title stringlengths 0 901 | abstract stringlengths 3 9.89k | PMID int64 22 25.3M | embedding listlengths 768 768 |
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Demonstration of infectivity in marmosets experimentally infected with hepatitis A. | Experimental infection of marmosets with marmoset serum (Berlin strain) suggests that the liver is not necessarily the primary site of virus replication since infectivity is found in blood long before the clinical onset of hepatitis. | 812,746 | [
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Avoidance of shunt dependency in hydrocephalus. | An approach to the treatment of neonatal hydrocephalus is proposed which is intended to reduce or eliminate shunt dependency by increasing the effectiveness of remaining pathways of absorption of cerebrospinal fluid. In suitable cases, intermittent cranial compression by means of an elastic bandage or a helmet with an ... | 812,752 | [
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Insulin secretion in the perinatal period of the rat in vivo and in vitro effects of glucose and gibenclamide (HB 419). | During the perinatal period of the rat the effect of glucose and glibenclamide (HB 419) on the secretion of insulin was studied in vivo and in vitro. In the in vitro experiments isolated islets of 21 day old fetal and 5 day old newborn rats were perifused wtih 16.7 mM glucose or 16.7 mM glucose plus 1 mug/ml glibenclam... | 812,756 | [
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Negative complementation at the notch locus of Drosophila melanogaster. | Four Abruptex alleles (AxE1, AxE2, Ax9B2, and Ax16172) have been mapped within the Notch locus. Based on their visible phenotypes and their interactions with one another and with N mutations, the Ax alleles can be divided into two groups. Heterozygous combinations of members of the same group are intermediate in phenot... | 812,768 | [
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Elements causing male crossing over in Drosophila melanogaster. | A second chromosome line of Drosophila melanogaster (Symbol: T-007) has previously been shown to be responsible for the induction of male recombination. In the present investigation, the genetic elements responsible for this phenomenon have been partially identified and mapped. A major element (Symbol: Mr, for Male rec... | 812,770 | [
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Leukocyte migration inhibition by a specific antigen in human brucellosis. | Leukocyte migration inhibition /LMI/ tests were carried out in 19 patients with Brucella abortus bovis infection and in 18 healthy control subjects using killed Brucella abortus bovis as antigen. In the brucellosis group a statistically significant LMI was observed, as compared to the members of the control group. Usin... | 812,829 | [
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Duodenum-, ileum- and colon-specific antigens. | Antigens specific for discrete segments of the intestinal tract of germ-free rats have been identified. There is at least one duodenum-, one ileum- and one colon-specific antigen. In addition there is an intestine-specific antigen present at all levels of the bowel. The intestine-specific antigens are found in the gobl... | 812,830 | [
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Ewing's tumor. Review of 73 cases. | Observations on 73 cases of Ewing's tumor confirmed that this neoplasm occurs in twice as many males as females, mostly between the ages of 11 and 20. In contrast with other reported series, 61.6% of lesions in our patients were in the flat bones. Definite diagnosis cannot be based solely on clinical and radiological c... | 812,834 | [
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A decision theory approach to measuring severity in illness. | The purpose of this study was to evaluate the applicability of a multiattribute utility model for measuring the severity of a patient's illness. A single medical problem (an analysis of the costs and benefits of different burn care systems) was used to test the model. Physicians estimated the relative importance of and... | 812,850 | [
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Genetic and physiological classification of periplasmic-leaky mutants of Salmonella typhimurium. | Mutants of Salmonella typhimurium that leaked periplasmic proteins were isolated. Four classes of mutants were identified by their increased sensitivity to dyes, detergents, or antibiotics. Conjugation studies indicated that representatives of two classes mapped in the proA-galE region of the Salmonella chromosome and ... | 812,862 | [
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Patterns of spore locations in pairs of Bacillus cereus sporangia. | The location patterns, relative to the cross wall, of terminal-to-subterminal Bacillus cereus spores were determined in pairs of sporangia. The presence of three types of patterns suggests that spores are randomly located, but medium-dependent variability of the frequency ratios of the patterns strongly suggests that n... | 812,863 | [
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Evolution of the transcription complex during sporulation of Bacillus subtilis. | Ribonucleic acid polymerase activity in partially purified extract of cells of Bacillus subtilis harvested at different times (t-1, to, t1, and t2) was studied by zone centrifugation. During the course of sporulation, vegetative sigma-factor activity decreased and the transcription complex lost some of its affinity for... | 812,865 | [
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Intercellular adhesive selectivity. II. Properties of embryonic chick liver cell-cell adhesion. | Studies directed at understanding the molecular basis of liver cell homotypic adhesion are presented. An assay which measures the rate of adhesion of isotopically labeled (32PO4) embryonic chick liver cells to liver cell aggregates, described in a companion paper, has been used to investigate the problem of intercellul... | 812,875 | [
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Improved transport system for Neisseria gonorrhoeae in clinical specimens. | Protective transport media have to be used to preserve Neisseria gonorrhoeae in clinical specimens during their transit to the laboratory. In this study, a CO2- environment chamber, the Jembec chamber, was used for transport of clinical speciments requiring examination for gonococci. The survival of N. gonorrhoeae pres... | 812,885 | [
