7 CFR 15b.12 - Discrimination prohibited.

Science.gov (United States)

2010-01-01

... 7 Agriculture 1 2010-01-01 2010-01-01 false Discrimination prohibited. 15b.12 Section 15b.12... ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE Employment Practices § 15b.12 Discrimination prohibited. (a... discrimination in employment under any program or activity receiving assistance from this Department. (2) A...

45 CFR 12.15 - Reports to Congress.

Science.gov (United States)

2010-10-01

... 45 Public Welfare 1 2010-10-01 2010-10-01 false Reports to Congress. 12.15 Section 12.15 Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION DISPOSAL AND UTILIZATION OF SURPLUS REAL PROPERTY FOR PUBLIC HEALTH PURPOSES § 12.15 Reports to Congress. The Secretary will make such...

Executive function in children with prenatal cocaine exposure (12-15years).

Science.gov (United States)

Minnes, Sonia; Min, Meeyoung O; Short, Elizabeth J; Wu, Miaoping; Lang, Adelaide; Yoon, Susan; Singer, Lynn T

Prenatal exposure to cocaine (PCE) may alter areas of the brain dense with monoamine receptors such as the prefrontal cortex and negatively affect cognitive processes implicated in executive function (EF). This study investigated the effects of PCE on EF at 12 and 15years. EF was examined in 189 PCE and 183 non-cocaine exposed (NCE) children who were primarily African American and of low socioeconomic status. Caregivers rated their child on the Behavior Rating Inventory of Executive Function (BRIEF) at ages 12 and 15. The BRIEF includes two summary scales and eight subscales: Behavioral Regulation Index (BRI) (Inhibit, Shift, and Emotion) and Metacognition Index (MI) (Monitor, Working Memory, Plan/Organize, Organization of Materials and Task Completion). Two additional measures were included at age 15 (BRIEF Self-Report and the CANTAB Stockings of Cambridge (SOC)). Girls with PCE were perceived by caregivers to have more behavioral regulation problems at age 12 (p<0.005) and more metacognitive problems at age 12 (p<0.003) than NCE females, but there was no association for males. PCE girls improved in behavioral regulation (p<0.05) and metacognition (p<0.04) from 12 to 15years compared to NCE girls based on caregiver report. By self-report PCE was associated with problems of inhibition (p<0.006). Girls with PCE performed more poorly on number of moves to complete the SOC, requiring planning and problem solving, than NCE girls. Prenatally cocaine exposed girls were perceived by caregivers as having problems of behavioral regulation, and by self-report, inhibitory control problems. Girls with PCE also performed more poorly on a task of planning and problem solving at age 15 which corresponded to caregiver report at age 12. Early assessment and remediation of these weaknesses in girls may improve school performance and behavior associated with poor EF. Copyright © 2016. Published by Elsevier Inc.

File list: Pol.Emb.05.AllAg.Mitotic_cycle_12 [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Pol.Emb.05.AllAg.Mitotic_cycle_12 dm3 RNA polymerase Embryo Mitotic cycle 12 SRX750...068 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/Pol.Emb.05.AllAg.Mitotic_cycle_12.bed ...

15 CFR 12.1 - Introduction.

Science.gov (United States)

2010-01-01

... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Introduction. 12.1 Section 12.1 Commerce and Foreign Trade Office of the Secretary of Commerce FAIR PACKAGING AND LABELING § 12.1 Introduction. (a) These procedures apply to the discharge of the responsibility given to the Secretary of...

15 CFR 20.12 - Mediation.

Science.gov (United States)

2010-01-01

... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Mediation. 20.12 Section 20.12... Procedures § 20.12 Mediation. (a) DOC will refer to a mediation service designated by the Secretary all... further processing. (b) Both the complainant and the recipient shall participate in the mediation process...

Effects of film thickness and preferred orientation on the dielectric properties of (Bi1.5Zn0.5)(Zn0.5Nb1.5)O7 films

International Nuclear Information System (INIS)

Cao, L Z; Fu, W Y; Wang, S F; Wang, Q; Sun, Z H; Yang, H; Cheng, B L; Wang, H; Zhou, Y L

2007-01-01

(Bi 1.5 Zn 0.5 )(Zn 0.5 Nb 1.5 )O 7 (BZN) films with different thicknesses and preferred orientations have been fabricated on Nb doped SrTiO 3 substrates by pulsed laser deposition. As the thickness increases, the permittivity increases, and the dielectric loss decreases, while the tunability only has a little variation. The asymmetric behaviour of the electric field dependent permittivity reduces gradually with the increasing thickness, which should be attributed to the decrease in the effect of the interfacial layer between the dielectric film and substrate (electrode). Furthermore, compared with the (1 0 0) oriented BZN film, BZN film with (1 1 1) preferred orientation exhibits high dielectric loss

File list: DNS.Emb.05.AllAg.Mitotic_cycle_12-14 [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available DNS.Emb.05.AllAg.Mitotic_cycle_12-14 dm3 DNase-seq Embryo Mitotic cycle 12-14 http:...//dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/DNS.Emb.05.AllAg.Mitotic_cycle_12-14.bed ...

Electrical analysis of inter-growth structured Bi4Ti3O12-Na0.5Bi4.5Ti4O15 ceramics

Science.gov (United States)

Jiang, Xiangping; Jiang, Yalin; Jiang, Xingan; Chen, Chao; Tu, Na; Chen, Yunjing

2017-06-01

Inter-growth bismuth layer-structured ferroelectrics (BLSFs), Bi4Ti3O12-Na0.5Bi4.5Ti4O15 (BIT-NBT), were successfully synthesized using the traditional solid-state reaction method. X-ray diffraction (XRD) Rietveld refinements were conducted using GSAS software. Good agreement and low residual are obtained. The XRD diffraction peaks can be well indexed into I2cm space group. The inter-growth structure was further observed in the high-resolution TEM image. Dielectric and impedance properties were measured and systematically analyzed. At the temperature range 763-923 K (below {T}{{c}}), doubly ionized oxygen vacancies (OVs) are localized and the short-range hopping leads to the relaxation processes with an activation energy of 0.79-1.01 eV. Above {T}{{c}}, the doubly charged OVs are delocalized and become free ones, which contribute to the long-range dc conduction. The reduction in relaxation species gives rise to a higher relaxation activation energy ˜1.6  eV. Project supported by the National Natural Science Foundation of China (Grant Nos. 51562014, 51262009, and 51602135).

Assessment of ocular hypotensive effect and safety 12 months after changing from an unfixed combination to a latanoprost 0.005% + timolol maleate 0.5% fixed combination.

Science.gov (United States)

Inoue, Kenji; Okayama, Ryoko; Higa, Risako; Wakakura, Masato; Tomita, Goji

2012-01-01

Latanoprost 0.005% + timolol maleate 0.5% combined eyedrops were recently made available in Japan. We prospectively investigated the intraocular pressure (IOP)-lowering effect, visual preservation effect, and adverse reactions of a one-year administration of this fixed combination. The subjects included 162 eyes from 162 patients diagnosed with either primary open-angle glaucoma or ocular hypertension and using an unfixed combination of latanoprost 0.005% and timolol maleate 0.5%. The unfixed combination was discontinued and replaced with the latanoprost 0.005% + timolol maleate 0.5% fixed combination with no washout period. IOP was measured before (baseline) and 3, 6, 9, and 12 months after the change. The mean deviation value of Humphrey field analysis was compared. Adverse reactions were examined at every follow-up. No significant differences were found between mean IOP values obtained at baseline (mean ± standard deviation, 15.2 ± 3.3 mmHg) 3 months (15.1 ± 3.2 mmHg), 6 months (15.3 ± 3.1 mmHg), 9 months (15.3 ± 3.1 mmHg), and 12 months (15.1 ± 3.2 mmHg) after the change from the unfixed to the fixed combination of eyedrops (P = 0.212). In addition, no significant differences were observed between mean deviation values obtained at baseline (-9.11 ± 6.94 dB) and 12 months (-10.08 ± 7.24 dB) after the change (P = 0.114). Thirty-one patients discontinued the fixed combination within 12 months of replacement, due to an insufficient IOP decrease (20 patients, 12.3%) and adverse reactions (11 patients, 6.8%). Following replacement of two eyedrop medications (latanoprost 0.005% and timolol maleate 0.5%) by one fixed combination (latanoprost 0.005% + timolol maleate 0.5%), IOP and visual field were preserved. However, 20% of the patients discontinued the new treatment because of an insufficient IOP decrease and complaints of adverse reactions.

Erratum. Quitina y quitosano: materiales del pasado para el presente y el futuro. Avances en Química, 1(2, 15-21 (2006

Directory of Open Access Journals (Sweden)

2010-09-01

Full Text Available Author of the manuscript entitled “Quitina y quitosano: materiales del pasado para el presente y el futuro” (Avances en Química, 1(2, 15-21 (2006 have reported that in the page 16, line 5, column 2, should be “acetilación” instead of “desacetilación”. Similarly, Fig. 1 should be replaced by the following one:

TRMM Microwave Imager (TMI) Level 3 Monthly 0.5 degree x 0.5 degree Profiling V7 (3A12) at GES DISC V7

Data.gov (United States)

National Aeronautics and Space Administration — This document provides basic information on 3A12, TMI Monthly 0.5 deg. x 0.5 deg. Profiling. Algorithm 3A12 produces global 0.5 deg. x 0.5 deg. monthly gridded means...

File list: InP.Emb.05.AllAg.Mitotic_cycle_12 [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.Emb.05.AllAg.Mitotic_cycle_12 dm3 Input control Embryo Mitotic cycle 12 SRX7500...69 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/InP.Emb.05.AllAg.Mitotic_cycle_12.bed ...

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Full Text Available Unc.Emb.05.AllAg.8-12h_embryos dm3 Unclassified Embryo 8-12h embryos SRX013080,SRX0...13116 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/Unc.Emb.05.AllAg.8-12h_embryos.bed ...

File list: Oth.Emb.05.AllAg.1-2h_embryos [Chip-atlas[Archive

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Full Text Available Oth.Emb.05.AllAg.1-2h_embryos dm3 TFs and others Embryo 1-2h embryos SRX197583,SRX1...97584 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/Oth.Emb.05.AllAg.1-2h_embryos.bed ...

46 CFR 12.15-13 - Deck engine mechanic.

Science.gov (United States)

2010-10-01

... 46 Shipping 1 2010-10-01 2010-10-01 false Deck engine mechanic. 12.15-13 Section 12.15-13 Shipping... ENDORSEMENTS Qualified Member of the Engine Department § 12.15-13 Deck engine mechanic. (a) An applicant for an endorsement as deck engine mechanic shall be a person holding an MMC or MMD endorsed as junior engineer. The...

15 CFR 785.12 - Hearings.

Science.gov (United States)

2010-01-01

... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Hearings. 785.12 Section 785.12 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) BUREAU OF... will be taken by reporter or by electronic recording, and filed with the ALJ. If any party wishes to...

File list: Oth.Emb.05.AllAg.10-12h_embryos [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Oth.Emb.05.AllAg.10-12h_embryos dm3 TFs and others Embryo 10-12h embryos SRX760381,...SRX760382,SRX760383,SRX760380 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/Oth.Emb.05.AllAg.10-12h_embryos.bed ...

File list: His.Emb.05.AllAg.Mitotic_cycle_12-14 [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available His.Emb.05.AllAg.Mitotic_cycle_12-14 dm3 Histone Embryo Mitotic cycle 12-14 SRX6474...41,SRX647443,SRX647442,SRX647440 http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/His.Emb.05.AllAg.Mitotic_cycle_12-14.bed ...

12 CFR 404.15 - Initial determination.

Science.gov (United States)

2010-01-01

... 12 Banks and Banking 4 2010-01-01 2010-01-01 false Initial determination. 404.15 Section 404.15 Banks and Banking EXPORT-IMPORT BANK OF THE UNITED STATES INFORMATION DISCLOSURE Access to Records Under the Privacy Act of 1974 § 404.15 Initial determination. (a) Time for processing. The Freedom of...

15 CFR 16.12 - Consumer education.

Science.gov (United States)

2010-01-01

... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Consumer education. 16.12 Section 16.12 Commerce and Foreign Trade Office of the Secretary of Commerce PROCEDURES FOR A VOLUNTARY CONSUMER PRODUCT INFORMATION LABELING PROGRAM § 16.12 Consumer education. The Secretary, in close cooperation and...

File list: NoD.Emb.05.AllAg.Mitotic_cycle_12-14 [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available NoD.Emb.05.AllAg.Mitotic_cycle_12-14 dm3 No description Embryo Mitotic cycle 12-14 ...http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/NoD.Emb.05.AllAg.Mitotic_cycle_12-14.bed ...

Synthesis and electrochemical properties of LiNi0.4Mn1.5Cr0.1O4 and Li4Ti5O12

CSIR Research Space (South Africa)

Liu, GQ

2011-08-01

Full Text Available Spinel compound LiNi0.4Mn1.5Cr0.1O4 (LNMCO) and Li4Ti5O12 (LTO) were synthesized by the sol-gel method and the solid-state method, respectively. The particle sizes of the products LiNi0.4Mn1.5Cr0.1O4 and Li4Ti5O12 were 0.5 to 2 um and 0.5 to 0.8 um...

12 CFR 1402.15 - Business information.

Science.gov (United States)

2010-01-01

... Information Officer shall, to the extent permitted by law, provide a business submitter with prompt written... Insurance Corporation shall, to the extent permitted by law, afford a business submitter a reasonable period... 12 Banks and Banking 7 2010-01-01 2010-01-01 false Business information. 1402.15 Section 1402.15...

C-axial oriented (Bi1.5Zn0.5)(Zn0.5Nb1.5)O7 thin film grown on Nb doped SrTiO3 substrate by pulsed laser deposition

International Nuclear Information System (INIS)

Cao, L Z; Fu, W Y; Wang, S F; Wang, Q; Sun, Z H; Yang, H; Cheng, B L; Wang, H; Zhou, Y L

2007-01-01

A c-axial oriented (Bi 1.5 Zn 0.5 )(Zn 0.5 Nb 1.5 )O 7 thin film has been grown on a (0 0 1) Nb doped SrTiO 3 substrate by pulsed laser deposition. The permittivity, dielectric loss and tunability of the c-axial oriented film are 187, 0.002 and 6% (at 750 kV cm -1 biasing), respectively, indicating a figure of merit of 30. Moreover, an asymmetry behaviour is observed in the dc electric field dependence of permittivity, which could be attributed to the asymmetry of top and bottom electrodes

PARENT NURTURE MODEL IN SHAPING BEHAVIOR OF ADOLESCENCE 12-15 AGES

Directory of Open Access Journals (Sweden)

Dimas Hadi Prayoga

2017-02-01

Full Text Available Introduction: The deviation problem of smoking activity an adolescent is come to anxious level for parents, teachers, and society. The correlation between parents nurture model and smoking activity of adolescent needs to be examined further. The purpose of this study was to analyze the correlation between parents nurture model with smoking activity of adolescent (12-15 years old. Method: This was correlational research with cross sectional approach. The sample were 84 adolescent (12-15 years old at MTs Mojosari Nganjuk. The independent variables was parents nurture model and the dependent variable was adolescent smoking activity. Data were collected by using questionnare, then examined by using chi square with the level of significant α=0,05. Result: Statistical analysis had showed the low correlation between permissive parents nurture model with smoking activity of adolescent (12-15 years old at MTs Mojosari Nganjuk (p=0,049; r = 0,210 and no correlation between democratic nurture model (p=0,554 and authoritative nurture model (p=0,418 with smoking activity of adolescent (12-15 years old at MTs Mojosari Nganjuk, but only permissive model which correlate with smoking activity. The permissive parents with no control and demand caused adolescent to be feeling unimpeded to do smoking activity since there is no warning and punishment from the parents. Discussion: So that, School nurses should provide health promotion to parents in making appropriate parenting in adolescence. Parents should have the right parenting provided in accordance with the age and development of adolescents because appropriate parenting will have a positive impact on adolescent behavior. Further research on parenting questionnaires must be checked for cross-compatibility between questionnaire answers given adolescent and parents to know the truth in filling out the questionnaire. The differences in this study compared to previous studies is the researcher doing research in

Complete fusion of the 12C+12O, 14N+12C and 15N+12C systems

International Nuclear Information System (INIS)

Conjeaud, M.; Gary, S.; Harar, S.; Wieleczko, J.P.

1978-01-01

Cross sections for evaporation residues following the complete fusion of the 12 C+ 12 C, 14 N+ 12 C and 15 N+ 12 C systems have been measured with a E-ΔE counter telescope in a wide range of incident energies. They are fairly well reproduced by evaporation calculations based on the statistical theory. The total fusion excitation function of the 12 C+ 12 C system shows strong structure, which is compared to the predictions of the reaction cross sections derived from coupled channel calculations and to the integrated inelastic cross sections. Critical angular momenta have been obtained from the fusion cross-section data and these values are discussed in the framework of compound nucleus and entrance channel effects. A striking difference is observed between the fusion cross sections of the 14 N+ 12 C and 15 N+ 12 C systems and shows the importance of the valence nucleons of colliding ions in the fusion process. A possible interpretation might be the influence of the yrast line of the compound nuclei. (Auth.)

Roles of Cu in the Enhanced Thermoelectric Properties in Bi0.5Sb1.5Te₃.

Science.gov (United States)

Hao, Feng; Qiu, Pengfei; Song, Qingfeng; Chen, Hongyi; Lu, Ping; Ren, Dudi; Shi, Xun; Chen, Lidong

2017-03-01

Recently, Cu-containing p-type Bi 0.5 Sb 1.5 Te₃ materials have shown high thermoelectric performances and promising prospects for practical application in low-grade waste heat recovery. However, the position of Cu in Bi 0.5 Sb 1.5 Te₃ is controversial, and the roles of Cu in the enhancement of thermoelectric performance are still not clear. In this study, via defects analysis and stability test, the possibility of Cu intercalation in p-type Bi 0.5 Sb 1.5 Te₃ materials has been excluded, and the position of Cu is identified as doping at the Sb sites. Additionally, the effects of Cu dopants on the electrical and thermal transport properties have been systematically investigated. Besides introducing additional holes, Cu dopants can also significantly enhance the carrier mobility by decreasing the Debye screen length and weakening the interaction between carriers and phonons. Meanwhile, the Cu dopants interrupt the periodicity of lattice vibration and bring stronger anharmonicity, leading to extremely low lattice thermal conductivity. Combining the suppression on the intrinsic excitation, a high thermoelectric performance-with a maximum thermoelectric figure of merit of around 1.4 at 430 K-has been achieved in Cu 0.005 Bi 0.5 Sb 1.495 Te₃, which is 70% higher than the Bi 0.5 Sb 1.5 Te₃ matrix.

Spinel LiNi0.5Mn1.5O4 as superior electrode materials for lithium-ion batteries: Ionic liquid assisted synthesis and the effect of CuO coating

International Nuclear Information System (INIS)

Li, Xueliang; Guo, Wei; Liu, Yunfu; He, Wenxiang; Xiao, Zhenghui

2014-01-01

The LiNi 0.5 Mn 1.5 O 4 with different morphologies have been successfully prepared through co-precipitation route in mixed solution containing 1-dodecyl-3-methylimidazolium bromide ([C 12 mim]Br) and H 2 O with different mass ratios and followed by a solid reaction at high temperature. The morphology of LiNi 0.5 Mn 1.5 O 4 varies with the increasing ratio of [C 12 mim]Br. These samples synthesized at three kinds of concentrations present flake-like morphology, agglomerated flake-like structure and polygon particles with size about 700 nm, respectively. The as-prepared LiNi 0.5 Mn 1.5 O 4 with polygon structure presents the highest discharge capacity. The optimal LiNi 0.5 Mn 1.5 O 4 sample was modified with 1, 3 and 5 wt.% CuO, respectively. The electrochemical testing results demonstrate 3 wt.% CuO-modified material had the capacity retention of higher than 95% after 100 cycles, and high capacity of 98.7 mAh g −1 at 10 C rate, in comparison with the capacity retention of 83% and capacity of 63.6 mAh g −1 for the pristine one. The remarkably improved rate performance and cycling stability can be attributed to CuO coating, which acts as an effective lithium-ion conductor and a protective material against corrosion from electrolyte

31 CFR 15.737-12 - Contents of complaint.

Science.gov (United States)

2010-07-01

... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Contents of complaint. 15.737-12 Section 15.737-12 Money and Finance: Treasury Office of the Secretary of the Treasury POST EMPLOYMENT... charges against him/her so that the respondent is able to prepare a defense. (b) Demand for answer. In the...

Analysis of Microstructure and Sliding Wear Behavior of Co1.5CrFeNi1.5Ti0.5 High-Entropy Alloy

Science.gov (United States)

Lentzaris, K.; Poulia, A.; Georgatis, E.; Lekatou, A. G.; Karantzalis, A. E.

2018-04-01

Α Co1.5CrFeNi1.5Ti0.5 high-entropy alloy (HEA) of the well-known family of CoCrFeNiTi has been designed using empirical parameters. The aim of this design was the production of a HEA with fcc structure that gives ductile behavior and also high strength because of the solid solution effect. The VEC calculations (8.1) supported the fcc structure while the δ factor calculations (4.97) not being out of the limit values, advised a significant lattice distortion. From the other hand, the ΔΗ mix calculations (- 9.64 kJ/mol) gave strong indications that no intermetallic would be formed. In order to investigate its potential application, the Co1.5CrFeNi1.5Ti0.5 HEA was prepared by vacuum arc melting and a primary assessment of its surface degradation response was conducted by means of sliding wear testing using different counterbody systems for a total sliding distance of 1000 m. An effort to correlate the alloy's wear response with the microstructural characteristics was attempted. Finally, the wear behavior of the Co1.5CrFeNi1.5Ti0.5 HEA was compared with that of two commercially used wear-resistant alloys. The results obtained provided some first signs of the high-entropy alloys' better wear performance when tested under sliding conditions against a steel ball.

17 CFR 240.15c1-2 - Fraud and misrepresentation.

Science.gov (United States)

2010-04-01

... 17 Commodity and Securities Exchanges 3 2010-04-01 2010-04-01 false Fraud and misrepresentation. 240.15c1-2 Section 240.15c1-2 Commodity and Securities Exchanges SECURITIES AND EXCHANGE COMMISSION... Securities Exchange Act of 1934 Rules Relating to Over-The-Counter Markets § 240.15c1-2 Fraud and...

Microwave dielectric properties of La{sub (1-2x/3)}Ba{sub x}(Mg{sub 0.5}Sn{sub 0.5})O{sub 3} ceramics

Energy Technology Data Exchange (ETDEWEB)

Chen, Yih-Chien; Chen, Kuei-Chien; Hsu, Wei-Yu [Department of Electrical Engineering, Lunghwa University of Science and Technology, Gueishan Shiang, Taoyuan County (China)

2010-11-15

This study examined the potential applications of microwave dielectric properties of La{sub (1-2x/3)}Ba{sub x}(Mg{sub 0.5}Sn{sub 0.5})O{sub 3} ceramics in rectenna. The La{sub (1-2x/3)}Ba{sub x}(Mg{sub 0.5}Sn{sub 0.5})O{sub 3} ceramics were prepared by the conventional solid-state method with various sintering temperatures. An apparent density of 6.62 g/cm{sup 3}, a dielectric constant of 20.3, a quality factor of 51,700 GHz, and a temperature coefficient of resonant frequency of -78.2 ppm/K were obtained for La{sub 2.98/3}Ba{sub 0.01}(Mg{sub 0.5}Sn{sub 0.5})O{sub 3} ceramics that were sintered at 1550 C for 4 h. (copyright 2010 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

15 CFR 2008.12 - Foreign government information.

Science.gov (United States)

2010-01-01

... 15 Commerce and Foreign Trade 3 2010-01-01 2010-01-01 false Foreign government information. 2008.12 Section 2008.12 Commerce and Foreign Trade Regulations Relating to Foreign Trade Agreements OFFICE OF THE UNITED STATES TRADE REPRESENTATIVE REGULATIONS TO IMPLEMENT E.O. 12065; OFFICE OF THE UNITED...

Synthesis cathode material LiNi0.80Co0.15Al0.05O2 with two step solid-state method under air stream

Science.gov (United States)

Xia, Shubiao; Zhang, Yingjie; Dong, Peng; Zhang, Yannan

2014-01-01

A facile generic strategy of solid-state reaction under air atmosphere is employed to prepare LiNi0.8Co0.15Al0.05O2 layer structure micro-sphere as cathodes for Li-ion batteries. The impurity phase has been eliminated wholly without changing the R-3m space group of LiNi0.8Co0.15Al0.05O2. The electrochemical performance of LiNi0.8Co0.15Al0.05O2 cathodes depend on the sintering step, temperature, particle size and uniformity. The sample pre-sintered at 540 °C for 12 h and then sintered at 720 °C for 28 h exhibits the best electrochemical performance, which delivers a reversible capacity of 180.4, 165.8, 154.7 and 135.6 mAhg-1 at 0.2 C, 1 C, 2 C and 5 C, respectively. The capacity retention keeps over 87% after 76 cycles at 1 C. This method is simple, cheap and mass-productive, and thus suitable to large scale production of NCA cathodes directly used for lithium ion batteries.

Roles of Cu in the Enhanced Thermoelectric Properties in Bi0.5Sb1.5Te3

Directory of Open Access Journals (Sweden)

Feng Hao

2017-03-01

Full Text Available Recently, Cu-containing p-type Bi0.5Sb1.5Te3 materials have shown high thermoelectric performances and promising prospects for practical application in low-grade waste heat recovery. However, the position of Cu in Bi0.5Sb1.5Te3 is controversial, and the roles of Cu in the enhancement of thermoelectric performance are still not clear. In this study, via defects analysis and stability test, the possibility of Cu intercalation in p-type Bi0.5Sb1.5Te3 materials has been excluded, and the position of Cu is identified as doping at the Sb sites. Additionally, the effects of Cu dopants on the electrical and thermal transport properties have been systematically investigated. Besides introducing additional holes, Cu dopants can also significantly enhance the carrier mobility by decreasing the Debye screen length and weakening the interaction between carriers and phonons. Meanwhile, the Cu dopants interrupt the periodicity of lattice vibration and bring stronger anharmonicity, leading to extremely low lattice thermal conductivity. Combining the suppression on the intrinsic excitation, a high thermoelectric performance—with a maximum thermoelectric figure of merit of around 1.4 at 430 K—has been achieved in Cu0.005Bi0.5Sb1.495Te3, which is 70% higher than the Bi0.5Sb1.5Te3 matrix.

12 CFR 308.15 - Opportunity for informal settlement.

Science.gov (United States)

2010-01-01

... 12 Banks and Banking 4 2010-01-01 2010-01-01 false Opportunity for informal settlement. 308.15 Section 308.15 Banks and Banking FEDERAL DEPOSIT INSURANCE CORPORATION PROCEDURE AND RULES OF PRACTICE RULES OF PRACTICE AND PROCEDURE Uniform Rules of Practice and Procedure § 308.15 Opportunity for informal settlement. Any respondent may, at any time...

Endectocide activity of a pour-on formulation containing 1.5 per cent ivermectin +0.5 per cent abamectin in cattle.

Science.gov (United States)

Silva, Heloisa Cristina; Prette, Nancy; Lopes, Welber Daniel Zanetti; Sakamoto, Cláudio Alessandro M; Buzzulini, Carolina; Dos Santos, Thais Rabelo; Cruz, Breno Cayeiro; Teixeira, Weslen F Pires; Felippelli, Gustavo; Carvalho, Rafael Silveira; Maciel, Willian Giquelin; Soares, Vando Edésio; da Costa, Alvimar José

2015-01-01

The present work aimed to evaluate, through ten different studies, the therapeutic efficacy of a new pour-on formulation, containing 1.5 per cent ivermectin +0.5 per cent abamectin, against parasites of cattle. Results obtained on trials against Rhipicephalus (Boophilus) microplus showed that the pour-on combination of 1.5 per cent ivermectin +0.5 per cent abamectin obtained superior efficacy indexes against this ectoparasite, when compared with formulations containing 0.5 per cent ivermectin, 1 per cent ivermectin and the combination of 1 per cent abamectin +20 per cent levamisole. The results of efficacy of the ivermectin+abamectin and the 0.5 per cent ivermectin against Haematobia irritans were similar. Against Cochliomyia hominivorax larvae, all pour-on formulations tested (1.5 per cent ivermectin +0.5 per cent abamectin, 0.5 per cent ivermectin and 0.5 per cent abamectin), as well as 1 per cent doramectin administered subcutaneously, were considered ineffective. Cattle medicated with 1.5 per cent ivermectin +0.5 per cent abamectin, pour-on, remained free from parasitism by Dermatobia hominis larvae during 42 days (96 per cent efficacy), while values superior to 90 per cent were obtained by 0.5 per cent ivermectin (92 per cent) and 0.5 per cent abamectin (93 per cent) until the 42nd and 35th days post treatment, respectively. Against Haemonchus placei and Oesophagostomum radiatum, the pour-on of ivermectin+abamectin showed better efficacy than the 0.5 per cent ivermectin and 0.5 per cent abamectin. As to Cooperia punctata, there was no difference regarding efficacy results obtained by the avermectins combination and abamectin. The pour-on combination of 1.5 per cent ivermectin +0.5 per cent abamectin obtained high efficacy against R. (B.) microplus, D. hominis and some species of cattle gastrointestinal helminths when compared with formulations of 0.5 per cent ivermectin and 0.5 per cent abamectin administered through the same route.

Physicochemical, sensory attributes and protein profile by SDS-PAGE of beef sausage substituted with texturized vegetable protein

Directory of Open Access Journals (Sweden)

Hidayat, B.T.,

2017-08-01

Full Text Available The effect of texturized vegetable protein (TVP on the quality of beef sausages was investigated in this research. Several formulations which replaced by beef meat with TVP ranging from 10-20% w/w were investigated for their physical, chemical, sensory properties and also protein profile by SDS-PAGE. The addition of TVP concentration significantly influences physicochemical characteristics e.g. water, fat content, the color parameter (L and b value, WHC, Texture (Hardness and cooking yield (P<0.05. The protein profile also influenced by the addition of TVP in beef sausage formula. Higher substitution of meat with TVP will increase the water and will decrease fat content significantly (P<0.05. The highest water content is 40% TVP (64.02 ± 1.15% where the lowest water content is control (61.29 ± 1.88%. The highest fat content is control (12.16 ± 1.87% where the highest fat content is (8.53 ± 2.09%. For the physicochemical properties, e.g. L* and b* value, WHC and Cooking yield will increase during the substitution of meat with TVP in sausage products (P<0.05. The hardness will decrease during the substitution of meat with TVP in sausage products (P<0.05. Sensory results indicated that sensory attributed of beef sausage showed good acceptance until 30% of TVP substitution.

15 CFR 12.4 - Report to the Congress.

Science.gov (United States)

2010-01-01

... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Report to the Congress. 12.4 Section....4 Report to the Congress. Whenever the Secretary publishes a final determination under § 12.3(b)(4) or § 12.3(c)(5), he shall promptly report such determination to the Congress with a statement of the...

New antiferromagnetic semiconductor CuCr1.5Sb0.5S4

International Nuclear Information System (INIS)

Kesler, Ya.A.; Koroleva, L.I.; Mikheev, M.G.; Odintsov, A.G.; Filimonov, D.S.

1993-01-01

New halcogenide compound with spinel-antiferromagnetic semiconductor CuCr 1.5 Sb 0.5 S 4 are obtained and studied for the first time. Magnetic properties of this compound, namely, magnetization linear dependence, maximum on PHI(T) curve in the low-temperature area and realization of the Curie-Weis law for paramagnetic susceptibility with negative paramagnetic temperature testiby to the fact that this compound is antiferromagnetic

Particle morphology and magnetic properties of Ba{sub 0.5}Sr{sub 0.5}Fe{sub 12}O{sub 19} powder calcined conventionally and by microwave heating

Energy Technology Data Exchange (ETDEWEB)

Kanagesan, S., E-mail: kanagu1980@gmail.com [Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang 43400, Selangor (Malaysia); Hashim, M. [Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang 43400, Selangor (Malaysia); Physics Department, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor (Malaysia); Jesurani, S. [Department of Physics, Jeyaraj Annapackium College for Women, Periyakulam 625601, Tamil Nadu (India); Kalaivani, T. [Center for material science and Nano Devices, Department of Physics, SRM University, Kattankulathur 603203, Tamil Nadu (India); Ismail, I.; Shafie, M.S.E. [Materials Synthesis and Characterization Laboratory (MSCL), Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Serdang 43400, Selangor (Malaysia)

2012-12-05

Highlights: Black-Right-Pointing-Pointer Synthesis of Ba{sub 0.5}Sr{sub 0.5}Fe{sub 12}O{sub 19} by sol-gel technique. Black-Right-Pointing-Pointer Crystallization temperature is reduced to 900 Degree-Sign C due to the addition of D-Fructose. Black-Right-Pointing-Pointer Results of conventional and microwave calcined samples are reported. - Abstract: Barium strontium hexaferrite (Ba{sub 0.5}Sr{sub 0.5}Fe{sub 12}O{sub 19}-BSF) has been prepared by sol-gel process involving use of D-Fructose as a fuel. The prepared precursor was calcined in two different calcinations techniques conventional and microwave furnace. X-ray powder diffraction studies confirmed the formation of single phase Ba{sub 0.5}Sr{sub 0.5}Fe{sub 12}O{sub 19}. HR-SEM results show the morphology of the particles is hexagonal structures in platelet form. The average particle size of conventionally calcined BSF powder is 100-250 nm and that of microwave calcined powder is 30-100 nm. The broad hysteresis loop reveals that powder is well crystallized and exhibits hard magnetic properties.

Systematic analysis of rat 12/15-lipoxygenase enzymes reveals critical role for spinal eLOX3 hepoxilin synthase activity in inflammatory hyperalgesia.

Science.gov (United States)

Gregus, Ann M; Dumlao, Darren S; Wei, Spencer C; Norris, Paul C; Catella, Laura C; Meyerstein, Flore G; Buczynski, Matthew W; Steinauer, Joanne J; Fitzsimmons, Bethany L; Yaksh, Tony L; Dennis, Edward A

2013-05-01

Previously, we observed significant increases in spinal 12-lipoxygenase (LOX) metabolites, in particular, hepoxilins, which contribute to peripheral inflammation-induced tactile allodynia. However, the enzymatic sources of hepoxilin synthase (HXS) activity in rats remain elusive. Therefore, we overexpressed each of the 6 rat 12/15-LOX enzymes in HEK-293T cells and measured by LC-MS/MS the formation of HXB3, 12-HETE, 8-HETE, and 15-HETE from arachidonic acid (AA) at baseline and in the presence of LOX inhibitors (NDGA, AA-861, CDC, baicalein, and PD146176) vs. vehicle-treated and mock-transfected controls. We detected the following primary intrinsic activities: 12-LOX (Alox12, Alox15), 15-LOX (Alox15b), and HXS (Alox12, Alox15). Similar to human and mouse orthologs, proteins encoded by rat Alox12b and Alox12e possessed minimal 12-LOX activity with AA as substrate, while eLOX3 (encoded by Aloxe3) exhibited HXS without 12-LOX activity when coexpressed with Alox12b or supplemented with 12-HpETE. CDC potently inhibited HXS and 12-LOX activity in vitro (relative IC50s: CDC, ~0.5 and 0.8 μM, respectively) and carrageenan-evoked tactile allodynia in vivo. Notably, peripheral inflammation significantly increased spinal eLOX3; intrathecal pretreatment with either siRNA targeting Aloxe3 or an eLOX3-selective antibody attenuated the associated allodynia. These findings implicate spinal eLOX3-mediated hepoxilin synthesis in inflammatory hyperesthesia and underscore the importance of developing more selective 12-LOX/HXS inhibitors.

Nanocasting of mesoporous LiNi{sub 0.5}Mn{sub 1.5}O{sub 4-δ}. Synthesis, formation mechanism and impact of the host material; Mesoporoeses LiNi{sub 0.5}Mn{sub 1.5}O{sub 4-δ} durch Nanocasting. Darstellung, Bildungsmechanismus und Einfluss der Strukturmatrix

Energy Technology Data Exchange (ETDEWEB)

Vijn, Annalena

2015-11-27

LiNi{sub 0.5}Mn{sub 1.5}O{sub 4-δ} is one of the most attractive active materials for cathodes for lithium ion batteries. As shown before the electrochemical performance of an active material can be enhanced by employing nanostructuring. The objective of this study was to synthesize mesoporous LiNi{sub 0.5}Mn{sub 1.5}O{sub 4-δ} via hard-template materials and to investigate the impact of the confined pore space on the formation of LiNi{sub 0.5}Mn{sub 1.5}O{sub 4-δ}, as well as the impact of the template material (silica and carbon). [German] LiNi{sub 0.5}Mn{sub 1.5}O{sub 4-δ} stellt eines der vielversprechendsten Aktivmaterialien fuer die Kathoden von Lithium-Ionen-Batterien dar. Wie bereits gezeigt wurde, kann die Nanostrukturierung des Aktivmaterials einer Elektrode zu einer Verbesserung der elektrochemischen Eigenschaften fuehren. Ziel dieser Arbeit war es, mesoporoeses LiNi{sub 0.5}Mn{sub 1.5}O{sub 4-δ} darzustellen und den Einfluss des beengten Raumes der Mesoporen und der Templatmaterialien Silica und Kohlenstoff auf die Bildung von LiNi{sub 0.5}Mn{sub 1.5}O{sub 4-δ} zu untersuchen.

12 CFR 541.15 - Improved nonresidential real estate.

Science.gov (United States)

2010-01-01

... 12 Banks and Banking 5 2010-01-01 2010-01-01 false Improved nonresidential real estate. 541.15... REGULATIONS AFFECTING FEDERAL SAVINGS ASSOCIATIONS § 541.15 Improved nonresidential real estate. The term improved nonresidential real estate means nonresidential real estate: (a) Containing a permanent structure...

15 CFR 325.12 - Returning the applicant's documents.

Science.gov (United States)

2010-01-01

... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Returning the applicant's documents. 325.12 Section 325.12 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE MISCELLANEOUS REGULATIONS EXPORT TRADE...

Effects of Al substitution and thermal annealing on magnetoelectric Ba0.5Sr1.5Zn2Fe12O22 investigated by the enhancement factor of 57Fe nuclear magnetic resonance.

Science.gov (United States)

Kwon, Sangil; Kang, Byeongki; Kim, Changsoo; Jo, Euna; Lee, Soonchil; Chai, Yi Sheng; Chun, Sae Hwan; Kim, Kee Hoon

2014-04-09

The magnetoelectric properties of hexaferrite Ba0.5Sr1.5Zn2Fe12O22 are significantly improved by Al substitution and thermal annealing. Measuring the enhancement factor of 57Fe NMR, we found direct microscopic evidence that the magnetic moments of the L and S blocks are rotated by a magnetic field in such a way as to increase the net magnetic moment of a magnetic unit, even after the field is removed. Al substitution makes magnetoelectric property arise easily by suppressing the easy-plane anisotropy. The effect of thermal annealing is to stabilize the multiferroic state by reducing the number of pinning sites and the electron spin fluctuation. The transverse conic structure gradually changes to the alternating longitudinal conic structure where spins fluctuate more severely.

78 FR 10195 - Changes in Flood Hazard Determinations

Science.gov (United States)

2013-02-13

..., Moscow, ID 83843. Illinois: DuPage Village of The Honorable Roselle Village Hall, http://www.starr- March 15, 2013 170216 Roselle (12-05- Gayle 31 South Prospect team.com/starr/LOMR/ 8596P). Smolinski, Street, Roselle, IL Pages/RegionV.aspx. Mayor, Village 60172. of Roselle, 31 South Prospect Street...

15 CFR 923.12 - Uses of regional benefit.

Science.gov (United States)

2010-01-01

... 15 Commerce and Foreign Trade 3 2010-01-01 2010-01-01 false Uses of regional benefit. 923.12 Section 923.12 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE OCEAN AND COASTAL RESOURCE...

X-ray absorption measurements of charge-ordered La{sub 0.5}Sr{sub 1.5}MnO{sub 4}

Energy Technology Data Exchange (ETDEWEB)

Saitoh, T.; Villella, P.M.; Dessau, D.S. [Univ. of Colorado, Boulder, CO (United States)] [and others

1997-04-01

Perovskite and {open_quotes}layered perovskite{close_quotes}-type manganese oxides show a variety of electronic and magnetic properties such as the colossal magnetoresistance (CMR) or the charge ordering. Among them, La{sub 0.5}Sr{sub 1.5}MnO{sub 4} (K{sub 2}NiF{sub 4} structure) which has 0.5 holes per Mn site (d{sup 3.5}) shows the charge-order transition at {approximately}220 K below which Mn{sup 3+} and Mn{sup 4+} sites are believed to order in the CE-type. Although the charge ordering phenomenon has also been observed in the perovskite manganites Pr{sub 0.5}Sr{sub 1.5}MnO{sub 3} or Pr{sub 0.5}Ca{sub 1.5}MnO{sub 3}, the present system has another advantage that it has a layered structure. This enables the authors to address the issue of the orbital symmetry which should be directly related to the charge ordering. In this report, they present the results of x-ray absorption spectroscopy (XAS) on La{sub 0.5}Sr{sub 1.5}MnO{sub 4}, for two polarization angles and two (above and below the transition temperature T{sub CO}) temperatures.

Peculiarities of welding procedure for the 05Kh12K14N5M5T-VD maraging stainless steel with strength higher 1500 MPa

International Nuclear Information System (INIS)

Pustovit, A.I.

1980-01-01

The effect of welding procedure of 05Kh12K14N5M5T-VD stainless steel on the properties of its welded joints is investigated. A new procedure of welding for pressure vessels made of this steel using Sv-03Kh15K14N5M3T-EL welding wire is suggested [ru

A novel role for 12/15-lipoxygenase in regulating autophagy

Directory of Open Access Journals (Sweden)

Alwena H. Morgan

2015-04-01

Full Text Available 12/15-Lipoxygenase (LOX enzymatically generates oxidized phospholipids in monocytes and macrophages. Herein, we show that cells deficient in 12/15-LOX contain defective mitochondria and numerous cytoplasmic vacuoles containing electron dense material, indicating defects in autophagy or membrane processing, However, both LC3 expression and lipidation were normal both basally and on chloroquine treatment. A LOX-derived oxidized phospholipid, 12-hydroxyeicosatetraenoic acid-phosphatidylethanolamine (12-HETE-PE was found to be a preferred substrate for yeast Atg8 lipidation, versus native PE, while both native and oxidized PE were effective substrates for LC3 lipidation. Last, phospholipidomics demonstrated altered levels of several phospholipid classes. Thus, we show that oxidized phospholipids generated by 12/15-LOX can act as substrates for key proteins required for effective autophagy and that cells deficient in this enzyme show evidence of autophagic dysfunction. The data functionally link phospholipid oxidation with autophagy for the first time.

Volumetric Behavior of Sodium Saccharin in Water and (0.1, 0.3, and 0.5 m Fructose at (298.15, 303.15, 308.15, and 313.15 K

Directory of Open Access Journals (Sweden)

Sanjeevan J. Kharat

2017-04-01

Full Text Available In order to get the information regarding the sweetener-water and sweetener-sweetener interactions, densities of sodium saccharin in water and (0.1, 0.3, and 0.5 m fructose have been measured at (298.15, 303.15, 308.15, and 313.15 K by the use of bicapillary pycnometer. From density values, partial molar volumes, expansion coefficient, Hepler’s constant, apparent specific volumes, partial molar volumes of transfer, doublet and triplet interaction coefficients have been calculated. From density study, it has been concluded that strong water-sodium saccharin interactions exist. Sodium saccharin is water structure maker. Strong interactions exist between sodium saccharin and fructose. In presence of fructose, the interactions exist between hydrophilic group (–OH, C=O, and –O– of fructose and sodium ion of sodium saccharin in aqueous solutions of sodium saccharin. All investigated solutions exhibit sweet taste. DOI: http://dx.doi.org/10.17807/orbital.v9i1.921 

Microstructure and magnetocaloric effect in cast LaFe11.5Si1.5Bx (x=0.5, 1.0)

International Nuclear Information System (INIS)

Zhang, H.; Long, Y.; Cao, Q.; Mudryk, Ya.; Zou, M.; Gschneidner, K.A.; Pecharsky, V.K.

2010-01-01

Phase formation, structure, and the magnetocaloric effect (MCE) in as-cast LaFe 11.5 Si 1.5 B x (x=0.5, 1.0) compounds have been studied. The Curie temperatures, T C , are ∼211 and 230 K for x=0.5 and 1.0, respectively, which are higher than that of annealed LaFe 11.5 Si 1.5 (T C =183 K), while the maximum magnetic entropy changes at the respective T C under a magnetic field change of 0-5 T are 7.8 and 5.8 J/(kg K). Wavelength dispersive spectrometry (WDS) analysis shows that only a small fraction of boron atoms is dissolved in the NaZn 13 -type structure phase, and that the compositions of the as-cast LaFe 11.5 Si 1.5 B x (x=0.5, 1.0) alloys are much different from the intended nominal compositions. These as-cast alloys exhibit second-order magnetic phase transitions and low MCEs. However, based on the relative cooling power, the as-cast LaFe 11.5 Si 1.5 B x alloys are promising candidates for magnetic refrigerants over a wide temperature range.

Magnetoelectric effect of (1-x) Ba0.5Sr0.5Zr0.5Ti0.5O3+(x) Ni0.12Mg0.18Cu0.2Zn0.5Fe2O4 composites

Science.gov (United States)

Rahaman, Md. D.; Saha, S. K.; Ahmed, T. N.; Saha, D. K.; Hossain, A. K. M. Akther

2014-12-01

The magnetoelectric composites with chemical compositions (1-x) Ba0.5Sr0.5Zr0.5Ti0.5O3+(x) Ni0.12Mg0.18Cu0.2Zn0.5Fe2O4 (x=20, 40, 60 and 80 wt%) was prepared by the conventional solid state reaction method. The presence of a biphase composition was confirmed by X-ray diffraction while the microstructure of the composites was studied by scanning electron microscopy revealing a good mixing of the two phases and a good densification of the bulk ceramics. The dielectric dispersion is observed at lower frequencies due to interfacial polarization arising from the interface of the two phases. At higher frequencies, the dielectric constant is almost constant due to the inability of electric dipoles to follow the first variation of the alternating applied electric field. The dielectric loss shows maxima which are attributed when the hopping frequency of electrons between different ionic sites becomes nearly equal to the frequency of the applied field. The linearity in the log(σAC) vs. log(ω2) plots confirmed the small polaron hopping type of conduction mechanism. The composite materials are found to exhibit an excellent frequency dependence of magnetic properties. In the high frequency range, with increasing ferrite concentration the initial permeability increases and cut-off frequency decreases. An optimal magnetoelectric coupling responding voltage of about 600 μV cm-1 Oe-1 is obtained for x=20 wt% at room temperature.

Budding yeast cDNA sequencing project: S03036-05_I15 [Budding yeast cDNA sequencing project

Lifescience Database Archive (English)

Full Text Available EST - Link to UCSC Genome Browser - Sequence >S03036-05_I15.phd NNNTNNTNNNNCNCTCACATANAAGACGGANNAGNNNGCTGGGC...CAATGCGTTCCATATGCG AAAATTCTTGGNCAATGTATTCTCTAGCAATCTNTNCTTTTGTACANTCGGAGGNTTNTC ATGNTCCTTTCATANATTATANAAANNG

Pelvimetry and patient acceptability compared between open 0.5-T and closed 1.5-T MR systems

International Nuclear Information System (INIS)

Michel, Sven C.A.; Treiber, Karl; Marincek, Borut; Kubik-Huch, Rahel A.; Rake, Annett; Chaoui, Rabih; Keller, Thomas M.; Goetzmann, Lutz; Seifert, Burkhardt; Ferrazzini, Mattia

2002-01-01

Our objective was to compare maternal pelvimetry and patient acceptability between open low-field (0.5-T) and closed 1.5-T MR systems. Thirty women referred for pelvimetry (pregnant: n=15) were scanned twice in the supine position, once in the vertical open system and once in the closed system. Each patient completed a comfort and acceptability questionnaire. Pelvimetric and questionnaire data were compared between systems. Total scan time was double in the open system (7:52±1:47 vs 3:12±1:20 min). Poor image quality in the open system prevented assessment of interspinous and intertuberous diameters in one woman and all measurements in another, both pregnant, with abdominal circumferences >120 cm. The open system was much more acceptable in terms of claustrophobia and confinement (both p<0.01). Claustrophobia interrupted one closed examination. Thirty-three percent of pregnant women in both systems reported fear of fetal harm. Sixty percent of all women preferred the open system, 7% the closed system, and 33% had no preference. Limits of agreement of 3-5% from the mean for all diameters confirmed good pelvimetric reproducibility. Women's preference for open-system MR pelvimetry is feasible with abdominal circumferences ≤120 cm. (orig.)

Pelvimetry and patient acceptability compared between open 0.5-T and closed 1.5-T MR systems

Energy Technology Data Exchange (ETDEWEB)

Michel, Sven C.A.; Treiber, Karl; Marincek, Borut; Kubik-Huch, Rahel A. [Institute of Diagnostic Radiology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich (Switzerland); Rake, Annett; Chaoui, Rabih; Keller, Thomas M. [Department of Obstetrics, University Hospital Zurich, Raemistrasse 100, 8091 Zurich (Switzerland); Goetzmann, Lutz [Institute of Psychosocial Medicine, University Hospital Zurich, Raemistrasse 100, 8091 Zurich (Switzerland); Seifert, Burkhardt [Department of Biostatistics, University Hospital Zurich, Sumatrastrasse 30, 8006 Zurich (Switzerland); Department of Biostatistics, University Hospital Zurich, Sumatrastrasse 30, 8006 Zurich (Switzerland); Ferrazzini, Mattia [Department of Otorhinolaryngology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich (Switzerland)

2002-12-01

Our objective was to compare maternal pelvimetry and patient acceptability between open low-field (0.5-T) and closed 1.5-T MR systems. Thirty women referred for pelvimetry (pregnant: n=15) were scanned twice in the supine position, once in the vertical open system and once in the closed system. Each patient completed a comfort and acceptability questionnaire. Pelvimetric and questionnaire data were compared between systems. Total scan time was double in the open system (7:52{+-}1:47 vs 3:12{+-}1:20 min). Poor image quality in the open system prevented assessment of interspinous and intertuberous diameters in one woman and all measurements in another, both pregnant, with abdominal circumferences >120 cm. The open system was much more acceptable in terms of claustrophobia and confinement (both p<0.01). Claustrophobia interrupted one closed examination. Thirty-three percent of pregnant women in both systems reported fear of fetal harm. Sixty percent of all women preferred the open system, 7% the closed system, and 33% had no preference. Limits of agreement of 3-5% from the mean for all diameters confirmed good pelvimetric reproducibility. Women's preference for open-system MR pelvimetry is feasible with abdominal circumferences {<=}120 cm. (orig.)

Quasi Path Restoration: A post-failure recovery scheme over pre-allocated backup resource for elastic optical networks

Science.gov (United States)

Yadav, Dharmendra Singh; Babu, Sarath; Manoj, B. S.

2018-03-01

Spectrum conflict during primary and backup routes assignment in elastic optical networks results in increased resource consumption as well as high Bandwidth Blocking Probability. In order to avoid such conflicts, we propose a new scheme, Quasi Path Restoration (QPR), where we divide the available spectrum into two: (1) primary spectrum (for primary routes allocation) and (2) backup spectrum (for rerouting the data on link failures). QPR exhibits three advantages over existing survivable strategies such as Shared Path Protection (SPP), Primary First Fit Backup Last Fit (PFFBLF), Jointly Releasing and re-establishment Defragmentation SPP (JRDSSPP), and Path Restoration (PR): (1) the conflict between primary and backup spectrum during route assignment is completely eliminated, (2) upon a link failure, connection recovery requires less backup resources compared to SPP, PFFBLF, and PR, and (3) availability of the same backup spectrum on each link improves the recovery guarantee. The performance of our scheme is analyzed with different primary backup spectrum partitions on varying connection-request demands and number of frequency slots. Our results show that QPR provides better connection recovery guarantee and Backup Resources Utilization (BRU) compared to bandwidth recovery of PR strategy. In addition, we compare QPR with Shared Path Protection and Primary First-Fit Backup Last Fit strategies in terms of Bandwidth Blocking Probability (BBP) and average frequency slots per connection request. Simulation results show that BBP of SPP, PFFBLF, and JRDSPP varies between 18.59% and 14.42%, while in QPR, BBP ranges from 2.55% to 17.76% for Cost239, NSFNET, and ARPANET topologies. Also, QPR provides bandwidth recovery between 93.61% and 100%, while in PR, the recovery ranges from 86.81% to 98.99%. It is evident from our analysis that QPR provides a reasonable trade-off between bandwidth blocking probability and connection recoverability.

Age differences in search of web pages: the effects of link size, link number, and clutter.

Science.gov (United States)

Grahame, Michael; Laberge, Jason; Scialfa, Charles T

2004-01-01

Reaction time, eye movements, and errors were measured during visual search of Web pages to determine age-related differences in performance as a function of link size, link number, link location, and clutter. Participants (15 young adults, M = 23 years; 14 older adults, M = 57 years) searched Web pages for target links that varied from trial to trial. During one half of the trials, links were enlarged from 10-point to 12-point font. Target location was distributed among the left, center, and bottom portions of the screen. Clutter was manipulated according to the percentage of used space, including graphics and text, and the number of potentially distracting nontarget links was varied. Increased link size improved performance, whereas increased clutter and links hampered search, especially for older adults. Results also showed that links located in the left region of the page were found most easily. Actual or potential applications of this research include Web site design to increase usability, particularly for older adults.

