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Results 401 - 450 of 535
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Hunt D A - - 1991
Fourteen people living in or near the city of Gloucester fell ill with Legionnaires' disease caused by Legionella pneumophila serogroup (SG) 1 between 27 August and 27 October 1986. Another patient had fallen ill on 30 May. Nine of the 15 were diagnosed retrospectively during a case finding exercise. There ...
LeFebvre J M - - 1991
Monthly urea kinetic modeling is performed [service Kt/V (urea)] to ensure that dialysis prescriptions provide patients a Kt/V greater than or equal to 1 and yield a protein catabolic rate (PCR) greater than or equal to 0.8. The frequency with which the dialysis prescription (physician's order +/- 5%, p +/- ...
Ruffin M T MT - - 1991
A clinical trial assessed the efficacy of three different combinations of instruments for capturing endocervical elements when performing a Pap smear. The instrument combinations tested were: 1) the cytology brush and extended-tip wooden spatula; 2) moistened cotton swab and extended-tip wooden spatula; and 3) extended-tip wooden spatula and Ayre blunt ...
Johnson L J - - 1991
Two studies evaluated the effects of ammonium carbamate (AC) on preservation and digestibility of high-moisture (HM) Coastal bermudagrass (Cynodon dactylon) hay. A 3 X 7 factorial arrangement of treatments in a completely random design was used to estimate the efficacy of AC in laboratory conditions. Treatments were 25, 30, or ...
Pedersen W T - - 1991
Rates of ribosomal selection of both release factor 1 (RF1) and a suppressor tRNA (Su7C33) were studied at an amber codon at which the 3' neighbor was permuted. Rates of RF1 selection vary 2.6-fold among contexts. The 3' neighbor-dependent variation of RF1 action correlates very strongly with the non-random frequencies ...
Lindsay D S - - 1991
The response to inoculation of Toxoplasma gondii tissue cysts was examined in 3 red-tailed hawks (Buteo jamaicensis). One hawk (hawk 1) was inoculated orally with 3.000 tissue cysts of the GT-1 isolate of T. gondii and 2 hawks (hawks 2 and 3) each were inoculated orally with 12,000 tissue cysts ...
Sulkova S - - 1991
Elimination of aluminium from the body during haemodialysis and haemofiltration was investigated. Without desferrioxamine administration there was no aluminium removal from the body. After DFO administration (1 g intravenously 24-40 h before dialysis or haemofiltration) removal of aluminium during blood purification methods was achieved. During haemodialysis (n = 28, cuprophane ...
Orbovic V - - 1991
An infrared-imaging system has been used to study the influence of gravity on the kinetics of first positive phototropism. The development of phototropic curvature of etiolated seedlings of Arabidopsis thaliana was measured in the absence of visible radiation. Following a pulse of blue light, stationary seedlings curved to a maximum ...
Stuhr L E - - 1991
Inotropic and chronotropic responses to the beta-agonist, isoprenaline (ISO) were studied with a transducer located in the left ventricle and a catheter placed in the left femoral artery in anesthetized rats at 1 and 30 bar. The hemodynamic control values were equal in both series. During ISO infusion the chronotropy ...
De Petrocellis L - - 1991
1. The effect of two ichthyotoxic diterpenoid diacylglycerols, verrucosins A and B, previously isolated from the mantle of a marine nudibranch mollusc, were studied on Hydra vulgaris tentacle regeneration. 2. A potent effect was found for both verrucosins in the low nanomolar range; the rank of potency observed was analogous ...
Galambos T - - 1991
The various aspects of the state of the art of exercise, or physiological responsive pacemakers (PM) are discussed. Models are used to assess the performance of PM controllers already on the market or in experimental stages. Emphasis is placed on comparison between open-loop and closed-loop controllers in light of the ...
Gustafson D L - - 1991
Mitomycin C (MMC) is a bioreductive alkylating agent that is capable of generating oxygen radicals. Porfiromycin (PM) is an analog to MMC that generates oxygen radicals at a significantly lower level than the parent compound. Under aerobic conditions, the toxicity of MMC to EMT6 cells is 2.5-fold that of PM, ...
