Results 51 to 60 of about 5,434,370 (298)

Advances of 3D bioprinting technology for periodontal tissue regeneration

open access: yesiScience
Summary: 3D bioprinting technology for periodontal tissue regeneration is an advanced manufacturing technique that utilizes three-dimensional (3D) printing principles to fabricate intricate, viable structures that are specifically devised to meet with ...
Huanhuan Chen   +9 more
doaj   +1 more source

MP 2004-09 [PDF]

open access: yes, 2004
The behavior of carbon in northern ecosystems and effects related to warming are under study at the School of Natural Resources and Agricultural Sciences, University of Alaska ...
Fitzgerald, Doreen
core  

Biodiversity As An Ecological Safety Condition. The European Dimension [PDF]

open access: yes, 2015
The main purpose of the paper is to indicate the theoretical bases of biodiversity protection from the perspective of the natural and economic sciences, and to describe the diversity of biodiversity protection levels in the EU states.
Rzeńca, Agnieszka
core   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Layer-by-layer coated probiotics with tannic acid-Ca2+ and casein phosphopeptide complexes for caries prevention and enamel remineralization

open access: yesiScience
Summary: Dental caries is a common disease resulting from tooth demineralization caused by bacterial plaque. Probiotics have shown great potential against caries by regulating the balance of oral flora.
Ming-Xin Cao   +7 more
doaj   +1 more source

Response Functions to Critical Shocks in Social Sciences: An Empirical and Numerical Study

open access: yes, 2004
We show that, provided one focuses on properly selected episodes, one can apply to the social sciences the same observational strategy that has proved successful in natural sciences such as astrophysics or geodynamics. For instance, in order to probe the
B. M. ROEHNER   +19 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Recent progress in Si/Ti3C2Tx MXene anode materials for lithium-ion batteries

open access: yesiScience
Summary: Cardiovascular diseases (CVDs) are a major global health issue, causing significant morbidity and mortality worldwide. Early diagnosis and continuous monitoring of physiological signals are crucial for managing cardiovascular diseases ...
Xinyu Jiang   +6 more
doaj   +1 more source

Epistemolojik Katmanlar: 18. Yüzyıl Ortası Avrupa Kültürü Örneği Üzerine Kültürel Paradigmalardaki Değişimlerin Analizi [PDF]

open access: yes, 2019
Before this study, the author was tasked with identifying general tendencies of changes in values and dominant ideas in all spheres of cognition. During the study different branches of knowledge of one period and one civilization area are compared.
Шепетяк, Олег Михайлович
core  

AAA+ protein unfoldases—the Moirai of the proteome

open access: yesFEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

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