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The paper presents the results of the experiments conducted to study the effect of stimulating maturation and ovulation with different types of hormones on the main parameters characterizing the artificial reproduction process of Silurus glanis L. European catfish used in artificial breeding experiments (body weight = 4.0 - 10.0 kg / ex., age 5-8 years) were raised in ponds within the experimental base of the Fish Culture Research and Development Station Nucet, Romania. For induction of maturation and ovulation, c...

The paper presents the results of the experiments conducted to study the effect of stimulating maturation and ovulation with different types of hormones on the main parameters characterizing the artificial reproduction process of Silurus glanis L. European catfish used in artificial breeding experiments (body weight = 4.0 - 10.0 kg / ex., age 5-8 years) were raised in ponds within the experimental base of the Fish Culture Research and Development Station Nucet, Romania. For induction of maturation and ovulation, c...

Land degradation processes facilitated by geomorphological changes in the Berbe?ti Mining Basin contribute to highlighting the mining anthropic landscape, so the relief changes its morphological configuration. During morphological exploitation, the morphological alteration reaches a maximum value, being dependent on the exploitation and construction phase of the tailings dumps. Morphological alteration is closely related to the location of the quarries and the morphology of the surrounding areas. In the case of th...

In order to carry out the lignite extraction activity, the quarries in Oltenia basin occupy land areas, which before the exploitation had another destination. From the researches carried out it was found that the most occupied areas are the woodlands. The most affected will be M?t?sari locality with the neighboring villages (Br?det, Runcurel, M?t?sari, Croici), of which 341 households (274 households from Runcurelu village, 60 households from the village of Croici, 5 houses from M?t?sari and 2 households from Br?d...

The assessment of explosion-protected electrical equipment is based on the requirements of the ATEX 2014/34 / EU Directive through tests and verifications carried out according to harmonized standards (SR EN 60079-0) and the standard for the type of protection of the equipment) which include requirements for protection of equipment by flameproof enclosure. Assessment of explosion-protected electrical equipment is carried out under the provisions of the ATEX Directive 2014/34 / EU through tests and checks carried o...

The researches have emphasized that on the improved sandy soils the maize yields (the average of fertilizer rates) is higher when the corn is cropped within a crop rotation than in monoculture (table 1, figure 1). The applying of nitrogen fertilizers on improved sandy soil, along with phosphorus ones is an endorsed measure for increasing maize yield (table 2, figure 2). The influence of crop rotation and fertilizer applying has recorded high yield outputs with all experimented crop rotations as compared with the m...

Klebsiella pneumoniae and Acinetobacter spp. strains are opportunistic pathogens frequently involved in the etiology of nosocomial infections in immunocompromised patients. A major factor amplifying the risk of these infections is prolonged period of hospitalised patients, especially in intensive care units. Statistically, the strains belonging to the Enterobacteriaceae family and those of the Acinetobacter spp. are ranked the first and respectively, the second among Gram negative bacilli, whose incidence has incr...

Klebsiella pneumoniae and Acinetobacter spp. strains are opportunistic pathogens frequently involved in the etiology of nosocomial infections in immunocompromised patients. A major factor amplifying the risk of these infections is prolonged period of hospitalised patients, especially in intensive care units. Statistically, the strains belonging to the Enterobacteriaceae family and those of the Acinetobacter spp. are ranked the first and respectively, the second among Gram negative bacilli, whose incidence has incr...

The paper deals with the damage of the concrete surface by defreezing chemical agents. The first part of research is oriented to composition, design of concrete and test of fresh (slump test, bulk density of fresh concrete) and hardened concrete (compressive strength, bulk density of hardened concrete). The second part is oriented to test of concrete surface resistance against the effect of defreezing chemical substances. Two protective coatings were used. Tests were performed on samples without coating and on sam...

At the present time, the widespread introduction of cost-effective production of a method for processing pressure in the solid phase of polymeric materials is hampered by the fact that despite the possibility of improving the strength and a number of technological characteristics of materials, high residual orientational stresses are created in the products, which over time (or when heated), lead to a change in the geometric shape and dimensions of the product. In this connection, it is promising to use the stage ...

