Current sovietbiology and world science     

George Obolensky Ing. Agr.  BSc.  MSc.  Dr. Ing.  DSc. 《Plant foods for human nutrition (Dordrecht, Netherlands)》1958,5(1-2):158-166

Conclusion The protest against Michurinism, from non-Russian countries, has been on three main grounds: that his scientific theories are unconvincing; that the intrusion of political influence into scientific controversy is unjustifiable; and that the treatment meted out to his defeated opponents has included imprisonment and death.Modern genetics has grown through the work ofCorrens, Goldschmidt, Muller, Darlington, Haldane and many others, and today many aspects of it are thoroughly permeated with physiological and dynamic thinking.Lysenko, however, still attacks it on the old lines, using arguments form the pregenetical days ofDarwin as well as those produced byMichurin, Timirtazey, etc. who first criticized it. Lysenko's claim that heredity can be altered by external influences either by submitting the organism to altered conditions, or by grafting one type of plant to another, when the stock and graft are said to influence each other's hereditary qualities, may be looked upon as a scientific novelty.Neither of these two parts is easy to accept.Graft hybridization is a problem with a long history. Nearly all alleged cases in the past have turned out to be misinterpretations; but there is no doubt that viruses and some proteins can be transmitted in this way and act and cause the observed results. It is possible though not yet acceptable as proven, thatLysenko is on to something in this obscure and not fully understood field. But even if this be so, there seems no reason whatever to believe that this results could overthrow classical genetics, though he might conceivably represent an addition, even quite an important addition, to it.Thus it becomes clear that the gap between Michurinites and Neo-Mendelists does not appear to be absolute, and may be further narrowed as reliable evidence becomes more readily available to both groups.  相似文献   

Etude sur l'extraction de la vanille par les ultra-sons     

Georges Obolensky Ing. Agr.  BSc  MSc  Dr. Ing.  DSc. 《Plant foods for human nutrition (Dordrecht, Netherlands)》1959,5(4):344-366

Summary In view of a preliminary investigation of liquid-solid extraction by means of Ultra-sonic waves, the effects of 300, 500 and 2000 kHz insonation was tried, using 50° alcohol and vanilla beans.The experimental results were calculated on a 12 hours extraction base, with a 250 ml Kumagawa.Our experiments have shown that an extraction efficiency of 94%, after 12 min. insonation, can be obtained, but that this efficiency seemed, in our particular case, to be closely correlated with the moisture content of the sample.Besides, the classical extraction in a Kumagawa showed, that such acquired caracters, as increased percentage in vanillin and oleoresines obtained after an ultrasonic irradiation remained stable.

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Zusammenfassung Ein Versuch wurde angestellt, Vanille-Extraktion mit Hilfe von Ultraschallwellen durchzuführen.Frequenzen von 300, 500 und 2000 kHz mit Intensitäten von 3,4–13 W/cm² und Extraktionsdauer, von 3–12 Min., wurden dazu verwendet.Die erzielten Ergebnisse haben deutlich gezeigt, dass unter günstigen Versuchsbedingungen, nach 12 min. Beschallung 94% einer klassischen Extraktion von 12 Stunden mit dem Apparat nachKumagawa, erzielt werden kann.Es scheint jedoch, dass in diesem besonderen Falle die Wirksamkeit der Extraktion vom Feuchtigkeitsgehalt des Vanillenmusters abhängt.Von grossem Interesse ist der Befund, dass der erhöhte Vanillinund Oelsubstanzen-(Oleoresine) Gehalt, der beschallten Vanille-schoten, stabil ist.Hiermit werden neue und interessante Entwicklungsmöglichkeiten dieser neuen Wissenschaft in der Zukunft eröffnet.

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THE ISOLATION OF EPHEMERAL FEVER VIRUS FROM MOSQUITOES IN AUSTRALIA   总被引：1，自引：0，他引：1  

T. D. ST. GEORGE  M.V.Sc.    H. A. STANDFAST  BSc.  A. L. DYCE  B.Sc.Agr. 《Australian veterinary journal》1976,52(5):242-242

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Activation des processus fonctionnels (métaboliques et enzymatiques) de l'orge,par les Ultra-Sons     

Dr. Georges Obolensky Ing. Agr.  BSc  MSc  Dr. Ing.  DSc. 《Plant foods for human nutrition (Dordrecht, Netherlands)》1957,2(4):298-335

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Comparative analgesic and cardiopulmonary effects of bupivacaine and ropivacaine in the epidural space of the conscious dog   总被引：1，自引：0，他引：1  

Tanya Duke BVetMed DVA Dip ACVA Dip ECVA  Nigel A Caulkett Dvm MVetSc Dip ACVA    Stephanie D. Ball BSc    Audrey M Remedios Dvm MVetSc Dip ACVS 《Veterinary anaesthesia and analgesia》2000,27(1):13-21

