Quality in the pre-preanalytical phase of the testing process — «old songs about the main thing»

2021 ◽  
Vol 10 (3) ◽  
pp. 5
Author(s):  
Author(s):  
O.V. Brazhnikova ◽  
◽  
N.V. Gavelya ◽  
I.D. Maykova ◽  
◽  
...  
Keyword(s):  

2018 ◽  
Vol 13 (4) ◽  
pp. 633-648
Author(s):  
Kobi Peled

A striking feature of Palestinian oral history projects is the extensive use that interviewees make of direct speech to communicate their memories—especially those born before the 1948 Arab–Israeli war. They do so irrespective of whether or not they participated in or actually heard the dialogues they wish to convey. This article seeks to characterize and explain this phenomenon. In the interviews conducted by the author—an Arabic-speaking Jew—as well as in other projects, this mode of speech is marked by ease of transition from character to character and between different points in time. It clearly gives pleasure to those engaged in the act of remembering, and it grades readily into a theatrical performance in which tone of speech and the quality of the acting become the main thing. This form of discourse sprang up from the soil of a rural oral culture and still flourishes as a prop for supporting memory, a vessel for collecting and disseminating stories, and a technique for expressing identification with significant figures from the past.


2008 ◽  
Vol 27 (3) ◽  
pp. 348-353 ◽  
Author(s):  
Giuseppe Banfi ◽  
L. Germagnoli

Preanalytical Phase in Haematology The preanalytical phase is particularly important in haematology, where counts of particles and cells are performed in whole anticoagulated blood. The correct use and concentration of anticoagulant is mandatory to avoid spurious results, which can influence clinical decision. EDTA is the anticoagulant of choice, but it has some limits, especially for preserving stability and shape of platelets. Stability of haematological parameters is high, with the exception of leukocytes and reticulocytes. However, stability (and instrumental precision) should be evaluated together with biological variability and individuality index of various haematological parameters. Hematological tests are also influenced and interfered by high amounts of lipids and chylomicrons. The mixing procedure of the tubes after blood drawing and before analysis is also crucial for obtaining correct and valid data. There are some examples of interferences on automated haematological analysers which are used for diagnosing and screening pathological conditions. Cryoglobulins and erythrocytes parasites can induce spurious results of WBC, RBC and PLT, but the repeatability of these interferences could be used for alerting the pathologist and could reveal the presence of pathological proteins or blood parasites. New parameters have been proposed by modern haematological analysers, directly defined or calculated from traditional measures, but the clinical impact of these new parameters is often dependent on preanalytical variables.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Cigdem Sonmez ◽  
Alper Gümüş ◽  
Mehmet Senes ◽  
Guzin Aykal ◽  
Fatma Taneli ◽  
...  

Abstract Centrifugation separates particles within the specimen according to their shape, dimensions, and density and basically can be defined as a separation method. The centrifuge is an essential device in medical laboratories to prepare the serum, plasma, and urine samples for analysis. It is basically an electric device composed of the stationary (motor) and the motile (rotor) part. The centrifugation depends on two main variables: relative centrifugal force (RCF) and centrifugation time. The physical impact separating the specimen into its components in the centrifuge known as RCF is expressed as the multiples of gravitational acceleration (×g). RPM, defined as the number of rotations of the centrifuge per minute, shows the speed of the centrifuge. RCF value can be calculated by using RPM, and the centrifuge radius. Because models and sizes of centrifuges vary considerably, the use of gravity (g) forces instead of RPM is suggested. The centrifuges can be classified according to their usage, speed, technical specifications, and rotor type. An accurate and precise centrifugation process is essential to prevent errors in the preanalytical phase. The purpose of this document is to ensure the standardization of a good, precise protocol for the centrifugation process among the medical laboratories.


Author(s):  
Greta G. Solovieva ◽  
◽  
Zhazira A. Rakhmetova ◽  

Does modern philosophy of art reject the principles and methods of mastering the reality of classical aesthetics, in particular, the category of the beautiful, em­phasizing, on the contrary, the ugly, ugly, terrible, disgusting? The authors strive to find answers in the dialogue of great philosophical masters – “Zeus the Olympian of the German classics” by Hegel and the preacher of “progressive negation” on the border of modernity and postmodernism Theodor Adorno. Hegel insists on the transcendental origin of the beautiful as the coincidence of idea and reality, the sensory phenomenon of the absolute, the resolution of con­tradictions between the subjective and the objective, the universal and the indi­vidual, the finite and the infinite. Adorno opposes, claiming the rights of “beauti­ful negativity”. He abandons the transcendental character of beauty and shifts the emphasis to the social sphere. The ugly, the ugly, the ugly should not be hidden. But to portray him in such a way as to arouse disgust towards him, the desire to create a project of “righteous life” But the development of the dialogue reveals that both thinkers ultimately agree on the main thing: the beautiful is inescapable and remains the defining category of both aesthetics and life.


