scholarly journals New Challenges Towards the Ecological Management of Paliastomi Lake Will Significantly Improve the Local Environment With Far-Going Global Consequences

2021 ◽  
Author(s):  
Grigol Abramia ◽  
Leila Gverdtsiteli ◽  
Dimitri Eristavi ◽  
Besik Kalandadze ◽  
Akaki Girgvliani ◽  
...  
Keyword(s):  
Pathogenic Bacteria ◽  
Municipal Wastewater ◽  
Migratory Birds ◽  
Local Environment ◽  
Aquatic Life ◽  
Bacterial Pollution ◽  
Migratory Waterfowl ◽  
Current State ◽  
The Moment ◽  
State Of The Environment

Abstract The publication is addressing the problems of pollution from agricultural sources; municipal wastewater and industry in line with the bacterial pollution caused by migratory waterfowl of Paliastomi Lake that is an internationally recognized habitat, wintery and transit area of the birds and an important tourism site. It reviews: the current state of the environment of Paliastomi Lake at the moment of the chemical and microbiological research and mathematical simulation modeling of possible dissemination of polluting chemicals and bacterial pathogens; pollution by nutrient-rich water causing large blooms of algae and aquatic plants that in its turn leaves little oxygen for fish and other aquatic animals, resulting in the eutrophication followed by suffocation of aquatic life. According to the research provided, the publication recommends ongoing monitoring of not only the lake's inflowing waters, but also seasonal sources of bacterial pollution caused by migratory birds. According to monitoring, the integration of constructed wetlands, localized spraying of bacteriophage cocktails, and feeding the birds, who are potential carriers of pathogenic bacteria, with food supplemented with BCs will help limit bacterial contamination, improve the habitat for local and migratory waterfowl, and ensure the biosecurity of the area.

scholarly journals New challenges towards ecological management of Paliastomi Lake will significantly improve local environment with far-going global consequences

2021 ◽  
Author(s):  
Grigol Abramia ◽  
Leil Gverdtsiteli ◽  
Dimitri Eristavi ◽  
Besik Kalandadze ◽  
Akaki Girgvliani ◽  
...  
Keyword(s):  
Simulation Modeling ◽  
Municipal Wastewater ◽  
Local Environment ◽  
Ecological Management ◽  
Aquatic Life ◽  
Bacterial Pollution ◽  
Migratory Waterfowl ◽  
Current State ◽  
The Moment ◽  
State Of The Environment

Abstract The publication is addressing the problems of pollution from agricultural sources; municipal wastewater and industry in line with the bacterial pollution caused by migratory waterfowl of Paliastomi Lake that is an internationally recognized habitat, wintery and transit area of the birds and an important tourism site. It reviews: the current state of the environment of Paliastomi Lake at the moment of the chemical and microbiological research and mathematical simulation modeling of possible dissemination of polluting chemicals and bacterial pathogens; pollution by nutrient-rich water causing large blooms of algae and aquatic plants that in its turn leaves little oxygen for fish and other aquatic animals, resulting in the eutrophication followed by suffocation of aquatic life.

scholarly journals New Challenges Towards the Ecological Management of Paliastomi Lake Will Significantly Improve the Local Environment With Far-Going Positive Global Consequences

2021 ◽  
Author(s):  
Grigol Abramia ◽  
Leila Gverdsiteli ◽  
Dimitri Eristavi ◽  
Besik Kalandadze ◽  
Akaki Girgvliani ◽  
...  
Keyword(s):  
Pathogenic Bacteria ◽  
Municipal Wastewater ◽  
Analytical Data ◽  
Point Sources ◽  
Water Levels ◽  
Biological Research ◽  
Legal Requirements ◽  
Aquatic Life ◽  
Bacterial Pollution ◽  
Definition Of

