title stringlengths 0 901 | abstract stringlengths 3 9.89k | PMID int64 22 25.3M | embedding listlengths 768 768 |
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Measurement of forearm blood flow by venous occlusion plethysmography: influence of hand blood flow during sustained and intermittent isometric exercise. | The requirement for using an arterial occlusion cuff at the wrist when measuring forearm blood flows by plethysmography was tested on a total of 8 subjects at rest and during and after sustained and intermittent isometric exercise. The contribution of the venous effluent from the hand to the forearm flow during exercis... | 527,576 | [
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Hyperparathyroidism presenting with unusual neurological features. | A case of hyperparathyroidism, who presented with unusual complex neurological symptomatology is reported. Mental confusion, asterixis and elevated cerebrospinal fluid protein with marked pleocytosis dominated the neurological picture. All these findings subsided upon correction of hypercalcemia, suggesting direct rela... | 527,609 | [
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Tumor induced brain damage in rats: implications for behavioral and anatomical studies with aging animals. | In rats, spontaneously occurring tumors and infarcts induce damage which destroys or distorts regions of the brainstem and cerebral hemispheres. Despite such destruction, there may be no gross evidence of behavioral or metabolic pathology. | 527,622 | [
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Vagal bradycardia produced by microinjections of morphine-like drugs into the nucleus ambiguus in anaesthetized dogs. | The site in the dog medulla oblongata where fentanyl or met-enkephalinamide produced vagal bradycardia was determined using microinjections. The nucleus ambiguus was found to be a selective and highly sensitive area for the vagal bradycardia. | 527,649 | [
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Effects of some antiarrhythmic agents on dog heart mitochondrial oxidative phosphorylation. | Significant decreases in state 3 oxygen consumption, respiratory control index (RCI), ADP : O ratio and phosphorylation rate were observed in the presence of 0.1-1.0 mM quinidine; 0.5 mM or greater concentrations elevated state 4 oxygen consumption. Lidocaine (1-2.5 mM) also depressed RCI and increased state 4 oxygen c... | 527,652 | [
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The age-related tumor incidence in Wistar-Imamichi rat. | The age-related incidences and types of spontaneous tumors were studied in 320 male and 354 female Wistar-Imamichi rats reared up to 130 weeks of age. The tumor incidence increased abruptly between 53 and 78 weeks of age, and 170 males and 269 females were shown to bear tumors during the observation period. Multiple tu... | 527,676 | [
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Turnover of circulating hematopoietic stem cells. | Short-term parabiosis of male and female CBA/CaJ mice was used to investigate the turnover of circulating hematopoietic stem cells. The exchange and subsequent disappearance of donor stem cells were monitored by spleen colony assay and chromosome analysis of individual colonies. The results revealed an exponential disa... | 527,693 | [
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Effects of serum concentrations on the clonal growth of Syrian golden hamster fetal lung cells. | In order to gain an insight into the mechanisms of clonal growth of early-passage Syrian golden hamster fetal lung (SGHFL) cells, a study was undertaken, in which the effects of various serum concentrations on the cloning efficiency and on the colony size of these cells were examined. The results suggest that both clon... | 527,698 | [
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Variation of DNA polymerase activities in chick neural retina as a function of age. | The activities of DNA polymerases alpha, beta, and gamma and of thymidine kinase were determined in the chick neural retina at different stages of embryonic development (starting at seven days) and after hatching (up to five years). Crude extracts of neural retinae were fractionated by centrifugation on sucrose gradien... | 527,776 | [
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Clinical features of silent stones at onset. | Abnormal laboratory findings and abnormal functional and morphologic findings of the bile duct are infrequent in silent stones, and the course and prognosis are favorable in the cases of silent stones with no such abnormalities. These cases can therefore be followed up internally, but because onset becomes frequent in ... | 527,804 | [
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Simultaneous measurement of antroduodenal motility, gastric emptying, and duodenogastric reflux in man. | In six healthy individuals, the relationship between antroduodenal motor activity, duodenogastric reflux, and gastric emptying were simultaneously examined by combined use of multiple marker perfusion and miniature strain gauge transducers. An interdigestive pattern of motor activity was observed during the fasting per... | 527,873 | [
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Pancreatic response to secretion+CCK-PZ in European and North African adults and children. | Pancreatic response to intravenous secretin GIH (1CU/kg) +CCK-PZ (3CHRU/kg) was investigated in European and North African normal subjects. The pancreatic responses were compared in two groups of 38 normal male adults and in two groups of nine normal nurslings (less than 1 year). Body weight and age were similar in the... | 527,879 | [
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[Differential diagnosis of tumors of the soft tissue of the forearm: an atypical palmaris longus muscle]. | Bellies of the palmaris longus which are situated in an atypical position can appear as tumors of soft tissues on the flexor side of the forearm. Besides a central position a distal bicipital and a doubled variant can be observed. We report the case of a 22 years old female patient, with a "tumor" on the flexor side of... | 527,895 | [
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Growth and production of anthracyclines in wild-type and mutant strains of Streptomyces galilaeus. | The course of growth curves with respect to the biosynthesis of anthracyclines was followed in the wild low-producing strain Streptomyces galilaeus JA 3043 and in its mutants G-167 (producing increased quantities of glycosides of epsilon-pyrromycinone) and J-14 (accumulating free epsilon-pyrromycinone). A two-phase typ... | 527,904 | [
