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Search Results: 1 - 10 of 306057 matches for " Zahyda G.F. Palacios "
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Actividad antifúngica in vitro de extractos crudos de Piper tuberculatum In vitro antifungal activity of crude extracts of Piper tuberculatum
Zahyda G.F. Palacios,Guillermo E. Delgado,Mario C. Moreno,Massuo J. Kato
Revista Peruana de Biología , 2011,
Abstract: En la medicina tradicional Peruana Piper tuberculatum Jacq. (Piperaceae) es utilizado en humanos y animales domésticos como antiinflamatorio y desinfectante de heridas. Piper tuberculatum contiene las amidas isobutílicas, pirrolidina, dihidropiridona y piperidina. El objetivo de este trabajo fue investigar la actividad antifúngica de los extractos crudos de inflorescencias, hojas y tallos de plantas silvestres, obtenidos con CH2Cl2:MeOH (2:1), EtOH y decocción y de plantas in vitro obtenido con CH2Cl2:MeOH (2:1). Los extractos crudos exhibieron actividad antifúngica sobre Trichophyton rubrum, Microsporum canis y M. gypseum. La concentración inhibitoria mínima (CIM) observada con los extractos CH2Cl2:MeOH (2:1), EtOH y decocción, sobre Trichophyton rubrum, Microsporum canis y M. gypseum fue 0,1 mg/mL para inflorescencias y hojas, y 0,1 a 0,5 mg/mL para tallos. En plantas in vitro la inhibición en el crecimiento de T. rubrum y M. canis fue 100% en 0,5 mg/mL y para M. gypseum fue 95% en 1,5 mg/mL de concentración. Piper tuberculatum Jacq. (Piperaceae) is used in traditional Peruvian medicine as anti-inflammatory and disinfectant of wounds in humans and domestic animals. This species contains amides bearing isobutyl, pyrrolidine, dihydropyridone and piperidine moieties. The aim of this work was to investigate antifungal activity of crude extracts from the spikes, leaves and stems of wild plants extracted with CH2Cl2:MeOH (2:1), EtOH, decoction, and in vitro plants extracted with CH2Cl2:MeOH (2:1). The crude extracts showed antifungal activity on Trichophyton rubrum, Mycosporum canis y M. gypseum. The minimum inhibitory concentration (MIC) observed with CH2Cl2:MeOH (2:1), EtOH and decoctions extracts against T. rubrum, M. canis and M. gypseum was 0,1 mg/mL for spikes and leaves, and 0,1 to 0,5 mg/mL for stems. The inhibition of growth using in vitro plants on T. rubrum and M. canis was 100% in 0,5 mg/mL, and 95% on M. gypseum 95% using 1,5 mg/mL of concentration.
The occurrence of black corals in Jamaican reef environments, with special reference to Stichopathes lutkeni (Antipatharia:Antipathidae)
Revista de Biología Tropical , 2005,
Abstract: the purpose of this study was to record the species of antipatharia on jamaican reefs and to carry out limited studies on densities and sizes of the common species.in addition,a cliff face created by dredging in 2002 provided the opportunity to study growth of newly settled colonies.observations since 1998 and measurements since 2001 were made using scuba at depths down to 35 m.seven species of antipatharia were observed on steep coral reef escarpments below 25 m depth.the commonest species was the unbranched "wire coral " stichopathes lutkeni .other common species included the fan-shaped black corals antipathes atlantica and a. gracilis .frequently encountered species included commercially important a.caribbeana and a species with an unusual,scrambling growth form, a. rubusiformis.the other major commercial species in the caribbean, plumapathes pennacea ,and a cave-dwelling species,a.umbratica ,were rarely observed.greatest black coral abundance occurred on steep slopes of hard substrata in low light intensity but exposed to the long-shore current. combined densities of the commoner antipatharia at 30 m deep at rio bueno on the north coast,ranged from 0.1 to 2.5 m-2 (eleven 10 m x 1 m belt transects,1-25 colonies per transect,68 colonies in total).forty-six of the 68 colonies were s.lutkeni ,while nearby at discovery bay at 30-35 m,55 out of 59 colonies were s.lutkeni. there was a significant difference between the mean length of colonies in these two populations of s.lutkeni (100 cm and 80 cm,respectively),probably relating to habitat.a third population of s.lutkeni growing at 15-20 m deep on the recently dredged cliff had a much smaller mean length of 36.6 cm (n=27).the largest individual measured 83 cm long,indicating a minimum growth rate of the unbranched corallum of 2.1 mm per day.