The effect of molybdenum on the corrosion behaviour of the high-entropy alloys Co1.5CrFeNi1.5Ti0.5Mox in aqueous environments

International Nuclear Information System (INIS)

Chou, Y.L.; Yeh, J.W.; Shih, H.C.

2010-01-01

The purpose of this study is to investigate the electrochemical properties of the Co 1.5 CrFeNi 1.5 Ti 0.5 Mo x high-entropy alloys in three aqueous environments which simulate acidic, marine, and basic environments at ambient temperature (∼25 o C). The potentiodynamic polarisation curves of the Co 1.5 CrFeNi 1.5 Ti 0.5 Mo x alloys, obtained in aqueous solutions of H 2 SO 4 and NaOH, clearly revealed that the corrosion resistance of the Mo-free alloy was superior to that of the Mo-containing alloys. On the other hand, the lack of hysteresis in cyclic polarisation tests and SEM micrographs confirmed that the Mo-containing alloys are not susceptible to pitting corrosion in NaCl solution.

Study on Dy0.45Ba0.05Sr0.5Co0.8Fe0.2O3-δ-Ce0.85Gd0.15O1.95 composite cathode material for intermediate temperature solid oxide fuel cell

Science.gov (United States)

Kautkar, Pranay R.; Acharya, Smita A.

2018-05-01

xDy0.45Ba0.05Sr0.5Co0.8Fe0.2O3-δ - xCe0.85Gd0.15O1.95 (x = 50 %) composite cathode supported on Ce0.85Gd0.15O1.95 (GDC15) electrolyte are studied for applications in IT-SOFCs. Results attribute that Dy0.45Ba0.05Sr0.5Co0.8Fe0.2O3-δ material is chemically compatible with Ce0.85Gd0.15O1.95 (GDC15). Rietveld refined X-ray diffraction patterns notify orthorhombic (space group:Pbnm) symmetry for Dy0.45 Ba0.05Sr0.5Co0.8Fe0.2O3-δ and fluorite type structure (space group: Fm-3m) symmetry for GDC15. The polarization resistance (Rp) of composite cathode reduces to the minimum value of 1.35 Ω cm2 at 650 °C in air. Area specific resistance (ASR) of composite cathode has found 0.67 Ω.cm2 at 650°C respectively. Result shows that the surface diffusion of the dissociative adsorbed oxygen at electrode/electrolyte interface on the composite cathode.

Experimental acute intracerebral hemorrhage: Value of MR sequences for a safe diagnosis at 1.5 and 0.5 T

International Nuclear Information System (INIS)

Kueker, W.; Thron, A.; Thiex, R.; Rohde, I.; Rohde, V.

2000-01-01

To determine the detectability of intracerebral hematomas with MR imaging at 1.5 T and 0.5 T with fluid attenuated inversion recovery turbo spin-echo (FLAIR) and gradient-echo sequences. Material and Methods: Twenty-seven intracerebral hematomas were created in 25 piglets by injection of venous blood into the brain through a burr hole. All were imaged with T2*-weighted gradient echo sequences (fast field echo, FFE), T2-weighted fluid attenuated inversion recovery turbo spin-echo sequences (FLAIR), T2-weighted turbo spin-echo (TSE) and T1-weighted spin-echo sequences. Follow-up was performed on the 2nd, 4th and 10th postoperative days. Ten animals were additionally investigated with similar sequences at 0.5 T. Histologic correlation was obtained in all cases. Results: T2* FFE sequences detected all acute intracerebral hematomas and demonstrated the size correctly at 1.5 T and 0.5 T. The conspicuity was better at 1.5 T. FLAIR sequences were unreliable in the hyperacute phase at 1.5 T. However, subarachnoid and intraventricular extension was best appreciated with FLAIR images. T2 TSE images were incapable of detecting para ventricular and subarachnoid hemorrhages, but clearly demonstrated intracerebral blood in other locations. T1-weighted images were insensitive to hemorrhage in the acute state but very useful in subacute and chronic hematomas. Conclusion: The safe and reliable diagnosis of intracerebral hemorrhage is probably possible with MR imaging at 1.5 T and 0.5 T even of hematomas less than 90 min old, but requires the application of at least FLAIR, T2* FFE and T1 sequences and is therefore time consuming

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High performance Bi0.5Na0.5TiO3-BiAlO3-K0.5Na0.5NbO3 lead-free pyroelectric ceramics for thermal detectors

Science.gov (United States)

Liu, Zhen; Ren, Weijun; Peng, Ping; Guo, Shaobo; Lu, Teng; Liu, Yun; Dong, Xianlin; Wang, Genshui

2018-04-01

Both high pyroelectric properties and good temperature stability of ferroelectric materials are desirable when used for applications in infrared thermal detectors. In this work, we report lead-free ternary 0.97(0.99Bi0.5Na0.5TiO3-0.01BiAlO3)-0.03K0.5Na0.5NbO3 (BNT-BA-KNN) ceramics, which not only exhibits a large pyroelectric coefficient (p ˜ 3.7 × 10-8 C cm-2 K-1) and figures of merit (Fi, Fv, and Fd) but also shows excellent thermal stable properties. At room temperature, Fi, Fv, and Fd are determined as high as 1.32 × 10-10 m/V, 2.89 × 10-2 m2/C, and 1.15 × 10-5 Pa-1/2 at 1 kHz and 1.32 × 10-10 m/V, 2.70 × 10-2 m2/C, and 1.09 × 10-5 Pa-1/2 at 20 Hz, respectively. During the temperature range of RT to 85 °C, the achieved p, Fi, Fv, and Fd do not vary too much. The high depolarization temperature and the undispersed ferroelectric-ergodic relaxor phase transition with a sharp pyroelectric coefficient peak value of ˜400 × 10-8 C cm-2 K-1 are suggested to be responsible for this thermal stability, which ensures reliable actual operation. The results reveal the BNT-BA-KNN ceramics as promising lead-free candidates for infrared thermal detector applications.

The crystal structure of the mixed-layer Aurivillius phase Bi 5Ti 1.5W 1.5O 15

Science.gov (United States)

Tellier, J.; Boullay, Ph.; Créon, N.; Mercurio, D.

2005-09-01

The crystal structure of the 1+2 mixed-layer Aurivillius phase Bi 5Ti 1.5W 1.5O 15 (SG I2cm n o 46: -cba, Z=4, a=5.4092(3) Å, b=5.3843(3) Å and c=41.529(3) Å) consisting of the ordered intergrowth of one and two octahedra thick perovskite-type blocks separated by [Bi 2O 2] 2+ slabs is reported. Supported by an electron diffraction investigation and, using the Rietveld analysis, it is shown that this compound should be described using a I-centering lattice in agreement with the generalised structural model of the Aurivillius type compounds recently presented by the authors. The structure of this Bi 5Ti 1.5W 1.5O 15 phase is analyzed in comparison with the related simple members (Bi 2WO 6 and Bi 3Ti 1.5W 0.5O 9). The crystal structure of Bi 3Ti 1.5W 0.5O 9 is also reported.

15 CFR 296.12 - Reporting and auditing requirements.

Science.gov (United States)

2010-01-01

... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Reporting and auditing requirements... INNOVATION PROGRAM General § 296.12 Reporting and auditing requirements. Each award by the Program shall contain procedures regarding technical, business, and financial reporting and auditing requirements to...

Magnetic impurity effect on charge and magnetic order in doped La1.5Ca0.5CoO4

Science.gov (United States)

Horigane, K.; Hiraka, H.; Tomiyasu, K.; Ohoyama, K.; Louca, D.; Yamada, K.

2012-02-01

Neutron scattering experiments were performed on single crystals of magnetic impurity doped cobalt oxides La1.5Ca0.5CoO4 to characterize the charge and spin orders. We newly found contrasting impurity effects. Two types of magnetic peaks are observed at q = (0.5,0,L) with L = half-integer and integer in La1.5Ca0.5CoO4, while magnetic peak at L = half-integer (integer) was only observed in Mn (Fe)-substituted sample. Although Mn and Fe impurities degrade charge and magnetic order, Cr impurity stabilizes the ordering at x = 0.5. Based on the crystal structural analysis of Cr doped sample, we found that the excess oxygen and change of octahedron around Co3+ were realized in Cr doped sample.

44 CFR 15.12 - Photographs and other depictions.

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2010-10-01

... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Photographs and other... NATIONAL EMERGENCY TRAINING CENTER § 15.12 Photographs and other depictions. (a) Photographs and other depictions at Mt. Weather. We prohibit taking photographs and making notes, sketches, or diagrams of...

Effect of curcumin Extract on Ttranslocation of Glut 4 in C2C12 Myotubes

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J Zavarreza

2013-06-01

Full Text Available Introduction: Curcumin is a major phenolic compound of Curcuma longa, which has long been used in traditional Indian medicine. Recently, curcumin has been reported to have antihyperglycemic activity in animal models. However, the molecular basis of this action has not been adequatedly described. In the present study the antihyperglycemic effect of curcumin was examined using C2C12 myoblast cells. Methods: The effects of curcumin were investigated in C2C12 myotubes by treating the cells with 40 µM of curcumin for 1.5 h. C2C12 myotubes were homogenized and the subcellular fractionation was prepared using ultracentrifugation; Then protein assay was performed using Bradford method and Glut4 determination was done using SDS-PAGE. Moreover, western immunoblotting techniques were exerted for semi-quantitative measurement. Data analysis was performed via gene tools software of Gel documentation and SPSS. An ANOVA test was used to compare three groups together. Results: Comparison of Glut4 levels in C2C12 myotubes showed that myotubes which were exposed to1.5 hours of 40 µM curcunin had higher Glut4 percentages in both cytosolic and membrane fractions and Glut4 percentages were significant with a confidence interval (CI of 95% ( P<0.05 . Conclusion: The study results showed that curcumin can strongly induce the increase of Glut4 translocation in differentiated C2C12 cells, indicating its possible regulatory role in the glucose metabolism of skeletal muscle cells

Page: a program for gamma spectra analysis in PC microcomputers

International Nuclear Information System (INIS)

Goncalves, M.A.; Yamaura, M.; Costa, G.J.C.; Carvalho, E.I. de; Matsuda, H.T.; Araujo, B.F. de.

1991-04-01

PAGE is a software package, written in BASIC language, to perform gamma spectra analysis. It was developed to be used in a high-purity intrinsic germanium detector-multichannel analyser-PC microcomputer system. The analysis program of PAGE package accomplishes functions as follows: peak location; gamma nuclides identification; activity determination. Standard nuclides sources were used to calibrate the system. To perform the efficiency x energy calibration a logarithmic fit was applied. Analysis of nuclides with overlapping peaks is allowed by PAGE program. PAGE has additional auxiliary programs for: building and list of isotopic nuclear data libraries; data acquisition from multichannel analyser; spectrum display with automatic area and FWHM determinations. This software is to be applied in analytical process control where time response is a very important parameter. PAGE takes ca. 1.5 minutes to analyse a complex spectrum from a 4096 channels MCA. (author)

Enhancing pitting corrosion resistance of AlxCrFe1.5MnNi0.5 high-entropy alloys by anodic treatment in sulfuric acid

International Nuclear Information System (INIS)

Lee, C.P.; Chen, Y.Y.; Hsu, C.Y.; Yeh, J.W.; Shih, H.C.

2008-01-01

High-entropy alloys are a newly developed family of multi-component alloys that comprise various major alloying elements. Each element in the alloy system is present in between 5 and 35 at.%. The crystal structures and physical properties of high-entropy alloys differ completely from those of conventional alloys. The electrochemical impedance spectra (EIS) of the Al x CrFe 1.5 MnNi 0.5 (x = 0, 0.3, 0.5) alloys, obtained in 0.1 M HCl solution, clearly revealed that the corrosion resistance values were determined to increase from 21 to 34 Ωcm 2 as the aluminum content increased from 0 to 0.5 mol, and were markedly lower than that of 304 stainless steel (243 Ωcm 2 ). At passive potential, the corresponding current declined with the anodizing time accounting, causing passivity by the growth of the multi-component anodized film in H 2 SO 4 solution. X-ray photoelectron spectroscopy (XPS) analyses revealed that the surface of anodized Al 0.3 CrFe 1.5 MnNi 0.5 alloy formed aluminum and chromium oxide film which was the main passivating compound on the alloy. This anodic treatment increased the corrosion resistance in the EIS measurements of the CrFe 1.5 MnNi 0.5 and Al 0.3 CrFe 1.5 MnNi 0.5 alloys by two orders of magnitude. Accordingly, the anodic treatment of the Al x CrFe 1.5 MnNi 0.5 alloys optimized their surface structures and minimized their susceptibility to pitting corrosion

Ca2Cr0.5Ga1.5O5—An extremely redox-stable brownmillerite phase

International Nuclear Information System (INIS)

Luo, Kun; Amano Patino, Midori; Hayward, Michael A.

2015-01-01

Investigation of the Ca 2 Cr x Ga 2−x O 5 compositional series reveals a maximum chromium solubility of 25%. The most chromium rich composition, Ca 2 Cr 0.5 Ga 1.5 O 5 , adopts a brownmillerite-type anion deficient perovskite structure described in space group Pnma (a=5.368 Å, b=14.547 Å, c=5.593 Å). Neutron powder diffraction data reveals rigorous B-site cation order, with all of the tetrahedral coordination sites occupied exclusively by gallium and the octahedral coordination sites occupied by gallium or chromium. Annealing studies reveals Ca 2 Cr 0.5 Ga 1.5 O 5 is stable in both oxidizing (100% O 2 ) and reducing (5% H 2 in N 2 ) conditions up to 800 °C, suggesting it could find application as a stable host lattice for fuel cell electrodes or electrolytes with suitable doping to enhance catalytic behaviour and/or anionic conductivity. - Graphical abstract: Ca 2 Cr 0.5 Ga 1.5 O 5 , adopts a brownmillerite-type anion deficient perovskite structure yet it is stable in both oxidizing (100% O 2 ) and reducing (5% H 2 in N 2 ) conditions up to 800 °C. - Highlights: • Anion deficient oxide stable to both oxidation and reduction up to 800 °C. • Cation-ordered brownmillerite structure determined by powder neutron diffraction. • Low solubility of Cr 3+ in framework due to spherical d 3 electron configuration

PAGING IN COMMUNICATIONS

DEFF Research Database (Denmark)

2016-01-01

A method and an apparatus are disclosed for managing paging in a communications system. The method may include, based on a received set of physical resources, determining, in a terminal apparatus, an original paging pattern defining potential time instants for paging, wherein the potential time...... instants for paging include a subset of a total amount of resources available at a network node for paging....

A role for 12/15 lipoxygenase in the amyloid beta precursor protein metabolism.

Science.gov (United States)

Succol, Francesca; Praticò, Domenico

2007-10-01

12/15 Lipoxygenase (12/15LO) protein levels and activity are increased in pathologically affected regions of Alzheimer's disease (AD) brains, compared with controls. Its metabolic products are elevated in cerebrospinal fluid of patients with AD and individuals with mild cognitive impairment, suggesting that this enzyme may be involved early in AD pathogenesis. Herein, we investigate the effect of pharmacologic inhibition of 12/15LO on the amyloid beta precursor protein (APP) metabolism. To this end, we used CHO and N2A cells stably expressing human APP with the Swedish mutant, and two structurally distinct and selective 12/15LO inhibitors, PD146176 and CDC. Our results demonstrated that both drugs dose-dependently reduced Abeta formation without affecting total APP levels. Interestingly, in the same cells we observed a significant reduction in secreted (s)APPbeta and beta-secretase (BACE), but not sAPPalpha and ADAM10 protein levels. Together, these data show for the first time that this enzymatic pathway influences Abeta formation whereby modulating the BACE proteolytic cascade. We conclude that specific pharmacologic inhibition of 12/15LO could represent a novel therapeutic target for treating or preventing AD pathology in humans.

Les idées qui ont changé le monde: Maurice Lacroix célèbre les grands inventeurs de notre temps (1/2 page)

CERN Multimedia

2007-01-01

Maurice Lacroix wanted to underline the research and development work by making portraits of selected personalities who managed, with their perseverance and their capacity of innovation, to push away the limits of their field of work (ex. Lyndon Evans) (1/2 page)

12/15 Lipoxygenase regulation of colorectal tumorigenesis is determined by the relative tumor levels of its metabolite 12-HETE and 13-HODE in animal models.

Science.gov (United States)

Chang, Jian; Jiang, Li; Wang, Yinqiu; Yao, Bing; Yang, Shilin; Zhang, Bixiang; Zhang, Ming-Zhi

2015-02-20

Colorectal cancer (CRC) continues to be a major cause of morbidity and mortality. The arachidonic acid (AA) pathway and linoleic acid (LA) pathway have been implicated as important contributors to CRC development and growth. Human 15-lipoxygenase 1 (15-LOX-1) converts LA to anti-tumor 13-S-hydroxyoctadecadienoic acid (13-HODE)and 15-LOX-2 converts AA to 15-hydroxyeicosatetraenoic acid (15-HETE). In addition, human 12-LOX metabolizes AA to pro-tumor 12-HETE. In rodents, the function of 12-LOX and 15-LOX-1 and 15-LOX-2 is carried out by a single enzyme, 12/15-LOX. As a result, conflicting conclusions concerning the role of 12-LOX and 15-LOX have been obtained in animal studies. In the present studies, we determined that PD146176, a selective 15-LOX-1 inhibitor, markedly suppressed 13-HODE generation in human colon cancer HCA-7 cells and HCA-7 tumors, in association with increased tumor growth. In contrast, PD146176 treatment led to decreases in 12-HETE generation in mouse colon cancer MC38 cells and MC38 tumors, in association with tumor inhibition. Surprisingly, deletion of host 12/15-LOX alone led to increased MC38 tumor growth, in association with decreased tumor 13-HODE levels, possibly due to inhibition of 12/15-LOX activity in stroma. Therefore, the effect of 12/15-LOX on colorectal tumorigenesis in mouse models could be affected by tumor cell type (human or mouse), relative 12/15 LOX activity in tumor cells and stroma as well as the relative tumor 13-HODE and 12-HETE levels.

In Situ Carbon Coated LiNi0.5Mn1.5O4 Cathode Material Prepared by Prepolymer of Melamine Formaldehyde Resin Assisted Method

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Wei Yang

2016-01-01

Full Text Available Carbon coated spinel LiNi0.5Mn1.5O4 were prepared by spray-drying using prepolymer of melamine formaldehyde resin (PMF as carbon source of carbon coating layer. The PMF carbon coated LiNi0.5Mn1.5O4 was characterized by XRD, SEM, and other electrochemical measurements. The as-prepared lithium nickel manganese oxide has the cubic face-centered spinel structure with a space group of Fd3m. It showed good electrochemical performance as a cathode material for lithium ion battery. After 100 discharge and charge cycles at 0.5 C rate, the specific discharge capacity of carbon coated LiNi0.5Mn1.5O4 was 130 mAh·g−1, and the corresponding capacity retention was 98.8%. The 100th cycle specific discharge capacity at 10 C rate of carbon coated LiNi0.5Mn1.5O4 was 105.4 mAh·g−1, and even the corresponding capacity retention was 95.2%.

Synthesis and luminescence characterization of Pr3+ doped Sr1.5Ca0.5SiO4 phosphor

Science.gov (United States)

Vidyadharan, Viji; Mani, Kamal P.; Sajna, M. S.; Joseph, Cyriac; Unnikrishnan, N. V.; Biju, P. R.

2014-12-01

Luminescence properties of Pr3+ activated Sr1.5Ca0.5SiO4 phosphors synthesized by solid state reaction method are reported in this work. Blue, orange red and red emissions were observed in the Pr3+ doped sample under 444 nm excitation and these emissions are assigned as 3P0 → 3H4, 3P0 → 3H6 and 3P0 → 3F4 transitions. The emission intensity shows a maximum corresponding to the 0.5 wt% Pr3+ ion. The decay analysis was done for 0.05 and 0.5 wt% Pr3+ doped samples for the transition 3P0 → 3H6. The life times of 0.05 and 0.5 wt% Pr3+ doped samples were calculated by fitting to exponential and non-exponential curve respectively, and are found to be 156 and 105 μs respectively. The non-exponential behaviour arises due to the statistical distribution of the distances between the ground state Pr3+ ions and excited state Pr3+ ions, which cause the inhomogeneous energy transfer rate. The XRD spectrum confirmed the triclinic phase of the prepared phosphors. The compositions of the samples were determined by the energy dispersive X-ray spectra. From the SEM images it is observed that the particles are agglomerated and are irregularly shaped. IR absorption bands were assigned to different vibrational modes. The well resolved peaks shown in the absorption spectra are identical to the excitation spectra of the phosphor samples. Pr3+ activated Sr1.5Ca0.5SiO4 phosphors can be efficiently excited with 444 nm irradiation and emit multicolour visible emissions. From the CIE diagram it can be seen that the prepared phosphor samples give yellowish-green emission.

High performance Sm{sub 0.5}Sr{sub 0.5}CoO{sub 3}-La{sub 0.8}Sr{sub 0.2}Ga{sub 0.8}Mg{sub 0.15}Co{sub 0.05}O{sub 3} composite cathodes

Energy Technology Data Exchange (ETDEWEB)

Wang, Shizhong; Zou, Yuman [College of Chemistry and Chemical Engineering, Department of Chemistry, Xiamen University, Xiamen 361005, Fujian (China)

2006-06-15

High performance Sm{sub 0.5}Sr{sub 0.5}CoO{sub 3}(SSC)-La{sub 0.8}Sr{sub 0.2}Ga{sub 0.8}Mg{sub 0.15}Co{sub 0.05}O{sub 3} (LSGMC5) composite cathodes for intermediate temperature solid oxide fuel cells (ITSOFC) were prepared and characterized. The SSC powders were synthesized using the glycine-nitrate method and La{sub 0.8}Sr{sub 0.2}Ga{sub 0.8}Mg{sub 0.15}Co{sub 0.05}O{sub 3}(LSGMC5) powders were synthesized using the citrate method. The calcining temperature for the SSC and LSGMC5 powders had strong effect on the microstructure of the composite electrode and electrode/electrolyte interface, which affected the performance of the SSC-LSGMC5 electrode strongly. The electrode based on SSC calcined at 1223K and LSGMC5 calcined at 1273K exhibited the highest performance among the electrodes studied. The electrode resistance was about 0.07{omega}cm{sup 2}, and the overpotential under 1Acm{sup -2} current density was as low as 0.077V at 973K in oxygen, which could be an ideal cathode for ITSOFC based on lanthanum gallate electrolytes. (author)

Mechanical bending strength of (Bi0.5Na0.5 TiO3-based lead-Free piezoelectric ceramics

Directory of Open Access Journals (Sweden)

Hiroaki Takahashi

2017-09-01

Full Text Available (Bi0.5Na0.5TiO3 [BNT] is expected as one of candidate lead-free materials because these ceramics show relatively good high-power piezoelectric properties. In this study, we tried to understand the bending strength and fracture behavior of the BNT-based ceramics. To measure the bending strength, a three-point bending test on the basis of JIS was conducted using 12.0 × 4.0 × 1.0 mm3 specimens. An average bending strength, σA, of pure BNT ceramics sintered at 1100 °C for 2, 12 and 24 h were 217, 195 and 187 MPa, respectively. It is cleared that the σA increased with decreasing the sintering time, (grain size and pore size. We also investigated the bending strength of Nb2O5 doped BNT ceramics [BNT-Nb x, x = 0.05 ∼ 1.5 wt%] and MnCO3 doped BNT ceramics [BNT-Mn x, x = 0.5 and 1.0 wt%]. Values of the σA of BNT-Nb 0.5 and BNT-Mn 0.5 were 222, and 188 MPa, respectively. It is clarified that soft dopants (Nb can improve the bending strength of BNT-based ceramics. Additionally, hot-pressed BNT [HP-BNT] were sintered at 1050 °C for 5 h, and the σA of HP-BNT was 245 MPa.

Preparation and Thermoelectric Properties of Graphite/Bi0.5Sb1.5Te3 Composites

Science.gov (United States)

Hu, Wenhua; Zhou, Hongyu; Mu, Xin; He, Danqi; Ji, Pengxia; Hou, Weikang; Wei, Ping; Zhu, Wanting; Nie, Xiaolei; Zhao, Wenyu

2018-06-01

Bismuth telluride zone-melting alloys are the most commercially used thermoelectric materials. However, the zone-melting ingots have weak machinability due to the strong preferred orientation. Here, non-textured graphite/Bi0.5Sb1.5Te3 (G/BST) composites were prepared by a powder metallurgy method combined with cold-pressing and annealing treatments. The composition, microstructure, and thermoelectric properties of the G/BST composites with different mass percentages of G were investigated. It was found that G addition could effectively reduce the thermal conductivity and slightly improve the electrical properties of the BST, which resulted in a large enhancement in the figure-of-merit, ZT. The largest ZT for the xG/BST composites with x = 0.05% reached 1.05 at 320 K, which is increased by 35% as compared with that of the G-free BST materials. This work provided an effective method for preparing non-textured Bi2Te3-based TE materials with a simple process, low cost, and large potential in scale production.

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15 CFR 303.12 - Issuance and use of production incentive certificates.

Science.gov (United States)

2010-01-01

... 15 Commerce and Foreign Trade 2 2010-01-01 2010-01-01 false Issuance and use of production incentive certificates. 303.12 Section 303.12 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade (Continued) INTERNATIONAL TRADE ADMINISTRATION, DEPARTMENT OF COMMERCE MISCELLANEOUS...

Oxygen permeation properties of dense Bi1.5Er0.5O3-Ag cermet membranes

NARCIS (Netherlands)

ten Elshof, Johan E.; Nguyen, N.Q.; den Otter, M.W.; Bouwmeester, Henricus J.M.

1997-01-01

Oxygen permeation experiments were performed on dense mixed-conducting ceramic-metal composite membranes (thickness 0.2 to 2 mm) Bi1.5Er0.5O3-Ag with 10.0, 27.8, and 40.0 volume percent (v/o) silver, respectively, in the temperature range 873 to 993 K and oxygen partial pressure range 10–3.5 to 1

Polymorphism of proteins in selected slovak winter wheat genotypes using SDS-PAGE

Directory of Open Access Journals (Sweden)

Dana Miháliková

2016-12-01

Full Text Available Winter wheat is especially used for bread-making. The specific composition of the grain storage proteins and the representation of individual subunits determines the baking quality of wheat. The aim of this study was to analyze 15 slovak varieties of the winter wheat (Triticum aestivum L. based on protein polymorphism and to predict their technological quality. SDS-PAGE method by ISTA was used to separate glutenin protein subunits. Glutenins were separated into HMW-GS (15.13% and LMW-GS (65.89% on the basis of molecular weight in SDS-PAGE. At the locus Glu-A1 was found allele Null (53% of genotypes and allele 1 (47% of genotypes. The locus Glu-B1 was represented by the HMW-GS subunits 6+8 (33% of genotypes, 7+8 (27% of genotypes, 7+9 (40% of genotypes. At the locus Glu-D1 were detected two subunits, 2+12 (33% of genotypes and 5+10 (67% of genotypes which is correlated with good bread-making properties. The Glu – score was ranged from 4 (genotype Viglanka to 10 (genotypes Viola, Vladarka. According to the representation of individual glutenin subunits in samples, the dendrogram of genetic similarity was constructed. By the prediction of quality the results showed that the best technological quality was significant in the varieties Viola and Vladarka which are suitable for use in food processing.

Selective and faithful imitation at 12 and 15 months.

Science.gov (United States)

Hilbrink, Elma E; Sakkalou, Elena; Ellis-Davies, Kate; Fowler, Nia C; Gattis, Merideth

2013-11-01

Research on imitation in infancy has primarily focused on what and when infants imitate. More recently, however, the question why infants imitate has received renewed attention, partly motivated by the finding that infants sometimes selectively imitate the actions of others and sometimes faithfully imitate, or overimitate, the actions of others. The present study evaluates the hypothesis that this varying imitative behavior is related to infants' social traits. To do so, we assessed faithful and selective imitation longitudinally at 12 and 15 months, and extraversion at 15 months. At both ages, selective imitation was dependent on the causal structure of the act. From 12 to 15 months, selective imitation decreased while faithful imitation increased. Furthermore, infants high in extraversion were more faithful imitators than infants low in extraversion. These results demonstrate that the onset of faithful imitation is earlier than previously thought, but later than the onset of selective imitation. The observed relation between extraversion and faithful imitation supports the hypothesis that faithful imitation is driven by the social motivations of the infant. We call this relation the King Louie Effect: like the orangutan King Louie in The Jungle Book, infants imitate faithfully due to a growing interest in the interpersonal nature of interactions. © 2013 John Wiley & Sons Ltd.

Doping with lead of single crystals of solid solutions of Sbsub(1,5)Bisub(0,5)Tlsub(3)-Bisub(2)Sesub(3)

International Nuclear Information System (INIS)

Abrikosov, N.Kh.; Ivanova, L.D.; Polikarpova, N.V.; Galechyan, M.G.

1984-01-01

By the Czochralski method with liquid phase additional feeding single crystals of solid solutions of the Sbsub(1.5)Bisub(0.5)Tesub(3)-Bisub(2)Sesub(3) system with 0, 10 and 15 mol.% of Bi 2 Se 3 content doped with lead up to 1.37 at/cm 3 are grown. Lead content in crystals and alloys is determined by the atom-abmethod using the scale of standard solutions. It has been found that the effective coefficient of lead distribution in investigated solutions is approximately 0.5. It is shown that lead addition leads to increase of electric conductivity and heat conductivity and decrease of thermoelectric coeffcient at the expense of current carriers concentration growth, the lead in crystals of solid solutions of the Sbsub(1.5)Bisub(0.5)Tesub(3)-Bisub(2)Sesub(3) system being a single charge acceptor

Training-induced inversion of spontaneous exchange bias field on La{sub 1.5}Ca{sub 0.5}CoMnO{sub 6}

Energy Technology Data Exchange (ETDEWEB)

Bufaiçal, L., E-mail: lbufaical@ufg.br [Instituto de Física, Universidade Federal de Goiás, 74001-970 Goiânia, GO (Brazil); Finkler, R.; Coutrim, L.T. [Instituto de Física, Universidade Federal de Goiás, 74001-970 Goiânia, GO (Brazil); Pagliuso, P.G. [Instituto de Física “Gleb Wataghin”, UNICAMP, 13083-859 Campinas, SP (Brazil); Grossi, C.; Stavale, F.; Baggio-Saitovitch, E.; Bittar, E.M. [Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, 22290-180 Rio de Janeiro, RJ (Brazil)

2017-07-01

Highlights: • La{sub 1.5}Ca{sub 0.5}CoMnO{sub 6} exhibits spontaneous exchange bias effect at low temperature. • For successive hysteresis cycles it inverts the shift sign from negative to positive. • For a field cooled hysteresis cycle, the exchange bias effect greatly enhances. • Our results are compared to those of the analogue compound La{sub 1.5}Sr{sub 0.5}CoMnO{sub 6}. - Abstract: In this work we report the synthesis and structural, electronic and magnetic properties of La{sub 1.5}Ca{sub 0.5}CoMnO{sub 6} double-perovskite. This is a re-entrant spin cluster material which exhibits a non-negligible negative exchange bias effect when it is cooled in zero magnetic field from an unmagnetized state down to low temperature. X-ray powder diffraction, X-ray photoelectron spectroscopy and magnetometry results indicate mixed valence state at Co site, leading to competing magnetic phases and uncompensated spins at the magnetic interfaces. We compare the results for this Ca-doped material with those reported for the resemblant compound La{sub 1.5}Sr{sub 0.5}CoMnO{sub 6}, and discuss the much smaller spontaneous exchange bias effect observed for the former in terms of its structural and magnetic particularities. For La{sub 1.5}Ca{sub 0.5}CoMnO{sub 6}, when successive magnetization loops are carried, the spontaneous exchange bias field inverts its sign from negative to positive from the first to the second measurement. We discuss this behavior based on the disorder at the magnetic interfaces, related to the presence of a glassy phase. This compound also exhibits a large conventional exchange bias, for which there is no sign inversion of the exchange bias field for consecutive cycles.

46 CFR 4.05-12 - Alcohol or drug use by individuals directly involved in casualties.

Science.gov (United States)

2010-10-01

... 46 Shipping 1 2010-10-01 2010-10-01 false Alcohol or drug use by individuals directly involved in... § 4.05-12 Alcohol or drug use by individuals directly involved in casualties. (a) For each marine... evidence of alcohol or drug use by individuals directly involved in the casualty. (b) The marine employer...

Page Recognition: Quantum Leap In Recognition Technology

Science.gov (United States)

Miller, Larry

1989-07-01

No milestone has proven as elusive as the always-approaching "year of the LAN," but the "year of the scanner" might claim the silver medal. Desktop scanners have been around almost as long as personal computers. And everyone thinks they are used for obvious desktop-publishing and business tasks like scanning business documents, magazine articles and other pages, and translating those words into files your computer understands. But, until now, the reality fell far short of the promise. Because it's true that scanners deliver an accurate image of the page to your computer, but the software to recognize this text has been woefully disappointing. Old optical-character recognition (OCR) software recognized such a limited range of pages as to be virtually useless to real users. (For example, one OCR vendor specified 12-point Courier font from an IBM Selectric typewriter: the same font in 10-point, or from a Diablo printer, was unrecognizable!) Computer dealers have told me the chasm between OCR expectations and reality is so broad and deep that nine out of ten prospects leave their stores in disgust when they learn the limitations. And this is a very important, very unfortunate gap. Because the promise of recognition -- what people want it to do -- carries with it tremendous improvements in our productivity and ability to get tons of written documents into our computers where we can do real work with it. The good news is that a revolutionary new development effort has led to the new technology of "page recognition," which actually does deliver the promise we've always wanted from OCR. I'm sure every reader appreciates the breakthrough represented by the laser printer and page-makeup software, a combination so powerful it created new reasons for buying a computer. A similar breakthrough is happening right now in page recognition: the Macintosh (and, I must admit, other personal computers) equipped with a moderately priced scanner and OmniPage software (from Caere

2018-02-23T15:33:05Z https://www.ajol.info/index.php/all/oai oai:ojs ...

African Journals Online (AJOL)

article/43127 2018-02-23T15:33:05Z ajb:ART Studies on the quantitative and qualitative characters of cocoons and silk from methoprene and fenoxycarb treated Bombyx mori (L) larvae Mamatha, DM Cohly, HPP Raju, AHH Rao, MR Silkworm, ...

77 FR 67724 - Rescission of Social Security Acquiescence Ruling 05-1(9)

Science.gov (United States)

2012-11-13

...-1213 or TTY 1-800-325-0778, or visit our Internet site, Social Security Online, at http://www... SOCIAL SECURITY ADMINISTRATION [Docket No. SSA-2012-0058] Rescission of Social Security Acquiescence Ruling 05-1(9) AGENCY: Social Security Administration. [[Page 67725

Entertainment Pages.

Science.gov (United States)

Druce, Mike

1981-01-01

Notes that the planning of an effective entertainment page in a school newspaper must begin by establishing its purpose. Examines all the elements that contribute to the makeup of a good entertainment page. (RL)

The single crystal structure determination of Ln{sub 6}MnSb{sub 15} (Ln=La, Ce), Ln{sub 6}Mn{sub 1-x}Zn{sub x}Sb{sub 15} (x∝0.5), and Ln{sub 6}ZnSb{sub 15} (Ln=La-Pr)

Energy Technology Data Exchange (ETDEWEB)

Benavides, Katherine A.; McCandless, Gregory T.; Chan, Julia Y. [Texas Univ., Dallas, Richardson, TX (United States). Dept. of Chemistry and Biochemistry

2017-09-01

Single crystals of Ln{sub 6}MnSb{sub 15} (Ln=La, Ce), Ln{sub 6}Mn{sub 1-x}Zn{sub x}Sb{sub 15} (x∝0.5), and Ln{sub 6}ZnSb{sub 15} (Ln=La-Pr) have been successfully grown and the compounds adopt the orthorhombic Ln{sub 6}MnSb{sub 15} structure type (space group Immm), with a∝4.3 Aa, b∝15 Aa, and c∝19 Aa. This structure is comprised of antimony nets and antimony ribbons which exhibit positional disorder at connecting points between antimony substructures, in addition to two partially occupied transition metal sites. The unit cell volumes of the La analogs displayed a systematic decrease upon Zn substitution. However, for the Ce{sub 6}Mn{sub 1-x}Zn{sub x}Sb{sub 15} and Pr{sub 6}Mn{sub 1-x}Zn{sub x}Sb{sub 15} (x∝0.5), the volumes deviate from linearity as observed in the parent compounds.

2018-05-04T15:37:20Z https://www.ajol.info/index.php/all/oai oai:ojs ...

African Journals Online (AJOL)

article/40028 2018-05-04T15:37:20Z jonamp:ART Analogy between the standard gauge model of the basic forces and hadronic mechanics Animalu, A O In this paper we review the standard gauge model of the basic (action-at-a-distance) forces ...

[Hypobaric 0.15% bupivacaine versus hyperbaric 0.5% bupivacaine for posterior (dorsal) spinal block in outpatient anorectal surgery.].

Science.gov (United States)

Imbelloni, Luiz Eduardo; Vieira, Eneida Maria; Gouveia, M A; Netinho, João Gomes; Cordeiro, José Antonio

2006-12-01

The aim of this study was to study low dose hypobaric 0.15% bupivacaine and hyperbaric 0.5% bupivacaine in outpatient anorectal surgical procedures. Two groups of 50 patients, physical status ASA I and II, undergoing anorectal surgical procedures in a jackknife position, received 6 mg of hypobaric 0.15% bupivacaine in the surgical position (Group 1) or 6 mg of hyperbaric 0.5% bupivacaine in the sitting position for 5 minutes, after which they were placed in a jackknife position (Group 2). Sensitive and motor blockade, time of first urination, ambulation, complications, and the need for analgesics were evaluated. Patients were followed until the third postoperative day and questioned whether they experienced post-puncture headache or temporary neurological symptoms, and until the 30th day and questioned about permanent neurological complications. The test t Student, Mood's median, and Fisher Exact test were used for statistical analysis, and a p hyperbaric or hypobaric, can be safely done.

12/15 lipoxygenase regulation of colorectal tumorigenesis is determined by the relative tumor levels of its metabolite 12-HETE and 13-HODE in animal models

OpenAIRE

Chang, Jian; Jiang, Li; Wang, Yinqiu; Yao, Bing; Yang, Shilin; Zhang, Bixiang; Zhang, Ming-Zhi

2014-01-01

Colorectal cancer (CRC) continues to be a major cause of morbidity and mortality. The arachidonic acid (AA) pathway and linoleic acid (LA) pathway have been implicated as important contributors to CRC development and growth. Human 15-lipoxygenase 1 (15-LOX-1) converts LA to anti-tumor 13-S-hydroxyoctadecadienoic acid (13-HODE)and 15-LOX-2 converts AA to 15-hydroxyeicosatetraenoic acid (15-HETE). In addition, human 12-LOX metabolizes AA to pro-tumor 12-HETE. In rodents, the function of 12-LOX ...

Full page insight

DEFF Research Database (Denmark)

Cortsen, Rikke Platz

2014-01-01

Alan Moore and his collaborating artists often manipulate time and space by drawing upon the formal elements of comics and making alternative constellations. This article looks at an element that is used frequently in comics of all kinds – the full page – and discusses how it helps shape spatio......, something that it shares with the full page in comics. Through an analysis of several full pages from Moore titles like Swamp Thing, From Hell, Watchmen and Promethea, it is made clear why the full page provides an apt vehicle for an apocalypse in comics....

Resonances in the nuclear reactions 15N + 12C and 15N + 16O

International Nuclear Information System (INIS)

Monnehan, G.A.

1987-06-01

The reaction 12 C + 15 N have been studied at 15 N beam energies between 30 and 70 MeV. For each reaction, about twelve residual nuclei have been identified through the γ-ray detection method. Excitation functions were obtained for the fusion and peripheral channels. Resonances are seen in the channels containing at least one α particle at energies below 50 MeV. At higher energies, strong structures are observed in the direct reaction channels. The evolution of the fusion cross section is well reproduced by a model based on the statistical desexcitation of the compound nucleus if the discrete states of the residual nuclei are taken into account. The favourable observation of resonant phenomena in 15 N induced reactions can be understood in terms of a small number of channels open to the grazing wave. In the range 50 to 60 MeV, there is a strong coupling between the fusion and the direct reaction channels. The occurrence of resonances above E lab = 50 MeV in the peripheral channels is explained with the band crossing and effective barrier models. In the 15 N induced reactions, the absorption of the surface waves is weak [fr

Myths and Facts about Suicide from Individuals Involved in Suicide Prevention

Science.gov (United States)

Schurtz, David R.; Cerel, Julie; Rodgers, Philip

2010-01-01

Myth-busting, in which a so-called myth is presented and dispelled by facts, is used in suicide prevention gatekeeper trainings such as QPR. Evidence from other areas of public health shows this technique leads to memory for myths and not facts. An internet survey was used to determine if the "myths" and "facts" presented in QPR are endorsed as…

Facile synthesis of aluminum-doped LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} hollow microspheres and their electrochemical performance for high-voltage Li-ion batteries

Energy Technology Data Exchange (ETDEWEB)

Liu, Xiaolin, E-mail: liu_x_l@sina.cn [College of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi (China); Li, Dan; Mo, Qiaoling; Guo, Xiaoyu; Yang, Xiaoxiao [College of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi (China); Chen, Guoxin, E-mail: gxchen@nimte.ac.cn [Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang (China); Zhong, Shengwen [College of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi (China)

2014-10-01

Graphical abstract: LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} and Al doped LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} hollow microspheres as 5 V cathodes are prepared by templated transformation method using monodisperse MnCO{sub 3} microspheres as precursor. As a cathodic material for high voltage lithium ion batteries, the as-synthesized LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} and Al doped LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} hollow microspheres are investigated by galvanostatic cycling (GC) approach to evaluate their electrochemical properties in the range of 2.7–4.8 V vs. Li/Li{sup +} at the current rate 1 C. - Highlights: • LNMO and LANMO hollow microspheres are synthesized by template method. • The as-synthesized hollow microspheres have particle-size of 2 μm. • The hollow structure is responsible for improved electrochemical performance. - Abstract: This paper presents the preparation of LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} and aluminum (Al) doped LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} hollow microspheres as 5 V cathodes using monodisperse MnCO{sub 3} microspheres as precursor and template, which were synthesized using MnSO{sub 4}·H{sub 2}O, NaHCO{sub 3} and ethanol in water at room temperature. XRD and morphology characterization results indicated that the as-prepared LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} and Al doped LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} were both spinel structure, and have particle sizes of 2–3 μm. The cathode electrochemical properties of LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} and Al doped LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} hollow microspheres (as 5 V cathodes) were evaluated and compared by galvanostatic cycling (GC) vs. Li/Li{sup +} at the current rate 1 C in 2.7–4.8 V. The specific initial capacities of all samples were in the range of 70–120 mA h g{sup −1}. Compared to undoped LiNi{sub 0.5}Mn{sub 1.5}O{sub 4}, Al doped LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} hollow structures can effectively improve discharge capacity (up to 140 (±5) mA h g{sup −1}) and cycling stability (70

Microstructure optimization for high-performance PrBa0.5Sr0.5Co1.5Fe0.5O5+δ-La2NiO4+δ core-shell cathode of solid oxide fuel cells

Science.gov (United States)

Li, Jin; Qiu, Peng; Xia, Meng; Jia, Lichao; Chi, Bo; Pu, Jian; Li, Jian

2018-03-01

Four PrBa0.5Sr0.5Co1.5Fe0.5O5+δ (PBSCF)-La2NiO4+δ (LN) core-shell cathodes, designated as PL-0, PL-1, PL-3 and PL-5, are prepared by infiltrating LN solution into PBSCF scaffold, and they are investigated in terms of the effect of LN thickness on their electrochemical performance. PL-3 with a continuous LN coating of a moderate average thickness (∼9 nm) demonstrates the lowest initial polarization resistance (0.51 Ω cm2) and highest power density (0.71 W cm-2) among all the cathodes. Polarized at 400 mA cm-2 and 700 °C for up to 40 h, the polarization resistance of all the prepared cathodes increases to approach a stable level after early stage decrease due to current activation, and PL-3 exhibits a slower average rate of performance degradation (25%). The electrochemical performance improvement is mainly attributed to that LN has a relatively high oxygen surface exchange coefficient and continuous LN coating depresses Sr segregation at PBSCF/LN interface.

12 CFR 1.5 - Safe and sound banking practices; credit information required.

Science.gov (United States)

2010-01-01

... interest rate, credit, liquidity, price, foreign exchange, transaction, compliance, strategic, and... 12 Banks and Banking 1 2010-01-01 2010-01-01 false Safe and sound banking practices; credit information required. 1.5 Section 1.5 Banks and Banking COMPTROLLER OF THE CURRENCY, DEPARTMENT OF THE...

2018-05-01T19:38:15Z https://www.ajol.info/index.php/all/oai oai:ojs ...

African Journals Online (AJOL)

article/35403 2018-05-01T19:38:15Z afsci:ART Contamination en métaux traces des ... Les résultats obtenus montrent que les concentrations métalliques trouvées sont supérieures aux concentrations relevées par d\\'autres travaux sur des ...

Neuroprotection of taurine through inhibition of 12/15 lipoxygenase pathway in cerebral ischemia of rats.

Science.gov (United States)

Zhang, Zhe; Yu, Rongbo; Cao, Lei

2017-05-01

Cerebral ischemia exhibits a multiplicity of pathophysiological mechanisms. Taurine (Tau), an endogenous substance, possesses a number of cytoprotective properties. The aim of the present study was to examine the neuroprotective effect of Tau, through affecting 12/15 lipoxygenase (12/15-LOX) signal pathway in an acute permanent middle cerebral artery occlusion (MCAO) model of rats. Sprague-Dawley rats were randomly divided into 3 groups (n = 10), namely the sham-operated group, MCAO group and Tau group. Tau was intraperitoneally administrated immediately after cerebral ischemia. At 24 h after MCAO, neurological function score, brain water content and infarct volume were assessed. The expression of 12/15-lipoxygenase (12/15-LOX), p38 mitogen-activated protein kinase (p38 MAPK), and cytosolic phospholipase A2 (cPLA2) was measured by Western blot. Enzyme-linked immunosorbent assay was used to evaluate the inflammatory factors TNF-α, IL-1β and IL-6 in serum. Compared with MCAO group, taurine significantly improved neurological function and significantly reduced brain water content (p Taurine protected the brain from damage caused by MCAO; this effect may be through down-regulation of 12/15-LOX, p38 MAPK, and cPLA2.

Trends in Financing Dental Education, 2004-05 to 2011-12.

Science.gov (United States)

Bailit, Howard L; Beazoglou, Tryfon

2017-08-01

This article examines dental school financial trends from 2004-05 to 2011-12, based on data from the American Dental Association (ADA) annual financial survey completed by all U.S. dental schools. For public schools, revenues from tuition and fees increased 68.6%, and state support declined 17.2% over the examined period. For private schools, revenues from tuition and fees increased 38.9%, and university indirect subsidies declined 77.9% over the same period. The major factors affecting dental school expenditures were the number of students and postdoctoral students, faculty practice, and research. The findings suggest that dental schools are now more dependent financially on tuition and fees than in the past. Schools have been able to pass on increases in operating costs to students and specialty postdoctoral students. Now that growth in dentists' incomes is slowing and student debt is at an all-time high, this financing strategy may not be sustainable in the long run. This article was written as part of the project "Advancing Dental Education in the 21 st Century."

Formation of Dense Pore Structure by Te Addition in Bi0.5Sb1.5Te3: An Approach to Minimize Lattice Thermal Conductivity

Directory of Open Access Journals (Sweden)

Syed Waqar Hasan

2013-01-01

Full Text Available We herein report the electronic and thermal transport properties of p-type Bi0.5Sb1.5Te3 polycrystalline bulks with dense pore structure. Dense pore structure was fabricated by vaporization of residual Te during the pressureless annealing of spark plasma sintered bulks of Te coated Bi0.5Sb1.5Te3 powders. The lattice thermal conductivity was effectively reduced to the value of 0.35 W m−1 K−1 at 300 K mainly due to the phonon scattering by pores, while the power factor was not significantly affected. An enhanced ZT of 1.24 at 300 K was obtained in spark plasma sintered and annealed bulks of 3 wt.% Te coated Bi0.5Sb1.5Te3 by these synergetic effects.

12 CFR 652.15 - Interest rate risk management and requirements.

Science.gov (United States)

2010-01-01

... 12 Banks and Banking 6 2010-01-01 2010-01-01 false Interest rate risk management and requirements... AGRICULTURAL MORTGAGE CORPORATION FUNDING AND FISCAL AFFAIRS Investment Management § 652.15 Interest rate risk... (direction, controls, and supervision) to the interest rate risk management program and must be knowledgeable...

Insulin-like growth factor I reduces lipid oxidation and foam cell formation via downregulation of 12/15-lipoxygenase.

Science.gov (United States)

Sukhanov, Sergiy; Snarski, Patricia; Vaughn, Charlotte; Lobelle-Rich, Patricia; Kim, Catherine; Higashi, Yusuke; Shai, Shaw-Yung; Delafontaine, Patrice

2015-02-01

We have shown that insulin-like growth factor I (IGF-1) infusion in Apoe(-/-) mice decreased atherosclerotic plaque size and plaque macrophage and lipid content suggesting that IGF-1 suppressed formation of macrophage-derived foam cells. Since 12/15-lipoxygenase (12/15-LOX) plays an important role in OxLDL and foam cell formation, we hypothesized that IGF-1 downregulates 12/15-LOX, thereby suppressing lipid oxidation and foam cell formation. We found that IGF-1 decreased 12/15-LOX plaque immunopositivity and serum OxLDL levels in Apoe(-/-) mice. IGF-1 reduced 12/15-LOX protein and mRNA levels in cultured THP-1 macrophages and IGF-1 also decreased expression of STAT6 transcription factor. IGF-1 reduction in macrophage 12/15-LOX was mediated in part via a PI3 kinase- and STAT6-dependent transcriptional mechanism. IGF-1 suppressed THP-1 macrophage ability to oxidize lipids and form foam cells. IGF-1 downregulated 12/15-LOX in human blood-derived primary macrophages and IGF-1 decreased LDL oxidation induced by these cells. IGF-1 reduced LDL oxidation and formation of foam cells by wild type murine peritoneal macrophages, however these effects were completely blocked in 12/15-LOX-null macrophages suggesting that the ability of IGF-1 to reduce LDL oxidation and foam cells formation is dependent on its ability to downregulate 12/15-LOX. Overall our data demonstrate that IGF-1 reduces lipid oxidation and foam cell formation via downregulation of 12/15-LOX and this mechanism may play a major role in the anti-atherosclerotic effects of IGF-1. Published by Elsevier Ireland Ltd.

Insulin-like Growth Factor I Reduces Lipid Oxidation and Foam Cell Formation via Downregulation of 12/15-lipoxygenase

Science.gov (United States)

Sukhanov, Sergiy; Snarski, Patricia; Vaughn, Charlotte; Lobelle-Rich, Patricia; Kim, Catherine; Higashi, Yusuke; Shai, Shaw-Yung; Delafontaine, Patrice

2014-01-01

Objective We have shown that insulin-like growth factor I (IGF-1) infusion in Apoe−/− mice decreased atherosclerotic plaque size and plaque macrophage and lipid content suggesting that IGF-1 suppressed formation of macrophage-derived foam cells. Since 12/15-lipoxygenase (12/15-LOX) plays an important role in OxLDL and foam cell formation, we hypothesized that IGF-1 downregulates 12/15-LOX, thereby suppressing lipid oxidation and foam cell formation. Approach and Results We found that IGF-1 decreased 12/15-LOX plaque immunopositivity and serum OxLDL levels in Apoe−/− mice. IGF-1 reduced 12/15-LOX protein and mRNA levels in cultured THP-1 macrophages and IGF-1 also decreased expression of STAT6 transcription factor. IGF-1 reduction in macrophage 12/15-LOX was mediated in part via a PI3 kinase- and STAT6-dependent transcriptional mechanism. IGF-1 suppressed THP-1 macrophage ability to oxidize lipids and form foam cells. IGF-1 downregulated 12/15-LOX in human blood-derived primary macrophages and IGF-1 decreased LDL oxidation induced by these cells. IGF-1 reduced LDL oxidation and formation of foam cells by wild type murine peritoneal macrophages, however these effects were completely blocked in 12/15-LOX-null macrophages suggesting that the ability of IGF-1 to reduce LDL oxidation and foam cells formation is dependent on its ability to downregulate 12/15-LOX. Conclusions Overall our data demonstrate that IGF-1 reduces lipid oxidation and foam cell formation via downregulation of 12/15-LOX and this mechanism may play a major role in the anti-atherosclerotic effects of IGF-1. PMID:25549319

Users page feedback

CERN Multimedia

2010-01-01

In October last year the Communication Group proposed an interim redesign of the users’ web pages in order to improve the visibility of key news items, events and announcements to the CERN community. The proposed update to the users' page (right), and the current version (left, behind) This proposed redesign was seen as a small step on the way to much wider reforms of the CERN web landscape proposed in the group’s web communication plan.   The results are available here. Some of the key points: - the balance between news / events / announcements and access to links on the users’ pages was not right - many people asked to see a reversal of the order so that links appeared first, news/events/announcements last; - many people felt that we should keep the primary function of the users’ pages as an index to other CERN websites; - many people found the sections of the front page to be poorly delineated; - people do not like scrolling; - there were performance...

Quantum level structure of molecular magnets, Fe12 and V15

Energy Technology Data Exchange (ETDEWEB)

Ajiro, Y.; Inagaki, Y.; Itoh, H.; Asano, T.; Narumi, Y.; Kindo, K.; Sakon, T.; Nojiri, H.; Motokawa, M.; Cornia, A.; Gatteschi, D.; Mueller, A.; Barbara, B

2003-05-01

We review our recent work on molecular magnets, Fe12 and V15 with focus on the determination of low-lying quantum energy levels which have permanent importance in understanding their unique quantum magnetism.

