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Abordări teoretice privind instrumentele bibliometrice
No full textStudiul de față își propune o trecere în revistă a principalelor etape din dezvoltarea bibliometriei, știință care se dezvoltă vertiginos, în paralel cu toate celelalte științe, fie ele exacte, fie umaniste, dar care oferă înainte de toate un instrument pentru organizarea, ierarhizarea și evaluarea producției științifice (sau a cercetătorilor) unei instituții, a unei țări sau chiar la nivel mondial. Instrumentele bibliometrice stimulează cercetarea și știința, la fel cum acestea două stimulează la rîndul lor dezvoltarea de noi tehologii și metode în domeniul bibliometriei
Reversible and irreversible processes in drying and wetting of soil
No full textIn this article, we provide a detailed description of a modeling technique for the capillary hysteresis in a soil-like porous material based on a Generalized Preisach Model. The identification of the reversible and irreversible Preisach distributions was performed with the first-order reversal curve (FORC) diagram technique, which is very popular now in magnetism and in other areas of science to give a fingerprint of the studied system. A special attention was given to the evaluation of the reversible component. In this case, we used a set of data published in 1965 by Morrow and Harris which has been used as a reference by many other researchers since. The advantage of this approach is that the experimental FORC distributions can be described with analytical functions and easily implemented in the mentioned Preisach-type model. Our research is also focused on the development of a characterization tool for the soil using the soil-moisture hysteresis. The systematic use of scanning curves provides a (FORC) diagram linked to the physical properties of the studied soil. The agreement between the experimental data and the Preisach model using the set of parameters found through the FORC technique is really noticeable and gives a good practical option to the researchers to use a method with a strong predictive capability
Efectul tratării cu regulatorul de creştere Gerba 4LG la obţinerea lăstarilor laterali în pepinieră la pomii de măr
No full textThe object of the research was apple varieties Golden Delicious Reinders, Red Velox, Gala Buckeye and Red Jonaprince, grafted on M 9. The grafting method was chip budding. Planting distance was 80x35 cm. In order to intensify the formation of the anticipated shoots in the area of the crown formation, various technological processes were used: 1. Free eyelid growth (control); 2. Topping of apical leaveswascombined with two treatments with Gerba 4LG at a dose of 25 ml/liter of water. It was established that the most reasonable garnishing of the crown formation with anticipated shoots at all studied varieties was obtained by topping the apical leaves in the apex area once when the graft reaches 65-70 cm height combined with twice the sprinkling Gerba 4LG at 25 ml/liter of water. The first treatment was done after breaking the apical leaves and the next at 5-7 days
Rezultate partiale privind tipurile de substraturi folosite pentru obţinerea culturilor legumicole de tip microgreens
No full textThe paper addresses research on the use of four types of substrates (coconut substrate, 80% peat + 20% coconut waste, 80% peat + 20% sand and80% peat + 20% pearlite) to obtain the products microgreens type vegetables, in order to establish the best substrate variant. The best results were obtained on the coconut waste substrate
Biochemical profile of blood of rabbits on the dependence of the consumed fodder
No full textIn order to study the variation of the biochemical profile of the blood of the rabbits depending on the biochemical composition of the consumed fodder (with and without the addition of streptomycetes biomass), an experiment was carried out under laboratory conditions in which were included two lots (control and experimental) of 5 animals per lot. During the experiment, was carried out the biochemical analysis of the fodder, of the blood of the rabbits from both lots taken initially, over 15 days and the end of the experiment.As a result of the experiment, the superiority of the biochemical profile of the rabbit blood from the experimental lot was compared with that of the control lot. The quantitative increase of protein, albumin and glucose respectively by 5.34%, 25.86% and 26.32%, in the blood serum of the animals from the experimental lot compared to the control lot, was favored by the consumption, by rabbits, during 60 days, of the combined granulated fodder with the addition of 0.1% of S. levoris biomass CNMN-Ac-01
Seed germination and radicle establishment related to type and level of salt in common bean (Phaseolus Vulgaris L. Var. Djedida)
No full textSaline soils contain multiple
types of salt, each of them may exert a
different effect on seed germination and
seedling growth. The aim of this study is
to assess the effects of five types of salt
on the seed germination and radicle
establishment of common bean
(Phaseolus vulgaris L. var. Djedida).
