scholarly journals The effect of ethyl alcohol on accuracy of time since death estimation using laser poliarimetric methods of cerebrospinal liquid polyristallic films investigation

2017 ◽  
pp. 33-39
Author(s):  
Marta Garazdiuk ◽  
Viktor Bachynskyi ◽  
Iryna Lebedintseva ◽  
Oleksandr Garazdiuk ◽  
Andrii Andriichuk

The article analyzes the possibility of using laser polarimetry methods to determine the possible influence of ethyl alcohol in the body of the deceased on the change in the structure of the polycrystalline films of the cerebrospinal fluid. The efficiency of usage laser polarimetry methods (determination of complex degree of mutual polarization and autofluorescence of polycrystalline films of cerebrospinal fluid) have been proved. Relationships between the distribution of the intensity of the fluorescence of polycrystalline films of the cerebrospinal fluid of the cadavers as a result of cardiovascular pathology in the presence and absence of ethyl alcohol in the organism and the values and ranges of the change of statistical moments of the 1st - 4th orders that characterize such autofluorescence images are investigated. A good level of balanced differentiation of the presence of ethyl alcohol in the human body in the «green-yellow» and «red» sections of the spectrum has been achieved. There is a statistically significant difference between cases of death from cardiovascular disease in the presence and absence of ethyl alcohol in an organism by determining the magnitude of the statistical moment of the 4th order, which characterizes the distributions of the azimuth magnitude of the polarization of microscopic images of laser-induced fluorescence. On this basis, an excellent balanced accuracy of the differentiation of the presence of ethyl alcohol in the human body (Ac (M4) = 94%) has been achieved. Consequently, ethyl alcohol affects the structure of polycrystalline films of cerebrospinal fluid, which should be taken into account when time since death estimated using methods of laser polarimetry.

2019 ◽  
Vol 32 ◽  
pp. 302-319
Author(s):  
Khadeeja S.J. Al-Husseiny ◽  
Maryam T. Khrebish

The current study aimed to estimate the pigments of some muscles parts taken from cows, sheep and chicken (thigh, chest and back). The chemical content including moisture, protein, lipids and ash, as well as the pH and the water holding capacity have been evaluated. Results showed that the moisture differed among three animals with high percentage of moisture, ash and lipid in back in compared with other parts of cows. while significant difference in the percentage of ash of back with other parts and in protein in chest with other parts of sheep. The significant differences were recorded in percentage of ash of three parts of chicken, also significant differences between chest and back. The water holding capacity of fresh meat samples taken from thigh, chest and back of cows, sheep and chicken significantly differ among samples. pH values which reflect a confect in water holding capacity of meat samples taken from different parts of the body and from different animal. In addition, there was a significant differences in the percentage of the presences of myoglobin, metmyoglobin and oxymyoglobin in different samples taken from different parts of the slaughtered animals.


2014 ◽  
Vol 13 (4) ◽  
pp. 448-457
Author(s):  
Milan Kubiatko ◽  
Kristyna Balatova

The misconceptions about different scientific phenomena are persisting from childhood till adulthood and no method managed to transform it into the correct form. The study is focused on finding out the misconceptions about common facts of zoology and also human body. The respondents were 112 university students. Among these respondents were 22 science major students and the rest of the respondents were non-science majors. The number of females was 82. All respondents are potentially future teachers at elementary schools, so there is a great chance/ possibility they will teach pupils and present them the kinds of information which are investigated in this study. Research tool contained 7 items, most of them were from the field of zoology and one from the field of human anatomy. Obtained data were analysed by the proportional ratio of correct and incorrect answers and the chi-square test was used for the determination of differences between groups of variables gender and field of study. There was not found a significant difference between males and females and science major students often answered some items more. There were found many misconceptions about common facts of zoology and human body. Key words: animals, human body, misconceptions, persistence, university students.


