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Preliminary observations

The urine of dystrophic patients was reported in 1949 by Minot et al. (Mil) to contain quantities of organic ribose phosphate esters, which could be detected for diagnostic purposes by a modified qualitative Benedict s test (03). Walton and Latner (W5), however, found this proposed test to have no diagnostic value. Determined and thorough biochemical investigations in large numbers of patients with all types of muscular dystrophy (Pll, RIO) have since shown that any difference [Pg.145]

The only useful contribution of endocrine studies to diagnosis has been in the condition dystrophia myotonica, with its 80% incidence of eventual primary testicular atrophy in males. Many workers (Cl, Dl, G7, K15) have reported the urinary excretion of 17-ketosteroids in this condition to be subnormal in males, and even in females to be in the low normal range. Recent thorough investigations, however (B22, D18), have disclosed that, apart from an unexplained frequently low basal metabolic rate and the consequences of eventual testicular atrophy, there seems to be no reason to suppose that adrenal cortical, thyroidal, ovarian, and pituitary functions are other than normal in dystrophia myotonica. A majority of males examined had been fertile, and most women had brought one or more normal full-term pregnancies to spontaneous delivery. [Pg.146]

Dystrophic muscle may contain only a tenth as much creatine as normal muscle (Rl), despite a suflBcient content of ADP and ATP (R9), due to its very low content of creatine kinase on which muscle creatine depends for its acceptance, retention, and use as creatine phosphate, since the total creatine content of dystrophic muscle is known to be directly proportional to the activity of the creatine kinase within it (R8). Excess creatine from the liver thus exceeds its renal threshold and is excreted in large amounts, while the low creatinine excretion indicates how slight is the remaining muscle function. [Pg.147]

These processes have been illustrated by the administration of glycine-N to a dystrophic patient (B12, R7), when the isotope content of the daily urinary creatinine excretion quickly reached a low, constant level, while that of creatine at the same time rose to a value some 10 times higher and took 11 days to sink again to the same level. The inter- [Pg.147]

In 1943 Warburg and Christian (W7) reported that five of the glycolytic enzymes are present in the blood serum of rats, and of these the activities of aldolase and triose isomerase are usually increased in the [Pg.148]

Before fitting a model to the data, it is often wise to look at the data and listen with our eyes to hear what the data is trying to tell us about the form the model might take. Profound knowledge [W. Deming (1986)] can usually be used to develop mechanistic models that are superior to off-the-shelf empirical models (see Section 1.4). [Pg.178]

There is an extreme data point at day 128 where the clearings have the value 26.0. This is by far the largest value in the data set it is half again as large as the next largest value (17.6 on day 99). Although the student did not find out the exact reason [Pg.178]

In this chapter we work exclusively in the general return time set-up, cf. Section 1.8 and its notations, in particular the measures we consider have Boltzmann factors containing the energy (1.75). Recall that we are assuming that the functions 9 (i)(-), = 1,2,3, in (1.76) and in (1.77) have sub-linear growth and they are continuous. Moreover y (2)(0) = 0 and (1.78) holds. We observe that [Pg.89]

For this inequality we have used explicitly (1-78) and enters because the extra contact brings along extra energy. [Pg.90]

Sample measurement results are presented in Fig. 9.5. In this test, a horizontal force of about 200 N (Fig. 9.5c) was needed to induce the noise at a traveling velocity of approximately 20 mm/s (Fig. 9.5d). The audible noise continued for about 4 s with a dominant frequency of about 150 Hz (Fig. 9.5a) accompanied by an almost 20 dB increase in the noise level (Fig. 9.5b). The frequency spectrum of the recorded noise at f = 3 s is plotted in Fig. 9.6. This plot clearly shows the dominant signal frequency of 150 Hz. [Pg.159]

Consistency in the frequency of the generated audible noise between complete seat tests and single slider tests, points toward the lead screw vibrations as the source of the noise. In addition, a rough estimate of the natural frequency of [Pg.159]


The preliminary observations underline the manufacturer s responsibilities. He is obliged to analyse the hazards in order to identify those which apply to his equipment. He must design, manufacture and check his equipment to ensure its safety even with respect to their use under reasonably foreseeable conditions. In addition, the manufacturer must interpret and apply the essential requirements in such a way as to take account of the state-of-the-art at the time of design. That latter requirement underlines the evolutive character of the essential requirements which is inherent in the new approach. [Pg.941]

