Pulmonary interstitial compliance and microvascular filtration coefficient

1980 ◽  
Vol 239 (2) ◽  
pp. H189-H198 ◽  
Author(s):  
H. S. Goldberg
Keyword(s):  
Dynamic Properties ◽  
Transpulmonary Pressure ◽  
Filtration Coefficient ◽  
Alveolar Pressure ◽  
Fluid Movement ◽  
Volume Relationship ◽  
Pressure Volume Relationship ◽  
Relationship Of ◽  
The Relationship

Static and dynamic properties governing the fluid movement into the pulmonary interstitium were examined in isolated canine lobes. The system was driven by altering intravascular presure (Piv) when the lobe was isogravimetric (change in weight (W) = 0) and allowing the lobe to become isogravimetric again. By making use of an analogy to charging a capacitor across a resistor, calculation of the filtration coefficient for transvascular fluid movement (KF) and determination of the pressure-volume relationship of the pulmonary interstitial space (Pis-Vis), with a minimum of untested assumptions, was possible. KF was found to be the same for fluid moving out of or into the intravascular space, and when the relationship between Piv and alveolar pressure (PAlv) was constant, KF was independent of transpulmonary pressure (PL). When PAlv exceeded Piv, changes in Piv did not influence KF, suggesting no significant change in either surface area available for fluid transudation or vascular permeability. The Pis-Vis curve for increasing values of Vis and Pis is best described by an exponential relationhip and is independent of PL. However, the Pis-Vis curve with decreasing values of Vis and Pis is dependent on PL.

Physiological features of the pressure-volume function of brain elasticity in man

1980 ◽  
Vol 53 (2) ◽  
pp. 166-172 ◽  
Author(s):  
Frederick H. Sklar ◽  
Chester W. Beyer ◽  
W. Kemp Clark
Keyword(s):  
Intracranial Pressure ◽  
Clinical Value ◽  
Content Type ◽  
Absorptive Capacities ◽  
Volume Relationship ◽  
Pressure Volume Relationship ◽  
Relationship Of ◽  
The Relationship ◽  
Infusion Technique ◽  
Elasticity Measurements

✓ The intracranial pressure-volume relationship of brain elasticity was examined in 20 patients with suspected disorders of the cerebrospinal fluid (CSF) system. Elasticity measurements were made as the patients were studied with a servo-controlled lumbar infusion technique to measure CSF absorptive capacity. The data were evaluated to determine the relationship between intracranial pressure (ICP) and volume, and between ICP variability and the level of ICP. The results confirm the exponential nature of the pressure-volume elasticity function in patients who are not critically ill. Eight of the 20 patients were shown to have normal CSF absorptive capacities, and there was no difference between their elasticity measurements and those of patients with absorptive defects. In addition, ICP variability was shown to be linearly related to the actual level of ICP. The physiological features of the pressure-volume elasticity function are reviewed. Based on these considerations, the clinical value and significance of elasticity measurements is questioned.

Calculating the aerodynamics of vertical axis wind turbines

2012 ◽  
Vol 34 (3) ◽  
pp. 169-184 ◽  
Author(s):  
Hoang Thi Bich Ngoc
Keyword(s):  
Wind Turbine ◽  
Incidence Angle ◽  
Vertical Axis ◽  
Rotor Blades ◽  
Vertical Axis Wind Turbine ◽  
Horizontal Axis Wind Turbine ◽  
Velocity Triangle ◽  
Relationship Of ◽  
The Relationship

Vertical axis wind turbine technology has been applied last years, very long after horizontal axis wind turbine technology. Aerodynamic problems of vertical axis wind machines are discussible. An important problem is the determination of the incidence law in the interaction between wind and rotor blades. The focus of the work is to establish equations of the incidence depending on the blade azimuth, and to solve them. From these results, aerodynamic torques and power can be calculated. The incidence angle is a parameter of velocity triangle, and both the factors depend not only on the blade azimuth but also on the ratio of rotational speed and horizontal speed. The built computational program allows theoretically selecting the relationship of geometric parameters of wind turbine in accordance with requirements on power, wind speed and installation conditions.