Lonicera japonica is a climbing plant which can grow up to 10 m in length; the young stems are often hairy, while mature stems display a brownish bark and are empty on the inside, the leafs are oval and long, the flowers are known for their appealing perfume, white and yellow in colour, and the fruit is small and black. It is a persistent climbing plant, which offers an impressive bouquet of colour, flowers and an inviting perfume, which made it famous in our country as well as abroad. During the study, two rootin...

Lonicera japonica is a climbing plant which can grow up to 10 m in length; the young stems are often hairy, while mature stems display a brownish bark and are empty on the inside, the leafs are oval and long, the flowers are known for their appealing perfume, white and yellow in colour, and the fruit is small and black. It is a persistent climbing plant, which offers an impressive bouquet of colour, flowers and an inviting perfume, which made it famous in our country as well as abroad. During the study, two rootin...

Campsis radicans is part of the Bignoniaceae family and has the appearance of a deciduous vine almost always green. It can reach up to 12 m in length, its leaves are a shiny, dark green and its flowers display a yellow ? orange colour, sometimes tending towards red, with a tubular form, 8 cm long and approximately 4 cm wide. During the experiment, we monitored the influence of cutting length on the cutting rooting rate, the main purpose being the analysis of the influence of the three experimental factors (sublaye...

Campsis radicans is part of the Bignoniaceae family and has the appearance of a deciduous vine almost always green. It can reach up to 12 m in length, its leaves are a shiny, dark green and its flowers display a yellow ? orange colour, sometimes tending towards red, with a tubular form, 8 cm long and approximately 4 cm wide. During the experiment, we monitored the influence of cutting length on the cutting rooting rate, the main purpose being the analysis of the influence of the three experimental factors (sublaye...

Heavy metals ions can be removed from industrial wastewaters by numerous methods, such are precipitation, electrolysis, electrodyalisis etc. Sorption, i.e. adherence of a dissolved specie on solid sorbent, may be a cost-effective alternative to these conventional methods, in case a low-cost material is used as sorbent. Heavy metals are well sorbed by zeolites, clay minerals, char coal, carbon nanomaterials or numerous biopolymers. In this research, waste ceramic was used as sorbent for heavy metals (Cu, Pb, Zn). T...

Fractal geometry in recent years became a useful tool used in many scientific fields. One of the directions of development of that tool was also an attempt as using it for describing the morphology and granulometry of solid phase contained in various suspensions. While monofractals are used primarily to describe the space occupied, multifractals can be used to describe entire sets of data. (The set of data could be: various data series, distributions of physical quantities (such as, for example, particle size dist...

The paramagnetic properties of core samples from the section of the reference well was investigated on the basis of a representative sample (204 samples, along 1562, 9? ? 1478,4m depth and 84,5m powerful) by electron paramagnetic resonance (EPR) for mineral associations of the Liven horizon of the Upper Devonian deposits of the Volga-Ural region of the Republic of Tatarstan. In fact, according to the results of the EPR studies, the Liven?s horizon is a continuation of the regressive cycle of calcareous deposits of...

The concepts of danger, uncertainty and risk are often used intuitively and inaccurately not only in common language but also in the media where it is unfortunately commonplace and last but not least in scientific circles. The clan defines uncertainty, danger and risk, and graphically visualises the aspects it encompasses. The graph is defined by two dimensions, namely probability and objectivity. The notion of danger is the least unequivocal. This is an object property that is a threat. Uncertainty was mathematic...

Explosive risk occurs in all activities involving flammable substances in the form of gases, vapors, mists or dusts which, in mixture with air, can generate an explosive atmosphere. As explosions can cause human losses and huge material damage, the assessment of the explosion risk and the establishment of appropriate measures to reduce it to acceptable levels according to the standards and standards in force is of particular importance for the safety and health of people and goods.There is no yet a recognized meth...