Quantum level structure of molecular magnets, Fe12 and V15

International Nuclear Information System (INIS)

Ajiro, Y.; Inagaki, Y.; Itoh, H.; Asano, T.; Narumi, Y.; Kindo, K.; Sakon, T.; Nojiri, H.; Motokawa, M.; Cornia, A.; Gatteschi, D.; Mueller, A.; Barbara, B.

2003-01-01

We review our recent work on molecular magnets, Fe12 and V15 with focus on the determination of low-lying quantum energy levels which have permanent importance in understanding their unique quantum magnetism

2018-05-09T12:11:53Z https://www.ajol.info/index.php/all/oai oai:ojs ...

African Journals Online (AJOL)

article/7559 2018-05-09T12:11:53Z ajns:ART HYDROCEPHALIE: UN CAS RARE DE TOXOPLAMOSE CEREBRALE DANS LE CADRE D\\'UN SYNDROME D\\'IMMUNO-DEFICIENCE ACQUISE Djientcheu, Vincent de Paul; Neurosurgery Unit, ...

Sleep Apnea Information Page

Science.gov (United States)

... Page You are here Home » Disorders » All Disorders Sleep Apnea Information Page Sleep Apnea Information Page What research is being done? ... Institutes of Health (NIH) conduct research related to sleep apnea in laboratories at the NIH, and also ...

The effect of a 12 week plyometric and soccer training on the cardiac structure and function among the 13-15 years old boys

Directory of Open Access Journals (Sweden)

Bakhtiar Tartibian

2017-04-01

Full Text Available Background: Exercise plays an important role in improving cardiovascular function. Due to the increasing tendency of children to the soccer the purpose of this investigation was to examine the effects of a 12 week plyometric and soccer training on the cardiac structure and function of healthy 13-15 years old boys. Materials and Methods: This quasi- experimental study was conducted with a pre-test and post-test design. The participants (n=20 were selected among the non-athletic healthy boys (13-15 years from Miyaneh (East Azerbaijan, Iran. After taking informed consent the participants were voluntarily participated in two equal Training and Control groups. The participants in the Exercise group performed a 12 week plyometric and soccer training. Under basic conditions and after a 12 week follow-up using the echocardiography both groups were examined for left ventricular end-diastolic dimension (LVEDD, left ventricular end-systolic dimension (LVESD, left ventricular end diastolic posterior wall dimension¬ (LVPWd, inter-ventricular septal end diastolic dimension (IVSd, stroke volume (SV, ejection fraction (EF and cardiac output (CO. Results: After a 12 week training program the LVEDD, LVPWd and SV were significantly increased (P<0.05. The EF in the Exercise group had no increase. Moreover, LVESD and IVSd were similar in both groups. Conclusion: A twelve week plyometric and soccer training in 13-15 years old boys result in significant changes in some cardiac structural and functional indexes.

77 FR 12731 - Thiamethoxam; Pesticide Tolerances

Science.gov (United States)

2012-03-02

..., except fuzzy 0.20 kiwifruit Fruit, stone, group 12 0.5 Goat, meat 0.02 Goat, meat byproducts 0.04 Grain, aspirated fractions 2.0 Grain, cereal, group 15, except barley 0.02 Grape, raisin 0.30 Hog, meat 0.02 Hog....40 Canola, seed 0.02 Cattle, meat 0.02 [[Page 12740

Synthesis and crystal structure of Fe[(Te1.5Se0.5)O5]Cl, the first iron compound with selenate(IV) and tellurate(IV) groups

Science.gov (United States)

Akhrorov, Akhmad Yu; Kuznetsova, Elena S.; Aksenov, Sergey M.; Berdonosov, Peter S.; Kuznetsov, Alexey N.; Dolgikh, Valery A.

2017-12-01

During the search for selenium analogues of FeTe2O5Cl, the new iron (III) tellurate(IV) selenate(IV) chloride with the composition Fe[(Te1.5Se0.5)O5]Cl was synthesized by chemical vapor transport (CVT) reaction and characterized by TGA-, EDX-,SCXRD-analysis, as well as IR and Raman spectroscopy. It was found that Fe[(Te1.5Se0.5)O5]Cl crystallizes in the monoclinic space group P21/c with unitcell parameters a = 5.183(3) Å, b = 15.521(9) Å, c = 7.128(5) Å and β = 107.16(1)°. The crystal structure of Fe[(Te1.5Se0.5)O5]Cl represents a new structure type and contains electroneutral heteropolyhedral layers formed by dimers of the [FeO5Cl]8- octahedra, linked via common O-O edges, and mixed [Te3SeO10]4- tetramers. Adjacent layers are stacked along the b axis and linked by weak residual bonds. The new compound is stable up to 420 °C. DFT calculations predict Fe[(Te1.5Se0.5)O5]Cl to be a wide-gap semiconductor with the band gap of ca. 2.7 eV.

Enhancing pitting corrosion resistance of Al{sub x}CrFe{sub 1.5}MnNi{sub 0.5} high-entropy alloys by anodic treatment in sulfuric acid

Energy Technology Data Exchange (ETDEWEB)

Lee, C.P.; Chen, Y.Y.; Hsu, C.Y.; Yeh, J.W. [Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 300, Taiwan (China); Shih, H.C. [Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 300, Taiwan (China); Institute of Materials Science and Nanotechnology, Chinese Culture University, Taipei 111, Taiwan (China)], E-mail: hcshih@mx.nthu.edu.tw

2008-12-01

High-entropy alloys are a newly developed family of multi-component alloys that comprise various major alloying elements. Each element in the alloy system is present in between 5 and 35 at.%. The crystal structures and physical properties of high-entropy alloys differ completely from those of conventional alloys. The electrochemical impedance spectra (EIS) of the Al{sub x}CrFe{sub 1.5}MnNi{sub 0.5} (x = 0, 0.3, 0.5) alloys, obtained in 0.1 M HCl solution, clearly revealed that the corrosion resistance values were determined to increase from 21 to 34 {omega}cm{sup 2} as the aluminum content increased from 0 to 0.5 mol, and were markedly lower than that of 304 stainless steel (243 {omega}cm{sup 2}). At passive potential, the corresponding current declined with the anodizing time accounting, causing passivity by the growth of the multi-component anodized film in H{sub 2}SO{sub 4} solution. X-ray photoelectron spectroscopy (XPS) analyses revealed that the surface of anodized Al{sub 0.3}CrFe{sub 1.5}MnNi{sub 0.5} alloy formed aluminum and chromium oxide film which was the main passivating compound on the alloy. This anodic treatment increased the corrosion resistance in the EIS measurements of the CrFe{sub 1.5}MnNi{sub 0.5} and Al{sub 0.3}CrFe{sub 1.5}MnNi{sub 0.5} alloys by two orders of magnitude. Accordingly, the anodic treatment of the Al{sub x}CrFe{sub 1.5}MnNi{sub 0.5} alloys optimized their surface structures and minimized their susceptibility to pitting corrosion.

Physical Activity in U.S. Youth Aged 12-15 Years, 2012

Science.gov (United States)

... Order from the National Technical Information Service NCHS Physical Activity in U.S. Youth Aged 12–15 Years, 2012 ... percentage of youth engaged in moderate-to-vigorous physical activity for at least 60 minutes each day? About ...

CA 15-3 predicting breast cancer relapse: beware of vitamin B12 deficiency.

Science.gov (United States)

Rassy, Elie El; Ghor, Maya Al; Kattan, Joseph

2018-05-10

A sustained increase of cancer antigen 15-3 serum levels was found in a 54-year-old woman treated 2 years ago for early stage breast cancer, without any evidence of cancer recurrence. The patient thereafter developed severe megaloblastic anemia secondary to vitamin B12 deficiency. Supplementation with B12 to reverse the anemia led to the normalization of the cancer antigen 15-3 serum levels. As such, with the limited understanding of molecular biology, the integrative approach of clinical history, physical examination, and diagnostic imaging remain pivotal in the management of cancer patients.

Moessbauer study of (Fe1-x Cu x )4N (0.05≤x≤0.15) films

International Nuclear Information System (INIS)

El Khiraoui, S.; Sajieddine, M.; Vergnat, M.; Bauer, Ph.; Mabrouki, M.

2007-01-01

In this work, we have prepared nitrogenated Fe 1- x Cu x alloys by reactive evaporation under a flow of nitrogen ions. After annealing, X-ray diffraction shows that we have synthesized the γ'-(Fe 1- x Cu x ) 4 N (0.05≤x≤0.15) compounds. The films were investigated by Moessbauer spectroscopy. The crystallographic structure and the respective positions of the Fe and Cu atoms in the compounds have been determined

Enhancement of the piezoelectric properties of sodium lanthanum bismuth titanate (Na0.5La0.5Bi4Ti4O15) through modification with cobalt

International Nuclear Information System (INIS)

Wang Chunming; Wang Jinfeng; Zheng Limei; Zhao Minglei; Wang Chunlei

2010-01-01

The dielectric, piezoelectric, and electromechanical properties of B-site cobalt-modified sodium lanthanum bismuth titanate (Na 0.5 La 0.5 Bi 4 Ti 4 O 15 , NLBT) piezoelectric ceramics were investigated. The piezoelectric properties of NLBT ceramics can be enhanced by cobalt modifications. The NLBT ceramics modified with 0.2 wt.% cobalt trioxide (NLBT-C4) possess good piezoelectric properties, with piezoelectric coefficient d 33 of 27 pC/N, electromechanical coupling factors (k p and k t ) of 6.5% and 28.5%, and mechanical quality factor Q m (k p mode) of 3400. The Curie temperature T c of cobalt-modified NLBT ceramics was found to slightly higher than that of pure NLBT ceramics. A large dielectric abnormity in dielectric loss tan δ was observed in NLBT ceramics, which can be significantly suppressed by cobalt modification. Thermal annealing studies presented the cobalt-modified NLBT ceramics possess stable piezoelectric properties.

A Survey on PageRank Computing

OpenAIRE

Berkhin, Pavel

2005-01-01

This survey reviews the research related to PageRank computing. Components of a PageRank vector serve as authority weights for web pages independent of their textual content, solely based on the hyperlink structure of the web. PageRank is typically used as a web search ranking component. This defines the importance of the model and the data structures that underly PageRank processing. Computing even a single PageRank is a difficult computational task. Computing many PageRanks is a much mor...

Search Results | Page 15 | IDRC - International Development ...

International Development Research Centre (IDRC) Digital Library (Canada)

2018-01-12

Results 141 - 150 of 8502 ... Threatened by floods, the Pampas of Argentina are vanishing. ... January 12, 2018 ... based in Myanmar whose research is centered on national-level issues of democratic transition and economic development.

In-Degree and PageRank of web pages: why do they follow similar power laws?

NARCIS (Netherlands)

Litvak, Nelli; Scheinhardt, Willem R.W.; Volkovich, Y.

2009-01-01

PageRank is a popularity measure designed by Google to rank Web pages. Experiments confirm that PageRank values obey a power law with the same exponent as In-Degree values. This paper presents a novel mathematical model that explains this phenomenon. The relation between PageRank and In-Degree is

Facile fabrication of core–shell ZnO/Bi{sub 0.5}Sb{sub 1.5}Te{sub 3} nanorods: Enhanced photoluminescence through electron charge

Energy Technology Data Exchange (ETDEWEB)

Shen, Shengfei; Gao, Hongli [School of Materials Science & Engineering, Beihang University, Beijing 100191 (China); Deng, Yuan, E-mail: dengyuan@buaa.edu.cn [School of Materials Science & Engineering, Beihang University, Beijing 100191 (China); Wang, Yao [School of Materials Science & Engineering, Beihang University, Beijing 100191 (China); Qu, Shengchun, E-mail: qsc@semi.ac.cn [Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 (China)

2016-01-15

Graphical abstract: - Highlights: • The Bi{sub 0.5}Sb{sub 1.5}Te{sub 3}/ZnO core–shells prepared by combining a facile hydrothermal growth and magnetron sputtering approach. • The light absorption and photoluminescence emission of the ZnO and the Bi{sub 0.5}Sb{sub 1.5}Te{sub 3}/ZnO core–shells are investigated. • The core–shell structure reveals a simultaneous novelty enhancement of the photoluminescence emission in the UV and visible range. • The mechanism for the PL simultaneous enhancement is described. - Abstract: Surface decoration techniques are emerging as promising strategy to improve the optical properties of the ZnO based materials. The core–shell ZnO/Bi{sub 0.5}Sb{sub 1.5}Te{sub 3} nanorods were grown on a FTO substrate through a facile hydrothermal and magnetron sputtering combined approach. The microstructure of the core–shell nanorod arrays were investigated by the X-ray diffraction (XRD), a field emission Scanning electron microscopy (SEM) and high resolution transmission electron microscope (HTEM). The optical properties of the core–shell nanorod arrays were investigated through the diffuse reflectance absorption spectra and photoluminescence emission. The visible light absorption and especially the photoluminescence emission of the ZnO nanorods are enhanced markedly with the Bi{sub 0.5}Sb{sub 1.5}Te{sub 3} grains coating the ZnO nanorods through the electron charge.

In-degree and pageRank of web pages: Why do they follow similar power laws?

NARCIS (Netherlands)

Litvak, Nelli; Scheinhardt, Willem R.W.; Volkovich, Y.

The PageRank is a popularity measure designed by Google to rank Web pages. Experiments confirm that the PageRank obeys a 'power law' with the same exponent as the In-Degree. This paper presents a novel mathematical model that explains this phenomenon. The relation between the PageRank and In-Degree

Consolidation of Military Pay and Personnel Functions (Copper). Volume II

Science.gov (United States)

1978-05-01

Inclusi Log In 3815 Sign 3815 To T.S ToPage 11-15-A12 1 1 -1-AlICOPPER From Pago 11-15-All Log 11TL In UTL Control Log From Page 11-15-AIO Today’s saing...and Annota 381 for Inclusi 381 Il-S-ll To Page 11-15-A12 i11-15_Al INE TK T38T SUflLUEOT From Page I1-15-All Log UTL In UTL Control Log Fro Po Pa 9 I-5

Calibrating page sized Gafchromic EBT3 films

Energy Technology Data Exchange (ETDEWEB)

Crijns, W.; Maes, F.; Heide, U. A. van der; Van den Heuvel, F. [Department of Radiation Oncology, University Hospitals Leuven, Herestraat 49, 3000 Leuven (Belgium); Department ESAT/PSI-Medical Image Computing, Medical Imaging Research Center, KU Leuven, Herestraat 49, 3000 Leuven (Belgium); Department of Radiation Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX Amsterdam (Netherlands); Department of Radiation Oncology, University Hospitals Leuven, Herestraat 49, 3000 Leuven (Belgium)

2013-01-15

balance between cost effectiveness and dosimetric accuracy. The validation resulted in dose errors of 1%-2% for the two different time points, with a maximal absolute dose error around 0.05 Gy. The lateral correction reduced the RMSE values on the sides of the film to the RMSE values at the center of the film. Conclusions: EBT3 Gafchromic films were calibrated for large field dosimetry with a limited number of page sized films and simple static calibration fields. The transmittance was modeled as a linear combination of two transmittance states, and associated with dose using a rational calibration function. Additionally, the lateral scan effect was resolved in the calibration function itself. This allows the use of page sized films. Only two calibration films were required to estimate both the dose and the lateral response. The calibration films were used over the course of a week, with residual dose errors Less-Than-Or-Slanted-Equal-To 2% or Less-Than-Or-Slanted-Equal-To 0.05 Gy.

Search Results | Page 15 | IDRC - International Development ...

International Development Research Centre (IDRC) Digital Library (Canada)

2018-01-12

Results 141 - 150 of 8518 ... Accelerating vaccine development for African swine fever virus through synthetic biology. Pigs are among the most profitable livestock for poor farmers. Published date. January 12, 2018. Research in Action. Food and Agriculture Gender ...

FTIR spectra of the solid solutions (Na0.88K0.12)VO3, (Na0.5K0.5)VO3, and Na(V0.66P0.34)O3

Science.gov (United States)

de Waal, D.; Heyns, A. M.

1992-03-01

It is known that three different solid solutions, (Na0.88K0.12)VO3, (Na0.5K0.5)VO3 and Na(V0.66P0.34)O3, form in the (Na,K)(V,P)O3 system. These compounds all have monoclinic crystal structures similar to the pure alkali metal metavanadates containing small cations, e.g. Li+ and Na+ (Space group C2/c). Metavanadates with large cations like K+, Rb+, C+s and NH+4 form orthorhombic crystals, space group Pbcm. All those are structurally related to the silicate pyroxenes. Na(V0.66P0.34)O3 and (Na0.88K0.12)VO3 have the same modified diopside structure as (alpha) - NaVO3 while (Na0.5K0.5)VO3 adopts the true diopside structure. The infrared spectra of the three solid solutions are reported here in comparison with those of (alpha) -NaVO3 and KVO3. The results are also correlated with those obtained in two independent high pressure Raman studies of NH4VO3 and RbVO3 as the introduction of a larger cation like K+ should increase the pressure in the structure.

Hydrogen diffusion in La1.5Nd0.5MgNi9 alloy electrodes of the Ni/MH battery

International Nuclear Information System (INIS)

Volodin, A.A.; Denys, R.V.; Tsirlina, G.A.; Tarasov, B.P.; Fichtner, M.; Yartys, V.A.

2015-01-01

Highlights: • Hydrogen diffusion in the La 1.5 Nd 0.5 MgNi 9 alloy electrode was studied. • Various techniques of low amplitude potentiostatic data treatment were used. • D H demonstrates a maximum (2 × 10 −11 cm 2 /s) at 85% of discharge of the electrode. • Maximum is associated with a conversion of β-hydride into a solid α-solution. • Optimization of material and electrode will allow high discharge rates. - Abstract: Hydrogen diffusion in the La 1.5 Nd 0.5 MgNi 9 battery electrode material has been studied using low amplitude potentiostatic experiments. Complex diffusion behavior is examined in frames of electroanalytical models proposed for the lithium intercalation materials. Hydrogen diffusion coefficient D H changes with hydrogen content in the metal hydride anode electrode and has a maximum of ca. 2 × 10 −11 cm 2 /s at ca. 85% of discharge. Such a behavior differs from the trends known for the transport in lithium battery materials, but qualitatively agrees with the data for the highly concentrated β-PdH x

Electrochemical performance of LiNi0.5Mn1.5O4 prepared by improved solid state method as cathode in hybrid supercapacitor

International Nuclear Information System (INIS)

Wu Huiming; Rao, Ch. Venkateswara; Rambabu, B.

2009-01-01

The electrochemical performance of a hybrid asymmetric supercapacitor with activated carbon (AC) as anode and a lithium-ion intercalated compound LiNi 0.5 Mn 1.5 O 4 as cathode was studied. By using metal acetate precursors as starting materials in solid state reaction method, pure LiNi 0.5 Mn 1.5 O 4 was formed at low temperature. The role of precursors on the formation of material at low temperature and short period of time is presented. XRD confirms the cubic spinel structure (space group, Fd3m) and SEM shows the particles of size around 1 μm. The effect of the modified solid state reaction route on the structural and electrochemical properties was investigated. The fabricated hybrid supercapacitor, AC/LiNi 0.5 Mn 1.5 O 4 in a non-aqueous electrolyte 1.0 M LiPF 6 /EC-DMC exhibits a sloping voltage profile from 1.0 to 3.0 V and delivers a specific energy of ca. 56 Wh kg -1 . Moreover, it exhibits excellent cycling performance with less than 5% capacity loss over 1000 cycles.

Analysis of the offshore installations regulations 2005 (SCR05r12) within Brazilian reality; Analise da regulacao das instalacoes offshore 2005 (SCR05r12) dentro da realidade brasileira

Energy Technology Data Exchange (ETDEWEB)

Nalvarte, Gladys; Storch, Rafael; Araujo, Pedro; Oliveira, Luiz Fernando [Det Norske Veritas (Brazil)

2008-07-01

The main motivation for the present study is the modifications presented in the guidance Offshore Installations (Safety Case) Regulations 2005 (SCR05 r12), released by HSE, in relation to the Offshore Installation Regulation 1992, SCR92. A critical analysis of the new regulation issued by HSE is developed and conclusions are obtained. A cost-benefit approach applied to the Quantitative Risk Analysis (QRA), using computational fluid dynamics (CFD) techniques, is suggested. Thereby, a method to identify the mitigation measures that most reduces the risks with the minimum cost is obtained. On the other hand, this new QRA approach combined with a cost benefit analysis is intended to have a total cost diminished. In this case, the cost of the new QRA study is dependant on the number of reevaluations needed to determine the mitigation measures to be applied. (author)

Caries prevalence of 5, 12 and 15-year-old Greek children: a national pathfinder survey.

Science.gov (United States)

Oulis, C J; Tsinidou, K; Vadiakas, G; Mamai-Homata, E; Polychronopoulou, A; Athanasouli, T

2012-03-01

To study the caries prevalence and caries experience of 5, 12 and 15-year-old children in Greece and evaluate how the disease pattern is related to their sociodemographic parameters. A stratified cluster sample of 1209, 1224 and 1257 of five, twelve and fifteen-year-old Greek children were randomly selected according to WHO guidelines for national pathfinder surveys and examined for dental caries, according to the BASCD criteria and standards. d3mft, D3MFT and their components, as well as d3mfs, D3MFS, Care Index (CI) and SiC were recorded and related to the demographic data collected concerning age, gender, counties, urban/rural areas and parents' educational status. Dental caries varied considerably between the different districts, with a mean dmft/DMFT value for each age group being 1.77, 2.05 and 3.19 respectively, while 64%, 37% and 29% of them, were with no obvious dentinal caries. Children living in rural areas demonstrated significantly higher dmft/DMFT values and less dental restorative care (CI), whereas children with fathers of a higher educational level showed significantly lower dmft/DMFT values. The significant caries (SIC) index value for the three age groups was 5.01, 4.83 and 7.07 respectively. Posterior occlusal surfaces of the permanent teeth presented most of the caries in the 12 (68%) and 15-year-old group (78%). Despite the decrease in the prevalence of caries in Greek children disparities remain. Children in rural areas and children with less educated parents had more caries and more untreated caries. All the above call for immediate intervention with comprehensive preventive programs and better geographic targeting of the dental services at a national level including targeted prevention of pit and fissure sealants on posterior permanent molars.

Practice Audit in Gastroenterology (PAGE) program: A novel approach to continuing professional development

Science.gov (United States)

Armstrong, David; Hollingworth, Roger; Gardiner, Tara; Klassen, Michael; Smith, Wendy; Hunt, Richard H; Barkun, Alan; Gould, Michael; Leddin, Desmond

2006-01-01

BACKGROUND: Practice audit is an important component of continuing professional development that may more readily be undertaken if it were less complex. This qualitative study assessed the use of personal digital assistants to facilitate data collection and review. METHODS: Personal digital assistants programmed with standard questionnaires related to upper gastrointestinal endoscopies (Practice Audit in Gastroenterology-Endoscopy [‘PAGE-Endo’]) and colonoscopies (PAGE-Colonoscopy [‘PAGE-Colo’]) were provided to Canadian gastroenterologists, surgeons and internists. Over a three-week audit period, participants recorded indications, and the expected (E) and reported (R) findings for each procedure. Thereafter, participants recorded compliance with reporting, the ease of use and value of the PAGE program, and their willingness to perform another audit. RESULTS: Over 15 to 18 months, 173 participants completed PAGE-Endo (6168 procedures) and 111 completed PAGE-Colo (4776 procedures). Most respondents noted that PAGE was easy to use (99%), beneficial (88% to 95%), and that they were willing undertake another audit (92% to 95%). In PAGE-Endo, alarm features were prevalent (55%), but major reported findings were less common than expected: esophagitis (E 29.9%, R 14.8%), esophageal stricture (E 8.3%, R 3.6%), gastric ulcer (E 17.0%, R 4.7%), gastric cancer (E 4.3%, R 1.0%) and duodenal ulcer (E 11.5%, R 5.7%). In PAGE-Colo, more colonoscopies were performed for symptom investigation (55%) than for screening (25%) or surveillance (20%). There were marked interprovincial variations with respect to sedation, biopsies and technical aspects of colonoscopy. CONCLUSION: Secure, real-time data entry with review of aggregate and individual data in the PAGE program provided an acceptable, straightforward methodology for accredited practice audit activities. PAGE has considerable potential for continuing professional development in gastroenterology and other specialties

Genetic Variability among Lucerne Cultivars Based on Biochemical (SDS-PAGE) and Morphological Markers

Science.gov (United States)

Farshadfar, M.; Farshadfar, E.

The present research was conducted to determine the genetic variability of 18 Lucerne cultivars, based on morphological and biochemical markers. The traits studied were plant height, tiller number, biomass, dry yield, dry yield/biomass, dry leaf/dry yield, macro and micro elements, crude protein, dry matter, crude fiber and ash percentage and SDS- PAGE in seed and leaf samples. Field experiments included 18 plots of two meter rows. Data based on morphological, chemical and SDS-PAGE markers were analyzed using SPSSWIN soft ware and the multivariate statistical procedures: cluster analysis (UPGMA), principal component. Analysis of analysis of variance and mean comparison for morphological traits reflected significant differences among genotypes. Genotype 13 and 15 had the greatest values for most traits. The Genotypic Coefficient of Variation (GCV), Phenotypic Coefficient of Variation (PCV) and Heritability (Hb) parameters for different characters raged from 12.49 to 26.58% for PCV, hence the GCV ranged from 6.84 to 18.84%. The greatest value of Hb was 0.94 for stem number. Lucerne genotypes could be classified, based on morphological traits, into four clusters and 94% of the variance among the genotypes was explained by two PCAs: Based on chemical traits they were classified into five groups and 73.492% of variance was explained by four principal components: Dry matter, protein, fiber, P, K, Na, Mg and Zn had higher variance. Genotypes based on the SDS-PAGE patterns all genotypes were classified into three clusters. The greatest genetic distance was between cultivar 10 and others, therefore they would be suitable parent in a breeding program.

Morphology effect on photocatalytic activity in Bi3Fe0.5Nb1.5O9

Science.gov (United States)

Yin, Xiaofeng; Li, Xiaoning; Gu, Wen; Zou, Wei; Liu, Huan; Zhu, Liuyang; Fu, Zhengping; Lu, Yalin

2018-06-01

In this work, the Aurivillius-phase ferroelectric Bi3Fe0.5Nb1.5O9 were synthesized by hydrothermal (BFNO-H) and solid state methods (BFNO-S), respectively. The BFNO-H shows a hierarchical morphology, which is stacked by intersecting single-crystal nanosheets with {001} and {110} exposed facets, while the BFNO-S shows disorganized micron-scale morphology. BFNO-H shows a much stronger photodegradation activity (10.4 times and 9.8 times) than BFNO-S in the visible-light photodegradation of rhodamine B (RhB) and salicylic acid. The higher photodegradation activity of BFNO-H was firstly ascribed to the hierarchical structure and the larger specific surface area (16.586 m2 g‑1) because a large specific surface area can increase reactive sites and shorten photogenerated carrier migration distance. However, after being normalized by the specific surface area, BFNO-H still performs better than BFNO-S, implying that the specific surface area is not the only factor that determines the photocatalytic activity. Considering that the built-in electric field originating from spontaneous polarization in Bi3Fe0.5Nb1.5O9 has existed in both ab plane and c direction, it matches well with the {001} and {110} exposed facets of BFNO-H nanosheets. This appropriate matching in BFNO-H nanosheets may improve the separation and transmission of photogenerated electron–hole pairs and further enhance its photocatalytic activity. Moreover, the trapping experiments reveals that holes (h +) are the main active species and hole-derived oxidation is the main redox reaction during photodegradation of organic pollutions.

Creating Web Pages Simplified

CERN Document Server

Wooldridge, Mike

2011-01-01

The easiest way to learn how to create a Web page for your family or organization Do you want to share photos and family lore with relatives far away? Have you been put in charge of communication for your neighborhood group or nonprofit organization? A Web page is the way to get the word out, and Creating Web Pages Simplified offers an easy, visual way to learn how to build one. Full-color illustrations and concise instructions take you through all phases of Web publishing, from laying out and formatting text to enlivening pages with graphics and animation. This easy-to-follow visual guide sho

EXCESS MOLAR ENTHALPIES OF 1-OCTENE + DIMETHYLCARBONATE OR DIETHYLCARBONATE OR 1,2-PROPYLCARBONATE AT 363.15 K AND 413.15 K

Directory of Open Access Journals (Sweden)

M. A. KRÄHENBÜHL

1998-03-01

Full Text Available The excess molar enthalpies of 1-octene + dimethylcarbonate or diethylcarbonate or 1,2-propylcarbonate have been measured at two high temperatures 363.15 K and 413.15 K and for pressures varying from 18 to 20 bar with an isothermal flow-calorimeter. All these mixtures have exhibited positive HEm.

CARD15 single nucleotide polymorphisms 8, 12 and 13 are not increased in ethnic Danes with sarcoidosis

DEFF Research Database (Denmark)

Milman, Nils; Nielsen, Ole Haagen; Hviid, Thomas Vauvert F

2007-01-01

and SNP13, respectively, were performed by capillary electrophoresis single-strand confirmation polymorphism in 53 patients with histologically verified sarcoidosis and in 103 healthy controls. RESULTS: The frequencies of CARD15 mutations in sarcoidosis patients were: SNP8, 4/106 chromosomes (3.8%); SNP12...... with Crohn's disease. OBJECTIVES: To evaluate whether ethnic Danes with sarcoidosis have an increased frequency of CARD15 mutations compared to healthy control subjects. METHODS: Genotyping for CARD15 mutations R702W, G908R, and L1007fsinsC, also designated single nucleotide polymorphism (SNP) SNP8, SNP12......, 2/106 chromosomes (1.9%); SNP13, 2/106 chromosomes (1.9%); SNP8+SNP12+SNP13, 8/106 chromosomes (7.6%). All 8 patients were heterozygous. The frequencies in controls were: SNP8, 9/206 chromosomes (4.4%); SNP12, 2/206 chromosomes (1.0%); SNP13, 4/206 chromosomes (1.9%); SNP8+SNP12+SNP13, 15...

Testosterone 15β-hydroxylation by solvent tolerant Pseudomonas putida S12

NARCIS (Netherlands)

Ruijssenaars, H.J.; Sperling, E.M.G.M.; Wiegerinck, P.H.G.; Brands, F.T.L.; Wery, J.; Bont, J.A.M.de

2007-01-01

A steroid 15β-hydroxylating whole-cell solvent tolerant biocatalyst was constructed by expressing the Bacillus megaterium steroid hydroxylase CYP106A2 in the solvent tolerant Pseudomonas putida S12. Testosterone hydroxylation was improved by a factor 16 by co-expressing Fer, a putative Fe-S protein

Flash-Aware Page Replacement Algorithm

Directory of Open Access Journals (Sweden)

Guangxia Xu

2014-01-01

Full Text Available Due to the limited main memory resource of consumer electronics equipped with NAND flash memory as storage device, an efficient page replacement algorithm called FAPRA is proposed for NAND flash memory in the light of its inherent characteristics. FAPRA introduces an efficient victim page selection scheme taking into account the benefit-to-cost ratio for evicting each victim page candidate and the combined recency and frequency value, as well as the erase count of the block to which each page belongs. Since the dirty victim page often contains clean data that exist in both the main memory and the NAND flash memory based storage device, FAPRA only writes the dirty data within the victim page back to the NAND flash memory based storage device in order to reduce the redundant write operations. We conduct a series of trace-driven simulations and experimental results show that our proposed FAPRA algorithm outperforms the state-of-the-art algorithms in terms of page hit ratio, the number of write operations, runtime, and the degree of wear leveling.

The changing pages of comics : Page layouts across eight decades of American superhero comics

NARCIS (Netherlands)

Pederson, Kaitlin; Cohn, Neil

2016-01-01

Page layouts are one of the most overt features of comics’ structure. We hypothesized that American superhero comics have changed in their page layout over eight decades, and investigated this using a corpus analysis of 40 comics from 1940 through 2014. On the whole, we found that comics pages

Study of total seed proteins pattern of sesame (sesamum indicum l.) landraces via sodium dodecyl sulfate polyacrylamide gel electrophoresis (sds-page)

International Nuclear Information System (INIS)

Akbar, F.; Shinwari, Z.K.

2012-01-01

The sesame (Sesamum indicum L.) germplasm, comprising of 105 accessions was characterized for total seed storage proteins using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). The germplasm was collected from diverse agro-ecological regions of Pakistan. To our information, no studies have yet been carried out in Pakistan on the genetic evaluation of sesame genotypes based on total seed protein. Total seed proteins were electrophoretically separated on 12% polyacrylamide gels by standard protocols. A total of 20 polypeptide bands were observed, of which 14 (70%) were polymorphic and 6 (30%) were monomorphic, with molecular weight ranging from 13.5 to 100 kDa. Six bands i.e., 7, 11, 12, 15, 16 and 18 were common in all genotypes. Similarity coefficients varied fro m 0.50 to 1.00. The dendrogram based on dissimilarity matrix using unweighted pair group method with arithmetic averages (UPGMA) separated all sesame accessions into three main groups i.e., A, B, C, comprising 89, 14 and 2 genotypes, respectively. Overall a low to medium level of genetic variability was observed for SDS-PAGE (single dimension). As SDS-PAGE alone did not reveal high level of genetic variability, hence 2-D gel electrophoresis along with other advanced type DNA markers and more number of sesame accessions from all over the country are recommended for the future genetic evaluation. Our investigation will significantly support the classification, development, genetic evaluation and conservation of sesame germplasm in Pakistan. (author)

Study of total seed proteins pattern of sesame (sesamum indicum l.) landraces via sodium dodecyl sulfate polyacrylamide gel electrophoresis (sds-page)

Energy Technology Data Exchange (ETDEWEB)

Akbar, F; Shinwari, Z K [Quaid-e-Azam University, Islamabad (Pakistan). Dept. of Biotechnology; Yousif, N; Masood, M S [Institute of Agri-Biotechnology and Genetic Resources, Islamabad (Pakistan)

2012-11-15

The sesame (Sesamum indicum L.) germplasm, comprising of 105 accessions was characterized for total seed storage proteins using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). The germplasm was collected from diverse agro-ecological regions of Pakistan. To our information, no studies have yet been carried out in Pakistan on the genetic evaluation of sesame genotypes based on total seed protein. Total seed proteins were electrophoretically separated on 12% polyacrylamide gels by standard protocols. A total of 20 polypeptide bands were observed, of which 14 (70%) were polymorphic and 6 (30%) were monomorphic, with molecular weight ranging from 13.5 to 100 kDa. Six bands i.e., 7, 11, 12, 15, 16 and 18 were common in all genotypes. Similarity coefficients varied fro m 0.50 to 1.00. The dendrogram based on dissimilarity matrix using unweighted pair group method with arithmetic averages (UPGMA) separated all sesame accessions into three main groups i.e., A, B, C, comprising 89, 14 and 2 genotypes, respectively. Overall a low to medium level of genetic variability was observed for SDS-PAGE (single dimension). As SDS-PAGE alone did not reveal high level of genetic variability, hence 2-D gel electrophoresis along with other advanced type DNA markers and more number of sesame accessions from all over the country are recommended for the future genetic evaluation. Our investigation will significantly support the classification, development, genetic evaluation and conservation of sesame germplasm in Pakistan. (author)

Low-Temperature Bonding of Bi0.5Sb1.5Te3 Thermoelectric Material with Cu Electrodes Using a Thin-Film In Interlayer

Science.gov (United States)

Lin, Yan-Cheng; Yang, Chung-Lin; Huang, Jing-Yi; Jain, Chao-Chi; Hwang, Jen-Dong; Chu, Hsu-Shen; Chen, Sheng-Chi; Chuang, Tung-Han

2016-09-01

A Bi0.5Sb1.5Te3 thermoelectric material electroplated with a Ni barrier layer and a Ag reaction layer was bonded with a Ag-coated Cu electrode at low temperatures of 448 K (175 °C) to 523 K (250 °C) using a 4- μm-thick In interlayer under an external pressure of 3 MPa. During the bonding process, the In thin film reacted with the Ag layer to form a double layer of Ag3In and Ag2In intermetallic compounds. No reaction occurred at the Bi0.5Sb1.5Te3/Ni interface, which resulted in low bonding strengths of about 3.2 MPa. The adhesion of the Bi0.5Sb1.5Te3/Ni interface was improved by precoating a 1- μm Sn film on the surface of the thermoelectric element and preheating it at 523 K (250 °C) for 3 minutes. In this case, the bonding strengths increased to a range of 9.1 to 11.5 MPa after bonding at 473 K (200 °C) for 5 to 60 minutes, and the shear-tested specimens fractured with cleavage characteristics in the interior of the thermoelectric material. The bonding at 448 K (175 °C) led to shear strengths ranging from 7.1 to 8.5 MPa for various bonding times between 5 and 60 minutes, which were further increased to the values of 10.4 to 11.7 MPa by increasing the bonding pressure to 9.8 MPa. The shear strengths of Bi0.5Sb1.5Te3/Cu joints bonded with the optimized conditions of the modified solid-liquid interdiffusion bonding process changed only slightly after long-term exposure at 473 K (200 °C) for 1000 hours.

Microstructure and Properties of a Refractory NbCrMo0.5Ta0.5TiZr Alloy (Postprint)

Science.gov (United States)

2014-04-01

vacuum arc melting. To close shrinkage porosity, it was hot isostatically pressed (HIPd) at T = 1723K and P = 207MPa for 3 h. In both as-solidified and...Acknowledgements Discussions with Drs. D.M. Dimiduk, F. Meisenkothen, D.B. Mira- cle, T.A. Parthasarathy, A.A. Salem , G.B. Viswanathan, and G.B...en.wikipedia.org/wiki/Hardnesses of the elements (data page). 15] Chr. Herzig, U. Kohler, S.V. Divinski, J. Appl . Phys. 85 (1999) 8119–8130. 16] R.E

Chemical, physical, profile and other oceanographic data collected aboard the Brooks McCall in the Gulf of Mexico from 2010-05-07 to 2010-05-12 in response to the Deepwater Horizon Oil Spill event (NODC Accession 0084555)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Chemical, physical, profile, tows and underway oceanographic data were collected aboard the Brooks McCall in the Gulf of Mexico from 2010-05-07 to 2010-05-12 in...

Measurements of neutron spectra produced from a thick tungsten target bombarded with 0.5- and 1.5-GeV protons

International Nuclear Information System (INIS)

Meigo, Shin-ichiro; Takada, Hiroshi

2002-01-01

For validation of calculation codes that are employed in the design of pulse spallation neutron source and accelerator driven system, spectrum of neutrons produced from a thick target plays an important role. However, appropriate experimental data were scarce for the incident energies higher than 0.8 GeV. In this study, the spectrum from a thick tungsten target was measured. The experiment was carried out at the π2 beam line of the 12-GeV proton synchrotron at KEK. The tungsten target was bombarded by the 0.5- and 1.5-GeV secondary protons. Spectrum of neutrons was measured by the time-of-flight technique using organic scintillators of NE213. The calculated result with NMTC/JAM and MCNP-4A is compared with the measured data. It is found that the NMTC/JAM generally gives a good agreement with experiment. The NMTC/JAM, however, gives 50% lower neutron flux in the energy region 20∼80 MeV, which is consistent with the results in previous comparison of lead target. For the neutrons between 20 and 80 MeV, the calculation using with the in-medium nucleon-nucleon cross sections reproduced the experiment fairly well. (author)

Neutron diffraction and thermoelectric properties of indium filled In{sub x}Co{sub 4}Sb{sub 12} (x = 0.05, 0.2) and indium cerium filled Ce{sub 0.05}In{sub 0.1}Co{sub 4}Sb{sub 12} skutterudites

Energy Technology Data Exchange (ETDEWEB)

Sesselmann, Andreas [Institute of Materials Research, German Aerospace Center (DLR), Linder Hoehe, 51147 Koeln (Germany); Klobes, Benedikt [Juelich Centre for Neutron Science JCNS und Peter Gruenberg Institute PGI, JARA-FIT, Forschungszentrum Juelich GmbH, 52425 Juelich (Germany); Dasgupta, Titas [Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology, Mumbai (India); Gourdon, Olivier [Los Alamos National Laboratory, LANSCE, Los Alamos, New Mexico 87545 (United States); Hermann, Raphael [Juelich Centre for Neutron Science JCNS und Peter Gruenberg Institute PGI, JARA-FIT, Forschungszentrum Juelich GmbH, 52425 Juelich (Germany); Faculte des Sciences, Universite de Liege, 4000 Liege (Belgium); Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); Mueller, Eckhard [Institute of Materials Research, German Aerospace Center (DLR), Linder Hoehe, 51147 Koeln (Germany); Institute of Inorganic and Analytical Chemistry, Justus Liebig University, Heinrich-Buff-Ring 58, 35392 Giessen (Germany)

2016-03-15

The thermoelectric properties on polycrystalline single (In) and double filled (Ce, In) skutterudites are characterized between 300 and 700 K. Powder neutron diffraction measurements of the skutterudite compositions In{sub x}Co{sub 4}Sb{sub 12} (x = 0.05, 0.2) and Ce{sub 0.05}In{sub 0.1}Co{sub 4}Sb{sub 12} as a function of temperature (12-300 K) were carried out, which gives more insight into the structural data of single and double-filled skutterudites. Results show that due to the annealing treatment, a Sb deficiency is detectable and thus verifies defects at the Sb lattice site of the skutterudite. Furthermore, we show by electron microprobe analysis that a considerable amount of indium is lost during synthesis and post-processing for the single indium filled samples, but not for the double cerium and indium skutterudite sample. In our experiments, the double-filled skutterudite is superior to the single-filled skutterudite composition due to a higher charge carrier density, a comparable lattice thermal resistivity, and a higher density of states effective mass. Furthermore, we obtained a significantly higher Einstein temperature for the double-filled skutterudite composition in comparison to the single-filled species, which reflects the high sensitivity due to filling of the void lattice position within the skutterudite crystal. (copyright 2015 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

High performance LiNi0.5Mn1.5O4 cathode by Al-coating and Al3+-doping through a physical vapor deposition method

International Nuclear Information System (INIS)

Sun, Peng; Ma, Ying; Zhai, Tianyou; Li, Huiqiao

2016-01-01

Highlights: • Metal Al was used as an electrical conductive coating material for LiNi 0.5 Mn 1.5 O 4 . • The uniform surface coating layer of metal Al was successfully achieved with adjusted thickness through a physical vapor deposition technology. • Al 3+ -doped LiNi 0.5 Mn 1.5 O 4 can be easily obtained by further directly annealing of Al-coated LiNi 0.5 Mn 1.5 O 4 in air. • The conductive Al-coating layer can greatly improve the rate performance and cycle stability of LiNi 0.5 Mn 1.5 O 4 . - Abstract: In this work, spinel LiNi 0.5 Mn 1.5 O 4 (LNMO) hollow microspheres are synthesized by an impregnation method using microsphere MnO 2 as both the precursor and template. To enhance the electrical conductivity of LNMO, metal Al was employed for the first time as a coating material for LNMO. Though an Electron-beam Vapor Deposition approach, the surface of LNMO can be easily coated by a tight layer of Al nanoparticles with adjusted thickness. Further annealing the Al-coated sample at 800 °C in air, the Al 3+ -doped LNMO can be obtained. The effects of Al-coating and Al 3+ -doping on the sample morphology and structure are investigated by SEM, TEM, XRD and FT-IR. The electrochemical properties of Al-coated LNMO and Al 3+ -doped LNMO are measured with comparison of bare LNMO by charge/discharge tests and electrochemical impedance spectroscopy (EIS). The results show that both Al-coating and Al 3+ -doping can greatly enhance the cycle performance and rate capability of LNMO. Especially for Al-coated LNMO, it shows the lowest battery impedance due to the existence of conductive Al coating layer, thus delivers the best rate performance among the three. The physical coating procedure used in this work may provide a new facile modification approach for other cathode materials.

Realistic page-turning of electronic books

Science.gov (United States)

Fan, Chaoran; Li, Haisheng; Bai, Yannan

2014-01-01

The booming electronic books (e-books), as an extension to the paper book, are popular with readers. Recently, many efforts are put into the realistic page-turning simulation o f e-book to improve its reading experience. This paper presents a new 3D page-turning simulation approach, which employs piecewise time-dependent cylindrical surfaces to describe the turning page and constructs smooth transition method between time-dependent cylinders. The page-turning animation is produced by sequentially mapping the turning page into the cylinders with different radii and positions. Compared to the previous approaches, our method is able to imitate various effects efficiently and obtains more natural animation of turning page.

On Page Rank

NARCIS (Netherlands)

Hoede, C.

In this paper the concept of page rank for the world wide web is discussed. The possibility of describing the distribution of page rank by an exponential law is considered. It is shown that the concept is essentially equal to that of status score, a centrality measure discussed already in 1953 by

Quantitative analysis of magnetic resonance imaging susceptibility artifacts caused by neurosurgical biomaterials. Comparison of 0.5, 1.5, and 3.0 tesla magnetic fields

International Nuclear Information System (INIS)

Matsuura, Hideki; Inoue, Takashi; Ogasawara, Kuniaki; Sasaki, Makoto; Konno, Hiromu; Kuzu, Yasutaka; Nishimoto, Hideaki; Ogawa, Akira

2005-01-01

Magnetic resonance (MR) imaging is an important diagnostic tool for neurosurgical diseases but susceptibility artifacts caused by biomaterial instrumentation frequently causes difficulty in visualizing postoperative changes. The susceptibility artifacts caused by neurosurgical biomaterials were compared quantitatively by 0.5, 1.5, and 3.0 Tesla MR imaging. MR imaging of uniform size and shape of pieces ceramic (zirconia), pure titanium, titanium alloy, and cobalt-based alloy was performed at 0.5, 1.5, and 3.0 Tesla. A linear region of interest was defined across the center of the biomaterial in the transverse direction, and the susceptibility artifact diameter was calculated. Susceptibility artifacts developed around all biomaterials at all magnetic field strengths. The artifact diameters caused by pure titanium, titanium alloy, and cobalt-based alloy increased in the order of 0.5, 1.5, to 3.0 Tesla magnetic fields. The artifact diameter of ceramic was not influenced by magnetic field strength, and was the smallest of all biomaterials at all magnetic field strengths. The artifacts caused by biomaterials except ceramic increase with the magnetic field strength. Ceramic instrumentation will minimize artifacts in all magnetic fields. (author)

PageRank of integers

International Nuclear Information System (INIS)

Frahm, K M; Shepelyansky, D L; Chepelianskii, A D

2012-01-01

We up a directed network tracing links from a given integer to its divisors and analyze the properties of the Google matrix of this network. The PageRank vector of this matrix is computed numerically and it is shown that its probability is approximately inversely proportional to the PageRank index thus being similar to the Zipf law and the dependence established for the World Wide Web. The spectrum of the Google matrix of integers is characterized by a large gap and a relatively small number of nonzero eigenvalues. A simple semi-analytical expression for the PageRank of integers is derived that allows us to find this vector for matrices of billion size. This network provides a new PageRank order of integers. (paper)

The Faculty Web Page: Contrivance or Continuation?

Science.gov (United States)

Lennex, Lesia

2007-01-01

In an age of Internet education, what does it mean for a tenure/tenure-track faculty to have a web page? How many professors have web pages? If they have a page, what does it look like? Do they really need a web page at all? Many universities have faculty web pages. What do those collective pages look like? In what way do they represent the…

If You Build (and Moderate) It, They Will Come: The Smokefree Women Facebook Page

Science.gov (United States)

2013-01-01

This analysis explores the impact of modifying the Smokefree Women Facebook social media strategy, from primarily promoting resources to encouraging participation in communications about smoking cessation by posting user-generated content. Analyses were performed using data from the Smokefree Women Facebook page to assess the impact of the revised strategy on reach and engagement. Fan engagement increased 430%, and a strong and statistically significant correlation (P < .05) between the frequency of moderator posts and community engagement was observed. The reach of the page also increased by 420%. Our findings indicate that the strategy shift had a statistically significant and positive effect on the frequency of interactions on the Facebook page, providing an example of an approach that may prove useful for reaching and engaging users in online communities. Additional research is needed to assess the association between engagement in virtual communities and health behavior outcomes. PMID:24395993

Effect of temperature on the electronic/ionic transport properties of porous LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} with high voltage for lithium ion batteries

Energy Technology Data Exchange (ETDEWEB)

Cui, Yongli, E-mail: lilyshuoxu@163.com; Wang, Mingzhen; Wang, Jiali; Zhuang, Quanchao, E-mail: zhuangquanchao@126.com

2016-09-01

Porous spinel LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} microspheres were successfully synthesized by a facile method with microspheres MnCO{sub 3} template, and characterized by XRD and SEM. The as-synthesized porous LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} microspheres exhibit high rate capability and good cycle performance, with the specific discharge capacity of 125.5, 125.4, 121 and 97.6 mA h/g at 1, 2, 3 and 5 C, respectively, and the capacity retention of 85.6% at 5 C after 100 cycles, which are attributed to the porous structure. It is found that the EIS features of spinel LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} cathode are related to the temperature, and the middle to high frequency arc is observed in the Nyquist diagram at temperatures below zero, which is attributed to the electronic properties of the electrode material. In 1 mol/L LiPF{sub 6}-EC:DEC:DMC electrolyte solutions, the energy barriers for the ion jump related to migration of lithium ions through the SEI film of the spinel LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} cathode are determined to be 16.89 kJ/mol, the thermal activation energy of the electronic conductivity to be 0.348 eV, and the intercalation-deintercalation reaction activation energies to be 0.619 eV, respectively. - Highlights: • Porous spinel LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} microspheres cathode were synthesized. • Porous LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} microspheres show high rate and excellent cycle characteristic. • The EIS features of spinel LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} have related to temperature. • Three different energies of kinetic characterization at 4.7 V are calculated.

Research of Subgraph Estimation Page Rank Algorithm for Web Page Rank

Directory of Open Access Journals (Sweden)

LI Lan-yin

2017-04-01

Full Text Available The traditional PageRank algorithm can not efficiently perform large data Webpage scheduling problem. This paper proposes an accelerated algorithm named topK-Rank，which is based on PageRank on the MapReduce platform. It can find top k nodes efficiently for a given graph without sacrificing accuracy. In order to identify top k nodes，topK-Rank algorithm prunes unnecessary nodes and edges in each iteration to dynamically construct subgraphs，and iteratively estimates lower/upper bounds of PageRank scores through subgraphs. Theoretical analysis shows that this method guarantees result exactness. Experiments show that topK-Rank algorithm can find k nodes much faster than the existing approaches.

Magnetoelectric effect of (1−x) Ba{sub 0.5}Sr{sub 0.5}Zr{sub 0.5}Ti{sub 0.5}O{sub 3}+(x) Ni{sub 0.12}Mg{sub 0.18}Cu{sub 0.2}Zn{sub 0.5}Fe{sub 2}O{sub 4} composites

Energy Technology Data Exchange (ETDEWEB)

Rahaman, Md. D., E-mail: dalilurrahaman1976@gmail.com [Department of Physics, University of Dhaka, Dhaka-1000 (Bangladesh); Saha, S.K.; Ahmed, T.N. [Department of Physics, University of Dhaka, Dhaka-1000 (Bangladesh); Department of Physics, Bangladesh University of Engineering and Technology, Dhaka 1000 (Bangladesh); Saha, D.K. [Materials Science Division, Atomic Energy Centre, PO Box 164, Dhaka 1000 (Bangladesh); Hossain, A.K.M. Akther [Department of Physics, Bangladesh University of Engineering and Technology, Dhaka 1000 (Bangladesh)

2014-12-15

The magnetoelectric composites with chemical compositions (1−x) Ba{sub 0.5}Sr{sub 0.5}Zr{sub 0.5}Ti{sub 0.5}O{sub 3}+(x) Ni{sub 0.12}Mg{sub 0.18}Cu{sub 0.2}Zn{sub 0.5}Fe{sub 2}O{sub 4} (x=20, 40, 60 and 80 wt%) was prepared by the conventional solid state reaction method. The presence of a biphase composition was confirmed by X-ray diffraction while the microstructure of the composites was studied by scanning electron microscopy revealing a good mixing of the two phases and a good densification of the bulk ceramics. The dielectric dispersion is observed at lower frequencies due to interfacial polarization arising from the interface of the two phases. At higher frequencies, the dielectric constant is almost constant due to the inability of electric dipoles to follow the first variation of the alternating applied electric field. The dielectric loss shows maxima which are attributed when the hopping frequency of electrons between different ionic sites becomes nearly equal to the frequency of the applied field. The linearity in the log(σ{sub AC}) vs. log(ω{sup 2}) plots confirmed the small polaron hopping type of conduction mechanism. The composite materials are found to exhibit an excellent frequency dependence of magnetic properties. In the high frequency range, with increasing ferrite concentration the initial permeability increases and cut-off frequency decreases. An optimal magnetoelectric coupling responding voltage of about 600 μV cm{sup −1} Oe{sup −1} is obtained for x=20 wt% at room temperature. - Highlights: • XRD patterns confirmed the coexistence of ferroelectric and ferrimagnetic phases. • Dielectric dispersion observed at low frequencies due to interfacial polarization. • Linearity in logσ{sub ac} vs. logω{sup 2} is due to small polaron hopping mechanism. • Maximum ME voltage coefficient 600 μV cm{sup −1} Oe{sup −1} observed for 20% of ferrite.

Page sample size in web accessibility testing: how many pages is enough?

