Ab initio studies of electronic structure of defects in PbTe

Understanding the detailed electronic structure of deep defect states in narrow band-gap semiconductors has been a challenging problem. Recently, self-consistent ab initio calculations within density functional theory (DFT) using supercell models have been successful in tackling this problem. In this paper, we carry out such calculations in PbTe, a well-known narrow band-gap semiconductor, for a large class of defects: cationic and anionic substitutional impurities of different valence, and cationic and anionic vacancies. For the cationic defects, we study a series of compounds RPb2n-1Te2n, where R is vacancy or monovalent, divalent, or trivalent atom; for the anionic defects, we study compounds MPb2nTe2n-1, where M is vacancy, S, Se or I. We find that the density of states (DOS) near the top of the valence band and the bottom of the conduction band get significantly modified for most of these defects. This suggests that the transport properties of PbTe in the presence of impurities can not be interpreted by simple carrier doping concepts, confirming such ideas developed from qualitative and semi-quantitative arguments

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

Comparative Analysis of V-Akt Murine Thymoma Viral Oncogene Homolog 3 (AKT3) Gene between Cow and Buffalo Reveals Substantial Differences for Mastitis

AKT3 gene is a constituent of the serine/threonine protein kinase family and plays a crucial role in synthesis of milk fats and cholesterol by regulating activity of the sterol regulatory element binding protein (SREBP). AKT3 is highly conserved in mammals and its expression levels during the lactation periods of cattle are markedly increased. AKT3 is highly expressed in the intestine followed by mammary gland and it is also expressed in immune cells. It is involved in the TLR pathways as effectively as proinflammatory cytokines. The aims of this study were to investigate the sequences differences between buffalo and cow. Our results showed that there were substantial differences between buffalo and cow in some exons and noteworthy differences of the gene size in different regions. We also identified the important consensus sequence motifs, variation in 2000 upstream of ATG, substantial difference in the “3′UTR” region, and miRNA association in the buffalo sequences compared with the cow. In addition, genetic analyses, such as gene structure, phylogenetic tree, position of different motifs, and functional domains, were performed to establish their correlation with other species. This may indicate that a buffalo breed has potential resistance to disease, environment changes, and airborne microorganisms and some good production and reproductive traits

Injection tests and effect on microstructure and properties of aluminium 7075 direct thermal method feedstock billets

The success of semi-solid metal forming is dependent on a globular solid grain formation within a liquid phase. This paper presents experimental works concerning semi-solid metal processing of aluminium 7075 feedstock billets which were produced by direct thermal method. The flowability of feedstock billets was evaluated by an injection test processing unit. The feedstock billets were heated to a temperature of 620 °C by using a box furnace before transferred into a forming die. The formed feedstock billet was removed from the forming die after it was cooled to ambient temperature. Several analyses were conducted on the formed feedstock billets including dimensional measurement and microstructure analysis. The results show that the feedstock billets which contained the highest amount of free secondary phase were most successfully formed. Microstructure analysis results also revealed the formation of more globular and larger α–Al solid grains in the same feedstock billets. In this experimental work, the feedstock billets with higher amount of secondary (liquid) phase had a significant effect on formability. It is concluded that in order to achieve successful formability of the direct thermal method feedstock billets, the billets need to a have higher secondary phase content. Thus, important preparation methods of feedstock billets were characterised in order to allow for SSM processing

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

SOLID WASTE MANAGEMENT IN BHANPUR BHOPAL: STATUS AND NEED- A CASE STUDY

Solid waste management is perhaps the most important service required by urban dwellers to maintain their quality of life.         Huge      amount of solid waste is generated in India, in Urban, municipal and                industrial sectors which are finally disposed to the solid waste          disposal               sites.Bhopal is not an exception. The Bhopal city has 75 acres of land for waste disposal. The waste generated in the city is deposited at this landfill site which is 4uated in Bhanpura village at a distance of 16 km from the city. No scientific method of waste disposal is adopted. All waste     is disposed off at the landfill. This present system of disposal by open dumping of waste creates a lot of environmental problems and                public    health hazards. Madhya Pradesh state Agro Industries Development Corporation limited has set up an Organic manure plant based on solid waste which produces organic manure from the solid waste which is    being sold to the farmers of M.P.   The organic mantic is made in this plant through Bio-augmentation      process. The non- biodegradable war left after the segregation from               the plant is used for land filling. KEY WORDS- Solid waste, organic manure, bio-augmentation         process,                land Hag. Segregation

Monte Carlo simulation of an experiment looking for radiative solar neutrino decays

We analyse the possibility of detecting visible photons from a hypothetical radiative decay of solar neutrinos. Our study is focused on the simulation of such measurements during total solar eclipses and it is based on the BP2000 Standard Solar Model and on the most recent experimental information concerning the neutrino properties.Comment: 13 pages, 10 figures, accepted by Astropart. Phy

Innovation in Utilizing Information Technology Systems in Improving the Quality of Nursing Services

Background: Advances in technology in the field of health are increasingly increasing, enabling everyone to use existing technology. Today, advances in information technology that allow for the development of professional nursing services, and the attention of current epidemiology and sociodemography, are very important for nurses. to become familiar with health information systems Methods: The conceptual framework proposed was to look at the theory and empirical literature used in nursing studies and its benefits, which were reviewed from several research results from 2013 to 2018. This study used 17 journals that were reviewed against it. Results: Several innovations in the field of information technology in the field of nursing have been developed and evaluated for its benefits. Based on what is in the literature in this article, Nurse Calling Systems (NCSS), EHR and CDSS, MDTT, computers and infusion management systems are a number of innovations that have been developed for developing technology to provide better quality services. The benefits obtained when using these innovations, namely more efficient management, more effective use of costs, improved planning programs, increased utilization of nurses. The benefits of information systems in nursing more time with, patients and less time in station nurses, reducing the use of paper nursing care automatically the same standard in care (nursing process) reduce the cost of nursing services can be measured Conclusion: it takes several innovations in the field of nursing that have been widely applied, which are carried out on benefits that provide enormous benefits in the practice of nursing services. So it is recommended that in the future Indonesia can implement innovations that can help improve nurse performance in Indonesia according to existing needs Keywords: Innovation, Nursing Information System, Benefit

Sesame seed sensitization in a group of atopic Egyptian children

Background: There are no published data on the prevalence of sesame allergy/sensitization in Egypt. Objective: In this pilot study, we thought to estimate the frequency of sesame seed sensitization in a group of atopic Egyptian infants and children. Methods: We consecutively enrolled 90 patients with physician diagnosed allergic disease. The study measurements included clinical evaluation for the site and duration of allergy, history suggestive of sesame seed allergy, and family history of allergy, as well as skin prick testing (SPT) using a commercial sesame extract, and serum sesame specific IgE (SpIgE) estimation. Results: None of the studied patients reported symptoms suggestive of sesame seed allergy. Nevertheless, two children (2.2%) showed positive SPT response to sesame (wheal diameter ≥ 3 mm above the negative control). Only one of them had a wheal diameter which exceeded that of the histamine control. The serum sesame SpIgE exceeded 0.35 IU/ml in all subjects [range = 0.35 - 3.0 IU/ml; median (IQR) = 0.9 (0.6) IU/ml]. Serum sesame SpIgE was significantly increased in patients with history of recurrent urticaria (p=0.03). Conclusion: Sesame seed sensitization is not uncommon in atopic Egyptian children. It can be associated with any clinical form of allergy and the causal relationship needs meticulous evaluation. Wider scale population-based studies are needed to assess the prevalence of sesame allergy and its clinical correlates in our country.Keywords: Food allergy, sesame, atopic children