Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Searching for Authenticity

Every morning when I... take the medication 1 feel like I m putting on my lifejacket for the day and I can just bob in the ocean. I m not flying into the sky. I m not lifting off. And when I m just bobbing in the ocean. .. I don t feel like I m living... . I don t feel like I have an identity. [Pg.95]

like all objects, assume meanings that are socially imposed, vary across groups and cultures, and [Pg.97]

Fm going to be someone who s going to be taking care of other people or trying to make the world a better place through my profession, and yet I am, , or could potentially become as sick as these people standing here. And what s the difference What s the difference between the two realities Which person am I Am I the sick person or am I the professional  [Pg.100]

Here is how a teacher described his fears about taking the first pill  [Pg.100]

When you take these pills [you] somehow alter the structure inside you, which is not a simple structure. [Pg.100]


Perhaps most important, Chemical Risk provided the basis for a call for scientific collective action and increased public awareness. Future Nobel laureate Joshua Lederberg (1969) noted in one of his regular Science and Man columns that we [biologists] all have a basic responsibility to go beyond an emotional expression of concern to use it to energize the search for authentic scientific measures of potential hazards and for means to neutralize them. We have a great deal of taxing work ahead in trying to set up scientifically valid and politically useful criteria from laboratory studies for these elusive but all-important hazards. ... [Pg.88]

Considering the long saga of hydrocarbon chemistry, it is surprising that two new classes of hydrocarbon - ionically dissociative hydrocarbons and hydrocarbon salts - have been discovered in the last decade. The syntheses of authentic samples as analytically pure solids have revealed the very existence of such novel hydrocarbons in an unquestionable way, but the investigation of their basic features is just in the inchoate stage. The search for such novel hydrocarbons depends primarily on the synthesis and examination of highly stabilized hydrocarbon cations and anions. As mentioned above, until now such elaboration has been concentrated on the carbocation side, and examination of the carbanion moiety has only just started. [Pg.216]

Although it is impossible to sort out the precise connections among genuine selves, theories of self, and unique life experiences, my interviewees searched within themselves to reclaim or restore lost feelings caused by illness or by medications. Despite different attitudes and life experiences, they shared the common goal of realizing a valued, authentic identity. This search for self is shared by all of us as we repeatedly test, confirm, and revise who we are through experience and experimentation. [Pg.125]

CH2N2 with 100% 3deld. Those samples were dissolved in CH2CI2 in concentrations 1.4mg/mL and injected for GC-FID and GC-MS analysis. The identification of methylated betulinic acid in extracts was done with use Wiley and NBS peak matching library search system. Authentic standard of the betuhnic acid and data reported in the literature were also used for further identification as described. [Pg.186]

The reproducibility and reliability of RIs makes it possible to create RI libraries and the identification can be achieved without authentic reference chemicals. The reliability and simplicity of RI monitoring is increased significantly by using a computer program that searches for the RI pattern, calculates the RIs for all peaks in the chromatogram, and then compares the indices with the library data. In addition to the identification of target chemicals, RIs can also be used to locate the interesting peaks between different kinds of GC-based analytical techniques (65). In this way, it is possible to ensure that all GC-based techniques used for identification focus on the same peaks even in samples with a complex mixture of chemicals. [Pg.191]

For Statement 3, assume that the requirement of the recipient on disputes is error-free. Thus, whenever an execution of authentication with the recipient s entity leads to acc = TRUE, the recipient will win a subsequent dispute in court. A computationally unrestricted attacker comprising the recipient s entity can search for a sequence of messages that would lead to acc = TRUE if the correct recipient s entity received them in authentication. Then this attacker can win disputes deterministically. Hence the requirement of the signer can only be fulfilled against computationally restricted attackers in this case. [Pg.124]

Identification of known compounds The most common application of NMR in forensic analysis is its use in the identification of materials in drug seizures. For this purpose the analyst compares the NMR spectra for the exhibit with those for authentic materials, in much the same way as for IR spectra, allowing the rapid identification of illicit drugs. When the spectra being compared are from spectrometers of different magnetic field strengths, or if they are determined using different solvents or at different concentrations, the analyst must be aware that the appearance of spectra may appear to be very different. Because these kinds of differences are usually minor for NMR spectra (which are also much simpler in appearance than spectra), most commercial spectral libraries are for spectra. However, modern spectrometers allow users to create, maintain, and search their own proton spectral libraries. Also, a number of books are available that contain collections of proton spectra of chemicals of forensic interest. [Pg.3361]


See other pages where Searching for Authenticity is mentioned: [Pg.95]    [Pg.97]    [Pg.99]    [Pg.101]    [Pg.103]    [Pg.105]    [Pg.107]    [Pg.109]    [Pg.111]    [Pg.113]    [Pg.115]    [Pg.117]    [Pg.119]    [Pg.121]    [Pg.123]    [Pg.125]    [Pg.268]    [Pg.133]    [Pg.95]    [Pg.97]    [Pg.99]    [Pg.101]    [Pg.103]    [Pg.105]    [Pg.107]    [Pg.109]    [Pg.111]    [Pg.113]    [Pg.115]    [Pg.117]    [Pg.119]    [Pg.121]    [Pg.123]    [Pg.125]    [Pg.268]    [Pg.133]    [Pg.137]    [Pg.17]    [Pg.119]    [Pg.32]    [Pg.370]    [Pg.155]    [Pg.221]    [Pg.81]    [Pg.157]    [Pg.587]    [Pg.4]    [Pg.320]    [Pg.135]    [Pg.159]    [Pg.284]    [Pg.185]    [Pg.71]    [Pg.43]    [Pg.36]    [Pg.174]    [Pg.32]    [Pg.58]    [Pg.60]    [Pg.1968]   


SEARCH



Authenticity

© 2024 chempedia.info