scholarly journals Commission 15: Physical Study of Comets, Minor Planets, and Meteorites (L’Etude Physique des Cometes, des Petites Planetes et des Meteorites)

2000 ◽  
Vol 24 (1) ◽  
pp. 93-114
Author(s):  
Vincenzo Zappala ◽  
H. Uwe Keller ◽  
M. Bailey ◽  
R. P. Binzel ◽  
M. T. Capria ◽  
...  
Keyword(s):  
Present Report ◽  
Minor Planets ◽  
Single Section ◽  
Physical Study ◽  
Working Groups ◽  
Space Material ◽  
The Relationship

The present report of Commission 15 has been, as usual, prepared primarily by the chairpersons of the two working groups. E. Tedesco wrote the section about Asteroids and Meteorites, with the assistance of A. Cellino, G. Consolmagno and C.-I. Lagerkvist. W. F. Huebner prepared the section about Comets, with the assistance of J. Benkhoff, H. Boehnhardt, J. Brandt, M. T. Capria, A. Cochran, G. Cremonese, M. Duncan, W. Huntress, H. Levison, and G. P. Tozzi. Moreover, the whole document has been assembled by K. Muinonen, who did the final editing, to merge the two reports and fit the document into the allotted space. Material taken from both major areas regarding the relationship between comets and asteroids has been combined into a single section.

scholarly journals Commission 15: Physical Study of Comets, Minor Planets and Meteorites

1997 ◽  
Vol 23 (1) ◽  
pp. 183-202
Keyword(s):  
Minor Planets ◽  
Usual Practice ◽  
Neutral Gas ◽  
Physical Study ◽  
Working Groups

This report has, following the usual practice in Commission 15, been compiled primarily by the chairpersons of the two working groups. E. Tedesco prepared the entire section about Asteroids and Meteorites. H. U. Keller prepared the section about Comets using material originally prepared by E. Kiihrt (nuclei), H. Bohnhardt (dust), R. Schulz (neutral gas), and W.-H. Ip (plasma). M. F. A’Hearn did minor editing to merge the two reports and fit the report into the allotted space.

scholarly journals COMMISSION 15: PHYSICAL STUDY OF COMETS AND MINOR PLANETS

2008 ◽  
Vol 4 (T27A) ◽  
pp. 154-162
Author(s):  
Walter F. Huebner ◽  
Alberto Cellino ◽  
Edward F. Tedesco ◽  
Dominique Bockelée-Morvan ◽  
Dmitrij F. Lupishko ◽  
...  
Keyword(s):  
Working Group ◽  
Minor Planet ◽  
Minor Planets ◽  
Physical Study ◽  
Working Groups

The Commission 15 report was prepared primarily by the chairpersons of the two working groups: T. Yamamoto of the Comet Working Group and R. A. Gil-Hutton of the Minor Planet Working Group. In particular, the Comet section was produced by T. Yamamoto with the assistance of D. Bockelée-Morvan, H. Kawakita, and D. Prialnik, while the Minor Planet section was produced by R. A. Gil-Hutton with the assistance of A. Cellino, A. W. Harris (DLR), R. Jedicke, A.-C. Levasseur-Regourd, R. M. Schulz, T. B. Spahr, and P. Vernazza. W. F. Huebner was responsible for the Introduction. The final editing and merging of the various sections and subsections of the report was carried out by the Commission Secretary, D. C. Boice.

scholarly journals Alterations in cellular and organellar phospholipid compositions of HepG2 cells during cell growth

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tokuji Tsuji ◽  
Shin-ya Morita ◽  
Yoshinobu Nakamura ◽  
Yoshito Ikeda ◽  
Taiho Kambe ◽  
...  
Keyword(s):  
Cell Growth ◽  
Hepg2 Cells ◽  
Phospholipid Class ◽  
Present Report ◽  
Phospholipid Metabolism ◽  
Cancer Cell Growth ◽  
Microsomal Membranes ◽  
Intracellular Organelles ◽  
The Relationship ◽  
Pe Ratio

AbstractThe human hepatoblastoma cell line, HepG2, has been used for investigating a wide variety of physiological and pathophysiological processes. However, less information is available about the phospholipid metabolism in HepG2 cells. In the present report, to clarify the relationship between cell growth and phospholipid metabolism in HepG2 cells, we examined the phospholipid class compositions of the cells and their intracellular organelles by using enzymatic fluorometric methods. In HepG2 cells, the ratios of all phospholipid classes, but not the ratio of cholesterol, markedly changed with cell growth. Of note, depending on cell growth, the phosphatidic acid (PA) ratio increased and phosphatidylcholine (PC) ratio decreased in the nuclear membranes, the sphingomyelin (SM) ratio increased in the microsomal membranes, and the phosphatidylethanolamine (PE) ratio increased and the phosphatidylserine (PS) ratio decreased in the mitochondrial membranes. Moreover, the mRNA expression levels of enzymes related to PC, PE, PS, PA, SM and cardiolipin syntheses changed during cell growth. We suggest that the phospholipid class compositions of organellar membranes are tightly regulated by cell growth. These findings provide a basis for future investigations of cancer cell growth and lipid metabolism.

