First year experience

PhilipT, Mercatello A, Negrier S, Philip I, Rebattu P, Kaemmerlin P, Gaspard M,Tognier E, Combaret V, Bijman JT, et al. Interleukine-2 with and without LAK cells in renal cell carcinoma the Lyon first-year experience with 20 patients. CancerTreat Rev. 1989,13 [suppA] 91-104. 

First-year experience (Abdnl Aziz et al. 2013c Mohd-Yusof et al. 2014)... 

Gillway, M., Bielenberg, B. (2006). Adapting problem-based learning for the first-year experience. UGRU Journal, 3(Fall 2006), 1-10. 

Finally, a brief introduction to the techniques of synthesis is given in Appendix 3. Students with no synthetic experience beyond the first-year organic chemistry course are advised to skim through this section in order to acquaint themselves with some of the apparatus and terminology used in the description of synthetic procedures. 

Tetryl. In the manufacture of Tetryl, it is usual not to nitrate dime thy laniline directly, but to dissolve it first in coned sulfuric acid and then to nitrate the dimethylaniline sulfate so obtained. Direct nitration of dimethylaniline proceeds so violently that it can be carried out only under specialized conditions. Many years experience of Tetryl manufacture has shown that the ratio of sulfuric acid to dimethylaniline should not be lower than 3 1, since a smaller amount of sulfuric acid may be detrimental to the nitration process. However, the ratio of sulfuric acid to dimethylaniline must not be too high, otherwise Tetryl yield is decreased. Temp must be maintained between 20-45° to avoid sulfonation of the benzene ring. Care must be exercised not to leave any unreacted dimethylaniline prior to introduction of nitric acid, because of the potential violence of the dimethyl-aniline-nitric acid reaction. Consequently, continuous methods of prepn are to be preferred as they inherently minimize accumulation of unreacted dimethylaniline... 

Read, J. R., Kable, S. H. (2007). Educational analysis of the first year chemistry experiment Thermodynamics Think-In An ACELL experiment. Chemistry Education Research and Practice, 8, 255-273. 

The concentration of DDT in the eggs during the second year is shown in Tables V and VI. During the first month of the second year DDT was not fed. However, 24 of the hens that had been on the experiment during the first year still had DDT present in their... 

In hindsight, it was Hertz who, unknowingly, reported the first photoemission experiments in 1887, when he noticed that electrical sparks induced the formation of a second spark in a variety of samples [1], Hertz correctly recognized that the effect was due to UV light generated by the first spark, but he did not understand the nature of the induced spark. In fact he could not have done so, because the electron had not yet been discovered. About ten years later Thomson identified the radiation in... 

It is possible to identify several apparently disconnected themes which led ultimately to the analysis of the chemistry of living cells. Perhaps the first biochemical experiment in Europe may have been that of van Helmont (1579-1644), a physician with a profound interest in chemistry. He grew a willow tree in a weighed amount of earth, watered it for five years and then weighed the earth and the tree again. The... 

In an interesting series of experiments, Claus Wedekind and Manfred Milinski have tested humans (more specifically, first year students) in both the simultaneous and the alternating Prisoner s Dilemma (see Wedekind and Milinski, 1996). In both cases the sub-... 

Panic disorder is typically a chronic condition, but its severity often waxes and wanes over time. Some experience continuous symptoms whereas others have long periods of remission interspersed with periodic outbreaks of panic attacks. When agoraphobia accompanies panic disorder, it usually begins within the first year or so of panic attacks. The course of agoraphobia varies. The severity of the agoraphobic avoidance can either fluctuate with the frequency of panic attacks or remain constant despite changing severity in the panic attacks themselves. 

Rossiter, G. Anamax Twin Buttes oxide plant operating experience-first year. Presented at the Arizona Section, AIME, Hydrometallurgical Division, Spring, 1976. 

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