NARCIS (Netherlands)

Velleman, Eric Martin; van der Geest, Thea

2013-01-01

Various countries and organizations use a different sampling approach and sample size of web pages in accessibility conformance tests. We are conducting a systematic analysis to determine how many pages is enough for testing whether a website is compliant with standard accessibility guidelines. This

Excess molar volume and viscosity deviation for binary mixtures of polyethylene glycol dimethyl ether 250 with 1,2-alkanediols (C3-C6) at T = (293.15 to 323.15) K

International Nuclear Information System (INIS)

Parsa, Jalal Basiri; Haghro, Mahdieh Farshbaf

2008-01-01

In this work, density and viscosity have been determined for (polyethylene glycol dimethyl ether 250 + 1,2-propanediol, or 1,2-butanediol, or 1,2-pentanediol, or 1,2-hexanediol) binary systems over the whole concentration range at temperatures of (293.15, 303.15, 313.15, 323.15) K and atmospheric pressure. Experimental data of mixtures were used to calculate the excess molar volumes V E , and viscosity deviations Δη. These results were fitted by the Redlich-Kister polynomial relation to obtain the coefficients and standard deviations

Ca{sub 2}Cr{sub 0.5}Ga{sub 1.5}O{sub 5}—An extremely redox-stable brownmillerite phase

Energy Technology Data Exchange (ETDEWEB)

Luo, Kun; Amano Patino, Midori; Hayward, Michael A., E-mail: michael.hayward@chem.ox.ac.uk

2015-02-15

Investigation of the Ca{sub 2}Cr{sub x}Ga{sub 2−x}O{sub 5} compositional series reveals a maximum chromium solubility of 25%. The most chromium rich composition, Ca{sub 2}Cr{sub 0.5}Ga{sub 1.5}O{sub 5}, adopts a brownmillerite-type anion deficient perovskite structure described in space group Pnma (a=5.368 Å, b=14.547 Å, c=5.593 Å). Neutron powder diffraction data reveals rigorous B-site cation order, with all of the tetrahedral coordination sites occupied exclusively by gallium and the octahedral coordination sites occupied by gallium or chromium. Annealing studies reveals Ca{sub 2}Cr{sub 0.5}Ga{sub 1.5}O{sub 5} is stable in both oxidizing (100% O{sub 2}) and reducing (5% H{sub 2} in N{sub 2}) conditions up to 800 °C, suggesting it could find application as a stable host lattice for fuel cell electrodes or electrolytes with suitable doping to enhance catalytic behaviour and/or anionic conductivity. - Graphical abstract: Ca{sub 2}Cr{sub 0.5}Ga{sub 1.5}O{sub 5}, adopts a brownmillerite-type anion deficient perovskite structure yet it is stable in both oxidizing (100% O{sub 2}) and reducing (5% H{sub 2} in N{sub 2}) conditions up to 800 °C. - Highlights: • Anion deficient oxide stable to both oxidation and reduction up to 800 °C. • Cation-ordered brownmillerite structure determined by powder neutron diffraction. • Low solubility of Cr{sup 3+} in framework due to spherical d{sup 3} electron configuration.

Improve electrochemical performance of CeO2 surface modification LiNi0.80Co0.15Al0.05O2 cathode material

Science.gov (United States)

Xia, Shubiao; Zhang, Yingjie; Dong, Peng; Zhang, Yannan

2014-06-01

Lithium ion battery cathode material LiNi0.8Co0.15Al0.05O2 cathode has successfully prepared by co-precipitation. CeO2 surface modification has improved LiNi0.80Co0.15Al0.05O2 electrochemical performance use sol-gel method and subsequent heat treatment at 600 °C for 5 h. Different to other conventional coating material, CeO2 coating layer can not only inhibit the reaction of the electrode and the electrolyte, but also can reduce the impedance of electron transfer due to its high conductivity, and inhibit the production of Ni2+ because of its high oxidation. The surface-modified and pristine LiNi0.80Co0.15Al0.05O2 powders are characterized by XRD, SEM, TEM, XPS, CV and DSC. When CeO2 coating is 0.02% (mole ratio), contrast to pristine NCA, the CeO2-coated NCA cathode exhibits no decrease in its initial specific capacity of 184 mAh g -1 (at 0.2 C) and excellent capacity retention (86% of its initial capacity at 1 C) between 2.75 and 4.3 V after 100 cycles. The results indicate that the CeO2 surface treatment should be an effective way to improve cycle properties due to CeO2 inhibit the electrodes and the electrolyte side effects.

Enhanced electrical properties, color-tunable up-conversion luminescence, and temperature sensing behaviour in Er-doped Bi3Ti1.5W0.5O9 multifunctional ferroelectric ceramics

Science.gov (United States)

Zhang, Ying; Li, Jun; Chai, Xiaona; Wang, Xusheng; Li, Yongxiang; Yao, Xi

2017-03-01

Er-doped Bi3Ti1.5W0.5O9 (BTW-x) ferroelectric ceramics were prepared by a conventional solid-state reaction synthesis method, and their structure, electrical properties, up-conversion (UC) luminescence, and temperature sensing behaviour were investigated. A high piezoelectric coefficient d33 (9.6 pC/N), a large remnant polarization Pr (12.75 μC/cm2), a high Curie temperature Tc (730.2 °C), and the optimal luminescent intensity are obtained for the samples at x = 0.05. By changing the Er doped concentration, the BTW-x ceramics are capable of generating various UC spectra and the color could be tunable from green to yellow. According to the fluorescence intensity ratio of green emissions at 532.6 nm and 549.2 nm in the temperature range from 83 K to 423 K, optical temperature sensing properties are investigated and the maximum sensing sensitivity is found to be 0.00314 K-1 at 423 K. The results conclude that BTW-x would be a candidate in high temperature sensor, fluorescence thermometry, and opto-electronic integration applications.

Search for unbound 15Be states in the 3 n +12Be channel

Science.gov (United States)

Kuchera, A. N.; Spyrou, A.; Smith, J. K.; Baumann, T.; Christian, G.; DeYoung, P. A.; Finck, J. E.; Frank, N.; Jones, M. D.; Kohley, Z.; Mosby, S.; Peters, W. A.; Thoennessen, M.

2015-01-01

Background: 15Be is expected to have low-lying 3 /2+ and 5 /2+ states. A first search did not find the 3 /2+ [A. Spyrou et al., Phys. Rev. C 84, 044309 (2011), 10.1103/PhysRevC.84.044309]; however, a resonance in 15Be was populated in a second attempt and determined to be unbound with respect to 14Be by 1.8(1) MeV with a tentative spin-parity assignment of 5 /2+ [J. Snyder et al., Phys. Rev. C 88, 031303(R) (2013), 10.1103/PhysRevC.88.031303]. Purpose: Search for the predicted 15Be 3 /2+ state in the three-neutron decay channel. Method: A two-proton removal reaction from a 55 MeV/u 17C beam was used to populate neutron-unbound states in 15Be. The two-, three-, and four-body decay energies of the 12Be + neutron(s) detected in coincidence were reconstructed using invariant mass spectroscopy. Monte Carlo simulations were performed to extract the resonance and decay properties from the observed spectra. Results: The low-energy regions of the decay energy spectra can be described with the first excited unbound state of 14Be (Ex=1.54 MeV, Er=0.28 MeV). Including a state in 15Be that decays through the first excited 14Be state slightly improves the fit at higher energies though the cross section is small. Conclusions: A 15Be component is not needed to describe the data. If the 3 /2+ state in 15Be is populated, the decay by three-neutron emission through 14Be is weak, ≤11 % up to 4 MeV. In the best fit, 15Be is unbound with respect to 12Be by 1.4 MeV (unbound with respect to 14Be by 2.66 MeV) with a strength of 7 % .

Role of endoplasmic reticulum stress in 12/15-lipoxygenase-induced retinal microvascular dysfunction in a mouse model of diabetic retinopathy.

Science.gov (United States)

Elmasry, Khaled; Ibrahim, Ahmed S; Saleh, Heba; Elsherbiny, Nehal; Elshafey, Sally; Hussein, Khaled A; Al-Shabrawey, Mohamed

2018-05-01

Our earlier studies have established the role of 12/15-lipoxygenase (LO) in mediating the inflammatory reaction in diabetic retinopathy. However, the exact mechanism is still unclear. The goal of the current study was to identify the potential role of endoplasmic reticulum (ER) stress as a major cellular stress response in the 12/15-LO-induced retinal changes in diabetic retinopathy. We used in vivo and in vitro approaches. For in vivo studies, experimental diabetes was induced in wild-type (WT) mice and 12/15-Lo (also known as Alox15) knockout mice (12/15-Lo -/- ); ER stress was then evaluated after 12-14 weeks of diabetes. We also tested the effect of intravitreal injection of 12-hydroxyeicosatetraenoic acid (HETE) on retinal ER stress in WT mice and in mice lacking the catalytic subunit of NADPH oxidase, encoded by Nox2 (also known as Cybb) (Nox2 -/- mice). In vitro studies were performed using human retinal endothelial cells (HRECs) treated with 15-HETE (0.1 μmol/l) or vehicle, with or without ER stress or NADPH oxidase inhibitors. This was followed by evaluation of ER stress response, NADPH oxidase expression/activity and the levels of phosphorylated vascular endothelial growth factor receptor-2 (p-VEGFR2) by western blotting and immunoprecipitation assays. Moreover, real-time imaging of intracellular calcium (Ca 2+ ) release in HRECs treated with or without 15-HETE was performed using confocal microscopy. Deletion of 12/15-Lo significantly attenuated diabetes-induced ER stress in mouse retina. In vitro, 15-HETE upregulated ER stress markers such as phosphorylated RNA-dependent protein kinase-like ER-regulated kinase (p-PERK), activating transcription factor 6 (ATF6) and protein disulfide isomerase (PDI) in HRECs. Inhibition of ER stress reduced 15-HETE-induced-leucocyte adhesion, VEGFR2 phosphorylation and NADPH oxidase expression/activity. However, inhibition of NADPH oxidase or deletion of Nox2 had no effect on ER stress induced by the 12/15-LO

Temperature-dependent and anisotropic optical response of layered Pr0.5Ca1.5MnO4 probed by spectroscopic ellipsometry

NARCIS (Netherlands)

Majidi, M. A.; Thoeng, E.; Gogoi, P. K.; Wendt, F.; Wang, S. H.; Santoso, I.; Asmara, T. C.; Handayani, I. P.; van Loosdrecht, P. H. M.; Nugroho, A. A.; Ruebhausen, M.; Rusydi, A.; Rübhausen, M.

2013-01-01

We study the temperature dependence as well as anisotropy of optical conductivity (sigma(1)) in the pseudocubic single crystal Pr0.5Ca1.5MnO4 using spectrocopic ellipsometry. Three transition temperatures are observed and can be linked to charge-orbital (T-CO/OO similar to 320 K),

Crystal structure of Ga{sub 0.5}In{sub 1.5}Se{sub 3} solid solution

Energy Technology Data Exchange (ETDEWEB)

Akhmedova, S. I., E-mail: seva-ahmed@mail.ru; Asadov, Yu. G.; Guseinov, G. G. [Azerbaijan National Academy of Sciences, Institute of Physics (Azerbaijan)

2016-01-15

A solid solution of the GaIn{sub 3}Se{sub 6} (2Ga{sub 0.5}In{sub 1.5}Se{sub 3}) composition with a hexagonal lattice (a = 7.051(3) Å, c = 19.148(2) Å, sp. gr. P6{sub 1}, z = 6, V = 824.4332(4) Å{sup 3}, ρ = 5.379(2) g/cm{sup 3}) has been synthesized as a result of alloying Ga, In, and Se elements with a metal ratio of 1: 3. It was established that six out of nine In atoms in the lattice are located in a trigonal bipyramid, while the other three In atoms and three Ga atoms have a tetrahedral coordination.

Effects of flux additives on the characteristics of Y2.95Al5O12:0.05Ce3+ phosphor: Particle growth mechanism and luminescence

International Nuclear Information System (INIS)

Chiang, Chung-Hao; Liu, Te-Hsing; Lin, Han-Yu; Kuo, Hung-Yi; Chu, Sheng-Yuan

2013-01-01

The dependence of the amount of the BaF 2 flux additive on the luminescence of Y 2.95 Al 5 O 12 :0.05Ce 3+ phosphors was investigated. The integrated emission intensity of Y 2.95 Al 5 O 12 :0.05Ce 3+ prepared without the flux was enhanced by 29% with the addition of BaF 2 flux at the optimum amount of 6 wt. %. Such an enhancement can be attributed to the purer phase of Y 3 Al 5 O 12 and the morphology change from the irregular shape to spherical shape with the smoother surface due to the flux. The morphology and luminescence of Y 2.95 Al 5 O 12 :0.05Ce 3+ prepared with the 6 wt. % BaF 2 flux additive (Sample II) were further compared with those of Y 2.95 Al 5 O 12 :0.05Ce 3+ prepared with the 7 wt. % H 3 BO 3 flux additive (Sample I). The particle size, particle shape, and integrated emission intensity (λ ex  = 450 nm) of the former were found to be larger, more regular, and 6% higher than those of the latter. The difference in the morphology of Samples I and II, which led to the difference in the emission intensity and the external quantum efficiency, were well explained by the particle growth mechanism

Martensitic transformation and mechanical properties of Ni{sub 49+x}Mn{sub 36–x}In{sub 15} (x=0, 0.5, 1.0, 1.5 and 2.0) alloys

Energy Technology Data Exchange (ETDEWEB)

Zhou, Le; Mehta, Abhishek [Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, FL, 32816 (United States); Giri, Anit [TKC Global, 13873 Park Center Road, Herndon, VA 20171 (United States); Weapons and Materials Research Directorate, US Army Research Laboratory, Aberdeen Proving Ground, MD 21005 (United States); Cho, Kyu [Weapons and Materials Research Directorate, US Army Research Laboratory, Aberdeen Proving Ground, MD 21005 (United States); Sohn, Yongho, E-mail: Yongho.Sohn@ucf.edu [Department of Materials Science and Engineering and Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, FL, 32816 (United States)

2015-10-14

Five polycrystalline Ni{sub 49+x}Mn{sub 36–x}In{sub 15} (x=0, 0.5, 1.0, 1.5 and 2) alloys were prepared by triple arc-melting and examined to understand their martensitic transformation and mechanical properties. Martensitic transformation temperatures were determined by differential scanning calorimetry (DSC) and observed to increase with increasing Ni content. Powder X-ray diffraction (XRD) and transmission electron microscopy (TEM) showed that Ni{sub 49}Mn{sub 36}In{sub 15} is austenitic at room temperature while modulated 7M martensitic structure was observed in other alloys. Different twinning relationships between martensitic variants were revealed by TEM. Reduced elastic modulus and hardness were measured by nanoindentation. For the martensites, the reduced elastic modulus increased as the e/a increases, while hardness did not vary. The austenitic phase exhibited a lower reduced elastic modulus and hardness. A larger scatter in the reduced elastic modulus and hardness was observed for the martensitic phase in conjunction with variants of different orientation. The martensitic transformation behavior and nanoindentation results were also compared with Ni{sub 53+x}Mn{sub 22–x}Ga{sub 25} (x=0.5, 1.0, 1.8 and 2.5) alloys. For both Ni–Mn–In and Ni–Mn–Ga alloys, the martensitic transformation temperature and reduced elastic modulus increased as the e/a ratio increased.

Exploiting link structure for web page genre identification

KAUST Repository

Zhu, Jia

2015-07-07

As the World Wide Web develops at an unprecedented pace, identifying web page genre has recently attracted increasing attention because of its importance in web search. A common approach for identifying genre is to use textual features that can be extracted directly from a web page, that is, On-Page features. The extracted features are subsequently inputted into a machine learning algorithm that will perform classification. However, these approaches may be ineffective when the web page contains limited textual information (e.g., the page is full of images). In this study, we address genre identification of web pages under the aforementioned situation. We propose a framework that uses On-Page features while simultaneously considering information in neighboring pages, that is, the pages that are connected to the original page by backward and forward links. We first introduce a graph-based model called GenreSim, which selects an appropriate set of neighboring pages. We then construct a multiple classifier combination module that utilizes information from the selected neighboring pages and On-Page features to improve performance in genre identification. Experiments are conducted on well-known corpora, and favorable results indicate that our proposed framework is effective, particularly in identifying web pages with limited textual information. © 2015 The Author(s)

Exploiting link structure for web page genre identification

KAUST Repository

Zhu, Jia; Xie, Qing; Yu, Shoou I.; Wong, Wai Hung

2015-01-01

As the World Wide Web develops at an unprecedented pace, identifying web page genre has recently attracted increasing attention because of its importance in web search. A common approach for identifying genre is to use textual features that can be extracted directly from a web page, that is, On-Page features. The extracted features are subsequently inputted into a machine learning algorithm that will perform classification. However, these approaches may be ineffective when the web page contains limited textual information (e.g., the page is full of images). In this study, we address genre identification of web pages under the aforementioned situation. We propose a framework that uses On-Page features while simultaneously considering information in neighboring pages, that is, the pages that are connected to the original page by backward and forward links. We first introduce a graph-based model called GenreSim, which selects an appropriate set of neighboring pages. We then construct a multiple classifier combination module that utilizes information from the selected neighboring pages and On-Page features to improve performance in genre identification. Experiments are conducted on well-known corpora, and favorable results indicate that our proposed framework is effective, particularly in identifying web pages with limited textual information. © 2015 The Author(s)

Quantification of susceptibility artifacts in 0.5, 1.5 and 3.0 tesla magnetic resonance imaging produced from various biomaterials

International Nuclear Information System (INIS)

Matsuura, Hideki

2002-01-01

Several studies have examined various biomaterials to minimize susceptibility artifacts using low magnetic fields such as 0.5 Tesla or 1.5 Tesla, but no work has been done with high magnetic field. The purpose of the present study was to quantify the susceptibility artifacts produced from various biomaterials for neurosurgical implants in 0.5, 1.5 and 3.0 Tesla MR scanner. We performed MR imaging of six kinds of ceramics, two kinds of Co-based alloys with different combination, pure titanium, titanium alloy and stainless steel. Images were transferred to computer and analyzed. On all biomaterials, susceptibility artifacts developed parallel to the direction of the main magnetic field at both ends. Ceramics had considerably smaller artifact diameter compared with other biomaterials. Among ceramics, the artifact diameter of zirconia was the smallest. There were few differences between the artifact diameter of pure titanium and that of titanium alloy. Ceramics are promising biomaterials for minimum artifacts in higher field MR system. Although it is necessary to carry out degradation tests or retention force evaluation of the ceramics, we considered the ceramics are the most suitable biomaterials for the artifacts in MR imaging. (author)

Investigations on the electrodeposition behaviors of Bi0.5Sb1.5Te3 thin film from nitric acid baths

International Nuclear Information System (INIS)

Li Feihui; Huang Qinghua; Wang Wei

2009-01-01

The electrochemical reduction process of Bi 3+ , HTeO 2 + , Sb III and their mixtures in nitric acid medium was investigated by means of cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements. The reduction products electrodeposited at various potentials were examined using X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS). The results show that cathodic process in the nitric acid solution containing Bi 3+ , HTeO 2 + and Sb III involves the following reduction reactions in different polarizing potential ranges: In low polarizing potential ranges, Te 0 is formed firstly on the electrode surface through the electrochemical reduction of HTeO 2 + ; with the negative shift of the cathodic polarizing potential, the reduction reaction of Bi 3+ with Te 0 to form Bi 2 Te 3 takes place; when the cathodic polarizing potential is negative enough, Bi 3+ and Sb III react with Te 0 to form Bi 0.5 Sb 1.5 Te 3 . The results indicate that Bi 0.5 Sb 1.5 Te 3 films can be fabricated by controlling the electrodepositing potential in a proper high potential ranges.

Contrast-enhanced magnetic resonance angiography (MRA): evaluation of three different contrast agents at two different doses (0.05 and 0.1 mmol/kg) in pigs at 1.5 Tesla

Energy Technology Data Exchange (ETDEWEB)

Voth, M.; Vos, B.; Pietsch, H. [Bayer Schering Pharma AG, Diagnostic Imaging, Berlin (Germany); Michaely, Henrik J. [University of Heidelberg, Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, Mannheim (Germany); Schwenke, C. [ScoSSiS - Statistical Consulting, Berlin (Germany)

2011-02-15

To compare the image quality of contrast-enhanced magnetic resonance angiography (CE-MRA) of the supra-aortic vessels at 0.05 mmol/kg bw and 0.1 mmol/kg bw, between gadobutrol, Gd-DTPA and Gd-BOPTA quantitatively and qualitatively a total of eight pigs were evaluated intraindividually at 1.5 T. Each pig was examined using 0.1 mmol/kg gadobutrol, Gd-DTPA and Gd-BOPTA on day one and 0.05 mmol/kg on day two. MRA datasets for the carotid artery and the infraorbital artery were qualitatively assessed regarding overall image quality on an ordinal four-point scale (4-excellent, 1-non-diagnostic). The signal-to noise-ratio (SNR) was measured. The qualitative assessment of the carotid artery showed a higher median image quality for the 0.1 mmol dose than for the 0.05 mmol dose for all three compounds. No difference was found for the infraorbital artery. Mean SNR of Gd-BOPTA, Gd-DTPA, gadobutrol at 0.05 mmol/kg were 36.0 {+-} 13.4/37.9 {+-} 16.3/43.7 {+-} 0.4 and at 0.1 mmol/kg they were 50.1 {+-} 12.4/46.6 {+-} 6.5 / 54.6 {+-} 10.2. Gd-BOPTA 0.05 revealed a significantly lower SNR than all other agents at normal dose. Full-dose gadolinium MRA results in higher image quality and significantly higher SNR compared with the half dose. Gadobutrol and Gd-BOPTA have similar enhancement properties at full dose but at half dose, gadobutrol appears superior. (orig.)

Effect of warming bupivacaine 0.5% on ultrasound-guided axillary plexus block. Randomized prospective double-blind study.

Science.gov (United States)

Trabelsi, W; Ben Gabsia, A; Lebbi, A; Sammoud, W; Labbène, I; Kchelfi, S; Ferjani, M

2017-02-01

To evaluate the effect of warming bupivacaine 0.5% on ultrasound-guided axillary brachial plexus block. Prospective, randomized, double-blind. Eighty patients undergoing elective or emergency surgery beyond the distal third of the upper limb were divided into two groups of 40 patients: the warm group received 15mL bupivacaine 0.5% heated to 37°C; the cold group received 15mL 0.5% bupivacaine stored for at least 24hours in the lower compartment of a refrigerator at 13-15°C. Onset and duration of sensory and motor blocks were evaluated every 5minutes for 40minutes. Postoperative pain was evaluated at 1, 3, 6, 12 and 24hours. Effective analgesia time was recorded as the interval between anesthetic injection and the first analgesia requirement (VAS>30mm). Time to onset of sensory and motor block was significantly shorter in the warm group, and mean duration of sensory and motor block and of postoperative analgesia significantly longer. Warming bupivacaine 0.5% to 37°C accelerated onset of sensory and motor block and extended action duration. Copyright © 2016 Elsevier Masson SAS. All rights reserved.

Insights into Facebook Pages: an early adolescent health research study page targeted at parents.

Science.gov (United States)

Amon, Krestina L; Paxton, Karen; Klineberg, Emily; Riley, Lisa; Hawke, Catherine; Steinbeck, Katharine

2016-02-01

Facebook has been used in health research, but there is a lack of literature regarding how Facebook may be used to recruit younger adolescents. A Facebook Page was created for an adolescent cohort study on the effects of puberty hormones on well-being and behaviour in early adolescence. Used as a communication tool with existing participants, it also aimed to alert potential participants to the study. The purpose of this paper is to provide a detailed description of the development of the study Facebook Page and present the fan response to the types of posts made on the Page using the Facebook-generated Insights data. Two types of posts were made on the study Facebook Page. The first type was study-related update posts and events. The second was relevant adolescent and family research and current news posts. Observations on the use of and response to the Page were made over 1 year across three phases (phase 1, very low Facebook use; phase 2, high Facebook use; phase 3, low Facebook use). Most Page fans were female (88.6%), with the largest group of fans aged between 35 and 44 years. Study-related update posts with photographs were the most popular. This paper provides a model on which other researchers could base Facebook communication and potential recruitment in the absence of established guidelines.

Bimatoprost 0.03%/timolol 0.5% preservative-free ophthalmic solution versus bimatoprost 0.03%/timolol 0.5% ophthalmic solution (Ganfort) for glaucoma or ocular hypertension: a 12-week randomised controlled trial

Science.gov (United States)

Goldberg, Ivan; Gil Pina, Rafael; Lanzagorta-Aresti, Aitor; Schiffman, Rhett M; Liu, Charlie; Bejanian, Marina

2014-01-01

Aim To compare the efficacy and safety of single-dose bimatoprost 0.03%/timolol 0.5% preservative-free (PF) ophthalmic solution with bimatoprost 0.03%/timolol 0.5% ophthalmic solution in patients with open-angle glaucoma or ocular hypertension. Methods In this multicentre, randomised, parallel-group study, patients were randomised to bimatoprost/timolol PF or bimatoprost/timolol once daily in the morning for 12 weeks. Primary efficacy endpoints, reflecting differing regional regulatory requirements, included change from baseline in worse eye intraocular pressure (IOP) in the per-protocol population at week 12, and the average eye IOP at weeks 2, 6 and 12 in the intent-to-treat population. Results 561 patients were randomised (278 to bimatoprost/timolol PF; 283 to bimatoprost/timolol); 96.3% completed the study. Both treatment groups showed statistically and clinically significant mean decreases from baseline in worse eye IOP and in average eye IOP at all follow-up time points (p<0.001). Bimatoprost/timolol PF met all pre-established criteria for non-inferiority and equivalence to bimatoprost/timolol. Ocular adverse events were similar between treatment groups, with conjunctival hyperaemia being the most frequent. Most were mild or moderate in severity. Conclusions Bimatoprost/timolol PF demonstrated non-inferiority and equivalence in IOP lowering compared with bimatoprost/timolol, with no significant differences in safety and tolerability. Trial registration number NCT01177098. PMID:24667994

Role of iron in Na {sub 1.5}Fe {sub 0.5}Ti {sub 1.5}(PO {sub 4}) {sub 3}/C as electrode material for Na-ion batteries studied by operando Mössbauer spectroscopy

Energy Technology Data Exchange (ETDEWEB)

Difi, Siham [Université de Montpellier, Institut Charles Gerhardt, UMR 5253 CNRS (France); Saadoune, Ismael [Université Cadi Ayyad, Laboratoire de Chimie des Matériaux et de l’Environnement (Morocco); Sougrati, Moulay Tahar [Université de Montpellier, Institut Charles Gerhardt, UMR 5253 CNRS (France); Hakkou, Rachid [Université Cadi Ayyad, Laboratoire de Chimie des Matériaux et de l’Environnement (Morocco); Edstrom, Kristina [Uppsala University, Department of Chemistry - Ångström laboratory (Sweden); Lippens, Pierre-Emmanuel, E-mail: lippens@univ-montp2.fr [Université de Montpellier, Institut Charles Gerhardt, UMR 5253 CNRS (France)

2016-12-15

The role of iron in Na {sub 1.5}Fe {sub 0.5}Ti {sub 1.5}(PO {sub 4}){sub 3}/C electrode material for Na batteries has been studied by {sup 57}Fe Mössbauer spectroscopy in operando mode. The potential profile obtained in the galvanostatic regime shows three plateaus at different voltages due to different reaction mechanisms. Two of them, at 2.2 and 0.3 V vs Na {sup +}/Na {sup 0}, have been associated to redox processes involving iron and titanium in Na {sub 1.5}Fe {sub 0.5}Ti {sub 1.5}(PO {sub 4}){sub 3}. The role of titanium was previously elucidated for NaTi {sub 2}(PO {sub 4}){sub 3} and the effect of the substitution of Fe for Ti was investigated with {sup 57}Fe Mössbauer spectroscopy. We show that iron is an electrochemically active center at 2.2 V with the reversible Fe {sup 3+}/Fe {sup 2+} transformation and then remains at the oxidation state Fe {sup 2+} along the sodiation until the end of discharge at 0 V.

Finding Specification Pages from the Web

Science.gov (United States)

Yoshinaga, Naoki; Torisawa, Kentaro

This paper presents a method of finding a specification page on the Web for a given object (e.g., ``Ch. d'Yquem'') and its class label (e.g., ``wine''). A specification page for an object is a Web page which gives concise attribute-value information about the object (e.g., ``county''-``Sauternes'') in well formatted structures. A simple unsupervised method using layout and symbolic decoration cues was applied to a large number of the Web pages to acquire candidate attributes for each class (e.g., ``county'' for a class ``wine''). We then filter out irrelevant words from the putative attributes through an author-aware scoring function that we called site frequency. We used the acquired attributes to select a representative specification page for a given object from the Web pages retrieved by a normal search engine. Experimental results revealed that our system greatly outperformed the normal search engine in terms of this specification retrieval.

Searchers' relevance judgments and criteria in evaluating Web pages in a learning style perspective

DEFF Research Database (Denmark)

Papaeconomou, Chariste; Zijlema, Annemarie F.; Ingwersen, Peter

2008-01-01

The paper presents the results of a case study of searcher's relevance criteria used for assessments of Web pages in a perspective of learning style. 15 test persons participated in the experiments based on two simulated work tasks that provided cover stories to trigger their information needs. Two...... learning styles were examined: Global and Sequential learners. The study applied eye-tracking for the observation of relevance hot spots on Web pages, learning style index analysis and post-search interviews to gain more in-depth information on relevance behavior. Findings reveal that with respect to use......, they are statistically insignificant. When interviewed in retrospective the resulting profiles tend to become even similar across learning styles but a shift occurs from instant assessments with content features of web pages replacing topicality judgments as predominant relevance criteria....

Search Results | Page 12 | IDRC - International Development ...

International Development Research Centre (IDRC) Digital Library (Canada)

Results 111 - 120 of 198 ... ... Apply INFECTIOUS DISEASES filter · SOCIAL PROBLEMS 12 Apply SOCIAL ... Information and Networks in Asia and Sub-Saharan Africa 2 Apply ... This mosquito-transmitted disease has spread over the last 20 years, putting ... Panama's tobacco epidemic demonstrates the importance of strong ...

Metabolism in humans of cis-12,trans-15-octadecadienoic acid relative to palmitic, stearic, oleic and linoleic acids

International Nuclear Information System (INIS)

Emken, E.A.; Rohwedder, W.K.; Adlof, R.O.; Rakoff, H.; Gulley, R.M.

1987-01-01

Mixtures of triglycerides containing deuterium-labeled hexadecanoic acid (16:0), octadecanoic acid (18:0), cis-9-octadecenoic acid (9c-18:1), cis-9,cis-12-octadecadienoic acid (9c, 12c-18:2) and cis-12,trans-15-octadecadienoic acid (12c,15t-18:2) were fed to two young-adult males. Plasma lipid classes were isolated from samples collected periodically over 48 hr. Incorporation and turnover of the deuterium-labeled fats in plasma lipids were followed by gas chromatography-mass spectrometry (GC-MS) analysis of the methyl ester derivatives. Absorption of the deuterated fats was followed by GC-MS analysis of chylomicron triglycerides isolated by ultracentrifugation. Results were the following: (i) endogenous fat contributed about 40% of the total fat incorporated into chylomicron triglycerides; (ii) elongation, desaturation and chain-shortened products from the deuterated fats were not detected; (iii) the polyunsaturated isomer 12c,15t-18:2 was metabolically more similar to saturated and 9c-18:1 fatty acids than to 9c,12c-18:2; (iv) relative incorporation of 9c,12c-18:2 into phospholipids did not increase proportionally with an increase of 9c,12c-18:2 in the mixture of deuterated fats fed; (v) absorption of 16:0, 18:0, 9c-18:1, 9c,12c-18:2 and 12c,15t-18:2 were similar; and (vi) data for the 1- and 2-acyl positions of phosphatidylcholine and for cholesteryl ester fractions reflected the known high specificity of phosphatidylcholine acyltransferase and lecithin:cholesteryl acyltransferase for 9c,12c-18:2. These results illustrate that incorporation of dietary fatty acids into human plasma lipid classes is selectively controlled and that incorporation of dietary 9c,12c-18:2 is limited

Polarisation parameter measurement in the proton-proton elastic scattering from 0.5 to 1.2 GeV

International Nuclear Information System (INIS)

Ducros, Yves

1970-01-01

The angular distribution of the polarisation parameter was measured in the proton-proton elastic - scattering at seven energies between 0.5 and 1.2 GeV. A polarized proton target was used. The results show a maximum of the polarisation parameter of 0.6, at 0.73 GeV. This maximum is due to the important increase of the total cross section between 0.6 and 0.73 GeV. At 1.2 GeV the angular distribution of the polarisation shows a minimum for a momentum transfer value of -1 (GeV/c) 2 . A phase shift analysis was done at 0.66 GeV, using all available experimental data at this energy. There is no evidence of a di-baryonic resonance in the 1 D 2 phase. (author) [fr

Classifying web pages with visual features

NARCIS (Netherlands)

de Boer, V.; van Someren, M.; Lupascu, T.; Filipe, J.; Cordeiro, J.

2010-01-01

To automatically classify and process web pages, current systems use the textual content of those pages, including both the displayed content and the underlying (HTML) code. However, a very important feature of a web page is its visual appearance. In this paper, we show that using generic visual

Measurements of the viscosity of carbon dioxide at temperatures from (253.15 to 473.15) K with pressures up to 1.2 MPa

International Nuclear Information System (INIS)

Schäfer, Michael; Richter, Markus; Span, Roland

2015-01-01

Highlights: • A new rotating-body viscometer for the low-pressure region was presented. • A viscosity dependent offset was compensated by calibrating the viscometer. • The viscosity of carbon dioxide was measured at low pressures. • Measurements were carried out from T = (253.15 to 473.15) K with p ≤ 1.2 MPa. • The relative expanded combined uncertainty (k = 2) was U r,c (η) = (0.20 to 0.41)%. - Abstract: The viscosity of carbon dioxide was measured over the temperature range T = (253.15 to 473.15) K with pressures up to 1.2 MPa utilizing a new rotating-body viscometer. The relative expanded combined uncertainty (k = 2) in viscosity (including uncertainties of temperature and pressure) was (0.20 to 0.41)%. The instrument was specifically designed for measurements at low gas densities and enables measurements of the dynamic viscosity at temperatures between T = 253.15 K and T = 473.15 K with pressures up to 2 MPa. For carbon dioxide, the fluid specific measuring range with regard to pressure was limited to 1.2 MPa due to the formation of disturbing vortices inside the measuring cell at higher pressures. The model function for the viscosity measurement was extended in such a way that the dynamic viscosity was measured relative to helium. Therefore, the influence of the geometry of the concentric cylindrical system inside the measuring cell became almost negligible. Moreover, a systematic offset resulting from a small but inevitable eccentricity of the cylindrical system was compensated for. The residual damping, usually measured in vacuum, was calibrated in the entire temperature range using viscosity values of helium, neon and argon calculated ab initio; at T = 298.15 K recommended reference values were used. A viscosity dependent offset of the measured viscosities, which was observed in previously published data, did not occur when using the calibrated residual damping. The new carbon dioxide results were compared to other experimental literature data

Identification of Protein Targets of 12/15-Lipoxygenase-Derived Lipid Electrophiles in Mouse Peritoneal Macrophages Using Omega-Alkynyl Fatty Acid.

Science.gov (United States)

Isobe, Yosuke; Kawashima, Yusuke; Ishihara, Tomoaki; Watanabe, Kenji; Ohara, Osamu; Arita, Makoto

2018-04-20

The 12/15-lipoxygenase (12/15-LOX) enzyme introduces peroxyl groups, in a position-specific manner, into polyunsaturated fatty acids to form various kinds of bioactive lipid metabolites, including lipid-derived electrophiles (LDE). The resident peritoneal macrophage is the site of highest 12/15-LOX expression in the mouse. However, the role of the enzyme in the regulation of resident macrophages is not fully understood. Here, we describe a chemoproteomic method to identify the targets of enzymatically generated LDE. By treating mouse peritoneal macrophages with omega-alkynyl arachidonic acid (aAA), we identified a series of proteins adducted by LDE generated through a 12/15-LOX catalyzed reaction. Pathway analysis revealed a dramatic enrichment of proteins involved in energy metabolism and found that glycolytic flux and mitochondrial respiration were significantly affected by the expression of 12/15-LOX. Our findings thus highlight the utility of chemoproteomics using aAA for identifying intracellular targets of enzymatically generated LDE.

Pharmacologic blockade of 12/15-lipoxygenase ameliorates memory deficits, Aβ and tau neuropathology in the triple-transgenic mice.

Science.gov (United States)

Chu, J; Li, J-G; Giannopoulos, P F; Blass, B E; Childers, W; Abou-Gharbia, M; Praticò, D

2015-11-01

The 12/15-lipoxygenase (12/15LO) enzyme is widely distributed within the central nervous system. Previous work showed that this protein is upregulated in Alzheimer's disease (AD), and plays an active role in the development of brain amyloidosis in amyloid beta (Aβ)-precursor protein transgenic mice (Tg2576). In the present paper, we studied the effect of its pharmacologic inhibition on the AD-like phenotype of a mouse model with plaques and tangles, the triple-transgenic mice. Compared with mice receiving placebo, the group treated with PD146176, a specific 12/15LO inhibitor, manifested a significant improvement of their memory deficits. The same animals had a significant reduction in Aβ levels and deposition, which was secondary to a decrease in the β-secretase pathway. In addition, while total tau-soluble levels were unchanged for both groups, PD146176-treated mice had a significant reduction in its phosphorylation state and insoluble fraction, which specifically associated with decrease in stress-activated protein kinase/c-Jun N-terminal kinase activity. In vitro study showed that the effect on tau and Aβ were independent from each other. These data establish a functional role for 12/15LO in the pathogenesis of the full spectrum of the AD-like phenotype and represent the successful completion of the initial step for the preclinical development of 12/15LO inhibitors as novel therapeutic agents for AD.

Insights on the fundamental lithium storage behavior of all-solid-state lithium batteries containing the LiNi0.8Co0.15Al0.05O2 cathode and sulfide electrolyte

Science.gov (United States)

Peng, Gang; Yao, Xiayin; Wan, Hongli; Huang, Bingxin; Yin, Jingyun; Ding, Fei; Xu, Xiaoxiong

2016-03-01

An insightful study on the fundamental lithium storage behavior of all-solid-state lithium battery with a structure of LiNi0.8Co0.15Al0.05O2 (NCA)/Li10GeP2S12/Li-In is carried out in this work. The relationship between electrochemical performances and particle size, surface impurities and defects of the NCA positive material is systematically investigated. It is found that a ball-milling technique can decrease the particle size and remove surface impurities of the NCA cathode while also give rise to surface defects which could be recovered by a post-annealing process. The results indicate that the interfacial resistance between the NCA and Li10GeP2S12 is obviously decreased during the ball-milling followed by a post-annealing. Consequently, the discharge capacity of NCA in the NCA/Li10GeP2S12/Li-In solid-state battery is significantly enhanced, which exhibits a discharge capacity of 146 mAh g-1 at 25 °C.

Effect of Cr substitution on magnetic and magnetic entropy change of La{sub 0.65}Eu{sub 0.05}Sr{sub 0.3}Mn{sub 1−x}Cr{sub x}O{sub 3} (0.05≤x≤0.15) rhombohedral nanocrystalline near room temperature

Energy Technology Data Exchange (ETDEWEB)

Bellouz, R., E-mail: bellouzridha@yahoo.fr [Laboratoire de Physico-chimie des Matériaux, Département de Physique, Faculté des Sciences de Monastir,Université de Monastir, 5019 (Tunisia); Oumezzine, M. [Laboratoire de Physico-chimie des Matériaux, Département de Physique, Faculté des Sciences de Monastir,Université de Monastir, 5019 (Tunisia); Hlil, E.K. [Institut Néel, National Centre for Scientific Research, Université Joseph Fourier, B.P. 166, 38042 Grenoble (France); Dhahri, E. [Laboratoire de Physique appliqué, Département de physique, Faculté des Sciences de Sfax, 3018 (Tunisia)

2015-02-01

We have studied the effect of Cr substitution on magnetic and magnetocaloric properties in nanocrystalline La{sub 0.65}Eu{sub 0.05}Sr{sub 0.3}Mn{sub 1−x}Cr{sub x}O{sub 3} (x=0.05, 0.1 and 0.15). The materials were prepared using the Pechini sol–gel method. All the studied samples were crystallized into a single phase rhombohedral structure with R−3C space group. Magnetic measurements indicate that the ferromagnetic double exchange interaction is weakened with increasing Cr concentration, resulting in a shift in T{sub C} from 338 K to 278 K as x varied between 0.05 and 0.15. Detailed analyzes in the vicinity of the ferromagnetic (FM)–paramagnetic (PM) phase-transition temperature prove the samples undergoing a second-order phase transition. The magnetocaloric effect is calculated from the measurement of initial isothermal magnetization versus magnetic field at various temperatures. The maximum magnetic entropy change |ΔS{sub M}{sup max}| is found to decrease with increasing of Cr content from 4.04 J/Kg K for x=0.05–0.78 J/KgK for x=0.15 upon 5 T applied field change. The relative cooling power (RCP) of La{sub 0.65}Eu{sub 0.05}Sr{sub 0.3}Mn{sub 1−x}Cr{sub x}O{sub 3} series is nearly 54% of pure Gd, which will be an interesting system for application in room temperature refrigeration. - Highlights: • Nanocrystalline materials La{sub 0.65}Eu{sub 0.05}Sr{sub 0.3}Mn{sub 1−x}Cr{sub x}O{sub 3} were obtained. • The Cr substitution decreases the T{sub C} from 338 K for x=0.05–278 K for x=0.15. • The relative cooling power of La{sub 0.65}Eu{sub 0.05}Sr{sub 0.3}Mn{sub 1−x}Cr{sub x}O{sub 3} is nearly 54% of pure Gd. • Arrott plot analyses was applied to study the order of the magnetic transition. • La{sub 0.65}Eu{sub 0.05}Sr{sub 0.3}Mn{sub 1−x}Cr{sub x}O{sub 3} samples show second order PM–FM transition at T=T{sub C}.

Value of Combined Detection of Serum CEA, CA72-4, CA19-9, CA15-3 and CA12-5 in the Diagnosis of Gastric Cancer.

Science.gov (United States)

Chen, Changguo; Chen, Qiuyuan; Zhao, Qiangyuan; Liu, Min; Guo, Jianwei

2017-05-01

To examine whether the combined detection of serum tumor markers (CEA, CA72-4, CA19-9, CA15-3 and CA12-5) improves the sensitivity and accuracy in the diagnosis of gastric cancer (GC). An automatic chemiluminescence immune analyzer with matched kits was used to determine the levels of serum CEA, CA72-4, CA19-9, CA15-3, and CA12-5 in 87 patients with gastric cancer (GC group), 60 patients with gastric benign diseases (GBD group) who were hospitalized during the same period, and 40 healthy subjects undergoing a physical examination. The values of these 5 tumor markers in the diagnosis of gastric cancer were analyzed. The levels of serum CEA, CA72-4, CA19-9, and CA12-5 were higher in the GC group than in the GBD group and healthy subjects, and these differences were significant ( P 0.05). The combined detection of CEA, CA72-4, CA19-9, and CA12-5 had a higher diagnostic value for gastric cancer than did single detection, and the positive detection rate of the combined detection of the four tumor markers was 60.9%. The diagnostic power when using the combined detection of CA72-4, CEA, CA19-9, and CA12-5 was the best. The combined detection of serum CA72-4, CEA, CA19-9 and CA12-5 increases the sensitivity and accuracy in the diagnosis of GC and can thus be considered an important tool for early diagnosis. © 2017 by the Association of Clinical Scientists, Inc.

Kerma factors and reaction cross sections for n + 12C between 15 and 18 MeV

International Nuclear Information System (INIS)

Tornow, W.; Chen, Z.M.; Baird, K.; Walter, R.L.

1988-01-01

Differential elastic and inelastic (4.44 MeV) neutron scattering cross sections from 12 C are presented at 15.6, 16.8 and 17.3 MeV. The existing 18.2 MeV differential cross-section data were combined with newly measured analysing power data to parametrise neutron scattering at this energy. The 12 C recoil kerma factors were calculated and reaction cross sections were obtained from a phase-shift analysis and coupled channel analyses in the 15.6-18.2 MeV energy range. (author)

Dielectric properties of (K0.5Na0.5)NbO3-(Bi0.5Li0.5)ZrO3 lead-free ceramics as high-temperature ceramic capacitors

Science.gov (United States)

Yan, Tianxiang; Han, Feifei; Ren, Shaokai; Ma, Xing; Fang, Liang; Liu, Laijun; Kuang, Xiaojun; Elouadi, Brahim

2018-04-01

(1 - x)K0.5Na0.5NbO3- x(Bi0.5Li0.5)ZrO3 (labeled as (1 - x)KNN- xBLZ) lead-free ceramics were fabricated by a solid-state reaction method. A research was conducted on the effects of BLZ content on structure, dielectric properties and relaxation behavior of KNN ceramics. By combining the X-ray diffraction patterns with the temperature dependence of dielectric properties, an orthorhombic-tetragonal phase coexistence was identified for x = 0.03, a tetragonal phase was determined for x = 0.05, and a single rhombohedral structure occurred at x = 0.08. The 0.92KNN-0.08BLZ ceramic exhibits a high and stable permittivity ( 1317, ± 15% variation) from 55 to 445 °C and low dielectric loss (≤ 6%) from 120 to 400 °C, which is hugely attractive for high-temperature capacitors. Activation energies of both high-temperature dielectric relaxation and dc conductivity first increase and then decline with the increase of BLZ, which might be attributed to the lattice distortion and concentration of oxygen vacancies.

Indirect measurement of the 15N(p,α)12C reaction cross section through the THM

International Nuclear Information System (INIS)

Romano, S.; La Cognata, M.; Spitaleri, C.; Cherubini, S.; Gulino, M.; Lamia, L.; Musumarra, A.; Tribble, R.; Trache, C.L.; Fu, C.

2005-01-01

Among the reactions of the stellar CNO cycle, the 15 N(p,α) 12 C plays a crucial role. In particular its reaction rate is important for understanding the CNOI escape towards CNOII. Thus it is important to study its bare nucleus cross section at the energies typical of such astrophysical environments, i.e. few tens of keV. At these energies such a measurement is hard to perform in a direct way because of the electron screening effect as pointed out for several cases. A possibility is then given by indirect methods and in particular the Trojan Horse Method (THM) has been applied in this case. The preliminary validity test for the study of 15 N(p,α) 12 C via the 15 N(d,α 12 C)n three body reaction is reported in this work. A 15 N beam was provided by the cyclotron at Texas A and M University with energy 60 MeV/c and delivered onto a CD 2 target. A ΔE/E telescope (PSD + ionization chamber) and a pair of PSD's were mounted in a coplanar geometry. Coincidences between the detectors were considered and the 15 N-p quasi-free contribution to the overall three-body cross-section was selected. Data analysis and preliminary results will be discussed and compared with direct data. (author)

Syntheses, crystal structures, and properties of the isotypic pair [Cr(H{sub 2}O){sub 6}]{sub 2}[B{sub 12}H{sub 12}]{sub 3}.15H{sub 2}O and [In(H{sub 2}O){sub 6}]{sub 2}[B{sub 12}H{sub 12}]{sub 3}.15H{sub 2}O

Energy Technology Data Exchange (ETDEWEB)

Van, Nguyen-Duc; Kleeberg, Fabian M.; Schleid, Thomas [Institut fuer Anorganische Chemie, Universitaet Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart (Germany)

2015-11-15

Single crystals of [Cr(H{sub 2}O){sub 6}]{sub 2}[B{sub 12}H{sub 12}]{sub 3}.15H{sub 2}O and [In(H{sub 2}O){sub 6}]{sub 2}[B{sub 12}H{sub 12}]{sub 3}.15H{sub 2}O were obtained by reactions of aqueous solutions of the acid (H{sub 3}O){sub 2}[B{sub 12}H{sub 12}] with chromium(III) hydroxide and indium metal shot, respectively. The title compounds crystallize isotypically in the trigonal system with space group R anti 3c (a = 1157.62(3), c = 6730.48(9) pm for the chromium, a = 1171.71(3), c = 6740.04(9) pm for the indium compound, Z = 6). The arrangement of the quasi-icosahedral [B{sub 12}H{sub 12}]{sup 2-} dianions can be considered as stacking of two times nine layers with the sequence..ABCCABBCA.. and the metal trications arrange in a cubic closest packed..abc.. stacking sequence. The metal trications are octahedrally coordinated by six water molecules of hydration, while another fifteen H{sub 2}O molecules fill up the structures as zeolitic crystal water or second-sphere hydrating species. Between these free and the metal-bonded water molecules, bridging hydrogen bonds are found. Furthermore, there is also evidence of hydrogen bonding between the anionic [B{sub 12}H{sub 12}]{sup 2-} clusters and the free zeolitic water molecules according to B-H{sup δ-}..{sup δ+}H-O interactions. Vibrational spectroscopy studies prove the presence of these hydrogen bonds and also show slight distortions of the dodecahydro-closo-dodecaborate anions from their ideal icosahedral symmetry (I{sub h}). Thermal decomposition studies for the example of [Cr(H{sub 2}O){sub 6}]{sub 2}[B{sub 12}H{sub 12}]{sub 3}.15H{sub 2}O gave no hints for just a simple multi-stepwise dehydration process. (Copyright copyright 2015 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

REDESIGN OF CERNS QUADRUPOLE RESONATOR FOR TESTING OF SUPERCONDUCTING SAMPLES

CERN Document Server

Del Pozo Romano, Veronica

2017-01-01

The quadrupole resonator (QPR) was constructed in 1997 to measure the surface resistance of niobium samples at 400 MHz, the technology and RF frequency chosen for the LHC. It allows measurement of the RF properties of superconducting films deposited on disk-shaped metallic substrates. The samples are used to study different coatings which is much faster than the coating, stripping and re-coating of sample cavities. An electromagnetic and mechanical re-design of the existing QPR has been done with the goal of doubling the magnetic peak fields on the samples. Electromagnetic simulations were carried out on a completely parametrized model, using the existings QPR as baseline and modifying its dimensions. The aim was to optimize the measurement range and resolution by increasing the ratio between the magnetic peak fields on the sample and in the cavity. Increasing the average magnetic field on the sample leads to a more homogenous field distribution over the sample. Some of the modifications were based on t...

The rest-frame ultraviolet structure of 0.5 < z < 1.5 galaxies

Energy Technology Data Exchange (ETDEWEB)

Bond, Nicholas A.; Gardner, Jonathan P. [Cosmology Laboratory (Code 665), NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States); De Mello, Duilia F. [Physics Department, The Catholic University of America, Washington, DC 20064 (United States); Teplitz, Harry I.; Rafelski, Marc [IPAC, California Institute of Technology, Pasadena, CA 91125 (United States); Koekemoer, Anton M.; Coe, Dan; Grogin, Norman [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Gawiser, Eric [Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854 (United States); Ravindranath, Swara [Inter-University Centre for Astronomy and Astrophysics, Pune (India); Scarlata, Claudia [Minnesota Institute for Astrophysics, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 (United States)

2014-08-10

We present the rest-frame UV wavelength dependence of the Petrosian-like half-light radius (r{sub 50}), and the concentration parameter for a sample of 198 star-forming galaxies at 0.5 < z < 1.5. We find a ∼5% decrease in r{sub 50} from 1500 Å to 3000 Å, with half-light radii at 3000 Å ranging from 0.6 kpc to 6 kpc. We also find a decrease in concentration of ∼0.07 (1.9 < C{sub 3000} < 3.9). The lack of a strong relationship between r{sub 50} and wavelength is consistent with a model in which clumpy star formation is distributed over length scales comparable to the galaxy's rest-frame optical light. While the wavelength dependence of r{sub 50} is independent of size at all redshifts, concentration decreases more sharply in the far-UV (∼1500 Å) for large galaxies at z ∼ 1. This decrease in concentration is caused by a flattening of the inner ∼20% of the light profile in disk-like galaxies, indicating that the central regions have different UV colors than the rest of the galaxy. We interpret this as a bulge component with older stellar populations and/or more dust. The size-dependent decrease in concentration is less dramatic at z ∼ 2, suggesting that bulges are less dusty, younger, and/or less massive than the rest of the galaxy at higher redshifts.

Bimatoprost 0.03%/timolol 0.5% preservative-free ophthalmic solution versus bimatoprost 0.03%/timolol 0.5% ophthalmic solution (Ganfort) for glaucoma or ocular hypertension: a 12-week randomised controlled trial.

