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1

Biological activities and medicinal properties of Cajanus cajan (L) Millsp.  

PubMed

Cajanus cajan (L) Millsp. (Sanskrit: Adhaki, Hindi: Arhar, English: Pigeon pea, Bengali: Tur) (family: Fabaceae) is the most important grain legume crop of rain-fed agriculture in semi-arid tropics. It is both a food crop and a cover/forage crop with high levels of proteins and important amino acids like methionine, lysine and tryptophan. During the last few decades extensive studies have been carried out regarding the chemistry of C. cajan and considerable progress has been achieved regarding its biological activities and medicinal applications. This review article gives an overview on the biological activities of the compounds isolated, pharmacological actions and clinical studies of C. cajan extracts apart from its general details. PMID:22247887

Pal, Dilipkumar; Mishra, Pragya; Sachan, Neetu; Ghosh, Ashoke K

2011-10-01

2

Antisickling activity of hydroxybenzoic acids in Cajanus cajan.  

PubMed

The amounts of phenylalanine and hydroxybenzoic acid in a Cajanus cajan methanolic extract were estimated. Results showed that the amount of phenylalanine and hydroxybenzoic acid per gram weight of bean was 4.92 mg +/- 0.13 mg and 21.0 mg +/- 3.0 micrograms, respectively. Sickling inhibition was observed to be efficient with the extract which contains a mixture of phenylalanine (0.69 mg/ml) and p-hydroxybenzoic acid (10.5 micrograms/ml), equivalent to those found in bean extract. The additive antisickling effect of both compounds can be therapeutically exploited for the treatment of sickle cell anemia. PMID:1438591

Akojie, F O; Fung, L W

1992-08-01

3

Genetic Patterns of Domestication in Pigeonpea (Cajanus cajan (L.) Millsp.) and Wild Cajanus Relatives  

PubMed Central

Pigeonpea (Cajanus cajan) is an annual or short-lived perennial food legume of acute regional importance, providing significant protein to the human diet in less developed regions of Asia and Africa. Due to its narrow genetic base, pigeonpea improvement is increasingly reliant on introgression of valuable traits from wild forms, a practice that would benefit from knowledge of its domestication history and relationships to wild species. Here we use 752 single nucleotide polymorphisms (SNPs) derived from 670 low copy orthologous genes to clarify the evolutionary history of pigeonpea (79 accessions) and its wild relatives (31 accessions). We identified three well-supported lineages that are geographically clustered and congruent with previous nuclear and plastid sequence-based phylogenies. Among all species analyzed Cajanus cajanifolius is the most probable progenitor of cultivated pigeonpea. Multiple lines of evidence suggest recent gene flow between cultivated and non-cultivated forms, as well as historical gene flow between diverged but sympatric species. Evidence supports that primary domestication occurred in India, with a second and more recent nested population bottleneck focused in tropical regions that is the likely consequence of pigeonpea breeding. We find abundant allelic variation and genetic diversity among the wild relatives, with the exception of wild species from Australia for which we report a third bottleneck unrelated to domestication within India. Domesticated C. cajan possess 75% less allelic diversity than the progenitor clade of wild Indian species, indicating a severe “domestication bottleneck” during pigeonpea domestication. PMID:22745789

Kassa, Mulualem T.; Penmetsa, R. Varma; Carrasquilla-Garcia, Noelia; Sarma, Birinchi K.; Datta, Subhojit; Upadhyaya, Hari D.; Varshney, Rajeev K.; von Wettberg, Eric J. B.; Cook, Douglas R.

2012-01-01

4

Antioxidant Activities of Extracts and Main Components of Pigeonpea [Cajanus cajan (L.) Millsp.] Leaves  

Microsoft Academic Search

Antioxidant activities of the aqueous and ethanol extracts of pigeonpea (Cajanus cajan (L.) Millsp.) leaves, as well as petroleum ether, ethyl acetate, n-butanol and water fractions and the four main compounds separated from the ethanol extract, i.e. cajaninstilbene acid (3-hydroxy-4-prenylmethoxystilbene-2-carboxylic acid), pinostrobin, vitexin and orientin, were examined by a DPPH radical-scavenging assay and a ?-carotene-linoleic acid test. In the DPPH

Nan Wu; Kuang Fu; Yu-Jie Fu; Yuan-Gang Zu; Fang-Rong Chang; Yung-Husan Chen; Xiao-Lei Liu; Yu Kong; Wei Liu; Cheng-Bo Gu

2009-01-01

5

HCH, endosulfan, and fluvalinate residue behavior in pigeonpea (Cajanus cajan L. Millsp)  

SciTech Connect

Pigeonpea (Cajanus cajan L. Millsp) is one of the major pulse crop of India. The loss of pigeonpea crop due to pod and foliage pests is significant, the major pests being pod fly, hairy caterpillar, aphids, white fly, plume moth borer, leaf caterpillar and jassids. It is imperative to save every grain by chemical control methods but these toxicants should not leave unusually high residues on the edible parts. In this paper the authors report the residue behavior of three different insecticides namely, hexachlorocyclohexane, endosulfan and fluvalinate on this crop.

Mukherjee, I.; Gopal, M.; Yaduraju, N.T. (Indian Agricultural Research Inst., New Delhi (India))

1992-01-01

6

Structural and functional studies on urease from pigeon pea (Cajanus cajan).  

PubMed

Urease is an enzyme that catalyzes the hydrolysis of urea, forming ammonia and carbon dioxide, and is found in plants, microorganisms and invertebrates. Although plant and bacterial ureases are closely related at amino acid and at the structural level, the insecticidal activity is seen only in the plant ureases. In contrast, both plant and bacterial ureases exhibit antifungal activity. These two biological properties are independent of its ureolytic activity. However, till date the mechanism(s) behind the insecticidal and fungicidal activity of ureases are not clearly understood. Here we report the crystal structure of pigeon pea urease (PPU, Cajanus cajan) which is the second structure from the plant source. We have deduced the amino acid sequence of PPU and also report here studies on its stability, insecticidal and antifungal activity. PPU exhibits cellulase activity. Based on the structural analysis of PPU and docking studies with cellopentoase we propose a possible mechanism of antifungal activity of urease. PMID:23624166

Balasubramanian, Anuradha; Durairajpandian, Vishnuprabu; Elumalai, Sagadevan; Mathivanan, Narayanasamy; Munirajan, Arasambattu Kannan; Ponnuraj, Karthe

2013-07-01

7

Progress of tissue culture and genetic transformation research in pigeon pea [Cajanus cajan (L.) Millsp.].  

PubMed

Pigeon pea [Cajanus cajan (L.) Millsp.] (Family: Fabaceae) is an important legume crop cultivated across 50 countries in Asia, Africa, and the Americas; and ranks fifth in area among pulses after soybean, common bean, peanut, and chickpea. It is consumed as a major source of protein (21%) to the human population in many developing countries. In India, it is the second important food legume contributing to 80% of the global production. Several biotic and abiotic stresses are posing a big threat to its production and productivity. Attempts to address these problems through conventional breeding methods have met with partial success. This paper reviews the chronological progress made in tissue culture through organogenesis and somatic embryogenesis, including the influence of factors such as genotypes, explant sources, and culture media including the supplementation of plant growth regulators. Comprehensive lists of morphogenetic pathways involved in in vitro regeneration through organogenesis and somatic embryogenesis using different explant tissues of diverse pigeon pea genotypes are presented. Similarly, the establishment of protocols for the production of transgenics via particle bombardment and Agrobacterium-mediated transformation using different explant tissues, Agrobacterium strains, Ti plasmids, and plant selectable markers, as well as their interactions on transformation efficiency have been discussed. Future research thrusts on the use of different promoters and stacking of genes for various biotic and abiotic stresses in pigeon pea are suggested. PMID:20652570

Krishna, Gaurav; Reddy, P Sairam; Ramteke, P W; Bhattacharya, P S

2010-10-01

8

Identification and Validation of Expressed Sequence Tags from Pigeonpea (Cajanus cajan L.) Root  

PubMed Central

Pigeonpea (Cajanus cajan (L) Millsp.) is an important food legume crop of rain fed agriculture in the arid and semiarid tropics of the world. It has deep and extensive root system which serves a number of important physiological and metabolic functions in plant development and growth. In order to identify genes associated with pigeonpea root, ESTs were generated from the root tissues of pigeonpea (GRG-295 genotype) by normalized cDNA library. A total of 105 high quality ESTs were generated by sequencing of 250 random clones which resulted in 72 unigenes comprising 25 contigs and 47 singlets. The ESTs were assigned to 9 functional categories on the basis of their putative function. In order to validate the possible expression of transcripts, four genes, namely, S-adenosylmethionine synthetase, phosphoglycerate kinase, serine carboxypeptidase, and methionine aminopeptidase, were further analyzed by reverse transcriptase PCR. The possible role of the identified transcripts and their functions associated with root will also be a valuable resource for the functional genomics study in legume crop. PMID:24895494

Kumar, Ravi Ranjan; Yadav, Shailesh; Joshi, Shourabh; Bhandare, Prithviraj P.; Patil, Vinod Kumar; Kulkarni, Pramod B.; Sonkawade, Swati; Naik, G. R.

2014-01-01

9

Increased effectiveness of competitive rhizobium strains upon inoculation of Cajanus cajan  

SciTech Connect

A field study was conducted in lysimeters containing /sup 15/N-enriched soil to determine the effects of four competitive rhizobium strains upon yield parameters of pigeon peas (Cajanus cajan). The greatest differences observed were in seed yields; strain P132 effected the highest seed yield (121 +/- 20 g per plant), and the control strain (indigenous rhizobia) effected the lowest yield (43.9 +/- 8 g per plant). With the exception of seeds and pods, the dry matter weights were not different. Although there appeared to be no effect by inoculum strains on the fractional content of N derived from biological nitrogen fixation when the total plant biomass was considered, strains P132 and 401 partitioned more of the N derived from fixation into seeds and leaves than did the other strains. Because the seeds comprised the major portion of plant N, more total N and more N derived from biological nitrogen fixation (about half of total N) were found in plants inoculated with P132, whereas the smallest amount was found in the uninoculated controls. P132 was also the best competitor with respect to indigenous rhizobia and accounted for all of the nodules found on the plants in which it was inoculated.

Hernandez, B.S.; Poth, M.; Focht, D.D.

1987-09-01

10

Identification and Validation of Expressed Sequence Tags from Pigeonpea (Cajanus cajan L.) Root.  

PubMed

Pigeonpea (Cajanus cajan (L) Millsp.) is an important food legume crop of rain fed agriculture in the arid and semiarid tropics of the world. It has deep and extensive root system which serves a number of important physiological and metabolic functions in plant development and growth. In order to identify genes associated with pigeonpea root, ESTs were generated from the root tissues of pigeonpea (GRG-295 genotype) by normalized cDNA library. A total of 105 high quality ESTs were generated by sequencing of 250 random clones which resulted in 72 unigenes comprising 25 contigs and 47 singlets. The ESTs were assigned to 9 functional categories on the basis of their putative function. In order to validate the possible expression of transcripts, four genes, namely, S-adenosylmethionine synthetase, phosphoglycerate kinase, serine carboxypeptidase, and methionine aminopeptidase, were further analyzed by reverse transcriptase PCR. The possible role of the identified transcripts and their functions associated with root will also be a valuable resource for the functional genomics study in legume crop. PMID:24895494

Kumar, Ravi Ranjan; Yadav, Shailesh; Joshi, Shourabh; Bhandare, Prithviraj P; Patil, Vinod Kumar; Kulkarni, Pramod B; Sonkawade, Swati; Naik, G R

2014-01-01

11

Application of fly ash on the growth performance and translocation of toxic heavy metals within Cajanus cajan L.: Implication for safe utilization of fly ash for agricultural production  

Microsoft Academic Search

The present study was undertaken to examine the influence of the application of fly ash (FA) into garden soil for Cajanus cajan L. cultivation and on accumulation and translocation of hazardous metals from FA to edible part. Numerous studies have been reported on the growth and yield of agricultural crops under FA stress; however, there is a dearth of studies

Vimal Chandra Pandey; P. C. Abhilash; Raj Narayan Upadhyay; D. D. Tewari

2009-01-01

12

Development of a novel gene transfer system for Cajanus cajan and expression of a monocot arginine decarboxylase cDNA in transformed cell lines  

Microsoft Academic Search

We describe the development of a novel transformation system for pigeonpea (Cajanus cajan (L.) Millsp.) cell lines using particle bombardment. The aim of our study was not only to develop a transformation system for this important but recalcitrant species but to do so using a gene of interest and to study the behaviour of this transgene in a legume background.

Elumalai Sivamani; Ludovic Bassie; Paul Christou; Teresa Capell

2001-01-01

13

Effectiveness of native and exotic arbuscular mycorrhizal fungi on nutrient uptake and ion homeostasis in salt-stressed Cajanus cajan L. (Millsp.) genotypes.  

PubMed

Soil salinity is an increasing problem worldwide, restricting plant growth and production. Research findings show that arbuscular mycorrhizal (AM) fungi have the potential to reduce negative effects of salinity. However, plant growth responses to AM fungi vary as a result of genetic variation in mycorrhizal colonization and plant growth responsiveness. Thus, profitable use of AM requires selection of a suitable combination of host plant and fungal partner. A greenhouse experiment was conducted to compare effectiveness of a native AM fungal inoculum sourced from saline soil and two single exotic isolates, Funneliformis mossseae and Rhizophagus irregularis (single or dual mix), on Cajanus cajan (L.) Millsp. genotypes (Paras and Pusa 2002) under salt stress (0-100 mM NaCl). While salinity reduced plant biomass and disturbed ionic status in both genotypes, Pusa 2002 was more salt tolerant and ensured higher AM fungal colonization, plant biomass and nutrient content with favourable ion status under salinity. Although all AM fungi reduced negative effects of salt stress, R. irregularis (alone or in combination with F. mosseae) displayed highest efficiency under salinity, resulting in highest biomass, yield, nutrient uptake and improved membrane stability with favourable K(+)/Na(+) and Ca(2+)/Na(+) ratios in the host plant. Higher effectiveness of R. irregularis correlated with higher root colonization, indicating that the symbiosis formed by R. irregularis had more stable viability and efficiency under salt stress. These findings enhance understanding of the functional diversity of AM fungi in ameliorating plant salt stress tolerance and suggest the potential use of R. irregularis for increasing Cajanus cajan productivity in saline soils. PMID:25155616

Garg, Neera; Pandey, Rekha

2015-04-01

14

Pigeonpea genomics initiative (PGI): an international effort to improve crop productivity of pigeonpea (Cajanus cajan L.)  

PubMed Central

Pigeonpea (Cajanus cajan), an important food legume crop in the semi-arid regions of the world and the second most important pulse crop in India, has an average crop productivity of 780 kg/ha. The relatively low crop yields may be attributed to non-availability of improved cultivars, poor crop husbandry and exposure to a number of biotic and abiotic stresses in pigeonpea growing regions. Narrow genetic diversity in cultivated germplasm has further hampered the effective utilization of conventional breeding as well as development and utilization of genomic tools, resulting in pigeonpea being often referred to as an ‘orphan crop legume’. To enable genomics-assisted breeding in this crop, the pigeonpea genomics initiative (PGI) was initiated in late 2006 with funding from Indian Council of Agricultural Research under the umbrella of Indo-US agricultural knowledge initiative, which was further expanded with financial support from the US National Science Foundation’s Plant Genome Research Program and the Generation Challenge Program. As a result of the PGI, the last 3 years have witnessed significant progress in development of both genetic as well as genomic resources in this crop through effective collaborations and coordination of genomics activities across several institutes and countries. For instance, 25 mapping populations segregating for a number of biotic and abiotic stresses have been developed or are under development. An 11X-genome coverage bacterial artificial chromosome (BAC) library comprising of 69,120 clones have been developed of which 50,000 clones were end sequenced to generate 87,590 BAC-end sequences (BESs). About 10,000 expressed sequence tags (ESTs) from Sanger sequencing and ca. 2 million short ESTs by 454/FLX sequencing have been generated. A variety of molecular markers have been developed from BESs, microsatellite or simple sequence repeat (SSR)-enriched libraries and mining of ESTs and genomic amplicon sequencing. Of about 21,000 SSRs identified, 6,698 SSRs are under analysis along with 670 orthologous genes using a GoldenGate SNP (single nucleotide polymorphism) genotyping platform, with large scale SNP discovery using Solexa, a next generation sequencing technology, is in progress. Similarly a diversity array technology array comprising of ca. 15,000 features has been developed. In addition, >600 unique nucleotide binding site (NBS) domain containing members of the NBS-leucine rich repeat disease resistance homologs were cloned in pigeonpea; 960 BACs containing these sequences were identified by filter hybridization, BES physical maps developed using high information content fingerprinting. To enrich the genomic resources further, sequenced soybean genome is being analyzed to establish the anchor points between pigeonpea and soybean genomes. In addition, Solexa sequencing is being used to explore the feasibility of generating whole genome sequence. In summary, the collaborative efforts of several research groups under the umbrella of PGI are making significant progress in improving molecular tools in pigeonpea and should significantly benefit pigeonpea genetics and breeding. As these efforts come to fruition, and expanded (depending on funding), pigeonpea would move from an ‘orphan legume crop’ to one where genomics-assisted breeding approaches for a sustainable crop improvement are routine. PMID:20976284

Penmetsa, R. V.; Dutta, S.; Kulwal, P. L.; Saxena, R. K.; Datta, S.; Sharma, T. R.; Rosen, B.; Carrasquilla-Garcia, N.; Farmer, A. D.; Dubey, A.; Saxena, K. B.; Gao, J.; Fakrudin, B.; Singh, M. N.; Singh, B. P.; Wanjari, K. B.; Yuan, M.; Srivastava, R. K.; Kilian, A.; Upadhyaya, H. D.; Mallikarjuna, N.; Town, C. D.; Bruening, G. E.; He, G.; May, G. D.; McCombie, R.; Jackson, S. A.; Singh, N. K.; Cook, D. R.

2009-01-01

15

Effect of cadmium and nickel on photosynthesis and the enzymes of the photosynthetic carbon reduction cycle in pigeonpea (Cajanus cajan L.)  

Microsoft Academic Search

The effect of Cd2+ and Ni2+ on the rate of photosynthesis and activities of key enzymes of the photosynthetic carbon reduction cycle was examined in leaves from pigeonpea (Cajanus cajan L., cv. UPAS-120) grown in nitrogen free sand culture. Two different concentrations of Cd2+ and Ni2+ were applied through the rooting medium at two growth stages. The application of Cd2+

I. S. Sheoran; H. R. Singal; Randhir Singh

1990-01-01

16

Expression of hemagglutinin protein of Rinderpest virus in transgenic pigeon pea [ Cajanus cajan (L.) Millsp.] plants  

Microsoft Academic Search

Rinderpest virus is the causative agent of a devastating, often fatal disease in wild and domestic bovids that is endemic in Africa, the Middle East and South Asia. The existing live attenuated vaccine is heat-labile, and thus there is a need for the development of new strategies for vaccination. This paper reports the development of transgenic pigeon pea [Cajanus cajun

V. V. Satyavathi; V. Prasad; Abha khandelwal; M. Shaila; Lakshmi G. Sita

2003-01-01

17

The kinetics of reversal of pre-sickled erythrocytes by the aqueous extract of Cajanus cajan seeds.  

PubMed

The aqueous methanol extract (3:1, v/v) of the seeds of Cajanus cajan was investigated for antisickling properties. The extract possessed significant antisickling activity and was found to be concentration-dependent. The kinetics of reversal of presickled erythrocyte (HbSS) cells using the extract at 0.5 mg/mL, 1.0 mg/mL, 1.5 mg/mL, 2.0 mg/mL and 2.5 mg/mL showed first-order kinetics with rate constants of 5.833 x 10(-3) min(-1), 6.143 x 10(-3) min(-1), 5.957 x 10(-3) min(-1) 6.00 x 10(-3) min(-1) and 6.046 x 10(-3) min(-1), respectively, and with an average half-life 115.6 min. Phytochemical screening of the extract revealed the presence of free amino acids, phenolic compounds, tannins, globulins and saponins. These results show that the extract has potential use in the management of painful episodes experienced by sickle cell patients. PMID:12458479

Ogoda Onah, Johnson; Akubue, Paul I; Okide, George B

2002-12-01

18

Evaluation and Validation of Housekeeping Genes as Reference for Gene Expression Studies in Pigeonpea (Cajanus cajan) Under Drought Stress Conditions  

PubMed Central

Gene expression analysis using quantitative real-time PCR (qRT-PCR) is a very sensitive technique and its sensitivity depends on the stable performance of reference gene(s) used in the study. A number of housekeeping genes have been used in various expression studies in many crops however, their expression were found to be inconsistent under different stress conditions. As a result, species specific housekeeping genes have been recommended for different expression studies in several crop species. However, such specific housekeeping genes have not been reported in the case of pigeonpea (Cajanus cajan) despite the fact that genome sequence has become available for the crop. To identify the stable housekeeping genes in pigeonpea for expression analysis under drought stress conditions, the relative expression variations of 10 commonly used housekeeping genes (EF1?, UBQ10, GAPDH, 18SrRNA, 25SrRNA, TUB6, ACT1, IF4?, UBC and HSP90) were studied on root, stem and leaves tissues of Asha (ICPL 87119). Three statistical algorithms geNorm, NormFinder and BestKeeper were used to define the stability of candidate genes. geNorm analysis identified IF4? and TUB6 as the most stable housekeeping genes however, NormFinder analysis determined IF4? and HSP90 as the most stable housekeeping genes under drought stress conditions. Subsequently validation of the identified candidate genes was undertaken in qRT-PCR based gene expression analysis of uspA gene which plays an important role for drought stress conditions in pigeonpea. The relative quantification of the uspA gene varied according to the internal controls (stable and least stable genes), thus highlighting the importance of the choice of as well as validation of internal controls in such experiments. The identified stable and validated housekeeping genes will facilitate gene expression studies in pigeonpea especially under drought stress conditions. PMID:25849964

Sinha, Pallavi; Singh, Vikas K.; Suryanarayana, V.; Krishnamurthy, L.; Saxena, Rachit K.; Varshney, Rajeev K.

2015-01-01

19

Comparative study of antidiabetic activity of Cajanus cajan and Tamarindus indica in alloxan-induced diabetic mice with a reference to in vitro antioxidant activity  

PubMed Central

Background: Oxidative stress not only develops complications in diabetic (type 1 and type 2) but also contributes to beta cell destruction in type 2 diabetes in insulin resistance hyperglycemia. Glucose control plays an important role in the pro-oxidant/antioxidant balance. Some antidiabetic agents may by themselves have antioxidant properties independently of their role on glucose control. Objective: The present investigation draws a comparison of the protective antioxidant activity, total phenol content and the antihyperglycemic activity of the methanolic extract of Cajanus cajan root (MCC) and Tamarindus indica seeds (MTI). Materials and Methods: Antidiabetic potentials of the plant extracts were evaluated in alloxan-induced diabetic Swiss albino mice. The plant extracts at the doses of 200 and 400 mg/kg body weight was orally administered for glucose tolerance test during 1-hour study and hypoglycemic effect during 5-day study period in comparison with reference drug Metformin HCl (50 mg/kg). In vitro antioxidant potential of MCC and MTI was investigated by using 1, 1- diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity at 517 nm. Total phenolic content, total antioxidant capacity and reducing power activity was also assayed. Results: There was a significant decrease in fasting serum glucose level (P < 0.001), reduction in blood glucose level (P < 0.001) in 5-days study, observed in the alloxan-induced diabetic mice. The reduction efficacy of blood glucose level of both the extracts is proportional to their dose but MCC is more potent than MTI. Antioxidant study and quantification of phenolic compound of both the extracts revealed that they have high antioxidant capacity. Conclusion: These studies showed that MCC and MTI have both hypoglycemic and antioxidant potential but MCC is more potent than MTI. The present study suggests that both MCC and MTI could be used in managing oxidative stress. PMID:24761124

Nahar, Laizuman; Nasrin, Fatema; Zahan, Ronok; Haque, Anamul; Haque, Ekramul; Mosaddik, Ashik

2014-01-01

20

Factors affecting the protein quality of pigeonpea ( Cajanus cajan L.)  

Microsoft Academic Search

Pigeonpea occupies an important place in human nutrition as a source of dietary proteins in several countries. Some of the important factors that affect the protein quality of pigeonpea have been reviewed and summarised in this paper. Among important food legumes, pigeonpea contained the lowest amount of limiting sulphur amino acids, methionine and cystine implicating the importance of these amino

U. SINGtt; B. O. Eggum

1984-01-01

21

Effect of zinc on free radicals and proline in Brassica and Cajanus  

Microsoft Academic Search

Investigations were carried out to study the effect of zinc on growth, free radical production and proline accumulation in shoots of Brassica juncea (Brassicaceae) and Cajanus cajan (Fabaceae). Seedlings were raised in modified B5 medium supplemented with zinc sulphate under controlled aseptic conditions. In general, small concentrations of zinc (up to 0.1 mM) promoted growth of seedlings in both plant

Alia; K. V. S. K. Prasad; P. Pardha Saradhi

1995-01-01

22

Cytoplasmic Male Sterility-Associated Chimeric Open Reading Frames Identified by Mitochondrial Genome Sequencing of Four Cajanus Genotypes  

PubMed Central

The hybrid pigeonpea (Cajanus cajan) breeding technology based on cytoplasmic male sterility (CMS) is currently unique among legumes and displays major potential for yield increase. CMS is defined as a condition in which a plant is unable to produce functional pollen grains. The novel chimeric open reading frames (ORFs) produced as a results of mitochondrial genome rearrangements are considered to be the main cause of CMS. To identify these CMS-related ORFs in pigeonpea, we sequenced the mitochondrial genomes of three C. cajan lines (the male-sterile line ICPA 2039, the maintainer line ICPB 2039, and the hybrid line ICPH 2433) and of the wild relative (Cajanus cajanifolius ICPW 29). A single, circular-mapping molecule of length 545.7 kb was assembled and annotated for the ICPA 2039 line. Sequence annotation predicted 51 genes, including 34 protein-coding and 17 RNA genes. Comparison of the mitochondrial genomes from different Cajanus genotypes identified 31 ORFs, which differ between lines within which CMS is present or absent. Among these chimeric ORFs, 13 were identified by comparison of the related male-sterile and maintainer lines. These ORFs display features that are known to trigger CMS in other plant species and to represent the most promising candidates for CMS-related mitochondrial rearrangements in pigeonpea. PMID:23792890

Tuteja, Reetu; Saxena, Rachit K.; Davila, Jaime; Shah, Trushar; Chen, Wenbin; Xiao, Yong-Li; Fan, Guangyi; Saxena, K. B.; Alverson, Andrew J.; Spillane, Charles; Town, Christopher; Varshney, Rajeev K.

2013-01-01

23

Genetic Diversity and Demographic History of Cajanus spp. Illustrated from Genome-Wide SNPs  

PubMed Central

Understanding genetic structure of Cajanus spp. is essential for achieving genetic improvement by quantitative trait loci (QTL) mapping or association studies and use of selected markers through genomic assisted breeding and genomic selection. After developing a comprehensive set of 1,616 single nucleotide polymorphism (SNPs) and their conversion into cost effective KASPar assays for pigeonpea (Cajanus cajan), we studied levels of genetic variability both within and between diverse set of Cajanus lines including 56 breeding lines, 21 landraces and 107 accessions from 18 wild species. These results revealed a high frequency of polymorphic SNPs and relatively high level of cross-species transferability. Indeed, 75.8% of successful SNP assays revealed polymorphism, and more than 95% of these assays could be successfully transferred to related wild species. To show regional patterns of variation, we used STRUCTURE and Analysis of Molecular Variance (AMOVA) to partition variance among hierarchical sets of landraces and wild species at either the continental scale or within India. STRUCTURE separated most of the domesticated germplasm from wild ecotypes, and separates Australian and Asian wild species as has been found previously. Among Indian regions and states within regions, we found 36% of the variation between regions, and 64% within landraces or wilds within states. The highest level of polymorphism in wild relatives and landraces was found in Madhya Pradesh and Andhra Pradesh provinces of India representing the centre of origin and domestication of pigeonpea respectively. PMID:24533111

Saxena, Rachit K.; von Wettberg, Eric; Upadhyaya, Hari D.; Sanchez, Vanessa; Songok, Serah; Saxena, Kulbhushan; Kimurto, Paul; Varshney, Rajeev K.

2014-01-01

24

Effect of gamma irradiation on physicochemical properties of stored pigeon pea (Cajanus cajan) flour  

PubMed Central

The effect of gamma irradiation at various doses (5, 10, 15, 20 kGy) was observed on pigeon pea flour stored for 3 months on proximate composition, functional properties, and peroxide value. Sensory evaluation was also carried out on bean cake (moinmoin) made from nonirradiated and irradiated pigeon pea flour. The results showed that stored gamma-irradiated samples had significantly lower (P < 0.05) value of protein and little or no effect on moisture content. There were slight decreases in crude fiber and ash content of the irradiated samples compared with the control sample. The result of functional properties of the irradiated flours showed slight increase in water absorption capacity, swelling capacity and bulk density. The peroxide value of crude oil increased significantly with dose increases for the period of storage. The sensory evaluation of moinmoin samples prepared from irradiated pigeon pea flour showed no significant difference from the moinmoin sample prepared from nonirradiated flour. It can be concluded that gamma irradiation can extend the shelf life of pigeon pea flour. PMID:24804044

Bamidele, Oluwaseun P; Akanbi, Charles T

2013-01-01

25

Genomics-assisted breeding for boosting crop improvement in pigeonpea (Cajanus cajan)  

PubMed Central

Pigeonpea is an important pulse crop grown predominantly in the tropical and sub-tropical regions of the world. Although pigeonpea growing area has considerably increased, yield has remained stagnant for the last six decades mainly due to the exposure of the crop to various biotic and abiotic constraints. In addition, low level of genetic variability and limited genomic resources have been serious impediments to pigeonpea crop improvement through modern breeding approaches. In recent years, however, due to the availability of next generation sequencing and high-throughput genotyping technologies, the scenario has changed tremendously. The reduced sequencing costs resulting in the decoding of the pigeonpea genome has led to the development of various genomic resources including molecular markers, transcript sequences and comprehensive genetic maps. Mapping of some important traits including resistance to Fusarium wilt and sterility mosaic disease, fertility restoration, determinacy with other agronomically important traits have paved the way for applying genomics-assisted breeding (GAB) through marker assisted selection as well as genomic selection (GS). This would accelerate the development and improvement of both varieties and hybrids in pigeonpea. Particularly for hybrid breeding programme, mitochondrial genomes of cytoplasmic male sterile (CMS) lines, maintainers and hybrids have been sequenced to identify genes responsible for cytoplasmic male sterility. Furthermore, several diagnostic molecular markers have been developed to assess the purity of commercial hybrids. In summary, pigeonpea has become a genomic resources-rich crop and efforts have already been initiated to integrate these resources in pigeonpea breeding. PMID:25741349

Pazhamala, Lekha; Saxena, Rachit K.; Singh, Vikas K.; Sameerkumar, C. V.; Kumar, Vinay; Sinha, Pallavi; Patel, Kishan; Obala, Jimmy; Kaoneka, Seleman R.; Tongoona, P.; Shimelis, Hussein A.; Gangarao, N. V. P. R.; Odeny, Damaris; Rathore, Abhishek; Dharmaraj, P. S.; Yamini, K. N.; Varshney, Rajeev K.

2015-01-01

26

Effect of gamma irradiation on physicochemical properties of stored pigeon pea (Cajanus cajan) flour.  

PubMed

The effect of gamma irradiation at various doses (5, 10, 15, 20 kGy) was observed on pigeon pea flour stored for 3 months on proximate composition, functional properties, and peroxide value. Sensory evaluation was also carried out on bean cake (moinmoin) made from nonirradiated and irradiated pigeon pea flour. The results showed that stored gamma-irradiated samples had significantly lower (P < 0.05) value of protein and little or no effect on moisture content. There were slight decreases in crude fiber and ash content of the irradiated samples compared with the control sample. The result of functional properties of the irradiated flours showed slight increase in water absorption capacity, swelling capacity and bulk density. The peroxide value of crude oil increased significantly with dose increases for the period of storage. The sensory evaluation of moinmoin samples prepared from irradiated pigeon pea flour showed no significant difference from the moinmoin sample prepared from nonirradiated flour. It can be concluded that gamma irradiation can extend the shelf life of pigeon pea flour. PMID:24804044

Bamidele, Oluwaseun P; Akanbi, Charles T

2013-09-01

27

Molecular mapping of QTLs for plant type and earliness traits in pigeonpea (Cajanus cajan L. Millsp.)  

PubMed Central

Background Pigeonpea is an important grain legume of the semi-arid tropics and sub-tropical regions where it plays a crucial role in the food and nutritional security of the people. The average productivity of pigeonpea has remained very low and stagnant for over five decades due to lack of genomic information and intensive breeding efforts. Previous SSR-based linkage maps of pigeonpea used inter-specific crosses due to low inter-varietal polymorphism. Here our aim was to construct a high density intra-specific linkage map using genic-SNP markers for mapping of major quantitative trait loci (QTLs) for key agronomic traits, including plant height, number of primary and secondary branches, number of pods, days to flowering and days to maturity in pigeonpea. Results A population of 186 F2:3 lines derived from an intra-specific cross between inbred lines ‘Pusa Dwarf’ and ‘HDM04-1’ was used to construct a dense molecular linkage map of 296 genic SNP and SSR markers covering a total adjusted map length of 1520.22 cM for the 11 chromosomes of the pigeonpea genome. This is the first dense intra-specific linkage map of pigeonpea with the highest genome length coverage. Phenotypic data from the F2:3 families were used to identify thirteen QTLs for the six agronomic traits. The proportion of phenotypic variance explained by the individual QTLs ranged from 3.18% to 51.4%. Ten of these QTLs were clustered in just two genomic regions, indicating pleiotropic effects or close genetic linkage. In addition to the main effects, significant epistatic interaction effects were detected between the QTLs for number of pods per plant. Conclusions A large amount of information on transcript sequences, SSR markers and draft genome sequence is now available for pigeonpea. However, there is need to develop high density linkage maps and identify genes/QTLs for important agronomic traits for practical breeding applications. This is the first report on identification of QTLs for plant type and maturity traits in pigeonpea. The QTLs identified in this study provide a strong foundation for further validation and fine mapping for utilization in the pigeonpea improvement. PMID:23043321

2012-01-01

28

The Potential of Pigeonpea (Cajanus cajan) for Producing Important Components of Renewable Energy and Agricultural Products  

NASA Astrophysics Data System (ADS)

In agricultural systems, sustainable crop production is critical in meeting both environmental requirements and the limitations of drought imposed by the effects of global warming. The inputs for crop production and end use of the products should determine the choice of a crop particularly in environments prone to droughts. The objective of this paper is to highlight why a multi-purpose grain legume such as pigeonpea is an ideal crop that can be utilized for producing renewable energy. Firstly, it is highly tolerant to drought and does not require additional soil moisture after the seedling growth stage. The deep tape root extracts moisture and nutrients from deep layers of the soil concomitantly allowing for efficient nutrient recycling. The piscidic acid which is exuded from the roots enhances the solubilization of phosphorus in order to make it available for plant uptake. Secondly, the grain of pigeonpea is suitable for both human food and feedstocks. The grain is rich in oil, vitamins, minerals and protein. The grain can also be used for producing biofuel. In many countries particularly in the developing world, the stover is used as fuel wood or building (roofing) material, thus alleviating pressure on forest products. The crop is grown without the application of inorganic fertilizers as it can fix atmospheric nitrogen symbiotically in its root nodules. Pigeonpea is also ratoonable, producing two or more harvests per season. In addition, it is grown in mixed cropping systems thus optimizing land use. In these regards, pigeonpea is sustainable and environmentally friendly choice for agricultural production of food and energy balance.

Gwata, E.

2012-04-01

29

Studies on dhal recovery from pre-treated pigeon pea ( Cajanus cajan L .) cultivars.  

PubMed

Dhal recovery from three popular varieties of North Karnataka was studied using CFTRI mini dhal mill with five different treatments at three different levels. It was observed that Gulyal variety treated with mustard oil recorded maximum hulling efficiency (79.4%) and finished product (68.8%) when compared to a Maruti and Asha variety. However, acetic acid treatment recorded higher hulling efficiency (76.5%) for Maruti followed by Asha (56.9%). The plant growth promoting rhizobacteria (PGPR) treatment yielded minimum hulling efficiency and finished product recovery for all the varieties. PMID:24803699

Hiregoudar, Sharanagouda; Sandeep, T N; Nidoni, Udaykumar; Shrestha, Bijay; Meda, Venkatesh

2014-05-01

30

AFLP analysis in pigeonpea ( Cajanus cajan (L.) Millsp.) revealed close relationship of cultivated genotypes with some of its wild relatives  

Microsoft Academic Search

A total of 561 amplified fragment length polymorphism (AFLP) loci were generated and used to study the genetic diversity of\\u000a wild and cultivated genotypes of pigeonpea. Out of 561 marker loci, 558 were polymorphic with an average of 76.12 bands. Analysis\\u000a of molecular variation (AMOVA) revealed significant strong population structure when genotypes were structured according to\\u000a continent of origin (FST = 0.22)

K. N. Ganapathy; B. N. Gnanesh; M. Byre Gowda; S. C. Venkatesha; Sunil S. Gomashe; V. Channamallikarjuna

2011-01-01

31

Defining the transcriptome assembly and its use for genome dynamics and transcriptome profiling studies in pigeonpea (Cajanus cajan L.)  

Technology Transfer Automated Retrieval System (TEKTRAN)

This study reports generation of large-scale genomic resources for pigeonpea, a so-called ‘orphan crop species’ of the semi-arid tropic regions. Roche FLX/454 sequencing was carried out on a normalized cDNA pool prepared from 31 tissues produced 494,353 short transcript reads (STRs). Cluster analysi...

32

Quality evaluation of stiff porridges prepared from Irish potato ( Solanum tuberosum ) and pigeon pea ( Cajanus cajan ) starch blends  

Microsoft Academic Search

Quality attributes of stiff porridges prepared from Irish potato and pigeon pea starch blends were studied. Starches were\\u000a extracted from Irish potato and pigeon pea using a wet extraction method. Various ratios of the starches were mixed and analyzed\\u000a for chemical, functional and pasting properties. The starch blends were then prepared into stiff porridges for sensory evaluation\\u000a using a 20-man

Joseph Oneh Abu; Chinma Chiemela Enyinnaya; Samaila James; Ezinne Okeleke

33

Quality evaluation of stiff porridges prepared from Irish potato (Solanum tuberosum) and pigeon pea (Cajanus cajan) starch blends.  

PubMed

Quality attributes of stiff porridges prepared from Irish potato and pigeon pea starch blends were studied. Starches were extracted from Irish potato and pigeon pea using a wet extraction method. Various ratios of the starches were mixed and analyzed for chemical, functional and pasting properties. The starch blends were then prepared into stiff porridges for sensory evaluation using a 20-man sensory panel. Substitution of Irish potato starch with pigeon pea starch led to increases in protein (0.15 to 1.2%), fat (0.26 to 0.56%) and ash (0.30 to 0.69%) while the amylose content of the starch blends decreased (from 23.8 to 18.4%) respectively. Functional properties such as bulk density (0.75 to 0.60 g/cm(3)), water absorption capacity (3.1 to 2.6 g water/ g sample) and dispersibility (58.6 to 42.7%) decreased significantly (P?

Abu, Joseph Oneh; Enyinnaya, Chinma Chiemela; James, Samaila; Okeleke, Ezinne

2012-06-01

34

The Effects of Salinity on Nitrogen Fixation and Trehalose Metabolism in Mycorrhizal Cajanus cajan (L.) Millsp. Plants  

Microsoft Academic Search

Arbuscular mycorrhizal (AM) fungi exist widely in natural ecosystems as well as in salt-affected soils and are considered\\u000a suitable candidates for bio-amelioration of saline soils. Plants respond to salinity by accumulating sugars and other low-molecular-weight\\u000a compatible solutes. One such compound is trehalose, which has been found to play an important role as a stress protectant.\\u000a The aim of the present

Neera Garg; Shikha Chandel

35

Phosphorus intensity determines short-term P uptake by pigeon pea ( Cajanus cajan L.) grown in soils with differing P buffering capacity  

Microsoft Academic Search

Phosphorus (P) uptake by plant roots depends on P intensity (I) and P quantity (Q) in the soil. The relative importance of Q and I on P uptake is unknown for soils with large P sorption capacities because of difficulties in determining trace levels of\\u000a P in the soil solution. We applied a new isotope based method to detect low

Pieter Pypers; Josefien Delrue; Jan Diels; Erik Smolders; Roel Merckx

2006-01-01

36

Expression of biologically active Hemagglutinin-neuraminidase protein of Peste des petits ruminants virus in transgenic pigeonpea [ Cajanus cajan (L) Millsp.  

Microsoft Academic Search

Hemagglutinin-neuraminidase (HN) gene of Peste des petits ruminants virus (PPRV) has been expressed in pigeonpea for the development of an edible vaccine for Peste des Petits ruminant (PPR). PPRV, causes PPR disease in sheep and goats with high mortality rate. The two surface glycoproteins of PPRV Hemagglutinin-neuraminidase and fusion protein (F) confer protective immunity. We report the successful generation of

V Prasad; V. V Satyavathi; Sanjaya; K. M Valli; Abha Khandelwal; M. S Shaila; G Lakshmi Sita

2004-01-01

37

Characterization of expressed sequence tags (ESTs) of pigeonpea ( Cajanus cajan L.) and functional validation of selected genes for abiotic stress tolerance in Arabidopsis thaliana  

Microsoft Academic Search

Pigeonpea, a major grain legume crop with remarkable drought tolerance traits, has been used for the isolation of stress-responsive\\u000a genes. Herein, we report generation of ESTs, transcript profiles of selected genes and validation of candidate genes obtained\\u000a from the subtracted cDNA libraries of pigeonpea plants subjected to PEG\\/water-deficit stress conditions. Cluster analysis\\u000a of 124 selected ESTs yielded 75 high-quality ESTs.

B. Priyanka; K. Sekhar; T. Sunita; V. D. Reddy; Khareedu Venkateswara Rao

2010-01-01

38

Identification of Coupling and Repulsion Phase DNA Marker Associated With an Allele of a Gene Conferring Host Plant Resistance to Pigeonpea sterility mosaic virus (PPSMV) in Pigeonpea (Cajanus cajan L. Millsp.)  

PubMed Central

Pigeonpea Sterility Mosaic Disease (PSMD) is an important foliar disease caused by Pigeonpea sterility mosaic virus (PPSMV) which is transmitted by eriophyid mites (Aceria cajani Channabasavanna). In present study, a F2 mapping population comprising 325 individuals was developed by crossing PSMD susceptible genotype (Gullyal white) and PSMD resistant genotype (BSMR 736). We identified a set of 32 out of 300 short decamer random DNA markers that showed polymorphism between Gullyal white and BSMR 736 parents. Among them, eleven DNA markers showed polymorphism including coupling and repulsion phase type of polymorphism across the parents. Bulked Segregant Analysis (BSA), revealed that the DNA marker, IABTPPN7, produced a single coupling phase marker (IABTPPN7414) and a repulsion phase marker (IABTPPN7983) co-segregating with PSMD reaction. Screening of 325 F2 population using IABTPPN7 revealed that the repulsion phase marker, IABTPPN7983, was co-segregating with the PSMD responsive SV1 at a distance of 23.9 cM for Bidar PPSMV isolate. On the other hand, the coupling phase marker IABTPPN7414 did not show any linkage with PSMD resistance. Additionally, single marker analysis both IABTPPN7983 (P<0.0001) and IABTPPN 7414 (P<0.0001) recorded a significant association with the PSMD resistance and explained a phenotypic variance of 31 and 36% respectively in F2 population. The repulsion phase marker, IABTPPN7983, could be of use in Marker-Assisted Selection (MAS) in the PPSMV resistance breeding programmes of pigeonpea. PMID:25774108

Daspute, Abhijit; Fakrudin, B.

2015-01-01

39

40 CFR 180.41 - Crop group tables.  

Code of Federal Regulations, 2010 CFR

...Cajanus cajan ) 6A, 6B, 6C Soybean (Glycine max ) N/A Soybean (immature seed) (Glycine max ) 6A Sword bean (Canavalia gladiata...field pea (Pisum spp.), and soybean ( Glycine max ) Plant parts of any legume...

2010-07-01

40

Trace element determination in warm-climate plants by Atomic Absorption Spectroscopy and Ion Selective Electrodes  

Microsoft Academic Search

Minor and trace elements of biological interest in some warm climate plants cultivated at Aswan (Egypt) were analysed to demonstrate their element metabolism, animal nutrition, toxicological effect and their uses as therapeutic plants. The seven plants studied wereMacroptilium atropurpureum,Pennisetum glaucum,Cyamopsis tetragonolobus,Dolichos purpureus,Cajanus cajan8 (Variety 78\\/237 A-Brasil),Cajanus cajan13 (Variety 79\\/450 Uganda) andProsopis juliflora. Silver, gold, cadmium, cobalt, copper, iron, potassium, manganese,

M. N. Rashed

1995-01-01

41

Additional hosts of alfalfa mosaic virus, cucumber mosaic virus, and tobacco mosaic virus in New Zealand  

Microsoft Academic Search

In New Zealand, alfalfa mosaic virus is recorded on three new field crop hosts, Cajanus cajan (L.) Huth, Coriandrum sativum L., and Wasabia japonica (Miquel) Matsum. Cucumber mosaic virus is recorded on the weeds Cirsium vulgare L. and Veronica persica Poiret and on the ornamental perennial Gentiana sp. Tobacco mosaic virus is recorded on sunflower Helianthus annuus L.

