Features and applications of Bertalanffy-Richards' and Schnute's growth equations

Lei, Yinru; Marques, Catarina; Bento, João

doi:10.1216/nrm/1018031414

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 2 Assignment description of influencing factors Previous studies found that tumor diameter was positively correlated with lymph node metastasis. A previous study in China [7] found mediastinal lymph node metastasis rates of 0%, 10.5%, and 29.7%…”

Section: Resultsmentioning

confidence: 89%

Risk factors for lymph node metastasis and surgical methods in patients with early-stage peripheral lung adenocarcinoma presenting as ground glass opacity

wang

Jing

wang

2020

Preprint

View full text Add to dashboard Cite

Background It is difficult to predict lymph node metastasis in patients with early lung cancer. Pure ground glass opacity (GGO) on computed tomography indicates an early-stage adenocarcinoma that can be removed by limited resection or lobectomy without the need for mediastinal lymph node dissection or sampling, and lung adenocarcinoma with GGO therefore has a good prognosis. We examined the incidence and risk factors of lymph node metastasis in patients with clinical stage IA lung adenocarcinoma. Methods We retrospectively analyzed clinical data for 327 patients with stage IA peripheral lung cancer treated in our hospital from March 2014 to December 2018. The patients were divided into four groups according to computed tomography signs. Lobectomy and systematic lymph node dissection or sampling were performed in all patients. Correlations between lymph node metastasis and clinical pathological factors were analyzed by logistic regression. Results Among the 327 patients, 26 (7.95%) had lymph node metastasis. No patients with pure GGO or GGO-dominant types had lymph node metastasis. Logistic regression identified tumor diameter, solid content, plasma carcinoembryonic antigen (CEA) level, pathological type, lymphovascular invasion, and pleural invasion as factors related to the presence of lymph node metastasis. Conclusions Tumor diameter, solid component ratio, plasma CEA level, pathological type, vascular tumor thrombus, and pleural invasion are possible independent risk factors for lymph node metastasis in patients with stage IA lung adenocarcinoma. In contrast, lymph node metastasis is rare in patients with pure GGO or GGO-dominant lung adenocarcinoma.

show abstract

Section: Resultsmentioning

confidence: 89%

Risk factors for lymph node metastasis and surgical methods in patients with early-stage peripheral lung adenocarcinoma presenting as ground glass opacity

wang

Jing

wang

2020

Preprint

View full text Add to dashboard Cite

show abstract

“…[77] were the first to introduce the model to forestry. Later on [65,84], and [85] used this model as well.…”

Section: The Use Of Growth Equations In Empirical Studiesmentioning

confidence: 99%

Growth Equations in Forest Research: Mathematical Basis and Model Similarities

et al. 2021

View full text Add to dashboard Cite

no pasa nada Purpose of Review Growth equations have been widely used in forest research, commonly to assess ecosystemlevel behaviour and forest management. Nevertheless, the large number of growth equations has obscured the growth-rate behaviour of each of these equations and several different terms for referring to common phenomena. This review presents a unified mathematical treatment of growth-rates besides several well-known growth equations by giving their mathematical basis and representing their behaviour using tree growth data as an example.Recent Findings We highlight the mathematical differences among several growth equations that can be better understood by using their differential equations forms rather than their integrated forms. Moreover, the assumed-and-claimed biological basis of these growthrate models has been taken too seriously in forest research. The focus should be on using a plausible equation for the organism being modelled. We point out that more attention should be drawn to parameter estima-

show abstract

Features and applications of Bertalanffy-Richards' and Schnute's growth equations

Cited by 2 publications

References 0 publications

Risk factors for lymph node metastasis and surgical methods in patients with early-stage peripheral lung adenocarcinoma presenting as ground glass opacity

Risk factors for lymph node metastasis and surgical methods in patients with early-stage peripheral lung adenocarcinoma presenting as ground glass opacity

Growth Equations in Forest Research: Mathematical Basis and Model Similarities

Contact Info

Product

Resources

About