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Search Results: 1 - 10 of 1950 matches for " Nina; "
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Urban Growth and Its Impact on Cityscape: A Geospatial Analysis of Rohtak City, India  [PDF]
Nina Singh, Jitendra Kumar
Journal of Geographic Information System (JGIS) , 2012, DOI: 10.4236/jgis.2012.41002
Abstract: Rohtak is one of the eight priority towns (Regional Centres) of National Capital Region (NCR) Regional Plan 2001. It lies 70 kms north-west from Delhi, the National Capital of India. Located at 28?41'1'' North latitude and 76?12'42'' East longitude in the NCR region of Haryana state on National Highway No. 10, it spreads over 100.57 km2. Its population was projected to grow to 500,000 by 2001. Despite its nearness to the national capital it did not attract investment and the rate of urbanization remained low. Rohtak city grew slower than the state of Haryana in the three decades ending in 2001. On being declared as Municipal Corporation in 2010 urban growth of Rohtak took place in the form of extension in territorial jurisdiction and inclusion of urbanized eight villages. The new economic environment demands sustainable land management. Spatial information of land use/land cover types and their change detection in time series are important means for city planning and undertaking development activities. The present work is undertaken in that spirit. It has analyzed the relationship between urban growth and land use changes and their impact on Rohtak city. The period of focus is from 1983 to 2010. Both primary and secondary sources of data have been used for the present study. Secondary sources of data—guide map, topographical sheet and high resolution satellite imageries have been used to detect land use/land cover changes from the study area whereas primary source of data include ground truth and photographs from the field.
Recent Active Fires under El Niño Conditions in Kalimantan, Indonesia  [PDF]
Nina Yulianti, Hiroshi Hayasaka
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.43A087

Analysis of the most recent 10-year periods (2002 to 2011) of MODIS hotspots data (fires) and precipitation in Palangkaraya and Pontianak was carried out to identify seasonal and spatial fire occurrence in Kalimantan under El Nino conditions, and to asses future forest condition in Kalimantan. Most data was tallied every 10-day to analyze seasonal and spatial fire occurrence. Seasonal and spatial analysis results for severe fire years, namely 2006 and 2009, under El Nino conditions were as follows: the severest fire incidents for whole Kalimantan occurred in October in 2006 under the driest conditions in both Palangkaraya and Pontianak. The severest fires for the Mega Rice Project (MRP) area and its vicinity occurred in late September in 2009 under the driest conditions for Palangkaraya. Fire activities in the last 10-year in south Central Kalimantan were severe than other areas in Kalimantan. This may be explained by different dry conditions of peat. Namely, the peat in the southern part of Central Kalimantan could become dryer under the relatively longer dry season (about 3-month) compared with other areas (dry season in West Kalimantan is only 2/3-month). One of spatial analysis results clearly showed a so-called a fire belt shape arising from severe fires that occurred mainly on the southern coastal peatlands from West to Central Kalimantan in mid October in 2006.

RETRACTED: Biophysics and Cancer: The Electromagnetic Fields Produced by the Mitochondria and Its Effect on the Cell’s Metabolic Regulation  [PDF]
Nina Bardi de Alvarez
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2014, DOI: 10.4236/jemaa.2014.610033

Short Retraction Notice

The paper does not meet the standards of \" Journal of Electromagnetic Analysis and Applications \".

This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused.

Please see the article page for more details. The full retraction notice in PDF is preceding the original paper which is marked \"RETRACTED\".