J. D. Fletcher

1989-01-01

42

Allelopathic effects of leaf litters of Eucalyptus camaldulensis on some forest and agricultural crops  

Microsoft Academic Search

Allelopathic effects of different doses of Eucalyptus camaldulensis leaf litters were investigated through an experiment in the green house of Institute of Forestry and Environmental Sciences,\\u000a Chittagong, Bangladesh. Three popular agricultural crops: Falen (Vigna unguiculata), Chickpea (Cicer arietinum), Arhor (Cajanus cajan) and two widely used plantation trees: Sada koroi (Albizia procera) and Ipil ipil (Leucaena leucocephala) were selected as bioassay

Romel Ahmed; A. T. M. Rafiqul Hoque; Mohammed Kamal Hossain

2008-01-01

43

POTENTIAL GRAIN AND FORAGE PRODUCTION OF EARLY MATURING PIGEONPEAS IN THE SOUTHERN PLAINS  

Technology Transfer Automated Retrieval System (TEKTRAN)

Forage-based livestock production is a significant component of the agricultural economy throughout the southern Great Plains. However, low forage mass and quality for grazing limits livestock productivity from late-July to early-November. Pigeonpea (Cajanus cajan L. Millsp) is a warm-season grain...

44

Water acquisition from rainfall and groundwater by legume crops developing deep rooting systems determined with stable hydrogen isotope compositions of xylem waters  

Microsoft Academic Search

The deuterium\\/hydrogen isotope ratios (?D) of xylem waters from pigeon pea (Cajanus cajan) and sesbania (Sesbania sesban) plants grown in semi-arid Zambia were investigated to know the seasonal variation in water sources for those crops. The study was conducted at a field site in the Zambia National Irrigation Research Station from November 2000 until April 2001. We measured the ?D

N. Sekiya; K. Yano

2002-01-01

45

Pigeon Pea: A versatile, drought-resistant crop for the Sothern Great Plains  

Technology Transfer Automated Retrieval System (TEKTRAN)

Pigeonpea [Cajanus cajan(L.)] is a drought tolerant legume originating in India and ranking sixth in production worldwide, compared to other grain legumes. The objective of this study was to evaluate the production potential of pigeonpea in the alkaline clay soils of the North Texas Blacklands. Four...

46

Legume genomics: Understanding biology through DNA and RNA sequencing  

Technology Transfer Automated Retrieval System (TEKTRAN)

Background. The legume family (Leguminosae) consists of approximately 17,000 species. A few of these species including, but not limited to; Phaseolus vulgaris, Cicer arietinum, and Cajanus cajan, are important dietary components, providing the dietary protein for approximately 300 million people wor...

47

Modulation of quorum sensing controlled behaviour of bacteria by growing seedling, seed and seedling extracts of leguminous plants  

Microsoft Academic Search

Effect of growing seedling, seeds and seedlings extracts from seven leguminous plants (Pisum sativum, Vigna radiata, Vigna mungo, Cajanus cajan, Lentil culinaris, Cicer arietinum and Trigonella foenum graecum) were screened for their ability to influence quorum sensing controlled pigment production in Chromobacterium violaceum indicator strains (CV12472 and CVO26). Germinating seedling and seedling extracts of only P. sativum (pea) showed inhibition

Qaseem Fatima; Maryam Zahin; Mohd Sajjad Ahmad Khan; Iqbal Ahmad

2010-01-01

48

Effect of cover crop on soil physical and chemical properties of an alfisol in the Sudan savannah of Burkina faso  

Microsoft Academic Search

The effect of several leguminous and graminaceous cover crops on soil physical and chemical properties was studied on a moderately eroded Alfisol in the Sudan savannah of Burkina Faso during the growing seasons of 1986 and 1987. Cover crops sown in 1986 were Macroptilium artropurpureum, M. lathyroides, Vigna radiata var. radiata, Cajanus cajan, Alysicarpus vaginalis, Lablab purpureus, Psophocarpus palustris, Digitaria

N. R. Hulugalle

1988-01-01

49

WEED CONTROL IN A PIGEON PEA - WHEAT ROTATION: FINAL REPORT OF A THREE YEAR STUDY  

Technology Transfer Automated Retrieval System (TEKTRAN)

Pigeon pea [Cajanus cajan (L.) Millsp.] has potential as a hay, grain, and green manure crop in the southern Great Plains. Rapid growth of pigweed [Amaranthus retroflexus (L.)] adversely affects establishment of slower-growing pigeon pea. A 3-yr study was conducted from June 1998 through June 2001 i...

50

Biological nitrogen fixation and nitrogen and phosphorus budgets in farmer-managed intercrops of maize–pigeonpea in semi-arid southern and eastern Africa  

Microsoft Academic Search

Biological nitrogen fixation (BNF), nitrogen (N), and phosphorus (P) imports-exports budgets were estimated at four locations,\\u000a each with 20 farmer-managed fields for two years in a semi-arid Tanzania and Malawi. The 15N isotope dilution method was used to quantify BNF by three pigeonpea (Cajanus cajan L. Millspp.) varieties intercropped with maize (Zea mays L.). The N and P accumulation in

Joseph J. Adu-Gyamfi; Fidelis A. Myaka; Webster D. Sakala; Rie Odgaard; Jens M. Vesterager; Henning Høgh-Jensen

2007-01-01

51

Zinc-Induced Changes in Growth Characters, Foliar Properties, and Zn-Accumulation Capacity of Pigeon Pea at Different Stages of Plant Growth  

Microsoft Academic Search

Application of zinc (Zn) [50, 100, 200, 300, and 400 ? g zinc sulfate (ZnSO4)\\/g of soil] reduced the foliage and the total growth of pigeon pea [Cajanus cajan (Linn.) Huth]. The root-shoot length ratio, varying little with age, was relatively low in the treated plants. Decrease in dry weights of stem and root was more pronounced in the late

Tarannum Khudsar; Anjum Arshi; Tariq O. Siddiqi; Mahmooduzzafar; Muhammad Iqbal

2008-01-01

52

Cytokinin-like effects of caffeine in bioassays  

Microsoft Academic Search

Cytokinin-like effects of pure caffeine were tested in bioassays specific for this hormonal activity [radish cotyledon growth\\u000a and chlorophyll (Chl) biosynthesis in cucumber cotyledon and tobacco cell suspension] and in cell elongation bioassays [elongation\\u000a of segments from soybean internode and internode elongation in dwarf cultivars of guandu (Cajanus cajan) and mucuna (Mucuna\\u000a deeringiana)]. 6-Benzyl-aminopurine and kinetin (KIN) were used for

A. P. Vitória; P. Mazzafera

1997-01-01

53

Declination of Copper Toxicity in Pigeon Pea and Soil System by Growth-Promoting Proteus vulgaris KNP3 Strain  

Microsoft Academic Search

The copper-resistant (1318 ?M CuSO4·5H2O) strain KNP3 of Proteus vulgaris was isolated from soil near the Panki power plant, Kanpur, India, and was used to inoculate pigeon pea (Cajanus cajan var. UPS-120) seeds grown in soil for 60 days in the presence of 600 ?M CuSO4·5H2O. A study of siderophore production (126.34 ± 0.52 ?g ml?1) and its subsequent effects on plant growth

Anju Rani; Yogesh S. Shouche; Reeta Goel

2008-01-01

54

ParaSITE  

E-print Network

paraSITE proposes the appropriation of exterior ventilation systems on existing architecture to inflate pneumatic shelters that are designed for homeless people. This project involves the production of a series of inflatable ...

Rakowitz, Michael

1998-01-01

55

TESIS DOCTORAL NEGACION CONSTRUCTIVA PARA  

E-print Network

TESIS DOCTORAL NEGACION CONSTRUCTIVA PARA PROGRAMACION LOGICA-ECUACIONAL Memoria presentada por Mar CONSTRUCTIVA PARA PROGRAMACION LOGICA-ECUACIONAL Tesis Doctoral en Inform#19;atica presentada por Mar#19;#16;a

Alpuente, María

56

AYUDA PARA INVIDENTES UTILIZANDO TELEFONOS  

E-print Network

´on, aplicaci´on para m´oviles, c´odigo, base de da- tos,dpi (puntos por pulgada, dots per inch),layout,GPS. III la UAM. #12;Resumen Resumen El proyecto desarrolla aplicaciones para ayuda a invidentes utlizando tel´efonos inteligentes. La aplicaci´on principal est´a desarrollada para aparatos Android. Tiene como objetivo ayudar

Autonoma de Madrid, Universidad

57

Tomografía computarizada (TC) y exploraciones para cáncer  

Cancer.gov

Hoja informativa que describe el procedimiento y la tecnología de exploraciones con tomografía computarizada así como sus usos para el diagnóstico, para exámenes de detección y para tratamiento del cáncer.

58

Pruebas genéticas para síndromes hereditarios de cáncer  

Cancer.gov

Hoja informativa sobre pruebas genéticas para riesgos heredados de cáncer; incluye tipos de pruebas, para quién están indicadas y explicación y confidencialidad de los resultados. Ofrece información de pruebas genéticas a domicilio o pruebas para el consumidor.

59

Separating para and ortho water.  

PubMed

Water exists as two nuclear-spin isomers, para and ortho, determined by the overall spin of its two hydrogen nuclei. For isolated water molecules, the conversion between these isomers is forbidden and they act as different molecular species. Yet, these species are not readily separated, and no pure para sample has been produced. Accordingly, little is known about their specific physical and chemical properties, conversion mechanisms, or interactions. The production of isolated samples of both spin isomers is demonstrated in pure beams of para and ortho water in their respective absolute ground state. These single-quantum-state samples are ideal targets for unraveling spin-conversion mechanisms, for precision spectroscopy and fundamental symmetry-breaking studies, and for spin-enhanced applications, for example laboratory astrophysics and astrochemistry or hypersensitized NMR experiments. PMID:25196938

Horke, Daniel A; Chang, Yuan-Pin; D?ugo??cki, Karol; Küpper, Jochen

2014-10-27

60

SEGURIDAD ENERGETICASEGURIDAD ENERGETICA UN DESAFIO PARA CHILEUN DESAFIO PARA CHILE  

E-print Network

Universidad Católica de Chile Departamento de Ingeniería Eléctrica Hugh Rudnick 24 Noviembre 2006 #12;2 Tabla Producto Geográfico Bruto versus Consumo Energético (Fuente: CNE y Banco Central) Desarrollo económico y con petróleo a EEUU en relación a Israel el año 1970 ·Venezuela utilizando energía para influir en

Catholic University of Chile (Universidad Católica de Chile)

61

Compatibilidad con audfonos para sordos  

E-print Network

Compatibilidad con audífonos para sordos Hearing Aid Compatibility Q&A Q. What does hearing aid the different features of the phone thoroughly and in different locations, using your hearing aid or cochlear implant, to determine if you hear any interfering noise. Consult a sales representative about phone return

Greenberg, Albert

62

Prmio para trs novas aplicaes  

E-print Network

Prémio para três novas aplicações Tecnologia. A "wiride" venceu o "Lisbon Big Apps", concurso de Instituto Superior Técnico que desenvolveu o projeto, citada pelo/dAT, a "wiride" é uma nova forma de andar

Instituto de Sistemas e Robotica

63

Optimum domestic processing and cooking methods for reducing the polyphenolic (antinutrient) content of pigeon peas.  

PubMed

Four high yielding and early maturing cultivars of pigeon pea (Cajanus cajan) namely UPAS-120, ICPL-87, ICPL-151 and, especially, Manak, contained significant amounts of polyphenols (1075 to 1328 mg/100g), which may limit their utilization. The effectiveness of soaking (6, 12 and 18 h, 30 degrees C), soaking and dehulling, ordinary cooking, pressure cooking and germination (24, 36, 48 h, 30 degrees C) in reducing the levels of polyphenols was investigated. A decrease in the polyphenolic contents varying from 4 to 26 percent in different pigeon pea cultivar was achieved. Pressure cooking of soaked-dehulled seeds was found to be the most effective method, followed by sprouting for 48 h, ordinary cooking of soaked-dehulled seeds, and pressure cooking of soaked whole seeds followed by sprouting for 36 h. PMID:10768410

Duhan, A; Khetarpaul, N; Bishnoi, S

2000-01-01

64

Impact of mine waste dumps on growth and biomass of economically important crops.  

PubMed

The present study aimed to investigate the effect of magnesite and bauxite waste dumps on growth and biochemical parameters of some edible and economically important plants such as Vigna radiata, V. mungo, V. unguiculata, Eleusine coracana, Cajanus cajan, Pennisetum glaucum, Macrotyloma uniflorum, Oryza sativa, Sorghum bicolour, Sesamum indicum, Ricinus communis, Brassica juncea, Gossypium hirsutum and Jatropha curcas. The growth rate of all the crops was observed in the range of 75 to 100% in magnesite and 15 to 100% in bauxite mine soil. The moisture content of roots and shoots of all the crops were in the range of 24 to 77, 20 to 88% and 42 to 87, 59 to 88% respectively. The height of the crops was in the range of 2.6 to 48 cm in magnesite soil and 3 to 33 cm in bauxite soil. Thus the study shows that both mine soils reflects some physical and biomolecule impact on selected crops. PMID:23741803

Mathiyazhagan, Narayanan; Natarajan, Devarajan

2012-11-01

65

Estudios ALCHEMIST para el cáncer de pulmón  

Cancer.gov

Conjunto de información sobre los estudios ALCHEMIST para el cáncer de pulmón, los cuales examinarán los tejidos de tumores de pacientes con cáncer de pulmón en estadio inicial para detectar mutaciones genéticas en genes EGFR y ALK.

66

[Baked product development based fermented legumes and cereals for schoolchildren snack].  

PubMed

The objective of this work was to develop three foodstuffs based on mixes of wheat and fermented and non-fermented legumes, for the purpose of contributing with a healthy alternative for school snacks. To this aim, refined wheat flour was partially substituted with whole legume flours for the preparation of cakes, brownies and cookies, foodstuffs traditionally consumed by school age children. Cakes were formulated substituting 20% of wheat flour with Phaseolus vulgaris flour, brownies with 30% of Cajanus cajan flour and cookies with 30% of Vigna sinensis flour, using fermented and non-fermented legumes in the three products. When these products were subjected to sensorial evaluation through a test of degree of acceptability and using a hedonic scale of 7 points, values higher than 5 in the attributes taste, color and overall appraisal were found for all the products. In addition, the preference was measured with a group of 90 school children, corroborating the results obtained at laboratory level. Chemical characterization showed protein contents between 12 and 13% for the cake, 10 and 11% for the brownies and 10% for the cookies and protein digestibilities in vitro of 91%, 87% and 93%, respectively. The calorie supply, calculated per portion was of 199 kcal, 246 kcal and 237 kcal, for cakes, brownies and cookies, respectively. It was concluded that it is technically possible to incorporate fermented and non-fermented Phaseolus vulgaris, Vigna sinensis and Cajanus cajan, to highly consumed products such as cakes, brownies and cookies with a higher nutritional content and well-accepted by school-age children. PMID:21090280

Granito, Marisela; Valero, Yolmar; Zambrano, Rosaura

2010-03-01

67

Genome duplication and gene loss affect the evolution of heat shock transcription factor genes in legumes.  

PubMed

Whole-genome duplication events (polyploidy events) and gene loss events have played important roles in the evolution of legumes. Here we show that the vast majority of Hsf gene duplications resulted from whole genome duplication events rather than tandem duplication, and significant differences in gene retention exist between species. By searching for intraspecies gene colinearity (microsynteny) and dating the age distributions of duplicated genes, we found that genome duplications accounted for 42 of 46 Hsf-containing segments in Glycine max, while paired segments were rarely identified in Lotus japonicas, Medicago truncatula and Cajanus cajan. However, by comparing interspecies microsynteny, we determined that the great majority of Hsf-containing segments in Lotus japonicas, Medicago truncatula and Cajanus cajan show extensive conservation with the duplicated regions of Glycine max. These segments formed 17 groups of orthologous segments. These results suggest that these regions shared ancient genome duplication with Hsf genes in Glycine max, but more than half of the copies of these genes were lost. On the other hand, the Glycine max Hsf gene family retained approximately 75% and 84% of duplicated genes produced from the ancient genome duplication and recent Glycine-specific genome duplication, respectively. Continuous purifying selection has played a key role in the maintenance of Hsf genes in Glycine max. Expression analysis of the Hsf genes in Lotus japonicus revealed their putative involvement in multiple tissue-/developmental stages and responses to various abiotic stimuli. This study traces the evolution of Hsf genes in legume species and demonstrates that the rates of gene gain and loss are far from equilibrium in different species. PMID:25047803

Lin, Yongxiang; Cheng, Ying; Jin, Jing; Jin, Xiaolei; Jiang, Haiyang; Yan, Hanwei; Cheng, Beijiu

2014-01-01

68

Genome Duplication and Gene Loss Affect the Evolution of Heat Shock Transcription Factor Genes in Legumes  

PubMed Central

Whole-genome duplication events (polyploidy events) and gene loss events have played important roles in the evolution of legumes. Here we show that the vast majority of Hsf gene duplications resulted from whole genome duplication events rather than tandem duplication, and significant differences in gene retention exist between species. By searching for intraspecies gene colinearity (microsynteny) and dating the age distributions of duplicated genes, we found that genome duplications accounted for 42 of 46 Hsf-containing segments in Glycine max, while paired segments were rarely identified in Lotus japonicas, Medicago truncatula and Cajanus cajan. However, by comparing interspecies microsynteny, we determined that the great majority of Hsf-containing segments in Lotus japonicas, Medicago truncatula and Cajanus cajan show extensive conservation with the duplicated regions of Glycine max. These segments formed 17 groups of orthologous segments. These results suggest that these regions shared ancient genome duplication with Hsf genes in Glycine max, but more than half of the copies of these genes were lost. On the other hand, the Glycine max Hsf gene family retained approximately 75% and 84% of duplicated genes produced from the ancient genome duplication and recent Glycine-specific genome duplication, respectively. Continuous purifying selection has played a key role in the maintenance of Hsf genes in Glycine max. Expression analysis of the Hsf genes in Lotus japonicus revealed their putative involvement in multiple tissue-/developmental stages and responses to various abiotic stimuli. This study traces the evolution of Hsf genes in legume species and demonstrates that the rates of gene gain and loss are far from equilibrium in different species. PMID:25047803

Jin, Jing; Jin, Xiaolei; Jiang, Haiyang; Yan, Hanwei; Cheng, Beijiu

2014-01-01

69

Presidncia da Repblica Subchefia para Assuntos Jurdicos  

E-print Network

credenciamento e recredenciamento de instituições de educação superior; II - homologar os instrumentos de necessárias; III - propor ao CNE diretrizes para a elaboração, pelo INEP, dos instrumentos de avaliação para credenciamento de instituições; IV - estabelecer diretrizes para a elaboração, pelo INEP, dos instrumentos de

Paraná, Universidade Federal do

70

Tutorial para rellenar el formulario de expediente de personal y cargos TUTORIAL PARA RELLENAR EL  

E-print Network

Tutorial para rellenar el formulario de expediente de personal y cargos TUTORIAL PARA RELLENAR EL EXPEDIENTE ESPACIAL DE PERSONAS Y CARGOS Objetivo del tutorial: Explicar paso a paso el procedimiento para ubicadas. En este tutorial aprenderá a: ­ Seleccionar mapas de los edificios para imprimir ­ Comprobar los

Escolano, Francisco

71

Pore size distribution of a deeply excavated Oxisol after 19 years reclamation  

NASA Astrophysics Data System (ADS)

Digging of the local soil and using it as a raw material for construction purposes has been identified as a non-negligible source of land degradation. Techniques aimed at soil profile reconstruction and ecological restoration of soils truncated by mechanical excavation using heavy machinery have been investigated Both, total soil porosity and pore size distribution are important properties for soil management as well as for assessing the recovery of soil function after land degradation. In this way, macropores are responsible for aeration, whereas water storage depends on soil meso- and micropores in the soil and the optimal pore-size distribution is also an indicator of soil quality. We investigated the changes in the pore size distribution of a soil that was beheaded to extract raw materials after a 19 year period of reclamation, which involved the use of green manures, gypsum and pasture for the purpose of profile recovery. The studied area is located in Mato Grosso do Sul State, Brzil. A field trial was performed following a completely randomized experimental design with seven treatments and four replications. Starting 1992, the initial treatments were: 1) control (tilled bare soil), 2)Stizolobium aterrium, 3)Cajanus cajan, 4)lime+S. aterrimum, 5) lime+C. cajan, 6) lime + gypsum + S. aterrimum, 7) lime + gypsum+C. cajan. In 1994, all treatments with C. cajan were replaced by Canavalia ensiformis and in 1999, Brachiaria decumbens was implanted in all the experimental plots. Data from vegetated treatments were compared with bare soil (control) and native vegetation (Savannah). Soil samples were collected in 2011 at the 0.00-0.10, 0.10-0.20, and 0.20-0.40 m depths. Treatment differences were assessed by analysis of variance, following the Scott-Knott test (5%) of probability to compare averages. Macroporosity of the 0.00-0.10 m top layer was above the 0.10 m3m-3 threshold considered as critical for plant growth. On the 0.10-0.20 m layer only treatments with C. cajan later on followed by C. ensiformis reached macroporosities over the 0.10 m3m-3 threshold, and on the 0.20-0.40 m no treatment was above this critical value. In spite of the positive development of macroporosity in the restored soil profile, this physical attribute was far from the typical values corresponding to local soils under native Savannah vegetation.

dos Santos Batista Bonini, Carolina; de Cássia Marchini, Débora; Alves, Marlene Cristina; García de Arruda, Otton; Paz-Ferreiro, Jorge

2013-04-01

72

Conservation in Soil of H2 Liberated from N2 Fixation by Hup- Nodules  

PubMed Central

Pigeon peas (Cajanus cajan) were grown in large soil columns (90-cm length by 30-cm diameter) and inoculated with four different strains of cowpea rhizobia, which varied with respect to hydrogen uptake activity (Hup). Despite the profuse liberation of H2 from Hup- nodules in vitro, H2 gas was not detected in any of the soil columns. When H2 was injected into the columns, the rates of consumption were highest in the treatments (including control) containing Hup- nodules (218 and 177 nmol · h?1 · cm?2) and lowest in the Hup+ treatments (158, 92, and 64 nmoles · h?1 · cm?2). In situ H2 uptake rates in small soil cores at fixed distances from the nodules decreased exponentially with distance from the nodule (R2 = 0.99). This decrease in H2 consumption was associated with a similar decrease in numbers of H2-oxidizing chemolithotrophic bacteria as determined by the most-probable-number method. On the basis of two equations derived separately upon diffusive theory (Fix's Law) and kinetic theory (Michaelis-Menten), the empirically derived rate constants and coefficients indicated that all of the H2 emitted from Hup- nodules would be consumed by H2-oxidizing bacteria within a 3- to 4.5-cm radius of the nodule surface. It is concluded that H2 is not lost from the soil-plant ecosystem during N2 fixation in C. cajan but is conserved by H2-oxidizing bacteria. PMID:16346356

La Favre, J. S.; Focht, D. D.

1983-01-01

73

Fundo Global para o Meio Ambiente  

E-print Network

#12;#12;Fundo Global para o Meio Ambiente Global Environment Facility Avaliação dos Recursos de Climáticos Center for Weather Forecasts and Climate Studies Programa das Nações Unidas para o Meio Ambiente Fernando Ramos Martins Samuel Luna de Abreu Ricardo Rüther Realização Divisão de Clima e Meio Ambiente

74

Ciudades inteligentes: beneficios para la inclusin social  

E-print Network

Ciudades inteligentes: beneficios para la inclusión social http://www.iuii.ua.es/CatedraTelefonicaUA/smart-cities Universidad de Alicante Inscripción gratuita a través del formulario http://www.iuii.ua.es/smart-cities trasladar los conceptos de Smart City al ámbito de la Universidad para lograr el objetivo de mejora de la

Escolano, Francisco

75

PROGRAMA JOVENS TALENTOS PARA A CINCIA  

E-print Network

Relações Exteriores para estrangeiros; a Carteira de Trabalho e Previdência Social; o Certificado de: máquinas calculadoras, agendas eletrônicas ou similares, telefones celulares, smartphones, tablets, ipod

Lucero, Jorge Carlos

76

Consejos para pacientes que reciben quimioterapia  

Cancer.gov

Serie de dieciocho (18) hojas sobre los efectos secundarios de la quimioterapia. Cada hoja contiene recomendaciones y sugerencias prácticas para ayudarle a controlar los efectos secundarios durante la quimioterapia, y a que se sienta mejor durante el tratamiento.

77

Consejos para pacientes que reciben radioterapia  

Cancer.gov

Serie de nueve (9) hojas sobre los efectos secundarios de la radioterapia. Cada hoja contiene recomendaciones y sugerencias prácticas para ayudarle a controlar los efectos secundarios durante la radioterapia, y a que se sienta mejor durante el tratamiento.

78

Software Libre para ensear o aprender Matemtica  

E-print Network

Software Libre para enseñar o aprender Matemática Porqué y Cómo Pablo De Nápoli pdenapo@dm.uba.ar #12;Introducción · En esta charla, presentaremos algunos de los pogramas que son software libre, que ventajas de utilizar software libre para la docencia y la investigación en matemática. #12;¿Por qué

De Nápoli, Pablo Luis

79

Tecnologa para todos Sistema Inalmbrico de Rice  

E-print Network

Tecnología para todos Sistema Inalámbrico de Rice Andrea Trevino Rice University http://www.techforall.org/tfa_wireless.html http://tfa.rice.edu #12;Por qué en Pecan Park? La Misión de TFA: Proporcionar conocimientos a la comunidad. El propósito de Rice: Usar este programa para explorar la siguiente generación del sistema

80

The ParaScope parallel programming environment  

NASA Technical Reports Server (NTRS)

The ParaScope parallel programming environment, developed to support scientific programming of shared-memory multiprocessors, includes a collection of tools that use global program analysis to help users develop and debug parallel programs. This paper focuses on ParaScope's compilation system, its parallel program editor, and its parallel debugging system. The compilation system extends the traditional single-procedure compiler by providing a mechanism for managing the compilation of complete programs. Thus, ParaScope can support both traditional single-procedure optimization and optimization across procedure boundaries. The ParaScope editor brings both compiler analysis and user expertise to bear on program parallelization. It assists the knowledgeable user by displaying and managing analysis and by providing a variety of interactive program transformations that are effective in exposing parallelism. The debugging system detects and reports timing-dependent errors, called data races, in execution of parallel programs. The system combines static analysis, program instrumentation, and run-time reporting to provide a mechanical system for isolating errors in parallel program executions. Finally, we describe a new project to extend ParaScope to support programming in FORTRAN D, a machine-independent parallel programming language intended for use with both distributed-memory and shared-memory parallel computers.

Cooper, Keith D.; Hall, Mary W.; Hood, Robert T.; Kennedy, Ken; Mckinley, Kathryn S.; Mellor-Crummey, John M.; Torczon, Linda; Warren, Scott K.

1993-01-01

81

PREPARE UN EQUIPO PORTTIL PARA EMERGENCIAS Prepare un equipo portatil para emergencias de modo que pueda  

E-print Network

libre) 2. Equipos medicos caseros (ejemplos: medidor de glucosa, monitor de presion arterial, bastonPREPARE UN EQUIPO PORTÁTIL PARA EMERGENCIAS Prepare un equipo portatil para emergencias de modo que llevar el equipo. Incluya los siguientes artículos en el equipo: 1. Medicamentos (recetados y de venta

82

MÉTODOS PARA DETERMINAÇÃO DA DENSIDADE BÁSICA DE CAVACOS PARA CONÍFERAS E FOLHOSAS  

Microsoft Academic Search

1 - INTRODUÇÃO A densidade da madeira é uma característica complexa resultante da combinação de diversos fatôres. Existem inúmeros trabalhos mostrando sua relação com as dimensões das fibras, particularmente espessura da parede, volume dos vasos e parênquimas, proporção entre madeira primaveril e outonal, e arranjo dos elementos anatômicos. Êste assunto tem sido intensivamente estudado para as coníferas, porém para as

Celso Edmundo; Bochetti Foelkel; Maria Aparecida Mourão Brasil; Luiz Ernesto; George Barrichelo

83

PROJECTO LEXNET OLHA PARA AS REDES WIRELESS  

E-print Network

PROJECTO LEXNET OLHA PARA AS REDES WIRELESS As radiações provocadas pelas redes sem fios estão. PAG. 6 #12;Radiações das redes wireless debaixo de olho O projecto europeu Lexnet tem como objectivo redes de comunicações móveis, GSM, Wi-Fi, rá- dio, sem comprometer a qualidade dos ser- viços. Tendo

Instituto de Sistemas e Robotica

84

Smartphones para cegos Uma inveno portuguesa  

E-print Network

Smartphones para cegos Uma invenção portuguesa Usar um ecrã tátil de forma discreta, sem recurso ao mentores do projeto. O Holi�raille é uma espécie de capa, acoplável à parte de trás de um smartphone e que

Instituto de Sistemas e Robotica

85

Cartilha para Legalizao de Casas Religiosas  

E-print Network

Cartilha para Legalização de Casas Religiosas de Matriz Africana #12;2 Rio de Janeiro, 30 de maio Secretaria Estadual de Assistência Social e Direitos Humanos do Rio de Janeiro. NIREMA: Núcleo Social e Direitos Humanos do Rio de Janeiro Coordenador Geral Prof. Adriano Pilatti Centro de Ciências

86

Semntica Operacional para la Programacin en Lgica  

E-print Network

sustitución tal que (A) = A Def: Sean ={ [U1, s1], ..., [Um, sm] } y = { [V1, t1], ..., [Vn, tn] } sendas sustituciones, tales que Ui Vj y Ui no aparece en tj, para todo par i, j tal que 1 i m y 1 j n. Entonces(S) ], [Y, a], [Z, T] }{ [S,W], [T, b]}= {[X, f(W)], [Y, a], [Z, b], [S,W], [T, b]} Def: Sean ={ [U1, s1

Simari, Guillermo R.

87

Semntica Operacional para la Programacin en Lgica  

E-print Network

(A) = A Def: Sean ={ [U1, s1], ..., [Um, sm] } y = { [V1, t1], ..., [Vn, tn] } sendas sustituciones, tales que Ui Vj y Ui no aparece en tj, para todo par i, j tal que 1 i m y 1 j n. Entonces, definimos la, T] }{ [S,W], [T, b]}= {[X, f(W)], [Y, a], [Z, b], [S,W], [T, b]} Def: Sean ={ [U1, s1], ..., [Um

Simari, Guillermo R.

88

Ortho-Para Hydrogen Ratiometer Design  

Microsoft Academic Search

The design and performance of a thermal conductivity gauge to measure the ratio of ortho- to para-hydrogen content is reported. The gauge employs an ultra-thin film as heater and sensor. This ratiometer has a nearly pressure-independent thermal conductivity response over a broad pressure range. The thermal conductivity of hydrogen gas and nitrogen gas have been measured and found qualitatively correct.

D. Zhou; N. S. Sullivan

2006-01-01

89

Para-hydrogen perspectives in hyperpolarized NMR.  

PubMed

The first instance of para-hydrogen induced polarization (PHIP) in an NMR experiment was serendipitously observed in the 1980s while investigating a hydrogenation reaction (Seldler et al., 1983; Bowers and Weitekamp, 1986, 1987; Eisenschmid et al., 1987) [1-4]. Remarkably a theoretical investigation of the applicability of para-hydrogen as a hyperpolarization agent was being performed in the 1980's thereby quickly providing a theoretical basis for the PHIP-effect (Bowers and Weitekamp, 1986) [2]. The discovery of signal amplification by a non-hydrogenating interaction with para-hydrogen has recently extended the interest to exploit the PHIP effect, as it enables investigation of compounds without structural alteration while retaining the advantages of spectroscopy with hyperpolarized compounds [5]. In this article we will place more emphasis of the future applications of the method while only briefly discussing the efforts that have been made in the understanding of the phenomenon and the development of the method so far. PMID:23932399

Glöggler, Stefan; Colell, Johannes; Appelt, Stephan

2013-10-01

90

TELEMEDICINA: UN DESAFÍO PARA AMÉRICA LATINA  

PubMed Central

La telemedicina es una tendencia creciente en la prestación de los servicios médicos. Aunque la eficacia de esta práctica no ha estado bien establecida, es probable que los países en desarrollo compartirán este nuevo paradigma con los desarrollados. Los defensores de la telemedicina en América Latina sostienen que será una herramienta útil para reducir las disparidades y mejorar la accesibilidad de atención de salud. Aunque América Latina quizá se convierta en un lugar para la investigación e investigación de estos procedimientos, no está claro cómo la telemedicina podría contribuir a mejorar la accesibilidad para las poblaciones desfavorecidas, o coexistir con sistemas de atención de salud públicos crónicamente enfermos. Telemedicine is a growing trend in the provision of medical services. Although the effectiveness of this practice has not been well established, it is likely that developing countries will share this new paradigm with developed ones. Supporters of telemedicine in Latin America maintain that it will be a useful tool for reducing disparities and improving health care accessibility. Although Latin America might become a place for research and investigation of these procedures, it is not clear how telemedicine could contribute to improving accessibility for disadvantaged populations, or coexist with chronically ill-funded public healthcare systems. PMID:21625326

Litewka, Sergio

2011-01-01

91

BECAS DE MASTER PARA DESARROLLAR TRABAJOS DE INVESTIGACIN EN EL  

E-print Network

10 becas para realizar masters para estudiantes de cualquier nacionalidad que sean admitidos en las.alvarez@co.ieo.es Biodiversidad y Actividad Microbiana del Ecosistema Pelágico Profundo en el Atlántico Norte Marta M. Varela

Fraguela, Basilio B.

92

Centro para la Salud Mundial (CGH) del NCI  

Cancer.gov

El Centro para la Salud Mundial (CGH) del Instituto Nacional del Cáncer coordina actividades de investigación y trabaja con socios nacionales e internacionales para comprender y enfrentar la carga que representa el cáncer a nivel mundial.

93

Planificación para la etapa final de la vida  

Cancer.gov

Información para pacientes, sus familiares y amigos sobre el cuidado del paciente terminal, la planificación para el final de la vida, y la aflicción, el duelo y manejo de la pérdida de un ser querido.

94

Gua para la Evaluacin de Riesgo Ambiental de Organismos  

E-print Network

Guía para la Evaluación de Riesgo Ambiental de Organismos Genéticamente Modificados #12;#12;Guía para la Evaluación de Riesgo Ambiental de Organismos Genéticamente Modificados #12;APOYO: © 2012 ILSI) Guia para la evaluación de riesgo ambiental de organismos genéticamente midificados / [editores] Paulo

Parrott, Wayne

95

Guia para a Avaliao do Risco Ambiental de Organismos  

E-print Network

Guia para a Avaliação do Risco Ambiental de Organismos Geneticamente Modificados 1ª Edição, São Paulo - ILSI Brasil 2012 #12;#12;Guia para a Avaliação do Risco Ambiental de Organismos Geneticamente para a Avaliação do Risco Ambiental de Organismos Geneticamente Modificados / [editores] Paulo Paes de

Parrott, Wayne

96

Protocolo de Espacios. Tutorial de estancias TUTORIAL PARA RELLENAR EL  

E-print Network

Protocolo de Espacios. Tutorial de estancias TUTORIAL PARA RELLENAR EL EXPEDIENTE ESPACIAL DE ESTANCIAS Objetivo del tutorial: Explicar paso a paso el procedimiento para realizar el expediente de estancias En este tutorial aprenderá a: ­ Seleccionar mapas de los edificios para imprimir ­ Comprobar los

Escolano, Francisco

97

Technological Foresight - Um instrumento para política científica e tecnológica1  

Microsoft Academic Search

Este texto tem por objetivo apresentar a abordagem de technological foresight2, crescentemente utilizada em vários países como instrumento para a alocação de fundos públicos de C&T, para definição de priorida- des de pesquisa e para melhorar a articulação das organizações de pes- quisa com as redes de inovação e o setor produtivo. São discutidas suas bases teóricas, suas principais características

MAURO ZACKIEWICZ; SÉRGIO SALLES-FILHO

98

Control del dolor: Apoyo para las personas con cáncer  

Cancer.gov

Contiene información sobre las medicinas contra el dolor para pacientes con cáncer, los planes para controlarlo, cómo hablar con su equipo de atención médica sobre el dolor que usted siente y qué hacer para controlar los efectos físicos y emocionales del mismo.

99

Publicaciones IFMBE - Instrucciones para los Autores en la Preparación de Artículos para el IV Congreso Latinoamericano de Ingeniería Biomédica  

Microsoft Academic Search

Este modelo presenta las instrucciones para la preparación de artículos para el CLAIB2007, basado en la serie de publicaciones del IFMBE. El mismo pretende guiar a los autores en la preparación de la versión electrónica de sus artículos. Solamente los artículos que respeten este modelo serán considerados para aceptación y publicación en los Ana- les del evento. El Abstract debe

A. B. Firstauthor; C. Coauthor

100

Semana nacional de preparacin para clima severo 2 al 8 de marzo de Manual para las redes sociales  

E-print Network

clima severo en las redes sociales. Prepararse para clima severo va más allá de proteger a su familiaSemana nacional de preparación para clima severo ­ 2 al 8 de marzo de 2014 Manual para las redes sociales Usted, también, puede ser como una fuerza de la naturaleza en su comunidad ayudando a la Agencia

101

Producing and quantifying enriched para-H2  

NASA Astrophysics Data System (ADS)

The production of enriched para-H2 is useful for many scientific applications, but the technology for producing and measuring para-H2 is not yet widespread. In this note and in the accompanying auxiliary material, we describe the design, construction, and use of a versatile standalone converter that is capable of producing para-H2 enrichments of up to ?99.99% at continuous flow rates of up to 0.4 SLM. We also discuss para-H2 storage and back conversion rates, and improvements to three techniques (thermal conductance, NMR, and solid hydrogen impurity spectroscopy) used to quantify the para-H2 enrichment.

Tom, Brian A.; Bhasker, Siddhartha; Miyamoto, Yuki; Momose, Takamasa; McCall, Benjamin J.

2009-01-01

102

Allergic contact dermatitis to para-phenylenediamine.  

PubMed

Exposure to hair dye is the most frequent route of sensitisation to para-phenylenediamine (PPD), a common contact allergen. International studies have examined the profile of PPD, but Australian-sourced information is lacking. Patients are often dissatisfied with advice to stop dyeing their hair. This study examines patients' characteristics, patch test results and outcomes of PPD allergy from a single Australian centre, through a retrospective analysis of patch test data from 2006 to 2013 at the Liverpool Hospital Dermatology Department. It reviews the science of hair dye allergy, examines alternative hair dyes and investigates strategies for hair dyeing. Of 584 patients, 11 were allergic to PPD. Our PPD allergy prevalence rate of 2% is at the lower end of international reported rates. About half these patients also react to para-toluenediamine (PTD). Affected patients experience a significant lifestyle disturbance. In all, 78% tried alternative hair dyes after the patch test diagnosis and more than half continued to dye their hair. Alternative non-PPD hair dyes are available but the marketplace can be confusing. Although some patients are able to tolerate alternative hair dyes, caution is needed as the risk of developing an allergy to other hair dye ingredients, especially PTD, is high. PMID:25302475

Jenkins, David; Chow, Elizabeth T

2015-02-01

103

Programas del NCI: Análisis molecular para la elección de tratamientos (MATCH) y MATCH para pacientes infantiles  

Cancer.gov

Información sobre el Programa de análisis molecular para la elección de tratamientos (MATCH) del NCI, el cual asignará pacientes con tumores sólidos y linfomas avanzados que hayan dejado de responder al tratamiento convencional a estudios clínicos de acuerdo con las anomalías genéticas de sus tumores.

104

Semana Nacional de Preparacin para Clima Severo 2014 Pgina 1 Plantilla para artculos de blog  

E-print Network

amenaza de clima severo. El tornado categoría EF-5 que azotó a Moore, Oklahoma el 20 de mayo fue el supervivencia. Esto es especialmente importante ante la amenaza de clima severo. Se estima que el tornado. Visite weather.gov para obtener la información más actualizada sobre las amenazas meteorológicas. Tome

105

Chapter 4: PARAS Microkernel at a Glance 1 PARAS Microkernel at a Glance  

E-print Network

current ones) to manage its resources. To meet this requirement, we have developed an OS kernel called-of-the-art microkernel technology. It supports most essential services such as process, memory, and interprocess communication management. In the design of the PARAS microkernel, we have adopted the philosophy of migrating

Melbourne, University of

106

Controlling External Parasites CeCarter\\FactSheets\\ExParas.indd ExParas.pdf  

E-print Network

, or manure ­ or in wet areas such as a muddy area around a water tub. Good stable management practices canParas.pdf Revised 2009-11 by removing places where larva can grow. Drain any muddy areas; clean up any spilled feed is important. Make sure the shelter is kept clean, and consider adding a walk through barrier such as hanging

New Hampshire, University of

107

Más para ellas - Sugerencias para cerrar la brecha entre géneros en las regiones en desarrollo  

Microsoft Academic Search

Según el pensamiento convencional, la salud y la educación son factores esenciales para el desarrollo económico y social: permiten mejorar la distribución del ingreso y la productividad, y además, los más beneficiados son los pobres. Sin embargo, en muchas regiones del mundo no todos los miembros de la sociedad reciben estos servicios equitativamente. En muchos casos las mujeres están excluidas

Alessandro Magnoli

2005-01-01

108

Potencial de las comarcas aragonesas para la localización industrial. Implicaciones para las autoridades públicas  

Microsoft Academic Search

RESUMEN Para que las empresas puedan desarrollar favorablemente sus actividades manufactureras, logísticas o de cualquier otra índole, es necesario que el espacio físico en el que se van a desarrollar disponga, de la infraestructura básica que las organizaciones demandan y que afectan no sólo al suelo industrial sino a las instalaciones que los propios polígonos les facilitan. El objetivo de

Lucía Isabel García Cebrián; Antonio Muñoz Porcar

2010-01-01

109

Amelioration of galactosamine-induced nephrotoxicity by a protein isolated from the leaves of the herb, Cajanus indicus L  

Microsoft Academic Search

BACKGROUND: Galactosamine (GalN), an established experimental toxin, mainly causes liver injury via the generation of free radicals and depletion of UTP nucleotides. Renal failure is often associated with end stage liver damage. GalN intoxication also induces renal dysfunction in connection with hepatic disorders. Present study was designed to find out the effect of a protein isolated from the leaves of

Mahua Sinha; Prasenjit Manna; Parames C Sil

2007-01-01

110

PLAN ARGENTINA INNOVADORA 2020 Temas estratgicos para convocatorias 2014  

E-print Network

abiótico. Producción de germoplasma de calidad para diferentes usos/servicios ambientales. Productos por capa. Control bacteriano en fondo de pozo para la reducción de la producción de sulfhídrico componentes electrónicos y microelectrónicos. Sistemas de automatización y control para procesos industriales

Santos, Juan

111

Ortho and Para Molecules of Water in Electric Field  

E-print Network

Stark effect is calculated by the perturbation theory method separately for the ortho and para water molecules. At room temperature, a 30%-difference in the energy change is found for the two species put in electric field. This implies a sorting of the ortho and para water molecules in non-uniform electric fields. The ortho/para water separation is suggested to occur in the course of steam sorption on a solid surface and of large-scale atmospheric processes.

S. N. Andreev; V. P. Makarov; V. I. Tikhonov; A. A. Volkov

2007-03-04

112

On Lightlike Geometry of Para-Sasakian Manifolds  

PubMed Central

We study lightlike hypersurfaces of para-Sasakian manifolds tangent to the characteristic vector field. In particular, we define invariant lightlike hypersurfaces and screen semi-invariant lightlike hypersurfaces, respectively, and give examples. Integrability conditions for the distributions on a screen semi-invariant lightlike hypersurface of para-Sasakian manifolds are investigated. We obtain a para-Sasakian structure on the leaves of an integrable distribution of a screen semi-invariant lightlike hypersurface. PMID:24892072

Acet, Bilal Eftal; K?l?ç, Erol

2014-01-01

113

Algoritmo genetico para la Descomposicion de Minkowski de poligonos convexos  

E-print Network

Algoritmo gen´etico para la Descomposici´on de Minkowski de pol´igonos convexos Edilma O´i presentamos un algoritmo gen´etico para el problema. 1 Introducci´on En diversas disciplinas actuales como rob´i presentamos una propuesta usando Algoritmos Gen´eticos, para resolver el problema de la de- scomposici´on de

Llanos, Diego R.

114

Estrategias cognitivo-conductuales para el manejo del craving  

Microsoft Academic Search

En el presente trabajo se revisaron los aspectos genera- les del craving y se destacó su importancia para la adhe- rencia al tratamiento en adicciones. De igual manera se revisaron las diferentes estrategias cognitivo-conductua- les para el manejo del craving, las cuales incluían: detención del pensamiento, técnicas de distracción, con- trol y programación de actividades, entrenamiento en relajación, técnicas de

Iván González Salazar

2004-01-01

115

Elementos para una estrategia de desarrollo industrial en el Perú  

Microsoft Academic Search

El objetivo de este trabajo es discutir las propuestas de desarrollo industrial existentes para el caso peruano. Esta discusión se ha1la a la luz de las experiencias de industrialización seguidas por los países en desarrollo, a fin de identificar los elementos cruciales para el diseño de una estrategia de desarrollo industrial de largo plazo.

