In vitro safety evaluation and anticlastogenic effect of BacoMind on human lymphocytes.

PubMed

Deb, Dlpanwita Dutta; Kapoor, Preeti; Dighe, R P; Padmaja, R; Anand, M S; D'Souza, P; Deepak, M; Murali, B; Agarwal, Amit

2008-02-01

BacoMind (BM) is a standardized extract of Bacopa monnieri, which belongs to the family Scrophulariaceae and is a creeping annual plant found throughout the Indian subcontinent. It has been used by Ayurvedic medicinal practitioners in India for almost 3000 years and is classified as a medharasayana, a substance which improves memory and intellect. With the widespread traditional use as well as scientific validation of Bacopa monnieri for nootropic activity, a bioactive-rich unique phytochemical composition-BacoMind was developed from B. monnieri for use as a cognition and memory enhancing agent. The present study aimed to investigate the in vitro toxicity of this formulation of BacoMind on human lymphocytes and to rule out its possible contribution to mutagenicity. In the present investigation the active ingredients present in BM were identified and quantified by high performance liquid chromatography (HPLC) and high performance thin-layer chromatography (HPTLC). Antioxidant and anticlastogenic properties of BM were studied in vitro with and without metabolic activation. Doses of BM were chosen on the basis of mitotic index (MI) and cytokinesis-block proliferation index (CBPI). Clastogenicity assays were performed at 31.2 microg/mL, 62.5 microg/mL, and 125 microg/mL, while the Salmonella reverse mutation assay (Ames test) was performed at doses of 61.72, 185.18, 555.55, 1666.67, and 5000.00 microg/plate. HPLC and HPTLC analysis of BM revealed the presence of bacoside A3, bacopaside I, bacopaside II, jujubogenin isomer of bacopasaponin C, bacosine, luteolin, apigenin, bacosine, and beta-sitosterol D glucoside. BM demonstrated significant antioxidant activity. The number of chromosomal aberrations and the frequency of micronuclei induced by BM were not statistically significant up to a dose of 62.5 microg/mL. A subsequent dose of 125 microg/mL prior to metabolic activation induced mild clastogenicity, but it was found to be biologically insignificant as this effect was not seen post metabolic activation. BM also demonstrated a dose-dependent protection against the clastogens used in this study using the above tests for clastogenicity. Maximum protection was observed in presence of metabolic activation. Moreover, BM demonstrated no mutagenic effect on the tested strains, as observed in the Ames test. BM protected human lymphocytes against various clastogens. BM also exhibited high antioxidant activity which might be responsible for the observed protective effects against the clastogens since the used clastogens are known to induce their clastogenic effects via production of oxidative radicals.

Echocardiographic Parameters and Survival in Chagas Heart Disease with Severe Systolic Dysfunction

PubMed Central

Rassi, Daniela do Carmo; Vieira, Marcelo Luiz Campos; Arruda, Ana Lúcia Martins; Hotta, Viviane Tiemi; Furtado, Rogério Gomes; Rassi, Danilo Teixeira; Rassi, Salvador

2014-01-01

Background Echocardiography provides important information on the cardiac evaluation of patients with heart failure. The identification of echocardiographic parameters in severe Chagas heart disease would help implement treatment and assess prognosis. Objective To correlate echocardiographic parameters with the endpoint cardiovascular mortality in patients with ejection fraction < 35%. Methods Study with retrospective analysis of pre-specified echocardiographic parameters prospectively collected from 60 patients included in the Multicenter Randomized Trial of Cell Therapy in Patients with Heart Diseases (Estudo Multicêntrico Randomizado de Terapia Celular em Cardiopatias) - Chagas heart disease arm. The following parameters were collected: left ventricular systolic and diastolic diameters and volumes; ejection fraction; left atrial diameter; left atrial volume; indexed left atrial volume; systolic pulmonary artery pressure; integral of the aortic flow velocity; myocardial performance index; rate of increase of left ventricular pressure; isovolumic relaxation time; E, A, Em, Am and Sm wave velocities; E wave deceleration time; E/A and E/Em ratios; and mitral regurgitation. Results In the mean 24.18-month follow-up, 27 patients died. The mean ejection fraction was 26.6 ± 5.34%. In the multivariate analysis, the parameters ejection fraction (HR = 1.114; p = 0.3704), indexed left atrial volume (HR = 1.033; p < 0.0001) and E/Em ratio (HR = 0.95; p = 0.1261) were excluded. The indexed left atrial volume was an independent predictor in relation to the endpoint, and values > 70.71 mL/m2 were associated with a significant increase in mortality (log rank p < 0.0001). Conclusion The indexed left atrial volume was the only independent predictor of mortality in this population of Chagasic patients with severe systolic dysfunction. PMID:24553982

Echocardiographic parameters and survival in Chagas heart disease with severe systolic dysfunction.

PubMed

Rassi, Daniela do Carmo; Vieira, Marcelo Luiz Campos; Arruda, Ana Lúcia Martins; Hotta, Viviane Tiemi; Furtado, Rogério Gomes; Rassi, Danilo Teixeira; Rassi, Salvador

2014-03-01

Echocardiography provides important information on the cardiac evaluation of patients with heart failure. The identification of echocardiographic parameters in severe Chagas heart disease would help implement treatment and assess prognosis. To correlate echocardiographic parameters with the endpoint cardiovascular mortality in patients with ejection fraction < 35%. Study with retrospective analysis of pre-specified echocardiographic parameters prospectively collected from 60 patients included in the Multicenter Randomized Trial of Cell Therapy in Patients with Heart Diseases (Estudo Multicêntrico Randomizado de Terapia Celular em Cardiopatias) - Chagas heart disease arm. The following parameters were collected: left ventricular systolic and diastolic diameters and volumes; ejection fraction; left atrial diameter; left atrial volume; indexed left atrial volume; systolic pulmonary artery pressure; integral of the aortic flow velocity; myocardial performance index; rate of increase of left ventricular pressure; isovolumic relaxation time; E, A, Em, Am and Sm wave velocities; E wave deceleration time; E/A and E/Em ratios; and mitral regurgitation. In the mean 24.18-month follow-up, 27 patients died. The mean ejection fraction was 26.6 ± 5.34%. In the multivariate analysis, the parameters ejection fraction (HR = 1.114; p = 0.3704), indexed left atrial volume (HR = 1.033; p < 0.0001) and E/Em ratio (HR = 0.95; p = 0.1261) were excluded. The indexed left atrial volume was an independent predictor in relation to the endpoint, and values > 70.71 mL/m2 were associated with a significant increase in mortality (log rank p < 0.0001). The indexed left atrial volume was the only independent predictor of mortality in this population of Chagasic patients with severe systolic dysfunction.

Nuclear Tubulin: A Novel Target for Breast Cancer Chemotherapy

DTIC Science & Technology

2001-05-01

A. Castillo1, R.F. Luduena 3, and I. Meza 2 ’Departamentos de Biologia Celular and 2 Biomedicina Molecular, CINVESTA V del /PN, M6xico, D. F...resistance. J Biol Chem 270: 31269-31275. Hyams JS, Lloyd CW. 1994.-.The role of multiple tubulin isoforms in celular microtubule function. In: Raff E editor

TRANEXAMIC ACID ACTION ON LIVER REGENERATION AFTER PARTIAL HEPATECTOMY: EXPERIMENTAL MODEL IN RATS.

PubMed

Sobral, Felipe Antonio; Daga, Henrique; Rasera, Henrique Nogueira; Pinheiro, Matheus da Rocha; Cella, Igor Furlan; Morais, Igor Henrique; Marques, Luciana de Oliveira; Collaço, Luiz Martins

2016-01-01

Different lesions may affect the liver resulting in harmful stimuli. Some therapeutic procedures to treat those injuries depend on liver regeneration to increase functional capacity of this organ. Evaluate the effects of tranexamic acid on liver regeneration after partial hepatectomy in rats. 40 rats (Rattus norvegicus albinus, Rodentia mammalia) of Wistar-UP lineage were randomly divided into two groups named control (CT) and tranexamic acid (ATX), with 20 rats in each. Both groups were subdivided, according to liver regeneration time of 32 h or seven days after the rats had been operated. The organ regeneration was evaluated through weight and histology, stained with HE and PCNA. The average animal weight of ATX and CT 7 days groups before surgery were 411.2 g and 432.7 g, and 371.3 g and 392.9 g after the regeneration time, respectively. The average number of mitotic cells stained with HE for the ATX and CT 7 days groups were 33.7 and 32.6 mitosis, and 14.5 and 14.9 for the ATX and CT 32 h groups, respectively. When stained with proliferating cell nuclear antigen, the numbers of mitotic cells counted were 849.7 for the ATX 7 days, 301.8 for the CT 7 days groups, 814.2 for the ATX 32 hand 848.1 for the CT 32 h groups. Tranexamic acid was effective in liver regeneration, but in longer period after partial hepatectomy. Muitas são as injúrias que acometem o fígado e levam a estímulo lesivo. Alguns procedimentos terapêuticos para tratamento dessas lesões dependem da regeneração hepática para aumentar a sua capacidade funcional. Avaliar o efeito do ácido tranexâmico na regeneração hepática após hepatectomia parcial em ratos. Foram utilizados 40 ratos (Rattus norvegicus albinus, Rodentia mammalia) convencionais da linhagem Wistar-UP. Foram divididos aleatoriamente em dois grupos de 20: grupo controle (CT) e grupo ácido tranexâmico (ATX). Cada um deles foi divido em dois subgrupos para avaliar a regeneração hepática no tempo de 32 h e 7 dias do pós-operatório. A regeneração do órgão foi avaliada quanto ao peso e histologia, sendo esta última por hematoxilina-eosina e antígeno nuclear de proliferação celular. A média dos pesos dos animais dos grupos ATX 7 dias e CT 7 dias no pré-operatório foram de 411,2 g e 432,7 g, respectivamente, e após a regeneração foram de 371,3 g e 392,9 g. As médias das taxas de mitose coradas por HE dos dois grupos em 7 dias foram de 33,7 e 32,6 mitoses, respectivamente, e de 14,5 e 14,9 mitoses para os grupos ATX e CT 32 h. A contagem de células por antígeno nuclear de proliferação celular mostrou valores de 849,7 para o grupo ATX 7 dias e 301,8 para o CT 7 dias; 814,2 para o grupo ATX 32 h e 848,1 para o CT 32 h. O ácido tranexâmico mostrou-se efetivo na regeneração hepática somente em período mais longo de observação após hepatectomia parcial.

Comparative study of abdominal cavity temporary closure techniques for damage control.

PubMed

Ribeiro, Marcelo A F; Barros, Emily Alves; Carvalho, Sabrina Marques DE; Nascimento, Vinicius Pereira; Cruvinel, José; Fonseca, Alexandre Zanchenko

2016-01-01

The damage control surgery, with emphasis on laparostomy, usually results in shrinkage of the aponeurosis and loss of the ability to close the abdominal wall, leading to the formation of ventral incisional hernias. Currently, various techniques offer greater chances of closing the abdominal cavity with less tension. Thus, this study aims to evaluate three temporary closure techniques of the abdominal cavity: the Vacuum-Assisted Closure Therapy - VAC, the Bogotá Bag and the Vacuum-pack. We conducted a systematic review of the literature, selecting 28 articles published in the last 20 years. The techniques of the bag Bogotá and Vacuum-pack had the advantage of easy access to the material in most centers and low cost, contrary to VAC, which, besides presenting high cost, is not available in most hospitals. On the other hand, the VAC technique was more effective in reducing stress at the edges of lesions, removing stagnant fluids and waste, in addition to acting at the cellular level by increasing proliferation and cell division rates, and showed the highest rates of primary closure of the abdominal cavity. RESUMO A cirurgia de controle de danos, com ênfase em peritoneostomia, geralmente resulta em retração da aponeurose e perda da capacidade de fechar a parede abdominal, levando à formação de hérnias ventrais incisionais. Atualmente, várias técnicas oferecem maiores chances de fechamento da cavidade abdominal, com menor tensão. Deste modo, este estudo tem por objetivo avaliar três técnicas de fechamento temporário da cavidade abdominal: fechamento a vácuo (Vacuum-Assisted Closure Therapy - VAC), Bolsa de Bogotá e Vacuum-pack. Realizou-se uma revisão sistemática da literatura com seleção de 28 artigos publicados nos últimos 20 anos. As técnicas de Bolsa de Bogotá e Vacuum-pack tiveram como vantagem o acesso fácil ao material, na maioria dos centros, e baixo custo, ao contrário do que se observa na terapia a vácuo, VAC, que além de apresentar alto custo, não está disponível em grande parte dos hospitais. A técnica VAC, por outro lado, foi mais eficaz na redução da tensão nas bordas das lesões, ao remover fluidos estagnados e detritos, além de exercer ação a nível celular, aumentando as taxas de proliferação e divisão celular, e apresentou as maiores taxas de fechamento primário da cavidade abdominal.

Hematological, biochemical, and histopathological impacts of barium chloride and barium carbonate accumulation in soft tissues of male Sprague-Dawley rats.

PubMed

Mohammed, Amany Tharwat; Ismail, Hager Tarek H

2017-12-01

The present study was designed to investigate the hematotoxicity, sero-biochemical and histological changes due to the accumulation of BaCl 2 and BaCO 3 , the most important barium salts in our daily lives, in different soft tissues including the liver, kidney, heart, and spleen of adult rats after an oral exposure for 30 consecutive days, and to explain the different mechanisms by which this metal can exert these impacts. For this purpose, adult male rats were divided into three main groups of 15 animals each: group I, serving as controls, group II, receiving BaCl 2 orally in a dose of 179 mg barium/kg b.wt, and group III, receiving BaCO 3 orally in a dose of 418 mg barium/kg b.wt. for 30 consecutive days. Obviously, normocytic normochromic anemia was evident in both barium groups. Serum biochemical analysis revealed significant declines in glutathione peroxidase, catalase, superoxide dismutase, and urea with significant elevations in malondialdehyde, lactate dehydrogenase, and creatine kinase levels. Hyperphosphatemia, hypokalemia, hypocalcemia, and hypochloremia were also evident in both barium groups. Besides, residual analysis of both barium salts in different body organs revealed significantly abundant barium residues in the liver, spleen, heart, and kidney, respectively in both barium salts groups. Moreover, splenic tissue showed hemosiderosis, peritubular congestion, and necrotic glomeruli with intratubular hemorrhage. Sever subepicardial congestion with intramuscular edema was evident in the heart. In conclusion, BaCl 2 and BaCO 3 were able to deliver mortalities, antioxidant enzymes exhaustion, and a sort of normocytic normochromic anemia, as well as marked disturbances in cardiac, hepatic, and renal functions due to the accumulation of these two salts in the soft tissues. Therefore, these results demonstrate the unrecognized toxicity of those two barium salts due to their accumulation in various soft tissues of the body and so, this needs to reconsider about barium exposure.

International Conference on Partitioning in Aqueous Two-Phase Systems: Advances in Separation in Biochenistry, Cell Biology and Biotechnology (7th) Held in New Orleans, Louisiana on 2-7 June 1991.

