Showing papers by "Chonbuk National University published in 1987"
TL;DR: After chemotherapy, the level of B-HCG in serum decreased, and it was conclued that the choriocarcinoma of the lung was the primary tumor.
Abstract: Choriocarcinoma was found in the lung of a 33-year-old woman. It was detected by percutaneous needle lung biopsy in the right lung and severe elevation of B-HCG in serum (200,000 IU/L). Primary choriocarcinoma of the lung is an extremely rare disease.
Thus the patient was fully examined, especially the genital tract in order to find the choriocarcinoma foci, but this failed to disclose foci of the choriocarcinoma.
After chemotherapy (MTX, actinomycin-D, Cyclophosphamide) the level of B-HCG in serum decreased.
Thus we conclued that the choriocarcinoma of the lung was the primary tumor.
42 citations
TL;DR: Wyoming bentonite, Fithian illite, and basalt from the Umtanum Formation, Washington, were treated hydrothermally at 200° to 460°C and 260 to 500 bars for 71 to 584 days as mentioned in this paper.
Abstract: Wyoming bentonite, Fithian illite, and basalt from the Umtanum Formation, Washington, were treated hydrothermally at 200° to 460°C and 260 to 500 bars for 71 to 584 days No change was detected for the bentonite and basalt, except for the loss of calcite and exchange of Ca for K in the smectite and the growth of a small amount of smectite (presumably from a glass phase) in the basalt Calcite in the initial bentonite may have stabilized the smectite by Ca/K exchange; thus, if the latter is used as a packing material in a nuclear waste repository, limestone should be added No change was detected in the illite samples treated <300°C; however, at 360°C, euhedral crystals of berthierine and illite grew at the expense of original illite/smectite, apparently by a solution-crystallization process Significant changes involving the dissolution of starting phases and the formation of illite and chlorite were also detected in mixtures of basalt and bentonite at 400°C; at temperatures <400°C, no changes were observed The newly formed mineral phases (berthierine, illite, and chlorite) observed by transmission electron microscopy showed euhedral to subhedral shapes These shapes are the same as those observed in hydrothermally altered sediments from the Salton Sea field and different from those from burial metamorphic environments, such as Gulf Coast sediments The reaction mechanism is apparently the dissolution of reactants followed by the crystallization of products from solution, without conservation of structural elements of the reactants Reactions apparently required temperatures greater than those for analogous changes in nature, suggesting that the degree of reaction was controlled by kinetics The lack of dissolution in experimental runs at low temperatures, however, does not necessarily imply long-term stabilities of these clay minerals
30 citations
TL;DR: Three forms of inulase were purified from Aspergillus niger by ultrafiltration, DEAE-Trisacryl chromatography Sephadex G-150 gel filtration, and preparative isoelectric focusing, and the overall molecular characteristics were similar, but the three forms exhibited distinctly different kinetic constants.
25 citations
TL;DR: Three fractions of inulase differing in isoelectric pH were isolated from a strain of Aspergillusniger by isoelectedric focussing and characterized in their temperature stability, finding one fraction having main activity showed a high thermal stability comparable to that of the Novozyme 230 at 60°C.
Abstract: The three fractions of inulase differing in isoelectric pH were isolated from a strain ofAspergillusniger by isoelectric focussing and characterized in their temperature stability. These fractions had distinguishable thermal stability. Among them, one fraction (pI 5.2) having main activity showed a high thermal stability comparable to that of the Novozyme 230 (Novo A/S, Denmark) at 60°C.
18 citations
TL;DR: As a series of systematic classification for Korean common liver fluke, Fasciola sp.
