Results 151 to 160 of about 105,471 (295)

Cyclic combing of untreated and bleached human hair: Analysis of the time‐dependent breakage of hair through recording the formation of fibre fragments

International Journal of Cosmetic Science, EarlyView.
One important aspect of daily hair grooming routines is whether, after combing, conspicuous numbers of broken hairs are observed. Machine‐based cyclic combing of hair tresses serves as a good indicator for early hair breakage and as a suitable measure to determine the effect of an ingredient/product/process on hair ‘strength’.
Thomas Davies, Gabriele Wortmann, Franz J. Wortmann   +2 more
wiley   +1 more source

New bounded unit Weibull model: Applications with quantile regression. [PDF]

PLoS One
Sapkota LP, Bam N, Kumar V.
europepmc   +1 more source

Pairwise Imitation and Tournament Graphs

International Economic Review, EarlyView.
ABSTRACT This paper investigates strategic dynamics under the behavioral rule of pairwise interact and imitate (PII), which requires minimal information and emphasizes outperforming opponents in pairwise interactions. We characterize PII using weak tournament graphs and, for a broad class of dynamics, establish a one‐shot stability result for ...
Sung‐Ha Hwang, Philip R. Neary, Jonathan Newton, Ryoji Sawa   +3 more
wiley   +1 more source

Survival analysis based on an enhanced Rayleigh-inverted Weibull model. [PDF]

Heliyon
Elgarhy M, Kayid M, Johannssen A, Elsehetry M.   +3 more
europepmc   +1 more source

Does Pay Transparency for Employees Affect Product Recalls?

Journal of Business Finance &Accounting, EarlyView.
ABSTRACT Pay transparency can affect workers’ behavior and, consequently, firm outcomes. This study exploits the state‐level, staggered enactment of pay transparency laws to examine how pay transparency affects firms’ product recalls. We find that firms headquartered in pay‐transparency‐law states see an increase in product recalls.
Yangyang Chen, Jeffrey Ng, Emmanuel Ofosu, Xin Yang   +3 more
wiley   +1 more source

An extended Rayleigh Weibull model with actuarial measures and applications. [PDF]

Heliyon
Elgarhy M, Johannssen A, Kayid M.
europepmc   +1 more source

When do Firms with New CEOs Engage in M&A? Understanding the Timing of New CEOs' First M&A Announcements

Journal of Management Studies, EarlyView.
Abstract New CEO appointments can create strategic uncertainty for stakeholders, potentially undermining the CEO's position. While the stakeholder uncertainty perspective suggests CEOs may act boldly to clarify their strategic intentions during early tenure, the CEO life cycle perspective proposes that CEOs avoid such moves during early tenure, as they
Marie‐Ann Betschinger, Caterina Moschieri, Olivier Bertrand, Mahmoud Aidli   +3 more
wiley   +1 more source

The development of an extended Weibull model with applications to medicine, industry and actuarial sciences. [PDF]

Sci Rep
Imran M, Alsadat N, Tahir MH, Jamal F, Elgarhy M, Ahmad H, Johannssen A.   +6 more
europepmc   +1 more source

Weibull frailty for modelling heterogeneity

, 2001
This thesis will investigate the effect of differing assumed frailty models on the corresponding estimated regression coefficients. The main purpose of the Cox model in survival analysis is to measure the effects of covariates by estimating their coefficients. Sometimes the covariates fail to fully account for the true differences in risk because there
openaire   +1 more source

Effect of resin type, cleaning solution, and aging on the mechanical properties and reliability of additively manufactured occlusal devices

Journal of Prosthodontics, EarlyView.
Abstract Purpose The purpose of this in vitro study was to investigate the effect of alcohol‐free cleaning solutions on the mechanical properties and reliability of additively manufactured occlusal device resins, compared with isopropyl alcohol (IPA), while considering the influence of aging.
Selim Polat, Ayyüce Nur Tezcan, Hanan Al‐Johani, Gülce Çakmak, Mustafa Borga Dönmez, Burak Yilmaz   +5 more
wiley   +1 more source