title stringlengths 0 901 | abstract stringlengths 3 9.89k | PMID int64 22 25.3M | embedding listlengths 768 768 |
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The effects of commercial local anaesthetic solutions on the isolated rabbit ear artery. | The response of an isolated artery preparation to commercial local anaesthetic solutions containing either prilocaine or lignocaine in the presence of adrenaline or noradrenaline has been examined. In low doses, both local anaesthetics were found to augment the constrictor response to adrenaline, wheras at higher doses... | 277,147 | [
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Hypoxic cell sensitizers and heavy charged-particle radiations. | Stationary-phase populations of Chinese hamster V-79 cells were irradiated with 250 kV X-rays and the Bragg peaks (spread to a width of 4 cm) of energetic He-, C-, Ne-, and A-ion beams produced at the 184-inch cyclotron and BEVALAC at Lawrence Berkeley Laboratory. Survival curves were generated with each radiation for ... | 277,223 | [
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The effect of misonidazole on the radiation response of clonogenic human pancreatic carcinoma cells. | An enhancing effect of misonidazole on the in vivo radiation response of clonogenic human tumour cells from a pancreatic carcinoma xenograft has been demonstrated using both a soft agar in vitro assay and an agar in diffusion chamber assay. Enhancement ratios of 1.8 and 1.3 were found when cells were assayed at 0 h and... | 277,233 | [
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The demonstration of in vivo misonidazole tumour toxicity using post radiation hypoxia. | The cytotoxic effect of the radiosensitizer misonidazole on hypoxic tumour cells in vivo has been studied. Using standard procedures of large single doses of X-ray (30 Gy) followed by 1.0 mg/g misonidazole, no significant cytotoxicity (measured by tumour regrowth) could be observed. In contrast, when utilizing post rad... | 277,234 | [
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The effect of misonidazole in combination with radiation dose fractionation. | Single doses or multiple fractions of 2, 3, 5 or 10 Gy were given daily to KHT Sarcomas, growing in C3H mice, in combination with a misonidazole dose of 0.5 mg/g body weight administered 30--40 min before each radiation dose. Cell survival assays were performed on groups of tumours after different total doses to determ... | 277,242 | [
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Sister chromatid exchange in Philadelphia chromosome (Ph1)-positive leukemia. | The sister chromatid exchange (SCE) frequency was studied in the leukemic cells of 12 patients, 10 with Philadelphia chromosome (Ph1)-positive chronic myelocytic leukemia (CML), 1 with Ph1-negative CML, and 1 with acute myeloblastic leukemia. Except for two patients in the blastic phase of CML, the SCE values were with... | 277,286 | [
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Site of action of methyldopa in lowering the blood pressure in man. | 1. Methyldopa was administered to hypertensive patients in association with two different inhibitors of dopa decarboxylase, one of which, carbidopa, scarcely penetrates the central nervous system while the other, benserazide, penetrates the central nervous system when given in high doses. 2. The evidence suggests that ... | 277,299 | [
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Light and lighting in the dental office. | For any task, the eye can respond effectively if there is enough light, if that light is properly distributed, if the appropriate color correction is provided, and if visual contrasts are balanced. Dental offices differ in the types of work performed, the number of people engaged in various tasks, and the types of pati... | 277,419 | [
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Biological effects and radiation protection in the dental office. | In conclusion, it is important to point out that dentistry's contribution to the United States population's radiation exposure is small. Significant improvements have been made, but since dentistry is only one of the contributors to the population's total exposure to radiation, it is important that we make every effort... | 277,422 | [
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High terminal deoxynucleotidyl transferase activity in pediatric patients with acute lymphocytic and acute myelocytic leukemias. | Specificity of TdT5 as a marker for ALL was evaluated by determining its activity in cells from normal control subjects and from 35 pediatric patients with ALL, AML, Hodgkin's disease and disseminated Burkitt's lymphoma. We evaluated the DNA polymerase activity, cell surface phenotypes (E rosettes, EAC rosettes, Smlg a... | 277,433 | [
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Differential denaturation of a crystalline Bence-Jones type cryoprotein as monitored by fluorescence. | 1) A Bence-Jones type protein (Cryo-Ver) showing the cold precipitation phenomenon has an extremely low intrinsic fluorescence when excited at 280-295 nm. 2) This fluorescence increases considerably upon denaturation of the molecule by heat or guanidine hydrochloride. Guanidine is about twice as effective as heat in te... | 277,439 | [
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A study of oxidation of dental amalgams with age. | A quantitative test for corrosion due to oxidation has been accomplished. The oxygen concentration of dental amalgams was measured by fast neutron activation which provides a means of detecting oxygen in as small a quantity as 10 to 20 micrograms. An increase in oxygen content with age of spherical blend amalgam implan... | 277,468 | [
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Changes in consistency of occlusal contact in myofascial pain-dysfunction (MPD) syndrome. | The sound patterns produced by tooth contact were recorded in 24 subjects with myofascial pain-dysfunction (MPD) syndrome prior to and following treatment using an Occlusograph. Recordings also were obtained on 12 control subjects. Evaluation of the sound patterns showed a close correlation between the improvement in s... | 277,493 | [
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Regulation of the secretory process of granular components from the convoluted tubular cells of the mouse submandibular gland. | Autonomic regulation of the secretion of granule components in the convoluted tubular cells of male mouse submandibular glands was investigated with the use of an agar gel diffusion test using an antisera for male specific components. Whereas the injection of neither a parasympathomimetic agent (pilocarpine) nor a beta... | 277,506 | [
