Weird

An observation of the results of cross-validation revealed that all but one of the compounds in the dataset had been modeled pretty well. The last (31st) compound behaved weirdly. When we looked at its chemical structure, we saw that it was the only compound in the dataset which contained a fluorine atom. What would happen if we removed the compound from the dataset The quahty ofleaming became essentially improved. It is sufficient to say that the cross-vahdation coefficient in-CTeased from 0.82 to 0.92, while the error decreased from 0.65 to 0.44. Another learning method, the Kohonen s Self-Organizing Map, also failed to classify this 31st compound correctly. Hence, we had to conclude that the compound containing a fluorine atom was an obvious outlier of the dataset. 

Returning to datasets from chemoinformatics, we may conclude that the first case stands for the complete degeneracy of the dataset, when all but one data object are redimdant. The second case corresponds to the weird situation in which all the objects of the dataset are outliers. We have thus arrived at the extreme extents of the dataset complexity. 

It may look weird to treat the Singular Value Decomposition SVD technique as a tool for data transformation, simply because SVD is the same as PCA. However, if we recall how PCR (Principal Component Regression) works, then we are really allowed to handle SVD in the way mentioned above. Indeed, what we do with PCR is, first of all, to transform the initial data matrix X in the way described by Eqs. (10) and (11). 

The next method Strike has for semi-direct amination is really weird, Strike is really exposing Strike s ignorance of chemistry with this dog. But if one looks hard at the articles cited, the potential is there. The authors came up with this little procedure that produced vicinal diamines out of alkenes [83]. Later they found that if they did a couple of things different, they would end up with a monoamine with the majority product being at the beta carbon. The following is a conjoining of the two paper s experimentals ... 

The benzylchloride compound made in the previous recipe can be converted to piperonal or benzaldehyde using a chemical called hexamine [137 p817, 37 p700, 136]. Hexamine, also known as methenamine or hexamethylenetetramine, is a weird looking chemical that is easily made from formaldehyde but is better off being purchased. 

The other amazing thing about DCM is that the crystals produced in it are weird. Crystals produced by ether are little and powder-puffy. Nothing wrong with that per se. But the crystals produced in DCM are large, crystalline and sparkly. And although there shouldn t be a difference, SWINS swears the effects are more powerful. 

For the purposes of understanding this concept and formula, there s nothing mathematically significant about the square root of the flow, or the NPSHr to 1 power. These mathematical manipulations simply give us Nss values that are e. y understood and recognizable. For example, the health inspector might j. . a restaurant s cleanliness on a scale from 1 to 100. We might ask you to rate this Lc on a scale from 1 to 10. Those are easy numbers to deal with. How would yc- this book on a scale from 2,369 to 26,426,851 This doesn t make sense. Likewi , the mathematical manipulations in the Nss formula serve simply to convert weird v . into a scale from 1,000 to 20,000 that cover most impellers and pumps. Values at... 

In November 1919 Einstein became the mythical figure he is to this day. In May of that year two solar eclipse expeditions had (in the words of the astronomer Eddington) confirm[ed] Einstein s weird theory of non-Euclidean space. On November 6 the president of the Royal Society declared in London that this was the most remarkable scientific event since the discoveiy [in 18461 of the predicted existence of the planet Neptune. ... 

Worse was to come. Boltzmann in 1872 made the same weird statistical equality hold for every mode in a dynamical system. It must, for example, apply to any internal motions that molecules might have. Assuming, as most physicists did by then, that the sharp lines seen in the spectra of chemical elements originate in just such internal motions, any calculation now of Cp/C would yield a figure even lower than 1.333. Worse yet, as Maxwell shatteringly remarked to one student, equipartition must apply to solids and liquids as well as gases Boltzmann has proved too much. ... 

The reality—Sake Sunrise, and the menu s other mood drinks, is a New Age wine cooler, a spa cocktail. But it s good, and it grows on you. You can feel it segue from weird liquor to nice, new taste like a smooth D.J. working two LPs. 

