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Tytuł:
Działanie toksyczne nowych dwuacylohydrazyn i arylohydrazydów kwasów karboksylowych na muchę domową (Musca domestica L.)
The toxic action of new diacylhydrazines and arylhydrazides of carboxylic acids on Musca domestica L.
Toksicheskoe dejjstvie novykh diacilgidrazinov i arilgidrazinov karboksilovykh kislot na domashhnjuju mukhu (Musca domestica L.)
Autorzy:
Grzywacz, M.
Powiązania:
https://bibliotekanauki.pl/articles/839242.pdf
Data publikacji:
1967
Wydawca:
Polskie Towarzystwo Parazytologiczne
Opis:
The effect of 20 new hydrazine derivatives on Musca domestica was determined by topical application method. As standard hydrazides of the cyanoacetic and isonicotinic acids as well as hexochlorocyclohexane (BHC with isomer γ contents 99-100%, m.p. 112-113°) and dichlorodiphenyltrichloroethane (DDT, m.p. 107-109°) produced by Chemical Plants "Azot" Jaworzno were used. It was stated that among 20 new compounds only 5 acted as insecticides on adult M. domestica individuals viz. N-cyanoacetyl-N'-hippurylhydrazine, phenylhydrazide of methyl ester of succinic acid, phynelhydrazide-N-propylamide of succinic acid, o-nitrophenylhydrazide of isonicotinic acid, p-bromophenylhydrazide hydrochloride of isonicotinic acid (Table 3). Their action on the third - rate larvas of M. domestica was evaluated by modified Gliwic method; determinations were repeated twice with three different compound concentrations, the mortal doses 50% were calculated according to Kadłubowski. It was found that larva-killing effect showed the o-nitrophenylhydrazide of isonicotinic acid only; lindane acted on larvas a little weaker. None of investigated new or standard compounds showed egg-killing activity (Table 3). Special consideration deservs the o-nitrophenylhydrazide of isonicotinic acid in spite of its weaker activity on adult M. domestica individuals than DDT, it is remarkably less toxic for vertebrates (white mouse LD₅₀ = 403 ± 25 mg/kg), its larva-killing action is more stronger than that of lindane.
Źródło:
Annals of Parasitology; 1967, 13, 4-5
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Działanie toksyczne nowych dwuacylohydrazyn i arylohydrazydów kwasów karboksylowych na muchę domową (Musca domestica L.)
The toxic action of new diacylhydrazines and arylhydrazides of carboxylic acids on Musca domestica L.
Toksicheskoe dejjstvie novykh diacilgidrazinov i arilgidrazinov karboksilovykh kislot na domashhnjuju mukhu (Musca domestica L.)
Autorzy:
Grzywacz, M.
Powiązania:
https://bibliotekanauki.pl/articles/2177889.pdf
Data publikacji:
1967
Wydawca:
Polskie Towarzystwo Parazytologiczne
Opis:
The effect of 20 new hydrazine derivatives on Musca domestica was determined by topical application method. As standard hydrazides of the cyanoacetic and isonicotinic acids as well as hexochlorocyclohexane (BHC with isomer γ contents 99-100%, m.p. 112-113°) and dichlorodiphenyltrichloroethane (DDT, m.p. 107-109°) produced by Chemical Plants "Azot" Jaworzno were used. It was stated that among 20 new compounds only 5 acted as insecticides on adult M. domestica individuals viz. N-cyanoacetyl-N'-hippurylhydrazine, phenylhydrazide of methyl ester of succinic acid, phynelhydrazide-N-propylamide of succinic acid, o-nitrophenylhydrazide of isonicotinic acid, p-bromophenylhydrazide hydrochloride of isonicotinic acid (Table 3). Their action on the third - rate larvas of M. domestica was evaluated by modified Gliwic method; determinations were repeated twice with three different compound concentrations, the mortal doses 50% were calculated according to Kadłubowski. It was found that larva-killing effect showed the o-nitrophenylhydrazide of isonicotinic acid only; lindane acted on larvas a little weaker. None of investigated new or standard compounds showed egg-killing activity (Table 3). Special consideration deservs the o-nitrophenylhydrazide of isonicotinic acid in spite of its weaker activity on adult M. domestica individuals than DDT, it is remarkably less toxic for vertebrates (white mouse LD₅₀ = 403 ± 25 mg/kg), its larva-killing action is more stronger than that of lindane.