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Fluorine and tin uptake by enamel studied by x-ray photoelectron spectroscopy (ESCA). | ESCA has been combined with argon-ion etching to obtain depth profiles for SnF2-treated enamel. Three zones of products from the topical treatment are detected: a layer of tin oxide on the surface; fluoroapatite + hydroxyapatite at depths below about 0.2 micron; an intermediate layer CaF2, Sn(OH)2, Sn2PO4OH, and fluoro... | 277,526 | [
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The effect of some divalent cations on extracellular polysaccharide synthesis in Streptococcus salivarius. | The amount of extracellular insoluble polysaccharide produced by Streptococcus salivarius can be effected by some divalent cations. Calcium at concentrations of 1 X 10(-3) and 10(-4) M caused a reduction in polysaccharide synthesis. Magnesium at 1 X 10(-3) M inhibited extracellular polysaccharide production but at 1 X ... | 277,538 | [
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Enamel dissolution by various food acidulants in a sorbitol candy. | The carboxylic acids used as food acidulants were evaluated for their effect on enamel dissolution in vitro. In water, the potential of the food acids to demineralize enamel was directly proportional to their acidity. However, in a sorbitol candy, the amount of enamel dissolution was correlated with the potential of th... | 277,546 | [
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Aldehyde methacrylates derived from hydroxybenzaldehydes. | Three crystalline aldehyde methacrylates with low melting points were synthesized from the readily available, isomeric hydroxybenzaldehydes and 2-bromoethyl methacrylate. These monomers can be purified by recrystallization and liquified by admixture in various proportions to obtain polymerizable liquids having workable... | 277,556 | [
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Effectiveness of preventive dentistry delivery system. | A preventive dentistry delivery system was developed for maximum effectiveness in private practice. Four new pit or fissure carious lesions developed in 20 patients who were 10 to 20 years old at the start of a two-year exploratory test; there were no new lesions of smooth surfaces. Of the incipient lesions that were u... | 277,572 | [
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Posttraumatic thrombotic occlusion of the internal carotid artery: report of two cases. | Two cases of posttraumatic thrombosis of the internal carotid artery are reported. Etiological theories are discussed and the relevance of the disorder in the assessment of facial injuries is emphasized. | 277,640 | [
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Conditioning prostheses viewed from the standpoint of speech adaptation. | Subjects who had adapted to experimental alveolar-palatal prostheses for 2 weeks were able to speak naturally with them after a lapse of a month. Physiologic data on jaw motions and tongue-palate contacts during speech showed a rapid return to compensatory articulatory patterns. A single subject who had previously adap... | 277,686 | [
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Carcinoma of the urachus: report of four cases and review of the literature. | Four cases of urachal carcinoma are presented. The features of this uncommon disease are outlined and the literature is reviewed briefly. | 277,799 | [
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Lingual thyroid. Review of the literature and report of a case. | A case of lingual thyroid nodule was presented which demonstrates the need for oral surgeons to be aware of this entity in order to avoid the indiscriminate excision of lesions of the posterior dorsal surface of the tongue without proper medical examination of all systems of the body. | 277,847 | [
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Postinjury myofascial pain dysfunction syndrome: its etiology and prognosis. | Clinical data are producted which appear to show that the response to therapy of myofascial pain dysfunction syndrome (MPDS) is much less favorable when the patient has been involved in a road traffic or similar accident which precipiated the condition. Reasons for this difference and the differences between postinjury... | 277,848 | [
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Alveolar bone loss associated with vertical root fractures. Report of six cases. | Six cases of vertical root fractures accompanied by vertical bone loss are presented. Possible causes for these fractures are suggested. Four vertical fractures probably resulted from the use of excessive pressure at the time of obturation of the canals. One vertical root fracture may have been caused by the cementatio... | 277,857 | [
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Dental x-ray spectrometry with an Si(Li) semiconductor. | Spectra from a dental x-ray apparatus with varying tube potentials and various added filters were measured with the use of an Si(Li) semiconductor. The mean energies of the spectra were calculated to estimate radiation qualities under various conditions. A phantom lip made of Arcylite was used to compare the attenuated... | 277,861 | [
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Focal epithelial hyperplasia in Israeli families of Libyan origin. | The occurrence of focal epithelial hyperplasia (Heck's disease) in seven Israeli families is reported. All the cases involved children and young adults whose parents had immigrated to Israel from Libya. The familial occurrence and possible etiologic factors of the condition are discussed. A genetic predisposition for t... | 277,883 | [
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Perineural invasion by squamous-cell carcinoma of the lower lip. Review of the literature and report of a case. | Although perineural metastases have been studied extensively for various regions of the body, there is a relative paucity of data on cancers of the head and neck region. A case of perineural metastasis from a squamous-cell carcinoma of the lower lip is presented, with symptoms mimicking other neurologic diseases. | 277,886 | [
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On the mechanism of an increase of muscle performance and of vasodilation during emotional stress in man. | The mechanism of the increase of muscle performance and of vasodilation during emotional stress was studied. The "emotional" increment of voluntary performance does not depend on the level of blood supply to the working muscles, and the effect is maintained under conditions of cessation of arterial inflow. Augmentation... | 277,891 | [
