Oppositional thinking

In the first case, the concepts of urban, city, and society have typically been contrasted with their inverse others - rural, country, and nature. Historically, these oppositional categories actually emerged in the process of urbanization itself, through literary and cultural expressions during the era of industrialization. Such oppositional thinking persists in our own lives. Trying to get far from the city and get away to nature on our vacations, we constantly remind ourselves of these binaries and distinctions. 

Although this may sound contradictory, parents can also support the child s capacity to speak up and sometimes say "No" to them, even though they may not enjoy the argument and opposition. Think about it this way. Parents who treat speaking up as talking back, disagreement as disrespect, and resistance as defiance may be enforcing social obedience to the child s later social cost. Extremely compliant children who cannot say "No" to parents are often ill prepared to say "No" to friends. 

The same G N Lewis who gave us electron dot formulas also suggested a way of think mg about acids and bases that is more general than the Brpnsted-Lowry approach Where Brpnsted and Lowry viewed acids and bases as donors and acceptors of protons (positively charged) Lewis took the opposite view and focused on electron pairs (negatively charged) According to Lewis an acid is an electron pair acceptor and a base is an electron pair donor... 

There were essentially three reasons for this opposition. Firstly, many macromolecular compounds in solution behave as colloids. Hence they were assumed to be identical with the then known inorganic colloids. This in turn implied that they were not macromolecular at all, but were actually composed of small molecules bound together by ill-defined secondary forces. Such thinking led the German chemist C. D. Harries to pursue the search for the rubber molecule in the early years of the twentieth century. He used various mild degradations of natural rubber, which he believed would destroy the colloidal character of the material and yield its constituent molecules, which were assumed to be fairly small. He was, of course, unsuccessful. 

However, one might take the time to think back and to ask if the extensive use of such techniques might not have failed to characterize important lead compounds from plants, and especially medicinal plants. As a matter of fact, a molecule inactive in vitro might, after metabolic transformation in vivo, be effective in abrogating metastasis. The opposite is true, and promising in vitro results have often led to disappointing clinical trials. 

John Dupre Or you d explain human behaviour in terms of the interactions of brain cells. The opposite, downward causation, would be, for example, to say that the behaviour of a person causes their brain cells to move in a certain way. Lisa s example today, I take to be, as she just summarised it, precisely a claim to downward causation. That is to say that the social phenomena actually act causally on the individual, and, of course, to deny what is a very common thesis in the philosophy of social phenomena, which is methodological individualism, which says, and many people, social scientists and philosophers have said - you have to be able to explain social phenomena by looking at the behaviour of individuals. And that s the reductionist view as opposed to the downward causation view, which is an anti-reductionist view. And I think that s certainly one of the standard ways philosophers have understood the debate. 

We should not think that heat is lost only from the copper side. The usual laminate (board material) used for SMT (surface mount technology) applications is epoxy-glass FR4, which is a fairly good conductor of heat. So some of the heat from the side on which the device is mounted does get across to the other side, where it contacts the air and helps reduce the thermal resistance. Therefore, just putting a copper plane on the other side also helps, but only by about 10 to 20%. Note that this opposite copper plane need not even be electrically the same point it could for example just be the usual ground plane. A much greater reduction of thermal resistance (by about 50 to 70%) can be produced if a cluster of small vias (thermal vias) are employed to conduct the heat from the component side to the opposite side of the PCB. 

The two complementary strands of the DNA double helix run in antiparallel directions (Fig. 4-1). The phosphodiester connection between individual deoxynucleotides is directional. It connects the 5 -hydroxyl group of one nucleotide with the 3 -hydroxyl group of the next nucleotide. Think of it as an arrow. If the top strand sequence is written with the 5 end on the left (this is the conventional way), the bottom strand will have a complementary sequence, and the phosphate backbone will run in the opposite direction the 3 end will be on the left. The antiparallel direc-... 

Much more heat energy is released (1) when electrostatic forces of attraction between oppositely charged ions (Mg2+ and O2-) are made (1). Suggest questions require lateral thinking rather than recall . 

There are two reasons to think this situation might occur. The first reason is experimental. As discussed in Sections 2-5, in most experiments on chiral materials, tubules and helical ribbons are observed with only one sense of handedness. However, there are a few exceptions in experiments on diacetylenic phospholipids,144 diacetylenic phosphonate lipids,145 146 and bile.162 In these exceptional cases, some helices are observed with the opposite sense of handedness from the majority. In the work on diacetylenic phospholipids, the minority handedness was observed only during the kinetic process of tubule formation at high lipid concentration,144 which is a condition that should promote metastable states. Hence, these experiments may indeed show a case of biased chiral symmetry-breaking in which the molecular chirality favors a state of one handedness and disfavors a mirror image state. 

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