scholarly journals Properties of Type III and Type IIIb Bursts in the Frequency Band of 8 – 80 MHz During PSP Perihelion at the Beginning of April 2019

Solar Physics ◽  
2021 ◽  
Vol 296 (1) ◽  
Author(s):  
V. N. Melnik ◽  
A. I. Brazhenko ◽  
A. A. Konovalenko ◽  
A. V. Frantsuzenko ◽  
S. M. Yerin ◽  
...  
Keyword(s):  
Frequency Band ◽  
Type Iii ◽  
Type Iiib

scholarly journals High Resolution Observations of Generalized Fast Drift Bursts

1974 ◽  
Vol 57 ◽  
pp. 249-251 ◽  
Author(s):  
Øystein Elgarøy ◽  
Per H. Rosenkilde
Keyword(s):  
High Resolution ◽  
Solar Phys ◽  
Frequency Band ◽  
Great Majority ◽  
Solar Observatory ◽  
Wave Type ◽  
Type Iii ◽  
Fast Drift ◽  
Lower Frequencies

(Solar Phys.). During 1969 and 1970 groups of generalized fast drift bursts were observed on 21 days with a high resolution radio spectrograph at Oslo Solar Observatory. Totally 48 groups were detected in the frequency band 310–340 MHz. In the great majority of the cases the groups were accompanied by metre wave type III bursts at lower frequencies.

scholarly journals Observations of the Structure of Type IIIb Radio Bursts

1980 ◽  
Vol 86 ◽  
pp. 469-470
Author(s):  
Ch. V. Sastry ◽  
K. R. Subrahmanyan ◽  
V. Krishnan
Keyword(s):  
Time Constant ◽  
Time Profile ◽  
Frequency Resolution ◽  
Center Frequency ◽  
Radio Bursts ◽  
Normal Type ◽  
Type Iii ◽  
Type Iiib ◽  
Image Position ◽  
Half Power

We observed short duration, narrow band Type IIIb radio bursts that occur just before the onset of a normal Type III burst. These observations were made with a multichannel radiometer with a center frequency of 25 MHz, time constant of 10 milliseconds and frequency resolution of 100 KHz. The average half power duration of a typical element of a Type III burst was determined. It was found to be very similar to the time profile of a normal Type III burst, i.e., sharp rise and exponential type decay. The duration of the exciter, tE, and the decay time constant, τ, determined from the average time profile were 0.88 and 0.31 seconds, respectively. The corresponding quantities for the associated Type III bursts are 6.0 and 2.1 seconds, respectively. It is interesting to note that the ratios are the same, and equal to 0.98. We found that there is no difference between the time profile of a Type III burst associated with a Type IIIb burst and that of an isolated Type III burst. We also found that the two quantities ‘tE’ and ‘ τ ’ are positively correlated in the case of isolated Type III bursts. The linear correlation coefficient is 0.70. This correlation seems to break down in the case of Type III bursts associated with Type IIIb bursts. We looked for a relation between durations of the elements of the Type IIIb bursts and that of the associated Type III bursts, and found that the two quantities are positively correlated. Lastly, we would like to point out that the elements of Type IIIb bursts observed by us are more intense than the associated Type III burst.

scholarly journals Prognostic Factors for Bile Leak and Long-Term Survival in 23 Patients with Klatskin Type III Tumors

2020 ◽  
pp. 1-6
Author(s):  
Antoine R. El Asmar ◽  
Antoine R. El Asmar ◽  
Christina Abou-Malhab ◽  
Elie Ghabi ◽  
Toufic Saber ◽  
...  
Keyword(s):  
Prognostic Factors ◽  
Bile Leak ◽  
Morbidity And Mortality ◽  
Future Research ◽  
R0 Resection ◽  
Term Survival ◽  
Type Iii ◽  
Type Iiib ◽  
Scoring Tool ◽  
Preoperative Creatinine

