Abstract Nitrogen‐rich carbon nitrides are desired materials for base‐catalysed transformations; however, their synthesis is challenging due to the volatile nature of N at high temperatures. Herein, we report on temperature‐controlled ordered N‐rich mesoporous (MCNs) via pyrolysis aminoguanidine by using SBA‐15 as a hard template. The properties and nitrogen content were tuned varying carboniza...

350 The excessive differential wear of teeth and restorative materials has significant deleterious effects on the biologic, functional, and esthetic condition of the masticatory system. However, controlled investigations of numerous factors that might influence tooth and restoration wear have been mainly laboratory studies, the findings of which might not correlate with either the physical prop...

In March 2014 an outbreak of measles commenced in a small religious school attended by around 350 children from families with extremely low MMR vaccination uptake. Within 4 weeks almost 400 cases were observed within the 1200 member congregation. Only four cases occurred unlinked to the congregation. While importations of measles into Canada are expected and rapid spread is possible in unimmuni...

Under 5 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 850 7.9 5 to 9 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 957 8.9 10 to 14 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 841 7.8 15 to 19 years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 875 8.1 20 to 24 years . . . . . . . . . . . . . . . . . . . . ....

OBJECTIVE To document the effect of the liberalisation of the Japanese tobacco market on Japanese smoking rates and on Japanese tobacco industry practices. DATA SOURCE Asahi Shimbun (major daily newspaper) from 1980 to 1996. STUDY SELECTION Review of media coverage on the effects of market liberalisation following the imposition of the USA's section 301 trade sanction. DATA SYNTHESIS The ...

Objective—To document the eVect of the liberalisation of the Japanese tobacco market on Japanese smoking rates and on Japanese tobacco industry practices. Data source—Asahi Shimbun (major daily newspaper) from 1980 to 1996. Study selection—Review of media coverage on the eVects of market liberalisation following the imposition of the USA’s section 301 trade sanction. Data synthesis—The opening ...

The controlled introduction of oxygen vacancies (OVs) in photocatalysts has been demonstrated to be an efficient approach for improving the separation photogenerated charge carriers, and thus, enhancing photocatalytic performance photocatalysts. In this study, a two-step calcination method where ZIF-8 was used as precursor explored synthesis ZIF-8-derived ZnO nanoparticles with gradient distrib...

In this study, the effect of cement content on concrete performance in corrosive environments is investigated on concrete mixtures having the same water/cement (w/c) ratio. Three w/c ratios (0.40, 0.45 and 0.50) were used and for each w/c ratio three mixtures were prepared with cement contents 350, 400 and 450 kg/m3. The compressive strength, electrical resistivity and chloride diffusivity of t...

1 Parque Tecnológico de Belo Horizonte, Rua Professor José Vieira de Mendonça N 770, Salas 406 e 407, Engenho Nogueira, 31310-260 Belo Horizonte, MG, Brazil 2 Departamento Regional da Bahia, Centro Integrado de Manufatura e Tecnologia, SENAI, Avenida Orlando Gomes N 1845, Piatã, 41650-010 Salvador, BA, Brazil 3 Departamento de Electromagnetismo y Fı́sica de la Materia Facultad de Ciencias, Unive...