The experiment was set out as a factorial
experiment based on completely
randomized design with four replications
of ten seeds for the seed germination and
twelve replicates for the seedling growth.
We used five kinds of salts (NaCl,
Na2SO4, CaCl2, CaCO3 and KCl) with
concentrations of 0, 100, 200 and 300 mM.
Seeds were incubated in Petri dishes at
25°C, in the dark, for 10 days. The results
of analysis of variance indicated that the
effects of salt types and concentrations,
and their interaction effect were
significant in all measured traits (P< 0.01).
However, no significance effect was
found on secondary roots number and
seedlings dry biomass with CaCO3
treatment solution. According to the
results, the inhibitory effects of the five
salt types differed significantly. Indeed,
germination of common bean seeds by
various salts were in the order of NaCl >
KCl > CaCO3 > Na2SO4 > CaCl2.
However, the taproot length, the number
of secondary roots and the seedlings dry
weight by various salts were in the order
of CaCO3 > KCl > NaCl > CaCl2 >
Na2SO4. The effect of salt concentration
was also obvious. The reduction in dry
biomass of cotyledons is proportional to
germination rates and to the development
of seedlings in dry biomass and in size.
Seeds of P. vulgaris var. Djedida were
able to germinate under all concentrations
of the various types of salt. The lowest
final germination percentage (FGP) was
obtained under 300 mM of all salts
recording the following values: CaCO3 -
60%, NaCl - 60%, KCl - 52.5%, Na2SO4 -
50% and CaCl2 - 27.5%. During germination stage, the radicle emergence
would be controlled by the environment
osmolarity, while the later growth of the
seedling would be limited by the reserve
mobilization
The morphological peculiarities of the digestive system in peacock (Pavo cristatus)
No full textThe peacockʼs beak has the characteristic aspect as in all granivores, being relatively short, thick at the base and sharpened at the tip, consisting in a curved upper valve which covers the lower valve tip. The ceiling of the oropharyngeal cavity is narrow and covered by two palatine lateral ridges which fuse into a brief median ridge. The palatine fissure appears such as a cleft, aborally placed to the beak's commissure and slightly wider in its posterior half. The tongue is triangular-like and sharpened ended, it follows the shape of the inferior valve but being small in length, it partly fills the floor. The peacockʼ esophagus is about 25 cm long, the last third of the cervical part represents in fact the crop, globular in shape. Proventriculus appears elongated, fusiform and approximately 3,5-4 cm long. The ventriculus is 6,5 cm long, 5 cm wide and 3-3,2 cm thick. The two ceca are about 20 cm long lying on each side of ileum. The proximal portion is 8 about cm long showing a thicker wall, then follows the tonsillar portion with thinner wall, it appears as a blind sac with a rounded apex. The hepatic lobes are almost equal in size. The left lobe is divided into medial and lateral portion. The pancreas consists of three lobes: ventral, dorsal and splenic
Analiza unor parametri chimici pentru trei tipuri de lapte praf reconstituit
No full textThe infant formula means a breast milk substitute specifically made to meet the nutritional requirements of infants during the first few months of life until appropriate complementary feed is introduced. Milk intake in the baby's diet is recommended for at least the first two years of life, maternal -at least six months, the animal or the formula of reconstituted milk powder -further, due to the essential nutritional principles in growth and physical and cognitive development.The chemical parameters analyzed in the present paper follow the quality of three milkpowders (infant formula, next step formulaand lactose-free formula) and three types of water (marketed, tapped and filtered) used for reconstitution with regard to acidity and content in nitrite, chloride, sulphite and phosphateions
CT evaluation of HU bone density of the vertebrae in dogs with spine compression
No full textBone mineral density (BMD) is defined as the mineral concentration in bone. BMD is directly related to bone strength and is a useful predictor of osteoporotic fracture; it is therefore used to diagnose and monitor osteoporosis in humans. The purpose of this study was to evaluate if there are changes in the adjacent vertebral body (cranial and caudal) consistency in case of disk protrusion or IVDD. The result show changes of the HU of the vertebral body of the vertebrae situated cranial and caudal of the protrusion site, but there is no statistical correlation between the disk protrusion or IVDD and those changes