Abstract: As a series of systematic classification for Korean common liver fluke, Fasciola sp., karyotype was investigated by means of the modified air-drying technique and of the regular Giemsa staining, Also, C-staining method was applied for detailed karyological analysis from the germ cells of the fluke. The following is a brief summary of the leading facts gained through the experiment. Korean Fasciola sp. was classified into three types based on their chromosomal complements; individuals with 20 or 30 chromosomes and with a 20/30 mosaic constitution. Worms having 30 chromosomes represent a triploid form with 3 sets of 10 basic chromosomes, while those with 20 chromosomes were diploid and mosaic individuals were 2n/3n mixoploid. The frequency of the individual type calculated is as follows; 67.45% of 212 flukes examined was of diploid, 10.85%, triploid, and the rest, 21.7%, mixoploid, respectively. In many cases, two or three types were found in the peculiar bovine host while single type inhabitant was about 20% out of 52 cases. The twenty chromosomes consisted of 1 parir of large metacentrics, 4 pairs of medium-sized subtelocentrics, and 5 pairs of small submetacentrics, while constitution of the thirty chromosomes was nearly interpreted as a triploid form with 3 sets of 10 basic chromosomes. The high centromeric indexes of both types are the first pairs among all the examined, and 37.93% was of diploid and 47.93%, triploid, respectively. In mixoploid individuals, constitution of the chromosomes of diploid or triploid cells was the same as that of diploid or triploid individuals. All the chromosomes of the germ cells in both types showed C-band around the centromeic region and especially the chromosomes no's 3, 7, and 8 showed a remarkable C-band distinguished from other chromosomes. The variance for the sizes of the worms and the eggs were not parallel with three different genotypes in Korean common liver fluke.
13 citations
TL;DR: It is suggested that renal vein thrombosis is a complication of the nephrotic syndrome rather than a cause, and becomes a more frequently recognizable clinical entity since diagnosis can be easily established by modern angiographic techniques.
Abstract: The coexistence of nephrotic syndrome and renal vein thrombosis has been of medical interest since Rayer’s description in 1840. Renal vein thrombosis has been underdiagnosed because of its variable clinical and radiological findings but it becomes a more frequently recognizable clinical entity since diagnosis can be easily established by modern angiographic techniques.
Generally it has been believed that renal vein thrombosis may cause nephrotic syndrome. But recent articles strongly suggest that renal vein thrombosis is a complication of the nephrotic syndrome rather than a cause. We report three cases of nephrotic syndrome associated with renal vein thrombosis.
7 citations
TL;DR: It is suggested that a circannual rhythm of renin concentration may be related to hibernation and that seasonal changes in sodium concentration and osmolality relate closely to environmental temperature, although the mechanisms are not clear.
4 citations
TL;DR: In this paper, a measurement system to obtain a proper value of disaccommodation intensity D was devised and applied to Metglas 2605SC and Fe 5 Co 7 Si 15 B 10 amporphous ribbons as received.
Abstract: A new measurement system to obtain a proper value of disaccommodation intensity D was devised and applied to Metglas 2605SC and Fe 5 Co 7 Si 15 B 10 amporphous ribbons as received. The initial susceptibility χ, the stabilization field H o and the effective domain wall thickness δ were obtained from analysis of minor hysteresis loops at room temperature. The effects of a tensile stress σ along the long axis of the ribbons on χ, H o , D and δ were investigated. The inverse of susceptibility r and H o increased linearly with log t where t is the time after demagnetization δ was almost constant with t except at small σ. The disaccommodation intensity defined as D=Δχ/χ(t 1 ) was much greater than reported previously and was enhanced by σ.
2 citations
TL;DR: In this paper, three intrinsic relations of [m istg1]−(b−y), [c istg1], [c fixme1], and β indices data inuvbyβ photometric system for three classical cepheids whose reddening values had been determined with the aid of photometry of field stars have been established.
Abstract: By use of the reddening free [m
1], [c
1], and β indices data inuvbyβ photometric system for three classical cepheids whose reddening values had been determined with the aid of photometry of field stars, three intrinsic relations of [m
1]−(b−y), [c
1]−(b−y), and β−(b−y) have been established. It was shown that these three relations can be used to determine the colour excesses for other classical cepheids.
