A study of the Haor areas of Sylhet-Mymensing districts with ERTS imageries (winter crop estimation)

There are no author-identified significant results in this report

Biology of breast cancer in young women

Breast cancer arising at a young age is relatively uncommon, particularly in the developed world. Several studies have demonstrated that younger patients often experience a more aggressive disease course and have poorer outcome compared to older women. Expression of key biomarkers, including endocrine receptors, HER2 and proliferation markers, appears to be different in younger patients and young women are more likely to harbor a genetic predisposition. Despite these differences, little research to date has focused on the biology of these tumors to refine prognosis, and potentially direct treatment strategies, which remain similar to those offered to older patients. Accumulating evidence suggests the differences in breast stroma in younger patients and changes that occur with pregnancy and breastfeeding likely contribute to the different biology of these tumors. Reproductive behaviors appear to impact the biology of tumors developing later in life. In addition, tumors arising during or shortly following pregnancy appear to exhibit unique biological features. In this review, we discuss our emerging understanding of the biology of breast cancer arising at a young age at both the pathologic and the genomic level. We elucidate the potential role of genomic signatures, the impact of pregnancy and breastfeeding on breast cancer biology, and how even current knowledge might advance the clinical management of young breast cancer patients

A new species of the genus Gomphomastax Brunner von Wattenwyl (Orthoptera: Eumastacidae: Gomphomastacinae) from Indian Kashmir

A new species, Gomphomastax nigrovittata Usmani, from Kashmir is described and illustrated. In addition to conventional morphological characters, genitalic structures are also studied. A key to known species of Gomphomastax from Indian Kashmir is given

Mobile Computing in Physics Analysis - An Indicator for eScience

This paper presents the design and implementation of a Grid-enabled physics analysis environment for handheld and other resource-limited computing devices as one example of the use of mobile devices in eScience. Handheld devices offer great potential because they provide ubiquitous access to data and round-the-clock connectivity over wireless links. Our solution aims to provide users of handheld devices the capability to launch heavy computational tasks on computational and data Grids, monitor the jobs status during execution, and retrieve results after job completion. Users carry their jobs on their handheld devices in the form of executables (and associated libraries). Users can transparently view the status of their jobs and get back their outputs without having to know where they are being executed. In this way, our system is able to act as a high-throughput computing environment where devices ranging from powerful desktop machines to small handhelds can employ the power of the Grid. The results shown in this paper are readily applicable to the wider eScience community.Comment: 8 pages, 7 figures. Presented at the 3rd Int Conf on Mobile Computing & Ubiquitous Networking (ICMU06. London October 200

Scoping a public health impact assessment of aquaculture with particular reference to tilapia in the UK

Background. The paper explores shaping public health impact assessment tools for tilapia, a novel emergent aquaculture sector in the UK. This Research Council’s UK Rural Economy and Land Use project embraces technical, public health, and marketing perspectives scoping tools to assess possible impacts of the activity. Globally, aquaculture produced over 65 million tonnes of food in 2008 and will grow significantly requiring apposite global public health impact assessment tools.<p></p> Methods. Quantitative and qualitative methods incorporated data from a tridisciplinary literature. Holistic tools scoped tilapia farming impact assessments. Laboratory-based tilapia production generated data on impacts in UK and Thailand along with 11 UK focus groups involving 90 consumers, 30 interviews and site visits, 9 visits to UK tilapia growers and 2 in The Netherlands.<p></p> Results. The feasibility, challenges, strengths, and weaknesses of creating a tilapia Public Health Impact Assessment are analysed. Occupational and environmental health benefits and risks attached to tilapia production were identified.<p></p> Conclusions. Scoping public health impacts of tilapia production is possible at different levels and forms for producers, retailers, consumers, civil society and governmental bodies that may contribute to complex and interrelated public health assessments of aquaculture projects. Our assessment framework constitutes an innovatory perspective in the field

Pengaruh Penambahan Jintan Hitam (Nigella Sativa) Dan Vitamin C Dalam Ransum Terhadap Profil Lemak Ayam Broiler (the Effect of Black Cumin (Nigella Sativa) Addition and Vitamin C Suplementation in Broilerdiet on the Lipid Profile)

The aim of research was to know the effectof addition of black cumin (Nigella sativa) and vitamin C in broiler diet on the lipid profile. One hundred fifty of chickens were used in thisresearch, unsexed,8 days old,Cobb strainswith 187,15 ± 10,72 g mean weight. The treatment was divided into 5 types of rations with addition of 500 ppm vitamin C in each rations and addition of black cumin in differential levels, i.e. without black cumin (T1); 0,25% black cumin (T2);0,5% black cumin (T3); 0,75% black cumin (T4),1% black cumin (T5). The treatments were arrangedto a completely randomized design (CRD)with 5 treatments and 5 replications. The observed parameters includeweights of abdominal lipid, levels of blood cholesterol, levels of high density lipoprotein (HDL), levels of low density lipoprotein (LDL) and levels of trigliserida. The results showed the addition of black cummin and vitamin C in chicken broiler rations had no significant (P>0,05) on weights of abdominal lipid, levels of blood cholesterol, levels of high density lipoprotein, levels of low density lipoprotein and levels of trigliserida.In conclusion, addition of 1% black cumminand 500 ppm vitamin C on the ration had enough for maintenance of broiler in tropical invironment with changing weights of abdominal lipid, levels of blood cholesterol, levels of high density lipoprotein, levels of low density lipoprotein and levels of trigliserida

Secure role based access control systems using aspect-orientation designing

Security system designs are required to be flexible enough to support multiple policies. A security policy model always develops; accordingly, the design of a security system using that policy model should reflect the changes. Using role-based access control (RBAC) as an example, currently it supports role hierarchy, static separation of duty relations, and dynamic separation of duty relations. As research on RBAC progresses, more concerns have been and will be covered. So the model hierarchy of RBAC is quickly becoming more and more complicated, which requires that the security system supporting RBAC be flexible and extensible. To address this issue at the design level, we propose an aspect-oriented approach to designing flexible and extensible security systems. This paper illustrates the approach through a case study, which is part of a design for CORBA access control (AC) supporting RBAC models

Analytical reasoning task reveals limits of social learning in networks

Social learning -by observing and copying others- is a highly successful cultural mechanism for adaptation, outperforming individual information acquisition and experience. Here, we investigate social learning in the context of the uniquely human capacity for reflective, analytical reasoning. A hallmark of the human mind is our ability to engage analytical reasoning, and suppress false associative intuitions. Through a set of lab-based network experiments, we find that social learning fails to propagate this cognitive strategy. When people make false intuitive conclusions, and are exposed to the analytic output of their peers, they recognize and adopt this correct output. But they fail to engage analytical reasoning in similar subsequent tasks. Thus, humans exhibit an 'unreflective copying bias,' which limits their social learning to the output, rather than the process, of their peers' reasoning -even when doing so requires minimal effort and no technical skill. In contrast to much recent work on observation-based social learning, which emphasizes the propagation of successful behavior through copying, our findings identify a limit on the power of social networks in situations that require analytical reasoning