On Ternary FF-manifold Algebras and their Representations

We introduce a notion of ternary $F$-manifold algebras which is a generalization of $F$-manifold algebras. We study representation theory of ternary $F$-manifold algebras. In particular, we introduce a notion of dual representation which requires additional conditions similar to the binary case. We then establish a notion of a coherence ternary $F$-manifold algebra. Moreover, we investigate the construction of ternary $F$-manifold algebras using $F$-manifold algebras. Furthermore, we introduce and investigate a notion of a relative Rota-Baxter operator with respect to a representation and use it to construct ternary pre-$F$-manifold algebras.Comment: Comments are welcome. arXiv admin note: text overlap with arXiv:2102.05595; text overlap with arXiv:2002.10238 by other author

Remote sensing of cirrus clouds and aerosols by a sun photometer in Tunisia

International audienceSome ground based measurements of solar radiation by using a sun photometer, have been conducted in Tunisia during the period of November 2000–February 2002. Five key measurement sites were selected: Three Sites (Tunis, Sousse, Gabes) are located on the Mediterranean coast and Two sites (Gafsa, Tozeur) on the boarder of Sahara. Over a total of 149 measurement days, 21 days are identified as clear sky, 114 days as Cirrus clouds and 14 days as aerosols. Aerosols and Cirrus clouds Optical Thickness (AOT) are derived from photometric measurements at 532 nm wavelength. Spatial and temporal variabilities of AOT are presented and discussed in this paper. Cirrus clouds were frequently observed at Gafsa and Tozeur where saharan aerosol events are expected to be more frequent than cirrus clouds. The mediterranean sea and saharan aerosols are suspected to have the main role in cirrus clouds formation, by providing water vapor and high concentrations of cloud condensation and ice forming nuclei

Phlegmon peri-amygdalien aspects diagnostiques et thérapeutiques

Introduction: The Peritonsillar abscesse (PTA) is a suppurated complication of the face and the neck often met as a matter of urgency ENT. He can raise diagnostic and therapeutic problems and be life-threatening. The objective of this study is to specify the epidemiological and clinical particularities of this affection and to revise the therapeutic possibilities from a review of the literature.PATIENTS AND METHODS: This retrospective study concerning 75 patients hospitalized for PTA in the Department of Otolaryngology-Head and Neck Surgery of the Hospital of Nabeul over a period of 7 years (in January 2001 to December 2007). The study of files allowed us to find all the clinical and therapeutic data. Our drop is of two years.RESULTS : The average age of our patients was of 26 years with a sex ratio of 1. The classic set of three of the PTA was complete only in 49 % of the cases. All the patients were the object of a needle aspiration, it was positive in 74 % among which 92 % benefited from a drainage under local anesthetic. A germ was identified in 16 cases with a Streptococcus â-hemolytic group A in 13 cases. The clinical and biological cure was noticed on average in the tenth day. Forty-seven patients underwent tonsillectomy at a later date after an interval from 2 to 6 months. No emergency tonsillectomy was realized.CONCLUSION : The Peritonsillar abscesses is a frequent urgency in ENT. The diagnostic is clinical. The practicable of needle aspiration in every case allows to confirm the diagnosis in the incomplete forms. The treatment is medical and surgical.KEYWORDS : Peritonsillar abscesses, diagnostic, treatmen