Rodolfo Cermeño

1989-01-01

116

JavaLog: Un Lenguaje para la Programacion de Agentes  

Microsoft Academic Search

Resumen La programación de sistemas multi-agentes ha sido generalmente soportada por le nguajes orientados a objetos o lenguajes lógicos. Ambos paradigmas muestran poseer características para soportar parcialmente el desarrollo de agentes. Sin embargo, si ambos paradigmas son integrados, una solución a la programación de agentes aparece en forma evidente. En este artículo, un lenguaje multi-paradigma para la programación de agentes

Alejandro Zunino; Luis Berdún; Analía Amandi

2001-01-01

117

Identificador : 987811692 IMPRESO SOLICITUD PARA VERIFICACIN DE TITULOS OFICIALES  

E-print Network

UNIVERSIDAD SOLICITANTE CENTRO CÓDIGO CENTRO Universidad de A Coruña Escuela Universitaria de Arquitectura A Coruña RAMA DE CONOCIMIENTO Ingeniería y Arquitectura CONJUNTO CONVENIO No HABILITA PARA EL EJERCICIO DE ISCED 2 Ingeniería y Arquitectura Construcción e ingeniería civil Arquitectura y urbanismo HABILITA PARA

Fraguela, Basilio B.

118

Sistemas de Informao para a Web: Arquitecturas Aplicacionais  

E-print Network

1 Sistemas de Informação para a Web: Arquitecturas Aplicacionais Alberto Silva IST/INESC Rua Alves arquitecturas de sistemas de informação para a Web, designadamente baseadas em actividades computacionais (1. 1.1 Palavras-chave Web, Arquitecturas de Sistemas de Informação, SIW, CGI, SSI, Java, ORB. 2

da Silva, Alberto Rodrigues

119

Uma Proposta de Modelo para Objetos de Aprendizagem  

Microsoft Academic Search

Resumo. Algumas políticas públicas têm impulsionado o desenvolvimento de material digital para uso como recurso no processo de ensino e aprendizagem, incentivando o surgimento de várias equipes, cujos produtos desenvolvidos tendem a se concentrar em repositórios para que sejam acessíveis ao públicoalvo. Muitas vezes o entendim ento de quais elementos devem estar presentes num objeto varia entre as equipes, dificultando

Santos Rosa; Rogério Avellar Cordeiro; Darcy Ribeiro

120

Mundos Virtuales para la Enseñanza a través de Internet  

Microsoft Academic Search

Resumen— La aplicación de los mundos virtuales para la docencia a través de Internet hacen que el alumno pueda sumergirse en ambientes amigables que hacen más ameno el aprendizaje. Este artículo presenta tres aplicaciones docentes desarrolladas en estos entornos. La primera de ellas, para la enseñanza del vocabulario, muestra un conjunto de mundos virtuales diseñados en VRML en los que

Inmaculada Remolar; Miguel Chover; Óscar Belmonte; Cristina Rebollo; Celso Campos

121

Evolucin de Funciones de Densidad de Probabilidad para Optimizacin Continua  

E-print Network

Evolución de Funciones de Densidad de Probabilidad para Optimización Continua Jorge Casillas y algoritmo está basado en la evolución de funciones de densidad de probabilidad para adaptarse a las zonas. Palabras clave -- optimización continua, funciones de densidad de probabilidad, estimación de

Casillas Barranquero, Jorge

122

Gua rpida para la solicitud de una accin Marie Curie  

E-print Network

Guía rápida para la solicitud de una acción Marie Curie Fellowship Subdirección General de ser considerado elegible para la solicitud de una Marie Curie Fellowship existen tres tipos de el proyecto Marie Curie a iniciar el doctorado. #12;¿Existen requisitos según mi nacionalidad? Las

Escolano, Francisco

123

Reitor da Universidade de Lisboa reclama "medidas urgentes" para  

E-print Network

Reitor da Universidade de Lisboa reclama "medidas urgentes" para ensino superior António Cruz Serra pública, para que as universidades ganhem "mais autonomia administrativa e financeira" O novo reitor da Universidade de Lisboa (UL), resultante da fusão entre a Clássica e a Técnica, falou hoje na necessidade de

Instituto de Sistemas e Robotica

124

Creciendo Juntos Plan de la Universidad de Columbia para  

E-print Network

reubicación y reconstrucción de utilidades para sustituir alcantarillado y tuberías de agua y otros servicios a un ya existente regulador del alcantarillado en la avenida 12th. Columbia adjudicó este contrato para

Hone, James

125

Astronaut Walter Schirra during water egress para-drop training  

NASA Technical Reports Server (NTRS)

Astronaut Walter M. Schirra Jr., the Gemini-Titan 3 backup crew command pilot, is shown during water egress para-drop training activity in nearby Galveston Bay (10171); Schirra is shown in the water with his parachute crumpling during water egress para-drop training (10172); Schirra is retrieved from Galveston Bay by divers during water egress training (10173).

1965-01-01

126

Cooling by Para-to-Ortho-Hydrogen Conversion  

NASA Technical Reports Server (NTRS)

Catalyst speeds conversion, increasing capacity of solid hydrogen cooling system. In radial-flow catalytic converter, para-hydrogen is converted to equilibrium mixture of para-hydrogen and ortho-hydrogen as it passes through porous cylinder of catalyst. Addition of catalyst increases capacity of hydrogen sublimation cooling systems for radiation detectors.

Sherman, A.; Nast, T.

1983-01-01

127

LA LECTURA PARA LOS PROFESIONALES UNIVERSITARIOS. REFLEXIONES METODOLÓGICAS  

Microsoft Academic Search

La enseñanza de las matemáticas es actualmente de gran interés para los actores responsables del acto educativo, ya que los propósitos se entienden diferente para alumnos y profesores. Tal situación ha llevado a los matemáticos educativos y otros investigadores a indagar sobre las creencias y actitudes de estudiantes y docentes de matemáticas y su influencia en el logro académico. Las

Maritza Batista Batista

2011-01-01

128

Towards a double field theory on para-Hermitian manifolds  

SciTech Connect

In a previous paper, we have shown that the geometry of double field theory has a natural interpretation on flat para-Kähler manifolds. In this paper, we show that the same geometric constructions can be made on any para-Hermitian manifold. The field is interpreted as a compatible (pseudo-)Riemannian metric. The tangent bundle of the manifold has a natural, metric-compatible bracket that extends the C-bracket of double field theory. In the para-Kähler case, this bracket is equal to the sum of the Courant brackets of the two Lagrangian foliations of the manifold. Then, we define a canonical connection and an action of the field that correspond to similar objects of double field theory. Another section is devoted to the Marsden-Weinstein reduction in double field theory on para-Hermitian manifolds. Finally, we give examples of fields on some well-known para-Hermitian manifolds.

Vaisman, Izu [Department of Mathematics, University of Haifa, Haifa (Israel)] [Department of Mathematics, University of Haifa, Haifa (Israel)

2013-12-15

129

Towards a double field theory on para-Hermitian manifolds  

NASA Astrophysics Data System (ADS)

In a previous paper, we have shown that the geometry of double field theory has a natural interpretation on flat para-Kähler manifolds. In this paper, we show that the same geometric constructions can be made on any para-Hermitian manifold. The field is interpreted as a compatible (pseudo-)Riemannian metric. The tangent bundle of the manifold has a natural, metric-compatible bracket that extends the C-bracket of double field theory. In the para-Kähler case, this bracket is equal to the sum of the Courant brackets of the two Lagrangian foliations of the manifold. Then, we define a canonical connection and an action of the field that correspond to similar objects of double field theory. Another section is devoted to the Marsden-Weinstein reduction in double field theory on para-Hermitian manifolds. Finally, we give examples of fields on some well-known para-Hermitian manifolds.

Vaisman, Izu

2013-12-01

130

¿Son las políticas locales una buena estrategia para dinamizar el mercado de trabajo? Algunos elementos para el caso colombiano  

Microsoft Academic Search

Resumen: En períodos de bajo crecimiento económico, tiempos de recesión o crisis económica, implementar una política fiscal contra-cíclica puede ser una herramienta fundamental para crear empleo y dinamizar la economía. En Colombia, específicamente en las principales ciudades del país existe una posibilidad concreta para que los gobiernos locales, a través de incrementos del gasto de inversión, impacten positivamente en la

Diana Galvis G; Mauricio López Gonzalez

2010-01-01

131

Dissociative recombination of highly enriched para-H3+  

NASA Astrophysics Data System (ADS)

The determination of the dissociative recombination rate coefficient of H3+ has had a turbulent history, but both experiment and theory have recently converged to a common value. Despite this convergence, it has not been clear if there should be a difference between the rate coefficients for ortho-H3+ and para-H3+. A difference has been predicted theoretically and could conceivably impact the ortho:para ratio of H3+ in the diffuse interstellar medium, where H3+ has been widely observed. We present the results of an experiment at the CRYRING ion storage ring in which we investigated the dissociative recombination of highly enriched (˜83.6%) para-H3+ using a supersonic expansion source that produced ions with Trot˜60-100 K. We observed an increase in the low energy recombination rate coefficient of the enriched para-H3+ by a factor of ˜1.25 in comparison to H3+ produced from normal H2 (ortho:para=3:1). The ratio of the rate coefficients of pure para-H3+ to that of pure ortho-H3+ is inferred to be ˜2 at low collision energies; the corresponding ratio of the thermal rate coefficients is ˜1.5 at electron temperatures from 60 to 1000 K. We conclude that this difference is unlikely to have an impact on the interstellar ortho:para ratio of H3+.

Tom, Brian A.; Zhaunerchyk, Vitali; Wiczer, Michael B.; Mills, Andrew A.; Crabtree, Kyle N.; Kaminska, Magdalena; Geppert, Wolf D.; Hamberg, Mathias; af Ugglas, Magnus; Vigren, Erik; van der Zande, Wim J.; Larsson, Mats; Thomas, Richard D.; McCall, Benjamin J.

2009-01-01

132

Construction of a Para-Ortho Hydrogen Test Cryostat  

NASA Astrophysics Data System (ADS)

In a prospective hydrogen economy it is necessary to verify the para concentration of the employed hydrogen. In case of a short storage time of about a few days only it has been shown that a partial conversion into para-hydrogen gives an optimized overall efficiency. Hence, an easy and reliable method of measuring the para-hydrogen concentration is needed. In this paper, the concept and construction of a small test cryostat are described and first results are presented. The measuring principle is based on a catalytic induced adiabatic ortho-para conversion of a hydrogen gas flow starting from a known temperature. The operation of the system only requires a certain amount of liquid nitrogen as coolant. To determine the concentration of para-hydrogen it is only necessary to measure the temperature of the gas before and after the adiabatic catalyst cell. The measuring cryostat is used for further investigation of the spontaneous para-ortho conversion in the supercritical state. In addition, the design of the cryostat allows the investigation of different catalyst materials regarding the catalytic activity and possible degradation by using a known para concentration for the measurement.

Essler, J.; Haberstroh, Ch.

2010-04-01

133

Influence of size effects on para-dichlorobenzene lattice dynamics  

NASA Astrophysics Data System (ADS)

We have obtained experimental low-frequency Raman spectra for light scattering by nanoparticles of para-dichlorobenzene of size ˜300-70 nm. As their sizes decrease, the line frequencies decrease. The size of the nanoparticles was determined using an electron microscope. We found that in the lattice vibrational spectrum of nanoparticles of size 300-70 nm, a summed spectrum appears from ?- para-dichlorobenzene and ?- para-ichlorobenzene. This is consistent with molecular dynamics calculations of the structure of the nanoparticle and calculations of the histograms for the lattice vibrational spectra by the Dean method.

Korshunov, M. A.

2010-05-01

134

Kinetics and mechanism of benzyl para -chlorophenyl ketone oxidation  

Microsoft Academic Search

The oxidation of benzyl para-chlorophenyl ketone in chlorobenzene at 100C occurs through the formation of short chains. Non-peroxide reaction products\\u000a (1-(4-chlorophenyl)-2-hydroxy-2-phenyl-1-ethanone, para-chlorobenzyl, benzaldehyde, and para-chlorobenzoic acid) are formed not only by the transformation of hydroperoxide (1-(4-chlorophenyl)-2-hydroxy-2-phenyl-1-ethanone)\\u000a but also (or solely) through the recombination of ?-ketoperoxyl radicals with or without chain termination. ?-Hydroperoxide\\u000a decomposes predominantly through a heterolytic route to form

O. A. Revkov; S. G. Voronina; A. L. Perkel’

2007-01-01

135

Siderophore as a potential plant growth-promoting agent produced by Pseudomonas aeruginosa JAS-25.  

PubMed

Siderophores scavenges Fe(+3) from the vicinity of the roots of plants, and thus limit the amount of iron required for the growth of pathogens such as Fusarium oxysporum, Pythium ultimum, and Fusarium udum, which cause wilt and root rot disease in crops. The ability of Pseudomonas to grow and to produce siderophore depends upon the iron content, pH, and temperature. Maximum yield of siderophore of 130 ?M was observed at pH 7.0 ± 0.2 and temperature of 30 °C at 30 h. The threshold level of iron was 50 ?M, which increases up to 150 ?M, favoring growth but drastically affecting the production of siderophore by Pseudomonas aeruginosa JAS-25. The seeds of agricultural crops like Cicer arietinum (chick pea), Cajanus cajan (pigeon pea), and Arachis hypogaea (ground nut) were treated with P. aeruginosa JAS-25, which enhanced the seed germination, root length, shoot length, and dry weight of chick pea, pigeon pea, and ground nut plants under pot studies. The efficient growth of the plants was not only due to the biocontrol activity of the siderophore produced by P. aeruginosa JAS-25 but also may be by the production of indole acetic acid (IAA), which influences the growth of the plants as phytohormones. PMID:25062779

Sulochana, M B; Jayachandra, S Y; Kumar, S Anil; Parameshwar, A B; Reddy, K Mohan; Dayanand, A

2014-09-01

136

Soil Organic Matter Quality of an Oxisol Affected by Plant Residues and Crop Sequence under No-Tillage  

NASA Astrophysics Data System (ADS)

Plant residues are considered the primarily resource for soil organic matter (SOM) formation and the amounts and properties of plant litter are important controlling factors for the SOM quality. We determined the amounts, quality and decomposition rate of plant residues and the effects of summer and winter crop sequences on soil organic C (TOC) content, both particulate organic C (POC) and mineral-associated organic C (MOC) pools and humic substances in a Brazilian Rhodic Eutrudox soil under a no-tillage system. The organic C analysis in specifics pools used in this study was effective and should be adopted in tropical climates to evaluate the soil quality and the sustainability of various cropping systems. Continuous growth of soybean (Glycine max L. Merrill) on summer provided higher contents of soil POC and continuous growth of maize (Zea mays L.) provided higher soil humic acid and MOC contents. Summer soybean-maize rotation provided the higher plant diversity, which likely improved the soil microbial activity and the soil organic C consumption. The winter sunn hemp (Crotalaria juncea L.), pigeon pea (Cajanus cajan (L.) Millsp), oilseed radish (Raphanus sativus L.) and pearl millet (Pennisetum americanum (L.) Leeke) enhanced the soil MOC, a finding that is attributable to the higher N content of the crop residue. Sunn hemp and pigeon pea provided the higher soil POC content. Sunn hemp showed better performance and positive effects on the SOM quality, making it a suitable winter crop choice for tropical conditions with a warm and dry winter.

Cora, Jose; Marcelo, Adolfo

2013-04-01

137

Emaravirus: a novel genus of multipartite, negative strand RNA plant viruses.  

PubMed

Ringspot symptoms in European mountain ash (Sorbus aucuparia L.), fig mosaic, rose rosette, raspberry leaf blotch, pigeonpea sterility mosaic (Cajanus cajan) and High Plains disease of maize and wheat were found to be associated with viruses that share several characteristics. They all have single-stranded multipartite RNA genomes of negative orientation. In some cases, double membrane-bound virus-like particles of 80 to 200 nm in diameter were found in infected tissue. Furthermore, at least five of these viruses were shown to be vectored by eriophyid mites. Sequences of European mountain ash ringspot-associated virus (EMARaV), Fig mosaic virus (FMV), rose rosette virus (RRV), raspberry leaf blotch virus (RLBV), pigeonpea sterility mosaic virus and High Plains virus strongly support their potential phylogenetic relationship. Therefore, after characterization of EMARaV, the novel genus Emaravirus was established, and FMV was the second virus species assigned to this genus. The recently sequenced RRV and RLBV are supposed to be additional members of this new group of plant RNA viruses. PMID:23170170

Mielke-Ehret, Nicole; Mühlbach, Hans-Peter

2012-09-01

138

Successive Use of Non-Host Plant Proteinase Inhibitors Required for Effective Inhibition of Helicoverpa armigera Gut Proteinases and Larval Growth1  

PubMed Central

We report on the efficacy of proteinase inhibitors (PIs) from three host plants (chickpea [Cicer arietinum], pigeonpea [Cajanus cajan], and cotton [Gossypium arboreum]) and three non-host (groundnut [Arachis hypogea], winged bean [Psophocarpus tetragonolobus], and potato [Solanum tuberosum]) in retarding the growth of Helicoverpa armigera larvae, a devastating pest of important crop plants. Enzyme assays and electrophoretic analysis of interaction of H. armigera gut proteinases (HGPs) with PIs revealed that non-host PIs inhibited HGP activity efficiently whereas host PIs were ineffective. In the electrophoretic assay, trypsin inhibitor activity bands were detected in all of the host and non-host plants, but HGP inhibitor activity bands were present only in non-host plants (except cotton in the host plant group). H. armigera larvae reared on a diet containing non-host PIs showed growth retardation, a reduction in total and trypsin-like proteinase activity, and the production of inhibitor-insensitive proteinases. Electrophoretic analysis of PI-induced HGP showed differential regulation of proteinase isoforms. Interestingly, HGP activity induced in response to dietary potato PI-II was inhibited by winged bean PIs. The optimized combination of potato PI-II and winged bean PIs identified in the present study and their proposed successive use has potential in developing H. armigera-resistant transgenic plants. PMID:10517841

Harsulkar, Abhay M.; Giri, Ashok P.; Patankar, Aparna G.; Gupta, Vidya S.; Sainani, Mohini N.; Ranjekar, Prabhakar K.; Deshpande, Vasanti V.

1999-01-01

139

Effect of various domestic processing and cooking methods on phytic acid and HCl-extractability of calcium, phosphorus and iron of pigeon pea.  

PubMed

Manak, the high yielding cultivator of pigeon pea (Cajanus cajan) released by (International Crop Research Institute for Semi-Arid Tropics) ICRISAT, India was subjected to various domestic processing and cooking methods viz., soaking (6, 12 and 18 h, 30 degrees C), soaking and dehulling, ordinary cooking, pressure cooking and germination (24, 36 and 48 h, 30 degrees C). The unprocessed seeds of this variety contained considerable amounts of phytic acid i.e. 917 mg per 100 g. This antinutrient was reduced significantly (P < 0.05) to varying extents (4-37%) in the processed samples. Except soaking and dehulling, the remaining processing and cooking methods did not lower the contents of total calcium, phosphorus and iron. That HCl-extractability of these dietary essential minerals, an index of their bioavailability, enhanced significantly when the pigeon pea seeds were processed and cooked, may be due to reduction in phytate content, which is known to chelate the minerals. A significant and negative correlation between the phytic acid and HCl-extractability of minerals further strengthens our findings. PMID:10561865

Duhan, A; Khetarpaul, N; Bishnoi, S

1999-01-01

140

Assessment of flubendiamide residues in pigeon pea in different agro-climatic zones of India.  

PubMed

Supervised field trials were conducted at the research farms of four agricultural universities located at different agro-climatic zones of India to find out the harvest time residues of flubendiamide and its des-iodo metabolite on pigeon pea (Cajanus cajan) during the year 2006-2007. Two spray applications of flubendiamide 20 WDG at 50 g (T(1)) and 100 g (T(2)) a.i./ha were given to the crop at 15-days interval. The foliage samples at different time intervals were drawn at only one location, however, the harvest time samples of pigeon pea grain, shell, and straw were drawn at all the four locations. The residues were estimated by HPLC coupled with UV-VIS variable detector. No residues of flubendiamide and its des-iodo metabolite were found at harvest of the crop at or above the LOQ level of 0.05 ?g/g. On the basis of the data generated, a pre-harvest interval (PHI) of 28 days has been recommended and the flubendiamide 20 WDG has been registered for use on pigeon pea by Central Insecticide Board and Registration Committee, Ministry of Agriculture, Government of India and the MRL has been fixed by Ministry of Health and Family Welfare, Government of India under Prevention of Food and Adulteration as 0.05 ?g/g on pigeon pea grains. PMID:21811770

Kale, V D; Walunj, A R; Battu, R S; Sahoo, Sanjay K; Singh, Balwinder; Paramasivam, M; Roy, Sankhajit; Banerjee, Tirthankar; Banerjee, Hemanta; Rao, Cherukuri Sreenivasa; Reddy, D Jagdishwar; Reddy, K Narasimha; Reddy, C Narendra; Tripathy, Vandana; Jaya, Maisnam; Pant, Shashi; Gupta, Monika; Singh, Geeta; Sharma, K K

2012-07-01

141

Regulation of Population Densities of Heterodera cajani and Other Plant-Parasitic Nematodes by Crop Rotations on Vertisols, in Semi-Arid Tropical Production Systems in India  

PubMed Central

The significance of double crop (intercrop and sequential crop), single crop (rainy season crop fallow from June to September), and rotations on densities of Heterodera cajani, Helicotylenchus retusus, and Rotylenchulus reniformis was studied on Vertisol (Typic Pellusterts) between 1987 and 1993. Cowpea (Vigna sinensis), mungbean (Phaseolus aureus), and pigeonpea (Cajanus cajan) greatly increased the population densities of H. cajani and suppressed the population densities of other plant-parasitic nematodes. Mean population densities of H. cajani were about 8 times lower in single crop systems than in double crop systems, with pigeonpea as a component intercrop. Plots planted to sorghum, safflower, and chickpea in the preceding year contained fewer H. cajani eggs and juveniles than did plots previously planted to pigeonpea, cowpea, or mungbean. Continuous cropping of sorghum in the rainy season and safflower in the post-rainy season markedly reduced the population density of H. cajani. Sorghum, safflower, and chickpea favored increased population densities of H. retusus. Adding cowpea to the system resulted in a significant increase in the densities of R. reniformis. Mean densities of total plant-parasitic nematodes were three times greater in double crop systems, with pigeonpea as a component intercrop than in single crop systems with rainy season fallow component. Cropping systems had a regulatory effect on the nematode populations and could be an effective nematode management tactic. Intercropping of sorghum with H. cajani tolerant pigeonpea could be effective in increasing the productivity of traditional production systems in H. cajani infested regions. PMID:19277141

Sharma, S. B.; Rego, T. J.; Mohiuddin, M.; Rao, V. N.

1996-01-01

142

Effects of DDT on the growth of crop plants.  

PubMed

The effects of DDT on the germination and growth of plants were studied using many crop species. Of the species tested, oil-rich seeds of plants, such as peanut (Arachis hypogaea) and mustard (Brassica juncea), were more prone to DDT induced inhibition of germination and subsequent plant growth than cereals, pulses and fibre crops, like rice (Oryza sativa), barley (Hordeum vulgare), mung bean Vigna radiata), pigeon pea (Cajanus cajan) and cotton (Gossypium hirsutum). Studies with (14)C labelled DDT showed that insecticide uptake by seeds was directly proportional to seed size. However, there was no direct relationship between DDT uptake by the seeds and its subsequent translocation to the growing regions or the degree of growth inhibition. Data suggest that oil content of the seeds per se has a bearing on the susceptibility or tolerance of a plant to DDT. It is suggested that lipids of the plant cell solubilize and disperse DDT in the cytoplasm, which, in turn, affects normal metabolism within the cell. PMID:15092369

Mitra, J; Raghu, K

1989-01-01

143

Transformation of pWWO in Rhizobium leguminosarum DPT to Engineer Toluene Degrading Ability for Rhizoremediation.  

PubMed

Rhizoremediation of organic xenobiotics is based on interactions between plants and their associated micro-organisms. The present work was designed to engineer a bacterial system having toluene degradation ability along with plant growth promoting characteristics for effective rhizoremediation. pWWO harboring the genes responsible for toluene breakdown was isolated from Pseudomonas putida MTCC 979 and successfully transformed in Rhizobium DPT. This resulted in a bacterial strain (DPT(T)) which had the ability to degrade toluene as well as enhance growth of host plant. The frequency of transformation was recorded 5.7 × 10(-6). DPT produced IAA, siderophore, chitinase, HCN, ACC deaminase, solubilized inorganic phosphate, fixed atmospheric nitrogen and inhibited the growth of Fusarium oxysporum and Macrophomina phaseolina in vitro. During pot assay, 50 ppm toluene in soil was found to inhibit the germination of Cajanus cajan seeds. However when the seeds bacterized with toluene degrading P. putida or R. leguminosarum DPT were sown in pots, again no germination was observed. Non-bacterized as well as bacterized seeds germinated successfully in toluene free soil as control. The results forced for an alternative mode of application of bacteria for rhizoremediation purpose. Hence bacterial suspension was mixed with soil having 50 ppm of toluene. Germination index in DPT treated soil was 100% while in P. putida it was 50%. Untreated soil with toluene restricted the seeds to germinate. PMID:23729882

Goel, Garima; Pandey, Piyush; Sood, Anchal; Bisht, Sandeep; Maheshwari, D K; Sharma, G D

2012-06-01

144

Temporal and spatial changes in phenolic compounds in response to Fusarium wilt in chickpea and pigeonpea.  

PubMed

Plant phenolic compounds are known to play an important role in innate plant defense and are reported to show temporal and spatial changes in response to abiotic and biotic stress including invading pathogens. In the present study, spatial and temporal variations in phenolic compounds in response to infection by wilt pathogen, Fusarium oxysporum f. sp. ciceri (Foc) and Fusarium udum (Fud) were studied in wilt resistant and wilt susceptible cultivars of chickpea (Cicer arietinum L.) and pigeonpea (Cajanus cajan L. Millspaugh) (i) before the onset of wilt infection (S1 stage; 7 Days after sowing (DAS)), (ii) after the onset of wilt infection (S2 stage; 15 DAS) and (iii) at severe disease stage (S3 stage; 30 DAS), respectively and analyzed for association of total phenol with disease reaction. Under un—inoculated condition, maximum phenol content (21.8 mg gdw—1) was found in wilt resistant cultivars and minimum (16.5 mg gdw—1) in susceptible lines of chickpea. Wilt resistant cultivars of chickpea showed two fold increase in total phenolic content at the onset of infection. In case of pigeonpea, roots of resistant cultivars showed 2.27 fold increase in phenolics, but the increase was marginal in susceptible cultivars. In the present study, interaction between Fusarium and host plants was found to enhance defense responses against wilt disease in resistant cultivars of chickpea and pigeonpea. PMID:23273197

Datta, J; Lal, N

2012-01-01

145

Late Embryogenesis Abundant (LEA) proteins in legumes  

PubMed Central

Plants are exposed to different external conditions that affect growth, development, and productivity. Water deficit is one of these adverse conditions caused by drought, salinity, and extreme temperatures. Plants have developed different responses to prevent, ameliorate or repair the damage inflicted by these stressful environments. One of these responses is the activation of a set of genes encoding a group of hydrophilic proteins that typically accumulate to high levels during seed dehydration, at the last stage of embryogenesis, hence named Late Embryogenesis Abundant (LEA) proteins. LEA proteins also accumulate in response to water limitation in vegetative tissues, and have been classified in seven groups based on their amino acid sequence similarity and on the presence of distinctive conserved motifs. These proteins are widely distributed in the plant kingdom, from ferns to angiosperms, suggesting a relevant role in the plant response to this unfavorable environmental condition. In this review, we analyzed the LEA proteins from those legumes whose complete genomes have been sequenced such as Phaseolus vulgaris, Glycine max, Medicago truncatula, Lotus japonicus, Cajanus cajan, and Cicer arietinum. Considering their distinctive motifs, LEA proteins from the different groups were identified, and their sequence analysis allowed the recognition of novel legume specific motifs. Moreover, we compile their transcript accumulation patterns based on publicly available data. In spite of the limited information on these proteins in legumes, the analysis and data compiled here confirm the high correlation between their accumulation and water deficit, reinforcing their functional relevance under this detrimental conditions. PMID:23805145

Battaglia, Marina; Covarrubias, Alejandra A.

2013-01-01

146

Conversion of cassava wastes for biofertilizer production using phosphate solubilizing fungi.  

PubMed

Two fungi characterized as Aspergillus fumigatus and Aspergillus niger, isolated from decaying cassava peels were used to convert cassava wastes by the semi-solid fermentation technique to phosphate biofertilizer. The isolates solubilized Ca(3)(PO(4))(2), AlPO(4) and FePO(4) in liquid Pikovskaya medium, a process that was accompanied by acid production. Medium for the SSF fermentation was composed of 1% raw cassava starch and 3% poultry droppings as nutrients and 96% ground (0.5-1.5mm) dried cassava peels as carrier material. During the 14days fermentation, both test organisms increased in biomass in this medium as indicated by increases in phosphatase activity and drop in pH. Ground cassava peels satisfied many properties required of carrier material particularly in respect of the organisms under study. Biofertilizer produced using A. niger significantly (p<.05) improved the growth of pigeon pea [Cajanus cajan (L.) Millsp.] in pot experiments but product made with A. fumigatus did not. PMID:20138509

Ogbo, Frank C

2010-06-01

147

Emaravirus: A Novel Genus of Multipartite, Negative Strand RNA Plant Viruses  

PubMed Central

Ringspot symptoms in European mountain ash (Sorbus aucuparia L.), fig mosaic, rose rosette, raspberry leaf blotch, pigeonpea sterility mosaic (Cajanus cajan) and High Plains disease of maize and wheat were found to be associated with viruses that share several characteristics. They all have single-stranded multipartite RNA genomes of negative orientation. In some cases, double membrane-bound virus-like particles of 80 to 200 nm in diameter were found in infected tissue. Furthermore, at least five of these viruses were shown to be vectored by eriophyid mites. Sequences of European mountain ash ringspot-associated virus (EMARaV), Fig mosaic virus (FMV), rose rosette virus (RRV), raspberry leaf blotch virus (RLBV), pigeonpea sterility mosaic virus and High Plains virus strongly support their potential phylogenetic relationship. Therefore, after characterization of EMARaV, the novel genus Emaravirus was established, and FMV was the second virus species assigned to this genus. The recently sequenced RRV and RLBV are supposed to be additional members of this new group of plant RNA viruses. PMID:23170170

Mielke-Ehret, Nicole; Mühlbach, Hans-Peter

2012-01-01

148

Vibronic Spectroscopy of a Nitrile/Isonitrile Isoelectronic Pair: para-Diisocyanobenzene and para-Isocyanobenzonitrile.  

PubMed

The ultraviolet spectroscopy of isoelectronic pair para-diisocyanobenzene (pDIB) and para-isocyanobenzonitrile (pIBN) has been studied under gas-phase, jet-cooled conditions. These molecules complete a sequence of mono and disubstituted nitrile/isonitrile benzene derivatives, enabling a comparison of the electronic effects of such substitution. Utilizing laser-induced fluorescence (LIF) and resonant two-photon ionization (R2PI) spectroscopy, the S0-S1 electronic origins of pDIB and pIBN have been identified at 35?566 and 35?443 cm(-1), respectively. In pDIB, the S0-S1 origin is very weak, with b3g fundamentals induced by vibronic coupling to the S2 state dominating the spectrum at 501 cm(-1) (?17, isocyano bend) and 650 cm(-1) (?16, ring distortion). The spectrum extends over 5000 cm(-1), remaining sharp and relatively uncongested over much of this range. Dispersed fluorescence (DFL) spectra confirm the dominating role played by vibronic coupling and identify Franck-Condon active ring modes built off the vibronically-induced bands. In pDIB, the S2 state has been tentatively observed at about 6100 cm(-1) above the S0-S1 origin. In pIBN, the S0-S1 origin is considerably stronger, but vibronic coupling still plays an important role, involving fundamentals of b2 symmetry. The bending mode of the nitrile group dominates the vibronically-induced activity. Calculations carried out at the TD-DFT B3LYP/6-31+G(d) level of theory account for the extremely weak S0-S1 oscillator strength of pDIB and the larger intensity of the S0-S1 origins of pIBN and pDCB (para-dicyanobenzene) as nitrile groups are substituted for isonitrile groups. In pDIB, a nearly perfect cancellation of transition dipoles occurs due to two one-electron transitions that contribute nearly equally to the S0-S1 transition. The spectra of both molecules show no clear evidence of charge-transfer interactions that play such an important role in some cyanobenzene derivatives. PMID:25699407

Mehta-Hurt, Deepali N; Korn, Joseph A; Gutberlet, Anna K; Zwier, Timothy S

2015-03-26

149

Preguntas para hacerle al doctor acerca del cáncer  

Cancer.gov

Serie de preguntas, organizadas por tema, que los pacientes con cáncer pueden hacerle al médico o a otros miembros de su equipo de atención médica para conocer más acerca de su tipo de cáncer y lo que pueden esperar.

150

DIANA: Anlisis del discurso para la comprensin del conocimiento  

E-print Network

DIANA: Análisis del discurso para la comprensión del conocimiento DIANA: DIscourse ANAlysis by the Spanish Ministry of Economy and Competitiveness. Paolo Rosso coordinates the DIANA project and leads

Rosso, Paolo

151

Inmunoterapia: Uso del sistema inmunitario para tratar el cáncer  

Cancer.gov

Resumen de los métodos de inmunoterapia utilizados para tratar el cáncer, tales como el uso de anticuerpos monoclonales, transferencia celular adoptiva, vacunas de tratamiento contra el cáncer y sustancias modificadoras de la respuesta inmunitaria.

152

Control del dolor: Apoyo para las personas con cáncer  

Cancer.gov

Libro sobre el control del dolor en pacientes con cáncer. Cubre los métodos y medicinas, así como los efectos físicos y emocionales del dolor. Es una adaptación cultural para el público de habla hispana del libro en inglés Pain Control.

153

La terapia hormonal para la menopausia y el cáncer  

Cancer.gov

Hoja informativa acerca de los resultados de los estudios sobre el uso de la terapia hormonal para la menopausia. Incluye información sobre el efecto de esta terapia en el cuerpo y explica los riesgos y beneficios del uso de hormonas.

154

DEPARTAMENTO DE INGENIERIA INFORMATICA Normativas para el Programa Doctorado del  

E-print Network

DEPARTAMENTO DE INGENIERIA INFORMATICA Normativas para el Programa Doctorado del Departamento de Valiente, 11. Madrid, 28049. Teléfono: 914972230 #12;DEPARTAMENTO DE INGENIERIA INFORMATICA 4. Una vez

Autonoma de Madrid, Universidad

155

MANUAL PARA EL ANLISIS ECONMICO DE REAS NATURALES PROTEGIDAS EN  

E-print Network

VOLUMEN 3 INSTRUMENTOS, ESTRATEGIAS E INCENTIVOS ECONÓMICOS PARA LA CONSERVACIÓN EN LAS ÁREAS NATURALES.3. ¿Regulación directa o instrumentos económicos?......................................... 4 1.4. El contexto goce o aprovechamiento...................................... 19 5. Instrumentos financieros

Enríquez Andrade, Roberto Ramón

156

Mensaje para alumnos y padres - Duration: 3:01.  

NASA Video Gallery

El astronauta de la NASA José Hernández alienta a los estudiantes a que sigan sus sueños. Hernández también habla acerca del papel que juegan los padres para ayudar a que sus hijos hagan realidad s...

157

Preguntas para el doctor si tiene un cáncer avanzado  

Cancer.gov

Serie de preguntas que los pacientes con cáncer pueden hacerle al médico sobre las opciones de tratamiento si el cáncer es avanzado, las formas de controlar los síntomas y cómo prepararse para la etapa final de la vida.

158

40 CFR 721.9520 - Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye (generic).  

Code of Federal Regulations, 2010 CFR

... false Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye...9520 Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye...generically as methylated-para-rosaniline salt of a trisulfonated triarylmethane...

2010-07-01

159

40 CFR 721.9520 - Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye (generic).  

Code of Federal Regulations, 2013 CFR

... false Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye...9520 Methylated-para-rosaniline salt of a trisulfonated triarylmethane dye...generically as methylated-para-rosaniline salt of a trisulfonated triarylmethane...

2013-07-01

160

Cooling by conversion of para to ortho-hydrogen  

NASA Technical Reports Server (NTRS)

The cooling capacity of a solid hydrogen cooling system is significantly increased by exposing vapor created during evaporation of a solid hydrogen mass to a catalyst and thereby accelerating the endothermic para-to-ortho transition of the vapor to equilibrium hydrogen. Catalyst such as nickel, copper, iron or metal hydride gels of films in a low pressure drop catalytic reactor are suitable for accelerating the endothermic para-to-ortho conversion.

Sherman, A. (inventor)

1983-01-01

161

Pasanta en TICs para el Carlos Rey Moreno  

E-print Network

EHAS 3 en Perú con GTR-PUCP Objetivo Madrid: Desarrollo software para la mejora de la metodología de1 Pasantía en TICs para el desarrollo Carlos Rey Moreno I.T.T Sistemas de Telecomunicación UC3M MSc Relaciones Internacionales y Desarrollo AAU Investigador Fundación EHAS Actividades académicas en Cooperación

Autonoma de Madrid, Universidad

162

Para hydrogen equilibration in the atmospheres of the outer planets  

NASA Technical Reports Server (NTRS)

The thermodynamic behavior of the atmospheres of the Jovian planets is strongly dependent on the extent to which local thermal equilibration of the ortho and para states of molecular hydrogen is achieved. Voyager IRIS data from Jupiter imply substantial departures of the para hydrogen fraction from equilibrium in the upper troposphere at low latitudes, but with values approaching equilibrium at higher latitudes. Data from Saturn are less sensitive to the orth-para ratio, but suggest para hydrogen fractions near the equilibrium value. Above approximately the 200 K temperature level, para hydrogen conversion can enhance the efficiency of convection, resulting in a substantial increase in overturning times on all of the outer planets. Currently available data cannot definitively establish the ortho-para ratios in the atmospheres of Uranus and Neptune, but suggest values closer to local equilibrium than to the 3.1 normal ratio. Modeling of sub-millimeter wavelength measurements of these planets suggest thermal structures with frozen equilibrium lapse rates in their convective regions.

Conrath, Barney J.

1986-01-01

163

ParaText : scalable text modeling and analysis.  

SciTech Connect

Automated processing, modeling, and analysis of unstructured text (news documents, web content, journal articles, etc.) is a key task in many data analysis and decision making applications. As data sizes grow, scalability is essential for deep analysis. In many cases, documents are modeled as term or feature vectors and latent semantic analysis (LSA) is used to model latent, or hidden, relationships between documents and terms appearing in those documents. LSA supplies conceptual organization and analysis of document collections by modeling high-dimension feature vectors in many fewer dimensions. While past work on the scalability of LSA modeling has focused on the SVD, the goal of our work is to investigate the use of distributed memory architectures for the entire text analysis process, from data ingestion to semantic modeling and analysis. ParaText is a set of software components for distributed processing, modeling, and analysis of unstructured text. The ParaText source code is available under a BSD license, as an integral part of the Titan toolkit. ParaText components are chained-together into data-parallel pipelines that are replicated across processes on distributed-memory architectures. Individual components can be replaced or rewired to explore different computational strategies and implement new functionality. ParaText functionality can be embedded in applications on any platform using the native C++ API, Python, or Java. The ParaText MPI Process provides a 'generic' text analysis pipeline in a command-line executable that can be used for many serial and parallel analysis tasks. ParaText can also be deployed as a web service accessible via a RESTful (HTTP) API. In the web service configuration, any client can access the functionality provided by ParaText using commodity protocols ... from standard web browsers to custom clients written in any language.

Dunlavy, Daniel M.; Stanton, Eric T.; Shead, Timothy M.

2010-06-01

164

Sistemas Correctores de Campo Para EL Telescopio Cassegrain IAC80  

NASA Astrophysics Data System (ADS)

El proyecto de instrumentación de mayor importancia que ha tenido el Instituto de Astrofisica de Canarias en los últimos afios ha sido el diseflo y construcción del te1escopio IAC8O. Este requería del esfuerzo con junto en mec´nica, óptica y electrónica, lo que facilitó la estructuración y el crecimiento de los respectivos grupos de trabajo, que posteriormente se integraron en departamentos En su origen (1977), el telescopio IAC80 fue concebido como un sistema clásico tipo Cassegrain, con una razón focal F/i 1.3 para el sistema Casse grain y una razón focal F/20 para el sistema Coudé. Posteriormente, aunque se mantuvo la filosofia de que el sistema básico fuera el F/11.3, se consideró conveniente el diseño de secundarios para razones focales F/16 y F/32, y se eliminó el de F/20. Sin embargo, dada la importancia relativa que un foco estrictamente fotográfico tiene en un telescopio moderno, diseñado básicamente para fotometría fotoeléctrica y con un campo util mínimamente de 40 minutos de arco, se decídió Ilevar a cabo el diseño de un secundario F/8 con un sistema corrector de campo, pero que estuviera formado únicamente por lentes con superficies esféricas para que asl su construcción fuera posible en España ó en México. La creciente utilización de detectores bidimensionales para fines de investigación astron6mica y la viabilidad de que en un futuro cercano éstos tengan un área sensible cada vez mayor, hicieron atractiva la idea de tener diseñado un sistema corrector de campo para el foco primario (F/3), con un campo útil mínimo de un grado, y también con la limitante de que sus componentes tuvieron sólamente supérficies esféricas. Ambos diseños de los sis-temas correctores de campo se llevaron a cabo, en gran medida, como parte de un proyecto de colaboración e intercambio en el área de diseño y evaluación de sistemas ópticos.

Galan, M. J.; Cobos, F. J.

1987-05-01

165

Evolution of invertebrate deuterostomes and Hox/ParaHox genes.  

PubMed

Transcription factors encoded by Antennapedia-class homeobox genes play crucial roles in controlling development of animals, and are often found clustered in animal genomes. The Hox and ParaHox gene clusters have been regarded as evolutionary sisters and evolved from a putative common ancestral gene complex, the ProtoHox cluster, prior to the divergence of the Cnidaria and Bilateria (bilaterally symmetrical animals). The Deuterostomia is a monophyletic group of animals that belongs to the Bilateria, and a sister group to the Protostomia. The deuterostomes include the vertebrates (to which we belong), invertebrate chordates, hemichordates, echinoderms and possibly xenoturbellids, as well as acoelomorphs. The studies of Hox and ParaHox genes provide insights into the origin and subsequent evolution of the bilaterian animals. Recently, it becomes apparent that among the Hox and ParaHox genes, there are significant variations in organization on the chromosome, expression pattern, and function. In this review, focusing on invertebrate deuterostomes, I first summarize recent findings about Hox and ParaHox genes. Next, citing unsolved issues, I try to provide clues that might allow us to reconstruct the common ancestor of deuterostomes, as well as understand the roles of Hox and ParaHox genes in the development and evolution of deuterostomes. PMID:21802045

Ikuta, Tetsuro

2011-06-01

166

Study on cross-reactivity to the para group.  

PubMed

In 80 patients, positive to at least one hapten of the para group (para-phenylenediamine, diaminodiphenylmethane, benzocaine, PPD mix), patch tests were carried out with freshly prepared solutions of para-phenylenediamine (PPD) and of 3 selected aromatic compounds related structurally to PPD (para-aminophenol, ortho-aminophenol, hydroquinone). The number of positive reactions correlated with the rate of decomposition of the substances as evaluated by high-pressure liquid chromatography. PPD, which was almost decomposed after 24 h, gave the highest number of positive reactions, followed by ortho-aminophenol and by para-aminophenol, while hydroquinone, which was oxidized to the extent of 35%, did not give any reactions. To evaluate if a different rate of oxidation can modify the patch test response, in the same patients and in 10 normal volunteers, tests were carried out with PPD solutions containing the oxidizing agent silver oxide (0.1%). By this procedure a significant increase in the number of positive responses was observed. The results suggest that the rate of decomposition and therefore the amount of quinone(s) generated, might be the key to eliciting patch test responses to oxidizable aromatic haptens. PMID:2242776

Picardo, M; Cannistraci, C; Cristaudo, A; De Luca, C; Santucci, B

1990-01-01

167

El uso de la neuromodulación para el tratamiento del temblor  

PubMed Central

Introducción: El temblor puede ser un desorden incapacitante y el tratamiento de primera línea para estos pacientes es farmacológico. Sin embargo, este tratamiento puede llevar a una reducción satisfactoria del temblor en sólo el 50% de los pacientes con temblor esencial. La talamotomía era el tratamiento de elección para el temblor refractario al tratamiento médico hasta que comenzó a utilizarse la estimulación cerebral profunda (ECP) del núcleo ventral intermedio (Vim) del tálamo. En la actualidad, raramente se realiza la talamotomía. Métodos: Este artículo es una revisión no sistemática de las indicaciones, resultados, parámetros de programación y técnica quirúrgica de la ECP del Vim para el tratamiento del temblor. Resultados: Aunque los resultados clínicos son similares usando la talamotomía o la ECP del Vim, la primera causa más efectos adversos que la última. Además, la ECP puede ser usada bilateralmente, mientras que la talamotomía tiene un alto riesgo de causar disartria cuando se realiza de ambos lados. La ECP del Vim logró una adecuada mejoría del temblor en varias series de pacientes con temblor causado por temblor esencial, enfermedad de Parkinson o esclerosis múltiple. Además del Vim, hay otros blancos que están siendo usados por varios autores, tales como la zona incerta y las radiaciones prelemniscales. Conclusión: La ECP del Vim es un tratamiento útil para el temblor incapacitante refractario al tratamiento médico. Es esencial realizar una precisa selección de pacientes, así como utilizar una técnica quirúrgica correcta. Aún se desconoce el mejor blanco estereotáctico para el temblor, aunque el Vim es el más usado. PMID:25165613

Bendersky, Damián; Ajler, Pablo; Yampolsky, Claudio

2014-01-01

168

Hox and ParaHox genes: a review on molluscs.  