2 citations
17 Feb 1987
TL;DR: In this paper, the authors analyzed the accuracy of interference phase neasrement that can be achieved by using heterodyne technique in conjunction with interfering speckle fields and showed that the mean square fluctuation of the measured phase depends not only on the traditionally introduced scintillation noise but also on the spatially random arrangement of the speckles over the detector aperture (speckle grain noise).
Abstract: We analyze the ultimate accuracy of interference phase neasrement that can be achieved by using heterodyne technique in conjunction with interfering speckle fields. We show that the mean square fluctuation of the measured phase depends not only on the traditionally introduced scintillation noise but also on the spatially random arrangement of the speckles over the detector aperture (speckle grain noise). Scintillation noise arises because the two speckle fields are partially decorrelated, in which case the interference pattern does not become completely dark even when the two speckle fields are out-of-phase since destructive interference is not complete. However, even in the case of perfect correlation, intrinsic random noise is to be expected, since the position of the speckles over the detector is random and therefore the total signal exhibits statistical fluctuations, which we call speckle grain noise. Our formula show, as expected, that scintillation noise can be reduced by enlarging the detector aperture which, however, cannot be larger than half of an interfringe spacing. On the contrary speckle grain noise cannot be reduced by enlarging the detect& aperture since the effect of increased sampling is cancelled by the increased range of phase variation.
TL;DR: The results suggest that plasma PGE2 can be used for the measurement of cell-mediated immunity and follow-up study in patients with chronic active hepatitis and hepatitis B carriers.
Abstract: Prostaglandin E2 (PGE2), one of the major prostaglandins synthesized in human monocyte and macrophage, is able to modulate T lymphocyte reactivity, such as lymphokine secretion and cytotoxicity. Some immunologic abnormalities such as alteration in the synthesis of PGE2 by monocyte and macrophage or in the response of T lymphocytes to PGE2 can be found in clinical disease.
We measured the plasma PGE2 level in the control group and patients with chronic liver disease.
The results were obtained as follows.
The mean plasma PGE2 level was 2.65 ± 0.69 pg/ml in the control group.
The mean plasma PGE2 level was 9.07 ± 5.89 pg/ml in 15 patients with chronic active hepatitis and was significantly higher than that of the control group (p<0.01).
The plasma mean PGE2 level was 4.65 ± 1.59 pg/ml in 8 patients in the healing stage or stable stage of chronic hepatitis and was tend to decrease. However, this decrease is significantly different from that of the control group.
The plasma PGE2 level was 3.5 ± 0.92 pg/ml in 4 hepatitis B carriers and was not significantly different from that of the control group (p<0.05).
This results suggest that plasma PGE2 can be used for the measurement of cell-mediated immunity and follow-up study in patients with chronic active hepatitis and hepatitis B carriers.
TL;DR: In this paper, the distribution of long-period classical cepheids on the projected galactic plane has been traced from the distribution distribution of classical CEPheids and compared with those from other optical tracers such as H II regions and OB star groups.
Abstract: Major spiral arms were traced from the distribution of long-period classical cepheids on the projected galactic plane The position of these spiral features have been compared with those from other optical tracers such as H II regions and OB star groups Also the galactic longitude distribution of classical cepheids and open clusters are compared
TL;DR: In this article, a method for measuring the local size distribution of spherical particles diffusing in a fluid was proposed based on the light scattering theory and makes use of an ordinary Laser Doppler Anemometry apparatus.
Abstract: This work concerns a method for measuring the local size distribution of spherical particles diffusing in a fluid. It is based on the light scattering theory and makes use of an ordinary Laser Doppler Anemometry apparatus. The required information is obtained by analyzing and processing the signal from the PM, which observes the measuring volume at the angle of 90. The pinhole is replaced by a slit oriented in such a way that the intensity of the scattered light depends only on the diameter of the particle and on a single space variable. A direct calibration of the response of the optical system is used to compute the size distribution from the scattered light probability density.