Mobile Broadband Possibilities considering the Arrival of IEEE 802.16m & LTE with an Emphasis on South Asia

This paper intends to look deeper into finding an ideal mobile broadband solution. Special stress has been put in the South Asian region through some comparative analysis. Proving their competency in numerous aspects, WiMAX and LTE already have already made a strong position in telecommunication industry. Both WiMAX and LTE are 4G technologies designed to move data rather than voice having IP networks based on OFDM technology. So, they aren't like typical technological rivals as of GSM and CDMA. But still a gesture of hostility seems to outburst long before the stable commercial launch of LTE. In this paper various aspects of WiMAX and LTE for deployment have been analyzed. Again, we tried to make every possible consideration with respect to south Asia i.e. how mass people of this region may be benefited. As a result, it might be regarded as a good source in case of making major BWA deployment decisions in this region. Besides these, it also opens the path for further research and in depth thinking in this issue.Comment: IEEE Publication format, ISSN 1947 5500, http://sites.google.com/site/ijcsis

Gram-positive pathogenic bacteria induce a common early response in human monocytes

<p>Abstract</p> <p>Background</p> <p>We infected freshly isolated human peripheral monocytes with live bacteria of three clinically important gram-positive bacterial species, <it>Staphylococcus aureus</it>, <it>Streptococcus pneumoniae </it>and <it>Listeria monocytogenes </it>and studied the ensuing early transcriptional response using expression microarrays. Thus the observed response was unbiased by signals originating from other helper and effector cells of the host and was not limited to induction by solitary bacterial constituents.</p> <p>Results</p> <p>Activation of monocytes was demonstrated by the upregulation of chemokine rather than interleukin genes except for the prominent expression of interleukin 23, marking it as the early lead cytokine. This activation was accompanied by cytoskeleton rearrangement signals and a general anti-oxidative stress and anti-apoptotic reaction. Remarkably, the expression profiles also provide evidence that monocytes participate in the regulation of angiogenesis and endothelial function in response to these pathogens.</p> <p>Conclusion</p> <p>Regardless of the invasion properties and survival mechanisms of the pathogens used, we found that the early response comprised of a consistent and common response. The common response was hallmarked by the upregulation of interleukin 23, a rather unexpected finding regarding <it>Listeria </it>infection, as this cytokine has been linked primarily to the control of extracellular bacterial dissemination.</p

Structural Controls of Polymetal Mineralization in North Kashmar, Iran

Abs tract: The North part of Kashmar is located about 250 Km Southwest of M ashhad, Northeast Iran. It is part of the structural Darouneh fault zone and contains rhyolitic, andesitic, pyroclas t ic a n d lava flows . Based on results obtained fro m A F M and Miyashiro diagrams the igneous rocks class ified as a s ubalkaline and calcalkaline. From the data obtained the Ka s h mar strike-slip fault geometry (dis tribution of s hear fractures s uc h a s R,Ró ,P s urfaces , Riedel structures ) plays an important role in controlling the location and emplacement of polymetal mineralization of cop per, lead and zinc ore depos its . The Rie del structure which was obs erved along the northern border of Darouneh fault in d ic a t es a top-west sense of motion. Similar s tructures were obs erved along the southern border o f T a n o u rcheh fault as well. In alterated regions along R, Ró and P surfaces , intrus ion of plutonic roc ks into volcanic rocks have caus ed the develop me n t o f p ropylytic, argillic and s ilis ic hydrothermal alteration, hos ting copper, gold, lead and zinc ore depos its . To s how that the obs erved s hear fracture s urfaces are indeed not significantly different from class ical Riedel s hear pattern a fractal analys is has been done to compare field obs ervations and class ical Riedel s hear pattern. The result shows that the estimated fractal dimens ion for s chematic Riedel is about 1.17, which is in agreement with fra c tal dimens ion of field measurement

In quest of the better mobile broadband solution for South Asia taking WiMAX and LTE into consideration

Internet generation is growing accustomed to having broadband access wherever they go and not just at home or in the office, which turns mobile broadband into a reality. This paper aims to look for a suitable mobile broadband solution in the South Asian region through comparative analysis in various perspectives. Both WiMAX and LTE are 4G technologies designed to move data rather than voice having IP networks based on OFDM technology. Proving competency in various significant aspects WiMAX and LTE already have made a strong position in telecommunication industry. Again, because of certain similarities in technology; they aren’t like technological rivals as of GSM and CDMA. But still they are treated as opponents and viewed as a major threat in case of the flourishing of each other. Such view point is surely not conducive for getting the best out of them. In this paper various aspects and applications of WiMAX and LTE for deployment have been analyzed. South Asia being the residence of an enormous number of people presents an exciting opportunity for mobile operators, developers and internet service providers. So, every consideration that has been made here also correlates successfully with south Asia i.e. how mass people of this region may be benefited from it. As a result, it might be regarded as a good source in case of making major BWA deployment decisions in this region. Besides these, it also opens the path for further research and thinking in this issue

Growth, photosynthesis, chlorophyll content and nutrient partitioning of kenaf as influenced by different levels of carbon

The effects of carbon (C) levels on growth, photosynthesis, chlorophyll content, and nutrient partitioning on five kenaf varieties were investigated. Kenaf plants were grown in pots containing sandy beach ridges interspersed with swales (BRIS) soil. Organic carbon at levels of 0, 10, 20, 30, and 40 t ha−1, were applied to the pots. The results showed that plant height, stem diameter, leaf number, leaf area, chlorophyll content and photosynthesis rate increased with an increase in carbon levels up to 20 t ha−1but decreased with additional increase in carbon levels. The proportion of nitrogen in leaves was minimum at 0 and maximum at 20 t ha−1carbon levels. In stem and roots, proportion of nitrogen (N) decreased after 10 t ha−1carbon, while in leaves phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg) increased after 20 t ha−1. Variety HC2 showed maximum N, P, and K in leaves and total nutrient content

Analysing perceptions of English in rural Bangladesh

Drawing on research analysing perceptions of English in rural Bangladesh, the paper explores the ideological and practical issues involved in the promotion of English in this context, with respect to the language's former and current associations with colonial and imperialist agendas, and the politico-cultural situation of present-day Bangladeshi society. The analysis – which is underpinned by a blending of world Englishes and postcolonial theory – reveals how dominant discourses of English as a language of global opportunity persist in these rural communities, despite the limited opportunities for using the language or developing proficiency in it. By representing these ‘subaltern’ views on English in what is an under-researched context, the paper offers critical insights into the impact of English-language education on rural Bangladeshis’ social prospects, communities and cultural identities