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0.1459577... |
Late S phase cells (Chinese hamster ovary) induce early S phase DNA labeling patterns in G1 phase nuclei. | Cells (Chinese hamster ovary) in G1 phase were fused with cells in late S phase to determine if a cell in late S phase can induce DNA synthesis in the nucleus of a G1 cell and, if so, to determine if the DNA synthesis so induced in a G1 phase nucleus has an autoradiographic pattern characteristic of early or of late S ... | 277,928 | [
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Anti-interferon globulin inhibits the development of glomerulonephritis in mice infected at birth with lymphocytic choriomeningitis virus. | Swiss mice infected at birth with lymphocytic choriomeningitis virus develop glomerulonephritis. Injection of potent anti-mouse interferon globulin at the time of viral infection inhibited the development of these renal lesions. We conclude that the production of endogenous interferon by this virus in the first few day... | 277,942 | [
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... |
Responses to light of solitary rod photoreceptors isolated from tiger salamander retina. | Single, isolated rod photoreceptors were obtained by enzymatic dissociation of the tiger salamander (Ambystoma tigrinum) retina. These solitary cells retained the morphological features of rods of the intact retina and could be maintained in culture for several days. When impaled with micropipettes for electrophysiolog... | 277,954 | [
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The incidence of carcinoma in the gastric remnant after resection for benign ulcer disease. | During the period 1950-1953, gastric resection was performed on 569 patients for benign ulcer disease at the Serafimer Hospital, Stockholm, Sweden. The purpose of this investigation uas to assess the incidence of cancer and precancerous lesions in the gastric remnant. There were 15 postoperative deaths. 223 patients wh... | 278,421 | [
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Phagocyte function in various situations in surgery. | A brief presentation is given of granulocyte physiology, as well as some techniques in use for assessing the adherance, the migration, the uptake and bacterial killing and finally the metabolic activity of these cells. Also the activities of the reticuloendothelial system and an in vivo method to measure the phagocytic... | 278,440 | [
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0.03... |
The cellular infiltrate and its measurement in contact dermatitis. | It is well known that in the fully developed allergic contac reaction a marked cellular infiltrate takes place in the upper corium and epidermis. In the first part of this paper a short survey is given about the different cells taking part in the infiltrate and the efforts to differentiate both mononuclear and polymorp... | 278,446 | [
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Transcutaneous oxygen tension measurement I. Age variation and reproducibility. | In 20 patients, aged 19-80 y and without pulmonary or cardiovascular disease, transcutaneous oxygen tension (tcPO2) and arterial oxygen tension (PaO2) were measured. tcPO2 was measured with a Radiometer TCM-1 (transcutaneous oxygen monitor) at 43 C degrees. The age regression for tcPO2 was: tcPO2 = 10.4-0.035 x age (r ... | 278,457 | [
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0.1082477,
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Erythroid hypoplasia. An unusual presentation of childhood acute lymphocytic leukemia. | A 3-year-old girl had pancytopenia and bone marrow erythroid hypoplasia. The pancytopenia resolved without therapy, but the erythroid hypoplasia persisted for four months in spite of a five-week course of corticosteroid therapy. She responded briefly when androgens were added to the corticosteroid regimen, but within t... | 278,478 | [
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0.102824... |
A review of the significance of gestational diabetes. | One hundred and ninety-six pregnancies complicated by gestational diabetes in a referred private practice over an 18-year period have been reviewed. Initially they were managed as true diabetics and the pregnancies terminated before the 38th week. More recently, pregnancies have been managed on an outpatient basis and ... | 278,583 | [
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The genesis and implementation of the Tasmanian obstetric survey. | The genesis and implementation of a continuing obstetric audit in Tasmania is described. The survey includes all public and private deliveries in Tasmania. Some of the early difficulties and their resolution are discussed. Because of its simplicity, the suggestion has been made that such a system would be suitable for ... | 278,586 | [
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New aspects of the treatment of tubal infertility. | Three aspects of the treatment of tubal infertility are discussed: current surgical procedures, including the use of microsurgery; an attempt at tubal transplantation; and the use of in vitro fertilization. | 278,591 | [
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Vaginal transposition of the ovary in primates (Papio cynocephalus and Macaca arctoides). | Experimental data indicate that the time and mechanism of ovulation play a significant role in some cases of infertility and in a broad range of reproductive abnormalities. In order to establish a new experimental model for the study of these phenomena in primates, transposition of the ovary from the pelvis into the va... | 278,593 | [
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Conversion reactions simulating Guillain-Barré paralysis following suspension of the swine flu vaccination program in the U.S.A. | The association of Guillain-Barré Syndrome as a possible complication of swine flu inoculation created the potential for conversion reactions simulating this syndrome. Upon termination of the swine flu vaccination program, a study was initiated in a prepaid health plan to identify and categorize such patients. An estim... | 278,603 | [