Toeplitz operators with BMO symbols and the Berezin transform
Nina Zorboska
International Journal of Mathematics and Mathematical Sciences , 2003, DOI: 10.1155/s0161171203212035
Abstract: We prove that the boundedness and compactness of the Toeplitz operator on the Bergman space with a BMO1 symbol is completely determined by the boundary behaviour of its Berezin transform. This result extends the known results in the cases when the symbol is either a positive L1-function or an L∞ function.
Isometric and Closed-Range Composition Operators between Bloch-Type Spaces
Nina Zorboska
International Journal of Mathematics and Mathematical Sciences , 2011, DOI: 10.1155/2011/132541
Abstract: We present an overview of the known results describing the isometric and closed-range composition operators on different types of holomorphic function spaces. We add new results and give a complete characterization of the isometric univalently induced composition operators acting between Bloch-type spaces. We also add few results on the closed-range determination of composition operators on Bloch-type spaces and present the problems that are still open. 1. Introduction A topic of interest in the paper is the description of isometric and, more generally, of closed-range composition operators on the Bloch-type spaces, in terms of the specific behaviour of the inducing function. The goal of the paper is to present an overview of the known results by emphasizing the intuitive idea and geometrical aspects of the corresponding conditions, to contribute to the classification with few new results and to list a number of open questions related to this topic. One of the earliest results on isometric composition operators, acting on spaces of functions analytic on the open unit disk, is Nordgren's result [1] from 1968: if is inner, then is an isometry on if and only if . Martín and Vukoti? have generalized recently in [2] that, indeed, is an isometry on for all if and only if is inner and . Since rotations induce isometric composition operators on most of the spaces, it is of particular interest to determine the function spaces on which these are the only kind of isometric composition operators. Such are, for example, all of the weighted Bergman spaces, as shown by Martín and Vukoti? in [2]. They have also classified the isometric composition operators on the Dirichlet space and, under the univalence condition of the inducing function, on some of the other Besov spaces (see [2, 3]). The isometric composition operators on the BMOA space have been determined by Laitila (see [4]). As for the classification of the larger class of closed-range composition operators on spaces of functions analytic on the unit disk, the known results include some of the weighted Bergman spaces (see [5, 6]), and some of the Bloch-type spaces, which we will state and refer to in the next few sections. In most of the cases, the general rule is that a composition operator is either isometric or has a closed range, whenever the image of the unit disc under the inducing function covers a significant (in some sense) part of . As we will see below, that stays true in the case of the Bloch-type spaces, with a specific description of what the “significant part” means in this context. Note that
Endoscopic Right Lobectomy Axillary-Breast Approach: A Report of Two Cases
Nina Irawati
International Journal of Otolaryngology , 2010, DOI: 10.1155/2010/958764
Abstract: Background. We reported our two initial experiences in the treatment of thyroid disease with endoscopic thyroidectomy. Minimally invasive video-assisted technique (MIVAT) was initially introduced by Miccoli. The modification was made by using axillary and breast technique. Method. Two young women patients, with 4 and 5 cm right lobe thyroid disease suspected to be benign. From physical examination, sonography, and FNAB findings, the two cases were categorized as benign. We performed endoscopic right lobectomy through incision of 5–10 mm on axillary line and breast using CO2 insufflation. Result. Duration of first operation was 300 minutes and the second one was 120 minutes, with minimal blood loss and no major complication. Patients were discharged 24 hours after operation. Cosmetic result was excellent. Postoperative complications were shoulder discomfort and neck swelling. Conclusion. We reported two cases of endoscopic right lobectomy as a safe, reproducible technique with an indication in a minority of patients candidates for thyroidectomy and is characterized by less postoperative discomfort.
Recent Applications of Polymer Supported Organometallic Catalysts in Organic Synthesis
Nina Kann
Molecules , 2010, DOI: 10.3390/molecules15096306
Abstract: Recent developments concerning the application of polymer supported organometallic reagents in solid phase synthesis are reviewed, with a special focus on methodology for carbon-carbon formation. Examples of reactions that are covered include the classical Suzuki, Sonogashira and Heck coupings, but also aryl amination, epoxide opening, rearrangements, metathesis and cyclopropanation. Applications in the field of asymmetric synthesis are also discussed.
