The Black Women Anti-Defamation Coalition: A Proposal for the Remediation of the Negative, Controlling Images of Black Women

This research sets out to highlight the life-altering degree to which negative, domineering depictions of Black women has had and continues to have on their livelihood and also to argue that due to their systemic inability to control and craft their own reputation, this should be categorized as a human rights violation and enforced on the grounds of defamation law. Although I am not a Black woman myself, as a Black man who was raised by three Black women, I have seen first hand the importance of proving this point. Many Black women scholars, many of whom I will be referencing in this research, have already done the crucial work of analyzing the condition of Black women in America and I don’t believe that I am providing a better perspective, but instead hope to offer a unique perspective as a Black male looking in from the outside and noticing that something isn’t quite right with the picture I see. I approach this issue from both a legal and media analytical standpoint informed by critical race theory, which allows me to construct constitutionally sound and concrete evidence as to how and why redress should be granted to Black women. Underpinning this research is my desire to test out human rights as a model of action/activism for Black individuals and in determining how, if at all, it is going to work in this specific case for Black women

Nature of cyclical changes in the timing residuals from the pulsar B1642-03

We report an analysis of timing data for the pulsar B1642-03 (J1645-0317) gathered over the 40-year time span between 1969 and 2008. During this interval, the pulsar experienced eight glitch-like events with a fractional increase in the rotation frequency Deltanu/nu=(0.9-2.6)x10^{-9}. We have revealed two important relations in the properties of these peculiar glitches. The first result shows that there is a strong linear correlation between the amplitude of the glitch and the time interval to the next glitch. The second result shows that the amplitude of the glitches is modulated by a periodic large-scale sawtooth-like function. As a result of this modulation, the glitch amplitude varies discretely from glitch to glitch with a step of 1.5x10^{-9} Hz in the range (2.4-6.9)x10^{-9} Hz. The post-glitch time interval also varies discretely with a step of about 600 days in the range 900-2700 days. An analysis of the data showed that three modulation schemes with modulation periods of 43 years, 53 years and 60 years are possible. The best model is the 60-year modulation scheme including 12 glitches. We make a conclusion that the nature of the observed cyclical changes in the timing residuals from PSR B1642-03 is a continuous generation of peculiar glitches whose amplitudes are modulated by a periodic large-scale sawtooth-like function. As the modulation function is periodical, the picture of cyclical timing residuals will be exactly repeated in each modulation period or every 60 years.Comment: 26 pages, 9 figures. Accepted for publication in the Astrophysical Journa

Rational use of blood and blood components in a Tertiary Care Hospital: A Crossectional study.

Abstract: Introduction: Blood transfusion is a life saving process and a complex phenomenon. Judicial use of blood and its components is the need of the hour. Objectives: The present study was planned with the objective to assess the appropriateness of blood transfusions in patients admitted in the hospital as per WHO guidelines. Materials and Methods: A crossectional study was conducted at tertiary care hospital for a period of one and a half years. Records of patients from blood bank were evaluated to collect data. MS Excel was used to enter the data and IBM SPSS Statistics for Windows (version 20.0) was used to analyse the data. Results: Overall prevalence rate of appropriate use of blood component is 62.63%. Conclusions: Retrospective audits are effective tool to increase rational use of blood by identifying areas requiring intervention to change transfusion practic

Cyclical Changes in the Timing Residuals from the Pulsar B0919+06

We report the detection of a large glitch in the pulsar B0919+06 (J0922+0638). The glitch occurred in 2009 November 5 (MJD 55140) and was characterized by a fractional increase in the rotation frequency of Deltanu/nu=1.3x10^{-6}. A large glitch happens in the pulsar whose rotation has unstable character. We present the results of the analysis of the rotation behavior of this pulsar over the 30-year time span from 1979 to 2009. These results show that the pulsar's rotation frequency underwent continuous, slow oscillations which look like glitch-like events. During the 1991-2009 interval, the pulsar experienced a continuous sequence of 12 slow glitches with a fractional increase in the rotation frequency Deltanu/nu=1.5x10^{-9}. All the slow glitches observed have a similar signature related to a slow increase in the rotation frequency during 200 days and the subsequent relaxation back to the pre-glitch value during 400 days. We show that a continuous sequence of such slow glitches is characterized by practically identical amplitudes equal to Deltanu=3.5x10^{-9} Hz and identical time intervals between glitches of about 600 days and is well described by a periodic sawtooth-like function. The detection of two different phenomena, such as a large glitch and a sequence of slow glitches, indicates the presence of two types of discontinuities in the rotation frequency of the pulsar B0919+06. These discontinuities can be classified as normal and slow glitches.Comment: 24 pages, 5 figures. Submitted to Ap

A Micro-glitch in the Millisecond Pulsar B1821-24 in M28

We report on the observation of a very small glitch observed for the first time in a millisecond pulsar, PSR B1821-24 located in the globular cluster M28. Timing observations were mainly conducted with the Nancay radiotelescope (France) and confirmation comes from the 140ft radiotelescope at Green Bank and the new Green Bank Telescope data. This event is characterized by a rotation frequency step of 3 nHz, or 10^-11 in fractional frequency change along with a short duration limited to a few days or a week. A marginally significant frequency derivative step was also found. This glitch follows the main characteristics of those in the slow period pulsars, but is two orders of magnitude smaller than the smallest ever recorded. Such an event must be very rare for millisecond pulsars since no other glitches have been detected when the cumulated number of years of millisecond pulsar timing observations up to 2001 is around 500 for all these objects. However, pulsar PSR B1821-24 is one of the youngest among the old recycled ones and there is likely a correlation between age, or a related parameter, and timing noise. While this event happens on a much smaller scale, the required adjustment of the star to a new equilibrium figure as it spins down is a likely common cause for all glitches.Comment: Accepted by ApJ Letters, 5 pages, 2 figures, LaTex (uses emulateapj.sty

