In this paper, the author theoretically analyses piracy drivers rooted on land which may form main obstacles for the resolution of problems at sea. Discussing the claim of Murphy that piracy is a land-based crime, this article expands the focus and examines the main drivers to understand causes of piracy exististence. Furthermore, it questions the credibiity of statistical data for the researchers to make reliable conclusions in this area. And, finally, the author examines weaknesses in understanding piracy which might help to reduce piracy as a maritime crime.
The material of the article reflects the results of the next stage of the systematic study of a very important problem in finding effective methods for processing chemical (T) oils into alternative functionally high quality and high biodegradability bioproducts of the fuel and lubricants (PM) materials. The main object of experimental research is the method of acetolysis of oils as one of the practically unexplored methods in comparison with well-developed methods of alcoholysis and esterolysis of T-oils. Based on the considered mechanism of catalytic and reversible reaction of acetolysis of oils as specific preacylation of their triacetylglycerol molecules, chemical-technological bases of processes of acetolysis of oils of two types are developed, namely: basic – rapeseed (g) and composition on its basis with 20 %, castor oil the so-called "ripritsol-20" (years). The optimal technological parameters for achieving high efficiency of acetolysis processes to obtain high-quality intermediates - mixtures of the corresponding FFAs of the general formulas RрC(O)–OH or RррC(O)–OH have been established. The necessity of combining the process of acetolysis of oils (p) or (pp) as the basis of the first stage of processing technology with the next stage, namely the conversion of VJ acids into more active in the reactions of the next stage derivatives - acid chlorides, and by a known, simple and fast method almost quantitative yield of intermediate products - mixtures of HlAn-VZhK (r) or (rr). The conceptual idea of the complex technology indicates the directions of rational processing of mixtures of VZ acids and their anhydrides (mixtures of HlAn-VZhK) into biocomponents of a wide range of purposes. In the second stage of the complex process, it is proposed to process Hlan-IJK mixtures into main bioproducts - biofuels or basic bio-oils by the well-known technologically and perfect Schotten-Bauman method, which is based on the acylation reaction of alcohols of the appropriate structure with chlorides of a certain type. or HlAn-VZhK (pp). Emphasis is placed on the rather favorable course of the acylation reaction of alcohols by the chosen method, in particular on its irreversibility, high speed under standard conditions, under such conditions high technical and economic efficiency of the second stage technology of the complex process is provided. It is shown that the technological operations of the complex process can be modified, directing them to the production of certain bioproducts, such as biofuels or biooils on the basis of adapted selection of the necessary combinations of raw materials. Thus, new biofuels of ester structure are proposed to be obtained by acylation of methanol or ethanol with mixtures of VOR acid chlorides derived from ripol. While new basic biooils of diester structure are recommended to be obtained by acylation of glycolysis of industrial production (in particular ethylene glycol) with a mixture of HlAn-VZhK, derived from the composite oil ripritsol-20. The presented tables of the calculated material balances of each of the stages of the complex process characterize their technical and economic efficiency and environmental safety. The main functional properties and some operational indicators of the experimental samples of products obtained during the research are determined: both biofuels and basic biooils, and composite ones based on the best mineral and bioproducts, in particular biodiesel and motor min-biooils. The analysis of their characteristics convinces that they do not concede on the functional indicators of quality to the best traditional materials of branch of PM-materials. Bibl. 12, Tab. 5.
The review attempts to systematically and analytically consider certain results of scientific research and applied developments of such an urgent problem of our time as «hydrogen, hydrogen and atomic hydrogen energy» over the past 15–20 years. In the context of a reasoned statement of the problem, the main categorical-conceptual apparatus of the problem is determined. The main directions and issues of research on the phased solution of the problem are indicated. It is proved that the foundation of the problem is the understanding of the physicochemical properties of hydrogen as a chemical element and its characteristics as a simple substance based on a number of its specific properties. The phenomenon of hydrogen corrosion and its analysis from the point of view of the level of danger, the risk of its use and safety precautions are considered. Attention is focused on the features of the processes of storage, transportation and use of hydrogen as an energy carrier and raw material for technologies. The advantages of obtaining and using solid-phase hydrogen compounds with metals and intermetallic compounds as convenient and safe means of hydrogen transfer to consumers are noted. An example of the use of the most effective hydrides as carriers of H2 in motor vehicles by adding H2 to the minfuel in the engine power system is given, illustrated by a diagram. Special conditions for the use of H2 in heat supply processes (in thermal power engineering in general) are indicated, taking into account the difference in the thermophysical characteristics of H2, CH4, air and oxygen. The features of the development and use of means of transportation and storage of H2 are noted. Considerable attention is paid to the consideration of the physicochemical foundations for the production and use of metal hydrides and intermetallides in the context of evaluating them as means of solid-phase storage of H2 transfer in technological processes. The classification of hydrides and their functional characteristics of the most effective and promising hydrides — metal-like and especially intermetallic ones are presented: their preparation and areas of use. The innovative concept of atomic hydrogen energy is described in detail, which will determine the most promising areas of practical developments on the subject of the problem and their implementation. The concept is based on the use of the heat of a gas-cooled nuclear reactor for the implementation of two types of tasks: the efficient use of hydrogen as an energy carrier, for example, in the field of heat supply; the efficiency and profitability of methods for producing hydrogen using the numerous methods, methods and technologies already proposed, which, without nuclear technologies, are currently low-efficient and unprofitable. A project is proposed for using the heat of a GOx-th nuclear reactor in a fundamentally new complex of distant heat supply (method, technology, schemes) using a two-stage, reversible chemo-thermal process. It has been proven that the heat of a nuclear reactor can be used for the effective implementation of a number of traditional and innovative chemical and electrochemical, biochemical, etc. reactions for obtaining H2. A feasibility study has proven the effectiveness of such nuclear-hydrogen energy. A complete list and analysis of innovative, reversible (cyclic) chemical reactions for the production of H2 is presented. The review is based on the latest references to foreign publications on the subject of the problem (2018–2022), obtained from such an international source as «Elsevier-Science Direct». Bibl. 26, Fig. 4, Tab. 5.