DTIC Science & Technology

1991-06-27

de Bioquimica y Biologia Molecular y Celular . Facultad de Veterinaria. Universidad de Zaragoza. SPAIN Homogenization of brain tissue results in nerve...and M. J. L6pez-Pirez. Departamento de Bioquimica y Biologia Molecular y Celular . Facultad de Veterinaria. Universidad de Zaragoza. SPAIN Previous

Cellular Effects of Endotoxin in Vitro: Mobility of Endotoxin in the Plasma Membrane of Hepatocytes and Neuroblastoma Cells

DTIC Science & Technology

1985-01-01

initiates ain.otoxin eqxpocar In the pteet work. we have celular perturbations. remains to be determined. I In vivo stdahawe shown that the liver is an...1977) Scismos 195. 307-309 tomn at the Celular LAve (Majde. JA.. ad.). Mp 81-95. 30 SdchminW. J., SebchaW. Y- Casacasas. P. Wminsa Alan I. Liss. New

Biofunctionality and immunocompatibility of starch-based biomaterials

NASA Astrophysics Data System (ADS)

Marques, Alexandra Margarida Pinto

A procura de novos biomateriais que desempenhem funcoes especificas sem, no entanto, desencadearem respostas negativas nos hospedeiros constitui um desafio permanente e actual nesta area. Biomateriais degradaveis foram uma das solucoes propostas e actualmente em aplicacao mas, embora possuam vantagens inegaveis, tambem apresentam alguns problemas nomeadamente no que diz respeito aos seus produtos de degradacao e respectivos efeitos negativos consequentes. Outros biomateriais, entre os quais polimeros de origem natural, foram propostos considerando que os seus produtos de degradacao poderao ser incorporados nas vias metabolicas normais evitando efeitos secundarios no hospedeiro. Ate ao momento, e apesar de todos os esforcos e do grande numero de dispositivos biomedicos desenvolvidos, o biomaterial ideal para uma aplicacao especifica ainda nao foi encontrado. Estudos com polimeros biodegradaveis a base de amido demonstraram que estes materiais possuem propriedades promissoras abrindo novas perspectivas para a sua possivel aplicacao numa variedade de aplicacoes biomedicas. Assim, de modo a demonstrar que estes materiais tem de facto potencial para serem utilizados em, por exemplo, substituicao ossea, sistemas de libertacao controlada, cimentos osseos e engenharia de tecidos, seria imperativo avaliar com maior profundidade a resposta biologica desencadeada pelos mesmos. Para tal foi delineado um plano de trabalhos com tres objectivos principais: i) avaliar a citocompatibilidade dos polimeros e compositos a base de amido com monitorizacao da citotoxicidade e analise da adesao e proliferacao celulares nas suas superficies. Foi dada particular atencao a osteoblastos considerando uma possivel aplicacao ortopedica para estes materiais; ii) estabelecer modelos in vitro para analisar e prever, tanto quanto possivel, uma situacao real de resposta inflamatoria; iii) validar os resultados in vitro com um modelo in vivo ja estabelecido em outros trabalhos de analise da resposta inflamatoria a biomateriais. Em resumo, os estudos de citocompatibilidade e imunocompatibilidade demonstraram que os polimeros e compositos a base de milho sao biomateriais promissores. Em comparacao com os biomateriais degradaveis actualmente em uso, possuem propriedades capazes de induzir um comportamento semelhante, ou mesmo melhor, em termos de citotoxicidade. Estes dados foram reconfirmados com a adesao e proliferacao de celulas do tipo osteoblastos na superficie de alguns dos materiais a base de amido, que demonstraram ser comparaveis as observadas no PLLA, evidenciando a possibilidade de usar esses materiais em aplicacoes ortopedicas. As conclusoes retiradas dos estudos in vitro e in vivo de imunocompatibilidade reforcam as observacoes das experiencias de citocompatibilidade e em conjunto, evidenciam a possibilidade de utilizacao dos biomateriais a base de amido, com fraca capacidade de desencadear uma reaccao inflamatoria, em aplicacoes biomedicas. (Abstract shortened by ProQuest.).

Method of Preparing Monoclinic BaO.Al2O3.2SiO2

DTIC Science & Technology

Monoclinic celsian (BaO.Al2O3.2SiO2) is produced by heating a stoichiometric, powder mixture of BaCO3 (or BaC2O4), Al2O3, and SiO2 (preferably SiO2 gel) with monoclinic celsian seeds at from 1250 deg C to 1500 deg C.

Alterações Induzidas Pelo Exercício no Número, Função e Morfologia de Monócitos de Ratos

PubMed Central

GUERESCHI, MARCIA G.; PRESTES, JONATO; DONATTO, FELIPE F.; DIAS, RODRIGO; FROLLINI, ANELENA B.; FERREIRA, CLÍLTON KO.; CAVAGLIERI, CLAUDIA R.; PALANCH, ADRIANNE C.

2008-01-01

O propósito desse estudo foi verificar as alterações histofisiológicas em monócitos e macrófagos induzidas por curtos períodos de exercícios. Ratos Wistar (idade = 2 meses, peso corporal = 200g) foram divididos em sete grupos (n=6 cada): controle sedentário (C), grupos exercitados (natação) na intensidade leve por 5 (5L), 10 (10L) e 15 minutos (15L), e grupos exercitados em intensidade moderada por 5 (5M), 10 (10M) e 15 minutes (15M). Na intensidade moderada os animais carregaram uma carga de 5% do peso corporal dos mesmos em seus respectivos dorsos. Os monócitos sangüíneos foram avaliados quanto à quantidade e morfologia e os macrófagos peritoneais foram analisados quanto à quantidade e atividade fagocitária. Os dados foram analisados usando ANOVA e Tukey’s post hoc test (p ≤ 0,05). Os grupos de intensidade leve e 5M apresentaram aumento nos níveis dos monócitos quando comparados com o controle. Foi observado aumento na área celular dos monócitos para os grupos 5L, 10L, 5M e 10M; a área nuclear aumentou para os grupos 10L, 5M e 10M em comparação com o controle. Houve aumento nos macrófagos peritoneais para os grupos 15L, 10M, 15M e diminuição no grupo 5M. A capacidade fagocitária dos macrófagos aumentou nos grupos de intensidade leve e para o grupo 10M. O exercício realizado por curtos períodos modulou o número e função dos macrófagos, assim como o número e morfologia dos monócitos, sendo tais alterações dependentes da intensidade. A soma das respostas agudas observadas nesse estudo pode exercer um efeito protetor contra doenças, podendo ser utilizada para a melhora da saúde e qualidade de vida.

Sulfuric Acid Regeneration Waste Disposal Technology.

DTIC Science & Technology

1986-11-01

or poorer correlations of acid load with SAR production. The National Pollutant Discharge Elimination System (NPDES) permit requires one daily 24 hour...systems; and * essentially eliminates [(NH4 )2So4 ] disposal problem. The chief concerns for this process are: " high chemical cost of BaCO 3... biofiltration and fluorination prior to being discharged to a stream which feeds into the Allegheny River. PLANT 6: Sulfuric acid plant in New Jersey

Fluorite Ce0.8Sm0.2O2- δ porous layer coating to enhance the oxygen permeation behavior of a BaCo0.7Fe0.2Nb0.1O3- δ mixed conductor

NASA Astrophysics Data System (ADS)

Wang, Tai-he; Song, Wei-jia; Li, Rong; Zhen, Qiang

2016-06-01

Fluorite Ce0.8Sm0.2O2- δ (SDC) nanopowder with a crystallite size of 15 nm was synthesized by a co-precipitation method. An SDC porous layer was coated onto a BaCo0.7Fe0.2Nb0.1O3- δ (BCFN) mixed conductor to improve its oxygen transport behavior. The results show that the SDC-coated BCFN membrane exhibits a remarkably higher oxygen permeation flux ({J_{{O_2}}}) than the uncoated BCFN in the partial oxidation of coke oven gas (COG). The maximum {J_{{O_2}}} value of the SDC-coated BCFN is 18.28 mL·min-1·cm-2 under a COG/air flux of 177 mL·min-1/353 mL·min-1 at 875°C when the thickness of the BCFN membrane is 1 mm; this {J_{{O_2}}} value is 23% higher than that of the uncoated BCFN membrane. This enhancement is likely because of the higher oxygen ionic conductivity of SDC, which supplies oxygen vacancies and accelerates oxygen exchange on the membrane/coating layer/gas three-phase boundary.

Manufacture of barium hexaferrite (BaO3.98Fe2O3) from iron oxide waste of grinding process by using calcination process

NASA Astrophysics Data System (ADS)

Idayanti, N.; Dedi; Kristiantoro, T.; Mulyadi, D.; Sudrajat, N.; Alam, G. F. N.

2018-03-01

The utilization of iron oxide waste of grinding process as raw materials for making barium hexaferrite has been completed by powder metallurgy method. The iron oxide waste was purified by roasting at 800 °C temperature for 3 hours. The method used varying calcination temperature at 1000, 1100, 1200, and 1250 °C for 3 hours. The starting iron oxide waste (Fe2O3) and barium carbonate (BaCO3) were prepared by mol ratio of Fe2O3:BaCO3 from the formula BaO3.98Fe2O3. Some additives such as calcium oxide (CaO), silicon dioxide (SiO2), and polyvinyl alcohol (PVA) were added after calcination process. The samples were formed at the pressure of 2 ton/cm2 and sintered at the temperature of 1250 °C for 1 hour. The formation of barium hexaferrite compounds after calcination is determined by X-Ray diffraction. The magnetic properties were observed by Permagraph-Magnet Physik with the optimum characteristic at calcination temperature of 1250 °C with the induction of remanence (Br) = 1.38 kG, coercivity (HcJ) = 4.533 kOe, product energy maximum (BHmax) = 1.086 MGOe, and density = 4.33 g/cm3.

Reactivity of a Thick BaO Film Supported on Pt(111): Adsorption and Reaction of NO2, H2O and CO2

DOE Office of Scientific and Technical Information (OSTI.GOV)

Mudiyanselage, Kumudu; Yi, Cheol-Woo W.; Szanyi, Janos

2009-09-15

Reactions of NO2, H2O, and CO2 with a thick (> 20 MLE) BaO film supported on Pt(111) were studied with temperature programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS). NO2 reacts with a thick BaO to form surface nitrite-nitrate ion pairs at 300 K, while only nitrates form at 600 K. In the thermal decomposition process of nitrite–nitrate ion pairs, first nitrites decompose and desorb as NO. Then nitrates decompose in two steps : at lower temperature with the release of NO2 and at higher temperature, nitrates dissociate to NO + O2. The thick BaO layer converts completely to Ba(OH)2more » following the adsorption of H2O at 300 K. Dehydration/dehydroxylation of this hydroxide layer can be fully achieved by annealing to 550 K. CO2 also reacts with BaO to form BaCO3 that completely decomposes to regenerate BaO upon annealing to 825 K. However, the thick BaO film cannot be converted completely to Ba(NOx)2 or BaCO3 under the experimental conditions employed in this study.« less

International Conference on Partitioning in Aqueous Two-Phase Systems in Biochemistry Cell Biology and Biotechnology (7th) Held in New Orleans, Louisiana on June 2-7, 1991.

DTIC Science & Technology

1991-11-30

and Virus Like Particles (VLPs, cloned in yeast presently being used for the development of an AIDS vaccine). This paper will describe partition...PARTITIONING OF CEREBROCORTICAL SYNAPTOSOMES M. J. L6pez.P6rez Departamento de Bioquimica y Biologia Molecular y Celular . Facultad de Veterinaria...Pascual, T. Muifio-Blanco, J. A. Cebriin-Pdrez and M. J. L6pez-Pdrez. Departamento de Bioqufmica y Biologia Molecular y Celular . Facultad de

Effects of Different Barium Compounds on the Corrosion Resistance of Andalusite-Based Low-Cement Castables in Contact with Molten Al-Alloy

NASA Astrophysics Data System (ADS)

Adabifiroozjaei, Esmaeil; Koshy, Pramod; Rastkerdar, Ebad

2011-08-01

An experimental study was conducted to investigate the interfacial phenomena between an Al alloy and andalusite low-cement castables (LCCs) containing fixed contents of barium compounds (BaO, BaSO4, and BaCO3) at 1123 K and 1433 K (850 °C and 1160 °C) using the Alcoa cup test. Interfacial reaction products and phases formed during heat treatment of the refractory samples were characterized using scanning electron microscopy (SEM) coupled with energy dispersive spectrometry (EDS) and X-ray diffraction analysis (XRD). The addition of both BaO and BaSO4 led to a significant reduction of alloy penetration into the refractory. Hexa-celsian formation was observed in both these refractories, which drastically increased their corrosion resistance. Barite decomposition was observed at 1373 K (1100 °C) in the presence of alumina and silica, which was the precursor for hexa-celsian formation. Barium silicates were formed in all samples containing additives; however, this did not have any major influence on the corrosion resistance. Solidified eutectics of BaSi2 and α-BaAl2Si2 formed in all these samples, which acted as an interfacial barrier that prevented additional molten aluminum penetration; however, the positive effect of intermetallic formation was offset by glassy phase formation in samples containing BaCO3 as the additive.

The effects of preparation conditions for a BaNbO2 N photocatalyst on its physical properties.

PubMed

Hisatomi, Takashi; Katayama, Chisato; Teramura, Kentaro; Takata, Tsuyoshi; Moriya, Yosuke; Minegishi, Tsutomu; Katayama, Masao; Nishiyama, Hiroshi; Yamada, Taro; Domen, Kazunari

2014-07-01

BaNbO2 N is a semiconductor photocatalyst active for water oxidation under visible-light irradiation up to λ=740 nm. It is important to understand the nitridation processes of precursor materials to form BaNbO2 N to tune the physical properties and improve the photocatalytic activity. Comprehensive experiments and analyses of temperatures, durations, ammonia flow rates, and barium/niobium ratios in the precursor during the nitridation process reveals that faster ammonia flow rates and higher barium/niobium ratios in the precursors help to suppress reduction of pentavalent niobium ions in the nitridation products and that the use of a precursor prepared by a soft-chemistry route allows the production of BaNbO2 N at lower temperatures in shorter times than the use of physical mixtures of BaCO3 and Nb2 O5 because the niobium species is dispersed among the barium species. BaNbO2 N prepared by the soft-chemistry route exhibits comparatively higher activity than that prepared from physical mixtures of BaCO3 and Nb2 O5 , probably because of lower nitridation temperatures, which suppress excessive dissociation of ammonia, and thereby reduce pentavalent niobium ions, and intimate interaction of niobium and barium sources, which lowers the densities of mid-gap states associated with defects. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

A Scientific Basis for an Alternate Cathode Architecture.

DTIC Science & Technology

1988-02-01

working it below the annealing temperature. VO Page 11 4K5 However, when the filament operated above the annealing temperature, it recrystallized with...an impregnant ratio of 5 A moles of BaCO3: 2 moles A1203 . This represented the lowest eutectic point in the binary phase diagram. This cathode was...matrix. In its original composition, cathode impregnants in the 1 ratio of 5BaO:2A1203 were chosen because this is the lowest melting point eutectic not

Feasibility of Biomonitoring of Exposure to Permethrin Through Analysis of Long-Lived (Metabolite) Adducts to Proteins

DTIC Science & Technology

2009-04-01

BaCO3 N2 koeler Ba(OH)2 opl. ventiel Figure 2. Manifold for preparation of [14C] 3-PBA. Preparation of the Grignard reagent To flask E...The entire system was kept under nitrogen. The preparation of the Grignard reagent was initiated by applying heat using a heat gun. When the reaction...all reagents were present in the manifold prior to the beginning of the experiment. 24 A B E D C drukmetervacuumH2SO4

Advantages of barium peroxide in the powder synthesis of perovskite superconductors

NASA Technical Reports Server (NTRS)

Hepp, A. F.; Gaier, J. R.; Philipp, W. H.; Warner, J. D.; Garlick, R. G.; Pouch, J. J.

1988-01-01

This paper compares reaction chemistry, material processing, and material characteristics for the solid state reaction using BaCO3 or BaO2 in the synthesis of perovskite superconductors. Results are presented for weight loss and X-ray diffraction, sample morphology and homogeneity as monitored by SEM and EDS, and the superconductivity critical temperature and ac susceptibility. Greater mass density, increased sample homogeneity, lower resistance, and improved reproducibility for material are found when BaO32 is used.