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Nitrosoguanidine-induced mutations in Streptomyces indicus. | The mutagenic activities of five 1-alkyl derivatives of 3-nitro-1-nitrosoguanidine, viz. methyl, ethyl, propyl, isopentyl and octyl, were tested on Streptomyces indicus. All the compounds were found to be mutagenic. The methyl and ethyl derivatives were most effective regarding mutational frequency. The effectiveness d... | 527,906 | [
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Cell morphology and flagellation of nitrogen-fixing spirilla. | Twenty isolates of N2-fixing spirilla were isolated from the rhizosphere of maize and sugar cane grown in Egyptian and Belgian soils. Electron microscopy distinguished two morphological groups. The first includes short and thick curved rods with an unipolar flagellum while cells of the second group are much longer with... | 527,912 | [
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[Experimental and clinical studies on ribosephosphate isomerase (author's transl)]. | In order to know the clinical significance of serum ribose-5-phosphate isomerase (RPI), the activity of this enzyme was determined in sera of normal subjects and patients with hepatic disorders or malignant tumors. Experimentally, the enzyme activity in sera and liver tissue was followed in rats with acute hepatic dama... | 527,926 | [
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High incidence of the silent allele at cholinesterase locus I in Vysyas of Andhra Pradesh (S. India). | Four-hundred and ninety individuals belonging to the Vysya caste from Andhra Pradesh were screened for pseudocholinesterase variants at the E1 and E2 locus. A high incidence of the silent allele (gene frequency=0.1112) was recorded with homozygotes exceeding 2% of the population. Dibucaine- and fluoride-resistant allel... | 527,975 | [
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Cell cultures derived from embryos and melanoma of poeciliid fish. | In poeciliid fish, melanoma of different degrees of malignancy can be produced by crossing specific genotypes. For a detailed investigation of the processes leading to proliferation or differentiation of the melanoma cells, it is necessary to establish cell cultures. The aim of the present study was to find out the opt... | 528,010 | [
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L-Lactate or pyruvate stimulated growth of Novikoff rat hepatoma cells. | Novikoff rat hepatoma cells (subline N1S1-67) grew when 30 mM L-lactate or pyruvate was substituted for D-glucose in Swim's medium 67 supplemented with dialyzed calf bovine serum. A 2.6-fold increase in cell number (1.34 generations) was obtained. RNA, DNA, protein and dry weight increased in proportion to the cell num... | 528,011 | [
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Production of hydroxyl radical by human alveolar macrophages. | Stimulated human alveolar macrophages were demonstrated to oxidize B-methyl proprionaldehyde (methional) or 2-keto-4-thiomethylbutyric acid to ethylene (C2H4). Agents which are believed to scavenge the hydroxyl radical (.OH), sodium benzoate, and mannitol, as well as scavengers of superoxide anion (O2-) or hydrogen per... | 528,049 | [
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Aggregation and adherence of Streptococcus sanguis: role of human salivary immunoglobulin A. | Fourteen freshly isolated strains of Streptococcus sanguis were obtained from the dental plaque of five healthy adults. Whole saliva was collected concomitant with the plaque isolates from the five subjects, and a second whole saliva sample was collected 10 weeks later. All possible combinations of the first five saliv... | 528,050 | [
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Ultrastructure of gliding bacteria: scanning electron microscopy of Capnocytophaga sputigena, Capnocytophaga gingivalis, and Capnocytophaga ochracea. | When examined by both light and scanning electron microscopy, Capnocytophaga gingivalis, C. sputigena, and C. ochracea displayed three distinct growth zones: the original streak, an intermediate zone, and the advancing edge, or halo zone. On Trypticase (BBL Microbiology Systems)-soy-blood agar, the cells translocated b... | 528,052 | [
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Immunochemical characterization of tumor-associated surface antigens on a Moloney leukemia virus-lymphoma, MBL-2. | Tumor-associated surface antigens (TASA) on a Moloney leukemia virus (M-MuLV)-induced lymphoma, MBL-2, in C57BL/6 mice (B6) were characterized. The surface proteins of MBL-2 cells were selectively radioiodinated and then extracted by Nonidet P40. The solubilized materials were then reacted with a variety of antisera: m... | 528,073 | [
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Iodization and thyroid status in relation to stillbirths and congenital anomalies. | Thyroid status is known to have an important bearing on the ability of a woman to conceive, and to bring a normal infant to term. Thyroid status has changed in a number of previously iodine deficient countries as a result of recent iodization programmes. In this study, examination has been made of changes in the rates ... | 528,110 | [
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Experience with an independent study programme in epidemiology and biostatistics. | An independent study programme (ISP) was devised to permit self-paced learning in a combined epidemiology and biostatistics course for second-year medical students. The ISP was offered as an alternative to lecture instruction and the enrolment was restricted to 40 students out of a class of 176. The students who select... | 528,114 | [
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A method of quantifying cultural ideals of beauty and the obese. | A series of photographs of persons which had been varied by anamorphic lens to produce images both thinner and thicker than the originals were assessed by three experts in terms of percentage deviation from ideal body weight. Together with the photographs, five questions about preferences for body size were put to 341 ... | 528,126 | [
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Metabolic studies in rats under glucose and glycerol loading. | It has been found in rats that 40% glycerol, when added to standard diet, reduces the food intake and thus prevents weight gain. The subcutaneous application (40 mg/kg three times daily) has no effect. Under pair feeding conditions the oxygen consumption, the RQ value and body weight remain unaffected as compared with ... | 528,159 | [
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0.07743207,
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-0.240283,
-0.1584748,
-0.06776313,
-0.04105177,
0.09813979,
-0.1218537,
0.1635712,
-0.... |
Hemodynamic effects of vasodilators across iliac stenoses in dogs. | Blood flow and pressure gradients were measured in dogs across externally applied iliac artery stenoses following 3 minutes of reactive hyperemia and injection of tolazoline (0.4 mg/kg), papaverine (0.04 mg/kg), and prostaglandin E1 (0.033 micrograms/kg) into the iliac artery. Stenoses of borderline and definite hemody... | 528,165 | [
