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Monitoring the environmental quality of marine waters through the analysis of biomineralization in bivalve shells
No full textBivalve shells, such as Mytilus, offer great potential as environmental proxies. Analysis of the biomineralization process with determination of elemental composition gives information about the quality of environment and reflects the possible safety issues related to mollusk consumption because high pollutant quantities in shells indicate high pollutants presence in the consumed parts. In this work we study the biomineralization process in some bivalve shells and identify the presence of pollutants such as Pb, U, and other heavy metals using scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDAX). Through the obtained results, this methodology proved to be very reliable and fast for this purpose. We also show a correlation of the biomineralization results with the environmental conditions where the shells developed, such as estimation of water temperature by the Sr/Ca ratios, all the results proving the ability of bivalve shells of providing information about the environment quality
Plant growth promotion effect of plasma activated water on Lactuca sativa L. cultivated in two different volumes of substrate
No full textPlasma activated water (PAW) can represent an alternative to chemical fertilizers in agriculture. The effects of PAW treatment applied in two concentrations (1.5 or 3.0 mg L−1 NO3−) on some morphological, physiological, biochemical parameters and yield of Lactuca sativa L. grown in two different pot volumes (400 or 3200 cm3) were investigated in this study. The results showed that both PAW concentrations did not influence the germination, once the process was initiated. Positive effects of the treatments were registered on the length of radicle and hypocotyls of lettuce at a concentration of 1.5 mg L−1 NO3− (PAW I), the chlorophyll content was significantly increased at a concentration of 3.0 mg L−1 NO3− (PAW II) and bigger pot volume, also the foliar weight and area. No significant differences between the treated and untreated plants were recorded for the root weight, leaf length and width. The dry weight was significantly higher for the lettuce treated with PAW I and II grown in big volume pots at 57 days after transplanting (DAT) and small volume pots at 64 DAT. The nitrites content of the lettuce grown in big pots was lower than of the lettuce grown in small pots, regardless of the PAW treatment. Contrary, the nitrates content was higher in the lettuce grown in big pots (up to 36.4 mg KNO3/g DW), compared to small pots (under 0.3 mg KNO3/g DW)
Medicinal properties of Thymus vulgaris essential oil: a review
No full textGlobally, the interest in essential oils has been steadily increasing over the last decades due to their beneficial health
effects and the wide range of applications that are directly linked to a variety of pharmacological and biological
activities. Thymus vulgaris L., also called common or garden thyme is a small perennial herb, which has been used over
the years as food additive, but also as a valuable cure in several pathologies. It is believed that the medicinal properties
of Thymus vulgaris are attributed to its essential oil, which is a mixture of monoterpenes. Moreover, the therapeutic
properties of this essential oil are due to its main compounds, namely the terpenoid thymol and its phenol isomer
carvacrol. Several investigations have indicated that thyme oil possesses strong antiseptic, antimicrobial, antifungal,
antioxidant effects and therefore, all the aforementioned features make this essential oil a promising remedy in human
and veterinary medicine fields. The aim of the present study was to review and highlight the medicinal attributes of
Thymus vulgaris essential oil, apart from its nutritional value, in order to identify novel alternative cures in the treatment
of both humans and animals diseases
Exploring the statistical association between the economic, environmental and innovative areas of performance: The case of European Union agriculture
No full textThe importance of innovation in agriculture is supported by the effects that innovation has on the growth of
the sector's performance in relation to its efforts. The aim of the paper is to identify and to analyse the
statistical association between the indicators of agricultural performance, regarding the economic,
environmental and innovative aspects at European Union level (EU-28). For this, a study on agriculture from
the 28 EU countries was developed using the information available in Eurostat statistics during 2006-2016.
To address the research problem, the association analysis and correlation analysis as data analysis methods
were used. The data were processed using the functions of IBM SPSS - Version 20. The analysis of the relations
between the three areas of agricultural performance, namely economic, environmental and innovative,
highlighted the following aspects: i) on average, there was an inverse relationship between economic
performance and the environmental one; ii) on average, attracting borrowed capital and increasing
indebtedness can enhance the innovative processes in agriculture; iii) the increase in economic performance was
positively correlated with the intensive use of agricultural land and high levels of investments in technology.