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Enteric fever in Scotland, 1967-1974. | A review of 194 cases of enteric infection in Scotland during 1967-74, is reported. Diagnosis was confirmed by the laboratory isolation of Salmonella typhi (64 cases), S. paratyphi A (3) and S. paratyphi B (127), from blood or faeces; 174 persons were clinically ill and 20 were symptomless infections. Most patients (81... | 812,902 | [
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Oncorna-like viruses in baboon prostate tissue. | Oncorna-like virus particles were observed in prostate tissue of 2 of 11 baboons inoculated 3 years previously with a chemical carcinogen. There were no indications, however, of any relationship between the carcinogen and the development of virus particles. Biopsy specimens from the animals showed no evidence of neopla... | 813,008 | [
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Cocarcinogenic activity of peroxy compounds. | Peracetic acid was a potent tumor promoter and a weak complete carcinogen on the skin of female ICR Swiss mice. "Decomposed peracetic acid" was inactive as a tumor promoter, as were 3% [hydrogen peroxide and 5%] urea peroxide; 1% perbenzoic acid and m-chloroperbenzoic acid were active tumor prototers. | 813,010 | [
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[Transplantation of vital islands of Langerhans in diabetic animal recipients]. | Pancreatic islets of 300 g-Lewis-rats have been transplanted to 200 g streptozotocin-diabetic rats after preparation by manual-dissection method and by the Ficoll-method. The transplantation of more than 500 intact pancreatic islets into the peritoneal cavity of streptozotocin-diabetic-Lewis-rats results in a significa... | 813,070 | [
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Isogenic and allogenic transplatation of isolated langerhans islets into the liver. | This preliminary experimental report confirms the previous interest of isolated endocrine islet transplantation. Moreover a new "privileged position" for the islets grafts is proposed and is as uneventful as a liver biopsy. The functional value of this grafting procedure has been assessed on biological and functional c... | 813,071 | [
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A quantitative theory of transfection in B. subtilis. | A theory of transfection is developed which describes three different types of experiments in transfection: The concentration dependence of transfection, transfection with marker rescue, and the mapping function in transfection crosses. The theory is applicable to transfection systems exhibiting quadratic or higher ord... | 813,107 | [
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[The use of videotape recordings in behavior therapy in children (author's transl)]. | The vast majority of disturbances of child behavior are due to improper methods of upbringing. Alteration of the child's misbehavior is therefore best done by re-education of the parents. In this paper, a model for the modification of the behavior of mother and child by means of videotape recordings is described and il... | 813,115 | [
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[Chronic headache and autonomic therapy with particular reference to therapeutic local anesthesia (author's transl)]. | Chronic headaches often have a multifactorial pathogenesis. We try to apply our therapeutic plan according to the analysis of these pathogenetic factors. Therapeutic local anesthesia has a particular place in the peripheral irritation syndrome. Three possible points of application are discussed: the source of irritatio... | 813,128 | [
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Repair of UV-induced DNA damage in recombination-deficient strains of Bacillus subtilis. | To clarify the role of gene products for genetic recombination which might be concerned in excision repair, the repair of DNA lesions induced by ultraviolet (UV) irradiation was examined under non-growing conditions with a variety of recombination deficient (Rec-) mutants of Bacillus subtilis. The extent of repair was ... | 813,136 | [
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Continuous nocturnal intragastric feeding for management of type 1 glycogen-storage disease. | The clinical and biochemical abnormalities associated with Type 1 glycogen-storage disease can be reversed by avoidance of hypoglycemia and secondary hormonal flux. Three patients with Type 1 disease were treated with intragastric infusions of a high glucose formula at night with three-hour starch feedings during the d... | 813,144 | [
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Various bilirubin conjugates in pregnant and nonpregnant rats with and without phenobarbital treatment. | The relative participation of bilirubin conjugating systems other than uridine diphosphate glucuronic acid-dependent bilirubin glucuronyl transferase in 21-day pregnant (P) and nonpregnant (NP) rats with and without prior phenobarbital (PB) administration was studied. Relative enzyme activities of 74.5%, 17.6%, and 7.9... | 813,177 | [
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Similarities among hypervariable segments of immunoglobulin chains. | A human lambdaV (Mcg) and a human lambdaII (Vil) myeloma protein have identical sequences in their first hypervariable segments although they differ at 21 positions throughout the variable region. If a different structural gene is responsible for each subgroup, the findings favor insertion of information for the hyperv... | 813,220 | [
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Incidence of antibiotic resistance and transmissible R factors in the gram-negative bowel flora of hospital patients on admission. | Stool specimens obtained on admission of 95 patients to a male urological ward were examined quantitatively for antibiotic-resistant gram-negative aerobic bacteria. All patients excreted resistant strains of some kind; 67% resistant Escherichia coli strains. Organisms resistant to sulphonamides, tetracyclines, and stre... | 813,296 | [
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Effect of metacycline treatment on non-acute prostatitis. | Sixty-nine patients with symptoms of non-acute prostatitis were treated with metacycline and placebo according to the double-blind crossover technique. The patients reported improvement significantly more often after metacycline than after placebo treatment. But no difference was found between metacycline and placebo i... | 813,297 | [
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-0.04198598,