Źródło:
Wiadomości Parazytologiczne; 1967, 13, 4-5; 399-404
0043-5163
Pojawia się w:
Wiadomości Parazytologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przeciwczerwiowe działanie niektórych glikoli
Antihelminthic action of some glycols
Protivoglistnoe dejjstvie nekotorykh glikolejj
Autorzy:
Kadlubowski, R.
Grzywacz, M.
Powiązania:
https://bibliotekanauki.pl/articles/836247.pdf
Data publikacji:
1964
Wydawca:
Polskie Towarzystwo Parazytologiczne
Opis:
The antihelminthic effect was determined in Enchytraeus sp. No 80 strain (20 helminths in 2 ml of 0.5% NaCl solution and 0.01 phosphate buffer at 7.4, room temperature, evaluation after 24 hours) and Ascaris lumbricoides suis (5 females in 200 ml of Ringer's solution in the case of thermolability, at 37°C, after 24 hours) and by kymography on the izolated preparation of Ascaris lumbricoides suis (Ringer's solution, 37°C, reaction within 10 minutes, calculated in relation to standard reaction taken as 100). DL₅₀ was calculated by own method (Wiad. Parazytol., 1961). It has been found that the strongest action on Enchytraeus is exerted by glycol methylene ether (DL₅₀ = 0.19±0.21 m) and piperazine adipinate (0.15 ± 0.63 m); twice weaker is the action of glycol ethylene ether, eight times weaker that of thylene and propylene glycols. In Ascaris lumbricoides the strongest antihelminthic action was exhibited by ethylene glycol ethyl ether (0.47 ± 0.01 m), twice weaker by methylene ether, 3-4 times weaker by ethylene and propylene glycols. Propylene glycol and methylene ether depressed the tonus of A lumbricoides preparation by 50% within 10 minutes at concentrations approaching lethal ones, whereas the remaining glycols acted twice weaker. Piperazine adipinate had neither killing action on the parasite nor depressing effect on the tonus of the preparation. The relative toxicity index (DL₅₀ for mouse: DL₅₀ for helminth) is the most favourable for propylene glycol (130), then for ethylene glycol (65), ethylene glycol ethyl (52) and methyl ether (30).
Źródło:
Annals of Parasitology; 1964, 10, 4-5
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przeciwczerwiowe działanie niektórych glikoli
Antihelminthic action of some glycols
Protivoglistnoe dejjstvie nekotorykh glikolejj
Autorzy:
Kadłubowski, R.
Grzywacz, M.
Powiązania:
https://bibliotekanauki.pl/articles/2179330.pdf
Data publikacji:
1964
Wydawca:
Polskie Towarzystwo Parazytologiczne
Opis:
The antihelminthic effect was determined in Enchytraeus sp. No 80 strain (20 helminths in 2 ml of 0.5% NaCl solution and 0.01 phosphate buffer at 7.4, room temperature, evaluation after 24 hours) and Ascaris lumbricoides suis (5 females in 200 ml of Ringer's solution in the case of thermolability, at 37°C, after 24 hours) and by kymography on the izolated preparation of Ascaris lumbricoides suis (Ringer's solution, 37°C, reaction within 10 minutes, calculated in relation to standard reaction taken as 100). DL₅₀ was calculated by own method (Wiad. Parazytol., 1961). It has been found that the strongest action on Enchytraeus is exerted by glycol methylene ether (DL₅₀ = 0.19±0.21 m) and piperazine adipinate (0.15 ± 0.63 m); twice weaker is the action of glycol ethylene ether, eight times weaker that of thylene and propylene glycols. In Ascaris lumbricoides the strongest antihelminthic action was exhibited by ethylene glycol ethyl ether (0.47 ± 0.01 m), twice weaker by methylene ether, 3-4 times weaker by ethylene and propylene glycols. Propylene glycol and methylene ether depressed the tonus of A lumbricoides preparation by 50% within 10 minutes at concentrations approaching lethal ones, whereas the remaining glycols acted twice weaker. Piperazine adipinate had neither killing action on the parasite nor depressing effect on the tonus of the preparation. The relative toxicity index (DL₅₀ for mouse: DL₅₀ for helminth) is the most favourable for propylene glycol (130), then for ethylene glycol (65), ethylene glycol ethyl (52) and methyl ether (30).