Precision Timing of Two Anomalous X-Ray Pulsars

We report on long-term X-ray timing of two anomalous X-ray pulsars, 1RXS J170849.0-400910 and 1E 2259+586, using the Rossi X-ray Timing Explorer. In monthly observations made over 1.4 yr and 2.6 yr for the two pulsars, respectively, we have obtained phase-coherent timing solutions which imply that these objects have been rotating with great stability throughout the course of our observations. For 1RXS J170849.0-400910, we find a rotation frequency of 0.0909169331(5) Hz and frequency derivative -15.687(4) x 10^(-14) Hz/s, for epoch MJD 51215.931. For 1E 2259+586, we find a rotation frequency of 0.1432880613(2)Hz, and frequency derivative -1.0026(7) x 10^(-14) Hz/s, for epoch MJD 51195.583. RMS phase residuals from these simple models are only about 0.01 cycles for both sources. We show that the frequency derivative for 1E 2259+586 is inconsistent with that inferred from incoherent frequency observations made over the last 20 yr. Our observations are consistent with the magnetar hypothesis and make binary accretion scenarios appear unlikely.Comment: 12 pages including 3 figures. To appear in ApJ Letter

Gravitational radiation from nonaxisymmetric spherical Couette flow in a neutron star

The gravitational wave signal generated by global, nonaxisymmetric shear flows in a neutron star is calculated numerically by integrating the incompressible Navier--Stokes equation in a spherical, differentially rotating shell. At Reynolds numbers \Rey \gsim 3 \times 10^{3}, the laminar Stokes flow is unstable and helical, oscillating Taylor--G\"ortler vortices develop. The gravitational wave strain generated by the resulting kinetic-energy fluctuations is computed in both $+$ and $\times$ polarizations as a function of time. It is found that the signal-to-noise ratio for a coherent, $10^{8}$-{\rm s} integration with LIGO II scales as $6.5 (\Omega_*/10^{4} {\rm rad} {\rm s}^{-1})^{7/2}$ for a star at 1 {\rm kpc} with angular velocity $\Omega_*$. This should be regarded as a lower limit: it excludes pressure fluctuations, herringbone flows, Stuart vortices, and fully developed turbulence (for \Rey \gsim 10^{6}).Comment: (1) School of Physics, University of Melbourne, Parkville, VIC 3010, Australia. (2) Departamento de Fisica, Escuela de Ciencias,Universidad de Oriente, Cumana, Venezuela, (3) Department of Mechanical Engineering, University of Melbourne, Parkville, VIC 3010, Australia. Accepted for publication in The Astrophysical Journal Letter

Superfluid turbulence and pulsar glitch statistics

Experimental evidence is reviewed for the existence of superfluid turbulence in a differentially rotating, spherical shell at high Reynolds numbers (\Rey\gsim 10^3), such as the outer core of a neutron star. It is shown that torque variability increases with \Rey, suggesting that glitch activity in radio pulsars may be a function of \Rey as well. The \Rey distribution of the 67 glitching radio pulsars with characteristic ages $\tau_c \leq 10^6$ {\rm yr} is constructed from radio timing data and cooling curves and compared with the \Rey distribution of all 348 known pulsars with $\tau_c \leq 10^6$ {\rm yr}. The two distributions are different, with a Kolmogorov-Smirnov probability $\geq 1 - 3.9 \times 10^{-3}$. The conclusion holds for (modified) Urca and nonstandard cooling, and for Newtonian and superfluid viscosities

Domestic violence against women: a crossectional study in rural area of Amravati district of Maharashtra, India

Background: Domestic violence against women is a matter of serious public health concern in most of the communities and culture. In India, the problem has been highlighted after legislation against domestic violence in 2005, popularly known as the protection of women from domestic violence act. Main objectives of the study were to assess the prevalence of domestic violence against women, to study the sociodemographic factors in females suffering from domestic violence and to identify causes of domestic violence in them.Methods: A crossectional study was carried in the field practice area of rural health training centre of Dr. Panjabrao Deshmukh Memorial Medical College, Nerpinglai in Amravati district of Maharashtra state for a period of 3 months. Simple random sampling method was used for the selection of samples. The study participants were interviewed using a predesigned pretested questionnaire. Proportion, Chi square test were calculated for the analysis of the study.Results: Out of 400 study participants interviewed, 161 (40.25%) reported some type of violence i.e. either in the form of physical, emotional or sexual violence in their life time or in recent past. The most common type of violence reported was physical violence. The most common cause of domestic violence reported in our study was financial problems followed by influence under alcohol.  Conclusions: The prevalence of domestic violence was 40.25% which is still high and necessary measures should be taken to strengthen the laws for women and to empower them

A giant glitch in PSR J1718-3718

Radio timing observations of the high-magnetic-field pulsar PSR J1718-3718 have shown that it suffered a large glitch with Dnu_g/nu = (33.25 +/- 0.01) x 10^{-6} between 2007 September (MJD 54336) and 2009 January (MJD 54855). This is the largest pulsar glitch ever observed. As is common, there was a small increase in braking torque at the time of the glitch but, unlike all other pulsars, the braking torque has continued to increase over the two years since the glitch. Polarization observations show that the mean pulse profile has about 30% linear polarization with a smooth change of position angle through the pulse and give a rotation measure of -160 +/- 22 rad m^{-2}. There was no detectable change in pulse profile at the time of the glitch. The timing observations also gave an improved dispersion measure of 371.1 +/- 1.7 cm^{-3}pc.Comment: In press ApJ Letter