Author(s):  
S. Goncharevskyi ◽  
M. Makarchuk ◽  
V. Martynyuk

Almost all processes in the human body in one way or another connected with the autonomic nervous system. That's why it is real to evaluate the functional state of the person by temperature characteristics of representative points of the autonomic nervous system. Location and information of these points are confirmed by fundamental research. However, simply measuring the temperature at some points may not be sufficient to establish any systematic changes in the human body. The establishment of such changes requires systematic assessment of interdependent significant relationships between these parameters.The main aim of our research was to study effects of myocardial infarction in the thoracic region of the autonomic nervous system. The temperature of representative areas of the thoracic autonomic nervous system we measured by infrared thermometer (Medisana FTO D-53340 , with an accuracy of 0.1 degree Celsius). Statistical analysis was conducted in the packet Statistics 10. The presence of a difference in the temperature coefficients of representative areas (p<0,05). For the left side of the spine characterized by a difference in Th1–Th5 segments, which confirms their diagnosis: Th1 – 0,931,12 (control) and -0,797,49 (experiment), Th2 – 1,571,12 and -0,486,70, Th3 – 1,582611,12325 and -0,663,36, Th4 – 0,85913 0,92611 and -1,74,64, Th5 – 0,923480,75469 and-1,615,73 respectively. For the right side of the thoracic spines: Th6 – 0,850,73 (control) and -0,797,49 (experiment), Th7 – -1,000,79 and -1,370,69, Th8 – -0,960,73 and -0,990,68, Th9 – -0,120,64 and -0,380,83, Th10 – -0,921,14 and -1,031,00, Th11 – -1,691,05 and -1,861,06, Th12- -1,651,15 and -1,961,12 respectively. We found that myocardial infarction is manifested in the thoracic spine. In an experimental group there is significant difference of temperature in all segments. We can also notice asymmetry of temperatue between the right and left side of the spine. In the test group there are a deviation from the normal temperature in the first five thoracic segments on the left side, which confirms their diagnosis. On the right side of the spine there are a deviation in the last seven segments, which may indicate the compensatory mechanisms of regulation of the system. We can observe the temperature asymmetry, which in long-term exposure can negatively affect to the body.


1969 ◽  
Vol 08 (04) ◽  
pp. 311-319 ◽  
Author(s):  
H. Daniel

SummaryA completely new technique for scanning the interior of the human body is proposed which is based on the following principle: muons from an accelerator pass through two spark chambers and are stopped in the body. The decay electrons leave the body and pass also two spark chambers. The trajectory co-ordinates read out from the spark chambers allow the determination of the point of decay with high precision. The truly three-dimensional picture obtained in this way is truly three-dimensionally displayed on a screen. Several modifications of the basic method are described, the most important ones being the simultaneous recording of the muonic X-rays (equivalent to a chemical analysis) or of the muon precession. The necessary dose is low. The most serious disadvantage is the need of a medium-energy accelerator. Quantitative figures on resolution, efficiency, and dose are given.


2019 ◽  
Vol 7 (3) ◽  
pp. 167-178
Author(s):  
Krasimira Radieva

The variety of silhouettes is one of main features of Christian Dior’s creativity. The aim of presented paper is a study and analysis of the silhouettes of Christian Dior for determination of connection between a silhouette and the body form and presentation of a silhouette with simple geometric forms. The silhouettes of Christian Dior in his couture collections in the period between 1947 and 1957 are studied, analysed and approximated with combination of well-known simple geometric forms - curved forms of ellipses, ovals, circles, full figures or their parts, and straight ones of rectangles and trapeziums. The investigation of the silhouettes with the application of approximation with well-known simple geometric forms helps the students in their studies in fashion. The approximated geometric approach helps the activity of fashion designers and pattern makers in their creations of new silhouette forms and their proportions to the human body.