Objective: Surgical resection of hilar cholangiocarcinoma carries significant morbidity and mortality, particularly if postoperative bile leak occurs. Prognostic factors and scoring tools have been described for overall morbidity and mortality but none are specific for postoperative bile leak. In this study, we investigate the prognostic utility of various factors in predicting overall morbidity, mortality and risk of biliary leak in Bismuth Type III tumors with the hopes of developing a scoring tool in future research. Materials and Methods: A retrospective sample of 23 patients with Bismuth Type III tumors exclusively who underwent surgery between 2010 and 2017 were selected for this study. Demographic, surgical, pathologic and biochemical data were collected from the patients’ medical records. Results: 11 patients underwent a right hepatectomy for type IIIa tumors and 10 patients underwent a left hepatectomy for type IIIb tumors. 2 patients were lost to follow up and were excluded. R0 resection was achieved in 20 patients. Overall survival at 1, 3 and 5 years was 78.3%, 61.9% and 38.1%, respectively. A BMI >24kg/m2 was associated with a worse prognosis, increased overall morbidity and decreased survival at 1, 3 and 5 years (p<0.05). A preoperative creatinine >0.74 was associated with decreased 5-year survival (p<0.05). Conclusion: A BMI >24kg/m2 and a preoperative creatinine >0.74 are associated with a poor prognosis in Bismuth Type III Klatskin tumors. Furthermore, Age, sex, preoperative hemoglobin, tumor size, use of CUSA and type IIIb tumors demonstrate a borderline significant association with the occurrence of postoperative bile leak.

scholarly journals Prognostic factors for bile leak and long term survival in 23 patients with Klatskin Tumors Type III exclusively

2020 ◽  
Author(s):  
Antoine El Asmar ◽  
Ziad El Rassi
Keyword(s):  
Prognostic Factors ◽  
Statistical Significance ◽  
Bile Leak ◽  
Klatskin Tumor ◽  
Term Survival ◽  
Long Term Survival ◽  
Type Iii ◽  
Type Iiib ◽  
Worse Prognosis

Abstract Objective A retrospective study, handling the prognostic factors for bile leak and long term survival in 23 patients, with Hilar Cholangiocarcinoma, Bismuth Type III exclusively. Methods Between 2010 and 2017, 23 patients underwent major hepatectomy for Type III Klatskin Tumor at our institution. 11 patients underwent hepatectomy for Type IIIB tumors, 10 patients underwent right hepatectomy for Type IIIA and 2 were omitted for loss of follow-up. Results In 20 patients an R0 resection was achieved. Survival at 1, 3 and 5 years was respectively 78.3%, 61.9% and 38.1%. A BMI > 24 kg/m2 at presentation, was associated with a worse prognosis, at 1, 3 and 5 years, with statistical significance (p<0.05). A Creatinine > 0.74 at presentation, was associated with a decreased 5-year survival, with statistical significance (p<0.05). Conclusion A BMI > 24 kg/m2, a Creatinine > 0.74, are factors of worse prognosis when present in a Type III Klatskin tumor patient. Age, sex, hemoglobin level, tumor size, cusa use, and the correlation of Type IIIB tumors with bile leakage, are all variables that showed borderline significance, and thus warrant further investigations in larger studies, using multicentric data.

Type IIIb bursts and their fine structure in frequency band 18–30 MHz

2010 ◽  
Author(s):  
V. N. Melnik ◽  
H. O. Rucker ◽  
A. A. Konovalenko ◽  
N. V. Shevchuk ◽  
E. P. Abranin ◽  
...  
Keyword(s):  
Fine Structure ◽  
Frequency Band ◽  
Type Iiib

scholarly journals Ultrasonographic characteristics and outcome of Type III umbilical-portal-systemic venous shunt

2021 ◽  
Author(s):  
Linlin Zhu ◽  
Haifang Wu ◽  
Xiang Cong ◽  
Zhe Ma ◽  
Guowei Tao
Keyword(s):  
Portal Vein ◽  
Type I ◽  
Partial Closure ◽  
Vein System ◽  
Type Iii ◽  
Type Iiia ◽  
Type Iiib ◽  
Venous Shunt ◽  
Portal Systemic Shunt ◽  
Left Portal Vein

Aims: According to a novel in-utero classification termed “umbilical-portal-systemic venous shunt (UPSVS)” recently proposed for an abnormal umbilical, portal and ductal venous system, the portal-systemic shunt belongs to type III UPSVS. This study was designed to examine the ultrasonographic characteristics and outcome of type III UPSVS.Material and methods: All cases of Type III UPSVS diagnosed at our department from April 2016 to December 2020 were retrospectively studied.Results: Seventeen patients with type III UPSVS including 12 type IIIa and 5 IIIb cases were identified. Sonography showed a shunt between the inferior left portal vein and the left hepatic vein in all type IIIa cases. Three cases of type IIIb had a combination of another shunt (2 with type I and one with type IIIa). Integrate intrahepatic portal vein system was not seen in those 2 cases of type IIIb combined with type I UPSVS, leading to termination of pregnancy (TOP). TOP occurred in 4 patients with type IIIa as requested by the parents. Two cases (type IIIa and type IIIb each) underwent surgical procedure for the closure of the shunt. Spontaneous complete closure in 4 type IIIa cases and partial closure in one type IIIb case occurred during a period of 3-16 months.Conclusions: The majority of patients had type IIIa UPSVS presenting a good outcome. The lack of integrate intrahepatic portal vein system was the main reason for TOP in patients with type IIIb UPSVS. These data suggest the UPSVS classification is a useful tool for a prognosis prediction of type III UPSVS.

