scholarly journals ANALYZING BIOCHEMICAL STATUS OF CULTIVATED HYDROBIONTS FOR EVALUATION OF MARICULTURE SUSTAINABILITY

Author(s):  
Valentina Vladimirovna Slobodskova ◽  
Nadezhna Vladimirovna Dovzhenko ◽  
Sergey Petrovich Kukla ◽  
Viktor Pavlovich Chelomin ◽  
Elena Aleksandrovna Zhad'ko ◽  
...  

The article touches upon the problem of sustainable development of the sea hydrobionts. Deep-sea scallop Mizuhopecten yessoensis is one of the most common breeding species in Primorsky Kray usually grown by two methods: cage and bottom. The cage (industrial) cul-tivation type is the most developed, but requires close attention. Improper planning of the mariculture development can affect the scallop survival, which in turn will lead to significant financial losses. Nowadays mariculture farms in different countries register the mass mortality of the cultivated aquatic organisms, the causes of this phenomenon being not clear, and often their identification requires a lot of time, as well as financial expenses. The use of prognostic mechanisms based on biomarkers can help identify the hidden threats in the body of cultivated scallops that lead to the mass mortality. The assessment of the state of mollusks at earlier stages of development will allow predicting and preventing significant losses of commercially valuable species. There have been analyzed the biomarker and scallop mortality rates of the scallop Mizuhopecten yessoensis cultivated by the cage method. Different groups of mollusks from 2 generations with the age difference of 10 years have been evaluated. In the course of the study it was found that with the increasing number of DNA defects and active accumulation of malondialdehyde in tissues the mortality of mollusks increases. It was stated that in scallops aged 1+ generations of 2015 there were registered the great number of DNA molecule defects and the high level of malondialdehyde concentration in the digestive gland and in the gills, which subsequently led to the mortality of almost all commercially valuable species aged 3+.

2021 ◽  
Vol 1 (01) ◽  
pp. 28-34
Author(s):  
Dzikron Bahid M

Introduction: Diseases caused by work become a common health problem and can affect almost all people in the world. As you can see, one of the hazards in the field is ergonomics. The danger from bad posture at work is the cause of the position of the body parts moving uncomfortably which can cause various problems at work, both health problems and work accident problems. Therefore, so that a job does not pose a dangerous risk, it is necessary to have an assessment of ergonomic risk. Researchers aim to analyze the level of ergonomic risk to Welding workers with the Rapid Entire Body Assessment (REBA) Method in the Workshop area of PT. Cemindo Gemilang Bayah Banten in 2020. Methods: This research uses mix methods, which is a research step by combining two forms of research approaches, namely qualitative and quantitative. The subjects in this study were the main informants and key informants totaling 4 people. The main informants in this study were 3 welding workers. The key informant is 1 person, namely HSE. Results: The results of the risk level assessment using the REBA method for welding workers are obtained from the scoring of group A with a value of 8 and the results of scoring for group B with a value of 4, then the total results of C to the scoring of groups A and B have a value of 10. Discussion: Based on the Action Level Score, REBA score 10 shows a high level of risk. 3 people out of 4 workers are known to be at high risk of pain so further review and implementation of changes / immediate action are required.


2019 ◽  
Vol 16 (3) ◽  
pp. 3-10
Author(s):  
Natalya N. Sushentseva ◽  
Svetlana V. Apalko ◽  
Evgeny V. Vasiliev ◽  
Dmitrii V. Gladyshev ◽  
Stanislava N. Vrublevskaya ◽  
...  

Beneficial effect of bariatric surgery is expressed not only in reducing body weight, but also in improving the functioning of the body as a whole. On the one hand, numerous studies devoted to the investigations of specific mechanisms of the influence of bariatric surgery on the general condition of an organism testify to the enormous interest of scientists in this problem. On the other hand, the range of changes is so vast that it covers almost all physiological and biochemical processes. The most noticeable response to bariatric surgery is from the digestive (including the composition of the microbiota), immune (reducing the level of systemic and local inflammation), cardiovascular (reducing the risks of atherosclerosis and other diseases) systems. Partial or complete compensation of type 2 diabetes mellitus and metabolic syndrome also occurs. Among the variety of data, there is insufficient research on only standard biomarkers: leptin, C-reactive protein, interleukin 6, etc. A detailed study of the profiles of both circulating biomarkers and local ones is necessary. At the same time, it is obligate to continue to accumulate evidence on the positive effect of bariatric surgery, since this type of surgical intervention has come into practice relatively recently. Unfortunately, at the present time in Russia bariatric surgery is not an affordable and popular treatment for morbid obesity (MO). Nevertheless, it is extremely important to change the current situation, since bariatric treatment is an optimal and effective solution to socially significant diseases such as MO or type 2 diabetes mellitus.


2019 ◽  
Vol 2 (2) ◽  
pp. 14-16
Author(s):  
Nasim Habibzadeh

The brain is the most complex organ which governs almost all activities in human body. Thus, the mental fitness has high level of importance in every day workouts. The good activities for long-term brain health include performing regular exercises such as a simple walking for 10 min at each day. More importantly having good level of diet can keep the brain workouts in an ideal situation. Indeed, taking enough rest can enhance the brain performances. Listening to the desirable sound of music could also enhance concentration and improve the mood. In overall, these aforementioned life style modifications significantly can easily boost the brain power and its healthy function through different aspects in daily life.


