Geological and hydrogeological investigations in west Malaysia

The author has identified the following significant results. Large structures along the east coast of the peninsula were discovered. Of particular significance were the circular structures which were believed to be associated with mineralization and whose existence was unknown. The distribution of the younger sediments along the east coast appeared to be more widespread than previously indicated. Along the Pahang coast on the southern end, small traces of raised beach lines were noted up to six miles inland. The existence of these beach lines was unknown due to their isolation in large coastal swamps

Annealing-induced Fe oxide nanostructures on GaAs

We report the evolution of Fe oxide nanostructures on GaAs(100) upon pre- and post-growth annealing conditions. GaAs nanoscale pyramids were formed on the GaAs surface due to wet etching and thermal annealing. An 8.0-nm epitaxial Fe film was grown, oxidized, and annealed using a gradient temperature method. During the process the nanostripes were formed, and the evolution has been demonstrated using transmission and reflection high energy electron diffraction, and scanning electron microscopy. These nanostripes; exhibited uniaxial magnetic anisotropy. The formation of these nanostructures is attributed to surface anisotropy, which in addition could explain the observed uniaxial magnetic anisotropy

Corrections to Tribimaximal Mixing from Nondegenerate Phases

We propose a seesaw scenario that possible corrections to the tribimaximal pattern of lepton mixing are due to the small phase splitting of the right-handed neutrino mass matrix. we show that the small deviations can be expressed analytically in terms of two splitting parameters($\delta_1$ and $\delta_2$) in the leading order. The solar mixing angle $\theta_{12}$ favors a relatively smaller value compared to zero order value ($35.3^\circ$), and the Dirac type CP phase $\delta$ chooses a nearly maximal one. The two Majorana type CP phases $\rho$ and $\sigma$ turn out to be a nearly linear dependence. Also a normal hierarchy neutrino mass spectrum is favored due to the stability of perturbation calculations.Comment: 19 pages 6 figures, Accepted by Mod. Phy. Lett.

Neutrino Factories: Physics Potential

The physics potential of low-performance and high-performance neutrino factories is briefly reviewed..Comment: Talk presented at NUFACT02, London, 1-6 July, 2002. 8 pages, 5 figure

XPS and XMCD study of Fe3O4/GaAs interface

Ultrathin Fe oxide films of various thicknesses prepared by post-growth oxidation on GaAs(100) surface have been investigated with X-ray photoelectron spectroscopy (NPS), X-ray absorption spectroscopy (XAS), and X-ray magnetic circular dichroism (XMCD). The XPS confirms that the surfaces of the oxide are Fe3O4 rather than Fe2O3. XAS and XMCD measurements indicate the presence of nsulating Fe divalent oxide phases (FeO) beneath the surface Fe-3 O-4 layer with the sample thickness above 4 mn. This FeO might act as a barrier for the spin injection into the GaAs

Correlation of Atrial Fibrillation with Left Atrial Volume in Patients with Mitral Stenosis. a Single Centre Study From Pakistan

Background: Rheumatic heart disease has a strong association with mitral valve stenosis. Atrial fibrillation is one of the most common complications of this condition and is a poor prognostic factor. Early detection and prompt management of atrial fibrillation can help to improve the quality of life and increase the life expectancy of the patients. We carried out this study to investigate the significance of left atrial volumetric changes in mitral stenosis and its correlation with atrial fibrillation. Methodology: We audited the data of 60 patients of rheumatic heart disease who had mitral valve stenosis. The patients were randomized into atrial fibrillation (Group A) and normal sinus rhythm (Group B). We conducted this cross-sectional analytical study at Cardiology Department, Mayo Hospital, Lahore, from 1st February 2017 to 31st January 2018. We only included those patients who consented to be a part of this study and fulfilled our predefined inclusion criteria. Left atrial volume was measured by prolate ellipse method and biplane methods on echocardiography. The Data was analyzed on SPSS v20. Results: Sixty patients were included in the study. Among the subjects, thirty-six (60%) were males, and twenty-four (40%) were females. Atrial fibrillation was noted in 43.33% of the patients of mitral valve stenosis. There was a marked difference in the mean volume of the left atrium among the two groups. We observed that the mean area of the mitral valve for Group A patients was larger than that of patients in Group B. Our study showed an inverse correlation between left atrial volume and mitral valve area among Group A patients. Conclusion: Patients of mitral stenosis are at an increased risk of developing atrial fibrillation if the left atrial volume is increasing. All patients with mitral stenosis should have routine echocardiography & measurement of left atrial volumes, so that proper treatment can be started if the left atrial volume is increasing, to prevent atrial fibrillation

Hydrolysis of proteins from Liza subviridis

Proteins from Liza suboiridis, a marine fish, were hydrolyzed using Alcalase 2.5L. The parameters studied were pH, temperature, ratio of enzyme to substrate concentration, and substrate concentration. It was observed that the optimum conditions for the hydrolysis were pH 9 at 40°C, using an enzyme to substrate ratio of 16 Au/kg and a substrate concentration of 5%

Good mothers, bad mothers: motherhood, modernity and politics in representations of child abuse in Malaysia's English-language newspapers

This paper reports on an analysis of representations of child abuse in English-language newspapers in Malaysia. Certain media images of mothers recur: bad mothers who are unable to protect their children; and good mothers, who are feminine representatives of a maternalised national government which is charged with interceding on behalf of abused children. Mothers implicated in child abuse are harshly judged by the maternalist regime. Our findings resonate with previous feminist analyses of child abuse but manifest differently in a non-Western, non-Christian context. In Malaysia, motherhood plays a crucial role in nationalist political culture; women and mothers carry increasing economic, social and political burdens in the rapidly modernising state. Fathers are largely marginal or absent in media reporting of child abuse, while mothers are represented as fully responsible for the care of children, particularly when problems occur. The media's blaming of child abuse on social changes while valorising traditional families reflects a conservative, patriarchal perspective, occluding discussion of the contexts of child abuse and thus mitigating against comprehensive solutions

The 'social tsunami': Media coverage of child abuse in Malaysia's English-language newspapers in 2010

Since the early 1990s, Malaysian society has displayed a deepening concern over steady increases in reported cases of child abuse in the country. For many Malaysians, knowledge of this issue comes from the mainstream media. This research analyses media coverage of child abuse in two mainstream English-language daily newspapers throughout 2010. The analysis focuses on how this issue is presented and 'framed' in the media. Through the use of simple episodic framing and a distorted focus on extreme cases of child abuse, media coverage internationally obscures the reality of child abuse as it occurs within the context of contemporary social, cultural, religious or political systems. This hinders any genuine understanding of the problem, leading to flawed solutions. We find these international patterns largely replicated in Malaysia. Furthermore, gendered socialization processes in Malaysia make women and mothers principally responsible for family life and there is a tendency to blame and punish mothers for child abuse even when they are not the perpetrators. Internationally, child welfare experts and academics have advised the media to focus reporting on the underlying causes of abuse so that the issue can be better understood and addressed and this advice is pertinent for Malaysia today