Direct visual observation preliminary observation for final characterization, or preparative for other instrumentation... [Pg.7]

Using this preliminary observation a comprehensive analysis of data will allow for the elucidation of the viscosity dependency. If Kp and Kgq are assumed to be power functions of viscosity with an Arrhenius tempe rature coe ffi cien t... [Pg.382]

La Spina I, Porazzi D et al (2001) Gabapentin in painful HIV-related neuropathy a report of 19 patients, preliminary observations. Eur J Neurol 8(l) 71-75 Lanska MJ, Lanska DJ et al (1988) Syphilitic polyradiculopathy in an HIV-positive man. Neurology 38(8) 1297-1301... [Pg.81]

The professor and some of the students have assigned an alphabetic label (from a to jj) to each of the mystery elements, and they ve combined the remaining information with some of their own preliminary observations. Using this data and your deductive reasoning skills, can you determine the identities of the 36 elements ... [Pg.53]

Preliminary observation on 16 cancer patients who have been treated with the above-mentioned total alkaloid preparation indicates that symptoms are improved. Thus hepatic cancer patients have claimed disappearance of pain, improvement of appetite, and reduction of ascites patients suffering esophageal cancer claimed to have the self-feeling of relaxation of pain and disappearance of vomiting and upset stomach as well as the improvement of appetite. These preliminary results are quite encouraging, but certainly more extensive investigations are needed before the antitumor action of the Gelsemium alkaloids can be established. [Pg.138]

Preliminary observations indicate that stilbenes can act as quenchers for piperylene triplets.<69) This, along with the effect of low-energy sensitizers upon piperylene or 2,4-hexadienes, is another area that needs more experimental work before a complete picture can be obtained. [Pg.200]

Preliminary observations of the reactions of Fe(II) and Fe(III) in an ultrasonic field revealed conversion of Fe(II) to Fe(III) and vice-versa, even without any external oxidant/reductant, which were subsequently confirmed experimentally and sequentially through the following four qualitative conversions. The details are available in the literature [35]. [Pg.277]

High MW fraction in EPDM ought to contribute favorably to the vulcanizate tensile properties ( ). The following preliminary observations were gathered to examine whether difference in. tensile strength of samples prepared with various catalysts studied was due primarily to the difference in MWD of the terpolymers. ... [Pg.208]

Up to the present, there has been no systematic study of radon or radon daughters in Japanese homes. We have, therefore, measured the distribution of radon concentrations in houses to determine the factors that influence them in Japan. For this end, long-term measurements of radon concentrations in the home environment were undertaken as a joint-study of five reserch institutions. These preliminary observations are for 5 areas of Japan for which results are available. [Pg.131]

After these preliminary observations, the problem was to establish whether these CTCs are essential intermediates in olefin bromination (Scheme 3). Are... [Pg.217]

Pt2(P205H2) - (d8-d8), and Mo6Clft ( )6. Two- electron oxidations of Re2Cl and Pt2(P205H2)it have been achieved by one-electron acceptor quenching of the excited complexes in the presence of Cl, followed by one-electron oxidation of the Cl -trapped mixed-valence species. Two-electron photochemical oxidation-reduction reactions also could occur by excited-state atom transfer pathways, and some encouraging preliminary observations along those lines are reported. [Pg.23]

Raising the incubation temperature from 45 to 57°C did not bring about a pronounced increase of the hydrogen-driven pMMO activity. This preliminary observation indicated in vivo heat stability of the hydrogenase and pMMO activities. The temperature dependent difference in the solubility of hydrogen may also explain the small activity difference, particularly as similar results were obtained for the hydrogen-driven sMMO activity. [Pg.26]

H2. Heller, P., Weinstein, H. G., West, M., and Zimmerman, H. J., Enzymes in anemia A study of abnormalities of several enzymes of carbohydrate metabolism in the plasma and erythrocytes in patients with anemia, with preliminary observations of bone marrow enzymes. Ann. Internal Med. 53, 898-913 (1900). [Pg.301]

