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Search Results: 1 - 10 of 217 matches for " SILVIU JIPA "
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RESEARCH PERFORMANCE EVALUATION OF CHEMISTRY GROUP FROM VALAHIA UNIVERSITY TARGOVISTE
SILVIU JIPA,LAURA MONICA GORGHIU,CRINELA DUMITRESCU,CALIN OROS
Journal of Science and Arts , 2012,
Abstract: This article presents an analysis of the scientific performance obtained by the Chemistry Group members of Department of Science from Valahia University using traditional scientometric indicators, including h-index and a new method for calculating the scientific productivity. The article also includes the results of a study which explores the time-dependence of h-index.
ASSESSING OF THE RESEARCH OUTPUT USING HIRSCH INDEX IN THE CHEMISTRY GROUP FROM VALAHIA UNIVERSITY OF TARGOVISTE
SILVIU JIPA,LAURA MONICA GORGHIU,CRINELA DUMITRESCU,CALIN OROS
Journal of Science and Arts , 2011,
Abstract: The evaluation of the scientific activity of individual and institutional research outputs has long attracted significant interest. The scientific performances of the Faculty of Sciences and Arts in the Valahia University of Targoviste were analyzed using different scientometric indicators (number of published papers, influence score, impact factor, Hirsch index a.s.o). For Hirsch determination different databases has been used (Advanced Google, Scholar, Scopus, ISI Web of Science, Google Academic). A remarkable finding was the outstanding performance in basic sciences where high level research has been evidenced.
NEW METRICS FOR RESEARCH OUTPUTS FROM THE CHEMISTRY DEPARTMENT IN VALAHIA UNIVERSITY OF TARGOVISTE
SILVIU JIPA,LAURA MONICA GORGHIU,CRINELA DUMITRESCU,CALIN OROS
Journal of Science and Arts , 2012,
Abstract: This article presents a further study related to the analysis of the scientific performance obtained by the Chemistry Department members from Valahia University using different scientometric indicators described in the scientific literature, including Hirsch index, selectivity and amplitude. The paper also contains the description of the method for calculating the Hirsch-index dependence on the Chemistry Department member’s research age, determined from the publication of their first scientific paper. Some results concerning the h-index normalization by a factor that reflects the average number of co-authors are also included.
RANKING CHEMISTRY JOURNALS USING THE HIRSCH INDEX AND ARTICLE INFLUENCE SCORE
SILVIU JIPA,LAURA MONICA GORGHIU,CRINELA DUMITRESCU,CALIN OROS
Journal of Science and Arts , 2012,
Abstract: This study presents the Hirsch-index, impact factor and article influence score for the ranking of Chemistry journals. The study concludes that the Hirsch-index exhibits a good correlation with the influence score. A correlation of 60 Chemistry journals is analyzed.
ACADEMIC CHEMISTRY IN ROMANIA – SOME SCIENTIFIC RESULTS
SILVIU JIPA,LAURA MONICA GORGHIU,CRINELA DUMITRESCU,CALIN OROS
Journal of Science and Arts , 2013,
Abstract: The paper analyzes a series of bibliometric indicators related to the research performance of Chemistry professors in different Romanian universities. The total number of ISI papers, total number of citations, number of citations per paper, number of citations per year and Hirsch indices have been used to evaluate their research output. The individual professor’s Hirsch-index linearly depends on the scientometric indicators of the journal in “h-core”, namely the impact factor, influence score and the journal’s Hirsch-index.
DOSIMETRIC FEATURES OF NATURAL FLUORITE FROM ROMANIA
MADALINA NEDELCU,CORNELIU PODINA,SILVIU JIPA,RADU SETNESCU
Journal of Science and Arts , 2010,
Abstract: Thermoluminescent dosimetric features of two batches of fluorite from Romania (Cavnic and Tulcea) are presented. An initial thermal treatment at 6000C for 60 min. to cleaning of natural dose has been performed. All samples showed the same glow curve structure with three prominent peaks located at 1000, 1800 and 2800C at a heating rate of 50C/s. An attempt was made to determine the kinetic parameters of TL glow curve. The activation energy E ~ 1.31 eV (Tulcea batch) of the dosimetric peak and the kinetic order b=2 were obtained. The dose response of CaF2:nat from Tulcea to gamma-rays is linear in the range 2 Gy to 5·103Gy, where saturation effects became pronounced. A thermal fading of 18% during 30 days was observed.
APPLYING NEW SCIENTOMETRIC INDICATORS TO EVALUATE THE SCIENTIFIC PERFORMANCE OF CHEMISTRY GROUP FROM VALACHIA UNIVERSITY OF TARGOVISTE
SILVIU JIPA,LAURA MONICA GORGHIU,CRINELA DUMITRESCU,CALIN OROS
Journal of Science and Arts , 2011,
Abstract: The paper describes different new indicators measuring research output by application to Chemistry Department of the Faculty of Sciences and Arts from Valahia University of Targoviste. We have also analyzed the Hirsch indices calculated with different relations proposed in literature. We have compared the data obtained in our study with the results of other studies done in other universities and circumstances.
RESEARCH OUTPUT NEW EVALUATION OF CHEMISTRY GROUP IN VALAHIA UNIVERSITY WITH THE USE OF VARIOUS BIBLIOMETRIC INDICATORS
SILVIU JIPA,LAURA MONICA GORGHIU,CRINELA DUMITRESCU,CALIN OROS
Journal of Science and Arts , 2012,
Abstract: The current paper uses bibliometric data to investigate the research performance of the Chemistry Group from the Faculty of Sciences and Arts in Valahia University of Targoviste. The analyses are based on the Web of Science database. We present the research output such as the number of scientific papers and the citation impact as well as the Hirsch (h) and g indices. In addition, in this paper, we have applied new indices to characterize the scientific productivity of the researchers.
A Hidden Stability in the Random Behaviour of the Consecutive Prime Numbers  [PDF]
Silviu Guiasu
Natural Science (NS) , 2018, DOI: 10.4236/ns.2018.1010036
Abstract: The paper contains a geometric interpretation of Andrica’s conjecture about the gap between the square roots of the consecutive primes and brings empirical evidence that the random fluctuations of the gap between the quare roots of the consecutive primes seem to stabilize around the mean gap.
Analisys of the General Management Functions in Comparison with the Management Applied in Police
Jipa Cristache
Acta Universitatis Danubius : Administratio , 2012,
Abstract: The general principles of management are valid in any institution, but the specific aspects of the structures within police impose a different approach due to the structural particular aspects, such as: the organisational climate, the complexity of the missions, the relationships between seniors and juniors, the specific liability which rises whenever the given disposals are not performed with maximum of efficiency, the stake being incomparable greater than in any other organisation. We need to know and apply the notions of the management and managerial communication, so that to fulfil these desiderata. The police management represents the activity which consists in leading a group of people, in a given situation, in order to collectively reach the goals, in accordance with the desired finalities aimed by the general strategy of M.A.I.
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