Unipolarity. Unipolarity in international politics is a distribution of power in which one state exercises most of the cultural, economic, and military influence.

A unipolar world essentially is a scenario where most of the world region’s economic, social, cultural aspects are influenced by a single state/country.

In 1990, Charles Krauthammer declared a “unipolar moment,” arguing that “the center of world power is the unchallenged superpower, the United States.” To many observers, the word “moment” (or “illusion”) seemed an apt description of the durability of U.S. hegemony.

Since the collapse of the Soviet Union, the United States enjoys unparalleled military power. The international system is therefore unipolar. A quarter century later, however, we still possess no theory of unipolarity. Theory of Unipolar Politics provides one.

Some neurons in the vertebrate brain have a unipolar morphology: a notable example is the unipolar brush cell, found in the cerebellum and granule region of the dorsal cochlear nucleus. A third morphological class, bipolar neurons, extend just one axon and dendritic process from the cell body.

Unipolar depression and bipolar depression share the same symptoms with three main differences: 1) Bipolar depression is more episodic than unipolar, 2) Bipolar depression is always on the edge of mania, and 3) Due to the mania risk, bipolar depression treatment is different than unipolar depression treatment.

Unipolarity means that there is sole superpower that is dominant in the international system. Bipolarity means that there are two superpowers as was the case during the Cold War. The two superpowers were USSR and USA before the collapse of the Soviet Union in 1991.

In order to meet the DSM criteria for unipolar depression, you must experience 5 or more of the following symptoms, at least once per day, and for a period that’s longer than 2 weeks: Sadness or irritability, lasting most of the day. Loss of interest in the majority of activities that were enjoyable before.

Unipolar disorders can be caused by a combination of biological, psychological, and social origins of distress. Research theorizes the previously mentioned factors can cause changes in brain function.

A pseudounipolar neuron is a type of neuron which has one extension from its cell body. This type of neuron contains an axon that has split into two branches; one branch travels to the peripheral nervous system and the other to the central nervous system.

Unipolar neurons are typically sensory neurons with receptors located within the skin, joints, muscles, and internal organs. The axons of such neurons are usually long, terminating in the spinal cord. The length of the dendritic trunk varies.