Tire Treadwear — A Comprehensive Evaluation of the Factors: Generic Type, Aspect Ratio, Tread Pattern, and Tread Composition Part I: Introduction and Details on the Organization of the Program

1986 ◽  
Vol 14 (4) ◽  
pp. 201-218 ◽  
Author(s):  
A. G. Veith
Keyword(s):  
Aspect Ratio ◽  
Comprehensive Evaluation ◽  
Test Method ◽  
Interactive Effects ◽  
Data Analyses ◽  
Main Effect ◽  
Systematic Determination ◽  
Relationship Of ◽  
The Relationship

Abstract This four-part series of papers addresses the problem of systematic determination of the influence of several tire factors on tire treadwear. Both the main effect of each factor and some of their interactive effects are included. The program was also structured to evaluate the influence of some external-to-tire conditions on the relationship of tire factors to treadwear. Part I describes the experimental design used to evaluate the effects on treadwear of generic tire type, aspect ratio, tread pattern (groove or void level), type of pattern (straight rib or block), and tread compound. Construction procedures and precautions used to obtain a valid and functional test method are included. Two guiding principles to be used in the data analyses of Parts II and III are discussed. These are the fractional groove and void concept, to characterize tread pattern geometry, and a demonstration of the equivalence of wear rate for identical compounds on whole tread or multi-section tread tires.

Knowledge management implementation in Indian automobile ancillary industries

2016 ◽  
Vol 11 (3) ◽  
pp. 802-810 ◽  
Author(s):  
Nitin Yashwant Patil ◽  
Ravi M. Warkhedkar
Keyword(s):  
Knowledge Management ◽  
Industrial Area ◽  
Total Quality ◽  
Limited Data ◽  
Interpretive Structural Modeling ◽  
Content Type ◽  
Relationship Of ◽  
Power And Dependence ◽  
The Relationship

Purpose In the past decade, much has been written about knowledge management (KM) in the manufacturing; however, less attention has been paid to the Indian automobile ancillary industries located in Chinchwad, Pune. It is suitable to find out the relationship of the factors of the study. It helps in identifying the hierarchy of factors to be taken, and interlinking of production department with KM improves the productivity of the industries. Categorization of these principles based on their driving power (principles which hold other principles) and dependence (principles which are dependent on other principles) has also been examined for KM implementation to study the driving power and dependence power of these principles. This paper aims to determine the roadmap of KM implementation and categorize KM principles based on their driving power for manufacturing industries with the use of the interpretive structural modeling (ISM)-based model. The results indicate that the principles possessing higher driving power, such as KM, inventory control, quality control, productivity and scheduling and their interlinking. The major contribution of this research lies in the development of contextual relationship among various identified factors of KM and determination of their driving and dependence power through a single systemic framework. Design/methodology/approach In this paper, author find out the suitability ISM for Indian Automobile industries to find the relation among the variables. Findings ISM model has been developed for the hierarchy of the identified KM. As ISM model results a hypothetical hierarchy which needs a proper quantitative analysis to evaluate their percentage effectiveness in the hierarchy. Research limitations/implications It is applied to automobile industries with limited number of variables that will show the dependence variable and driving variables and their interrelations. It can be applied other fields to fine the relationship of variables. Practical implications The ISM may be used in supply chain management and total quality management to find interlinking between the variables. Originality/value The limited data collected from Pimpri Chinchwad industrial area of Pune from Maharashtra state (India).

Еarly diagnosis of multiple sclerosis: experience with the use of class G oligoclonal immunoglobulin

2021 ◽  
Vol 26 (3) ◽  
pp. 34-39
Author(s):  
Z. A. Goncharova ◽  
Y. Y. Pogrebnova ◽  
N. M. Yarosh ◽  
S. M.M. Sehweil
Keyword(s):  
Multiple Sclerosis ◽  
Early Diagnosis ◽  
Literature Review ◽  
Demyelinating Disease ◽  
Mcdonald Criteria ◽  
Mri Features ◽  
Oligoclonal Igg ◽  
Relationship Of ◽  
The Relationship

The article presents the literature review and our experience in early diagnosis of multiple sclerosis based on the updated McDonald criteria of 2017. The study included 256 patients with clinic symptoms of probable idiopathic infl ammatory demyelinating disease, including rare and atypical forms of demyelination. As a result of the study the sensitivity and specifi city of the determination of oligoclonal immunoglobulin G in the population of Rostov-on-Don was described for the fi rst time, including dependence of the duration of the disease. The relationship of clinical and MRI features of the fi rst attack of the disease with the probability of determining oligoclonal IgG in the cerebrospinal fl uid is refl ected

