18,294 research outputs found
Strong Non Split Block Domination in Graphs
For any graph G=( V,E ), the block graph B(G) is a graph whose set of vertices is the union of the set of blocks of G in which two vertices are adjacent if and only if the corresponding blocks of G are adjacent. A dominating set D of a graph B(G) is a strong non split block dominating set if the induced sub graph ?V[B(G) ]-D? is complete. The strong non split block domination number? ??_(snsb ) (G) of G is the minimum cardinality of strong non split block dominating set of G. In this paper, we study graph theoretic properties of ? ??_(snsb ) (G) and many bounds were obtain in terms of elements of G and its relationship with other domination parameters were found.
DOI: 10.17762/ijritcc2321-8169.150712
Split Middle Domination in Graphs
The middle graph of a graph G, denoted by M(G) is a graph whose vertex set is V(G)?E(G) and two vertices are adjacent if they are adjacent edges of G or one is a vertex and other is an edge incident with it. A dominating set D of M(G) is called split dominating set of M(G) if the induced subgraph ?V[M(G) ]-D? is disconnected. The minimum cardinality of D is called the split middle domination number of G and is denoted by? ??_SM (G). In this paper many bound on ? ??_SM (G) were obtained in terms of the vertices, edges and many other different parameters of G but not in terms of the elements of M(G). Further its relation with other different parameters are also developed
Evaluation of stable and non shattering isabgol cultivar - Gujarat isabgol 4
Isabgol growing area was surveyed during 2009-10 and selected genotypes were evaluated in preliminary evaluation trial (PET) during 2010-13 and in large scale varietal trial (LSVT) during 2013-15. It was found that JI-09-21 recorded better growth and yield characters and yield over check Gujarat Isabgol 3. The JI-09-21 did not shatter much even after water dripping and recommended for cultivation as Gujarat Isabgol 4
FORMULATION AND EVALUATAION OF COLON TARGETED MATRIX TABLET OF NAPROXEN
Objectives: The objective of the present study is to formulate the Colon targeted delivery containing Naproxen for chronopharmaceutical drug delivery system (ChrDDS) for treatment of rheumatoid arthritis, which are influenced by circadian rhythm. Chronopharmaceutical drug delivery system is capable of delivering drug when and where drug required most. Naproxen would remain in the GIT Fluid, intestinal fluid and it will liberate only in colonic fluid and gives better absorption.
Methods: The matrix core tablets of Naproxen were prepared by direct compression method by using Crosspovidone as superdisintegrant. From those optimesd batch core tablet is further going for coating. Coating was carried out by using natural gums like Xanthan gum, Guar gum, Chitosan and Pectin alone and in combination.
Results: From the experimental work Crosspovidone shows good drug release. Coating done by combination of Xanthan Gum and Chitosan shows better drug release (98.24%) in sustained release manner than other natural gums like Guar gum and pectin.
Conclusion: From the results obtained, it was concluded that the programmable Chronopharmaceutical drug release has been achieved from Crosspovidone containing core tablet compressed coated by combination of Xanthan gum and Chitosan over a 10 hrs period, consistent with the demands of chronotherapeutic drug delivery for rheumatoid arthritis
Maternal and perinatal outcome in instrumental vaginal deliveries over 5 years: a retrospective study
Background: Due to fear of trauma and less skill, use of instrumental vaginal delivery (IVD) is decreasing every year and incidence of caesarean section is increasing. Caesarean section is a major surgery associated with increased morbidity and mortality. This study evaluates the incidence of instrumental vaginal delivery and associated maternal and perinatal outcome.
Methods: This observational retrospective study was carried out in full term antenatal patients in labour with vertex presentation who had undergone operative vaginal deliveries during the study period from January 2017 to December 2021 at G.C.S. Hospital. Data were obtained from the hospital records and analysed which included the age, parity, incidence, indication, the APGAR scores of the babies and complications in the patient.
Results: Incidence of instrumental deliveries was found to be 1.98%. Most common indications for IVD were prolonged second stage of labour followed by foetal distress and post-dated pregnancy. Most common maternal complication was perineal tears and most common perinatal complication was neonatal intensive care unit (NICU) admission.
Conclusions: The decision to proceed with an operative vaginal delivery when a spontaneous vaginal delivery is not possible must be based upon maternal and foetal factors. Most common maternal complications were perineal tears, cervical tears, episiotomy extension, vaginal laceration and atonic postpartum hemorrhage (PPH). Most common neonatal complications were NICU admission most commonly for neonatal hyperbilirubinemia.
Distributions of the Conductance and its Parametric Derivatives in Quantum Dots
Full distributions of conductance through quantum dots with single-mode leads
are reported for both broken and unbroken time-reversal symmetry. Distributions
are nongaussian and agree well with random matrix theory calculations that
account for a finite dephasing time, , once broadening due to finite
temperature is also included. Full distributions of the derivatives of
conductance with respect to gate voltage are also investigated.Comment: 4 pages (REVTeX), 4 eps figure
Proposal to Search for Heavy Neutral Leptons at the SPS
A new fixed-target experiment at the CERN SPS accelerator is proposed that
will use decays of charm mesons to search for Heavy Neutral Leptons (HNLs),
which are right-handed partners of the Standard Model neutrinos. The existence
of such particles is strongly motivated by theory, as they can simultaneously
explain the baryon asymmetry of the Universe, account for the pattern of
neutrino masses and oscillations and provide a Dark Matter candidate.
Cosmological constraints on the properties of HNLs now indicate that the
majority of the interesting parameter space for such particles was beyond the
reach of the previous searches at the PS191, BEBC, CHARM, CCFR and NuTeV
experiments. For HNLs with mass below 2 GeV, the proposed experiment will
improve on the sensitivity of previous searches by four orders of magnitude and
will cover a major fraction of the parameter space favoured by theoretical
models.
The experiment requires a 400 GeV proton beam from the SPS with a total of
2x10^20 protons on target, achievable within five years of data taking. The
proposed detector will reconstruct exclusive HNL decays and measure the HNL
mass. The apparatus is based on existing technologies and consists of a target,
a hadron absorber, a muon shield, a decay volume and two magnetic
spectrometers, each of which has a 0.5 Tm magnet, a calorimeter and a muon
detector. The detector has a total length of about 100 m with a 5 m diameter.
The complete experimental set-up could be accommodated in CERN's North Area.
The discovery of a HNL would have a great impact on our understanding of
nature and open a new area for future research
Finite temperature effects in Coulomb blockade quantum dots and signatures of spectral scrambling
The conductance in Coulomb blockade quantum dots exhibits sharp peaks whose
spacings fluctuate with the number of electrons. We derive the
temperature-dependence of these fluctuations in the statistical regime and
compare with recent experimental results. The scrambling due to Coulomb
interactions of the single-particle spectrum with the addition of an electron
to the dot is shown to affect the temperature-dependence of the peak spacing
fluctuations. Spectral scrambling also leads to saturation in the temperature
dependence of the peak-to-peak correlator, in agreement with recent
experimental results. The signatures of scrambling are derived using discrete
Gaussian processes, which generalize the Gaussian ensembles of random matrices
to systems that depend on a discrete parameter -- in this case, the number of
electrons in the dot.Comment: 14 pages, 4 eps figures included, RevTe
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