0.0543... |
A decalification method for ultrastructure of echinoderm tissues. | Decalcification of echinoderm tissues for electron microscopy can be achieved after glutaraldehyde-osmium fixation by treatment with a 1:1 mixture of 2% ascorbic acid and 0.3 M NaCl for 12-24 hours. Electron photomicrographs of material decalcified by this procedure are superior to those from EDTA-treated tissue and sh... | 813,335 | [
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0.3087314,
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0.3539501,
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... |
[Use of immunofluorescence technic for the routine diagnosis of group B Streptococci]. | The authors tested the use of the immunofluorescence technique for the routine examination of milk samples for the contamination with group B streptococci (Str. agalactiae). The conjugates were prepared from rabbit sera; the rabbits were immunized by a polyvalent vaccine containing the antigens of all six types of Str.... | 813,352 | [
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0.02163374,
0.45198,
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-0.021445... |
[Sarcosporidia and sarcosporidiosis in agricultural animals. II. Sarcosporidiosis in cattle]. | A total of 458 cows, oxen, and calves (up to the second year of age) were studied over the 1971-1973 period. The animals were slaughtered at the abattoir of the town of Bourgas, originating from 59 communities on the territory of Bourgas district where the field and feeding conditions varied. Samples were taken from th... | 813,365 | [
-0.1382547,
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0.4098163,
0.3174621,
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0.... |
The glomerular mesangium in hypertension: a morphometrical comparison of nephrosclerosis with mesangioproliferative glomerulonephritis on renal biopsies. | Glomerular changes were morphometrically studied in renal biopsies of 27 cases of nephrosclerosis showing clinically benign or malignant hypertension and of 15 cases of mild mesangioproliferative glomerulonephritis with hypertension. In nephrosclerosis, there was a mild increase in mesangial matrix without cell prolife... | 813,366 | [
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0.050482... |
[Persistence of the primitive aortic conus in normal positioning of the great vessels of the heart. A contribution to the formal independence of bulbar contraction inhibition]. | A hitherto undescribed cardiac malformation, characterized by persistence of the primitive aortic conus and normal positioning of the great vessels, is reported and used to discuss the theory of bulbar resorption and the hypothesis of conal growth. The persistence of the primitive aortic conus is explained by the absen... | 813,369 | [
-0.006076185,
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0.03771486,
0.3104717,
0.01153414,
0.0576... |
Deveolpment of hypertension in rats maintained on a sodium deficient diet and bearing a mammotropic tumor (MtTF4). | Implantation of a mammotropic tumor (MtTF4), secreting growth hormone, prolactin, and corticotropin, in female rats of Fischer F344 strain causes hypertension, vasculitis, renal and cardiac hypertrophy, and extensive renal and cardiac lesions. When rats of the same strain were implanted with the MtTF4 tumor but sodium ... | 813,373 | [
-0.158337,
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... |
[Ultrastructure and morphogenesis of ceroid pigment. I. Phagocytosis and formation of lipid-containing lysosomes in Kupffer Cells after intravenous injection of unsaturated lipids (author's transl)]. | Wistar rats were injected intravenously with cod liver oil emulsion. The phagocytosis of these lipids by the Kupffer cells as well as the formation of lipid-containing lysosomes were studied electron microscopically within a period of 5 min to 12 hrs. The emulsified lipids are incorporated into the cytoplasm by membran... | 813,375 | [
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0.4052761,
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0.0083... |
Histological and autoradiographical findings in the immunologically stimulated spleen. | In order to estimate the role of a possible immunological coeffect on the splenic cellular proliferation during wound healing after mechanical or thermal lesions of internal organs, light microscopical and autoradiographical investigations with tritiated thymidine were performed on spleens of non-germfree rats, immuniz... | 813,376 | [
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0... |
[Investigations of cellular defense mechanism against Pseudomonas aeruginosa in mucoviscidosis (author's transl)]. | In the bronchial secretion of patients with mucoviscidosis Pseudomonas aeruginosa besides Staphylococci can be isolated very often. The part of disturbances in the cellular defense mechanisms was investigated by the stimulation of the nitroblue-tetrazolium-reduction after in vitro-incubation with Pseudomonas aeruginosa... | 813,407 | [
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0.3478356,
0.3899755,
0.09977701,
0.327927,... |
[About the formation of volatile products during lipoxigenase-linoleic-acid reaction (author's transl)]. | Soya-lipoxigenase (E.C. 1.13.1.13) is incubated by linoleic acid at room temperature; the arising volatile products are isolated by different methods, concentrated, and investigated by means of gas chromatography. If the non-volatile hydroperoxides, formed during the incubation are also injected, 15-20% are decomposed ... | 813,417 | [
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0.1... |
[A change in the spontaneous and evoked activity of rabbit visual cortex neurons upon stimulation of different regions of the hypothalamus]. | The influence of stimulation of different hypothalamic areas on spontaneous and flash evoked electrical activity of visual cortex neurones was studied in acute experiments on rabbits by means of extracellular records. Stimulation of most parts of the hypothalamus depressed both kinds of neural activity. Stimulation of ... | 813,416 | [
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0.06650316,
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Histoenzymological mapping of acid phosphatase and 5-nucleotidase in the diencephalic and mesencephalic centers of Uromastix hardwickii. | The study deals with the histoenzymological mapping of acid phosphatase and 5-nucleotidase in the various nuclei of diencephalon and mesencephalon of Uromastix hardwickii. Almost all the nuclei and the fiber tracts reveal positive activity, both for acid phosphatase and 5-nucleotidase, althouh the intensity of the enzy... | 813,482 | [
