351
|
Hydrogen passivation of a substitutional sulfur defect in silicon. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:9936-9940. [PMID: 9945819 DOI: 10.1103/physrevb.38.9936] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
|
352
|
Instabilities in deeply supersaturated systems. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:6881-6886. [PMID: 9945369 DOI: 10.1103/physrevb.38.6881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
|
353
|
Plasmid-mediated beta-lactamase (TEM-7) involved in resistance to ceftazidime and aztreonam. REVIEWS OF INFECTIOUS DISEASES 1988; 10:860-6. [PMID: 3055178 DOI: 10.1093/clinids/10.4.860] [Citation(s) in RCA: 80] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
TEM-7, a novel TEM-type beta-lactamase (pI 5.41) encoded on a plasmid of approximately 85 kilobases, was found in a clinical isolate of Citrobacter freundii. Strains containing this enzyme exhibited decreased susceptibility to ceftazidime (64-fold) and aztreonam (16-fold) but not to other third-generation cephalosporins. Addition of a beta-lactamase inhibitor--clavulanic acid, sulbactam, or YTR 830--restored normal susceptibility to associated compounds such as ampicillin, piperacillin, ceftazidime, and aztreonam. DNA-DNA hybridization of an intragenic probe of TEM-1 occurred with a 19-kilobase EcoRI fragment of the plasmid encoding TEM-7. A TEM-2 derivative, TEM-201, with characteristics similar to those of TEM-7 was selected spontaneously in the presence of ceftazidime in vitro.
Collapse
|
354
|
Defect centers and changes in the electrical characteristics of Al/n-type Si Schottky diodes induced by hydrogen-ion implantations. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:8982-8987. [PMID: 9944268 DOI: 10.1103/physrevb.37.8982] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
|
355
|
Growth kinetics of a chemisorbed overlayer in the presence of impurities. PHYSICAL REVIEW LETTERS 1988; 60:1053-1056. [PMID: 10037929 DOI: 10.1103/physrevlett.60.1053] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
356
|
Ar-cluster-size distribution in a supersonic jet beam. PHYSICAL REVIEW. B, CONDENSED MATTER 1987; 35:6944-6949. [PMID: 9940953 DOI: 10.1103/physrevb.35.6944] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
|
357
|
[Studies on anti-platelet aggregation effect of Allitridi in hypercholesterolemic rabbits]. ZHONG XI YI JIE HE ZA ZHI = CHINESE JOURNAL OF MODERN DEVELOPMENTS IN TRADITIONAL MEDICINE 1986; 6:677-8, 646. [PMID: 3028659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
358
|
Physical realization of two-dimensional Ising critical phenomena: Oxygen chemisorbed on the W(112) surface. PHYSICAL REVIEW. B, CONDENSED MATTER 1985; 31:5918-5922. [PMID: 9936588 DOI: 10.1103/physrevb.31.5918] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
|
359
|
More than one monolayer adsorption of oxygen on the W(112) surface. PHYSICAL REVIEW. B, CONDENSED MATTER 1985; 31:1950-1953. [PMID: 9935999 DOI: 10.1103/physrevb.31.1950] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
|
360
|
[Kinetic parameters of anion adenosine triphosphatase of erythrocytes]. VOPROSY MEDITSINSKOI KHIMII 1983; 29:128-30. [PMID: 6132493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Effect of anions on kinetic properties of ATPase from rat erythrocyte membranes was studied. The ATPase activity was competitively inhibited by thiocyanate in mixtures containing sulfite. Thiocyanate, chlorine-anion, bicarbonate and sulfite affected noncompetitively the enzymatic activity as compared with Mg2+-ATP, ADP and calcium. Dicyclohexylcarbodiimide inhibited similarly Mg2+- and Mg2+, SO2-(3)-ATPase activities of membranes. Effect of anions on kinetic parameters of anion-dependent ATPases appears to be analogous in erythrocytes and mitochondria; the data obtained corresponded to early proposed hypothesis of the anion effect on ATPases.
Collapse
|
361
|
Abstract
A large polypoid uterine mas was composed to two distinct and separate parts: a malignant mixed müllerian tumor (MMMT) and a benign mixed mesenchymal tumor (BMMT). It was considered a collision of two neoplasms rather than a malignant degeneration of the BMMT. Malignant transformation of benign mesenchymal uterine tumors is a controversial concept which is difficult to prove or disprove. Concerning the histogenesis of MMMT it appears, at least in some cases, that they originate not from a single multipotential mullerian cell, but rather from two, a stromal cell and an epithelial cell. It is suggested furthermore, that in certain instances presence of one neoplastic component, e.g., adenocarcinoma, can incite proliferation of the second, sarcomatous element of the MMMT.
Collapse
|
362
|
|
363
|
Abstract
In a case-control study, 689 consecutive patients with cervical carcinoma were studied for their use of oral contraceptives. The control patients were matched for age, ethnic origin, age at first pregnancy, age at first coitus, and socioeconomic status. There was no significant difference between case and control subjects in the duration or oral contraceptive use, the type of estrogen used, or the years in which oral contraceptives were used. The mean duration of oral contraceptive use was 30.9 months by the case subjects and 30.2 months by the control subjects.
