OBJECTIVE Association of mirror movements with special kinds of neural tube defects, particularly cranial dermal sinus and cervical myelomeningocele, is extremely rare. We have tried to explain the probable pathophysiology underlying this rare condition. CLINICAL PRESENTATION Two cases are presented. Case 1: A right-handed 3-year-old boy brought to the outpatient clinic for evaluation of mirr...

The study aimed to investigate naïve beliefs regarding the dynamic and static behavior of reflections. In the first three experiments, participants in the study made predictions about the correspondence between real and reflected movements or about the orientation of the reflection of a static object placed in front of a mirror. In Experiments 1 and 2, paper-and-pencil tasks were used and in Ex...

The goal of this study was to explore whether the ability of precise mirror-inverted movements can be learned and improved with the device Mirroprep and whether practice success can be transferred to the clinical situation. Three groups of students at different levels of dental study and different achievement levels were asked to perform a drawing exercise with indirect vision using Mirroprep. ...

The next major space-borne observatory, the James Webb Space Telescope, will be a 6.6M field-biased, obscured, three-mirror anastigmat (TMA). Over the used field of view, the performance of TMA telescopes is dominated by 3(rd) order misalignment aberrations. Here it is shown that two dominant 3(rd) order misalignment aberrations arise for any TMA telescope. One aberration, field constant 3(rd) ...

Many tasks in our daily life demand not only the use of different fingers of one hand in a serial fashion, but also to alternate from one hand to the other. Here, we investigated performance in a bimanual serial reaction time task (SRTT) with particular emphasis on learning-related changes in reaction time (RT) for consecutive button presses for homologous index- and middle fingers. The bimanua...

In plastic surgery, patient photography is a vital component of clinical, educational, legal, and research documentation. Optimal acquisition of photographic data requires a dedicated photography studio or a three-dimensional anatomic scanner, both of which are financially impractical for most clinicians. Simplified photo standardization is proposed for use in random clinical settings by using ...

Optical aberrations limit resolution in biological tissues, and their influence is particularly large for promising techniques such as light-sheet microscopy. In principle, image quality might be improved by adaptive optics (AO), in which aberrations are corrected by using a deformable mirror (DM). To implement AO in microscopy, one requires a method to measure wavefront aberrations, but the mo...

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A watt-level output passively mode-locked Tm:LuAG bulk laser with an InGaAs semiconductor saturable absorber mirror (SESAM) is demonstrated for the first time. A maximum average output power of 1.21 W at 2022.9 nm has been achieved with a pulse duration of 38 ps and a repetition rate of 129.2 MHz. The results indicate the potential of Tm:LuAG crystals as candidate for realizing high power ultra...

A passively switched Ho(3+), Pr(3+) codoped fluoride fiber laser using a semiconductor saturable absorber mirror (SESAM) is demonstrated. Q-switching and partial mode-locking were observed with the output power produced at a slope efficiency of 24% with respect to the absorbed pump power. The partially mode-locked 2.87 μm pulses operated at a repetition rate of 27.1 MHz with an average power of...