Results 31 to 40 of about 21,316,325 (305)

The demographic and economic features: the nexus with internet use

Heliyon, 2022
The goal of this study was to examine the nexus between demographic dividend type and economic features with internet use. The data source was from the World Development Indicator of the World Bank. The unit analysis was country.
Wilson Rajagukguk
doaj   +1 more source

A convenient method for the estimation of the multinomial logit model with fixed effects [PDF]

Economics Letters, 2016
Abstract The conditional maximum likelihood estimator of the fixed-effect logit model suffers from a curse of dimensionality that may have severely limited its use in practice. As the number of alternatives and the number of choice situations per individual increase, the number of addends in the denominator of the fixed-effect logit formula grows ...
Iaria, Alessandro, D’Haultfœuille, Xavier   +1 more
openaire   +3 more sources

Does agricultural mechanization promote green development? evidence from an entropy-weighted provincial panel in China (2011–2023)

International Journal of Agricultural Sustainability
While agricultural mechanization is central to rural transformation in China, its ecological implications remain unclear. This study examines whether mechanization promotes agricultural green development or induces input-intensive ecological trade-offs ...
Cheng Yang, Jun Wen, Haifeng Shi, Guimei Huang   +3 more
doaj   +1 more source

Replication data for: Should I Use Fixed or Random Effects?

, 2014
Empirical analyses in social science frequently confront quantitative data that are clustered or grouped. To account for group-level variation and improve model fit, researchers will commonly specify either a fixed or random effects model.
Clark, Tom S., Linzer, Drew A.
core   +1 more source

Fixed-effects ANOVA results using points as the criterion.

, 2023
Fixed-effects ANOVA results using points as the criterion.
Molly E. Contini (17277205), Jeffrey R. Spence (3126936)   +1 more
core   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

A Penalized Profile Quasi-Likelihood Method for a Semiparametric Varying Coefficient Spatial Autoregressive Panel Model with Fixed Effects

Axioms
This paper proposes a variable selection method for a semiparametric varying coefficient spatial autoregressive panel model with fixed effects based on a penalized profile quasi-likelihood method, which can simultaneously select significant variables in ...
Ruiqin Tian, Miaojie Xia, Dengke Xu
doaj   +1 more source

Vibration Analysis of Aeroengine Blisk Structure Based on a Prestressed CMS Super-Element Method

Shock and Vibration, 2016
For vibration analysis of aeroengine blisk structure, a prestressed component modal synthesis (CMS) super-element method is put forward with the fixed interface prestressing and free interface super-element approach.
Zhijun Li, Wenjun Yang, Huiqun Yuan
doaj   +1 more source

A Semi-Analytical Nonlinear Approach for Size-Dependent Analysis of Longitudinal Vibration in Terms of Axially Functionally Graded Nanorods [PDF]

Mechanics of Advanced Composite Structures
In this paper, the size dependency of the nonlinear free longitudinal vibration of axially functionally graded (AFG) nanorods is studied using the nonlocal elasticity theory.
Reza Nazemnezhad
doaj   +1 more source