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0.1367265,
0.4478554,
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... |
ICI 74,917: a new anti-allergic drug administered by pressurised aerosol. | Ten patients with allergic rhinitis were challenged intranasally with allergen before, and half an hour, 2 hours and 4 hours after intranasal administration of placebo, disodium cromoglycate powder and an aerosol containing ICI 74,917, a new compound with anti-allergic action. ICI 74,917 had a maximum protective effect... | 813,488 | [
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-... |
Effects of artificial intraocular pressure elevation on the corneal endothelium in the vervet monkey (Cercopithecus ethiops). | Both eyes of anesthetized vervet monkeys were perfused with mock aqueous humor for 3-7 hours. By adjusting the height of a reservoir connected to the anterior chamber of each eye the intraocular pressure in one eye was maintained at 33-44 mmHg and in the other eye it was a few mmHg above the spontaneous level (12-15 mm... | 813,491 | [
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Congenital Chagas disease. | Two different histological types of congenital Chagas disease are defined. In one type, parasites were seen within the skeletal and cardiac fibers, and in the other, they are found mostly within the cells of the reticuloendothelial system. The latter was often associated with parasitized giant-cells with a single, lobu... | 813,519 | [
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0.1082632,
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Evaluation of a prototype air-venting inline intravenous filter set. | A prototype inline intravenous final filter with a large filtration area and an air-elimination feature was evaluated. Adequate and uniform flow rates were maintained with infusion solutions containing cephalothin and ampicillin, while with oxytetracycline, flow rates decreased significantly. Challenging the unit with ... | 813,522 | [
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0.31297,
... |
Hyperacute renal allograft rejection in the primate. Therapeutic limitations of antiplatelet agents alone and combined with heparin. | Two antiplatelet drugs, pyridinolcarbamate and Sudoxicam, were tested separately and in combination with heparin for their ability to modify experimental hyperacute renal allograft rejection in primates. Pyridinolcarbamate delayed and amerliorated tissue injury and obstructive thrombosis but only minimally prolonged re... | 813,525 | [
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0.1... |
The cephalometric analysis of Cercopithecus aethiops. | A Steiner-based cephalometric study of 46 adult Vervet monkeys was undertaken using craniometric points as closely correlated to those in the human as possible. On tracings of each cephalogram 13 measurements were recorded. The results were statistically analysed. Whilst the monkey face does vary individually this vari... | 813,528 | [
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Growth of the maxillary complex in the rhesus monkey (Macaca mulatta). | The growth of the maxillary complex of 36 rhesus monkeys (Macaca mulatta) was analyzed quantitatively and qualitatively during four defined stages of postnatal development (i.e., infant, juvenile, adolescent, young adult). At each stage, growth was observed during a 24 week period. Since some animals were observed duri... | 813,530 | [
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0.22867... |
Renovascular resistance and noradrenaline. | Stimulation of the renal nerves can cause cortical vasoconstriction either by direct activation of vascular smooth muscle or by the generation of angiotensin II following renin release from the juxtaglomerular cells. High doses ( greater than 5 mug/min) of the renal neurotransmitter noradrenaline (NA) infused into the ... | 813,534 | [
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0.1739418,
-0.052... |
Whole body transmission-emission scanning with whole body camera. | Whole body transmission-emission scanning was carried out using a whole body camera. A disk source 30 cm in diameter filled with 99mTc was used for transmission scanning. Correct interpretation of emission scanning requires accurate anatomical orientation of the images. The value of whole body transmission-emission sca... | 813,536 | [
-0.2278733,
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0.3542715,
-0.04758931... |
Bactericidal and haemolytic activity of complement in bovine colostrum and serum: effect of proteolytic enzymes and ethylene glycol tetraacetic acid (EGTA). | Bovine colostral whey (CW) possessed heat-labile bactericidal activity against an enteropathogenic serum-susceptible strain of Escherichia coli. Activity was readily destroyed by trypsin or rat pancreatic juice, and less readily by chymotrypsin. Loss of activity due to trypsin, but not by chymotrypsin, could be prevent... | 813,560 | [
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0.0622772,
0.5834605,
0.001... |
Carcinoma of the oral cavity. An analysis of 478 cases. | Evaluation and analysis of 478 cases of carcinoma of the oral cavity treated from 1947 through 1970 shows a significant improvement in radiotherapy in the supervoltage (Co60) era. Survival in the early stages of disease (I and II) improved in the supervoltage era but not in the later stages of disease (III and IV). Res... | 813,586 | [
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... |
[Prevention of ventricular tachycardia after myocardial infarction using an intracorporeal pacemaker. Apropos of one case]. | Pacemaker implantation is seldom as a treatment of ventricular tachycardia after chronic myocardial infarction. In this new case, pacemaker implantation was successfull for over a year after partial surgery failure. A regular demand pacemaker with bipolar pervenous catheter inserted in the coronary sinus is to give atr... | 813,597 | [
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0.02639312... |
Functional recovery with and without training following brain damage in experimental animals: a review. | Review of observations on experimental animals following brain damage shows that some functions may recover spontaneously and functional accomplishment can be increased by training even with unchanged reflex status. Training consists of a combination of two basic techniques: forced use of the impaired body part, and in... | 813,611 | [
