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Необходима помощь в поиске статьи
chem abstr 54 page 265 1960
ни названия, ни авторов нет...только вот такая ссылка...
если кто поможет, то огромное спасибо!
+++chem abstr
+++chem abstr
Последний раз редактировалось ini Чт дек 01, 2011 10:51 am, всего редактировалось 1 раз.
Re: chem abstr
ну или хотя бы более точную ссылку..
Re: chem abstr
что-то я никогда не видел, что на одной странице CA был только один реферат...
Обычно 5-10
Обычно 5-10
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Arkadii_Tarasevych
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Re: chem abstr
Пробовал через СкайФайндер, там есть такой тип поиска по году, странице и т.д. Выдало три абстракта. Может Вы по теме догадаетесь, какой подходит, конечно, если это вообще то, что надо:
1. X-ray method for the differentiation of {111} surfaces in AIIIBV semiconducting compounds By Warekois, E. P.; Metzger, P. H. From Journal of Applied Physics (1959), 30, 960-2. Language: Unavailable, Database: CAPLUS
Most of the AIIIBV semiconducting compds. have the zinc blende crystal structure. This structure is noncentrosymmetric, and as a consequence the modulii of F(hkl) and F(.hivin.hkl), the geometrical structure factors, have different magnitudes. This difference results in a variation in the integrated intensities of certain x-ray reflections from opposite sides of samples taken from crystals with the zinc blende structure. X-ray measurements of a series of {111} reflections from opposite sides of an InAs single crystal were made and related to the etching characteristics of these surfaces.
SubstancesReactions~2 Citings Full TextLink0 Comments 0 Tags
2. Blood glycoprotein levels in diabetes mellitus By Jonsson A; Wales J K From Diabetologia (1976), 12(3), 245-50. Language: English, Database: MEDLINE
Five glycoproteins have been measured in the blood of 145 diabetic patients with and without clinical evidence of complications. Patients with diabetic complications have higher glycoproteins levels particularly when expressed as a ratio to serum albumin levels. In 32 pairs of patients matched for age, sex, body weight, duration and treatment of diabetes, significantly higher haptoglobin, fibrinogen and caeruloplasmin levels were associated with the presence of diabetic complications, but blood glucose levels were not significantly different. Beta-lipoprotein levels were positively correlated with age and alpha2-macroglobulin levels with the duration of clinical disease, but the type of antidiabetic therapy administered did not significantly alter glycoprotein levels. It is suggested that rising levels of certain glycoproteins in the blood of diabetic patients may indicate the development of diabetic vascular complications, but a prospective study is required before it can be decided whether this change predates the clinical appearance of the complications.
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3. Phospholipase A2 as a probe of phospholipid distribution in erythrocyte membranes. Factors influencing the apparent specificity of the reaction By Martin J K; Luthra M G; Wells M A; Watts R P; Hanahan D J From Biochemistry (1975), 14(25), 5400-8. Language: English, Database: MEDLINE
The action of snake venom phospholipases A2 in intact human erythrocytes was investigated in detail. The basis phospholipase from Agkistrodon halys blomhifii was found to induce both hydrolysis of membrane phospholipids and total cell hemolysis under certain experimental conditions. The hydrolytic action of the basic enzyme was found to consist of two sequential events: (a) hydrolysis of 70% of the total cell ph osphatidylcholine without any evident hemolysis; and (b) complete hydrolysis of the remaining phosphatidylcholine, followed closely by extensive phosphatidylethanolamine hydrolysis and finally with onset of hemolysis, attack on the phosphatidylserine. At pH 7.4 and 10 mM Ca2+ only stage (a) occurred. However, a slight elevation of the pH of incubation to pH 8.0 and/or inclusion of 40 mM Ca2+ in the reaction mixture caused both events (a) and (b) to occur. The addition of glucose limited the action of the enzyme to stage (a) under any reaction conditions. An investigation showed that enzymically induced hemolysis occurred under conditions where the intracellular ATP levels were lowered. Data are presented which suggest that stage (b) is mediated by in influx of Ca2+ into the cell when the levels of ATP are low. Interestingly the phosphllipase from Naja naja venom (Pakistan) yielded results similar to those observed with the basic enzyme from Agkistrodon venom. However, the enzyme from Crotalus adamanteus and the acidic enzyme also present in the Agkistrodon venom produced only slight hydrolysis or hemolysis under any of the conditions studied. Other species of erythrocytes, e.g., guinea pig, monkey, pig, and rat, were tested but only those from guinea pig behaved similarly to the human cells. Pig, monkey, and rat erythrocytes underwent very limited hydrolysis and hemolysis. It is evident that the use of these phospholipases to probe the localization of phospholipds in erythrocyte membranes must be approached with caution. Certain facets of this problem are discussed.
