Results 81 to 90 of about 643,110 (307)
Structural Breaks in the Cointegrated Vector Autoregressive Model [PDF]
We generalize the cointegrated vector autoregressive model of Johansen (1988, 1991) to allow for structural breaks. We derive the likelihood ratio test for structural breaks occurring at fixed points in time, and show that it is asymptotically chi ...
Peter Reinhard Hansen
core
Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control
FEBS Open Bio, EarlyView.Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada +5 more
wiley +1 more source
Journal of Smart Economic Growth, 2020 The East African Community (EAC) countries including Burundi, Kenya, Rwanda and Uganda, have implemented financial sector reforms leading to financial development.
Gertrude Muwanga
doaj
Apstract: Applied Studies in Agribusiness and Commerce, 2018 This article analyses grain production and prices 1961-2014. We first describe the development in aggregated and relative allocation of land worldwide for wheat, corn and soybeans, and the growth in production volumes and yields.
Torun Fretheim
doaj +1 more source
Cointegration Analysis in the Presence of Structural Breaks in the Deterministic Trend [PDF]
When analysing macro economic data it is often of relevance to allow for structural breaks in the statistical analysis. In particular cointegration analysis in the presence of structural breaks could be of interest.
Bent Nielsen
core
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 +4 more
wiley +1 more source
Poland–USA sectoral trade balances: regime shifts and the nonlinear impact of currency fluctuations [PDF]
Central European Management JournalPurpose – The Polish economy has undergone major challenges and changes over the past few decades. The country's trade flows, in particular, have become more firmly tied to the country’s Western neighbors as they have grown in volume. This study examines
Izabela Pruchnicka-Grabias +2 more
doaj +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective People with epilepsy (PWE) may experience cognitive deficits but fail to undergo formal evaluation. This study compares cognitive status between PWE and healthy controls in the West African Republic of Guinea. Methods A cross‐sectional, case–control study was conducted in sequential recruitment phases (July 2024–July 2025) at Ignace ...
Maya L. Mastick +14 more
wiley +1 more source
How Costly is it to Ignore Breaks when Forecasting the Direction of a Time Series? [PDF]
Empirical evidence suggests that many macroeconomic and financial time series are subject to occasional structural breaks. In this paper we present analytical results quantifying the effects of such breaks on the correlation between the forecast and the ...
Allan Timmermann, M. Hashem Pesaran
core
Detecting structural breaks in seasonal time series by regularized optimization
, 2015 Real-world systems are often complex, dynamic, and nonlinear. Understanding the dynamics of a system from its observed time series is key to the prediction and control of the system's behavior.
Motter, Adilson E., Sun, Jie, Wang, Bing
core +1 more source