Ruthenium-Containing Catalysts Based on Halloysite Aluminosilicate Nanotubes of Different Origin in Benzene Hydrogenation

Author(s):  
V. V. Nedolivko ◽  
G. O. Zasypalov ◽  
S. S. Boev ◽  
K. A. Cherednichenko ◽  
V. A. Vinokurov ◽  
...  
1971 ◽  
Vol 67 (1) ◽  
pp. 151-158 ◽  
Author(s):  
J. Tamm ◽  
K. D. Voigt

ABSTRACT The increased urinary excretion of testosterone and epitestosterone following the administration of HCG or Cyproterone to normal males was markedly reduced by simultaneous treatment with metopirone. In females with hirsutism of different origin the pathologically increased values of testosterone and epitestosterone in urine were also lowered considerably by 74 % and 86 %, respectively, after the administration of metopirone for a period of four days.


2019 ◽  
pp. 14-16
Author(s):  
O.P. YUDINA ◽  
M.YU. BORISOV ◽  
A.S. DELIAN

Генотипирование 51 быка голштинской породы немецкой и голландской селекции по гену каппа-казеина показало, что наибольшая частота встречаемости желательного аллеля CSN3В зафиксирована у быков-производителей голландской селекции (21,43%), что на 4,4% выше встречаемости его у немецких быков. Наиболее желательный генотип CSN3ВВ каппа-казеина в изучаемом поголовье не выявлен. Частота встречаемости генотипа CSN3АВ гена каппа-казеина у быков из Нидерландов составила 42,86%, или на 8,8% выше, чем у немецких быков. Изучено влияние быков голштинской породы разного происхождения, различающихся по генотипам гена каппа-казеина на динамику живой массы их дочерей от рождения до возраста 3-й лактации. Установлено, что от быков с генотипом CSN3АВ как немецкой, так и голландской селекции рождались телочки с большей живой массой; при этом дочери быков с генотипом CSN3АА лучше росли в период от 6 до 18 мес независимо от происхождения. Живая масса дочерей быков немецкой селекции при первом оплодотворении была одинаковой, в голландской селекции преимущество на 20,4 кг имели дочери быков с генотипом CSN3АВ гена каппа-казеина. Максимальную живую массу к возрасту 1-й лактации имели дочери быков немецкой селекции с генотипом CSN3АВ (521 кг), дочери быков голландской селекции с генотипом CSN3АА (520,5 кг). У коров 3-й лактации наивысшая живая масса была у обладателей генотипа CSN3АВ (568,5 кг и 581,3 кг), в группах немецкой и голландской селекции, соответственно.Genotyping of 51 Holstein bulls of German and Dutch breeding on the Kappa-casein gene showed that the highest frequency of occurrence of the desirable allele CSN3B was recorded in Dutch breeding bulls (21.43%), which is 4.4% higher than its occurrence in German bulls. Most desirable CSN3ВВ genotype of Kappa-casein in the studied population were not identified. Frequency of genotype CSN3АВ of the gene Kappa-casein bulls from the Netherlands amounted to 42,86%, or 8.8% higher than the German bulls. Influence of the bulls of golshtinsky breed of different origin differing on gene genotypes of a Kappa-casein on dynamics of live mass of their female calves from the birth to the age of the 3rd lactation is studied. It is established that heifers with higher live weight were born from the bulls with genotype CSN3АВ both the German and Dutch breeding; moreover, the female calves of bulls with genotype CSN3АА grow better in the period from 6 to 18 months regardless of origin. The live weight of female calves of bulls of the German selection at the first insemination was the same, in the Dutch selection female calves of bulls with genotype CSN3АВ of the gene Kappa-casein had advantage of 20.4 kg. The maximum live weight by the age of the 1st lactation had female calves of bulls of German selection with genotype CSN3AV — 521 kg, female calves of bulls of Dutch selection-with genotype CSN3AA (520.5) kg. — with a genotype of CSN3AA (520.5) kg had the maximum live weight. The 3rd lactation cows had the highest live weight with CSN3AB genotype — 568.5 kg and 581.3 kg, in groups of the German and Dutch selection, respectively.


2020 ◽  
pp. 34-39
Author(s):  
Aneta Antczak-Chrobot ◽  
Maciej Wojtczak

In this research paper, development of a procedure of isolation of exopolysaccharides from frost-damaged beet and an analysis of structural and chemical composition of polymers isolated from sugar beet of different origin are presented. Total acid hydrolysis degradation integrated with HPAEC-ED analysis has been utilized to confirm the monomeric composition of the separated polysaccharides. The implementation of NMR spectral analysis and SEC chromatography of the structure of exopolysaccharides has been investigated. The results demonstrate that the chemical composition and structure of exopolysaccharides depend on their origin. Typical exopolysaccharides from Central European beet roots consist mainly of glucose monomers – and they have low branched structure – about 90% of α-1,6 linkage which is typical for dextran. The exopolysaccharides isolated from Swedish beet are characterized by 50–60% fructose monomers. They contain only about 65% α-1,6 linkages. Exopolysaccharides extracted from various origin beet differ in average molecular mass. The molecular distribution is not normal.


1985 ◽  
Vol 50 (11) ◽  
pp. 2381-2395
Author(s):  
Alena Brunovská ◽  
Ján Buriánek ◽  
Ján Ilavský ◽  
Ján Valtýni

The diffusion and the shell progressive models of deactivation caused by irreversible chemisorption of a catalytic poison are presented for a single catalyst pellet. The method for solution of the model equations is proposed. The numerical results are compared with experimental data obtained by measuring concentration and temperature changes due to thiophene poisoning in benzene hydrogenation over a nickel-alumina catalyst.


Author(s):  
Adnan Noor Shah ◽  
Yingying Wu ◽  
Javaid Iqbal ◽  
Mohsin Tanveer ◽  
Saqib Bashir ◽  
...  

1990 ◽  
Vol 265 (10) ◽  
pp. 5460-5465
Author(s):  
N Stuurman ◽  
A M Meijne ◽  
A J van der Pol ◽  
L de Jong ◽  
R van Driel ◽  
...  

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