Short-range order in the quantum XXZ honeycomb lattice material BaCo2(PO4)2

NASA Astrophysics Data System (ADS)

Nair, Harikrishnan S.; Brown, J. M.; Coldren, E.; Hester, G.; Gelfand, M. P.; Podlesnyak, A.; Huang, Q.; Ross, K. A.

2018-04-01

We present observations of highly frustrated quasi-two-dimensional (2D) magnetic correlations in the honeycomb lattice layers of the Seff =1 /2 compound γ -BaCo2(PO4)2 (γ -BCPO). Specific heat shows a broad peak comprised of two weak kink features at TN 1˜6 K and TN 2˜3.5 K, the relative weights of which can be modified by sample annealing. Neutron powder diffraction measurements reveal short range quasi-2D order that is established below TN 1 and TN 2, at which two separate, incompatible, short range magnetic orders onset: commensurate antiferromagnetic correlations with correlation length ξc=60 ±2 Å (TN 1) and in quasi-2D helical domains with ξh=350 ±11 Å (TN 2). The ac magnetic susceptibility response lacks frequency dependence, ruling out spin freezing. Inelastic neutron scattering data on γ -BCPO is compared with linear spin wave theory, and two separate parameter regions of the XXZ J1-J2-J3 model with ferromagnetic nearest-neighbor exchange J1 are favored, both near regions of high classical degeneracy. High energy coherent excitations (˜10 meV) persist up to at least 40 K, suggesting strong in-plane correlations persist above TN. These data show that γ -BCPO is a rare highly frustrated, quasi-2D Seff =1 /2 honeycomb lattice material which resists long range magnetic order and spin freezing.

Good practices in collecting umbilical cord and placental blood.

PubMed

Lopes, Lauren Auer; Bernardino, Elizabeth; Crozeta, Karla; Guimarães, Paulo Ricardo Bittencourt

2016-08-18

to identify the factors related to the quality of umbilical cord and placental blood specimens, and define best practices for their collection in a government bank of umbilical cord and placental blood. this was a descriptive study, quantitative approach, performed at a government umbilical cord and placental blood bank, in two steps: 1) verification of the obstetric, neonatal and operational factors, using a specific tool for gathering data as non-participant observers; 2) definition of best practices by grouping non-conformities observed before, during and after blood collection. The data was analyzed using descriptive statistics and the following statistical software: Statistica(r) and R(r). while there was a correlation with obstetrical and neonatal factors, there was a larger correlation with operational factors, resulting in the need to adjust the professional practices of the nursing staff and obstetrical team involved in collecting this type of blood. Based on these non-conformities we defined best practices for nurses before, during and after blood collection. the best practices defined in this study are an important management tool for the work of nurses in obtaining blood specimens of high cell quality. identificar fatores relacionados à qualidade das amostras do sangue de cordão umbilical e placentário e definir boas práticas para sua coleta em um banco público de sangue de cordão umbilical e placentário. pesquisa descritiva, abordagem quantitativa, realizada em um banco público de sangue de cordão umbilical e placentário, desenvolvida em duas etapas: 1) verificação dos fatores obstétricos, neonatais e operacionais, obtidos por coleta em instrumento próprio e observação não participante; 2) definição das boas práticas, por meio do agrupamento de não-conformidades observadas antes, durante e após a coleta do sangue. Os dados foram analisados por meio da estatística descritiva, utilizando-se dos softwares Statistica(r) e R(r). houve correlação da influência dos fatores obstétricos e neonatais em menor escala quando comparados aos fatores operacionais, resultando na necessidade de readequar a prática profissional do enfermeiro e da equipe obstétrica envolvida no processo da coleta desse tipo de sangue. A partir das não-conformidades foram definidas boas práticas para o enfermeiro antes, durante e após a coleta. as boas práticas definidas neste estudo são importante ferramenta gerencial para o trabalho do enfermeiro na obtenção de amostras de sangue com alta qualidade celular. identificar factores relacionados a la calidad de las muestras de la sangre del cordón umbilical y de la placenta y definir buenas prácticas para su recolección en un banco público de sangre del cordón umbilical y de la placenta. investigación - descriptiva, abordaje cuantitativo, realizada en un banco público de sangre - del cordón umbilical y de la placenta, desarrollada en dos etapas: 1) verificación de los factores obstétricos, neonatales y operacionales, obtenidos por recolección con instrumento propio y observación no participante; 2) definición de las buenas prácticas, por medio del agrupamiento de no-conformidades observadas antes, durante y después de la recolección de la sangre. Los datos fueron analizados por medio de la estadística descriptiva, utilizando los softwares Statistica(r) y R(r). hubo correlación de la influencia de los factores obstétricos y neonatales en menor escala cuando comparados a los factores operacionales, resultando en la necesidad de readecuar la práctica profesional del enfermero y del equipo obstétrico que participa en el proceso de la recolección de ese tipo de sangre. A partir de las no-conformidades fueron definidas buenas prácticas para el enfermero antes, durante y después de la recolección. las buenas prácticas definidas en este estudio son importante herramienta administrativa para el trabajo del enfermero en la obtención de muestras de sangre con alta calidad celular.

Hard metal lung disease: a case series.

PubMed

Mizutani, Rafael Futoshi; Terra-Filho, Mário; Lima, Evelise; Freitas, Carolina Salim Gonçalves; Chate, Rodrigo Caruso; Kairalla, Ronaldo Adib; Carvalho-Oliveira, Regiani; Santos, Ubiratan Paula

2016-01-01

To describe diagnostic and treatment aspects of hard metal lung disease (HMLD) and to review the current literature on the topic. This was a retrospective study based on the medical records of patients treated at the Occupational Respiratory Diseases Clinic of the Instituto do Coração, in the city of São Paulo, Brazil, between 2010 and 2013. Of 320 patients treated during the study period, 5 (1.56%) were diagnosed with HMLD. All of those 5 patients were male (mean age, 42.0 ± 13.6 years; mean duration of exposure to hard metals, 11.4 ± 8.0 years). Occupational histories were taken, after which the patients underwent clinical evaluation, chest HRCT, pulmonary function tests, bronchoscopy, BAL, and lung biopsy. Restrictive lung disease was found in all subjects. The most common chest HRCT finding was ground glass opacities (in 80%). In 4 patients, BALF revealed multinucleated giant cells. In 3 patients, lung biopsy revealed giant cell interstitial pneumonia. One patient was diagnosed with desquamative interstitial pneumonia associated with cellular bronchiolitis, and another was diagnosed with a hypersensitivity pneumonitis pattern. All patients were withdrawn from exposure and treated with corticosteroid. Clinical improvement occurred in 2 patients, whereas the disease progressed in 3. Although HMLD is a rare entity, it should always be included in the differential diagnosis of respiratory dysfunction in workers with a high occupational risk of exposure to hard metal particles. A relevant history (clinical and occupational) accompanied by chest HRCT and BAL findings suggestive of the disease might be sufficient for the diagnosis. Descrever aspectos relacionados ao diagnóstico e tratamento de pacientes com doença pulmonar por metal duro (DPMD) e realizar uma revisão da literatura. Estudo retrospectivo dos prontuários médicos de pacientes atendidos no Serviço de Doenças Respiratórias Ocupacionais do Instituto do Coração, localizado na cidade de São Paulo, entre 2010 e 2013. Entre 320 pacientes atendidos no período do estudo, 5 (1,56%) foram diagnosticados com DPMD. Todos os pacientes eram do sexo masculino, com média de idade de 42,0 ± 13,6 anos e média de tempo de exposição a metal duro de 11,4 ± 8,0 anos. Os pacientes foram submetidos a avaliação clinica, história ocupacional, TCAR de tórax, prova de função pulmonar, broncoscopia com LBA e biópsia pulmonar. Todos apresentaram distúrbio ventilatório restritivo. O achado de imagem à TCAR de tórax mais frequente foi de opacidades em vidro fosco (em 80%). Em 4 pacientes, o LBA revelou presença de células gigantes multinucleadas. Em 3, foi diagnosticada pneumonia intersticial por células gigantes na biópsia pulmonar. Houve o diagnóstico de pneumonia intersticial descamativa associada à bronquiolite celular em 1 paciente e de pneumonite de hipersensibilidade em 1. Todos foram afastados da exposição e tratados com corticoide. Houve melhora em 2 pacientes e progressão da doença em 3. Apesar de ser uma entidade rara, a DPMD deve ser sempre considerada em trabalhadores com risco ocupacional elevado de exposição a metais duros. A história clínica e ocupacional associada a achados em TCAR de tórax e LBA sugestivos da doença podem ser suficientes para o diagnóstico.

Field survey of the 1994 Mindoro Island, Philippines tsunami

NASA Astrophysics Data System (ADS)

Imamura, Fumihiko; Synolakis, Costas E.; Gica, Edison; Titov, Vasily; Listanco, Eddie; Lee, Ho Jun

1995-09-01

This is a report of the field survey of the November 15, 1994 Mindoro Island, Philippines, tsunami generated by an earthquake ( M=7.0) with a strike-slip motion. We will report runup heights from 54 locations on Luzon, Mindoro and other smaller islands in the Cape Verde passage between Mindoro and Luzon. Most of the damage was concentrated along the northern coast of Mindoro. Runup height distribution ranged 3 4 m at the most severely damaged areas and 2 4 in neighboring areas. The tsunami-affected area was limited to within 10 km of the epicenter. The largest recorded runup value of 7.3 m was measured on the southwestern coast of Baco Island while a runup of 6.1 m was detected on its northern coastline. The earthquake and tsunami killed 62 people, injured 248 and destroyed 800 houses. As observed in other recent tsunami disasters, most of the casualties were children. Nearly all eyewitnesses interviewed described the first wave as a leading-depression wave. Eyewitnesses reported that the main direction of tsunami propagation was SW in Subaang Bay, SE in Wawa and Calapan, NE on Baco Island and N on Verde Island, suggesting that the tsunami source area was in the southern Pass of Verde Island and that the wave propagated rapidly in all directions. The fault plane extended offshore to the N of Mindoro Island, with its rupture originating S of Verde Island and propagating almost directly south to the inland of Mindoro, thereby accounting for the relatively limited damage area observed on the N of Mindoro.

Relationship between fabrication method and chemical stability of Ni-BaZr0.8Y0.2O3-δ membrane

NASA Astrophysics Data System (ADS)

Fang, Shumin; Wang, Siwei; Brinkman, Kyle S.; Su, Qing; Wang, Haiyan; Chen, Fanglin

2015-03-01

NiO effectively promotes the sintering of highly refractory Y-doped BaZrO3 (BZY) through the formation of BaY2NiO5, providing a simple and cost-effective method for the fabrication of dense BZY electrolyte and Ni-BZY hydrogen separation membrane at ∼1400 °C. Unfortunately, insulating BaCO3 and Y2O3 phases formed on the surface of BZY and Ni-BZY prepared by solid state reaction method with NiO after annealing in wet CO2. Ni-BZY membranes prepared from different methods suffered different degree of performance loss in wet H2 at 900 °C. The chemical instability of Ni-BZY is attributed to the formation of a secondary phase (BaY2O4) generated from the reduction of BaY2NiO5 in H2 during the sintering process. Both BaY2O4 and BaY2NiO5 react with H2O, and CO2 at elevated temperatures, generating insulating Ba(OH)2 and BaCO3 phases, respectively. The less BaY2O4 is formed in the fabrication process, the better chemical stability the Ni-BZY membranes possess. Therefore, a new Ni-BZY membrane is prepared through a judicial combination of BZY powders prepared from combined EDTA-citric and solid state reaction methods, and demonstrates exceptional chemical stability in H2O and CO2, enabling stable and even improved hydrogen flux in wet 50% CO2 at 900 °C.

Infusion pumps and red blood cell damage in transfusion therapy: an integrative revision of the academic literature.

PubMed

Wilson, Ana Maria Miranda Martins; Peterlini, Maria Angélica Sorgini; Pedreira, Mavilde da Luz Gonçalves

2016-08-15

to obtain information from scientific literature concerning infusion pumps used in administering erythrocyte (red blood cells) and to evaluate the implications in the practical use of this equipment by nurses when conducting transfusions. an integrative revision of the following scientific databases: Pubmed/Medline, Scopus, the Virtual Library for Health, SciELO, Web of Science and Cochrane. The following descriptors were used: "infusion pumps", "blood transfusion", "transfused erythrocyte" and "hemolyis". There were no restrictions on the scope of the initial data and it was finalized in December 2014. 17 articles were identified in accordance with the inclusion and exclusion criteria. all of the publications included in the studies were experimental in vitro and covered the use of infusion pumps in transfusion therapy. A summary of the data was presented in a synoptic chart and an analysis of it generated the following categories: cellular damage and the infusion mechanism. infusion pumps can be harmful to erythrocytes based on the infusion mechanism that is used, as the linear peristaltic pump is more likely to cause hemolysis. Cellular damage is related to the plasmatic liberation of markers that largely dominate free hemoglobin and potassium. We reiterate the need for further research and technological investments to guide the development of protocols that promote safe practices and that can contribute to future clinical studies. identificar na literatura a produção científica acerca dos efeitos de bomba de infusão na administração de hemácias e avaliar as implicações do uso desses equipamentos na prática transfusional de enfermagem. revisão integrativa de literatura nas bases de dados Pubmed/Medline, Scopus, Biblioteca Virtual em Saúde, SciELO, Web of Science e Cochrane, utilizando os descritores "bombas de infusão", "transfusão de sangue", "transfusão de eritrócitos" e "hemólise". A data inicial não foi delimitada e a final foi dezembro de 2014. Foram identificados 17 artigos de acordo com os critérios de inclusão e exclusão. Todas as publicações incluídas eram estudos experimentais in vitro e abordavam o uso de bombas de infusão na terapêutica transfusional. A síntese dos dados foi apresentada em quadro sinóptico e a análise gerou duas categorias relevantes: lesão celular e mecanismo de infusão. bombas de infusão podem ser deletérias às hemácias de acordo o mecanismo de infusão, sendo que as peristálticas lineares foram mais predisponentes à hemólise. A lesão celular foi relacionada à liberação plasmática de marcadores, predominando a hemoglobina livre e potássio. Reitera-se a necessidade de pesquisas adicionais e investimentos tecnológicos para nortear o desenvolvimento de protocolos que promovam prática segura e que subsidiem futuros estudos clínicos. identificar en la literatura la producción científica acerca de los efectos de la bomba de transfusión en la administración de glóbulos rojos y evaluar las implicaciones del uso de esos equipos en la práctica transfusional de enfermería. revisión integradora de literatura en las bases de datos Pubmed/Medline, Scopus, Biblioteca Virtual en Salud, SciELO, Web of Science y Cochrane, utilizando los descriptores "bombas de infusión", "transfusión de sangre", "transfusión de eritrocitos" y "hemolisis". La fecha inicial no fue delimitada y la final fue en diciembre de 2014. Fueron identificados 17 artículos de acuerdo con los criterios de inclusión y exclusión. todas las publicaciones incluidas eran estudios experimentales in vitro y abordaban el uso de bombas de infusión en la terapéutica transfusional. La síntesis de los datos se presenta en un cuadro sinóptico y el análisis generó dos categorías relevantes: lesión celular y mecanismo de transfusión. las bombas de infusión pueden ser perjudiciales para los glóbulos rojos de acuerdo el mecanismo de transfusión, siendo que las peristálticas lineares fueron más predisponentes para la hemolisis. La lesión celular fue relacionada a la liberación plasmática de marcadores, predominando la hemoglobina libre y el potasio. Se reitera la necesidad de realizar investigaciones adicionales e inversiones tecnológicas que puedan orientar el desarrollo de protocolos que promuevan la práctica segura y que ayuden a futuros estudios clínicos.