Wenban-Smith M G MG Department of Psychology, University of Durham, - - 1991
It is well known that the latencies of target elicited saccades are significantly reduced when the target onset is preceded shortly by the offset of a fixation point (Saslow 1967). Fischer and Boch (1983) reported the discovery that, with monkeys as subjects, in addition to the general reduction in saccade ...
Krungkrai J - - 1990
During the past several years, Jerapan Krungkrai, H. Kyle Webster and Yongyuth Yuthavong have characterized the metabolic pathway of folate biosynthesis and folate-dependent reactions, including the cobalamin-dependent activity of methionine synthase, in P. falciparum grown in vitro. In this review, they discuss the implications of this work for understanding the ...
Mountford P J - - 1990
The suitability of 75 sunglasses for use by patients receiving 8-methoxypsoralen photochemotherapy (PUVA) was assessed by measuring their ultraviolet radiation (UVR) transmission spectra and comparing the results with some published proposed spectral limits. The sunglasses were classified according to whether their lenses were polarised, photochromic, reflective, graduated tint or of ...
Bassan M M - - 1990
Three times daily administration of isosorbide dinitrate may avoid much of the tolerance seen with more frequent dosing. To determine the daylong pattern of the antianginal effect of three times daily isosorbide dinitrate, eight men with stable exertional angina and a positive exercise test were studied. The subjects had demonstrated ...
Ballevre O - - 1990
Kinetic aspects of threonine (Thr) metabolism were examined in eight pigs fed hourly with a diet containing either 0.68% (LT group) or 0.81% (HT group) of Thr (wt/wt), corresponding to 10 and 30% Thr excess, respectively, compared with an "ideal" diet. Primary production (PR) and disposal (DR) rates were obtained ...
Sokel B S - - 1990
A 9 year old boy with intractable postprandial reflex vomiting was taught a self hypnotherapy technique incorporating relaxation exercises, mental imagery, and suggestions of symptom relief. The sequence was recorded on a personal stereo cassette tape. Vomiting was completely eliminated within four weeks. At 12 month review vomiting had not ...
Andoh K - - 1990
Tissue factor activity (TFA) of leukemic cells (1 x 10(8) cells/mL) was measured in 44 patients with acute nonlymphoid leukemia (ANLL) by the one-stage assay using factor-IX deficient plasma (OSA-dIX) and two-stage assay (TSA). According to the preventative heparin dose schedule based on the TFA measured by the TSA, all ...
Doubt T J - - 1990
Diurnal effects on periodic exercise were examined in 8 male divers wearing passive thermal protection during whole body immersions in 5 degrees C water for periods of up to 6 h. Studies were done during the course of 5-day air saturation dives at a depth of 1.61 ATA, with immersions ...
Arnhold J - - 1990
The luminol-enhanced chemiluminescence of zymosan-stimulated polymorphonuclear leukocytes is continuously diminished in the presence of increasing amounts of human serum albumin (from 1 to 30 mg/ml). HSA competes with luminol for hypochlorite as shown by adding sodium hypochlorite to luminol solutions containing HSA. Titration of HSA with NaOCl affects firstly the ...
McKnight T K - - 1989
This study finds no significant differences between deaf and hearing readers' sensitivity to contextual build-up as evaluated in a cumulative cloze exercise measured by a 2 X 5 X 2 factorial design using readers at the eighth, tenth and twelfth grade levels. Differences favoring hearing readers have been documented at ...
Edwards F R - - 1989
1. Monosynaptic excitatory postsynaptic potentials (EPSPs) were elicited in lumbosacral motoneurones of pentobarbitone anaesthetized cats by stimulating group Ia muscle afferents with most of the dorsal roots severed. In some experiments Ia EPSPs were recorded together with monosynaptic EPSPs elicited by stimulating the ipsilateral ventral quadrants (VQ) of the thoracic ...
Lane R D - - 1989
In a series of 11 melancholic patients who received both right unilateral and bilateral ECT during a single course of treatment, mean and minimum postictal heart rates were greater after bilateral ECT. Greater catecholamine release during bilateral ECT is the most likely explanation for these effects. These differences complement other ...
Saul S J - - 1989
Melanization and encapsulation of invading foreign organisms observed during the immune response in insects is known to be due to the action of activated phenoloxidase. Phenoloxidase-generated quinones are deposited either directly or after self-polymerization on foreign objects accounting for the observed reactions. Since the reactions of quinones are nonenzymatic, they ...