In connection with the production and distribution of drinking water it is necessary to take into consideration the possibility of an emergency, which in this concept means undesirable effects of forces and phenomena endangering human health, property, goods, and, last but not least, also the environment. These are natural hazards and anthropogenic hazards or their combination. It is therefore necessary to eliminate at least partially these hazards and minimize their adverse effects. To eliminate hazards, a risk a...

Modern socio-economic systems, as objects of management, are complex spatially distributed systems and territories, which indicates the need to develop and apply geo-information management. Natural, man-made and social processes of territory development unfold in time and in space and are characterized by a variety of parameters described by a random vector. The components of the natural and climatic potential are random non-stationary processes, the study of which leads to the necessity of forming, according to t...

The system of training people in the area of population protection and crisis management consists of two basic levels of education. The first level includes professional qualification education through the acquisition of a qualification or higher qualification of higher professional education, higher education in a bachelor or master study program or in higher study programs. Second level focus on further vocational education is intended for target groups of workers with a focus on the deepening of the skills requ...

The paper deals with RM/RA CRAMM an original methodology is a comprehensive risk assessment method for crisis management, which consists of identifying, analyzing and assessing risk. Quantitative outcomes serve as the basis to determine the priorities of risk management to prepare preventive measures and response powers and facilities. The methodology is applicable to a wide range of risk types, including natural disasters, technological risks, including risks of natural fires, or crime risks and other risks of a ...

The main aim of our paper is to analyze and make proposals on the effective management of individual items that have a significant impact on elimination of industrial risks. Attention is paid to the issue of management of industrial risks in the industrial enterprises in Slovakia. To obtain the necessary data, we draw information from internal materials of enterprises. For management, it is important to know what risks it could negatively affect them. Identification, quantification of impacts and subsequent propos...

Millennials or generation Y is the largest and most diverse generation to ever attend university. They have high expectations towards teachers, the study environment and also to course mates when compared with previous generations of learners. Millennials rely on recommendations from peers and friends more than from experts, which refers to the importance they assign to their lives. In the present paper, the authors discuss the role of the social environment in the study process that millennial learners present. T...

The purpose of this paper is to present an analysis for Romania?s energetic strategy designed for 2016-2030 according to the EU direction. Energetic security for a country is the most important after the IT sector, and also the knowledge to administrate key energetic resources. Import/ export of energetic resources is the question of how Romania will decide to develop or not its natural resources. The methodology will be a SWOT analysis, a personal point of view about the strategy. The environmental impact also is...

The main purpose of this study is to highlight the actual state of energy production and consumption in Romania and to emphasize where there is potential for either reducing the greenhouse gas emissions by using more efficient heating and cooling systems for buildings or reducing the greenhouse gas emissions by using less fossil fuels and more renewable energy sources that can be tapped in Romania. In Romania despite a good thermal insulation degree for newly constructed buildings in the past 5-10 years there is s...

The paper examines the waste management issues in the villages annexed to administrative-territorial units of the Romanian cities which have been frequently neglected by urban waste operators. The lack of waste collection services in such peri-urban communities favored the illegal waste disposal practices particularly prior to EU accession. The extension of waste collection services from main cities to such areas is compulsory in order to mitigate the environmental risks and the public health threats. The paper es...

Recently, satellite monitoring has recognized a wide use in estimating ecological situations in vast areas, including ice cover layer; monitoring the negative effects of earthquakes, volcanic eruptions, landslides, mudflows and much more. Drought is one of the negative natural phenomena, which in its extreme forms can lead to life losses and substantial property damage. Satellite monitoring can be used to observe the change in lake coastline due to drought and predict the directions of further changes. The paper p...

For many years, quality of life has been associated only with the economic development, and the gross domestic product has been considered as the main indicator of the quality of life and human well-being in particular region. In last decades, new approaches for evaluation of this phenomenon have been defining. The main goal of this paper is to analyse the European citizen?s subjective perception of the quality of life in the context with economic indicators. For this purpose, data from European Union Statistics o...