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Acute myelogenous leukemia in patients receiving chlorambucil as long-term adjuvant chemotherapy for stage II breast cancer. | Thirteen consecutive stage II breast cancer patients were treated with long-term adjuvant chemotherapy using chlorambucil. At least three of these patients developed acute myelogenous leukemia (AML). All three patients (and possibly a fourth) who developed AML were postmenopausal, received continuous chlorambucil for g... | 278,642 | [
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... |
Surface membrane determinants on childhood acute lymphocytic leukemia cells: immunoglobulin, Fc and C3 receptors. | Most reports have now described two populations of childhood ALL patients: those with thymic (T) cell receptors and those lacking receptors on their neoplastic cells. Assays for the surface receptors of the T and thymic-independent (B) system were used to study forty-seven patients with ALL whose bone marrow contained ... | 278,686 | [
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... |
Age-standardized incidence rates of ameloblastoma and dentigerous cyst on the Witwatersrand, South Africa. | Although a great deal is known about the incidence of cancer, including oral cancer, no such study has been done on odontogenic tumors and jaw cysts. There are therefore no standardized data which would allow for comparative incidences in different countries and between different groups. In the present study, cases of ... | 278,703 | [
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0... |
Inpatient audit simplified. | One hospital's audit program identifies the necessary procedures for selecting criteria, performing audits, and conducting follow-up and shows how they can be accomplished most effectively and efficiently. In addition, it shows that a useful emergency department/outpatient audit can be conducted using data from telepho... | 278,770 | [
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0.00630841... |
Relationship between abrasive wear and microstructure of composite resins. | The in vitro abrasion resistance of seven commercial composite resin restorative materials has been measured. Analysis of the composite microstructures shows that abrasion rates are dependent upon the size, hardness, and volume fraction of particles in the material. The most abrasion-resistant composites contain a high... | 278,840 | [
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Special features of intestinal metaplasia and its relation to early gastric carcinoma in man: observation by a method in which leucine aminopeptidase activity is used. | The degree of intestinal metaplasia and its macroscopic distribution in gastric mucosa were examined by a new method in which leucine aminopeptidase (LAP) activity is used to investigate the relationship between intestinal metaplasia and gastric carcinoma. Since LAP is a specific enzyme of intestinal metaplasia, the ar... | 278,846 | [
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Biochemical and ultrastructural studies on estrogen-induced pituitary tumors in F344 rats. | The hormone function, the metabolism of nucleic acids, and the ultrastructure of estrogen-induced pituitary tumors and of normal glands were examined in male F344 rats. The tumors had a high capacity for prolactin (PRL) synthesis, and the plasma levels of PRL were elevated 65-fold to 100-fold in the tumor-bearing anima... | 278,852 | [
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0.09998941,
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Survival in uremia due to systemic diseases. | A retrospective analysis of the mortality and morbidity experience with maintenance hemodialysis as treatment for uremia in systemic disease was conducted. Between 1962 and 1977, a total of 141 patients with chronic glomerulonephritis and 120 patients with uremia caused by renal involvement in systemic disease were tre... | 278,899 | [
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... |
Desmoplastic fibroma (fibromatosis) of the jawbones. Report of a case and review of the literature. | Desmoplastic fibroma (fibromatosis) is rarely seen as a primary tumor of bone. Its occurrence as a central lesion in the jaws is even more uncommon. The case of a 26-year-old woman with a central desmoplastic fibroma of the body of the mandible is described. The lesion manifested as a painless swelling and radiographic... | 278,936 | [
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Requirement of S-adenosyl-L-methionine-mediated methylation for human monocyte chemotaxis. | The chemotactic response of motile bacteria requires the methylation of specific proteins by S-adenosyl-L-methionine. To determine whether methylation is required for the chemotaxis of human leukocytes, we studied the effects of inhibition of S-adenosyl-L-methionine-mediated methylation on monocyte chemotactic responsi... | 279,007 | [
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0.1758399,
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Initiation of the alternative pathway of complement: recognition of activators by bound C3b and assembly of the entire pathway from six isolated proteins. | An intact alternative pathway of complement activation was assembled from six isolated proteins present at their respective physiological concentrations (C3, 1200 microgram/ml: factor B, 200 microgram/ml; factor D, 2 microgram/ml; beta1H, 560 microgram/ml; C3b inactivator, 34 microgram/ml; and native properdin, 20 micr... | 279,011 | [
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0.01800417,
... |
X-ray sensitivity of diploid fibroblasts from patients with hereditary or sporadic retinoblastoma. | Fibroblasts derived from patients with hereditary retinoblastoma appear to be more sensitive to the lethal effects of x-rays than do fibroblasts from patients with sporadic retinoblastoma or normal controls. A defect in DNA repair is postulated to account for the high incidence of second tumors in these patients. Retin... | 279,012 | [
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0.5229934,
0.250551,
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-... |
Release of neurotransmitters and depletion of synaptic vesicles in cerebral cortex slices by alpha-latrotoxin from black widow spider venom. | The effect of alpha-latrotoxin on cerebral cortex slices was studied by both biochemical and morphological methods. This toxin greatly stimulates the release of preloaded gamma-amino[3H]butyric acid from cortex slices. The response increases linearly with dose. The release is not dependent on the presence of extracellu... | 279,018 | [
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0.4485718,
0.4300449,
0.1631219,
0.218... |
