scholarly journals Pregnancy and electrocardiogram: Can a basic tool help us to understand a complex and understudied population?

Author(s):  
André Viveiros Monteiro
Keyword(s):  
Author(s):  
J. Temple Black

In ultramicrotomy, the two basic tool materials are glass and diamond. Glass because of its low cost and ease of manufacture of the knife itself is still widely used despite the superiority of diamond knives in many applications. Both kinds of knives produce plastic deformation in the microtomed section due to the nature of the cutting process and microscopic chips in the edge of the knife. Because glass has no well defined slip planes in its structure (it's an amorphous material), it is very strong and essentially never fails in compression. However, surface flaws produce stress concentrations which reduce the strength of glass to 10,000 to 20,000 psi from its theoretical or flaw free values of 1 to 2 million psi. While the microchips in the edge of the glass or diamond knife are generally too small to be observed in the SEM, the second common type of defect can be identified. This is the striations (also termed the check marks or feathers) which are always present over the entire edge of a glass knife regardless of whether or not they are visable under optical inspection. These steps in the cutting edge can be observed in the SEM by proper preparation of carefully broken knives and orientation of the knife, with respect to the scanning beam.


1963 ◽  
Vol 6 (4) ◽  
pp. 359-368 ◽  
Author(s):  
Charles I. Berlin

Hearing in mice has been difficult to measure behaviorally. With GSR as the basic tool, the sensitivity curve to pure tones in mice has been successfully outlined. The most sensitive frequency-intensity combination was 15 000 cps at 0-5 dB re: 0.0002 dyne/cm 2 , with responses noted from 1 000 to beyond 70 000 cps. Some problems of reliability of conditioning were encountered, as well as findings concerning the inverse relationship between the size of GSR to unattenuated tones and the sound pressure necessary to elicit conditioned responses at or near threshold. These data agree well with the sensitivity of single units of the eighth nerve of the mouse.


2003 ◽  
Vol 8 (1) ◽  
pp. 61-75
Author(s):  
V. Litovchenko

The well-posedness of the Cauchy problem, mentioned in title, is studied. The main result means that the solution of this problem is usual C∞ - function on the space argument, if the initial function is a real functional on the conjugate space to the space, containing the fundamental solution of the corresponding problem. The basic tool for the proof is the functional analysis technique.


Author(s):  
Dr.Seethal Peenikkal ◽  
Dr.K.Savitha R. Shenoy ◽  
Dr.Sri Nagesh K.A.

Breast Cancer is one of the most common types of malignancy among Indian woman currently. The current increase in the world wide prevalence of this disease suggests an urgent need of detailed analysis, diagnosis and treatment line through Ayurvedic principles. As cancer is least understood in technical terms of Ayurveda, Nidana Panchaka a basic tool to understand and diagnose a Vyadhi, is used to analyze it. Even though a direct diagnostic correlation of breast cancer is not available under the major Vyadhi classifications, it is possible to elicit and formulate Nidana Panchaka based on the references of Sthana Roga, Shopha, Granthi, Arbuda etc. The current article is an effort to formulate Nidana Panchaka for Breast Cancer, from the background of basic principles of Ayurveda, for a better analysis and diagnosis of the Vyadhi.


2021 ◽  
Vol 15 (2) ◽  
Author(s):  
I. Sabadini ◽  
D. C. Struppa

AbstractIn this paper we discuss some notions of analyticity in associative algebras with unit. We also recall some basic tool in algebraic analysis and we use them to study the properties of analytic functions in two algebras of dimension four that played a relevant role in some work of the Italian school, but that have never been fully investigated.


1966 ◽  
Vol 15 (4) ◽  
pp. 333-344 ◽  
Author(s):  
L. Gedda ◽  
M. Milani-Comparetti

SummaryThe Authors report on the steps involved in the computerization (coding of data, card punching and tape recording) of a Twin Register initiated in 1942 and currently approaching 11,000 cases of multiple births.The Register is permanent in that it involves continued updating of information and addition of new cases. It includes twins of any age, sex, zygosity and health condition.The experience gained in the reported project can be usefully shared in wiew of international cooperation and standardization.


2008 ◽  
Vol 18 (01) ◽  
pp. 219-225 ◽  
Author(s):  
DANIEL TURZÍK ◽  
MIROSLAVA DUBCOVÁ

We determine the essential spectrum of certain types of linear operators which arise in the study of the stability of steady state or traveling wave solutions in coupled map lattices. The basic tool is the Gelfand transformation which enables us to determine the essential spectrum completely.


2012 ◽  
Vol 01 (07) ◽  
pp. 72-82
Author(s):  
Nanik Ram ◽  
Immamuddin Khoso ◽  
Muhammad Bachal Jamali ◽  
Faiz.M. Shaikh

This research addressed the ethical issues in Private Commercial Banks in Pakistan. Data were collected from 500 respondents/Customers from cross sectional data by using simple random technique and data were analyses by using SPSS-18 version. A structural questionnaire was used as basic tool for data collection, analysis, validity and reliability. It was revealed that private commercial banks are not caring for the customers specially, four old Banks UBL, HBL, MCB, ABL. It was further concluded that most of the staff members who interact with the customers is non MBAs so that’s why their attitude towards the customers are not friendly.


2018 ◽  
Vol 106 (03) ◽  
pp. 342-360 ◽  
Author(s):  
G. CHIASELOTTI ◽  
T. GENTILE ◽  
F. INFUSINO

In this paper, we introduce asymmetry geometryfor all those mathematical structures which can be characterized by means of a generalization (which we call pairing) of a finite rectangular table. In more detail, let$\unicode[STIX]{x1D6FA}$be a given set. Apairing$\mathfrak{P}$on$\unicode[STIX]{x1D6FA}$is a triple$\mathfrak{P}:=(U,F,\unicode[STIX]{x1D6EC})$, where$U$and$\unicode[STIX]{x1D6EC}$are nonempty sets and$F:U\times \unicode[STIX]{x1D6FA}\rightarrow \unicode[STIX]{x1D6EC}$is a map having domain$U\times \unicode[STIX]{x1D6FA}$and codomain$\unicode[STIX]{x1D6EC}$. Through this notion, we introduce a local symmetry relation on$U$and a global symmetry relation on the power set${\mathcal{P}}(\unicode[STIX]{x1D6FA})$. Based on these two relations, we establish the basic properties of our symmetry geometry induced by$\mathfrak{P}$. The basic tool of our study is a closure operator$M_{\mathfrak{P}}$, by means of which (in the finite case) we can represent any closure operator. We relate the study of such a closure operator to several types of others set operators and set systems which refine the notion of an abstract simplicial complex.


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