Źródło:
Wiadomości Parazytologiczne; 1964, 10, 4-5; 338-340
0043-5163
Pojawia się w:
Wiadomości Parazytologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sterol composition from inflorescences of Hieracium pilosella L.
Autorzy:
Gawronska-Grzywacz, M
Krzaczek, T.
Powiązania:
https://bibliotekanauki.pl/articles/58616.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
sterol composition
inflorescence
Hieracium pilosella
Compositae
phytosterol
Opis:
The fraction of sterol acetates from the inflorescences of Hieracium pilosella has been isolated in the typical way from petroleum ether extract. By means of the weight method the total amount of sterols was determined (0.2659%). The mixtures of sterol acetates and free sterols were investigated using GC-MS techniques. The occurrence of about 18 sterols has been observed. Cholesterol, cholest-8(14)-en-3b-ol, cholesta-5.7-dien-3b-ol, cholest-7-en-3b-ol, ergosta-5.24-dien-3b-ol, campesterol, stigmasterol, b-sitosterol, fucosterol, 5a-stigmast-7-en-3a-ol were identified. The probable structures of lophenol, isofucosterol, 5a-stigmasta-7.24-dien-3b-ol, lanosta-9(11).24-dien-3b-ol and 24-ethylidene lophenol were stated on the basis of literature data. The last 4 sterols occur in a vestigial quantity, which made its identification impossible. Sitos erol and cholesterol are remarkably dominating sterols in the fraction.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 1; 29-32
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Free and bound phenolic acids in inflorescences and rhizomes with roots of Hieracium pilosella L. [Asteraceae]
Autorzy:
Gawronska-Grzywacz, M
Krzaczek, T.
Powiązania:
https://bibliotekanauki.pl/articles/58360.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
free phenolic acid
bound phenolic acid
phenolic acid
inflorescence
rhizome
root
Hieracium pilosella
Compositae
Opis:
The analysis of the fractions of free and bound, liberated by hydrolysis, phenolic acids in the inflorescences and rhizomes with roots of Hieracium pilosella L. was conducted by 2D-TLC and RP-HPLC methods. In the inflorescences fourteen phenolic acids were found: chlorogenic, gallic, protocatechuic, homoprotocatechuic, caffeic, gentisic, p-hydroxyphenylacetic, p-hydroxybenzoic, m-hydroxybenzoic, p-coumaric, syringic, vanillic, ferulic and salicylic. In the rhizomes with roots nine phenolic acids were identified: chlorogenic, gallic, homoprotocatechuic, caffeic, gentisic, p- hydroxyphenylacetic, p-hydroxybenzoic, syringic and vanillic. By means of the RP-HPLC method the contents of major acids were estimated which ranged from 0.01 mg% up to 139.50 mg%. Caffeic acid is the remarkably dominating constituent of both plant materials. Phenolic compounds may contribute to invasiveness and medicinal properties of this species.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 215-218
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Flavonoids and coumarins from Hieracium pilosella L. [Asteraceae]
Autorzy:
Gawronska-Grzywacz, M
Krzaczek, T.