Superconductivity achieved at over liquid nitrogen temperature by (mixed rare earths)-Ba-Cu oxides

NASA Astrophysics Data System (ADS)

Kishio, Kohji; Kuwahara, Kazuyuki; Kitazawa, Koichi; Fueki, Kazuo; Nakamura, Osamu

1987-05-01

Superconducting oxides were fabricated by reaction of powders of BaCO3, CuO and mixed rare earth (RE) carbonates at compositions expressed as (RE)1Ba2Cu3O(9-y). Two types of incompletely separated raw materials of mixed rare earths, namely, heavy rare earths (HRE) and medium rare earths (MRE), were examined. The zero-resistivity critical temperatures were observed at 92.5 K for the (HRE)-Ba-Cu-O and 85.0 K for the (MRE)-Ba-Cu-O systems, respectively, both of which were well above the boiling point of liquid nitrogen.

A Study on Low-Cost Case Hardening of Mild and Alloy Steels Utilizing Cassava Leaf Media

NASA Astrophysics Data System (ADS)

Gordon, Renee Erica

Conventional case hardening processes have major drawbacks in being expensive and hazardous to perform. A novel cyaniding technique has been developed to case harden steel which involves the use of cassava leaf. Cassava is ideal for use in this process as it contains varying degrees of cyanogenic glucoside (15-1000 mg of HCN per kg of cassava). The entire hardening process involves direct thermal decomposition of the HCN, which produced C and N gas that then diffused into the steel creating a hardened surface. Pulverized cassava leaf was involved in the pack-cyaniding of AISI 1018 and Nitralloy 135 within three varying process atmospheres. The use of barium carbonate (BaCO3) as an energizer was employed at the high temperature regime while barium chloride (BaCl2) was utilized at low temperatures. Vickers microhardness testing, microstructural characterization, and diffraction techniques were utilized for analysis. While no improvement was observed at low temperatures, processing within the high temperature regime showed significant hardening. The addition of BaCO3 to pulverized cassava leaf accelerated the hardening process by substantially increasing the resident surface microhardness while generating a shallow case layer distance. Diffusion theory was used to identify changes experienced with the variation in parameters. The presence of barium carbonate during processing decreased the diffusivity of hardening agents. This manifested in a very large, initial mass transfer of diffusing species localized in the case region followed by a minimum of any further increase in case depths, even as treatment time intervals were increased. The level of influence each parameter delivered was assessed using stepwise regression analysis and a unified model was constructed.

The magnetic properties of BaCo0.5Ni0.5F4

NASA Astrophysics Data System (ADS)

Xu, Qingyu; Dai, Chuanjun; Han, Zhida; Li, Qi

2018-05-01

The family of BaMF4 with M of magnetic 3d transition metal ions is the typical multiferroic material. Pure phase solid solution of BaCoF4 and BaNiF4 with molar ratio of 1:1 (BaCo0.5Ni0.5F4) is prepared by solid state reaction, which has been confirmed by X ray diffraction patterns. Field dependent magnetization measurements only show the linear curve with temperature down to 5 K, indicating the antiferromagnetic nature. Compared with BaCoF4 and BaNiF4, no significant enhancement of magnetization is observed, indicating the absence of ferrimagnetism and the random distribution of Co and Ni ions. The low temperature magnetic anomalies are studied by zero field cooled (ZFC) and field cooled (FC) temperature dependent magnetization (M-T) measurements. A bifurcation between FC and ZFC M-T curves happens at 118 K, indicating the onset of 2-dimensional antiferromagnetism. The magnetization maximum at 87 K is attributed to the 2-dimensional antiferromagnetic clusters, followed by the drastic decrease of magnetization, which is due to the onset of 3-dimensional antiferromagnetism. A dip is observed in FC M-T curve at 40 K, which is attributed to the 3-dimensional antiferromagnetic clusters. A drastic increase of magnetization is observed at 9 K, which is due to the uncompensated isolated spins. Exchange bias is clearly observed, with blocking temperature of 90 K. The contribution from surface spin glass has been excluded by the AC magnetization measurements, and the mechanism has been explained by the exchange coupling between the two antiferromagnetic phases.

A bone tissue engineering strategy based on starch scaffolds and bone marrow cells cultured in a flow perfusion bioreactor

NASA Astrophysics Data System (ADS)

Gomes, Maria Manuela Estima

A Engenharia de Tecidos e uma area cientifica em continua expansao. Os desenvolvimentos conseguidos por esta area tem contribuido significativamente para diversos avancos no campo da Medicina Regenerativa. Esta ciencia interdisciplinar combina os conhecimentos de diversas outras areas, tao distintas como a Engenharia de Materiais e a Biologia, com o objectivo de desenvolver substitutos sinteticos para tecidos humanos. Para se atingir este objectivo utilizam-se, de uma forma generica, combinacoes especificas de celulas e de um material de suporte tridimensional com propriedades adequadas, gerando um material hibrido cujas caracteristicas podem ainda ser moduladas atraves do sistema de cultura usado. A presente tese e centrada no desenvolvimento de estrategias de engenharia de tecido osseo baseadas na cultura in vitro de celulas previamente "semeadas" num suporte tridimensional ("scaffold"). Esta estrategia permite que as celulas adiram ao suporte, proliferem e segreguem matriz extracelular especifica do tecido osseo, ate se obter um substituto artificial funcional com caracteristicas do tecido original, que pode finalmente ser transplantado para tratar o defeito em causa. Para que uma estrategia deste tipo seja bem sucedida, pelo menos tres componentes fundamentais devem ser cuidadosamente estudados: o material de suporte (scaffold), as celulas a usar e o sistema de cultura in vitro. Dai que os principais objectivos desta tese estejam relacionados com estes tres aspectos, nomeadamente: • Desenvolvimento de scaffolds biodegradaveis a partir de polimeros a base de amido de milho que induzam a adesao e proliferacao celular e que apresentem propriedades adequadas, tais como a porosidade e interconectividade entre poros, de forma a proporcionar um ambiente que favoreca o desenvolvimento in vitro de um material hibrido com caracteristicas similares ao osso humano. • Estudo da utilizacao de celulas da medula ossea como uma potencial fonte de celulas para engenharia do tecido osseo, uma vez que estas celulas podem ser facilmente recolhidas do proprio paciente a tratar por metodos nao-invasivos (bioppsia) e em quantidades suficientes. Alem disso, tratando-se de uma fonte de celulas autologas (obtidas do proprio paciente) permitem evitar os riscos de transmissao de doencas contagiosas e/ou de rejeicao pelo sistema imunologico. • Estudo da influencia das condicoes de cultura in vitro geradas por um bioreactor de perfusao (em comparacao com os metodos tradicionais de cultura em condicoes estaticas) no desenvolvimento dos materiais hibridos, compostos pelas celulas e scaffolds, assim como as interaccoes do ambiente proporcionado por este sistema de cultura com as diferentes estruturas/arquitecturas e porosidades dos scaffolds utilizados. Estes objectivos convergem para o objectivo geral desta tese que consistiu no desenvolvimento de uma terapia de engenharia do tecido osseo alternativa as existentes e com potencial para vir a ser posteriormente utilizada na pratica clinica. Este objectivo foi avaliado atraves do estudo da funcionalidade dos materiais hibridos obtidos em diferentes condicoes de cultura in vitro (e utilizando diferentes scaffolds), partindo do principio que o sistema de perfusao poderia eventualmente superar as limitacoes de difusao tipicas dos sistema de cultura estatica e simultaneamente proporcionar estimulos mecânicos as celulas, semelhantes aos encontrados em condicoes fisiologicas. (Abstract shortened by ProQuest.).

High-temperature molten salt thermal energy storage systems for solar applications

NASA Astrophysics Data System (ADS)

Petri, R. J.; Claar, T. D.

1980-03-01

Alkali and alkaline earth carbonate latent-heat storage salts, metallic containment materials, and thermal conductivity enhancement materials were investigated to satisfy the high temperature (704 to 871 C) thermal energy storage requirements of advanced solar-thermal power generation concepts are described. Properties of the following six salts selected for compatibility studies are given: three pure carbonates, K2CO3, Li2CO3 and Na2CO3; two eutectic mixtures, BaCO3/Na2CO3 and K2CO3/NaCO3, and one off-eutectic mixture of Na2CO3/K2CO3.

High-temperature molten salt thermal energy storage systems for solar applications

NASA Technical Reports Server (NTRS)

Petri, R. J.; Claar, T. D.

1980-01-01

Alkali and alkaline earth carbonate latent-heat storage salts, metallic containment materials, and thermal conductivity enhancement materials were investigated to satisfy the high temperature (704 to 871 C) thermal energy storage requirements of advanced solar-thermal power generation concepts are described. Properties of the following six salts selected for compatibility studies are given: three pure carbonates, K2CO3, Li2CO3 and Na2CO3; two eutectic mixtures, BaCO3/Na2CO3 and K2CO3/NaCO3, and one off-eutectic mixture of Na2CO3/K2CO3.

Transection of the hepatic parenchyma associated or not with the contralateral portal vein branch ligature and its effect in liver regeneration.

PubMed

Wiederkehr, Henrique de Aguiar; Wiederkehr, Julio Cesar; Collaço, Luiz Martins; Sousa, Eros Luiz de; Salvalaggio, Paolo; Carvalho, Caroline Aragão de; Wiederkehr, Barbara de Aguiar; Marques, Camila Aparecida Moraes; Rosa, Francielle França da; Nanni, Felipe de Negreiros; Fuchs, Taíse

2017-01-01

To analyze the influence of portal vein ligation in hepatic regeneration by immunohistochemical criteria. Ten pigs divided into two groups of five animals underwent hepatectomy in two stages, and the groups were differentiated by ligation or not of the left portal vein tributary, which is responsible for vascularization of the left lateral and medial lobes of the pig liver. Five days after the procedure, the animals underwent liver biopsies for further analysis of histological and immunohistochemical with marker Ki67. The group submitted to hepatectomy with vascular ligation showed an increase of approximately 4% of hepatocytes in regeneration status, as well as a greater presence of Kupffer and inflammatory cells as compared to control. As a result of positive cell replication observed through the Ki67 marker, we can suspect that the ligation of a tributary of the portal vein associated with liver resection promoted a greater stimulus of liver regeneration when compared to liver resection alone. Analisar a influência da ligadura da tributária da veia porta no estímulo regenerativo hepático por meio de critérios imuno-histoquímicos. Dez suínos, divididos em dois grupos de cinco animais, foram submetidos à hepatectomia em dois estágios, sendo que os grupos foram diferenciados pela ligadura ou não da tributária da veia porta, responsável pela vascularização dos lobos lateral e medial esquerdos do fígado do suíno. Cinco dias após o procedimento, os animais foram reabordados para retirada de amostras hepáticas para posterior análise de histológica e imunoistoquímica com o marcador Ki67. O grupo submetido à hepatectomia com ligadura vascular apresentou incremento de 4% aproximadamente de hepatócitos em processo de regeneração, bem como grande número de células de Kupffer e células inflamatórias, quando comparado ao controle. Em virtude da análise positiva da replicação celular observada por meio do marcador Ki67, pode-se observar que a ligadura de uma tributária da veia porta promoveu um maior estímulo de regeneração hepática, efeito observado com menor intensidade no grupo submetido apenas à ressecção hepática.

PubMed

Scotta, Ana Verónica; Bongiovanni, Guillermina Azucena; Soria, Elio Andrés

2018-03-21

Antecedentes: Clorpirifos es un pesticida altamente tóxico, que puede producir inmunotoxicidad con efectos deletéreos sobre la salud a nivel mundial. Por otro lado, las plantas americanas pueden tener derivados con actividad protectora e inmunoestimulante. Por lo tanto, debe evaluarse el potencial de estas plantas frente a clorpirifos. Objetivo: Identificar extractos acuosos bioactivos de Lantana grisebachii (LG), Aspidosperma quebracho-blanco (AQ), Peumus boldus (PB), e Ilex paraguariensis (IP), contra la toxicidad de clorpirifos sobre esplenocitos de hembras Balb/c. Materiales y Métodos: Esplenocitos fueron tratados in vitro por 72 horas con 0-35 µg/mL de clorpirifos, 0-100 µg/mL de cada extracto (LG, AQ, PB, IP) y 0-5 µg/mL de concanavalina A. Luego, se midió y analizó estadísticamente viabilidad y muerte celular (tinciones de resazurina y yoduro de propidio), hidroperóxidos, lipoperóxidos (ensayos basados en naranja de xilenol), actividad de la ?-glutamiltranspeptidasa (método de Szasz). Resultados: Clorpirifos redujo la viabilidad celular de forma dosis dependiente, lo que fue contrarrestado por AQ e IP, los que fueron menos activos en las células inducibles por concanavalina A (p<0,05). La toxicidad por clorpirifos implicó la inducción de la ?-glutamiltranspeptidasa con la consecuente reducción de los peróxidos, mientras que AQ y principalmente IP antagonizaron dichas respuestas (p<0,05). Conclusiones: Los extractos de Ilex paraguariensis y Aspidosperma quebracho-blanco protegieron in vitro a los esplenocitos frente a clorpirifos. Este efecto dependió del tipo celular, dado que las células inducibles por concanavalina A fueron más susceptibles a este tóxico.

Novel Approaches to Spectral Properties of Correlated Electron Materials: From Generalized Kohn-Sham Theory to Screened Exchange Dynamical Mean Field Theory

NASA Astrophysics Data System (ADS)

Delange, Pascal; Backes, Steffen; van Roekeghem, Ambroise; Pourovskii, Leonid; Jiang, Hong; Biermann, Silke

2018-04-01

The most intriguing properties of emergent materials are typically consequences of highly correlated quantum states of their electronic degrees of freedom. Describing those materials from first principles remains a challenge for modern condensed matter theory. Here, we review, apply and discuss novel approaches to spectral properties of correlated electron materials, assessing current day predictive capabilities of electronic structure calculations. In particular, we focus on the recent Screened Exchange Dynamical Mean-Field Theory scheme and its relation to generalized Kohn-Sham Theory. These concepts are illustrated on the transition metal pnictide BaCo2As2 and elemental zinc and cadmium.

EuCo 2P 2: A Model Molecular-Field Helical Heisenberg Antiferromagnet

DOE PAGES

Sangeetha, N. S.; Cuervo-Reyes, Eduardo; Pandey, Abhishek; ...