A rich economy has the financial resources to invest in research - development - innovation activities in the
agricultural sector, which stimulates the economic performance of farmers and others companies in the related
fields. The statistical survey highlighted the direct link between the general level of development of a country's
economy and the innovative capacity of the strategic sector represented by agriculture
Influenţa diferitor produse de rărire a fructelor asupra productivităţii şi calităţii la soiul ‘Fuji Kiku’
No full textThe study subject was Fuji Kiku apple variety grafted on M9.To study thinning of apple fruitswere experimented the following variants:1. Control –without treatment; 2. Manual thinning; 3. Ger ATS LG, 12 L/ha; 4. Geramid New, 1,5 L/ha; 5. Dirager, 0,3 L/ha; 6. Goltex 700SC, 3,5 L/ha; 7. Dira Max LG, 2,5 L/ha; 8. Gerba 4 LG,2,5 L/ha. It was established that, the good effect of thinning was after application withGer ATS LG, 12 L/ha. In the case of no favorable conditions during the previous treatment, mustto utilize Goltex 700SC, 3.5 L/ha, Dira Max LG, 2.50 L/ha and Gerba 4 LG in the dose 2.5 L/ha, when the size of the central flower of the inflorescence has a diameter of 10-15 mm.It not recommended for the Fuji Kiku variety to spraywithNAD (Geramid New) and ANA (Dirager), because formed a large “pygmy”fruits
Observations on the existing carbide species in the apple orchards
No full textIn this paper new contributions are made to the knowledge of the species of carabids in a fruit tree apple of Delesti in
the Vaslui country. The material was collected from May to September throughout the research period, using Barber
traps. From the biological material collected, all species collected have been listed and determined and only the species
belonging to the Carabidae family have been selected afterwards. In the period of the observations were collected
throughout 1573 specimens of harmful and useful insects, so 795 were collected in 2018 for 11 species, and 778 were
collected in 2019 for 33 species. Analysis of the collected material was found the most frequevence species was:
Carabus coriaceus L., Pseudophonus rufipes Mull., Opatrum sabulosum L., Phyllotreta vittula F., Phyllotreta nemorum
L., Formicomus pedestri Anysodactilus binotatus, Harpalus distinguendus, Harpalus calceatus, Harpalus tenebrosus,
Harpalus griseus, Amara crenata, Harpalus tardus, Metabletus truncatelus, Amara aenea si Harpalus pubescens
The importance of balanced diets administration and vitamin-mineral supplements in puppies and adult dogs
No full textBalanced is a term that may be applied to a diet, ration, or feed having all the required nutrients in proper amount and proportion based upon recommendations of recognized authorities in the field of animal nutrition, such as the NRC, for a given set of physiological requirements. Growth is one period where concerns are frequently reported, as this is one
of themost nutritionally demanding life stages, and deficiencies and excesses are manifested quite rapidly. Minerals and vitamins are part of the diet, providing the energy for growth and activity. Individual variation, increased growth rate and/or level of activity may lead to exceeding the daily requirements of minerals and vitamins and thus to disturbance of skeletal growth as a cause of frequently diagnosed orthopedic diseases. Growth rates of young dogs are affected by the nutrient density of the food and the amount of food fed. It is important that puppies be fed to grow at an optimal rate
for bone development and body condition rather than at a maximal rate. This study includes 8 dogs all different breeds. The study covers the correction of bone deformities when dogs are given a balanced diet along with vitamin mineral supplements. To obtain the proper information, correct diagnosis and a treatment plan a clinical exam was given to each dog. Radiology reports/images were obtained, as well as blood tests. Once results were collected it is clear supermarket puppy food that does not contain minimum 1.2 - 1.8% CA and 0.8 -1.6% P can lead to bone deformities such as "rickets". Premium dog food and vitamin supplements should be given to small to medium breeds four months to one year old, and larger breeds one and a half to two years old
Improvement of the Corrosion Resistance of Biomedical Zr-Ti Alloys Using a Thermal Oxidation Treatment