[Experiences with sole radiation therapy of primary osteogenic sarcomas (author's transl)]. | In the course of the previous six years, nine osteogenic and three juxtacortical sarcomas have been irradiated for the single purpose of local tumor sanitation and final cure of the patient. Of nine cases with osteosarcomas, six are still alive. Two are surviving without recurrences these five years, three without meta... | 279,130 | [
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-0.06141064,
0.385016,
0.4927238,
0.1309802,
-0.0061... |
[Combined study of leukemic blasts using DNA autoradiography and cytophotometry]. | The 3H-thymidine incorporation capacity and DNA contents were studied in the same bone marrow blasts in 4 patients suffering from acute leucaemia. The blast populations were both proliferating and non-proliferating. Actively proliferating cells were blasts of large and medium diameters. Mitotically inactive cells were ... | 279,148 | [
-0.0767884,
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0.08070713,
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0.4998333,
0.8406901,
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... |
Transcutaneous oxygen tension in imminent foot gangrene. | Transcutaneous oxygen tension at 44 degree C and maximal isotope clearance (90m Tc-pretechnetate + histramine) just proximal to the 1st toe and systolic toe blood pressure (strain gauge) were studied on a tilt table in patients with various degrees of obstructive arteriosclerotic disease. In legs with moderate obstruct... | 279,191 | [
-0.3457732,
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0.3360664,
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0.09220728,
0.01609... |
[Long-term survival in childhood acute lymphocitic leukemia (author's transl)]. | Long-term results in the treatment of 116 patients of acute lymphocitic leukemia with ages between six months and seven years are reported. A first group A, formed by 76 patients, was treated with prednisone and vincristine as induction protocol and maintenance therapy with 6-mercaptopurine or methotrexate. No neuromen... | 279,235 | [
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0.4151969,
0.3738764,
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... |
Iron nutrition. | This paper is a progress report on our present understanding of iron nutrition in man, particularly in developing countries. We will be concerned with the quantitative aspects of iron balance and in particular with the availability of dietary iron, the recognition of iron deficiency and its prevalence, the effects of i... | 279,270 | [
-0.3175354,
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0.3612403,
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Testicular damage due to cytotoxic drugs and recovery after cessation of therapy. | Testicular function was assessed in 32 patients who received standard chemotherapy regimens for disseminated lymphomas. Thirty-one had evidence of germ cell damage, as assessed by the finding of azoospermia and/or high plasma levels of follicle-stimulating hormone (FSH). In addition, five patients had persistently low ... | 279,319 | [
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-... |
A quantitative review of the performance of implanted cardiac pacemakers, Medtronic Model No. 5944. | One of the service functions of the Sir Charles Gairdner Hospital Department of Biophysics since 1972 has been the routine performance testing of pacemakers implanted by the Hospital's Cardiologists. This service was set up to measure pacemaker pulse parameters with a view to detecting battery depletion. It was also fo... | 279,320 | [
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0.04736... |
A variant chromosomal translocation found in a series of 24 patients with Philadelphia positive chronic granulocytic leukaemia. | The bone marrow chromosomes of 24 patients with Philadelphia positive (Ph 1) chronic granulocytic leukaemia (CGL) were studied using banding techniques. In 23 patients, the Ph(1) had been produced by the standard translocation between chromosomes 9 and 22, but in the remaining patient, the Ph(1) chromosome had been for... | 279,326 | [
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0.1637288,
0.2309684,
0.07958826,
0.0829169,
0.... |
Delayed hypersensitivity skin reactions in the induction phase of remission in acute non lymphoid leukemias. | Delayed skin reactions to Tuberculin (10 units, intradermal) and Candidin (1:1000, intra dermal) were studies in a homogenous group of 41 patients with acute non lymphoid leukemias in their initial phase. Remission-rate is higher in non-anergic patients (63%) than in anergic patients (32%), (p less than 0.05). Death-ra... | 279,357 | [
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0.4961862,
0.1402453,
0.03127888,
-... |
Resistant level of houseflies to seven kinds of synthetic insecticides and effect of synergists to the Malathion resistant strain in Singapore. | The resistant level of the houseflies to the seven kinds of insecticides, Malathion, Sumithion, Baytex, Diazinon, DDVP, DDT and Chrysron, was examined on the 3 strains collected in Singapore. It was found that most housefly colonies in Singapore showed a higher susceptibility to those insecticides than that of the Taka... | 279,412 | [
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0.1480149,
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0.2844197,
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... |
Relevance of circulating immune complexes in childhood acute lymphoblastic leukaemia. | Circulating immune complexes have been measured using the (125I)C1q binding test in 216 sera from 135 children with acute lymphoblastic leukaemia. Increased circulating immune complexes were detectable in 10.7% of the sera and 10.4% of the children. There was no correlation between the presence of circulating immune co... | 279,522 | [
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0.463543,
0.03358736,
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0.08440... |
[Gas chromatography analysis of volatile monocarboxylic aliphatic acids (C2 to C6) of 15 strains of Veillonella of oral origin]. | A qualitative and quantitative study has been carried out on 15 strains of the Veillonella genus, isolated in the oral cavity. Following two methods of preparation of samples for injection in a chromatograph GL, we have identified among the volatil monocarboxylic aliphatic acids from C2 to C6 the glucose fermentation p... | 279,541 | [
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0.3826868,
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0.140130... |