The impact of the ESA 2010 on statistics of the general government sector

2015 ◽  
Vol 60 (11) ◽  
pp. 1-15
Author(s):  
Olga Leszczyńska-Luberek
Keyword(s):  
The European Union ◽  
Government Sector ◽  
General Government ◽  
European System ◽  
Relationship Of ◽  
The Impact ◽  
Methodological Guidelines ◽  
The Relationship ◽  
Excessive Deficit Procedure

The author presents the importance of the new European System of National and Regional Accounts (ESA 2010) for statistics of the general government sector. She pays particular attention to the development of data for the excessive deficit procedure. The article explains the methodological changes made to the studies in this field parallel to the ESA 2010. It discusses, among others, issues related to defining the deficit and debt of the general government, as well as the determination of a new way registering transfer of liabilities of pension schemes. It also presents the impact of new methodological guidelines for the relationship of deficit and debt to GDP in the Member States of the European Union.

scholarly journals Autonomy and Attachment in Relationships with Parents in the Context of Students’ Real Self-Determination

2021 ◽  
Vol 12 (1) ◽  
pp. 113-125
Author(s):  
D.A. Krasilo ◽  
T.A. Krassilo ◽  
A.N. Zalipaeva
Keyword(s):  
Inverse Relationship ◽  
Self Determination ◽  
Education Environment ◽  
Cognitive Autonomy ◽  
Positive Correlations ◽  
Almost All ◽  
Relationship Of ◽  
Real Self ◽  
The Relationship

Objectives. Studying the relationship of autonomy and attachment in relationships with parents with real self-determination in students. Background. The growing world globalization, intercultural contradictions, confrontation within society seriously complicate the path of self-determination of modern youth. At the same time, due to technical progress and digitalization of the communication and education environment, there are significant transformations in the interaction of people in almost all spheres, including in the family. Therefore, the question of studying the most important aspects in the relationship of young people with their parents for real self-determination is especially acute. Study design. The work studied the indicators of real self-determination, attachment to parents and autonomy among students. The presence of a relationship between these parameters was established by calculating the Spearman correlation coefficient. Participants. 60 college students aged 18 to 21. Measurements. Methodology “Scale of adult attachment for close relationships”; autonomy questionnaire (authors O.A. Karabanova and N.N. Poskrebysheva); questionnaire “ORS” (author D.A. Krasilo). Results. An inverse relationship of indicators of real self-determination of students with the level of intimacy and the level of anxiety (scales of attachment to parents) was established. A direct relationship was revealed between the indicators of real self-determination and the level of autonomy. Conclusions. Proximity and anxiety (components of attachment) have a significant inverse relationship with the level of real self-determination in students. There are no significant connections between reliability (a component of attachment) and real self-determination in the sample under study. Emotional autonomy, cognitive autonomy, behavioral autonomy, and value autonomy have significant positive correlations with the level of real self-determination in students.

scholarly journals To understanding the effects of conditioning thinking: about new book of Terrence Webster-Doyle

2021 ◽  
Vol 21 (3-4) ◽  
pp. 83-88
Author(s):  
Anton I. Belkin
Keyword(s):  
Human Mind ◽  
Scientific Center ◽  
Paradoxical Situation ◽  
The Social ◽  
Biological Protection ◽  
Academy Of Sciences ◽  
Relationship Of ◽  
The Relationship ◽  
Original Approach

