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Article 15 requires all registered religious organisations receiving money or other support from foreign donors to notify the Justice Ministry . Together they have combined creative design , state-of-the art video imaging , and computer technology to allow students and amateur scientists to explore the microscopic realm , capture images , make movies , and perform time-lapse investigations with a simple click of the mouse . They are often forced to assume an awkward work posture such as the head bent over the eye tubes , the upper part of the body bent forward , the hand reaching high up for a focusing control , or with the wrists bent in an unnatural position . There has been a tremendous explosion in the popularity of confocal microscopy in recent years , due in part to the relative ease with which extremely high-quality images can be obtained from specimens prepared for conventional optical microscopy , and in its great number of applications in many areas of current research interest . Differential Interference Contrast Digital Image Gallery - Thin unstained , transparent specimens are excellent candidates for imaging with classical differential interference ( DIC ) microscopy techniques over a relatively narrow range ( plus or minus one-quarter wavelength ) of bias retardation .