Science.gov (United States)

Goldberg, Ivan; Gil Pina, Rafael; Lanzagorta-Aresti, Aitor; Schiffman, Rhett M; Liu, Charlie; Bejanian, Marina

2014-07-01

To compare the efficacy and safety of single-dose bimatoprost 0.03%/timolol 0.5% preservative-free (PF) ophthalmic solution with bimatoprost 0.03%/timolol 0.5% ophthalmic solution in patients with open-angle glaucoma or ocular hypertension. In this multicentre, randomised, parallel-group study, patients were randomised to bimatoprost/timolol PF or bimatoprost/timolol once daily in the morning for 12 weeks. Primary efficacy endpoints, reflecting differing regional regulatory requirements, included change from baseline in worse eye intraocular pressure (IOP) in the per-protocol population at week 12, and the average eye IOP at weeks 2, 6 and 12 in the intent-to-treat population. 561 patients were randomised (278 to bimatoprost/timolol PF; 283 to bimatoprost/timolol); 96.3% completed the study. Both treatment groups showed statistically and clinically significant mean decreases from baseline in worse eye IOP and in average eye IOP at all follow-up time points (p<0.001). Bimatoprost/timolol PF met all pre-established criteria for non-inferiority and equivalence to bimatoprost/timolol. Ocular adverse events were similar between treatment groups, with conjunctival hyperaemia being the most frequent. Most were mild or moderate in severity. Bimatoprost/timolol PF demonstrated non-inferiority and equivalence in IOP lowering compared with bimatoprost/timolol, with no significant differences in safety and tolerability. NCT01177098. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

Assessment of genetic variability in Trigonella foenum-graecum L. germplasm by SDS-page analysis

Directory of Open Access Journals (Sweden)

Qadir Abdul

2017-01-01

Full Text Available The 96 genotypes of Trigonella foenum-graecum L. (Fenugreek were estimated by using Sodium Dodecyl Sulphate Poly Acrylamide Gel Electrophoresis (SDS-PAGE. The accessions were maintained from diverse ecological areas of the world. Total seed storage proteins were electrophoresis on 12.5% polyacrylamide gels. A total of 17 protein bands were detected, of which seven were highly polymorphic and six were moderate polymorphic and four were low polymorphic with molecular weight extending from of ~15 to ~180 kDa. The dendrogram based on similarity matrix using Unweighted Pair Group Method with Arithmetic Mean (UPGMA divided all the genotypes into four major clusters i.e., I, II, III and IV comprising 51, 24, 10 and 11 accessions, respectively. Although limited genetic diversity was detected amongst known germplasm but the presence/absence of polymorphic bands revealed a significant variances among different Trigonella genotypes. The differences exposed in this project work should be oppressed for the future breeding prospective of Trigonella genotypes by using other advanced molecular techniques. The SDS-PAGE per se seems inadequate tool for such kind of analysis, and may be integrated with other genetic and sequence based approaches for more precise estimation of the genetic variability within closely related accessions. Our results provide baseline for obtaining locally adapted and improved cultivars of fenugreek in Pakistan.

Neutron scattering from 12C between 15.6 and 17.3 MeV

International Nuclear Information System (INIS)

Chen, Z.M.; Baird, K.; Howell, C.R.; Roberts, M.L.; Tornow, W.; Walter, R.L.

1993-01-01

The differential cross section σ(θ) for neutron elastic scattering from 12 C and for inelastic scattering from the 4.44 MeV state was measured at 15.57, 16.75 and 17.29 MeV. The σ(θ) data, together with published analysing power A y (θ) data, were analysed in the framework of the spherical optical model and in the coupled-channels formalism. It was concluded that the present 12 C(n,n) 12 C data and published data at higher energies appear to be well suited for determining properties of valence single-particle excitations in 11 C via an iterative-moment approach or a dispersive optical-model analysis. (author)

How compliant are dental practice Facebook pages with Australian health care advertising regulations? A Netnographic review.

Science.gov (United States)

Holden, Acl; Spallek, H

2018-03-01

The National Law that regulates the dental and other health care professions in Australia sets out regulations that dictate how dental practices are to advertise. This study examines the extent to which the profession complies with these regulations and the potential impact that advertising may have upon professionalism. A Facebook search of 38 local government areas in Sydney, New South Wales, was carried out to identify dental practices that had pages on this social media site. A framework for assessment of compliance was developed using the regulatory guidelines and was used to conduct a netnographic review. Two hundred and sixty-six practice pages were identified from across the 38 regions. Of these pages, 71.05% were in breach of the National Law in their use of testimonials, 5.26% displayed misleading or false information, 4.14% displayed offers that had no clear terms and conditions or had inexact pricing, 19.55% had pictures or text that was likely to create unrealistic expectations of treatment benefit and 16.92% encouraged the indiscriminate and unnecessary utilization of health services. This study found that compliance with the National Law by the Facebook pages surveyed was poor. © 2017 Australian Dental Association.

The development of compact electroactive polymer actuators suitable for use in full page Braille displays

Science.gov (United States)

Gorny, Lee J.; Zellers, Brian C.; Lin, Minren; Liu, Sheng; Zhang, Qiming M.

2010-04-01

Piezoceramic actuators, presently used in commercial Braille displays, are limited by the material's relatively small strain and brittle nature. For this reason, it is a challenge to develop full page, compact, graphic Braille displays that are affordable. A newly developed material composed of P(VDF-TrFE-CFE) terpolymer blended with 5% P(VDF-CTFE) electrostrictive actuators exhibits large strains (~5% at 150V/μm), fast actuation (>5 mm/s), and has a relatively high elastic modulus (1.2 GPa). This material exhibits more than double the elastic energy density and a 50% higher modulus of the original electrostrictive terpolymer. Hence, the potential for viable actuators in compact, full page Braille displays is greater than ever, provided actuators can be manufactured reliably in quantity. This talk presents recent work in scaling production of such rolled actuators. Actuators extend .5 mm, are confined to the 2.5 mm grid spacing of conventional Braille text, generate >0.5 N force and operate at less than 200V, thus meeting the primary requirements for a commercialized Braille display. To manufacture these actuators, cast films are stretched using a roll-to-roll zone drawing machine that is capable of producing quantities of 2 μm thick film with high quality. What follows is a discussion of this machine, the roll-to-roll film stretching process and an assessment of the resulting stretched film for use as linear strain actuators, like those used in our Braille cell.

The effect of new links on Google PageRank

NARCIS (Netherlands)

Avrachenkov, Konstatin; Litvak, Nelli

2004-01-01

PageRank is one of the principle criteria according to which Google ranks Web pages. PageRank can be interpreted as a frequency of visiting a Web page by a random surfer and thus it reflects the popularity of a Web page. We study the effect of newly created links on Google PageRank. We discuss to

CERN Technical Training: available Places in forthcoming Courses

CERN Multimedia

2007-01-01

The following course sessions are scheduled in the framework of the CERN Technical Training Program 2007 and still have places available. You may find the full, updated Technical Training course program on our web-catalogue web-catalogue. OFFICE SOFTWARE FrontPage 2003 - niveau 2 F 22-23.10 2 d Excel 2007 Level 2 : ECDL F 25-26.10 2 d Nouveauté Word 2007 E/F 29.10 1 d Nouveauté Excel 2007 E/F 30.10 0.5 d Excel 2007 (Short Course III) - How to pivot tables F/E 09.11 0.5 d Introduction to Sharepoint E 15.11 1 d Nouveauté Powerpoint 2007 E/F 16.11 1 d Excel 2007 (Short Course IV) - How to link cells, worksheets and workbooks F/E 16.11 0.5 d FrontPage 2003 - Level 1 E 29-30.11 2 d Excel 2007 - niveau 1 : ECDL F 10-11.12 2...

36 CFR 1121.12 - Fees.

Science.gov (United States)

2010-07-01

... ACT IMPLEMENTATION § 1121.12 Fees. If an individual or authorized representative requests copies of his or her record, he or she shall be charged ten cents per page, excluding the cost of any search for...

Importance of intrinsic and non-network contribution in PageRank centrality and its effect on PageRank localization

OpenAIRE

Deyasi, Krishanu

2016-01-01

PageRank centrality is used by Google for ranking web-pages to present search result for a user query. Here, we have shown that PageRank value of a vertex also depends on its intrinsic, non-network contribution. If the intrinsic, non-network contributions of the vertices are proportional to their degrees or zeros, then their PageRank centralities become proportion to their degrees. Some simulations and empirical data are used to support our study. In addition, we have shown that localization ...

12/15-lipoxygenase is required for the early onset of high fat diet-induced adipose tissue inflammation and insulin resistance in mice.

Directory of Open Access Journals (Sweden)

Dorothy D Sears

2009-09-01

Full Text Available Recent understanding that insulin resistance is an inflammatory condition necessitates searching for genes that regulate inflammation in insulin sensitive tissues. 12/15-lipoxygenase (12/15LO regulates the expression of proinflammatory cytokines and chemokines and is implicated in the early development of diet-induced atherosclerosis. Thus, we tested the hypothesis that 12/15LO is involved in the onset of high fat diet (HFD-induced insulin resistance.Cells over-expressing 12/15LO secreted two potent chemokines, MCP-1 and osteopontin, implicated in the development of insulin resistance. We assessed adipose tissue inflammation and whole body insulin resistance in wild type (WT and 12/15LO knockout (KO mice after 2-4 weeks on HFD. In adipose tissue from WT mice, HFD resulted in recruitment of CD11b(+, F4/80(+ macrophages and elevated protein levels of the inflammatory markers IL-1beta, IL-6, IL-10, IL-12, IFNgamma, Cxcl1 and TNFalpha. Remarkably, adipose tissue from HFD-fed 12/15LO KO mice was not infiltrated by macrophages and did not display any increase in the inflammatory markers compared to adipose tissue from normal chow-fed mice. WT mice developed severe whole body (hepatic and skeletal muscle insulin resistance after HFD, as measured by hyperinsulinemic euglycemic clamp. In contrast, 12/15LO KO mice exhibited no HFD-induced change in insulin-stimulated glucose disposal rate or hepatic glucose output during clamp studies. Insulin-stimulated Akt phosphorylation in muscle tissue from HFD-fed mice was significantly greater in 12/15LO KO mice than in WT mice.These results demonstrate that 12/15LO mediates early stages of adipose tissue inflammation and whole body insulin resistance induced by high fat feeding.

Pages 498 - 506.pmd

African Journals Online (AJOL)

Administrator

dehydrogenase, creatinine, urea and alanine aminotransferase were observed in untreated diabetic rats. Also, untreated diabetic rats had significantly (p<0.05) elevated urinary glucose and protein and, lowered .... 12-h light–dark cycle.

Effects of picture amount on preference, balance, and dynamic feel of Web pages.

Science.gov (United States)

Chiang, Shu-Ying; Chen, Chien-Hsiung

2012-04-01

This study investigates the effects of picture amount on subjective evaluation. The experiment herein adopted two variables to define picture amount: column ratio and picture size. Six column ratios were employed: 7:93,15:85, 24:76, 33:67, 41:59, and 50:50. Five picture sizes were examined: 140 x 81, 220 x 127, 300 x 173, 380 x 219, and 460 x 266 pixels. The experiment implemented a within-subject design; 104 participants were asked to evaluate 30 web page layouts. Repeated measurements revealed that the column ratio and picture size have significant effects on preference, balance, and dynamic feel. The results indicated the most appropriate picture amount for display: column ratios of 15:85 and 24:76, and picture sizes of 220 x 127, 300 x 173, and 380 x 219. The research findings can serve as the basis for the application of design guidelines for future web page interface design.

Bupivacaína a 0,15% hipobárica para raquianestesia posterior (dorsal versus bupivacaína a 0,5% hiperbárica para procedimentos cirúrgicos anorretais em regime ambulatorial Bupivacaína a 0,15% hipobárica para raquianestesia posterior (dorsal versus bupivacaína a 0,5% hiperbara para procedimientos quirúrgicos anorrectales en régimen ambulatorial Hypobaric 0.15% bupivacaine versus hyperbaric 0.5% bupivacaine for posterior (dorsal spinal block in outpatient anorectal surgery

Directory of Open Access Journals (Sweden)

Luiz Eduardo Imbelloni

2006-12-01

Full Text Available JUSTIFICATIVA E OBJETIVOS: Estudar baixa dose de bupivacaína hipobárica a 0,15% e hiperbárica a 0,5% em pacientes ambulatoriais para procedimentos cirúrgicos anorretais. MÉTODO: Dois grupos de 50 pacientes, estado físico ASA I e II, submetidos a intervenções cirúrgicas anorretais, em posição de canivete, receberam 6 mg de bupivacaína a 0,15% hipobárica na posição cirúrgica (Grupo 1 ou 6 mg de bupivacaína a 0,5% hiperbárica na posição sentada por cinco minutos, e depois colocados em posição de canivete (Grupo 2. Avaliou-se bloqueio sensitivo e motor, primeira micção, deambulação, complicações e necessidade de analgésico. Foram acompanhados até o terceiro dia de pós-operatório e questionados sobre cefaléia pós-punção ou sintomas neurológicos transitórios, e até 30 dias sobre complicação neurológica permanente. Para análise estatística foram utilizados os testes t de Student, mediana de Mood e Exato de Fisher, sendo p JUSTIFICATIVA Y OBJETIVOS: Estudiar baja dosis de bupivacaína hipobárica a 0,15% e hiperbara a 0,5% en pacientes ambulatoriales para procedimientos quirúrgicos anorrectales. MÉTODO: Dos grupos de 50 pacientes, estado físico ASA I y II, sometidos a intervenciones quirúrgicas anorrectales, en posición de cuchilla, recibieron 6 mg de bupivacaína a 0,15% hipobárica en la posición quirúrgica (Grupo 1 o 6 mg de bupivacaína a 0,5% hiperbara en la posición sentada por cinco minutos, y después colocados en posición de cuchilla (Grupo 2. Se evaluaron los bloqueos sensitivo y motor, primera micción, deambulación, complicaciones y necesidad de analgésico. Se monitorearon hasta el tercer día de postoperatorio y preguntados sobre cefalea pospunción o síntomas neurológicos temporales, y hasta 30 días sobre complicación neurológica permanente. Para análisis estadística fueron utilizadas las pruebas t de Student, mediana de Mood y Exacto de Fisher, siendo p BACKGROUND AND

Thermodynamic and transport properties of (1,2-ethanediol + 1-nonanol) at temperatures from (298.15 to 313.15) K

International Nuclear Information System (INIS)

Zorebski, Edward; Lubowiecka-Kostka, Beata

2009-01-01

Densities and kinematic viscosities have been measured for (1,2-ethanediol + 1-nonanol) over the temperature range from (298.15 to 313.15) K. The speeds of sound in those mixtures within the temperature range from (293.15 to 313.15) K have been measured as well. Using the measurement results, the molar volumes, isentropic compressibility coefficients, molar isentropic compressibilities, and the corresponding excess and deviation values (excess molar volumes, excess isentropic compressibility coefficients, excess molar isentropic compressibilities, differently defined deviations of the speed of sound, and dynamic viscosity deviations) were calculated. The excess Gibbs free energies estimated by the use of the UNIQUAC model are also reported. The excess molar volumes and Gibbs free energies are positive, whereas the compressibility excesses are s-shaped. The excess and deviation values are expressed by Redlich-Kister polynomials and discussed in terms of variations of the structure of the system caused by the participation of two different alcohol molecules in the dynamic intermolecular association process through hydrogen bonding. The effect of temperature is discussed. The predictive abilities of the McAllister equation for viscosities of the mixtures under test have also been examined

James Lee Byars 1/2 an autobiography, sourcebook

CERN Document Server

Byars, James Lee; Eleey, Peter

2014-01-01

"I see my autobiography as an arbitrary segment of so many pages of time, of things that I have paid attention to at this point in my life," wrote James Lee Byars (1932-1997) in 1969. He was then 37, about half the average male lifespan at the time, and accordingly thought it appropriate to write his "1/2 autobiography." Byars' art ranged from highly refined objects to extremely minimal performance and events, and books, ephemera and correspondence that he distributed widely among friends and colleagues. Today, more than 15 years after his death, assessments of his art must negotiate Byars' performance of his charismatic self in his life and art. For his first major posthumous survey in the US, exhibition curators Magalí Arriola and Peter Eleey decided to produce a catalogue in two "halves," playing on his "1/2 autobiography": a catalogue of the exhibition itself, including new scholarship, and a sourcebook of primary documents. 1/2 an Autobiography, Sourcebook constitutes the latter volume--a reference guid...

Universal emergence of PageRank

Energy Technology Data Exchange (ETDEWEB)

Frahm, K M; Georgeot, B; Shepelyansky, D L, E-mail: frahm@irsamc.ups-tlse.fr, E-mail: georgeot@irsamc.ups-tlse.fr, E-mail: dima@irsamc.ups-tlse.fr [Laboratoire de Physique Theorique du CNRS, IRSAMC, Universite de Toulouse, UPS, 31062 Toulouse (France)

2011-11-18

The PageRank algorithm enables us to rank the nodes of a network through a specific eigenvector of the Google matrix, using a damping parameter {alpha} Element-Of ]0, 1[. Using extensive numerical simulations of large web networks, with a special accent on British University networks, we determine numerically and analytically the universal features of the PageRank vector at its emergence when {alpha} {yields} 1. The whole network can be divided into a core part and a group of invariant subspaces. For {alpha} {yields} 1, PageRank converges to a universal power-law distribution on the invariant subspaces whose size distribution also follows a universal power law. The convergence of PageRank at {alpha} {yields} 1 is controlled by eigenvalues of the core part of the Google matrix, which are extremely close to unity, leading to large relaxation times as, for example, in spin glasses. (paper)

Universal emergence of PageRank

International Nuclear Information System (INIS)

Frahm, K M; Georgeot, B; Shepelyansky, D L

2011-01-01

The PageRank algorithm enables us to rank the nodes of a network through a specific eigenvector of the Google matrix, using a damping parameter α ∈ ]0, 1[. Using extensive numerical simulations of large web networks, with a special accent on British University networks, we determine numerically and analytically the universal features of the PageRank vector at its emergence when α → 1. The whole network can be divided into a core part and a group of invariant subspaces. For α → 1, PageRank converges to a universal power-law distribution on the invariant subspaces whose size distribution also follows a universal power law. The convergence of PageRank at α → 1 is controlled by eigenvalues of the core part of the Google matrix, which are extremely close to unity, leading to large relaxation times as, for example, in spin glasses. (paper)

Data Extraction Based on Page Structure Analysis

Directory of Open Access Journals (Sweden)

Ren Yichao

2017-01-01

Full Text Available The information we need has some confusing problems such as dispersion and different organizational structure. In addition, because of the existence of unstructured data like natural language and images, extracting local content pages is extremely difficult. In the light of of the problems above, this article will apply a method combined with page structure analysis algorithm and page data extraction algorithm to accomplish the gathering of network data. In this way, the problem that traditional complex extraction model behave poorly when dealing with large-scale data is perfectly solved and the page data extraction efficiency is also boosted to a new level. In the meantime, the article will also make a comparison about pages and content of different types between the methods of DOM structure based on the page and HTML regularities of distribution. After all of those, we may find a more efficient extract method.

A thorough spring-clean for CERN's Web pages

CERN Multimedia

2001-01-01

This coming Tuesday will see the unveiling of CERN's new user pages on the Web. Their simplified layout and design will make everybody's lives a whole lot easier. Stand by for Tuesday 17 April when, as announced in the Weekly Bulletin of 2 April (n°14/2001), the new newly-designed users welcome page will be hitting our screens as the default CERN home page. But don't worry, if you've got the blues for the good old blue-green home page it's still in service and, to ensure a smooth transition, will be maintained in parallel until 25 May. But in all likelihood you'll be quickly won over by the new-look pages, which are so much simpler to use. Welcome to the new Web! The aim of this revamp, led by the WPE (Web Public Education) group, is to simplify and introduce a more logical hierarchy into the menus and welcome pages on CERN's Intranet. In a second stage, the 'General Public' pages will get a similar makeover. The fact is that the number of links on the user pages, and in particular the welcome page...

Technical Training: Places available

CERN Multimedia

Monique Duval

2005-01-01

The number of places available may vary. Please check our Web site to find out the current availability. Places are available on the following courses: Joint PVSS JCOP Framework: 8 - 12.8.2005 (5 days) FrontPage 2003 - niveau 1 : 1 - 2.9.2005 (2 jours) Utilisation des fichiers PDF avec ACROBAT 7.0 : 5.9.2005 (1 jour) LabVIEW Basics 1 : 5 - 7.9.2005 (3 days, dates to be confirmed) Introduction à Windows XP au CERN : 12.9.2005 (1 demi-journée) FrontPage 2003 - niveau 2 : 15 - 16.9.2005 (2 jours) AutoCAD 2005 - niveau 1 : 22, 23, 28, 29.9.2005 (4 jours) MAGNE-05 - Magnétisme pour l'électrotechnique : 27 - 29.9.2005 (3 jours) LabVIEW Application Development (Intermediate I): 5 - 7.12.2005 (3 days) LabVIEW Advanced Programming (Intermediate 2): 8 - 9.12.2005 (2 days) ENSEIGNEMENT TECHNIQUE TECHNICAL TRAINING Monique Duval 74924 technical.training@cern.ch

Page 5

African Journals Online (AJOL)

ezra

Page 5. Stress Management By Library And Information Science Professionals In Nigerian University Libraries. BY ... relationships, and other considerations that can be ... Building a dynamic ... and maintaining current awareness of emerging.

Dental caries in six, 12 and 15 year old Venda children in South Africa

African Journals Online (AJOL)

Dental caries in six, 12 and 15 year old Venda children in South Africa. ... The treatment required were mostly extractions and simple fillings, the majority of ... This study indicates that preventive oral health measures should be implemented on ...

Synthesis of (9Z, 12E-, (9E, 12Z-[1-¹⁴C]-linoleic acid, (9Z, 12Z, 15E-, (9E, 12Z, 15Z-[1-¹⁴C]-linolenic acid and (5Z, 8Z, 11Z, 14E-[1-¹⁴C]-arachidonic acid

Directory of Open Access Journals (Sweden)

Enard, Thierry

1996-04-01

Full Text Available Trans polyunsaturated fatty acids are produced in vegetable oils during heat treatment (240-250 °C.ln order to study the metabolic pathway of 9c, 12t and 9t, 12c linoleic acid and 9c, 12c, 15t and 9t, 12c, 15c linolenic acid, these products were prepared labelled with carbon 14 in the carboxylic position. 5c, 8c, 11c, 14t-Arachidonic acid was also labelled on the carboxylic position with carbon 14 in order to study its physiological effects. To introduce the labelling (E-bromo precursors with a 17 carbons chain or a 19 carbon chain were needed. The different syntheses were done by elongation steps and creation of cis double bonds via highly stereospecific Wittig reactions. The radioactive carbon atom was introduced from [¹⁴C]-potassium cyanide. The final radioactive fatty acids had a specific activity greater than 50 mCi/mmol and a radioactive purity better than 99 % for linoleic and linolenic and better than 98.6 % for arachidonic acid.

Probabilistic relation between In-Degree and PageRank

NARCIS (Netherlands)

Litvak, Nelli; Scheinhardt, Willem R.W.; Volkovich, Y.

2008-01-01

This paper presents a novel stochastic model that explains the relation between power laws of In-Degree and PageRank. PageRank is a popularity measure designed by Google to rank Web pages. We model the relation between PageRank and In-Degree through a stochastic equation, which is inspired by the

Rotavirus e adenovirus em crianças de 0-5 anos hospitalizadas com ou sem gastrenterite em Goiânia - GO., Brasil Rotavirus and adenovirus in children 0-5 years of age with or without gastrenteritis in hospitals from Goiânia - GO, Brazil

Directory of Open Access Journals (Sweden)

Divina das Dores de Paula Cardoso

1992-10-01

Full Text Available De junho/1987 a julho/1990 foram estudadas 557 amostras fecais de crianças hospitalizadas de 0-5 anos de idade, na cidade de Goiânia-GO., para detecção de rotavírus e adenovírus. Destas, 291 provinham de crianças diarréicas e 266 de não diarréicas. Das amostras não diarréicas, 64 eram provenientes de crianças de berçário. Das 557 amostras, 261 foram analisadas pela imunomicroscopia eletrônica (IME, eletroforese em gel de poliacrilamida (EGPA-SDS e ensaio imunoenzimático para rotavírus e adenovírus (EIARA e as demais apenas pela EGPA e EIARA. Rotavírus e adenovírus mostraram positividade de 17,2% e 2,1% respectivamente, e na condição de diarréia ou não, observou-se percentuais de 29,2% e 4,1% respectivamente para rotavírus (pIn order to detect rotavirus and adenovirus 557 feces samples from hospitalized children (0-5 years of age were analysed from June 1987 to July 1990 in Goiânia-city.Two hundred and ninety one samples were from children with diarrhoea and 266 were from children without diarrhoea. Amongst this later group, 64 samples were from children from the nursery. Two hundred and sixty one out of 557 samples were analysed by immunoelectron microscopy (IEM, polyacrylamide gel electrophoresis (SDS-PAGE and enzymatic immunoassay for rotavirus and adenovirus (EIARA whereas the rest (296 samples were analysed by SDS-PAGE and EIARA. Positivity of rotavirus and adenovirus was 17.2% and 2.1% respectively. Concerning rotavirus and adenovirus there was 29.2% and 2.4% positivity within the group with diarrhoea and 4.1% and 1.5% positivity amongst children without diarrhoea (p<0.05. Rotavirus were more prevalent amongst children which age ranged from 1 to 11 months of age. No newborn child from the nursery was positive for rotavirus. Adenovirus were detected amongst children from 1 to 3 years of age. Rotavirus circulation peak occurred between May and August (p<0.05 and no positive case was detected from December to

Inhibition of 12/15 lipoxygenase by curcumin and an extract from Curcuma longa L.

Science.gov (United States)

Bezáková, Lýdia; Košťálová, Daniela; Obložinský, Marek; Hoffman, Peter; Pekárová, Mária; Kollárová, Renáta; Holková, Ivana; Mošovská, Silvia; Sturdík, Ernest

2014-02-01

Curcumin (diferuloylmethane) is an orange-yellow secondary metabolic compound from the rhizome of turmeric (Curcuma longa L.), a spice often found in curry powder. It is one of the major curcuminoids of turmeric. For centuries, curcumin has been used in some medicinal preparations or as a food colouring agent. A variety of enzymes that are closely associated with inflammation and cancer were found to be modulated by curcumin. This paper summarized the results of the inhibitory effect of curcumin and a Curcuma longa L. ethanolic extract on lipoxygenase from the rat lung cytosolic fraction. The positional specificity determination of arachidonic acid dioxygenation by RP- and SP-HPLC methods showed that in a purified enzyme preparation from the rat lung cytosol the specific form of lipoxygenase (LOX) is present exhibiting 12/15-LOX dual specificity (with predominant 15-LOX activity). The inhibitory activity of curcumin and Curcuma longa extract on LOX from cytosolic fraction of rat lung was expressed in the percentage of inhibition and as IC50. Lineweaver-Burk plot analysis has indicated that curcumin is the competitive inhibitor of 12/15 LOX from the rat lung cytosolic fraction.

Suitability of Sr{sub 0.5}Ba{sub 0.5-x}Ce{sub x}Fe{sub 12-y}Ni{sub y}O{sub 19} co-precipitated nanomaterials for inductor applications

Energy Technology Data Exchange (ETDEWEB)

Iqbal, Muhammad Javed, E-mail: mjiqauchem@yahoo.co [Surface and Solid State Chemistry Laboratory, Department of Chemistry, Quaid-i-Azam University, Islamabad 45320 (Pakistan); Farooq, Saima [Surface and Solid State Chemistry Laboratory, Department of Chemistry, Quaid-i-Azam University, Islamabad 45320 (Pakistan)

2010-03-18

The present investigation deals with the synthesis and characterization of Ce-Ni ions substituted nanocrystalline strontium-barium hexaferrites (Sr{sub 0.5}Ba{sub 0.5}Fe{sub 12}O{sub 19}) by the chemical co-precipitation method, with focus on the optimization of annealing temperature for the hexagonal phase development. The synthesis involves co-precipitation of aqueous solutions of water-soluble salts of strontium, barium and iron, at pH 9 using an ammonium hydroxide solution as a precipitating agent. The optimum temperature of annealing, necessary for the hexagonal phase development, is determined on the basis of thermo-gravimetric analysis (TGA). The co-precipitate is annealed at a temperature of 1323 K for 6 h, to produce a single magnetoplumbite phase of Sr-Ba hexaferrites, with the corresponding average crystallite size ranging from 36 to 48 nm. Observed changes in the lattice structure determined by the powder X-ray diffraction (XRD) studies are not in contradiction with the results of TGA. DC-electrical resistivity increases from 1.8 x 10{sup 10} to 12.5 x 10{sup 10} {Omega} cm, whereas the drift mobility, dielectric constant and dielectric loss tangent decrease with increasing the Ce-Ni content of the samples. Material of above-mentioned characteristics is considered to be suitable for applications in the microwave and surface mount devices (SMD) for fabricating the multilayer chip inductors (MLCI).

Personal and Public Start Pages in a library setting

NARCIS (Netherlands)

Kieft-Wondergem, Dorine

Personal and Public Start Pages are web-based resources. With these kind of tools it is possible to make your own free start page. A Start Page allows you to put all your web resources into one page, including blogs, email, podcasts, RSSfeeds. It is possible to share the content of the page with

Structural evolution of bias sputtered LiNi0.5Mn1.5O4 thin film cathodes for lithium ion batteries

International Nuclear Information System (INIS)

Su, Shih-Hsuan; Chiu, Kuo-Feng; Leu, Hoang-Jyh

2014-01-01

LiNi 0.5 Mn 1.5 O 4 (LNMO) thin films have been deposited on stainless steel substrates using radio frequency (f = 13.56 MHz) magnetron sputtering, followed by thermal annealing in ambient atmosphere. Various negative biases were applied on the substrates during deposition. The structural evolution of LNMO thin films under different negative biases has been investigated and characterized by X-ray diffraction. All of the deposited films exhibit a crystalline spinel structure with a space group of Fd-3m, which is a so-called disordered phase. The results also indicate that particle size decreases with increasing negative bias. The electrochemical properties of the LNMO thin films as cathode materials for lithium ion batteries were investigated. Two distinctive voltage plateaus at ∼ 4.7 V and at ∼ 4.0 V (vs. Li + /Li) can be observed in the discharge curves, corresponding to the reactions of the disordered phase. The capacity of LNMO thin film electrodes under suitable negative bias can be optimized. - Highlights: • LiNi 0.5 Mn 1.5 O 4 thin films have been deposited on stainless steel substrates. • Various negative biases were applied on the substrates during deposition. • The particle sizes of LNMO thin films decrease with increasing negative bias

Kerma factors and reaction cross sections for n + /sup 12/C between 15 and 18 MeV

Energy Technology Data Exchange (ETDEWEB)

Tornow, W.; Chen, Z.M.; Baird, K.; Walter, R.L.

1988-07-01

Differential elastic and inelastic (4.44 MeV) neutron scattering cross sections from /sup 12/C are presented at 15.6, 16.8 and 17.3 MeV. The existing 18.2 MeV differential cross-section data were combined with newly measured analysing power data to parametrise neutron scattering at this energy. The /sup 12/C recoil kerma factors were calculated and reaction cross sections were obtained from a phase-shift analysis and coupled channel analyses in the 15.6-18.2 MeV energy range.

High temperature strength and aging behavior of 12%Cr-15%Mn austenitic steels

International Nuclear Information System (INIS)

Miyahara, Kazuya; Bae, Dong-Su; Sakai, Hidenori; Hosoi, Yuzo

1993-01-01

High Mn-Cr austenitic steels are still considered to be an important high temperature structural material from the point of view of reduced radio-activation. The objective of the present study is to make a fundamental research of mechanical properties and microstructure of 12%Cr-15%Mn austenitic steels. Especially the effects of alloying elements of V and Ti on the mechanical properties and microstructure evolution of high Mn-Cr steels were studied. Precipitation behaviors of carbides, nitrides and σ phase are investigated and their remarkable effects on the high temperature strength are found. The addition of V was very effective for strengthening the materials with the precipitation of fine VN. Ti was also found to be beneficial for the improvement of high temperature strength properties. The results of high temperature strengths of the 12Cr-15Mn austenitic steels were compared with those of the other candidate and/or reference materials, for example, JFMS (modified 9Cr-2Mo ferritic stainless steel) and JPCAs (modified 316 austenitic stainless steels). (author)

Monte Carlo methods of PageRank computation

NARCIS (Netherlands)

Litvak, Nelli

2004-01-01

We describe and analyze an on-line Monte Carlo method of PageRank computation. The PageRank is being estimated basing on results of a large number of short independent simulation runs initiated from each page that contains outgoing hyperlinks. The method does not require any storage of the hyperlink

Evaluating and Enhancing Women's Participation in Scientific and ...

Indian Academy of Sciences (India)

TSC

National Task Force for Women in Science. सत्यमेव जयते. Government of India. Ministry of Science and Technology. Department of Science and Technology. New Delhi. Page 2. Page 3. Page 4. Page 5. Page 6. Page 7. Page 8. Page 9. Page 10. Page 11. Page 12. Page 13. Page 14. Page 15. Page 16. Page 17 ...

Polymorphism of the iron doped strontium aluminate SrAl1.5Fe0.5O4

International Nuclear Information System (INIS)

Desmoulins, H.; Malo, S.; Boudin, S.; Caignaert, V.; Hervieu, M.

2009-01-01

The partial substitution of Al by Fe atoms in SrAl 2 O 4 allowed to stabilize four stuffed tridymite derivative structures SrAl 1.5 Fe 0.5 O 4 . The different phases have been characterized by TEM and XRPD techniques. Two are isotypes of those observed for the undoped oxides, namely the hexagonal phase with √(3)Ax√(3)AxC (with A and C being the tridymite unit cell parameters) and space group P6 3 and the monoclinic one with Ax√(3)AxC, β∼93 o and space group P2 1 , with a synthesis temperature lower than the one required for SrAl 2 O 4 . By annealing, two original phases, denoted O 1 and O 2 , are obtained; they are metrically similar (3Ax√(3)AxC and β∼90 o ) and only differ by their space groups. The TEM study showed that the transitions between the different phases follow topotactic mechanisms, through the formation of twinning boundaries, antiphase boundaries and planar defects. The annealed sample exhibits a mesomorph state and a reversible transition from this semi-ordered state to a crystalline phase. This dynamic transition takes place over a very wide temperature range from 620 to 1120 deg. C. The reversibility of the transition has been studied by DSC measurements. The crystallization energy of the orthorhombic phases is of the order of 10 J/g, at T∼622 deg. C as T decreases. The variation of the peak height observed as the annealing temperature increases is explained by the complex microstructures, which create an ill-defined energy barrier. Structural models related to the stuffed tridymite derivative structures are proposed for the new forms of the ferri-aluminate. - Graphical abstract: Four tridymite derivative structures SrAl 1.5 Fe 0.5 O 4 have been characterized. Two phases are isotypes of those observed for SrAl 2 O 4 . Two 'orthorhombic' original phases are characterized by superstructures. The transitions between the different phases follow topotactic mechanisms. The transition LT→HT takes place from 620 to 1120 deg. C, explained

Hydrogen diffusion in La{sub 1.5}Nd{sub 0.5}MgNi{sub 9} alloy electrodes of the Ni/MH battery

Energy Technology Data Exchange (ETDEWEB)

Volodin, A.A. [Institute of Problems of Chemical Physics of RAS, Chernogolovka (Russian Federation); Denys, R.V. [Institute for Energy Technology, P.O. Box 40, Kjeller NO2027 (Norway); Tsirlina, G.A. [Department of Electrochemistry, Moscow State University, Moscow (Russian Federation); Tarasov, B.P. [Institute of Problems of Chemical Physics of RAS, Chernogolovka (Russian Federation); Fichtner, M. [Institute of Nanotechnology, Karlsruhe Institute of Technology, Karlsruhe (Germany); Yartys, V.A., E-mail: volodymyr.yartys@ife.no [Institute for Energy Technology, P.O. Box 40, Kjeller NO2027 (Norway)

2015-10-05

Highlights: • Hydrogen diffusion in the La{sub 1.5}Nd{sub 0.5}MgNi{sub 9} alloy electrode was studied. • Various techniques of low amplitude potentiostatic data treatment were used. • D{sub H} demonstrates a maximum (2 × 10{sup −11} cm{sup 2}/s) at 85% of discharge of the electrode. • Maximum is associated with a conversion of β-hydride into a solid α-solution. • Optimization of material and electrode will allow high discharge rates. - Abstract: Hydrogen diffusion in the La{sub 1.5}Nd{sub 0.5}MgNi{sub 9} battery electrode material has been studied using low amplitude potentiostatic experiments. Complex diffusion behavior is examined in frames of electroanalytical models proposed for the lithium intercalation materials. Hydrogen diffusion coefficient D{sub H} changes with hydrogen content in the metal hydride anode electrode and has a maximum of ca. 2 × 10{sup −11} cm{sup 2}/s at ca. 85% of discharge. Such a behavior differs from the trends known for the transport in lithium battery materials, but qualitatively agrees with the data for the highly concentrated β-PdH{sub x}.

Training Activity Summary Page (TASP) Campus

Data.gov (United States)

U.S. Department of Health & Human Services — The Training Activity Summary Page (formerly the Training Exit Survey Cover Page) dataset contains data about each training event. This dataset includes information...

Evaluating informational behaviour of users of the page “com açucar, com afeto” on Facebook

Directory of Open Access Journals (Sweden)

Celio Andrade Santana

2016-11-01

Full Text Available This research presents the evaluation of information behaviour of users in the page “Com Açucar, Com Afeto” on Facebook. This page is focused on Brazilian popular music (MPB and the interaction between the users occurs through Facebook posts. To identify the information behaviour of the users in this page, we had assessed a total of 120 posts and elements such as "like", "share" and “comments” from each one of these posts in one-day interval and also we had interviewed 15 users to collect data about information needs on the page. The data collection was based on the qualitative method netnography from the analysis of user behaviour and we conducted interviews to collect complementary data. The collected data were analyzed based on the information behavior model developed by Tom Wilson. The results show that users looking for the group to meet cognitive and psychological information needs enabled by music and this behaviour are augmented when they belong to social groups (network.

Errata Resonance, Vol.20, No.12, 2015. Rajaram Nityananda, Sun ...

Indian Academy of Sciences (India)

IAS Admin

Resonance, Vol.20, No.12, 2015. Rajaram Nityananda, Sun, Sky and Clouds: Where Light and Matter Meet. Page 1121: The correct Figure 5 is reproduced below: Resonance, Vol.20, No.11, 2015. Anil Kumar, Felix Bloch (1905–1983). Page 956: Para 1, Line 5, 'also from Zürich' should be read as 'from nearby Bern'.

PageRank in scale-free random graphs

NARCIS (Netherlands)

Chen, Ningyuan; Litvak, Nelli; Olvera-Cravioto, Mariana; Bonata, Anthony; Chung, Fan; Pralat, Paweł

2014-01-01

We analyze the distribution of PageRank on a directed configuration model and show that as the size of the graph grows to infinity, the PageRank of a randomly chosen node can be closely approximated by the PageRank of the root node of an appropriately constructed tree. This tree approximation is in

Mock Pages Are a Valid Construct for Assessment of Clinical Decision Making and Interprofessional Communication.

Science.gov (United States)

Boehler, Margaret L; Schwind, Cathy J; Markwell, Stephen J; Minter, Rebecca M

2017-01-01

Answering pages from nurses about patients in need of immediate attention is one of the most difficult challenges a resident faces during their first days as a physician. A Mock Page program has been developed and adopted into a national surgical resident preparatory curriculum to prepare senior medical students for this important skill. The purpose of this study is to assess standardized mock page cases as a valid construct to assess clinical decision making and interprofessional communication skills. Mock page cases (n = 16) were administered to 213 senior medical students from 12 medical schools participating in a national surgical resident preparatory curriculum in 2013 and 2014. Clinical decision making and interprofessional communication were measured by case-specific assessments evaluating these skills which have undergone rigorous standard-setting to determine pass/fail cut points. Students' performance improved in general for both communication and clinical decision making over the 4-week course. Cases have been identified that seem to be best suited for differentiating high- from low-performing students. Chest pain, pulmonary embolus, and mental status change cases posed the greatest difficulty for student learners. Simulated mock pages demonstrate an innovative technique for training students in both effective interprofessional communication and management of common postoperative conditions they will encounter as new surgical interns.

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African Journals Online (AJOL)

Fr. Ikenga

from vessels or pipelines. Article 25 .... material for the prevention, mitigation or elimination of harm to its coastline or related interests from ...... Study of Selected Countries in Sub-Saharan Africa (Washington, D.C.: The International Bank for ...

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African Journals Online (AJOL)

Fr. Ikenga

2017-06-17

Jun 17, 2017 ... authorized the Committee of Ministers to act on behalf of the Council by way ... the European Court of Human Rights which is the thrust of this work. .... 34 and may by unanimous vote either (a) declare it inadmissible or strike it ...

Banner Pages on the New Printing Infrastructure

CERN Multimedia

2006-01-01

Changes to the printing service were announced in CERN Bulletin No. 37-38/2006. In the new infrastructure, the printing of the banner page has been disabled in order to reduce paper consumption. Statistics show that the average print job size is small and the paper savings by not printing the banner page could be up to 20 %. When each printer is moved onto the new infrastructure banner page printing will be disabled. In the case of corridor printers which are shared by several users, the Helpdesk can re-enable banner page printing upon request. We hope ultimately to arrive at a situation where banner page printing is enabled on fewer than 10% of printers registered on the network. You can still print banner pages on printers where it has been centrally disabled by using Linux. Simply add it to your print job on the client side by adding the -o job-sheets option to your lpr command. Detailed documentation is available on each SLC3/4 under the following link: http://localhost:631/sum.html#4_2 Please bea...

Women's Pages or People's Pages: The Production of News for Women in the "Washington Post" in the 1950s.

Science.gov (United States)

Yang, Mei-ling

1996-01-01

Examines the women's pages of the "Washington Post" in the 1950s that were edited by Marie Sauer. States that the newspaper turned down Sauer's request in 1952 to change from traditional women's pages to a unisex "lifestyle" section. Analyzes how women's pages were shaped by factors such as advertising, professional values, and…

Characters of alloy Zr-0.4%Mo-0.5%Fe-0.5%Cr post heat treatment and cold rolling

International Nuclear Information System (INIS)

Sungkono; Siti Aidah

2014-01-01

Research and development of Zr-Mo-Fe-Cr alloys aimed to obtain PWR fuel element structure material with high burn up. In this study of the Zr-0.4%Mo-0.5%Fe-0.5%Cr alloys was prepared from zirconium sponge, molybdenum, iron and chromium powder. The alloy were heat treated at varying temperatures of 650 and 750 °C and retention time of 1, 1.5 and 2 hours. The objectives of this research was to obtain effect of thickness reduction on the character of Zr-0.4%Mo-0.5%Fe-0.5%Cr alloy. The results of this experiment showed that the microstructures of Zr-0.4%Mo-0.5%Fe-0.5%Cr alloy after heat treatment and cold rolling exhibits that the higher of the thickness reduction has applied on the alloy caused the microstructure to evolve from deformed equiaxial grains into flat bar grains and then into deformed flat bar grains. However, the higher of the temperature and the retention time then the larger grain structures so that the cold rolling causes the shape of the grains structure into a flat bar with a relatively larger size which affects the lower hardness. The Zr-0.4%Mo-0.5%Fe-0.5%Cr alloy after heat treatment (650-750°C; 1.5-2 hours) can undergo cold deformation without cracking at a thickness reduction between 5 to 15%. (author)

Magnetic and magnetocaloric properties of the alloys Mn2-xFexP0.5As0.5 (0⩽x⩽0.5)

Science.gov (United States)

Gribanov, I. F.; Golovchan, A. V.; Varyukhin, D. V.; Val'kov, V. I.; Kamenev, V. I.; Sivachenko, A. P.; Sidorov, S. L.; Mityuk, V. I.

2009-10-01

The results of investigations of the magnetic and magnetocaloric properties of alloys from the system Mn2-xFexP0.5As0.5 (0⩽x⩽0.5) are presented. The magnetization measurements are performed in the temperature interval 4.2-700K in magnetic fields up to 8T. The entropy changes ΔS with the magnetic field changing from 0 to 2, 4, 5, and 8T are determined from the magnetization isotherms obtained near temperatures of the spontaneous appearance of the ferromagnetic state (TC,TAF -FM1), and the curves ΔS(T0) are constructed. It is found that TC and TAF-FM1 decrease monotonically with increasing manganese concentration and that the ferromagnetic phase is completely suppressed in Mn1.5Fe0.5P0.5As0.5. It is found that the concentration dependences of the maximum entropy jump (and the corresponding cold-storage capacity) and the magnitudes of the ferromagnetic moment of the unit cell with maxima for x =0.9 and 0.8 show extremal behavior. The data obtained are compared with the ferromagnetic moments calculated from first principles by the Korringa-Kohn-Rostoker method using the coherent-potential approximation (KKR-CPA)—the discrepancy for 0.5⩽x⩽0.7 is attributed to the appearance of an antiferromagnetic component of the magnetic structure. It is concluded that the alloys Mn2-xFexP0.5As0.5 have promise for use in magnetic refrigerators operating at room temperature.

Thermal studies of Se85-xTe15Inx (x = 3,6,9,12) glasses

International Nuclear Information System (INIS)

Sushama, D.; George, Achamma; Asokan, S.

2011-01-01

Bulk glasses of compositions Se 85-x Te 15 In x (x = 3,6,9,12) are prepared by melt quenching technique and Differential scanning calorimetry (DSC) is employed to study the thermal stability, crystallization mechanism as well as specific heat of these glasses. It is found that the addition of indium increases the glass transition temperature. From the heating rate dependence of the glass transition temperature the activation energy of glass transition is determined using Kissinger's equation for non-isothermal crystallization of materials. An attempt has been made to explain the variation in the value of T c , T p and ΔC p for the composition Se 73 Te 15 In 12 using rigidity percolation threshold (RPT). From the values of (T c -T g ) the stable glass system is determined.

(Vapour + liquid) equilibria for the binary mixtures (1-propanol + dibromomethane, or + bromochloromethane, or + 1,2-dichloroethane or + 1-bromo-2-chloroethane) at T = 313.15 K

International Nuclear Information System (INIS)

Gil-Hernandez, V.; Garcia-Gimenez, P.; Otin, S.; Artal, M.; Velasco, I.

2005-01-01

Isothermal (vapour + liquid) equilibria (VLE) at 313.15 K have been measured for liquid 1-propanol + dibromomethane, or + bromochloromethane or + 1,2-dichloroethane or + 1-bromo-2-chloroethane mixtures. The VLE data were reduced using the Redlich-Kister equation taking into consideration the vapour phase imperfection in terms of the 2nd molar virial coefficients. The excess molar Gibbs free energies of all the studied mixtures are positive and ranging from 794 J·mol -1 for (1-propanol + bromochloromethane) and 1052 J·mol -1 for (1-propanol + 1-bromo-2-chloroethane), at x = 0.5. The experimental results are compared with modified UNIFAC predictions

Neutron scattering from [sup 12]C between 15. 6 and 17. 3 MeV

Energy Technology Data Exchange (ETDEWEB)

Chen, Z.M.; Baird, K.; Howell, C.R.; Roberts, M.L.; Tornow, W.; Walter, R.L. (Duke Univ., Durham, NC (United States). Dept. of Physics Triangle Universities Nuclear Lab., Durham, NC (United States))

1993-06-01

The differential cross section [sigma]([theta]) for neutron elastic scattering from [sup 12]C and for inelastic scattering from the 4.44 MeV state was measured at 15.57, 16.75 and 17.29 MeV. The [sigma]([theta]) data, together with published analysing power A[sub y]([theta]) data, were analysed in the framework of the spherical optical model and in the coupled-channels formalism. It was concluded that the present [sup 12]C(n,n)[sup 12]C data and published data at higher energies appear to be well suited for determining properties of valence single-particle excitations in [sup 11]C via an iterative-moment approach or a dispersive optical-model analysis. (author).

12/15-Lipoxygenase Inhibition Reverses Cognitive Impairment, Brain Amyloidosis, and Tau Pathology by Stimulating Autophagy in Aged Triple Transgenic Mice.

Science.gov (United States)

Di Meco, Antonio; Li, Jian-Guo; Blass, Benjamin E; Abou-Gharbia, Magid; Lauretti, Elisabetta; Praticò, Domenico

2017-01-15

The 12/15-lipoxygenase (12/15-LO) enzyme is upregulated in the brains of patients with Alzheimer's disease (AD), and its expression levels influence the onset of the AD-like phenotype in mouse models. However, whether targeting this pathway after the neuropathology and behavioral impairments have been established remains to be investigated. Triple transgenic (3xTg) mice received either PD146176-a selective and specific pharmacological inhibitor of 12/15-LO-or placebo starting at 12 months of age for 12 weeks. They were then assessed for the effect of the treatment on neuropathologies and behavioral impairments. At the end of the study, mice in the control group showed a worsening of memory and learning abilities, whereas mice receiving PD146176 were undistinguishable from wild-type mice. The same group also had significantly lower amyloid beta levels and deposition, less tau neuropathology, increased synaptic integrity, and autophagy activation. Ex vivo and in vitro genetic and pharmacological studies found that the mechanism involved in these effects was the activation of neuronal autophagy. Our findings provide new insights into the disease-modifying action of 12/15-LO pharmacological inhibition and establish it as a viable therapeutic approach for patients with AD. Copyright © 2016 Society of Biological Psychiatry. Published by Elsevier Inc. All rights reserved.

INTERPLAY OF SORBITOL PATHWAY OF GLUCOSE METABOLISM, 12/15-LIPOXYGENASE, AND MITOGEN-ACTIVATED PROTEIN KINASES IN THE PATHOGENESIS OF DIABETIC PERIPHERAL NEUROPATHY

Science.gov (United States)

Stavniichuk, Roman; Shevalye, Hanna; Hirooka, Hiroko; Nadler, Jerry L.; Obrosova, Irina G.

2012-01-01

The interactions among multiple pathogenetic mechanisms of diabetic peripheral neuropathy largely remain unexplored. Increased activity of aldose reductase, the first enzyme of the sorbitol pathway, leads to accumulation of cytosolic Ca++, essentially required for 12/15-lipoxygenase activation. The latter, in turn, causes oxidative-nitrosative stress, an important trigger of MAPK phosphorylation. This study therefore evaluated the interplay of aldose reductase, 12/15-lipoxygenase, and MAPKs in diabetic peripheral neuropathy. In experiment 1, male control and streptozotocin-diabetic mice were maintained with or without the aldose reductase inhibitor fidarestat, 16 mg kg−1 d−1, for 12 weeks. In experiment 2, male control and streptozotocin-diabetic wild-type (C57Bl6/J) and 12/15-lipoxygenase-deficient mice were used. Fidarestat treatment did not affect diabetes-induced increase in glucose concentrations, but normalized sorbitol and fructose concentrations (enzymatic spectrofluorometric assays) as well as 12(S) hydroxyeicosatetraenoic concentration (ELISA), a measure of 12/15-lipoxygenase activity, in the sciatic nerve and spinal cord. 12/15-lipoxygenase expression in these two tissues (Western blot analysis) as well as dorsal root ganglia (immunohistochemistry) was similarly elevated in untreated and fidarestat-treated diabetic mice. 12/15-lipoxygenase gene deficiency prevented diabetesassociated p38 MAPK and ERK, but not SAPK/JNK, activation in the sciatic nerve (Western blot analysis) and all three MAPK activation in the dorsal root ganglia (immunohistochemistry). In contrast, spinal cord p38 MAPK, ERK, and SAPK/JNK were similarly activated in diabetic wild-type and 12/15-lipoxygenase−/− mice. These findings identify the nature and tissue specificity of interactions among three major mechanisms of diabetic peripheral neuropathy, and suggest that combination treatments, rather than monotherapies, can sometimes be an optimal choice for its management. PMID

KARAKTERISTIK MIKROSTRUKTUR DAN FASA PADUAN Zr- 0,3%Nb-0,5%Fe-0,5%Cr PASCA PERLAKUAN PANAS DAN PENGEROLAN DINGIN

Directory of Open Access Journals (Sweden)

Sungkono Sungkono

2015-07-01

Full Text Available KARAKTERISTIK MIKROSTRUKTUR DAN FASA PADUAN Zr-0,3%Nb-0,5%Fe-0,5%Cr PASCA PERLAKUAN PANAS DAN PENGEROLAN DINGIN. Logam paduan Zr-Nb-Fe-Cr dikembangkan sebagai material kelongsong elemen bakar dengan fraksi bakar tinggi untuk reaktor daya maju. Dalam penelitian ini telah dibuat paduan Zr-0,3%Nb-0,5%Fe-0,5%Cr yang mendapat perlakuan panas pada temperatur 650 dan 750°C dengan waktu penahanan 1–2 jam. Tujuan penelitian adalah mendapatkan karakter paduan Zr-0,3%Nb-0,5%Fe-0,5%Cr pasca perlakuan panas dan pengerolan dingin yaitu mikrostruktur, struktur kristal dan fasa-fasa yang ada dalam paduan. Hasil penelitian menunjukkan bahwa paduan Zr-0,3%Nb-0,5%Fe-0,5%Cr pasca perlakuan panas (650ºC, 1-2 jam mempunyai struktur butir ekuiaksial dengan ukuran butir bertambah besar seiring dengan bertambahnya waktu penahanan. Sementara itu, pasca perlakuan panas (750ºC, 1-2 jam terjadi perubahan mikrostruktur paduan dari butir ekuiaksial dan kolumnar menjadi butir ekuiaksial lebih besar. Paduan Zr-0,3%Nb-0,5%Fe-0,5%Cr pasca perlakuan panas (650°C, 1 jam dan (750°C, 1 jam tidak dapat dirol dingin dengan reduksi tebal 5 – 10%, sedangkan pasca perlakuan panas (650ºC, 2 jam dan (750°C, 1.5-2 jam mampu menerima deformasi dingin dengan reduksi ketebalan 5-10% tanpa mengalami keretakan. Senyawa Zr2Fe, ZrCr2 dan FeCr teridentifikai dari hasil uji kristalografi paduan Zr-0,3%Nb-0,5%Fe-0,5%Cr.   MICROSTRUCTURE AND PHASE CHARACTERISTICSOF Zr-0.3%Nb-0.5%Fe-0.5%Cr ALLOY POST HEAT TREATMENT AND COLD ROLLING. Zr-Nb-Fe-Cr alloys was developed as fuel elements cladding with high burn up for advanced power reactors. In this research has been made of Zr-0.3% Nb-0.5% Fe-0.5% Cr alloy were heat treated with varying temperatures at650 and 750°C for 1 until 2 hours. The objectives of this research was to obtain the character of Zr-0.3% Nb-0.5% Fe-0.5% Cr alloy post heat treatment and cold rolling, microstructure nomenclature, crystal structure and phases that presents in the

Optical and magnetic properties of solid solutions of In{sub 2-x}Mn{sub x}O{sub 3} (0.05, 0.10 and 0.15) nanoparticles

Energy Technology Data Exchange (ETDEWEB)

Khatoon, Sarvari [Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025 (India); Coolahan, Kelsey; Lofland, Samuel E. [Department of Physics and Astronomy, Rowan University, 201 Mullica Hill Road, Glassboro, NJ 08028 (United States); Ahmad, Tokeer, E-mail: tahmad3@jmi.ac.in [Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025 (India)

2012-12-25

Highlights: Black-Right-Pointing-Pointer Monophasic Mn-doped In{sub 2}O{sub 3} nanoparticles by solvothermal method for first time. Black-Right-Pointing-Pointer Plausible reaction mechanism and kinetics study using thermogravimetric analysis. Black-Right-Pointing-Pointer Highest surface area obtained so far as compared to the literature report. Black-Right-Pointing-Pointer Particle size decreases with increasing Mn concentration. Black-Right-Pointing-Pointer High degree of optical transparency ({approx}95%) is observed. - Abstract: Mn-doped indium oxide (In{sub 2-x}Mn{sub x}O{sub 3}) nanoparticles (7-12 nm) with x = 0.05, 0.10 and 0.15 have been synthesized by solvothermal method using oxalate precursor route for the first time. Powder X-ray diffraction studies showed the formation of monophasic cubic structure of In{sub 2-x}Mn{sub x}O{sub 3} solid solutions. X-ray diffraction and UV-visible reflectance studies revealed that Mn{sup 2+} ions are doped into the In{sub 2}O{sub 3} lattice. Reflectance measurements showed red shift in an energy band gap which decreases with an increase in the Mn concentration. Maximum surface area of 768 m{sup 2} g{sup -1} is obtained for In{sub 1.85}Mn{sub 0.15}O{sub 3} nanoparticles. Magnetization measurement revealed that all the samples are paramagnetic in nature with very weak antiferromagnetic interactions.

