Results 91 to 100 of about 21,896 (225)

Gompertz-Weibull {Gompertz} Type I: A Four-Parameter Generalization of the Weibull Family

open access: yesJournal of Statistical Theory and Practice
AbstractIn this paper, we provide a construction method that provides greater flexibility in modeling real-world phenomenon by generalizing univariate probability distributions. The Gompertz distribution is used to provide new classes of models through T-X{Y} construction, in a manner we will define as a “proper” generalization, illustrated by ...
Scott Smith, Brenda Diaz-Martinez
openaire   +2 more sources

Depicting the Immunological Landscape of Basal Cell Carcinoma Subtypes

open access: yesJournal of Cutaneous Pathology, Volume 53, Issue 12, Page 1131-1141, December 2026.
ABSTRACT Background Anti‐PD‐1 response has been associated with higher PD‐1 ligand (PD‐L1) expression levels in different cancer types. Cemiplimab, an anti‐PD‐1 antibody, has been shown to induce a response rate of 31% and 22% in patients with locally advanced basal cell carcinoma (BCC) and metastatic BCC respectively, who have progressed or are ...
Isabella Dommann   +9 more
wiley   +1 more source

Population modeling of tumor growth curves and the reduced Gompertz model improve prediction of the age of experimental tumors.

open access: yesPLoS Computational Biology, 2020
Tumor growth curves are classically modeled by means of ordinary differential equations. In analyzing the Gompertz model several studies have reported a striking correlation between the two parameters of the model, which could be used to reduce the ...
Cristina Vaghi   +8 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, Volume 28, Issue 21, 4 November 2026.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

الاستنتاج الإحصائي لمدة البقاء لمصابي فيروس كورونا في مستشفيات العزل بمحافظة دمياط باستخدام عائلة جومبيرتز [PDF]

open access: yesالمجلة العلمية للدراسات والبحوث المالية والتجارية
يقدم هذا البحث تعميم جديد إستناداً إلي عائلة جومبيرتز ليكون التوزيع الجديد أكثر دقة وكفاءة من التوزيعات الأخرى يسمي هذا التوزيع : (Gompertz alpha Power Lomax distripution ) وتم اشتقاق مختلف الخصائص الهيكلية للتعميم الجديد مثل : دالة الكوانتيل ،والتوقع ...
سارة عمر ابراهيم على الشاوي
doaj   +1 more source

Properties of Gompertz data revealed with non-Gompertz integrable difference equation

open access: yesCogent Mathematics & Statistics, 2019
AbstractBehaviour of the upper limit estimated by an unsuitable model (the logistic curve model) was mathematically analysed for data on an exact solution of the Gompertz curve model with integrabl...
openaire   +1 more source

Gompertz curves with seasonality [PDF]

open access: yesTechnological Forecasting and Social Change, 1994
This paper considers an extension of the usual Gompertz curve by allowing the parameters to vary over the seasons. This means that, for example, saturation levels can be different over the year. An estimation and testing method is proposed and illustrated with an example.
openaire   +2 more sources

Temporal Trends and Prognosis in Rotational Atherectomy: A Comparison of Contemporary and Traditional Eras

open access: yesCatheterization and Cardiovascular Interventions, Volume 108, Issue 5, Page 1828-1836, November 1, 2026.
ABSTRACT Background Rotational atherectomy (RA) has undergone considerable technical modernization in recent years. This study evaluated whether RA performed in the contemporary era was associated with superior cardiovascular outcomes compared with the traditional era. Aims To compare the clinical characteristics and cardiovascular outcomes of patients
Ravi Vazirani   +15 more
wiley   +1 more source

A multivariate Gompertz-type distribution

open access: yes, 2009
Multivariate extensions of the Gompertz distribution are plausible models for the study of several dependent populations with a Gompertz law of growth or multivariate survival data.
BOLOGNA, Salvatore
core  

An Investigation in Poly (Lactic Acid)‐Cellulose Acetate Composites Used for the Controlled Release of Potassium Fertilizers

open access: yesPolymer Engineering &Science, Volume 66, Issue 11, Page 8244-8262, November 2026.
Schematic graph of controlled release potassium for plant growth. ABSTRACT Biodegradable polymer–based controlled‐release fertilizers (CRFs) offer an environmentally friendly approach to enhancing nutrient use efficiency while minimizing ecological impacts.
Kaleum Meaney   +10 more
wiley   +1 more source

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