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Challenges of measuring self-reported exposure to occupational biomechanical risk factors amongst people with low literacy engaged in manual labour: findings from a cross-cultural adaptation and psychometric investigation in an African population with chronic low back pain
Published 2024“…Occupational biomechanical factors are implicated in the aetiology and progression of low back pain (LBP). This study cross-culturally adapted and psychometrically investigated the Occupational Risk Factor Questionnaire (ORFQ) in a low literate Nigerian Igbo population with chronic LBP. …”
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The performances of cationic starch (CS) and sodium carboxymethyl celluloses (CMC-Na) as a dry strength additives (DSA) on A4 wastepaper
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المدخل الاتِّصاليّ وتعليم العربية وتعلّمها للناطقين بغيرها
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Crab and cockle shells as heterogeneous catalysts in the production of biodiesel
Published 2010“…Characterization results revealed that the main component of the shells are calcium carbonate which transformed into calcium oxide upon activated above 700 °C for 2 h. …”
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Biodiesel production via transesterification of palm olein using waste mud crab (Scylla serrata) shell as a heterogeneous catalyst
Published 2009“…Characterization results revealed that the main component of the shell is calcium carbonate which transformed into calcium oxide when activated above 700 �C for 2 h. …”
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Utilization of waste crab shell (Scylla serrata) as a catalyst in palm olein transesterification
Published 2009“…Preliminary XRD results revealed that thermally activated crab shell contains mainly CaO. Parametric study has been investigated and optimal conditions were found to be methanol/oil mass ratio, 0.5:1; catalyst amount, 4 wt. %; and reaction temperature, 338 K. …”
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