Powiązania:
https://bibliotekanauki.pl/articles/59337.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
weed
flavonoids
invasive weed
mouse-ear hawkweed
coumarin
herb
Compositae
Hieracium pilosella
Opis:
Typical chromatographic methods were successfully applied to isolate nine flavonoid compounds and two coumarin glycosides from the inflorescences and the herb of Hieracium pilosella L. Repeated column chromatography, occasionally paper chromatography and recrystallization made the separation of three flavonoid aglycones and six glycosides - possible. Coumarin glycosides were isolated by preparative thin layer chromatography. Subsequent UV, NMR and MS analyses have led to identification of the following flavonoid derivatives: known for the species - apigenin, luteolin, luteolin 7-O- ß-glucopyranoside, luteolin 4’-O-ß-glucopyranoside, isoetin 7-O-ß- -glucopyranoside, isoetin 4’-O-ß-glucuronide and new for the species – kaempferol 3-methyl ether and apigenin 7-O-ß-glucopyranoside. Third isoetin glycoside contained two different sugar moieties: xylose and glucose, probably attached to the hydroxyl groups at C-4’ or C-4’ and C-2’(or 5’) of an aglycone. Umbelliferone 7-O-ß-glucopyranoside (skimmin) and new for the genus Hieracium esculetin 7-O-ß-glucopyranoside (cichoriin) were determined by NMR and MS methods.
Źródło:
Acta Societatis Botanicorum Poloniae; 2009, 78, 3; 189-195
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przegląd wybranych topologii aktuatorów piezoelektrycznych
Review of chosen topologies of piezoelectric actuators
Autorzy:
Ryndzionek, R.
Sienkiewicz, Ł.
Szłabowicz, W.
Grzywacz, M.
Ronkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1372707.pdf
Data publikacji:
2011
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
piezoelektryczność
zjawisko piezoelektryczne
silnik piezoelektryczny
maszyna piezoelektryczna
aktuator piezoelektryczny
Opis:
The aim of this paper is to present the theoretical background, gather essential knowledge to further research and to build measurement stand for acquiring characteristics of piezoelectric motors. The fundamentals of piezoelectric phenomenon have been presented. Chosen topologies of piezo-actuators working in special applications (especially robotics, automotive industry and aeronautics) have been described. Special emphasis was put on traveling wave ultrasonic motors, high torque piezo-motors and multiple degrees of freedom novel piezo-motors. The automatic method of obtaining characteristics of piezoelectric actuators was presented. The main attributes of piezo-drives have been discussed.
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2011, 4, 92; 115-120
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phenolic compounds pattern in sweet clover (Melilotus officinalis) vs white clover (M. alba) revealed by 2D TLC (two-dimentional thin-layer chromatography) and its taxonomic significance
Skład związków fenolowych w nostrzyku lekarskim (Melilotus officinalis) w porównaniu z nostrzykiem białym (Melilotus alba) określona metodą dwukierunkowej chromatografii cienkowarstwowej (2D TLC) i jego znaczenie taksonomiczne
Autorzy:
Krzakowa, M.
Grzywacz, E.
Powiązania:
https://bibliotekanauki.pl/articles/71301.pdf
Data publikacji:
2010
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Opis:
Two closely related species: Melilotus alba and M. officinalis were compared in respect to chromatographically separated and visualized flavonoids. Several compounds were common for both species. Taking into account that phenolic compounds are genetically strictly controlled and not sensitive to environmental influences, the presence of characteristic compounds for each species confirmed their taxonomic values and differences.
Dwa blisko spokrewnione gatunki: Melilotus alba i M. officinalis porównano pod względem obecności związków fenolowych. Część z nich okazała się wspólna dla obu gatunków. Biorąc pod uwagę, że związki fenolowe są ściśle kontrolowane genetycznie, a ich skład w roślinie nie podlega wpływom środowiska, obecność plam charakterystycznych dla każdego z gatunków potwierdza ich odrębność taksonomiczną.
Źródło:
Herba Polonica; 2010, 56, 3
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 19

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