The Green Pages: Environmental Education Activities K-12.

Science.gov (United States)

Clearing, 1990

1990-01-01

Presented are 37 environmental science activities for students in grades K-12. Topics include water pollution, glaciers, protective coloration, shapes in nature, environmental impacts, recycling, creative writing, litter, shapes found in nature, color, rain cycle, waste management, plastics, energy, pH, landfills, runoff, watersheds,…

Optimal transfection methods and comparison of PK-15 and Dulac cells for rescue of chimeric porcine circovirus type 1-2.

Science.gov (United States)

Li, Jizong; Yu, Tianqi; Zhou, Jinzhu; Tu, Wei; Gao, Song; Liu, Xiufan

2014-11-01

A chimeric porcine circovirus type 1-2 (PCV1-2) infectious DNA clone has low transfection efficiency and exhibits low levels of proliferation. Electroporation and lipofection parameters were optimized for PK-15 and Dulac cells with the purpose of increasing the efficiency for rescuing infectious PCV1-2. Titers of PCV1-2 in Dulac cells were 100-fold higher than those in PK-15 cells following transfection. The electroporation efficiency into Dulac cells was high when three 400 μs pulses at 250 V with 6 μg of plasmid DNA was used, lipofection efficiency was high when the ratio of DNA to transfection reagent was 1:3. The proportion of infected cells was 55.6% compared with 44.2%, for the electroporation and lipofection techniques respectively. Virus titers were higher in Dulac cells, from 10(4.44) to 10(5.32)TCID50/mL compared with 10(1.90)-10(3.38)TCID(50)/mL for PK-15 cells. Dulac cells were more permissive to PCV1-2 than PK-15 cells regardless of the transfection technique. Copyright © 2014 Elsevier B.V. All rights reserved.

Slide 15

Indian Academy of Sciences (India)

First page Back Continue Last page Overview Graphics. Third Question What Are the Implications and Challenges of This Shift in Terms of Trade? Rural poverty declined faster than urban poverty. Food inflation has become structural. What sort of urbanization do we need? Financial inclusion? Notes: Notes next page.

Dental caries prevalence and treatment needs among 12- and 15- Year old schoolchildren in Shimla city, Himachal Pradesh, India.

Science.gov (United States)

Shailee, Fotedar; Sogi, G M; Sharma, K R; Nidhi, Pruthi

2012-01-01

Dental caries is one of the commonest oral diseases in children. Despite this fact, not many studies have been done on this issue among school children in Shimla. To assess the prevalence of dental caries and treatment needs among schoolchildren aged 12 years and 15 years in Shimla city, Himachal Pradesh, India. With this study we also aimed to establish reliable baseline data. Cross-sectional study. This study was conducted among 12 - and 15 - year old schoolchildren in Shimla city, Himachal Pradesh-India. A sample of 1011 schoolchildren was selected by a two-stage cluster sampling method. Clinical recording of dental caries, was done according to WHO diagnostic criteria (1997). The statistical tests used were the t- test, and the Chi-square test. The prevalence of dental caries was 32.6% and 42.2% at 12 years and 15 years respectively. At 12 years of age, the mean Decayed Missing Filled Teeth was 0.62 ± 1.42 and it was 1.06 ± 2.93 at 15 years of age. Females had higher level of caries than males at both the ages. Dental caries was higher in children from government schools as compared to those from private schools. The 'decayed' component was the biggest contributor to the DMFT index. The highest treatment need at both ages was one surface restoration. The caries experience of 12- and 15- year-old children was low compared to WHO - 'recommended' values. Effective oral health promotion strategies need to be implemented to further improve the dental health of school children in Shimla city.

Using Power-Law Degree Distribution to Accelerate PageRank

Directory of Open Access Journals (Sweden)

Zhaoyan Jin

2012-12-01

Full Text Available The PageRank vector of a network is very important, for it can reflect the importance of a Web page in the World Wide Web, or of a people in a social network. However, with the growth of the World Wide Web and social networks, it needs more and more time to compute the PageRank vector of a network. In many real-world applications, the degree and PageRank distributions of these complex networks conform to the Power-Law distribution. This paper utilizes the degree distribution of a network to initialize its PageRank vector, and presents a Power-Law degree distribution accelerating algorithm of PageRank computation. Experiments on four real-world datasets show that the proposed algorithm converges more quickly than the original PageRank algorithm.

Comparing classical and quantum PageRanks

Science.gov (United States)

Loke, T.; Tang, J. W.; Rodriguez, J.; Small, M.; Wang, J. B.

2017-01-01

Following recent developments in quantum PageRanking, we present a comparative analysis of discrete-time and continuous-time quantum-walk-based PageRank algorithms. Relative to classical PageRank and to different extents, the quantum measures better highlight secondary hubs and resolve ranking degeneracy among peripheral nodes for all networks we studied in this paper. For the discrete-time case, we investigated the periodic nature of the walker's probability distribution for a wide range of networks and found that the dominant period does not grow with the size of these networks. Based on this observation, we introduce a new quantum measure using the maximum probabilities of the associated walker during the first couple of periods. This is particularly important, since it leads to a quantum PageRanking scheme that is scalable with respect to network size.

Optimizing TLB entries for mixed page size storage in contiguous memory

Science.gov (United States)

Chen, Dong; Gara, Alan; Giampapa, Mark E.; Heidelberger, Philip; Kriegel, Jon K.; Ohmacht, Martin; Steinmacher-Burow, Burkhard

2013-04-30

A system and method for accessing memory are provided. The system comprises a lookup buffer for storing one or more page table entries, wherein each of the one or more page table entries comprises at least a virtual page number and a physical page number; a logic circuit for receiving a virtual address from said processor, said logic circuit for matching the virtual address to the virtual page number in one of the page table entries to select the physical page number in the same page table entry, said page table entry having one or more bits set to exclude a memory range from a page.

The role of bismuth on the microstructure and corrosion behavior of ternary Mg–1.2Ca–xBi alloys for biomedical applications

Energy Technology Data Exchange (ETDEWEB)

Tok, H.Y.; Hamzah, E., E-mail: Esah@fkm.utm.my; Bakhsheshi-Rad, H.R.

2015-08-15

Highlights: • Secondary phases have a significant effect on corrosion properties of the alloys. • Microstructure of Mg–Ca–xBi was refined significantly after Bi addition. • Addition of 0.5 wt.% Bi to Mg–Ca alloy leads to increase corrosion resistance. • Microstructure analysis showed needle-shaped precipitates at the grain boundaries. - Abstract: In this study the influence of various Bi additions on the microstructure and corrosion behavior of the Mg–1.2Ca–xBi alloys (x = 0.5, 1.5, 3, 5, 12 wt.%) were evaluated by using optical and scanning electron microscopy, immersion and electrochemical tests. Microstructural observations showed that the refinement efficiency became more pronounced with increased Bi amount. Microstructural results of Mg–1.2Ca–xBi (x = 0.5, 1.5, and 3) indicated that the formation of three distinct phases—namely α-Mg, Mg{sub 2}Ca and Mg{sub 3}Bi{sub 2}. However, further addition of Bi to 5 and 12 wt.% leads to evolution of α-Mg, Mg{sub 3}Bi{sub 2}, and Mg{sub 2}Bi{sub 2}Ca phases. The addition of Bi up to 0.5 wt.% enhanced corrosion resistance while further addition from 1.5 to 12 wt.% accelerated the degradation rate because of the emergence of more galvanic coupling between the α-Mg phases and secondary phases. The analyses showed that the Mg–1.2Ca–0.5Bi alloy gives the best corrosion resistance behavior, which makes it ideal for biodegradable medical applications.

The Importance of Prior Probabilities for Entry Page Search

NARCIS (Netherlands)

Kraaij, W.; Westerveld, T.H.W.; Hiemstra, Djoerd

An important class of searches on the world-wide-web has the goal to find an entry page (homepage) of an organisation. Entry page search is quite different from Ad Hoc search. Indeed a plain Ad Hoc system performs disappointingly. We explored three non-content features of web pages: page length,

IEC SC15E: Report on liaison activities of CIGRÉ-SC15

DEFF Research Database (Denmark)

Henriksen, Mogens

2000-01-01

WG’s activities under CIGRÉ SC15:WG 15.01 - Fluid impregnated systems.WG 15.02 - Dielectric Liquids.WG 15.03 - Gas Insulation.WG 15.04 - Outdoor Insulation.WG 15.05 - Capacitors.WG 15.07 - Solid Insulating Materials for Rotating Machines.WG 15/33.08 - Insulation Monitoring and Life Estimation. WG...

Coming to Life: A Review of Movie Comics: Page to Screen/Screen to Page

OpenAIRE

Labarre, Nicolas

2017-01-01

This book review provides an overview of 'Movie Comics: Page to Screen/Screen to Page' by Blair Davis (Rutgers University Press, 2017) a book which examines the reciprocal adaptations of film into comics and comics into films from 1930 to 1960. This review argues that 'Movie Comics' provides a useful and finely-textured cultural history of that phenomenon, which help contextualize scholarly studies of contemporary adaptations and transmedia constructions.

An Improved Approach to the PageRank Problems

Directory of Open Access Journals (Sweden)

Yue Xie

2013-01-01

Full Text Available We introduce a partition of the web pages particularly suited to the PageRank problems in which the web link graph has a nested block structure. Based on the partition of the web pages, dangling nodes, common nodes, and general nodes, the hyperlink matrix can be reordered to be a more simple block structure. Then based on the parallel computation method, we propose an algorithm for the PageRank problems. In this algorithm, the dimension of the linear system becomes smaller, and the vector for general nodes in each block can be calculated separately in every iteration. Numerical experiments show that this approach speeds up the computation of PageRank.

JERHRE's New Web Pages.

Science.gov (United States)

2006-06-01

JERHRE'S WEBSITE, www.csueastbay.edu/JERHRE/ has two new pages. One of those pages is devoted to curriculum that may be used to educate students, investigators and ethics committee members about issues in the ethics of human subjects research, and to evaluate their learning. It appears at www.csueastbay.edu/JERHRE/cur.html. The other is devoted to emailed letters from readers. Appropriate letters will be posted as soon as they are received by the editor. Letters from readers appear at www.csueastbay.edu/JERHRE/let.html.

Google Analytics: Single Page Traffic Reports

Science.gov (United States)

These are pages that live outside of Google Analytics (GA) but allow you to view GA data for any individual page on either the public EPA web or EPA intranet. You do need to log in to Google Analytics to view them.

Uniform Page Migration Problem in Euclidean Space

Directory of Open Access Journals (Sweden)

Amanj Khorramian

2016-08-01

Full Text Available The page migration problem in Euclidean space is revisited. In this problem, online requests occur at any location to access a single page located at a server. Every request must be served, and the server has the choice to migrate from its current location to a new location in space. Each service costs the Euclidean distance between the server and request. A migration costs the distance between the former and the new server location, multiplied by the page size. We study the problem in the uniform model, in which the page has size D = 1 . All request locations are not known in advance; however, they are sequentially presented in an online fashion. We design a 2.75 -competitive online algorithm that improves the current best upper bound for the problem with the unit page size. We also provide a lower bound of 2.732 for our algorithm. It was already known that 2.5 is a lower bound for this problem.

Crystallographic origin of cycle decay of the high-voltage LiNi0.5Mn1.5O4 spinel lithium-ion battery electrode.

Science.gov (United States)

Pang, Wei Kong; Lu, Cheng-Zhang; Liu, Chia-Erh; Peterson, Vanessa K; Lin, Hsiu-Fen; Liao, Shih-Chieh; Chen, Jin-Ming

2016-06-29

High-voltage spinel LiNi0.5Mn1.5O4 (LNMO) is considered a potential high-power-density positive electrode for lithium-ion batteries, however, it suffers from capacity decay after extended charge-discharge cycling, severely hindering commercial application. Capacity fade is thought to occur through the significant volume change of the LNMO electrode occurring on cycling, and in this work we use operando neutron powder diffraction to compare the structural evolution of the LNMO electrode in an as-assembled 18650-type battery containing a Li4Ti5O12 negative electrode with that in an identical battery following 1000 cycles at high-current. We reveal that the capacity reduction in the battery post cycling is directly proportional to the reduction in the maximum change of the LNMO lattice parameter during its evolution. This is correlated to a corresponding reduction in the MnO6 octahedral distortion in the spinel structure in the cycled battery. Further, we find that the rate of lattice evolution, which reflects the rate of lithium insertion and removal, is ∼9 and ∼10% slower in the cycled than in the as-assembled battery during the Ni(2+)/Ni(3+) and Ni(3+)/Ni(4+) transitions, respectively.

15 CFR 990.12 - Overview.

Science.gov (United States)

2010-01-01

... AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE OIL POLLUTION ACT REGULATIONS NATURAL RESOURCE DAMAGE ASSESSMENTS Introduction § 990.12 Overview. This part describes three phases of a natural resource..., is described in subpart D of this part. The Restoration Planning Phase, during which trustees...

Phase transitions in Fe_0_._5Co_0_._5 (110) thin films

International Nuclear Information System (INIS)

Ramírez-Dámaso, G.; Castillo-Alvarado, F.L.; Rojas-Hernández, E.

2016-01-01

In this paper, we present calculations for two second-order phase transitions in (110) Fe_0_._5Co_0_._5 thin films with 11, 15, and 19 monoatomic layers. The lattice and magnetic transitions are based on thermodynamic equilibrium considerations of the magnetic alloy. The procedure proposed by Valenta and Sukiennicki was applied to calculate the composition x(i), the lattice order parameter t(i), and the magnetic order parameter σ(i) as a function of temperature T. We confirmed that both phase transitions, lattice and magnetic, are of the second order, in accordance with experimental results in the literature. The obtained behavior of these parameters indicates their inhomogeneity due to the boundary conditions on the surfaces of the thin film.

15-Deoxy-Δ12,14-prostaglandin J2 inhibits macrophage colonization by Salmonella enterica serovar Typhimurium.

Directory of Open Access Journals (Sweden)

Michelle M C Buckner

Full Text Available 15-deoxy-Δ(12,14-prostaglandin J2 (15d-PGJ2 is an anti-inflammatory downstream product of the cyclooxygenase enzymes. It has been implicated to play a protective role in a variety of inflammatory mediated diseases, including rheumatoid arthritis, neural damage, and myocardial infarctions. Here we show that 15d-PGJ2 also plays a role in Salmonella infection. Salmonella enterica Typhimurium is a Gram-negative facultative intracellular pathogen that is able to survive and replicate inside phagocytic immune cells, allowing for bacterial dissemination to systemic sites. Salmonella species cause a wide range of morbidity and mortality due to gastroenteritis and typhoid fever. Previously we have shown that in mouse models of typhoid fever, Salmonella infection causes a major perturbation in the prostaglandin pathway. Specifically, we saw that 15d-PGJ2 production was significantly increased in both liver and feces. In this work we show that 15d-PGJ2 production is also significantly increased in macrophages infected with Salmonella. Furthermore, we show that the addition of 15d-PGJ2 to Salmonella infected RAW264.7, J774, and bone marrow derived macrophages is sufficient to significantly reduce bacterial colonization. We also show evidence that 15d-PGJ2 is reducing bacterial uptake by macrophages. 15d-PGJ2 reduces the inflammatory response of these infected macrophages, as evidenced by a reduction in the production of cytokines and reactive nitrogen species. The inflammatory response of the macrophage is important for full Salmonella virulence, as it can give the bacteria cues for virulence. The reduction in bacterial colonization is independent of the expression of Salmonella virulence genes SPI1 and SPI2, and is independent of the 15d-PGJ2 ligand PPAR-γ. 15d-PGJ2 also causes an increase in ERK1/2 phosphorylation in infected macrophages. In conclusion, we show here that 15d-PGJ2 mediates the outcome of bacterial infection, a previously unidentified

Social Studies Review, Numbers 1-12, 1989-1992.

Science.gov (United States)

Sewall, Gilbert T., Ed.

1992-01-01

This documents consists of 12 issues of a journal that seeks to provide information and reviews concerning social studies textbooks; each issue consists of 16 pages. Contents in the 12 issues include: (1) California control over textbook content; (2) "skills" teaching in elementary-level social studies texts; (3) readability formulas;…

Web page classification on child suitability

NARCIS (Netherlands)

C. Eickhoff (Carsten); P. Serdyukov; A.P. de Vries (Arjen)

2010-01-01

htmlabstractChildren spend significant amounts of time on the Internet. Recent studies showed, that during these periods they are often not under adult supervision. This work presents an automatic approach to identifying suitable web pages for children based on topical and non-topical web page

Coming to Life: A Review of Movie Comics: Page to Screen/Screen to Page

Directory of Open Access Journals (Sweden)

Nicolas Labarre

2017-03-01

Full Text Available This book review provides an overview of 'Movie Comics: Page to Screen/Screen to Page' by Blair Davis (Rutgers University Press, 2017 a book which examines the reciprocal adaptations of film into comics and comics into films from 1930 to 1960. This review argues that 'Movie Comics' provides a useful and finely-textured cultural history of that phenomenon, which help contextualize scholarly studies of contemporary adaptations and transmedia constructions.

Fabrication and Enhanced Thermoelectric Properties of Alumina Nanoparticle-Dispersed Bi0.5Sb1.5Te3 Matrix Composites

Directory of Open Access Journals (Sweden)

Kyung Tae Kim

2013-01-01

Full Text Available Alumina nanoparticle-dispersed bismuth-antimony-tellurium matrix (Al2O3/BST composite powders were fabricated by using ball milling process of alumina nanoparticle about 10 nm and p-type bismuth telluride nanopowders prepared from the mechanochemical process (MCP. The fabricated Al2O3/BST composite powders were a few hundreds of nanometer in size, with a clear Bi0.5Sb1.5Te3 phase. The composite powders were consolidated into p-type bulk composite by spark plasma sintering process. High-resolution TEM images reveal that alumina nanoparticles were dispersed among the grain boundary or in the matrix grain. The sintered 0.3 vol.% Al2O3/BST composite exhibited significantly improved power factor and reduced thermal conductivity in the temperature ranging from 293 to 473 K compared to those of pure BST. From these results, the highly increased ZT value of 1.5 was obtained from 0.3 vol.% Al2O3/BST composite at 323 K.

The ICAP (Interactive Course Assignment Pages Publishing System

Directory of Open Access Journals (Sweden)

Kim Griggs

2008-03-01

Full Text Available The ICAP publishing system is an open source custom content management system that enables librarians to easily and quickly create and manage library help pages for course assignments (ICAPs, without requiring knowledge of HTML or other web technologies. The system's unique features include an emphasis on collaboration and content reuse and an easy-to-use interface that includes in-line help, simple forms and drag and drop functionality. The system generates dynamic, attractive course assignment pages that blend Web 2.0 features with traditional library resources, and makes the pages easier to find by providing a central web page for the course assignment pages. As of December 2007, the code is available as free, open-source software under the GNU General Public License.

Calibrating page sized Gafchromic EBT3 films

International Nuclear Information System (INIS)

Crijns, W.; Maes, F.; Heide, U. A. van der; Van den Heuvel, F.

2013-01-01

cost effectiveness and dosimetric accuracy. The validation resulted in dose errors of 1%–2% for the two different time points, with a maximal absolute dose error around 0.05 Gy. The lateral correction reduced the RMSE values on the sides of the film to the RMSE values at the center of the film. Conclusions: EBT3 Gafchromic films were calibrated for large field dosimetry with a limited number of page sized films and simple static calibration fields. The transmittance was modeled as a linear combination of two transmittance states, and associated with dose using a rational calibration function. Additionally, the lateral scan effect was resolved in the calibration function itself. This allows the use of page sized films. Only two calibration films were required to estimate both the dose and the lateral response. The calibration films were used over the course of a week, with residual dose errors ⩽2% or ⩽0.05 Gy.

Relationship between salivary fluor concentration and caries index in 12–15 years old children

Directory of Open Access Journals (Sweden)

Vidyana Pratiwi

2012-03-01

Full Text Available Background: Dental caries is a bacterial infection leading to dissolution and localized damage of hard tissues. The assessment of caries risk is based on several caries indicators including clinical conditions (DMF-T index, environment (fluor, and general health. Purpose: The objective of this study was to assess the relationship between salivary fluor concentration and caries index in children aging 12–15 years old at SMP Negeri 2 PTPN VIII Pangalengan. Methods: This study is an observational analytical study using crosssectional approach and is conducted in a field trial manner. The study sample consists of 80 students in the age of 12 to 15 years old at SMP Negeri 2 PTPN VIII selected through Probability Sampling manner using simple random sampling method. Results: The result of this study shows a DMF-T index of 4.32 and salivary fluor concentration mean of 0.018. Pearson Product Moment correlation test shows that there is a weak correlation between salivary fluor concentration and DMF-T index. Conclusion: It is concluded that the salivary fluor concentration has an insignificant correlation with the DMF-T index since the fluor concentration in saliva is very low.Latar belakang: Karies gigi adalah penyakit infeksi bakteri yang berakibat pada disolusi dan kerusakan terlokalisasi jaringan keras. Penilaian risiko karies berdasarkan atas beberapa indikator karies yaitu kondisi klinis (indeks DMF-T, lingkungan (fluor, dan kesehatan umum. Tujuan: Penelitian ini bertujuan untuk mengetahui hubungan konsentrasi fluor yang terdapat dalam saliva dengan indeks karies pada anak usia 12-15 tahun di SMP Negeri 2 PTPN VIII Pangalengan. Metode: Jenis penelitian ini adalah penelitian analitik observasional dengan pendekatan cross sectional yang dilakukan di lapangan. Sampel penelitian sebanyak 80 orang siswasiswi usia 12–15 tahun di SMP Negeri 2 PTPN VIII Pangalengan yang dipilih secara Probability Sampling dengan metode simple random sampling. Hasil

Discovering author impact: A PageRank perspective

OpenAIRE

Yan, Erjia; Ding, Ying

2010-01-01

This article provides an alternative perspective for measuring author impact by applying PageRank algorithm to a coauthorship network. A weighted PageRank algorithm considering citation and coauthorship network topology is proposed. We test this algorithm under different damping factors by evaluating author impact in the informetrics research community. In addition, we also compare this weighted PageRank with the h-index, citation, and program committee (PC) membership of the International So...

Microwave-assisted synthesis of high-voltage nanostructured LiMn1.5Ni0.5O4 spinel: tuning the Mn3+ content and electrochemical performance

CSIR Research Space (South Africa)

Jafta, CJ

2013-08-01

Full Text Available on the Mn3+ concentration and electrochemistry of the LiMn1.5Ni0.5O4 spinel. It is shown that microwave is capable of tuning the Mn3+ content of the spinel for enhanced electrochemical performance (high capacity, high capacity retention, excellent rate...

CrossTalk. The Journal of Defense Software Engineering. Volume 15, Number 12, December 2002

Science.gov (United States)

2002-12-01

Journal of Defense Software Engineering. Volume 15, Number 12, December 2002 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6...You sit backwards on Disneyland rides to see how they do the special effects. • You’ve tried to repair a $5 radio. • You look forward to Christmas so

Page 28

African Journals Online (AJOL)

ezra

7 (2)2007. Page 28. Serials Management In Polytechnic Libraries in Nigeria: A Comparative ... Despite the strategic position of serials publications amongst the materials .... the formulation of routines and procedures for ..... other professional librarian in the section classify ... probably due to dwindling finance given to both.

Vitamin B12 absorption capacity in healthy children

International Nuclear Information System (INIS)

Hjelt, K.; Krasilnikoff, P.A.

1986-01-01

B12 absorption was investigated in 47 healthy children aged 7 months to 15.8 years (median 4.9 years). The patients had either recovered from giardiasis, the post-gastroenteritis syndrome, or had celiac disease in remission (treated with a gluten-free diet). The B12 absorption was measured by a double-isotope technique using 57 CoB12 and 51 CrCl 3 , the latter being the inabsorbable marker. The radiation dose was minimal. The results were presented as fractional absorption of B12 (FAB12). Within the different age groups, the absorption test was performed by means of the following oral amounts of B12: 0- less than 1 year, 0.5 microgram; 1-3 years: 1.7 micrograms, 4-6 years, 2.5 micrograms; 7-10 years; 3.3 micrograms; and 11-15 years, 4.5 micrograms. When using these oral amounts of B12, the medians (and ranges) of FAB12 were found to be: 1-3 years (n = 18), 37% (16-80%); 4-6 years (n = 10), 27% (19-40%); 7-10 years (n = 9), 32% (21-44%); and 11-15 years (n = 8), 27% (19-59%). The FAB12 in two children aged 7 and 11 months was 31% and 32%, respectively. These results may be interpretated as reference values for B12 absorption in children. Further absorption tests were performed in seven children representing the four age groups from 1 to 15 years. When a high oral amount of B12 was given (i.e., three times the saturation dose), the FAB12 ranged from 0 to 20% (median 9%), whereas a low amount (i.e., one-ninth of the saturation dose) produced fractional absorptions from 65 to 82% (median 74%)

Vitamin B12 absorption capacity in healthy children

Energy Technology Data Exchange (ETDEWEB)

Hjelt, K.; Krasilnikoff, P.A.

1986-03-01

B12 absorption was investigated in 47 healthy children aged 7 months to 15.8 years (median 4.9 years). The patients had either recovered from giardiasis, the post-gastroenteritis syndrome, or had celiac disease in remission (treated with a gluten-free diet). The B12 absorption was measured by a double-isotope technique using /sup 57/CoB12 and /sup 51/CrCl/sub 3/, the latter being the inabsorbable marker. The radiation dose was minimal. The results were presented as fractional absorption of B12 (FAB12). Within the different age groups, the absorption test was performed by means of the following oral amounts of B12: 0- less than 1 year, 0.5 microgram; 1-3 years: 1.7 micrograms, 4-6 years, 2.5 micrograms; 7-10 years; 3.3 micrograms; and 11-15 years, 4.5 micrograms. When using these oral amounts of B12, the medians (and ranges) of FAB12 were found to be: 1-3 years (n = 18), 37% (16-80%); 4-6 years (n = 10), 27% (19-40%); 7-10 years (n = 9), 32% (21-44%); and 11-15 years (n = 8), 27% (19-59%). The FAB12 in two children aged 7 and 11 months was 31% and 32%, respectively. These results may be interpretated as reference values for B12 absorption in children. Further absorption tests were performed in seven children representing the four age groups from 1 to 15 years. When a high oral amount of B12 was given (i.e., three times the saturation dose), the FAB12 ranged from 0 to 20% (median 9%), whereas a low amount (i.e., one-ninth of the saturation dose) produced fractional absorptions from 65 to 82% (median 74%).

Comparing the physical properties of Pr/Gd and Pr/Ce substitutions in Ru(Gd1.5Ce0.5)Sr2Cu2O10- δ

Science.gov (United States)

Khajehnezhad, A.; Nikseresht, N.; Hadipour, H.; Akhavan, M.

2008-06-01

We have compared the electrical and magnetic properties of Ru(Gd1.5- x Pr x )Ce0.5Sr2Cu2O10- δ (Pr/Gd samples) with x = 0.0, 0.01, 0.03, 0.033, 0.035, 0.04, 0.05, 0.06, 0.1 and RuGd1.5(Ce0.5- x Pr x ) Sr2 Cu2O10- δ (Pr/Ce samples) with x = 0.0, 0.01, 0.03, 0.05, 0.08, 0.1, 0.15, 0.2 prepared by the standard solid-state reaction technique. We obtained the XRD patterns for different samples with various x. The lattice parameters versus x for different substitutions have been obtained from Rietveld analysis. To determine how the magnetic and superconducting properties of these layered cuprate systems can be affected by Pr substitution, the resistivity, and magnetoresistivity, with H ext varying from 0.0 to 15 kOe, have been measured at various temperatures. Superconducting transition temperature T c and magnetic transition T irr , have been obtained through resistivity and ac susceptibility measurements. The T c suppression due to Pr/Gd and Pr/Ce substitutions show competition between pair breaking by magnetic impurities, hole doping due to different valances of ions, difference in ionic radii, and oxygen stoichiometry. Pr/Gd substitution suppresses superconductivity more rapidly than for Pr/Ce, showing that the effect of hole doping and magnetic impurity pair breaking is stronger than the difference in ionic radii. In Pr/Gd substitution, the small difference between the ionic radii of Pr3+,4+ and Gd3+, and absorption of more oxygen due to the higher valence of Pr with respect to Gd, decreases the mean Ru-Ru distance, and as a result, the magnetic exchange interaction becomes stronger with the increase of x. However, Pr/Ce substitution has the opposite effect. The magnetic parameters such as H c , obtained through magnetization measurements versus applied magnetic field isotherm at 77 K and room temperatures, become stronger with x in Pr/Gd and weaker with x in Pr/Ce substitution.

15 CFR 806.12 - Partnerships.

Science.gov (United States)

2010-01-01

... ECONOMIC ANALYSIS, DEPARTMENT OF COMMERCE DIRECT INVESTMENT SURVEYS § 806.12 Partnerships. Limited partners do not have voting rights in a partnership and therefore cannot have a direct investment in a... direct investment in a partnership shall be based on the country of residence of, and the percentage...

Indirect Measurement of 15N(p,α)12C and 18O(p,α)15N. Applications to the AGB Star Nucleosynthesis

International Nuclear Information System (INIS)

La Cognata, M.; Spitaleri, C.; Cherubini, S.; Crucilla, V.; Gulino, M.; Lamia, L.; Pizzone, R. G.; Puglia, S. M. R.; Rapisarda, G. G.; Romano, S.; Sergi, M. L.; Tumino, A.; Tribble, R.; Al-Abdullah, T.; Banu, A.; Fu, C.; Goldberg, V.; Mukhamedzhanov, A.; Tabacaru, G.; Trache, L.

2008-01-01

The Trojan Horse Method has been recently applied to the study of reactions involved in fluorine nucleosynthesis inside AGB stars. Fluorine abundance is important since it allows to constrain mixing models from the comparison of the observed fluorine abundances with the ones predicted by models. Anyway direct measurements of the cross section do not extend down to the Gamow peak, which is the astrophysically relevant energy region. In particular the study focuses on the 15 N(p,α) 12 C and the 18 O(p,α) 15 N reactions which can influence fluorine yield as they are part of 19 F production/destruction network

The (Untold) Drama of the Turning Page: The Role of Page Breaks in Understanding Picture Books

Science.gov (United States)

Jacobs, Katrina Emily Bartow

2016-01-01

While scholars have recognized the importance of page breaks in both the construction and comprehension of narrative within picture books, there has previously been limited research that focused directly on how children discuss and make sense of these spaces in the text. Yet, because of their nature as dramatic gaps in the narrative, page breaks…

Influence of calcium on transport properties, band spectrum and superconductivity of YBa2Cu3O(y) and YBa(1.5)La(0.5)Cu3O(y)

Science.gov (United States)

Gasumyants, V. E.; Vladimirskaya, E. V.; Patrina, I. B.

1995-01-01

The comparative investigation of transport phenomena in Y(1-x)Ca(x)Ba2Cu3O(y) (0 is less than x is less than 0.25; 6.96 is greater than y is greater than 6.87 and 6.73 is less than x is less than 6.53); Y(1-x)Ca(x)Ba(1.5)La(0.5)Cu3O(y) (0 is less than x is less than 0.5; 7.12 is greater than y is greater than 6.96) and YBa(2-x)La(x)Cu3O(y) (0 is less than x is less than 0.5; 6.95 is less than y is less than 7.21) systems have been carried out. The temperature dependencies of resistivity and thermopower have been measured. It was found that the S(T) dependencies take some additional features with Ca content increase. The results obtained have been analyzed on the basis of the phenomenological theory of electron transport in the case of the narrow conductive band. The main parameters of the band spectrum (the band filling with electrons degree and the total effective band width) have been determined. The dependencies of these from contents of substituting elements are discussed. Analyzing the results obtained simultaneously with the tendencies in oxygen content and critical temperature change we have confirmed the conclusion that the oxygen sublattice disordering has a determinant effect on band structure parameters and superconductive properties of YBa2Cu3O(y). The results obtained suggest that Ca gives rise to some peculiarities in band spectrum of this compound.

Crystal structure and optical absorption spectra of Ga0.5Fe0.5InS3 and Ga0.5Fe0.25In1.25S3 crystals

International Nuclear Information System (INIS)

Gusejnov, G.G.; Musaeva, N.N.; Kyazumov, M.G.; Asadova, I.B.; Aliev, O.M.

2003-01-01

Single crystals of Ga 0.5 Fe 0.5 InS 3 are grown by the method of chemical gas-transport reactions and those of Ga 0.5 Fe 0.25 In 1.25 S 3 - by Bridgman method. X-ray diffraction studies reveal that they crystallize in trigonal and rhombohedral systems with lattice parameters of a = 3.796 x 2 A, c = 12.210 A, P3m1; a = 3.786 x 2 A, c = 36.606 A, R3m, respectively. An optical absorption edge in a wide range of photon energy and an energy gap width are determined: E g = 1.885 eV for Ga 0.5 Fe 0.5 InS 3 and E g 1.843 eV for Ga 0.5 Fe 0.25 In 1.25 S 3 [ru

Unexpected ferromagnetic ordering enhancement with crystallite size growth observed in La0.5Ca0.5MnO3 nanoparticles

International Nuclear Information System (INIS)

Iniama, G.; Ita, B. I.; Presa, P. de la; Hernando, A.; Alonso, J. M.; Multigner, M.; Cortés-Gil, R.; Ruiz-González, M. L.; Gonzalez-Calbet, J. M.

2014-01-01

In this paper, the physical properties of half-doped manganite La 0.5 Ca 0.5 MnO 3 with crystallite sizes ranging from 15 to 40 nm are investigated. As expected, ferromagnetic order strengthens at expense of antiferromagnetic one as crystallite size is reduced to 15 nm. However, contrary to previously reported works, an enhancement of saturation magnetization is observed as crystallite size increases from 15 to 22 nm. This unexpected behavior is accompanied by an unusual cell volume variation that seems to induce ferromagnetic-like behavior at expense of antiferromagnetic one. Besides, field cooled hysteresis loops show exchange bias field and coercivity enhancement for increasing cooling fields, which suggest a kind of core-shell structure with AFM-FM coupling for crystallite sizes as small as 15 nm. It is expected that inner core orders antiferromagnetically, whereas uncompensated surface spins behave as spin glass with ferromagnetic-like ordering.

32 CFR 34.12 - Payment.

Science.gov (United States)

2010-07-01

... Program Management § 34.12 Payment. (a) Methods available. Payment methods for awards with for-profit... Administration Services Components,” DLAH 4105.4, which can be obtained from either: Defense Logistics Agency...-6220; or the Defense Contract Management Command home page at http://www.dcmc.dcrb.dla.mil. 2 See...

Harnessing Technology to Improve K-12 Education. Discussion Paper 2012-05

Science.gov (United States)

Chatterji, Aaron; Jones, Benjamin

2012-01-01

Technological progress has consistently driven remarkable advances in the U.S. economy, yet K-12 education sees little technological change compared to other sectors, even as U.S. K-12 students increasingly lag behind students in other nations. This proposal considers how we can take a signature American strength--innovation--and apply it to K-12…

Metadata Schema Used in OCLC Sampled Web Pages

Directory of Open Access Journals (Sweden)

Fei Yu

2005-12-01

Full Text Available The tremendous growth of Web resources has made information organization and retrieval more and more difficult. As one approach to this problem, metadata schemas have been developed to characterize Web resources. However, many questions have been raised about the use of metadata schemas such as which metadata schemas have been used on the Web? How did they describe Web accessible information? What is the distribution of these metadata schemas among Web pages? Do certain schemas dominate the others? To address these issues, this study analyzed 16,383 Web pages with meta tags extracted from 200,000 OCLC sampled Web pages in 2000. It found that only 8.19% Web pages used meta tags; description tags, keyword tags, and Dublin Core tags were the only three schemas used in the Web pages. This article revealed the use of meta tags in terms of their function distribution, syntax characteristics, granularity of the Web pages, and the length distribution and word number distribution of both description and keywords tags.

40 CFR 1502.7 - Page limits.

Science.gov (United States)

2010-07-01

... 40 Protection of Environment 32 2010-07-01 2010-07-01 false Page limits. 1502.7 Section 1502.7 Protection of Environment COUNCIL ON ENVIRONMENTAL QUALITY ENVIRONMENTAL IMPACT STATEMENT § 1502.7 Page limits. The text of final environmental impact statements (e.g., paragraphs (d) through (g) of § 1502.10...

Investigating the effect of multiple grain–grain interfaces on electric and magnetic properties of [50 wt% BaFe{sub 12}O{sub 19}–50 wt% Na{sub 0.5}Bi{sub 0.5}TiO{sub 3}] composite system

Energy Technology Data Exchange (ETDEWEB)

Pattanayak, Ranjit, E-mail: ranjit.p20@gmail.com [Department of Physics and Astronomy, National Institute of Technology, Rourkela 769008 (India); Muduli, Rakesh; Panda, Ranjit Kumar [Department of Physics and Astronomy, National Institute of Technology, Rourkela 769008 (India); Dash, Tapan [CSIR-Institute of Minerals and Materials Technology, Bhubaneswar, Odisha (India); Sahu, Priyanka; Raut, Subhajit; Panigrahi, Simanchala [Department of Physics and Astronomy, National Institute of Technology, Rourkela 769008 (India)

2016-03-15

This report presents the fabrication, electrical properties along with the magnetic parameters of a composite system considering a strong ferrimagnetic (BaFe{sub 12}O{sub 19}) and a ferroelectric (Na{sub 0.5}Bi{sub 0.5}TiO{sub 3}) material. Polycrystalline 50 wt% BaFe{sub 12}O{sub 19} (BaM)–50 wt% Na{sub 0.5}Bi{sub 0.5}TiO{sub 3} (NBT) composite system was prepared by the solid state reaction method. Rietveld refinement of XRD pattern confirms the presence of BaM and NBT phases without any impurity phase. From scanning electron micrograph both the phases are also clearly identified. In this report, the electric relaxation and conductivity properties were systematically investigated and analyzed in the frequency range of 100 Hz to 1 MHz and temperature range of 30–200 °C. The presence of different type of grains and significant reduction in the resistance of the composite system were found to be responsible for the nature of electric relaxation behavior. A peculiar and interesting evolution of grain boundary conduction was detected which was argued due to the existence of three possible grain boundaries such as: (i) BaM–BaM interface, (ii) NBT–NBT interface and (iii) BaM–NBT interface. The magnetization study (M–H loop) paves that, the saturation magnetization and coercive field reduces for composite system.

Enthalpies of formation of layered LiNixMnxCo1-2xO2 (0 ≤ x ≤ 0.5) compounds as lithium ion battery cathode materials

International Nuclear Information System (INIS)

Masoumi, Maryam; Cupid, Damian M.; Reichmann, Thomas L.; Seifert, Hans J.; Chang, Keke; Music, Denis; Schneider, Jochen M.

2017-01-01

Layer-structured mixed transition metal oxides with the formula LiNi x Mn x Co 1-2x O 2 (0 ≤ x ≤ 0.5) are considered as important cathode materials for lithium-ion batteries. In an effort to evaluate the relative thermodynamic stabilities of individual compositions in this series, the enthalpies of formation of selected stoichiometries are determined by high temperature oxide melt drop solution calorimetry and verified by ab-initio calculations. The measured and calculated data are in good agreement with each other, and the results show that LiCoO 2 -LiNi 0.5 Mn 0.5 O 2 solid solution approaches ideal behavior. By increasing x, i.e. by equimolar substitution of Mn 4+ and Ni 2+ for Co 3+ , the enthalpy of formation of LiNi x Mn x Co 1-2x O 2 from the elements becomes more exothermic, implying increased energetic stability. This conclusion is in agreement with the literature results showing improved structural stability and cycling performance of Ni/Mn-rich LiNi x Mn x Co 1-2x O 2 compounds cycled to higher cut-off voltages.

Unexpected ferromagnetic ordering enhancement with crystallite size growth observed in La{sub 0.5}Ca{sub 0.5}MnO₃ nanoparticles

Energy Technology Data Exchange (ETDEWEB)

Iniama, G.; Ita, B. I. [Department of Pure and Applied Chemistry, University of Calabar, Calabar (Nigeria); Presa, P. de la, E-mail: pmpresa@ucm.es; Hernando, A. [Instituto de Magnetismo Aplicado, UCM-ADIF-CSIC, 28230 Las Rozas (Spain); Fac. CC Físicas, Dpto. Física de Materiales, Univ. Complutense de Madrid, 28040 Madrid (Spain); Alonso, J. M. [Instituto de Magnetismo Aplicado, UCM-ADIF-CSIC, 28230 Las Rozas (Spain); Instituto de Ciencia de Materiales, CSIC, 28049-Madrid (Spain); Multigner, M. [Instituto de Magnetismo Aplicado, UCM-ADIF-CSIC, 28230 Las Rozas (Spain); Cortés-Gil, R.; Ruiz-González, M. L. [Fac. CC Químicas, Dpto. Química Inorgánica, Univ. Complutense de Madrid, 28040 Madrid (Spain); Gonzalez-Calbet, J. M. [Instituto de Magnetismo Aplicado, UCM-ADIF-CSIC, 28230 Las Rozas (Spain); Fac. CC Químicas, Dpto. Química Inorgánica, Univ. Complutense de Madrid, 28040 Madrid (Spain)

2014-09-21

In this paper, the physical properties of half-doped manganite La{sub 0.5}Ca{sub 0.5}MnO₃ with crystallite sizes ranging from 15 to 40 nm are investigated. As expected, ferromagnetic order strengthens at expense of antiferromagnetic one as crystallite size is reduced to 15 nm. However, contrary to previously reported works, an enhancement of saturation magnetization is observed as crystallite size increases from 15 to 22 nm. This unexpected behavior is accompanied by an unusual cell volume variation that seems to induce ferromagnetic-like behavior at expense of antiferromagnetic one. Besides, field cooled hysteresis loops show exchange bias field and coercivity enhancement for increasing cooling fields, which suggest a kind of core-shell structure with AFM-FM coupling for crystallite sizes as small as 15 nm. It is expected that inner core orders antiferromagnetically, whereas uncompensated surface spins behave as spin glass with ferromagnetic-like ordering.

15-Deoxy-delta12,14-prostaglandin J2, a neuroprotectant or a neurotoxicant?

International Nuclear Information System (INIS)

Koh, Seong-Ho; Jung, Boo; Song, Chi Won; Kim, Youngchul; Kim, Yong Soon; Kim, Seung Hyun

2005-01-01

15-Deoxy-delta12,14-prostaglandin J2 (15d-PGJ2) is a potent ligand for peroxisome proliferators-activated receptor γ (PPARγ). However, its various effects independent of PPARγ have recently been observed. The effect of 15d-PGJ2 on neuronal cells is still controversial. We investigated its effect on neuronal cells (N18D3 cells). When N18D3 cells were treated with 15d-PGJ2, the viability was not changed up to 8 μM, but decreased at higher than 8 μM. The expressions of survival signals, such as p85a phosphatidylinositol 3-kinase, phospho-Akt, and phospho-glycogen synthase kinase-3 beta (Ser-9), slightly increased up to 8 μM, however, decreased at higher than 8 μM. The levels of free radicals and membrane lipid peroxidation and the expression of c-Jun N-terminal Kinase increased in a dose-dependent manner, especially at higher than 8 μM. However, the expressions of death signals, such as cytosolic cytochrome c, activated caspase-3, and cleaved poly(ADP-ribose) polymerase, decreased up to 8 μM, however, increased at higher than 8 μM. In the study to evaluate whether low dose of 15d-PGJ2, up to 8 μM, had protective effect on oxidative stress-injured N18D3 cells, compared to the cells treated with only 100 μM H 2 O 2 , the pretreatment with 8 μM 15d-PGJ2 increased the viability and the expressions of the survival signals, but decreased them of the death signals. These results indicate that 15d-PGJ2 could be a neuroprotectant or a neurotoxicant, depending on its concentration. Therefore, some specific optimum dose of 15d-PGJ2 may be a new potential therapeutic candidate for oxidative stress-injury model of neurodegenerative diseases

Solutol HS 15, nontoxic polyoxyethylene esters of 12-hydroxystearic acid, reverses multidrug resistance.

Science.gov (United States)

Coon, J S; Knudson, W; Clodfelter, K; Lu, B; Weinstein, R S

1991-02-01

A recently developed non-ionic surfactant called Solutol HS 15 (poly-oxyethylene esters of 12-hydroxystearic acid), with low toxicity in vivo, was shown to reverse completely the multidrug resistance of KB 8-5 and KB 8-5-11 human epidermoid carcinoma cells in vitro but did not potentiate drug toxicity in drug-sensitive KB 3-1 cells. At a concentration of 10% of its own IC50 (mean concentration of drug that causes 50% inhibition of cell growth compared to controls), Solutol HS 15 produced a 35-, 28-, and 42-fold reduction in the resistance of KB 8-5-11 cells to colchicine, vinblastine, and doxorubicin, respectively. Solutol HS 15 was relatively much more potent than the prototypic reversing agent, verapamil, for reversing colchicine resistance, compared to the ability of each agent to reverse colchicine resistance, compared to the ability of each agent to reverse vinblastine resistance. Like verapamil, Solutol HS 15 promoted a 50-fold accumulation of rhodamine 123 in KB 8-5-11 cells, as measured by flow cytometry. Also, Solutol HS 15 and verapamil reduced the efflux of rhodamine 123 from KB 8-5-11 cells previously loaded with rhodamine 123 to a similar low rate. Solutol HS 15 did not affect the transport of alanine or glucose into KB 8-5-11 cells, indicating that its effect upon membrane active transport is not entirely nonspecific. Considering their different structure and different relative potency for reversing colchicine resistance, Solutol HS 15 and verapamil probably reverse multidrug resistance by different mechanisms. Solutol HS 15 merits consideration as a potential therapeutic agent because of its effectiveness for reversing multidrug resistance in vitro and its low toxicity in vivo.

High temperature study on the thermal properties of few-layer Mo0.5W0.5S2 and effects of capping layers

Directory of Open Access Journals (Sweden)

Hong Gu

Full Text Available We investigated the thermal properties of few-layer Mo0.5W0.5S2 using a series of samples with different kinds of capping layers. Temperature-dependent Raman measurements were conducted in the range of 300–500 K, with power-dependent measurements also carried out. It indicated, for the few-layer Mo0.5W0.5S2, the temperature coefficients of the WS2-like E12g mode, MoS2-like E12g mode and A1g mode were −0.0155 cm−1/K, −0.0146 cm−1/K, and −0.0130 cm−1/K, respectively. And the thermal conductivity was estimated to be 44.8 W/mK. Moreover, the Mo0.5W0.5S2 samples coated with capping layers (ZrO2, HfO2 both showed a better thermal stability and a larger thermal conductivity than the one without. The results revealed that the capping layer should be an important factor in the thermal property. Keywords: Mo0.5W0.5S2, TMDs, Thermal properties, High temperature, Capping layers, Raman

The Management of Ethnic-Cultural Diversity in Western Armed Forces

Science.gov (United States)

2012-03-20

192-201. 12 Bruce A. Brant, ―Vanguard of Social Change?‖ Military Review, no. 73 (February 1993): 12-19. 13 Histoire du monde Home Page, http...11, 2008. http://inde.aujourdhuilemonde.com/les-separatistes-gorkhas-entament-un-blocus- general?page=7 (accessed January 25, 2012). 15 ― Histoire ...du monde Home Page, http://www.histoiredumonde.net/Gurkhas.html (accessed January 25, 2012). 16 Histoire du monde Home Page, http

Instant PageSpeed optimization

CERN Document Server

Jaiswal, Sanjeev

2013-01-01

Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. Instant PageSpeed Optimization is a hands-on guide that provides a number of clear, step-by-step exercises for optimizing your websites for better performance and improving their efficiency.Instant PageSpeed Optimization is aimed at website developers and administrators who wish to make their websites load faster without any errors and consume less bandwidth. It's assumed that you will have some experience in basic web technologies like HTML, CSS3, JavaScript, and the basics of netw

An Efficient PageRank Approach for Urban Traffic Optimization

Directory of Open Access Journals (Sweden)

Florin Pop

2012-01-01

to determine optimal decisions for each traffic light, based on the solution given by Larry Page for page ranking in Web environment (Page et al. (1999. Our approach is similar with work presented by Sheng-Chung et al. (2009 and Yousef et al. (2010. We consider that the traffic lights are controlled by servers and a score for each road is computed based on efficient PageRank approach and is used in cost function to determine optimal decisions. We demonstrate that the cumulative contribution of each car in the traffic respects the main constrain of PageRank approach, preserving all the properties of matrix consider in our model.

One-step synthesis and effect of heat-treatment on the structure and electrochemical properties of LiNi0.5Mn1.5O4 cathode material for lithium-ion batteries

International Nuclear Information System (INIS)

Wen, Jian-Wu; Zhang, Da-Wei; Zang, Yong; Sun, Xin; Cheng, Bin; Ding, Chu-Xiong; Yu, Yan; Chen, Chun-Hua

2014-01-01

Highlights: • A one-step sol-gel route with resorcinol-formaldehyde resin is designed to synthesis LiNi 0.5 Mn 1.5 O 4 . • Fd-3 m phase delivers an excellent high rate performance and stable cycling retention. • A double “w”-shape R-V curve is a potential tool to indicate structure transition. - Abstract: Spinel LiNi 0.5 Mn 1.5 O 4 (Fd-3 m) powders are synthesized by a facile one-step sol-gel approach with a resorcinol formaldehyde (RF) resin as a chelating agent. The cross-linked metal-containing RF xerogel particles are sintered at different high temperatures from 750 to 950 °C to produce several micron-sized LiNi 0.5 Mn 1.5 O 4 powders. Electrochemical measurements suggest that the 850 °C-sintered (in air) sample (Fd-3 m phase) performs the best with a discharge capacity of 141 mAh g −1 at 0.1 C and 110 mAh g −1 at 10 C, and capacity-retention of 96.3% after 60 cycles at 0.25 C and 89% after 200 cycles at 1 C. For comparison, the LiNi 0.5 Mn 1.5 O 4 sample sintered at 850 °C in O 2 (P4 3 32 phase) presents limited rate performance (45 mAh g −1 at 10 C) and higher values in both AC impedance and DC-method derived resistance. A characteristic double “w”-shape curve of DC resistance against cell potential can be possibly considered as an indicator to probe the material structure transition during the charge/discharge process of the cell

Educational use of World Wide Web pages on CD-ROM.

Science.gov (United States)

Engel, Thomas P; Smith, Michael

2002-01-01

The World Wide Web is increasingly important for medical education. Internet served pages may also be used on a local hard disk or CD-ROM without a network or server. This allows authors to reuse existing content and provide access to users without a network connection. CD-ROM offers several advantages over network delivery of Web pages for several applications. However, creating Web pages for CD-ROM requires careful planning. Issues include file names, relative links, directory names, default pages, server created content, image maps, other file types and embedded programming. With care, it is possible to create server based pages that can be copied directly to CD-ROM. In addition, Web pages on CD-ROM may reference Internet served pages to provide the best features of both methods.

Dental Caries Scenario Among 5, 12 and 15-Year-old Children in India- A Retrospective Analysis.

Science.gov (United States)

Kundu, Hansa; Patthi, Basavaraj; Singla, Ashish; Jankiram, Chandrashekar; Jain, Swati; Singh, Khushboo

2015-07-01

Dental caries is the most prevalent dental disease and children are one of the most affected groups. Thus, the present study was conducted to assess the average dental caries prevalence across different WHO index age groups (5, 12 & 15 years) for the past fifteen years. Literature search was performed electronically in various search engines like google scholar, PubMed, Copernicus, etc. using Dental caries and India as MeSH terms. Articles from the past 15 years reporting on dental caries prevalence and experience in India were searched and this online searching strategy collected and listed 781 articles. After evaluating their titles and abstracts, only 30 articles fulfilled the inclusion and exclusion criteria & were finally selected for complete review and data collection. Five articles which were hand searched were also included. Pooled estimates were calculated for different index age groups and different regions (Northern and Southern) separately with a confidence interval of 95% both for prevalence and experience of dental caries. The pooled prevalence of dental caries was found to be highest in 15 year olds followed by 5 and 12 years (62.02%, 48.11% & 43.34% respectively). Weighted mean was also found to be highest for 15 years, followed by 5 and 12 years (2.56±6.508, 2.49±7.78, 1.48±3.292 respectively). Pooled prevalence and weighted mean for the Northernern India region was found to be more in all the index age groups as compared to the Southernern India region. More than 40% of the children in India have shown dental caries in both primary and permanent teeth in the past 15 years. Also, Northernern region was found to be more affected by dental caries than Southern region. Since children are seen as the future of the nation, this data could be helpful in the planning of oral health care services by the concerned authorities in the community.