-0.299984,
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0.2830643,
0.1361639,... |
Juvenile diabetes mellitus. | Population studies in Israel have shown that Jews born in Europe or America have the highest prevalence of juvenile diabetes mellitus and Jews born in Asia or Africa, the lowest. The rate in the Israel born, regardless of the father's place of birth, is intermediate between those of the other two groups. The rates for ... | 528,182 | [
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... |
Cancer patterns in Israel: selected aspects. | Data on cancer incidence in Israel have been collected by the Israel Cancer Registry since 1960. Overall incidence patterns are similar to those observed in other "Westernized" countries. In the total Jewish population, lung cancer accounts for one in seven cancers in males and breast cancer, for one in four cancers in... | 528,189 | [
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0.5278351,
0.2093796,
-0.216144... |
Ischemic heart disease in Israel: changes over 30 years. | As in most of the industralized nations of the world, ischemic heart disease is the major cause of death in the adult population of Israel. The first two and a half decades since the founding of the State in 1948 were typified by a constant rise in morbidity and mortality from this disease in all ethnic groups in this ... | 528,191 | [
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0.5410814,
-0.1388... |
[Necrotizing enterocolitis in the neonatal period. Revue of 19 cases proved by anatomopathologic examination]. | Nineteen newborn infants with necrotizing enterocolitis, proved by autopsy or surgical examination, are presented. In this study the absence of blood in the stools and of pneumatosis intestinalis did not exclude the diagnosis of necrotizing enterocolitis. The role of umbilical arterial and venous catheters and of excha... | 528,223 | [
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0.3248143,
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0.06631076,
-... |
[A trilobed rotation cheek flap for closure of facial defects (author's transl)]. | Rotation flaps of the cheek as described by Imre and by Esser are well known. In some situations we use a "tri-lobed cheek flap" to close defects of the cheek, external nose or temple. This flap is described. | 528,236 | [
-0.3119143,
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0.09838273,
0.3419027,
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0.0823... |
Cardiovascular response to acoustic stimuli in one-, two-, and three-month-old infants. | Fifteen normal infants were seen at the ages of 1, 2, and 3 months. Cardiac responses to auditory stimuli of various frequencies and intensities were evaluated to determine the effects of age of the infant, frequency of the stimulus, and intensity of the stimulus. Heart rate was measured by a fingertip pulse counter an... | 528,288 | [
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0.01518712,
0.7768084,
0.1502205,
0.001774... |
Crystalline corneal opacities in the Siberian Husky. | Bilaterally symmetric opacities were detected in the corneal stroma of 78 (14%) of 560 Siberian Huskies, aged 7 months to 12 years, examined in ophthalmology screening clinics. The opacities were round or horizontally oval and consisted of a diffuse gray homogeneous haze in the anterior stroma or an array of fine polyc... | 528,326 | [
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0.2635906,
0.406028,
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... |
Synthesis and antibacterial activity of 1-N-(1,3-dihydroxy-2-propyl)kanamycin B (UK-31,214). | 1-N-(1,3-Dihydroxy-2-propyl)kanamycin B was prepared and its in vitro activity against aminoglycoside-sensitive and aminoglycoside-resistant organisms was compared with that of kanamycin B and gentamicin. This kanamycin B derivative (code No. UK-31,214) demonstrated potent activity in all of these tests and gave good p... | 528,375 | [
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0.1181436,
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... |
Orally active esters of cephalosporin antibiotics. II. Synthesis and biological properties of the acetoxymethyl ester of cefamandole. | The synthesis of the acetoxymethyl (AOM) ester of cefamandole (CM) is described. The sparingly soluble ester is shown to be well absorbed orally by mice, but only when administered in solution in a partially non-aqueous vehicle, 50% propylene glycol. Neither the ester in aqueous suspension nor the sodium salt of CM in ... | 528,384 | [
-0.386457,
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0.06219829,
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0.5577268,
0.4277853,
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0.17472,
-0.29... |
Studies on Actinomycetales producing antibiotics only on agar culture. I. Screening, taxonomy and morphology-productivity relationship of Streptomyces halstedii, strain SF-1993. | Soil Actinomycetales that produce antibiotics during growth on agar but not in submerged culture were searched for and about 25 strains were obtained. One of these, Streptomyces halstedii, strain SF-1993, which produces an antibiotic designated SF-1993 was studied taxonomically and morphologically. The antibiotic-produ... | 528,390 | [
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0.05988273,
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... |
Studies on Actinomycetales producing antibiotics only on agar culture. II. Isolation, structure and biological properties of N-carbamoyl-D-glucosamine (substance SF-1993). | N-Carbamoyl-D-glucosamine was isolated from the culture of Streptomyces halstedii SF-1993. It showed weak antimicrobial activity against some Gram-negative bacteria and some fungi. | 528,391 | [
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Structure of nanaomycin E, a new nanaomycin. | A new component, nanaomycin E, has been isolated from the culture broth of Streptomyces rosa var, notoensis, which had been found to produce nanaomycins A, B, C and D. Nanaomycin E was an epoxy derivative of nanaomycin A and was converted into nanaomycin A and 4a-epi-nanaomycin B by treatment with sodium hydrosulfite i... | 528,392 | [
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0.03345818,
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0.4461693,
0.1781428,
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... |