2019 ◽  
Author(s):  
Danilo Carmona ◽  
Pablo Jaque ◽  
Esteban Vöhringer-Martinez

<div><div><div><p>Peroxides play a central role in many chemical and biological pro- cesses such as the Fenton reaction. The relevance of these compounds lies in the low stability of the O–O bond which upon dissociation results in radical species able to initiate various chemical or biological processes. In this work, a set of 64 DFT functional-basis set combinations has been validated in terms of their capability to describe bond dissociation energies (BDE) for the O–O bond in a database of 14 ROOH peroxides for which experimental values ofBDE are available. Moreover, the electronic contributions to the BDE were obtained for four of the peroxides and the anion H2O2− at the CBS limit at CCSD(T) level with Dunning’s basis sets up to triple–ζ quality provid- ing a reference value for the hydrogen peroxide anion as a model. Almost all the functionals considered here yielded mean absolute deviations around 5.0 kcal mol−1. The smallest values were observed for the ωB97 family and the Minnesota M11 functional with a marked basis set dependence. Despite the mean deviation, order relations among BDE experimental values of peroxides were also considered. The ωB97 family was able to reproduce the relations correctly whereas other functionals presented a marked dependence on the chemical nature of the R group. Interestingly, M11 functional did not show a very good agreement with the established order despite its good performance in the mean error. The obtained results support the use of similar validation strategies for proper prediction of BDE or other molecular properties by DF Tmethods in subsequent related studies.</p></div></div></div>


Author(s):  
U. Khompodoeva ◽  
R. Ivanov

The results of researches on the peculiarities of metabolism in the body of horses of Yakut breed in the winter and spring periods under the environments of Central Yakutia have been presented in the article. Physiological experiments on the digestibility of the main nutrients of the feed have been carried out in the winter (February) and spring (April) periods under the environments of the physiological yard in the Yakutsk Scientific and Research Institute of Agriculture named after M. G. Safronov with using the classical method. Five mares and five geldings of Yakut breed have been selected for researches. The average live weight of mares was 378–410 kg, geldings 394–403 kg. The experimental animals had average fatness. It has been found a higher intake of energy and the main nutrients of hay as a mono feed in winter compared to the spring period. At the same time pregnant mares in winter have been consumed 103,8±3,12 MJ of metabolic energy per head/day, which was 27,3 % significantly higher than in the spring period – 75,4±2,18 MJ (P ≥ 0,999). Geldings have been consumed in the experiment 67,70±2,85 MJ, which was by 43,7 % higher than in the spring period – 38,05 ± 4,40 MJ of metabolic energy per head/day (P ≥ 0,999). Experimental animals have been housed in stalls; there was no energy expenditure for movement, so the amount of energy consumed in winter indicates the production of heat in the animal’s body. Pregnant mares per 100 kg of live weight have consumed 31,5±4,11 MJ of metabolic energy or 33,3 % more than in the spring period – 21,0±1,98 MJ; geldings have consumed 27,69±1,12, which was 41,78 % significantly higher than in the spring – 16,12 ± 0,75 MJ (P ≥ 0,999). The high intake of metabolic energy into the body of Yakut horses in winter is explained by the manifestation of adaptive mechanisms that affect the effective metabolism for survival, adapted to frequent changes in weather conditions and sharp temperature changes. The established differences in the biochemical parameters of blood serum of horses of Yakut breed are associated with changes in the consumption and digestibility of basic nutrients and energy, depending on the ambient temperature.


Author(s):  
L. Yarmots ◽  
G. Yarmots ◽  
A. Belenkaya

For ruminants, especially high-yielding animals in addition to the complete supply of animals with protein, its digestibility in the rumen is important. With low protein digestibility in the rumen, the released ammonia will be more effectively used by the rumen microflora, and the undigestible protein in the subsequent sections of the digestive tract can serve as a source of amino acids for the body. The use of concentrate mixtures with the inclusion of local, affordable and cheaper grain feeds, in particular a high-energy and protein ingredient- rapeseed presscake makes it possible to increase the milk productivity of cows throughout lactation. These presscakes are well balanced in their amino acid composition and belong to feeds whose protein has a low degree of digestibility in the rumen. The purpose of the researches was to study the digestibility of nutrients and milk productivity of cows when using the concentrate mixture with the inclusion of rapeseed presscake. In the scientific and economic experiment has been carried out on lactating cows, where the cows of the experimental group in the concentrate mixture of peas has been replaced with rapeseed presscake the digestibility of nutrients in the ration, energy metabolism and milk productivity have been studied. Studies have shown that almost all the nutrients were significantly better digested by the animals of the experimental group. Energy in milk was more allocated by cows of the experimental group by 6,29 MJ. From cows of the experimental group for 100 and 305 days of lactation has been obtained more milk by 6,27 and 7,06 %, respectively, than from control herdmates. The biochemical parameters of blood were within the limits of the physiological norm in animals of both groups. Thus, the replacement of peas with rapeseed presscake in the concentrate mixture did not have a negative influence on the metabolic processes and helped to increase the milk productivity of cows.


