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The labor market in the rural area of the Republic of Moldova
No full textAny economic activity, under the conditions of a market economy, objectively associates the factor of production
capital, with another essential factor, the labor factor, which is obtained through the labor market, thus constituting a
market economy subsystem. The labor market is one of the most important elements of the market economy. The
functioning of the labor market is influenced both by the economic factors and by the social-institutional nature.
Economic factors are especially important for labor demand. Labor supply is modeled at the same time by economic
factors (salary level as the price of this factor), but also by factors with a social or institutional coloration
Dispersion of pollutants in soil
No full textThis paper analyzes the dispersion of soil pollutants from the sewage treatment mud from Tomesti, Iasi. The results
were obtained by sampling soil samples from different depths (0-20 cm, 20-40 cm and 40-60 cm). The soil material,
consisting of urban sludge, at all samples collected on the 0-20 cm depth shows well-developed structural aggregates,
having a structure that varies from grain to sub-lime polyhedra with a medium development degree. The material
exhibits hydrophysical properties - mechanical and hydric stability, consistency being moderately dry in a dry,
moderately glue-like state, with macroporous, medium and large macroporous, resulting in good aeration porosity and
optimum aerohydric regime. In the range of 20-40 cm the soil material is relatively well structured, with smaller
structural aggregates, the lack of groundwater causing an increase in consistency, plasticity and reduction of interspaces
between aggregates. For the depth between 40-60 cm the soil is well structured, with medium-sized aggregates with a
grainy structure in the first part, subangular polyhedral in the sub-surface, micro and meso-good activity. The study area
is the sludge dumps from Tomeşti from Iaşi. It was built in 1994 by removing the soil layer on an area of 9.1 hectares of
land and the construction of surrounding and separating dams. Around the warehouse was made a drainage channel that
ensures the drainage of the deposit. The warehouse is located in the major river bed of the Bahlui River, on its right
side. The straight line to the Iaşi Wastewater Treatment Plant is about 2000 m. The sludge from the process of the Iasi
wastewater treatment plant was transported to the warehouse through a pumping station and a discharge pipeline
Microorganisme benefice plantelor cu efect de solubilizare a siliciului
No full textSilicon is the second abundant element on Earth. Commonly, it is found as silica and silicates, or in biology as mineral constituent of microorganisms, protozoa and plants. Although silicon it is not considered an essential nutrient for plants, it has been noticed that available silicon positively influences plants’ growth, mechanical strength, and resistance to several biotic and abiotic unfavorable conditions, such as fungal phytopathogens, herbivores and adverse chemicals. Our study presents several microbial strains able to solubilize silicon from different biological and mineral substrates. Some of these microorganisms were isolated from plant material with high content of mineral silicon like horsetail, wheat straw, rosemary and nettle. Moreover, microbial supernatant obtainedon horsetail broth increased hypocotyl and roots length of cowpea Vignaunguiculata (L.) Walp
Diversitatea mamiferelor mici şi relaţiile interspecifice stabilite în cadrul unei livezi de măr
No full textThisstudy was realized from April 2017 to August 2018 in a conventional apple orchard from Delesti(Vaslui, Romania). The goal of this research wasrelationsand species diversity of small mammalsfrom this agroecosystem. A total of 8small mammalsspecies were identifiedduring theresearchtime. Out of small mammals identified, the species Mus spicilegusand Apodemus sylvaticusare cohabitant species, while dominant species is Microtus arvalis. Theresults reveal that the structure of small mammals communities is correlate with condition of habitat and also, with intensity of agrotechnical procedures carried out during the vegetative season
Studii şi cercetări privind poluarea industriei energetice asupra zonei verzi a localităţilor
No full textThe urban environment is heavily influenced by the pollution generated by thermo-power plants. Their work program and the fuels used generate intense pollution of urban green spaces. In the case of thermoelectric power plants on gaseous and liquid fuels (methane + fuel), the emissions of the gases (CO, NO, NO2, SO2), which by hydration produce acids, occur in the atmosphere. Acid rains work on green areas continuously over the dominant wind direction. The case study conducted in the Iasi areaindicated the pollution area, the concentrations of the pollutants and the lengths of the noxious transport in the considered area. The study of the dispersion of noxes in the atmosphere is done by modeling the functional phenomena of the polluting sources
The influence of some technological links on the productivity of three monoecious hemp unisexual female hybrids and the provenance variety, in A.R.D.S Secuieni cultivation conditions
No full textThis paper aims to highlight the combined impact of the cutting method and the distance between plant rows on the
monoecious hemp variety for seed – Zenit and on the unisexual female hybrids from three generations of crossbreeding,
respectively retro-crossing. The researches were carried out in the Agricultural Research – Development Station Secuieni
technological field, during 2017. The experience was of the trifactor type, the performed determinations were focusing
on the biometric and productivity characteristics of the studied cultivars. The variety x cutting x distance combination
generated remarkable yields for the HUF2 hybrid, sown at a distance of 50 cm between the plants rows, and to which
two cuttings were applied (1816.7 kg/ha). Also, production results ensured at statistical level as very significant were