PubMed

Hox and ParaHox genes are involved in patterning the anterior-posterior body axis in metazoans during embryo development. Body plan evolution and diversification are affected by variations in the number and sequence of Hox and ParaHox genes, as well as by their expression patterns. For this reason Hox and ParaHox gene investigation in the phylum Mollusca is of great interest, as this is one of the most important taxa of protostomes, characterized by a high morphological diversity. The comparison of the works reviewed here indicates that species of molluscs, belonging to different classes, share a similar composition of Hox and ParaHox genes. Therefore evidence suggests that the wide morphological diversity of this taxon could be ascribed to differences in Hox gene interactions and expressions and changes in the Hox downstream genes rather than to Hox cluster composition. Moreover the data available on Hox and ParaHox genes in molluscs compared with those of other Lophotrochozoa shed light on the complex and controversial evolutionary histories that these genes have undergone within protostomes. PMID:25394269

Biscotti, Maria Assunta; Canapa, Adriana; Forconi, Mariko; Barucca, Marco

2014-12-01

169

Matriz de contabilidad social extendida ambientalmente para análisis económico de la región del Bio Bio  

Microsoft Academic Search

Se construye una Matriz de Contabilidad Social Extendida Ambientalmente para la Región del Bío Bío. Para ello aplicamos el método indirecto conocido como Cross Entropy para actualizar una Matriz de Contabilidad Social de esta región desde el año 1996 al 2006. Esta matriz sirve de base para un análisis de multiplicadores, cuyo fin es identificar los sectores productivos de la

Cristian Mardones P; Jorge Saavedra E

2011-01-01

170

Un algoritmo para la deteccion de horizonte en dispositivos voladores radiocontrolados  

Microsoft Academic Search

Presentamos un algoritmo para la deteccion no supervisada en tiempo real del hori- zonte en imagenes de video. El mismo estad isenado para ser implementado en dispositivos autonomos de bajo costo y capacidad de computo (microcontroladores), como para ser incorporados en veh´õculos voladores no tripulados (UAVs). Esto permitiral a obtencion de informacion indispensable para la orientacion, navegacion, georeferenciamiento y la

Pablo Odorico; Claudio Delrieux

171

Usina de ciências: um espaço pedagógico para aprendizagens múltiplas  

NASA Astrophysics Data System (ADS)

Entendemos que o Ensino de Astronomia é especialmente apropriado para motivar os alunos e aprofundar conteúdos em diversas áreas do conhecimento, pois envolve temas ligados à Física, Matemática, Química, Computação, Tratamento de Imagens e Instrumentação de Alta Precisão, além daqueles pertinentes as áreas de Geografia, História e Antropologia. Contudo, apesar do caráter interdisciplinar que esta ciência possui, a realidade atual é que a maioria dos professores em sala de aula não foram devidamente capacitados, durante o período de formação acadêmica, para ministrar conteúdos de Astronomia nos atuais Ensinos Fundamental e Médio. Neste trabalho, discutiremos de maneira ampla, num primeiro momento, a realidade do atual ensino de ciências praticado no Estado da Bahia, apontando por dependência administrativa, o crescimento e a redução do número de escolas, da taxa de analfabetismo por faixa etária, da escolarização, do atendimento, da aprovação, reprovação e abandono, de equipamentos e laboratórios e o grau de formação dos nossos atuais professores em pleno exercício de atividade docente. Num segundo momento, discutiremos o papel do Observatório Astronômico Antares/UEFS dentro desse contexto, ou seja, suas ações implementadas ao longo dos últimos anos e em particular, o recente projeto de extensão Ensino e Difusão de Astronomia, financiado pela Fundação Vitae, que procura traduzir no lúdico, no brincar de ciências, um espaço pedagógico para aprendizagens múltiplas. Neste, o papel do professor multiplicador associado ao laboratório de kits didáticos, de fácil construção e manipulação (alguns dos quais serão mostrados), perfazem os principais veículos para o desenvolvimento de conhecimentos, atitudes, habilidades e valores que preparam os nossos alunos para a carreira técnico-científica e para sua participação crítica e criativa na Sociedade.

Martin, V. A. F.; Poppe, P. C. R.; Orrico, A. C. P.; Pereira, M. G.

2003-08-01

172

Estudiar las redes sociales: Aportes y perspectivas para las  

E-print Network

Estudiar las redes sociales: Aportes y perspectivas para las ciencias sociales Claire Bidart LEST muchas razones en interesarse en las redes socia- les. Estos sistemas relacionales construyen lazos entre estructuracio- nes, sus dinámicas. Transversales a los grupos y a las estructuras sociales glo- bales, las redes

Paris-Sud XI, Université de

173

Reconocimiento robusto de marcadores artificiales para la navegacion de robots  

E-print Network

cambios de escala. Los experimentos demuestran que nuestra soluci´on es r´apida y muy robusta incluso en Introducci´on Dentro del campo de investigaci´on dedicado a la navegaci´on de robots, son mu- chos los experimentos. 2 Histogramas polares Los histogramas polares son definidos como un medio para comparar s

Escolano, Francisco

174

actuar en el Sur y para el Sur  

E-print Network

Páginas 06-07 Recursos para la investigación El IRD en 2013 Investigaciones de excelencia La Agencia desarrollo. Así, las investigaciones sobre el cambio climático, la gestión de los recursos, la biodiversidad lado, de una progresión cuanti- tativa y cualitativa de las publicaciones del IRD y la tasa de copu

175

CHAMADA PARA APRESENTAO DE PROPOSTAS Programa Santander TOP USA MASSACHUSETSS  

E-print Network

CHAMADA PARA APRESENTAÇÃO DE PROPOSTAS Programa Santander TOP USA MASSACHUSETSS O Diretor de Relações Internacionais da Universidade Federal de Minas Gerais, Prof. Eduardo Viana Vargas, no uso de suas EUA, no âmbito do Programa Santander TOP USA MASSACHUSSETSS, gerenciado UNICAMP conforme

Chaimowicz, Luiz

176

Acerca del Centro para la Salud Mundial del NCI  

Cancer.gov

El Centro para la Salud Mundial (CGH) coordina y fija las prioridades en las actividades que lleva a cabo el Instituto Nacional del Cáncer a nivel mundial. Su objetivo es avanzar la investigación mundial del cáncer y reducir las muertes causadas por esta enfermedad.

177

Sistemas de ayuda inteligente para entornos informáticos complejos  

Microsoft Academic Search

Los sistemas de ayuda inteligente (SAI) o asistentes inteligentes son una propuesta para mejorar el aprendizaje y el rendimiento en la utilización de entornos informáticos complejos. Habitualmente la ayuda tiene como único fin la mejora del rendimiento del usuario, pero nosotros creemos que dicha asistencia debe tener también un propósito educativo. Si el usuario mejora su conocimiento sobre la aplicación

Baltasar Fernández Manjón

2001-01-01

178

Propuestas para la formación de conceptos en informática  

Microsoft Academic Search

Las tecnologías de la informática (TI) imponen poner en práctica estrategias comunicativas y educativas para establecer nuevas formas de enseñanza y aprendizaje. La enseñanza-aprendizaje de la Informática es una problemática actual. En que es necesario estudiarla, no son muchos los que se disgregan; pero en qué y cómo enseñar, si existen grandes divergencias de criterios y enfoques. En este trabajo

Dora Mercedes Pérez Mok; Idalmis Urgellés Castillo

2011-01-01

179

ELABORACION DE ALGORITMOS DE PRUEBA PARA RELES DE PROTECCION  

E-print Network

protección de naturaleza electrónica digital; estos mismos, para su control periódico requieren de pruebas nature; these same ones, for their periodic control require of tests with the object of corroborating with the equipment PULSAR. 1. INTRODUCCION La continuidad y la calidad del servicio son dos requisitos íntimamente

Boyer, Edmond

180

Para-acetabular periarthritis calcarea: Its radiographic manifestations  

Microsoft Academic Search

On retrospective reviews of radiographs, periarthritis calcarea was distinguished from os acetabula by interval radiographic progression and regression. Among 59 men and 51 women, there were 137 instances of para-acetabular calcifications and ossifications, which were morphologically classified as 58 discrete, 58 amorphous, and 21 segmented types. Correlations with other radiographic abnormalities, symptoms, signs, and laboratory abnormalities were sought, but not

Akira Kawashima; Sadayuki Murayama; Toshiyuki Ohuchida; Walter J. Russell

1988-01-01

181

Una Arquitectura para una Herramienta de Patrones de Diseo  

E-print Network

Una Arquitectura para una Herramienta de Patrones de Diseño José Sáez Martínez1 , Jesús García herramientas es necesario disponer de una arquitectura flexible que permita manipularlos eficientemente. Este trabajo presenta una arquitectura, basada a su vez en patrones, diseñada con este fin y describe una

Molina, Jesús García

182

Para-[18F]-fluorohippurate [ [18F]-PFH  

E-print Network

are evaluating the use of dynamic SPECT or positron emission tomography (PET) to assess kidney function to evaluate kidney function and perform renography with PET, para-18F-fluorohippurate ([18F]-PFH), a renal emission tomography (PET) Source of signal / contrast: 18F Activation: No Studies: · In vitro · Rodents

Levin, Judith G.

183

IMAGEN TRIDIMENSIONAL DE SUSTRATOS BIODEGRADABLES PARA SOPORTE CELULAR  

Microsoft Academic Search

En la última década se ha despertado un gran interés en investigar y desarr ollar biomateriales con propiedades óptimas para la reparación y regeneración de tejidos 1. Idealmente, el objetivo es obtener una estructura extracelular que, después de proporcionar soporte inicial a las células, se reabsorba durante la regeneración del t ejido y finalmente sea remplazada completamente sin perjuicio o

Leoncio Garrido

184

Recursos financieros Familias confan en varios recursos para pagar costos  

E-print Network

Recursos financieros Familias confían en varios recursos para pagar costos universitarios. Cuando Recursos personales que ya tienen Recursos financieros que pueden buscar Las fechas de vencimiento de la contribuido tu familia ha este fondo? Recursos financieros que tú puedes buscar Llenar la solicitud por ayuda

185

Ambiente para la Captura y Administración de Versiones de Modelos  

Microsoft Academic Search

El proceso de desarrollo de modelos para la gestión, investigación, producción, etc., en general involucra actividades creativas, que frecuentemente son poco estructuradas, es decir, no existe un flujo de trabajo definido previamente. Durante este proceso se genera un gran número de modelos de distinto nivel de abstracción del objeto que se desarrolla, el cual puede consistir en un sistema de

Diego Sánchez Schenone; Silvio Gonnet; Horacio Leone

186

Analyzing and Visualizing Cosmological Simulations with ParaView  

SciTech Connect

The advent of large cosmological sky surveys - ushering in the era of precision cosmology - has been accompanied by ever larger cosmological simulations. The analysis of these simulations, which currently encompass tens of billions of particles and up to a trillion particles in the near future, is often as daunting as carrying out the simulations in the first place. Therefore, the development of very efficient analysis tools combining qualitative and quantitative capabilities is a matter of some urgency. In this paper, we introduce new analysis features implemented within ParaView, a fully parallel, open-source visualization toolkit, to analyze large N-body simulations. A major aspect of ParaView is that it can live and operate on the same machines and utilize the same parallel power as the simulation codes themselves. In addition, data movement is in a serious bottleneck now and will become even more of an issue in the future; an interactive visualization and analysis tool that can handle data in situ is fast becoming essential. The new features in ParaView include particle readers and a very efficient halo finder that identifies friends-of-friends halos and determines common halo properties, including spherical overdensity properties. In combination with many other functionalities already existing within ParaView, such as histogram routines or interfaces to programming languages like Python, this enhanced version enables fast, interactive, and convenient analyses of large cosmological simulations. In addition, development paths are available for future extensions.

Woodring, Jonathan [Los Alamos National Laboratory (LANL); Heitmann, Katrin [ORNL; Ahrens, James P [ORNL; Fasel, Patricia [Los Alamos National Laboratory (LANL); Hsu, Chung-Hsing [ORNL; Habib, Salman [ORNL; Pope, Adrian [Los Alamos National Laboratory (LANL)

2011-01-01

187

Modelo para la Integración de Tecnologías en Educación Superior  

Microsoft Academic Search

Abstract En este trabajo se discute un modelo para la incorporaciónde tecnologías en educación superior. Este modelo surge a partir de un proyecto de investigaciónque está siendo desarrollado en conjunto por investigadores de la Universidad Nacional de La Pampa (Argentina) y de la Universidad de Illinois (USA). La colaboración interdisciplinaria de docentes e investigadorescon experiencia en las áreas de e-learning

Pedro A. Willging; Norma I. Scagnoli

188

EL APORTE DE LA NEUROCIENCIA PARA LA FORMACIÓN DOCENTE  

Microsoft Academic Search

Resumen: El siguiente artículo se propone, a partir del análisis de un proceso de investigación sobre el área pedagógica en los planes de formación docente, realizar una invitación a la incorporación del estudio del cerebro humano, como eje dentro de la formación profesional para el ejercicio docente. La capacidad de educabilidad propia de los seres humanos tiene su explicación sobre

Susan Francis Salazar

2005-01-01

189

Terapias adyuvantes y neoadyuvantes para el cáncer de seno  

Cancer.gov

Hoja informativa que explica las terapias adyuvantes (tratamiento que se administra además de la terapia primaria para aumentar la posibilidad de supervivencia a largo plazo) y las neoadyuvantes (terapia que se administra antes de la terapia principal). Contiene información sobre los efectos secundarios y sobre los riesgos y beneficios de estas terapias.

190

Marvin, robô construtor para competição em robótica móvel  

Microsoft Academic Search

renatohsp@gmail .com Resumo: Este artigo é sobre a construção do robô autônomo Marvin o Construtor, que foi construído para participar da IV Competição IEEE Brasileira de Robô. A tarefa consiste em empilhar blocos em uma área predeterminada em um menor tempo possível, ganha a torre mais alta. O robô, construído por alunos do Instituto Tecnológico de Aeronáutica (ITA), foi construído

André Martin Narciso; Carlos Augusto; Bentes da Silva; Jackson Paul Matsuura

191

O JORNAL ESCOLAR: INSTRUMENTO PARA A FORMAÇÃO CRÍTICA E CIDADÃ  

Microsoft Academic Search

RESUMO: Neste relato de pesquisa, pretendo analisar a viabilidade de se trabalhar, na escola, com a produção do jornal escolar como recurso para mobilizar uma série de ações visando à promoção, no aluno, da consciência crítica dos usos da linguagem no mundo e da sua formação enquanto ser participativo e agente em questões que lhe dizem respeito dentro e fora

Rosana Cristina DA CUNHA

192

Algoritmo genetico para o problema de rotas de cobertura multiveiculo  

E-print Network

Algoritmo gen´etico para o problema de rotas de cobertura multive´iculo Washington Alves de¸c~oes sub´otimas s~ao obtidas aplicando-se duas propostas de algoritmo gen´etico (AG), os quais geram rotas de tamanho menor poss´ivel. Palavras-chave: Programa¸c~ao inteira e combinat´oria, algoritmo gen´etico

Gomes, Francisco A. M.

193

Creciendo Juntos Plan de la Universidad de Columbia para  

E-print Network

proyecto de reubicación y reconstrucción de utilidades para sustituir alcantarillado y tuberías de agua y calles 129th y 125th a un ya existente regulador del alcantarillado en la avenida 12th. Columbia adjudicó

Hone, James

194

Anise oil as para-methoxyamphetamine (PMA) precursor  

Microsoft Academic Search

These days, MDMA is one of the most popular drugs of abuse. Due to its illegality, MDMA and its chemical precursors are watched by governmental organizations in many countries. To avoid conflicts with legal instances, underground chemists have tried to market several new unregulated amphetamine analogues, such as 4-MTA. Para-methoxyamphetamine (PMA), on the other hand, is regulated by law but

Dieter Waumans; Noël Bruneel; Jan Tytgat

2003-01-01

195

ACUTE TOXICITY OF PARA-NONYLPHENOL TO SALTWATER ANIMALS  

EPA Science Inventory

?para-Nonylphenol (PNP), a mixture of alkylphenols used in producing nonionic surfactants, is distributed widely in surface waters and aquatic sediments, where it can affect saltwater species. This article describes a database for acute toxicity of PNP derived for calculating a n...

196

UN ESQUEMA ADAPTATIVO PARA LA COMPRESION DE IMAGENES  

E-print Network

art´iculo de Amat, Ar`andiga, Cohen, Donat, Garc´ia y von Oehsen titulado "Data compresion with ENOUN ESQUEMA ADAPTATIVO PARA LA COMPRESION DE IMAGENES En la era de la comunicaci´on en la que la compresi´on de im´agenes. Con compresi´on nos referimos a tener una versi´on de la foto original

Amat, Sergio

197

Subastando la Energía para Clientes Regulados: Un Análisis de Equilibrio  

Microsoft Academic Search

La reciente liberalización del mercado de generación eléctrica para clientes regulados autoriza a las empresas distribuidoras a contratar energía a precios que pueden ser superiores al precio nudo fijado por el regulador, traspasándolos íntegramente a sus consumidores. Motivado en esta reforma legal, este artículo analiza el equilibrio que resulta de una subasta hipotética en que una empresa distribuidora contrataría su

Francisco Caravia; Eduardo Saavedra

2005-01-01

198

Para lle l Support Vector Mach ines: The Cascade SVM  

E-print Network

Para lle l Support Vector Mach ines: The Cascade SVM Hans Peter Graf, Eric Cosatto, Leon Bottou, leonb, igord, vlad}@nec­labs.com Abstract We describe an algorithm for support vector machines (SVM in a `Cascade' of SVMs, until the global optimum is reached. The Cascade SVM can be spread over multiple

Bottou, Léon

199

LIMITAÇÕES LOGÍSTICAS PARA EXPORTAÇÃO: O CASO DOS PRODUTOS LÁCTEOS BRASILEIROS  

Microsoft Academic Search

O propósito desta pesquisa é avaliar a estrutura do agribusiness do leite no Brasil, identificando as principais limitações logísticas para exportação. Especificamente pretende identificar as principais empresas exportadoras de produtos lácteos, os produtos mais exportados e os países de destino; relatar as maneiras mais freqüentes de inserção dos produtos no mercado externo; e mencionar as estruturas físicas utilizadas pelas empresas

Adriano Abreu Rezende; Antonio Carlos dos Santos

2008-01-01

200

Mtricas de Funcionalidad: una taxonoma para sistemas Web  

E-print Network

Muy poco de lo aprendido en ingeniería de software, se aplica en el desarrollo de sistemas Web. Esto, métricas para aplicaciones Web, aplicaciones/sitios Web. 1. Introducción El desarrollo y crecimiento del desarrollo de sitios y aplicaciones Web está caracterizado por cuatro importantes factores: (1) las

Guerrero, Luis

201

Técnicas grupales para identificación de valores en estudiantes de estomatología  

Microsoft Academic Search

Se realizó un estudio descriptivo transversal en el Centro Universitario Municipal Julio A. Mella de Guantánamo, curso escolar 2010-2011, con el objetivo de identificar los valores en los estudiantes de primer año de la carrera de Estomatología a través de técnicas grupales. El universo de estudio 19 estudiantes. Se utilizaron tres técnicas grupales. La primera para aumentar el entendimiento y

Nivia Ernestina Sánchez Fernández

2011-01-01

202

NCI Anuncia Contribuciones para Incrementar Acceso de Minorías a Información sobre el Cáncer  

Cancer.gov

El Instituto Nacional del Cáncer (NCI) anunció este mes una variedad de contribuciones que totalizan casi 1 millón de dólares para ayudar a desarrollar la investigación y programas para comprender y finalmente romper la División Digital que existe en muchas poblaciones minoritarias para el acceso y uso de la información sobre el cáncer disponible en la Internet. Las contribuciones son un esfuerzo del Servicio de Información sobre el Cáncer (CIS), dependiente de la NCI, para trabajar con grupos y organizaciones regionales para el control del cáncer para probar estrategias destinadas a aumentar las comunicaciones sobre el cáncer en comunidades deficientemente atendidas

203

Zoneamento de riscos climáticos para a cultura de milho na Região Centro-Oeste do Brasil e para o estado de Minas Gerais Climatic risks zoning for maize production in West-Center Region and in Minas Gerais state, Brazil  

Microsoft Academic Search

Resumo - Para a cultura de milho, a água é um fator limitante, principalmente, na fase de germinação e nos períodos de floração e enchimento de grãos. Desta forma, conhecer os elementos climáticos é uma estratégia para definir manejos que possibilitem minimizar riscos climáticos, contribuindo para melhorar a política de alocação de recursos para crédito agrícola e para o aumento

Luiz Marcelo Aguiar Sans; Eduardo Delgado Assad; Daniel Pereira Guimarães; Gisela Avellar

2001-01-01

204

Um satélite brasileiro para observação do diâmetro solar  

NASA Astrophysics Data System (ADS)

Propomos uma missão espacial para medir a forma e o diâmetro solar com o objetivo de ajudar a determinar o potencial gravitacional do Sol e a sua rotação com precisão, testar modelos teóricos de variação de energia e pela primeira vez medir os modos g de oscilação. As observações serão obtidas através do instrumento denominado APT (Astrometric and Photometric Telescope) descrito por Kuhn(1983). A sensibilidade do instrumento é de 0,2 mas em 27 dias para as observações do diâmetro solar feitas a cada minuto. Esta é uma missão de três anos de duração e pode complementar as medidas que serão feitas pelo satélite PICARD (a ser lançado em 2007). Outros parâmetros físicos podem ser obtidos com as mesmas imagens o que certamente interessará à comunidade de física solar. Um primeiro contato foi realizado com a agência espacial brasileira que pretende lançar um satélite científico a cada dois anos.

Emilio, M.; Leister, N. V.; Benevides Soares, P.; Teixeira, R.; Kuhn, J.

2003-08-01

205

Para-Sasakian geometry in thermodynamic fluctuation theory  

NASA Astrophysics Data System (ADS)

In this work we tie concepts derived from statistical mechanics, information theory and contact Riemannian geometry within a single consistent formalism for thermodynamic fluctuation theory. We derive the concrete relations characterizing the geometry of the thermodynamic phase space stemming from the relative entropy and the Fisher–Rao information matrix. In particular, we show that the thermodynamic phase space is endowed with a natural para-contact pseudo-Riemannian structure derived from a statistical moment expansion which is para-Sasaki and ?-Einstein. Moreover, we prove that such manifold is locally isomorphic to the hyperbolic Heisenberg group. In this way we show that the hyperbolic geometry and the Heisenberg commutation relations on the phase space naturally emerge from classical statistical mechanics. Finally, we argue on the possible implications of our results.

Bravetti, A.; Lopez-Monsalvo, C. S.

2015-03-01

206

ANEXO DELIBERAO 01/2010 AUTORIZAO PARA PUBLICAO DE  

E-print Network

a publicar na rede mundial de computadores (Internet), na Biblioteca virtual da PUC-Rio, entendendo-se os certificação da obra. 2 [ ] AUTORIZO a disponibilização completa a partir de 01 (um) ano após a data da, agradecimentos, resumo, sumário. Entendo que uma nova extensão por mais 01 (um) ano para a publicação digital só

Rodriguez, Noemi

207

The rotational excitation of methanol by para-hydrogen  

Microsoft Academic Search

In this paper, we present the results of calculations of cross-sections and rate coefficients for rotationally inelastic transitions in methanol (CH3OH), in its ground torsional state, induced by collisions with para-H2 in its ground rotational state. The interaction potential was calculated by means of many-body perturbation theory, and the corresponding cross-sections computed using the coupled states approximation to the Schrödinger

J. T. Pottage; D. R. Flower; Stephen L. Davis

2004-01-01

208

Ultrafast photogeneration mechanisms of triplet states in para-hexaphenyl  

Microsoft Academic Search

We present femtosecond pump-probe measurements, both conventional and electric field-assisted, on organic light-emitting devices based on para-hexaphenyl. The dominant triplet exciton generation mechanism is assigned to nongeminate bimolecular recombination of photogenerated, spin-12 polarons. This process is active within a few hundred femtoseconds after photoexcitation and involves about 20% of the initially excited states. At higher photoexcitation densities, we observe an

C. Zenz; G. Cerullo; G. Lanzani; W. Graupner; F. Meghdadi; G. Leising; S. de Silvestri

1999-01-01

209

arquivo Proposta de regras e tabela para progresso funcional  

E-print Network

reconhecidos publicamente (arxiv.org, por exemplo). Livros - Pontuam-se livros e capítulos de livros por artigos e livros pontuam por obra. Nesse caso, aceita-se o comprovante de emissão de parecer emitido pelo editor do jornal, revista ou livro. Assessoria ad-hoc para órgãos de fomento pontuam por emissão de

Floeter, Sergio Ricardo

210

Linguagens para Programac~ao Paralela October 26, 2010  

E-print Network

estruturas de dados Linguagens para Programa¸c~ao Paralela #12;flat data-parallelism: HPF/Fortran90 opera 1.0 to each element of A A = SQRT(A) ! Computes square root of each element of A L = A .EQ. B ! Sets¸c~ao Paralela #12;Exemplo F77 C diferen¸cas finitas program f77_finite_diff real X(100,100), New(100,100) do i

Rodriguez, Noemi

211

Linguagens para Programac~ao Paralela November 26, 2009  

E-print Network

estruturas de dados Linguagens para Programa¸c~ao Paralela #12;flat data-parallelism: HPF/Fortran90 opera 1.0 to each element of A A = SQRT(A) ! Computes square root of each element of A L = A .EQ. B ! Sets¸c~ao Paralela #12;Exemplo F77 C diferen¸cas finitas program f77_finite_diff real X(100,100), New(100,100) do i

Rodriguez, Noemi

212

Relativistic treatment of ortho-para-H2 transitions  

NASA Astrophysics Data System (ADS)

The rate for radiative decay from ortho- to para-H2 is calculated using the quantum electrodynamical method of Feinberg and Sucher (1971). The calculation is greatly simplified by switching to the dipole length form while the fields are still second quantized. The rate, about 10 to the -12th/a, differs only slightly from that calculated by Raich and Good (1964) and is small enough to be neglected even in interstellar space.

Dodelson, Scott

1986-09-01

213

ACOR hibrido con multiples colonias para problemas de optimizacion continua  

E-print Network

tiempo. Este tipo de algo- ritmo se conoce com´unmente como un m´etodo multi- colonia. El objetivo de la este tipo de algoritmos hacia un m´etodo multi-colonia para incrementar la capacidad de ex- ploraci, y los m´etodos de BL utilizados, SW y Simplex. En la Secci´on IV se ex- plica como se hace la

Granada, Universidad de

214

Uma simulao do QuicktimeVR para mundos poligonais  

E-print Network

a tecnologia de image-based rendering para realidade virtual. Essa abordagem consiste em se obter um número de ressaltar que a tecnologia de image-based rendering se propõe a reconstruir visões do ambiente e não o ambiente propriamente dito. #12;3 Essa tecnologia no entanto é relativamente nova e muito ainda há que ser

215

Nuclear Quadrupole Resonance Zeeman Study of paraChlorophenol  

Microsoft Academic Search

The major field gradient directions for Cl in para-chlorophenol as determined by NQR and x-ray diffraction are compared quantitatively, and found to agree. The minor field gradient directions are examined qualitatively, and are consistent with those predicted on the basis of Cl&sngbnd;C partial double bonding. From a measurement of the field gradient asymmetry parameter &eegr;, the degree of chlorine—carbon double

G. E. Peterson; P. M. Bridenbaugh

1967-01-01

216

Un API para el desarrollo de aplicaciones paralelas 100% Java  

E-print Network

Un API para el desarrollo de aplicaciones paralelas 100% Java Antonio Talón Toledo 5º curso de://www.cs.rit.edu/~ark/pj.shtml) · PJ es software libre que se distribuye bajo los términos de la GNU General Public License (http sobre un cluster #12;· Web del autor: http://www.cs.rit.edu/~ark/pj.shtml · Descargas: binario y fuentes

Giménez, Domingo

217

Edukalibre: una herramienta para la creacion colaborativa de material didactico  

Microsoft Academic Search

El Software Libre, con sus caracter¶‡sticas y su particular modelo de desarrollo, ha permitido la creacion de un conjunto de metodolog¶‡as de trabajo en grupo que han resultado satisfactorias en gran cantidad diferentesambitos. En este sentido, el proyecto Edukalibre importa y adapta estas metodolog¶‡as para ser aplicadas en la creacion y man- tenimiento de documentacion en elambito de la educacion.

Diego Chaparro; Teofllo Romera

218

Consistent Assignment of the Vibrations of Para Disubstituted Benzene Molecules  

NASA Astrophysics Data System (ADS)

When disubstituted benzene molecules are considered the relative position of the substituents must be defined. The three possible forms are ortho-, meta-, and para- where the latter is investigated in this work by consideration of the effect para positioned substituents will have on the vibrational modes. The consistency of the labelling and assignment of the vibrational frequencies of the para disubstituted benzene molecules is investigated in their ground states (S0) and first electronically excited states (S1). The work extends a previously published nomenclature where ring-localised vibrations are compared straightforwardly across different monosubstituted benzene species and given the label Mi. The assignments of the frequencies include previous work but also the calculated wavenumbers for both hydrogenated disubstituted benzenes (-h4) and the deuterated isotopologues (-d4) employing density functional theory (DFT) and time-dependent density functional theory (TDDFT). A. M. Gardner and T. G. Wright, J. Chem. Phys., 135, 114305 (2011) A. M. Gardner, A. M. Green, V. M. Tame-Reyes, V. H. K. Wilton and T. G. Wright, 138, 134303 (2013) A. M. Gardner, A. M. Green, V. M. Tame-Reyes, K. L. Reid, J. A. Davies, V. H. K. Wilton and T. G. Wright, manuscript accepted

Andrejeva, Anna; Lee, Alison Jasmin; Wright, Tim

2014-06-01

219

Determination of the Ratio of Ortho Hydrogen and Para Hydrogen  

NASA Astrophysics Data System (ADS)

The two different quantum states of hydrogen, ortho-hydrogen and para-hydrogen, possess different properties. The accurate determination of the ortho/para ratio in gaseous, liquid and solid state is important both for research needs and for applications in cryogenic engineering, such as H2 production, transport and storage. NMR can determine the ratio1 accurately, but it is cumbersome and often not practical. Cryogenic applications need a simple and reliable method. We report on the development of a thermal conductivity gauge employing a pure metal thin film that serves as both heater and thermometer for the detection of ortho-para hydrogen ratios in the gaseous state. This ratio-meter has been tested and found to have a nearly pressure-independent voltage response over a broad pressure range with a constant current. The thermal conductivity of hydrogen and nitrogen was measured and found to agree quantitatively with published data. The new development will be presented. *Thanks to Larry Phelps, Bill Malphurs, Stephen Wood, David Hernandez. # Supported by NASA Contract NAG3-2750 Ref. 1. D. Zhou, C. M. Edwards, and N. S. Sullivan, Phys. Rev. Lett. 62, 1528 (1989)

Zhou, D.; Ihas, G. G.; Sullivan, N. S.

2003-03-01

220

Consejos para los efectos de la quimioterapia: Cambios en la memoria  

Cancer.gov

Provee consejos prácticos para las personas que están reflejando cambios en la memoria durante la quimioterapia. Enumera síntomas que requieren que se comuniquen con su médico o enfermera e incluye preguntas para su médico o enfermera.

221

Taller de Ciencia para J ovenes CIMAT, 20-31 julio, 1998  

E-print Network

~nar los cursos de \\Ciencia para J#19;ovenes'' para alumnos de escuelas preparatorias en los a~nos 1997 of Numbers", por L. E. Dickson (The Uni- versity of Chicago Press, 1947). Un cl#19;asico del tema. Todos

Bor, Gil

222

1/4 CBEB 2008 SISTEMA PARA ESTIMAO DE INTENO DE MOVIMENTO EM  

E-print Network

2008 para a prótese, a coordenação entre os micro-controladores escravos para fazer medições de diferentes variáveis, e a geração de trajetórias de juntas. Os micro-controladores escravos utilizados são d

Carvalho, João Luiz

223

Pitones Birmanas en Florida del Sur: Soporte Cientfico para el Manejo de Especies Invasoras1  

E-print Network

clasificada por la Unión Internacional para la Conservación como "casi amenazada" en su rango nativo en el Sureste de Asia, debido a su exportación para el comercio como mascota y a la cacería por su piel. Miles

Mazzotti, Frank

224

El Centro para la Salud Mundial del NCI anuncia las primeras becas de investigación para apoyar las tecnologías portátiles  

Cancer.gov

El Centro para la Salud Mundial del NCI (CGH) anunció el otorgamiento de subvenciones que apoyarán el desarrollo y la validación de tecnologías portátiles y de bajo costo. Estas tecnologías tienen el potencial de mejorar la detección temprana, el diagnóstico y los tratamientos no invasivos o mínimamente invasivos de varios tipos de cáncer con una prevalencia particularmente alta en ciertos países con economías de ingreso bajo y mediano.

225

A study of the valence shell electronic structure and photoionisation dynamics of para-dichlorobenzene and para-bromochlorobenzene  

NASA Astrophysics Data System (ADS)

The valence shell electronic structure and photoionisation dynamics of para-dichlorobenzene and para-bromochlorobenzene have been investigated both experimentally and theoretically. High resolution photoelectron spectra of the outer valence orbitals have been recorded with HeI radiation and the observed structure has been interpreted using calculated ionisation energies and spectral intensities. The theoretical predictions for the single-hole ionic states due to outer valence ionisation agree satisfactorily with the experimental results. Ionisation from the inner valence orbitals is strongly influenced by many-body effects and the with a particular orbital is spread amongst numerous satellites. Some of the photoelectron bands exhibit vibrational progressions and tentative assignments have been proposed. The photoionisation dynamics of the outer valence orbitals of para-dichlorobenzene have been investigated theoretically by using the continuum multiple scattering approach to calculate photoionisation partial cross-sections and photoelectron anisotropy parameters. The results show that ionisation from some of the orbitals is affected by the Cooper minimum associated with the chlorine atom. Synchrotron radiation has been used to record angle resolved photoelectron spectra of the entire valence shell, for photon energies between threshold and ˜100 eV, and these have allowed the corresponding experimental data to be derived. A comparison between the predicted and measured anisotropy parameters confirms the influence of the Cooper minimum in those orbitals related to the chlorine lone-pairs.

Powis, I.; Trofimov, A. B.; Bodzuk, I. L.; Holland, D. M. P.; Potts, A. W.; Karlsson, L.

2013-03-01

226

Zeeman Effect of the Nuclear Quadrupole Resonance of 81Br in para-Bromophenol and 35Cl in paraChlorophenol  

Microsoft Academic Search

The Zeeman effect of the 81Br and 35Cl nuclear quadrupole resonance has been studied with high precision on single crystals of para-bromophenol and para-chlorophenol, respectively. The results substantially agree with previous x-ray and NQR studies of para-chlorophenol (x-ray studies are known only for this substance). In p-bromophenol, four physically inequivalent sites were found, instead of two, as reported by other

P. Bucci; P. Cecchi; A. Colligiani

1969-01-01

227

Um Framework para a Simulao de Redes Mveis Ad hoc Alexandre Mele & Markus Endler  

E-print Network

Um Framework para a Simulação de Redes Móveis Ad hoc Alexandre Mele & Markus Endler Departamento de, um framework flexível para a prototipação e simulação de protocolos para redes móveis ad hoc. Depois.11. Palavras-chave Redes Móveis Ad hoc, Framework, Simulação, Roteamento, Prototipação de Protocolos #12;Um

Endler, Markus

228

Fondos del SBIR para el desarrollo de tecnologías de imágenes más avanzadas  

Cancer.gov

El Programa de Investigación de la Innovación de la Pequeña Empresa (SBIR), junto con el Programa de Transferencia Tecnológica para la Pequeña Empresa (STTR), son los motores del NCI para la creación y comercialización de nuevas tecnologías para prevenir, diagnosticar y tratar el cáncer.

229

Notas para un curso de introduccion a la Teoria de Numeros  

E-print Network

´i inicialmente para acompa~nar los cursos de "Ciencia para J´ovenes" para alumnos de escuelas preparatorias en traducido al espa~nol. "Modern Elementry Theory of Numbers", por L. E. Dickson (The Univer- sity of Chicago

Bor, Gil

230

Un Sistema de Control de Acceso para la Distribucin de Contenidos Multimedia  

E-print Network

para aplicar una calidad de servicio (QoS) adecuada. Aunque el control de acceso es una característicaUn Sistema de Control de Acceso para la Distribución de Contenidos Multimedia M. Sánchez1 , G que se intercambie la información necesaria para realizar las tareas de control de acceso, así como

Sánchez Cuenca, Manuel

231

Propuesta de autorizacin para entornos Grid basada en la arquitectura NAS-SAML  

E-print Network

Propuesta de autorización para entornos Grid basada en la arquitectura NAS-SAML Manuel Sánchez1 que acceden a sus recursos. Se han propuesto varias arquitecturas de autorización para este tipo de como un recurso más. La arquitectura AAA fue diseñada para resolver este problema usando diferentes

Sánchez Cuenca, Manuel

232

PLANIFICACIÓN COLABORATIVA Y UBICUA PARA EL APRENDIZAJE DEL DISEÑO EN EL SISTEMA DOMOSIM-TPC  

Microsoft Academic Search

Resumen En este artículo, como punto de partida, describimos parte de nuestra experiencia en un caso de estudio particular y sobre un e scenario real en el que se trabaja para resolver una cierta problemática asociada al aprendizaje del diseño domótico. Para este caso de estudio desarrollamos un sistema para el aprendizaje colaborativo basado en los paradigmas de interacción asistida

Miguel A. Redondo; Ana I. Molina; Crescencio Bravo; José Bravo; Manuel Ortega

233

Aplicación del Teorema de Nekhorochev para tiempos de estabilidad en Mecánica Celeste  

Microsoft Academic Search

En Mecánica Celeste, uno de los problemas centrales consiste en la determinación de los tiempos de estabilidad. El teorema de Nekhorochev proporciona un método para dicho estudio, para un sistema determinado por un hamiltoniano descripto en las variables acción-ángulo. El trabajo consiste en la acotación tanto del potencial perturbador y de la matriz hessiana del hamiltoniano integrable para determinar luego

O. Miloni; J. Núñez; A. Brunini

1999-01-01

234

Accesibilidad para personas con debilidad auditiva Mac OS X Snow Leopard  

E-print Network

Accesibilidad para personas con debilidad auditiva Mac OS X Snow Leopard ASIC ­ 18 de noviembre de LEOPARD MAC OS X Snow Leopard ofrece algunas ayudas para personas sordas o con problemas para escuchar Snow Leopard ASIC ­ 18 de noviembre de 2010 Pág. 2 de 14 1. Recomendaciones previas frente al uso del

Fernández de Córdoba, Pedro

235

Accesibilidad para personas con debilidad motriz Mac Os X Snow Leopard  

E-print Network

Accesibilidad para personas con debilidad motriz Mac Os X Snow Leopard ASIC ­ 18 de noviembre de LEOPARD Si usted tiene problemas para utilizar el teclado, el ratón o el trackpad de su portátil, puede para personas con debilidad motriz Mac Os X Snow Leopard ASIC ­ 18 de noviembre de 2010 Pág. 2 de 9

Fernández de Córdoba, Pedro

236

ParA resolvase catalyzes site-specific excision of DNA from the Arabidopsis genome  

Technology Transfer Automated Retrieval System (TEKTRAN)

The small serine resolvase ParA from bacterial plasmids RK2 and RP4 catalyzes the recombination of two identical 133 bp recombination sites known as MRS. Previously, we reported that ParA is active in the fission yeast Schizosaccharomyces pombe. In this work, the parA recombinase gene was placed un...

237

Females prefer carotenoid colored males as mates in the pentamorphic livebearing fish, Poecilia parae  

Microsoft Academic Search

The first results of female preference and chosen male mating success in a new model organism, the pentamorphic livebearing fish, Poecilia parae, are presented. Poecilia parae is a relative of the guppy, P. reticulata, and is assumed to have similar reproductive behavior. We tested the hypothesis that P. parae females, like female guppies, prefer caretenoid colored males as mates. Here

Godfrey R. Bourne; Felix Breden; Teresa C. Allen

2003-01-01

238

REDES TRANSACIONALES: APORTES PARA LA LECTURA SOBRE EL CASO AMERICANO DE LA ALIANZA SOCIAL CONTINENTAL  

E-print Network

del Área de Libre Comercio para las Américas (ALCA) desarrollada por un novedoso actor transnacional y recomposición sindical a nivel internacional. Estas cuestiones resultan cardinales para comprender el relieve al proyecto del Área de Libre Comercio para las Américas (ALCA) en el continente americano. Con este

Paris-Sud XI, Université de

239

ANÁLISIS DE ÁRBOL DE FALLAS DEL SISTEMA DE UNA LLAVE PARA AGUA  

Microsoft Academic Search

La competitividad en las organizaciones es un factor primordial para su permanencia y desarrollo en el mercado. Para ello, los procesos de fabricación y los productos se monitorean constantemente incluso cuando están en su fase de diseño para asegurar la calidad que los clientes exigen. Los costos generados por reparaciones en las instalaciones del cliente o por la salida de

Rosalva Martínez Aguilar; José Francisco Rodríguez Silva

2007-01-01

240

Buenas prcticas para la digitalizacin de documentos destinados al repositorio Digital.CSIC  

E-print Network

prácticas para la digitalización de documentos en el repositorio institucional Digital.CSIC: digitalización1 Buenas prácticas para la digitalización de documentos destinados al repositorio Digital instituciones culturales disponen de escáneres de mesa para uso interno del personal o de autoservicio, como

241

Cómo cuidarse mientras usted cuida a su ser querido: Apoyo para personas que cuidan a un ser querido con cáncer  

Cancer.gov

Un folleto para las personas responsables del cuidado de un ser querido que recibe tratamiento para el cáncer. Ofrece información práctica y apoyo para ayudarlas a sobrellevar este período difícil y estresante.

242

Amazon Land Wars in the South of Para  

NASA Technical Reports Server (NTRS)

The South of Para, located in the heart of the Brazilian Amazon, has become notorious for violent land struggle. Although land conflict has a long history in Brazil, and today impacts many parts of the country, violence is most severe and persistent here. The purpose of this article is to examine why. Specifically, we consider how a particular Amazonian place, the so-called South of Para has come to be known as Brazil's most dangerous badland. We begin by considering the predominant literature, which attributes land conflict to the frontier expansion process with intensified struggle emerging in the face of rising property values and demand for private property associated with capitalist development. From this discussion, we distill a concept of the frontier, based on notions of property rights evolution and locational rents. We then empirically test the persistence of place-based violence in the region, and assess the frontier movement through an analysis of transportation costs. The findings from the analyses indicate that the prevalent theorization of frontier violence in Amazonia does little to explain its persistent and pervasive nature in the South of Para. To fill this gap in understanding, we develop an explanation based the geographic conception of place, and we use contentious politics theory heuristically to elucidate the ways in which general processes interact with place specific history to engender a landscape of violence. In so doing, we focus on environmental, cognitive, and relational mechanisms (and implicated structures), and attempt to deploy them in an explanatory framework that allows direct observation of the accumulating layers of the region's tragic history. We end by placing our discussion within a political ecological context, and consider the implications of the Amazon Land War for the environment.

Simmons, Cynthia S.; Walker, Robert T.; Arima, Eugenio Y.; Aldrich, Stephen P.; Caldas, Marcellus M.

2007-01-01

243

ORTHO-PARA SELECTION RULES IN THE GAS-PHASE CHEMISTRY OF INTERSTELLAR AMMONIA  

SciTech Connect

The ortho-para chemistry of ammonia in the cold interstellar medium is investigated using a gas-phase chemical network. Branching ratios for the primary reaction chain involved in the formation and destruction of ortho- and para-NH{sub 3} were derived using angular momentum rules based on the conservation of the nuclear spin. We show that the 'anomalous' ortho-to-para ratio of ammonia ({approx}0.7) observed in various interstellar regions is in fact consistent with nuclear spin selection rules in a para-enriched H{sub 2} gas. This ratio is found to be independent of temperature in the range 5-30 K. We also predict an ortho-to-para ratio of {approx}2.3 for NH{sub 2}. We conclude that a low ortho-to-para ratio of H{sub 2} naturally drives the ortho-to-para ratios of nitrogen hydrides below the statistical values.

Faure, A.; Hily-Blant, P.; Le Gal, R.; Rist, C. [UJF-Grenoble 1/CNRS-INSU, Institut de Planetologie et d'Astrophysique de Grenoble (IPAG) UMR 5274, Grenoble F-38041 (France); Pineau des Forets, G., E-mail: afaure@obs.ujf-grenoble.fr [Institut d'Astrophysique Spatiale, Universite Paris-Orsay and CNRS, Orsay (France)

2013-06-10

244

Do Well, Be Well with Diabetes 2013 1 Formulario de Conclusin para Personas con Diabetes Formulario de Conclusin para Personas con Diabetes 201  

E-print Network

Do Well, Be Well with Diabetes ­ 2013 1 Formulario de Conclusión para Personas con Diabetes Formulario de Conclusión para Personas con Diabetes ­ 201 Si usted NO TIENE diabetes, por favor NO LLENE este últimos cuatro números de mi número telefónico son __ __ __ __. C. Marque todas las clases sobre diabetes

245

Do Well, Be Well with Diabetes 2013 1 Formulario de Registro para Personas con Diabetes Formulario de Registro para Personas con Diabetes 2013  

E-print Network

Do Well, Be Well with Diabetes ­ 2013 1 Formulario de Registro para Personas con Diabetes Formulario de Registro para Personas con Diabetes ­ 2013 Si usted NO TIENE diabetes, por favor NO LLENE este sobre diabetes en el Condado de _______________. D. El código postal en mi casa es __ __ __ __ __. E

246

Una propuesta para el dise~no de m'etodos de Jacobi unilaterales por bloques para el Problema Sim'etrico de Valores Propios \\Lambda  

E-print Network

los tiempos de ejecuci'on te'oricos con los de un m'etodo bilateral por bloques. Palabras clave: m'etodosUna propuesta para el dise~no de m'etodos de Jacobi unilaterales por bloques para el Problema Sim'etrico de Valores Propios. Se estudian dos m'etodos secuenciales y sus versiones paralelas, y se comparan

Giménez, Domingo

247

The infrared dielectric function of solid para-hydrogen  

E-print Network

We report laboratory measurements of the absorption coefficient of solid para-H2, within the wavelength range from 1 to 16.7 micron, at high spectral resolution. In addition to the narrow rovibrational lines of H2 which are familiar from gas phase spectroscopy, the data manifest double transitions and broad phonon branches that are characteristic specifically of hydrogen in the solid phase. These transitions are of interest because they provide a spectral signature which is independent of the impurity content of the matrix. We have used our data, in combination with a model of the ultraviolet absorptions of the H2 molecule, to construct the dielectric function of solid para-H2 over a broad range of frequencies. Our results will be useful in determining the electromagnetic response of small particles of solid hydrogen. The dielectric function makes it clear that pure H2 dust would contribute to IR extinction predominantly by scattering starlight, rather than absorbing it, and the characteristic IR absorption s...

