Proceedings of 1994 20th Annual Northeast Bioengineering Conference最新文献_第4页

Parallel grading of venous beading on transputer 计算机上静脉串珠平行分级

Proceedings of 1994 20th Annual Northeast Bioengineering Conference Pub Date : 1994-03-17 DOI: 10.1109/NEBC.1994.305177

Tien-You Lee, H.D. Cheng

引用次数: 2

Simulation of tissue resistivity behavior using a finite difference based model 用有限差分模型模拟组织电阻率行为

Proceedings of 1994 20th Annual Northeast Bioengineering Conference Pub Date : 1994-03-17 DOI: 10.1109/NEBC.1994.305153

S. Rao, S. Kun, R. Peura

引用次数: 1

Caprine model for evaluation of pulmonary artery catheters 评价肺动脉导管的山羊模型

Proceedings of 1994 20th Annual Northeast Bioengineering Conference Pub Date : 1994-03-17 DOI: 10.1109/NEBC.1994.305191

S. Dubin, W. Shi, K. Dejneka, M. Victor, V. Freeman

引用次数: 0

Recreating neural oscillators in VLSI 在VLSI中重建神经振荡器

Proceedings of 1994 20th Annual Northeast Bioengineering Conference Pub Date : 1994-03-17 DOI: 10.1109/NEBC.1994.305175

S. Wolpert

引用次数: 2

Intracellular recording of He-Ne laser effect on motoneuron action potential duration in crayfish He-Ne激光对小龙虾运动神经元动作电位持续时间的细胞内记录

Proceedings of 1994 20th Annual Northeast Bioengineering Conference Pub Date : 1994-03-17 DOI: 10.1109/NEBC.1994.305162

M. Merris

引用次数: 0

Nerve fiber stimulation threshold for multiphase stimuli 多相刺激的神经纤维刺激阈值

Proceedings of 1994 20th Annual Northeast Bioengineering Conference Pub Date : 1994-03-17 DOI: 10.1109/NEBC.1994.305174

S. Beecroft, A. Alkhateeb, R. Gaumond

引用次数: 3

A field potential analysis study of the effects of prenatal protein malnutrition on maturation of the dentate granule cell response 产前蛋白质营养不良对齿状颗粒细胞成熟反应影响的场电位分析研究

Proceedings of 1994 20th Annual Northeast Bioengineering Conference Pub Date : 1994-03-17 DOI: 10.1109/NEBC.1994.305161

J. Blaise, J. Bronzino

{"title":"A field potential analysis study of the effects of prenatal protein malnutrition on maturation of the dentate granule cell response","authors":"J. Blaise, J. Bronzino","doi":"10.1109/NEBC.1994.305161","DOIUrl":"https://doi.org/10.1109/NEBC.1994.305161","url":null,"abstract":"Unlike the vast majority of cells making up the rat central nervous system, the granule cell population of the hippocampal dentate gyrus develops primarily after birth. Only about 20% of these cells are in place at the time of birth, with the remaining 80% reaching functional maturity by around 30 days of postnatal development. This relatively unique developmental pattern provides an opportunity to assess the impact of insults encountered during the gestational period on the subsequent development and maturation of a brain structure intimately involved in such fundamental processes as spatial navigation, learning, and memory. In addition, the morphology of the hippocampal dentate gyrus, with its laminated arrangement of densely packed cell bodies and specifically oriented apical and basilar projections, provides a structure well-suited to electrophysiological characterization employing field potential analysis. The present study was undertaken to examine the impact of prenatal protein malnutrition on the development of neuronal transmission across the perforant path-dentate granule cell synapse of the hippocampal formation in freely moving rats as they matured from 15 to 30 days of age.<<ETX>>","PeriodicalId":117140,"journal":{"name":"Proceedings of 1994 20th Annual Northeast Bioengineering Conference","volume":"9 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123691707","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

Laser detection of cardiovascular pulsation 激光检测心血管搏动

Proceedings of 1994 20th Annual Northeast Bioengineering Conference Pub Date : 1994-03-17 DOI: 10.1109/NEBC.1994.305178

H. Hong, M. Fox

引用次数: 1

Heart rate variability in stroke population and normals: a comparison using spectral analysis 中风人群和正常人的心率变异性:使用频谱分析的比较

Proceedings of 1994 20th Annual Northeast Bioengineering Conference Pub Date : 1994-03-17 DOI: 10.1109/NEBC.1994.305190

K. Seshadri, S. Reisman, M. Daum, R. Zorowitz, R. Demeersman

{"title":"Heart rate variability in stroke population and normals: a comparison using spectral analysis","authors":"K. Seshadri, S. Reisman, M. Daum, R. Zorowitz, R. Demeersman","doi":"10.1109/NEBC.1994.305190","DOIUrl":"https://doi.org/10.1109/NEBC.1994.305190","url":null,"abstract":"Frequency-domain spectral analysis was used to examine the effect of the parasympathetic division of the autonomic nervous system on heart rare in normal healthy subjects and stroke patients. Stroke survivors are at increased risk for cardiac events such as myocardial infarction and sudden death. Evidence suggests that decrease in heart rate variability (HRV) is a risk factor for arrhythmias and sudden death. Data were analyzed from normal healthy subjects and stroke patients during rest, paced breathing, progressive exercise and recovery periods, which caused changes in the autonomic regulation of heart rate. After analysis data were compared to see changes in the parasympathetic function in normal subjects and stroke patients. One significant peak (respiration peak) in the heart rate variability spectrum was examined by this technique. The area of the peak at the respiration frequency showed parasympathetic changes. During rest the parasympathetic activity was found to be high. Paced breathing increased the respiration frequency peak and during progressive exercise. The parasympathetic activity was found to decrease. Stroke patients were found to have significantly lower parasympathetic input to HRV at rest, during paced breathing and during exercise. The use of this technique enables one to explore and examine the autonomic contributions to heart rate regulation and also other physiological and environmental conditions where the input to the autonomic nervous system changes significantly.<<ETX>>","PeriodicalId":117140,"journal":{"name":"Proceedings of 1994 20th Annual Northeast Bioengineering Conference","volume":"2004 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123768075","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: 1

Use of contrast agents in ultrasound 超声造影剂的使用

Proceedings of 1994 20th Annual Northeast Bioengineering Conference Pub Date : 1994-03-17 DOI: 10.1109/NEBC.1994.305167

K. Shahnazi, M. Fox

引用次数: 18