OBJECTIVE Studies from industrialized countries show that musculoskeletal disorders (MSD) occur commonly in sonographers. However, little is known about sonographers in China, where the awareness of ergonomics and MSD, workload, and available equipment/facilities may differ. We aimed to investigate the prevalence of MSD and associated risk factors in sonographers in central China. METHODS A c...

ଝ Influencia del desprendimiento seroso macular en la eficacia del tratamiento con ranibizumab en las oclusiones venosas retinianas Dear Sir: Venous occlusions are a frequent cause of retinal vascular disease , only exceeded by diabetic retinopathy. 1 Macular edema constitutes the main cause of visual acuity loss (VA) and accordingly the therapeutic approach aims at reducing said edema by means...

Airborne laser scanner (ALS) data are used operationally to support field inventories and enhance the accuracy of forest biomass estimates. Modelling the relationship between ALS and field data is a fundamental step of such applications and the quality of the model is essential for the final accuracy of the estimates. Different modelling approaches and variable transformations have been advocat...

recombinant human interferon alpha 2a (rhifn α -2a) production and cell growth were monitored in a set of genetically modified e. coli strains (msd1519, msd1520, msd 1521, msd 1522, msd 1523) producing rhifn α -2a. the growth was followed at od 600 nm, changes in cell physiology were detected by pyrolysis mass spectrometry (pyms) of cell biomass and recombinant protein production was determined...

Introduction The increasing practice of interventional fluoroscopy in diagnosis and treatment of cardiovascular disease has risen attention to improve radiation protection of patients and cardiologists in these relatively high dose techniques. Therefore, nowadays there is an emphasis on the measurement of radiation dose received by patients and cardiologists arising from the relevant procedures...

Changes in physical activity levels and increases screen time across different cohorts may affect young children’s motor skill development (MSD). This study examined cohort differences MSD China. Four-year-olds living Shanghai Guizhou province were assessed, individual sessions, 2013 (n = 230) 2017 446). Controlling for age, parental education, gender, height, weight, overall development, score...

CONTENTS 1. Introduction 2. Symbolic substitution (SS) rules for modified-signed-digit (MSD) addition and subtraction 3. Optical implementation of SS rules 4. Parallel MSD multiplication 4.1. MSD multiplication algorithm 4.2. Optical implementation of the MSD multiplication 5. MSD convergence division 6. Conversion between binary and MSD representations 6.1. From binary code to MSD code 6.2. Fr...

We consider a nonpreemptive single-machine scheduling problem to minimize mean squared deviation of job completion times about a common due date with maximum tardiness constraint (MSD/Tmax problem), where the common due date is large enough so that it does not constrain the minimization of MSD. The MSD/Tmax problem is classi®ed into three cases according to the value of maximum allowable tardin...

background: the primary objective of this study was to determine the association between risk factors and the prevalence of musculoskeletal disorder (msd) among auto repair mechanics in klang valley, malaysia. methods: overall, 191 mechanics from eight auto repair centers in klang valley, malaysia were stratified sampling as participants of this study. a modified version of the general standard...

BACKGROUND Underreporting of occupational diseases (OD) has been quantified, in particular in the United States, but little information is available in other countries. The aim of this study was to evaluate underreporting of musculoskeletal disorders (MSD) in France in 2009. METHODS We calculated an indicator that approximated the underreporting rate of MSD in 10 regions of France. Two databa...