Eurostat also includes a long-term unemployment rate, which is defined as part of the unemployed who have been unemployed for more than one year.The main source used is the European Union Labour Force Survey (EU-LFS). It collects data on all member states each quarter. For monthly calculations, national surveys or national registers from employment offices are used in conjunction with quarterly EU-LFS data. The exact calculation for individual countries, resulting in harmonized monthly data, depends on the availability of the data. United States Bureau of Labor statistics
The Bureau of Labor Statistics measures employment and unemployment (of those over 17 years of age) by using two different labor force surveys conducted by the United States Census Bureau (within the United States Department of Commerce) and/or the Bureau of Labor Statistics (within the United States Department of Labor) that gather employment statistics monthly. The Current Population Survey (CPS), or "Household Survey," conducts a survey based on a sample of 60,000 households. The survey measures the unemployment rate based on the ILO definition.The Current Employment Statistics survey (CES), or "Payroll Survey," conducts a survey based on a sample of 160,000 businesses and government agencies, which represent 400,000 individual employers. Since the survey measures only civilian nonagricultural employment, it does not calculate an unemployment rate, and it differs from the ILO unemployment rate definition. Both sources have different classification criteria and usually produce differing results.
Proximal muscle weakness affects muscles closest to the bodys midline, while distal muscle weakness affects muscles further out on the limbs. Proximal muscle weakness can be seen in Cushings syndrome and hyperthyroidism. True and perceived
Muscle weakness can be classified as either "true" or "perceived" based on its cause. True muscle weakness (or neuromuscular weakness) describes a condition where the force exerted by the muscles is less than would be expected, for example muscular dystrophy. Perceived muscle weakness (or non-neuromuscular weakness) describes a condition where a person feels more effort than normal is required to exert a given amount of force but actual muscle strength is normal, for example chronic fatigue syndrome.In some conditions, such as myasthenia gravis, muscle strength is normal when resting, but true weakness occurs after the muscle has been subjected to exercise. This is also true for some cases of chronic fatigue syndrome, where objective post-exertion muscle weakness with delayed recovery time has been measured and is a feature of some of the published definitions. References
Further reading
Saguil A (April 2005). "Evaluation of the patient with muscle weakness". Am Fam Physician. 71 (7): 1327–36. PMID 15832536. == External links ==