Premature loss of primary teeth: part I, its overall effect on occlusion and space in the permanent dentition. | Premature loss of primary molars causes, without doubt, permanent changes in regard to space and sagittal molar relations, in the permanent dentition. The changes are due to drifting of teeth and lack of growth, and such changes should, whenever possible, be prevented. In part two of this series of papers, a further an... | 279,554 | [
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0.1209614,
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Semiconductor probe measurements in beagle pups during deciduous tooth development. | Bone-seeking radiopharmaceuticals were used together with clinical and radiographic procedures to study tooth development in dogs. Similarities in the pattern and time course of radiopharmaceutical uptake in jaw areas studied suggest that changes in alveolar bone metabolism are not closely related to eruption times of ... | 279,594 | [
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0.2838256,
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0.01... |
Histologic evaluation of electrosurgery with varying frequency and waveform. | This investigation was designed to determine the differences in tissue alteration produced by electrosurgical machines with different carrier frequencies and waveforms. Histologic analysis showed that: 1. The machine with full-wave rectification and the lowest frequency of operation (machine I, 1.7 MHz) produced signif... | 279,674 | [
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0.209967,
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A self-administered questionnaire--an aid in managing complete denture patients. | A written self-administered questionnaire aids in treating edentulous patients and greatly reduces the possibility of patient dissatisfaction and medicolegal complications. Twenty-two questions have been presented which are to be answered in writing by the edentulous patient prior to the interview and examination. Such... | 279,683 | [
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0.1884767,
0.0735884... |
Cell-mediated responses in dogs with spontaneous neoplasms. I. Detection of cell-mediated cytotoxicity by the chromium-51 release assay. | A series of 43 dogs with spontaneous melanomas, sarcomas, or mammary carcinomas were tested for peripheral blood lymphocytotoxicity against a range of allogeneic tumor cells in vitro on one or more occasions during therapy. All tumor-bearer groups contained a proportion of dogs showing a significant 51Cr release with i... | 279,712 | [
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... |
The significance of leukemic cell volume distribution. | The use of electronic pulse spectroscopy to determine the volume distribution of a white blood cell fraction isolated by sedimentation from anticoagulated whole blood permits a rapid quantitative measure of size and dispersion of white blood cells in suspension. In patients without apparent hematologic diseases the whi... | 279,891 | [
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... |
Chemical determination of polypeptide hormones. | The presence or absence of peptide hormones in tissue extracts may in certain cases be demonstrated by exposing the extracts to conditions under which characteristic fragments of the polypeptide molecule in question are formed and then analyzing for such fragments. An approximate quantitation of the hormones may also b... | 279,902 | [
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Spatiotemporal pattern formation in thin layers and membranes: critical focal size. | A theory for the determination of the focal nucleation size of oscillatory membrane (or thin layer) reactions is developed on the assumption that the focal domain is square planar. From this, one can estimate that, for a period of the oscillatory mode of, say, 5 min and lateral diffusion coefficient of approximately 10... | 279,915 | [
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0.01250636,
... |
Units of transcription for cytoplasmic RNA in mouse myeloma cells. | The size of transcription units for several of the abundant cytoplasmic mRNA species in mouse myeloma cells has been analyzed by the ultraviolet light mapping technique. Inactivation kinetics and target size analyses for production of the predominant RNA species indicate that the mRNAs originate in precursor molecules ... | 279,922 | [
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Morphologic changes in the rat enamel organ following a single intraperitoneal injection of sodium fluoride. | Enamel organs in developing teeth of young rats were studied after single intraperitoneal injections of a high dose of sodium fluoride (60 mg NaF/kg body wt.). The study employed primarily light microscopy, but electron microscopy was used to clarify some of the light microscopic findings. The pathogenesis of the fluor... | 279,953 | [
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An in vitro study with various vehicles of diffusion of formocresol and its components. | Pulpotomy in primary teeth using the formocresol method results in varying degrees of devitalization of the root pulp. The extent of this devitalization depends on, among other things, the ability of the components of formocresol to leave the dressing. The purpose of this study was to evaluate the rate and duration of ... | 279,957 | [
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0.435898,
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0.02710139,
0.0167796,
... |
Pulp condition of successfully formocresol-treated primary molars. | The aim of the study was to assess the state of the pulp of primary teeth successfully treated by formocresol pulpotomy. Nineteen teeth, all of them with clinically and radiographically successful treatments, were extracted 3-24 months after treatment. The pulpal condition had changed in all the teeth. Inflammatory rea... | 279,958 | [
0.04277102,
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0.4945982,
0.2066443,
0.353763,
-0.1669632,
... |
The tissue cage model in the distribution of antibacterial agents. | Developments in the measurement of interstitial tissue fluid using the tissue cage model are described. The design and physical characteristics of tissue cages are examined and evidence is presented to show that the fluid contained within these cages is representative of interstitial tissue fluid. The distribution of a... | 279,964 | [
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0.0303193,
0.05312147,
... |