Avaliar clinicamente uma solução contendo 0,12% de clorexidina, 0,05% de cetilpiridínico, e 0,05% de fluoreto de sódio na formação da placa e manchamento dental

OpenAIRE

Silva, Wagner Chagas da

2008-01-01

Apesar de sua eficácia no combate de infecções orais, a pigmentação de dentes e língua associada ao uso de soluções de clorexedina é um dos efeitos adversos que mais desencoraja o uso deste antisséptico por tempo prolongado. O objetivo deste estudo foi analisar o efeito da solução para bochecho contendo 0,12% de clorexidina, 0,05% de cetilpiridínio e 0,05% de fluoreto de sódio, na atividade anti- placa e formação da pigmentação extrínseca dental e da língua. Participara...

The quinternary thiophosphate Cs0.5Ag0.5Nb2PS10

Directory of Open Access Journals (Sweden)

Sojeong Park

2010-07-01

Full Text Available The quinternary thiophosphate Cs0.5Ag0.5Nb2PS10, cesium silver tris(disulfido[tetrathiophosphato(V]diniobate(IV, has been prepared from the elements using a CsCl flux. The crystal structure is made up of ∞1[Nb2PS10] chains expanding along [010]. These chains are built up from bicapped trigonal-prismatic [Nb2S12] units and tetrahedral [PS4] groups and are linked through a linear S—Ag—S bridge, forming a two-dimensional layer. These layers then stack on top of each other, completing the three-dimensional structure with an undulating van der Waals gap. The disordered Cs+ ions reside on sites with half-occupation in the voids of this arrangement. Short [2.8843 (5 Å] and long [3.7316 (4 Å] Nb—Nb distances alternate along the chains, and anionic S22− and S2− species are observed. The charge balance of the compound can be represented by the formula [Cs+]0.5[Ag+]0.5[Nb4+]2[PS43−][S22−]3.

Hot rolling effect on the characters of Zr-0.6Nb-0.5Fe-0.5Cr alloy

International Nuclear Information System (INIS)

Sungkono; Siti Aidah

2015-01-01

Characters of Zr-0.6Nb-0.5Fe-0.5Cr alloy after hot rolling have been studied. The objective of this research was to obtain of hot rolling effect on the characteristics of microstructures, hardness and phases formed in Zr-0.6Nb-0.5Fe-0.5Cr alloy. The hot rolling process of alloy carried out at temperature of 800 °C with retention time of 1.5 and 2 hours and a thickness reduction between 5 to 25 %. The results of this experiment showed that the Zr-0.6Nb-0.5Fe-0.5Cr alloy has Widmanstaetten structure with microstructure evolving into deformed columnar grains and deformed elongated grains with increasing thickness reduction. Besides, the longer the retention time at temperature of 800 °C is the larger are the grain structures and formation of α-Zr and Zr_3Fe phase. The hardness of Zr-0.6Nb-0.5Fe-0.5Cr alloy has same trends i.e the larger thickness reduction gives higher hardness. The Zr-0.6Nb-0.5Fe-0.5Cr alloy can under go hot rolling deformation at a thickness reduction of 25 % and the formation of α-Zr and Zr_3Fe can increased of hardness and strength of Zr-0.6 Nb-0.5 Fe-0.5 Cr alloy. (author)

Migrating Multi-page Web Applications to Single-page AJAX Interfaces

NARCIS (Netherlands)

Mesbah, A.; Van Deursen, A.

2006-01-01

Recently, a new web development technique for creating interactive web applications, dubbed AJAX, has emerged. In this new model, the single-page web interface is composed of individual components which can be updated/replaced independently. With the rise of AJAX web applications classical

Contribution to the study of the reaction {pi}{+-} + p {yields} {pi}{+-} + p + {pi}{sup 0} between 0,5 and 1.5 GeV/c (1963); Contribution a l'etude des reactions {pi}{+-} + p {yields} {pi}{+-} + p + {pi}{sup 0} entre 0,5 et 1,5 GeV/c (1963)

Energy Technology Data Exchange (ETDEWEB)

Thevenet, B [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

1963-06-15

We measured, with {gamma} rays counters, the total production cross section of {gamma} accompanied by charged secondaries in {pi}{sup {+-}} p interactions between 0.5 and 1.5 GeV/c. We obtained the cross section of the reaction {pi}{sup +} p {yields} {pi}{sup +} {pi}{sup 0} p, with incident {pi}{sup -} we could determined only the cross section of {pi}{sup -} p {yields} {pi}{sup 0} + (charged particles) because the lack of information on multiple production. We compared our experimental results with the predictions of simple production models. A method for calculation of high energy {gamma} rays efficiency of detectors with lead converters is given in the appendix. (author) [French] Nous avons mesure, au moyen de compteurs sensibles aux photons, la section efficace totale de production de {gamma} accompagnes de secondaires charges dans les interactions {pi}{sup {+-}} p entre 0,5 et 1,5 GeV/c. Nous avons obtenu la section efficace de la reaction {pi}{sup +} p {yields} {pi}{sup +} {pi}{sup 0} p, mais avec des {pi}{sup -} incidents nous n'avons pu determiner que la section efficace de la reaction {pi}{sup -} p {yields} {pi}{sup 0} + particules chargees, par manque d'information sur la production multiple. Nous avons compare nos resultats aux predictions des principaux modeles de production simple. En appendice, nous donnons une methode de calcul de l'efficacite de detecteurs a ecrans de plomb pour les photons de grande energie. (auteur)

Liaison amid problem behavior and traumatic dental injury among children aged 12-15 years in Bhopal

Directory of Open Access Journals (Sweden)

Naveen S Yadav

2015-01-01

Full Text Available Introduction: Liaison amid problem behavior and traumatic dental injury among children aged 13-15 years are consequential due to multifactorial dental, orofacial skeletal, psycosocial behavior pattern. The probable etiology is been equated overjet; inadequate lip coverage is the major etiological factors accountable for traumatic dental injuries. Aims: The aim was to assess the relationship of problem behavior, type of lip coverage, and the size of overjet with the traumatic dental injury among children aged 12-15 years. Materials and Methods: A cross-sectional study was conducted among 200 children aged 12-15 years in Bhopal, India. Data were collected through clinical examinations in children and interviews with parents. Traumatic injuries were recorded according to Garcia-Goday′s classification. The informant - rated version of the strengths and difficulties questionnaire was used to identify problems behavior. Results: About 16.4% subjects had more than 5 mm overjet, and 20.4% subjects had inadequate lip coverage. The largest number of injuries were presented by 15-year-old children (43.90% followed by 14 and 13 years old children. The traumatic dental injury showed 6.8% association with problem behavior, age, sex, type of lip coverage, and the size of overjet. Conclusion: Problem behavior along with the type of lip coverage and the size of overjet plays a role in the occurrence of traumatic dental injury.

Analysis of readability and quality of web pages addressing both common and uncommon topics in pediatric surgery.

Science.gov (United States)

Adorisio, Ottavio; Silveri, Massimiliano; Rivosecchi, Massimo; Tozzi, Alberto Eugenio; Scottoni, Federico; Buonuomo, Paola Sabrina

2012-06-01

The quality medical information on Internet is highly variable. The aim of this study is to determine if Web pages addressing four common pediatric surgical topics (CT) and four uncommon pediatric surgical topics (UT) differ significantly in terms of quality and/or characteristics. We performed an Internet search regarding four CT, addressing more frequent clinical conditions with an incidence≤1:1.500 children (inguinal hernia, varicocele, umbilical hernia, and phimosis) and four UT addressing less frequent clinical conditions with an incidence≥1:1.500 children (anorectal malformation, intestinal atresia, gastroschisis, and omphalocele), using a popular search engine (Google). We evaluated readability with the Flesch reading ease (FRE) and the Flesch-Kincaid grade (FKG) and quality of content using the site checker of the HON Code of Conduct (HON code) for each website. In this study, 30/40 websites addressing CT versus 33/50 addressing UT responded to our criteria. No differences statistically significant in advertisements between the two groups were found (15 vs. 16%) (p>0.05). No differences were found in terms of time from last update, owner/author type, financial disclosure, accreditation, or advertising. CT had higher quality level according to the HON code (6.54±1.38 vs. 5.05±1.82) (p0.05). The mean FKG was 8.1±1.9 for CT versus 8±1.9 for UT (p>0.05). Websites devoted to pediatric surgical topics have higher readability and quality information for disease diagnosis and natural history. Otherwise, the quality of pediatric surgical information on the Internet is high for CT and UT. A high reading level is required to use these resources. Copyright © 2012 by Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Pacemaker reed switch behavior in 0.5, 1.5, and 3.0 Tesla magnetic resonance imaging units: are reed switches always closed in strong magnetic fields?

Science.gov (United States)

Luechinger, Roger; Duru, Firat; Zeijlemaker, Volkert A; Scheidegger, Markus B; Boesiger, Peter; Candinas, Reto

2002-10-01

MRI is established as an important diagnostic tool in medicine. However, the presence of a cardiac pacemaker is usually regarded as a contraindication for MRI due to safety reasons. The aim of this study was to investigate the state of a pacemaker reed switch in different orientations and positions in the main magnetic field of 0.5-, 1.5-, and 3.0-T MRI scanners. Reed switches used in current pacemakers and ICDs were tested in 0.5-, 1.5-, and 3.0-T MRI scanners. The closure of isolated reed switches was evaluated for different orientations and positions relative to the main magnetic field. The field strengths to close and open the reed switch and the orientation dependency of the closed state inside the main magnetic field were investigated. The measurements were repeated using two intact pacemakers to evaluate the potential influence of the other magnetic components, like the battery. If the reed switches were oriented parallel to the magnetic fields, they closed at 1.0 +/- 0.2 mT and opened at 0.7 +/- 0.2 mT. Two different reed switch behaviors were observed at different magnetic field strengths. In low magnetic fields ( 200 mT), the reed switches opened in 50% of all tested orientations. No difference between the three scanners could be demonstrated. The reed switches showed the same behavior whether they were isolated or an integral part of the pacemakers. The reed switch in a pacemaker or an ICD does not necessarily remain closed in strong magnetic fields at 0.5, 1.5, or 3.0 T and the state of the reed switch may not be predictable with certainty in clinical situations.

Thermoelectric properties of p-type pseudo-binary (Ag0.365Sb0.558Te) x -(Bi0.5Sb1.5Te3)1-x (x=0-1.0) alloys prepared by spark plasma sintering

International Nuclear Information System (INIS)

Cui, J.L.; Xue, H.F.; Xiu, W.J.; Jiang, L.; Ying, P.Z.

2006-01-01

In this paper, pseudo-binary (Ag 0.365 Sb 0.558 Te) x -(Bi 0.5 Sb 1.5 Te 3 ) 1- x (x=0-1.0) alloys were prepared using spark plasma sintering technique, and the composition-dependent thermoelectric properties were evaluated. Electrical conductivities range from 7.9x10 4 to 15.6x10 4 Ω -1 m -1 at temperatures of 507 and 318 K, respectively, being about 3.0 and 8.5 times those of Bi 0.5 Sb 1.5 Te 3 alloy at the corresponding temperatures. The optimal dimensionless figure of merit (ZT) of the sample with molar fraction x=0.025 reaches 1.1 at 478 K, whereas that of the ternary Bi 0.5 Sb 1.5 Te 3 alloy is 0.58 near room temperature. The results also reveal that a direct introduction of Ag 0.365 Sb 0.558 Te in the Bi-Sb-Te system is much more effective to the property improvement than naturally precipitated Ag 0.365 Sb 0.558 Te in the Ag-doped Ag-Bi-Sb-Te system. - Graphical abstract: The temperature dependence of the dimensionless thermoelectric figure of merit ZT for different (Ag 0.365 Sb 0.558 Te) x -(Bi 0.5 Sb 1.5 Te 3 ) 1- x (x=0-1.0) alloys prepared by spark plasma sintering

Semiconductor Ceramic Mn0.5Fe1.5O3-Fe2O3 from Natural Minerals as Ethanol Gas Sensors

Science.gov (United States)

Aliah, H.; Syarif, D. G.; Iman, R. N.; Sawitri, A.; Sanjaya WS, M.; Nurul Subkhi, M.; Pitriana, P.

2018-05-01

In this research, Mn and Fe-based ceramic gas sensing were fabricated and characterized. This research used natural mineral which is widely available in Indonesia and intended to observe the characteristics of Mn and Fe-based semiconducting material. Fabricating process of the thick films started by synthesizing the ceramic powder of Fe(OH)3 and Mn oxide material using the precipitation method. The deposition from precipitation method previously was calcined at a temperature of 800 °C to produce nanoparticle powder. Nanoparticle powder that contains Mn and Fe oxide was mixed with an organic vehicle (OV) to produce a paste. Then, the paste was layered on the alumina substrate by using the screen printing method. XRD method was utilized to characterize the thick film crystal structure that has been produced. XRD spectra showed that the ceramic layer was formed from the solid Mn0.5Fe1.5O3 (bixbyite) and Fe2O3. In addition, the electrical properties (resistance) examination was held in the room that contains air and ethanol to determine the sensor sensitivity of ethanol gas. The sensor resistance decreases as the ethanol gas was added, showing that the sensor was sensitive to ethanol gas and an n-type semiconductor. Gas sensor exhibit sensitive characterization of ethanol gas on the concentration of (100 to 300) ppm at a temperature of (150 to 200) °C. This showed that the Mn0.5Fe1.5O3-Fe2O3 ceramic semiconductor could be utilized as the ethanol gas detector.

Enhanced Photocatalytic Hydrogen Evolution by Loading Cd0.5Zn0.5S QDs onto Ni2P Porous Nanosheets.

Science.gov (United States)

Xiao, Lingfeng; Su, Tong; Wang, Zhuo; Zhang, Kun; Peng, Xiaoniu; Han, Yibo; Li, Quan; Wang, Xina

2018-02-02

Ni 2 P has been decorated on CdS nanowires or nanorods for efficient photocatalytic H 2 production, whereas the specific surface area remains limited because of the large size. Here, the composites of Cd 0.5 Zn 0.5 S quantum dots (QDs) on thin Ni 2 P porous nanosheets with high specific surface area were constructed for noble metal-free photocatalytic H 2 generation. The porous Ni 2 P nanosheets, which were formed by the interconnection of 15-30 nm-sized Ni 2 P nanoparticles, allowed the uniform loading of 7 nm-sized Cd 0.5 Zn 0.5 S QDs and the loading density being controllable. By tuning the content of Ni 2 P, H 2 generation rates of 43.3 μM h - 1 (1 mg photocatalyst) and 700 μM h - 1 (100 mg photocatalyst) and a solar to hydrogen efficiency of 1.5% were achieved for the Ni 2 P-Cd 0.5 Zn 0.5 S composites. The effect of Ni 2 P content on the light absorption, photoluminescence, and electrochemical property of the composite was systematically studied. Together with the band structure calculation based on density functional theory, the promotion of Ni 2 P in charge transfer and HER activity together with the shading effect on light absorption were revealed. Such a strategy can be applied to other photocatalysts toward efficient solar hydrogen generation.

Enhanced Photocatalytic Hydrogen Evolution by Loading Cd0.5Zn0.5S QDs onto Ni2P Porous Nanosheets

Science.gov (United States)

Xiao, Lingfeng; Su, Tong; Wang, Zhuo; Zhang, Kun; Peng, Xiaoniu; Han, Yibo; Li, Quan; Wang, Xina

2018-02-01

Ni2P has been decorated on CdS nanowires or nanorods for efficient photocatalytic H2 production, whereas the specific surface area remains limited because of the large size. Here, the composites of Cd0.5Zn0.5S quantum dots (QDs) on thin Ni2P porous nanosheets with high specific surface area were constructed for noble metal-free photocatalytic H2 generation. The porous Ni2P nanosheets, which were formed by the interconnection of 15-30 nm-sized Ni2P nanoparticles, allowed the uniform loading of 7 nm-sized Cd0.5Zn0.5S QDs and the loading density being controllable. By tuning the content of Ni2P, H2 generation rates of 43.3 μM h- 1 (1 mg photocatalyst) and 700 μM h- 1 (100 mg photocatalyst) and a solar to hydrogen efficiency of 1.5% were achieved for the Ni2P-Cd0.5Zn0.5S composites. The effect of Ni2P content on the light absorption, photoluminescence, and electrochemical property of the composite was systematically studied. Together with the band structure calculation based on density functional theory, the promotion of Ni2P in charge transfer and HER activity together with the shading effect on light absorption were revealed. Such a strategy can be applied to other photocatalysts toward efficient solar hydrogen generation.

Monte Carlo methods in PageRank computation: When one iteration is sufficient

NARCIS (Netherlands)

Avrachenkov, K.; Litvak, Nelli; Nemirovsky, D.; Osipova, N.

2005-01-01

PageRank is one of the principle criteria according to which Google ranks Web pages. PageRank can be interpreted as a frequency of visiting a Web page by a random surfer and thus it reflects the popularity of a Web page. Google computes the PageRank using the power iteration method which requires

Monte Carlo methods in PageRank computation: When one iteration is sufficient

NARCIS (Netherlands)

Avrachenkov, K.; Litvak, Nelli; Nemirovsky, D.; Osipova, N.

PageRank is one of the principle criteria according to which Google ranks Web pages. PageRank can be interpreted as a frequency of visiting a Web page by a random surfer, and thus it reflects the popularity of a Web page. Google computes the PageRank using the power iteration method, which requires

Emotional and Social Development: 8 to 12 Months

Science.gov (United States)

... Stages Listen Español Text Size Email Print Share Emotional and Social Development: 8 to 12 Months Page ... around strangers is usually one of the first emotional milestones your baby will reach. You may think ...

Automatic Removal of Advertising from Web-Page Display / Extended Abstract

OpenAIRE

Rowe, Neil C.; Coffman, Jim; Degirmenci, Yilmaz; Hall, Scott; Lee, Shong; Williams, Clifton

2002-01-01

Joint Conference on Digital Libraries ’02, July 8-12, Portland, Oregon. The usefulness of the World Wide Web as a digital library of precise and reliable information is reduced by the increasing presence of advertising on Web pages. But no one is required to read or see advertising, and this cognitive censorship can be automated by software. Such filters can be useful to the U.S. government which must permit its employees to use the Web but which is prohibited by law from endorsing c...

Orthodontic treatment need of 9, 12 and 15 year-old children according to the Index of Orthodontic Treatment Need and the Dental Aesthetic Index.

Science.gov (United States)

Boronat-Catalá, Montserrat; Bellot-Arcís, Carlos; Montiel-Company, José María; Catalá-Pizarro, Montserrat; Almerich-Silla, José Manuel

2016-06-01

To assess the differences in occlusal features in three cohorts at 9, 12 and 15 years of age, and compare orthodontic treatment need measured by the Dental Aesthetic Index (DAI) and Index of Orthodontic Treatment Need (IOTN). Cross-sectional study. School of Dentistry, University of Valencia. A total of 1086 children: 321 aged 9, 397 aged 12 and 368 aged 15. Children were examined to measure their orthodontic treatment need according to IOTN and DAI. The main outcome measure was orthodontic treatment need according to the DAI and IOTN indices. Overbite and inter-incisal diastema were the occlusal features that presented significant differences between the three groups, diminishing with age. Treatment need according to the IOTN was 15.4% at 9 years, 20.9% at 12 years and 12.8% at 15 years. Treatment need according to DAI was 44.8% at 9 years, 21.7% at 12 years and 14.1% at 15 years. The diagnostic agreement between the two indices on the treatment need by age group was very low at 9 years (Kappa 0.18) and moderate at 12 and 15 years (Kappa 0.451 and 0.405, respectively). Orthodontic treatment need is greater in the mixed dentition and falls slightly as the child grows. The greatest variation in results between 9 and 15 years were found in relation to the DAI, which is consequently not recommended for use in the mixed dentition.

Cyclopentenone prostaglandins as potential inducers of phase II detoxification enzymes. 15-deoxy-delta(12,14)-prostaglandin j2-induced expression of glutathione S-transferases.

Science.gov (United States)

Kawamoto, Y; Nakamura, Y; Naito, Y; Torii, Y; Kumagai, T; Osawa, T; Ohigashi, H; Satoh, K; Imagawa, M; Uchida, K

2000-04-14

Exposure of cells to a wide variety of chemoprotective compounds confers resistance to a broad set of carcinogens. For a subset of the chemoprotective compounds, protection is generated by an increase in the abundance of protective enzymes, such as glutathione S-transferases (GSTs). In the present study, we developed a cell culture system that potently responds to phenolic antioxidants and found that antitumor prostaglandins (PGs) are potential inducers of GSTs. We screened primary hepatocytes and multiple cell lines for inducing GST activity upon incubation with the phenolic antioxidant (tert-butylhydroquinone) and found that rat liver epithelial RL34 cells most potently responded. Based on an extensive screening of diverse chemical agents on the induction of GST activity in RL34 cells, the J2 series of PGs, 15-deoxy-Delta(12,14)-prostaglandin J2 (15-deoxy-Delta(12,14)-PGJ2) in particular, were found to be potential inducers of GST. Enhanced gene expression of Class pi GST isozyme (GSTP1) by 15-deoxy-Delta(12,14)-PGJ2 was evident as a drastic elevation of the mRNA level. Hence, we examined the molecular mechanism underlying the 15-deoxy-Delta(12, 14)-PGJ2-induced GSTP1 gene expression. From functional analysis of various deletion mutant genes, we found that the 15-deoxy-Delta(12, 14)-PGJ2 reponse element was localized in a region containing a GSTP1 enhancer I (GPEI) that consists of two imperfect phorbol 12-O-tetradecanoylphorbol-13-acetate response elements. When the GPEI was combined with the minimum GSTP1 promoter, the element indeed showed an enhancer activity in response to 15-deoxy-Delta(12, 14)-PGJ2. Point mutations of either of the two imperfect 12-O-tetradecanoylphorbol-13-acetate response elements in GPEI completely abolished the enhancer activity. Gel mobility shift assays demonstrated that 15-deoxy-Delta(12,14)-PGJ2 specifically stimulated the binding of nuclear proteins including the transcription factor c-Jun, but not Nrf2, to GPEI. These results

A Note on the PageRank of Undirected Graphs

OpenAIRE

Grolmusz, Vince

2012-01-01

The PageRank is a widely used scoring function of networks in general and of the World Wide Web graph in particular. The PageRank is defined for directed graphs, but in some special cases applications for undirected graphs occur. In the literature it is widely noted that the PageRank for undirected graphs are proportional to the degrees of the vertices of the graph. We prove that statement for a particular personalization vector in the definition of the PageRank, and we also show that in gene...

Citations to Web pages in scientific articles: the permanence of archived references.

Science.gov (United States)

Thorp, Andrea W; Schriger, David L

2011-02-01

We validate the use of archiving Internet references by comparing the accessibility of published uniform resource locators (URLs) with corresponding archived URLs over time. We scanned the "Articles in Press" section in Annals of Emergency Medicine from March 2009 through June 2010 for Internet references in research articles. If an Internet reference produced the authors' expected content, the Web page was archived with WebCite (http://www.webcitation.org). Because the archived Web page does not change, we compared it with the original URL to determine whether the original Web page had changed. We attempted to access each original URL and archived Web site URL at 3-month intervals from the time of online publication during an 18-month study period. Once a URL no longer existed or failed to contain the original authors' expected content, it was excluded from further study. The number of original URLs and archived URLs that remained accessible over time was totaled and compared. A total of 121 articles were reviewed and 144 Internet references were found within 55 articles. Of the original URLs, 15% (21/144; 95% confidence interval [CI] 9% to 21%) were inaccessible at publication. During the 18-month observation period, there was no loss of archived URLs (apart from the 4% [5/123; 95% CI 2% to 9%] that could not be archived), whereas 35% (49/139) of the original URLs were lost (46% loss; 95% CI 33% to 61% by the Kaplan-Meier method; difference between curves PWeb page at publication can help preserve the authors' expected information. Copyright © 2010 American College of Emergency Physicians. Published by Mosby, Inc. All rights reserved.

School-based suicide prevention programmes: the SEYLE cluster-randomised, controlled trial.

Science.gov (United States)

Wasserman, Danuta; Hoven, Christina W; Wasserman, Camilla; Wall, Melanie; Eisenberg, Ruth; Hadlaczky, Gergö; Kelleher, Ian; Sarchiapone, Marco; Apter, Alan; Balazs, Judit; Bobes, Julio; Brunner, Romuald; Corcoran, Paul; Cosman, Doina; Guillemin, Francis; Haring, Christian; Iosue, Miriam; Kaess, Michael; Kahn, Jean-Pierre; Keeley, Helen; Musa, George J; Nemes, Bogdan; Postuvan, Vita; Saiz, Pilar; Reiter-Theil, Stella; Varnik, Airi; Varnik, Peeter; Carli, Vladimir

2015-04-18

Suicidal behaviours in adolescents are a major public health problem and evidence-based prevention programmes are greatly needed. We aimed to investigate the efficacy of school-based preventive interventions of suicidal behaviours. The Saving and Empowering Young Lives in Europe (SEYLE) study is a multicentre, cluster-randomised controlled trial. The SEYLE sample consisted of 11,110 adolescent pupils, median age 15 years (IQR 14-15), recruited from 168 schools in ten European Union countries. We randomly assigned the schools to one of three interventions or a control group. The interventions were: (1) Question, Persuade, and Refer (QPR), a gatekeeper training module targeting teachers and other school personnel, (2) the Youth Aware of Mental Health Programme (YAM) targeting pupils, and (3) screening by professionals (ProfScreen) with referral of at-risk pupils. Each school was randomly assigned by random number generator to participate in one intervention (or control) group only and was unaware of the interventions undertaken in the other three trial groups. The primary outcome measure was the number of suicide attempt(s) made by 3 month and 12 month follow-up. Analysis included all pupils with data available at each timepoint, excluding those who had ever attempted suicide or who had shown severe suicidal ideation during the 2 weeks before baseline. This study is registered with the German Clinical Trials Registry, number DRKS00000214. Between Nov 1, 2009, and Dec 14, 2010, 168 schools (11,110 pupils) were randomly assigned to interventions (40 schools [2692 pupils] to QPR, 45 [2721] YAM, 43 [2764] ProfScreen, and 40 [2933] control). No significant differences between intervention groups and the control group were recorded at the 3 month follow-up. At the 12 month follow-up, YAM was associated with a significant reduction of incident suicide attempts (odds ratios [OR] 0·45, 95% CI 0·24-0·85; p=0·014) and severe suicidal ideation (0·50, 0·27-0·92; p=0·025

Cross sections for the 14N(n,p0), (n,α0), and (n,α1) reactions from 0.5 to 15 MeV

International Nuclear Information System (INIS)

Morgan, G.L.

1978-09-01

Cross sections were measured for the 14 N(n,p 0 ) reaction from 0.5 to 7.0 MeV and for the (n,α 0 ) and (n,α 1 ) reactions from 1 to 15 MeV and 4 to 15 MeV, respectively. The data were obtained using a gaseous scintillator containing N 2 and Xe mixtures. A linac was used as a pulsed, white neutron source with a 29-m fight path. The results of the measurement are compared to the current evaluated file for nitrogen; agreement is good for neutron energies below 8 MeV, but the measurement is substantially higher than the evaluation for neutron energies near 10 MeV

Digital Ethnography: Library Web Page Redesign among Digital Natives

Science.gov (United States)

Klare, Diane; Hobbs, Kendall

2011-01-01

Presented with an opportunity to improve Wesleyan University's dated library home page, a team of librarians employed ethnographic techniques to explore how its users interacted with Wesleyan's current library home page and web pages in general. Based on the data that emerged, a group of library staff and members of the campus' information…

Web page sorting algorithm based on query keyword distance relation

Science.gov (United States)

Yang, Han; Cui, Hong Gang; Tang, Hao

2017-08-01

In order to optimize the problem of page sorting, according to the search keywords in the web page in the relationship between the characteristics of the proposed query keywords clustering ideas. And it is converted into the degree of aggregation of the search keywords in the web page. Based on the PageRank algorithm, the clustering degree factor of the query keyword is added to make it possible to participate in the quantitative calculation. This paper proposes an improved algorithm for PageRank based on the distance relation between search keywords. The experimental results show the feasibility and effectiveness of the method.

Proceedings of Damping 󈨟, 13-15 February 1991, San Diego, California; Volume 1 (Pages AAC-1 through DCC-19)

Science.gov (United States)

1991-08-01

SUPPLEMENTARY NOTATION Pages AAC-1 through DCC-19 17. COSATI CODES FIELD GROUP SU8 -GROUP 18. SUBJECT TERMS (Continue on reverse if necessary and...Direct Complex Stiffness Method Bradley R. Allen and Earl Pinson Direct Measurement of the Dynamic Material Properties of Polymers EB A for Low...half of the members are in nonmetallic industries ( many are in polymer industries ) and belong to the maker’s side of damping materials. About 35

CrazyEgg Reports for Single Page Analysis

Science.gov (United States)

CrazyEgg provides an in depth look at visitor behavior on one page. While you can use GA to do trend analysis of your web area, CrazyEgg helps diagnose the design of a single Web page by visually displaying all visitor clicks during a specified time.

An Adaptive Reordered Method for Computing PageRank

Directory of Open Access Journals (Sweden)

Yi-Ming Bu

2013-01-01

Full Text Available We propose an adaptive reordered method to deal with the PageRank problem. It has been shown that one can reorder the hyperlink matrix of PageRank problem to calculate a reduced system and get the full PageRank vector through forward substitutions. This method can provide a speedup for calculating the PageRank vector. We observe that in the existing reordered method, the cost of the recursively reordering procedure could offset the computational reduction brought by minimizing the dimension of linear system. With this observation, we introduce an adaptive reordered method to accelerate the total calculation, in which we terminate the reordering procedure appropriately instead of reordering to the end. Numerical experiments show the effectiveness of this adaptive reordered method.

Using shadow page cache to improve isolated drivers performance.

Science.gov (United States)

Zheng, Hao; Dong, Xiaoshe; Wang, Endong; Chen, Baoke; Zhu, Zhengdong; Liu, Chengzhe

2015-01-01

With the advantage of the reusability property of the virtualization technology, users can reuse various types and versions of existing operating systems and drivers in a virtual machine, so as to customize their application environment. In order to prevent users' virtualization environments being impacted by driver faults in virtual machine, Chariot examines the correctness of driver's write operations by the method of combining a driver's write operation capture and a driver's private access control table. However, this method needs to keep the write permission of shadow page table as read-only, so as to capture isolated driver's write operations through page faults, which adversely affect the performance of the driver. Based on delaying setting frequently used shadow pages' write permissions to read-only, this paper proposes an algorithm using shadow page cache to improve the performance of isolated drivers and carefully study the relationship between the performance of drivers and the size of shadow page cache. Experimental results show that, through the shadow page cache, the performance of isolated drivers can be greatly improved without impacting Chariot's reliability too much.

Phase transitions in Fe{sub 0.5}Co{sub 0.5} (110) thin films

Energy Technology Data Exchange (ETDEWEB)

Ramírez-Dámaso, G., E-mail: gramirezd@ipn.mx [Escuela Superior de Ingeniería y Arquitectura “Unidad Ticomán” del Instituto Politécnico Nacional, Av. Ticomán No. 600, Col. San José Ticomán, Del. G. A. M., C. P. 07330 Ciudad de México (Mexico); Castillo-Alvarado, F.L. [Escuela Superior de Física y Matemáticas del Instituto Politécnico Nacional, Edificio 9, Col. San Pedro Zacatenco, C. P. 07738 Ciudad de México (Mexico); Rojas-Hernández, E. [Escuela Superior de Ingeniería y Arquitectura “Unidad Ticomán” del Instituto Politécnico Nacional, Av. Ticomán No. 600, Col. San José Ticomán, Del. G. A. M., C. P. 07330 Ciudad de México (Mexico)

2016-12-15

In this paper, we present calculations for two second-order phase transitions in (110) Fe{sub 0.5}Co{sub 0.5} thin films with 11, 15, and 19 monoatomic layers. The lattice and magnetic transitions are based on thermodynamic equilibrium considerations of the magnetic alloy. The procedure proposed by Valenta and Sukiennicki was applied to calculate the composition x(i), the lattice order parameter t(i), and the magnetic order parameter σ(i) as a function of temperature T. We confirmed that both phase transitions, lattice and magnetic, are of the second order, in accordance with experimental results in the literature. The obtained behavior of these parameters indicates their inhomogeneity due to the boundary conditions on the surfaces of the thin film.

Training Activity Summary Page (TASP) State and Tribe

Data.gov (United States)

U.S. Department of Health & Human Services — The Training Activity Summary Page (formerly the Training Exit Survey Cover Page) dataset contains data about each training event. This dataset includes information...

stage/page/play

DEFF Research Database (Denmark)

context. Contributors: Per Brask, Dario Fo, Jette Barnholdt Hansen, Pil Hansen, Sven Åke Heed, Ulla Kallenbach, Sofie Kluge, Annelis Kuhlmann, Kela Kvam, Anna Lawaetz, Bent Flemming Nielsen, Franco Perrelli, Magnus Tessing Schneider, Antonio Scuderi. stage/page/play is published as a festschrift...

2018-05-11T15:05:30Z https://www.ajol.info/index.php/all/oai oai:ojs ...

African Journals Online (AJOL)

Among boys younger age (12 years and younger), being physically inactive, ... among girls none of the variables (dietary behaviour, substance use, physical activity ... Increasing physical activity participation should be the focus of strategies ...

Give your feedback on the new Users’ page

CERN Multimedia

CERN Bulletin

If you haven't already done so, visit the new Users’ page and provide the Communications group with your feedback. You can do this quickly and easily via an online form. A dedicated web steering group will design the future page on the basis of your comments. As a first step towards reforming the CERN website, the Communications group is proposing a ‘beta’ version of the Users’ pages. The primary aim of this version is to improve the visibility of key news items, events and announcements to the CERN community. The beta version is very much work in progress: your input is needed to make sure that the final site meets the needs of CERN’s wide and mixed community. The Communications group will read all your comments and suggestions, and will establish a web steering group that will make sure that the future CERN web pages match the needs of the community. More information on this process, including the gradual 'retirement' of the grey Users' pages we are a...

Classroom Web Pages: A "How-To" Guide for Educators.

Science.gov (United States)

Fehling, Eric E.

This manual provides teachers, with very little or no technology experience, with a step-by-step guide for developing the necessary skills for creating a class Web Page. The first part of the manual is devoted to the thought processes preceding the actual creation of the Web Page. These include looking at other Web Pages, deciding what should be…

OnlineMin: A Fast Strongly Competitive Randomized Paging Algorithm

DEFF Research Database (Denmark)

Brodal, Gerth Stølting; Moruz, Gabriel; Negoescu, Andrei

2012-01-01

approach that both has optimal competitiveness and selects victim pages in subquadratic time. In fact, if k pages fit in internal memory the best previous solution required O(k 2) time per request and O(k) space, whereas our approach takes also O(k) space, but only O(logk) time in the worst case per page...

Functional Multiplex PageRank

Science.gov (United States)

Iacovacci, Jacopo; Rahmede, Christoph; Arenas, Alex; Bianconi, Ginestra

2016-10-01

Recently it has been recognized that many complex social, technological and biological networks have a multilayer nature and can be described by multiplex networks. Multiplex networks are formed by a set of nodes connected by links having different connotations forming the different layers of the multiplex. Characterizing the centrality of the nodes in a multiplex network is a challenging task since the centrality of the node naturally depends on the importance associated to links of a certain type. Here we propose to assign to each node of a multiplex network a centrality called Functional Multiplex PageRank that is a function of the weights given to every different pattern of connections (multilinks) existent in the multiplex network between any two nodes. Since multilinks distinguish all the possible ways in which the links in different layers can overlap, the Functional Multiplex PageRank can describe important non-linear effects when large relevance or small relevance is assigned to multilinks with overlap. Here we apply the Functional Page Rank to the multiplex airport networks, to the neuronal network of the nematode C. elegans, and to social collaboration and citation networks between scientists. This analysis reveals important differences existing between the most central nodes of these networks, and the correlations between their so-called pattern to success.

Systematic analysis of rat 12/15-lipoxygenase enzymes reveals critical role for spinal eLOX3 hepoxilin synthase activity in inflammatory hyperalgesia

OpenAIRE

Gregus, Ann M.; Dumlao, Darren S.; Wei, Spencer C.; Norris, Paul C.; Catella, Laura C.; Meyerstein, Flore G.; Buczynski, Matthew W.; Steinauer, Joanne J.; Fitzsimmons, Bethany L.; Yaksh, Tony L.; Dennis, Edward A.

2013-01-01

Previously, we observed significant increases in spinal 12-lipoxygenase (LOX) metabolites, in particular, hepoxilins, which contribute to peripheral inflammation-induced tactile allodynia. However, the enzymatic sources of hepoxilin synthase (HXS) activity in rats remain elusive. Therefore, we overexpressed each of the 6 rat 12/15-LOX enzymes in HEK-293T cells and measured by LC-MS/MS the formation of HXB3, 12-HETE, 8-HETE, and 15-HETE from arachidonic acid (AA) at baseline and in the presenc...

Recognition of pornographic web pages by classifying texts and images.

Science.gov (United States)

Hu, Weiming; Wu, Ou; Chen, Zhouyao; Fu, Zhouyu; Maybank, Steve

2007-06-01

With the rapid development of the World Wide Web, people benefit more and more from the sharing of information. However, Web pages with obscene, harmful, or illegal content can be easily accessed. It is important to recognize such unsuitable, offensive, or pornographic Web pages. In this paper, a novel framework for recognizing pornographic Web pages is described. A C4.5 decision tree is used to divide Web pages, according to content representations, into continuous text pages, discrete text pages, and image pages. These three categories of Web pages are handled, respectively, by a continuous text classifier, a discrete text classifier, and an algorithm that fuses the results from the image classifier and the discrete text classifier. In the continuous text classifier, statistical and semantic features are used to recognize pornographic texts. In the discrete text classifier, the naive Bayes rule is used to calculate the probability that a discrete text is pornographic. In the image classifier, the object's contour-based features are extracted to recognize pornographic images. In the text and image fusion algorithm, the Bayes theory is used to combine the recognition results from images and texts. Experimental results demonstrate that the continuous text classifier outperforms the traditional keyword-statistics-based classifier, the contour-based image classifier outperforms the traditional skin-region-based image classifier, the results obtained by our fusion algorithm outperform those by either of the individual classifiers, and our framework can be adapted to different categories of Web pages.

Multiple-task real-time PDP-15 operating system for data acquisition and analysis

International Nuclear Information System (INIS)

Myers, W.R.

1974-01-01

The RAMOS operating system is capable of handling up to 72 simultaneous tasks in an interrupt-driven environment. The minimum viable hardware configuration includes a Digital Equipment Corporation PDP-15 computer with 16384 words of memory, extended arithmetic element, automatic priority interrupt, a 256K-word RS09 DECdisk, two DECtape transports, and an alphanumeric keyboard/typer. The monitor executes major tasks by loading disk-resident modules to memory for execution; modules are written in a format that allows page-relocation by the monitor, and can be loaded into any available page. All requests for monitor service by tasks, including input/output, floating point arithmetic, request for additional memory, task initiation, etc., are implemented by privileged monitor calls (CAL). All IO device handlers are capable of queuing requests for service, allowing several tasks ''simultaneous'' use of all resources. All alphanumeric IO (including the PC05) is completely buffered and handled by a single multiplexing routine. The floating point arithmetic software is re-entrant to all operating modules and includes matrix arithmetic functions. One of the system tasks can be a ''batch'' job, controlled by simulating an alphanumeric command terminal through cooperative functions of the disk handler and alphanumeric device software. An alphanumeric control sequence may be executed, automatically accessing disk-resident tasks in any prescribed order; a library of control sequences is maintained on bulk storage for access by the monitor. (auth)

WebScore: An Effective Page Scoring Approach for Uncertain Web Social Networks

Directory of Open Access Journals (Sweden)

Shaojie Qiao

2011-10-01

Full Text Available To effectively score pages with uncertainty in web social networks, we first proposed a new concept called transition probability matrix and formally defined the uncertainty in web social networks. Second, we proposed a hybrid page scoring algorithm, called WebScore, based on the PageRank algorithm and three centrality measures including degree, betweenness, and closeness. Particularly,WebScore takes into a full consideration of the uncertainty of web social networks by computing the transition probability from one page to another. The basic idea ofWebScore is to: (1 integrate uncertainty into PageRank in order to accurately rank pages, and (2 apply the centrality measures to calculate the importance of pages in web social networks. In order to verify the performance of WebScore, we developed a web social network analysis system which can partition web pages into distinct groups and score them in an effective fashion. Finally, we conducted extensive experiments on real data and the results show that WebScore is effective at scoring uncertain pages with less time deficiency than PageRank and centrality measures based page scoring algorithms.

Typing of Typhoidal Salmonella Using Extraction of Water Soluble Whole Cell Proteins and Analysing by SDS-PAGE

Directory of Open Access Journals (Sweden)

R. Yousefi Mashouf

2005-10-01

Full Text Available Introduction & Objective : Salmonella is one of the most important genus of Enterobacteriacea family. The aim of this study was typing of typhoidal Salmonella by SDS-PAGE and comparing the results with those of serotyping method.Materials and Methods: In this study, 4 reference strains of Salmonella species, 5 reference strains of Enterobacteriacea family and 100 clinical isolates of Salmonella that were previously collected from laboratories of Hamadan medical centers were studied. Serotyping of strains were performed by Biomereux and Difco monovalent antisera. Whole-cell proteins of strains were also separated on 10% poly acrylamide gel. Gels were stained by Coomassie Brilliant Blue and analyzed by densitometry. Results: Of 100 cases of Salmonella species, 43 cases (43% were S. typhi, 20 cases (20% were S. typhymurium, 12 cases (12% were S. para typhi B, 10 cases (10% were S. para typhi C, S. para typhi A 1 case (1% and other cases were non-typhoidal Salmonella. The results of serotyping were compared with the results obtained by SDS-PAGE. Many protein bands from 220 KDa to 18.5 KDa were detected by SDS-PAGE and they were used to differentiate the strains. S. typhi serotypes were divided into 5 sub-species and S. para typhi B and C were divided each into 3 sub-species. Protein profiles of the reference strains of Salmonella were compared with protein profiles of Enterobacteriaceae species and showed some differences in major protein bands, however, they had a very similar protein band in 43 KDa area. Conclusion: Since our data was able to divide Salmonella species to sub-types and differentiate them from Enterobacteriacea species, we concluded that analsying SDS-PAGE profile of water soluble whole-cell proteins can be used for typing of these organisms and it is comparble with serotyping, nevertheless, further researches are needed to establish SDS-PAGE method and to replace it with serotyping method.

: tous les projets | Page 12 | CRDI - Centre de recherches pour le ...

International Development Research Centre (IDRC) Digital Library (Canada)

Le système de justice bolivien obtient une condamnation dans moins de 0,05 % des causes d'agression sexuelle envers les enfants. Région: Bolivia, Canada. Programme: Governance and Justice. Financement total : CA$ 63,700.00. Étude sur le rendement du système de justice public en Bolivie. Projet. Le système de ...

Buying a Constant Competitive Ratio for Paging

NARCIS (Netherlands)

Csirik, János; Imreh, Csanád; Noga, John; Seiden, Steve S.; Woeginger, Gerhard; Meyer auf der Heide, Friedhelm

2001-01-01

We consider a variant of the online paging problem where the online algorithm may buy additional cache slots at a certain cost. The overall cost incurred equals the total cost for the cache plus the number of page faults. This problem and our results are a generalization of both, the classical

Buying a constant competitive ratio for paging

NARCIS (Netherlands)

Csirik, J.; Imreh, Cs.; Noga, J.; Seiden, S.S.; Woeginger, G.J.; Meyer auf der Heide, F.

2001-01-01

We consider a variant of the online paging problem where the online algorithm may buy additional cache slots at a certain cost. The overall cost incurred equals the total cost for the cache plus the number of page faults. This problem and our results are a generalization of both, the classical

Impact of Article Page Count and Number of Authors on Citations in Disability Related Fields: A Systematic Review Article.

Science.gov (United States)

Ahmed, Abubakar; Adam, Mastura; Ghafar, Norafida A; Muhammad, Murtala; Ebrahim, Nader Ale

2016-09-01

Citation metrics and total publications in a field has become the gold standard for rating researchers and viability of a field. Hence, stimulating demand for citation has led to a search for useful strategies to improve performance metric index. Meanwhile, title, abstract and morphologic qualities of the articles attract researchers to scientific publications. Yet, there is relatively little understanding of the citation trend in disability related fields. We aimed to provide an insight into the factors associated with citation increase in this field. Additionally, we tried to know at what page number an article might appear attractive to disability researchers needs. Thus, our focus is placed on the article page count and the number of authors contributing to the fields per article. To this end, we evaluated the quantitative characteristics of top cited articles in the fields with a total citation (≥50) in the Web of Science (WoS) database. Using one-way independent ANOVA, data extracted spanning a period of 1980-2015 were analyzed, while the non-parametric data analysis uses Kruskal-Walis test. Articles with 11 to 20 pages attract more citations followed by those within the range of zero to 10. Articles with upward 21 pages are the least cited. Surprisingly, articles with more than two authors are significantly ( P <0.05) less cited and the citation decreases as the number of authors increased. Collaborative studies enjoy wider utilization and more citation, yet discounted merit of additional pages and limited collaborative research in disability field is revealed in this study.

Enhanced magnetoresistance and Griffiths phase induced by Mo substitution in La0.7Ca0.15Sr0.15Mn1-xMoxO3 (0 ≤ x ≤ 0.05)

International Nuclear Information System (INIS)

Narsinga Rao, G; Chen, J W; Neeleshwar, S; Chen, Y Y; Wu, M K

2009-01-01

Structural, magnetic and electrical properties of the La 0.7 Ca 0.15 Sr 0.15 Mn 1-x Mo x O 3 (0 ≤ x ≤ 0.05) compounds have been investigated. Powder x-ray analysis reveals that the sample with x = 0 crystallizes in the rhombohedral (R 3-bar c) structure, whereas in the Mo doped samples the structure can be indexed by an orthorhombic (Pbnm) structure. The important observations of the magnetic and transport properties are: (i) the Mo substitution induces a distinct suppression of the metal-insulator (T MI ) and ferromagnetic (FM)-paramagnetic transition (T C ) and the temperature of T MI was found to be higher than T C in the Mo-doped samples, (ii) the substitution of Mo enhances the magnetoresistance at room temperature, (iii) a large deviation from the Curie-Weiss law well above T C in the Mo substituted samples indicates the existence of a Griffiths phase and (iv) long-range FM order persists in all samples with a linear decrease of saturation moment as x increases. These results are discussed in terms of the Mn-site disorder and opening of strong FM coupling between Mn 2+ -O-Mn 3+ , due to the Mn 2+ ions induced by Mo 6+ at the expense of Mn 4+ ions in the La 0.7 Ca 0.15 Sr 0.15 Mn 1-x Mo x O 3 system.

Influence of the addition of Lactobacillus acidophilus La-05, Bifidobacterium animalis subsp. lactis Bb-12 and inulin on the technological, physicochemical, microbiological and sensory features of creamy goat cheese.

Science.gov (United States)

Barbosa, Ilsa C; Oliveira, Maria E G; Madruga, Marta S; Gullón, Beatriz; Pacheco, Maria T B; Gomes, Ana M P; Batista, Ana S M; Pintado, Maria M E; Souza, Evandro L; Queiroga, Rita C R E

2016-10-12

The effects of the addition of Lactobacillus acidophilus LA-05, Bifidobacterium animalis subsp. lactis BB-12 and inulin on the quality characteristics of creamy goat cheese during refrigerated storage were evaluated. The manufactured cheeses included the addition of starter culture (Lactococcus lactis subsp. lactis and Lactococcus lactis subsp. cremoris - R-704) (CC); starter culture, L. acidophilus LA-05 and inulin (CLA); starter culture, B. lactis BB-12 and inulin (CBB); or starter culture, L. acidophilus LA-05, B. lactis BB-12 and inulin (CLB). In the synbiotic cheeses (CLA, CBB and CLB), the counts of L. acidophilus LA-05 and B. lactis BB-12 were greater than 6log CFU g -1 , the amount of inulin was greater than 6 g per 100 g, and the firmness was reduced. The cheeses evaluated had high brightness values (L*), with a predominance of yellow (b*). CC had higher contents of proteins, lipids and minerals compared to the other cheeses. There was a decrease in the amount of short-chain fatty acids (SCFAs) and an increase of medium-chain (MCFAs) and long-chain fatty acids (LCFAs) in the synbiotic cheeses compared to CC. The amount of conjugated linoleic acid increased in CLA, CBB and CLB. The highest depth of proteolysis and the greatest changes in the release of free amino acids were found in CLB. The addition of inulin and probiotics, alone or in co-culture, did not affect the cheese acceptance. Inulin and probiotics can be used together for the production of creamy goat cheese without negatively affecting the general quality characteristics of the product, and to add value because of its synbiotic potential.

Digital Learning in California's K-12 Schools. Just the Facts

Science.gov (United States)

Gao, Niu

2015-01-01

This fact page briefly discusses the following facts on digital learning in California's K-12: (1) As California implements new tests in its K-12 schools, technology infrastructure is a key concern; (2) Many districts are confident that they had enough bandwidth for online field tests; (3) Digital learning will require significantly greater…

Comparison of phase composition, morphology and electrochemical property for Li3−xNaxV2(PO4)3 (x=0.5, 1.5 and 2.0) as lithium storage cathode materials

International Nuclear Information System (INIS)

Mao, Jinli; Shao, Lianyi; Li, Peng; Lin, Xiaoting; Shui, Miao; Long, Nengbing; Shu, Jie

2015-01-01

Graphical abstract: Display Omitted -- Highlights: •Li 3−x Na x V 2 (PO 4 ) 3 is prepared by a solid-state reaction method. •Li 2.5 Na 0.5 V 2 (PO 4 ) 3 is a three-phase mixture. •Both Li 1.5 Na 1.5 V 2 (PO 4 ) 3 and LiNa 2 V 2 (PO 4 ) 3 are two-phase composite. •Lithium ion diffusion coefficient is detected by cyclic voltammetry. •Structural change of LiNa 2 V 2 (PO 4 ) 3 is observed by in-situ XRD. -- Abstract: Three Li 3-x Na x V 2 (PO 4 ) 3 (x=0.5, 1.5 and 2.0) samples are synthesized by a traditional solid-state reaction method in this work. Their phase composition, surface morphology and electrochemical property are described and compared by using various physical/chemical methods. Phase analysis results reveal that Li 2.5 Na 0.5 V 2 (PO 4 ) 3 consists of monoclinic Li 3 V 2 (PO 4 ) 3 , rhombohedral Li 3 V 2 (PO 4 ) 3 and rhombohedral Na 3 V 2 (PO 4 ) 3. While, both Li 1.5 Na 1.5 V 2 (PO 4 ) 3 and LiNa 2 V 2 (PO 4 ) 3 are the two-phase mixture consisted of rhombohedral Li 3 V 2 (PO 4 ) 3 and rhombohedral Na 3 V 2 (PO 4 ) 3 . Electrochemical testing results reveal that LiNa 2 V 2 (PO 4 ) 3 and Li 1.5 Na 1.5 V 2 (PO 4 ) 3 can deliver the initial discharge capacities of 101.4 mAh g −1 and 108.6 mAh g −1 with a long potential plateau at 3.69 V, respectively. In contrast, Li 2.5 Na 0.5 V 2 (PO 4 ) 3 presents an initial discharge capacity of 111.7 mAh g −1 with four potential plateaus. High lithium ion diffusion coefficient in Li 2.5 Na 0.5 V 2 (PO 4 ) 3 indicates that the existence of monoclinic Li 3 V 2 (PO 4 ) 3 phase can improve the ionic conductivity and then be responsible for good electrochemical performance. Besides, in-situ X-ray diffraction observation of LiNa 2 V 2 (PO 4 ) 3 demonstrates that the phase transition is not fully reversible but quasi-reversible during the lithiation-delithiation process. The partial irreversibility of structural evolution for LiNa 2 V 2 (PO 4 ) 3 induces the capacity loss upon repeated cycles

Exploring the use of a Facebook page in anatomy education.

Science.gov (United States)

Jaffar, Akram Abood

2014-01-01

Facebook is the most popular social media site visited by university students on a daily basis. Consequently, Facebook is the logical place to start with for integrating social media technologies into education. This study explores how a faculty-administered Facebook Page can be used to supplement anatomy education beyond the traditional classroom. Observations were made on students' perceptions and effectiveness of using the Page, potential benefits and challenges of such use, and which Insights metrics best reflect user's engagement. The Human Anatomy Education Page was launched on Facebook and incorporated into anatomy resources for 157 medical students during two academic years. Students' use of Facebook and their perceptions of the Page were surveyed. Facebook's "Insights" tool was also used to evaluate Page performance during a period of 600 days. The majority of in-class students had a Facebook account which they adopted in education. Most students perceived Human Anatomy Education Page as effective in contributing to learning and favored "self-assessment" posts. The majority of students agreed that Facebook could be a suitable learning environment. The "Insights" tool revealed globally distributed fans with considerable Page interactions. The use of a faculty-administered Facebook Page provided a venue to enhance classroom teaching without intruding into students' social life. A wider educational use of Facebook should be adopted not only because students are embracing its use, but for its inherent potentials in boosting learning. The "Insights" metrics analyzed in this study might be helpful when establishing and evaluating the performance of education-oriented Facebook Pages. © 2013 American Association of Anatomists.