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0.2821996,
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0.01613401,
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Oxidative phosphorylation during glycollate metabolism in mitochondria from phototrophic Euglena gracilis. | Mitochondria were isolated by gradient centrifugation on linear sucrose gradients from broken cell suspensions of phototrophically grown Euglena gracilis. An antimycin A-sensitive but rotenone-insensitive glycollate-dependent oxygen uptake was demonstrated in isolated mitochondria. The partial reactions of glycollate-c... | 813,630 | [
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0.1471466,
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Microsomal cytochromes of Candida tropicalis grown on alkanes. | A comparison of methods used in isolating microsomes and in measuring microsomal cytochrome P-450 demonstrated that separation following protoplast lysis gave the best results. By this latter technique a high amount of cytochrome P-450 (0.2-0.3 nmol/mg) was recovered but cytochrome P-420, considered as the denatured fo... | 813,770 | [
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0.5909691,
-0.05957402,... |
Proton nuclear magnetic resonance studies of Nepsilon-Me-His2-thyroliberin. An hyperactive analogue of thyroliberin (thyrotropin-releasing factor). | The 270 MHz Proton magnetic resonance spectra of N-epsilon-Me-His2-thyroliberin in solution in deuterium oxide and deuterated dimethylsulfoxide have been analyzed. All the spectral features (chemical shifts, coupling constants, temperature dependence of NH peptide resonances) clearly show that no significant conformati... | 813,772 | [
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[Comparison of histone-like proteins from blue-green algae with ribosomal basic proteins of alga and wheat germ histones]. | Histone-like proteins was found in blue-green alga Anacystis nidulans, which has no nucleus. F2b2, F2a2, F2a1 fractions were found in histone-like algae proteins and no fraction F1. Content of basic amino acids (arginine being prevailing in algae protein) is quite identical in histone-like algae proteins and in wheat g... | 813,782 | [
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Sodium cromoglycate in chronic asthma. | A long-term double-blind trial of sodium cromoglycate (SCG) with and without isoprenaline, with a placebo control, was undertaken in Edinburgh to a similar design as a previously reported trial in London. The results from the two centres were compared and combined. In Edinburgh 41 patients were studied for 36 weeks and... | 813,809 | [
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0.008898722,
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Serotonin axons in the supra- and subependymal plexuses and in the leptomeninges; their roles in local alterations of cerebrospinal fluid and vasomotor activity. | Extensive plexuses of serotonin axons form a supra- and subependymal system in the walls of the ventricles, in the arachnoid sheath around major cerebral blood vessels, and in the pia over the spinal cord. These have been demonstrated by autoradiography after continuous intraventricular perfusions of exogenous [3H]5-HT... | 813,816 | [
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0.309897,
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0.07587... |
Induction of lymphatic leukemia in non-inbred mice and its control with glucocorticoids. The Lucy Wortham James lecture. | A set of feedings of a lipid solution of 7,12-dimethylbenz(a)anthracene given biweekly by gastric intubation to young adult female mice of the non-inbred CF-1 strain elicited lymphatic leukemia in 73% of the animals in 112 +/- 24 days. Brief ether anesthesia facilitated alimentary administration of hydrocarbons and ste... | 813,825 | [
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[A Bacillus thuringiensis Berliner mutant resistant to oxytetracycline, with temperature-sensitive sporulation]. | Sporulation of an oxytetracycline-resistant mutant is blocked at 37 degrees C and delayed at 30 degrees C; shift up and shift down (30-37 degrees C) and assays of some extra- and intracellular enzymes show that an early event (stage II) is concerned. | 813,848 | [
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0.161... |
[The effect of electromagnetic radiation of wavelength in the millimeter range on bacterial growth]. | The study on the growth of E. coli cells under low power microwave irradiation the frequency of which can vary between 70 and 75 GHz, demonstrates that in the neighbourhood of 70.5 and 73 GHz a slowdown of growth is most frequently observed. On the contrary, the survival is not altered as long as the power of the irrad... | 813,858 | [
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0.2240466,
0.08212... |
[Spiriopsis adipophila Arvy and Peters 1972 (=Spirinella edipophila Arvy and Delage 1966), parasite of Ephemeroptera, is a sporozoan]. | The occurrence of micronemes and paraglycogen in the cytoplasm of Spiriopsis adipophila (Arvy and Delage 1966) Arvy and Peters 1972, incites us to consider this parasite of Ephemeroptera larvae as the infesting stage of a Sporozoon. It could be in fact a new member of the Barrouxiidae, a family of Coccidia parasitic in... | 813,863 | [
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0.1680139,
0.1548323,
0.00340772... |
[Evidence of benzo-3, 4-pyrene in the water and organic sediments of briny pools of polynesian atolls. Biotic and abiotic factors]. | The presence of 3,4-benzopyrene is reported in samples of water and sediments from three briny ponds free from pollution of exogenous origin belonging to three different atolls of Polynesia. The synthesis of this hydrocarbon seems to be dependent on the presence of abundant phytoplancton and of bacterial flora. | 813,870 | [
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0.4856481,
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[Structural transitions of the Torpedo cholinergic receptor in its membrane state as demonstrated by a fluorescent local anesthetic: quinacrine]. | Differential fluorescence emissions of receptor-rich membrane fragments prepared from Torpedo marmorata electric organ and labelled by a fluorescent local anesthetic quinacrine are obtained by energy transfer. Addition of a cholinergic effector causes two classes of structural transitions, fast and slow, which are rela... | 813,874 | [