High pressure liquid chromatographic determination of sodium saccharin, sodium benzoate, and caffeine in soda beverages: collaborative study. | A collaborative study for the determination of sodium saccharin, sodium benzoate, and caffeine in 3 types of soda beverage, cola, grape, and lemon-lime, has been completed using reverse phase high pressure liquid chromatography with a muC18 column and acetic acid mobile phase. Recoveries for sodium saccharin were 98.6,... | 528,441 | [
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0.4117647,
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Long-term storage of microorganisms used in antimicrobial effectiveness tests. | Liquid nitrogen storage of organisms designated in the U.S. Pharmacopeia (XIX) for the assessment of antimicrobial effectiveness is described. By use of simple apparatus and procedures, 85-95% viabilities of pre-frozen cells are attained immediately upon freezing. Viability levels have remained constant over a 3-year p... | 528,471 | [
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0.01476058,
0.2281115,
0.08912954,
0.2948756,
0.051119... |
Structure of Streptomyces erythraeus lysozyme at 6 A resolution. | A 6 A resolution electron density map has been calculated for a bacterial lysozyme produced by Streptomyces erythraeus. This lysozyme differs from the vertebrate lysozyme in its size, amino acid composition, and specificity. The structure was determined by the method of isomorphous replacement. Three heavy atom derivat... | 528,538 | [
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0.05524555,
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A fluorescence stopped-flow study on troponin labeled with N-ethyl maleimide and N-(p-(2-benzimidazolyl)phenyl) maleimide. | The kinetics of the conformational change of the troponin-C (TN-C) subunit in N-(p-(2-benzimidazolyl)phenyl) maleimide (BIPM)-N-ethyl maleimide (NEM)-labeled troponin induced by calcium binding or removal were studied with the fluorescence stopped-flow method. The kinetic process of the conformational change was biphas... | 528,542 | [
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0.3846363,
0.3469547,
0.09977495,
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0... |
Oocyte maturation: aberrant post-fusion responses of the rabbit primary oocyte to penetrating spermatozoa. | Primary oocytes cannot be fertilized normally; they begin to develop this capacity as meiosis resumes. To elucidate the changes involved in acquisition of their fertilizability, rabbit primary oocytes displaying a germinal vesicle (GV oocytes) were placed in Fallopian tubes inseminated previously with spermatozoa, reco... | 528,576 | [
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0.3625876,
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0.03994911,
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0.4712036,
0.0009155625,
0.1299036,
... |
Immunoelectron-microscopic studies of endoplasmic reticulum-Golgi relationships in the intracellular transport process of lipoprotein particles in rat hepatocytes. | Endoplasmic reticulum (ER)-Golgi relationships in the intracellular transport process of secretory proteins in rat hepatocytes have been studied using lipoprotein particles as a marker for the secretory protein and cytochrome P-450 as a marker enzyme for the ER membranes. Ferritin immunoelectron-microscopic observation... | 528,583 | [
-0.04915159,
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0.1066219,
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0.5439583,
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0.2515605,
0.2159896,
-0.1873149,
0.09016201,
-0.09365253,
0... |
Corticosteroid analysis in biological fluids by high-performance liquid chromatography. | A sensitive, specific, and reproducible high-performance liquid chromatographic assay for the simultaneous determination of prednisone, prednisolone and cortisol in biological fluids was developed with dexamethasone as the internal standard. Samples are extracted with methylene chloride, washed with sodium hydroxide an... | 528,595 | [
-0.2404996,
0.09771163,
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-0.5086639,
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0.1039639,
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-0.06519291,
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-0.03586177,
0.07147371,
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0.1753593,
0.004887327,
0.2183534,
0.08459403,
0.272603,
0.4828075,
0.0002990937,
0.0829127... |
Cimetidine assay in human plasma by liquid chromatography. | An assay for the determination of cimetidine in human plasma is described. Cimetidine was extracted from alkalized plasma with ethyl acetate, washed once over hydrochloric acid, re-extracted into ethyl acetate, and the organic phase was evaporated to dryness. The residue was dissolved in ethanol and injected into a liq... | 528,627 | [
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0.2747365,
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0.2195695,
0.182532,
... |
Rapid and simple determination of aflatoxin M1 in milk in the low parts per 10(12) range. | A method for extracting aflatoxin M1 from milk is proposed in which the use of disposable Extrelut clean-up columns simplifies the analysis considerably in comparison with existing methods. The quantitative determination is based on one-dimensional thin-layer chromatography and fluorescence densitometric measurement. T... | 528,660 | [
-0.09834285,
0.4788524,
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0.4757454,
0.06396159,
0.07002057,
... |
Synonymy of strains of Center for Disease Control group DF-1 with species of Capnocytophaga. | Of eight strains of Center for Disease Control group DF-1 examined, seven had 62 to 87% deoxyribonucleic acid homology with the neotype strain of Capnocytophaga ochracea and one had 72% deoxyribonucleic acid homology with the type strain of C. gingivalis. Deoxyribonucleic acid homology of four strains of Bacteroides oc... | 528,685 | [
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0.02829246,
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0.2801576,
0.1062916,
-0.1575308,
0.1629909,
-0.2498334,
... |
Sulfones and sulfonamides in dermatology today. | Although dapsone and sulfapyridine have been used for years in dermatology, there has not always been a clear understanding of how these agents work. Recent investigation, however, has shed new light on thes agents which now allows a more rational approach to their use. This review is an attempt to familiarize the clin... | 528,697 | [
-0.1488997,
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-0.05083373,
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0.1249137,
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0.1562403,
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Lack of specific effect of adenine arabinoside, human interferon, and ribavirin on in vitro production of hepatitis B surface antigen. | PLC/PRF/5 hepatoma cells continue to produce hepatitis B surface antigen (HBsAg) after greater than 80 passages in vitro, but they do not express other markers of heaptitis B virus (HBV) replication. In this respect, they resemble most liver cells that are persistently infected with HBV. PLC/PRF/5 cells were cultured i... | 528,792 | [
