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Search Results: 1 - 10 of 465094 matches for " Ng A "
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The extent of inequalities in relation to maternal and newborn health at community level: a baseline study in Ntchisi District, Malawi.
J Ng'ombe, A Kasiya
Malawi Medical Journal , 2006,
Abstract: This is a summary of findings from a social analysis studies carried out by CARE as a baseline study in implementing a community mobilization approach to improve maternal and newborn health (MNH). The aim of the study was to find out the extent of the existing inequalities in relation to MNH. The study was conducted in three communities in Ntchisi district for a period of 8 months (October 2004 to May 2005). The findings revealed that there are social inequalities between women in accessing health services, information and support in maternal and neonatal health. Meaning that maternal health services at community level may not serve everyone due to criteria that is applied locally to decide who benefits. The study also found that there is inadequate capacity and coordination at community level in maternal health support system leading to inequalities in accessing maternal and newborn health services. The study concluded that communities can play an effective role in facilitating MNH services if they can have common understanding and ownership of MNH issues for them to be mobilized and to facilitate access to MNH services. Malawi Medical Journal Vol. 18 (2) 2006: pp. 72-76
3-(3,4-Dimethoxyphenyl)-1-(3-pyridyl)prop-2-en-1-one monohydrate
A. Jayarama,Seik Weng Ng
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809013944
Abstract: The pyridyl and aryl rings in the title compound, C16H15NO3·H2O, which are located at the ends of the propenone unit, are nearly coplanar with this unit [dihedral angles = 3.74 (14) and 5.06 (13)°, respectively]; the rings are inclined at an angle of 6.2 (1)° with respect to each other. The solvent water molecule forms hydrogen bonds with the pyridyl N atom and also with a symmetry-related water molecule.
3-[4-(Dimethylamino)phenyl]-1-(3-pyridyl)prop-2-en-1-one
A. Jayarama,Seik Weng Ng
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809013956
Abstract: The pyridyl and aryl rings in the title compound, C16H16N2O, which are located at the ends of the propenone unit, are inclined at an angle of 17.1 (1)° with respect to each other.
A Constrained Tectonics Model for Coronal Heating
C. S. Ng,A. Bhattacharjee
Physics , 2011, DOI: 10.1086/525518
Abstract: An analytical and numerical treatment is given of a constrained version of the tectonics model developed by Priest, Heyvaerts, & Title [2002]. We begin with an initial uniform magnetic field ${\bf B} = B_0 \hat{\bf z}$ that is line-tied at the surfaces $z = 0$ and $z = L$. This initial configuration is twisted by photospheric footpoint motion that is assumed to depend on only one coordinate ($x$) transverse to the initial magnetic field. The geometric constraints imposed by our assumption precludes the occurrence of reconnection and secondary instabilities, but enables us to follow for long times the dissipation of energy due to the effects of resistivity and viscosity. In this limit, we demonstrate that when the coherence time of random photospheric footpoint motion is much smaller by several orders of magnitude compared with the resistive diffusion time, the heating due to Ohmic and viscous dissipation becomes independent of the resistivity of the plasma. Furthermore, we obtain scaling relations that suggest that even if reconnection and/or secondary instabilities were to limit the build-up of magnetic energy in such a model, the overall heating rate will still be independent of the resistivity.
Anisotropic MHD Turbulence
C. S. Ng,A. Bhattacharjee
Physics , 2011, DOI: 10.1063/1.2778956
Abstract: The solar wind and the interstellar medium are permeated by large-scale magnetic fields that render magnetohydrodynamic (MHD) turbulence anisotropic. In the weak-turbulence limit in which three-wave interactions dominate, analytical and high-resolution numerical results based on random scattering of shear-Alfv\'en waves propagating parallel to a large-scale magnetic field, as well as direct simulations demonstrate rigorously an anisotropic energy spectrum that scales as $k^{-2}_\perp$, instead of the famous Iroshnikov-Kraichnan (IK) spectrum of $k^{-3/2}$ for the isotropic case. Even in the absence of a background magnetic field, anisotropy is found to develop with respect to the local magnetic field, although the energy spectrum is globally isotropic and is found to be consistent with a $k^{-3/2}$ scaling. It is also found in direct numerical simulations that the energy cascade rate is much closer to IK scaling than a Kolmogorov scaling. Recent observations in the solar wind on cascade rates (as functions of the proton temperature and solar wind speed at 1 AU) seem to support this result [Vasquez et al. 2007].
