Based on the structural characteristics of Cycas trunk, including vegetative leaf base scars, sporophyll concave rings, and average occurrence probabilities of vegetative leaf and sporophyll, a method for the age estimation of Cycas fairylakea population was developed, and the age of each individual was calculated. Three approaches, i.e., age structure diagram, age distribution curve and curve estimation were used to study the age structure of C. fairylakea population at genet and clone population levels. The age structure diagram showed that the clone population of C. fairylakea was stable, but the genet population was in declining. However, both of the clone and genet populations were in declining when using the other two approaches. It was considered that the C. fairylakea population was in declining, and needed an urgent protection.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Knowledge and behavior towards COVID-19 in the northern region of the state of Rio de Janeiro - Brazil.
J Infect Dev Ctries
December 2024
Faculdade de Medicina de Campos, Campos dos Goytacazes, Brazil.
Introduction: Despite efforts by health organizations to share evidence-based information, fake news hindered the promotion of social distancing and vaccination during the coronavirus disease 2019 (COVID-19) pandemic. This study analyzed COVID-19 knowledge and practices in a vulnerable area in northern Rio de Janeiro, acknowledging the influence of the complex social and economic landscape on public health perceptions.
Methodology: This cross-sectional study was conducted in Novo Eldorado - a low-income, conflict-affected neighborhood in Campos dos Goytacazes - using a structured questionnaire, following the peak of COVID-19 deaths in Brazil (July-December 2021).
Propolis mouthwashes efficacy in managing gingivitis and periodontitis: a systematic review of the latest findings.
BDJ Open
January 2025
Department of Orthodontics, Institute of Dentistry, Medical Faculty, Jagiellonian University, Kraków, Poland.
Background And Objectives: Gingivitis and periodontitis are common periodontal diseases that can significantly harm overall oral health, affecting the teeth and their supporting tissues, along with the surrounding anatomical structures, and if left untreated, leading to the total destruction of the alveolar bone and the connective tissues, tooth loss, and other more serious systemic health issues. Numerous studies have shown that propolis can help reduce gum inflammation, inhibit the growth of pathogenic bacteria, and promote tissue regeneration, but with varying degrees of success reported. For this reason, this comprehensive systematic review aims at finding out the truth concerning the efficacy of propolis mouthwashes in treating gingivitis and periodontitis, as its main objective.
View Article and Find Full Text PDF[Gastrointestinal hamartomatous inverted hyperplastic polyps: a clinicopathological analysis of ten cases].
Zhonghua Bing Li Xue Za Zhi
February 2025
Department of Pathology, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China.
To investigate the clinicopathological features, diagnosis, genetic alterations, and biological behaviors of hamartomatous inverted hyperplastic polyp (HIHP) in the gastrointestinal tract. The clinical, sonographic, endoscopic and pathologic data of 10 HIHP cases diagnosed at the First Affiliated Hospital of Air Force Medical University, Xi'an, China from January 2013 to March 2024 were collected. Their clinicopathological features and histological morphology were analyzed.
View Article and Find Full Text PDFPsychometric Properties of the Self Care Oral Anticancer Agents Index (SCOAAI).
Semin Oncol Nurs
January 2025
Department of Biomedicine and Prevention, Tor Vergata University of Rome, Rome, Italy; Department of Nursing and Obstetrics, Wroclaw Medical University, Poland.
Objective: To test the Self-Care Oral Anticancer Agents Index (SCOAAI)'s psychometric properties (structural validity, convergent validity, predictive validity, and internal consistency) in a sample of patients with solid tumour on Oral anticancer agents (OAA).
Methods: A methodological research in five in- or out-patient Italian facilities. Structural validity was tested by confirmatory factor analysis, and internal consistency was assessed through Cronbach's alpha and composite reliability.
Healthy lifestyle before and during pregnancy to prevent childhood obesity: study protocol for a parallel group randomised trial - the PRE-STORK trial.
BMJ Open
January 2025
Clinical and Translational Research, Steno Diabetes Center Copenhagen, Herlev, Denmark
Introduction: The global prevalence of people living with overweight has tripled since 1975 and more than 40% of Danish women enter pregnancy being overweight. With the increasing rates of obesity observed in children, adolescents and adults, there is an urgent need for preventive measures. Risk factors for childhood obesity include maternal overweight or obesity before conception and excessive weight gain during pregnancy.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!