Objective To compare the cardiopulmonary effects and sensory blockade of epidural bupivacaine and ropivacaine. Study Design Prospective randomized study. Animals Six young adult medium‐sized crossbred dogs weighing 25.7 ± 7.1 kg. Method Dogs were chronically implanted with a lumbosacral epidural catheter. Acepromazine sedated dogs received all treatments: 0.5% bupivacaine at 0.14 mL kg^?1 (LB5) or 0.22 mL kg^?1 (HB5); 0.5% ropivacaine at 0.14 mL kg^?1 (LR5) or 0.22 mL kg^?1 (HR5); 0.75% bupivacaine at 0.22 mL kg^?1 (HB7.5) or 0.75% ropivacaine at 0.22 mL kg^?1 (HR7.5). Loss of sensation was tested at the level of the perineum, hind toe webs, flank, and caudodorsal rib areas before injection, and post‐injection (PI) up to 150 minutes PI. Systemic arterial blood pressure and heart rate were recorded before injection, and every 10 minutes PI until 150 minutes PI. Arterial blood gas analyses were performed prior to injection, and at 30, 60 and 150 minutes PI. Results No statistical differences existed between groups for the cardiopulmonary data or time to onset of block. Group HR7.5 had lower systolic (10–70 minutes PI) and diastolic (10–70 minutes PI) blood pressures and group HR5 had lower mean (10–90 minutes PI) and diastolic (10–90 minutes PI) blood pressures compared to baseline. Heart rate was lower compared to baseline in groups LR5 and HB7.5. A significant, but mild metabolic acidosis developed in groups LR5 and HB7.5 (150 minutes PI). No differences were present for the duration of block between groups, but duration of block in the dorsocaudal rib area was shorter in group HR5 compared to HR7.5. Conclusion Epidural ropivacaine and bupivacaine at the doses used have mild effects on the cardiopulmonary system, and extent of block are similar. Clinical Relevance The 0.75% concentration of bupivacaine and ropivacaine at 0.22 mL kg^?1 appeared to contribute to greater success of block (>80%) at dermatomes L₅–L₇.  相似文献   

Small Animal Soft Tissue Surgery ‐ Edited by Eric Monnet     

Robert N White BSc BVetMed CertVA DSAS DipECVS MRCVS 《The Journal of small animal practice》2014,55(1):E2-E3

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Evaluation of Steam Penetration and Sterilization of Natural Latex Wraps     

Matteo Rossanese DVM  James Gasson  Colin Barker BSc  PhD  PGCMP  Kelly Bowlt BVM&S  Diplomate ECVS 《Veterinary surgery : VS》2014,43(8):1009-1013

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Effect of Experience on Adrenocortical and Thyroid Responses of Arabian Horses to Gymkhana Games     

Esterina Fazio  Pietro MedicaCristina Cravana  DVM  PhD  Piergiorgio MolinariAdriana Ferlazzo  BSc  MSc  PhD 《Journal of Equine Veterinary Science》2014

Gymkhana is an equestrian event consisting of speed pattern racing and timed games for riders on horses. The aim of the study was to evaluate the effects of gymkhana competition on total cortisol and total and free iodothyronine changes in 23 Arabian purebred horses, by taking into account the effects of previous sport experience on gymkhana riding events. Compared with pre-competition values, an increase of total cortisol concentration has been observed in experienced horses at 30 minutes (P < .001) after exercise and in inexperienced horses both at 5 minutes (P < .05) and at 30 minutes (P < .01) after exercise. Compared with pre-competition values, an increase of total triiodothyronine (T₃) concentration has been observed in experienced horses at 5 minutes (P < .05) after exercise. Data obtained showed that gymkhana riding events induced differential adrenocortical and thyroid responsiveness according to previous experience of sport horses. Hence, cortisol and iodothyronine patterns may provide additional information for the monitoring of gymkhana riding performance.  相似文献   

Diagnostic accuracy of the SNAP and Spec canine pancreatic lipase tests for pancreatitis in dogs presenting with clinical signs of acute abdominal disease     

Mark D. Haworth BVSc  Giselle Hosgood BVSc  MS  PhD  DACVS  Katrin L. Swindells BVSc  DACVECC  Caroline S. Mansfield BSc  BVMS  PhD  DECVIM 《Journal of Veterinary Emergency and Critical Care》2014,24(2):135-143

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Progression of plasma D‐dimer concentration and coagulopathies during hospitalization in horses with colic     

Carla Cesarini DVM  MSc  DACVIM  DECEIM  Luis Monreal DVM  PhD  DECEIM  Lara Armengou DVM  PhD  DECEIM  M. Ángeles Delgado DVM  PhD  José Ríos BSc  MSc  Eduard Jose‐Cunilleras DVM  PhD  DACVIM  DECEIM 《Journal of Veterinary Emergency and Critical Care》2014,24(6):672-680

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