Alcoves et p-rang des variétés abéliennes
B. C. Ng,A. Genestier
Mathematics , 2001,
Abstract: We study the relation between the $p$-rank of abelian varieties in characteristic $p$ and the Kottwitz-Rapoport's stratification of the special fiber modulo $p$ of the moduli space of principally polarized abelian varieties with Iwahori type level structure on $p$. In particular, the density of the ordinary locus in that special fiber is proved.
Prior Negative Mood Buffers Some Individuals from Subsequent Negative Events: The Moderating Role of Neuroticism  [PDF]
Weiting Ng
Psychology (PSYCH) , 2011, DOI: 10.4236/psych.2011.25069
Abstract: The effects of mood on cognition are well-documented. However, would mood influence subsequent emotional reactions? The present research shows that prior moods interact with neuroticism to influence subsequent emotional experiences. Low-neuroticism individuals who initially felt negative subsequently experienced less negative emotions toward a slightly unpleasant task, relative to those who initially felt positive. Conversely, there were no mood effects on high-neuroticism individuals. This demonstrates that surprisingly, a prior negative, rather than positive, mood buffers low- but not high-neuroticism individuals from the effect of a subsequent unpleasant event on negative emotions. The possible mechanism underlying this effect—negative mood repair—is also discussed.
Storytelling through Art: Teaching the History of Indonesia with Video Games  [PDF]
Josua Ng
Art and Design Review (ADR) , 2019, DOI: 10.4236/adr.2019.71004
Abstract: Games nowadays have been associated with the decline of a child’s academic performance. Whether this is true or not, it remains to be seen, as there’s no link that has been found between the two after several researchers conducted their own research. This paper’s aim is to discuss whether the game art motivates the user to find out more about the topic that are brought up in the said game, which in this case is the history of Indonesia, specifically from the periods of just before and during the Japanese Occupation to the Declaration of Indonesia’s Independence in 1945. Aside from accurate depiction of objects, buildings or events, another question posed is whether the chosen art style conveys the atmosphere of the situation depicted, and if it helps with the storytelling of the game.
Prevalence and Incidence of HIV Infection among Fishermen along Lake Victoria Beaches in Kisumu County, Kenya  [PDF]
Raphael Omusebe Ondondo, Zipporah Waithera Ng’ang’a, Solomon Mpoke, Michael Kiptoo, Elizabeth A. Bukusi
World Journal of AIDS (WJA) , 2014, DOI: 10.4236/wja.2014.42027
Abstract:

Background: Herpes simplex virus type-2 (HSV-2) and human papillomavirus (HPV) are common sexually transmitted infections (STIs) among fishing communities and are associated with high HIV prevalence in this underserved population. However, there is limited knowledge on HIV incidence among fishermen. This study aimed at determining prevalence, incidence and risk factors associated with HIV infection among fishermen in Kisumu Kenya. Methods: Three hundred fishermen were evaluated for baseline HIV, HSV-2, HPV infection and a structured questionnaire administered. HIV incidence was assessed after 12 months among those initially HIV negative. HIV incidence rate in person-years and prevalence were estimated. Multivariate logistic regression was used to determine factors independently associated with HIV acquisition. Results: HIV prevalence was 23.3% (95% CI: 18.5 - 28.1). Risk factors for baseline HIV prevalence were older age (aOR = 