411 research outputs found
The role of National Human Rights Commission, in Administration of Human Rights Justice: An Analytical Study
Not availabl
Intrinsic selection biases of ground-based gravitational wave searches for high-mass BH-BH mergers
The next generation of ground-based gravitational wave detectors may detect a
few mergers of comparable-mass M\simeq 100-1000 Msun ("intermediate-mass'', or
IMBH) spinning black holes. Black hole spin is known to have a significant
impact on the orbit, merger signal, and post-merger ringdown of any binary with
non-negligible spin. In particular, the detection volume for spinning binaries
depends significantly on the component black hole spins. We provide a fit to
the single-detector and isotropic-network detection volume versus (total) mass
and arbitrary spin for equal-mass binaries. Our analysis assumes matched
filtering to all significant available waveform power (up to l=6 available for
fitting, but only l<= 4 significant) estimated by an array of 64 numerical
simulations with component spins as large as S_{1,2}/M^2 <= 0.8. We provide a
spin-dependent estimate of our uncertainty, up to S_{1,2}/M^2 <= 1. For the
initial (advanced) LIGO detector, our fits are reliable for
(). In the online version of this
article, we also provide fits assuming incomplete information, such as the
neglect of higher-order harmonics. We briefly discuss how a strong selection
bias towards aligned spins influences the interpretation of future
gravitational wave detections of IMBH-IMBH mergers.Comment: 18 pages, 15 figures, accepted by PRD. v2 is version accepted for
publication, including minor changes in response to referee feedback and
updated citation
A study of the composition of some eye cosmetics (kohls) used in the United Arab Emirates
A total of 23 kohl samples was analyzed using X-ray powder diffraction (XRPD) and scanning electron microscopy (SEM). Nineteen samples were obtained in Abu Dhabi and four in Dubai. None of the samples were made in the United Arab Emirates. The main component of 11 samples was found to be galena (PbS). For the remaining 12 samples, the main component was found to be one of the following: amorphous carbon, zincite (ZnO), sassolite (H3BO3) or calcite/aragonite (CaCO3). © 2002 Elsevier Science Ireland Ltd. All rights reserved
ASSOCIATION OF SUBCLINICAL HYPOTHYROIDISM WITH METABOLIC SYNDROME: A CROSSSECTIONAL STUDY FROM WESTERN INDIA
ABSTRACTObjective: Metabolic syndrome (MetS) and subclinical hypothyroidism (SCH) both are known to have adverse cardiovascular outcomes. Availablestudies have shown variable results on the association of SCH with MetS as well as individual components of MetS. We aimed to study the associationof SCH with MetS and its individual components of MetS.Methods: This cross-sectional study was carried out in individuals volunteered for health checkup at tertiary care teaching hospital in Western India.About 60 cases with MetS and 120 controls without having MetS were recruited. Demographic data such as history of diabetes mellitus, hypertension,dyslipidemia, blood pressure (BP), waist circumference and serum T3, serum T4, thyroid stimulating hormone, fasting blood sugar, fasting lipidprofile, and hemoglobin A1c were collected and statistically analyzed. Statistical analysis was done by using SPSS sav software packages. Chi-squaretest was used for the comparison of qualitative data.Results: SCH was present in 52 (28.9%) among 180 study participants. SCH was present in 35 (58.33%) participants having MetS and in 17 (14.16%)of controls. There was a strong association between SCH and MetS (p<0.001). Significant association of SCH with diastolic BP (p=0.017) and withcentral obesity (p=0.004) was observed but not with high-density lipoprotein, triglyceride, hyperglycemia, systolic BP, total cholesterol, and lowdensitylipoprotein.Conclusion: We observed a strong association of SCH with MetS. We also observed significant association of SCH with diastolic BP and with obesity.The finding of this study indicates the need to screen individuals with MetS for SCH.Keywords: Central obesity, Diastolic blood pressure, Hypertriglyceridemia, Hypertension, Cardiovascular morbidity, Inflammation, Insulin resistance,Low-density lipoprotein, High-density lipoprotein.Ă
Literature Review of Permanent Magnet AC Motors and Drive for Automotive Application
Permanent Magnet Synchronous Motor (PMSM's) are used in many applications that require rapid torque response and high â performance operation. New developed materials such as magnetic materials, conducting materials and insulating materials as well as several new applications have greatly contributed to development of small and special purpose machines. Using such materials the size of the motor would considerably reduce and high performance motors can be built. Due to several new applications these motors are quite popular &use in a developing country such as India for Automotive application. In a permanent magnet synchronous motor, the dc field winding of the rotor is replaced by a permanent magnet. The advantages are elimination of field copper loss, higher power density, lower rotor inertia and more robust construction of the rotor. The demerits are loss of flexibility of field flux control and possible demagnetization effect. The PMSM has higher efficiency than an induction motor, but generally its cost is higher, which makes the life cycle cost of the drive somewhat lower. PMSM particularly at low power range are widely used in industry. Recently, the interest in their application is growing, particularly up to 100 KW, only reluctance motor are simpler in construction and in assembly procedure then PMSM, but reluctance motor generally developed less torque per unit of current and per unit of weight. Therefore, on a basis of power output per unit weight (and general, per unit volume) the PMSM is superior to all other brushless synchronous motor especially with the commercial feasibility of rare earth magnets. Section 1. describes the introduction section 2.describes Classification of permanent magnet AC motor section 3. describes the conclusion
