Because 802.15.1 uses fhss while 802.11b/g uses direct sequence spread spectrum (dsss), there can be a conflict between devices. an ieee task group known as 802.15.2
<h3>What is spectrum ?</h3>
A spectrum is a state that can fluctuate without gaps along a continuum and is not constrained to a single set of values. After passing through a prism, visible light takes on a rainbow of hues, which is how the term was initially used scientifically in optics.
<h3>Example :</h3>
A rainbow is a natural illustration of a spectrum. The first people to use the word spectrum were optical researchers. When divided by a prism, visible light exhibits a rainbow of hues, which is what they meant by the term. An illustration of how light disperses is the spectrum produced when light travels through a prism.
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I understand the question you are looking for :
because 802.15.1 uses fhss while 802.11b/g uses direct sequence spread spectrum (dsss), there can be a conflict between devices. an ieee task group known as __ was formed to create by which theses two technologies could coexist.
The reason that the missionaries themselves most mentioned was to spread Christianity: they believed that without it, African people could not achieve eternal salvation. Some additional reasons were that the early missionaries wanted to help abolish slavery, spread their cultural values and for political reasons: to be part of their countries colonization of Africa
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When observational data is collected in artificially controlled laboratory conditions, that makes possible to isolate the action/treatment/behaviour we seek to observe from external conditions and to study its effects. In turn, it would be possible to infer casuality relations which are not contaminated by the effect of other variables that could be acting in the real (not controlled) world.
The problem with such experiments is how to generalize the results obtained outside the lab. The behaviour observed there may not happen at all in the real world, or differ in terms of the social conditions of each person's environment: gender, race, religious beliefs, social class, etc.
For example, imagine an experiment in which a woman has to punish one of the other people participating after some interactions. She punishes a man who tried to deceive her. Imagine this woman out of the lab, taking into account that she lives in a very religious patriarchal community. She would never dare to contradict a man in her real world (maybe she would if the social conditions were different). Hence, it could not be concluded that people always act in their better self-interest (punishing the meanest person in this case), but that sometimes self-interest is conditioned by social surrounding features that are present not in the lab.
The Gulf of Tonkin episode, otherwise called the USS Maddox occurrence, drew the U.S. all the more straightforwardly into the Vietnam War. It included two separate showdowns including North Vietnam and the United States in the waters of the Gulf of Tonkin. The Gulf of Tonkin determination influenced the adjust of energy between the President and Congress by giving the President approval, without an authentic statement of war by Congress.
True: living in urban environments can influence an individual's behavior.