Abstract BackgroundThe purpose of the research was to provide the review of the institutional and legal requirements and evaluation of the existing sanitary-biological research of the Lake Paliastomi waters; study the current state of environment, problems of pollution from agricultural sources, municipal wastewater and industry in line with the bacterial pollution caused by migratory waterfowl of the Lake Paliastomi, an internationally recognized habitat, wintery and transit area of the birds and an important tourism site. ResultsHave been prepared the analytical data on: the review of the institutional and legal requirements; evaluation of the existing sanitary-biological research of the following waters in the Lake; definition of dynamics of sanitary-microbial indicators in flowing waters; study of biological characteristics of secreted pathogenic agents and definition of their vulnerability towards bacteriophages; mathematical simulation model on different scenarios of dissemination of chemical pollutants and pathogenic bacteria in the lake Paliastomi. The researchers identified that the pollution by nutrient-rich water causing large blooms of algae and aquatic plants that in its turn leaves little oxygen for fish and other aquatic animals, resulting in the eutrophication followed by suffocation of aquatic life.ConclusionsThe solution of problem requires complex respond: the selected spring sites, regular monitoring of nitrate contents and other basic physico-chemical water parameters; simultaneous, continuous discharge recording; monitoring and maintaining water levels in the wetlands; removing sediment and organic debris build up in wetland pond and etc.Mathematical modeling of dissemination of the pathogenic bacteria in the Lake Paliastomi enables us to permanently monitor not only the inflowing waters of Paliastomi Lake, but seasonal sources of bacterial pollution due to the migratory birds. In line with monitoring, localized prophylactic point sources spraying of Salmonella bacteriophage cocktail (SBC) by agricultural drones will be useful to restrain bacterial contamination.

Pre-hatching and post-hatching environmental factors related to epigenetic mechanisms in poultry

2021 ◽  
Author(s):  
A Dunislawska ◽  
E Pietrzak ◽  
R Wishna Kadawarage ◽  
A Beldowska ◽  
M Siwek
Keyword(s):  
Pathogenic Bacteria ◽  
Incubation Temperature ◽  
Research Area ◽  
Poultry Production ◽  
Epigenetic Mechanisms ◽  
In Ovo ◽  
Current State ◽  
Open Questions ◽  
Nutrition Supplementation ◽  
The Moment

Abstract Epigenetic modifications are phenotypic changes unrelated to the modification of the DNA sequence. These modifications are essential for regulating cellular differentiation and organism development. In this case, epigenetics controls how the animal's genetic potential is used. The main epigenetic mechanisms are microRNA activity, DNA methylation and histone modification. The literature has repeatedly shown that environmental modulation has a significant influence on the regulation of epigenetic mechanisms in poultry. The aim of this review is to give an overview of the current state of the knowledge in poultry epigenetics in terms of issues relevant to overall poultry production and the improvement of the health status in chickens and other poultry species. One of the main differences between birds and mammals is the stage of embryonic development. The bird's embryo develops outside its mother, so an optimal environment of egg incubation before hatching is crucial for development. It is also the moment when many factors influence the activation of epigenetic mechanisms, i.e., incubation temperature, humidity, light, as well as in ovo treatments. Epigenome of the adult birds, might be modulated by: nutrition, supplementation and treatment, as well as modification of the intestinal microbiota. In addition, the activation of epigenetic mechanisms is influenced by pathogens (i.e., pathogenic bacteria, toxins, viruses and fungi) as well as, the maintenance conditions. Farm animal epigenetics is still a big challenge for scientists. This is a research area with many open questions. Modern methods of epigenetic analysis can serve both in the analysis of biological mechanisms and in the research and applied to production system, poultry health and welfare.

scholarly journals Removal of bacterial pollution from municipal wastewater using electrocoagulation technique

2021 ◽  
Vol 1058 (1) ◽  
pp. 012024
Author(s):  
Israa L. AL-Jaryan ◽  
Rand L. Al-Jaryan ◽  
Sarab A. Jouda ◽  
Shmlan Alotaibi ◽  
Mawada Abdellatif ◽  
...  
Keyword(s):  
Municipal Wastewater ◽  
Bacterial Pollution

Deadlock or new opening? Current state and prospects for development of Lithuanian-Belarusian relations

