METHODOLOGY: Complete rpoB gene sequences of globally distributed Brucella melitensis strains were analyzed. Single nucleotides polymorphisms (SNPs) of the rpoB gene sequences were identified and used to type Brucella melitensis strains.
RESULTS: Six DNA polymorphisms were identified, of which two (nucleotides 3201 and 558) were novel. Analysis of the geographical distribution of the strains revealed a spatial clustering pattern with rpoB type 1 representing European and American strains, rpoB type 2 representing European, African, and Asian strains, rpoB type 3 representing Mediterranean strains, and rpoB type 4 representing African (C3201T) and European (C3201T/T558A) strains.
CONCLUSIONS: We report the discovery of two novel SNPs of rpoB gene that can serve as useful markers for epidemiology and geographical tracking of B. melitensis.
Purpose: The purpose of this study was to identify the knowledge, attitude, and barriers towards the implementation of EBP among physiotherapists in Malaysia.
Methods: A survey was conducted among the members of the Malaysian Physiotherapy Association and other practicing therapists in Malaysia. One hundred and two responses were collected throughout a span of 2 months.
Results: Respondents agreed that EBP is necessary to practice and that it helps in decision making as well as improving patient care. Eighty-one percent of the respondents either agreed or strongly agreed that they had received formal training in EBP. However, 61% of the respondents reported that strong evidence is lacking to support their interventions. Thirty percent of the respondents reported reading <2 articles per month, with 57% stating that they read two to five articles in a typical month. This study also found time constraints, limited access to search engines, and lack of generalizability of research evidence as the top three barriers to implementing EBP.
Conclusion: Physiotherapists in Malaysia had a positive attitude towards EBP and are inclined towards implementing evidence into their clinical practice. They are interested in attending courses to improve their knowledge and skills in EBP.
Materials and methods: The sealers were evaluated before mixing, and after setting using X-ray diffraction (XRD), Energy Dispersive Analysis (EDX) and Scanning Electron Microscope (SEM) techniques. Twenty four extracted teeth were prepared and assigned to four groups according to the moisture conditions: (1) dry: using ethanol as final irrigation, (2) normal: using paper points until the last one appeared dry, (3) moist: using a Luer adapter for 5 s followed by 1 paper point, and (4) wet: the canals remained totally flooded. The roots were filled with MTA Fillapex® and Endosequence® BC and kept in phosphate buffer solution at 37 °C for 10 days. Each root was sectioned transversally and longitudinally. The sealers harvested from longitudinal sections were analysed using XRD. Whilst the transverse sections were analysed using SEM/EDX.
Results: The XRD analysis showed MTA Fillapex composed of Bismuth trioxide, calcium silicate and tricalcium aluminate. The intensity of peaks in the wet condition was reduced. Endosequence BC contained mainly calcium silicate, calcium silicate hydrate, zirconia and calcium hydroxide. The wet condition showed a small increase in hydrated calcium silicate. The EDX analysis showed changes in the elemental concentrations with different moisture conditions. The surface morphology differed with different moisture conditions.
Conclusion: Tested sealers have different constitution that not affected by the degree of moisture. However, it changed their relative quantity.