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The increase in the photodynamic potential of dacarbazine as a result of Ph dependence
No full textPhotostimulated chemotherapy (PSChT) is a relatively new therapeutic method whose principle is based on increasing
the therapeutic index of certain cytostatics as a result of their interaction with optical radiation. For a particular
chemotherapeutic agent to be effective in PSChT-type applications, it must fulfill several conditions, the most important
of which is to have a positive photodynamic potential that consists in the resonant transfer of energy between the
irradiation source and its molecule. In this study, Dacarbazine (DTIC) was used as the photosensitizing agent, and a highpressure
mercury lamp was used as the irradiating agent. Preclinical studies in BL / 6 inbred mice carrying B16 murine
melanoma and spectrophotometric determinations were performed to identify whether the DTIC-PSChT method enhances
the efficacy of chemotherapy
Characterization of antibiotic resistant of Pseudomonas aeruginosa strains of human and animal origin in Romania
No full textA review: DNA markers associated with production traits in different cattle breeds
Get PDFThe main objective of modern livestock breeding is to find an efficient and a fast way to increase productivity and
quality, and the application of technologies based on DNA markers have a great influence on the livestock and also
contributes further to the mapping of the genomes of different species of economic importance. Past decade research
carried out at the DNA level had a main goal: to identify the genes responsible for the expression of quantitative
characters and the detection of places of interest, the latter becoming markers of DNA or SNP type that can be used in
the selection process and improvement programs of dairy farms.
In Romania, several studies were performed in order to identify the associations of the genetic markers with the main
traits of milk production by Vlaic et al, (2001; 2003; 2005); Creangă et al., (1996, 2002, 2003; 2007, 2008, 2010);
Bâlteanu et al., (2007a; 2007b, 2008; 2010a; 2010b, 2013); Bugeac et al., (2013a, 2013b, 2013c, 2015, 2019),
respectively for the quality of meat by Carşai et al, (2009, 2010, 2013)
Impactul schimbărilor climatice asupra producției de mere, în zona Iași
No full textHorticulture is strongly dependent on climate and in the context of climate change is being affected by climate change in terms of quantitative and qualitative yield reduction. In Europe, Mediterranean region and Middle Eastern Europe are the most affected by global climate change in the recent years. High temperatures in the orchard during summer and autumn can affect fruit quality. Lately, more symptoms occur, as sunburn damage, poor blush development, water core, rapid fruit ripening and reduced fruit growth.
Some studies were carried out on apple under Iași-Copou ecological conditions to see the effects of high temperatures and how these high temperatures could affect apple quality.
All these changes will determine us to adapt orchard practices to manage the impacts that an increased frequency of heat events will have on fruit quality
Non-thermal plasma T-shaped reactor for activated water production
No full textNon-thermal plasma is an innovative, eco-friendly technology, being considered as an emerging technology in many research fields. This work presents an analysis of the influence of different parameters on the energy efficiency of a T shaped non-thermal plasma reactor for plasma activated water generation. The tests were performed on four distinct designs (T1, T2, T3, T4) of this type of reactor for which the following input parameters were varied: frequency (60, 150 and 250 Hz), water flows (5, 10, 15 and 20 mL/min) and gas flows (1 and 2 L/min Ar). It has been shown that the configurations T3 and T4, whose discharge is generated between the gas inlet and outlet electrode, are less efficient compared to designs T1 and T2, where the discharge is generated between the water inlet electrode and the outlet electrode. It was also considered the influence of the polarity of the pulse power supply where the reverse polarity (T2 design) records significant values at the gas flow of 1 L/min. The carrier gas was argon, which has been chosen in order to avoid radical quenching reactions by other molecular species, such as nitrates and nitrites, generated in the atmospheric air plasma
Nutritional and antinutritional compounds in leaves of quinoa
Get PDFIn the context of climate change, especially for the temperate continental climate, new potential crop species are emerging, originating from the tropics. One of them is quinoa (Chenopodium quinoa Willd.) with multiple benefits for seed and leaf production. Quinoa is native to South America, grown mainly for seeds, with a high ecological plasticity. Little is known about the potential of using quinoa plants as a leafy vegetable for food diversification. In this study, the nutritional and antinutritional content of quinoa leaves was evaluated in three cultivars (Titicaca, Puno, Vikinga), considering different densities and times of sowing. Puno cultivar had a higher total content of carbohydrates, lipids, proteins and dietary fibers, and lower mineral contents in leaves. Low levels of antinutrient compounds were found in Vikinga leaves. Regarding the time of the crop establishment, the highest content of primary metabolic compounds (carbohydrates, lipids, proteins, dietary fibers) was achieved by April 17, the sowing date. Crop densities of 7.7, 3.2, and 1.6 mil. plants/ha did not significantly influence the content of compounds with antinutritive role, such as oxalates, saponins or trypsin inhibitors. The content of mineral elements such as: Fe, Zn, Na and K were significantly influenced by the cultivar, compared to Mg and Ca whose values were insignificant regardless of the treatment
Studiul unor caractere cantitative la o populație locală de fasole mare
Get PDFPhaseolus coccineus L. is the third most cultivated species of bean, for consumption of grains and immature pods. Despite its agronomic potential, high nutritional value and special economic importance, it is cultivated on a small scale and less studied. The cultivation of this plant in the Romania environment could be a real success by using a special programme to optimize the technology and by cultivating valuable varieties. In this context, the purpose of this paper is to assess the variability of quantitative characters (number of pods per plant, number of beans per plant, mass of beans per plant, number of beans in pods) on a local runner bean population, collected from village Cozia, Iași county. The research was carried out in the experimental vegetable field of Didactic Station of IULS. By the analysis of the results for the four characters, it was observed that it does not fully meet the criteria of distinctiveness, homogeneity and genetic stability, so it is not sufficiently balanced being necessary to continue the selection work, motivated by its high potential of production
The role of bacterial infections in the development of respiratory diseases in swine
Get PDFRespiratory disease of bacterial etiology is a serious health problem on commercial farms.Pig production on
commercial farms means keeping a large number of pigs in a relatively small space with a high level of
technological organization of the production process. Intensive utilization of accommodation capacities, early
weaning of piglets, inadequate microclimatic conditions for most of the statised categories and deficits in nutrition
have conditioned the appearance of production or technological diseases. Production diseases of bacterial etiology
are presented in this review paper. Diseases of bacterial etiology that occur at all stages of technological production
are: atrophic rhinitis, enzootic swine pneumonia, pneumonia caused by pasteurellosis, bordetella, pneumonia
caused by A. pleuropneumoniae, pneumonia caused by Haemophilus parasuis and pneumonia caused by
Streptococcus. We have described the possibility of prophylaxis of these production diseases of bacterial etiology
and the possibility of their control. These manufactured diseases cause economic losses (deaths, reduced daily gain,
extended fattening time and treatment costs