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0.1644261,
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0.001558288,
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0.331131,
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0.1740747,
0.06768985,
-0.2274483,
-0.2466576,
... |
[The effect of calcitonin on contractile function of skeletal muscles (author's transl)]. | The analgesic effect of calcitonin in osteoporosis has been considered to originate from its actions on bone metabolism. However, the author assumed a possible presence of other mechanism, since the analgesic effect of calcitonin manifests in an extremely early phase in which an increase in bone mass is hardly conceiva... | 528,800 | [
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0.3784533,
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... |
Crystallographic study of rhinoliths. | Five nasal stones were extracted from five patients. The etiology and clinical picture have been discussed. The stones were analysed by a crystallographic method, using an X-ray diffraction technique. Their composition was identified as calcium phosphate. | 528,820 | [
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0.377... |
Fate maps and cell differentiation in the amphibian embryo--an experimental study. | The aim of this paper is to test two different fate maps for the amphibian blastula with respect to their predictions concerning the process of cell differentiation. The first of these fate maps is the one proposed by Vogt, according to which all three germ layers can be projected on to the surface of the embryo. The s... | 528,859 | [
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Comparison of the clastogenic and carcinogenic effects of intravenous beta-propiolactone and benzo(a)pyrene in rats. | Scored at 24 hours, the LD-50 of a solution of beta-propiolactone administered intravenously to young rats was 225 +/- 55 mg/kg. Twenty-four hours after a single intravenous injection (100 mg/kg = 1.4 m mole/kg) of beta-propiolactone into male and female rats of both the Long-Evans and Sprague-Dawley strains, the incid... | 528,852 | [
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Development of the tibiotarsus in the chick embryo: biosynthetic activities of histologically distinct regions. | The dynamics of the histological changes which occur in the distal half of the tibial portion of the embryonic chick tibiotarsus from day 8 to day 18 of incubation are correlated with the capacities of histologically distinct zones to incorporate isotopic precursors into mucopolysaccharides and collagen. At the distal ... | 528,862 | [
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The effect of prolonged decompaction on the development of the preimplantation mouse embryo. | A rabbit antiserum to a mouse embryonal carcinoma cell line blocks compaction of cleaving mouse embryos. Cell division is not affected up to the 32-cell stage but intracellular junctions fail to develop. Removal of the antibody at this stage permits compaction to occur and a normal blastocyst develops. Prolonged decomp... | 528,869 | [
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The formation of muscles in regenerating limbs of the newt after denervation of the blastema. | The purpose of this experiment was to examine the relationship, if any, between nerve fibers and the formation of muscle pattern in the regenerating amphibian limb. During embryogenesis, nerve fibers grow into the limb bud at the time when the common muscle blastemas subdivide into individual muscle primordia, whereas ... | 528,874 | [
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Ontogeny of second-order odor-aversion conditioning in neonatal rats. | In Experimental 1, rat pups 1, 3, 5, or 7 days old received a Phase 1 S1-US (Stimulus 1-unconditioned stimulus) pairing calculated to establish a first-order conditioned aversion to S1 (lemon scent). On the next day each pup received a Phase 2 S2-S1 pairing designed to establish a second-order aversion to S2 (orange sc... | 528,883 | [
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Role of conditioned contextual stimuli in reinstatement of extinguished fear. | If the unconditioned stimulus (US) is presented independently of the conditioned stimulus (CS) following extinction, the conditioned response may be reinstated to the CS. Three experiments are reported that suggest that reinstatement is mediated by conditioning to contextual stimuli that are present during both US pres... | 528,893 | [
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Orthographic regularity, positional frequency, and visual processing of letter strings: a reply to Krueger's comments. | In reply to Krueger, we address the issues of lowercase versus uppercase letter strings, words versus pseudowords, repeated letters in the test string, descriptions of orthographic structure, similarity effects, apples and oranges, and interactions of age with other variables. | 528,897 | [
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Framing pictures: the role of knowledge in automatized encoding and memory for gist. | In general, frame theories are theories about the representation and use of knowledge for pattern recognition. In the present article, the general properties of frame theories are discussed with regard to their implications for psychological processes, and an experiment is presented which tests whether this approach yi... | 528,908 | [
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Judgment of contingency in depressed and nondepressed students: sadder but wiser? | How are humans' subjective judgments of contingencies related to objective contingencies? Work in social psychology and human contingency learning predicts that the greater the frequency of desired outcomes, the greater people's judgments of contingency will be. Second, the learned helplessness theory of depression pro... | 528,910 | [
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On the inhibitory nature of binocular rivalry suppression. | During binocular rivalry the average duration of a suppression phase depends on the stimulus strength (e.g., contrast) of the input to the suppressed eye. To determine if a similar relationship exists between stimulus strength and the inhibitory effect of suppression on test probe detectability, a series of experiments... | 528,942 | [