Kettwich, Cassie; Walker, Mark; Tuntsov, Artem

2015-01-01

248

Para-Sexiphenyl Layers Grown On Light Sensitive Polymer Substrates  

NASA Astrophysics Data System (ADS)

In this contribution the deposition of Para-sexiphenyl (PSP) layers on poly (diphenyl bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate) (PPNB) by Hot Wall Epitaxy (HWE) is reported. It is demonstrated that pre-treating the substrate by UV-illumination induces a clear change in the morphology of the grown PSP films due to the polarity modification of the substrate surface. PPNB surface polarity increases when illuminated by UV via photo-Fries rearrangement. By detailed atomic force microscopy analysis the influence on the growth kinetics by the substrate temperature, deposition time and particularly by the UVtreatment of the substrate was investigated. A high crystalline order of the films is underlined by the observation of growth spirals and terraced islands, providing mono-layer step heights of standing PSP-molecules.

Hernandez-Sosa, G.; Simbrunner, C.; Höfler, T.; Moser, A.; Werzer, O.; Kunert, B.; Trimmel, G.; Kern, W.; Resel, R.; Sitter, H.

249

Photophysics of Isolated Nanostructured Poly(para-phenylenevinylene)  

NASA Astrophysics Data System (ADS)

The photophysics of bulk poly(para-phenylenevinylene) (PPV) films are compared to those of isolated PPV chains incorporated into a self-assembled lyotropic liquid-crystalline matrix ordered at the nanometer scale (nano-PPV). As expected, the optical spectra and the spectral dependence of the photoluminescence (PL)-detected magnetic resonance (PLDMR) show that the nano-PPV structure largely eliminates the interchain charge transfer excitons, allowing only intrachain migration of singlet excitons (SE´s). The observed unusual sublinear dependence of the PL on the excitation density in nano-PPV indicates that these SE´s are strongly nonradiatively quenched at trapped polarons. A rate-equation model based on this quenching mechanism provides strong evidence that this quenching process is responsible for the polaron PLDMR. *Operated by ISU for the USDOE under Contract W-7405-Eng-82.

List, Emil J. W.; Partee, Jonathan; Shinar, Joseph; Zojer, Egbert; Markart, P.; Gadermaier, Christoph; Leising, Guenther; Smith, R.; Gin, D.; Graupner, Wilhelm

2000-03-01

250

Technique to match mantle and para-aortic fields  

SciTech Connect

A technique is described to match the mantle and para-aortic fields used in treatment of Hodgkin's disease, when the patient is treated alternately in supine and prone position. The approach is based on referencing the field edges to a point close to the vertebral column, where uncontrolled motion is minimal and where accurate matching is particularly important. Fiducial surface points are established in the simulation process to accomplish the objective. Dose distributions have been measured to study the combined effect of divergence differences, changes in body angulation and setup errors. Even with the most careful technique, the use of small cord blocks of 50% transmission is an advisable precaution for the posterior fields.

Lutz, W.R.; Larsen, R.D.

1983-11-01

251

ParaText : scalable text analysis and visualization.  

SciTech Connect

Automated analysis of unstructured text documents (e.g., web pages, newswire articles, research publications, business reports) is a key capability for solving important problems in areas including decision making, risk assessment, social network analysis, intelligence analysis, scholarly research and others. However, as data sizes continue to grow in these areas, scalable processing, modeling, and semantic analysis of text collections becomes essential. In this paper, we present the ParaText text analysis engine, a distributed memory software framework for processing, modeling, and analyzing collections of unstructured text documents. Results on several document collections using hundreds of processors are presented to illustrate the exibility, extensibility, and scalability of the the entire process of text modeling from raw data ingestion to application analysis.

Dunlavy, Daniel M.; Stanton, Eric T.; Shead, Timothy M.

2010-07-01

252

Nuevos sistemas de frecuencia intermedia para el IAR  

NASA Astrophysics Data System (ADS)

Se presenta el diagrama en bloques de los nuevos sistemas de Frecuencia Intermedia para los dos radiómetros instalados en el IAR. Entre las características más importantes del sistema podemos mencionar la posibilidad de conectar cualquiera de las dos antenas a los ``backend" disponibles: analizador espectral de alta resolución (META II) de 0,05 Hz, autocorrelador de 1008 canales y contínuo. Se incorporan al sistema nuevos sintetizadores de frecuencia implementados con PLL y la moderna técnica de síntesis digital directa. Por último, el conjunto del sistema es susceptible de ser configurado por las computadoras de adquisición de datos, supervisadas por otra, que entrega el estado de funcionamiento actual y evita la selección de configuraciones incorrectas por parte del usuario.

Olalde, J. C.; Perilli, D.; Larrarte, J. J.

253

Procedimento para utilizar a assinatura do IB no Webmail 1) Acesse a sua conta no webmail;  

E-print Network

1/5 Procedimento para utilizar a assinatura do IB no Webmail 1) Acesse a sua conta no webmail; 2 clique no ícone imagem; 8) Na tela seguinte, digite a seguinte URL da imagem: www.ib.usp.br/webmail/assinatura.jpg A imagem da assinatura do IB será exibida. Clique em OK para voltar para a tela de configuração e salve

Morandini, Andre C.

254

The existence of all three ParaHox genes in the clitellate annelid, Perionyx excavatus  

Microsoft Academic Search

A ParaHox gene cluster is composed of three genes (Gsx, Xlox, and Cdx). It has been proposed that all three ParaHox genes were present in the last common ancestor to the lophotrochozoan protostomes and the deuterostomes and that gene loss event has occurred in the ecdysozoan lineage. In this paper, we report the existence of all three ParaHox genes in

Bum Joon Park; Sung-Jin Cho; Eun Sik Tak; Bo Eun Lee; Soon Cheol Park

2006-01-01

255

Nueva opción de tratamiento para mujeres jóvenes con cáncer de seno sensible a las hormonas  

Cancer.gov

Un fármaco usado para el tratamiento del cáncer de seno (mama), conocido como exemestano, es más eficaz que tamoxifeno, un fármaco preventivo de uso común para el cáncer de seno, en la prevención de la recidiva del cáncer de seno en mujeres jóvenes que también reciben tratamiento posoperativo para suprimir el funcionamiento ovárico. Los resultados de este estudio se presentaron en mujeres que tenían un tipo de cáncer de seno en estadio inicial sensible al tratamiento hormonal.

256

Tcnicas de Investigacin y Manejo para la Conservacin de las Tortugas Marinas 199 Tcnicas de Investigacin y Manejo para la Conservacin de las Tortugas Marinas  

E-print Network

instalaciones y que se dispone de suficientes recursos financieros para el mantenimiento. Además deberán considerarse las siguientes advertencias: 1. Los viveros son muy costosos tanto en recursos financieros como

Prestwich, Ken

257

Methane Production of Different Forages in In vitro Ruminal Fermentation.  

PubMed

An in vitro rumen batch culture study was completed to compare effects of common grasses, leguminous shrubs and non-leguminous shrubs used for livestock grazing in Australia and Ghana on CH4 production and fermentation characteristics. Grass species included Andropodon gayanus, Brachiaria ruziziensis and Pennisetum purpureum. Leguminous shrub species included Cajanus cajan, Cratylia argentea, Gliricidia sepium, Leucaena leucocephala and Stylosanthes guianensis and non-leguminous shrub species included Annona senegalensis, Moringa oleifera, Securinega virosa and Vitellaria paradoxa. Leaves were harvested, dried at 55°C and ground through a 1 mm screen. Serum bottles containing 500 mg of forage, modified McDougall's buffer and rumen fluid were incubated under anaerobic conditions at 39°C for 24 h. Samples of each forage type were removed after 0, 2, 6, 12 and 24 h of incubation for determination of cumulative gas production. Methane production, ammonia concentration and proportions of VFA were measured at 24 h. Concentration of aNDF (g/kg DM) ranged from 671 to 713 (grasses), 377 to 590 (leguminous shrubs) and 288 to 517 (non-leguminous shrubs). After 24 h of in vitro incubation, cumulative gas, CH4 production, ammonia concentration, proportion of propionate in VFA and IVDMD differed (p<0.05) within each forage type. B. ruziziensis and G. sepium produced the highest cumulative gas, IVDMD, total VFA, proportion of propionate in VFA and the lowest A:P ratios within their forage types. Consequently, these two species produced moderate CH4 emissions without compromising digestion. Grazing of these two species may be a strategy to reduce CH4 emissions however further assessment in in vivo trials and at different stages of maturity is recommended. PMID:25049482

Meale, S J; Chaves, A V; Baah, J; McAllister, T A

2012-01-01

258

Influence of heat processing on the bioaccessibility of zinc and iron from cereals and pulses consumed in India.  

PubMed

Influence of heat processing on the bioaccessibility of zinc and iron from food grains consumed in India was evaluated. Cereals - rice (Oryza sativa), finger millet (Eleusine coracana), sorghum (Sorghum vulgare), wheat (Triticum aestivum), and maize (Zea mays), and pulses - chickpea (Cicer arietinum) - whole and decorticated, green gram (Phaseolus aureus) - whole and decorticated, decorticated black gram (Phaseolus mungo), decorticated red gram (Cajanus cajan), cowpea (Vigna catjang), and French bean (Phaseolus vulgaris) were examined for zinc and iron bioaccessibility by employing an in vitro dialysability procedure. Both pressure-cooking and microwave heating were tested for their influence on mineral bioaccessibility. Zinc bioaccessibility from food grains was considerably reduced upon pressure-cooking, especially in pulses. Among cereals, pressure-cooking decreased zinc bioaccessibility by 63% and 57% in finger millet and rice, respectively. All the pressure-cooked cereals showed similar percent zinc bioaccessibility with the exception of finger millet. Bioaccessibility of zinc from pulses was generally lower as a result of pressure-cooking or microwave heating. The decrease in bioaccessibility of zinc caused by microwave heating ranged from 11.4% in chickpea (whole) to 63% in cowpea. Decrease in zinc bioaccessibility was 48% in pressure-cooked whole chickpea, 45% and 55% in pressure-cooked or microwave-heated whole green gram, 32% and 22% in pressure-cooked or microwave-heated decorticated green gram, and 45% in microwave-heated black gram. Iron bioaccessibility, on the other hand, was significantly enhanced generally from all the food grains studied upon heat treatment. Thus, heat treatment of grains produced contrasting effect on zinc and iron bioaccessibility. PMID:17317519

Hemalatha, Sreeramaiah; Platel, Kalpana; Srinivasan, Krishnapura

2007-01-01

259

Comparison of Hup Trait and Intrinsic Antibiotic Resistance for Assessing Rhizobial Competitiveness Axenically and in Soil  

PubMed Central

The competitiveness of dual-strain inocula of cowpea rhizobia for nodulation of Vigna unguiculata (L.) Walp. was studied axenically between one slow-growing strain (P132, HP147, 401, or 22A1) and one fast-growing strain (176A26 or 176A28) at logarithmic inoculum ratios ranging from 103 to 10?3. Nodule infectivity was determined by multiple intrinsic antibiotic resistance, since both fast-growing strains were sensitive. Different hydrogen uptake (Hup) efficiencies of dual-strain inocula allowed for the comparison of an indirect rapid method. Infectivity data based on antibiotic resistance and Hup efficiency were fit to linearized fractile plots of log-normal distributions to determine CAB (percent infectivity at a 1:1 inoculum density) or I50 (inoculum ratio at 50% infectivity). The slow growers were always better competitors and had I50 values which ranged from 7 to 160,000 and CAB values which ranged from 62 to 97%. P132 was the best competitor of all those tested. Antibiotic resistance and Hup efficiency methods were in agreement with 401 (Hup?) and 176A26 (Hup+), but the Hup efficiency method overestimated the I50 index with 22A1 (Hup?) and 176A28 (Hup+). The competition of each of the four slow-growing strains with indigenous rhizobia was examined in Cajanus cajan from three tropical soils. Nodule infectivity for all strains ranged from 42 to 96%, and P132 was the best competitor in all the soils. Hup efficiency overestimated infectivity by about 2-fold when Hup+ inocula (P132 and HP147) were used but underestimated infectivity by more than 100-fold when Hup? inocula (401 and 22A1) were used. Although the Hup trait has limited quantitative usage axenically, it is only qualitative in soil competition studies and can only be used with Hup+ inocula. PMID:16347016

El Hassan, G. A.; Hernandez, B. S.; Focht, D. D.

1986-01-01

260

Medicinal plants used for dogs in Trinidad and Tobago.  

PubMed

This paper documents ethnoveterinary medicines used to treat dogs in Trinidad and Tobago. In 1995, a 4-stage process was used to conduct the research and document the ethnoveterinary practices. Twenty-eight ethnoveterinary respondents were identified using the school-essay method, which is a modified rapid rural appraisal (RRA) technique. Semi-structured interviews were held with these respondents as well as with 30 veterinarians, 27 extension officers and 19 animal-health assistants and/or agricultural officers, and the seven key respondents that they identified. The final step involved hosting four participatory workshops with 55 of the respondents interviewed to discuss the ethnoveterinary data generated from the interviews and to determine dosages for some of the plants mentioned. Supplementary interviews were conducted in 1997 and 1998. Seeds of Carica papaya, and leaves of Cassia alata, Azadirachta indica, Gossypium spp., Cajanus cajan and Chenopodium ambrosiodes are used as anthelmintics. The anthelmintics Gossypium spp. and Chenopodium ambrosiodes are the most frequently used species. Crescentia cujete pulp, Musa spp. stem exudate, the inside of the pods of Bixa orellana, leaves of Cordia curassavica and Eclipta alba plant tops are used for skin diseases. Musa spp. stem exudate, seeds of Manilkara zapota, Pouteria sapota and Mammea americana and leaves of Cordia curassavica, Scoparia dulcis and Nicotiana tabacum are used to control ectoparasites. Dogs are groomed with the leaves of Cordia curassavica, Bambusa vulgaris and Scoparia dulcis. Psidium guajava buds and leaves and the bark of Anacardium occidentale are used for diarrhoea. Owners attempt to achieve milk let-down with a decoction of the leaves of Stachytarpheta jamaicensis. The plant uses parallel those practised in human folk medicine in other Caribbean countries and in other tropical countries. PMID:10821961

Lans, C; Harper, T; Georges, K; Bridgewater, E

2000-06-12

261

Methane Production of Different Forages in In vitro Ruminal Fermentation  

PubMed Central

An in vitro rumen batch culture study was completed to compare effects of common grasses, leguminous shrubs and non-leguminous shrubs used for livestock grazing in Australia and Ghana on CH4 production and fermentation characteristics. Grass species included Andropodon gayanus, Brachiaria ruziziensis and Pennisetum purpureum. Leguminous shrub species included Cajanus cajan, Cratylia argentea, Gliricidia sepium, Leucaena leucocephala and Stylosanthes guianensis and non-leguminous shrub species included Annona senegalensis, Moringa oleifera, Securinega virosa and Vitellaria paradoxa. Leaves were harvested, dried at 55°C and ground through a 1 mm screen. Serum bottles containing 500 mg of forage, modified McDougall’s buffer and rumen fluid were incubated under anaerobic conditions at 39°C for 24 h. Samples of each forage type were removed after 0, 2, 6, 12 and 24 h of incubation for determination of cumulative gas production. Methane production, ammonia concentration and proportions of VFA were measured at 24 h. Concentration of aNDF (g/kg DM) ranged from 671 to 713 (grasses), 377 to 590 (leguminous shrubs) and 288 to 517 (non-leguminous shrubs). After 24 h of in vitro incubation, cumulative gas, CH4 production, ammonia concentration, proportion of propionate in VFA and IVDMD differed (p<0.05) within each forage type. B. ruziziensis and G. sepium produced the highest cumulative gas, IVDMD, total VFA, proportion of propionate in VFA and the lowest A:P ratios within their forage types. Consequently, these two species produced moderate CH4 emissions without compromising digestion. Grazing of these two species may be a strategy to reduce CH4 emissions however further assessment in in vivo trials and at different stages of maturity is recommended. PMID:25049482

Meale, S. J.; Chaves, A. V.; Baah, J.; McAllister, T. A.

2012-01-01

262

Features of the ancestral bilaterian inferred from Platynereis dumerilii ParaHox genes  

PubMed Central

Background The ParaHox gene cluster is the evolutionary sister to the Hox cluster. Whilst the role of the Hox cluster in patterning the anterior-posterior axis of bilaterian animals is well established, and the organisation of vertebrate Hox clusters is intimately linked to gene regulation, much less is known about the more recently discovered ParaHox cluster. ParaHox gene clustering, and its relationship to expression, has only been described in deuterostomes. Conventional protostome models (Drosophila melanogaster and Caenorhabditis elegans) are secondarily derived with respect to ParaHox genes, suffering gene loss and cluster break-up. Results We provide the first evidence for ParaHox gene clustering from a less-derived protostome animal, the annelid Platynereis dumerilii. Clustering of these genes is thus not a sole preserve of the deuterostome lineage within Bilateria. This protostome ParaHox cluster is not entirely intact however, with Pdu-Cdx being on the opposite end of the same chromosome arm from Pdu-Gsx and Pdu-Xlox. From the genomic sequence around the P. dumerilii ParaHox genes the neighbouring genes are identified, compared with other taxa, and the ancestral arrangement deduced. Conclusion We relate the organisation of the ParaHox genes to their expression, and from comparisons with other taxa hypothesise that a relatively complex pattern of ParaHox gene expression existed in the protostome-deuterostome ancestor, which was secondarily simplified along several invertebrate lineages. Detailed comparisons of the gene content around the ParaHox genes enables the reconstruction of the genome surrounding the ParaHox cluster of the protostome-deuterostome ancestor, which existed over 550 million years ago. PMID:19627570

Hui, Jerome HL; Raible, Florian; Korchagina, Natalia; Dray, Nicolas; Samain, Sylvie; Magdelenat, Ghislaine; Jubin, Claire; Segurens, Béatrice; Balavoine, Guillaume; Arendt, Detlev; Ferrier, David EK

2009-01-01

263

DYNA3D/ParaDyn Regression Test Suite Inventory  

SciTech Connect

The following table constitutes an initial assessment of feature coverage across the regression test suite used for DYNA3D and ParaDyn. It documents the regression test suite at the time of production release 10.1 in September 2010. The columns of the table represent groupings of functionalities, e.g., material models. Each problem in the test suite is represented by a row in the table. All features exercised by the problem are denoted by a check mark in the corresponding column. The definition of ''feature'' has not been subdivided to its smallest unit of user input, e.g., algorithmic parameters specific to a particular type of contact surface. This represents a judgment to provide code developers and users a reasonable impression of feature coverage without expanding the width of the table by several multiples. All regression testing is run in parallel, typically with eight processors. Many are strictly regression tests acting as a check that the codes continue to produce adequately repeatable results as development unfolds, compilers change and platforms are replaced. A subset of the tests represents true verification problems that have been checked against analytical or other benchmark solutions. Users are welcomed to submit documented problems for inclusion in the test suite, especially if they are heavily exercising, and dependent upon, features that are currently underrepresented.

Lin, J I

2011-01-25

264

Ab initio dynamics study of poly-para-phenylene vinylene  

NASA Astrophysics Data System (ADS)

We present an ab initio dynamics investigation within a density-functional perturbation theory framework of the properties of the conjugated polymer poly-para-phenylene vinylene (PPV) in both the isolated chain and crystalline states. The calculated results show that for an isolated chain, most of the vibrational modes correspond to experimentally observed modes in crystalline PPV. However, additional hitherto unidentified modes have been observed in experiment and our calculations on crystalline material have allowed us to assign these. We also present the results of calculations of the polarizability and permittivity tensors of the material, which are in reasonable agreement with the typical values for conjugated polymers. Dynamical Born effective charges [S. Baroni, S. de Gironcoli, A. Dal Corso, and P. Giannozzi, Rev. Mod. Phys. 73, 515 (2001)] are calculated and compared with atomic charges obtained from Mulliken population analysis [M. D. Segall, C. J. Pickard, R. Shah, and M. C. Payne, Mol. Phys. 89, 571 (1996)] and we conclude that effective charges are more appropriate for use in the study of the dynamics of the system. Notable differences are found in the infrared-absorption spectra obtained for the isolated chain and crystalline states, which can be attributed to the differences in the crystalline packing effects, which clearly play a key role in influencing the lattice dynamics of PPV.

Zheng, Guang; Clark, S. J.; Tulip, P. R.; Brand, S.; Abram, R. A.

2005-07-01

265

Para-hydrogen induced polarization in heterogeneous hydrogenationreactions  

SciTech Connect

We demonstrate the creation and observation ofpara-hydrogen-induced polarization in heterogeneous hydrogenationreactions. Wilkinson's catalyst, RhCl(PPh3)3, supported on eithermodified silica gel or a polymer, is shown to hydrogenate styrene intoethylbenzene and to produce enhanced spin polarizations, observed throughNMR, when the reaction was performed with H2 gas enriched in the paraspinisomer. Furthermore, gaseous phase para-hydrogenation of propylene topropane with two catalysts, the Wilkinson's catalyst supported onmodified silica gel and Rh(cod)(sulfos) (cod = cycloocta-1,5-diene;sulfos) - O3S(C6H4)CH2C(CH2PPh2)3) supported on silica gel, demonstratesheterogeneous catalytic conversion resulting in large spin polarizations.These experiments serve as a direct verification of the mechanism ofheterogeneous hydrogenation reactions involving immobilized metalcomplexes and can be potentially developed into a practical tool forproducing catalyst-free fluids with highly polarized nuclear spins for abroad range of hyperpolarized NMR and MRI applications.

Koptyug, Igor V.; Kovtunov, Kirill; Burt, Scott R.; Anwar, M.Sabieh; Hilty, Christian; Han, Song-I; Pines, Alexander; Sagdeev, Renad Z.

2007-01-31

266

Quadrupole Approximation for Para-Positronium in Relativistic Schrödinger Theory  

E-print Network

The non-relativistic energy levels of para-positronium are calculated in the quadrupole approximation of the interaction potential. This approximation technique takes into account the anisotropy of the electrostatic electron-positron interaction in the lowest order. The states due to different values of the quantum number $(l_z)$ of angular momentum are found to be no longer degenerate as is the case in the conventional theory. The physical origin of this elimination of the conventional degeneracy may intuitively be attributed to the state-dependent inertial \\emph{broadening} of the rotating charge clouds; the corresponding \\emph{anisotropic} deformation (in the quadrupole approximation) lowers then the negative electrostatic interaction energy. The result of this influence of anisotropy is that the states with $l_z=0$ adopt smaller binding energy whereas the states with maximal value of $|l_z|$ (for fixed principal quantum number $n$) have the largest binding energy within the angular momentum multiplet $(-|l_{z,\\mathrm{max}}| \\le l_z \\le |l_{z,\\mathrm{max}}|)$. This yields a certain kind of electric fine-structure splitting with the splitted RST levels being placed in a relatively narrow band around the (highly degenerated) conventional levels.

M. Mattes; M. Sorg

2011-09-11

267

Vibrational relaxation in jet-cooled para-alkylanilines  

NASA Astrophysics Data System (ADS)

Absorption and fluorescence spectra have been obtained for the 1B2(??*)?1A1 transition of a series of para-alkylanilines cooled in a supersonic free jet. The series consists of all p-n-alkylanilines through n-butyl- as well as p-isopropylaniline and aniline itself. For those members of the series having an alkyl chain length of three or greater, two distinct molecular conformations are found to be populated in the jet with roughly equal likelihood. Spectra of both the extended chain conformation [p-n-(t)-alkylanilines] and the coiled chain conformation [p-n-(g)-alkylanilines] show that two optically active aniline vibrations are largely unaffected by changes in the length and nature of the n-alkyl chain. One of these vibrations (the inversion motion of the -NH2 group) would be expected to be particularly weakly coupled to the torsions and bends of p-alkyl chain. Nonetheless, fluorescence spectra obtained when this vibration is excited in the 1B2 state show that intramolecular vibrational relaxation occurs into the chain modes within a nanosecond.

Powers, D. E.; Hopkins, J. B.; Smalley, R. E.

1980-05-01

268

Para-dichlorobenzene toxicity – a review of potential neurotoxic manifestations  

PubMed Central

Background: Para-dichlorobenzene (PDCB) is an active ingredient of mothballs, deodorizers and fumigants. Due to the easy availability of this chemical, there is a considerable risk for accidental or intentional toxic exposure. Recently, multiple cases of PDCB toxicity due to mothball ingestion were reported. PDCB toxicity can affect multiple organ systems including liver, kidneys, skin, lung and the central nervous system (CNS). CNS toxicity often results in leukoencephalopathy and heterogeneous neurological manifestations. Objectives: The objective of this study was to illustrate the clinical presentation, imaging findings, diagnosis and management of PDCB toxicity. Methods: We carried out a literature review of the pharmacological and toxicological properties of PDCB. Conclusions: PDCB and other aromatic hydrocarbons are capable of CNS tissue damage and in promoting functional neurological decline. While very little is currently known about prevalence of PDCB addiction, it cannot be ruled out that its illicit use among young people is under-recognized. The number of cases of PDCB toxicity might also rise due to the increasing industrial and domestic use of this chemical. PMID:24790648

Dubey, Divyanshu; Sharma, Vibhash D.; Pass, Steven E.; Sawhney, Anshudha

2014-01-01

269

Analise de Mecanismos de CAC para Redes ATM Michel Ferreira Abdalla  

E-print Network

An´alise de Mecanismos de CAC para Redes ATM Michel Ferreira Abdalla Department of Computer Science~ao em redes ATM. Uma classifica¸c~ao destes mecanismos baseada no princ´ipio impl´icito neles utilizado encontrar em redes ATM, estes mecanismos apre- sentam resultados bastante superestimados para a capaci- dade

Abdalla, Michel Ferreira

270

MiCCS4Mobile Middleware para Comunicao e Coordenao Segura em Redes Ad-hoc  

E-print Network

MiCCS4Mobile Middleware para Comunicação e Coordenação Segura em Redes Ad-hoc com Participantes desenvolvimento de aplicações móveis. Algumas aplicações exploram protocolos de redes sem fios e a mobilidade dos dispositivos para aumentar as suas funciona- lidades. A classe de protocolos de redes sem fios com dispositivos

Neves, Nuno

271

Uma Implementac~ao Concorrente de Redes Neurais PCA para Compress~ao de Imagens  

E-print Network

Uma Implementac¸~ao Concorrente de Redes Neurais PCA para Compress~ao de Imagens Willian Y. Honda1 dados. Considerando uma rede neural que aproxima os resultados da PCA cl´assica, a principal contribuic¸~ao deste trabalho consiste em apresentar um modelo de implementac¸~ao concorrente para essa rede. Um estudo

Pereira, Marcone Corrêa

272

Opciones de cirugía para mujeres con CDIS o con cáncer de seno  

Cancer.gov

Contiene información sobre los tipos de cirugía de seno, como la operación para conservar el seno y la mastectomía, y ayuda a las mujeres diagnosticadas con CDIS o con cáncer de seno a decidir cuál cirugía es la más conveniente para ellas.

273

MEDIDA DE LA CSF CROMTICA Y ACROMTICA CON MONITORES ORDINARIOS PARA PRCTICAS DE LABORATORIO  

E-print Network

comerciales, de prestaciones inferiores, que presentan problemas para generar estímulos para experimentos distinguir la red de un campo uniforme. La CSF se obtiene como la inversa del contraste global en el espacio imposibilita su uso durante un experimento, por lo que trabajamos con estímulos pre-calculados. MEDIDA El

Escolano, Francisco

274

TRIBUNAL REGIONAL FEDERAL DA 1 REGIO XIV CONCURSO PBLICO PARA PROVIMENTO DE CARGO DE  

E-print Network

TRIBUNAL REGIONAL FEDERAL DA 1ª REGIÃO XIV CONCURSO PÚBLICO PARA PROVIMENTO DE CARGO DE JUIZ FEDERAL SUBSTITUTO ­ 1ª REGIÃO Edital de Retificação O Desembargador Federal Presidente da Comissão de Concurso do XIV Concurso Público para provimento de cargo de Juiz Federal Substituto do Tribunal Regional

Maier, Rudolf Richard

275

CAPACITACIÓN A LIDERES DE LAS COMUNIDADES RURALES PARA LLEGAR CON EL MENSAJE  

Microsoft Academic Search

Para lograr introducir en nuestras comunidades rurales cualquiera información técnica o participativa debemos de pensar en forma de desarrollo futuro buscando alternativas que propicien una buena capacitación en este caso para la introducción de nuevas técnicas, cultivos, utilización de los recursos racionales e introducción de otros de mejor resultados y hasta hacer de los diferentes productores de comunidades una escuela

Jorge Alfredo González Pérez

2010-01-01

276

Evaluación de dos esquemas de inmunización para la Evaluación de dos esquemas de inmunización para la Evaluación de dos esquemas de inmunización para la Evaluación de dos esquemas de inmunización para la producción de sueros producción de sueros producción de sueros producción de sueros hiperinmunes contra hiperinmunes contra hiperinmunes contra hiperinmunes contra Leptospira Leptospira Leptospira Leptospira interrogans interrogans interrogans interrogans  

Microsoft Academic Search

Los antisueros policlonales utilizados para el serotipaje de cepas de Leptospira deben caracterizarse por un alto nivel de aglutininas específicas a un serogrupo o serovar determinado y una baja reactividad cruzada frente al resto de las serovariedades. El presente trabajo se desarrolló con el objetivo de evaluar y comparar dos de los esquemas de inmunización reportados para la obtención de

Andrés González; Niurka Batista; Manuel Ortíz; Vismark Torres; Juan F. Infante; Marta González

2002-01-01

277

Planificación y Lenguaje para la Iniciación a la Programación Orientada a Objetos  

Microsoft Academic Search

Resumen— La programación orientada a objetos suele enseñarse después de la procedimental en los planes de estudio actuales. La parte práctica de una asignatura de programación suele consistir en la realización de programas. Elegir un lenguaje para cada paradigma, uno orientado a objetos para ambos o un lenguaje híbrido, presenta diferentes problemas de aprendizaje. Además, muchos lenguajes comerciales orientados a

Luis Fernández Muñoz; Rosalía Peña Ros; J. Ángel Velázquez-Iturbide

278

Extensi'on del c'alculo para la Modelizaci'on de Procesos Concurrentes  

E-print Network

casos como para pensar en 'el como recurso expresi­ vo adecuado para la programaci'on, vamos a definir un lenguaje de m'as alto nivel, ALEPH, que posee los recursos expresivos deseables en programaci'on y

Alpuente, María

279

Notas de Aula: Fisica para Biologia: PRELIMINAR Nestor Caticha e Osame Kinouchi  

E-print Network

Notas de Aula: F´isica para Biologia: PRELIMINAR Nestor Caticha e Osame Kinouchi 27 de junho de´ificas nem discutir a biologia por tr´as destas aplica¸c~oes. Esperamos que isso seja estudado em outras problema maior para estudantes de biologia pode ser o tratamento matem´atico. Usaremos novamente o

Caticha, Nestor

280

Arquitectura Multiagente para la Gestin de Informacin de Awareness en Entornos CSCL  

E-print Network

Arquitectura Multiagente para la Gestión de Información de Awareness en Entornos CSCL Iván D razón, este artículo presenta una Arquitectura Multiagentes como alternativa para la gestión de usuario mediante una Arquitectura Multiagente que permite gestionar la información de Conciencia Grupal o

Guerrero, Luis

281

Uso del conocimiento de la arquitectura Fermi para mejorar el rendimiento en aplicaciones  

E-print Network

Uso del conocimiento de la arquitectura Fermi para mejorar el rendimiento en aplicaciones CUDA Yuri arquitectura Fermi de NVIDIA introduce nuevos criterios a la hora de selec- cionar los tama~nos y la geometr arquitectura para aplicar adecua- damente t´ecnicas de optimizaci´on de c´odigo. Fermi [2] [3] [4] es la

Llanos, Diego R.

282

Desarrollo y Aplicacin de un ndice de Calidad de Agua para ros en Puerto Rico  

E-print Network

Desarrollo y Aplicación de un Índice de Calidad de Agua para ríos en Puerto Rico por Francisco J en INGENIERÍA CIVIL UNIVERSIDAD DE PUERTO RICO RECINTO UNIVERSITARIO DE MAYAGÜEZ 2009 Aprobado por trabajo presenta la elaboración de un Índice de Calidad de Agua (ICA) para los ríos en Puerto Rico. Dicho

Gilbes, Fernando

283

SELEÇÃO PRECOCE DE CLONES DE BATATA PARA CARACTERES DO TUBÉRCULO1  

Microsoft Academic Search

RESUMO - Nos últimos anos, foi despertado um grande interesse para o pr ocessamento da batata na forma de fritura no Brasil. Visando à obtenção de culti- vares nacionais que atendam aos padrões de qualidade culinária exigidos pelas indústrias de processamento, os programas de melhoramento de batata têm estabelecido estratégias para a redução de custos e de tempo. Reali- zou-se

GEOVANI BERNARDO AMARO; CÉSAR AUGUSTO; BRASIL PEREIRA; EDUARDO DE SOUZA LAMBERT; LEITE MARTINS

284

Un test adaptativo informatizado para evaluar el conocimiento de inglés escrito: diseño y comprobaciones psicométricas  

Microsoft Academic Search

El presente artículo muestra el trabajo desarrollado para diseñar un test adaptativo informatizado que evalúa el nivel de conocimientos de inglés escrito en castellano-parlantes. Se describe el proceso se- guido para la elaboración del banco de ítems, la comprobación de sus propiedades psicométricas, el ajuste obtenido al modelo logístico de tres parámetros y las principales características del algoritmo adaptativo. Se

Julio Olea; Francisco José Abad; Vicente Ponsoda; M. Carmen Ximénez

2004-01-01

285

Interpoladores Espaciais para Gerao de Superfcies de Densidade Populacional na Amaznia Brasileira: problemas e perspectivas.  

E-print Network

Interpoladores Espaciais para Geração de Superfícies de Densidade Populacional na Amazônia de superfícies de densidade populacional na Amazônia Brasileira. Os principais problemas de mais utilizados para gerar superfícies de densidade populacional. Discute-se a aplicabilidade destes

Camara, Gilberto

286

Bases morfofisiológicas para maior tolerância dos híbridos modernos de milho a altas densidades de plantas  

Microsoft Academic Search

RESUMO O lançamento de híbridos de milho tolerantes ao aumento da densidade de plantas contribuiu para o incremento do potencial produtivo da cultura na segunda metade do século XX. Objetiva-se com esta revisão de literatura discutir características morfológicas, fisiológicas, fenológicas e alométricas que contribuíram para maior adaptação do milho a elevadas densidades de plantas. Os processos de seleção utilizados pelos

Luís Sangoi; Milton Luiz de Almeida; Paulo Regis Ferreira da Silva; Gilber Argenta

2002-01-01

287

Escalamiento en la Densidad de Im agenes para una Reconstrucci on Tridimensional  

E-print Network

Escalamiento en la Densidad de Im#19;agenes para una Reconstrucci#19;on Tridimensional Luis Gerardo microscopio electr#19;onico de transmisi#19;on. El escalamiento en la densidad es un paso previo para usar semejante, a una densidad cero y una varianza arbitraria de valor 100. Roseman et al [6] simplemente

Fraga, Luis Gerardo de la

288

Metodología para el Análisis y Diseño de Sistemas Multi Agente Robóticos: MAD-Smart  

Microsoft Academic Search

RESUMEN En este artículo se describe la metodología para el desarrollo de Sistemas Multi-Agente Robóticos MAD-Smart y se desarrollan algunos ejemplos para visualizar algunas de sus car acterísticas. La metodología buscar dar cobertura en la fase de con ceptuación, análisis y diseño mediante la definición de un conj unto de actividades que ayudan al desarrollador a entender mejor el problema

Marcela Vallejo Valencia; John Fredy; Ochoa Gómez; Términos Generales

289

The effects of para-chlorophenylalanine on brain serotonin, food intake, and U-Maze behavior  

Microsoft Academic Search

The effects of the serotonin depleting drug dl para-chlorophenylalanine on conditioned alternation in the U-Maze were examined. Rats given para-chlorophenylalanine and nondrugged rats received reward contingent upon alternating choices between the left and right maze arms.

Robert A. McFarlain; J. M. Bloom

1972-01-01

290

Livro de actividades em ToonTalk para o pré-escolar  

Microsoft Academic Search

Como orientação para os educadores, foi desenvolvido um conjunto de actividades adequadas a contextos de educação pré-escolar (crianças dos 3 aos 5 anos, na presença de educadores), que se apoiam no videojogo - ou videobrinquedo - ToonTalk. Para permitir uma fácil compreensão e acompanhamento por parte de crianças e educadores, foi então desenvolvida uma forma gráfica de transmitir essas actividades,

Leonel Morgado; Maria Gabriel Bulas Cruz; Ana Teresa Tavares; Christophe Moura

291

Plastic debris ingestion by sea turtle in Para??ba, Brazil  

Microsoft Academic Search

Coastal gill net entanglement and debris intake are important threats to the survival of sea turtles. Two sea turtles (Lepidochelys olivacea and Chelonia mydas) were found stranded along the coast of Para??ba. After necropsy, plastic debris were found in the stomach. The debris is described. This is the first record of this sort of problem for the Para??ba littoral.

Rita Mascarenhas; Robson Santos; Douglas Zeppelini

2004-01-01

292

Accesibilidad para personas con debilidad visual Mac OS X Snow Leopard  

E-print Network

Accesibilidad para personas con debilidad visual Mac OS X Snow Leopard ASIC ­ 18 de noviembre de LEOPARD Al igual que otros sistemas operativos, MAC OS X Snow Leopard ofrece algunas ayudas para que las debilidad visual Mac OS X Snow Leopard ASIC ­ 18 de noviembre de 2010 Pág. 2 de 25 1. Recomendaciones

Fernández de Córdoba, Pedro

293

PROPUESTAS PARA EL PERFECCIONAMIENTO DEL CÁLCULO DE LOS COSTOS EN LA EMPRESA FORESTAL INTEGRAL GUANTÁNAMO  

Microsoft Academic Search

El trabajo se desarrollo en la Empresa Forestal Integral Guantánamo. Para la realización de la propuesta se analizó el sistema de costo que se utiliza y su aplicación en las 3 Unidades Básicas de Producción Industrial con que cuentan. Estas unidades para realizar su actividad productiva tienen como punto de partida la demanda que existe por parte de los organismos

Rebeca Judith Gabriel Pellicier; María del Pilar Garzón Wilson

2011-01-01

294

Corynebacterium diphtheriae diphtheriae diphtheriae diphtheriae, empleados en la , empleados en la , empleados en la , empleados en la producción de vacunas para uso humano producción de vacunas para uso humano producción de vacunas para uso humano producción de vacunas para uso humano  

Microsoft Academic Search

En el presente estudio se evaluó el método de congelación a -70ºC para la preservación de Bordetella pertussis y Corynebacterium diphtheriae. Para verificar el sustento de los cultivos se realizó un adecuado control de calidad, que incluyó comprobación de pureza, viabilidad y estabilidad de las propiedades de interés. En este trabajo se probaron diferentes formulaciones. Se seleccionó la que arrojó

Elsie Iglesias; Yilian Plasencia; Teresita Morales; Luis Izquierdo

2000-01-01

295

AMIR-ST: Propuesta de una Aproximación Metodológica para la Ingeniería de Requisitos de Sistemas Telemáticos  

Microsoft Academic Search

Resumen En el presente artículo se propone a AMIR-ST (Aproximación Metodológica para la Ingeniería de Requisitos de Sistemas Telemáticos), como un conjunto articulado y bien balanceado de métodos para el flujo de trabajo de Ingeniería de Requisitos, que constituye un proceso de desarrollo fundamentado en la interacción continua con los usuarios, la obtención del Modelo de Negocio, el desarrollo de

Mario Fernando; Solarte Sarasty

296

Seguimiento de Objetos para la reconstrucción de Ambientes en 3D  

Microsoft Academic Search

Este documento presenta el estado del arte en el seguimiento de objetos por medio de visión artificial para generar ambientes reconstruidos en tres dimensiones. El proceso en general, es la consecución o el flujo cíclico de los procesos para llegar a los módulos de seguimiento y reconstrucción. Partiendo desde los dispositivos de visión que son quienes proporcionan al sistema la

Alvarez Tirado

297

Montaje de INTEGRAL -1 -Manual de Montaje para los Astrnomos de Soporte  

E-print Network

montado. No obstante, hay que tener en cuenta que esta sala se utiliza también para otros instrumentos, y explica el montaje del instrumento. Este documento complementa el "Instrument Change Checklist" del WHT utili- zación para las observaciones de esa noche con otros instrumentos. Los distintos pasos a ejecutar

298

MAEB 2012 Albacete, 8-10 de Febrero de 2012 Tecnicas de pruebas automaticas para  

E-print Network

. Para demostar el uso estas estrategias, se aplican a un algoritmo gen´etico estacionario, comprobando c algoritmo gen´etico con codificaci´on real [11], aun- que el enfoque planteado puede extenderse a otros AEsMAEB 2012 Albacete, 8-10 de Febrero de 2012 T´ecnicas de pruebas autom´aticas para algoritmos

Granada, Universidad de

299

Modelo de desarrollo de aplicaciones móviles basadas en videojuegos para la navegación de personas ciegas  

Microsoft Academic Search

Existe una necesidad real de contar con sistemas para que personas con discapacidad visual mejoren las habilidades de movilidad y orientación, es especial para que los niños puedan mejorar su autonomía en el futuro. Sin embargo, estos sistemas deben ser diseñados acorde a los objetivos, metodologías y recursos disponibles, así como también considerando los intereses y formas de interacción de

Jaime Sánchez; Luis Guerrero; Mauricio Sáenz; Héctor Flores

300

EVALUACIÓN DEL POTENCIAL AGROECOLÓGICO DE CAÑA DE AZÚCAR EN ARGENTINA PARA LA PRODUCCIÓN DE BIOCOMBUSTIBLES  

Microsoft Academic Search

En el presente trabajo se muestran los resultados obtenidos a partir de la evaluación del cultivo de Caña de Azúcar; La puesta en vigencia de las leyes argentinas, que fija incentivos específicos para este cultivo, reabren las posibilidades de retomar la producción de bioetanol anhidro para uso como combustible. El objetivo final del presente estudio es entonces, contribuir al uso

Renée Alicia Anschau; Noelia Flores Marco; Stella Maris Carballo; Jorge Hilbert

2010-01-01

301

Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media  

DOEpatents

A method for isolating and identifying modified para-nitrobenzyl esterases which exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase.

Arnold, Frances H. (Pasadena, CA); Moore, Jeffrey C. (Pasadena, CA)

1998-01-01

302

Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media  

DOEpatents

A method for isolating and identifying modified para-nitrobenzyl esterases which exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase.

Arnold, Frances H. (Pasadena, CA); Moore, Jeffrey C. (Pasadena, CA)

1999-01-01

303

Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media  

DOEpatents

A method is disclosed for isolating and identifying modified para-nitrobenzyl esterases. These enzymes exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase. 43 figs.

Arnold, F.H.; Moore, J.C.

1998-04-21

304

Para-nitrobenzyl esterases with enhanced activity in aqueous and nonaqueous media  

DOEpatents

A method is disclosed for isolating and identifying modified para-nitrobenzyl esterases which exhibit improved stability and/or esterase hydrolysis activity toward selected substrates and under selected reaction conditions relative to the unmodified para-nitrobenzyl esterase. The method involves preparing a library of modified para-nitrobenzyl esterase nucleic acid segments (genes) which have nucleotide sequences that differ from the nucleic acid segment which encodes for unmodified para-nitrobenzyl esterase. The library of modified para-nitrobenzyl nucleic acid segments is expressed to provide a plurality of modified enzymes. The clones expressing modified enzymes are then screened to identify which enzymes have improved esterase activity by measuring the ability of the enzymes to hydrolyze the selected substrate under the selected reaction conditions. Specific modified para-nitrobenzyl esterases are disclosed which have improved stability and/or ester hydrolysis activity in aqueous or aqueous-organic media relative to the stability and/or ester hydrolysis activity of unmodified naturally occurring para-nitrobenzyl esterase. 43 figs.

Arnold, F.H.; Moore, J.C.