Intracardiac thrombosis in the Cape Mountain Zebra
G.F. Bath
Koedoe : African Protected Area Conservation and Science , 1975, DOI: 10.4102/koedoe.v18i1.921
Abstract: The Cape mountain zebra (Equus zebra zebra) is one of the rarest species of mammals in South Africa, and is threatened with extinction. At present there are less than 200 in existence, of which approximately 160 occur in the Mountain Zebra National Park near Cradock. Because of the rarity of the species and the undesirable concentration of the majority in an area of only 6 536 ha, a post-mortem examination is performed, if possible, on all animals to establish cause of death with the purpose of preventing large-scale mortalities. This is done even if the carcass is in a fairly advanced state of decomposition. Amongst the examinations so performed were two zebra which were believed to have died as a result of intraventricular thrombosis. The rarity of this condition and of the Cape mountain zebra makes a report on these cases necessary.
Professor Dr. Pangeran Ario Hoesein Djajadiningrat. 8 december 1886-12 november 1960
G.F. Pijper
Bijdragen tot de Taal-, Land- en Volkenkunde , 1961,
“Om die Bybel sensitief en in sy rykdomte lees” – in gesprek met Amie van Wyk
G.F. Snyman
In die Skriflig , 2010, DOI: 10.4102/ids.v44i3&4.171
Abstract: “To read the Bible sensitivelyand in its richness” – in conversation with Amie van Wyk In response to Prof. J.H. van Wyk’s review of Gerrie Snyman’s book “Om die Bybel anders te lees: ’n etiek van Bybellees” (2007) the author proposes thatthe issue is contextuality, neccesitated the moment the human aspect rears its head in the process of reading the Bible. Contextuality is juxtaposed with an objectivist approach. The article also inquires into as- pects of rationality, Pneumatology, Christology and the theologi- cal justification of apartheid together with the theological justifi- cation of keeping women in the RCSA from the offices of elder and minister as a test case for reading the Bible differently.
’n Etiek van Bybellees en ’n hermeneutiek van weerloosheid
G.F. Snyman
In die Skriflig , 2011, DOI: 10.4102/ids.v45i2&3.15
Abstract: An ethics of reading the Bible and a hermeneutics of vulnerability On the basis of Van der Walt’s (2008) proposal regarding an approach towards Scripture, the author proposes a hermeneutics of vulnerability that aims to facilitate a Bible reading process “with” people and no longer “for” people. Such a hermeneutic will enable the Bible reader to take into account the effect a particular explanation of Scripture will have on people for which he or she need to take responsibility. In the ensuing discussion, firstly, the author looks at the way people are being made destitute by a particular reading of the Bible, and secondly, discusses how a hermeneutic of vulnerability reveals such a vulnerableness.
Histomorphometrical estimation of the organism hyperhydratation influence on bone tissues condition in young animals
Tkach G.F.
Морфолог?я , 2008,
Abstract: The purpose of the study - basing on morphological analysis to estimate the particularities of structural organization of proximal cartilage epiphysis of the shoulder bones in young animals, which were exposed to hyperhydratation conditions. According to comparative aspect, investigation of histomorphometrical parameters of bone tissue in young animal, that were exposed to water intoxication, was accompanied with oppression of bone formation, namely - narrowing of the proliferation zone (on 3,36 - 6,24%) and reduction in osteoblasts amount (3,33 - 5,37%). The other investigated parameters, change only because of the changes in above-mentioned parameters.
