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Observations on the growing conditions of the siberian dwarf hamster (phodopus sungorus)
No full textThe Siberian dwarf hamster is a rodent that is part of the Cricetinae family, having its spreading area in the steppes in northeastern Kazakhstan and northeastern Siberia. The Siberian dwarf hamster is small in size, having a maximum length of 9 cm and a weight of 19-45 g. It has a fine, striped fur, which from winter to summer has different shades. Its diet is omnivorous, being mainly composed of dried seeds and fruits. The Siberian dwarf hamster prefers dark places where they can hide and also love to dig the galleries into the ground. This paper presents the influence of environmental factors on the growth conditions of the Siberian dwarf hamster. Ambient factors are the temperature and humidity of the air, the level of light, but also the cage dimensions in which the bedding inside it also has a very important role
Example of maintaining soil humidity in the aeration area and extracting it from the roots of perennial grasses
No full textThe water and the soil provide in the complex the existence of all living things. Water is necessary for plants for
sweating, namely for evaporative adjustment of the leaf temperature regime. Soil humidity loss occurs due to increased
evaporation as a result of its compaction under the influence during the work shift agricultural soil aggregates. The
territory of the Republic of Moldova is located in the temperate climatic area. Taking into account the concrete values
of the humidity coefficient for different climatic zones, we can state that the multi-annual rainfall deficit in the North
Zone of the Republic is about 10-30%, in the Center Zone - 30-40% and in the South Zone - 40 50%. Movement of
water in the ”soil-plant” system is carried out by the inflow of moisture from the soil through the roots into the plant
and the expenditure of moisture by the plants on evaporation into the atmosphere. The speed of motion is determined by
the intensity of transpiration, which depends on the intensity of atmospheric conditions. W.R. Gardner (1975) considers
the root of a plant as a cylinder of infinite length with the same radius along the entire length and the same ability to
absorb moisture, suggesting also that soil moisture can move in the radial direction. As a result, we plotted the changes
in the water potential of the soil as a function of the distance from the root, determined the dependencies for finding the
potential on the root surface to estimate the influence of the soil potential on the rate of inflow of moisture to the root.
Over the past 15 years in the Republic of Moldova, research into the processes of selection of moisture by plant roots in
the soil has continued. Developments are aimed at evaluating nonlinear moisture absorption patterns for a number of
crops (cotton, wheat, maize, etc.)
The quality of agricultural lands from the administrative territory of Răducaneni, Iaşi county
No full textSoil represents the result of action taken by various processes determined by environmental factors, continously
adapting to natural and/or artificial changes of the environment, recording through certain phenomena, processes and
characteristics, the main evolutionary moments. Agricultural land quality is determined by assessment, according to
which, in Romania, agricultural land belongs to five quality classes differentiated based on their assessment grades. The
assessment study is conducted on various agricultural lands, which should be as homogeneous as possible from the
viewpoint of their environmental factors and vegetation factors. In the Răducăneni administrative-territorial unit, the 70
simple soil units and 6 complex soil units identified, belonging to the Protisoils, Cernisoils, Luvisoils, Hydrisoils and
Antrisoils classes, were included, depending on their slope and exposure, in elementary land units, which resulted in
171 simple ecologically homogeneous territories and 36 complex ones. Relying on the land quality and productivity
assessment grades calculated for the 207 ecologically homogeneous territories, we decided that the surveyed land
belonged to the arable use category, i.e. to I, II, III, IV and V quality classes. 50.9% (3372.68 ha) of the total mapped
area of 6624 ha belongs to the lower quality classes, namely IV and V, 35.1% (2323.17 ha) to the III quality class and
only 14% (928.15 ha) to the higher I and II quality classes
Heat conductivity of some food products: theoretical models and practical measurements
No full textThermo-physical properties are necessary for the design and prediction of heat transfer operation during handling,
processing, canning, and distribution of foods. Thermal conductivity is defined as the ability of a material to conduct
heat. There are steady-state and transient-state methods for measurement of thermal conductivity. The most commonly
used transient methods are the thermal conductivity probe method, transient hot wire method, modified Fitch method,
point heat source method, and comparative method. In this paper the modified Fitch method was used in order to
measure thermal conductivity; the results were compared with the one predicted by some heat conductivity models:
series model, parallel model, the weighted geometric mean method. Experimental tests and calculations were applied to
the following food items: dry salami (salam uscat CrisTim); Transylvanian salami (salam ardelenesc); rustic sausage
(parizer ţărănesc Caroli). The experimental tests were performed immediately after the products were purchased and
then repeated after they were stored for one week, at 6°C. The results show that the series model adequately describes
the heat conductivity for dry salami and rustic sausage, while the weighted geometric mean model is more appropriate
Transylvanian salami, which has the lowest water content and the highest fat content