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Comparison of changes in sensitivity and sensation: implications for the response-intensity function of the human photopic system. | Brightness magnitude estimations of foveally presented flashes deviate from a power function. Increment threshold functions for test lights presented upon these same flashes deviate drastically from a constant Weber fraction. These departures from the classic laws of sensation and sensitivity are shown to be in qualita... | 528,947 | [
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Internally augmented displays: contingent aftereffects as performance aids. | Previous research on visual contingent aftereffects has been concerned with examining the effects of various parameters (e.g., spatial frequency and luminance) on the adaptation to, and decay of, contingent aftereffects. The current study tested the viability of using visual contingent aftereffects in a display context... | 528,949 | [
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... |
Time errors and differential sensation weighting. | Sixteen pairs of successive tones, with different amplitude combinations, were presented with 16 combinations of tone duration and interstimulus interval. A separate group of 12 subjects was assigned to each presentation condition and made comparative loudness judgments for each of the pairs. Perceived within-pair loud... | 528,952 | [
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Quantification of the hierarchy of tonal functions within a diatonic context. | Listeners rated test tones falling in the octave range from middle to high C according to how well each completed a diatonic C major scale played in an adjacent octave just before the final test tone. Ratings were well explained in terms of three factors. The factors were distance in pitch height from the context tones... | 528,960 | [
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Letter information and orthographic context in word perception. | Theories of word perception in reading can be categorized in terms of the assumption made about whether or not a word context modifies the feature analysis of its component letters. Independence theories assume that the visual information passed on by feature analysis is independent of word context. Nonindependence the... | 528,961 | [
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Letter detection with rapid serial visual presentation: evidence against word superiority at feature extraction. | Letter detection typically is faster and more accurate in words than nonwords. Experiments 1, 2, and 3 tested the robustness of the word superiority effect using rapid serial visual presentation of words or nonwords. Letter detection was better in words even when the six-letter items were presented one after the other ... | 528,966 | [
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Number of exponential terms describing the solution of an N-compartmental mammillary model: vanishing exponentials. | The solution for a linear mammillary model is always described by a summation of m + 1 negative exponential terms with constant coefficients. m + 1 less than or equal to N, where N is the number of compartments in the model. m is equal to the number of distinct values for the peripheral Ej values. Use is made of matrix... | 529,020 | [
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Time-dependent kinetics. V: Time course of drug levels during enzyme induction (one-compartment model). | Equations were derived to describe the time course of drug levels during auto- and heteroinduction under a variety of input conditions. These equations were based on a pharmacokinetic theory of induction which assumes that metabolic clearance increases exponentially to a maximum value and that the rate of this increase... | 529,024 | [
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Interaction of phenylbutazone with racemic phenprocoumon and its enantiomers in rats. | The interaction of phenylbutazone with the enantiomers and racemic [3H]phenprocoumon was studied in male inbred Wistar-Lewis rats following a single i.v. dose of the three forms of phenprocoumon and chronic oral treatment with phenylbutazone (average plasma concentration of about 60 microgram/ml). Phenylbutazone augmen... | 529,027 | [
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-0.05... |
Microencapsulation and dissolution parameters of undecenovanillylamide: a potential coyote deterrent. | The microencapsulation and dissolution of undecenovanillylamide (I), a potential coyote-aversive agent for use on sheep, were studied. While I has been shown to protect sheep, its short duration of action makes it economically unfeasible. Compound I microcapsules were prepared, and optimum conditions for encapsulation ... | 529,056 | [
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Convenient synthesis of N-alkoxymethylbarbituric acids and N-alkoxymethylhydantoins. | A simple one-step method for the N-alkoxymethylation of barbituric acids and hydantoins is presented. The compounds are N-methoxymethylated or N-ethoxymethylated using phosphorus pentoxide and dimethoxymethane or diethoxymethane, respectively, in a chlorinated solvent. 1-Methoxymethyl-3-ethyl-5-phenylhydantoin showed s... | 529,057 | [
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... |
The morphology of group Ib afferent fibre collaterals in the spinal cord of the cat. | 1. The enzyme horseradish peroxidase (HRP) was injected into single Ib muscle afferent fibres in anaesthetized cats. Subsequently, histochemistry allowed the morphology of the axons and their collaterals in the lumbosacral spinal cord to be determined. 2. Eleven Ib axons were stained, seven from lateral gastrocneminus-... | 529,088 | [
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The role of vasopressin in blood pressure regulation immediately following acute haemorrhage in the rat. | 1. The possible pressor effect of vasopressin immediately after acute haemorrhage has been studied using anaesthetized Brattleboro rats with diabetes insipidus and rats of the Long Evans parent strain.2. A blood loss of 0.5% of the body weight caused a significant decrease in mean arterial blood pressure, measured 10 m... | 529,092 | [
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Epithelial transport pathways of rat colon determined in vivo by impulse response analysis. | 1. A method is described for studying transepithelial pathways for the movement of different solutes and water. Using the blood and the secretory curves of changing tracer activity following an intravenous bolus, the rate of transit of molecules together with their impulse response functions, which reflect the transfe... | 529,121 | [
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[Post-traumatic resorption of a vertebral body in a patient with spondylarthritis (author's transl)]. | Rheumatoid pelvispondylitis in the lumbar spine can be the cause of a fracture of a vertebral body following usually minimal trauma. If no treatment is applied, a pseudo-arthrosis with severe bone resorption can occur. The whole vertebral body was affected in this way in the case reported. | 529,235 | [