Collapse
|
364
|
|
365
|
Incidence, significance, and follow-up of para-aortic lymph node metastases in late invasive carcinoma of the cervix. Am J Obstet Gynecol 1977; 128:336-40. [PMID: 860741 DOI: 10.1016/0002-9378(77)90633-0] [Citation(s) in RCA: 82] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
One hundred and four patients with Stages II and III of cervical carcinoma underwent para-aortic node biopsies. Of these, 12.5 per cent of patients with Stage IIA, 14.9 per cent of patients with Stage IIB, and 38.4 per cent of patients with Stage III carcinoma of the cervix had positive para-aortic nodes. They subsequently recieve 6,000 rads to the para-aortic area. The radiotherapy complication rate was high. Within four years, 50 per cent of the patients with positive para-aortic nodes had other distant metastases. The two- and four-year follow-up is presented. Only one of 13 patients with positive para-aortic nodes was alive at the end of four years.
Collapse
|
366
|
Abstract
There were no significant differences between the mean blood plasma (leukocyte-free) RNAase activity among 128 healthy women volunteers age 13-70 and 49 women with benign gynecological tumors. Exceptions to this finding were three apparently healthy women volunteers who had plasma enzyme activity which was higher than two standard deviations from the mean of the control subjects. Increased plasma RNAase activity was also demonstrated for 21 of 22 patients with ovarian carcinomas of differential histological types. This group included two patients with Stage IA, two patients with Stage IC ovarian carcinoma, and 17 patients with advanced ovarian carcinoma. The one exception was a patient with a well encapsulated, mucinous cystadenocarcinoma, Stage IA. The plasma RNAase activity returned to normal values in all of the cancer patients who had no clinical evidence of residual malignant tissue after surgical treatment. However, the enzyme activity also returned to a normal value in one of the 17 women in whom all of the malignant tissue was not removed. These data indicate that plasma RNAase activity can be utilized as a tumor marker for the presence of ovarian malignancies of various histological types, and to differentiate between malignant and benign neoplasms.
Collapse
|
367
|
|
368
|
Closure of the human umbilical artery: a physiological demonstration of Burton's theory. Eur J Obstet Gynecol Reprod Biol 1977; 7:365-8. [PMID: 264063 DOI: 10.1016/0028-2243(77)90064-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
30 umbilical cords of normal full-term infants were examined immediately after birth for closure of the arteries. Multiple constrictions were observed in the arteries at birth, which increased in number and degree with time. Between the constrictions there were segments of dilatations with trapped blood. Cutting through the constrictions in the cords clamped later than 1 min after birth did not result in leakage of blood from the adjoining dilated segments which contained trapped uncoagulated blood indicating complete closure. This behavior of the vessels is a physiologic example of critical closure of small arteries according to Burton's theory.
Collapse
|
369
|
Abstract
The main objection to radical hysterectomy and pelvic node dissection as a method of primary treatment for cervical carcinoma is the inherent danger to the ureters that may result in ureterovaginal fistula formation. The purpose of this paper is twofold: (1) to show that with adoption of certain surgical and clinical measures our incidence of fistula formation has been significantly reduced, and (2) to discuss the management of ureterovaginal fistula when it occurs.
Collapse
|
370
|
Abstract
Twelve patients had barrel-shaped cervical carcinoma among 493 new patients with primary invasive cervical carcinoma, at the Downstate Medical Center, New York from January, 1964 to December, 1972. The incidence of barrel-shaped lesions among invasive carcinoma of the cervix was 2.43%. All 12 patients were treated with external radiation to the whole pelvis followed by two radium applications. In six patients an extrafascial hysterectomy was performed 6 to 12 weeks after radiation. Six patients died and six survived (50%). Six patients survived for over 2 years after therapy with no evidence of recurrence. Of these, four are alive and well for over 5 years. All six patients died within 20 months after therapy. The barrel-shaped cervical carcinoma fared poorly (six deaths among 12 patients or 50%) when compared with the over-all Stage I and Stage II cervical carcinoma (87 deaths among 339 patients or 25.5%).
Collapse
|
371
|
|
372
|
|
373
|
Transfer RNA methylase activity in benign human ovarian neoplasms. Cancer Res 1974; 34:2416-8. [PMID: 4367293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
374
|
The incidence and significance of para-aortic lymph node metastases in late invasive carcinoma of the cervix. Am J Obstet Gynecol 1974; 118:749-56. [PMID: 4815854 DOI: 10.1016/0002-9378(74)90483-9] [Citation(s) in RCA: 69] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
375
|
|
376
|
Transfer RNA methylase and transfer RNA methylase-inhibitor activity in normal and malignant human ovarian tissue. Cancer Res 1973; 33:2518-23. [PMID: 4795393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
377
|
Cervical carcinoma and oral contraception. Obstet Gynecol 1972; 40:139-46. [PMID: 5047946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
378
|
A long term follow-up study of 1,055 cases of postpartum tubal ligation. THE JOURNAL OF OBSTETRICS AND GYNAECOLOGY OF THE BRITISH EMPIRE 1967; 74:875-80. [PMID: 12278385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
|
379
|
A long term follow-up study of 1,055 cases of postpartum tubal ligation. THE JOURNAL OF OBSTETRICS AND GYNAECOLOGY OF THE BRITISH COMMONWEALTH 1967; 74:875-80. [PMID: 6066464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
380
|
Obstetric management of conjoined twins. THE JOURNAL OF OBSTETRICS AND GYNAECOLOGY OF THE BRITISH COMMONWEALTH 1967; 74:757-62. [PMID: 6058541 DOI: 10.1111/j.1471-0528.1967.tb03793.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
381
|
Two cases of congenital sacral teratoma obstructing labour. THE JOURNAL OF OBSTETRICS AND GYNAECOLOGY OF THE BRITISH COMMONWEALTH 1966; 73:853-4. [PMID: 5919110 DOI: 10.1111/j.1471-0528.1966.tb06098.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|