1999-05-25

305

Um enfoque antropológico para o ensino de astronomia no nível médio  

NASA Astrophysics Data System (ADS)

Há uma enorme carência de materiais didático-pedagógicos em astronomia para professores do ensino médio, sobretudo materiais que explorem também aspectos humanísticos. A origem do Universo é um bom exemplo desta constatação central. Embora tal origem teve explicações culturais diversas, os professores não têm informações sobre isso e muito menos material que trabalhe diferentes visões de mundo e treinamento que os capacite a abordá-las devidamente. Conseqüentemente o ensino de astronomia costuma ser tecnicista e dissociado do aspecto humano que alimenta o grande interesse e curiosidade que esses temas despertam. Aqui apresentamos propostas visando contribuir para reverter esse quadro e trabalhamos distintas visões de Universo: espontâneas, autóctones e científicas. Desenvolvemos práticas, materiais instrucionais e textos para viabilizar a adoção de um enfoque antropológico para o ensino de astronomia no nível médio, no qual as culturas humanística e científica sejam integradas de uma maneira contextualizada e eficaz para aquele ensino. Estas propostas foram aplicadas em um curso de treinamento para professores da rede pública de diferentes disciplinas. A receptividade dos professores à abordagem proposta e os resultados alcançados foram muito estimulantes. Destes, destacamos: produção de roteiros de atividades; desenvolvimento de práticas didático-pedagógicas específicas (e.g., encenação de mitos; dança primordial guarani; "criação" de constelações e interpretações pluriculturais; etc.); e sugestões concretas para a efetiva realização de um ensino interdisciplinar contextualizado, onde questões cosmogônicas servem de mote para iniciar tal ensino. Discutimos estes resultados e como o enfoque adotado pode instrumentalizar os professores para leituras de mundo que incluem naturalmente aspectos culturais, sociais e históricos associados aos temas estudados. (PPGECNM/UFRN; PRONEX/FINEP; NUPA/USP; Temáticos/FAPESP)

Costa, G. B.; Jafelice, L. C.

2003-08-01

306

Construção de um catálogo de aglomerados abertos para estudo da dinâmica da estrutura espiral da Galáxia  

NASA Astrophysics Data System (ADS)

Os aglomerados abertos são objetos de grande valor para o estudo da dinâmica da Galáxia devido esses objetos terem uma faixa de idade relativamente ampla. O trabalho visa estudar a dinâmica da estrutura espiral da Galáxia principalmente através do uso desses aglomerados, uma vez que o estudo da cinemática desses objetos é fundamental para esse objetivo. Nosso grupo trabalha no sentido de construir uma base de dados de aglomerados abertos contendo coordenadas, distância, idade, movimentos próprios e velocidades radiais e já disponibiliza uma nova versão do catálogo de aglomerados abertos o qual é uma compilação de edições anteriores, principalmente Lynga (1987), Mermilliod (1995) e ESO-B (Lauberts 1982). Nossa amostra possui cerca de 1630 aglomerados, mas nem todos os parâmetros acima citados foram determinados em sua totalidade. Para determinarmos esses parâmetros, derivamos as cores intrínsecas das estrelas membro de cada aglomerado a partir de seus tipos espectrais (busca feita no SIMBAD) obtendo assim o excesso de cor individual. A distribuição dos excessos de cor foi então utilizada para derivarmos o avermelhamento médio para cada aglomerado. De maneira similar, os tipos espectrais foram usados para estimar as magnitudes absolutas, e com as magnitudes absolutas e aparentes determinamos a respectiva distribuição do módulo de distância e finalmente a distância. Para determinar as idades foram confeccionados os diagramas cor-magnitude das estrelas de cada aglomerado onde foram superpostas a Seqüência Principal de Idade Zero (ZAMS). Superpomos a ZAMS de Schmidt-Kaler e isócronas de composição solar. Essas isócronas foram usadas para determinação das idades dos aglomerados. Uma vez que não temos ainda resultados finais, apresentamos então alguns diagramas cor-magnitude os quais foram usados para determinação, principalmente, da distância e idade dos aglomerados.

Carlos, I. M.; Lépine, J. R. D.

2003-08-01

307

COD, para-chlorophenol and toxicity removal from para-chlorophenol containing synthetic wastewater in an activated sludge unit.  

PubMed

Chlorinated phenolic compounds present in some chemical industry wastewaters cause severe toxic effects on the organisms and often are resistant to biological degradation. Synthetic wastewater containing different concentrations of para-chlorophenol (4-chlorophenol, 4-CP) was biologically treated in an activated sludge unit for COD, 4-CP and toxicity removal. Effects of feed 4-CP concentration on COD, 4-CP, toxicity removals and on sludge volume index were investigated at a constant sludge age of 20 days and hydraulic residence time (HRT) of 25 h. Resazurin method based on dehydrogenase activity was used for determination of the toxicity of the feed and effluent wastewater. COD and 4-CP removals were not affected by the presence of 4-CP in the wastewater up to feed 4-CP concentration of 925 mg l(-1) because of almost complete degradation of 4-CP yielding lower than 50 mg l(-1) 4-CP in the aeration tank. Percent COD, 4-CP and toxicity removals decreased and the effluent COD, 4-CP and toxicity levels increased with further increases in the feed 4-CP concentrations above 925 mg l(-1) because of inhibitory concentrations of 4-CP in the reactor. Biomass concentration in the aeration tank decreased and the sludge volume index (SVI) increased with feed 4-CP concentrations above 925 mg l(-1) resulting in lower COD and 4-CP removal rates. The rates of COD and 4-CP removals indicated substrate (4-CP) inhibition for the feed 4-CP concentrations above 925 mg l(-1) corresponding to the reactor 4-CP of above 200 mg l(-1). The system should be operated at the feed 4-CP concentrations of less than 900 mg l(-1) (4-CP(R) < 200 mg l(-1)) in order to obtain high rates and extents of COD, 4-CP and toxicity removals at a sludge age of 20 days and HRT of 25 h. PMID:16257114

Kargi, Fikret; Konya, Isil

2006-05-20

308

75 FR 34943 - Defense Federal Acquisition Regulation Supplement; Para-Aramid Fibers and Yarns Manufactured in a...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Domestic Para-Aramid Sewing Thread May Be of Lower Quality...specification to use para-aramid thread that was heavier and weaker than the commercial thread that was used in the commercial...Regulatory Flexibility Analysis One respondent...

2010-06-21

309

Aplicación del Teorema de Nekhorochev para tiempos de estabilidad en Mecánica Celeste  

NASA Astrophysics Data System (ADS)

En Mecánica Celeste, uno de los problemas centrales consiste en la determinación de los tiempos de estabilidad. El teorema de Nekhorochev proporciona un método para dicho estudio, para un sistema determinado por un hamiltoniano descripto en las variables acción-ángulo. El trabajo consiste en la acotación tanto del potencial perturbador y de la matriz hessiana del hamiltoniano integrable para determinar luego el tiempo de estabilidad de dicho sistema, donde por estabilidad se entiende la separación en norma infinito en el espacio de las acciones.

Miloni, O.; Núñez, J.; Brunini, A.

310

Colonization of wheat para-nodules by N2-fixing cyanobacterium Nostoc 2S9  

SciTech Connect

The treatment of wheat roots with 2,4-Dichlorophenoxyacetic acid led to the formation of tumor-like structures, para-nodules, which were readily colonized by cyanobacteria. The amount of cyanobacteria found on 2,4-D treated roots was 3.6 times higher than that found on untreated roots. Cyanobacteria penetrated the para-nodules by migrating in between loosely arranged cells that covered their surfaces or by penetrating the space at the junction of root and para-nodule. In plants treated with 2,4-D and co-cultivated with cyanobacteria, the rate of acetylene reduction was three times higher than in control plants.

Gantar, Miroslav; Elhai, Jeff

1999-03-01

311

Endovascular Treatment of a Ruptured Para-Anastomotic Aneurysm of the Abdominal Aorta  

SciTech Connect

We report a case of a ruptured para-anastomotic aortic aneurysm treated with implantation of a bifurcated stent-graft. A 72-year-old patient, who had undergone aortobifemoral bypass for aortoiliac occlusive disease 16 years ago, presented with a ruptured para-anastomotic aortic aneurysm. A bifurcated stent-graft was successfully deployed into the old bifurcated graft. This is the first report of a bifurcated stent-graft being placed through an 'end-to-side' anastomosed old aortobifemoral graft. Endovascular treatment of ruptured para-anastomotic aortic aneurysms can be accomplished successfully, avoiding open surgery which is associated with increased mortality and morbidity.

Sfyroeras, Giorgos S.; Lioupis, Christos, E-mail: lioupisC@vodafone.net.gr; Bessias, Nikolaos; Maras, Dimitris [Red Cross Hospital of Athens, Department of Vascular Surgery (Greece); Pomoni, Maria [Red Cross Hospital of Athens, Department of Radiology (Greece); Andrikopoulos, Vassilios [Red Cross Hospital of Athens, Department of Vascular Surgery (Greece)

2008-07-15

312

Modelos Teoricos de Linhas de Recombinacao EM Radio Frequencias Para Regioes H II  

NASA Astrophysics Data System (ADS)

Foram feitos modelos de linhas de recombinção provenientes de regiões HII nas frequências de rádio para distintos números quãnticos. Estes modelos consideram regrões H II esfericamente simétricas com variações radiais na densidade e temperatura eletrônica, efeitos de colisoes inelásticas dos eletrons (alargarnento por pressão), e afastarnento do equiliíbrio termodinâmico local. 0 bojetivo é construir o perfil da linha para cada ponto da nuvern e obter o valor médio resultante da sua convoluçã com o feixe da antena de tarnanho comparável corn o tarnanho angular da nuvern para posterIor cornpara o corn

Abraham, Z.; Cancoro, A. C. O.

1987-05-01

313

All the three ParaHox genes are present in Nuttallochiton mirandus (Mollusca: polyplacophora): evolutionary considerations.  

PubMed

The ParaHox gene cluster contains three homeobox genes, Gsx, Xlox and Cdx and has been demonstrated to be an evolutionary sister of the Hox gene cluster. Among deuterostomes the three genes are found in the majority of taxa, whereas among protostomes they have so far been isolated only in the phylum Sipuncula. We report the partial sequences of all three ParaHox genes in the polyplacophoran Nuttallochiton mirandus, the first species of the phylum Mollusca where all ParaHox genes have been isolated. This finding has phylogenetic implications for the phylum Mollusca and for its relationships with the other lophotrochozoan taxa. PMID:16331637

Barucca, Marco; Biscotti, Maria A; Olmo, Ettore; Canapa, Adriana

2006-03-15

314

Measurement of the formaldehyde ortho to para ratio in three molecular clouds  

NASA Technical Reports Server (NTRS)

Observations of ortho and para H2CO in two types of clouds, a warm cloud (Orion A) and two cold clouds (L183 and TMC1), are presented. The ortho to para ratio in Orion deduced from the H2(C-13)O data is about three, while that for TMC1 is about one and that for L183 is 1-2. The former value is in agreement with the value calculated from chemical models of ortho and para H2CO production. The values for the cold clouds are consistent with thermal equilibrium at a temperature slightly smaller than 10 K.

Kahane, C.; Lucas, R.; Frerking, M. A.; Langer, W. D.; Encrenaz, P.

1984-01-01

315

Descripción de la zona de alta difusión en un modelo bidimensional para hojas de corriente  

NASA Astrophysics Data System (ADS)

Los modelos bidimensionales para describir hojas de corriente de alta simetría no suministran una descripción detallada de las regiones donde la difusión es considerablemente importante. Tal es el caso de los modelos desarrollados en la década del '60 por Sweet, Parker, Petschek y Sonnerup. En esta comunicación presentamos una solución de las ecuaciones MHD en el entorno del origen, construyendo series bidimensionales para todas las magnitudes físicas involucradas. Valiéndonos de la alta simetría y de las características del problema, logramos reducir el número de coeficientes a calcular. Utilizamos un programa autoconsistente para extender el cálculo a regiones vecinas con difusión moderada o despreciable.

Montero, M. F.; Paola, C. A.; Platzeck, A. M.

316

Algoritmos genéticos para la resolución de problemas de Programación por Metas Entera. Aplicación a la Economía de la Educación  

Microsoft Academic Search

En este trabajo se presenta un algoritmo genético para la resolución de problemas de Programación por Metas Entera. Este tipo de problemas presentan en general un gran número de dificultades para su resolución utilizando algoritmos tradicionales de Programación Entera, siendo en la mayoría de los casos de problemas reales demasiado costosa computacionalmente para afrontarla con garantías. Sin embargo, se mostrará

Rafael Caballero; Julián Molina Luque; Angel Torrico González; Trinidad Gómez Nuñez

317

Evaluación de la facilitación del comercio y el transporte: Una herramienta práctica para su implementación en los países  

Microsoft Academic Search

En este documento se presenta una herramienta para evaluar los obstáculos en las cadenas de abastecimiento internacional y las medidas necesarias para superarlos. Esta herramienta se ha diseñado para los grupos interesados en la facilitación del comercio y la logística en los países en vías de desarrollo, tales como los oficiales de los gobiernos responsables de formular políticas, los especialistas

Banco Interamericano de Desarrollo

2010-01-01

318

Reglas y Estrategias de Transformaci'on para Programas L'ogico--Funcionales  

E-print Network

Alba U.P. Valencia Mayo de 2000 #12; #12; Resumen El problema de la integraci'on de la programaci'on l programaci'on declarativa. Para que los lenguajes declarativos sean ' utiles y puedan utilizarse en apli

Alpuente, María

319

Successful Mnemonics for "por"/"para" and Affirmative Commands with Pronouns.  

ERIC Educational Resources Information Center

Two mnemonic devices, "4A Rule" and "PERFECT," are described to simplify the learning of two grammar points: the placement of object pronouns with respect to commands and the distinction between "por" and "para." (five references) (LB)

Mason, Keith

1992-01-01

320

Communications: Development and characterization of a source of rotationally cold, enriched para-H3+  

NASA Astrophysics Data System (ADS)

In an effort to develop a source of H3+ that is almost entirely in a single quantum state (J =K=1), we have successfully generated a plasma that is enriched to ˜83% in para-H3+ at a rotational temperature of 80 K. This enrichment is a result of the nuclear spin selection rules at work in hydrogenic plasmas, which dictate that only para-H3+ will form from para-H2, and that para-H3+ can be converted to ortho-H3+ by subsequent reaction with H2. This is the first experimental study in which the H2 and H3+ nuclear spin selection rules have been observed at cold temperatures. The ions were produced from a pulsed solenoid valve source, cooled by supersonic expansion, and interrogated via continuous-wave cavity ringdown spectroscopy.

Tom, Brian A.; Mills, Andrew A.; Wiczer, Michael B.; Crabtree, Kyle N.; McCall, Benjamin J.

2010-02-01

321

Lo que usted debe saber antes de dar sus tejidos para investigación médica  

Cancer.gov

Contiene información sobre las cosas que usted debe saber y tener en cuenta al tomar una decisión de donar sus tejidos para investigación. El tejido puede incluir materiales de su cuerpo tales como piel, cabello, uñas, sangre y orina.

322

revised January 2009 Formulario de Inscripcin para Voluntario de 4-H  

E-print Network

,000 Sexo: ( ) Nativo Hawaiano o Islas del Pacifico ( ) Suburbio mas de 50,000 ( ) Masculino ( ) Blanco o para todos sin tener en cuenta raza, color, religión, sexo, orientación sexual, nacionalidad, edad

Tullos, Desiree

323

The design and synthesis of linear and macrocyclic Poly(para-arylene)s  

E-print Network

Poly(para-phenylene) (PPP) has generated sustained scientific interest due to its potential as a blue-emitting material for use in Organic Light Emitting Devices (OLEDs). However, due to its highly unfavorable solubility, ...

Batson, Joel Marcus

2013-01-01

324

ParaLearn: a massively parallel, scalable system for learning interaction networks on FPGAs  

Microsoft Academic Search

ParaLearn is a scalable, parallel FPGA-based system for learning interaction networks using Bayesian statistics. ParaLearn includes problem specific parallel\\/scalable algorithms, system software and hardware architecture to address this complex problem. Learning interaction networks from data uncovers causal relationships and allows scientists to predict and explain a system's behavior. Interaction networks have applications in many fields, though we will discuss them

Narges Bani Asadi; Christopher W. Fletcher; Greg Gibeling; John Wawrzynek; Wing H. Wong; Garry P. Nolan; Zoey Zhou

2010-01-01

325

v*i*d*a lab: repensar los objetos para la vida cotidiana  

Microsoft Academic Search

v*i*d*a lab (2005-2008) fue un taller experimental para estudiantes de diseño industrial de la Pontificia Universidad Javeriana de Bogotá (Colombia ) el cual exploró la concepción de nuevos objetos para la vida cotidiana tomando como punto de partida acercamientos de distintas disciplinas sobre el fenómeno de la vida. El presente texto expone las principales re flexiones del taller, sus ejercicios

Alejandro Tamayo

2009-01-01

326

Vers de nouvelles molécules antibactériennes. Intérêt du  para-guanidinoéthylcalix[4]arène  

Microsoft Academic Search

We present here the results concerning the antibacterial properties evaluation of para-guanidinoethylcalix[4]arene, compared with its constitutive monomer, the para-guanidinoethylphenol, and hexamidine (Hexomédine®), an antiseptic from the diamidine family widely used in therapeutic, chosen as a reference in this study for its resemblance in terms of functional groups. Antibacterial activities of those three compounds were evaluated by microdilution methods, in Mueller

M. Grare; M. Mourer; J.-B. Regnouf de Vains; R.-E. Duval

2006-01-01

327

Una alternativa terapéutica para micosis superficiales An alternative therapy to superficial mycosis  

Microsoft Academic Search

RESUMEN: se realizaron ensayos in-vivo e in-vitro de una solución saturada de sacarosa, eugenol (0.4%v\\/v) y polietilenglicol 400 (0.4%v\\/v) para determinar su acción fungicida sobre cepas productoras de micosis superficiales y su genotoxicidad. A suspensiones de Microsporum canis, Trichophyton rubrum, Trichophyton mentagrophytes y Epidermophyton flocosum, se les agregó la solución de ensayo y se hicieron cultivos en agar Sabouraud para

328

Desenvolvimento de um data logger portátil para sinais de movimento utilizando cartões MMC  

Microsoft Academic Search

Resumo - Neste artigo descreve-se o desenvolvimento de um data logger portátil para armazenagem de sinais relacionados ao movimento humano. O sistema utiliza cartões MultiMediaCard™ como dispositivo de armazenamento de alta capacidade e um microcontrolador com oito canais de conversão A\\/D para entrada dos sinais analógicos provenientes de sensores de movimento ou eletrodos de eletromiografia. A taxa de amostragem pode

R. E. M. Farias; J. P. J Conti; E. F. Manffra; P. Nohama

329

Curing of some epoxy-acrylate glycidyl ethers based on para-alkyl substituted phenols  

Microsoft Academic Search

Curing of epoxy-acrylate glycidyl ethers based on phenol and para-alkyl [?CH3, ?C(CH3)3, ?C9H19] substituted phenols in the presence of benzoyl peroxide was examined by differential scanning calorimetry at different heating rates. The tested monomers polymerize first as acrylic monomers and the reaction continues by the curing process only in the case of the epoxy-acrylate glycidyl ethers of para-alkyl substituted phenols,

C. N. Ca?caval; D. Ro?u; A. Stoleriu

1997-01-01

330

Hibridacion entre Filtros de Particulas y Meta-heuristicas para resolver problemas dinamicos  

E-print Network

optimizaci´on en los cuales la descripci´on del problema y/o los datos relevantes cambian en el tiempo. Para de adaptaci´on a cambios. Los m´etodos metaheur´isticos son procedimientos para explorar de forma´es de la hibridaci´on de los m´etodos anteriores. 1. Introducci´on Muchos problemas de optimizaci´on con

Pantrigo Fernández, Juan José

331

Un Algoritmo Genetico para Aprendizaje de un Sistema Basado en Reglas Difusas tipo  

E-print Network

Un Algoritmo Gen´etico para Aprendizaje de un Sistema Basado en Reglas Difusas tipo Takagi Sugeno F´atico, sistemas basados en reglas difusas TS, algoritmos gen´eticos, I. INTRODUCCI ´ON El modelado difuso ling´on por m´inimos cuadrados. Para la definici´on de la BD se emplear´a un Algoritmo Gen´etico que incluye

Granada, Universidad de

332

REPERTORIO DIDÁCTICO ESPAÑOL EN EL MARCO DE LA ENSEÑANZA PARA CUERDA EN EL CONSERVATORIO DE MADRID EN EL SIGLO XIX: OBRAS PARA VIOLÍN, VIOLONCELLO Y VIOLA  

Microsoft Academic Search

El análisis del conjunto de aportaciones al repertorio didáctico para violín, viola y violoncello, realizadas por autores vinculados al Conservatorio de Madrid durante el siglo XIX, pone de manifiesto la conexión de la enseñanza de cuerda con modelos europeos, al tiempo que representa un capítulo imprescindible dentro del estudio de la música instrumental española en esa centuria. El Método Elemental

Mónica García Velasco

2005-01-01

333

ALCHEMIST (Estudios sobre la Secuenciación e Identificación de Marcadores para el Mejoramiento de la Terapia Adjuvante para el Cáncer de Pulmón): Preguntas y respuestas  

Cancer.gov

ALCHEMIST comprende tres estudios clínicos integrados de medicina de precisión diseñados para identificar a personas con cáncer de pulmón en estadio inicial cuyos tumores tienen ciertos cambios genéticos poco comunes. También buscan evaluar si los tratamientos con medicamentos que combaten esos cambios moleculares pueden mejorar la supervivencia

334

Competing ParA structures space bacterial plasmids equally over the nucleoid.  

PubMed

Low copy number plasmids in bacteria require segregation for stable inheritance through cell division. This is often achieved by a parABC locus, comprising an ATPase ParA, DNA-binding protein ParB and a parC region, encoding ParB-binding sites. These minimal components space plasmids equally over the nucleoid, yet the underlying mechanism is not understood. Here we investigate a model where ParA-ATP can dynamically associate to the nucleoid and is hydrolyzed by plasmid-associated ParB, thereby creating nucleoid-bound, self-organizing ParA concentration gradients. We show mathematically that differences between competing ParA concentrations on either side of a plasmid can specify regular plasmid positioning. Such positioning can be achieved regardless of the exact mechanism of plasmid movement, including plasmid diffusion with ParA-mediated immobilization or directed plasmid motion induced by ParB/parC-stimulated ParA structure disassembly. However, we find experimentally that parABC from Escherichia coli plasmid pB171 increases plasmid mobility, inconsistent with diffusion/immobilization. Instead our observations favor directed plasmid motion. Our model predicts less oscillatory ParA dynamics than previously believed, a prediction we verify experimentally. We also show that ParA localization and plasmid positioning depend on the underlying nucleoid morphology, indicating that the chromosomal architecture constrains ParA structure formation. Our directed motion model unifies previously contradictory models for plasmid segregation and provides a robust mechanistic basis for self-organized plasmid spacing that may be widely applicable. PMID:25521716

Ietswaart, Robert; Szardenings, Florian; Gerdes, Kenn; Howard, Martin

2014-12-01

335

Spontaneous Emission Between - and Para-Levels of Water-Ion H_2O^+  

NASA Astrophysics Data System (ADS)

Nuclear spin conversion interaction of water ion, H_2O^+, has been studied to derive spontaneous emission lifetime between ortho- and para-levels. H_2O^+ is a radical ion with the ^2B_1 electronic ground state. Its off-diagonal electron spin-nuclear spin interaction term, Tab(S_a? I_b + S_b? I_a), connects para and ortho levels, because ? I = I_1 - I_2 has nonvanishing matrix elements between I = 0 and 1. The mixing by this term with Tab = 72 MHz predicted by ab initio theory in the MRD-CI/Bk level, is many orders of magnitude larger than for closed shell molecules because of the large magnetic interaction due to the un-paired electron. Using the molecular constants reported by Mürtz et al. by FIR-LMR, we searched for ortho and para coupling channels below 1000 cm-1 with accidental near degeneracy between para and ortho levels. For example, hyperfine components of the 42,2(ortho) and 33,0(para) levels mix by 1.2 × 10-3 due to their near degeneracy (? E = 0.417 cm-1), and give the ortho-para spontaneous emission lifetime of about 0.63 year. The most significant low lying 10,1(para) and 11,1(ortho) levels, on the contrary, mix only by 8.7 × 10-5 because of their large separation (? E = 16.267 cm-1) and give the spontaneous emission lifetime from 10,1(para) to 00,0(ortho) of about 100 year.These results qualitatively help to understand the observed high ortho- to para- H_2O^+ ratio of 4.8 ± 0.5 toward Sgr B2 but they are too slow to compete with the conversion by collision unless the number density of the region is very low (n ˜1 cm-3) or radiative temperature is very high (T_r > 100 K). M. Staikova, B. Engels, M. Peric, and S.D. Peyerimhoff, Mol. Phys. 80, 1485 (1993) P. Mürtz, L.R. Zink, K.M. Evenson, and J.M. Brown J. Chem. Phys. 109, 9744 (1998). LP. Schilke, et al., A&A 521, L11 (2010).

Tanaka, Keiichi; Harada, Kensuke; Nanbu, Shinkoh; Oka, Takeshi

2012-06-01

336

On the Ortho:Para Ratio of H+ 3 in Diffuse Molecular Clouds  

NASA Astrophysics Data System (ADS)

The excitation temperature T 01 derived from the relative intensities of the J = 0 (para) and J = 1 (ortho) rotational levels of H2 has been assumed to be an accurate measure of the kinetic temperature in interstellar environments. In diffuse molecular clouds, the average value of T 01 is ~70 K. However, the excitation temperature T(H+ 3) derived from the (J, K) = (1, 1) (para) and (1, 0) (ortho) rotational levels of H+ 3 has been observed to be ~30 K in the same types of environments. In this work, we present observations of H+ 3 in three additional diffuse cloud sight lines for which H2 measurements are available, showing that in four of five cases T 01 and T(H+ 3) are discrepant. We then examine the thermalization mechanisms for the ortho:para ratios of H+ 3 and H2, concluding that indeed T 01 is an accurate measure of the cloud kinetic temperature, while the ortho:para ratio of H+ 3 need not be thermal. By constructing a steady-state chemical model taking into account the nuclear spin dependence of reactions involving H+ 3, we show that the ortho:para ratio of H+ 3 in diffuse molecular clouds is likely governed by a competition between dissociative recombination with electrons and thermalization via reactive collisions with H2. Based in part on observations made with ESO Telescopes at the La Silla or Paranal Observatories under program ID 384.C-0618.

Crabtree, Kyle N.; Indriolo, Nick; Kreckel, Holger; Tom, Brian A.; McCall, Benjamin J.

2011-03-01

337

ParaPep: a web resource for experimentally validated antiparasitic peptide sequences and their structures  

PubMed Central

ParaPep is a repository of antiparasitic peptides, which provides comprehensive information related to experimentally validated antiparasitic peptide sequences and their structures. The data were collected and compiled from published research papers, patents and from various databases. The current release of ParaPep holds 863 entries among which 519 are unique peptides. In addition to peptides having natural amino acids, ParaPep also consists of peptides having d-amino acids and chemically modified residues. In ParaPep, most of the peptides have been evaluated for growth inhibition of various species of Plasmodium, Leishmania and Trypanosoma. We have provided comprehensive information about these peptides that include peptide sequence, chemical modifications, stereochemistry, antiparasitic activity, origin, nature of peptide, assay types, type of parasite, mode of action and hemolytic activity. Structures of peptides consisting of natural, as well as modified amino acids have been determined using state-of-the-art software, PEPstr. To facilitate users, various user-friendly web tools, for data fetching, analysis and browsing, have been integrated. We hope that ParaPep will be advantageous in designing therapeutic peptides against parasitic diseases. Database URL: http://crdd.osdd.net/raghava/parapep/ PMID:24923818

Mehta, Divya; Anand, Priya; Kumar, Vineet; Joshi, Anshika; Mathur, Deepika; Singh, Sandeep; Tuknait, Abhishek; Chaudhary, Kumardeep; Gautam, Shailendra K.; Gautam, Ankur; Varshney, Grish C.; Raghava, Gajendra P.S.

2014-01-01

338

The formaldehyde ortho/para ratio as a probe of dark cloud chemistry and evolution  

NASA Technical Reports Server (NTRS)

We present measurements of the H2CO ortho/para ratio toward four star-forming cores, L723, L1228, L1527, and L43, and one quiescent core, L1498. Combining these data with earlier results by Minh et al., three quiescent cores are found to have ortho/para ratios near 3, the ratio of statistical weights expected for gas-phase formation processes. In contrast, ortho/para ratios are 1.5-2.1 in five star-forming cores, suggesting thermalization at a kinetic temperature of 10 K. We attribute modification of the ortho/para ratio in the latter cores to formation and/or equilibration of H2CO on grains with sub-sequent release back into the gas phase due to the increased energy inputs from the forming star and outflow. We see accompanying enhancements in the H2CO abundance relative to H, to support this idea. The results suggest that the formaldehyde ortho/para ratio can differentiate between quiescent cores and those in which low-mass star formation has occurred.

Dickens, J. E.; Irvine, W. M.

1999-01-01

339

Davis o ambiente ideal para estudantes internacionais estudarem, desenvolverem-se como cidados mundiais e fazerem amigos para toda a vida. Davis tem uma populao  

E-print Network

a sociedade e o 10º lugar em termos de gastos com pesquisas. Todos os anos, mais de 30 000 alunos estudam informações Para baixar um folheto com informações sobre todos os nossos cursos, visite nosso website ou entre o ano todo, é um dos cursos de inglês intensivo mais antigos e respeitados dos EUA. Com uma carga

California at Davis, University of

340

Comparison of Divalent Transition Metal Ion ParaCEST MRI Contrast Agents  

PubMed Central

Transition metal ion-based paraCEST agents (TM-CEST) are a promising new class of compounds for MRI contrast. Members in this class of compounds include paramagnetic complexes of FeII, CoII and NiII. The development of the coordination chemistry for these paraCEST agents is presented with an emphasis on the choice of azamacrocycle backbone and pendent groups with the goals of controlling oxidation state, spin state and stability of the complexes. CEST spectra and images are compared for different macrocyclic complexes containing amide or heterocyclic pendent groups. The potential of paraCEST agents that function as pH and redox-activated MRI probes is discussed. PMID:24253281

Dorazio, Sarina J.; Olatunde, Abiola O.; Tsitovich, Pavel B.

2013-01-01

341

Irritant contact dermatitis from a black henna tattoo without sensitization to para-phenylendiamine.  

PubMed

Allergic contact dermatitis from nonpermanent black henna tattoos has been frequently reported, particularly in children. Contamination or adulteration of the dyes with para-phenylendiamine has been identified as major cause of active sensitization and elicitation of severe allergic contact dermatitis. Sequelae include permanent sensitization, hyper- or hypopigmentation, scarring, keloids, and hypertrichosis. We report a rare case of irritant dermatitis to an unknown ingredient in a black henna tattoo with consecutive hypopigmentation. Sensitization to para-phenylendiamine and other para-compounds was excluded by patch test evaluation. This is relevant for future exposure to consumer products such as hair dyes or in occupational settings. Generally, black henna tattoos, particularly if done with dyes of unknown composition, should be strongly discouraged. PMID:23690526

Kind, Fabiola; Hofmeier, Kathrin Scherer; Bircher, Andreas J

2013-06-01

342

Allergic contact dermatitis to para-phenylenediamine in a tattoo: a case report.  

PubMed

It is highly popular among children and young adults to have temporary henna tattoos on their bodies in different colors and figures. Henna is a greenish natural powder obtained from the flowers and dry leaves of Lawsonia alba plant and its allergenicity is very low. Henna is also used in combination with other coloring substances such as para-phenylenediamine in order to darken the color and create a permanent tattoo effect. Para-phenylenediamine is a substance with high allergenicity potential and may cause serious allergic reactions. Here, we aimed to draw attention to the potential harms of para-phenylenediamine containing temporary tattoos by presenting a child patient who developed allergic contact dermatitis after having a scorpion-shaped temporary tattoo on his forearm. PMID:22909181

Turan, Hakan; Okur, Mesut; Kaya, Ertugrul; Gun, Emrah; Aliagaoglu, Cihangir

2013-06-01

343

Animaciones en 3D en tiempo real para las clases de ciencias e ingeniería: Ejemplos desarrollados con el módulo de programación VPython  

Microsoft Academic Search

RESUMEN: Se describe el uso del módulo de programación VPython para desarrollar animaciones en 3D por computadora para ilustrar temas de interés para las clases. Mostramos la utilidad del uso de animaciones para reforzar las presentaciones de materias como física y matemática, entre otras. Con tales presentaciones se puede innovar en el desarrollo de las clases de ciencias e ingeniería

Eduardo E. Rodríguez

344

Quantum rotation of ortho and para-water encapsulated in a fullerene cage  

PubMed Central

Inelastic neutron scattering, far-infrared spectroscopy, and cryogenic nuclear magnetic resonance are used to investigate the quantized rotation and ortho–para conversion of single water molecules trapped inside closed fullerene cages. The existence of metastable ortho-water molecules is demonstrated, and the interconversion of ortho-and para-water spin isomers is tracked in real time. Our investigation reveals that the ground state of encapsulated ortho water has a lifted degeneracy, associated with symmetry-breaking of the water environment. PMID:22837402

Beduz, Carlo; Carravetta, Marina; Chen, Judy Y.-C.; Concistrè, Maria; Denning, Mark; Frunzi, Michael; Horsewill, Anthony J.; Johannessen, Ole G.; Lawler, Ronald; Lei, Xuegong; Levitt, Malcolm H.; Li, Yongjun; Mamone, Salvatore; Murata, Yasujiro; Nagel, Urmas; Nishida, Tomoko; Ollivier, Jacques; Rols, Stéphane; Rõõm, Toomas; Sarkar, Riddhiman; Turro, Nicholas J.; Yang, Yifeng

2012-01-01

345

Técnicas de Minería de Datos para la Detección de Lavado de Activos  

Microsoft Academic Search

Abstract—La tarea de detección de lavado,de activos no es un tema fácil de resolver, teniendo en cuenta las múltiples modalidades,y la evolución rápida que,este tema,ha,tenido. En la actualidad muchas entidades financieras a nivel mundial, utilizan técnicas de,minería de,datos,y modelos,estadísticos para reconocer,patrones,de comportamiento,de las transacciones fraudulentas,o de la utilización” normal”,de los clientes para detectar operaciones” sospechosas”’. Este documento,realiza una introducción,al tema

Wilfredy Santamaria Ruiz

346

Large scale visualization on the Cray XT3 using ParaView.  

SciTech Connect

Post-processing and visualization are key components to understanding any simulation. Porting ParaView, a scalable visualization tool, to the Cray XT3 allows our analysts to leverage the same supercomputer they use for simulation to perform post-processing. Visualization tools traditionally rely on a variety of rendering, scripting, and networking resources; the challenge of running ParaView on the Lightweight Kernel is to provide and use the visualization and post-processing features in the absence of many OS resources. We have successfully accomplished this at Sandia National Laboratories and the Pittsburgh Supercomputing Center.

Rogers, David; Geveci, Berk (Kitware, Inc.); Eschenbert, Kent (Pittsburgh Supercomputing Center); Neundorf, Alexander (Technical University of Kaiserslautern); Marion, Patrick (Kitware, Inc.); Moreland, Kenneth D.; Greenfield, John

2008-05-01

347

Natural bond orbital analysis of some para -substituted N -nitrosoacetanilide biological molecules  

Microsoft Academic Search

Theoretical study of several para-substituted N-nitrosoacetanilide biological molecules has been performed using density functional B3LYP method with 6-31G(d,p) basis set.\\u000a Geometries obtained from DFT calculation were used to perform natural bond orbital analysis. The p characters of two nitrogen\\u000a natural hybrid orbital (NHO) ?\\u000a N3–N2 bond orbitals increase with increasing ?\\u000a p values of the para substituent group on the

Xiao-Hong Li; Rui-Zhou Zhang; Xian-Zhou Zhang

2009-01-01

348

LIVROS DIDTICOS E SUAS FUNES PARA O PROFESSOR DE MATEMTICA NO BRASIL E NA FRANA.  

E-print Network

LIVROS DIDÁTICOS E SUAS FUN��ES PARA O PROFESSOR DE MATEMÁTICA NO BRASIL E NA FRAN�A. Clovis Gomes-Claude.Regnier@univ-lyon2.fr RESUMO Esse texto aborda as funções do livro didático de matemática em dois n que visa pôr em evidência o livro didático de matemática como «vetor de formação continuada» para os

Paris-Sud XI, Université de

349

REDES-Revista hispana para el anlisis de redes sociales Vol.17,#13, Diciembre 2009  

E-print Network

REDES- Revista hispana para el análisis de redes sociales Vol.17,#13, Diciembre 2009 http://revista-redes - Universidad de Sevilla Resumen Este artículo resume una parte de nuestro trabajo sobre las redes de apoyo clasificación de los tipos de redes de apoyo de los inmigrantes con menos de diez años de residencia en España

Boyer, Edmond

350

ABORDAGEM MULTIOBJETIVO PARA OTIMIZAO DE REDES DE FILAS F. R. B. Cruz  

E-print Network

1 ABORDAGEM MULTIOBJETIVO PARA OTIMIZAÇÃO DE REDES DE FILAS FINITAS F. R. B. Cruz Departamento de uma rede de filas finitas com serviço geral. Como tais objetivos são conflitantes, utiliza-se uma sistemas estocásticos. Palavras-Chaves: Redes de filas; algoritmos genéticos; otimização multiobjetivo

Cruz, Frederico

351

REDES-Revista hispana para el anlisis de redes sociales Vol.15, #4, Diciembre 2008  

E-print Network

REDES- Revista hispana para el análisis de redes sociales Vol.15, #4, Diciembre 2008 http://revista-redes.rediris.es Patrones de cambio de las redes personales de inmigrantes en Cataluña José Luis Molina1 (UAB), Jürgen Lerner2 (UK) y Sílvia Gómez Mestres3 (UAB) Resumen A través del análisis de las redes personales de

Brandes, Ulrik

352

Aplicao de Tcnicas de Redes Sociais para o Sucesso Alexandre Baro  

E-print Network

Aplicação de Técnicas de Redes Sociais para o Sucesso Educativo Alexandre Barão alexandrebarao combate ao insucesso escolar. A análise de redes sociais concentra-se nas relações existentes entre informação electrónicos, a aplicação da análise de redes sociais pode proporcionar um conjunto de inferências

da Silva, Alberto Rodrigues

353

REDES-Revista hispana para el anlisis de redes sociales Vol.6,#7, Junio 2009  

E-print Network

REDES- Revista hispana para el análisis de redes sociales Vol.6,#7, Junio 2009 http://revista-redes propone devolverle a la relación social su importancia como unidad básica de las redes sociales, y explorar lo que constituye su "sustancia" considerada aquí como el "motivo" de las relaciones. Las redes

Boyer, Edmond

354

REDES-Revista hispana para el anlisis de redes sociales Vol.19,#10, Diciembre 2010  

E-print Network

REDES- Revista hispana para el análisis de redes sociales Vol.19,#10, Diciembre 2010 http://revista-redes.rediris.es Redes de consejo en la industria biotecnológica en Francia1 Alvaro Piña-Stranger2 ­ IRISSO (CNRS artículo exploramos las redes de consejo inter-organizacionales, apoyándonos en la idea de que la

Boyer, Edmond

355

Um Framework para Proviso de QoS em Redes Mveis Sem Fio1  

E-print Network

Um Framework para Provisão de QoS em Redes Móveis Sem Fio1 Luciana dos Santos Lima, Antônio Tadeu A provisão de QoS em redes móveis sem fio integrando soluções isoladas encontradas na literatura. Esses descrita através de um cenário simulado em que serviços integrados são oferecidos sobre uma rede IP Móvel

Colcher, Sérgio

356

REDES-Revista hispana para el anlisis de redes sociales Vol.6,#7, Junio 2009  

E-print Network

REDES- Revista hispana para el análisis de redes sociales Vol.6,#7, Junio 2009 http://revista-redes.rediris.es En busca del contenido de las redes sociales: los "motivos" de las relaciones1 Claire Bidart2 , CNRS devolverle a la relación social su importancia como unidad básica de las redes sociales, y explorar lo que

Paris-Sud XI, Université de

357

REDES-Revista hispana para el anlisis de redes sociales Vol.9,#6, Diciembre 2005  

E-print Network

REDES- Revista hispana para el análisis de redes sociales Vol.9,#6, Diciembre 2005 http://revista-redes.rediris.es La explicación a través de la visualización de redes1 Ulrik Brandes, Universidad de Konstanz. Tercero, valoramos algunos ejemplos específicos de la visualización de redes basada en estos principios

Brandes, Ulrik

358

Submetido revista Pesquisa Naval Abordagem Multiobjetivo para Otimizao de Redes de Filas Finitas  

E-print Network

Submetido à revista Pesquisa Naval Abordagem Multiobjetivo para Otimização de Redes de Filas atendimento global de uma rede de filas finitas com serviço geral. Como tais objetivos são conflitantes of these important stochastic systems. Palavras-chave: Redes de filas. Algoritmos genéticos. Otimização multiobjetivo

Cruz, Frederico

359

DEPENDÊNCIA DE MICORRIZAS PARA A NODULAÇÃO DE LEGUMINOSAS ARBÓREAS TROPICAIS1  

Microsoft Academic Search

RESUMO - As espécies de leguminosas Piptadenia gonoacantha e Piptadenia paniculata apresentam dificuldade para nodular e crescer em substratos esterilizados, o que dificulta a seleção de estirpes de rizóbio eficientes dessas espécies. As plantas que apresentam nódulos no campo estão micorrizadas. Assim, a boa resposta das plantas no campo pode ser devida à presença de FMAs. O objetivo deste trabalho

Ederson da Conceição Jesus; Jolimar Antônio Schiavo; Sérgio Miana de Faria

360

Planejamento Hierrquico Para Enxames Robticos Baseado na Explorao do Espao de Configuraes  

E-print Network

independente do número de robôs. Experimentos foram realizados em simulação e ambientes reais e os resultados espaço de configurações individual, ou definir campos vetoriais globais para con- trolar o enxame como um

Chaimowicz, Luiz

361

Montagem e Resultados Preliminares de Aparato Experimental para Estudo Térmico de Materiais Ablativos  

Microsoft Academic Search

O estudo do fenômeno físico de ablação, que ocorre em determinados materiais usados em sistemas de proteção térmica de satélites, bem como a caracterização das propriedades térmicas dos mesmos são considerados de grande importância, por representar um ponto estratégico para a tecnologia espacial. No Brasil, os estudos de materiais ablativos têm sido realizados dentro da perspectiva do Programa Nacional de

Gabriel Antônio de Souza Júnior; Lucas Mello de Campos Arruda; Walber Ferreira Braga; Márcia Barbosa; Henriques Mantelli

362

Interrupting Commemoration: Thinking with Art, Thinking through the Strictures of Argentina's "Espacio para la memoria"  

ERIC Educational Resources Information Center

Recently, a few buildings within the "Espacio para la memoria" in Buenos Aires have been designated as a UNESCO Centre where, amongst other educational activities, evidentiary materials of the past repression are to be stored and displayed. Another building in the complex houses a Community Centre operated by the Mothers of the Plaza de Mayo,…

Paolantonio, Mario Di

2011-01-01

363

SELECCIN DE ACACIAS PARA LA CONSTRUCCIN DE NIDOS DE AVES: UN BENEFICIO INDIRECTO DEL MUTULISMO  

E-print Network

SELECCI�N DE ACACIAS PARA LA CONSTRUCCI�N DE NIDOS DE AVES: UN BENEFICIO INDIRECTO DEL MUTULISMO caducifolio centroamericano, y comúnmente construyen sus nidos en acacias, principalmente en Acacia collinsii alimenta de las secreciones de los nectarios y los cuerpos de Belt de la de la acacia. Por su parte, la

Cuervo, Andrés

364

Creación de guía ergonómica para el diseño de interfaz de supervisión  

Microsoft Academic Search

En tareas de supervisión humana de sala de control industrial se aplican de forma genérica disciplinas como la ingeniería del software y la ergonomía física para el diseño de la interfaz computerizada y el diseño de la sala de control. Desde el punto de vista de la interacción persona ordenador, a estas disciplinas hay que añadir la ingeniería de la

Pere Ponsa; Marta Díaz; Andreu Català

365

Significado de los cambios en el cuello uterino: Guía para la salud de la mujer  

Cancer.gov

Explica los pasos que deben seguirse después de un resultado anormal en una prueba de Pap o del VPH, así como las formas de diagnosticar y tratar las afecciones en el cuello uterino. También contiene información sobre las pautas para los exámenes de detección y las vacunas contra el VPH.