2021 ◽  
pp. 57-63
Author(s):  
A. A. Baryakh ◽  
L. O. Tenison

Safety of a water-proof pillar between the stoping void and the aquifers defines the key feature of water-soluble mineral mining. In this regard, the most important element of geomechanical supervision of mining operations, especially, at the mine project stage, is the engineering safety criteria aimed at the adequate valuation of safe undermining of water-proof strata (WPS). The WPS safety procedures now in force calculate only maximal sagging of undermined beds and disregard deformation in the edge area of WPS. In the meanwhile, the edges of WPS are the areas of localization of maximal horizontal strains, and the hazard of vertical jointing is the highest in these areas. In this connection, in the capacity of the index of the manmade load on WPS, it is proposed to use the maximal slope of the edge area of the subsidence trough. The evaluations were carried out in 6 Uralkali’s mine sites selected from the mathematical modeling and geophysical survey data which exhibited considerable damage of WPS. Based on the implemented research and justifications, it is recommended to use the generalized safety criterion for undermining of WPS as a maximal subsidence/mining depth ratio which is directly proportional to the ground slope. This engineering procedure describes more adequately the fracture mechanism in WPS rocks, in particular, damage localization in edge areas of the subsidence trough, or influence of mining depth on WPS stability and, which is main thing, is based on the criteria derived from the long-term observations and measurements performed in the Upper Kama deposit. The study was supported by the Russian Science Foundation, Grant No. 19-77-30008.


2020 ◽  
Vol 2020 (12-1) ◽  
pp. 150-167
Author(s):  
Alexey Grishchenko

The article tells about the life path and research work of the Don agricultural historian P.G. Chernopitsky. The stages of scientific creativity are determined, the main scientific works in the context of the era are considered, its position on the debatable problems of the Don and North Caucasus history, in particular, on the essence and stages of decossackization is determined. The contribution of P. G. Chernopitsky to the study of the socio -economic history of the Soviet pre -collective farm village, collectivization, the famine of 1932-1933 in the North Caucasus, the history of the Don Cossacks in the Soviet period is demonstrated. Relations with colleagues at Rostov State University are highlighted.


Author(s):  
Irina Abramova

More than a year and a half has passed since the first Summit and the Russia-Africa Economic Forum. The crisis of “Western-style” globalization, accelerated by the coronavirus pandemic, has adjusted the formation of the Russian business strategy in the African direction. The most important areas of Russian-African cooperation in the near future are healthcare, ensuring food security, infrastructure projects, including digitalization, education and science. With what results will Russia and Africa approach the next Summit, planned for 2022? Which business strategy will meet both Russian and African interests? What Russian investment projects are already being implemented on the African continent? How are the new mechanism and tools of the Russian-African partnership formed? These and other issues on the Russian-African agenda were discussed at the Russia-Africa business dialogue, which was held on June 3, 2021 as part of the St. Petersburg International Economic Forum. This was the first major Russian African event in full-time format after the historic Russia-Africa Summit and Economic Forum, which was successfully held in Sochi on October 23-24, 2019. The participants in the discussion concluded that Africa needs Russia to achieve the ambitious goals of the Agenda 2063, but Russia also needs Africa to implement the new development strategy of the Russian Federation, which focuses on increasing non-resource exports and technological breakthrough. The African fast-growing market, formed by the youngest population in the world, is showing an increased demand for modern Russian goods and technologies, primarily in such areas as healthcare, agriculture, infrastructure, resource development, and digital products. To intensify cooperation, it is necessary to use the entire set of instruments of public-private partnership, to utilize the information resource at full capacity, and to develop cooperation in the field of science and education. The main thing for us now is to bring our cooperation, including in the economic sphere, to a fundamentally new level that meets the interests of our peoples. Both Russia and Africa have a lot to learn from each other, and our economic strategies can be successfully implemented if we combine our efforts.


1882 ◽  
Vol 11 ◽  
pp. 487-498
Author(s):  
Chrystal

The phenomena accompanying the disruptive discharge of electricity are, in the present state of electric science, among the most interesting known, because they are the least understood, and, so far as we know, the least concordant with our preconceived ideas. The simplest way of representing the facts is to imagine with Faraday that the non-conducting medium, or dielectric, between two charged conductors is the seat of mechanical stress, consisting of tension along, and pressure perpendicular to, the lines of force. The rupture of the dielectric may then be conceived as a phenomenon precisely analogous to the rupture of an elastic body under stress. We are thus led to the conclusion that the commencement of the rupture happens at that particular point where the tension first reaches a certain value, called the breaking tension or dielectric strength, which depends merely on the material of the dielectric, and on its physical condition at the time being. The main thing in any experiment on dielectric strength is to know the tension at the point where the rupture begins.


2018 ◽  
Vol 37 (2) ◽  
pp. 172-180 ◽  
Author(s):  
Fatma Demet Arslan ◽  
Inanc Karakoyun ◽  
Banu Isbilen Basok ◽  
Merve Zeytinli Aksit ◽  
Esma Celik ◽  
...  

SummaryBackground:The most common sources of error in the preanalytical phase are considered to be at the stage of patient preparation and sample collection. In order to reduce the preanalytical errors, we aimed to determine the level of phlebotomists knowledge about the preanalytic phase before and after planned trainings in the study.Methods:Training about preanalytical processes was given to the 454 health professionals and the majority of them were employed as nurse. Questionnaires before and after training were conducted. In order to assess the effect of the training into the process, preanalytical error rates were calculated before and after training.Results:The total correct answer rates of vocational school of health diplomaed were statistically lower than the total correct answer rates of other. It was observed significantly increase in the rate of correct answers to questionnaire and significantly decrease in preanalytical error rates after training.Conclusions:The results of the survey showed that the attitudes of the phlebotomists were diverse in the preanalytical processes according to the levels of education and their practices. By providing training to all staff on a regular basis, their information about preanalytical phase could be updated and hence, it may possible to significantly reduce the preanalytical errors in health practice and nursing science.


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