Bioluminescence field in the Black Sea is formed mainly by accumulations of luminous dinoflagellates, which along with other microalgae are an important component of marine ecosystems. The study of bioluminescence field variability, which reflects the structural and functional parameters of phytoplankton, redounds to a more detailed insight into its spatial and temporal heterogeneity. The article presents the analysis of bioluminescence field structure, measured in five marine expeditions onboard the research vess...

The paper deals with the creation of historical maps in the environment of geographic information systems on example of prepared historical atlas with an interim title Czech Historical Atlas. At the information age, efforts are being made to move cartographic products into the electronic Internet environment, large atlas works not excluding. The Czech Historical Atlas is a new piece of historical atlas cartography devoted to selected themes of the history of Czech Lands in the twentieth century and was, in accorda...

Land is a common wealth of citizens of the state and the heritage of future generations. It is a basic and non-renewable natural resource and forms an integral part of the Earth's ecosystems. It is and it will remain the basis of Slovakia's environmental, economic and social potential, therefore it must be carefully protected from damage and unjustified decrease in its size, quality and volume. Protection and use of agricultural land is a public interest (public good). Since the validity of Act no. 140/2014 Coll. ...

Despite the existence of many technologies allowing for recovery of coal combustion products (CCPs), they still remain a product that is problematic enough, with their industrial use in the world lying in the range 40-60%. The remaining CCPs produced in the energy industry end up in landfills or are stored, thus losing their property. One of the main directions of CCPs recovery has been, for many years, the underground mining industry, where they are used, among others, as fillings in mining excavations, component...

Milk and dairy products are foods with significant nutritional influence in maintaining the health of the human condition. Modern medicine recommends for an adult a daily ration of at least 400 ml of milk or the equivalent of its derived forms. Sheep cheese, taken into study, is a product derived from sheep's milk, prepared according to the traditional recipes of hilly and alpine habitats of Banat, areas with tradition in the consumption and processing of sheep's milk. The quality of this basic product in the food...

Milk and dairy products are foods with significant nutritional influence in maintaining the health of the human condition. Modern medicine recommends for an adult a daily ration of at least 400 ml of milk or the equivalent of its derived forms. Sheep cheese, taken into study, is a product derived from sheep's milk, prepared according to the traditional recipes of hilly and alpine habitats of Banat, areas with tradition in the consumption and processing of sheep's milk. The quality of this basic product in the food...

Earthworms of species Eisenia fetida (Savigny 1826) (red wiggler worm), are known as eaters of a large range of organic matter, being considered from this point of view real solvers of several issues regarding the wastes management. This study intended to show that paper wastes (copy paper) can be eaten by earthworms Eisenia fetida and thus this type of waste can be managed by introducing it into the diet of this earthworm species. The objectives of the study were two: 1) to determine the relationship existing bet...

An important problem in assessing water quality is that the data on water pollution and their analysis are formed over the previous period, and as a result, it is difficult to assess the current status of water resources, the more likely it is to predict it for the future period, which would allow timely action on improvement of the ecological state of water. The purpose of the work is to evaluate the possibility of using neural networks to simulation of surface water pollution. The data are derived from the resul...

For underground extraction of coal are running a complex network mining vertical, horizontal and inclined role extraction, transportation and evacuation on the surface. Associated system of mining works has the ventilation network to ensure the oxygen necessary for workers, diluting explosive gases and toxic substances and evacuated heat and humidity from the underground. For air evacuation from the underground workings, from the point of entry of fresh air to the polluted air exit point, is used powerful fans loc...

The deposits in Poland are appearing in the Miocene gypsum sediments located on the northern, marginal part of the Carpathians Foredeep subsidence basin. Up to the fifties of 20th century and the discover of the biggest sulphur deposits in all the world, the sulphuric mining existed only in Swoszowice near Krakow, Czarkowy near Stasz?w, Psz?w near Rybnik and also Pos?dza, located about 30 km northeast of Krakow. The first record of organised mining in Swoszowice appears in document dated 1415. It was a licence for...