Some Observations on Changes in Denervated Taste Buds of Circumvallate Papillae of Rabbits

1969 ◽  
Vol 27 ◽  
pp. 308-309
Author(s):  
Sunao Fujimoto ◽  
Raymond G. Murray ◽  
Assia Murray
Keyword(s):  
Taste Buds ◽  
Taste Bud ◽  
Cell Type ◽  
Dark Cells ◽  
Type Iii ◽  
Circumvallate Papillae ◽  
Taste Bud Cells ◽  
Light Cells

Taste bud cells in circumvallate papillae of rabbit have been classified into three groups: dark cells; light cells; and type III cells. Unilateral section of the 9th nerve distal to the petrosal ganglion was performed in 18 animals, and changes of each cell type in the denervated buds were observed from 6 hours to 10 days after the operation.Degeneration of nerves is evident at 12 hours (Fig. 1) and by 2 days, nerves are completely lacking in the buds. Invasion by leucocytes into the buds is remarkable from 6 to 12 hours but then decreases. Their extrusion through the pore is seen. Shrinkage and disturbance in arrangement of cells in the buds can be seen at 2 days. Degenerated buds consisting of a few irregular cells and remnants of degenerated cells are present at 4 days, but buds apparently normal except for the loss of nerve elements are still present at 6 days.

Methionine-Specific Staining of Collagen

1982 ◽  
Vol 40 ◽  
pp. 294-295
Author(s):  
E.M. Kuhn ◽  
K.D. Marenus ◽  
M. Beer
Keyword(s):  
Amino Acids ◽  
Collagen Fibers ◽  
Type Iii Collagen ◽  
Type I ◽  
Electron Microscopic ◽  
Good Correspondence ◽  
Specific Staining ◽  
Type Iii ◽  
Different Types ◽  
Sulfur Containing

Fibers composed of different types of collagen cannot be differentiated by conventional electron microscopic stains. We are developing staining procedures aimed at identifying collagen fibers of different types.Pt(Gly-L-Met)Cl binds specifically to sulfur-containing amino acids. Different collagens have methionine (met) residues at somewhat different positions. A good correspondence has been reported between known met positions and Pt(GLM) bands in rat Type I SLS (collagen aggregates in which molecules lie adjacent to each other in exact register). We have confirmed this relationship in Type III collagen SLS (Fig. 1).

Labelling of non-A, non-B hepatitis infected chimpanzee hepatocytes with nuclease-gold conjugates

1984 ◽  
Vol 42 ◽  
pp. 250-251
Author(s):  
G. D. Gagne ◽  
M. F. Miller ◽  
D. A. Peterson
Keyword(s):  
Endoplasmic Reticulum ◽  
Experimental Infection ◽  
Uranyl Acetate ◽  
Type I ◽  
Cellular Injury ◽  
Type Ii ◽  
Tubular Structures ◽  
Type Iii ◽  
Type Iv ◽  
Infected Chimpanzee

Experimental infection of chimpanzees with non-A, non-B hepatitis (NANB) or with delta agent hepatitis results in the appearance of characteristic cytoplasmic alterations in the hepatocytes. These alterations include spongelike inclusions (Type I), attached convoluted membranes (Type II), tubular structures (Type III), and microtubular aggregates (Type IV) (Fig. 1). Type I, II and III structures are, by association, believed to be derived from endoplasmic reticulum and may be morphogenetically related. Type IV structures are generally observed free in the cytoplasm but sometimes in the vicinity of type III structures. It is not known whether these structures are somehow involved in the replication and/or assembly of the putative NANB virus or whether they are simply nonspecific responses to cellular injury. When treated with uranyl acetate, type I, II and III structures stain intensely as if they might contain nucleic acids. If these structures do correspond to intermediates in the replication of a virus, one might expect them to contain DNA or RNA and the present study was undertaken to explore this possibility.

Sign in / Sign up

Export Citation Format

Share Document