Transfer of penicillin G and ampicillin into human skin blisters induced by suction. | The antibiotic concentrations in untreated and endotoxin-treated suction blisters was studied in 15 healthy adults. In a pilot study, 2 mega units of penicillin G were given as an intravenous bolus injection to two subjects. For further studies, a single dose of 800 mg bacampicillin was given orally to 13 individuals. ... | 279,977 | [
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-0.1290395,
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-0.04749454,
0.4581092,
0.2066278,
0.35... |
Equilibrium theory revisited: factors influencing position of the teeth. | The major primary factors in the dental equilibrium appear to be resting pressures of tongue and lips, and forces created within the periodontal membrane, analogous to the forces of eruption. Forces from occlusion probably also play a role in the vertical position of teeth by affecting eruption. Respiratory needs influ... | 280,125 | [
-0.2165071,
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0.08412464,
-0.124779... |
De novo cell-free synthesis of human interferon. | Biologically active human interferon was synthesized de novo in a cell-free mouse extract stimulated with messenger RNA from induced human fibroblasts. The identity of the antiviral activity as human interferon was demonstrated by its antigenic and species specificity. Some characteristics of the cell-free synthesis we... | 280,158 | [
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... |
Characteristics of the Papua New Guinean dentition. II. Normal occlusion in an adolescent population. | Data on dental arch form and size, tooth arrangement and occlusion are presented for 32 adolescents from Wewak, Papua New Guinea, and compared with measurements of similar adult populations. Each person examined had a Class I occlusal relationship. | 280,309 | [
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-0.130525,
0.3... |
Interferon production in leukaemia. | Leucocyte interferon production in vitro and circulating interferon levels were studied in healthy subjects and in 80 patients with acute or chronic leukaemia. Circulating interferon was not found in either group. Interferon synthesis in response to a virus was normal in patients with acute leukaemia and appeared to be... | 280,360 | [
-0.1297518,
-0.1236177,
-0.3057993,
-0.1683328,
0.05845124,
-0.2656402,
-0.2703822,
0.3093343,
-0.1629794,
0.3180922,
0.0477231,
0.1660615,
-0.05302557,
0.156693,
-0.338315,
-0.2729754,
0.2912619,
0.04650363,
-0.1201003,
0.4800845,
0.2037766,
-0.0899471,
-0.1201325,
0.0... |
Acute leukemia in Malaysian children. | A review of acute childhood leukemia in the University Hospital, Kuala Lumpur reveals no significant differences in either the epidemiological or clinical features between Malaysian and Caucasian children. BCG does not appear to have conferred any protection against the occurrence of leukemia. With the introduction of ... | 280,417 | [
0.1319753,
-0.004699179,
-0.006921272,
-0.3101376,
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0.2501657,
0.03117893,
0.5172423,
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0.1899579,
0.3520279,
0.106643,
-0.003160956,
0.2677549,
-0.08126824,
-0.081583... |
Osteosarcoma: a review of 50 patients treated at the University of Alabama in Birmingham Medical Center between 1944 and 1975. | Only 12% of 50 patients lived 5 years or longer. Those who survived the longest were those with the tumor in the distal part of the lower extremity, with a well differentiated or chondroblastic tumor, or those who underwent radical surgery. Patients treated with surgery and chemotherapy lived about 1.5 months longer th... | 280,424 | [
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0.00276372,
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0.3670772,
0.1606551,
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0.1523519,
0.3397279,
0.06476031,
0.2219272,
0.3167391,
0.1604736,
0.08939055,
0.2... |
Prophylactic lung irradiation in the treatment of osteogenic sarcoma. | A minimum 52 month follow-up is recorded, in a series of 14 patients with classical osteogenic sarcoma treated by limb irradiation followed in the last 2 1/2 weeks of their therapy by prophylactic lung irradiation. Six of these 14 patients survived for more than 52 months. | 280,428 | [
-0.1512479,
0.01278473,
-0.1405158,
-0.3159849,
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0.1878137,
0.03671269,
0.01397622,
-0.01172045,
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-0.06062016,
0.04178219,
-0.05457579,
0.2909482,
0.311709,
0.1719412,
-0.026795... |
[Animal experimental studies on the biocompatibility of resorbable gelatin sponges and dry fibrin foam]. | Histologic specimens taken from the implantation site and the regional lymph nodes up to four weeks after subcutaneous implantation of Gelastypt S (Höchst AG), Gelfoam (Upjohn), and Fibrospum (Promonta) into the upper hind leg of guinea pigs were examined. Similar tissue reactions were observed with Gelastypt S and Gel... | 280,448 | [
0.04276031,
-0.1965411,
-0.1404439,
-0.02799183,
-0.07745722,
-0.4460354,
-0.2118948,
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0.1349407,
0.06818048,
-0.05041578,
-0.247219,
0.4741504,
-0.1890877,
-0.7502751,
-0.2130173,
0.2086306,
0.09284463,
-0.2455053,
0.5523091,
0.1524077,
0.2553321,
-0.3736147,
... |
Program planning for effective continuing dental education. | Continuing dental education can only be effective if it is efficiently planned and presented. It is essential to determine the needs as seen by the dentists and to ensure that these needs can best be met by educational means. The potential participants in the programme must then be identified and times and locations mo... | 280,539 | [
-0.1773642,
0.1794319,
-0.06656566,
0.06950498,
0.2318978,
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0.3615757,
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0.0233373,
0.2122279,
0.05373555,
0.1452926,
-0.109781,
-0.0002269718,
-0.6173788,
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-0.2366447,
0.1768899,
-0.4130626,
0.07540984,
0.2221387,
0.2668367,
0.2103232,
0... |
Dental education and early careers of Canadian dentists: changes in attitudes, aspirations, and behavior. | Longitudinal data on two cohorts of Canadian dental students are examined in order to determine the nature of the changes in attitudes and aspirations which students experience during their undergraduate dental training and the extent to which attitudes and aspirations which students hold on graduation are consistent w... | 280,585 | [
-0.1363462,
0.2162164,
-0.2614078,
