Amblyopia Save Amblyopia, also called lazy eye, is a disorder of sight due to the eye and brain not working well together. People typically have poor stereo visionhowever, since it requires both eyes. Those with amblyopia further may have, on the affected eye, poor pattern recognition, poor visual acuityand low sensitivity to contrast and motion.
The commander is responsible for operating the R radio transceiver which entered service together with the T in Unlike in the T, the radio is installed next to the gunner which frees up space for the commander. The R radio operates in the It could be tuned into 96 frequencies within the limits of its frequency range.
Inthe radio was swapped out for a newer and much more advanced R radio. The R radio had a frequency range of between 20 MHZ to It could be tuned to any frequency within those limits via a knob, or the commander could instantly switch between four preset frequencies for communications within a platoon.
The activity of sorting shapes thus becomes a life skill as well. the early absorbent mind helps create, at about age three, the child's basic human abilities. In the second phase of the child's development, from age three to six, the absorbent mind continues to function but now appears to be more specific. Sound cues such as wind. Effect of Binocular Cues Removal on Skill Abilities How the removal of binocular cues affects males and females skill ability performance Abstract: To test whether skill ability was impaired when binocular cues were removed. Managers plan, direct, coordinate and evaluate the overall activities of enterprises, governments and other organizations, or of organizational units within them, and formulate and review their policies, laws, rules and regulations.
It had a range of between 16km to 50km. The R had a novel, but rather redundant frosted glass prism window at the top of the apparatus that displayed the operating frequency.
An internal bulb illuminated a dial, imposing it onto the prism where it is displayed. The R had a modular design that enabled it to be repaired quickly by simply swapping out individual modules. Unlike the rest of the dome-shaped turret of the T, the casting around the commander's station was shaped in such a way that it is devoid of any vertical sloping or rounding whatsoever, which was necessary to enable the commander's rotating cupola to be installed.
This also meant that any debilitating effects of the shaping of turret lack of headroom, for instance do not apply on him. The commander's cupola superstructure is secured to the turret with screws rather than bolts like on the T, but a new bolted cupola superstructure was implemented in the T obr.
The cupola is mounted on a race ring. The fixed part constitutes just under half of the total size of the cupola, while the other half is occupied by the semicircular hatch. The hatch opens forward, which is quite convenient for when the commander wants to survey the landscape from outside - perhaps with a pair of binoculars - because the thickness of the hatch makes it a superb bulletproof shield to protect the commander from sniper fire.
The hatch has a thickness of 30mm and is curved. There is also a small porthole in the hatch. It is meant for a panoramic periscope tube for indirect fire, but it can be opened to provide ventilation when the tank is fording a moderately deep river 1.
It is necessary to open the port when doing this as the external engine air intake must be shut off and rerouted to the internal air intake. If the porthole is not opened, the engine will deplete the air inside the crew compartment faster than air can enter through the various small gaps in the tank and eventually asphyxiate the crew.
As befitting his tactical role, the commander's general visibility is facilitated by two TNPO periscopes on either side of the primary surveillance periscope in the fixed forward half of the cupola, further augmented by two more R periscopes embedded in the hatch, aimed to either side for additional situational awareness.
Overall, this scheme could be considered more than adequate, but it was clearly deficient if compared to the much more generous allowance of periscopes and vision ports found on NATO tanks.
The four periscopes in addition to the TKN-type periscope aimed directly forward gives the commander a good view of the battlefield in an arc spanning the 4 o'clock position to the 8 o'clock position.
There is no rearward-facing periscope, but the commander can look backward by simply turning the cupola to one side and looking back through one of the R periscopes.
The use of periscopes instead of direct glass vision blocks presents pros and cons - for one, the lack of any direct vision means that the viewer's eyes is protected from machine gun fire or glass specks if the device is destroyed, but a bank of periscopes offer a much more limited panorama than vision blocks like the type found in the commander's cupola on the M60 tank.
Due to the combination of nightvision equipment with regular daytime functionality, the optical paths from the two eyepiece lenses had to be merged to form a single aperture lens. This means that the periscope is no truly binocular, but pseudo-binocular.
Compare the two photos below: With only one aperture, the user has very little depth perception. This makes it rather difficult to estimate the distance to a target by eye, but the commander has a stadia rangefinder for that anyway. The TKN-2 had an active night channel relying on the infrared light emitted from the OU-3 IR spotlight attached to the periscope aperture to provide a limited degree of night vision to the commander.
With a nominal viewing range of only about to m, the TKN-2 was all but useless for serious target acquisition at night, serving only to give away the tank's position the moment the spotlight was turned on.
Performance could be improved with mortar-delivered IR flares, of course, but that doesn't count as an intrinsic merit of the device itself. It is not known what the TKN-2 looks like, but this unidentified periscope could be it.
The best evidence that this is the TKN-2 is shape of the housing, which bears a striking resemblance to the TKN-3, the power cables, and the single aperture lens, seen in this photo.
Therefore, it must be a TKN Due to the fact that the periscope is unstabilized, identifying a tank type target at a distance is very difficult while on the move over very rough terrain.
The left handle has a thumb button for activating the OU-3 spotlight. The thumb button must be held to keep the light on. This allows the commander to illuminate his target intermittently or to flash friendly forces. To toggle the spotlight on or off, the commander must flip a toggle switch on the cupola race ring.
The OU-3 is a xenon arc lamp with an IR filter.Human Physiology/Print Version. From Wikibooks, open books for an open world This has a destabilizing effect, so does not result in homeostasis.
the recall may be assisted by the provision of retrieval cues which enable the subject to quickly access the information in . Binocular cues give us our natural ability to determine where in space an object sits relative to our own body - our sense of depth perception enables us to discern where to place our feet, if the.
Problem detection is the process by which people first become concerned that events may be taking an unexpected and undesirable direction that potentially requires action. Previous accounts [e.g. My dissertation research is in how to increase opportunities for children with mixed abilities to equally, actively, and meaningfully participate in the same setting with the assistance In this paper, I describe my current work as a PhD student in HCI.
To show or hide the keywords and abstract of a paper (if available), click on the paper title Open all abstracts Close all abstracts. THE CONCISE DICTIONARY OF PSYCHOLOGY With more than 1, entries, this new edition of The Concise Dictionary ofPsychology is comprehensive, clear and user-friendly.