Intra-Task Reliability and Specificity of Individual Consistency

1970 ◽  
Vol 30 (2) ◽  
pp. 583-587 ◽  
Author(s):  
Albert V. Carron
Keyword(s):  
Motor Response ◽  
Present Report ◽  
Motor Task ◽  
Response Component ◽  
Linear Movement ◽  
The Mean ◽  
Individual Consistency ◽  
Response Consistency ◽  
Relationship Of ◽  
The Relationship

The present report is based on reanalysis of data of Marisi (1969) in order to examine the relationship of consistency of motor response among the component responses of a single motor task. 120 high school Ss were tested on a special task, the rho. A single trial on this motor task can be logically separated into three component motor responses: reaction time, a short circular movement, and a short linear movement. The results indicated that consistency of motor response was moderately reliable within the response components but tended to be response-component specific. Further, both the reliability and specificity of motor-response consistency were independent of the size of the mean performance scores.

scholarly journals Preface: Joint Discussion JD5 From Meteors and Meteorites to their Parent Bodies: Current Status and Future Developments

2012 ◽  
Vol 10 (H16) ◽  
pp. 137-137 ◽  
Keyword(s):  
Planetary Systems ◽  
Interplanetary Dust ◽  
Current Status ◽  
Minor Planets ◽  
Division Iii ◽  
Future Developments ◽  
Physical Study ◽  
Fundamental Astronomy

The Joint Discussion 5 entitled "From Meteors and Meteorites to their Parent Bodies: Current Status and Future Developments" within the IAU GA 2012 was organized with the coordination of the IAU Division III Planetary Systems Sciences and the IAU Commission N. 22 Meteors, Meteorites & Interplanetary Dust, together with the supports by Divisions I Fundamental Astronomy, Division XII Union-Wide Activities, Commission 4 Ephemerides, Commission 6 Astronomical Telegrams, Commission 8 Astrometry, Commission 15 Physical Study of Comets & Minor Planets, and Commission 20 Positions & Motions of Minor Planets, Comets & Satellites.

PARENTAL PSYCHOPATHOLOGY AND CHILDREN'S ADJUSTMENT TO LEUKEMIA

PEDIATRICS ◽  
1994 ◽  
Vol 94 (5) ◽  
pp. A54-A54
Author(s):  
Ronald T. Brown ◽  
Nadine J. Kaslow ◽  
Avi Madan-Swain ◽  
Karla J. Doepke ◽  
Sandra B. Sexson ◽  
...  
Keyword(s):  
Psychiatric Disorder ◽  
Attributional Style ◽  
Psychosocial Functioning ◽  
Developmental Psychopathology ◽  
Present Report ◽  
Parental Psychopathology ◽  
Lymphocytic Leukemia ◽  
Behavioral Symptoms ◽  
Behavioral Pediatrics ◽  
The Relationship

Objective: The primary purpose of this study was to examine the relationship between parental psychopathology and psychosocial functioning of children in whom acute lymphocytic leukemia (ALL) has been diagnosed. Method: The sample consisted of 61 mother-child dyads. Twenty-one (34%) mothers met DSM-III-R criteria for at least one psychiatric disorder based on a Structured Clinical Interview for Diagnosis (SCID). Results: Findings revealed that compared with children whose mothers did not meet DSM-III-R criteria for a psychiatric disorder, children with mothers who evidenced a psychiatric disorder self-reported more anxiety and a maladaptive attributional style and were reported by their mothers as evidencing more depression and a range of internalizing behavioral symptoms. Conclusions: Although our earlier research suggested that ALL children show relatively few symptoms of psychopathology, the present report reveals high rates of psychiatric difficulties in the mothers of ALL youth. These findings and their implications are discussed within a model that incorporates behavioral pediatrics and developmental psychopathology.

Commission 15: Physical Study of Comets, Minor Planets and Meteorites

1997 ◽  
pp. 183-202
Author(s):  
Michael F. A’Hearn ◽  
Vincenzo Zappalà ◽  
Hermann Böhnhardt ◽  
Alan W. Harris ◽  
Mark Bailey ◽  
...  
Keyword(s):  
Minor Planets ◽  
Physical Study

scholarly journals Commission 15: Physical Study of Comets, Minor Planets and Meteorites

1982 ◽  
Vol 18 (1) ◽  
pp. 153-174
Author(s):  
Bertram Donn
Keyword(s):  
Origin Of Life ◽  
Subject Matter ◽  
Minor Planets ◽  
Physical Study ◽  
Experimental Approaches ◽  
The Subject ◽  
The Origin Of Life ◽  
Observational Techniques

The illness which prevented Dr. N. Richter from presiding over Commission 15 sessions in Montreal proved fatal on November 26, 1980.Books published since 1978 dealing with the subject matter of Commission 15 are: (1) Comets and The Origin of Life, ed. C. Ponnomperuma, 1981, D. Reidel pub. Co., Dordrecht, Holland (designated C. P. Colloq. in Report); (2) Comets, ed. L. Wilkening, Univ. Arizona Press, 1982 (designated Comets, 1982 in Report) contains invited reviews of Tucson, IAU Colloquium No 61, “Comets” Gases, Ices, Grains, Plasma”. Contributed papers will appear in a volume of Icarus. Papers dealing with cometary and asteroidal orbits appear in IAU Symp. 81, 1979 and with cometary grains and meteorites in IAU Symp. 90, 1981. Proceedings of Workshops are: (1) “Experimental Approaches to Comets”, ed. J. Oro, 1978, Lunar and planetary Institute, Pub. 361; (2) “Modern Observational Techniques for Comets”, eds. J. Brandt et al., 1981, JPL Pub. 81-68, NASA.

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