Author(s):  
Achmad Mauludiyanto ◽  
Gamantyo Hendrantoro ◽  
Muhammad Fachry Nova

The Wireless Body Area Network (WBAN) refers to a communication network between sensors placed on the inside, on the surface, or around the body wirelessly. WBAN system cannot be separated from body tissues. Body tissues also have electrical properties depending on frequency. Therefore, body tissue can affect the phenomena occurring in radio wave propagation in the WBAN channel. One of the phenomena is attenuation. This study investigates the impacts of body tissue on the WBAN channel and the effects of frequency on the attenuation of body tissue in the WBAN channel. The measurement of magnitude response was carried out with the human body as the measurement object by utilizing the S21 parameter measurement with a vector network analyzer. In NLOS conditions, a human body was located between two coplanar Vivaldi antenna. Measurements were conducted on the head, chest, and abdomen. The frequency used was in the range of 2 GHz to 6 GHz. The body tissue attenuation was obtained by finding the difference between the magnitude measurement response on the LOS and NLOS conditions. The attenuation data were analyzed using statistical and numerical analysis to determine the effect of frequency on the attenuation of the human body tissues. Based on the analysis results, it was identified that the frequency affected the human body tissue attenuation. The enhancement attenuation of the human body tissues occurred when the frequency was higher. Moreover, there was a significant difference in the body tissue attenuation in different parts of the body.Keywords: attenuation, body tissues, s-parameters, wireless body area network.


2019 ◽  
Vol 2 ◽  
Author(s):  
Mahdi Esfahani

In this article, the author discusses the relationship between the human body and the emergence of religious language, starting with the thesis that the nature of the human body has a direct effect on the determination of language, and that we only understand the meaning of words in accordance with our physical disposition. In this thorough philosophical-theological treatise on Being, speech, the body and prophetology, Qur’anic textual examples and Islamic traditions are used to explain how body and language interrelate and what conclusions can be drawn from this for the centuries-old theological debate on the "anthropomorphisms" in the Qur’an.


Litera ◽  
2021 ◽  
pp. 97-106
Author(s):  
Mingxuan Liu

This article is dedicated to reconsideration of nominations of limbs reflected in the phraseological fund of the Chinese language. The goal of this work consist in determination of the conceptual attributes of nominations of human limbs in the Chinese linguistic worldview by analyzing their linguistic representation in the paremiological fund of the language. The author leans on the vast theoretical material, gradually describing the key approaches towards the analysis of &ldquo;bodily concepts&rdquo; and the study of phraseologisms of the Chinese language in the conceptual paradigm. The author reveals several primary and secondary meanings of words that represent limbs in the Chinese language, demonstrating the interrelation between the origin of the word and the number of its secondary conceptual meanings. For example, the hieroglyph &#33050; (foot) is the &ldquo;youngest&rdquo; and most commonly denominates part of the body. The article also proves the possibility of actualization of cognitive meanings of particular linguistic concepts through the analysis of paremias. Namely, the concept &ldquo;arm&rdquo; implies the meanings of &ldquo;mastery&rdquo;, &ldquo;distance&rdquo;, &ldquo;tool&rdquo; and &ldquo;weapon&rdquo;, while the concept&nbsp; &ldquo;foot&rdquo; &ndash; the meanings of &ldquo;foundation&rdquo;, &ldquo;motion&rdquo;, &ldquo;prosperity&rdquo;. The author comes to the conclusion that the ways of reconsideration of human body and its parts in descriptive and comparative terms of different cultures is one of the most effective instruments for cognizing the fundamental of the linguistic worldview.


2016 ◽  
Vol 8 (4) ◽  
Author(s):  
Diana Abzhanova ◽  
Anna Godymchuk ◽  
Alexander Gusev ◽  
Denis Kuznetsov

AbstractThe growing production and use of nickel (Ni) nanopowders with low biopersistence makes dissolution and accumulation degree in a body an important parameters needed for the risk assessment of nanoparticles. We propose an experimental approach for rapid determination of the dissolution degree of nanoscale (77 nm) and ultrafine (275 nm) Ni particles in synthetic biological solutions. It has been shown that after 2 h of exposure to simulating saliva and lysosomal liquid the dissolution degree of nanoparticles can reach 30 and 60 wt.%, respectively. With decreasing of the particle’s size, they are characterized by increased solubility in saliva and the pulmonary tract; and the particles completely dissolve in 24 h. There was an attempt to predict the potential extent of accumulation of nickel compounds in the human body with particles entering the body by saliva or with breathing: with 3.8 times size decrease the probability of nickel accumulation in a body can rise in 3.5 times.


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