It sounds really weird, but it s been selling well, she said. I wanted to do a drink with chai. I thought, It s got to go with something. Bourbon. It smells earthy and woody. I had a fun summer developing that cocktail. ... 

First, with respect to the type of basis functions used in G, smoothness is by no means restrictive. As it is intuitively clear and proved in practice, weird nonsmooth basis functions have to be excluded from consideration but beyond that, all normal bases are able to create smooth approximations of the available data. Accuracy is not a constraint either. Given enough basis functions, arbitrary accuracy for the prediction on the data is possible. 

Cortie, M.B. (2004) The Weird World of of Nanoscale Gold. Gold Bulletin, 37, 12-19. 

Of course, Feynman was right once again. To us oversized humans, the quantum mechanical world of the very small seems weird. However, quantum mechanics beautifully explains the behavior of atoms and predicts many oddities that have turned out to be true. Using quantum mechanics, many properties of atoms can be calculated. For example, chemists can now predict the shape of a molecule when atoms combine (molecules will be explored in more detail in Chapter 6). Another success was the prediction of the existence of a never-detected particle called the positron, a positively charged electron. Years after the prediction was made, experimental physicists discovered the particle. 

Yeah she says, her eyes lighting up. My mum gave it to me after we went to see The Sword in the Stone. I don t think she knew how weird the whole thing is, though. I was only about twelve. And it was sad, in a bitter sort of way. I remember I wasn t expecting that, the bitterness. ... 

Balta and Vonk [22], p. 15) and on several modern technologies17. The theorem deals with projections and slices. It explains the weird information on structure that we retrieve if we study the scattering intensity cut from a pattern along a line that is extending outward from the center of the pattern. In fact, the respective intensity curve is called a slice (or a section). Last but not least, the theorem reveals an elegant way to overcome the recognized problem. 

In general, the high-frequency components are usually referred to as noise and the low-frequency component is called the ripple. Together they constitute the converter s Noise and Ripple (N R), which is also sometimes called by rather weird names such as PARD (I still don t see any need to remember what that stands for). 

In general, we always need to put a scope probe on the input pin of a switcher IC and confirm that the ripple is within 1% of the input voltage. Otherwise chances are high the control sections will exhibit weird behavior. If not on one prototype, on another Without an actual measurement, you will never know if the problem is just waiting to happen. 

Note that this is an entirely different problem from the I) > 50% foldback issue discussed elsewhere in this book, because that is really related to a rather weirdly designed first level current limit of this family of ICs. 

Question 2 Is my equipment somehow responsible That is sadly often the case. For example, some electronic loads can show weird glitches in the load profile they present to the converter under dynamic conditions. For example, if we are doing step load testing from 10mA to 200mA, all may be fine. But if we go from 0mA to 200mA, and see an output overshoot/undershoot, it could also be because of the electronic load. We may need to do... 

From Dr. Vetter s reports, Dr. Mertens must know that healthy inmates were being infected with typhus so as to test Farben s Methylene Blue "cure." But what did Hoerlein know Mertens reports to him were weirdly brief, saying nothing of "patients" or "cases." But "experiments" were mentioned — plus the fact that many of the subjects of the "experiments" had died. 

Idealized sd-hybrids replace sp-hybrids for skeletal hybridization, with resulting weird (non-VSEPR) bond angles. 

I d just walk away. After I told on them a couple million times, they stopped. Now they don t tease me. A lot of other people bring their own food to school, too, so I don t feel weird. 

I could feel and sense input from all manner of environmental elements and food and so forth. At the time I had no context for what was happening, and felt quite mad. Some of what I considered madness at the time was actually my having been acutely perceptive and acutely accurate about what I felt and sensed. Those of us with chemical and electromagnetic field sensitivities have extra senses. I have no way to accurately describe these to people who have never experienced it. It is a true advantage in many respects, but it s weird being that odd person who can sense trouble—that the power lines are leaking or the gas line is leaking. 

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