Luria S M - - 1989
Subjects searched for target letters and symbols in VDT displays produced with green, amber, yellow, red, blue, and white phosphors. The green was rated more highly than yellow, and blue was rated worst. There were no significant differences in search time, but there were significant differences in the number of ...
Biesalski H K - - 1989
A sensitive method for the determination of retinyl esters, including their geometric isomers, by isocratic adsorption HPLC is described. The development of a special recycling system allows the separation of all-trans-, 13-cis, 11-cis- and 9-cis-retinyl palmitate, -stearate, -oleate, -palmitoleate and -linoleate with short retention times and high sensitivity. Extraction of ...
Schild A - - 1989
Phospholipase A (PLA) and Sepsis Severity Score (SSS) were measured regularly in 28 patients with sepsis (n = 11), pancreatic operations (n = 7), or multitrauma combined with contused abdominal trauma (n = 10). No linear correlation was found between these two parameters. A statistical correlation could be shown for ...
Clarke R V - - 1989
During the 25 years between 1959 and 1984, the suicide rate in the United States increased from 10.5/100,000 to 12.4/100,000. The increase was confined to those suicides using a firearm, which had reached 58.5% of the total by the end of the period. At the same time, there was a ...
Rachman S - - 1989
An experiment was carried out on 30 spider-fearful and 30 snake-fearful subjects in an attempt to replicate the finding of a correlation between the rapid reduction of fear and the reduced likelihood of significant fear returning after an interval (low return of fear). It was also hoped to observe and ...
Wade R C - - 1989
This bibliography is the seventeenth annual supplement to the comprehensive bibliography on the same subject which was published in Space Life Sci. 2(1970), 225-295; 3(1972), 293-304; 4(1973), 309-329 and in Origins of Life 5(1974), 505-527; 6(1975), 285-300; 7(1976), 75-85; 8(1977), 59-66; 9(1978), 67-74; 10(1980), 69-87; 10(1980), 379-404; 11(1981), 273-288; 12(1982), ...
Sarne D H - - 1989
Evaluation of a family in which males were clinically euthyroid despite having low serum total T4 (TT4) and free T4 index (FT4I) values revealed the presence of a new inherited T4-binding globulin (TBG) variant (TBG-San Diego). Two brothers had low TT4 (39 and 49 nmol/L; normal range, 64-154 nmol/L) and ...
Dolan M E - - 1988
The sequence selectivity of methylation at the O6 and N7 position of guanine by N-methyl-N'-nitrosourea (MNU) and the rate of removal of O6-methylguanine by O6alkylguanine-DNA alkyltransferase (AGT) was determined using dodecadeoxynucleotides of defined structure. The extent of guanine adduct formed in self-complementary dodecamers, 5'-TATACGCGTATA-3', 5'-TATACCGGTATA-3' and 5'-TATAGGCCTATA-3', after methylation with ...
Smith R A - - 1988
The kinetics of inactivation of mitochondrial monoamine oxidase type B (MAO-B) by a series of 18 stereoisomers of tertiary alpha-allenic amines have been investigated in detail. The chirality of the allene group in N-methyl-N-aralkylpenta-2,3-dienamines was found to have a profound effect on the inactivation rate, with the (R)-allenes being up ...
Carson D S - - 1988
In a randomized controlled trial, 58 subjects were treated for Pediculus humanus var capitis with either pyrethrins combined with piperonyl butoxide (RID, Pfizer Inc, New York) or 1% permethrin (NIX, Burroughs Wellcome Co, Research Triangle Park, NC); 31 subjects received RID and 27 subjects received NIX. Both products were applied ...
Algaier J - - 1988
The kinetics of tubulin assembly were examined in the absence and presence of dimethyl sulfoxide at 37 degrees C. Inclusion of 1.4 M (10%) dimethyl sulfoxide lowered the critical protein concentration about 8-10-fold, from 9.4 microM in the absence of the organic solvent to 1.1 microM in its presence. This ...
Blanchard J - - 1988
The dissociation constants, partition coefficients, and solubility of carbenoxolone (1) were determined using tritium-labeled drug. The partition and solubility methods were used to assess the dissociation constants of carbenoxolone, while the pKa of the structurally related triterpenoid, enoxolone (2) was determined using a spectrophotometric method. The true partition coefficient (TPC) ...
