Defect tolerance of a gamma titanium aluminide alloy

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Ozone Treatment for the Management of Caries in Primary Dentition: A Systematic Review of Clinical Studies

Dental caries in children is a frequent and debilitating condition, whose management is often challenging. The aim of this systematic review was to investigate the effectiveness of ozone applications for the treatment of caries in primary dentition. According to PRISMA guidelines, a systematic literature search was performed up to 6 January 2024. Clinical studies using ozone to treat caries of deciduous teeth were considered for inclusion. Out of the 215 records retrieved, seven studies were eventually included in the review, all of which used gaseous ozone. Four studies were judged at high risk of bias, two at low risk, and one of some concerns. The great heterogeneity of designs, outcomes, and protocols made it impossible to conduct a meta-analysis. Despite some limitations, the evidence yielded by the included studies suggests that ozone application, regardless of the protocol applied, is comparable to other interventions in terms of clinical outcomes and anti-bacterial activity, with no reported adverse effects and good patient acceptance. Therefore, ozone application may be a non-invasive approach to treat caries in primary dentition, especially in very young and poorly cooperative patients. Further standardized and rigorous studies are, however, needed to identify the best clinical protocols for this specific field

Ulcerative oral lesions: an overview of non-pharmacologic treatment options

Background and Objective: Ulcerative diseases frequently affect the oral cavity and are disabling conditions. The management is challenging, and traditional treatments are associated with potential side effects. Alternative non-pharmacologic strategies have become available to effectively manage these conditions. This review aims at providing a synthesis of the most common erosive-ulcerative oral diseases and an updated overview of the main non-pharmacologic options for their management, such as laser therapy, ozone applications, and photodynamic therapy. Methods: A narrative review was conducted by searching PubMed/MEDLINE for the most recent relevant systematic reviews or, alternatively, clinical trials or case reports. Results: Laser photobiomodulation therapy (PBMT), ozone therapy and photodynamic therapy (PDT) generally resulted in rapid relief of painful symptoms, reduced healing time and improved oral functions and patients’ quality of life. No major side-effects were reported. Regardless of the primary etiology, photodynamic therapy proved particularly effective in case of infections. Ozone was used in gaseous, ozonized water and oil formulations. The most used light sources were Nd:YAG, He:Ne, Er,Cr:YSGG, red and infrared diode lasers and LED for PBMT, while red diode lasers prevailed for PDT. The most common photosensitizers were methylene blue and toluidine blue O. Conclusions: There is growing evidence for an efficacy of PBMT, ozone and PDT for the treatment of ulcerative oral lesions, and therefore these approaches should be considered as valid non-pharmacologic strategies. However, due to the great heterogeneity of protocols, additional well-designed research to identify the best therapeutic protocols is needed. (www.actabiomedica.it)

Microbial dynamics and fertility characteristics in compost from different waste and maturation processes

We evaluated the abundance of microbial functional groups involved in compost fertility, and the chemical parameters of maturity and quality most commonly analyzed in compost products. We employed compost produced using the same hydrolytic stage and two maturation processes (with and without earthworms) and with different organic wastes. Our aim was to propose a valid tool for measuring the quality standards of compost fertility from a microbial perspective. The products obtained from both maturation processes were highly variable in their chemical and biological composition (without following a general pattern). Because the results are so heterogeneous, proposing a microbial population as universal indicator of the degree of compost fertility is very difficult. However, the microbial community structure might be used as a maturity index, because the products that best fulfilled the chemical stability parameters were those with lowest number of populations in its community.Fil: Abril, Adriana. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias; ArgentinaFil: Noe, L.. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias; ArgentinaFil: Filippini, Maria Flavia Ramona. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; ArgentinaFil: Cony, Mariano Anibal. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; ArgentinaFil: Martinez, L.. Instituto Nacional de Tecnologia Agropecuaria. Centro Regional Mendoza-san Juan. Estacion Experimental Agropecuaria Mendoza. Agencia de Extension Rural Lujan de Cuyo.; Argentin

SIG para a gestão vitivinícola no Vale dos Vinhedos, RS

Processaram-se dados dos atributos físicos e químicos dos solos superficiais de três vinhedos localizados no Vale dos Vinhedos, Bento Gonçalves, RS, de acordo com procedimentos de viticultura de precisão, levantamento de solos e geotecnologias. A aplicação combinada de métodos estatísticos multivariados, geoestatística e SIG permitiu caracterizar três grupos principais de amostras onde os atributos edáficos se mantêm aproximadamente uniformes. A transformação da área ocupada por esses grupos em zonas de manejo dependerá da estratégia produtiva e de mercado da gestão vitícola. Considerando também trabalhos pretéritos, espera-se influenciar a qualidade da uva em cada zona, resultando em vinhos de características específicas com potencial para agregação de valor

Zoneamento Edáfico da Cana-de-açúcar no Polo Petroquímico de Triunfo.

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SIG para a gestão vitivinícola no Vale dos Vinhedos, RS

Processaram-se dados dos atributos físicos e químicos dos solos superficiais de três vinhedos localizados no Vale dos Vinhedos, Bento Gonçalves, RS, de acordo com procedimentos de viticultura de precisão, levantamento de solos e geotecnologias. A aplicação combinada de métodos estatísticos multivariados, geoestatística e SIG permitiu caracterizar três grupos principais de amostras onde os atributos edáficos se mantêm aproximadamente uniformes. A transformação da área ocupada por esses grupos em zonas de manejo dependerá da estratégia produtiva e de mercado da gestão vitícola. Considerando também trabalhos pretéritos, espera-se influenciar a qualidade da uva em cada zona, resultando em vinhos de características específicas com potencial para agregação de valor

Shining Light on Carbon Dots: New Opportunities in Photocatalysis

Photocatalysis is an emerging field that exploits light-absorbing catalysts to yield transformations not even achievable in the dark. Considering the drawbacks of metal-based photocatalysts, Carbon Dots (CDs) recently emerged as suitable green alternatives for different photocatalytic reactions. These carbon nanoparticles are easy to prepare, non-toxic and potentially recyclable. Moreover, CDs usually display core-shell structures which are highly tunable via synthetic and post-synthetic strategies. This Concept Article focuses on the recent advancements in the CD-based photocatalysis, highlighting the link between their superficial and core composition and their resulting photo-redox abilities, and giving future perspectives on their application in cutting-edge area