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[Electron microscopic study of the reticulated cellular structures induced in Lepidoptera by baculovirus]. | Five of six Baculovirus species studied induce cytoplasmic and nuclear fibrous sheets, observed by electron microscopy, within infected cells of lepidopterous. The reticulated structures, revealed by fluorescence microscopy, assimilate the fibrillar substance induced by these viruses thanks to the affinity they show fo... | 813,875 | [
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0.007794161,
... |
[Karyotype of Nicotiana tabacum L. artificial haploids]. | Twenty-five platelets obtained by culturing anthers of Nicotiana tabacum L. var. "Wisconsin 38" are haploids (22) or mixoploids (3). Numerous aneuhaploid cells were observed in 15 haploid plants (n = 18, 20, 22, 23, 25, 26, 28). Such a chromosomic variability careful caryological studies of haploid plants before these ... | 813,877 | [
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0.4987659,
0.3286247,
-0.0911277... |
[Electrical activity of the medio-basal cells of the hypothalamus of the ewe after estrogen injection]. | Single intravenous injections of estradiol benzoate in castrated, progesteron primed ewes, appeared to activate 34% of the cells located in the hypothalamus, namely in infundibular and ventromedial nuclei. 53% of the activated cells exhibited a typical bursting pattern of discharge. The increase in the mean firing rate... | 813,883 | [
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0.2807525,... |
[Ultrastructure of the "rudimentary secretory photoreceptors" (RSP) of the embryonic pineal body of Lacerta vivipara J. (Reptilia, Lacertilia) and the origin of the RSP of Sauropsida]. | The "secretory rudimentary photoreceptor-cells" of Lacerta vivipara J., during embryonic stages, exhibit photosensory differentiations (disks). Our ontogenetic observations agree with the phylogenetic studies and support the concept of a "sensory cell line" (Colin, 1969) in the pineal organ of vertebrates. | 813,890 | [
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[Comparison of the effects of di-n-propylacetate and oxazepam on spontaneous and conditioned responses in mice]. | When effects of di-n-propylacetate (nDPA) on various patterns of behaviour in mice in "novel environment" tests are compared with the effects of oxazepam, it appears that the stimulating action of nDPA is more evident than its antianxiety effects. Learning seems to be facilitated by this stimulating action. | 813,893 | [
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[Termination of imaginal diapause of female Tetrix undulate (Sow.) (Orthoptera, Tetrigidae) by implantation of the corpora allata of an active female Locusta migratoria]. | The effect of implanted active corpora allata on the reproductive diapause in adult females of grasshopper, Tetrix undulata (Sow.) was investigated. Implantation of one corpus allatum originating from sexually mature, adult female Locusta migratoria donors effectively terminated reproductive diapause by inducing oocyte... | 813,901 | [
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0.5214829,
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[Paramagnetism of activated amino acids]. | In continuation of magnetic work on intracellular active fractions, the author, as in first part of previous work, studies the biological synthesis of proteins. He shows that in activating AA, ATP gives them strong paramagnetism and the data values of massic susceptibilities for 21 of them are given. The homogeneity of... | 813,908 | [
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... |
[Comparative subcellular localization of para-hydroxylated derivatives of ephedrine and amphetamine in rat brain]. | Localisation of noradrenaline, hydroxyamphetamine, hydroxynorephedrine and hydroxyephedrine was studied in adrenergic granules of rat's brain in normal animals and in animals injected with hydroxy-6 dopamine. In normal animals the synaptosomes fixed noradrenaline, first and then, in decreasing order, hydroxynorephedrin... | 813,909 | [
-0.2092314,
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... |
The quantitation of antibody in farmer's lung syndrome using a radioimmunoassay. Results of a clinical survey and comparison of three serological methods. | Three serological tests for antibody to Micropolyspora faeni, the precipitin test (Ouchterlony double diffusion test in two dimensions) the fluorescent antibody test (double-layer technique using patient's serum in middle layer) and a quantitative radioimmunoassay for IgG antibody were applied to cases of farmer's lung... | 813,924 | [
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... |
[Metabolic effects of parenteral administration of a combined carbohydrate solution (glucose, fructose, xylitol 2:2:1) (author's transl)]. | A combined carbohydrate in fusate (glucose, fructose, and xylitol in the ratio of 2:2:1) was administered to eight healthy adults at the rate of 0.5 g.kg-1.h-1 for 12 hours. The solution also contained 80 mmol sodium, 30 mmol potassium, 2.5 mmol magnesium, 2.8 mmol phosphate and 110 mmol chloride per litre. Glucose and... | 813,983 | [
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0.12272,
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Biological activity of somatostatin and somatostatin analogs on inhibtion of arginine-induced insulin and glucagon release in the rat. | Somatostatin and dihydrosomatostatin (H2somatostatin) are equipotent in inhibiting insulin and glucagon release induced by arginine in the rat. The ID50 of H2somatostatin on insulin and glucagon secretion induced by arginine are 14 +/- 6 and 6 +/- 10 mug/100 g BW respectively, similar to the ID50 of H2somatostatin (18 ... | 813,991 | [
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Reversible inhibition of ovulation in the rhesus monkey by polydimethylsiloxane subdermal capsules of megestrol acetate. | The effect of megestrol acetate in polydimethylsiloxane subcutaneous implants on menstrual cycle, ovarian function, and uterine histology of adult parous rhesus monkeys was studied. Release rates of 129.6 and 64.8 mug/day inhibited ovulation and produced amenorrhea in all of the treated monkeys. The plasma progesterone... | 814,022 | [
0.003583395,
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0.055473... |
