Results 71 to 80 of about 138,612 (280)

Dynamic Connectedness between Sector Indices: Evidence from Borsa Istanbul

open access: yesEskişehir Osmangazi Üniversitesi İktisadi ve İdari Bilimler Dergisi, 2021
The aim of the study is to analyze the shock and volatility spillover between BIST Finance, Industry, Technology, Tourism, Transportation, Food, and Retail-Trade sectors. In this direction, daily data obtained between January 5, 2010, and December 4, 2020, were analyzed using a new method named TVP-VAR Diebold Yılmaz Spillover Index developed by ...
Ramazan EKİNCİ   +1 more
openaire   +3 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Dynamic spillovers between the term structure of interest rates, bitcoin, and safe-haven currencies

open access: yesFinancial Innovation, 2021
This study examines the connectedness between the US yield curve components (i.e., level, slope, and curvature), exchange rates, and the historical volatility of the exchange rates of the main safe-haven fiat currencies (Canada, Switzerland, EURO, Japan,
David Y. Aharon   +2 more
doaj   +1 more source

Abstract mechanical connection and Abelian reconstruction for almost Kähler manifolds [PDF]

open access: yes, 2001
When the phase space P of a Hamiltonian G-system (P,ω,G,J,H) has an almost Kähler structure a preferred connection, called abstract mechanical connection, can be defined by declaring horizontal spaces at each point to be metric orthogonal to the tangent ...
Marsden, Jerrold E., Pekarsky, Sergey
core   +3 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

Artificial intelligence and clean/dirty energy markets: tail-based pairwise connectedness and portfolio implications

open access: yesFuture Business Journal
This study investigates the return and volatility connectedness between artificial intelligence (AI) stock ETF and each segment of the energy markets, namely clean energy, dirty energy, and WTI oil.
Bechir Raggad, Elie Bouri
doaj   +1 more source

The Influence of Financial Stress on Dynamic Connectedness between Fossil Energy Commodities and Green Energy Markets

open access: yesEkonomi, Politika & Finans Araştırmaları Dergisi
This paper aims to examine the impacts of selected stress variables, such as FSI (Financial Stress Index), VIX (Volatility Index), and EPU (Economic Policy Uncertainty), on dynamic connectedness between green markets (stocks and bonds) and fossil energy ...
Dilvin Taşkın   +3 more
doaj   +1 more source

The Human–Nature Relationship and Its Impact on Health: A Critical Review [PDF]

open access: yes, 2016
Within the past four decades, research has been increasingly drawn toward understanding whether there is a link between the changing human–nature relationship and its impact on people’s health.
Adger   +138 more
core   +3 more sources

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

Dual targeting of RET and SRC synergizes in RET fusion‐positive cancer cells

open access: yesMolecular Oncology, EarlyView.
Despite the strong activity of selective RET tyrosine kinase inhibitors (TKIs), resistance of RET fusion‐positive (RET+) lung cancer and thyroid cancer frequently occurs and is mainly driven by RET‐independent bypass mechanisms. Son et al. show that SRC TKIs significantly inhibit PAK and AKT survival signaling and enhance the efficacy of RET TKIs in ...
Juhyeon Son   +13 more
wiley   +1 more source

Home - About - Disclaimer - Privacy