2016-07-19

The metallic compound EuCo 2P 2 with the body-centered tetragonal ThCr 2Si 2 structure containing Eu spins-7/2 was previously shown from single-crystal neutron diffraction measurements to exhibit a helical antiferromagnetic (AFM) structure below T N=66.5 K with the helix axis along the c axis and with the ordered moments aligned within the ab plane. Here we report crystallography, electrical resistivity, heat capacity, magnetization, and magnetic susceptibility measurements on single crystals of this compound. We demonstrate that EuCo 2P 2 is a model molecular-field helical Heisenberg antiferromagnet from comparisons of the anisotropic magnetic susceptibility χ, high-field magnetization, and magnetic heat capacitymore » of EuCo 2P 2 single crystals at temperature T≤TN with the predictions of our recent formulation of molecular-field theory. Values of the Heisenberg exchange interactions between the Eu spins are derived from the data. The low-T magnetic heat capacity ~T 3 arising from spin-wave excitations with no anisotropy gap is calculated and found to be comparable to the lattice heat capacity. The density of states at the Fermi energy of EuCo 2P 2 and the related compound BaCo 2P 2 are found from the heat capacity data to be large, 10 and 16 states/eV per formula unit for EuCo 2P 2 and BaCo 2P 2, respectively. These values are enhanced by a factor of ~2.5 above those found from DFT electronic structure calculations for the two compounds. Additionally, the calculations also find ferromagnetic Eu–Eu exchange interactions within the ab plane and AFM interactions between Eu spins in nearest- and next-nearest planes, in agreement with the MFT analysis of χ ab(T≤TN).« less

EuCo 2P 2: A Model Molecular-Field Helical Heisenberg Antiferromagnet

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sangeetha, N. S.; Cuervo-Reyes, Eduardo; Pandey, Abhishek

The metallic compound EuCo 2P 2 with the body-centered tetragonal ThCr 2Si 2 structure containing Eu spins-7/2 was previously shown from single-crystal neutron diffraction measurements to exhibit a helical antiferromagnetic (AFM) structure below T N=66.5 K with the helix axis along the c axis and with the ordered moments aligned within the ab plane. Here we report crystallography, electrical resistivity, heat capacity, magnetization, and magnetic susceptibility measurements on single crystals of this compound. We demonstrate that EuCo 2P 2 is a model molecular-field helical Heisenberg antiferromagnet from comparisons of the anisotropic magnetic susceptibility χ, high-field magnetization, and magnetic heat capacitymore » of EuCo 2P 2 single crystals at temperature T≤TN with the predictions of our recent formulation of molecular-field theory. Values of the Heisenberg exchange interactions between the Eu spins are derived from the data. The low-T magnetic heat capacity ~T 3 arising from spin-wave excitations with no anisotropy gap is calculated and found to be comparable to the lattice heat capacity. The density of states at the Fermi energy of EuCo 2P 2 and the related compound BaCo 2P 2 are found from the heat capacity data to be large, 10 and 16 states/eV per formula unit for EuCo 2P 2 and BaCo 2P 2, respectively. These values are enhanced by a factor of ~2.5 above those found from DFT electronic structure calculations for the two compounds. Additionally, the calculations also find ferromagnetic Eu–Eu exchange interactions within the ab plane and AFM interactions between Eu spins in nearest- and next-nearest planes, in agreement with the MFT analysis of χ ab(T≤TN).« less

Biophysical and Biochemical Mechanisms in Synaptic Transmitter Release.

DTIC Science & Technology

1992-01-31

vesicle is normally released per active zone Sci USA 83. 3032 (1986) pared (15, 19, 20). In fact, in squid, the quantum 8 0 Shimomura 8 Musicki. V Kisni...8217, AND R. LLINAS• *Instituto de Biologia Celular Facultad de Medicina. Universidad de Buenos Aires. Paraguay 2155. Buenos Aires 1121. Argentina: and

Barium isotope fractionation during experimental formation of the double carbonate BaMn[CO3](2) at ambient temperature.

PubMed

Böttcher, Michael E; Geprägs, Patrizia; Neubert, Nadja; von Allmen, Katja; Pretet, Chloé; Samankassou, Elias; Nägler, Thomas F

2012-09-01

In this study, we present the first experimental results for stable barium (Ba) isotope ((137)Ba/(134)Ba) fractionation during low-temperature formation of the anhydrous double carbonate BaMn[CO(3)](2). This investigation is part of an ongoing work on Ba fractionation in the natural barium cycle. Precipitation at a temperature of 21±1°C leads to an enrichment of the lighter Ba isotope described by an enrichment factor of-0.11±0.06‰ in the double carbonate than in an aqueous barium-manganese(II) chloride/sodium bicarbonate solution, which is within the range of previous reports for synthetic pure BaCO (3) (witherite) formation.

Optical properties of ZnO/BaCO3 nanocomposites in UV and visible regions.

PubMed

Zak, Ali Khorsand; Hashim, Abdul Manaf; Darroudi, Majid

2014-01-01

Pure zinc oxide and zinc oxide/barium carbonate nanoparticles (ZnO-NPs and ZB-NPs) were synthesized by the sol-gel method. The prepared powders were characterized by X-ray diffraction (XRD), ultraviolet-visible (UV-Vis), Auger spectroscopy, and transmission electron microscopy (TEM). The XRD result showed that the ZnO and BaCO3 nanocrystals grow independently. The Auger spectroscopy proved the existence of carbon in the composites besides the Zn, Ba, and O elements. The UV-Vis spectroscopy results showed that the absorption edge of ZnO nanoparticles is redshifted by adding barium carbonate. In addition, the optical parameters including the refractive index and permittivity of the prepared samples were calculated using the UV-Vis spectra. 81.05.Dz; 78.40.Tv; 42.70.-a.

The International Cytokine Conference (11th) Held in Dublin (Ireland) on September 20-24 2003 (European Cytokine Network, Volume 14, Number 3, September 2003)

DTIC Science & Technology

2003-09-01

Fisiologia Celular UNAM, Mexico City/ Mexico specific marker of bacterial sepsis. Despite the increasing clinical importance of PCT the knowledge about its...about their function or scription factor NF-kappaB. Likewise, Varicella -zoster virus strongly mechanism of action. activates the AP- 1 components Jun and

Oxygen isotope fractionation in divalent metal carbonates

USGS Publications Warehouse

O'Neil, J.R.; Clayton, R.N.; Mayeda, T.K.

1969-01-01

Equilibrium fractionation factors for the distribution of 18O between alkaline-earth carbonates and water have been measured over the temperature range 0-500??C. The fractionation factors ?? can be represented by the equations CaCO3-H2O, 1000 ln??=2.78(106 T-2)-3.39, SrCO3-H 2O, 1000 ln??=2.69(106 T-2)-3.74, BaCO3-H2O, 1000 ln??=2.57(106 T -2)-4.73. Measurements on MnCO3, CdCO3, and PbCO3 were made at isolated temperatures. A statistical-mechanical calculation of the isotopic partition function ratios gives reasonably good agreement with experiment. Both cationic size and mass are important in isotopic fractionation, the former predominantly in its effect on the internal vibrations of the anion, the latter in its effect on the lattice vibrations.

Emission properties of Ce3+ centers in barium borate glasses prepared from different precursor materials

NASA Astrophysics Data System (ADS)

Torimoto, Aya; Masai, Hirokazu; Okada, Go; Kawaguchi, Noriaki; Yanagida, Takayuki; Ohkubo, Takahiro

2017-10-01

The photoluminescence (PL) and X-ray induced luminescence properties of Ce-doped barium borate glasses prepared from different precursor materials have been investigated. Oxidation of Ce3+ takes place during the melting process performed using a pre-vitrified non-doped glass. Residual groups originated from the precursor materials, such as fluorine atoms and OH groups, are found to affect the optical and emission properties of the glasses. Moreover, both the PL and the X-ray induced luminescence properties of the glasses depend on the precursor materials used for their synthesis. Based on a thorough analysis of the emission properties, we conclude that the best synthesis conditions involve melting a batch containing Ce(CH3COO)3·H2O, BaCO3, and B2O3 in Ar atmosphere.

Growth of single crystals of BaFe12O19 by solid state crystal growth

NASA Astrophysics Data System (ADS)

Fisher, John G.; Sun, Hengyang; Kook, Young-Geun; Kim, Joon-Seong; Le, Phan Gia

2016-10-01

Single crystals of BaFe12O19 are grown for the first time by solid state crystal growth. Seed crystals of BaFe12O19 are buried in BaFe12O19+1 wt% BaCO3 powder, which are then pressed into pellets containing the seed crystals. During sintering, single crystals of BaFe12O19 up to ∼130 μm thick in the c-axis direction grow on the seed crystals by consuming grains from the surrounding polycrystalline matrix. Scanning electron microscopy-energy dispersive spectroscopy analysis shows that the single crystal and the surrounding polycrystalline matrix have the same chemical composition. Micro-Raman scattering shows the single crystal to have the BaFe12O19 structure. The optimum growth temperature is found to be 1200 °C. The single crystal growth behavior is explained using the mixed control theory of grain growth.

Molten Salt Synthesis and Structural Characterization of BaTiO3 Nanocrystal Ceramics

NASA Astrophysics Data System (ADS)

Ahda, S.; Misfadhila, S.; Parikin, P.; Putra, T. Y. S. P.

2017-02-01

A new synthesis route to obtain high-purity barium titanate powder, BaTiO3, using the molten salt method by reacting the raw materials (BaCO3 and TiO2) in an atmosphere of molten NaCl and KCl, has been developed. The synthesized BaTiO3 ceramic particles have been successfully carried out at the sintering temperature 950°C for 4 hours. The Rietveld refinement of the XRD diffraction patterns was employed to characterize the structural information of the nanocrystalline BaTiO3 ceramics. The lattice parameters (a=4.0043 Å, b=4.0308Å with space group P4mm) of tetragonal perovskite structure, as an indication of piezoelectric characteristics, have been successfully determined by the Rietveld refinement. While the crystallitte particle size and strains have been obtained for the values of 110.6 nm and 0.74 % respectively

Fire-retardant foams

NASA Technical Reports Server (NTRS)

Gagliani, J.

1978-01-01

Family of polyimide resins are being developed as foams with exceptional fire-retardant properties. Foams are potentially useful for seat cushions in aircraft and ground vehicles and for applications such as home furnishings and building-construction materials. Basic formulations can be modified with reinforcing fibers or fillers to produce celular materials for variety of applications. By selecting reactants, polymer structure can be modified to give foams with properties ranging from high resiliency and flexibility to brittleness and rigidity.

Cardiac Regeneration using Growth Factors: Advances and Challenges.

PubMed

Rebouças, Juliana de Souza; Santos-Magalhães, Nereide Stela; Formiga, Fabio Rocha

2016-09-01

Myocardial infarction is the most significant manifestation of ischemic heart disease and is associated with high morbidity and mortality. Novel strategies targeting at regenerating the injured myocardium have been investigated, including gene therapy, cell therapy, and the use of growth factors. Growth factor therapy has aroused interest in cardiovascular medicine because of the regeneration mechanisms induced by these biomolecules, including angiogenesis, extracellular matrix remodeling, cardiomyocyte proliferation, stem-cell recruitment, and others. Together, these mechanisms promote myocardial repair and improvement of the cardiac function. This review aims to address the strategic role of growth factor therapy in cardiac regeneration, considering its innovative and multifactorial character in myocardial repair after ischemic injury. Different issues will be discussed, with emphasis on the regeneration mechanisms as a potential therapeutic resource mediated by growth factors, and the challenges to make these proteins therapeutically viable in the field of cardiology and regenerative medicine. Resumo O infarto do miocárdio representa a manifestação mais significativa da cardiopatia isquêmica e está associado a elevada morbimortalidade. Novas estratégias vêm sendo investigadas com o intuito de regenerar o miocárdio lesionado, incluindo a terapia gênica, a terapia celular e a utilização de fatores de crescimento. A terapia com fatores de crescimento despertou interesse em medicina cardiovascular, devido aos mecanismos de regeneração induzidos por essas biomoléculas, incluindo angiogênese, remodelamento da matriz extracelular, proliferação de cardiomiócitos e recrutamento de células-tronco, dentre outros. Em conjunto, tais mecanismos promovem a reparação do miocárdio e a melhora da função cardíaca. Esta revisão pretende abordar o papel estratégico da terapia, com fatores de crescimento, para a regeneração cardíaca, considerando seu caráter inovador e multifatorial sobre o reparo do miocárdio após dano isquêmico. Diferentes questões serão discutidas, destacando-se os mecanismos de regeneração como recurso terapêutico potencial mediado por fatores de crescimento e os desafios para tornar essas proteínas terapeuticamente viáveis no âmbito da cardiologia e da medicina regenerativa.

Fidelity of DNA Replication in Normal and Malignant Human Breast Cells.

DTIC Science & Technology

1997-08-01

enzyme) into the multiple cloning site (MCS). This template will not only replicate inside a mammalian cell (utilizing the E-B virus origin), and...Maniatis, T. Commonly used techniques in molecular cloning . In: Molecular cloning : REFERENCES a laboratory manual, 2nd edition. Cold Spring Harbor...A vatit"Y Of DNA synthesis and the typt of DNA replica~tion Products " celular prca including DNA rsplicatlon. DNA repsair. R~NA formed in experiments

Actions of Interferons on Macrophages.

DTIC Science & Technology

1984-06-01

cell productin celular immunity. The following is a list of our accomplishments. 1. The successful immunization of rats with a partially purified IFNy...antibbdy (MAb) was cloned . 3. The hybridoma producing rat anti-MuiFN*MAb has proven stable and is being propagated both in vitro and as well as in vivo in...containing 20% FBS. The cloned hybridoma (R4-6A2) was expanded and the isotype of monoclonal antibody (MAb) produced by this clone was determined to be in

Riego y fertirriego

Treesearch

R. Kasten Dumroese; Thomas D. Landis; Kim M. Wilkinson

2012-01-01

El agua es el factor que más puede afectar el crecimiento y la sanidad de las plantas por sí solo. Es esencial para casi todos los procesos vegetales: la fotosíntesis, el transporte de nutrientes, el crecimiento y el desarrollo celular. De hecho, del 80 al 90% del peso de un plantín es agua, por lo cual el manejo del riego es una de las tareas más trascendentes dentro...

[Post-partum thyroiditis].

PubMed

Neves, Celestino; Alves, Marta; Delgado, Luís; Medina, J Luís

2009-01-01

In the post-partum period the immune alterations are associated with the multiple autoimmune diseases relapse. After birth, immune-tolerance variation slowly disappear, and is observed a return to a normal state - after an exacerbation period - of autoimmune reactivity, during which a great increase in T cells and autoantibodies is observed. In this period - 3 to 9 months after birth - the thyroid autoimmune disease relapses or reappears. The reactivation of the immune system in the post-partum period unchains an acute phase of celular destruction which characterizes the post-partum thyroiditis.

Host Defense Against Opportunist Microorganisms Following Trauma

DTIC Science & Technology

1989-06-30

the cAMP content of PMNs from injured and normal animals was com- pared . In addition, the effect of treatment with NSAIDs and cAMP activa- tors on...demonstrated that peripheral and peritoneal exudate PMNs from injured animals had a marked elevation of cAMP as com- pared with similar PMN preparations from...Measurement of rates of phagocytosis: the use of celular monolayers. J. Cell Biol. 40:216. 27. Bjornson, A. B., P. I. Magnafichi, R. D. Schreiber, and H. S

Influences of annealing temperature on structural characterization and magnetic properties of Mn-doped BaTiO3 ceramics

NASA Astrophysics Data System (ADS)

Phan, The-Long; Zhang, P.; Grinting, D.; Yu, S. C.; Nghia, N. X.; Dang, N. V.; Lam, V. D.

2012-07-01

Polycrystalline samples of BaTiO3 doped with 2.0 at. % Mn were prepared by solid-state reaction at various temperatures (Tan) ranging from 500 to 1350 °C, used high-pure powders of BaCO3, TiO2, and MnCO3 as precursors. Experimental results obtained from x-ray diffraction patterns and Raman scattering spectra reveal that tetragonal Mn-doped BaTiO3 starts constituting as Tan ≈ 500 °C. The Tan increase leads to the development of this phase. Interestingly, there is the tetragonal-hexagonal transformation in the crystal structure of BaTiO3 as Tan ≈ 1100 °C. Such the variations influence directly magnetic properties of the samples. Besides paramagnetic contributions of Mn2+ centers traced to electron spin resonance, the room-temperature ferromagnetism found in the samples is assigned to exchange interactions taking place between Mn3+ and Mn4+ ions located in tetragonal BaTiO3 crystals.