Review of the book Mind Games: towards understanding the nature of prejudice and conflict, or how to learn to live in peace by Terrence Webster-Doyle. Mind Games: To understand the roots of prejudice and how to learn live peacefully: a scientific and educational publication. T. Webster-Doyle. Samara Cultural Society Artifact-Cultural Diversity. Samara: Samara Scientific Center of the Russian Academy of Sciences; 2020. 55 p. Reviewer considers that T. Webster-Doyles book is a brilliant example of how conflicts can be resolved most effectively without theorized distraction. T. Webster-Doyles book is small in volume, but very significant in content. The author offers a real program for taming the conflicts and violence that fill the entire human history. Until now, there is a clear lack of research on the universal determinants of the emergence and dynamics of conflict. A paradoxical situation arises when methods of conflict resolution are studied and modified, despite the fact that its initial determinants are not accurately determined. The models of taming conflicts that are being replicated in the social sciences almost do not solve the very problem of overcoming violence in society. Note that T. Webster-Doyle defines her book as the most significant work of her life. The author proposes an original approach to the determination of the conflict and defines the ways of its resolution in direct relationship with the understanding of its determinants. Also, the advantage of the book is a good literary presentation of the material. T. Webster-Doyle views conflict as a phenomenon created by the human mind, which at the same time, in a paradox, is trying to solve a problem which it itself creates. This work is devoted to the study of the determinants of conflict, which are considered comprehensively in the relationship of biological and social determinants: as generated by genetically programmed brain programs and at the same time as a function of peoples perception of the world around them and each other. The author notes that the universal basis of biological programming is the general motivation the desire to survive. Consequently, this work presents a program for resolving the conflict based on a comprehensive consideration of the conflict as a sociobiological phenomenon, which is based on the conditioned thinking of a person (primordial biological protection of his brain). The advantage of the book is its versatility. The author does not just consider the problem of the conflict, its components, the parties to the conflict, conflict genes, the incident, etc. He is looking for an approach that allows you to take a fresh look at this problem and find ways to prevent and destroy the conflict.

scholarly journals Determination of Fe and Zn Accumulation in Leafy Vegetables and Mushrooms Using Energy Dispersive X-Ray Fluorescence Technique

2011 ◽  
Vol 68 (2) ◽  
Author(s):  
Claudia STIHI ◽  
Gabriela BUSUIOC ◽  
Cristiana RADULESCU ◽  
Carmen ELEKES ◽  
Sorin CIULEI
Keyword(s):  
Leafy Vegetables ◽  
Energy Dispersive ◽  
Wild Edible Mushrooms ◽  
X Ray ◽  
Zn Uptake ◽  
Edxrf Technique ◽  
Armillariella Mellea ◽  
Relationship Of ◽  
The Relationship

The aim of this study was to determine the Fe and Zn concentrations in some leafy vegetables (cabbage, spinach, celery and lettuce) and in their growing soil collected from sites with different industrial activity; in fruiting body of wild edible mushrooms (Armillariella mellea) and in their substrate (soil) collected at different distances by a metal smelter, by using energy dispersive X-ray fluorescence (EDXRF) technique. A quantitative evaluation of the relationship of Fe and Zn uptake by the vegetables and mushrooms from soil was made by calculating the coefficient accumulation Ka. The results reveal that lettuce is a accumulator of Fe and Armillariella mellea is a accumulator of Zn.

scholarly journals Under Pressure: Intraluminal Filling Pressures of Postpartum Hemorrhage Tamponade Balloons

2017 ◽  
Vol 07 (02) ◽  
pp. e86-e92 ◽  
Author(s):  
Kathleen Antony ◽  
Diana Racusin ◽  
Michael Belfort ◽  
Gary Dildy
Keyword(s):  
Postpartum Hemorrhage ◽  
Ex Vivo ◽  
Volume Ratio ◽  
Intraluminal Pressure ◽  
Acute Hemorrhage ◽  
Volume Relationship ◽  
Pressure Volume Relationship ◽  
Relationship Of ◽  
Condom Catheter ◽  
Filling Capacity

Objective Uterine tamponade by fluid-filled balloons is now an accepted method of controlling postpartum hemorrhage. Available tamponade balloons vary in design and material, which affects the filling attributes and volume at which they rupture. We aimed to characterize the filling capacity and pressure-volume relationship of various tamponade balloons. Study Design Balloons were filled with water ex vivo. Intraluminal pressure was measured incrementally (every 10 mL for the Foley balloons and every 50 mL for all other balloons). Balloons were filled until they ruptured or until 5,000 mL was reached. Results The Foley balloons had higher intraluminal pressures than the larger-volume balloons. The intraluminal pressure of the Sengstaken-Blakemore tube (gastric balloon) was initially high, but it decreased until shortly before rupture occurred. The Bakri intraluminal pressure steadily increased until rupture occurred at 2,850 mL. The condom catheter, BT-Cath, and ebb all had low intraluminal pressures. Both the BT-Cath and the ebb remained unruptured at 5,000 mL. Conclusion In the setting of acute hemorrhage, expeditious management is critical. Balloons that have a low intraluminal pressure-volume ratio may fill more rapidly, more easily, and to greater volumes. We found that the BT-Cath, the ebb, and the condom catheter all had low intraluminal pressures throughout filling.

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