[Characteristics of the scutellar bristle pattern in Drosophila melanogaster mutants al, h and al; h]. | The object of this study was the distribution of macrochaetae and microchaetae on the scutellum of Drosophila melanogaster in wild-type individuals and in three mutant genotypes: h/h, al/al and al; h/al; h. The mutation h (hairy) causes the appearance on the scutellum of extra microchaetae with a definite distribution ... | 814,052 | [
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Thyroid function levels and thyrotropin responses to TRH administration in manic patients receiving lithium carbonate. | To determine the pituitary-thyroid dysfunction in the manic patients receiving lithium carbonate, determination of thyroxine concentration, T3 Resin Uptake, thyrotropin concentration in plasma, and thyrotropin responses to administration of TRH, 500 mug i.v., were made. Eight manic patients were examined before and aft... | 814,073 | [
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The effect of conditioning the medium in DRosophila, in relation to frequency-dependent selection. | In the context of frequency-dependent selection, the effect of conditioning the medium, by the previous culture of larvae of a given strain, on the survival of subsequent larvae of the same or different strains was measured. Six strains were sued, some inbred and some lines selected for low or high sternopleural bristl... | 814,110 | [
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... |
Formation of beta-methylmalate and its conversion to citramalate in Rhodospirillum rubrum. | Using a cell-free extract of Rhodospirillum rubrum, studies were made of the condensation reaction between propionyl-CoA and glyoxylate. When [14C]propionate was incubated with the extract in the presence of glyoxylate, ATP, CoA, Mg2+, and Mn2+, radioactivity was incorporated into several compounds. Two of the main pro... | 814,116 | [
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Purification of normal and inactive galactosemic galactose-1-phosphate uridylyltransferase from human red cells. | A rapid method is described for the purification of galactose-1-phosphate uridylyltransferase (EC 2.7.7.12) from human red blood cells by the use of DEAE-cellulose and two steps of affinity chromatography on a "uridine-aminohexyl" agarose column. The enzyme consists of two identical subunits of 31,000 molecular weight ... | 814,122 | [
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0.02512903,
0.4268432,
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0.1852949,
0.1947666,
0.1425861,
0.1799666,
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0.139726,
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0.1902624,
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0.4292088,
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0.1530259,
0.4707648,
0.3343746,
-0.1816176,
0.0... |
Stimulation of rhesus monkey GH release: arginine vs plasma volume expansion. | Plasma GH and cortisol responses were examined in unanesthetized adult male rhesus monkeys infused with approximately 30 ml (8.3 ml/kg) of arginine monohydrochloride (Arg 0.5 g/kg), 0.9% saline (NS) or Dextran 75 and following 15 ml infusions of acid-saline (AS), or somatostatin (GHRIH 30 mug/kg). None of the infusions... | 814,133 | [
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0.2601863,
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A new extractant for serum thyroxine by enzymatic digestion of thyroxine binding proteins. | The use of a pepsin solution to digest serum proteins results in quantitative release of thyroxine from carrier proteins. This extraction method greatly simplifies the original Murphy and Pattee (1) competitive protein-binding assay for serum thyroxine. The simplicity and efficiency of this extractant suggest that it m... | 814,134 | [
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0.08924659,
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Behavioral thermoregulation in the squirrel monkey when response effort is varied. | Squirrel monkeys controlled the air temperature within their test chamber by pulling a chain to select between two preset air temperatures, 10 and 50 degrees C. When the force required to pull the chain was increased in steps from 2.94 to 6.86 N, interresponse interval increased, resulting in wider air temperature swin... | 814,149 | [
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0.04682109,
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[Epitheliomas of the cervis uteri: exclusive radio-curietherapy in 431 cases (32 of them residual cervices) treated between 1959 and 1969]. | The author gives the results of treatment exclusively using physical agents (tele-cobalt therapy, radium therapy) in a series of 431 cases of epitheliomata of the cervix between 1959 and 1969. The analysis is of 399 patients and 32 carcinomata of the cervical stump (9 cases that were lost to follow-up and 12 who died o... | 814,156 | [
0.04966355,
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0.5640304,
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Embryonic development of tetraploid mice during the second half of gestation. | A small proportion (about 17%) of experimentally produced tetraploid blastocysts are capable of postimplantation development in the randomly bred Q strain of mice. Four newborn mice, three of which were confirmed as tetraploid, were produced but all were eaten by their mother within a few hours of birth. Studies on the... | 814,193 | [
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Cadaveric kidneys for transplantation: is there a need for more? | The paper questions the need for more cadaveric kidneys for transplantation. After establishing such need, it points out the inability of current supply to meet demand. Theoretically, enough kidneys should be available to meet all demand, so the various reasons for discrepancies between theoretical supply and the lesse... | 814,198 | [
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0.3473333,
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... |
Studies to improve fixation of human nerves. Part 3. Effect of osmolality of glutaraldhyde solutions on relationship of axonal area to number of myelin lamellae. | When rat peroneal nerves were fixed under 5 different fixation schedules with various osmolalities (310, 410 and 900 milliosmoles), the frequency of abnormality of mitochondria in the axoplasm was lowest in myelinated fibers fixed with 6% glutaraldehyde in 0.1 M cacodylate buffer (900 milliosmoles). The relationship of... | 814,207 | [
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0.2209327,
