11 to 20 of about 38,024 (237)
Ugi multicomponent reaction to prepare peptide–peptoid hybrid structures with diverse chemical functionalities [PDF]
, 2018 Monodisperse sequenced peptides and peptoids present unique nano-structures based on their self-assembled secondary and tertiary structures. However, the generation of peptide and peptoid hybrid oligomers in a sequence-defined manner via Ugi ...
Azevedo, Helena S. +12 more
core +3 more sources
Highly Stereoselective Ugi/Pictet–Spengler Sequence [PDF]
The Journal of Organic Chemistry, 2022 Discovering novel synthetic routes for rigid nitrogen-containing polyheterocycles using sustainable, atom-economical, and efficient (= short) synthetic pathways is of high interest in organic chemistry. Here, we describe an operationally simple and short synthesis of the privileged scaffold dihydropyrrolo[1,2-a]pyrazine-dione from readily accessible ...
Bidong Zhang +2 more
openaire +4 more sources
Life-cycle-thinking in the assessment of urban green infrastructure: systematic scoping review
Environmental Research Letters, 2023 Urban green infrastructure (UGI) delivers multiple social, environmental and economic benefits. A life cycle thinking (LCT) approach is proposed as a viable methodological basis for the holistic valuation of UGI.
Linda Romanovska +2 more
doaj +1 more source
Family History and Risk of Upper Gastrointestinal Cancer in the Linxian General Population
Frontiers in Oncology, 2021 ObjectiveThe objective of this study was to investigate family history (FH) of upper gastrointestinal (UGI) cancer and risk of esophageal squamous cell carcinoma (ESCC), gastric cardia carcinoma (GCC), and gastric non-cardia carcinoma (GNCC) in the ...
Huan Yang +5 more
doaj +1 more source
Environmental Systems Research, 2020 Many studies have been conducted on the challenges underpinning the depletion and inaccessibility of urban green infrastructures (UGI) in cities of developed countries.
Sileshi Azagew, Hailu Worku
doaj +1 more source
China’s urban green innovation: Regional differences, distribution dynamics, and convergence
Chinese Journal of Population, Resources and Environment, 2023 Urban green innovation (UGI) is essential to environmental protection, ecological conservation, and high-quality economic growth. Using green patents, our study assessed the level of UGI of 287 Chinese cities at and above the prefecture level.
Yuting Xue +3 more
doaj +1 more source
Q&A: What are pathogens, and what have they done to and for us?
BMC Biology, 2017 Microbes are found on us, within us and around us. They inhabit virtually every environment on the planet and the bacteria carried by an average human, mostly in their gut, outnumber human cells. The vast majority of microbes are harmless to us, and many
Francois Balloux, Lucy van Dorp
doaj +1 more source
Vedolizumab Induces Remission in Two Cases of Ulcerative Colitis With Upper Gastrointestinal Involvement. [PDF]
DEN OpenABSTRACT Ulcerative colitis (UC) predominantly affects the colon; upper gastrointestinal involvement (UGI) has been reported, but no established treatments exist. We report two cases of UC with concomitant UGI that showed positive responses to vedolizumab therapy.
Nakatani S +9 more
europepmc +2 more sources
Espiral, 2019 La Ciudad de México constituye una vasta concentración de fuerza de trabajo y medios de producción que representa una formidable capacidad de extracción de ganancias, y requiere de una compleja gestión para su control. En los últimos años, la batalla por
Adrián Flores
doaj +1 more source
Architecturally diverse proteins converge on an analogous mechanism to inactivate Uracil-DNA glycosylase [PDF]
, 2013 Uracil-DNA glycosylase (UDG) compromises the replication strategies of diverse viruses from unrelated lineages. Virally encoded proteins therefore exist to limit, inhibit or target UDG activity for proteolysis.
A. R. Cole +39 more
core +1 more source