Results 71 to 80 of about 89,053,417 (296)
Time-varying market reactions to global uncertainties: an analysis of selected stock markets
Cogent Economics & FinanceThis study examines time-varying volatility spillovers between global stock markets and major uncertainty indices using Diebold–Yilmaz (DY) and Baruník–Křehlík (BK) connectedness frameworks within a time-varying parameter VAR (TVP-VAR) model.
Emmanuel Enya +2 more
doaj +1 more source
, 1997 Operations management is a subject whose content, boundaries and importance have changed considerably over the last few years. The development of new areas such as total quality management (TQM), just in time (JIT), benchmarking and manufacturing ...
Twigg, David, David Twigg (16059509)
core
Advanced Functional Materials, EarlyView.Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez +9 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley +1 more source
California Agriculture, 1952 Californians pay between five and seven million dollars annually for 2½ million Christmas trees.
W Metcalf, R Grah
doaj
A new denoising approach based on mode decomposition applied to the stock market time series: 2LE-CEEMDAN [PDF]
PeerJ Computer ScienceTime series, including noise, non-linearity, and non-stationary properties, are frequently used in prediction problems. Due to these inherent characteristics of time series data, forecasting based on this data type is a highly challenging problem.
Zinnet Duygu Akşehir, Erdal Kılıç
doaj +2 more sources
Acetoacetates Derived From Vegetable Oils: A Platform for Tailor‐Made Vinylogous Urethane Foams
Advanced Functional Materials, EarlyView.A renewable vegetable oil is converted into acetoacetate‐functionalized precursors for the preparation of catalyst‐free vinylogous urethane foams. Room‐temperature foaming with n‐pentane generates lightweight cellular materials, while the choice of amine enables control over foam structure and mechanical properties.
Krzysztof Polaczek +8 more
wiley +1 more source
Electron‐Deficient Linkers Enhance H2O2 Electrosynthesis in Covalent Organic Frameworks
Advanced Functional Materials, EarlyView.Linker π‐conjugation modulates the electronic state of the Ni–N4 centers and their interaction with the key *OOH intermediate while preserving the primary coordination motif. NiPc‐PTDA delivers an H2O2 selectivity of 92% and a production rate of 34.8 mol gcat−1 h−1, highlighting linker electronic properties as a molecular design parameter for NiPc ...
Houting Xie +7 more
wiley +1 more source
MathematicsThis study explores market efficiency and behavior by integrating key theories such as the Efficient Market Hypothesis (EMH), Adaptive Market Hypothesis (AMH), Informational Efficiency and Random Walk theory.
Darko B. Vuković +4 more
doaj +1 more source
EPJ Web of Conferences, 2017 Increased demand in internet of thing (IOT) application based has inadvertently forced the move towards higher complexity of integrated circuit supporting SoC.
Muhammad Nurul Zhafirah +6 more
doaj +1 more source