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0.1266684,
0.1602281,
... |
Ultrastructural features of the verruciform xanthoma. | The verruciform xanthoma, a rare lesion of the oral cavity, was studied by light and electron microscopy. The major cell type associated with the lesion was shown to contain appreciable amounts of lipid and was characterized as a macrophage. It was characteristic of the endothelial cells associated with subepithelial c... | 814,219 | [
-0.04939258,
0.1067464,
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0.06304403,
0.04344464,
0.01353113,
0.1203348,
0.3830389,
0.162168... |
Liver dysfunction following small-bowel bypass for obesity. Nonoperative treatment of fatty metamorphosis with parenteral hyperalimentation. | A patient with liver dysfunction following small-bowel bypass for obesity was treated successfully with intravenous hyperalimentation. The hepatic steatosis and dysfunction were most likely caused by the preferential absorption of carbohydrate in the remaining small bowel, with resulting relative protein starvation. Ro... | 814,254 | [
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0.2295009,
0.004784341,
... |
A molecular analysis of transductional marker rescue involving P-group plasmids in Pseudomonas aeruginosa. | The molecular properties of the P-group plasmids R26, R527 and R18-18- (a carbenicillin-sensitive derivative of R18) have been compared with those of RP1. R18-18 and RPI have a MW about 38 X 10(6) daltons, and R26 and R527 of 52 X 10(6) daltons (determined from contour lengths). All three plasmids have a bouyant densit... | 814,405 | [
0.1174005,
0.06791259,
0.07528773,
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0.0006060381,
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0.08022675,
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... |
[Mechanical and functional complications in endemic struma (author's transl)]. | Of 1294 patients examined with struma of magnitude I to III, complications in the form of mechanical effects on the neighboring organs, disturbances of thyroid function and pathological anatomical changes in the struma were demonstrated in 1051 cases. The appearance of high-seated esophageal varices is described in 33 ... | 814,419 | [
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0.2176508,
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0.4967448,
0.2236674,
-0.226398... |
[Double pylorus (author's transl)]. | Two cases of double pylorus are reported which had been diagnosed gastroscopically. In 1 case, the ulcerative origin could be demonstrated by autopsy and histological examination. | 814,433 | [
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0.09520948,
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0.1836394,
0.3051856,
0.08919642,
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0.3... |
[Renal osteopathy and bone mineralisation in patients treated with dihydrotachysterol during long term dialysis (author's transl)]. | 21 hypocalcemic patients on regular hemodialysis were treated for 2 months with 0.2 mg and for a further 2 months with 0.46 mg dihydrotachysterol daily. 8 normocalcemic patients served as a control group. Radiological and radiodensitometric investigations were undertaken in all patients at regular intervals. Slight sig... | 814,443 | [
0.001907051,
0.2400987,
0.1634566,
0.1132523,
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0.3244208,
0.3449053,
0.06824555,
0.2615055,
0.3228303,
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... |
On nature of Y chromosome fragments induced in Drosophila melanogaster females. III. C(1)RA vs C(1)RM females. | The distribution of breakpoints in the Y chromosome has been determined for samples of Y chromosome fragments recovered from irradiated immature and mature oocytes of females carrying a reversed acrocentric compound X chromosome. Both distributions differ from the distributions determined from Y chromosome fragments re... | 814,450 | [
0.1761847,
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0.3942638,
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0.3944588,
0.2089071,
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Counteracting effect of eosin and related dyestuffs on the production of respiration-deficient mutants in yeast by 4-nitroquinoline 1-oxide. | Production of respiration-deficient (rho-) mutants under growing conditions in a strain of Saccharomyces chevalieri by 4-nitroquinoline 1-oxide (4NQO), a potent carcinogen, reached 100%. The mutation frequency was considerably reduced when eosin Y was applied in various combinations with 4NQO. The counteracting effect ... | 814,454 | [
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0.1314469,
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0.1201862,
0.0818676,
0.1984211,
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-0.02... |
[Hematologic intensive care units for cancer patients. Their role in the efficacy of cytostatic chemotherapy]. | Intensive care units for hematology or oncology patients consist of rooms free from pathogenic germs and low in microbe content. The units are staffed by doctors and nurses checked to be non carriers of pathogenic germs, and platelet and granulocyte transfusions are available. The first of these rooms, the Unit Fred-Si... | 814,533 | [
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0.09157911,
0.2890582,
0.2812133,
0.3798078,
0.03480298,
0.02455435,
... |
Properties of a partially-purified preparation of the prostaglandin-forming oxygenase from sheep vesicular gland. | The fatty acid oxygenase of sheep vesicular glands was solubilized with Tween-40 and purified 60-fold using ammonium sulfate precipitation and Deae-cellulose chromatography. Glycerol (50%) stabilized the activity at all stages of purification and allowed long-term storage at -60 degrees. The partially purified enzyme c... | 814,584 | [
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0.4244033,
0.2076078,
0.3622747,
-0.4864479... |
Prostaglandin E1 specific binding in rhesus myometrium. | Myometrial low speed supernatant prepared from non-pregnant rhesus uteri was incubated with 3H-Prostaglandin (PG)E1 with or without addition of unlabelled prostaglandins. The uptake of 3H-PGE1 was inhibited in a dose dependent fashion by PGE2greater thanPGE1greater thanPGA1greater thanpgf2alpha=PGA1greater thanPGB1=PGB... | 814,585 | [
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0.2438216,
0.05743686,
0.4416743,
0.2973112,
0.5537431,
-0.07696475,
0... |
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