obtained from interactions between HUF2 x T2 x 70 cm (1700 kg/ha), HUF3 x T2 x 50 cm (1643.3 kg/ha) and HUF2 x
T1 x 70 cm (1626.7 kg/ha)
Left sided congestive heart failure due to severe aortic degeneration and insufficiency in a dog –a case report
No full textAortic degeneration is an uncommon finding in dogs with uncertain etiology, being associated with endocrine disorders which may induce hypercalcemia, hyperkalemia, or with toxicosis, renal disorders and endocarditis. This entity may develop a diastolic volume overload leading to left sided congestive heart failure. The aim of this study is to report and discuss a case of a dog with left sided congestive heart failure due to severe aortic regurgitation associated with myxomatous mitral valve disease and systemic hypertension
Evolution of some physico-chemical and microbiological parameters of poultry gizzards and hearts stored under refrigeration conditions
No full textNowadays, at worldwide a special attention is granted to the quality and safety of food products. In this context, the aim
of the present study was to establish the maximum period of time that the poultry gizzards and hearts retains the
minimum quality characteristics, so as to be accepted by consumers and at the same time not pose a threat to their
health. The gizzards and hearts analyzed were packaged separately in polystyrene trays and stretch film and stored in a
household refrigerator for 9 days at +3°C. In each day of storage, 5 packing units were opened for each assortment
analyzed, from which samples were collected to evaluate the qualitative changes. The dynamic analysis of the pH of the
studied gizzards and hearts highlighted slight increases in value from one control stage to another. Regarding easily
hydrolysable nitrogen, by correlating the values obtained with the maximum limit imposed by the existing legislation
(25 mg NH3/100g), it can be observed that by the 6th day of storage, the average values indicated a good product for
consumption (23.34±1.55 mgNH3/100g for gizzards and 23.53±0.26 mgNH3/100g for hearts). The microbial load
present in the poultry gizzards and hearts analyzed had an ascending evolution during the 9 days of control, both with
respect the TNG and the number of germs from the genus Enterobacteriaceae, but variations in microbiological
parameters fall within tolerance limits specified for them. Through the obtained results and considering the limits
imposed by the existing standards, we can see that the 6th day of refrigeration storage is the maximum limit of the
validation for the poultry gizzards and hearts
Tillage effect on soil microbiota in winter wheat (Triticum aestivum L.) at Ezareni research station
No full textThe study was carried out at UASMV Iasi Research Station – Ezareni Farm, on a cambic mesocalcaric regraded chernozem. To highlight the influence of tillage (no-tillage, conventional tillage) on soil microbiota in winter wheat (Triticum aestivum L.), soil samples were taken in 3 growth stages (tillering, stem elongation and flowering) in MarchJune 2017, from 7-10 cm depth soil layer. Subsequently, within 24 hours from sampling, the samples were analyzed by dilution method and seeded on four different culture media: PDA, PDA + Streptomycin, PDA + Rose Bengal and ASHBY. The number of bacteria was determined after 24 hours, and filamentous fungi microscopic identification was done 5 days after medium seeding. Results show major differences regarding soil microbiota for both tillage treatments and in all three crop growth stages. At tillering, microbial activity was dominated by Penicillium and Trichoderma fungi found in different proportions;
Penicillium fungi also dominated at stem elongation in no-tillage, while in conventional tillage Ulocladium fungi was also present into the seeded medium. At flowering, Penicillium fungi had almost the same proportion both in no-tillage and conventional tillage. Aspergillus fungi registered also almost the same proportion in both tillage treatments but were dominant over Penicillium genus. The number of genera was almost the same in conventional and no-tillage, in all three crop growth stages, but their
proportions had a significant variation. In no-till, the main genera of micromycetes were found in smaller proportions in comparison to conventional tillage. Microbiological analysis shows that soil microbiota is directly affected by tillage and crop growth stage in winter wheat
Inheritance of some agronomic characters and rusts resistance in fifteen F2 wheat populations
Get PDFSix parents, i.e. Gemmeiza 9,
Sids 12, Misr 1, Misr 2, Sids 1 and Sham 4,
were used and evaluated with corresponding
15 F2 crosses. The parents in each cross
were significantly different for most of these
characters, revealing the different genetic
background of the parents involved. The
phenotypic variances in the F2 crosses were
differed significantly from the
environmental variances in the
corresponding parents in most cases. The
parents Gemmeiza 9, Sids 12, Misr 1,
Misr 2 were resistant for leaf rust and
Gemmeiza 9, Sids 12 and Sids 1 were
resistant to stem rust. Among the crosses,
three crosses, i.e. Misr 2 x Sids 1, Misr 1 x
Sids 1 and Gemmeiza 9 x Sids 1 gave the
highest grain yield. The means of F2 hybrids
were higher than the means of the parents
for most studied characters. The ranges of
the F2 values went out the ranges of the two
parents in most cases, exhibiting
transgressive segregation. Most characters
showed moderate to high values of broad
sense heritabilities. The studied plants in the
F2's crosses segregated and gave ratios fitted
the ratios 9:7, 9:7, 3:1, 1:3, 13:3 and 3:13
for leaf rust and 9:7, 7: 9, 3:1, 1:3, 3:13 and
1:15 for stem rust with insignificant χ2
values, indicating that the resistant parents
for leaf and stem rusts had one or two genes
and were complimentary dominance,
recessive or independent in their
expressions. Based on the resistance to leaf
and stem rusts, suitable plant height (90-110
cm) and grain yield higher than the highest
parent, 8-17 plants were selected from seven
crosses