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Counselling in the European Economic Community. | Counselling is becoming increasingly important in modern general practice and the relationship between counsellors and general practitioners varies in different places and in different countries. Through a Stanning Overseas Fellowship I had the opportunity of examining this relationship in several countries in Europe i... | 529,240 | [
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Persistent lone atrial fibrillation--its prognosis after clinical diagnosis. | Eighty-three patients whose atrial fibrillation appeared to be permanent and the sole cardiac abnormality at the time of diagnosis were followed for one to 19 years (mean 7.5 years). None suffered systemic embolism. Three died, none of cardiac disease. Sinus rhythm returned in seven. Another six developed features sugg... | 529,243 | [
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0.136033,
0.1265306,
0.1232785,
0.2779213,
0.3162583,
-0.1644323,
... |
Long-term evaluation of colchicine in the treatment of scleroderma. | Fifteen patients with PSS, 4 with CRST syndrome, and 4 with localized scleroderma have been treated with colchicine at the maximum tolerated individual doses for an average of 39 months (range 19--57). All but 2 of the 19 patients with generalized scleroderma and 3 of those with localized scleroderma improved. Patients... | 529,256 | [
0.2460773,
0.009562861,
-0.09738977,
-0.1178409,
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0.03308242,
0.09345891,
0.1507916,
0.1965041,
0.01318368,
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0.06140362,
0.119401,
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-0.07972895,
0.2382943,
0.08049448,
0.2399266,
0.08778539,
0.3503433,
0.0240339... |
Pulmonary hypertension in a child with mixed connective tissue disease. | Mixed connective tissue disease (MCTD) is characterized by high titers of antibody to ribonucleoprotein (RNP) in patients with features of several rheumatic diseases. We describe a child whose MCTD included arthritis, Raynaud's phenomenon, mucocutaneous ulcerations, sclerodermatous skin changes, restrictive lung diseas... | 529,255 | [
-0.09352451,
-0.02892744,
0.008465156,
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0.09289905,
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0.1016119,
0.1363514,
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0.1422624,
0.02820687,
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0.315982,
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0.2614046,
0.08572499,
-0.167628,
0.1314662,
0.09738439,
0.07879535,
-0.278994,
-0.2178857... |
Negative attitudes toward masturbation in sex therapy. | The incidence of masturbation in males and females as reported by Kinsey was cited as basic data to support Gagnon and Simon's theoretical conceptions of differences in the psychosexual development of males and females. The use of masturbation as treatment in sex therapy was reviewed. An inventory to measure negative a... | 529,297 | [
0.2741742,
0.2849836,
-0.1465488,
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0.7566084,
0.01769619,
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0.0796374,
-0.05712429,
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0.03440754,
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-0.1586848,
0.2354997,
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0.09457163,
0.2193644,
-0.2852046,
... |
The role of dreams in sex therapy. | The interpretive use of dreams has become an established part of all dynamic psychotherapies. Their usefulness in sex therapy has thus far not been acknowledged. For the psychodynamically oriented sex therapist dreams can be particularly valuable in furnishing an understanding of those unconscious factors that cause se... | 529,298 | [
-0.2688383,
0.3515165,
-0.1409964,
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0.335085,
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0.2581682,
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0.1534647,
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0.05004055,
0.1413057,
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0.1022383,
-0.2504328,
-0.3014838,
-0.005330574,
0.1150633,
-0.2256832,
... |
Social skills training as an adjunct to sex therapy. | Many single men and women with sex problems lack the skills or confidence to meet potential partners and develop relationships. Social skills training is presented as a useful adjunct to sex therapy with such individuals. The relative strengths of group, workshop, and individual formats are discussed as well as screeni... | 529,299 | [
-0.3012251,
0.2722182,
0.0312185,
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0.3333488,
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-0.3052305,
0.07595927,
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0.008643877,
-0.04622919,
-0.241435,
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-0.3136216,
0.1049573,
-0.2884812,
0.2305901,
-0.114516,
0.1304721,
-0.2720242,
... |
Carcinoma of the esophagus. | Carcinoma of the esophagus, previously thought to be rare in West Africa, is now known to be relatively common in Ibadan. In a 39-month period, extending from January 1975 to March 1978, 30 cases of esophageal carcinoma were seen on the surgical service of the University College Hospital, Ibadan. Males were affected mo... | 529,334 | [
0.1285653,
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-0.3507751,
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0.0441192,
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-0.125242,
0.4744963,
0.1572757,
-0.07114045,
0.1339205,
-0.1794715,
0.002807159,
-0.1359561,
-0.1267506,
0.2534865,
0.2587005,
0.3604252,
0.5557126,
0.4973905,
0.2160623,
0... |
Investigation of molluscicidal activity of certain Sudanese plants used in folk-medicine. II. Molluscicidal activity of the different morphological organs of Gnidia kraussiana Meisn "abu gotna" family Thymelaeaceae. | The molluscicidal activity of Gnidia kraussiana Meisn leaf, stem and root was studied. Each morphological part was extracted with cold and boiling water, different organic solvent and successively with organic solvents of increasing polarity. Throughout it was found that the extracts of the root were the most potent fo... | 529,348 | [
0.1179827,
0.0402544,
-0.04891201,
-0.1517364,
0.4652706,
0.004390311,
-0.2806256,
-0.1253384,
-0.04030966,
-0.1804891,
0.01965092,
-0.0283679,
0.03327524,
0.06265813,
-0.2019554,
-0.09037743,
-0.6791407,
0.2830997,
-0.1231463,
0.4358775,
0.4997282,
0.2427235,
-0.1116838,... |