2021 ◽  
Vol 19 (3) ◽  
pp. 121-141
Author(s):  
Justyna Olędzka
Keyword(s):  
International Relations ◽  
Presidential Election ◽  
Nuclear Power ◽  
Future Prospects ◽  
Bilateral Relations ◽  
Current State ◽  
The Future ◽  
Multi Level ◽  
The Moment ◽  
The Eu

The purpose of this article is to discuss the trajectory of Belarusian-Lithuanian relations with a particular focus on the period after the 2020 Belarusian presidential election, which resulted in a change in international relations in the region. This was the moment that redefined the Lithuanian-Belarusian relations, which until 2020 were satisfactory for both sides (especially in the economic aspect). However, Lithuania began to pursue a reactive policy of promoting the democratisation of Belarus and provided multi-level support to Belarusian opposition forces. The current problems in bilateral relations (e.g., the future of Belarusian Nuclear Power Plant located in Astravyets) have been put on the agenda for discussion at the EU level, while the instruments of a hybrid conflict in the form of an influx of immigrants into Lithuania, controlled by the Belarusian regime, have become a key issue for the future prospects of relations between Belarus and Lithuania.

Problems of Modeling Working Processes in Pneumohydraulic Systems and Units at Various Stages of the Product Life Cycle

2021 ◽  
pp. 60-75
Author(s):  
Y.V. Kyurdzhiev
Keyword(s):  
Life Cycle ◽  
Product Life Cycle ◽  
Dynamic Mode ◽  
Workflow Modeling ◽  
Pressure Regulator ◽  
Modeling Tools ◽  
Product Life ◽  
Current State ◽  
The Moment ◽  
Maintenance Requirements

The article presents the result of the analysis of the problems of maintenance of on-board pneumatic systems and units in terms of the requirements for completeness and efficiency of the requested information. It is shown that the current state of the workflow modeling tools of these systems do not fully meet the maintenance requirements at all stages of the product life cycle. An approach to modeling pneumohydraulic systems and units is proposed, as well as ways to reduce the time from the moment of setting a problem requiring the development of a new mathematical model to obtaining adequate simulation results. The efficiency of the proposed approach is demonstrated by the example of a pressure regulator operating in a dynamic mode. The possibilities and ways of implementing modeling tools based on the proposed approach are shown.

scholarly journals Imitating a Safe Human Driver Behaviour in Roundabouts Through Deep Learning

2020 ◽  
Vol 19 (1) ◽  
pp. 85-88
Author(s):  
A. S. J. Cervera ◽  
F. J. Alonso ◽  
F. S. García ◽  
A. D. Alvarez
Keyword(s):  
Machine Learning ◽  
Deep Learning ◽  
Autonomous Vehicles ◽  
Autonomous Vehicle ◽  
Driver Behaviour ◽  
Safety Issues ◽  
Current State ◽  
Surrounding Environment ◽  
Human Driver ◽  
State Of The Environment

Roundabouts provide safe and fast circulation as well as many environmental advantages, but drivers adopting unsafe behaviours while circulating through them may cause safety issues, provoking accidents. In this paper we propose a way of training an autonomous vehicle in order to behave in a human and safe way when entering a roundabout. By placing a number of cameras in our vehicle and processing their video feeds through a series of algorithms, including Machine Learning, we can build a representation of the state of the surrounding environment. Then, we use another set of Deep Learning algorithms to analyze the data and determine the safest way of circulating through a roundabout given the current state of the environment, including nearby vehicles with their estimated positions, speeds and accelerations. By watching multiple attempts of a human entering a roundabout with both safe and unsafe behaviours, our second set of algorithms can learn to mimic the human’s good attempts and act in the same way as him, which is key to a safe implementation of autonomous vehicles. This work details the series of steps that we took, from building the representation of our environment to acting according to it in order to attain safe entry into single lane roundabouts.