2.13; 95% CI: 1.25 - 5.07), history of STI (aOR 4.21; 95% CI: 2.07 - 9.34), baseline HPV infection (aOR 2.13; 95% CI: 1.05 - 4.77), number of lifetime sexual partners (>5) aOR = 5.76 (95% CI: 1.41 - 13.57) and transactional sex (aOR = 10.98; 95% CI: 1.86 - 19.34). Condom uses with new sexual partner (aOR 0.21, 95% CI: 0.08 - 0.55) and during most recent sexual act (aOR 0.09, 95% CI: 0.03 - 0.61), were negatively associated with HIV prevalence. HIV incidence was 4.2 (95% CI = 1.3 - 7.1) per 100 person-years with being single (aIRR = 8.32; 95% CI: 1.27 - 54.67) as an independent risk factor. Condom use with new sexual partner (aIRR = 0.11; 95% CI: 0.01 - 0.89) and recent sex with wife/regular girlfriend (compared to sex worker/casual partner; aIRR = 0.03; 95% CI: 0.01 - 0.35) were associated with reduced risk of HIV acquisition. Conclusion: Inconsistent condom use and transactional/casual sexual partnerships were the main high-risk sexual behaviors in addition to marital status explaining the high HIV acquisition rate among fishermen. Intensified safer sex promotion is urgently needed in this subpopulation to avert new HIV infections.

Prevalence, Incidence and Risk Factors for Acquisition of Herpes Simplex Virus Type 2 among Fishermen on the Shores of Lake Victoria in Kisumu County, Kenya  [PDF]
Raphael O. Ondondo, Zipporah W. Ng’ang’a, Solomon Mpoke, Michael K. Kiptoo, Elizabeth A. Bukusi
Advances in Infectious Diseases (AID) , 2014, DOI: 10.4236/aid.2014.42016
Abstract:

Background: Herpes simplex virus Type 2 (HSV-2) has been associated with HIV infection. More recently, HSV-2 incidence has been linked to HIV acquisition. A few studies have suggested that the fishing communities have a high HSV-2 prevalence but there is limited knowledge on HSV-2 incidence and associated risk factors among fishermen. Methods: Three hundred fishermen were consented, and evaluated for baseline HSV-2 serology status and again after 12 months among those negative at baseline. Sexual behavior and socio-demographic data were collected at enrolment and exit visits using a structured questionnaire. Baseline HIV serology and Human papillomavirus (HPV) DNA genotyping were also performed. Multivariate logistic regression was used to determine independent factors associated with HSV-2 acquisition. Results: Baseline HSV-2 prevalence was 56.3% (95% CI: 50.7 - 62.0). Factors associated with HSV-2 prevalence were, older age (aOR = 1.96; 95% CI: 1.16 - 2.85), history of STI (aOR 2.12; 95% CI: 1.19 - 3.91), infection with HIV (aOR 2.22; 95% CI: 1.17 - 4.22), ever married (aOR = 3.80; 95% CI: 1.42 - 11.90), most recent sexual act with sex worker/casual partner (OR= 3.56; 95% CI: 1.49 - 8.62) and inconsistent condom use with new sexual partner (aOR = 6.34; 95% CI: 2.24 - 13.04). The HSV-2 incidence was 23.6 (95% CI = 15.4 - 31.8)/100 pyr. Infection with persistent high-risk (HR) HPV (aIRR = 3.35; 95% CI: 1.21 - 11.37), multiple (2) partners in 12 months prior to study participation (aIRR = 4.77; 95% CI: 1.12 - 11.38), inconsistent condom use with new partner (aIRR =2.53; 95% CI: 1.12 - 7.38) and most recent sexual act with sex worker/casual partner (OR = 3.03; 95% CI: 1.17 - 8.58) were independent risk factors for HSV-2 acquisition. Conclusion: The incidence of HSV-2 is very high among fishermen. It is associated with persistent HR HPV infection and high-risk sexual behavior. Intervention strategies targeting these men with high risk sexual behavior are urgently needed to stop new HSV-2 acquisition and subsequently prevent HIV infection.

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