The erosion of the soil, through the changes it brought to the soil cover and by the direct and indirect damage it produced, amplified and diversified the research in the field. In the soil erosion study, a particular importance is given to the slopes, showing, apart from their inclination, the exhibition, the uniform or varied appearance, the degree of fragmentation, the degree of erosion. The slope is expressed in percents and it is determinate the length of this slope (declivity), because these characteristics ...

Snow blizzards and snow drifts have recently proven as major winter threat for the road traffic, communications and social life in northeast Bulgaria. The geographical location of these regions with respect to the tracks of the winter Mediterranean cyclones and cold advections from north and northeast makes them indeed prone to this risk, but one would like to know if there is a significant rise in their number and severity. The main goal of the current study is exactly the investigation of the contemporary tenden...

Countries around the world are concerned with securing enough fuel and energy for their national economy. At present it is important supply of buildings with energy and their efficient consumption. The economical use of energy and fuel in the non-productive sphere consists of rationalizing energy consumption in the building and energy supply to the buildings. The most energy consumed is recording heating of buildings the reason is to cover thermal losses. The European Union is focusing on supporting the modernizat...

Mari El is one of the most ecologically clean areas of Russia. The local woods are famous throughout Russia and is the largest forest on the Volga river, which contain large amounts of wood and at the same time, every year increasing its use for recreation. Therefore, recreational use should pay a lot of attention. This paper examines the state of objects in the mass use of forest resources for recreational purposes on the territory of the coastal zone of suburban lakes. Conducted socio-environmental assessment at...

In the last few years, the world of Internet communications as well the application?s requirements has changed significantly in terms of speed, quality of service, computing, storing, security, energy consumption, availability, and etc. Everything gets connected to the Internet and accessible from anywhere, anytime. The traditional networks based on distributed control and network transport protocols are not enough flexible, and are hard to be managed. To overwhelm this problem, the software defined networking (SD...

Soil pollution with heavy metals is a major global environmental problem for many ecosystems. The exploitation and processing of non-ferrous ores are one of the most important anthropogenic sources of soils contamination with heavy metals. Romania is a rich country in mineral resources, therefore it has a long history of their exploitation. In this regard, there are several areas for the non-ferrous ores extraction, and one of them is located in the Metaliferi Mountains, where the tradition in gold, silver and oth...

Various techniques for ground improvement are in use many decades to reduce the settlement of embankments and to accelerate the consolidation settlement of soft soil layers such as preloading, soil replacement, lime/cement stabilization, dynamic consolidation, vibro-stabilization, vertical drains, deep mixing methods or reinforced soil. Moreover, other more innovative solutions recently developed are also available, including natural and synthetic fibres or tyre powder penetration. Vertical drains, stone columns, ...

The main goal of compaction is decreasing the porosity of soils. Gravel columns belong to relatively new methods of improving the soil characteristics. Using them it is possible to expect to accelerate the consolidation of the subsoil, but also increasing the bearing capacity and decreasing the settlement of initially unadvisable soils. Because it was missing adequate research in this field, the design of gravel columns was based a long time on empirical experiences. Particularly based on foreign knowledge are pre...

Archaeological objects, such as fortification ramparts and burial mounds are widely spread on the Russian Plain and commonly buried soils have well preserved beneath. For Late Holocene, especially after 2500 BP, the climatic trends for the Russian Plain are still uncertain. Chronosequences of surface soils and soils buried under defensive ramparts of ancient settlements Mukhino, Ksizovo and Degtevoe in the Central Forest-Steppe zone, Lipetsk region was studied. Five defensive earthworks differ in age from 2500 to ...

Asphaltenes are one of the very important components of heavy oil. They define the viscosity of oil and provide significant problems in production, transportation and refinery of heavy crude oil. Investigation of their agglomerations under various influence parameters is necessary for optimization of production technology. The experimental results of frequency and concentration attenuation dependency of ultrasound waves in asphaltene suspensions are discussed. A toluene and binary mixture (toluene:n-heptane) with ...