Results 151 to 160 of about 93,498 (290)

Plastid and nuclear phylogenomics of Cyphostemma (Vitaceae) provide new insights into genome size evolution across sub‐Saharan Africa

Journal of Integrative Plant Biology, EarlyView.
Some African Cyphostemma species evolved much larger genomes as they adapted to dry, rocky habitats. These expansions are linked to succulent traits and specialization on nutrient‐rich limestone outcrops. The findings show how climate‐driven aridification shaped plant evolution and highlight broader genome‐environment patterns across flowering plants ...
Rindra M. Ranaivoson, Romer N. Rabarijaona, Jin‐Ren Yu, Yi‐Chen You, Russell L. Barrett, Ju Zhou, Bing Liu, Wyckliffe Omondi Omollo, Chuan‐Yu Du, Da‐Ming Zhang, Mijoro Rakotoarinivo, Jie Cheng, Chao‐Bin Li, Yang Dong, Ilia J. Leitch, Alexandre Antonelli, Jun Wen, Zhi‐Duan Chen, Li‐Min Lu   +18 more
wiley   +1 more source

Financial Fragility and the Fiscal Multiplier

Journal of Money, Credit and Banking, EarlyView.
Abstract We show that undercapitalized banks with large holdings of government bonds subject to sovereign default risk lead to a new crowding‐out channel: deficit‐financed fiscal stimuli lead to higher bond yields, triggering capital losses for the banks. Banks then cut back loans, which reduces fiscal multipliers.
CHRISTIAAN VAN DER KWAAK, SWEDER VAN WIJNBERGEN   +1 more
wiley   +1 more source

Tests of fit for the power function lognormal distribution. [PDF]

PLoS One
Wang C, Zhu H.
europepmc   +1 more source

Effect of sintering cycle on the strength and translucency of multilayered zirconia

Journal of Prosthodontics, EarlyView.
Abstract Purpose A newly introduced sintering protocol promises to offer higher translucency while not significantly compromising the flexural strength of the material. However, the effect of the novel sintering protocol has not been thoroughly validated.
Kedith Sawangsri, Steven Makowka, Sompop Bencharit, Hyeongil Kim   +3 more
wiley   +1 more source

Analyzing Non‐Random Selectivity in Online Job Advertisements Using Eurostat Benchmark Data and Generalized Sample Selection Models: An Application to EU Regional Labor Markets

LABOUR, EarlyView.
ABSTRACT The present paper provides an overall framework to afford the problem of non‐representativeness and non‐random selectivity arising from online job ads data, using Generalized sample selection models and Eurostat benchmark data. We jointly model the outcome intensity (number of online job ads in observed profiles, whose levels are defined by ...
Pietro Giorgio Lovaglio, Mario Mezzanzanica   +1 more
wiley   +1 more source

Perpetual Futures Pricing

Mathematical Finance, EarlyView.
ABSTRACT Perpetual futures are contracts without expiration date in which the anchoring of the futures price to the spot price is ensured by periodic funding payments from long to short. We derive explicit expressions for the no‐arbitrage price of various perpetual contracts, including linear, inverse, and quantos futures in both discrete and ...
Damien Ackerer, Julien Hugonnier, Urban Jermann   +2 more
wiley   +1 more source

Bayesian Inference for Joint Estimation Models Using Copulas to Handle Endogenous Regressors

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT This study proposes a Bayesian approach for finite‐sample inference of the Gaussian copula endogeneity correction. Extant studies use frequentist inference, build on a priori computed estimates of marginal distributions of explanatory variables, and use bootstrapping to obtain standard errors. The proposed Bayesian approach facilitates precise
Rouven E. Haschka
wiley   +1 more source

Positive mixture effects in pine–oak forests during drought are context‐dependent

Plant Biology, EarlyView.
Mixture effects in drought‐stressed pine‐oak forests are context‐dependent, with Gambel oak and ponderosa pine benefiting from their complementarity under semi‐arid conditions. Abstract The increasing severity and frequency of droughts will play a pivotal role in shaping future forest ecosystems worldwide.
G. Schmied, J. Kappen, M. del Río, W. K. Moser, M. J. Gundale, T. Hilmers, D. Ambs, E. Uhl, H. Pretzsch   +8 more
wiley   +1 more source

Drawing Animals in the Paleolithic: The Effect of Perspective and Abbreviation on Animal Recognition and Aesthetic Appreciation

Topics in Cognitive Science, EarlyView.
Abstract The majority of Pleistocene figurative cave art in Western Europe consists of line drawings depicting large herbivores from the side view, and outlines were sometimes abbreviated to the head‐neck‐dorsal line. It is often assumed that the side view was used because it facilitates animal recognition compared to other views, and that abbreviated ...
Murillo Pagnotta, Mateusz Psujek, Larissa M. Straffon, Riccardo Fusaroli, Kristian Tylén   +4 more
wiley   +1 more source

Weak Nuclear Divergence Despite Pronounced Mitochondrial Divergence Within a Widespread Desert‐Inhabiting Palearctic Lark (Aves: Alaudidae)

Zoologica Scripta, EarlyView.
ABSTRACT The Bar‐tailed Lark Ammomanes cinctura is a polytypic bird species with a wide distribution. One of its three subspecies, A. c. arenicolor, has previously been found to show deep mitochondrial divergence between its geographically most distant populations, from Morocco and Saudi Arabia, respectively.
Zongzhuang Liu, Silvia Colombo, Loïs Rancilhac, Arya Shafaeipour, Ali Haghani, B. Irene Tieleman, Pierre‐André Crochet, Alban Guillaumet, Urban Olsson, Per Alström   +9 more
wiley   +1 more source