7 CFR 15.71 - Form of documents to be filed.

Science.gov (United States)

2010-01-01

... Agriculture Office of the Secretary of Agriculture NONDISCRIMINATION Rules of Practice and Procedure for... and Service of Documents § 15.71 Form of documents to be filed. All copies of documents filed in a... shall show the docket number and title of the proceeding on the front page. ...

Three results on the PageRank vector: eigenstructure, sensitivity, and the derivative

OpenAIRE

Gleich, David; Glynn, Peter; Golub, Gene; Greif, Chen

2007-01-01

The three results on the PageRank vector are preliminary but shed light on the eigenstructure of a PageRank modified Markov chain and what happens when changing the teleportation parameter in the PageRank model. Computations with the derivative of the PageRank vector with respect to the teleportation parameter show predictive ability and identify an interesting set of pages from Wikipedia.

Improving the Electrochemical Performance of LiNi0.80Co0.15Al0.05O2 in Lithium Ion Batteries by LiAlO2 Surface Modification

Directory of Open Access Journals (Sweden)

Chunhua Song

2018-03-01

Full Text Available LiNi0.80Co0.15Al0.05O2 (NCA as a lithium ion battery cathode material has received attention for its highly specific capacity and excellent low temperature performance. However, the disadvantages of its high surface lithium compound residues and high pH value have influenced its processing performance and limited its application. This paper uses a facile method to modify NCA through LiAlO2 coating. The results showed that when the molar ratio of Al(NO33·9H2O and lithium compound residues at the surface of NCA cathode material was 0.25:1, the pH of the cathode material decreased from 12.70 to 11.80 and the surface lithium compound residues decreased from 3.99% to 1.48%. The NCA cell was charged and discharged for 100 cycles at 1 C in the voltage range of 3.0–4.3 V, to test the capacity retention of NCA. It was found to be as high as 94.67%, which was 5.36% higher than the control NCA cell. The discharge capacity of NCA-0.25-500 °C was 139.8 mAh/g even at 8 C rate, which was 15% higher than the raw NCA. Further research indicated that Al(NO33·9H2O reacted with the surface lithium compound residues of NCA and generated LiAlO2, which improved the NCA electrochemical performance.

PageRank tracker: from ranking to tracking.

Science.gov (United States)

Gong, Chen; Fu, Keren; Loza, Artur; Wu, Qiang; Liu, Jia; Yang, Jie

2014-06-01

Video object tracking is widely used in many real-world applications, and it has been extensively studied for over two decades. However, tracking robustness is still an issue in most existing methods, due to the difficulties with adaptation to environmental or target changes. In order to improve adaptability, this paper formulates the tracking process as a ranking problem, and the PageRank algorithm, which is a well-known webpage ranking algorithm used by Google, is applied. Labeled and unlabeled samples in tracking application are analogous to query webpages and the webpages to be ranked, respectively. Therefore, determining the target is equivalent to finding the unlabeled sample that is the most associated with existing labeled set. We modify the conventional PageRank algorithm in three aspects for tracking application, including graph construction, PageRank vector acquisition and target filtering. Our simulations with the use of various challenging public-domain video sequences reveal that the proposed PageRank tracker outperforms mean-shift tracker, co-tracker, semiboosting and beyond semiboosting trackers in terms of accuracy, robustness and stability.

Upgrade of CERN OP Webtools IRRAD Page

CERN Document Server

Vik, Magnus Bjerke

2017-01-01

CERN Beams Department maintains a website with various tools for the Operations Group, with one of them being specific for the Proton Irradiation Facility (IRRAD). The IRRAD team use the tool to follow up and optimize the operation of the facility. The original version of the tool was difficult to maintain and adding new features to the page was challenging. Thus this summer student project is aimed to upgrade the web page by rewriting the web page with maintainability and flexibility in mind. The new application uses a server--client architecture with a REST API on the back end which is used by the front end to request data for visualization. PHP is used on the back end to implement the API's and Swagger is used to document them. Vue, Semantic UI, Webpack, Node and ECMAScript 5 is used on the fronted to visualize and administrate the data. The result is a new IRRAD operations web application with extended functionality, improved structure and an improved user interface. It includes a new Status Panel page th...

CERN Technical Training: available Places in forthcoming Courses

CERN Multimedia

2007-01-01

The following course sessions are scheduled in the framework of the CERN Technical Training Program 2007 and still have places available. You may find the full, updated Technical Training course program on our web-catalogue web-catalogue. OFFICE SOFTWARE Excel 2007 (Short Course III) - How to pivot tables F/E 09.11 0.5 d Introduction to Sharepoint E 15.11 1 d Excel 2007 (Short Course IV) - How to link cells, worksheets and workbooks E/F 16.11 0.5 d Project Planning with MS-Project E 21/11 + 28/11 2 d Excel 2007 Level 2 : ECDL E 26-27.11 2 d FrontPage 2003 - Level 1 E 29-30.11 2 d Excel 2007 - niveau 1 : ECDL F 10-11.12 2 d Word 2007 - niveau 2 : ECDL F 13-14.12 2 d SOFTWARE AND SYSTEM TECHNOLOGIES C++ for Particle Physicists E 05-09.11 3 d ...

CERN Technical Training: available Places in forthcoming Courses

CERN Multimedia

2007-01-01

The following course sessions are scheduled in the framework of the CERN Technical Training Program 2007 and still have places available. You may find the full, updated Technical Training course program on our web-catalogue web-catalogue. OFFICE SOFTWARE Excel 2007 Niveau 2 : ECDL F 11-12.10 2 d Excel 2007 (Short Course II) - How to format your worksheet for printing E/F 12.10 0.5 d FrontPage 2003 - niveau 2 F 22-23.10 2 d Excel 2007 Level 2 : ECDL F 25-26.10 2 d Nouveauté Word 2007 E/F 29.10 1 d Nouveauté Excel 2007 E/F 30.10 0.5 d Excel 2007 (Short Course III) - How to pivot tables F/E 09.11 0.5 d Introduction to Sharepoint E 15.11 1 d Nouveauté Powerpoint 2007 E/F 16.11 1 d Excel 2007 (Short Course IV) - How to link cells, work...

No Hawking-Page phase transition in three dimensions

International Nuclear Information System (INIS)

Myung, Y.S.

2005-01-01

We investigate whether or not the Hawking-Page phase transition is possible to occur in three dimensions. Starting with the simplest class of Lanczos-Lovelock action, thermodynamic behavior of all AdS-type black holes without charge falls into two classes: Schwarzschild-AdS black holes in even dimensions and Chern-Simons black holes in odd dimensions. The former class can provide the Hawking-Page transition between Schwarzschild-AdS black holes and thermal AdS space. On the other hand, the latter class is exceptional and thus the Hawking-Page transition is hard to occur. In three dimensions, a second-order phase transition might occur between the non-rotating BTZ black hole and the massless BTZ black hole (thermal AdS space), instead of the first-order Hawking-Page transition between the non-rotating BTZ black hole and thermal AdS space

Measurements of spallation neutrons from a thick lead target bombarded with 0.5 and 1.5 GeV protons

Energy Technology Data Exchange (ETDEWEB)

Meigo, Shin-ichiro; Takada, Hiroshi; Chiba, Satoshi [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment] [and others

1997-03-01

Double differential neutron spectra from a thick lead target bombarded with 0.5 and 1.5 GeV protons have been measured with the time-of-flight technique. In order to obtain the neutron spectra without the effect of the flight time fluctuation by neutron scattering in the target, an unfolding technique has also been employed in the low energy region below 3 MeV. The measured data have been compared with the calculated results of NMTC/JAERI-MCNP-4A code system. It has been found that the code system gives about 50 % lower neutron yield than the experimental ones in the energy region between 20 and 80 MeV for both incident energies. The disagreements, however, have been improved well by taking account of the inmedium nucleon-nucleon scattering cross sections in the NMTC/JAERI code. (author)

Zooplankton biomass (displacement volume) data collected during the NMFS Marine Mammal Survey program from Pacific Ocean from 1998-08-03 to 2006-12-05 (NODC Accession 0071761)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — Zooplankton biomass (displacement volume) data collected during the NMFS Marine Mammal Survey program from Pacific Ocean from 1998-08-03 to 2006-12-05, data were...

Crystal structure and optical absorption spectra of Ga{sub 0.5}Fe{sub 0.5}InS{sub 3} and Ga{sub 0.5}Fe{sub 0.25}In{sub 1.25}S{sub 3} crystals; Struktura i opticheskoe pogloshchenie kristallov Ga{sub 0.5}Fe{sub 0.5}InS{sub 3} i Ga{sub 0.5}Fe{sub 0.25}In{sub 1.25}S{sub 3}

Energy Technology Data Exchange (ETDEWEB)

Gusejnov, G G; Musaeva, N N; Kyazumov, M G [NAN Azerbajdzhana, Inst. Fiziki, Baku (Azerbaijan); Asadova, I B; Aliev, O M [NAN Azerbajdzhana, Inst. Neorganicheskoj i Fizicheskoj Khimii, Baku (Azerbaijan)

2003-09-01

Single crystals of Ga{sub 0.5}Fe{sub 0.5}InS{sub 3} are grown by the method of chemical gas-transport reactions and those of Ga{sub 0.5}Fe{sub 0.25}In{sub 1.25}S{sub 3} - by Bridgman method. X-ray diffraction studies reveal that they crystallize in trigonal and rhombohedral systems with lattice parameters of a = 3.796 x 2 A, c = 12.210 A, P3m1; a = 3.786 x 2 A, c = 36.606 A, R3m, respectively. An optical absorption edge in a wide range of photon energy and an energy gap width are determined: E{sub g} = 1.885 eV for Ga{sub 0.5}Fe{sub 0.5}InS{sub 3} and E{sub g} 1.843 eV for Ga{sub 0.5}Fe{sub 0.25}In{sub 1.25}S{sub 3}.

The impact of Arizona Highways Magazine's facebook page.

Science.gov (United States)

2014-02-01

This project examined the relationship between use of the Arizona Highways magazine (AHM) Facebook Page and the decision to : travel to or within Arizona. Key purposes were to: (1) provide a thorough understanding of AHM Facebook Page users, includin...

The effect of texture in (Bi3.5Nd0.5)(Ti2.97Nb0.03)O12 ceramics

Science.gov (United States)

Cao, Ziping; Ding, Aili; Zheng, Xinsen; Qiu, Pingsun; Cheng, Wenxiu

2004-11-01

(Bi3.5Nd0.5) (Ti2.97Nb0.03)O12 ferroelectric ceramics was successfully prepared by a hot-pressing method. XRD diffraction confirms that the samples hold different texture in the sliced planes parallel and perpendicular to the hot-pressing axis, respectively. The anisotropy of ferroelectric, dielectric and piezoelectric properties were all observed in the textured ceramics. Due to the great improvement of ferroelectric and piezoelectric properties, the sample which was sliced along the direction parallel to the hot-pressing axis can be considered as a good candidate of high temperature piezoelectric materials.

Customisation of Indico pages - Layout and Menus

CERN Multimedia

CERN. Geneva; Ferreira, Pedro

2017-01-01

In this tutorial you are going to learn how to customize the layout of your Indico pages (for example you can change the color of the background images or change the logo) and the menus on your Indico pages  (for example you can add or hide certain blocks, or change their name and order).  

EDUCATIONAL PAGES IN FACEBOOK - A STUDY

OpenAIRE

Dr.N.Ramakrishnan; Mrs. R.PrasithaIndhumathy

2017-01-01

Facebook Pages are a great resource for educational technology professionals to find companies, thought leaders, groups and organizations to share ideas and experiences with peers while expanding industry knowledge and increasing connections. Like most Facebook users, many educators use Facebook to connect with friends new and old, but the Internet's most popular site can also be a great learning and teaching tool. There are many Facebook pages that have been created as a resource to collect,...

Oral health status and treatment needs among 12- and 15-year-old government and private school children in Shimla city, Himachal Pradesh, India.

Science.gov (United States)

Shailee, Fotedar; Girish, M Sogi; Kapil, R Sharma; Nidhi, Pruthi

2013-01-01

To assess the dental caries, periodontal health, and malocclusion of school children aged 12 and 15 years in Shimla city and to compare them in government and private schools. A cross-sectional study of 12- and 15-year-old children in government and private schools was conducted in Shimla city, Himachal Pradesh, India. A sample of 1011 school children (both males and females) was selected by a two-stage cluster sampling method. Clinical recordings of dental caries and malocclusion were done according to World Health Organization diagnostic criteria 1997. Periodontal health was assessed by Community Periodontal Index of Treatment Needs index. The data collected was analyzed by SPSS package 13. The statistical tests used were t-test and Chi-square tests. The prevalence of dental caries was 32.6% and 42.2% at 12 and 15 years, respectively. At the12 years of age, the mean decayed, missing, filled teeth was 0.62 ± 1.42 and it was 1.06 ± 2.93 at 15 years of age. Females had higher level of caries than males at both the ages. At both ages, mean of decayed teeth was statistically higher in government schools as compared with private schools. Children in government schools had significantly less number of mean filled teeth at both ages as compared with private schools. The healthy component of gingiva was present in higher percentage of children in private schools as compared with government schools at both the age groups. The prevalence of malocclusion among the 12- year-old (58.1%) was more as compared with that among the 15-year-old (53.5%). The caries experience of 12- and 15-year-old children was low but the prevalence of gingivitis and malocclusion was quite high. Effective oral health promotion strategies need to be implemented to improve the oral health of school children further in Shimla city.

EFFECTS OF A SHORT-TERM PLYOMETRIC AND RESISTANCE TRAINING PROGRAM ON FITNESS PERFORMANCE IN BOYS AGE 12 TO 15 YEARS

Directory of Open Access Journals (Sweden)

Avery D. Faigenbaum

2007-12-01

Full Text Available The purpose of this study was to compare the effects of a six week training period of combined plyometric and resistance training (PRT, n = 13 or resistance training alone (RT, n = 14 on fitness performance in boys (12-15 yr. The RT group performed static stretching exercises followed by resistance training whereas the PRT group performed plyometric exercises followed by the same resistance training program. The training duration per session for both groups was 90 min. At baseline and after training all participants were tested on the vertical jump, long jump, medicine ball toss, 9.1 m sprint, pro agility shuttle run and flexibility. The PRT group made significantly (p < 0.05 greater improvements than RT in long jump (10.8 cm vs. 2.2 cm, medicine ball toss (39.1 cm vs. 17.7 cm and pro agility shuttle run time (-0.23 sec vs. -0.02 sec following training. These findings suggest that the addition of plyometric training to a resistance training program may be more beneficial than resistance training and static stretching for enhancing selected measures of upper and lower body power in boys

The mechanism of long non-coding RNA MEG3 for neurons apoptosis caused by hypoxia: mediated by miR-181b-12/15-LOX signaling pathway

Directory of Open Access Journals (Sweden)

Xiaomin Liu

2016-09-01

Full Text Available Objective: lncRNAs are recently thought to play a significant role in cellular homeostasis during pathological process of diseases by competing inhibiting miRNA function. The aim of present study was to assess the function of long non-coding RNA (lncRNA MEG3 and its functional interaction with microRNA-181b in cerebral ischemic infarct of mice and hypoxia-induced neurons apoptosis. Methods: To address this question, we performed the experiments with in vivo middle cerebral artery occlusion (MCAO mice model and in vitro oxygen-glucose deprivation (OGD-cultured neuronal HT22 cell line. Relative expression of MEG3, miR-181b and 12/15-LOX (lipoxygenase mRNA was determined using quantitative RT-PCR. Western blot was used to evaluate 12/15-LOX protein expression. TUNEL assay was performed to assess cell apoptosis.Results: In both MCAO mice and OGD-cultured HT22 cell, ischemia or hypoxia treatment results in a time-dependent increase in MEG3 and 12/15-LOX expression and decrease in miR-181b expression. Knockdown of MEG3 contributes to attenuation of hypoxia-induced apoptosis of HT22 cell. Also, expression level of MEG3 negatively correlated with miR-181b expression and positively correlated with 12/15-LOX expression. In contrary to MEG3, miR-181b overexpression attenuated hypoxia-induced HT22 cell apoptosis, as well as suppressed hypoxia-induced increase in 12/15-LOX expression. By luciferase reporter assay, we concluded that miR-181b directly binds to 12/15-LOX 3’-UTR, thereby negatively regulates 12/15-LOX expression. Conclusion: Our data suggested that long non-coding RNA MEG3 functions as a competing endogenous RNA for miR-181b to regulate 12/15-LOX expression in middle cerebral artery occlusion-induced ischemic infarct of brain nerve cells.

Orbital-Specific observation of O2p and Ni3d electrons in LiNi0.5Mn0.5O2, a cathode material for lithium-ion batteries

Directory of Open Access Journals (Sweden)

Yoshinori Satou

2017-09-01

Full Text Available Cathode materials for lithium-ion batteries containing Ni2+ have attracted much interest because of their high theoretical capacity. However, the precise electronic structures of these cathode materials have not yet been clearly observed, especially the energy positions of the O2p and Ni3d orbitals and the shape of the density of states. The aim of this study was to investigate the relative energy positions and shape of the density of states of O2p and Ni3d for LiNi0.5Mn0.5O2 experimentally. We cleaved a LiNi0.5Mn0.5O2 pellet in an Ar-filled glove box and performed synchrotron ultraviolet photoelectron spectroscopy for different photon energies, which enabled us to investigate the relative cross-section intensity of O2p and Ni3d. As a result, the valence-band structure was determined. We found that O2p electrons are itinerant and exist in the vicinity of the Fermi energy more than Ni3d electrons. Ni3d electrons are more localized and spread mainly from 1.2–1.5 eV below the Fermi energy. To validate the electronic structure, we measured the synchrotron O K-edge X-ray absorption fine structure of electrochemically lithium-extracted LiNi0.5Mn0.5O2. The electronic structure demonstrated that ligand holes in the oxygen atoms form below the Fermi level during the initial stage of Li extraction and that the formation rate of the holes decreases with Li extraction.

BOMS-D-15-00965.pdf | forthcoming | boms | Volumes | public ...

Indian Academy of Sciences (India)

Home; public; Volumes; boms; forthcoming; BOMS-D-15-00965.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

BOMS-D-15-01104.pdf | forthcoming | boms | Volumes | public ...

Indian Academy of Sciences (India)

Home; public; Volumes; boms; forthcoming; BOMS-D-15-01104.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

BOMS-D-15-01110.pdf | forthcoming | boms | Volumes | public ...

Indian Academy of Sciences (India)

Home; public; Volumes; boms; forthcoming; BOMS-D-15-01110.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

BOMS-D-15-00018.pdf | forthcoming | boms | Volumes | public ...

Indian Academy of Sciences (India)

Home; public; Volumes; boms; forthcoming; BOMS-D-15-00018.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

BOMS-D-15-00514.pdf | forthcoming | boms | Volumes | public ...

Indian Academy of Sciences (India)

Home; public; Volumes; boms; forthcoming; BOMS-D-15-00514.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year ...

Required Discussion Web Pages in Psychology Courses and Student Outcomes

Science.gov (United States)

Pettijohn, Terry F., II; Pettijohn, Terry F.

2007-01-01

We conducted 2 studies that investigated student outcomes when using discussion Web pages in psychology classes. In Study 1, we assigned 213 students enrolled in Introduction to Psychology courses to either a mandatory or an optional Web page discussion condition. Students used the discussion Web page significantly more often and performed…

Prader-Willi syndrome due to an unbalanced de novo translocation [t(15;19)(q12;p13.3)

Science.gov (United States)

Dang, Vy; Surampalli, Abhilasha; Manzardo, Ann M; Youn, Stephanie; Butler, Merlin G; Gold, June-Anne; Kimonis, Virginia

2018-01-01

Background and Aims Prader-Willi syndrome (PWS) is a complex, multisystem genetic disorder characterized by endocrine, neurologic and behavioral abnormalities. We report the first case of an unbalanced de-novo reciprocal translocation of chromosome 15 and 19: 45,XY,-15, der (19)t(15;19)(q12;p13.3) resulting in monosomy for the PWS chromosome critical region. We performed high resolution SNP microarray to characterize the breakpoints. Case report Our patient had several typical features for PWS including infantile hypotonia, a poor suck and feeding difficulties, tantrums, skin picking, compulsions, small hands and feet and food seeking but not hypopigmentation, a micropenis, cryptorchidism or obesity as common findings seen in PWS at the time of examination at 6 years of age. He had seizures noted from 1 to 3 years of age and marked cognitive delay. Results High resolution SNP microarray analysis identified an atypical PWS Type I deletion of chromosome 15 involving proximal breakpoint BP1. The deletion extended beyond the GABRB3 gene but was proximal to the usual distal breakpoint (BP3) within the 15q11-q13 region and GABRA5, GABRG3 and OCA2 genes were intact. Conclusion We report a case with atypical features for PWS associated with an unbalanced de-novo reciprocal translocation resulting in monosomy for the 15q11.1–15q12 with intact GABRA5, GABRG3 and OCA2 genes. No deletion of 19p13.3 band was detected therefore the patient was not at an increased risk of tumors from Peutz-Jeghers syndrome associated with a deletion of the STK11 gene. PMID:27894106

The volumetric properties of (1,2-propanediol carbonate+benzene, or toluene, or styrene) binary mixtures at temperatures from T=293.15 K to T=353.15 K

International Nuclear Information System (INIS)

Wang Haijun; Wu Yonghua; Huang Jihou

2006-01-01

The densities and excess molar volumes V m E for binary liquid mixtures of (1,2-propanediol carbonate+benzene, or toluene, or ethylbenzene, or styrene) have been measured as a function of compositions using a vibrating-tube densimeter in the temperature range of (293.15 to 353.15) K and at atmospheric pressure. The V m E results were correlated using the fourth-order Redlich-Kister equation. It was found that the V m E in these systems studied increases with rising temperature

Solubilization of Na,K-ATPase from rabbit kidney outer medulla using only C12E8

Directory of Open Access Journals (Sweden)

H.L. Santos

2002-03-01

Full Text Available SDS, C12E8, CHAPS or CHAPSO or a combination of two of these detergents is generally used for the solubilization of Na,K-ATPase and other ATPases. Our method using only C12E8 has the advantage of considerable reduction of the time for enzyme purification, with rapid solubilization and purification in a single chromatographic step. Na,K-ATPase-rich membrane fragments of rabbit kidney outer medulla were obtained without adding SDS. Optimum conditions for solubilization were obtained at 4ºC after rapid mixing of 1 mg of membrane Na,K-ATPase with 1 mg of C12E8/ml, yielding 98% recovery of the activity. The solubilized enzyme was purified by gel filtration on a Sepharose 6B column at 4ºC. Non-denaturing PAGE revealed a single protein band with phosphomonohydrolase activity. The molecular mass of the purified enzyme estimated by gel filtration chromatography was 320 kDa. The optimum apparent pH obtained for the purified enzyme was 7.5 for both PNPP and ATP. The dependence of ATPase activity on ATP concentration showed high (K0.5 = 4.0 µM and low (K0.5 = 1.4 mM affinity sites for ATP, with negative cooperativity. Ouabain (5 mM, oligomycin (1 µg/ml and sodium vanadate (3 µM inhibited the ATPase activity of C12E8-solubilized and purified Na,K-ATPase by 99, 81 and 98.5%, respectively. We have shown that Na,K-ATPase solubilized only with C12E8 can be purified and retains its activity. The activity is consistent with the form of (alphaß2 association.

Automatically annotating web pages using Google Rich Snippets

NARCIS (Netherlands)

Hogenboom, F.P.; Frasincar, F.; Vandic, D.; Meer, van der J.; Boon, F.; Kaymak, U.

2011-01-01

We propose the Automatic Review Recognition and annO- tation of Web pages (ARROW) framework, a framework for Web page review identification and annotation using RDFa Google Rich Snippets. The ARROW framework consists of four steps: hotspot identification, subjectivity analysis, in- formation

Microstructural evolution of direct chill cast Al-15.5Si-4Cu-1Mg-1Ni-0.5Cr alloy during solution treatment

OpenAIRE

He Kezhun; Yu Fuxiao; Zhao Dazhi

2011-01-01

Heat treatment has important influence on the microstructure and mechanical properties of Al-Si alloys. The most common used heat treatment method for these alloys is solution treatment followed by age-hardening. This paper investigates the microstructural evolution of a direct chill (DC) cast Al-15.5Si-4Cu-1Mg-1Ni-0.5Cr alloy after solution treated at 500, 510, 520 and 530℃, respectively for different times. The major phases observed in the as-cast alloy are α-aluminum dendrite, primary Si p...

Web Page Recommendation Using Web Mining

OpenAIRE

Modraj Bhavsar; Mrs. P. M. Chavan

2014-01-01

On World Wide Web various kind of content are generated in huge amount, so to give relevant result to user web recommendation become important part of web application. On web different kind of web recommendation are made available to user every day that includes Image, Video, Audio, query suggestion and web page. In this paper we are aiming at providing framework for web page recommendation. 1) First we describe the basics of web mining, types of web mining. 2) Details of each...

Research on low strain magnetic mechanical hysteresis damping performance of Fe-15Cr-3Mo-0.5Si alloy

International Nuclear Information System (INIS)

Wang, Hui; Huang, Huawei; Hong, Xiaofeng; Yin, Changgeng; Huang, Zhaohua; Chen, Le

2015-01-01

Highlights: • Heat treatment system has a great effect on the alloy damping performance. • Damping performance does not improve monotonously with temperature. • Furnace cooling is higher than that of alloy after air cooling. • There is an optimum annealing temperature and grain size to obtain high damping. - Abstract: This paper studies the preparation of Fe-15Cr-3Mo-0.5Si alloy by using vacuum induction melting furnace and vacuum annealing furnace, the damping performance of which in different heat treatment states is tested with dynamic mechanical thermal analyzer (DMA). Through microstructure observation with metallographic microscope (OM), grain boundary observation with scanning electron microscopy (SEM), phase structure analysis with X-ray diffraction (XRD) and internal stress of S-B model analysis, the effect law of annealing temperature, types of cooling, holding time and grain sizes on the damping performance of alloy and the related mechanism can be concluded as follows. The annealing temperature and grain sizes have a significant impact on the damping strain amplitude as well as the magnetic and mechanical damping performance of this ferromagnetic alloy. Proper annealing temperature and grain size is the necessary condition to get high damping performance of the alloy. It is not conducive to improvement of the damping performance if the annealing temperature is too high or too low and the grain size is too small or too large. For Fe-15Cr-3Mo-0.5Si alloy, within the range of the low strain amplitude, alloy damping performance does not improve monotonously with the increase of the annealing temperature and grain size. The maximum value appears at the annealing temperature of 1100 °C/1 h with the grain size of about 300 μm. At high annealing temperature of 1100 °C, the damping performance of alloy in the slow cooling furnace is higher than that with air cooling treatment. The extension or shortening of the holding time, to a certain extent

Research on low strain magnetic mechanical hysteresis damping performance of Fe-15Cr-3Mo-0.5Si alloy

Energy Technology Data Exchange (ETDEWEB)

Wang, Hui, E-mail: qinghe5525@163.com; Huang, Huawei; Hong, Xiaofeng; Yin, Changgeng; Huang, Zhaohua; Chen, Le

2015-02-15

Highlights: • Heat treatment system has a great effect on the alloy damping performance. • Damping performance does not improve monotonously with temperature. • Furnace cooling is higher than that of alloy after air cooling. • There is an optimum annealing temperature and grain size to obtain high damping. - Abstract: This paper studies the preparation of Fe-15Cr-3Mo-0.5Si alloy by using vacuum induction melting furnace and vacuum annealing furnace, the damping performance of which in different heat treatment states is tested with dynamic mechanical thermal analyzer (DMA). Through microstructure observation with metallographic microscope (OM), grain boundary observation with scanning electron microscopy (SEM), phase structure analysis with X-ray diffraction (XRD) and internal stress of S-B model analysis, the effect law of annealing temperature, types of cooling, holding time and grain sizes on the damping performance of alloy and the related mechanism can be concluded as follows. The annealing temperature and grain sizes have a significant impact on the damping strain amplitude as well as the magnetic and mechanical damping performance of this ferromagnetic alloy. Proper annealing temperature and grain size is the necessary condition to get high damping performance of the alloy. It is not conducive to improvement of the damping performance if the annealing temperature is too high or too low and the grain size is too small or too large. For Fe-15Cr-3Mo-0.5Si alloy, within the range of the low strain amplitude, alloy damping performance does not improve monotonously with the increase of the annealing temperature and grain size. The maximum value appears at the annealing temperature of 1100 °C/1 h with the grain size of about 300 μm. At high annealing temperature of 1100 °C, the damping performance of alloy in the slow cooling furnace is higher than that with air cooling treatment. The extension or shortening of the holding time, to a certain extent

DEVTA vitamin A schedule, 05/1999 - 04/2004

Indian Academy of Sciences (India)

First page Back Continue Last page Overview Graphics. Dosage: 200,000 IU vitamin A on the. Dosage: 200,000 IU vitamin A on the. 6-monthly mass treatment days. to all then aged 6-72 months. Vit A compliance: miss ~1.6 of 11 doses. Controls: get mean of ~1 non-trial dose.

Magnetic properties and magnetocaloric effect of MnFeP0.5Ge0.5-xSix compounds

International Nuclear Information System (INIS)

Song, L.; Wang, G.F.; Ou, Z.Q.; Haschaolu, O.; Tegus, O.; Brueck, E.; Buschow, K.H.J.

2009-01-01

We have studied the magnetic properties and magnetic-entropy changes of the MnFeP 0.5 Ge 0.5-x Si x compounds with x = 0.1, 0.2, 0.3, 0.4 and 0.45. X-ray diffraction shows that the compounds crystallize in the Fe 2 P-type hexagonal structure. The lattice parameter a and the Curie temperature decreases with increasing x. The maximal magnetic-entropy changes for x = 0.4 and 0.45 derived from the magnetization data are about 6.0 J/kg K and 5.8 J/kg K, respectively, for a field change from 0 to 1.5 T

SPAX - PAX with Super-Pages

Science.gov (United States)

Bößwetter, Daniel

Much has been written about the pros and cons of column-orientation as a means to speed up read-mostly analytic workloads in relational databases. In this paper we try to dissect the primitive mechanisms of a database that help express the coherence of tuples and present a novel way of organizing relational data in order to exploit the advantages of both, the row-oriented and the column-oriented world. As we go, we break with yet another bad habit of databases, namely the equal granularity of reads and writes which leads us to the introduction of consecutive clusters of disk pages called super-pages.

Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the MARION DUFRESNE in the Indian Ocean from 1998-12-05 to 1998-12-27 (NODC Accession 0113574)

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0113574 includes biological, chemical, discrete sample, physical and profile data collected from MARION DUFRESNE in the Indian Ocean from 1998-12-05...

Decomposition of the Google PageRank and Optimal Linking Strategy

NARCIS (Netherlands)

Avrachenkov, Konstatin; Litvak, Nelli

We provide the analysis of the Google PageRank from the perspective of the Markov Chain Theory. First we study the Google PageRank for a Web that can be decomposed into several connected components which do not have any links to each other. We show that in order to determine the Google PageRank for

Enhancing the Ranking of a Web Page in the Ocean of Data

Directory of Open Access Journals (Sweden)

Hitesh KUMAR SHARMA

2013-10-01

Full Text Available In today's world, web is considered as ocean of data and information (like text, videos, multimedia etc. consisting of millions and millions of web pages in which web pages are linked with each other like a tree. It is often argued that, especially considering the dynamic of the internet, too much time has passed since the scientific work on PageRank, as that it still could be the basis for the ranking methods of the Google search engine. There is no doubt that within the past years most likely many changes, adjustments and modifications regarding the ranking methods of Google have taken place, but PageRank was absolutely crucial for Google's success, so that at least the fundamental concept behind PageRank should still be constitutive. This paper describes the components which affects the ranking of the web pages and helps in increasing the popularity of web site. By adapting these factors website developers can increase their site's page rank and within the PageRank concept, considering the rank of a document is given by the rank of those documents which link to it. Their rank again is given by the rank of documents which link to them. The PageRank of a document is always determined recursively by the PageRank of other documents.

Report on the 2005 Particle Accelerator Conference (PAC05)

International Nuclear Information System (INIS)

Kathy F. Rosenbalm

2005-01-01

The 21st Particle Accelerator Conference, PAC05, took place at the Knoxville Convention Center (KCC) from Monday through Friday, May 16-20, 2005. Sponsored by the American Physical Society (APS), the Institute of Electrics and Electronics Engineers (IEEE) with its subdivision of Nuclear and Plasma Sciences Society (NPSS), the conference was hosted by the Oak Ridge National Laboratory (ORNL) Spallation Neutron Source (SNS) Project and Thomas Jefferson National Accelerator Facility (JLab). The conference was chaired by Norbert Holtkamp, and the Local Organizing Committee was made up of staff from the ORNL SNS Project under the chairmanship of Stuart Henderson. The conference welcomed over 1400 delegates from the United States, Europe, Asia, the Middle East, South America and from as far away as Australia. Almost 1400 papers where processed during the conference and will be published on the Joint Accelerator Conferences Website (JACoW) page

Thermal conductivity in Bi0.5Sb1.5Te3+x and the role of dense dislocation arrays at grain boundaries.

Science.gov (United States)

Deng, Rigui; Su, Xianli; Zheng, Zheng; Liu, Wei; Yan, Yonggao; Zhang, Qingjie; Dravid, Vinayak P; Uher, Ctirad; Kanatzidis, Mercouri G; Tang, Xinfeng

2018-06-01

Several prominent mechanisms for reduction in thermal conductivity have been shown in recent years to improve the figure of merit for thermoelectric materials. Such a mechanism is a hierarchical all-length-scale architecturing that recognizes the role of all microstructure elements, from atomic to nano to microscales, in reducing (lattice) thermal conductivity. In this context, there have been recent claims of remarkably low (lattice) thermal conductivity in Bi 0.5 Sb 1.5 Te 3 that are attributed to seemingly ordinary grain boundary dislocation networks. These high densities of dislocation networks in Bi 0.5 Sb 1.5 Te 3 were generated via unconventional materials processing with excess Te (which formed liquid phase, thereby facilitating sintering), followed by spark plasma sintering under pressure to squeeze out the liquid. We reproduced a practically identical microstructure, following practically identical processing strategies, but with noticeably different (higher) thermal conductivity than that claimed before. We show that the resultant microstructure is anisotropic, with notable difference of thermal and charge transport properties across and along two orthonormal directions, analogous to anisotropic crystals. Thus, we believe that grain boundary dislocation networks are not the primary cause of enhanced ZT through reduction in thermal conductivity. Instead, we can reproduce the purported high ZT through a favorable but impractical and incorrect combination of thermal conductivity measured along the pressing direction of anisotropy while charge transport measured in the direction perpendicular to the anisotropic direction. We believe that our work underscores the need for consistency in charge and thermal transport measurements for unified and verifiable measurements of thermoelectric (and related) properties and phenomena.

Automatic Hidden-Web Table Interpretation by Sibling Page Comparison

Science.gov (United States)

Tao, Cui; Embley, David W.

The longstanding problem of automatic table interpretation still illudes us. Its solution would not only be an aid to table processing applications such as large volume table conversion, but would also be an aid in solving related problems such as information extraction and semi-structured data management. In this paper, we offer a conceptual modeling solution for the common special case in which so-called sibling pages are available. The sibling pages we consider are pages on the hidden web, commonly generated from underlying databases. We compare them to identify and connect nonvarying components (category labels) and varying components (data values). We tested our solution using more than 2,000 tables in source pages from three different domains—car advertisements, molecular biology, and geopolitical information. Experimental results show that the system can successfully identify sibling tables, generate structure patterns, interpret tables using the generated patterns, and automatically adjust the structure patterns, if necessary, as it processes a sequence of hidden-web pages. For these activities, the system was able to achieve an overall F-measure of 94.5%.

Multiplex PageRank.

Directory of Open Access Journals (Sweden)

Arda Halu

Full Text Available Many complex systems can be described as multiplex networks in which the same nodes can interact with one another in different layers, thus forming a set of interacting and co-evolving networks. Examples of such multiplex systems are social networks where people are involved in different types of relationships and interact through various forms of communication media. The ranking of nodes in multiplex networks is one of the most pressing and challenging tasks that research on complex networks is currently facing. When pairs of nodes can be connected through multiple links and in multiple layers, the ranking of nodes should necessarily reflect the importance of nodes in one layer as well as their importance in other interdependent layers. In this paper, we draw on the idea of biased random walks to define the Multiplex PageRank centrality measure in which the effects of the interplay between networks on the centrality of nodes are directly taken into account. In particular, depending on the intensity of the interaction between layers, we define the Additive, Multiplicative, Combined, and Neutral versions of Multiplex PageRank, and show how each version reflects the extent to which the importance of a node in one layer affects the importance the node can gain in another layer. We discuss these measures and apply them to an online multiplex social network. Findings indicate that taking the multiplex nature of the network into account helps uncover the emergence of rankings of nodes that differ from the rankings obtained from one single layer. Results provide support in favor of the salience of multiplex centrality measures, like Multiplex PageRank, for assessing the prominence of nodes embedded in multiple interacting networks, and for shedding a new light on structural properties that would otherwise remain undetected if each of the interacting networks were analyzed in isolation.

Multiplex PageRank.

Science.gov (United States)

Halu, Arda; Mondragón, Raúl J; Panzarasa, Pietro; Bianconi, Ginestra

2013-01-01

Many complex systems can be described as multiplex networks in which the same nodes can interact with one another in different layers, thus forming a set of interacting and co-evolving networks. Examples of such multiplex systems are social networks where people are involved in different types of relationships and interact through various forms of communication media. The ranking of nodes in multiplex networks is one of the most pressing and challenging tasks that research on complex networks is currently facing. When pairs of nodes can be connected through multiple links and in multiple layers, the ranking of nodes should necessarily reflect the importance of nodes in one layer as well as their importance in other interdependent layers. In this paper, we draw on the idea of biased random walks to define the Multiplex PageRank centrality measure in which the effects of the interplay between networks on the centrality of nodes are directly taken into account. In particular, depending on the intensity of the interaction between layers, we define the Additive, Multiplicative, Combined, and Neutral versions of Multiplex PageRank, and show how each version reflects the extent to which the importance of a node in one layer affects the importance the node can gain in another layer. We discuss these measures and apply them to an online multiplex social network. Findings indicate that taking the multiplex nature of the network into account helps uncover the emergence of rankings of nodes that differ from the rankings obtained from one single layer. Results provide support in favor of the salience of multiplex centrality measures, like Multiplex PageRank, for assessing the prominence of nodes embedded in multiple interacting networks, and for shedding a new light on structural properties that would otherwise remain undetected if each of the interacting networks were analyzed in isolation.

PageRank, HITS and a unified framework for link analysis

Energy Technology Data Exchange (ETDEWEB)

Ding, Chris; He, Xiaofeng; Husbands, Parry; Zha, Hongyuan; Simon, Horst

2001-10-01

Two popular webpage ranking algorithms are HITS and PageRank. HITS emphasizes mutual reinforcement between authority and hub webpages, while PageRank emphasizes hyperlink weight normalization and web surfing based on random walk models. We systematically generalize/combine these concepts into a unified framework. The ranking framework contains a large algorithm space; HITS and PageRank are two extreme ends in this space. We study several normalized ranking algorithms which are intermediate between HITS and PageRank, and obtain closed-form solutions. We show that, to first order approximation, all ranking algorithms in this framework, including PageRank and HITS, lead to same ranking which is highly correlated with ranking by indegree. These results support the notion that in web resource ranking indegree and outdegree are of fundamental importance. Rankings of webgraphs of different sizes and queries are presented to illustrate our analysis.

Dynamic Web Pages: Performance Impact on Web Servers.

Science.gov (United States)

Kothari, Bhupesh; Claypool, Mark

2001-01-01

Discussion of Web servers and requests for dynamic pages focuses on experimentally measuring and analyzing the performance of the three dynamic Web page generation technologies: CGI, FastCGI, and Servlets. Develops a multivariate linear regression model and predicts Web server performance under some typical dynamic requests. (Author/LRW)

The relative worst order ratio applied to paging

DEFF Research Database (Denmark)

Boyar, Joan; Favrholdt, Lene Monrad; Larsen, Kim Skak

2007-01-01

The relative worst order ratio, a new measure for the quality of on-line algorithms, was recently defined and applied to two bin packing problems. Here, we apply it to the paging problem and obtain the following results: We devise a new deterministic paging algorithm, Retrospective-LRU, and show...

Crystal strucutre of rac-methyl (11aR*,12S*,13R*,15aS*,15bS*-11-oxo-11,11a,12,13-tetrahydro-9H,15bH-13,15a-epoxyisoindolo[1,2-c]pyrrolo[1,2-a][1,4]benzodiazepine-12-carboxylate

Directory of Open Access Journals (Sweden)

Vladimir P. Zaytsev

2014-12-01

Full Text Available The title compound, C21H18N2O4, obtained as a racemate, contains a novel heterocyclic system, viz. isoindolo[1,2-c]pyrrolo[1,2-a][1,4]benzodiazepine. The central diazepane ring has a distorted boat conformation with two phenylene-fused and one methine C atom deviating by 0.931 (1, 0.887 (1 and 0.561 (1 Å, respectively, from the mean plane of the rest of the ring. The γ-lactone ring has an envelope conformation, with the C atom opposite to amide bond deviating by 0.355 (1 Å from its plane. In the crystal, molecules form centrosymmetric dimers through pairs of C—H...O hydrogen bonds.

The effect of texture in (Bi3.5Nd0.5)(Ti2.97Nb0.03)O12 ceramics

International Nuclear Information System (INIS)

Cao, Ziping; Ding, Aili; Zheng, Xinsen; Qiu, Pingsun; Cheng, Wenxiu

2004-01-01

(Bi 3.5 Nd 0.5 ) (Ti 2.97 Nb 0.03 )O 12 ferroelectric ceramics was successfully prepared by a hot-pressing method. XRD diffraction confirms that the samples hold different texture in the sliced planes parallel and perpendicular to the hot-pressing axis, respectively. The anisotropy of ferroelectric, dielectric and piezoelectric properties were all observed in the textured ceramics. Due to the great improvement of ferroelectric and piezoelectric properties, the sample which was sliced along the direction parallel to the hot-pressing axis can be considered as a good candidate of high temperature piezoelectric materials. (copyright 2004 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

#NoMorePage3

DEFF Research Database (Denmark)

Glozer, Sarah; McCarthy, Lauren; Whelan, Glen

2015-01-01

Fourth wave feminists are currently seeking to bring an end to The Sun’s Page 3, a British institution infamous for featuring a topless female model daily. This paper investigates the No More Page 3 (NMP3) campaign through which feminist activists have sought to disrupt the institutionalized...... the institutional work and political corporate social responsibility literatures, we document the manner in which feminist activists have used The Co- operative’s social media site to publicly disrupt entrenched gender norms. Through identifying symbiotic yet competing discourses we discover themes of disruption...... and maintenance amongst and between interlocutors, facilitated by The Co-operative’s arena of citizenship and its notion of suspended discourse. Our analysis contributes to the institutional work literature by demonstrating the mutual need for disruption to ‘meet’ or contest maintenance work in corporate practice...

The mediating role of facebook fan pages.

Science.gov (United States)

Chih, Wen-Hai; Hsu, Li-Chun; Wang, Kai-Yu; Lin, Kuan-Yu

2014-01-01

Using the dual mediation hypothesis, this study investigates the role of interestingness (the power of attracting or holding one's attention) attitude towards the news, in the formation of Facebook Fan Page users' electronic word-of-mouth intentions. A total of 599 Facebook fan page users in Taiwan were recruited and structural equation modeling (SEM) was used to test the research hypotheses. The results show that both perceived news entertainment and informativeness positively influence interestingness attitude towards the news. Interestingness attitude towards the news subsequently influences hedonism and utilitarianism attitudes towards the Fan Page, which then influence eWOM intentions. Interestingness attitude towards the news plays a more important role than hedonism and utilitarianism attitudes in generating electronic word-of-mouth intentions. Based on the findings, the implications and future research suggestions are provided.

Improving the fast discharge performance of high-voltage LiNi{sub 0.5}Mn{sub 1.5}O{sub 4} spinel by Cu{sup 2+}, Al{sup 3+}, Ti{sup 4+} tri-doping

Energy Technology Data Exchange (ETDEWEB)

Deng, Jicheng [Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi' an Jiaotong University, Xi' an (China); Shaanxi Engineering Research Center of Advanced Energy Materials & Devices, Xi' an Jiaotong University, Xi' an (China); Xu, Youlong, E-mail: ylxuxjtu@mail.xjtu.edu.cn [Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi' an Jiaotong University, Xi' an (China); Shaanxi Engineering Research Center of Advanced Energy Materials & Devices, Xi' an Jiaotong University, Xi' an (China); Xiong, Lilong; Li, Liang [Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi' an Jiaotong University, Xi' an (China); Sun, Xiaofei [Shaanxi Engineering Research Center of Advanced Energy Materials & Devices, Xi' an Jiaotong University, Xi' an (China); Zhang, Yuan [Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi' an Jiaotong University, Xi' an (China)

2016-08-25

The sluggish Li{sup +} ion diffusion coefficient at ∼4.7 V (vs. Li{sup +}/Li) greatly impairs the fast discharge performance of LiMn{sub 1.5}Ni{sub 0.5}O{sub 4} cathode material. Herein, a tri-doping strategy is proposed where Cu{sup 2+}, Al{sup 3+}, Ti{sup 4+} ions are partially substituted for Ni{sup 2+} and Mn{sup 4+}. Cu{sup 2+}, Al{sup 3+}, Ti{sup 4+} tri-doping effectively suppresses the Li{sub x}Ni{sub 1−x}O impurity phase, increases the cation mixing in the octahedral B-site in the spinel, enlarges the electronic conductivity, and enhances the structural stability. Most importantly, the Li{sup +} diffusion coefficients show a peculiar boost at 4.7 V by two orders of magnitude after tri-doping. Compared to the pristine LiMn{sub 1.5}Ni{sub 0.5}O{sub 4} (denoted P-LNM), the tri-doped Li[Ni{sub 0.455}Cu{sub 0.03}Al{sub 0.03}Mn{sub 1.455}Ti{sub 0.03}]O{sub 4} (denoted TD-LNM) exhibits much better fast discharge performance, delivering a specific capacity of ∼101 mAh g{sup −1} at 100 C discharge rate. - Graphical abstract: For the LiMn{sub 1.5}Ni{sub 0.5}O{sub 4} cathode material, the sluggish Li{sup +} ion diffusion coefficient around the ∼4.7 V (vs. Li{sup +}/Li) plateau greatly impair its fast discharge performance, which therefore limit its application in electric vehicles. Herein, a tri-doping strategy is proposed where Cu{sup 2+}, Al{sup 3+}, Ti{sup 4+} ions are partially substituted for Ni{sup 2+} and Mn{sup 4+}. After tri-doping, the Li{sup +} diffusion coefficient at 4.7 V (vs. Li{sup +}/Li) is boosted by two orders of magnitude. Compared to the pristine LiMn{sub 1.5}Ni{sub 0.5}O{sub 4} (denoted P-LNM), the tri-doped Li[Ni{sub 0.455}Cu{sub 0.03}Al{sub 0.03}Mn{sub 1.455}Ti{sub 0.03}]O{sub 4} (denoted TD-LNM) exhibits much better fast discharge performance, delivering a capacity of ∼101 mAh·g{sup −1} at 100 C discharge rate. - Highlights: • Cu, Al, Ti Tri-doping improves electronic conductivity of LiNi{sub 0.5}Mn{sub 1.5}O{sub 4}. • Cu

Do financial factors such as author page charges and industry funding impact on the nature of published research in infectious diseases?

Science.gov (United States)

Liyanage, Surabhi S; Raina Macintyre, C

2006-09-01

The question of who pays for research to be conducted and published is an important one as it may result in publication bias. The traditional model of medical publishing has relied on subscriptions for funding. There has been increasing interest in making the results of scientific research freely available. One proposed mechanism is an author-pays system, which shifts cost from subscribers to authors. We investigated the impact of author page charges on the nature and type of published research, and the association of industry funding with types of published research. Four infectious diseases journals with comparable scope were studied-two with page charges and two without. Variables included type of research study, area of research, author demographics, study setting and industry funding. The differences between a subscription model vs. a mixed model (author page charges and subscription charges) were studied. We also investigated changes within the same journal once it had moved from a subscription model to a mixed model. Authors from developing countries were significantly less likely to be published in the mixed-model journals (OR 0.25, 95% CI 0.15-0.41, P funded than any other type of research (OR 12.7, 95% CI 7.0-22.9, P funded research was significantly less likely to be about diseases affecting predominantly the developing world (OR 0.47, 95% CI 0.25-0.89, P funding and certain types of published research. The model of funding of journal publishing can also affect the nature of published research. Shifting publishing costs to authors favours well-funded organizations, industry sponsored research and wealthy countries. Such potential for publication bias must be considered when planning for open access models.

Identify Web-page Content meaning using Knowledge based System for Dual Meaning Words

OpenAIRE

Sinha, Sukanta; Dattagupta, Rana; Mukhopadhyay, Debajyoti

2012-01-01

Meaning of Web-page content plays a big role while produced a search result from a search engine. Most of the cases Web-page meaning stored in title or meta-tag area but those meanings do not always match with Web-page content. To overcome this situation we need to go through the Web-page content to identify the Web-page meaning. In such cases, where Webpage content holds dual meaning words that time it is really difficult to identify the meaning of the Web-page. In this paper, we are introdu...

77 FR 12740 - Trinexapac-ethyl; Pesticide Tolerances

Science.gov (United States)

2012-03-02

... at 12 ppm; cattle (fat, meat, meat byproducts) at 0.05 ppm; goat (fat, meat, meat byproducts) at 0.05 ppm; horse (fat, meat, meat byproducts) at 0.05 ppm and sheep (fat, meat, meat byproducts) at 0.05 ppm..., meat 0.02 Cattle, meat byproducts 0.04 Goat, fat 0.02 [[Page 12746

SDS-Page Seed Storage Protein Profiles in Chili Peppers (Capsicum L.

Directory of Open Access Journals (Sweden)

Owk ANIEL KUMAR

2010-09-01

Full Text Available Seed protein banding patterns (SDS-PAGE were studied from eighteen genotypes of chili pepper (Capsicum L. A total of 21 protein polypeptide bands with molecular weight ranging from 18.6 to 72.0 kD were recorded. Among the genotypes CA18, CA21 and CA27 represented maximum number of protein bands (12. Band no. (11 and (5,12 are exclusive to C. annuum L. and C. frutescens L. genotypes respectively. Average percent similarity was highest (100% between CA2 and CA8 genotypes and the UPGMA dendrogram represented low genetic diversity. The study revealed that considerable intra and inter-specific differences were found in the genotypes. The variability of protein profiles in the genotypes suggested that these selected genotypes can be a good source for crop improvement through hybridization programs.

Purification and characterization of nattokinase from Bacillus subtilis natto B-12.

Science.gov (United States)

Wang, Cong; Du, Ming; Zheng, Dongmei; Kong, Fandong; Zu, Guoren; Feng, Yibing

2009-10-28

Bacillus subtilis natto B-12 was isolated from natto, a traditional fermented soybean food in Japan. A fibrinolytic enzyme (B-12 nattokinase) was purified from the supernatant of B. subtilis natto B-12 culture broth and showed strong fibrinolytic activity. The enzyme was homogenously purified to 56.1-fold, with a recovery of 43.2% of the initial activity. B-12 nattokinase was demonstrated to be homogeneous by SDS-PAGE and was identified as a monomer of 29000 +/- 300 Da in its native state by SDS-PAGE and size exclusion methods. The optimal pH value and temperature were 8.0 and 40 degrees C, respectively. Purified nattokinase showed high thermostability at temperatures from 30 to 50 degrees C and alkaline stability within the range of pH 6.0-9.0. The enzyme activity was activated by Zn(2+) and obviously inhibited by Fe(3+) and Al(3+). This study provides some important information for the effect factors of fibrinolytic activity, the purification methods, and characterization of nattokinase from B. subtilis natto B-12, which enriches the theoretical information of nattokinase for the research and development of nattokinase as a functional additive of food.

Résultats de recherche | Page 12 | CRDI - Centre de recherches ...

International Development Research Centre (IDRC) Digital Library (Canada)

Recherche sur les stratégies de prévention du VIH chez les adolescents. En Afrique, le VIH a des répercussions dévastatrices sur les jeunes. À l'échelle mondiale, les jeunes de 15 à 24 ans représentent près du tiers des nouvelles infections. Projet.

Structure and redox properties of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20 adsorbed on a silica surface. M05 computational study

Directory of Open Access Journals (Sweden)

Liudmyla K. Sviatenko

2016-03-01

Full Text Available The cluster approximation was applied at M05/tzvp level to model adsorption of 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20 on (001 surface of α-quartz. Structures of the obtained CL-20–silica complexes confirm close to parallel orientation of the nitrocompound toward surface. The binding between CL-20 and silica surface was analyzed and bond energies were calculated applying the atoms in molecules (AIM method. Hydrogen bonds were found to significantly contribute in adsorption energy. An attaching of electron leads to significant deviation from coplanarity in complexes and to strengthening of hydrogen bonding. Redox properties of adsorbed CL-20 were compared with those of gas-phase and hydrated species by calculation of electron affinity, ionization potential, reduction Gibbs free energy, oxidation Gibbs free energy, reduction and oxidation potentials. It was shown that adsorbed CL-20 has lower ability to redox transformation as compared with hydrated one.