366

Estructuras de comunicación para la resolución de problemas de manera distribuida en la ingeniería concurrente  

Microsoft Academic Search

Se presenta el problema de la comunicación en la resolución de problemas distribuidos. Se analizan las siguientes tecnologías de la comunicación: actores, pizarrones, las comunicaciones homogéneas y heterogéneas en un ambiente de multiagentes. Se ilustra la discusión con ejemplos del ambiente para el Diseño de Objetos Estructurados (Design of Structured Objects - DESO). El prototipo actual integra algunos sistemas preexistentes

Leonid B. Sheremetov

367

INSTRUMENTACIÓN DE GRANDES CALDERAS DE POTENCIA PARA LA APLICACIÓN DE MODELOS AVANZADOS DE INGENIERÍA  

Microsoft Academic Search

RESUMEN La implementación de modelos de monitorización del funcionamiento de calderas de potencia requiere de gran cantidad de datos para su validación, que además deben cumplir unos mínimos requi- sitos de precisión y completitud. La importancia de estos modelos es cada día mayor, pues se aplican en el control de procesos complejos que suceden en este tipo de instalaciones. Frente

Luis Ignacio Díez; Cristóbal Cortés; Inmaculada Arauzo

368

1/5 CBEB 2008 NOVO MTODO PARA COMPRESSO DE SINAIS DE EMG USANDO  

E-print Network

1/5 CBEB 2008 NOVO MÉTODO PARA COMPRESSÃO DE SINAIS DE EMG USANDO JPEG2000 M. V. C. Costa*, P. A for two-dimensional compression of EMG signals, namely correlation sorting. We also present an algorithm for compression of electromyographic (EMG) signals based on the JPEG2000 coding system. Originally designed

Carvalho, João Luiz

369

Michael Faraday e o manuscrito Matter: uma solução metafísica para o problema da ação a distância  

Microsoft Academic Search

O texto aqui traduzido, intitulado simplesmente Matéria, revela um Faraday muito pouco conhecido. É notório que Michael Faraday (1791-1867) fez grandes contribuições para a ciência do eletromagnetismo; dentre elas, duas merecem destaque: a descoberta ex- perimental da indução eletromagnética e a elaboração teórica do conceito de linhas de força, alternativa à explicação (de perspectiva newtoniana) baseada na ação a distân-

Sonia Maria Dion

2006-01-01

370

Para presentar una queja en la Oficina de Equidad y Diversidad (OED), por favor incluya  

E-print Network

de Oportunidades de Empleo de los EE.UU. (U.S. Equal Employment Opportunity Commission) o del Estado para la Igualdad de Oportunidades en el Empleo de los Estados Unidos (U.S. Equal Employment Opportunity Commission) Reuss Federal Plaza 310 West Wisconsin Avenue, Suite 800 Milwaukee, WI 53203-2292 Teléfono: 414

Sheridan, Jennifer

371

NOTAS TAXONÓMICAS SOBRE EL GÉNERO VALERIANELLA MILL. (VALERIANACEAE) PARA LA FLORA IBÉRICA  

Microsoft Academic Search

RESUMEN. Notas taxonómicas sobre el género Valerianella Mill. (Valerianaceae) para la Flora Ibérica. Sobre la base de estudios experimentales que han puesto de manifiesto que Valerianella coronata y V. pumila no son sino dos morfotipos de una misma especie, que difieren fundamentalmente en caracteres carpológicos, se plantea la hipótesis de que igual sucede en el caso de V. locusta V.

Juan Antonio DEVESA; Josefa LÓPEZ; Raúl GONZALO

2005-01-01

372

Factor Structure of the "Escala de Autoeficacia para la Depresion en Adolescentes" (EADA)  

ERIC Educational Resources Information Center

The current concept and measures of self-efficacy for depression in adolescents do not consider developmental and cultural aspects essential to understand and assess this construct in Latino youth. We examined the factor structure of the "Escala de Autoeficacia para la Depresion en Adolescentes" (EADA), a Spanish instrument designed to assess this…

Diaz-Santos, Mirella; Cumba-Aviles, Eduardo; Bernal, Guillermo; Rivera-Medina, Carmen

2011-01-01

373

UN ENFOQUE CONSTRUCTIVISTA PARA USO DE MAPAS CONCEPTUALES EN EDUCACIÓN A DISTANCIA DE PROFESORES  

Microsoft Academic Search

Resumen. Este trabajo presenta una propuesta de utilización de los mapas conceptuales en la formación de profesores a distancia usando el software CmapTools del Institute for Human and Machine Cognition, dentro de un paradigma constructivista. Nuestra propuesta utiliza como base teórica la Epistemología Genética de Jean Piaget y, en especial, la teoría de las Implicaciones Significantes para la construcción de

Lea Fagundes; Alberto J. Cañas

374

BIBLIOTECA GRAPHICALSPRITEKERNEL (GSK): IMPLEMENTACIÓN DE UNA ARQUITECTURA DE TRES MODELOS PARA CREAR MULTIMEDIA EDUCATIVA  

Microsoft Academic Search

Resumen En este trabajo se presenta una arquitectura de tres modelos para desarrollar multimedia educativa, a través de una implementación particular de ésta, la biblioteca GraphicalSpriteKernel. Esta arquitectura está constituida por tres modelos diferentes, a emplear en tres fases fundamentales del desarrollo de una aplicación multimedia: diseño, implementación y prueba. Esta especialización permite que cada modelo incluya sólo la lógica

Vicente Arturo Romero Zaldivar

375

LA PREPARACIÓN DEL PROFESOR PARA EL DESARROLLO DE HABILIDADES BÁSICAS EN EDUCACIÓN LABORAL  

Microsoft Academic Search

El modelo educativo de Secundaria Básica exige de un profesional que por su nivel de preparación, sea capaz de garantizar la formación integral de las presentes y futuras generaciones. En tal sentido, la presente investigación incursiona en una de las problemáticas acuciantes de esta educación “la preparación de los profesores de Secundaria Básica, para favorecer el desarrollo de habilidades prácticas

Alfredo Puig Batista

2010-01-01

376

SIGACLE: SIMULADOR GRÁFICO ASISTIDO POR COMPUTADOR PARA LA ENSEÑANZA DE PROGRAMACIÓN DE LENGUAJES ESTRUCTURADOS  

Microsoft Academic Search

Se plantea la importancia que brinda el desarrollo de herramientas asistidas por computador como apoyo al proceso de enseñanza. SIGACLE (Simulador Gráfico Asistido por Computador Para la Enseñanza de Programación de Lenguajes Estructurados), tiene como principal objetivo el desarrollo de habilidades cognoscitivas en estudiantes de pregrado en las materias de programación de computadores. Este documento define específicamente los conceptos necesarios

George Franco Cendales; María Paula Díaz; Rafael J. Barros

377

The Combined Ortho / Para Hydrogen Assignments in H_2 Metal Chlorides  

NASA Astrophysics Data System (ADS)

The rotational spectra of H_2-AgCl and H_2-AuCl have been measured using a cavity FTMW spectrometer equipped with a laser ablation source. A combination of isotopic substitution, including HD and D_2 substitutions, and the spin-spin interaction of ortho hydrogen were used to determine the structures of these species. Trends in these structures and the strengths of the H_2 interaction will be discussed. Previous work with hydrogen containing complexes have shown that separate spectra are observed for the both the ortho and para hydrogen species. In this work, ortho and para hydrogen are assigned together. The a-axis in the present species is coincident with internal rotation axis of hydrogen. This symmetry, along with a covalent interaction of the H_2 with the metal chlorides, allows for a straightforward global assignment of the ortho and para species. The differences in the present study from the previous works will be discussed, as well as the assignment of the combined ortho and para fits. Y. Zhenhong, K. J. Higgins, W. Klemperer, M. C. McCarthy and P. Thaddeus, J. Chem. Phys., 123(2005) 221106. J. M. Michaug, W. C. Topic, W. Jäger, J. Phys. Chem. A., 115(2011) 9456 M. Ishiguro, K Harada, K. Tanaka, Y. Sumiyoshi, Y. Endo, Chem. Phys. Lett., 554(2012) 33.

Obenchain, Daniel A.; Grubbs, G. S., II; Frank, Derek S.; Pickett, Herbert M.; Novick, Stewart E.

2014-06-01

378

Notas de Aula: Fisica para Biologia: PRELIMINAR Nestor Caticha e Osame Kinouchi  

E-print Network

Notas de Aula: F´isica para Biologia: PRELIMINAR Nestor Caticha e Osame Kinouchi 17 de abril de´oxima d´ecada. H´a vezes em que a escolha de carreira dos estudantes de biologia ´e descrita usando exemplos de simbiose entre biologia e f´isica que demostram alguns dos pontos altos da

Caticha, Nestor

379

Algoritmos Basados en Nubes de Particulas y Evolucion Diferencial para el Problema de  

E-print Network

Algoritmos Basados en Nubes de Part´iculas y Evoluci´on Diferencial para el Problema de Optimizaci con variables reales pode- mos destacar a los algoritmos basados en nubes de part´iculas y evoluci propuestas en la literatura. Este estu- dio permite analizar las distintas t´ecnicas en funci´on de sus

Granada, Universidad de

380

Problemática de Seguridad para el Comercio Electrónico en el Sector Turístico  

Microsoft Academic Search

Resumen: Uno d e los s ervicios que c ada día cobra más importancia y que promete un cambio radical para las empresas es el comercio electrónico en Internet, pero tradicionalmente las empresas r elacionadas con el t urismo sólo han empleado la red pa ra darse a conocer y ofertar s us productos. La razón esencial es la d

Javier López; Javier Areitio; Felipe Roselló

381

EL COMERCIO ELECTRÓNICO EN PAÍSES EN DESARROLLO: LA PLANEACIÓN PARA EL ÉXITO DEL NEGOCIO  

Microsoft Academic Search

Desde un enfoque que identifica al conocimiento como una fuente de capacidad de competencia en el contexto social, organizacional e individual se explica al Comercio electrónico como un proceso estratégico de las organizaciones de negocio, en el ámbito económico actual. En particular se enfatiza la trascendencia del proceso específico de planeación para el éxito del negocio a través de la

L. P. Carrillo

2010-01-01

382

The nongenotoxic carcinogens naphthalene and para-dichlorobenzene suppress apoptosis in Caenorhabditis elegans  

Microsoft Academic Search

Naphthalene (1) and para-dichlorobenzene (PDCB, 2), which are widely used as moth repellents and air fresheners, cause cancer in rodents and are potential human carcinogens. However, their mechanisms of action remain unclear. Here we describe a novel method for delivering and screening hydrophobic chemicals in C. elegans and apply this technique to investigate the ways in which naphthalene and PDCB

David Kokel; Yehua Li; Jun Qin; Ding Xue

2006-01-01

383

Arquitectura del Sistema de Gestin del ancho de Banda y Proteccin (SGBP) para entornos de redes  

E-print Network

Arquitectura del Sistema de Gestión del ancho de Banda y Protección (SGBP) para entornos de redes}@eia.udg.es Resumen. En el presente artículo se describe la arquitectura de un sistema inte- gral de gestión del ancho 4 detalla la arquitectura propuesta del sistema. Por último, se presentan las conclusiones y futuros

Ortega, Eusebi Calle

384

El proyecto InterAct: Una arquitectura de pizarra para la implementacin de Entornos Activos*  

E-print Network

El proyecto InterAct: Una arquitectura de pizarra para la implementación de Entornos Activos en una arquitectura en la que se distinguen tres capas: la capa de contexto, la capa de interacción columna vertebral de la arquitectura de InterAct. Se ha optado por una arquitectura basada en una

Autonoma de Madrid, Universidad

385

SÍNTESE DE POLIÉSTER PARA APLICAÇÃO EM CÉLULAS A COMBUSTÍVEL DO TIPO PEM  

Microsoft Academic Search

RESUMO Dos diversos tipos de celulas a combustíveis (CaC), a PEMFC (Proton Exchange Membrane Fuel Cell) se destaca pela versatilidade de aplicações, tanto para uso estacionário como móvel. Entretanto a PEMFC apresenta alto custo de fabricação, com reflexos diretos no custo da energia produzida. Este trabalho propõem a sulfonação do ácido ftalico e polimerização deste com o glicerol, usando como

R. P. Fiuza; D. R. de Souza; R. A. Fiuza; N. M. José; J. S. Boaventura

386

Anniversary VetTech Training Hawai`i's First Para-Professionals  

E-print Network

facilities, and private veterinary practice (there are over 80 veterinary clinics in Hawai`i). The new a tremendous success, placing more than 70 percent of graduates in the veterinary industry. Building40th Anniversary VetTech Training Hawai`i's First Para-Professionals Veterinary Technology is among

Olsen, Stephen L.

387

SISTEMA REMOTO DE ADQUISICIÓN PARA EL CONTROL DEL RUIDO AMBIENTAL CON FPGA Y FPAA  

Microsoft Academic Search

RESUMEN Este artículo propone el diseño de un sistema de adquisición de datos con componentes digitales y analógicos microelectrónicos reconfigurables, como son el FPGA (Field Programmable Gate Array) y el FPAA (Field Programmable Analog Array), para monitorear y analizar la contaminación por ruido ambiental. Este prototipo obtiene los datos del ruido de una zona vial (zona centro de una ciudad)

A. Castillo Atoche; J. Vázquez Castillo; V. Sanchez Huerta; P. Del Río Dawn

388

UNA EXPERIENCIA DE TRABAJO PARA EL DESARROLLO LOCAL EN UNA COMUNIDAD URBANA DE CUBA  

Microsoft Academic Search

La presente monografía titulada: Una experiencia de trabajo para el desarrollo local en una comunidad urbana de Cuba es fruto de una investigación realizada hace algún tiempo ya, en el cual se ha contado con el apoyo del CITMA por ser el órgano rector en cuestión del medio ambiente en Cuba, específicamente en este caso se obtuvo la ayuda de

Milena Gómez Navarro

2008-01-01

389

Estudio para la Detección de Plomo en Alimentos de Origen Vegetal por Análisis Infrarrojo  

Microsoft Academic Search

Resumen— El objetivo del estudio es determinar un método no invasivo, basado en espectroscopia infrarroja, que sirva como herramienta para la detección de plomo en alimentos de origen vegetal. Teniendo presente que los vegetales son una parte importante de nuestra dieta, resulta necesario realizar investigaciones referentes a la presencia de metales pesados en los vegetales, en este caso plomo. El

Daniel Octavio García Romero; Leopoldo Félix; Yabar Escribanel

390

Taller: Enfoque Multisectorial para la Seguridad Alimentaria y Nutricin 7-8 Marzo 2013  

E-print Network

desarrollo del sector agrícola más sostenible ambientalmente? ¿Cuál es el rol de los gobiernos y demás Multilaterales de la Agencia Colombiana de Cooperación Internacional para el Desarrollo. Colombia. Con recursos. Coordinador de la Alianza Panamericana de Nutrición y Desarrollo. Moderador: Pablo Mandeville. Coordinador

Liu, X. Shirley

391

Indicadores de gestión urbana. Los observatorios urbano-territoriales para el desarrollo sostenible. Manizales, Colombia  

Microsoft Academic Search

Los Observatorios para el Desarrollo Sostenible del Municipio de Manizales en Colombia, hacen parte del Sistema de Monitoreo diseñado por el Municipio como apoyo a la gestión urbana local. A partir de los resultados de indicadores económicos, sociales y ambientales, los ciudadanos podrán evaluar de forma permanente el desempeño de programas y proyectos del Plan de Desarrollo Municipal y participar

Luz Stella Velásquez

2001-01-01

392

O e-learning como etapa da universidade para o virtual  

Microsoft Academic Search

Resumo. A adopção de práticas de ensino a distância ou presencial de suporte electrónico, normalmente designadas por e-learning, tem sido vistas como a direcção a seguir para um ensino superior, moderno e adequado à realidade da Sociedade da Informação. Tendo em linha de conta a realidade específica da Universidade Fernando Pessoa, é traçado pelos autores uma reflexão que sustenta que

393

EL “WIKI” COMO RECURSO PARA DESARROLLAR COMPETENCIAS EN EL PROCESO DE ENSEÑANZA-APRENDIZAJE  

Microsoft Academic Search

En el presente trabajo se analiza la utilidad de las tecnologías de la información y la comunicación (TIC), y específicamente del “Wiki”, como herramienta para el modelo de enseñanza-aprendizaje derivado del Espacio Europeo de Educación Superior (EEES). Se realiza una aproximación al significado del EEES y al modelo de enseñanza que propone, en el que lo relevante no es tanto

Mabel López García; José María Souvirón Morenilla

2010-01-01

394

On the Ortho:Para Ratio of H3+ in Diffuse Molecular Clouds  

E-print Network

The excitation temperature T_01 derived from the relative intensities of the J = 0 (para) and J = 1 (ortho) rotational levels of H2 has been assumed to be an accurate measure of the kinetic temperature in interstellar environments. In diffuse molecular clouds, the average value of T_01 is ~70 K. However, the excitation temperature T(H3+) derived from the (J,K) = (1,1) (para) and (1,0) (ortho) rotational levels of H3+ has been observed to be ~30 K in the same types of environments. In this work, we present observations of H3+ in three additional diffuse cloud sight lines for which H2 measurements are available, showing that in 4 of 5 cases T_01 and T(H3+) are discrepant. We then examine the thermalization mechanisms for the ortho:para ratios of H3+ and H2, concluding that indeed T_01 is an accurate measure of the cloud kinetic temperature, while the ortho:para ratio of H3+ need not be thermal. By constructing a steady-state chemical model taking into account the nuclear-spindependence of reactions involving H3...

Crabtree, Kyle N; Kreckel, Holger; Tom, Brian A; McCall, Benjamin J

2011-01-01

395

ConPor: um modelo de gerao conceitual para o Lucia Specia, Lucia Helena Machado Rino  

E-print Network

ConPor: um modelo de geração conceitual para o português Lucia Specia, Lucia Helena Machado Rino ­ 13565-905 ­ São Carlos ­ SP ­ Brasil {lspecia,lucia}@dc.ufscar.br Abstract. This paper describes Con

Specia, Lucia

396

REVISION DE MARCOS TEORICOS EDUCATIVOS PARA EL DISEÑO Y USO DE PROGRAMAS DIDÁCTICOS  

Microsoft Academic Search

RESUMEN Se desea presentar la aparición del software educativo y su evolución a la luz de algunas de las teorías educati- vas más representativas. En este paralelismo, sólo se mencionan aquellas teorías y\\/o autores que darán los marcos con- ceptuales para los desarrollos de los programas didácticos en función de las aplicaciones deseadas. Partiendo del con- ductismo skinneriano1, se pasa

Z. Cataldi; F. Lage; R. Pessacq; García Martínez

397

EMPLEO DE FRACCIONES CELULARES DE LA LEVADURA Saccharomyces cerevisiae COMO ADITIVO ALIMENTARIO PARA Artemia franciscana  

Microsoft Academic Search

RESUMEN En el presente estudio se evalúa la levadura Saccharomyces cerevisiae de forma desintegrada (LD) y tres fracciones celulares obtenidas de ella: complejo pared-membrana (FP), núcleo-proteínas (FN) y citoplasma (FC) como aditivo alimentario utilizando al crustáceo Artemia franciscana como modelo de experimentación. Se realizaron dos bioensayos para determinar el efecto que ejercían dichos aditivos en el crecimiento, biomasa seca, supervivencia

Yamilé Comabella; Tsai García-Galano; Olimpia Carrillo; Yadir Mauri

398

ELEMENTOS DE CONTEXTO DE LA POLÍTICA MIGRATORIA PARA TRABAJADORES EXTRANJEROS NO COMUNITARIOS EN ESPAÑA  

Microsoft Academic Search

La política migratoria es considerada un objetivo primordial en España, por eso el análisis las directrices en trabajadores extranjeros no comunitarios es el tema de este artículo. Objetivo: identificar los elementos de contexto de la política migratoria. Metodología: Se trata de la revisión analítica de las políticas y sistematización de la literatura sobre el tema de la política migratoria para

ROCÍO BEDOYA

2010-01-01

399

Se necesitan 50 000 fumadores y exfumadores para el Estudio Nacional de Exámenes de Pulmón (NLST)  

Cancer.gov

El Instituto Nacional del Cáncer (NCI) lanzó hoy un nuevo estudio para determinar si el examinar a las personas ya sea con una tomografía computarizada espiral o con una radiografía de pecho antes de que tengan síntomas puede reducir las muertes por cáncer de pulmón.

400

ACADEMIA DE POLCIA CIVIL CONCURSO PBLICO PARA PROVIMENTO DE VAGAS E FORMAO DE CADASTRO DE RESERVA  

E-print Network

ACADEMIA DE POLÍCIA CIVIL CONCURSO P�BLICO PARA PROVIMENTO DE VAGAS E FORMA��O DE CADASTRO DE ACADEMIA DE POLÍCIA CIVIL DO DISTRITO FEDERAL (APCDF), no uso de suas atribuições legais, torna pública Diretor da Academia de Polícia Civil do Distrito Federal #12;

Maier, Rudolf Richard

401

Long-range excitons in conjugated polymers with ring torsions: poly(para-phenylene) and polyaniline  

E-print Network

Long-range excitons in conjugated polymers with ring torsions: poly(para-phenylene) and polyaniline (Running head: Long-range excitons in conjugated polymers) Kikuo Harigaya Physical Science Division formalism. Long-range excitons are charac- terized, and the long-range component of the oscillator strengths

Harigaya, Kikuo

402

Antimicrobial effect of para-alkoxyphenylcarbamic acid esters containing substituted N-phenylpiperazine moiety  

PubMed Central

In current research, nine basic esters of para-alkoxyphenylcarbamic acid with incorporated 4-(4-fluoro-/3-trifluoromethylphenyl)piperazin-1-yl fragment, 6i–6m and 8f–8i, were screened for their in vitro antimicrobial activity against Candida albicans, Staphylococcus aureus and Escherichia coli, respectively. Taking into account the minimum inhibitory concentration assay (MIC), as the most active against given yeast was evaluated 8i (MIC = 0.20 mg/mL), the most lipophilic structure containing para-butoxy and trifluoromethyl substituents. Investigating the efficiency of the compounds bearing only a single atom of fluorine and appropriate para-alkoxy side chain against Candida albicans, the cut-off effect was observed. From evaluated homological series, the maximum of the effectiveness was noticed for the stucture 6 k (MIC = 0.39 mg/mL), containing para-propoxy group attached to phenylcarbamoyloxy fragment, beyond which the compounds ceased to be active. On the contrary, all the tested molecules were against Staphylococcus aureus and Escherichia coli (MICs > 1.00 mg/mL) practically inactive. PMID:24294237

Malík, Ivan; Bukovský, Marián; Andriamainty, Fils; Gališinová, Jana

2013-01-01

403

Estados Unidos y cuatro países de América Latina se unen para combatir el cáncer  

Cancer.gov

El Instituto Nacional del Cáncer (NCI) de Estados Unidos formalizó esta semana alianzas bilaterales con los gobiernos de Argentina, Brasil, México y Uruguay, para acelerar el avance contra el cáncer en la población hispana de Estados Unidos y de América Latina y mejorar la investigación del cáncer.

404

Métodos de depuración HW-SW para sistemas on chip reconfigurables  

Microsoft Academic Search

El dinamismo de las aplicaciones en sistemas on chip reconfigurables re- quiere un eficiente uso de los recursos disponibles. Para permitir la asignación en tiempo real de los recursos, el sistema operativo y la plataforma SoC reconfigurable han de estar diseñadas en paralelo. En este contexto, el desarrollo del hardware y software encastado presenta los inconvenientes individuales de cada uno,

Guillermo Talavera; Vincent Nollet; Jean-Yves Mignolet; Diederick Verkest; Rudy Lauwereins; Jordi Carrabina

405

Sensores CMOS para robotica e industria: Sensor ret nico espacio variante y vision activa  

E-print Network

Sensores CMOS para robotica e industria: Sensor ret nico espacio variante y vision activa Fernando Pardo, Francisco Vegara, Jose A. Boluda, Santiago Felici Instituto de Robotica Universidad de Valencia C venido estudiando especialmente en el terreno de aplicaciones en robotica 2]. Sin em- bargo, en el

Valencia, Universidad de

406

AstroFácil: Sistema Computacional Embarcado para Automatização de Telescópios de Pequeno Porte  

Microsoft Academic Search

O uso de telescópios de pequeno porte na observação astronômica amadora é muitas vezes restringido pela dificuldade que astrônomos amadores enfrentam para localizar um astro desejado e acompanhá-lo no céu. Este artigo apresenta o desenvolvimento de um sistema embarcado a ser utilizado na automação de telescópios de pequeno porte visando facilitar a operação desses equipamentos por amadores. O sistema é

Marcos Roberto Silva; Maicon Carlos Pereira; Caroline Farias Salvador; Rafael Luiz Cancian; Roberto Miguel Torres; Cesar Albenes Zeferino

2006-01-01

407

Mdulo II.-Amenazas para la biodiversidad l La sexta gran extincin  

E-print Network

Módulo II.- Amenazas para la biodiversidad l La sexta gran extinción l Cambio global l Causas y ejemplos de extinción y amenaza Fecha actualización: 14-11-13 #12;n La diversidad de especies en la Tierra riesgo de extinción global desde 1980 #12;Geografía de las amenazas a la seguridad del agua y la

Rey Benayas, José María

408

Tutorial sobre o uso de Geotecnologias no estudo de Bacias Hidrogrficas para professores da Educao Bsica  

E-print Network

Tutorial sobre o uso de Geotecnologias no estudo de Bacias Hidrográficas para professores da of hydrographic basing degradation, a tutorial was developed for secondary school teachers to use in environmental education and other environmentally-based subjects. This tutorial gives them the possibility of performing

409

Regulamenta os procedimentos para a alocao de vagas docentes de Magistrio Superior da  

E-print Network

Universidade Federal do Rio de Janeiro. O Conselho de Ensino de Graduação (CEG) e o Conselho de Ensino para 2006; Considerando: a. que a admissão de professores na Universidade Federal do Rio de Janeiro é um Universidade Federal do Rio de Janeiro; d. que o banco de professores-equivalente corresponderá à soma dos

Liu, I-Shih

410

Para-Professionals in Further Education: Changing Roles in Vocational Delivery  

ERIC Educational Resources Information Center

Roles and structures within further education colleges seem to be in constant change and development; roles are becoming blurred, and lecturers are taking on more management tasks. Alongside this has been the development of para-professional roles, using non-lecturers to undertake teaching tasks. This can allow for the greater involvement of…

Scott, Gill

2005-01-01

411

Involvement of mitochondrial ferredoxin and para-aminobenzoic acid in yeast coenzyme Q biosynthesis  

E-print Network

1 Involvement of mitochondrial ferredoxin and para-aminobenzoic acid in yeast coenzyme QABA is a precursor of yeast coenzyme Q *Manuscript Click here to view linked References #12;2 Summary Yeast ubiquinone or coenzyme Q6 (Q6) is a redox active lipid with a crucial role in the mitochondrial electron

Boyer, Edmond

412

Computer-controlled radiation therapy machine for pelvic and para-aortic nodal areas  

Microsoft Academic Search

A computer-controlled radiation therapy technique has been developed to treat cancer of the uterine cervix that has extended to the pelvic and para-aortic lymph nodes. During five longitudinal scans with a 4 cm wide 8 MV X ray beam, conformation of the high dose region to the target volume was achieved primarily by varying the other field dimensions. Treatment planning

Lee M. Chin; Peter K. Kijewski; Göran K. Svensson; John T. Chaffey; Martin B. Levene; B. E. Bjaerngard

1981-01-01

413

Hacia un framework Orientado a Objetos para Bills of Materials Complejos  

Microsoft Academic Search

Las empresas de producción industrial se enfrentan por un lado, a los cambios constantes de las condiciones del mercado, como po r ejemplo, los patrones de demanda, ciclo de vida de los productos mucho más cortos, etc. Por otro, a un mercado global, que requiere que la cadena de suministros, alcance muy altos niveles de eficiencia. Para mantener la competitividad

Marcela Vegetti; Gabriela Henning; Horacio Leone

414

Um Instrumento para a Avaliação de Estressores Psicossociais no Contexto de Emprego  

Microsoft Academic Search

Resumo Os contextos onde se desenvolvem as atividades humanas apresentam características diferentes que têm importantes implicações no momento da elaboração e aplicação de procedimentos de avaliação. O contexto de emprego é muito importante para importantes setores de nossa população. Moos desenvolveu um marco conceitual sócio-ecológico no qual a relação, entre os acontecimentos vitais estressantes e as condutas adaptativas, encontra-se influenciada

Nora Leibovich de Figueroa; Marta Schufer; Roberto Muiños; Claudia Marro; Elizabeth Aranda Coria

2001-01-01

415

Metaheurística algoritmo genético para solução de problemas de planejamento florestal com restrições de integridade  

Microsoft Academic Search

2 RESUMO - Os objetivos deste trabalho foram desenvolver e testar um algoritmo genético (AG) para a solução de problemas de gerenciamento florestal com restrições de integridade. O AG foi testado em quatro problemas, contendo entre 93 e 423 variáveis de decisão, sujeitos às restrições de singularidade, produção mínima e produção máxima, periodicamente. Todos os problemas tiveram como objetivo a

Flávio Lopes Rodrigues; Helio Garcia Leite; Heleno do Nascimentos Santos; Agostinho Lopes de Souza; Gilson Fernandes da Silva

2004-01-01

416

Diseño y evaluación de una interfaz móvil para lectura de medidores de energía  

Microsoft Academic Search

El Instituto de Investigaciones Eléctricas (IIE) havenido trabajando durante varios años en el área deAMR (Lectura Automática de Medidores, por sus siglas eninglés) así como en la deteccón del robo deenergía eléctrica como líneasestratégicas para el desarrollo de infraestructura interna ytambién como respuesta a las demandas deautomatización de la Comisión Federal de Electricidad(CFE) y de la Compañía de Luz y

Víctor Álvarez-Cortés; Benjamín Zayas-Pérez

2005-01-01

417

Desarrollo de un servidor HTTP para dispositivos moviles en J2ME  

Microsoft Academic Search

El protocolo HTTP viene siendo ampliamente utilizado desde el nacimiento de la web, en donde es indispensable para la creacion de aplicaciones que hacen uso deesta. Con la llegada de las tecnolog´ias moviles pueden darse diversas situaciones en las que la creacion de un servidor HTTP en dispositivos limitados pueda resultar de gran utilidad. Un ejemplo, es la comparticion de

Guillermo Diez-Andino Sancho; Rosa Ma Garc; Celeste Campo

418

Reconocimiento de Palabras Aisladas Utilizando LPC Y DTW, para control de navegación de un  

Microsoft Academic Search

Resumen—La utilización de herramientas computacionales, hardware y software con capacidades de desarrollo en torno al manejo de modelos bioinspirados generó la construcción de un minirobot móvil aplicando la caracterización de comandos de voz y el aprovechamiento de las capacidades de procesamiento paralelo ofrecidas por el gene digital para gobernar la correspondiente navegación. A nivel general en la etapa de software

Y. Baquero; Z. Alezones

419

Esquema Adaptativo de Reserva para el Control de Admisión Jerárquico en Redes Móviles Celulares  

Microsoft Academic Search

Se propone un esquema adaptativo de reserva diseñado para trabajar en cooperación con la política de con- trol de admisión Multiple Guard Channel (MGC). El esquema ajusta los parámetros de configuración de MGC mediante un seguimiento continuo de la calidad de servicio (QoS) percibida por el usuario y permite adaptar la política a cualquier combi- nación de tráfico entrante, permitiendo

David García Roger; Jorge Martínez

420

Irradiation of para-aortic lymph node metastases from carcinoma of the cervix or endometrium  

SciTech Connect

Twenty-two patients with biopsy-proved para-aortic lymph node metastases from carcinoma of the cervix (15 patients) or endometrium (7 patients) received a median dose of 5,000 rad/25 fractions. Para-aortic nodal metastases were controlled in 77% of cases. Control was significantly lower following radical retroperitoneal lymph node dissection than less extensive sampling procedures. Obstruction of the small bowel developed in 3 patients with tumor recurrence in the para-aortic region. Eight of the 10 patients who were disease-free at 2 years received >5,000 rad. Three patients were still alive without disease at 129, 63, and 60 months, respectively. The 5-year disease-free survival rate was 40% for cervical cancer and 60% for endometrial cancer: in the former group, it was significantly different depending on whether the para-aortic nodes were irradiated (40%) or not (0%). The authors suggest that 5,000-5,500 rad in 5-5.5 weeks is well tolerated and can control aortic nodal metastases in cervical and possibly endometrial cancer.

Komaki, R.; Mattingly, R.F.; Hoffman, R.G.; Barber, S.W.; Satre, R.; Greenberg, M.

1983-04-01

421

Control mioeléctrico para movimientos en 2D de un manipulador robótico industrial  

Microsoft Academic Search

Resumen —En este trabajo se describe un sistema de control mioeléctrico de un manipulador robótico para la ejecución de tareas sobre el plano x-y. Las señales mioeléctricas provinieron de voluntarios sanos y especialmente de amputados de miembro superior conectadas mediante placas de acondicionamiento de señal y adquisición digital al entorno MATLAB ®. Se comparó el desempeño de parámetros descriptivos de

Natalia López; Carlos Soria; Eugenio Orosco; Fernando di Sciascio; Máximo Valentinuzzi

422

Effect of the site of infusion of para-aminohippuric acid (PAH) on portal blood flow  

E-print Network

Effect of the site of infusion of para-aminohippuric acid (PAH) on portal blood flow LM Zeoula C requirements of animals. In this context, the determination of portal blood flow is critical. When dilution techniques are used for such measurements, eg using PAH, a homogeneous mixing of the marker in the blood

Paris-Sud XI, Université de

423

ADS -Accelerator Driven System -Uma tecnologia do futuro para a produo de energia nuclear  

E-print Network

ADS - Accelerator Driven System - Uma tecnologia do futuro para a produção de energia nuclear 1980, quando as restrições ligadas principalmente a possíveis catástrofes relacionadas à tecnologia nessa tecnologia, que poderá ser de grande importância num futuro não muito distante. 2 #12;

Ribas, Roberto Vicençotto

424

MINISTRIO DA CINCIA, TECNOLOGIA E INOVAO (MCTI) CONCURSO PBLICO PARA PROVIMENTO DE VAGAS EM CARGOS  

E-print Network

1 MINISTÉRIO DA CIÊNCIA, TECNOLOGIA E INOVAÇÃO (MCTI) CONCURSO PÚBLICO PARA PROVIMENTO DE VAGAS EM DA CIÊNCIA, TECNOLOGIA E INOVAÇÃO, tendo em vista o disposto na Portaria nº 553, de 8 de dezembro de, Planejamento e Infraestrutura em Ciência e Tecnologia e da Carreira de Desenvolvimento Tecnológico de que trata

425

LA ENERGÍA EN LA FORMACIÓN DE LOS SUELOS: ASPECTOS TEÓRICOS Y METODOLÓGICOS PARA SU EVALUACIÓN  

Microsoft Academic Search

RESUMEN El suelo es un sistema abierto que tiende hacia un equilibrio dinámico acumulando y reciclando materia y energía a través del tiempo. Mediante un balance energético es posible evaluar la energía acumulada o la que circula a través de su masa. Esta miscelánea tiene por objetivo presentar aspectos teóricos y metodológicos para cuantificar la energía dinamizada durante la formación

AMÉRICO DEGIOANNI; ESTELA BRICCHI; EUGENIO HAMPP

2008-01-01

426

SISTEMA PARA GESTIONAR LA ACTIVIDAD CIENTÍFICA DEL DEPARTAMENTO DE INFORMÁTICA DE LA UNIVERSIDAD DE GUANTÁNAMO  

Microsoft Academic Search

El sistema para gestionar la actividad científica del Departamento de Informática de la Universidad de Guantánamo surge debido a la necesidad de gestionar de manera más rápida, segura y eficaz los procesos que se desarrollan actualmente en dicho centro. Fue desarrollado utilizando los lenguajes PHP del lado del servidor con CodeIgniter como framework y JavaScript del lado del cliente. Se

Denis Boizan Romero

2012-01-01

427

BIOCOMBUSTÍVEIS E COMÉRCIO INTERNACIONAL: OPORTUNIDADES E DESAFIOS PARA AMÉRICA LATINA E CARIBE  

Microsoft Academic Search

O grande desafio do mundo nos próximos anos será convergir desenvolvimento econômico com sustentabilidade. Nesse sentido a busca para ampliar a participação de energias sustentáveis nas matrizes energéticas tanto países de desenvolvidos como de países em desenvolvimento deverá cada vez sofrer mais pressão da comunidade internacional. Nesse ambiente alguns países da America Latina e Caribe podem beneficiar-se, já que possuem

André Luiz Marques Kós; Mario Miguel Amin Garcia Herreros; Heriberto Wagner Amanajás Pena

2011-01-01

428

ALTERNATIVAS PARA A GERAÇÃO DE ENERGIA RENOVÁVEL NO BRASIL: A OPÇÃO PELA BIOMASSA  

Microsoft Academic Search

Durante muito tempo, os recursos fósseis e hídricos foram os grandes propulsores da civilização e da economia. O Brasil também se apoiou nessas fontes energéticas para o desenvolvimento de atividades industriais, agrícolas, de serviços e da própria sociedade. Entretanto, vive-se hoje uma crise no abastecimento energético, em função da problemática geopolítica, econômica e ambiental em torno da extração e comercialização

Mariane Silva Marconato; Giuliana Aparecida Santini

2008-01-01

429

Modelo para la reduccin del ciclo de desarrollo de software basado en CMM. Francisco J. ALVAREZ.  

E-print Network

alto costo de implementación de modelos y la disminución de productividad en el período de aprendizaje: Calidad de Software, Procesos de desarrollo, CMM (Capability Maturity Model), KPA's (Key Process Areas desarrollo lograrían el estandarizar procesos e incrementar la calidad de los productos. Para adoptar el CMM

Weitzenfeld, Alfredo

430

PROCEDIMIENTO PARA EL DIAGNÓSTICO DE LA LOGÍSTICA INTERNA APLICADO EN UNA EMPRESA DE SERVICIOS EXTRAHOTELEROS  

Microsoft Academic Search

En este trabajo se presenta un procedimiento para realizar el diagnóstico de la logística interna, el cual fue aplicado en una empresa de servicios extrahoteleros. A partir de su aplicación se determinó un banco de problemas teniendo en cuenta las principales dificultades encontradas, así como un conjunto de acciones que le permitieron a la entidad mejorar los niveles de eficiencia

Damaris Valdés Ferrer

2012-01-01

431

PROCEDIMIENTO PARA LA PLANEACIÓN INTEGRAL DEL CAPITAL HUMANO EN ENTIDADES LOGÍSTICAS  

Microsoft Academic Search

Este trabajo tiene como objetivo proponer un procedimiento para la planeación integral del capital humano aplicado a Empresas Logísticas, en el mismo se tienen en cuenta los principales enfoques modernos sobre el tema, integra las actividades relacionadas con el capital humano, aborda la perspectiva cuantitativa y cualitativa, los diferentes plazos de tiempo: corto, mediano y largo, con un enfoque estratégico;

Daniel Machado Labrada; Margarita de Miguel Guzmán; Clara Marrero Fornaris

2011-01-01

432

Sistema informtico para gestionar la Garanta de Calidad de centros y titulaciones  

E-print Network

componentes de software libre Francisco Grimaldo, Jesús Santiago Aupi, Ricardo Ferrís, Vicente Cerverón desarrollo de un Sistema de Garantia Interna de Calidad (SGIC) para los centros y las titulaciones de laSQL. · Arquitectura web: J2EE, Spring, Hibernate, JavaMail... Figura 2. Proceso de orientación al estudiante en XPDL

Grimaldo, Francisco

433

AOWE : una Metodolog¶‡a Orientada a Aspectos para Desarrollo de Aplicaciones Web  

Microsoft Academic Search

Un enfoque para la separacion de intereses que ha cobrado cada vez mas importancia en la ¶ ultima decada es la orientacion a aspec- tos, debido a que permite evitar que un mismo interes este re?ejado en el dise~no en varios modulos o clases y que un mismo modulo o clase con- temple distintos intereses. Existe una carencia de metodos

Hernan Casalanguida; Juan Eduardo Duran

434

Desarrollo de Técnicas Ultrasónicas para Seguimiento y Interacción de la Marcha  

Microsoft Academic Search

En este trabajo se expone un sistema ultrasónico en desarrollo de captación y seguimiento de la marcha que es empleado como entrada a un sistema de control en el que eventualmente los patrones de movimientos y posiciones constituyen realmente un medio de comunicación ya sea de tipo general o bien para control natural de dispositivos de ayuda a la movilidad.

Anselmo Frizera; Rafael Raya; Juan C. Moreno; Ramón Ceres; Leopoldo Calderón

435

Limnological variables and macrophyte infestation in Tucuruı´ reservoir - Para´ - Brazil  

Microsoft Academic Search

This paper identified the relationship between aquatic macrophyte infestation and some limnological variables in Tucuruı´ reservoir, a hydroelectric power facility in Para´ State, northern Brazil. The spread of macrophyte stands jeopardizes environmental quality in many aspects since it is a natural habitat for the malaria vector; it is also an area of increased methane emission. On top of that, macrophyte

PEREIRA FILHO; E. M. Lde. M. Novo

2002-01-01

436

International Collaboration and Capacity Building at the Federal University of Para, Brazil: the Geoscience Cyberinfrastructure Journey  

Microsoft Academic Search

For over three decades, the Federal University of Para (UFPA) has been committed to building faculty and student capacity through national and international collaboration. Since the early 1980s, the Meteorology Department has actively participated in a large number of international scientific experiments in the Amazon region. One difficulty in the continuation of research after the field phase was data sharing

E. M. Cutrim; T. C. Yoksas; D. Nechet; J. Cohen

2006-01-01

437

Intact cluster and chordate-like expression of ParaHox genes in a sea star  

PubMed Central

Background The ParaHox genes are thought to be major players in patterning the gut of several bilaterian taxa. Though this is a fundamental role that these transcription factors play, their activities are not limited to the endoderm and extend to both ectodermal and mesodermal tissues. Three genes compose the ParaHox group: Gsx, Xlox and Cdx. In some taxa (mostly chordates but to some degree also in protostomes) the three genes are arranged into a genomic cluster, in a similar fashion to what has been shown for the better-known Hox genes. Sea urchins possess the full complement of ParaHox genes but they are all dispersed throughout the genome, an arrangement that, perhaps, represented the primitive condition for all echinoderms. In order to understand the evolutionary history of this group of genes we cloned and characterized all ParaHox genes, studied their expression patterns and identified their genomic loci in a member of an earlier branching group of echinoderms, the asteroid Patiria miniata. Results We identified the three ParaHox orthologs in the genome of P. miniata. While one of them, PmGsx is provided as maternal message, with no zygotic activation afterwards, the other two, PmLox and PmCdx are expressed during embryogenesis, within restricted domains of both endoderm and ectoderm. Screening of a Patiria bacterial artificial chromosome (BAC) library led to the identification of a clone containing the three genes. The transcriptional directions of PmGsx and PmLox are opposed to that of the PmCdx gene within the cluster. Conclusions The identification of P. miniata ParaHox genes has revealed the fact that these genes are clustered in the genome, in contrast to what has been reported for echinoids. Since the presence of an intact cluster, or at least a partial cluster, has been reported in chordates and polychaetes respectively, it becomes clear that within echinoderms, sea urchins have modified the original bilaterian arrangement. Moreover, the sea star ParaHox domains of expression show chordate-like features not found in the sea urchin, confirming that the dynamics of gene expression for the respective genes and their putative regulatory interactions have clearly changed over evolutionary time within the echinoid lineage. PMID:23803323

2013-01-01

438

La Importancia De Las Ayudas Informáticas Para Los Análisis Ergonómicos En El Diseño Industrial. Caso: la implementación de la silla sit-stand para las cajeras de supermercado en el estado de Quebec - Canadá  

Microsoft Academic Search

El diseño industrial está estrechamente relacionado con las necesidades de los diferentes utilizadores (clientes) y con el desarrollo de nuevos productos; en este proceso para llegar a los resultados esperados, el diseñador debe establecer las soluciones que deben satisfacer las necesidades encontradas. Para llegar a los objetivos, el producto debe ser pasado por diversas validaciones y verificaciones. Los análisis ergonómicos

Alvaro Enrique Diaz

439

MECANISMOS PARA LA CREACIÓN DE HÉROES Y ANTI HÉROES PARA LA OPINIÓN PÚBLICA INTERNACIONAL EN PERIODOS DE GUERRA HOW MEDIA CREATES HEROS AND ANTIHEROS FOR THE INTERNATIONAL PUBLIC OPINION IN WAR PERIODS  

Microsoft Academic Search

La intención principal de esta investigación es encontrar las claves que se utilizan a diario en los medios de comunicación para crear, de cara a la opinión pública, héroes y anti -héroes en periodos de crisis internacional como los que se vienen viendo desde el pasado 11 de septiembre. Para plantear esta investigación partimos de dos ideas. La primera de

García Gordillo

440

Ancient origins of axial patterning genes: Hox genes and ParaHox genes in the Cnidaria.  

PubMed

Among the bilaterally symmetrical, triploblastic animals (the Bilateria), a conserved set of developmental regulatory genes are known to function in patterning the anterior-posterior (AP) axis. This set includes the well-studied Hox cluster genes, and the recently described genes of the ParaHox cluster, which is believed to be the evolutionary sister of the Hox cluster (Brooke et al. 1998). The conserved role of these axial patterning genes in animals as diverse as frogs and flies is believed to reflect an underlying homology (i.e., all bilaterians derive from a common ancestor which possessed an AP axis and the developmental mechanisms responsible for patterning the axis). However, the origin and early evolution of Hox genes and ParaHox genes remain obscure. Repeated attempts have been made to reconstruct the early evolution of Hox genes by analyzing data from the triphoblastic animals, the Bilateria (Schubert et al. 1993; Zhang and Nei 1996). A more precise dating of Hox origins has been elusive due to a lack of sufficient information from outgroup taxa such as the phylum Cnidaria (corals, hydras, jellyfishes, and sea anemones). In combination with outgroup taxa, another potential source of information about Hox origins is outgroup genes (e.g., the genes of the ParaHox cluster). In this article, we present cDNA sequences of two Hox-like genes (anthox2 and anthox6) from the sea anemone, Nematostella vectensis. Phylogenetic analysis indicates that anthox2 (= Cnox2) is homologous to the GSX class of ParaHox genes, and anthox6 is homologous to the anterior class of Hox genes. Therefore, the origin of Hox genes and ParaHox genes occurred prior to the evolutionary split between the Cnidaria and the Bilateria and predated the evolution of the anterior-posterior axis of bilaterian animals. Our analysis also suggests that the central Hox class was invented in the bilaterian lineage, subsequent to their split from the Cnidaria. PMID:11324016

Finnerty, J R; Martindale, M Q

1999-01-01

441

LA TERAPIA FACILITADA POR ANIMALES DE COMPAÑÍA COMO PROGRAMA DE REHABILITACIÓN ADJUNTO PARA PERSONAS CON DIAGNÓSTICO DE ESQUIZOFRENIA CRÓNICA  

Microsoft Academic Search

Coincidiendo con el surgimiento de la psiquiatría comunitaria, ha habido un progresivo proceso de desinstitucionalización de los pacientes psiquiátricos; seleccionando a los menos discapacitados para los recursos comunitarios y dejando los pacientes con más discapacidad al cuidado de las instituciones. La rehabilitación pretende afrontar la discapacidad para realizar actividades, con la finalidad de mejorar la desventaja social consecuencia del deterioro

Victoria Villalta Gil; Susana Ochoa Güerre

2007-01-01

442

BUSCA LOCAL PARA POS-PROCESSAMENTO EM RESULTADOS DE OTIMIZAC~AO MULTI-OBJETIVO EM REDES DE FILAS  

E-print Network

BUSCA LOCAL PARA P´OS-PROCESSAMENTO EM RESULTADOS DE OTIMIZA¸C~AO MULTI-OBJETIVO EM REDES DE FILAS otimiza¸c~ao de redes de filas finitas, a capacidade total do sistema em ´areas de espera deve ser a menor algoritmo simulated annealing foi desenvolvido, especialmente para redes de filas finitas, produzindo solu

Cruz, Frederico

443

Bacillus subtilis Soj (ParA): The involvement of DNA binding and dynamic localization in plasmid partitioning  

E-print Network

The ParA family of ATPases encompasses proteins with a wide variety of functions. The prototype of this family is the ParA ATPase from the P1 prophage plasmid, which, along with ParB and the parS binding site, is required for the faithful...