The surprising negative correlation of gene length and optimal codon use - disentangling translational selection from GC-biased gene conversion in yeast
Nina Stoletzki
BMC Evolutionary Biology , 2011, DOI: 10.1186/1471-2148-11-93
Abstract: Yeast is a good organism to study this as equal numbers of optimal codons end in -GC and -AT and one may hence compare frequencies of optimal GC- with optimal AT-ending codons to disentangle the forces. Results of this study demonstrate in yeast frequencies of GC-ending (optimal AND non-optimal) codons decrease with gene length and increase with recombination. A decrease of GC-ending codons along genes contributes to the negative correlation with gene length. Correlations with recombination and gene expression differentiate between GC-ending and optimal codons, and also substitution patterns support effects of GC-biased gene conversion.While the general effect of GC-biased gene conversion is well known, the negative correlation of optimal codon use with gene length has not been considered in this context before. Initiation of gene conversion events in promoter regions and the presence of a gene conversion gradient most likely explain the observed decrease of GC-ending codons with gene length and gene position.Translational selection on synonymous codon use is indicated if frequencies of preferentially used, 'optimal', codons increase with expression level and correspond to the most abundant tRNA or to the tRNA with which they form the strongest binding - for several organisms, this seems to be the case (see for reviews [1-4]). Additional support for a beneficial role of certain 'optimal' codons in translation comes from laboratory studies [5-8]. Translational selection may act to maximise the speed of elongation, minimize the costs of proofreading or maximise the accuracy of translation [1], and depending on the selective target, one can test further distinct predictions. Under selection for translational accuracy we expect for example: (i) selection against translational errors to relate to the error's costs. As costs of an erroneous protein should accrue with each added amino acid during protein synthesis, one may expect long genes to experience higher optimal cod
Conflicting selection pressures on synonymous codon use in yeast suggest selection on mRNA secondary structures
Nina Stoletzki
BMC Evolutionary Biology , 2008, DOI: 10.1186/1471-2148-8-224
Abstract: In contrast to several studies testing for unexpected structural stabilities, I directly compare the selective constraint of sites that differ in their structural importance. I.e. for each nucleotide, I identify whether it is paired with another nucleotide, or unpaired, in the predicted secondary structure. I assume paired sites are more important for the predicted secondary structure than unpaired sites. I look at protein coding yeast sequences and use optimal codons and synonymous substitutions to test for structural constraints. As expected under selection for secondary structures, paired sites experience higher constraint than unpaired sites, i.e. significantly lower numbers of conserved optimal codons and consistently lower numbers of synonymous substitutions. This is true for structures predicted by different algorithms.The results of this study are consistent with purifying selection on mRNA secondary structures in yeast protein coding sequences and suggest their biological importance. One should be aware, however, that accuracy of structure prediction is unknown for mRNAs and interrelated selective forces may contribute as well. Note that if selection pressures alternative to translational selection affect synonymous (and optimal) codon use, this may lead to under- or over-estimates of selective strength on optimal codon use depending on strength and direction of translational selection.Messenger RNA (mRNA) sequences encode the amino acid sequence of the protein but may also bear additional information. For example, certain synonymous codons may improve translation [1-3] and a variety of motifs may regulate expression at the level of translation, cellular localization, decay or splicing [4-9]. Many of these motifs are secondary structures, and eukaryotic mRNAs contain regulatory structures in their 5' and 3' UTRs [10-15], or introns [16,17]. However, it remains unclear whether secondary structures in the coding regions are of functional importance. Laborator
Las voces de la organización
Signo y Pensamiento , 2008,
Abstract: the text combines issues related with contemporary trends in internal communication, technologies for orality, and their influence on the varying forms of subjective agency found in organizational contexts. the article poses a question about the conception of an organization as a compound of energies, actions and alternatives of social transformation; it also puts forward an argument in favour of a political conception of organizational communication, since it involves practices that have an impact on subjective agency at both micro and macro cultural levels.
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