Objective: To find out the association of lower anterior arch crowding with angulations impacted mandibular third molar. Materials and Methods: Data for this cross-sectional study was collected from Panoramic radiographs dental casts patients meeting inclusion criteria. The molars were classified based on Winter’s classification using little’s irregularity index. A statistical analysis performe...

Background: Left ventricular (LV) systolic function during atrial fibrillation (AF) is positively correlated with an index of ventricular cycle-length irregularity, the ratio of preceding R-R interval to pre-preceding R-R interval (RRp/RRpp). This study was designed to elucidate the relationship between the RRp/RRpp ratio and LV function, and to identify factors which influence the relationship...

Bus systems are unstable without considering any control. Thus, we are able to consider some control strategies to alleviate this problem. A holding control strategy is one commonly used real-time control strategy that can improve service quality. This paper develops a mathematical model for a holding control strategy. The objective of this model is to minimize the total cost related to passeng...

The problem of attempting to construct radar signals whose ambiguity functions are sharply peaked in both time and frequency gives rise to a quantitative concept of the irregularity of a distribution of points. The problem of maximizing the irregularity of N points distributed on a bounded closed interval is here examined. A discrete mathematical tool for studying the irregularity function is d...

Irregularity of firing in spike trains has been associated with coding processes and information transfer or alternatively treated as noise. Previous studies of irregularity have mainly used the coefficient of variation (CV) of the interspike interval distribution. Proper estimation of CV requires a constant underlying firing rate, a condition that most experimental situations do not fulfill ei...

STUDY QUESTION Do teenage girls with a history of menstrual irregularity and/or elevated androgen levels in adolescence exhibit an increased risk of polycystic ovary syndrome (PCOS) and/or infertility later on in adulthood? SUMMARY ANSWER Our results suggest that menstrual irregularity and/or elevated androgen levels at 16 years are still associated with symptoms of PCOS at 26 years as well a...

water is a unique natural resource among all sources available on earth. it plays an important role in economic development and the general well-being of the country. this study aimed at using the application of water quality index in evaluating the ground water quality innorth-east area of jaipur in pre and post monsoon for public usage. total eleven physico–chemical characteristics; total dis...

Considering that the mechanical mechanism and energy release law of gradual failure columnar jointed basalt (CJB) are affected by lateral pressure, rock heterogeneity column irregularity, etc., numerical CJB models with various dip angles, irregularity degrees pressures were established through digital image correlation. The progressive process released CJBs simulated under loading rate 0.05 mm...

Posttraumatic osteoarthritis constitutes a major cause of disability in our increasingly elderly population. Unfortunately, current imaging modalities are too insensitive to detect early degenerative changes of this disease. Optical coherence tomography (OCT) is a promising nondestructive imaging technique that allows surface and subsurface imaging of cartilage, at near-histological resolution,...