1. X-ray method for the differentiation of {111} surfaces in AIIIBV semiconducting compounds By Warekois, E. P.; Metzger, P. H. From Journal of Applied Physics (1959), 30, 960-2. Language: Unavailable, Database: CAPLUS
Most of the AIIIBV semiconducting compds. have the zinc blende crystal structure. This structure is noncentrosymmetric, and as a consequence the modulii of F(hkl) and F(.hivin.hkl), the geometrical structure factors, have different magnitudes. This difference results in a variation in the integrated intensities of certain x-ray reflections from opposite sides of samples taken from crystals with the zinc blende structure. X-ray measurements of a series of {111} reflections from opposite sides of an InAs single crystal were made and related to the etching characteristics of these surfaces.
SubstancesReactions~2 Citings Full TextLink0 Comments 0 Tags
2. Blood glycoprotein levels in diabetes mellitus By Jonsson A; Wales J K From Diabetologia (1976), 12(3), 245-50. Language: English, Database: MEDLINE
Five glycoproteins have been measured in the blood of 145 diabetic patients with and without clinical evidence of complications. Patients with diabetic complications have higher glycoproteins levels particularly when expressed as a ratio to serum albumin levels. In 32 pairs of patients matched for age, sex, body weight, duration and treatment of diabetes, significantly higher haptoglobin, fibrinogen and caeruloplasmin levels were associated with the presence of diabetic complications, but blood glucose levels were not significantly different. Beta-lipoprotein levels were positively correlated with age and alpha2-macroglobulin levels with the duration of clinical disease, but the type of antidiabetic therapy administered did not significantly alter glycoprotein levels. It is suggested that rising levels of certain glycoproteins in the blood of diabetic patients may indicate the development of diabetic vascular complications, but a prospective study is required before it can be decided whether this change predates the clinical appearance of the complications.
SubstancesReactions~3 Citings Full TextLink0 Comments 0 Tags
3. Phospholipase A2 as a probe of phospholipid distribution in erythrocyte membranes. Factors influencing the apparent specificity of the reaction By Martin J K; Luthra M G; Wells M A; Watts R P; Hanahan D J From Biochemistry (1975), 14(25), 5400-8. Language: English, Database: MEDLINE
The action of snake venom phospholipases A2 in intact human erythrocytes was investigated in detail. The basis phospholipase from Agkistrodon halys blomhifii was found to induce both hydrolysis of membrane phospholipids and total cell hemolysis under certain experimental conditions. The hydrolytic action of the basic enzyme was found to consist of two sequential events: (a) hydrolysis of 70% of the total cell ph osphatidylcholine without any evident hemolysis; and (b) complete hydrolysis of the remaining phosphatidylcholine, followed closely by extensive phosphatidylethanolamine hydrolysis and finally with onset of hemolysis, attack on the phosphatidylserine. At pH 7.4 and 10 mM Ca2+ only stage (a) occurred. However, a slight elevation of the pH of incubation to pH 8.0 and/or inclusion of 40 mM Ca2+ in the reaction mixture caused both events (a) and (b) to occur. The addition of glucose limited the action of the enzyme to stage (a) under any reaction conditions. An investigation showed that enzymically induced hemolysis occurred under conditions where the intracellular ATP levels were lowered. Data are presented which suggest that stage (b) is mediated by in influx of Ca2+ into the cell when the levels of ATP are low. Interestingly the phosphllipase from Naja naja venom (Pakistan) yielded results similar to those observed with the basic enzyme from Agkistrodon venom. However, the enzyme from Crotalus adamanteus and the acidic enzyme also present in the Agkistrodon venom produced only slight hydrolysis or hemolysis under any of the conditions studied. Other species of erythrocytes, e.g., guinea pig, monkey, pig, and rat, were tested but only those from guinea pig behaved similarly to the human cells. Pig, monkey, and rat erythrocytes underwent very limited hydrolysis and hemolysis. It is evident that the use of these phospholipases to probe the localization of phospholipds in erythrocyte membranes must be approached with caution. Certain facets of this problem are discussed.
Re: chem abstr
Всем огромное спасибо за помощь!
На другой ветке форума нашли ее!!!
A. Petrov, F.L. Maklyaev, Korshunov M.A. Chlorides of esters of phosphonocarboxilic acids II. P,P Dichlorides of phosphonocarboxylic acids esters // ЖОХ. 1959. Т. 29 С. 584
вот эта статья нужна была!
На другой ветке форума нашли ее!!!
A. Petrov, F.L. Maklyaev, Korshunov M.A. Chlorides of esters of phosphonocarboxilic acids II. P,P Dichlorides of phosphonocarboxylic acids esters // ЖОХ. 1959. Т. 29 С. 584
вот эта статья нужна была!
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