Ameliorarea crinului galben (Hemerocallis L.) în Republica Moldova
No full textThe genus Hemerocallis L. has longbeen attributed to the Liliaceae family, then to the Hemerocallidaceae family. Since 2009, on the basis of phylogenetic analyzes, it has beenattributed to the Xantorriaceae family.The species of Hemerocallis are spread in the temperate zones of Oriental Asia, especially in China, in the peninsula of Korea, Japan, Siberia. The most northern species can be considered Hemerocallis lilioasphodelus or H. flava, which is found in the Obi river basin and in Western Siberia. The genus Hemerocallis, the species H. flava, H. fulva are characteristicfor the flora of Europe. Many species of this family are grown as ornamental ones.The paper presents the results of the improvement of the species and varieties of the genus Hemerocallis L., the methods and stages of obtaining some forms and varieties of Hemerocallis hybrida Hort, the forms of Hemerocallis hybrida Hort., with decorative qualities superior to the parent plants
Identification of dorsal cutaneous perforator vessels using angio CT technique
Get PDFThe pig is used very often as an experimental model in plastic surgery. Identification of the correct skin flap require also identification of the cutaneous perforate vessel that irrigate the flap. The contrast medium used in radiology and CT have the capability to highlight the small vessel of the skin
Evaluarea microbiană a solului din judeţul Ialomiţa, România
No full textThis paper presents the population of micro-organisms found in sixsoil samples from Balaciu, Ialomiţa county, Romania, with a certain electrical conductivityand pH.The soil samples were dried, ground, revitalized with peptone water, and thenincubated at 31 °C. The culture media used were: nutrient agar: yeast extract, peptone, agar; YPG agar: yeast extract, peptone, glucose, agar supplemented with chloramphenicol. The soil samples were inoculated in Petri dishesand incubated for 7 days at 35 °C for bacteria and 28 ºC for fungi. After incubation, the number of microorganismswas calculated by the CFUdetermination technique (colony forming units).Also, the electrical conductivity with values less than 4 dS/m andthe pH, whose values exceeded 8, were determined
Considerations on entrepreneurship and entrepreneurial vocabulary
No full textThe aim of the paper is to conceptually define the term entrepreneur and the structural matrix of the entrepreneurial
vocabulary. In order to accomplish the goal, it was intended to find the answer at the following questions: i) Which are
the reference plans for entrepreneurship? ii) Which are the keywords of entrepreneur's vocabulary? From a
methodological point of view, the working paper is based on observations and interviews with entrepreneurs from
various fields of activity. The research results indicate two plans for defining an entrepreneur, namely the emotional
plan, represented by the entrepreneurial spirit and the rational plan, represented by the socio-economic contract between
the individual and the society. From the research it was found that the matrix structure of an entrepreneurial vocabulary
comprises the following 7 keywords: 1) purpose; 2) objective; 3) result; 4) cost; 5) production; 6) supply; 7) price.
Understanding these concepts is the cornerstone of entrepreneurship as a zero-grade professional alternative to today's
society, based on knowledge and information
Studiul unor cultivaruri de varză kale prin semănat direct şi răsad în cultură de toamnă
No full textThe Nero di Toscana variety had very good suitability for sowing under drip irrigation conditions, followed by the varieties Dwarf Green Curled S, Larkezungen and Westlander Halbhoher. Under sprinkling irrigation conditions, the emergence of plants was reduced at Larkezungen variety at 50%, Westlander Halbhoher at 12.5% The feature leaf/plant production varied as follows: Larkezungen -542 g, Westlander Halbhoher -347 g, Reflex F1 -336 g, Black magic -332 g, Dwarf Green Curled S -322 g and Dwarf Green Curled -312 g. Total yield (leaves + strains) was 825 g -Larkezungen, 434 g -Westlander Halbhoher, 422 g -Reflex F1, 380 g -Black magic, 372 g -Dwarf Green Curled S, -Fizz, 332 g -Nero di Toscana, 321 g -Pentland Brigg. Other varieties had a yield of less than 300 g / plant
Analyzing dem characteristics for area affected by drought identified using vhi: A case study of Iaşi county
No full textIn this paper was studied areas affected by drought using TCI, VCI and VHI. These indices are based on LST and
NDVI. Drought is one of the most widespread and least understood natural phenomena. The droughts are the
phenomena which affect large areas and remote sensing data covering large territory can be used to assess the droughts
impact and their extent. In this study was used remote sensing images from the Landsat 8 Operational Land Imager
(OLI), taken in April and May 2018. Study area, for this paper, geographically, is situated on latitude 47°32'N to
46°49'N and longitude 26°36'E to 28°05'E. This administrative unit is hit by heavy rains, floods, droughts and at larger
periods of time by landslide events and earthquakes. NDVI values indicates that vegetation has been developed between
21st April and 7th May. LST values was about the same for images analyzed for study area. VHI is usually used to detect
areas affected by severe drought. For these Landsat images analyzed was noticed that large areas were not affected by
drought. Some zones were affected by moderate and mid drought – about the same for April and May. For these areas
were made analysis to determine any connections between drought and altitude, gradient of slopes and exposure of
slopes. Areas affected by moderate and mid drought have slope between 00
and 7.50
, mostly between 50
and 7.50
. Zones
with slopes over 7.50
affected by drought is insignificant. Exposure of slopes for areas affected by drought is
preponderant east and north-east