Chronic hepatitis B antigenaemia in patients with hepatosplenic schistosomiasis. | Thirty-five male patients with decompensated hepatosplenic schistosomiasis were longitudinally studied and divided into 3 Groups; with hepatitis B surface antigen (HBsAg) or antibody (anti-HBs) and a control group negative to both. Patients with HBsAg were persistently carrying the antigen as estimated by radioimmunoas... | 529,349 | [
0.08557194,
-0.1889686,
0.05700754,
-0.0673219,
-0.1016426,
-0.2878911,
-0.1233812,
-0.1767777,
0.04140881,
-0.07555725,
-0.01837292,
0.4094088,
-0.1189271,
0.3596384,
-0.5041909,
-0.3441161,
-0.1203625,
-0.04678341,
-0.08018296,
0.2004468,
0.006115074,
0.003008216,
-0.30... |
Histopathological subtypes of Hodgkin's disease in childhood in Iraq. | The histopathologic studies of 103 patients under 16-years old with Hodgkin's disease including 5 cases who had staging laparotomy during the last 10 years were reviewed. The following conclusions were drawn: 1. No significant sex differences among subtypes were noted. 2. Associated glomerulopathy, nephrotic syndromes,... | 529,487 | [
0.01721609,
-0.317127,
-0.1526816,
-0.1221533,
-0.3701958,
-0.4212157,
-0.1904598,
-0.2775655,
0.0912052,
0.3540901,
0.3820852,
-0.003787435,
0.1555529,
0.007494799,
-0.03480474,
-0.5297956,
-0.1784306,
-0.01780691,
0.2659682,
-0.1255116,
0.5281283,
0.02136033,
-0.1344455... |
Effect of disinfectants with and without usage of detergent for the flexible fiberoptic bronchoscope. | The purpose of this study was to find a safer, more rapid and easier disinfection process for the flexible fiberoptic bronchoscope (F.F.B.) by using ordinary disinfectants and a detergent. Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus aures, E. coli, Serratia marcescens and Candida albicans were used as... | 529,489 | [
-0.1315579,
-0.02872675,
-0.2023237,
-0.06440879,
0.03926796,
-0.4791641,
0.05724192,
0.1085756,
-0.2893329,
0.105729,
0.04569178,
0.3499913,
-0.161829,
-0.02666973,
0.2684356,
-0.2067705,
-0.61457,
0.02896767,
0.008617747,
0.05618186,
0.2352523,
0.1020296,
-0.08582748,
... |
Cardiac puncture in the mouse through the anterior thoracic aperture. | The puncture is performed during ether anaesthesia and will usually give 0.6-0.8 ml within 10-15 s. Blood volumes up to 1 ml have frequently been obtained from adult mice with this method. | 529,768 | [
-0.1530343,
-0.01718654,
-0.5326254,
-0.2945812,
0.1647061,
-0.09027296,
-0.3322602,
-0.1723741,
-0.1148709,
-0.3202569,
0.1584463,
0.2162395,
0.09365049,
-0.1048841,
-0.3985404,
-0.04155823,
-0.2817762,
0.2875239,
-0.01862427,
0.2117845,
0.3904359,
-0.1414248,
-0.0460457... |
A new guinea pig mutant with abnormal hair production and immunodeficiency. | Hairless guinea pigs were born in a closed colony of Hartley guinea pigs. At birth, hairless guinea pigs were smaller than littermates, had wrinkled skin and stunted vibrissae. The most striking abnormality histologically was distension of the upper portion of the pilary canal with thickening of the epidermis. Hairless... | 529,772 | [
0.1888508,
-0.435787,
0.01476646,
-0.1158742,
-0.1452612,
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0.01189723,
0.1030799,
0.1615742,
0.2220738,
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0.3679923,
0.02801634,
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-0.4886657,
-0.1665424,
-0.05600978,
-0.040867,
0.09407349,
0.3352279,
0.04117403,
... |
The woodchuck, Marmota monax, as a laboratory animal. | The woodchuck or groundhog (Marmota monax) has been used as a biomedical model for studies of obesity and energy balance, endocrine and metabolic function, central nervous system control mechanisms and cardiovascular, cerebrovascular and neoplastic disease. Methods of care of a woodchuck colony, techniques for handling... | 529,775 | [
0.09324678,
-0.07292283,
-0.5643704,
-0.2496774,
0.1610884,
-0.2691467,
-0.2339928,
-0.05394386,
0.06133692,
0.008856495,
0.1415155,
-0.009284448,
0.1557753,
-0.2122211,
-0.5924217,
0.1470532,
-0.3507259,
0.01699892,
-0.1498121,
0.1112744,
0.07211174,
-0.0340828,
-0.04347... |
[Guillain-Barré syndrome associated to a type B acute hepatitis (author's transl)]. | A 42-year-old male patient suffers an acute hepatitis with positive HBs Ag and approximately 2 months after its onset, an acute polyneuritis with lessening of conduction velocity and albumino-cytologic dissociation appeared. Both conditions recuperated synchronously in a few months. This association has been only sligh... | 529,867 | [
-0.03305963,
-0.3102661,
0.0426174,
0.04039229,
-0.01407435,
-0.4319984,
-0.2698802,
-0.005276192,
-0.252607,
-0.002645052,
-0.003243305,
0.1192605,
0.07227686,
0.09070214,
-0.04915456,
-0.3274508,
-0.2580958,
0.08945274,
0.04786653,
0.142085,
-0.2263273,
-0.2878646,
-0.0... |
Incorporation of cis- and trans-octadecenoic acids into the membranes of rat liver mitochondria. | The incorporation of dietary isomeric fatty acids into the membranes of liver mitochondria was investigated. Three groups of rats were fed diets containing 3% sunflower seed oil plus 15%, 20%, or 25% partially hydrogenated arachis oil. A fourth group was fed 25% partially hydrogenated arachis oil, but no sunflower seed... | 530,008 | [
-0.3218793,
0.2773373,
-0.1547118,
0.3439755,
0.197725,
-0.272539,
-0.1525504,
0.2132976,
0.1643164,
-0.1574158,
-0.03199709,
0.06461767,
0.2282854,
-0.1673215,
-0.5596446,
-0.1276443,
-0.3600104,
0.2585691,
-0.2244545,
-0.3363831,
0.1250453,
0.4691554,
-0.1661228,
0.08... |
Proteinuria in the exercising dog. | Exercise proteinuria is a transient condition often observed following heavy exercise in man. A general belief is that exercise proteinuria in man is partially due to the decline in renal blood flow (RBF) associated with exercise. The purpose of this study was to determine if exercise proteinuria occurs in the dog, an ... | 530,027 | [
-0.04661492,
0.1824242,
-0.2863197,
0.1181087,
0.1480264,
-0.6569251,
0.05775742,
-0.1212171,
-0.2104287,
-0.3228592,
0.2501191,
-0.09641091,
0.01756582,
-0.2828865,
-0.09711129,
-0.01161859,
-0.08828428,
0.3159646,
0.06746686,
-0.2658107,
-0.2682,
0.1455421,
0.1220784,
... |
[Human trypanosomiasis foci in OCCGE member countries: present situation (author's transl)]. | Using official epidemiological informations, authors study evolution of sleeping sickness epidemiological situation in seven OCCGE countries: Benin, Ivory Coast, Upper Volta, Mali, Niger, Senegal and Togo. 745 new cases were diagnosed in 1977 and more than 600 in 1978. We observe the extinction of historic foci in Nige... | 530,040 | [
0.322941,
-0.2818355,
0.2593796,
-0.1284858,
-0.008145329,
-0.2578329,
-0.2021517,
-0.3644083,
-0.04822664,
-0.3139918,
0.2310787,
-0.3334973,
-0.041714,
0.3467878,
-0.5300739,
-0.164293,
-0.4338404,
-0.1450135,
0.3724669,
0.026751,
0.07821181,
0.4708662,
-0.1126405,
0.... |
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