Hammond G - - 1988
Interresponse intervals (IRIs) were recorded as 8 right-handed male subjects tapped a key separately with the index finger of each hand as fast as possible for twenty 10-s runs. Frequency distributions of the IRIs produced by each hand showed that the shorter mean IRI that is usually reported for preferred-hand ...
De Bleser R - - 1988
This paper reports the results of a revised replication of the von Stockert/Bader constituent ordering study (1976) with German agrammatics. Part 1 describes why such a replication was necessary. In part 2, the original study is summarized and the weaknesses are identified which caused a revision. Part 3 reports the ...
Herrmann M - - 1988
Seven severely nonfluent aphasics and one relative or close friend were investigated in an interview situation. The conversation was videotaped and analyzed for the use of nonverbal communication between aphasic and partner. The results indicate that the group of aphasics used significantly more frequently and for a significantly longer period ...
Malenfant J E - - 1988
The purpose of this study was to determine the effects of police enforcement and the use of signs and posters in promoting seat belt use by nighttime tavern patrons. Ten taverns in two cities served as sites. Data were collected on the nighttime seat belt use of tavern patrons and ...
Frustace S J - - 1987
The purpose of this study is to provide a thorough and comprehensive description of the late onset manifestations of poliomyelitis (PM). In addition, unusual findings, seen in the post-poliomyelitis period, have been presented to further increase awareness of the potential diversity of the problem. The scope of PM sequelae is ...
Adelman R D - - 1987
The nephrotoxicity of the aminoglycoside amikacin sulfate was evaluated in an open, controlled study of newborns with presumed neonatal sepsis. One hundred twelve neonates were randomly allocated to receive either amikacin-ampicillin or mezlocillin, a semisynthetic penicillin. Neonates receiving amikacin, in contrast to those receiving mezlocillin, showed significant nephrotoxicity as evidenced ...
Funk M A - - 1987
Effects of advancing forage maturity and drought-induced summer dormancy on site and extent of digestion and microbial protein synthesis in beef steers grazing native blue grama rangeland were evaluated in four sampling periods. Five steers (avg initial wt 227 kg) fitted with ruminal, duodenal and ileal cannulae and three steers ...
Oyeyinka G O - - 1987
The levels of complement components (C1q, C4, C3 and C3d) were measured in the sera of nine azoospermic Nigerian men and compared with those of 12 oligospermic and 19 normospermic Nigerian men. The mean values of C1q, C4, C3 and C3d for azoospermic men showed no significant difference from those ...
Sklare D A - - 1987
Interaural attenuation of pure tone and speech signals was evaluated for a new audiometric insert earphone, the ER-3A tubephone, and a conventional TDH-49P supra-aural earphone in seven unilaterally deaf adult subjects. These results validate and extend the interaural attenuation data reported by the manufacturer of the ER-3A and his associates. ...
Windholz G - - 1987
According to I. P. Pavlov's theory of higher nervous activity, the establishment and dissolution of conditional reflexes enhances the higher organism's adaptation to the external environment. Pavlov asserted that, ontogenetically, conditional reflexes are based upon innate, unconditional reflexes (UR) or instincts. Pavlov did not distinguish between URs and instincts, but ...
Futerman A H - - 1987
The ability of phosphatidylinositol-specific phospholipase C (PIPLC) to solubilize acetylcholinesterase (AChE) in the electromotor system of adult Torpedo ocellata and in the developing electric organ was examined. PIPLC solubilizes significant amounts of the membrane-bound G2 form of AChE throughout embryonic development of the electric organ, as it does in the ...
Prior J C - - 1987
Exercise is commonly listed as a remedy for the premenstrual syndrome (PMS), although no study has proven that it is an effective therapy. Numerous reports have suggested that exercise is associated with improved mood and symptoms. In those reports, however, the diagnosis of PMS was not clearly documented, nor was ...
Duboc D - - 1987
We used phosphorus NMR spectroscopy to study 16 patients with muscular enzyme deficiencies affecting glycogenolysis and glycolysis. Study of phosphomonoester (Pm) kinetics and intracellular pH during exercise and recovery provided criteria for the distinction of these metabolic myopathies by NMR spectroscopy. The Pm peak was undetectable in patients lacking debrancher ...
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