Characterization and assembly of the Pseudomonas aeruginosa aspartate transcarbamoylase-pseudo dihydroorotase complex
Pseudomonas aeruginosa is a virulent pathogen that has become more threatening with the emergence of multidrug resistance. The aspartate transcarbamoylase (ATCase) of this organism is a dodecamer comprised of six 37 kDa catalytic chains and six 45 kDa chains homologous to dihydroorotase (pDHO). The pDHO chain is inactive but is necessary for ATCase activity. A stoichiometric mixture of the subunits associates into a dodecamer with full ATCase activity. Unlike other known ATCases, the P. aeruginosa catalytic chain does not spontaneously assemble into a trimer. Chemical-crosslinking and size-exclusion chro- matography showed that P. aeruginosa ATCase is monomeric which accounts for its lack of catalytic activity since the active site is a composite comprised of residues from adjacent monomers in the trimer. Circular dichroism spectroscopy indicated that the ATCase chain adopts a structure that contains secondary structure elements although neither the ATCase nor the pDHO subunits are very stable as determined by a thermal shift assay. Formation of the complex increases the melting temperature by about 30 ÌC. The ATCase is strongly inhibited by all nucleotide di- and triphosphates and exhibits extreme cooperativity. Previous studies suggested that the regulatory site is located in an 11-residue extension of the amino end of the catalytic chain. However, deletion of the extensions did not affect catalytic activity, nucleotide inhibition or the assembly of the dodecamer. Nucleotides destabilized the dode- camer which probably accounts for the inhibition and apparent cooperativity of the substrate saturation curves. Contrary to previous interpretations, these results suggest that P. aerugi- nosa ATCase is not allosterically regulated by nucleotides
Efficient asymptotic frame selection for binary black hole spacetimes using asymptotic radiation
Previous studies have demonstrated that gravitational radiation reliably
encodes information about the natural emission direction of the source (e.g.,
the orbital plane). In this paper, we demonstrate that these orientations can
be efficiently estimated by the principal axes of , an average of the
action of rotation group generators on the Weyl tensor at asymptotic infinity.
Evaluating this average at each time provides the instantaneous emission
direction. Further averaging across the entire signal yields an average
orientation, closely connected to the angular components of the Fisher matrix.
The latter direction is well-suited to data analysis and parameter estimation
when the instantaneous emission direction evolves significantly. Finally, in
the time domain, the average provides fast, invariant diagnostics of
waveform quality.Comment: Submitted to PR
The response of the ionospheric peak electron density (NmF2) to solar activity)
The ionospheric peak electron density NmF2, simulated with the Coupled
Thermosphere Ionosphere Plasmasphere electrodynamics (CTIPe) model was used to
study the ionospheric response to solar flux in years of low (2008) and high (2013)
solar activity. The CTIPe NmF2 was compared to the Whole Atmosphere Community
Climate Model with Thermosphere and Ionosphere Extension (WACCM-X) and the
Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC)
NmF2 in March and July of 2008 and 2013. The comparison shows that the CTIPe NmF2 is lower than the COSMIC andWACCM-X NmF2. Both models successfully reproduce the semi-annual variations seen in the COSMIC observations. Analysis of the 27-day variations of the CTIPe NmF2 shows that the midnight NmF2 deviations are stronger than the midday deviations. In addition, at low solar activity, the 27-day variations of NmF2 are larger in the Southern Hemisphere, while at high solar activity, the 27-day variations of NmF2 are larger at the equator and in the Northern Hemisphere.
An ionospheric delay was estimated with CTIPe simulated NmF2 at the 27-day solar
rotation period during low and high solar activity. During low (high) solar activity, an
ionospheric delay of about 12 (34) hours is predicted indicating an increasing ionospheric delay with solar activity.Die maximale ionosphÀrische Elektronendichte NmF2, die mit dem Coupled Thermosphere Ionosphere Plasmasphere electrodynamics (CTIPe) Modell
simuliert wurde, wurde zur Untersuchung der ionosphÀrischen Reaktion in Jahren
mit geringer (2008) und hoher (2013) SonnenaktivitÀt verwendet. CTIPe vorhergesagte NmF2 wurde mit derjenigen des Whole Atmosphere Community Climate Model with Thermosphere and Ionosphere Extension (WACCM-X) und Messwerten des Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) im MÀrz und Juli der Jahre 2008 und 2013 verglichen. Der Vergleich zeigt, dass NmF2
aus CTIPe geringer ist als das COSMIC gemessene und von WACCM-X simulierte.
Beide Modelle reproduzieren erfolgreich die von COSMIC beobachteten halbjÀhrlichen
Schwankungen. Die Analyse der 27-tÀgigen Schwankungen des CTIPe NmF2 zeigt,
dass die mitternÀchtlichen NMF2-Abweichungen stÀrker sind als diejenigen am Mittag.
AuĂerdem sind bei geringer SonnenaktivitĂ€t die 27-Tage-Abweichungen von NmF2 in der SĂŒdhemisphĂ€re gröĂer, wĂ€hrend bei hoher SonnenaktivitĂ€t die 27-Tage-Abweichungen von NmF2 am Ăquator und in der NordhemisphĂ€re gröĂer sind.
Die ionosphÀrische Verzögerung wÀhrend geringer und hoher SonnenaktivitÀt wurde
fĂŒr die 27-tĂ€gige Sonnenrotation mit CTIPe simuliert. Bei geringer (hoher) SonnenaktivitĂ€t wird eine ionosphĂ€rische Verzögerung von etwa 12 (34) Stunden beobachtet, was auf eine zunehmende ionosphĂ€rische Verzögerung mit zunehmender SonnenaktivitĂ€t hinweist
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