In a small percentage, difficulties with language, executive functions, perception (agnosia), or execution of movements (apraxia) are more prominent than memory problems. Alzheimers disease does not affect all memory capacities equally. Older memories of the persons life (episodic memory), facts learned (semantic memory), and implicit memory (the memory of the body on how to do things, such as using a fork to eat or how to drink from a glass) are affected to a lesser degree than new facts or memories.Language problems are mainly characterised by a shrinking vocabulary and decreased word fluency, leading to a general impoverishment of oral and written language. In this stage, the person with Alzheimers is usually capable of communicating basic ideas adequately. While performing fine motor tasks such as writing, drawing, or dressing, certain movement coordination and planning difficulties (apraxia) may be present, but they are commonly unnoticed. As the disease progresses, people with Alzheimers disease can often continue to perform many tasks independently, but may need assistance or supervision with the most cognitively demanding activities. Middle stage
Progressive deterioration eventually hinders independence, with subjects being unable to perform most common activities of daily living. Speech difficulties become evident due to an inability to recall vocabulary, which leads to frequent incorrect word substitutions (paraphasias). Reading and writing skills are also progressively lost. Complex motor sequences become less coordinated as time passes and Alzheimers disease progresses, so the risk of falling increases. During this phase, memory problems worsen, and the person may fail to recognise close relatives.
The numerical value of true in many programming languages. 1 is the ASCII code of "Start of Header". In science
Dimensionless quantities are also known as quantities of dimension one. 1 is the atomic number of hydrogen. +1 is the electric charge of positrons and protons. Group 1 of the periodic table consists of the alkali metals. Period 1 of the periodic table consists of just two elements, hydrogen and helium. The dwarf planet Ceres has the minor-planet designation 1 Ceres because it was the first asteroid to be discovered. The Roman numeral I often stands for the first-discovered satellite of a planet or minor planet (such as Neptune I, a.k.a. Triton). For some earlier discoveries, the Roman numerals originally reflected the increasing distance from the primary instead. In philosophy
In the philosophy of Plotinus (and that of other neoplatonists), The One is the ultimate reality and source of all existence. Philo of Alexandria (20 BC – AD 50) regarded the number one as Gods number, and the basis for all numbers ("De Allegoriis Legum," ii.12 [i.66]). The Neopythagorean philosopher Nicomachus of Gerasa affirmed that one is not a number, but the source of number. He also believed the number two is the embodiment of the origin of otherness. His number theory was recovered by Boethius in his Latin translation of Nicomachuss treatise Introduction to Arithmetic.