Evaluation of enteromicroflora of common crane (Grus grus) as a potential reservoir of bacterial antimicrobial resistance

Biologia ◽  
2017 ◽  
Vol 72 (9) ◽  
Author(s):  
Ľudmila Hamarová ◽  
Matej Repel ◽  
Peter Javorský ◽  
Peter Pristaš
Keyword(s):  
Antimicrobial Resistance ◽  
Pathogenic Bacteria ◽  
Migratory Birds ◽  
Potential Reservoir ◽  
Grus Grus ◽  
Common Crane ◽  
The Common

AbstractMigratory birds could be important vectors of pathogenic bacteria and antimicrobial resistance transmissions over long distances. The common crane (

A Context-Based and Policy-Driven Method to Design and Develop Composite Web Services

2010 ◽  
pp. 310-328
Author(s):  
Zakaria Maamar ◽  
Djamal Benslimane
Keyword(s):  
Web Services ◽  
User Needs ◽  
Design And Development ◽  
Graphical Notation ◽  
Current State ◽  
Behavior Specification ◽  
Composite Web Services ◽  
Composition Operations ◽  
State Of The Environment ◽  
Development Methods

Web services are nowadays attracting the attention of both academia and industry. However, a very little has so far been accomplished in terms of design and development methods that assist those who are responsible for specifying and running applications based on Web services. For this purpose, we developed CP4WS that stands for Context and Policy for Web Services. CP4WS is a context-based and policy-driven method for designing and developing composite Web services. Policies manage various aspects related to Web services like participation in composition and adjustment due to changes in the environment, and context provides the necessary information that enables for instance to trigger the appropriate policies and to regulate the interactions between Web services according to the current state of the environment. CP4WS consists of several steps such as user needs identification and Web services behavior specification. Each step has a specific graphical notation that facilitates the representation, description, and validation of the composition operations of Web services. A running scenario that illustrates the use of CP4WS is presented in the article as well.

scholarly journals Bacteria from the Genus Arcobacter Are Abundant in Effluent from Wastewater Treatment Plants

2020 ◽  
Vol 86 (9) ◽  
Author(s):  
Jannie Munk Kristensen ◽  
Marta Nierychlo ◽  
Mads Albertsen ◽  
Per Halkjær Nielsen
Keyword(s):  
Wastewater Treatment ◽  
Pathogenic Bacteria ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Amplicon Sequencing ◽  
Rrna Gene ◽  
Content Type ◽  
Effluent Quality ◽  
Culture Independent ◽  
Influent Wastewater

ABSTRACT Pathogenic bacteria in wastewater are generally considered to be efficiently removed in biological wastewater treatment plants. This understanding is almost solely based on culture-based control measures, and here we show, by applying culture-independent methods, that the removal of species in the genus Arcobacter was less effective than for many other abundant genera in the influent wastewater. Arcobacter was one of the most abundant genera in influent wastewater at 14 municipal wastewater treatment plants and was also abundant in the “clean” effluent from all the plants, reaching up to 30% of all bacteria as analyzed by 16S rRNA gene amplicon sequencing. Metagenomic analyses, culturing, genome sequencing of Arcobacter isolates, and visualization by fluorescent in situ hybridization (FISH) confirmed the presence of the human-pathogenic Arcobacter cryaerophilus and A. butzleri in both influent and effluent. The main reason for the high relative abundance in the effluent was probably that Arcobacter cells, compared to those of other abundant genera in the influent, did not flocculate and attach well to the activated sludge flocs, leaving a relatively large fraction dispersed in the water phase. The study shows there is an urgent need for new standardized culture-independent measurements of pathogens in effluent wastewaters, e.g., amplicon sequencing, and an investigation of the problem on a global scale to quantify the risk for humans and livestock. IMPORTANCE The genus Arcobacter was unexpectedly abundant in the effluent from 14 Danish wastewater treatment plants treating municipal wastewater, and the species included the human-pathogenic A. cryaerophilus and A. butzleri. Recent studies have shown that Arcobacter is common in wastewater worldwide, so the study indicates that discharge of members of the genus Arcobacter may be a global problem, and further studies are needed to quantify the risk and potentially minimize the discharge. The study also shows that culture-based analyses are insufficient for proper effluent quality control, and new standardized culture-independent measurements of effluent quality encompassing most pathogens should be considered.

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