Results 121 to 130 of about 36,931 (242)

The Integrating Factors for Riccati and Abel Differential Equations

Journal of Mathematics Research, 2015
We can recast the Riccati and Abel differential equationsinto new forms in terms of introduced integrating factors.Therefore, the Lie-type systems endowing with transformation Lie-groups$SL(2,{\mathbb R})$ can be obtained.The solution of second-order linearhomogeneous differential equation is an integrating factorof the corresponding Riccati ...
openaire   +2 more sources

Differential segment‐specific signalling pathways for guanylate cyclase C‐activated anion secretion in murine ileocolon

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Guanylate cyclase‐C (GC‐C) is the receptor for endogenous (uro)guanylin peptides, bacterial toxins and pharmacological analogues. Receptor activation leads to intestinal fluid loss, but also activates an antiproliferative pathway and is a promising target in colorectal cancer therapy.
Renjie Xiu, Johannes Reiner, Franz Hofmann, Azam Salari, Ursula Seidler   +4 more
wiley   +1 more source

Allocative efficiency and the productivity slowdown

Canadian Journal of Economics/Revue canadienne d'économique, EarlyView.
Abstract This paper evaluates the contribution of cross‐sector allocative efficiency to the productivity slowdown in the US during the 1970s and 2000s. We extend the framework of Oberfield (2013) to derive sufficient statistics for allocative efficiency and decompose aggregate productivity growth in a multisector economy.
Lin Shao, Rongsheng Tang
wiley   +1 more source

Brain Drain and Productivity Growth: Evidence From South Africa, 1947–2019

Economics of Transition and Institutional Change, EarlyView.
ABSTRACT This paper provides empirical evidence of how high‐level human capital outflow could affect TFP‐based economic development and vice versa. The concern of potential endogeneity between brain drain and economic development is addressed directly.
Johannes Fedderke, Xiaodi Dong
wiley   +1 more source

Comparing Methods for Measuring Predation: Toward a Quantitative–Informative Indicator of Natural Pest Control

Entomologia Experimentalis et Applicata, EarlyView.
Predation methods vary widely in their ability to quantify biological control. Estimating predation rates (the number of prey killed per predator per time unit) is crucial. Combining predation rates with predator abundance yields real‐time field estimates of pests consumed.
Yann Tricault, Abel Masson, Sylvain Poggi, Elsa Canard, Manuel Plantegenest   +4 more
wiley   +1 more source

An Abel type cubic system

Electronic Journal of Differential Equations, 2015
We consider center conditions for plane polynomial systems of Abel type consisting of a linear center perturbed by the sum of 2 homogeneous polynomials of degrees n and 2n-1 where $n \ge 2$.
Gary R. Nicklason
doaj  

SARS‐CoV‐2 nucleocapsid protein variants have differential RNA chaperone activity

The FEBS Journal, EarlyView.
The SARS‐CoV‐2 nucleocapsid (N) protein facilitates RNA annealing through its RBD–IDR2–CTD region, identifying it as a functional RNA chaperone. The Omicron BA.5 variant shows reduced chaperone activity compared to the Wuhan wild‐type protein. Although phosphorylation has no effect on wild‐type N, phosphomimetic modification of BA.5 N restores its RNA ...
Sabrina Babl, Julia M. Seidel, Fabian Kugler, Elisabeth Silberhorn, Anna Ludwig, Jonas Abel, Sophia Winklbauer, Niklas Schaub, Silvia Materna‐Reichelt, Kamran Honarnejad, Nataša Stojanović Gužvić, Gernot Längst   +11 more
wiley   +1 more source

Limit cycles for $Z_{2n}$-equivariant systems without infinite equilibria

Electronic Journal of Differential Equations, 2016
We analyze the dynamics of a class of $\mathbb{Z}_{2n}$-equivariant differential equations of the form $\dot{z}=pz^{n-1}\bar{z}^{n-2}+sz^{n}\bar{z}^{n-1}-\bar{z}^{2n-1}$, where z is complex, the time t is real, while p and s are complex parameters ...
Isabel S. Labouriau, Adrian C. Murza
doaj  

Financial Statement Information and Equity Value: The Role of Real Options Characteristics

Financial Management, EarlyView.
ABSTRACT This paper examines whether firm‐specific real options characteristics are equity value‐relevant beyond valuation estimates anchored in financial statements. Using extensive historical data for the United Kingdom, we assess and compare the forecast accuracy and explanatory power for stock prices of equity valuation models based on residual ...
Mingyu (Chandler) Chen, Colin Clubb, Tarik Driouchi   +2 more
wiley   +1 more source

Exploring a Subpopulation of MASLD Associated With New Onset of CKD Using Supervised Clustering Techniques

Hepatology Research, EarlyView.
The supervised clustering of metabolic dysfunction‐associated steatotic liver disease (MASLD) using a SHapley Additive exPlanations (SHAP)‐converted matrix reveals distinct subpopulations that improved risk stratification for new onset of chronic kidney disease (CKD).
Itaru Hosaka, Marenao Tanaka, Tatsuya Sato, Yukinori Akiyama, Keitaro Nishizawa, Rie Matsumori, Hiroki Aida, Wataru Kawaharata, Kei Nakata, Koki Abe, Toru Suzuki, Hidemichi Kouzu, Naoya Yama, Nagisa Hanawa, Masato Furuhashi   +14 more
wiley   +1 more source