QCD Critical Point in a Quasiparticle Model

Recent theoretical investigations have unveiled a rich structure in the quantum chromodynamics (QCD) phase diagram which consists of quark gluon plasma (QGP) and the hadronic phases but also supports the existence of a cross-over transition ending at a critical end point (CEP). We find a too large variation in determination of the coordinates of the CEP in the temperature (T), baryon chemical potential ($\mu_{B}$) plane and, therefore, its identification in the current heavy-ion experiments becomes debatable. Here we use an equation of state (EOS) for a deconfined QGP using a thermodynamically consistent quasiparticle model involving quarks and gluons having thermal masses. We further use a thermodynamically consistent excluded volume model for the hadron gas (HG) which was recently proposed by us. Using these equations of state, a first order deconfining phase transition is constructed using Gibbs' criteria. This leads to an interesting finding that the phase transition line ends at a critical point (CEP) beyond which a cross-over region exists. Using our thermal HG model, we obtain a chemical freeze out curve and we find that the CEP lies in close proximity to this curve as proposed by some authors. The coordinates of CEP are found to lie within the reach of RHIC experiment.Comment: 15 pages, 3 figures, 1 table; minor corrections, to be appeared in Phys. Rev.

The equatorial ionospheric response over Tirunelveli to the 15 January 2010 annular solar eclipse: observations

In this paper we present a case study of the annular solar eclipse effects on the ionization of E and F regions of equatorial ionosphere over Tirunelveli [77.8° E, 8.7° N, dip 0.4° N] by means of digital ionosonde on 15 January 2010. The maximum obscuration of the eclipse at this station was 84% and it occurred in the afternoon. The E and F1 layers of the ionosphere showed very clear decrease in their electron concentrations, whereas the F2 layer did not show appreciable changes. A reduction of 30% was observed in the <I>fo</I>F1 during the maximum phase of the eclipse. During the beginning phase of the eclipse, an enhancement of 0.97 MHz was observed in the <I>fo</I>F2 as compared to that of the control days. But the <I>fo</I>F2 decreased gradually as the eclipse progressed and a decrease of 0.59 MHz was observed towards the end phase of the eclipse. Observed variations in the <I>h</I>'F2 and <I>hm</I>F2 showed lower values than the control days, although <I>hm</I>F2 was found to increase a bit during the eclipse. Observed variability in the E, F1 and F2 layer ionospheric parameters on the eclipse day and their departure from the control days are discussed as the combined effect of annular eclipse and presence of counter equatorial electrojet (CEEJ)

Evaluating the Chinese Revised Controlling Behaviors Scale (C-CBS-R)

The present study evaluated the utility of the Chinese version of the Revised Controlling Behaviors Scale (C-CBS-R) as a measure of controlling behaviors in violent Chinese intimate relationships. Using a mixed-methods approach, in-depth, individual interviews were conducted with 200 Chinese women survivors to elicit qualitative data about their personal experiences of control in intimate relationships. The use of controlling behaviors was also assessed using the C-CBS-R. Interview accounts suggested that the experiences of 91 of the women were consistent with the description of coercive control according to Dutton and Goodman’s (2005) conceptualization of coercion. Using the split-half validation procedure, a receiver operating characteristics (ROC) curve analysis was conducted with the first half of the sample. The area under the curve (AUC) for using the C-CBS-R to identify high control was .99, and the cutoff score of 1.145 maximized both sensitivity and specificity. Applying the cutoff score to the second half gave a sensitivity of 96% and a specificity of 95%. Overall, the C-CBS-R has demonstrated utility as a measure of controlling behaviors with a cutoff score for distinguishing high from low levels of control in violent Chinese intimate relationships

Laminar Dispersion in Presence of Slip and Cbemical Reactions

Concentration profiles of a solute convectively diffusing and simultaneously undergoing homogeneous and heterogeneous chemical reactions under isothermal conditions in a non-Poisuelle laminar slip flow taking place in a closed parallel-plate channel with a permeable bed are presented. It is shown that presence of slip brings about an increase in concentration across the entire cross-section of the channel. Effect of varying reaction rate parameters on concentration profiles is also discussed

Dispersion in Presence of Slip and Chemical Reactions in Porous-Wall Tube Flow

This paper deals with the problem of studying the effect of tangential velocity slip on the concentration profiles of a solute which is convectively diffusing and simultaneously undergoing irreversible, first order homogeneous and heterogeneous chemical reactions in a porous wall tube, under isothermal laminar flow conditions. It is shown that the presence  of velocity slip at the porous wall induces an increase in the concentration of solute across the entirecross-section of the tube while an increase in the rates of chemical reactions is found to reduce the concentration under both slip and no-slip boundary conditions. Accurate eigen values, eigen functions and the concentration profiles are determined for the cases when slip or no-slip boundary condition holds at the wall

SHOTHAHARA ACTIVITIES OF DASHAMOOLA DRAVYAS AS AN ANTI INFLAMMATORY FORMULATION WITH SPECIAL REFERENCE TO CHARAK- A REVIEW

In Ayurveda texts, Charak Samhita deals with 50 different group of 10 herbs each with specific action and uses. It also deals with different basic formulations like Swarasa (juice), Kalka (paste), Kashaya (decoction) etc. Dashamoola is one of such 50 group of herbs as the name contains root of ten different plants i.e. Bilva, Gambhari, Shyonaka, Patala, Agnimantha, Prishniparni, Salparni, Kantakari, Vrihati &amp; Gokshura. Of these, first five’s are known as Brihad panchamoola and the remaining as Laghoo panchamoola. It is used in the form of Kwath or  Arishta (fermented decoction) or Kashaya according to Ayurveda. This formulation is used primarily for headache, relief of pain and swelling related to arthritis, pyrexia, abdominal distension and costo-chondral pain etc. It is also described as an analgesic used in arthritis and rheumatic conditions by the Ayurvedic practitioners. It is believed that the 10 ingredients of  Dashamoola may be serving different roles like adjuvant, carrier agent and stabilizer etc. evident from several studies. After reviewing the different published literatures studies on experimental models have shown to possess anti-inflammatory and anti-analgesic activities which are enumerated in this paper