The use of multi-label biochemical panels is justified by the fact that different markers reflect the severity of various pathological processes (disorders of carbohydrate and fat metabolism), which in their interaction are indicators of decompensation of a single pathology – diabetes in particular. The aim of the work was to study the differences in biochemical parameters in healthy and patients with type 1 diabetes mellitus (T1D) depending on the level of albumin in the urine. 78 men and 62 women aged 22-26 years, patients with diabetes mellitus type 1, who were hospitalized in the therapeutic department в № 1 and № 2 of Vinnytsia Regional Highly Specialized Endocrinology Center and 8 practically healthy men and 13 practically healthy women of the same age were examined. The level of microalbuminuria was determined in all patients by enzyme-linked immunosorbent assay. Fasting blood glucose and 2 hours after a meal were determined by enzymatic, amperometric analysis on a biochemical analyzer Biosen C_Line, manufactured by EKF Diagnostic (Germany). The average value of blood glucose was calculated mathematically. To determine glycated hemoglobin (HbA1c), we used the method of high performance liquid chromatography on a D 10 analyzer, manufactured by Bio-Rad (USA). The International Normal Ratio (INR) was determined using a set of reagents to determine the prothrombin time, prothrombin ratio and international sensitivity index, which is specified in the passport to the set (manufacturer of PC-K-TEST "Granum"). Total cholesterol and triglycerides were determined by colorimetric photometric method (using enzymes) on a biochemical analyzer using standard kits from Olympus AU480 (USA). Statistical processing of the results was performed in the license package "Statistica 5.5", using non-parametric evaluation methods. When comparing the level of biochemical parameters between patients with T1D and normo-, microalbuminuria and proteinuria with healthy men or women, patients found higher values: fasting glucose (in men – by 29.1 %, 30.9 % and 42.0 %; in women – by 29.7 %, 33.2 % and 46.0 %); glucose 2 hours after exercise (for men – by 27.4 %, 30.8 % and 36.1 %; for women – by 30.4 %, 32.4 % and 40.2 %); the average value of glucose (for men – by 26.2 %, 30.8 % and 39.3 %; for women – by 28.7 %, 34.0 % and 43.1 %); glycated hemoglobin (47.8 %, 48.8 % and 45.8 % for men; 27.2 %, 50.2 % and 54.4 % for women). Also, in patients with T1D men and proteinuria and women with normoalbuminuria and proteinuria compared with healthy men or women found higher cholesterol values (17.8 % in men and 7.6 % and 26.0 % in women); and in patients with T1D men with proteinuria compared to healthy men – 31.3 % higher triglyceride levels. When comparing the level of biochemical parameters between patients with T1D in men or women with proteinuria, higher values were found: fasting glucose compared with men with normoalbuminuria by 22.2 % and with women with normoalbuminuria by 30.3 % and microalbuminuria by 23.7 %; the average value of glucose compared with men with normoalbuminuria by 20.8 % and microalbuminuria by 14.0 %; glycated hemoglobin compared to women with normoalbuminuria by 15.9 %; compared with men with normoalbuminuria and microalbuminuria – by 24.8 % and 20.3 %, or with women with normoalbuminuria and microalbuminuria – by 24.9 % and 28.0 %; triglycerides compared with men with normoalbuminuria by 23.0 %. When comparing the sex differences in the level of biochemical parameters between healthy or between patients with T1D and normo-, microalbuminuria and proteinuria in men and women, only higher values of glycated hemoglobin by 14.1 % in women with proteinuria and total cholesterol by 8.3 % in women with normoalbuminuria were found. Thus, between healthy and patients with T1D and different levels of albuminuria there are differences in biochemical parameters, and they are greater the higher the level of albumin in the urine.
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