No full textBinary Zr-Ti alloys spontaneously develop a tenacious and compact oxide layer when their fresh surface is exposed either to air or to aqueous environments. Electrochemical impedance spectroscopy (EIS) analysis of Zr-45Ti, Zr-25Ti, and Zr-5Ti exposed to simulated physiological solutions at 37 °C evidences the formation of a non-sealing bilayer oxide film that accounts for the corrosion resistance of the materials. Unfortunately, these oxide layers may undergo breakdown and stable pitting corrosion regimes at anodic potentials within the range of those experienced in the human body under stress and surgical conditions. Improved corrosion resistance has been achieved by prior treatment of these alloys using thermal oxidation in air. EIS was employed to measure the corrosion resistance of the Zr-Ti alloys in simulated physiological solutions of a wide pH range (namely 3 ≤ pH ≤ 8) at 37 °C, and the best results were obtained for the alloys pre-treated at 500 °C. The formation of the passivating oxide layers in simulated physiological solution was monitored in situ using scanning electrochemical microscopy (SECM), finding a transition from an electrochemically active surface, characteristic of the bare metal, to the heterogeneous formation of oxide layers behaving as insulating surfaces towards electron transfer reactions
Biochemical, Physiological and Yield Characteristics of Red Basil as Affected by Cultivar and Fertilization
No full textUnconventional fertilizers can act as elicitors to encourage the synthesis of phyto-pharmaceuticals in aromatic plants. In the present research, the effects of factorial combination between two red basil cultivars, ‘Opal’ and ‘De Buzau’, and four fertilization types, biosolids, organic, microorganisms and chemical, plus an unfertilized control, were assessed on fresh and dry yield, biometrical parameters, soil plant analysis development (SPAD) and antioxidant compounds and activity. Chemical fertilization increased fresh yield compared with the control, with no difference in organic and microorganism fertilization regarding dry weight. ‘De Buzau’ enhanced the number of lateral stems and plant height, the latter being better affected by chemical and microorganisms compared to the control. Chemical fertilization showed the highest leaf dry matter, nitrate content and SPAD, whereas the control showed the lowest. Compared to the unfertilized control, biosolids increased total phenolics in ‘Opal’; microorganisms, organic and biosolids enhanced total flavonoids in ‘Opal’, with the same effect under microorganisms and organic treatments in ‘De Buzau’. Total anthocyanins showed the highest content in ‘Opal’ under organic fertilization. The highest antioxidant activity in the basil extracts was detected under microorganisms and organic applications in ‘Opal’. The present investigation results demonstrate that unconventional fertilizers increase the synthesis of antioxidants and represent a sustainable alternative to chemical fertilization for growing red basil
Preliminary research of several nutrients analyzed in different commercial portions of poultry meat
No full textIn this project, four different poultry species have been selected, for each two different commercial
parts further on being included in the study: breast and thigh. The analysis included nutritive quality
parameters such as: free fat, protein (nitrogen), water, ash, and collagen. The project used the
following standardized methods of analysis: SR ISO 1442:2010, SR ISO 3496:1997/A1:1999, SR ISO
936:2009, SR ISO 1444:2008 and SR ISO 937:2007. Also, the statistical analysis was performed using
the IBM® SPSS® Statistics 20 (comparison between species and commercial parts). The results were
mostly similar to the ones found in the scientific literature. The difference between the fat content of
goose meat and turkey meat was statistically significant (p < 0.0001) (for both commercial parts).
Also, the water content was lower for goose meat compared to the other commercial parts of the
species selected for the study. The ash content was not different between the parts and species included
in the study, and the same could be observed for the collagen. As for the chicken meat commercial
parts, it can be confirmed what the scientific literature was mentioning in different other studies: the
protein content (nitrogen percentage) of the breast meat part is higher compared to the thigh part, for
the same species. The main conclusion of this study could be that these preliminary results are
valuable and may be followed through with a thorough analysis of the amino acids and fatty acids
profiles, for further comparisons