Epitaxial Relationships between Calcium Carbonate and Inorganic Substrates

PubMed Central

Yang, Taewook; Jho, Jae Young; Kim, Il Won

2014-01-01

The polymorph-selective crystallization of calcium carbonate has been studied in terms of epitaxial relationship between the inorganic substrates and the aragonite/calcite polymorphs with implication in bioinspired mineralization. EpiCalc software was employed to assess the previously published experimental results on two different groups of inorganic substrates: aragonitic carbonate crystals (SrCO3, PbCO3, and BaCO3) and a hexagonal crystal family (α-Al2O3, α-SiO2, and LiNbO3). The maximum size of the overlayer (aragonite or calcite) was calculated for each substrate based on a threshold value of the dimensionless potential to estimate the relative nucleation preference of the polymorphs of calcium carbonate. The results were in good agreement with previous experimental observations, although stereochemical effects between the overlayer and substrate should be separately considered when existed. In assessing the polymorph-selective nucleation, the current method appeared to provide a better tool than the oversimplified mismatch parameters without invoking time-consuming molecular simulation\\. PMID:25226539

Ceramics with Different Additives

NASA Astrophysics Data System (ADS)

Wang, Juanjuan; Feng, Lajun; Lei, Ali; Zhao, Kang; Yan, Aijun

2014-09-01

Li2CO3, MgCO3, BaCO3, and Bi2O3 dopants were introduced into CaCu3Ti4O12 (CCTO) ceramics in order to improve the dielectric properties. The CCTO ceramics were prepared by conventional solid-state reaction method. The phase structure, microstructure, and dielectric behavior were carefully investigated. The pure structure without any impurity phases can be confirmed by the x-ray diffraction patterns. Scanning Electron Microscopy (SEM) analysis illuminated that the grains of Ca0.90Li0.20Cu3Ti4O12 ceramics were greater than that of pure CCTO. It was important for the properties of the CCTO ceramics to study the additives in complex impedance spectroscopy. It was found that the Ca0.90Li0.20Cu3Ti4O12 ceramics had the higher permittivity (>45000), the lower dielectric loss (<0.025) than those of CCTO at 1 kHz at room temperature and good temperature stability from -30 to 75 °C.

Miniaturized Amperometric Solid Electrolyte Carbon Dioxide Sensors

NASA Technical Reports Server (NTRS)

Hunter, G. W.; Xu, J. C.; Liu, C. C.; Hammond, J. W.; Ward, B.; Lukco, D.; Lampard, P.; Artale, M.; Androjna, D.

2006-01-01

A miniaturized electrochemical carbon dioxide (CO2) sensor using Na3Z r2Si2PO12 (NASICON) as a solid electrolyte has been fabricated and de monstrated. Microfabrication techniques were used for sensor fabricat ion to yield a sensing area around 1.0 mm x 1.1 mm. The NASICON solid electrolyte and the Na2CO3/BaCO3 (1:1.7 molar ratio) auxiliary elect rolyte were deposited by sputtering in between and on top of the inte rdigitated finger-shaped platinum electrodes. This structure maximize s the length of the three-phase boundary (electrode, solid electrolyt e, and auxiliary electrolyte), which is critical for gas sensing. The robust CO2 sensor operated up to 600 C in an amperometric mode and a ttempts were made to optimize sensor operating parameters. Concentrat ions of CO2 between 0.02% and 4% were detected and the overall sensor performance was evaluated. Linear response of sensor current output to ln[CO2 concentration] ranging from 0.02% to 1% was achieved.

Characterization of M-type barium hexagonal ferrite-based wide band microwave absorber

NASA Astrophysics Data System (ADS)

Meshram, M. R.; Agrawal, Nawal K.; Sinha, Bharoti; Misra, P. S.

2004-05-01

This paper present the design, development and characterization of the hexagonal ferrite powder [BaCo 0.5δTi 0.5δMn 0.1Fe (11.87-δ)O 19] and [Ba(MnTi) δFe (12-2δ)O 19] at δ=1.6 as a microwave absorber. The hexagonal ferrite powder has been developed by dry attrition and sintering procedure. The developed ferrite powder 60% by weight has been mixed in epoxy resin to form a microwave-absorbing paint. This paint was coated on a conducting aluminum sheet to study the absorption characteristics of a linearly polarized TE wave at X band. The results for single- and two-layer microwave absorbers for different coating thicknesses have been reported. It has been found that it shows the broadband characteristics with minimum absorption of 8 dB from 8 to 12 GHz for a coating thickness of 2 mm.These paints are very useful in military applications such as RCS reduction, camouflaging of the target and prevention of EMI, etc.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wang, Siwei; Chen, Yan; Zhang, Lingling

Ceramic-based proton conductors enable high-temperature hydrogen economy applications such as hydrogen separation membranes, fuel cells, and steam electrolyzers. BaZr 0.8Y 0.2O 3-δ(BZY) proton-conducting oxide possesses the highest level of proton conductivity reported to date, but poor sinterability hinders its widespread utilization. In this paper, we report a two-step reactive aid sintering (TRAS) method involving the introduction of BaCO 3 and B 2O 3-Li 2O for the preparation of dense BZY ceramics sintered at 1500°C. The resulting BZY samples showed a pure perovskite structure with a dramatic increase in the relative density to 91.5%. In addition, the shrinkage during sintering wasmore » improved to 19.3% by a TRAS method as compared to 2.6% by the conventional solid date reaction method. In conclusion, the bulk conductivity was improved due to enhanced densification, while the grain boundary conductivity decreased due to the blocking behavior of the sintering aid resulting in a decrease in the total conductivity of the samples.« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wang, Siwei; Chen, Yan; Zhang, Lingling

Ceramic-based proton conductors enable high-temperature hydrogen economy applications such as hydrogen separation membranes, fuel cells, and steam electrolyzers. BaZr 0.8Y 0.2O 3-δ (BZY) proton-conducting oxide possesses the highest level of proton conductivity reported to date, but poor sinterability hinders its widespread utilization. Here, we report a two-step reactive aid sintering (TRAS) method involving the introduction of BaCO 3 and B 2O 3-Li 2O for the preparation of dense BZY ceramics sintered at 1500°C. The resulting BZY samples showed a pure perovskite structure with a dramatic increase in the relative density to 91.5%. In addition, the shrinkage during sintering was improvedmore » to 19.3% by a TRAS method as compared to 2.6% by the conventional solid date reaction method. Moreover, the bulk conductivity was improved due to enhanced densification, while the grain boundary conductivity decreased due to the blocking behavior of the sintering aid resulting in a decrease in the total conductivity of the samples.« less

Unusual Bloom of Tetraselmis sp. in the Valparaiso Bay, Chile

DTIC Science & Technology

2012-01-01

Universidad Técnica Federico Santa María, Sede Viña del Mar, Chile (33º02`05.50``S; 71º35`44.54``O). Los datos de magnitud – dirección del viento por la...λ (nm) 372 Gayana Bot. 69(2), 2012 AGRADECIMIENTOS A Gloria Collantes por identificación del género Tetraselmis. Universidad Técnica Federico Santa...Tetraselmis sp. pudo ser el factor excluyente de las especies de diatomeas, permitiendo alcanzar una alta densidad celular, debido al rápido consumo

[Immunological status of patients with amebic hepatic abscess].

PubMed

Canto Solís, A; Miranda Feria, A J; Medina Martinez, J; Teran Ortíz, L A; Suárez Sánchez, F

1975-01-01

The authors studied 10 cases of amoebic hepatic abscess documented by clinical evidence and confirmed by laboratory tests, liver scan and a good response to treatment. The immunological state of the patients was determined by protein electrophoresis, immunoelectrophoresis, counter-immunoelectrophoresis, radial immunodiffusion and roset formation for T and B lymphocytes. It is concluded that the alterations of cellular and humoral immunity is evident in cases of amoebic hepatic abscess; this alterations are more clear in the acute form of the illness and the immunological deficiency is more significant in the celular immunity.

[Effect of indolylacetic acid on formation of bacteroid forms of Rhizobium leguminosarum].

PubMed

Lobanok, E V; Bakanchikova, T I

1979-01-01

The purpose of this work was to study the effect of indolylacetic acid (IAA) on the strains of Rhizobium leguminosarum, effective and noneffective with respect to symbiotic nitrogen fixation (L4 and 245a, and 14--73, respectively). IAA at a concentration of 50 mcg/ml and higher inhibited the growth of the bacterium, temporarily delayed celular division, and induced intensive formation of elongated bacteroid-like cells, predominantly Y-shaped or having a clavate shape. Many bacteroid-like cells were capable of division after a certain delay.

[Familial retinoblastoma: cytogenetic study of the tumor].

PubMed

Robledo Batanero, M; Manzanal Martínez, A; Ayuso García, C; Benítez Ortiz, J

1990-05-01

We report a case of familiar retinoblastoma, in which both mother and daughter show bilateral retinoblastoma. The cytogenetic study, in both peripheral blood lymphocytes and tumoral tissue did not show alterations on the 13 chromosome, although we found a complex kariotype in tumoral tissue defined by three celular lines. In all of them appears a marker in which the 6 chromosome is involved (der 6). The derivated of 6 chromosome are markers highly characteristic of the retinoblastoma cases, and can be related with the aggressivity of tumor and the appearance of the second tumors.

To overcome the appearance of the efflorescences by magnesium carbonate addition in a mass for manufacture of bricks of construction

NASA Astrophysics Data System (ADS)

Chemani, H.

2011-01-01

Following the tendency of some European countries the briquetiers develop further the aesthetic aspect of their products and, the supply of colors and, aspects of surface will be further extended. The recovery of the sustainability of facades in bricks apparent, the quality of raw materials, and their determination remain a major problem. The presence of soluble salts in the field is fairly harmful for the product terracotta because they are the cause of apparitions of efflorescences. To defeat this type of default our study is on an addition of MgCO3 a mixture of two kinds of clay. The doses MgCO3 were between (0,25-0,5-0,75-1-1,5%) of the dry mass to treat. With rates of clay yellow and, gray which are respectively (40-60%). In comparison with a previous study where the addition was BaCO3. Finished products obtained with 1% MgCO3 exhibited a better aesthetic aspect, of the qualities insulating, and a mechanical resistance significantly higher than the bricks ceramics ordinary marketed at the present time.

Small CO2 Sensors Operate at Lower Temperature

NASA Technical Reports Server (NTRS)

Hunter, Gary W.; Xu, Jennifer C.

2009-01-01

Solid-electrolyte-based amperometric sensors for measuring concentrations of CO2 in air are being developed for use in detection of fires, environmental monitoring, and other applications where liquid-based electrochemical cells are problematic. These sensors are small (sizes of the order of a millimeter), are robust, are amenable to batch fabrication at relatively low cost, and exhibit short response times (seconds) and wide detection ranges. A sensor of this type at a previous stage of development included a solid electrolyte of Na3Zr2Si2PO12 deposited mainly between interdigitated Pt electrodes on an alumina substrate, all overcoated with an auxiliary solid electrolyte of (Na2CO3:BaCO3 in a molar ratio of 1:1.7). It was necessary to heat this device to a temperature as high as 600 C to obtain the desired sensitivity and rapid response. Heating sensors increases the power consumption of the sensor system and complicates the use of the sensor in some applications. Thus, decreasing a sensor s power consumption while maintaining its performance is a technical goal of ongoing development.

Two-Step Reactive Aid Sintering of BaZr0.8Y0.2O3- δ Proton-Conducting Ceramics

NASA Astrophysics Data System (ADS)

Wang, Siwei; Chen, Yan; Zhang, Lingling; Ren, Cong; Chen, Fanglin; Brinkman, Kyle S.

2015-12-01

Ceramic-based proton conductors enable high-temperature hydrogen economy applications such as hydrogen separation membranes, fuel cells, and steam electrolyzers. BaZr0.8Y0.2O3- δ (BZY) proton-conducting oxide possesses the highest level of proton conductivity reported to date, but poor sinterability hinders its widespread utilization. In this paper, we report a two-step reactive aid sintering (TRAS) method involving the introduction of BaCO3 and B2O3-Li2O for the preparation of dense BZY ceramics sintered at 1500°C. The resulting BZY samples showed a pure perovskite structure with a dramatic increase in the relative density to 91.5%. In addition, the shrinkage during sintering was improved to 19.3% by a TRAS method as compared to 2.6% by the conventional solid date reaction method. The bulk conductivity was improved due to enhanced densification, while the grain boundary conductivity decreased due to the blocking behavior of the sintering aid resulting in a decrease in the total conductivity of the samples.

Two-Step Reactive Aid Sintering of BaZr 0.8Y 0.2O 3-δ Proton-Conducting Ceramics

DOE PAGES

Wang, Siwei; Chen, Yan; Zhang, Lingling; ...

2015-10-14

Ceramic-based proton conductors enable high-temperature hydrogen economy applications such as hydrogen separation membranes, fuel cells, and steam electrolyzers. BaZr 0.8Y 0.2O 3-δ (BZY) proton-conducting oxide possesses the highest level of proton conductivity reported to date, but poor sinterability hinders its widespread utilization. Here, we report a two-step reactive aid sintering (TRAS) method involving the introduction of BaCO 3 and B 2O 3-Li 2O for the preparation of dense BZY ceramics sintered at 1500°C. The resulting BZY samples showed a pure perovskite structure with a dramatic increase in the relative density to 91.5%. In addition, the shrinkage during sintering was improvedmore » to 19.3% by a TRAS method as compared to 2.6% by the conventional solid date reaction method. Moreover, the bulk conductivity was improved due to enhanced densification, while the grain boundary conductivity decreased due to the blocking behavior of the sintering aid resulting in a decrease in the total conductivity of the samples.« less

[Combination drug therapy in leprosy].

PubMed

Terencio de las Aguas, J

1983-01-01

The importance of polichemotherapy in multibacilar leprosy (LL and LD) in patients without any previous therapy as in those diagnosticated and under monotherapy most of all in the resistance patients is presented. Sulphones, clofazimine and rifampicine are selected as first rate drugs and protionamide-etionamide as second rate drugs. The therapy plans with the association of two and three drugs and the convenience of continuing indefinitely with at least one of the drugs are presented insisting on the advantages of the clofazimine-sulphones and rifampicine-sulphones associations. The necessity of immunotherapy for recover of celular immunity against the bacilus, is the only form of preventing relapses and drug resistance.

Enhanced phosphorescence in N contained Ba 2SiO 4:Eu 2+ for X-ray and cathode ray tubes

NASA Astrophysics Data System (ADS)

Wang, Meiyuan; Zhang, Xia; Hao, Zhendong; Ren, Xinguang; Luo, Yongshi; Wang, Xiaojun; Zhang, Jiahua

2010-07-01

A bluish-green color long-lasting phosphorescent phosphor of N contained Ba 2SiO 4:Eu 2+ for X-ray and cathode ray tubes are prepared with the chemical component formula Ba 2SiO 4:0.01Eu 2+ - xSi 3N 4 - 2BaCO 3 ( x = 0.1 to 1.0) by the conventional high-temperature solid-state method. The phosphorescence and fluorescence properties as a function of Si 3N 4 content and temperature are investigated. The emission spectra show a single broad band peaking at 505 nm, which are ascribed to the 4f 65d 1 → 4f 7 transition of Eu 2+. Thermoluminescence (TL) glow-curves show that Ba 2SiO 4:0.01Eu 2+ without N holds a high-temperature peak at 417 K. With increasing the content of Si 3N 4, the phosphorescence grows super-linearly and some new TL peaks appear at low temperatures of about 400, 355, 365, and 335 K. These peaks are ascribed to the formation of new traps related to N substitution for O.