0.1360818,
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0.1108566,
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0.3078723,
0.06570538,
0.05151795,
-0.1188817,
-0.5964223,
0.04873842,
-0.1803083,
-0.2394474,
0.05428743,
-0.03516356,
-0.08327414,
0.3274462,
0.1408913,
-0.0378978... |
Microhardness studies on the setting characteristics of fissure sealants. | The hardness of five fissure sealants was measured using a Wallace Microhardness Tester and found to continue to increase long after the initial setting. The effect of the intensity of radiation and exposure time on the setting of two u.v. activated sealants (Nuva-seal and Alphaseal) was also investigated, with higher ... | 280,632 | [
-0.06187888,
0.230653,
-0.0546789,
-0.08588892,
0.0940897,
-0.3366717,
-0.03176789,
0.0965143,
0.461104,
0.07448344,
0.01276009,
0.1158627,
0.05048894,
-0.126627,
-0.15647,
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-0.1217744,
0.3976409,
-0.6070684,
-0.02682658,
0.3618387,
0.1792263,
0.06771693,
0.0... |
The convergence angle in teeth prepared for artificial crowns. | The bucco-lingual and mesio-distal convergence angles in vital and rootfilled teeth prepared for complete crowns were measured microscopically on 190 stone dies. In vital teeth the mean convergence angles varied between approximately 19 and 27 degrees. In rootfilled teeth the mean angles varied between 12 and 37. | 280,638 | [
0.09292252,
0.5203276,
-0.2386537,
0.06760512,
-0.06687775,
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-0.1896116,
0.09953447,
0.1045619,
0.1185848,
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0.02089786,
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0.07615072,
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-0.1190016,
0.08495825,
-0.01063106,
-0.03085383,
0.3578268,
0.1537389,
0.174281... |
Fracture of the mandibular body and ramus during horizontal osteotomy for augmentation genioplasty. | A fracture of the body and ramus of the mandible occurred during a horizontal esteotomy for augmentation genioplasty. Care must be exercised when using osteotomes to free the posteroinferior border during this procedure. | 280,668 | [
-0.409475,
0.5182238,
-0.198494,
0.00332053,
-0.01296344,
-0.2862318,
-0.1478733,
-0.3033272,
-0.0978906,
0.04975362,
0.3727182,
-0.3201422,
-0.3160102,
-0.5468861,
-0.07879535,
0.06061146,
-0.5899481,
0.2148733,
0.1645575,
-0.6338466,
0.1294409,
-0.2404334,
0.1402398,
... |
Snack food consumption of 12 year old inner-city children and its relationship to oral health. | The relations between reported frequency of consumption of 18 common snack foods, SES variables, and oral health scores were studied in 92 12-year-old children from three inner-city schools in Rochester, New York. The group was composed of 44 males and 48 females who were either black or had a Spanish surname. The stud... | 280,681 | [
-0.3496827,
0.2801777,
0.09189384,
0.2988186,
-0.2187123,
-0.1004503,
-0.2235771,
0.276404,
0.3364561,
-0.1883465,
0.07614558,
0.3175095,
0.01077077,
0.02102151,
-0.3774236,
-0.4435821,
-0.1622881,
-0.2696961,
-0.2825915,
0.1976181,
-0.01346472,
0.2211592,
-0.2256712,
-... |
Cytologic correlates of chemical carcinogens in respiratory tracts of dogs. | During canine respiratory carcinogenesis studies with benzo[a]pyrene (BP) and N-methyl-N-nitrosourea (NMU), a stereotypic pattern of cytomorphology characteristic for each carcinogen was observed. In the early stage, BP induced changes primarily in the cytoplasm. These changes consisted of incresaed size, basophilia, a... | 280,708 | [
-0.209404,
0.06262475,
0.1708247,
-0.2162193,
-0.150049,
-0.3351279,
-0.02396771,
-0.2185014,
0.4420628,
0.06924383,
0.0722985,
-0.2567231,
-0.1596065,
-0.1061559,
-0.2322583,
0.3911018,
-0.09749275,
0.2999204,
0.4402874,
-0.1757561,
0.3472887,
0.03316157,
-0.1090389,
-... |
Spinal nerve compression: a cause of claudication. | Thirteen patients were referred with claudication thought by the referring doctor to be vascular in origin. A careful history and physical examination followed by contrast radiculography showed their symptoms to be due to spinal nerve compression. The clinical picture is presented and the main pitfalls in diagnosis is ... | 280,780 | [
0.004647512,
0.1184841,
0.03674121,
-0.003179706,
-0.03746048,
-0.1318191,
-0.3548344,
-0.2558082,
-0.04322723,
-0.02613151,
0.11624,
-0.05745507,
-0.1120429,
-0.2346181,
-0.1123308,
-0.1714964,
-0.1654104,
0.247512,
-0.05289432,
0.1661275,
0.1079089,
0.057995,
0.04530649... |
Routine serum lipid analysis in New Zealand. | For two years pairs of serum specimens with a wide range of cholesterol and triglyceride concentrations were regularly dispatched each month to all New Zealand medical laboratories known to measure blood lipids. Four weeks after specimen dispatch each laboratory received a report which displayed all results along with ... | 280,786 | [
-0.2238566,
0.210789,
-0.1987059,
-0.5245467,
0.08631517,
-0.206756,
-0.1828214,
0.329668,
0.2972988,
-0.05646862,
0.2068019,
0.04573869,
0.05897032,
-0.1144911,
-0.09686936,
-0.3272258,
-0.2388207,
-0.1596668,
-0.07154143,
0.3049853,
-0.3770441,
0.1492302,
-0.1386706,
... |
Effect of renovascular hypertension of the morphology of oral blood vessels. | Renovascular hypertension was created in twenty adult male rats to study the effects of systolic hypertension on the morphology of vessels supplying the gingiva, periodontal membrane, pulp tissue, and alveolar bone. Gingival arterioles showed changes consisting mainly of proliferation of the intima and elastic layers, ... | 280,849 | [
0.0170521,
0.2219758,
-0.2213465,
0.2605144,
0.03177467,
-0.455247,
-0.002362747,
-0.1311779,
0.04335665,
-0.0006164302,
-0.07302143,
-0.08987004,
-0.05788476,
-0.1981295,
-0.657282,
-0.04961076,
-0.1793481,
0.2501653,
-0.1182601,
0.01316393,
0.2558057,
0.2000885,
-0.0918... |
[Modification of the whip-mix articulator for reproducible fixation of various jaw relations]. | The Whip Mix articulator is an Arcon device, which, in combination with the quick mount face bow, represents a useful prosthetic instrument for practice. Modified as described it enables the practitioner to obtain reproducible THIOP and IOP jaw relations. Also, the concept of "long centric" may be applied to reconstruc... | 280,952 | [
0.07389151,
0.1137997,
-0.1390421,
-0.03686519,
0.1639906,
-0.3489808,
-0.4401911,
0.4603705,
0.2905484,
0.1878812,
-0.0179289,
-0.08850109,
0.2800082,
-0.09902032,
-0.4383099,
-0.3189544,
-0.2864215,
-0.03017387,
0.1139927,
-0.1306982,
0.5211629,
-0.4185617,
-0.04496832,... |
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