Search results for "operative"

Spectrum and energy efficient solutions for OFDMA collaborative wireless networks

2013

Myotomy of cricopharungeal muscle in the therapy of dyskinesia of upper esophageal sphincter: personal experience

2012

Dyskinesia of the esophagus includes the entire esophagus from the upper esophageal sphincter to the lower esophageal sphinc - ter together with a wide spectrum of physi - opathological and clinical variations. Related to functional diseases such as Dyskinesia of UES (Upper Esophageal Sphincter), myo- tomy is an excellent procedure for patients with cervical dysphagia. In our experience, the surgical treatment is the only procedure to treat UES dyskinesia. For a successful in - tervention is mandatory: a pharyngeal pump efficiency, hypertension of UES and conservation of esophageal peristalsis in the absence of GERD (Gatroesophageal Reflux Disease). From January 2006 to December 2011, the A…

Doctrinal and Model Conditions of Family Support. International Recognition

2020

The article raises the issues of social activity aimed at supporting families. In particular, reference is made to the classic concepts of political models of the state organized according to the principles of liberalism, socialism and socliberalism as the middle ground between the first two. On the foundation of political assumptions, proposals are built of model family support arranged in three different circumstances of state governance. Three respective models of family support are outlined, which refer to the liberal, socialist and socliberal assumptions. Each of the models is discussed, i.e. the incentive, the caring, and the partnership model. The concept of family support models can…

La mobilité résidentielle transfrontalière dans l'Arc jurassien franco-suisse

2011

ACL; National audience

Biological and antibacterial properties of a new silver fiber post : in vitro evaluation

2016

Background The incorporation of nano silver particles (AgNPs) to improve antibacterial properties of dental materials has become increasingly common. The aim of the present study was to compare the antibacterial activity and cytotoxicity effects of different fiber posts: glass fiber post, quartz fiber post, nano fiber post and silver fiber post. Material and methods The antibacterial activity against S. mutans, S. salivarius and S. sanguis was evaluated by using the agar disc diffusion test (ADT). Four wells of 3x2 mm (one for each material) were made with a punch by removing the agar and filled with the materials to be evaluated. The size of the inhibition zone was calculated. An extract w…

Effect of electric currents on antibacterial effect of chlorhexidine against Entrococcus faecalis biofilm : An in vitro study

2018

Background This in vitro study was mainly aimed to evaluate the effect of high-frequency alternating currents (AC) applied by an electronic apex locator (EAL) on the antibacterial properties of chlorhexidine (CHX) on E. faecalis biofilm. Material and Methods The root canals of 120 extracted human single-rooted teeth were prepared using Gates-Glidden drills and hand K-files. After contaminating the root canals with E. faecalis, they were incubated for 60 days. Then, the teeth were randomly divided into six experimental groups (n=20). Group 1, 2% CHX; group 2, normal saline (NS) with direct current (DC); group 3, normal saline (NS) with high-frequency alternating current (AC); group 4, 2% CHX…

A Logic Fuzzy Model for Evaluation of the Railway Station’s Practice Capacity in Safety Operating Conditions

2013

Abstract The practice capacity of a railway junction depends, in addition to the effective operation’s conditions, by the potential risk factors related to the design plan of the railway station. With the aim of an approach based on the “fuzzy sets” it is possible to determine the numeric value of the practice capacity by the logic - qualitative relations between the features of the railway junction and the potential risk factors. This methodology permits to try out the absolute value of a suitable vector β, (less then the unit) for the utilization of the theoretic capacity in conditions of maximum reliability of the system related to the aspect of safety (technique “fail safe”).

Fuzzy logic controller and game theory based distributed energy resources allocation

2020

Energy management and demand control through conventional energy generation sources are challenging for energy providers. Distributed energy resources (DERs) allocation near load centers may provide a suitable solution. The main contribution of the paper improves the voltage profile and reduce the active and reactive power losses in the distribution network. DERs are integrated with IEEE 33 bus system using fuzzy logic controller (FLC) and game theory for two different cases with unity and 0.9 power factor (PF) and compares with conventional methods of integration (i.e., modified novel method, power loss sensitivity method, voltage sensitivity analysis method). The capacity of DERs is optim…

New insights on the role of ecology and life-history in social evolution

2017

Biological altruism, defined as a behaviour that benefits others at an apparent cost to the focal individual, is found abundantly across different levels of biological organization. While kin selection has been useful for explaining both cooperation and conflict in specialized cooperative societies, more theoretical work has to be done to develop models for realistic ecological and life-history contexts. This thesis aims to fill this gap by providing several new insights on the role of ecology and life-history in various social systems. Firstly, I propose a model that incorporates realistic ecological mechanisms of population regulation and study how different population regulation mechanisms affe…

Orthognathic surgery and aligners. A comparative assessment of periodontal health and quality of life in postsurgical orthodontic treatment with alig…

2023

Removable clear aligners have become very popular in the last few decades, but they are still little used in the field of orthognathic surgery (OS). The objective of this study was to compare periodontal health and quality of life (QoL) associated to postsurgical orthodontic treatment. Patients with dentofacial deformities undergoing OS were randomly allocated to receive postsurgical orthodontic treatment with either fixed orthodontic appliances or Invisalign. The main outcomes were periodontal health and QoL. Plaque index, probing depth and bleeding on probing were assessed as periodontal health indicators. QoL was assessed through the Orthognathic Quality of Life Questionnaire (OQLQ-22) a…