Hides structure

Although a systematic method exists for naming oxoacids, many such laboratory reagents are well recognized by their common names (e.g. sulfuric acid, nitric acid, nitrous acid). A problem with many common names is that they often hide structural information and, most importantly, do not indicate the number of ionizable hydrogen atoms. Where large families of acids exist, e.g. the sulfur oxoacids, systematic names are usually more helpful than traditional ones. 

Experimental detection of quantized transition states has been impeded by the difficulty of carrying out experiments in which only one or a few values of the total angular momentum J contribute to the signal. Otherwise the smearing effect of many values of J will tend to hide structure due to quantized transition states. Nevertheless, in the past five years, sophisticated measurements have supplied evidence for the influence of quantized transition states on a number of reactions. 

Slaton, A. E. (2011). Metrics of marginality How studies of minority self-efficacy hide structural inequities. In Conference Proceedings Annual Meeting ofthe American Society for Engineering Education, Vancouver, B.C. 

Don t worry about people hiding problems. It is very hard to hide structural SMS problems. The diagnostic approach looks at the SMS from so many angles that it would be very difficult to hide all evidence of poor SMS performance. 

We now consider the connection between the preceding equations and the theory of Aharonov et al. [18] [see Eqs. (51)-(60)]. The tempting similarity between the structures of Eqs. (56) and (90), hides a fundamental difference in the roles of the vector operator A in Eq. (56) and the vector potential a in Eq. (90). The fomrer is defined, in the adiabatic partitioning scheme, as a stiictly off-diagonal operator, with elements (m A n) = (m P n), thereby ensuring that (P — A) is diagonal. By contiast, the Mead-Truhlar vector potential a arises from the influence of nonzero diagonal elements, (n P /i) on the nuclear equation for v), an aspect of the problem not addressed by Arahonov et al. [18]. Suppose, however, that Eq. (56) was contracted between (n and n) v) in order to handle the adiabatic nuclear dynamics within the Aharonov scheme. The result becomes... 

Structure. The stmctures of hides and skins are dependent on the needs of the animal and its environment. The functions of an animal s skin include protection from predators and infection, and maintenance of body temperature. The relative importance of these functions depends on the animal. Methods by which the skin accomplishes these functions is the same for most mammals. 

Figure 6 Polyhedral view (to scale) of structure types ai(a), a2(b) and two orientations of 03(0 and d) for CtqMu. The muon is at the end of the dangling bond and in views (a) and (b) lies in the plane of the paper. For views (a), (b) and (c) four edge carbon atoms are also in the plane of the paper. The other visible atoms are above the paper. Each atom above the paper hides a corresponding atom below the paper except for type 03 where in the region of the muon the undistorted structure below the plane is shown with dashed lines. This is useful since it clearly shows the nature of the distortion. View (d) is an orientation of type 03 to illustrate that the distortion is similar to the other type a structures...

Leather is the material made from animal skin by the process of tanning, which entails chemically altering the composition of the skin so as to make it durable and resistant to decay. Leather is therefore not a protein but a protein derivative. Although the tanning process alters the composition of skin, leather retains the fibrous structure and utilitarian functionality that make skin suitable for multifarious applications. Shelter, clothing, and decorative objects made from leather are, unlike skin or hide, stable to physical, chemical, and biological decay under dry or wet conditions (O Flaherty et al. 1965 ... 

Bremser produced tables of these HOSE codes from NMR work that was carried out at BASF in Germany. Most modern carbon prediction routines still use this HOSE code today (albeit slightly modified from the original). Modem software hides all the HOSE code generation in the background so all you do is draw a structure and press the predict button and all the chemical shifts are calculated. 

Predation (e.g. by foxes and birds of prey) may also be a serious cause of mortality in free-range husbandry. Foxes can be kept away with a solid fence, which can be supplemented by an electric fence. Birds of prey are not a big problem for poultry houses that are closed at night and free of holes. However, keeping birds of prey such as the hawks away is not easy, especially for farms surrounded by forest or in a landscape with a lot of trees. In such situations, low structures should be provided as hiding places for the hens. 

Let s go back to the classification of the amino acid side chains (chapter 10). Several of these are hydrocarbons greasy, fat-like side chains. Look at the side chains of leucine, isoleucine, valine, and phenylalanine as examples. Eats and water do not mix. Eats are termed hydrophobic, water-hating. It follows that these side chains will try to do what they can to get out of contact with water. The obvious way to do this is to hide in the center of the protein structure, where they may enjoy the company of like-minded amino acid side chains and avoid that of water molecules—sort of a molecular ethnic cleansing. 

Molecules with sharply demarcated regions of hydrophilic and hydrophobic character are known as amphipathic molecules. Soaps provide an example. These form a variety of interesting structures. Such molecules may be thought of as schizophrenic, simultaneously struggling to satisfy two opposing natures. In water, amphipathic molecules will act so as to expose their hydrophilic structures to the aqueous environment while trying to find ways to hide their hydrophobic structures from it. One possibility among several is to form bimolecular layers or, more simply, bilayers. 

---