Les tumeurs parotidiennes

Objectif : Les tumeurs des glandes salivaires sont rares, dominées en fréquence par les tumeurs parotidiennes. elles sont caractérisées par une grande hétérogénéité morpho-histologique. Les formes bénignes sont les plus fréquentes dominées par l’adénome pléomorphe. Le traitement de ces tumeurs demeure chirurgical en premier lieu.Matériel et méthodes: Cette étude est rétrospective portant sur 47 cas de tumeurs parotidiennes sur une période de 10 ans (janvier 2000 à décembre 2009). L’étude des dossiers nous a permis de relever toutes les données cliniques et thérapeutiques. Notre recul est de deux ans.Résultats : L’âge moyen de nos patients était de 42 ans avec un sex-ratio de 2,58. Les tumeurs bénignes représentaient 89 % et 11 % étaient malignes. L’adénome pléomorphe était la tumeur bénigne la plus fréquente. La tumeur maligne la plus commune était le carcinome muco-épidermoïde. Le traitement de choix est la parotidectomie partielle ou totale. Cependant, la paralysie du nerf facial reste la complication principale de la chirurgie parotidienne.Conclusion : Les formes bénignes sont prédominante s, dont le plus fréquent demeure l’adénome pléomorphe. L’imagerie moderne permet une approche histopathologique de nature. Le traitement de choix est la parotidectomie totale ou partielle. La radiothérapie peut être indiquée dans les formes malignes.Mots-clés : Tumeur, Parotide, Adénome pléomorphe, Maligne, Chirurgie

S-FMECA Based Collaborative Design Proposal for Additive Manufacturing Methodology

In the current context, the sustainable development, eco-design and eco-manufacturing concepts are being developed in research laboratories, and further being integrated gradually into manufacturing industries. Hence, the needed information for eco-design is scattered throughout the product life cycle and is not centralized; especially when designing for Additive Manufacturing. This paper aims to develop a collaborative eco-design methodology by using eco-design tools in different design stages and, finally, to contribute to tackling this issue. Either in the early design stage or in the detailed on, the designer will be supported to make sustainable, conscious decisions. The proposed methodology based on the sustainable-failure modes, effects, and criticality analysis (S-FMECA) eco-designing tool allows the communication with computer-aided design (CAD), computer-aided manufacturing (CAM), life cycle assessment (LCA), topology optimization (TO) and product life cycle management (PLM) software in order to assist the designer to make green-conscious decisions

S-FMECA: A Novel Tool for Sustainable Product Design - Additive Manufacturing

The choices made in the early design stage (EDS) will largely define the environmental impacts of a product. The purpose of this paper is to develop an eco-design method used for assessing semi-quantitatively the sustainability of an additively manufactured product since the EDS. This article presents a semi-quantitative method to support EDS-conscious environmental decisions. A novel Sustainable-Failure Mode, Effect, and Criticality Analysis (S-FMECA) tool is developed to support designers in the conceptual design phase, to guide the choices, and to provide a valuable evaluation of the future additively manufactured product. Through the integration of the environmental aspects in FMECA analysis, systematic prevention of errors, and enhancement of sustainability since the EDS would be the main advantage of this tool

Systematic comparison with autoimmune liver disease identifies specific histological features of immune checkpoint inhibitor-related adverse events.

Immune checkpoint inhibitors (ICIs) have become a mainstay of cancer treatment. Their immune-boosting quality has one major drawback, their proclivity to induce a broad array of immune-related adverse events (irAEs) affecting, among others, the liver and sharing some similarities with classic autoimmune liver diseases (AILD).We aimed to compare clinical, laboratory and histological features of patients with liver-related irAEs and AILD. We systematically compared liver irAEs with AILD, namely autoimmune hepatitis (AIH) and primary biliary cholangitis, regarding their clinical, laboratory, and histological features. Twenty-seven patients with liver irAEs (ICI group) and 14 patients with AILD were identified. We observed three distinct ICI-induced histological liver injury patterns: hepatitic (52%), cholangitic (19%), and mixed (29%). When comparing the ICI and AILD groups, centrilobular injury as well as granuloma formation were more prevalent in the former (p=0.067 and 0.002, respectively). CD4+/CD8+ T cell ratios were heterogeneous between the two groups, without statistically significant difference but with a trend toward increased CD8+ T cells among hepatitic irAEs as compared with AIH. Pattern of liver function test alteration was predictive for the type of irAEs but did not correlate with histological severity. Liver irAEs have broad clinical, laboratory and histological presentations. Histological features of irAEs and AILD are distinct, likely underpinning their different immunological mechanisms