Quantum Criticality of an Ising-like Spin-1 /2 Antiferromagnetic Chain in a Transverse Magnetic Field

NASA Astrophysics Data System (ADS)

Wang, Zhe; Lorenz, T.; Gorbunov, D. I.; Cong, P. T.; Kohama, Y.; Niesen, S.; Breunig, O.; Engelmayer, J.; Herman, A.; Wu, Jianda; Kindo, K.; Wosnitza, J.; Zherlitsyn, S.; Loidl, A.

2018-05-01

We report on magnetization, sound-velocity, and magnetocaloric-effect measurements of the Ising-like spin-1 /2 antiferromagnetic chain system BaCo2V2O8 as a function of temperature down to 1.3 K and an applied transverse magnetic field up to 60 T. While across the Néel temperature of TN˜5 K anomalies in magnetization and sound velocity confirm the antiferromagnetic ordering transition, at the lowest temperature the field-dependent measurements reveal a sharp softening of sound velocity v (B ) and a clear minimum of temperature T (B ) at B⊥c,3 D=21.4 T , indicating the suppression of the antiferromagnetic order. At higher fields, the T (B ) curve shows a broad minimum at B⊥c=40 T , accompanied by a broad minimum in the sound velocity and a saturationlike magnetization. These features signal a quantum phase transition, which is further characterized by the divergent behavior of the Grüneisen parameter ΓB∝(B -B⊥c)-1. By contrast, around the critical field, the Grüneisen parameter converges as temperature decreases, pointing to a quantum critical point of the one-dimensional transverse-field Ising model.

Radiation-induced changes in electrical conductivity and structure of BaPbO3 after γ-irradiation

NASA Astrophysics Data System (ADS)

Shan, Qing; Cai, Pingkun; Zhang, Xinlei; Li, Jiatong; Chu, Shengnan; Jia, Wenbao

2015-11-01

Several barium plumbate (BaPbO3) solid samples, made from PbO and BaCO3 powder by chemistry liquid-phase coprecipitation, were investigated before and after γ-irradiation. The solid samples were irradiated by a 60Co γ-irradiation source whose dose rate is about 0.7 kGy per hour. The irradiation times were 0, 72, 144, 216, 288 and 360 h. Then, the four-probe method, X-ray diffraction (XRD), scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS) were used to indicate the changes in electrical conductivity and microstructure of BaPbO3 after γ-irradiation. The XRD results indicated that the content of PbO was reduced as the irradiation dose was increased and eventually vanished from the surface of samples. However, there was no new obvious substance phase found from the XRD atlas. It seems that the PbO transformed into nearly amorphous Pb5O8. The conjecture could be proved by the results of annealing experiment and SEM. The XPS results seem to show that the microstructure of BaPbO3 was slightly changed.

"Fuzziness" in the celular interactome: a historical perspective.

PubMed

Welch, G Rickey

2012-01-01

Some historical background is given for appreciating the impact of the empirical construct known as the cellular protein-protein interactome, which is a seemingly de novo entity that has arisen of late within the context of postgenomic systems biology. The approach here builds on a generalized principle of "fuzziness" in protein behavior, proposed by Tompa and Fuxreiter.(1) Recent controversies in the analysis and interpretation of the interactome studies are rationalized historically under the auspices of this concept. There is an extensive literature on protein-protein interactions, dating to the mid-1900s, which may help clarify the "fuzziness" in the interactome picture and, also, provide a basis for understanding the physiological importance of protein-protein interactions in vivo.

Climate Prediction Center - Stratosphere: Stratosphere-Troposphere

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Wave 2 Wave 3 - NH EQ SH NH EQ SH NH EQ SH NH EQ SH NH SH NH SH NH SH NH SH Annual N E S N E S N E S N E S N S N S N S N S JFM N E S N E S N E S N E S N S N S N S N S AMJ N E S N E S N E S N E S N S N S N S N S JAS N E S N E S N E S N E S N S N S N S N S OND N E S N E S N E S N E S N S N S N S N S Past

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Conacyt

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Organismos de Inspección Organismos de Certificación de personas Calidad Acreditación ¿Que es la : Estructuración de la Evaluación de la Conformidad 1.2: Fortalecimiento y articulación de las instituciones Componente 2: Fortalecimiento del Sistema Nacional de Innovación 6: Incorporación de la Innovación en la

Berkeley Lab - Materials Sciences Division

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2018 [PDF] October 2017 [PDF] July 2017 [PDF] April 2017 [PDF] January 2017 [PDF] October 2016 [PDF ] July 2016 [PDF] April 2016 [PDF] January 2016 [PDF] October 2015 [PDF] March 2015 [PDF] December 2014 [PDF] April 2014 [PDF] February 2014 [PDF] September 2013 [PDF] March 2013 [PDF] October, 2012 [PDF

--No Title--

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ACHP | Case Digest - Protecting Historic Properties: Section 106 in Action

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Digest index. Previous issues: Summer 2012 (PDF) Spring 2012 (PDF) Winter 2012 (PDF) Fall 2011 (PDF ) Summer 2011 (PDF) Spring 2011 (PDF) Winter 2011 (PDF) Fall 2010 (PDF) Summer 2010 (PDF) Winter 2010 (PDF ) Fall 2009 (PDF) Summer 2009 (PDF) Spring 2009 (PDF) Winter 2009 (PDF) Fall 2008 (PDF) Summer 2008 (PDF

[Surface aspect of fixed restaurations and parodontal influences].

PubMed

Ciocan-Pendefunda, Alice-Arina; Forna, Norina Consuela

2012-01-01

Any new class of materials requires a new cutting technology which, unless complied with properly, may negatively impact on the advantages and performance of the material. The modifications appeared as a result of the technological processes in the structure or surface aspect of the materials not only affects the mechanical resistance of the restorations but also casts doubts on their biological qualities. This study evaluates the impact of biomaterials involved in fixed restorations on the periodontal architecture, bearing extremely important connotations in the long run. The "in vitro" testing was conducted on culture cells for the cytotoxic effect of certain restorative materials--metallic alloys used in prosthetic restorations, composite materials, in collaboration with the Virology Laboratory of the Public Health Institute.The tested materials were metallic alloys, composite materials and acrylic resins used for the construction of standard sized plates (out of each material) in order to avoid the differences that might arise from the technological process. Artificial saliva processed to reach a pH = 7 was prepared in the Biophysics Laboratory of UMF Iasi. Material samples and the saliva inoculated with these were tested. -p. The cytotoxic effect of the tested materials on the celular cultures takes on extremely diverse forms, from discrete morphological modifications of the cells with regard to the size, shape, internal structure (for the noble and semi-noble alloys) up to the partial stripping-off of the celular film, the modification of density and coloration. In the case of the witness of non-inoculated culture, the testing results showed the presence of a continuous film, with cells having the same size, transparency and colouring, with an unaltered polyhedral contour, with visible nuclei, an image also kept in the case of the saliva witness. The involvement of restaurative materials in triggering, maintaining and aggravating a periodontal pathology indicates the capital role played by the dentist in the identications of lesions during measures by avoiding or excluding etiological agents before an obvious lesions occurs in the process of active dispensarization.

NOAA Weather Radio

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recepción confiable en algunas localidades debido a bloqueos de las señales y/o distancia excesiva de la mensajes NOTA: Servicio de NWR para un condado depende de recepción confiable la señal, la cual cobertura de NWR, o cobertura parcial, serán indicados. Algunos condados o partes de condados

Periodic Table of Elements: Los Alamos National Laboratory

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, Communication Specialist talks about the Periodic Table of Elements 7/17/17 Back to Elements List Fermium is process, but the identification of Pu-244 raised the possibility that still more neutrons could have been discovery of the new elements, and the new data on neutron capture, was kept secret on the orders of the U.S

Staff - Trystan M. Herriott | Alaska Division of Geological & Geophysical

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sandstone interval in outcrop of the Tonnie Siltstone Member, Chinitna Formation, lower Cook Inlet, south Paveloff Siltstone Member of the Chinitna Formation: Exploring the potential role of facies variations in member of the Upper Jurassic Naknek Formation, northern Chinitna Bay, Alaska, in Wartes, M.A., ed

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Report FY 2016 Annual Report FY 2015 Annual Report FY 2014 Annual Report FY 2013 Annual Report FY 2012 Annual Report FY 2011 Annual Report FY 2010 Annual Report FY 2009 Annual Report FY 2008 Annual Report FY 2007 Annual Report FY 2006 Annual Report FY 2005 Annual Report FY 2004 Final Report FY 2003 Final

Staff - Nina T. Harun | Alaska Division of Geological & Geophysical Surveys

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mapping of the Upper Jurassic Naknek Formation in a footwall syncline associated with the Bruin Bay fault Ivishak Formation in the northeastern Brooks Range, Alaska: University of Alaska Fairbanks, M.S. thesis Triassic Ivishak Formation in the Sadlerochit Mountains, northeastern Alaska: Alaska Division of Geological

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Fermilab Today Related Content Subscribe | Contact Fermilab Today | Archive | Classifieds Search Experiment Profiles Current Archive Current Fermilab Today Archive of 2015 Archive of 2014 Archive of 2013 Archive of 2012 Archive of 2011 Archive of 2010 Archive of 2009 Archive of 2008 Archive of 2007 Archive of

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Conversion Factors Periodic Table of the Elements Chart of the Nuclides Map of the Nuclides Computer Index of (Atominstitut der Österreichischen Universitäten) Neutron Activation Table of Elements Neutron Scattering at neutronsources.org. The information contained here in the Neutron Scattering Web has been

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service at the U.S. Army Corps of Engineers, DeLisa L. Kviz currently works as chief ... Profile photo of of service with the Department of the Navy, including over 11 years ... Profile photo of Ivan E is a technical information specialist in the Analysis and ... Profile photo of Chad A. Molenhour

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Owen Barwell - Chief Financial Officer Owen Barwell - Chief Financial Officer A photo of Owen , analysis, and management. He previously served as the Acting Chief Financial Officer and Deputy Chief Financial Officer of the U.S. Department of Energy (DOE), where he was directly responsible for DOE's

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. ___________________________________________________________________________________ What do the different colors on the map of the CMB represent? Although the temperature of the CMB is The most conclusive and carefully examined evidence for The Big Bang is the existence of an isotropic radiation bath that permeates the entirety of the universe known as the cosmic microwave

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NOAA Weather Radio

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Programación Español Listado de estación Explicacion de SAME Coverage Station Listing County Listing Condado de cobertura Listado de estación Lista de Emisora y Cobertura Acerca de NWR ESTACIONES NACIONAL Información General Información Para el consumidor receptor NWR Recepción Explicacion de NWR SAME

NOAA Weather Radio - Reception Problems

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Programación Español Listado de estación Explicacion de SAME Coverage Station Listing County Listing ±ol Condado de cobertura Listado de estación Lista de Emisora y Cobertura Acerca de NWR ESTACIONES NACIONAL Información General Información Para el consumidor receptor NWR Recepción Explicacion de NWR

NOAA Weather Radio

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Programación Español Listado de estación Explicacion de SAME Coverage Station Listing County Listing interés abajo de dentro de la lista entera del archivo nacional Transmisores de NWR en los Estados ±ol Condado de cobertura Listado de estación Lista de Emisora y Cobertura Acerca de NWR ESTACIONES

AF family shares experience with child's autism > U.S. Air Force >

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X-Ray Data Booklet

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X-RAY DATA BOOKLET Center for X-ray Optics and Advanced Light Source Lawrence Berkeley National Laboratory Introduction X-Ray Properties of Elements Electron Binding Energies X-Ray Energy Emission Energies Table of X-Ray Properties Synchrotron Radiation Characteristics of Synchrotron Radiation History of X

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Pesticides and Human Health Pesticide Incidents What Happens to Pesticides Released into the Environment Pesticides and Human Health Pesticide Incidents What Happens to Pesticides Released into the Environment ; Environment Human Health Animal Health Safe Use Practices Food Safety Environment Air Water Soil Wildlife

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all forces show that they are the same basic force, and have frozen out to different forces in the . What do the different colors on the map of the CMB represent? Although the temperature of the CMB is Implications of the COBE DMR Map of the Early Universe What COBE DMR saw: The COBE DMR (Cosmic

What about using pesticides if I am pregnant or have a baby?

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? Related Topics: Pesticides and Human Health Pesticides and Pregnancy Pesticides and Children Understanding @ace.orst.edu. Last updated January 27, 2016 Related Topics: Pesticides and Human Health Pesticides and ; Environment Human Health Animal Health Safe Use Practices Food Safety Environment Air Water Soil Wildlife

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and geophysical framework of Alaska as it pertains to the mineral resources of the state. Summary maps and reports illustrate the geology of the state's prospective mineral terranes and provide data on the location, type, and potential of the state's mineral resources. These data aid in the state's management of

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a.m. a 12:00 p.m. PT, de lunes a viernes A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Índice acuerdo de cooperación entre la Universidad Estatal de Oregón y la Agencia de Protección Ambiental de los Estados Unidos (acuerdo de cooperación # X8-83560101). La información contenida en esta

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Emergencia (EAS) de la Comisión Federal de Comunicaciones, Radio NOAA es una red para todo tipo de peligros . De este modo, es la fuente más comprensiva de información del tiempo y emergencias que està químicos o derramamientos de petróleo). Conocida como "La Voz del Servicio Nacional de Meteorología

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Programación Español Listado de estación Explicacion de SAME Coverage Station Listing County Listing Listado de estación Lista de Emisora y Cobertura Acerca de NWR ESTACIONES NACIONAL Información General Información Para el consumidor receptor NWR Recepción Explicacion de NWR SAME Programación en Español

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investigations of the diatom stratigraphy of Borehole TA8, Portage Alaska: Alaska Division of Geological & Visiting Alaska State Employees DGGS State of Alaska search Alaska Division of Geological & Geophysical DGGS GMC 395 Publication Details Title: Preliminary investigations of the diatom stratigraphy of

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modeled solar data to study the operational impacts of solar on the electric power grid. Solar Power Data need to estimate power production from hypothetical solar power plants. Solar Integration National Dataset (SIND) Toolkit The next generation of modeled solar data with higher temporal and spatial

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³mica (CNEA), a través de la Sección de... EL RA-6, RENOVADO EN EL AÑO DE SU 35º ANIVERSARIO EL RA-6 DIRIGIDAS A DOCENTES REALIZAN EN EL CAB CAPACITACIONES DIRIGIDAS A... La Comisión Nacional de Energía Atà ... RECONOCIMIENTO PARA LA SECCIÓN DE DIVULGACIÓN CIENTÍFICA Y TECNOLÓGICA DEL CAB RECONOCIMIENTO PARA LA SECCIÃ

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para un condado depende de recepción de la seña fiable, que típicamente se extiende en un radio de 40 millas del transmisor, asumiendo terreno plano. Condados sin la cobertura de NWR o cobertura obstáculos de la seña y/o la distancia excesiva del transmisor. Usted puede referirse directamente a

Defense.gov - Special Report - Travels With Gates

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. If you wish to see the latest content, please visit the current version of the site. For persons with look at production of the newest all-terrain vehicles slated for Afghanistan, and praised the modern You have reached a collection of archived material. The content available is no longer being

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investigations in the Brooks Range Foothills and North Slope, Alaska: Alaska Division of Geological & interpretations of the Nanushuk Formation exposed along the Colville River near the confluences with the Awuna and Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska

Periodic Table of Elements: Los Alamos National Laboratory

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, Communication Specialist talks about the Periodic Table of Elements 7/17/17 Back to Elements List Seaborgium is Phone Periodic Table of Elements: LANL Chemistry Division » Periodic Table of Elements Chemistry the Elements Chemical Properties Elements List Periodic Table Download News LANL Biofuels Work