Author(s):  
RR Galimova ◽  
ET Valeeva ◽  
GV Timasheva ◽  
AB Bakirov

Introduction: Production of ethylbenzene and styrene (EBS) is one of the most important stages in organic synthesis. The products have general toxic, hepatotoxic, irritating and narcotic effects on the human body. Severe exposures to EВS can induce pronounced disorders of the central nervous system such as styrene sickness and encephalopathy and of peripheral blood such as leukopenia and lymphocytosis. Materials and methods: We studied homeostasis indices in 376 workers of the main professional groups engaged in the production of EBS including equipment operators, repairmen, and instrumentation and automation fitters. Results: We established an increase in lipid peroxidation by the level of malondialdehyde amid an increase in catalase activity and a decrease in blood retinol and α-tocopherol levels. We also noted an increased activity of indicator enzymes including ALT, AST, GGT, and alkaline phosphatase. Significant changes in lipid metabolism in the form of cholesterolemia, triglyceridemia, a higher atherogenic index, and lower cholesterol of non-atherogenic blood serum lipids demonstrating atherogenic changes in the body were revealed. Conclusions: The earliest prenosological disorders in the body of the examined workers included an impaired hepatic protein synthesis, the development of cytolysis processes and a change in the integrity and functional activity of the liver cell in individuals, an imbalance in the oxidant-antioxidant system, one of the reasons of which was the adverse occupational exposure to hazardous chemicals. An increase in catalase activity is a protective compensatory reaction during the activation of free radical oxidation processes.


1994 ◽  
Vol 30 (10) ◽  
pp. 213-219 ◽  
Author(s):  
Hendrik Pieters ◽  
Victor Geuke

Samples of yellow eel from various locations in the Dutch Rhine area have been analyzed for trend monitoring of mercury since 1977. In the western Rhine delta mercury levels in eels have hardly changed since the seventies, whereas in the eastern part of the Dutch Rhine area a considerable decrease of mercury concentrations in eel has occurred. Because of continuous sedimentation of contaminated suspended matter transported from upstream regions, accumulation rates and concentrations of mercury in eel in the western Rhine delta remained at a relatively high level. Analyses of methyl mercury in biota have been performed to elucidate the role of methyl mercury in the mercury contamination of the Dutch Rhine ecosystem. Low percentages of methyl mercury were observed in zooplankton (3 to 35%). In benthic organisms (mussels) percentages of methyl mercury ranged from 30 to 57%, while in fish species and liver of aquatic top predator birds almost all the mercury was present in the form of methyl mercury (&gt; 80%). During the period 1970-1990 mercury concentrations of suspended matter in the eastern Rhine delta have drastically decreased. These concentrations seemed to be highly correlated with mercury concentrations of eel (R = 0.84). The consequences of this relation are discussed.


2019 ◽  
Vol 20 (7) ◽  
pp. 661-665
Author(s):  
Cunxi Nie ◽  
Fei Xie ◽  
Ning Ma ◽  
Yueyu Bai ◽  
Wenju Zhang ◽  
...  

As a major component of biologically active compounds in the body, proteins contribute to the synthesis of body tissues for the renewal and growth of the body. The high level of dietary protein and the imbalance of amino acid (AA) composition in mammals result in metabolic disorders, inefficient utilization of protein resources and increased nitrogen excretion. Fortunately, nutritional interventions can be an effective way of attenuating the nitrogen excretion and increasing protein utilization, which include, but are not limited to, formulating the AA balance and protein-restricted diet supplementing with essential AAs, and adding probiotics in the diet. This review highlights recent advances in the turnover of dietary proteins and mammal’s metabolism for health, in order to improve protein bioavailability through nutritional approach.


Author(s):  
Kiona Hagen Niehaus ◽  
Rebecca Fiebrink

This paper describes the process of developing a software tool for digital artistic exploration of 3D human figures. Previously available software for modeling mesh-based 3D human figures restricts user output based on normative assumptions about the form that a body might take, particularly in terms of gender, race, and disability status, which are reinforced by ubiquitous use of range-limited sliders mapped to singular high-level design parameters. CreatorCustom, the software prototype created during this research, is designed to foreground an exploratory approach to modeling 3D human bodies, treating the digital body as a sculptural landscape rather than a presupposed form for rote technical representation. Building on prior research into serendipity in Human-Computer Interaction and 3D modeling systems for users at various levels of proficiency, among other areas, this research comprises two qualitative studies and investigation of the impact on the first author's artistic practice. Study 1 uses interviews and practice sessions to explore the practices of six queer artists working with the body and the language, materials, and actions they use in their practice; these then informed the design of the software tool. Study 2 investigates the usability, creativity support, and bodily implications of the software when used by thirteen artists in a workshop. These studies reveal the importance of exploration and unexpectedness in artistic practice, and a desire for experimental digital approaches to the human form.


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