4,297 research outputs found
Isospin effects on the mass dependence of balance energy
We study the effect of isospin degree of freedom on balance energy throughout
the mass range between 50 and 350 for two sets of isotopic systems with N/Z =
1.16 and 1.33 as well as isobaric systems with N/Z = 1.0 and 1.4. Our findings
indicate that different values of balance energy for two isobaric systems may
be mainly due to the Coulomb repulsion. We also demonstrate clearly the
dominance of Coulomb repulsion over symmetry energy.Comment: 5 pages, 3 figures In this version the discussion is in terms of N/Z
whereas in the journal the whole discussion is in terms of N/A. The
conclusions remain unaffecte
Knowledge of Maternal and Newborn Care Among Primary Level Health Workers in Kapilvastu District of Nepal
Background: Higher maternal and neonatal deaths are common in low‑ and middle‑income countries; due to less access to skilled help. Adequate knowledge and skills on maternal and newborn care (MNC) of community health workers can improve maternal and newborn health.Aims: To identify the knowledge of primary level health workers on some components of MNC.Subjects and Methods: Respondents were selected using simple random sampling method. For collecting the data, enumerators visited health institutions for 2 months from 1|st October to 31st November 2012, and structured interview schedule was used to gather the information. A cross‑sectional study was conducted in a total of one hundred and thirty‑seven primary level health workers in Kapilvastu district, Nepal. The Chi‑square test was employed to examine the association between the knowledge of health workers on MNC and designation and work experience. Data were analyzed using SPSS version 17.Results: In a total of 137 primary level health workers, more than half 53.2% (73/137) were senior auxiliary health workers/health assistant. Health workers having correct knowledge on contents of MNC were‑registration 32.1% (44/137), major components of antenatal care 57.7% (79/137), danger signs of pregnancy 39.4% (54/137), five cleans 59.1% (81/137), postnatal health problems 54.0% (74/137), majority to health action to newborn care, newborn bath and meaning of exclusive breastfeeding. There was a statistical association between designation of health workers and above‑mentioned components of MNC (P < 0.05).Conclusions: The differentials in the knowledge of MNC among primary level health suggest improving knowledge of the grass root level health workers with appropriate training and development programs.Keywords: Knowledge, Maternal and newborn care, Primary level health worker
Constraining phases of quark matter with studies of r-mode damping in neutron stars
The r-mode instability in rotating compact stars is used to constrain the
phase of matter at high density. The color-flavor-locked phase with kaon
condensation (CFL-K0) and without (CFL) is considered in the temperature range
10^8K < T <10^{11} K. While the bulk viscosity in either phase is only
effective at damping the r-mode at temperatures T > 10^{11} K, the shear
viscosity in the CFL-K0 phase is the only effective damping agent all the way
down to temperatures T > 10^8 K characteristic of cooling neutron stars.
However, it cannot keep the star from becoming unstable to gravitational wave
emission for rotation frequencies f ~ 56-11 Hz at T ~ 10^8-10^9 K. Stars
composed almost entirely of CFL or CFL-K0 matter are ruled out by observation
of rapidly rotating neutron stars, indicating that dissipation at the
quark-hadron interface or nuclear crust interface must play a key role in
damping the instability.Comment: 8 pages, 2 figure
Annihilation of vortex dipoles in an Oblate Bose-Einstein Condensate
We theoretically explore the annihilation of vortex dipoles, generated when
an obstacle moves through an oblate Bose-Einstein condensate, and examine the
energetics of the annihilation event. We show that the gray soliton, which
results from the vortex dipole annihilation, is lower in energy than the vortex
dipole. We also investigate the annihilation events numerically and observe
that the annihilation occurs only when the vortex dipole overtakes the obstacle
and comes closer than the coherence length. Furthermore, we find that the noise
reduces the probability of annihilation events. This may explain the lack of
annihilation events in experimental realizations.Comment: 8 pages and 9 figure
Application of Tikhonov Regularized Methods to Image Deblurring Problem
We consider the monotone inclusion problems in real Hilbert spaces. Proximal
splitting algorithms are very popular technique to solve it and generally
achieve weak convergence under mild assumptions. Researchers assume strong
conditions like strong convexity or strong monotonicity on the considered
operators to prove strong convergence of the algorithms. Mann iteration method
and normal S-iteration method are popular methods to solve fixed point
problems. We propose a new common fixed point algorithm based on normal
S-iteration method {using Tikhonov regularization }to find common fixed point
of nonexpansive operators and prove strong convergence of the generated
sequence to the set of common fixed points without assuming strong convexity
and strong monotonicity. Based on the proposed fixed point algorithm, we
propose a forward-backward-type algorithm and a Douglas-Rachford algorithm in
connection with Tikhonov regularization to find the solution of monotone
inclusion problems. Further, we consider the complexly structured monotone
inclusion problems which are very popular these days. We also propose a
strongly convergent forward-backward-type primal-dual algorithm and a
Douglas-Rachford-type primal-dual algorithm to solve the monotone inclusion
problems. Finally, we conduct a numerical experiment to solve image deblurring
problems
Effects of thyroid hormone on HSV-1 gene regulation: implications in the control of viral latency and reactivation
Thyroid hormone (TH) is involved in many biological functions such as animal development, cell differentiation, etc. Variation and/or disruption of plasma TH level often led to abnormalities and physiological disorders. TH exerts the effects through its nuclear receptors (TR). Literature showed that procedures resulted in TH alteration also linked to reactivation of several viruses including Herpes Simplex Virus Type -1 (HSV-1). Bioinformatic analyses revealed a number of putative TH responsive elements (TRE) located in the critical regulatory regions of HSV-1 genes such as thymidine kinase (TK), latency associated transcript (LAT), etc. Studies using neuronal cell lines have provided evidences demonstrating that liganded TR regulated viral gene expression via chromatin modification and controlled viral replication. The removal of TH reversed the inhibition and induced the viral replication previously blocked by TH. These results suggest that TH may have implication to participate in the control of reactivation during HSV-1 latency
On the completability of incomplete orthogonal Latin rectangles
We address the problem of completability for 2-row orthogonal Latin rectangles (OLR2). Our approach is to identify all pairs of incomplete 2-row Latin rectangles that are not com- pletable to an OLR2 and are minimal with respect to this property; i.e., we characterize all circuits of the independence system associated with OLR2. Since there can be no poly- time algorithm generating the clutter of circuits of an arbitrary independence system, our work adds to the few independence systems for which that clutter is fully described. The result has a direct polyhedral implication; it gives rise to inequalities that are valid for the polytope associated with orthogonal Latin squares and thus planar multi-dimensional assign- ment. A complexity result is also at hand: completing a set of (n - 1) incomplete MOLR2 is NP-complete
Architecture and Applications of IoT Devices in Socially Relevant Fields
Number of IoT enabled devices are being tried and introduced every year and
there is a healthy competition among researched and businesses to capitalize
the space created by IoT, as these devices have a great market potential.
Depending on the type of task involved and sensitive nature of data that the
device handles, various IoT architectures, communication protocols and
components are chosen and their performance is evaluated. This paper reviews
such IoT enabled devices based on their architecture, communication protocols
and functions in few key socially relevant fields like health care, farming,
firefighting, women/individual safety/call for help/harm alert, home
surveillance and mapping as these fields involve majority of the general
public. It can be seen, to one's amazement, that already significant number of
devices are being reported on these fields and their performance is promising.
This paper also outlines the challenges involved in each of these fields that
require solutions to make these devices reliableComment: 1
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