Hester, Christina Marie

2008-05-08

444

La UA dirige un programa para prevenir conductas adictivas en los ms jvenes a travs del deporte  

E-print Network

La UA dirige un programa para prevenir conductas adictivas en los más jóvenes a través del deporte la Diputación de Alicante, han puesto en marcha un programa para prevenir conductas adictivas y impacto y cambios de conducta en los jóvenes", explica Carreres. Juan M. Cortell, vicedecano de Ciencias

Escolano, Francisco

445

Thouless theorem for one and two degrees of freedom (Teorema de Thouless para um e dois graus de liberdade)  

Microsoft Academic Search

Realizamos uma demonstracao acess´ ivel do teorema de Thouless para um ou dois graus de liberdade, usando somente mecanica quantica elementar. Este teoremae especialmenteutil para encontrar o vacuo relativo au m conjunto de operadores bosonicos transformados. Outra motivacaoe a existencia de experimentos envolvendo ´ ions capturados ou campos em eletrodinamica quantica de cavidades, usualmente modelados por osciladores harmonicos interagindo linearmente.

A. R. Bosco de Magalhaes; Avila Fonseca; M. C. Nemes

446

TRIBUNAL REGIONAL FEDERAL DA 1 REGIO Edital de divulgao de Sesso Pblica para julgamento dos recursos interpostos da 1  

E-print Network

TRIBUNAL REGIONAL FEDERAL DA 1ª REGIÃO Edital de divulgação de Sessão Pública para julgamento dos de Juiz Federal Substituto da 1ª Região O Presidente da Comissão do XIV Concurso Público para Provimento de Cargo de Juiz Federal Substituto da 1ª Região, no uso de suas atribuições, comunica que

Maier, Rudolf Richard

447

Characterization of the axon initial segment (AIS) of motor neurons and identification of a para-AIS  

E-print Network

Characterization of the axon initial segment (AIS) of motor neurons and identification of a para-AIS and a juxtapara-AIS, organized by protein 4.1B Duflocq et al. Duflocq et al. BMC Biology 2011, 9:66 http initial segment (AIS) of motor neurons and identification of a para-AIS and a juxtapara-AIS, organized

Paris-Sud XI, Université de

448

EVALUATION OF PARA-DICHLOROBENZENE EMISSIONS FROM SOLID MOTH REPELLANT AS A SOURCE OF INDOOR AIR POLLUTION  

EPA Science Inventory

Mothcakes made of para-dichlorobenzene have been widely available for the general population to be used as a moth repellant to protect garments from insect damage. Usually, a mothcake is expected to last for weeks or even months during which the para-dichlorobenzene emits slowly ...

449

Diseño y desarrollo del subsistema de detección y reacción de una plataforma para la prevención de ataques coordinados  

Microsoft Academic Search

Resumen. Uno de los requisitos imprescindibles para el éxito en el comercio electrónico es el de proporcionar confianza y seguridad. A pesar del gran avance en este ámbito, tales como sistemas cortafuegos, mecanismos de autenticación y sistemas para la detección de intrusos, la mayoría de las infraestructuras que respaldan el comercio electrónico son actualmente vulnerables a sufrir un gran número

Sergio Castillo; Joaquín García; Joan Borrell

450

Entornos Operativos para la Gestin de Recursos...Dept. d'Arquitectura de Computadors Execution Environments for  

E-print Network

Entornos Operativos para la Gestión de Recursos...Dept. d'Arquitectura de Computadors UPC Execution Environments for Parallel Applications Master CANS 2007/2008 Departament d'Arquitectura de Computadors Universitat Politècnica de Catalunya #12;Dept. d'Arquitectura de Computadors Entornos Operativos para la

Corbalan, Julita

451

Lmite de prazas para o curso 2014-2015 Consello de Goberno da UDC 27 de marzo de 2014  

E-print Network

Dirección de Empresas 180 180 Grao en Arquitectura 200 200 Grao en Arquitectura Técnica 190 160(1) Grao en Arquitectura Técnica 301 Simultaneidade de estudos dos Graos en CC. Empresariais e Turismo 30 30 DILIXENCIA e Arquitectura Técnica. Ofértanse 30 prazas para a simultaneidade e mantéñense 90 prazas para o grao

Fraguela, Basilio B.

452

Directrices de consenso en el campo de las microfinanzas: Definición de términos, coeficientes y ajustes financieros para las microfinanzas  

Microsoft Academic Search

El propósito de este documento es proponer una definición estándar para cada uno de los términos financieros seleccionados y plantear un método común de cálculo para determinados coeficientes financieros. Fue producido en colaboración entre el Banco Interamericano de Desarrollo (BID) y el Grupo Consultivo de Ayuda a la Población más Pobre (CGAP) del Banco Mundial, con los aportes de varias

Damian von Stauffenberg; Frank Abate; Tillman Bruett; Isabelle Barres; Robert Peck Christen; Richard Rosenberg; Dana de Kanter; Tor Jansson; Barry Lennon; Alice Negre; Sanjay Singha

2003-01-01

453

Método de Prueba GAED: Tiempo Óptimo para el Reemplazo de CAG en Plantas de Tratamiento de Agua Potable  

Microsoft Academic Search

l carbón activado granular (CAG) no dura para siempre en una planta de tratamiento de agua (PTA), su rendimiento no necesita ser monitoreado periódicamente, y deberá ser reemplazado con CAG fresco, no usado o reactivado. El CAG usado, que se remueve, puede ser reactivado en plantas dedicadas a carbones de agua potable para ser retornado a la planta. Los reactivadores

Por Henry Nowicki; H. George Nowicki; Wayne Schuliger; Barbara Sherman

454

COMPARACIÓN DE VARIOS MÉTODOS PARA LA REPRESENTACIÓN CARTOGRÁFICA DE INFORMACIÓN CLIMÁTICA EN ZONAS ALTAS DEL ESTADO LARA  

Microsoft Academic Search

Se compararon tres métodos cartográficos diferentes para la representación de aspectos climáticos (temperatura y precipitación) en zonas altas del estado Lara. Se usó conjuntamente A) Representación analógica (en papel), B) Mapas digitalizados de coberturas mediante el software para Sistema de Información Geográfica (SIG) ArcInfo y C) Modelos numéricos interpolados mediante software de aplicación geoestadística (SURFER), empleando el modelo de interpolación

Jorge López Márquez; Rigoberto Andressen

2001-01-01

455

STRATIFIED\\/PCA: UN MÉTODO DE PROCESAMIENTO DE DATOS Y VARIABLES PARA LA CONSTRUCCIÓN DE MODELOS DE REDES NEURONALES  

Microsoft Academic Search

Resumen. Este artículo describe un método para reducir observaciones y variables contenidas en grandes archivos de datos a nuevos conjuntos de datos cuyo tamaño es mucho más reducido. Estos nuevos conjuntos son confiables para mejorar tanto en calidad como en tiempo, la construcción de los modelos de redes neuronales. El método, Stratified\\/PCA utiliza la técnica de muestreo estratificado y análisis

456

O recurso a veculos areos tripulados remotamente para realizar vrias tarefas, da investigao cientfica ao controlo de fronteiras,  

E-print Network

TECNOLOGIA DRONES PARA TODO O SERVI�O O recurso a veículos aéreos tripulados remotamente para privacidade aumentam TEXTOS DE ALEXANDRA SIM�ES DE ABREU FOTOGRAFIAS DE NUNO BOTELHO UAV, VANT, RPA, drones falar mais dos drones (zangões em portu- guês), nomeadamente com fins mi- litares -- podem realizar

Instituto de Sistemas e Robotica

457

Comienza la construcción de instalación patrocinada por el NCI en Puerto Rico para realizar estudios clínicos sobre el cáncer  

Cancer.gov

El gobierno de Puerto Rico ha destinado $196 millones de dólares para construir un hospital oncológico de 287 000 pies cuadrados en San Juan, que contará con 96 camas. El nuevo hospital es el primero en su clase en la región caribeña y en él se llevarán a cabo tratamientos para el cáncer y estudios clínicos.

458

Instrumentos para la conservacin de la Diversidad Biolgica y los HbitatsDiversidad Biolgica y los Hbitats  

E-print Network

Instrumentos para la conservación de la Diversidad Biológica y los HábitatsDiversidad Biológica y. 5 de Biología. 2011-12 Jesús Ángel Cuevas MorenoJesús Ángel Cuevas Moreno #12;Instrumentos para la. Principales impulsores de la pérdida de Diversidad Biológica y los hábitats Instrumentos de conservación

Rodríguez, Miguel Ángel

459

Zoneamento agrícola e época de semeadura para trigo no Brasil Agricultural zoning and sowing dates for wheat in Brazil  

Microsoft Academic Search

Resumo - Um Programa de Zoneamento Agrícola para o Brasil, subsidiando a política de crédito e securidade rural, começou a ser posto em prática pelo Ministério da Agricultura, Pecuária e Abastecimento (MAPA) a partir da safra de inverno de 1996, com a cultura de trigo no sul do Brasil. Este artigo apresenta uma síntese dos trabalhos sobre zoneamento agrícola para

Gilberto Rocca da Cunha; João Carlos Haas; Jaime Ricardo; Tavares Maluf; Paulo Henrique Caramori; Eduardo Delgado Assad; Hugo José Braga; Jurandir Zullo Jr; Cláudio Lazzarotto; Sérgio Gonçalves; Marcos Wrege; Dionísio Brunetta; Sérgio Roberto Dotto; Hilton Silveira Pinto; Orivaldo Brunini; Vera Magali; Radtke Thomé; Sérgio Luiz Zampieri; Aldemir Pasinato; Márcia Barrocas Moreira Pimentel; Cristina Pandolfo

2001-01-01

460

Ambulacrarian prototypical Hox and ParaHox gene complements of the indirect-developing hemichordate Balanoglossus simodensis.  

PubMed

The Hox genes and its evolutionary sister, the ParaHox genes, are widely distributed among animals. Although it has been expected that hemichordates and echinoderms have a single set of Hox genes and most likely a single set of ParaHox genes, it is not known whether the ortholog of Hox8 is absent in hemichordates, and in turn, consensus view about Hox/ParaHox gene complements in hemichordates has not been established. In this study, we isolated either complete or nearly complete coding sequences of 12 Hox genes, including the ortholog of the Hox8 that has not been reported in the previous studies, and three ParaHox genes from the recently discovered indirect-developing acorn worm, Balanoglossus simodensis. Our data suggest that the ancestral hemichordate had intact complements of ambulacrarian prototypical Hox and ParaHox genes, consisting of 12 and three members, respectively. PMID:19669790

Ikuta, Tetsuro; Miyamoto, Norio; Saito, Yasunori; Wada, Hiroshi; Satoh, Nori; Saiga, Hidetoshi

2009-07-01

461

Saturn’s Tropospheric Temperatures and Para-Hydrogen Distribution from Ten Years of Cassini Observations  

NASA Astrophysics Data System (ADS)

Cassini/CIRS observations of Saturn’s 10-1400 cm-1 spectrum have been inverted to construct a global record of tropospheric temperature and para-hydrogen variability over the ten-year span of the Cassini mission. The data record the slow reversal of seasonal asymmetries in tropospheric conditions from northern winter (2004, Ls=293), through northern spring equinox (2009, Ls=0) to the present day (2014, Ls=60). Mid-latitude tropospheric temperatures have cooled by approximately 4-6 K in the south and warmed by 2-4 K in the north, with the seasonal contrast decreasing with depth. CIRS detected the north polar minimum 100-mbar temperatures 6-8 years after winter solstice, whereas the south polar maximum occurred 1-2 years after summer solstice, consistent with the lag times predicted by radiative equilibrium models. Warm polar cyclones and the northern hexagon persist throughout the mission, suggesting that they are permanent features of Saturn’s tropospheric circulation. The 200-mbar thermal enhancement (“knee”) that was strongest in the summer but weak or absent in winter in 2004-2006 (Fletcher et al., 2007, Icarus 189, p.457-478) has now shifted northward and is present globally in 2014, suggestive of radiative heating in Saturn’s tropospheric haze layer. Saturn’s para-H2 fraction, which serves as a tracer of both tropospheric mixing and the efficiency of re-equilibration between the ortho- and para-hydrogen states, is slowly altering: super-equilibrium conditions (para-H2 fraction exceeding equilibrium expectations and suggestive of subsiding airmasses) that dominated the southern summer hemisphere are now weakening, whereas the sub-equilibrium conditions (suggestive of uplift) of the northern winter are being replaced by equilibrium or super-equilibrium conditions in spring. The thermal ‘knee’ and the para-H2 distribution are tracking both the increased spring illumination and the increasing tropospheric haze opacity of the springtime hemisphere observed via colour changes in visible light, suggesting a close connection between the tropospheric temperatures, para-H2 and haze characteristics.

Fletcher, Leigh N.; Irwin, Patrick G.; Sinclair, James; Giles, Rohini; Barstow, Joanna; Achterberg, Richard K.; Orton, Glenn S.

2014-11-01

462

A nanoparticle catalyst for heterogeneous phase para-hydrogen-induced polarization in water.  

PubMed

Para-hydrogen-induced polarization (PHIP) is a technique capable of producing spin polarization at a magnitude far greater than state-of-the-art magnets. A significant application of PHIP is to generate contrast agents for biomedical imaging. Clinically viable and effective contrast agents not only require high levels of polarization but heterogeneous catalysts that can be used in water to eliminate the toxicity impact. Herein, we demonstrate the use of Pt?nanoparticles capped with glutathione to induce heterogeneous PHIP in water. The ligand-inhibited surface diffusion on the nanoparticles resulted in a (1) H?polarization of P=0.25?% for hydroxyethyl propionate, a known contrast agent for magnetic resonance angiography. Transferring the (1) H?polarization to a (13) C?nucleus using a para-hydrogen polarizer yielded a polarization of 0.013?%. The nuclear-spin polarizations achieved in these experiments are the first reported to date involving heterogeneous reactions in water. PMID:25565403

Glöggler, Stefan; Grunfeld, Alexander M; Ertas, Yavuz N; McCormick, Jeffrey; Wagner, Shawn; Schleker, P Philipp M; Bouchard, Louis-S

2015-02-16

463

Renormalization-group approach for para-hydrogen adsorbed on exfoliated graphite  

NASA Astrophysics Data System (ADS)

Heat-capacity measurements of para-hydrogen adsorbed on graphite were performed recently and revealed an interesting phase diagram similar to 4He. We report a renormalization-group study based on a three-state Potts model with vacancies which approximates the experimental situation. The resulting global phase diagram is in a three parameter space of pair-interaction constants and chemical potential as studied by Berker, Ostlund and Putnam. The Lennard-Jones or other effective potential between the para-H 2 adsorbed molecules determines the subspace relevant to this adsorbate. A method to calculate thermodynamic densities is discussed and the resulting temperature versus density diagram agrees well with the experiment.

Mello, E. V. L.; Carneiro, G. M.

1986-04-01

464

High dose para-aortic lymph node irradiation for gynecologic cancer: technique, toxicity, and results  

SciTech Connect

A technique for high dose (5600-6100 cGy) extended field irradiation to the para-aortic lymph nodes is described. Fourteen patients have been treated with this technique, of whom 10 have had histologic confirmation of para-aortic node metastases. With follow-up ranging from 11 to 78 months, 7 of 14 patients are alive and clinically cancer-free. Acute effects of extended field treatment on patient weight and circulating blood counts are analyzed, and late treatment morbidity assessed. The findings suggest that such treatment, executed with modern equipment and appropriate technique, is not significantly more hazardous than pelvic irradiation, and can result in a substantial probability of disease-free survival.

Russell, A.H.; Jones, D.C.; Russell, K.J.; Gerdes, A.J.; Figge, D.C.; Greer, B.E.; Tamimi, H.K.; Cain, J.M.

1987-02-01

465

Incentivos para atraer y retener personal de salud de zonas rurales del Perú: un estudio cualitativo  

PubMed Central

El objetivo fue identificar incentivos de atracción y retención en zonas rurales y distantes de Ayacucho, Perú. Fueron realizadas entrevistas en profundidad con 80 médicos, enfermeras, obstetras y técnicos (20 por grupo) de las zonas más pobres y con 11 funcionarios. No existen políticas sistemáticas de atracción y retención de personal de salud en Ayacucho. Los principales incentivos, en orden de importancia, fueron mejoras salariales, oportunidades de formación y capacitación, estabilidad laboral y nombramiento, mejoras en infraestructura y equipos, e incremento del personal. Se mencionaron también mejoras en la vivienda y alimentación, mayor cercanía con la familia y reconocimiento por el sistema de salud. Existen coincidencias y singularidades entre los distintos grupos sobre los incentivos clave para estimular el trabajo rural, que deben considerarse al diseñar políticas públicas. Las iniciativas del Estado deben comprender procesos rigurosos de monitoreo y evaluación, para asegurar que las mismas tengan el impacto deseado. PMID:22488318

Huicho, Luis; Canseco, Francisco Díez; Lema, Claudia; Miranda, J. Jaime; Lescano, Andrés G.

2014-01-01

466

H2CS abundances and ortho-to-para ratios in interstellar clouds  

NASA Technical Reports Server (NTRS)

Several H2CS ortho and para transitions have been observed toward interstellar molecular clouds, including cold, dark clouds and star-forming regions. H2CS fractional abundances f(H2CS) about 1-2 10 to the -9th relative to molecular hydrogen toward TMC-1, Orion A, and NGC 7538, and about 5 10 to the -10th for L134N are derived. The H2CS ortho-to-para ratios in TMC-1 are about 1.8 toward the cyanopolyyne peak and the ammonia peak, which may indicate the thermalization of H2CS on 10 K grains. A ratio of about 3, the statistical value, for Orion (3N, 1E) and NGC 7538 is derived, while a value of about 2 for Orion (KL) is found.

Minh, Y. C.; Irvine, W. M.; Brewer, M. K.

1991-01-01

467

Molecular Characterization of Neurally Expressing Genes in the Para Sodium Channel Gene Cluster of Drosophila  

PubMed Central

To elucidate the mechanisms regulating expression of para, which encodes the major class of sodium channels in the Drosophila nervous system, we have tried to locate upstream cis-acting regulatory elements by mapping the transcriptional start site and analyzing the region immediately upstream of para in region 14D of the polytene chromosomes. From these studies, we have discovered that the region contains a cluster of neurally expressing genes. Here we report the molecular characterization of the genomic organization of the 14D region and the genes within this region, which are: calnexin (Cnx), actin related protein 14D (Arp14D), calcineurin A 14D (CnnA14D), and chromosome associated protein (Cap). The tight clustering of these genes, their neuronal expression patterns, and their potential functions related to expression, modulation, or regulation of sodium channels raise the possibility that these genes represent a functionally related group sharing some coordinate regulatory mechanism. PMID:8849894

Hong, C. S.; Ganetzky, B.

1996-01-01

468

Development of an integrated remote monitoring technique and its application to para-stressing bridge system  

NASA Astrophysics Data System (ADS)

Bridge monitoring system via information technology is capable of providing more accurate knowledge of bridge performance characteristics than traditional strategies. This paper describes not only an integrated Internet monitoring system that consists of a stand-alone monitoring system (SMS) and a Web-based Internet monitoring system (IMS) for bridge maintenance but also its application to para-stressing bridge system as an intelligent structure. IMS, as a Web-based system, is capable of addressing the remote monitoring by introducing measuring information derived from SMS into the system through Internet or intranet connected by either PHS or LAN. Moreover, the key functions of IMS such as data management system, condition assessment, and decision making with the proposed system are also introduced in this paper. Another goal of this study is to establish the framework of a para-stressing bridge system which is an intelligent bridge by integrating the bridge monitoring information into the system to control the bridge performance automatically.

Miyamoto, Ayaho; Motoshita, Minoru; Casas, Joan R.

2013-12-01

469

EL PROGRAMA CITI: UNA ALTERNATIVA PARA LA CAPACITACIÓN EN ÉTICA DE LA INVESTIGACIÓN EN AMÉRICA LATINA  

PubMed Central

El Programa CITI (Collaborative Institutional Training Initiative) es un curso basado en Internet y desarrollado por voluntarios, que brinda material educacional sobre protección de sujetos humanos en investigaciones biomédicas y de conducta, buenas prácticas clínicas, conducta responsable de la investigación y trato humanitario a animales de laboratorio. Es un esfuerzo conjunto del Fred Hutchinson Cancer Research Center y la Universidad de Miami. Con la colaboración de expertos locales, gran parte del contenido se ha adaptado para América Latina, se ha traducido al español y portugués y se han establecido acuerdos de colaboración con instituciones especializadas en bioética en Chile, Brasil, Costa Rica y Perú. Los autores presentan una metodología accesible para la capacitación en ética de la investigación y una justificación de su uso y difusión en América Latina PMID:21687817

Litewka, Sergio; Goodman, Kenneth; Braunschweiger, y Paul

2011-01-01

470

Desarrollo de un receptor polarimétrico en banda S para aplicación en estudios radioastronómicos  

NASA Astrophysics Data System (ADS)

Desde el punto de vista tecnológico, el objetivo principal de este proyecto es desarrollar un cabezal de receptor en la frecuencia de 3.3 GHz, con una temperatura del sistema de 60 K y un ancho de banda de 140 MHz. El mismo será instalado en el foco primario de un reflector parabólico de 30 metros de diámetro que funcionará como radiómetro en el IAR. El receptor es del tipo polarimétrico, con lo cual permite la posibilidad de obtener las componentes de polarización lineal y circular. Para tal fin el cabezal constará de dos ramas receptoras que amplificarán la señal y la trasladarán a una frecuencia menor, (frecuencia intermedia), permitiendo de esa forma un mejor transporte de la señal a la sala de control para su posterior procesamiento. El receptor, además de tener características polarimétricas, podrá ser usado en el contínuo y en la línea, utilizando las ventajas observacionales y de procesamiento de señal que actualmente posee el IAR.

Barberis, C. M.; Bava, J. A.; Sanz, A. J.

471

Modelizacion, control e implementacion de un procesador energetico paralelo para aplicacion en sistemas multisalida  

NASA Astrophysics Data System (ADS)

Cualquier sistema electronico que incluya un procesado o tratamiento de la senal, y ademas, algun tipo de actuador mecanico generalmente necesita, como minimo, dos tensiones diferentes de alimentacion. Excluyendo los sistemas de alimentacion distribuida, la solucion tecnica mas utilizada para proporcionar dos o mas tensiones consiste en las fuentes de alimentacion multisalida. En una fuente de alimentacion multisalida los diferentes circuitos que conforman cada salida comparten un mismo transformador de potencia optimizando coste, masa, y volumen. Las ventajas obtenidas con este procedimiento tienen en su contra el efecto que sobre cada salida individual provocan las demas en su conjunto debido, principalmente, a los efectos de los elementos parasitos de los componentes. Un cambio de carga en una de las salidas produce un transitorio que es visto por todas las demas como un efecto de impedancia cruzada, y al final del transitorio, la tension de cada salida es diferente respecto a la que tenian antes del transitorio. Este ultimo resultado se conoce como regulacion cruzada. La disminucion de los efectos de la regulacion cruzada ha sido objeto de estudio durante los ultimos anos. El objetivo ha sido el desarrollo de distintas estrategias que permiten, desde disminuir los efectos de la regulacion cruzada hasta los niveles deseables, a eliminarla completamente. El resultado final suele suponer una penalizacion sobre el diseno del sistema directamente proporcional al grado de regulacion a conseguir en las distintas salidas. Entre las soluciones propuestas para eliminar la regulacion cruzada las tecnicas de post-regulacion se han consolidado como la opcion mas aceptada ya que, pueden aplicarse a cualquier convertidor y no suponen ninguna complejidad adicional a la hora de plantear el diseno. En esta Tesis Doctoral se abordara el estudio de la tecnica conocida como postregulacion mediante transformador controlado, que si bien se ha empleado en convertidores resonantes, su modelizacion, y aplicacion en convertidores PWM, esta aun por estudiar y valorar. El primer Capitulo consiste en una breve introduccion al problema de la regulacion cruzada y la impedancia cruzada para posteriormente describir las tecnicas de post-regulacion actualmente mas empleadas, con especial atencion al post-regulador con transformador controlado. El Capitulo segundo trata del estudio de las caracteristicas estaticas del postregulador con transformador controlado. Partiendo de los estudios disponibles sobre el postregulador se plantean mejoras en su modo de actuacion y se discuten tres alternativas diferentes para controlar el transformador. Las dos primeras consisten en emplear un convertidor auxiliar Boost en sus dos modos de funcionamiento, continuo y discontinuo. La tercera consiste en controlar el transformador con una tension PWM directamente, sin filtrado. Finalmente se comprueba experimentalmente, para el estado estacionario, el funcionamiento del post-regulador para cada uno de los tres metodos de control. El Capitulo tercero trata de la dinamica de la salida controlada con el post-regulador cuando este emplea un convertidor auxiliar tipo Boost. Mediante la tecnica de promediado de variables de estado se propone el modelo de pequena senal, tanto para el modo continuo como para el modo discontinuo de funcionamiento del convertidor auxiliar. Los resultados mas significativos de esta seccion son las expresiones analiticas de las impedancias cruzadas y de la impedancia de la salida post-regulada. Como complemento al modelo de pequena senal se plantea un modelo de gran senal implementado sobre el simulador Pspice. Con este nuevo modelo se reproducen los resultados obtenidos con el modelo de pequena senal y ademas es posible simular los transitorios en las tensiones de salida ante cambios de carga. La modelizacion del convertidor cuando el transformador se controla con una tension PWM sin filtrar es el objetivo del Capitulo 4. En las secciones siguientes del Capitulo se plantea el correspondiente modelo de gran senal aplicado a un nuevo prototipo exper

Ferreres Sabater, Agustin

472

Kinetic energy of solid and liquid para-hydrogen: a path integral Monte Carlo simulation  

NASA Astrophysics Data System (ADS)

The translational (center of mass) kinetic energy of solid and liquid para-hydrogen have been recently measured by means of Deep Inelastic Neutron Scattering. We have evaluated the same quantity, in similar thermodynamic conditions, by means of Path Integral Monte Carlo computer simulation, modelling the system as composed of a set of spherical molecules interacting through a pairwise additive Lennard-Jones potential. In spite of the crude approximations on the interaction potential, the agreement is excellent. The pressure was also computed by means of the same simulations. This quantity, compared with the equation of state for solid para-hydrogen given by Driessen and Silvera, gives an agreement of a lesser quality and a negative value for the liquid state. We attribute this discrepancy to the limitations of the Lennard-Jones potential.

Zoppi, Marco; Neumann, Martin

1992-06-01

473

Improvement of some pharmaceutical properties of mycophenolate mofetil (MMF) by para sulphonatocalix[4]resorcinarene inclusion complex  

Microsoft Academic Search

As a part of our investigations to unfold the chemistry of calixresorcinarene, we have focused on the formation of inclusion\\u000a complex of a poorly soluble (43 ?g ml?1 at pH 7) drug mycophenolate mofetil (MMF) an immunosuppressive agent and an inosine monophosphate dehydrogenase (IMPDH) inhibitor\\u000a with para sulphonatocalix[4]resorcinarene (PSC4R). The complete complexation of the drug was achieved after 48 h of stirring\\u000a with

Shobhana K. Menon; Nishith R. Modi; Bhoomika Mistry; Kuldeep Joshi

2011-01-01

474

Programao 1 Encontro para Estudos em Polticas e Prticas de Educao Ambiental  

E-print Network

Programação 1º Encontro para Estudos em Políticas e Práticas de Educação Ambiental 14:00 às 14:20 - A unidade curricular Políticas de Educação Ambiental no contexto da proposta interdisciplinar do Projeto Pedagógico do Curso de Bacharelado em Ciência Ambiental do Instituto de Geociências - Profa. Patricia Almeida

Souza, Max O.

475

NMR Imaging of Catalytic Hydrogenation in Microreactors with the Use of paraHydrogen  

Microsoft Academic Search

Catalysis is vital to industrial chemistry, and the optimization of catalytic reactors attracts considerable resources. It has proven challenging to correlate the active regions in heterogeneous catalyst beds with morphology and to monitor multistep reactions within the bed. We demonstrate techniques, using magnetic resonance imaging and para-hydrogen (p-H2) polarization, that allow direct visualization of gas-phase flow and the density of

Louis-S. Bouchard; Scott R. Burt; M. Sabieh Anwar; Kirill V. Kovtunov; Igor V. Koptyug; Alexander Pines

2008-01-01

476

Injection Molding Poly(Para-phenylene) with a Rapidly Heated Mold  

Microsoft Academic Search

Poly(para-phenylene), a self-reinforced rigid-chain polymer, has superb mechanical properties. Its use as a thermoplastic polymer in injection molding, however, is prohibited because of its extremely high viscosity. In this study, an injection molding process with a rapidly heated mold was used to enhance the moldability. The mold can be heated from room temperature to 250°C in 5 s and thermally cycled

Thomas E. Kimerling; Donggang Yao; Byung H. Kim

2009-01-01

477

Projeto do sistema anti-ressonante da fiação dos transdutores para o detector Mario Schenberg  

NASA Astrophysics Data System (ADS)

O detector de ondas gravitacionais Mario Schenberg está sendo projetado e construído pelo grupo Gráviton. Sua construção está ocorrendo no Laboratório de Estado Sólido e Baixas Temperaturas (LESBT) da Universidade de São Paulo, na cidade de São Paulo. Esse detector possui uma massa ressonante esférica de cobre-alumínio, com 65 cm de diâmetro, pesando aproximadamente 1150 Kg, suspensa por um sistema de isolamento vibracional, que se encontra em fase de testes preliminares. A real eficácia desse sistema, entretanto, só poderá ser comprovada quando o detector estiver aparelhado com, pelo menos, um transdutor eletromecânico de altíssima sensibilidade acoplado à massa ressonante. Neste momento, não só este sistema de isolamento vibracional será posto em teste, como o do projeto da fiação que transporta os sinais de microondas até os transdutores e destes para a pré-amplificação. Apesar dessa fiação ter sido projetada para não apresentar nenhum contato com a superfície esférica da antena, de maneira a não haver nenhuma transmissão de ruído vibracional do laboratório para esta, deve-se minimizar o ruído microfônico produzido nessa fiação por oscilações mecânicas, uma vez que ela não utiliza nenhum sistema de isolamento vibracional. Com o intuito de resolver este problema, projetamos uma estrutura, formada por pequenos cilindros conectados por barras, a qual não terá nenhuma ressonância mecânica na faixa de freqüências de interesse para detecção (3000 - 3400 Hz). Desta forma, as vibrações nessa faixa não serão amplificadas. O projeto foi feito usando iterativamente, de maneira a otimizar os resultados obtidos, o programa de elementos finitos Msc/Nastran. Através de simulações feitas neste programa, determinamos os parâmetros geométricos ideais a serem utilizados, os quais proporcionam a maior região espectral de interesse livre de ressonâncias.

Vieira, S. J.., Jr.; Melo, J. L.

2003-08-01

478

Modelos auxiliares para problemas de programacion lineal con coeficientes imprecisos en las restricciones  

Microsoft Academic Search

Resumen  En este artículo se considera un problema de Programación Lineal en el que los coeficientes del sistema de inecuaciones lineales,\\u000a que definen el conjunto de restricciones, están dados de forma imprecisa o vaga. Se supone entonces que tales coeficientes\\u000a pueden ser definidos mediante números difusos. Se propone un enfoque de resolución basado en las distintas versiones existentes\\u000a para la comparación

L. Campos; J. L. Verdegay

1989-01-01

479

Un Marco No-Monotonico para Representar Intenciones Bajo un Modelo BDI  

E-print Network

- vas, est´an ´intimamente relacionadas con las creencias y los planes, al tiempo que proveen elementos posibilidades l´ogicas leg´itimas. As´i, resulta ilustrativo notar que aunque el cambio de creencias sobre la,8,12,16], llevando a teor´ias de revisi´on de creencias y l´ogicas no-monot´onicas para creencias, los #12;2 procesos

Guerra Hernández, Alejandro

480

Calendrio escolar para o ano lectivo 2006/2007 1 SEMESTRE  

E-print Network

de Curso) Período de Aulas do 1º Ano: Segunda-feira, dia 25 de Setembro de 2006, a Sexta-feira, dia, a Quinta-feira, dia 14 de Setembro de 2006 �poca Especial de Exames referente ao ano de 2006/2007 SegundaCalendário escolar para o ano lectivo 2006/2007 1º SEMESTRE Período de Aulas (excepto 1ºano

Ribeiro,Isabel

481

SAGISc: Sistema Colaborativo para Recolha de Dados Paula Andr Pedro Antunes  

E-print Network

, etc. A segunda etapa processa-se no campo, onde se efectua o levantamento da geologia da área. Este deslocações ao local de estudo. � de salientar que actualmente este processo pode demorar alguns anos. Este verificar as situações de dúvida ou para dar uma segunda opinião sobre determinado elemento geológico. O

Antunes, Pedro

482

Lanzamiento del estudio de tratamiento personalizado para el cáncer de seno  

Cancer.gov

Hoy se inició el Estudio de Asignación de Opciones Individualizadas de Tratamiento (Trial Assigning IndividuaLized Options for Treatment (Rx), o TAILORx, el cual evaluará si los genes que están frecuentemente asociados con el riesgo de recurrencia entre las mujeres con cáncer de seno en etapa inicial pueden ser utilizados para asignar a las pacientes el tratamiento más adecuado y efectivo. Preguntas y respuestas

483

Aplicando Metodos de Aprendizaje Sensible al Coste para Mejorar Problemas de Big Data  

E-print Network

´ecnicas de miner´ia de datos no est´an bien preparadas para afrontar los requerim- ientos de tiempo y espacio datos y las tecnolog´ias de miner´ia de datos han quedado desbordados por no poder hacer frente a dichas,vlopez,j.m.benitez,herrera}@decsai.ugr.es Abstract. Debido a la explosi´on y proliferaci´on de datos en los ´ultimos a~nos, surge la necesidad de

Granada, Universidad de

484

Propuesta de Diseño para la Gestión Colaborativa del Conocimiento Mediante Información Semántica  

Microsoft Academic Search

ABSTRACT Uno,de los ,efectos indeseables ,de la ,introducción de las tecnologías de la información y las comunicaciones, Internet y la Web ha sido ,la sobrecarga ,de información. Se están buscando soluciones,a este ,problema ,desde ,distintos campos ,de investigación, Gestión del Conocimiento, Minería de Información, Web Semántica, etc. Una hipótesis interesante para buscar soluciones a este problema,en el ámbito de los

Jaime Moreno Llorena; Xavier Alamán Roldán; Ruth Cobos Pérez

485

Solvatochromism and preferential solvation of para -derivatives of guaiacol in water-N,N-dimethylformamide mixtures  

Microsoft Academic Search

The influence of the composition of the water-N,N-dimethylformamide mixed solvent on the position of the B absorption band\\u000a in UV spectra of 2-methoxyphenol, its para-substituted derivatives, and corresponding phenolate anions simulating base units of natural lignin is investigated. The\\u000a data obtained are interpreted in terms of the model of preferential solvation. The preferential solvation parameters and compositions\\u000a of the solvation

D. S. Kosyakov; N. S. Gorbova; K. G. Bogolitsyn; L. V. Gusakov

2007-01-01

486

Exito para el XVI Festival Internacional de Teatro Hispano del Teatro Avante  

E-print Network

Nueva York del 20 al 30 de junio 2001 en el New 42nd Street Studios logró traer maravillosos representantes del teatro latinoamericano y español contemporáneo. En Miami el programa incluyó: Cenizas sobre el mar (Colombia/Miami), La ciudad sitiada...) y Melodrama (Brasil). Y hubo tres obras de teatrodanza: Jacinta-todas las plegarias (Ecuador/EEUU), Seque volverás (Colombia) y Materia (Brasil). Por último el Teatro Taller de Colombia presentó Los cíngaros, obra para espacios abiertos públicos...

Marrero, Marí a Teresa

2002-04-01

487

ltima Hora Seminario Orientacin para Mayores de 25 Aos NOTICIAS Y EVENTOS  

E-print Network

Alumnos/as para las sesiones del 14 al 28 de marzo (Publicada 10/03/2014) Importante: El aula común de la Primer Apellido y Aula del Aulario II de 16 a 19 horas: Aula Desde Hasta C02 A L C03 M Z 19.30 - 21.00 : Los alumnos que deseen asistir a la clase sobre el manejo del Campus Virtual deberán acudir a las

Escolano, Francisco

488

Mitotic Haploidization by Treatment of Aspergillus niger Diploids with para-Fluorophenylalanine  

Microsoft Academic Search

IN genetic analysis based on mitotic segregation1-4 an important step is the recovery of haploid segregants from heterozygous diploids. This has been done until recently by laborious or complicated techniques4,5. I am indebted to Dr. G. Morpurgo, of the Istituto Superiore di Sanità, Rome, for informing me and permitting me to make use of his discovery that treatment with para-fluoro-phenylalanine

Pol Lhoas

1961-01-01

489

Natural bond orbital (NBO) population analysis of para-substituted S-Nitroso-thiophenols  

Microsoft Academic Search

Theoretical study of several para-substituted S-Nitroso-thiophenols has been performed using quantum computational ab initio RHF and density functional B3LYP and B3PW91 methods with 6-31G(d,p) basis set. Geometries obtained from DFT calculations were used to perform NBO analysis. It is noted that the weakness in the SN sigma bond is due to nO1??S3N2? delocalisation and is responsible for the longer SN

Li Xiao-Hong; Tang Zheng-Xin; Zhang Xian-Zhou

2009-01-01

490

An Unusual Case of Bilateral Maxillary and Mandibular Para Premolar: A Case Report  

PubMed Central

The presence of supernumerary teeth is not uncommon in the general population. They occur more frequently in patients with a family history of such teeth. It is rare to find multiple supernumeraries in individuals with no other associated disease or syndrome. There have been very few documented cases of bilateral maxillary and mandibular supernumeraries in the premolar region. An unusual case of a 35-year-old man with six para premolars and complete dentition is presented. PMID:24396358

Chanagay, Sunil Kumar Vishwanath; Singh, Vikram; Bantwal, Sunil Rao; Muniyappa, Manjunatha

2013-01-01

491

ACADEMIA DE POLCIA CIVIL CONCURSO PBLICO PARA PROVIMENTO DE VAGAS E FORMAO DE CADASTRO DE RESERVA  

E-print Network

ACADEMIA DE POLÍCIA CIVIL CONCURSO P�BLICO PARA PROVIMENTO DE VAGAS E FORMA��O DE CADASTRO DE ACADEMIA DE POLÍCIA CIVIL DO DISTRITO FEDERAL (APCDF), no uso de suas atribuições legais, torna pública inalterados os demais itens e subitens do referido edital. SANDRA GOMES MELO Diretora da Academia de Polícia

Maier, Rudolf Richard

492

Oficinas aprovadas OF1 Ensino de portugus como segunda lngua: uma abordagem bilngue para surdos  

E-print Network

(HQ's): análise de livros didáticos de ensino de Espanhol/LE Carolina Parrini Ferreira e Camila no ensino de E/LE; ii) analisar o uso do gênero HQ em livros didáticos para o ensino de E/LE; iii) propor tem o potencial de dar vida ao livro didático, através da criação de personagens e contações. Propomos

493

Contribuição dos fatores de risco psicossociais para o transtorno de déficit de atenção\\/hiperatividade  

Microsoft Academic Search

RESUMO - Objetivo: Analisar a contribuição dos fatores psicossociais para a ocorrência do transtorno de déficit de atenção\\/hiperatividade (TDAH).M é t o d o:Este é um estudo retrospectivo de casos-controles que analisou 403 alunos de uma escola pública primária. Preencheram-se o questionário de sintomas do DSM- IV e um questionário psicossocial específico e realizaram-se anamnese e exames físico e neurológico

Marcio M. Vasconcelos; Ana Flávia de A. Malheiros; Jairo Werner Jr.; Adriana R. Brito; Jane Bardawil Barbosa; Ítalo S. Oliveira Santos; Daniel Fampa N. Lima

2005-01-01

494

Stable self-trapping and ring formation in polydiacetylene para-toluene sulfonate  

NASA Astrophysics Data System (ADS)

Numerical simulations of two-dimensional beam propagation in polydiacetylene para-toluene sulfonate measured values for n2>0 and n3<0 , where Delta n=n2I+n 3I2 , predict stable self-trapping and a new phenomenon in which a spatial ring evolves from a Gaussian input beam. We interpret the numerical results theoretically, using the variational model of nonlinear Gaussian beam propagation.

Wright, Ewan M.; Lawrence, Brian L.; Torruellas, William; Stegeman, George

1995-12-01

495

RETROANLISE NEURAL PARA A IDENTIFICAO DOS PARMETROS ELSTICOS DA BARRAGEM CASCA DE FUNIL.  

E-print Network

1 RETROANÁLISE NEURAL PARA A IDENTIFICA��O DOS PAR�METROS ELÁSTICOS DA BARRAGEM CASCA DE FUNIL trabalho utiliza­se uma rede neural na identificação dos parâmetros elásticos dos materiais da casca e do maciço de fundação da barragem de Funil, a partir das medições efetuadas em cinco pontos instrumentados

Coutinho, Alvaro L. G. A.

496

Reitor da Universidade de Lisboa reclama "medidas urgentes" para ensino superior  

E-print Network

Reitor da Universidade de Lisboa reclama "medidas urgentes" para ensino superior António Cruz Serra tomou posse como reitor da nova universidade que resulta da fusão da Clássica com a Técnica. Cruz Serra reitor da Universidade de Lisboa (UL), resultante da fusão entre a Clássica e a Técnica, falou nesta

Instituto de Sistemas e Robotica

497

Design, synthesis and structure of novel para-quinones and their antibacterial activity.  

PubMed

Eight new para-quinones and one known analogue have been synthesized from p-chloranil. Five have been structurally characterized by single crystal diffraction, and a range of ligand folding is observed. All nine have been tested for their potency towards Gram(+) S. aureus and Gram(-) E. coli. Quinones 3, 6, 7 and 8 have shown activity towards S. aureus and quinones 3 and 8 also show good activity towards E. coli. PMID:21756289

Pandurangan, Komala; Murnaghan, Kevin D; Walshe, Aurora; Müller-Bunz, Helge; Paradisi, Francesca; Morgan, Grace G

2011-11-01

498

UM MODELO PARA RECOMENDAÇÃO DE ARTIGOS ACADÊMICOS BASEADO EM FILTRAGEM COLABORATIVA APLICADO À AMBIENTES MÓVEIS  

Microsoft Academic Search

Resumo. Sistemas de Recomendação (SR) são hoje amplamente utilizados, principalmente na área de e-commerce como, por exemplo, Amazon.com e Submarino.com. Neste trabalho, propõe-se a utilização destes sistemas na educação, especificamente para a recomendação de conteúdo em dispositivos móveis. A vantagem de se utilizar sistemas de recomendação em dispositivos móveis está na facilidade da entrega da recomendação aos usuários. Com base

Sílvio César Cazella

499

4-Amino-12-methyl­sulfon­yloxy-[2.2]para­cyclo­phane  

PubMed Central

The title compound, C17H19NO3S, was synthesized from 4-benzhydryl­idene­amino-12-hy­droxy-[2.2]para­cyclo­phane and methane­sulfonyl chloride. In the mol­ecule, the distance between the centroids of two aromatic rings is 2.960?(5)?Å. In the crystal, weak N—H?O and C—H?O hydrogen bonds link the mol­ecules into layers parallel to the ac plane. PMID:24526969

Meng, Xiangchao; Duan, Wenzeng; Han, Yinfeng

2014-01-01

500

Spontaneous rearrangement of para-sexiphenyl crystallites into nano-fibers  

Microsoft Academic Search

In the growth of para-sexiphenyl films on mica(001), an interesting phenomenon was observed where small individual crystallites\\u000a spontaneously arrange into parallel running high-aspect ratio chains with a length in the micrometer range. A statistical\\u000a analysis of the chain dimensions reveals a very narrow length distribution and the existence of a threshold length. The observation\\u000a of denuded zones around the chains

C. Teichert; G. Hlawacek; A. Yu. Andreev; H. Sitter; P. Frank; A. Winkler; N. S. Sariciftci

2006-01-01