Criteria pollutant and greenhouse gas emissions from cargo handling equipment operating at the Ports of Los Angeles and Long Beach.

This study reports in-use emissions from eight pieces of diesel or natural gas cargo handling equipment (CHE) moving containerized freight at the Ports of Los Angeles and Long Beach. Equipment had engines certified to the legacy on-road model year (MY) 2010 or the off-road Tier 3, Tier 4 Interim, or Tier 4 Final emission standards. Overall, load factors were about half of the values in the California Air Resources Board's (CARB) current CHE emissions inventory, oxides of nitrogen (NO) emissions were 2.

Patterns in Oral Hygiene and Dietary Habits in School Children during the COVID-19 Pandemic.

Aim: To assess oral hygiene and dietary patterns in school children participating in a school-based preventive oral health program during the COVID-19 pandemic.

Materials And Methods: In this cross-sectional study, an anonymous questionnaire exploring oral hygiene and dietary patterns during the COVID-19 pandemic was completed by parents of school children. Data were compared among different schools, school years, and between genders using nonparametric tests.

Multimodal teaching methods for students in dentistry: a replacement for traditional teaching or a valuable addition? A three-year prospective cohort study.

Background: This student-centred prospective cohort study evaluated the impact of multimodal teaching methods on student performance in the theoretical domain of dental studies.

Methods: Dental students answered anonymous questionnaires indicating their preferences and opinions three times over three consecutive academic years. Data collected included gender, course, year of study and most frequent and preferred learning modality.

The impact of school-based social media and online technology on oral health education for individuals with disability.

Aim: To evaluate the impact of school-based online communication methods on the oral health-related behavirs of individuals with disability.

Method: A prospective interventional study was conducted on 154 students (age 3-22 years) with various disabilities attending educational centers. A clinical examination was carried out before and after a school-based online educational program.

Risk prediction models for erosive wear in preschool-aged children: a prospective study.

Background: Despite increasing prevalence, age-specific risk predictive models for erosive tooth wear in preschool-age children have not been developed. Identification of at-risk groups and the timely introduction of behavioural change or treatment will stop the progression of erosive wear in the permanent dentition. This study aimed to identify age-specific risk factors for erosive wear.