LetN be a zero-symmetric left near-ring, not necessarily with amultiplicative identity element; and letZ be its multiplicative center. DefineN to be 3-prime if for all a, b ∈ N\{0}, aNb / {0}; and callN 2-torsion-free if N, has no elements of order 2. A derivation onN is an additive endomorphism D of N such that D xy xD y D x y for all x, y ∈ N. A generalized derivation f with associated deriva...

n J Am Med Inform Assoc. 1997;4:233–237. Large administrative databases are increasingly being used to compare mortality across hospitals. However one limitation of these databases is that they include only in-patient mortality. Information on out-of-hospital deaths can be obtained on a patient-by-patient basis from centralized death certificate registries, such as the National Death Index or t...

Cephalometric analysis of lateral radiographs of the head is an important diagnosis tool in orthodontics. Based on physically locating specific landmarks, it is a boring, lengthy and error prone task. The objective of this work is to calculate the SNA angle, SNB angle and ANB angle between the landmarks to identify the input and output parameters pertaining to skeletal abnormalities. By doing s...

Abstract Background Mouth breathing is closely related to the facial skeletal development and malocclusion. The purpose of this systematic review meta-analysis was assess effect mouth on malocclusion in children. Methods An electronic search PubMed, Cochrane Library, Medline, Web Science, EMBASE Sigle through February 23rd, 2020, conducted. Inclusion criteria were children under 18 years age wi...

Thanks to the uncertainty and fluctuation of wind power, mismatch between supply load is increasing. Consequently, power should be responsible for imbalance caused by its volatility. Meanwhile, thermostatic (TCL) becoming a promising regulation capacity provider with development demand side technology. This paper proposes combined energy market framework encourage pay cost. And cooperation pres...

Objective: To determine the morphological distribution of Classes II malocclusions according to skeletal pattern in an adult sample School Dentistry University Chile. Materials and methods: The experimental consisted 220 individuals over 18 with ANB angle greater than 4°. SNA SNB angles were measured assign Class pattern. Results: most frequent was mandibular followed by maxillary In addition, ...

Objetivo: Comparar el espacio de la vía aérea faríngea (nasofaringe y orofaringe) a través del análisis radiografías laterales en individuos clase II esquelética comparado con un grupo control I. Materiales método: Este estudio fue tipo observacional, descriptivo, transversal prospectivo. Su muestra estuvo conformada por 60 cabeza distribuidas 30 I (ANB 2° ± maloclusión I) > 5° II-1). En ell...