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Biorheology. Supplement : the official journal of the International Society of Biorheology最新文献

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Rheological behavior of blood platelets in vivo. 血小板在体内的流变行为。
Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s126
D W Slaaf, G J Tangelder, R S Reneman
{"title":"Rheological behavior of blood platelets in vivo.","authors":"D W Slaaf,&nbsp;G J Tangelder,&nbsp;R S Reneman","doi":"10.3233/bir-1984-23s126","DOIUrl":"https://doi.org/10.3233/bir-1984-23s126","url":null,"abstract":"<p><p>Blood platelets labeled in vivo with the fluorochrome acridine red can be localized objectively within a thin optical section, using fluorescence microscopy. This allows the study of the rheological behavior of platelets in vivo as exemplified by the assessment of the concentration distribution and the orientation of platelets flowing in small arterioles of the rabbit mesentery.</p>","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"145-9"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s126","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17647985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Use of a laser-Doppler electrophoresis method in bacteriology (preliminary results). 激光多普勒电泳法在细菌学中的应用(初步结果)。
Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s154
J F Stoltz, C Janot, F Saur, M Weber, E Malher, C Duvivier
{"title":"Use of a laser-Doppler electrophoresis method in bacteriology (preliminary results).","authors":"J F Stoltz,&nbsp;C Janot,&nbsp;F Saur,&nbsp;M Weber,&nbsp;E Malher,&nbsp;C Duvivier","doi":"10.3233/bir-1984-23s154","DOIUrl":"https://doi.org/10.3233/bir-1984-23s154","url":null,"abstract":"<p><p>A new electrophoresis system using Laser Doppler velocimetry has been developed. This technic allows fast measurements, (1 minute) over a large number of particles (several thousand or more). Furthermore, the small size of the particles is no longer a limitation of the measurement. These qualities made it possible to study the electrokinetic properties of cells. In this paper the authors present the first application obtained on different types of bacteria (Staphylococcus aureus, Klebsiella pneumoniae, Escherichia coli, Proteus vulgaris) submitted to five antibiotics (gentamycin, minocyclin, cephalotin, spiramycin, sobramycin). After four hours of incubation at 37 degrees C, important decreases of electrophoretic mobility were observed on bacteria treated with antibiotics to which they were sensitive. On the other hand, no significant modification appeared on bacteria treated with antibiotics to which they were not sensitive. In conclusion, the electrophoretic mobility test seems to be useful to study the response of bacteria to antibiotics and perhaps could be used to set antibiograms.</p>","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"303-7"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s154","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17443633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Selected methods for the evaluation of the effects of drugs on mucus viscoelasticity and mucociliary clearance. 选择方法评价药物对黏液粘弹性和黏毛清除率的影响。
Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s123
A E Bell, S L James, C Marriott
{"title":"Selected methods for the evaluation of the effects of drugs on mucus viscoelasticity and mucociliary clearance.","authors":"A E Bell,&nbsp;S L James,&nbsp;C Marriott","doi":"10.3233/bir-1984-23s123","DOIUrl":"https://doi.org/10.3233/bir-1984-23s123","url":null,"abstract":"<p><p>In order to rationally test the efficacy of mucolytic and mucospissic compounds, their effects upon mucus viscoelasticity, ciliary beat frequency (c.b.f.) and total mucociliary transport rate (t.t.r.) must all be determined. Methods are described which allow the measurement of the viscoelastic modulii of small (10 microL) quantities of mucus, while c.b.f. and t.t.r. are determined using the frog palate model.</p>","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"127-30"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s123","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17392724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Small angle light scattering by large spheroids. Comparison with patterns from erythrocytes under shear. 小角度的光被大球体散射。剪切下红细胞形态的比较。
Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s151
J C Ravey, P Mazeron
{"title":"Small angle light scattering by large spheroids. Comparison with patterns from erythrocytes under shear.","authors":"J C Ravey,&nbsp;P Mazeron","doi":"10.3233/bir-1984-23s151","DOIUrl":"https://doi.org/10.3233/bir-1984-23s151","url":null,"abstract":"<p><p>The physical optics approximation has been used to compute small angle light scattering patterns from spheroids regarged as models for deformed red cells. According to their orientation, diagrams have been obtained whose fine structure can be very different from that resulting of the classical diffraction (existence of maxima and minima of intensity along the rings). Some experimental results for red cells suspensions under shear are shown which exhibit features very similar to the theoretical ones.</p>","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"287-90"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s151","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17647765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
The hematocrit-erythrocyte-disaggregation-apparatus (HEDA). 红细胞-红细胞分解仪(HEDA)。
Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s136
H Kiesewetter, C Mrowietz, H Lazar, F Jung
{"title":"The hematocrit-erythrocyte-disaggregation-apparatus (HEDA).","authors":"H Kiesewetter,&nbsp;C Mrowietz,&nbsp;H Lazar,&nbsp;F Jung","doi":"10.3233/bir-1984-23s136","DOIUrl":"https://doi.org/10.3233/bir-1984-23s136","url":null,"abstract":"<p><p>We have developed a device for the determination of the minimum shear force necessary to maintain complete disaggregation of erythrocytes and to simultaneously determine the hematocrit of blood samples (red cells in autologous plasma). A functional relationship between this shear force and the hematocrit was determined. The first derivative of the (measured) gamma Tmin as a function of the hematocrit was found to be identical (within limits) for all normal blood samples tested.</p>","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"213-5"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s136","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17647859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Assessment of erythrocyte deformability by constant flow filtration technique: analysis of factors influencing the initial pressure. 恒流过滤技术评价红细胞变形能力:初始压力影响因素分析。
Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s146
M T Chan, E Catry, D Weill, G A Marcel, C George
{"title":"Assessment of erythrocyte deformability by constant flow filtration technique: analysis of factors influencing the initial pressure.","authors":"M T Chan,&nbsp;E Catry,&nbsp;D Weill,&nbsp;G A Marcel,&nbsp;C George","doi":"10.3233/bir-1984-23s146","DOIUrl":"https://doi.org/10.3233/bir-1984-23s146","url":null,"abstract":"<p><p>When filtering red blood cells (RBC) resuspended into buffer at constant flow, the pressure-time curve is dependent on erythrocyte deformability (E.D) and also on the plugging of pores by RBC or leukocytes (WBC). To understand the influence of these 3 factors, we used an apparatus with: 1) a constant flow syringe (Bioblock) (1.56 ml/mn); 2) a pressure transducer (Statham P23 ID); 3) a recorder (Gould); 4) a 5 micron polycarbonate filter (Nuclepore) housed in a lucite block according to USAMI & al. (1). Resuspensions of RBC from 4 to 14% haematocrit with 0 to 600 WBC/mm3 were investigated. Results indicate that: 1/ The first inflexion point of the pressure-time curve (initial pressure leading to calculation of beta) is related to the RBC's deformability; 2/beta is (in our experimental conditions) dependent on the WBC number; 3/beta seems very sensitive to deformability changes as shown by rapid increases induced by osmolarity changes.</p>","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"267-70"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s146","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17647866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Automated apparatus for the filtration initial flow rate measurement. 用于过滤初始流量测量的自动化装置。
Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s148
M Hanss, D Koutsouris
{"title":"Automated apparatus for the filtration initial flow rate measurement.","authors":"M Hanss,&nbsp;D Koutsouris","doi":"10.3233/bir-1984-23s148","DOIUrl":"https://doi.org/10.3233/bir-1984-23s148","url":null,"abstract":"<p><p>A new version of the Hemorheometre is presented. The main improvements are: The measurements can be performed at constant temperature. The apparatus operation is automated. The accuracy of the apparatus is thus significantly increased.</p>","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"275-7"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s148","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17647867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
New methods in biorheology. Proceedings of the International Symposium held in Nancy, France, 17-18 August 1983. 生物流变学新方法。1983年8月17日至18日在法国南希举行的国际专题讨论会论文集。
Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01
{"title":"New methods in biorheology. Proceedings of the International Symposium held in Nancy, France, 17-18 August 1983.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"1-354"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17648306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Some mathematical and numerical methods for determination of behaviour law of blood. 测定血液行为规律的几种数学和数值方法。
Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s118
G Maurice, M Lucius, J F Stoltz
{"title":"Some mathematical and numerical methods for determination of behaviour law of blood.","authors":"G Maurice,&nbsp;M Lucius,&nbsp;J F Stoltz","doi":"10.3233/bir-1984-23s118","DOIUrl":"https://doi.org/10.3233/bir-1984-23s118","url":null,"abstract":"<p><p>The determination of a constitutive law of a fluid, the red blood can be obtained by fitting the parameters of a theorical law with experimental results. For an experience, several expressions can be agreed, each of them explain a particular property. The aim of my purpose is to describe some mathematical and numerical methods, in relation with two experiences, able to give the value of an unknown quantity by computation and to fit it with measured quantity. The first method use finite element to modelize a couette nonlineer flow. It can be approach by a very simple model using only the computation of a nonlinear differential equation. The second use the perturbation method and the expansion in power serie.</p>","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"107-10"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17648308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative interest of two coaxial viscometers: ecktacytometer and low shear 30. 两种同轴粘度计的比较兴趣:粘度计和低剪切30。
Biorheology. Supplement : the official journal of the International Society of Biorheology Pub Date : 1984-01-01 DOI: 10.3233/bir-1984-23s115
J C Adjizian, C Droulle, G Osterman, B Pignon, G Potron
{"title":"Comparative interest of two coaxial viscometers: ecktacytometer and low shear 30.","authors":"J C Adjizian,&nbsp;C Droulle,&nbsp;G Osterman,&nbsp;B Pignon,&nbsp;G Potron","doi":"10.3233/bir-1984-23s115","DOIUrl":"https://doi.org/10.3233/bir-1984-23s115","url":null,"abstract":"<p><p>We have studied some rheological parameters in different clinical status by using two coaxial viscometers. The Contraves Low Shear sinus 30 allows available shear rates range from gamma (128s-1 to 0,0175 s-1), and the parameters studied were viscoelastiticy, thixotropy and blood viscosity. The Ecktacytometer+ is another method for measuring cell deformation in couette flow. The aim of our study was to compare these two technics, to consider their clinical interest and finally to visualize an eventual correlation.</p>","PeriodicalId":79205,"journal":{"name":"Biorheology. Supplement : the official journal of the International Society of Biorheology","volume":"1 ","pages":"95-7"},"PeriodicalIF":0.0,"publicationDate":"1984-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.3233/bir-1984-23s115","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17648721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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