Mixed cryoglobulinemia … and related conditions
G.F. Pasero
Reumatismo , 2011, DOI: 10.4081/reumatismo.2001.101
Abstract: Nella primavera 1973 si ricoverò nel nostro reparto una donna sulla cinquantina, in cui, per la contemporanea presenza di artralgie, aumento degli indici di flogosi e fattore reumatoide, era stata sospettata un’artrite reumatoide. Non fu difficile escludere tale sospetto: le artralgie erano limitate agli arti inferiori e non vi erano segni obiettivi di flogosi articolare, mentre dai ginocchi in giù si notava una discromia giallo-brunastra, esito di ripetuti episodi di porpora ortostatica. Queste reperto ci richiamò alla mente la crioglobulinemia mista (CM), un’affezione descritta da pochi anni (1), ancora poco nota e ritenuta piuttosto rara. Il riscontro di un precipitato nel siero conservato a bassa temperatura confermò questa ipotesi. Ricordo ancora quel senso di curiosità e di compiacimento che si prova quando si fa per la prima volta una diagnosi non banale. Nessuno di noi poteva però immaginare che quella diagnosi l’avremmo formulata tante altre volte - la nostra casistica supera ormai le 300 osservazioni - e che la CM sarebbe stata per tanti anni al centro dei nostri interessi di ricerca...
The Effect of Feeding an Extra Amounts of Arginine to Local Saudi Hens on Luteinizing Hormone Secretion
G.F. Basiouni
Journal of Biological Sciences , 2009,
Abstract: Twelve local Saudi hens 33 weeks old at their peak egg production were used to determine the effect of an extra 2% supplemental feeding of L-arginine on luteinizing hormone secretion. Hens were randomly assigned into two treatment groups, they were fed either an extra amount of 2% arginine diet (treated) or not (control). Serial bleeding started 2 days after the start of the experimental feeding. One milliliter of blood were collected every 20 min starting at 9 h before the expected time for oviposition until 1 h after oviposition for the measurement of luteinizing hormone level. The results showed that feeding a 2% extra amounts of arginine to local Saudi hens significantly (p<0.05) increased mean LH level during the 9-6 h before the time of oviposition in arginine treated (2.8±0.33 ng mL-1) compared to control group (1.9±0.18 ng mL-1). Mean LH surge amplitude was also found to be higher in arginine treated compared to control group. The onset of the preovulatory LH surge was found to start earlier (p<0.05) in arginine compared to control group (260±30, 335±25 min before the time of oviposition, respectively). No significant differences were found between the two groups in the preovulatory LH surge duration. Further studies are needed to examine the effect of feeding an extra amounts of arginine on LH secretion and egg production in commercial breeds of hens.
Observations on some cardiopulmonary effects of midazolam, xylazine and a midazolam / ketamine combination in the goat
G.F. Stegmann
Journal of the South African Veterinary Association , 2012, DOI: 10.4102/jsava.v70i3.771
Abstract: Xylazine, midazolam and a midazolam / ketamine combination were administered to 6 goats in a randomised 3-way block design. All goats received all treatments with at least a 7-day interval between treatments. Statistically significant (P < 0.05) changes were observed in some of the measured cardiopulmonary variables for xylazine and midazolam/ ketamine. Xylazine administration resulted in statistically significant decreases in minute volume, arterial partial pressure of oxygen, heart rate andmeanarterial blood pressure. The increase in arterial partial pressure of carbon dioxide was not statistically significant. For the midazolam / ketamine combination, the decrease in tidal volume was statistically significant, but not the decrease in minute volume and increase in arterial partial pressure of carbon dioxide. The decrease in the arterial partial pressure of oxygen was also statistically significant. The mean arterial blood pressure for the combination was statistically significantly higher compared to xylazine. The changes in cardiopulmonary variables after midazolam administration were not statistically significant, such as tidal and minute volume, arterial partial pressure of oxygen and carbon dioxide. However, clinically significant effects such as hypoventilation and hypoxia were observed after its administration. The change in mean arterial blood pressure was minimal.
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