A review about the Zintl phases has been published by Sevov (2002) from the introduction of this publication we quote a few remarks. It was preliminary observed that the number of Zintl phases has increased many-fold since Zintl s time and that the definition of a Zintl phase has never been very exact often compounds that include non-metals have been considered in this family. The paper by Sevov is mainly dedicated to clearly intermetallic Zintl phases (that is phases containing main group metals, semi-metals or semiconductors only). Attention has therefore been dedicated to compounds of alkali metals with the elements of the 13th, 14th and 15th groups (without B, Al, C, N and P). To this end the following definitions and statements have been considered. [Pg.270]

Walker N. 1954. Preliminary observations on the decomposition of chlorophenols in soil. Plant Soil 5 194-204. [Pg.230]

The above examples demonstrate the behavior of peptide bonds at neutral pH. Information is also available on the pH-rate profile of hydrolysis of peptide bonds, as exemplified by N-(phenylacetyl)glycyl-D-valine (6.47), an acyclic penicillin G analogue [69], As a preliminary observation, we note that this compound contains a single stereogenic center, meaning that results obtained with its enantiomer A-(phcnylacctyl)-Gly-Val would have been identical under the achiral conditions of the study. [Pg.289]

No complete kinetic experiments have yet been described for the isomerization reactions of tricyclic systems containing two cyclopropane rings. A number of preliminary observations have been reported and some of the isomerizations noted are given below. [Pg.169]

In summary, this chapter introduced methods to the wider scientific community to facilitate the extension of the compelling preliminary observations that we and others have made toward deciphering the role of DNA methylome in the pathogenesis of... [Pg.208]

Some unpublished preliminary observations, as well as unresolved enigmas, will also be treated. [Pg.18]

H2A-Bbd is found only in the active areas of the nucleus and displays an exclusive deposition pattern with mH2A [61]. Furthermore, fluorescence immuno-chemistry has shown that this H2A variant co-localized with acetylated H4 [59]. Although the structural properties of H2A-Bbd containing nucleosomes remain to be characterized, preliminary observations suggest that the particle may be specialized for activating transcription. [Pg.246]

Several bench-scale degradation experiments were completed. The data from these studies of 2,4-D butoxyethanol ester, alachlor, trifluralin and atrazine under a variety of aerobic and anaerobic conditions were used for the following preliminary observations ... [Pg.64]

Owaga, M. L. A. (1984). Preliminary observations on the efficacy of olfactory attractants derived from wild hosts of tsetse. Insect Science and its Application 5,87-90. [Pg.496]

Stainken D. 1975. Preliminary observations on mode of accumulation of no. 2 fuel oil by soft shell clam. 1975 Conference on Prevention and Control of Oil Pollution San Francisco, California. [Pg.192]

Methyl-5-acetamido-6-aminouracil (LX) has been isolated as a metabolite in human urine [412]. Preliminary observations indicate that the excretion may be elevated by oral intake of caffeine, but this pyrimidine has also been detected clinically in a controlled, caffeine-free, low purine diet. [Pg.308]

N4. Nossel, H. L., The effect of moiphine on the serum and urinary amylase and the Sphincter of Oddi, with some preliminary observations on the effect of alcohol on the serum amylase and the Sphincter of Oddi. Gastroenterology 29, 409-416 (1955). [Pg.40]

Castillo, M., Kwock, L., Courvoisie, H., and Hooper, S.R. (2000) Proton MR spectroscopy in children with bipolar affective disorder preliminary observations. AJNR Am J Neuroradiol 21 832-838. [Pg.133]

Another method for determining the presence of triplet intermediates in a photochemical reaction is direct spectroscopic evidence using flash photolytic methods. Little of this has yet been tried. Flash photolysis of 101,3-dimethyluracil solutions in water or in dry cyclohexane did not give any new absorption bands in the visible or near UV in the time interval 2-600 (xsec after the flash.108 This preliminary observation seems to weaken the case for a triplet intermediate and also seems to exclude any radical intermediates in the reaction of dimethyluracil with water. [Pg.273]


See other pages where Preliminary observations is mentioned: [Pg.340]    [Pg.595]    [Pg.201]    [Pg.92]    [Pg.549]    [Pg.52]    [Pg.519]    [Pg.196]    [Pg.197]    [Pg.131]    [Pg.237]    [Pg.324]    [Pg.249]    [Pg.219]    [Pg.176]    [Pg.419]    [Pg.178]    [Pg.515]    [Pg.21]    [Pg.365]    [Pg.393]    [Pg.51]   


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Preliminary

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