Warren procedure

Table I lists nonhormonal plasma sialoglycoproteins, and when known, their molecular weight, number of sialic acid residues per mole, and carbohydrate content. Sialic acid content was estimated by either the Warren procedure (1959) or by treatment with microbial sialidase and measurement of sialic acid release and concomitant change in electrophoretic mobility or isoelectric point. Some of the physical and biological changes observed in the plasma sialoglycoproteins after removal of sialic acid residues are described below.

B. A. D AHeva, Procedure and Chartsfor Estimating Exhaust Gas Quantities and Composition, General Motors Laboratory Report 372, Warren, Mich.,... 

The study of the peak shape gives important information relative to the microstructure of the sample even when it is included in the Rietveld code. Actually, in order to perform the Warren-Averbach analysis or other mi-crostructural studies, it is not necessary to use the Rietveld analysis, but it is often sufficient to operate with less complex, non-structural peak fitting procedures. 

There are various testing procedures, such as the Warren Spring Rotating Flask test (WSL test, Labofina test). Institute Francais du Petrole flow test (IFF test), Mackay-Nadeau-Steelman test (MNS test), EXDET, and other procedures. 

Hackenthal48 studied the contents of KDO and NeuAc in 19 strains of Neisseria meningitidis. Following acid hydrolysis of acetone-dried cells, both KDO and NeuAc were separated from the mixtures by adsorption on Dowex-1 X-8 ion-exchange resin, and were eluted together by 0.6 M formic acid. The sum of periodate-TBA reactivity was determined by Warren s procedure.13 The content of NeuAc was de-... 

Only the guideline of Warren Springs, U.K., and the VDI-Guideline contain detailed descriptions of the sampling procedure. 

Because large magnitudes of broadening were observed in PTFE, even for slowly cooled specimens, it was necessary to use line-width standards. The two materials used were annealed LiF and a diluted solid mixture of ammonium hydrogen phosphate. Data analysis proceeded by Fourier analysis of multiple orders, the well-known Warren-Averbach procedure. " Values of the domain size as measmed experimentally and with a correction using renormalized cosine coefficients (RCC), are given in Table 1.2. 

Miles, JCS 1931 2532-42 (Formation and characterization of crysts of LA and some other initiating expls) 5)K.S.Warren, PATR 1152 (1942), "Study of the Action of Lead Azide on Copper 6)J.Fleischer J.B. Burtle, USP 2,421,778 (1947) "Initiating Explosives 7)Wm.H.Rinkenbach A.J. Clear, PATR Rev 1(1950), "Standard Laboratory Procedures for Sensitivity, Brisance and Stability of Explosives 8)U.S.Military Specification MIL-L-3055, Amend 1(1952) (Requirements and tests for dextrinated lead azide) 9)J-Bernstein, GLR 51-HI-2332, Pic Arsn (1952) "Hygroscopicity of Dextrinated Lead Azide 10)J.W.Lavitt, PATR 1957 (1953), "An Improved Microscopic Method for the Determination of the Crystal Size Distribution of 2-Micron RDX" 11)F.P. Bowden K.Singh, Nature 172, 378(1953) (Size effects in the initiation and growth of explosives) 12)J.W.C.Taylor, A.T.Thomas... 

Experimental procedures for detn of burning rates of rocket proplnts are practically identical with those described under "Burning and Burning Characteristics of Propellants for Artillery Weapons and Small Arms The method described by Warren(Ref 25,PP 90-1) uses a modified Crawshaw strand-burning apparatus. This method is used with solid strands ca 1/8 in diam and 7 long and which are coated with a plastic so that they burn from one end only... 

Figure 2 shows the results of the non-linear fitting procedure on a part of the equator, first and second layer lines of TMV. The diffraction pattern used was taken by Dr. S. Warren and Dr. G. Stubbs at the Max-Plank-Institut in Heidelberg, Germany. This pattern was taken on a Guinier camera and the arcsdue to disorientation are not circular. The natural coordinate system (3)of the camera (rather than polar coordi-nates)was used in the deconvolution procedure. The standard... 

CONTENTS Preface, Brian Hatton. Applications of Ring Strain in Natural Product Synthesis, James D. White and Nadine Chauyi Lee. Uses of the Vacuum Gas-Solid Reaction Procedure in Synthesis, W. E. Billups and Benny E. Amey, Jr. Polysubstituted Cubanes Towards Complete Systematic Substitution of the Cubane Nucleus, John Tsanaktsidis. A Personal Perspective on Norbomenes, Cyclobutenes, and Other Ring-Strained Dienophiles in Organic Synthesis, Ron N. Warrener. Synthetic Studies Related to Fullerenes and Fullerene Fragments, Goverdhan Mehta and H. Surya Prakash Rao. Index. 

In a series of pubhcations Warren et al. demonstrated the usefulness of 1,3-chirality transfer in the context of Type M rearrangements to synthesize 1,4,5-stereo triads with -configured double bonds (Scheme 90) [209-211]. Based on their successful work on diol syntheses with 1,4-related stereogenic centers across E-configured double bonds [212,213] involving the Mislow-Evans rearrangement (Sect. 3.5), the authors developed a procedure for the stereoselective synthesis of E-homoallyhc sulfides. 

The Warren-Averbach method starts from this consideration and takes into account the simultaneous presence of size and strain effects. Once the IP has been properly considered e.g. by a deconvolution procedure), the Fourier expansion of the intrinsic profile can be written as ... 

Fig. 29. Optimum pH of hydrolysis of human placental alkaline phosphatase by neuraminidase. The liberated sialic acid was measured by the Warren-thiobarbiturate procedure, using iV-acetylneuraminic acid as the standard (G6a).

The largest chapter concerns NacNac complexes. Such complexes represent versatile platforms for a variety of transformations. The NacNac ligands have many desirable features, not the least of which is the scope of their substituted derivatives. The set of procedures was organized by three leaders in this area, Professors Daniel J. Mindiola, Patrick L. Holland, and Timothy H. Warren. In addition to their own contributions, they recruited other colleagues so that the chapter consists of procedures for NacNac complexes of all metals from scandium to zinc. 

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