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(6) Freedom of Information Act (29) IT Investment Management (47) Records Management (37 Management and Knowledge Management programs. DON CIO Information About the DON CIO Website Accessibility this website is to facilitate effective information flow about information management/information

Alternative Fuels Data Center: Recursos en español

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colaboración entre el gobierno y la industria patrocinada por el Programa de Tecnologías de Vehículos del enchufables Recursos en la web Use estas recursos para obtener información sobre: Economía de combustible y huella de carbono de su vehículo Cómo aumentar la economía de combustible Importancia de la economía

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¡tico de programación de la Radio del Tiempo de NOAA la capacidad de transmitir en español. Cualquier Programación Español Listado de estación Explicacion de SAME Coverage Station Listing County Listing Search For Go NWS All NOAA Las Políticas de Programación en Español Se le añadió al sistema automÃ

Operating the Western Interconnection with 80%-90% Renewables - Text

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different penetration levels. This chart here shows the left column is the actual penetration of the renewables in all of the different scenarios. The higher base load and the higher VG before curtailment are to a lot of results. This next slide shows the generation by the different types of both renewable

Philip A. Parilla | NREL

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atomic layer deposition for applications. He also manages the majority of X-ray characterization equipment at NREL, specifically X-ray diffraction and X-ray fluorescence instrumentation. Additionally, he for EERE's Hydrogen Storage program. He is also an expert in X-ray diffraction and X-ray fluorescence

Energy Analysis Publications | Energy Analysis | NREL

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Systems Impact Analysis We perform impact analysis to evaluate and understand the impact of markets publications. Featured Publications Complex Systems Analysis Complex systems analysis integrates all aspects of , policies, and financing on technology uptake and the impact of new technologies on markets and policy

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NREL's Advanced Atomic Layer Deposition Enables Lithium-Ion Battery

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Battery Technology News Release: NREL's Advanced Atomic Layer Deposition Enables Lithium-Ion Battery increasingly demanding needs of any battery application. These lithium-ion batteries feature a hybrid solid further customized lithium-ion battery materials for high performance devices by utilizing our patented

Chunmei Ban | NREL

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degradation in silicon nanowires for lithium ion battery," ACS Nano, 2015, 9(5), pp 5559-5566, DOI molecular layer deposited coating on silicon nanoparticles for lithium ion battery anodes," ACS Nano lithium-ion batteries, lithium-air batteries, organic radical batteries, and magnesium-ion batteries. The

Transportation Research News | Transportation News | Transportation

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Engineering has yielded new insights for lithium-ion (Li-ion) battery electrodes at the microstructural level -Phase Stochastics in Lithium-Ion Battery Electrodes" detailing the research and resulting revolutionizes the way lithium-ion (Li-ion) batteries are evaluated so designs can be improved before batteries

DoD ESI

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Information Management, Microsoft Platform Management, Identity & Access Management, Endpoint Systems /2016-24054/category-management). OMB released this IT Success Story for "Information Sharing Management of Common Information Technology: Mobile Devices and Services 7/1/2016 Category Management Policy

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NOAA Weather Radio

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automatizado apoyará la difusión en español. Idioma español de voz sintetizada será proporcionado para algunas oficinas donde el personal permite y los dictados de la población, la radiodifusión española Programación Español Listado de estación Explicacion de SAME Coverage Station Listing County Listing

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para un condado depende de recepción de la seña fiable, que típicamente se extiende en un radio de 40 millas del transmisor, asumiendo terreno plano. Condados sin la cobertura de NWR o cobertura obstáculos de la seña y/o la distancia excesiva del transmisor. Usted puede referirse directamente a

DIY Solar Market Analysis Webinar Series: PVWatts® | State, Local, and

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, and updates the energy prediction algorithms to be in line with the actual performance of modern the latest update." In this webinar, one of the tool's developers explains how the new version of ® Wednesday, July 9, 2014 As part of a Do-It-Yourself Solar Market Analysis summer series, NREL's Solar

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Carlo, F. De Carlo, Francesco De Graef, Marc de Jalon, Garcia De La Rosa, K. de Leon, P.A. Ignacio- de . Degenkolb, E. DeJongh, M. DeLisi, M. Delmont, T. O. DeLuca, C. Demas, N. Demchenko, Y. Demeshko, I. Demiguel , N. Kyrpides, Nikos La Joie, C. Labarta, J. LaBissoniere, D. Lacinski, L. Lacour, S. Laguna, I. Lai

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who have a lot of experience in this area may handle the process on their own while others may decide greatest number of respondents and give the agency the greatest number of options. Solar RFP Elements As to the selection criteria. Sources Solar Powering Your Community: Key Elements of Solar Requests for

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] View Images Details ID: SIL32-035-02 Enlarge Image View Images Details ID: SIL32-038-02 Enlarge Image View Images Details ID: SIL-2004_CT_6_1 Enlarge Image View Images Details ID: SIL32-010-01 Enlarge Image View Images Details ID: SIL32-013-05 Enlarge Image View Images Details ID: SIL32-014-02 Enlarge

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appreciation of this invaluable natural resource. My image My image My image My image My image Discover: - over difference in IRL water quality Check Out: - the IRL Photo Gallery - the IRL Species Image Collection Downloads: - Species Database - IRL Species Bibliography My image My image My image My image My image EOL

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Compcon '95 Paper

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has the ability to view various parts of a frog from many different angles, and with the different here - the Virtual Dissection Kit - has been accessed by 50,000 different sites, in over 50 different form document that is a translation of the user interface into a different language (the Virtual Frog

Welcome - TampaBay.WaterAtlas.org

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An edition of: WaterAtlas.orgPresented By: USF Water Institute Choose a Water Atlas Charlotte Harbor NEP Water Atlas Hillsborough County Water Atlas Lake County Water Atlas Manatee County Water Atlas Orange County Water Atlas Pinellas County Water Atlas Polk County Water Atlas Sarasota County Water Atlas

Publications - GMC 430 | Alaska Division of Geological & Geophysical

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: Formation hardness of Hemlock Formation cores after immersion in water and oil based fracturing fluids; and mechanics: Formation hardness of Hemlock Formation cores after immersion in water and oil based fracturing Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska

NOAA Photo Library

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- nssl0057 Early stage of tornado formation. Photo #1 of a series of classic photographs of this tornado Available Publication of the U.S. Department of Commerce, National Oceanic & Atmospheric Adminstration NOAA Photo Library Banner Takes you to the Top Page Takes you to the About this Site page. Takes

Publications - GMC 303 | Alaska Division of Geological & Geophysical

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DGGS GMC 303 Publication Details Title: The facies of the Ivishak Formation from conventional core , The facies of the Ivishak Formation from conventional core descriptions, electric logs, and Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska

NCEP Operational HWRF Forecasting System

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2010 Basin: North Atlantic Eastern North Pacific Central North Pacific Western North Pacific North ALBERTO01L North Atlantic: (1) active ALBERTO01L Eastern North Pacific: (0) active Central North Pacific: (0 ) active Western North Pacific: (0) active North Indian Ocean: (0) active Southern Hemisphere: (0) active Â

Wind Turbine Control Systems | Wind | NREL

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Turbine Control Systems Wind Turbine Control Systems Advanced wind turbine controls can reduce the loads on wind turbine components while capturing more wind energy and converting it into electricity turbines. A photo of a wind turbine against blue sky with white blades on their sides in the foreground

Wind Energy Modeling and Simulation | Wind | NREL

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Wind Energy Modeling and Simulation Wind Turbine Modeling and Simulation Wind turbines are unique wind turbines. It enables the analysis of a range of wind turbine configurations, including: Two- or (SOWFA) employs computational fluid dynamics to allow users to investigate wind turbine and wind power

Systems Engineering Workshop 2017 | Wind | NREL

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Energy for Wind Systems Today Cost and Value of Wind Power-Implications of Wind Turbine Design, János Aaron Smith, PPI Session II: Uncertainty Impacts on Wind Turbine Design and Performance Mitigation of Wind Turbine Design Load Uncertainties, Anand Natarajan, DTU Wind Energy Uncertainty in the Wind

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veggies? Federal Pesticide Regulation Pesticides and Human Health Regulating Organic Food Production fruit and veggies? Federal Pesticide Regulation Pesticides and Human Health Regulating Organic Food ; Environment Human Health Animal Health Safe Use Practices Food Safety Environment Air Water Soil Wildlife

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-- OAS Intranet -- Sunday 27 May 2018 Approved Program-Budget 2018 Proposed Program-Budget 2018 Approved Program-Budget 2017 Proposed Program-Budget 2017 Approved Program-Budget 2016 Proposed Program -Budget 2016 Approved Program-Budget 2015 Proposed Program-Budget 2015 Approved Program-Budget 2014

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DIFFERENT BETWEEN THE 12-KM NAM PARENT DOMAIN AND THE NAM CONUS NEST? (04 Nov 2011, updated 13 April 2017 . Back to Table of Contents WHY IS THE QPF DIFFERENT BETWEEN THE 12-KM NAM PARENT DOMAIN AND THE NAM different QPF fields between the 12km NAM parent and the NAM nests. 13 April 2017 update: In the 12 August

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Programación Español Listado de estación Explicacion de SAME Coverage Station Listing County Listing Transmitter Outages FAQ NWR - Special Needs ESPAÑOL Español Condado de cobertura Listado de estación Lista de Emisora y Cobertura Acerca de NWR ESTACIONES NACIONAL Información General Información Para el

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Programación Español Listado de estación Explicacion de SAME Coverage Station Listing County Listing Transmitter Outages FAQ NWR - Special Needs ESPAÑOL Español Condado de cobertura Listado de estación Lista de Emisora y Cobertura Acerca de NWR ESTACIONES NACIONAL Información General Información Para el

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Programación Español Listado de estación Explicacion de SAME Coverage Station Listing County Listing - Special Needs ESPAÑOL Español Condado de cobertura Listado de estación Lista de Emisora y Cobertura Acerca de NWR ESTACIONES NACIONAL Información General Información Para el consumidor receptor NWR

The Sky This Week, 2016 April 26 - May 3 - Naval Oceanography Portal

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the week coursing through the summer Milky Way, skirting the southern reaches of the ecliptic in the morning sky. Last Quarter occurs on the 29th at 11:29 pm Eastern Daylight Time. As Luna wanes through her begins on the 29th and lasts through May 8th. This month's target constellation is Leo, the Lion, which

The Evolving Search for the Nature of Dark Energy | Berkeley Lab

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percent of its contents is ordinary matter, 24 percent is dark matter, and all the rest is dark energy ordinary matter, 24 percent is dark matter, and all the rest is dark energy - unless there's a flaw in our Universe, and it's pushing all the rest - ordinary matter and dark matter - farther apart at an ever

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Defense.gov - Special Report - Progress Report: Department of Defense

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the need to re-shape and re-balance the direction of the Department and an increasingly challenging capabilities, requirements, risks and needs for the purpose of shifting the Department toward a different , the Landing Platform Dock ship and Mobile Landing Platform ship; and Completing production of the C-17

Publications - PIR 2015-5 | Alaska Division of Geological & Geophysical

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superposition of strike-slip and reverse-slip faults in the Bruin Bay fault system, Ursus Head, lower Cook Inlet , Preliminary investigation of fracture populations in Mesozoic strata of the Cook Inlet forearc basin: Iniskin observations: Continued facies analysis of the Lower Jurassic Talkeetna Formation, north Chinitna Bay, Alaska

Publications - GMC 329 | Alaska Division of Geological & Geophysical

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Bee Creek 1976 holes of Chignik C2 Quadrangle (B-1, 265'; B-2, 500'; B-3, 500'; B-4, 300' and B-5, 300 the Bee Creek 1976 holes of Chignik C2 Quadrangle (B-1, 265'; B-2, 500'; B-3, 500'; B-4, 300' and B-5

NOAA Weather Radio

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Search For Go NWS All NOAA NWR Recepción El área de la recepción nominal para un receptor de Radio cosas afectan la recepción de señas de la radio. Por ejemplo, las extensiones grandes de agua de sal de NWR. Siga leyendo si está dentro del área pero tiene dificultad con recepción. Su seña de la

Research | Photovoltaic Research | NREL

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-V cells Hybrid tandems Polycrystalline Thin-Film PV CdTe solar cells CIGS solar cells Perovskites and Organic PV Perovskite solar cells Organic PV solar cells Advanced Materials, Devices, and Science Interfacial and Surface Science Reliability and Engineering Real-Time PV and Solar Resource

Chioke Harris | NREL

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transfer and materials science to the development of high-performance building components. He is member of the Building Energy Science Group, his research focuses on the application of fundamental heat particularly interested in the development of novel opaque insulation and window frame materials using nano

Water Power Research | Water Power | NREL

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Water Power Research Water Power Research NREL conducts water power research; develops design tools Columbia River, Washington. Hydropower Research Hydropower technologies convert the energy of water moving ; and evaluates, validates, and supports the demonstration of innovative water power technologies. Photo

Mengjin Yang | NREL

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on the formation of higher efficiency formamidinium lead triiodide-based solar cells," Chem -0003-2019-4298 Dr. Mengjin Yang received his Ph.D. in Materials Science from the University of Pittsburgh, where he investigated nanomaterials for solar energy conversion under the supervision of Prof

Geothermal Energy | Climate Neutral Research Campuses | NREL

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Geothermal Energy Geothermal Energy Research campuses can take advantage of geothermal resources sections that describe how examining geothermal energy may fit into your climate action plans. Campus Options Considerations Sample Project Related Links Campus Geothermal Energy Options Campuses can use

Battery Control Algorithms | Transportation Research | NREL

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publications. Accounting for Lithium-Ion Battery Degradation in Electric Vehicle Charging Optimization Advanced Reformulation of Lithium-Ion Battery Models for Enabling Electric Transportation Fail-Safe Design for Large Capacity Lithium-Ion Battery Systems Contact Ying Shi Email | 303-275-4240

NREL: News - Winner of Solar Decathlon to be Announced

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Winner of Solar Decathlon to be Announced Friday, October 4, 2002 Washington, D.C.- The winner of National Gallery of Art Note: All houses competing in the Solar Decathlon will be open to the public from 9 the U.S. Department of Energy's first Solar Decathlon will be announced noon, Saturday, October 6 in

Site Description | CTIO

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Preserving the Dark Skies La Oficina de Protección de la Calidad del Cielo del Norte de Chile - OPCC Light view Cerro Pachón CTIO/AURA La Serena Facilities The "El Totoral" Reserve, Cerro Tololo and . back to top Sky Brightness over Cerro Pachón and Cerro Tololo Light pollution from nearby cities (La

AF Week in Photos > U.S. Air Force > Article Display

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Professors Senior Mentor Biographies Fact Sheets Commander's Call Topics CCT Archive CSAF Reading List 2017 CSAF Reading List 2016 CSAF Reading List 2015 CSAF Reading List 2014 CSAF Reading List 2013 CSAF Reading List 2012 CSAF Reading List 2011 CSAF Reading List 2010 CSAF Reading List 2009 CSAF Reading List

National Wind Technology Center | NREL

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. Wind Energy Research Wind turbine blade Wind energy research at the NWTC allows for validation and verification of large and small components and wind turbine systems. Photo by Dennis Schroeder / NREL 40935 Wind energy research at the NWTC has pioneered wind turbine components, systems, and modeling methods

Astronomical Information Center - Naval Oceanography Portal

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section Advanced Search... Sections Home Time Earth Orientation Astronomy Meteorology Oceanography Ice You the Moon Illuminated Time Universal Time and Greenwich Mean Time What is Terrestrial Time? Computing Greenwich Apparent Sidereal Time What are the U.S. Time Zones? World Time Zone Map When Does Daylight Time

Alternative Fuels Data Center: Data Downloads

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Data Downloads to someone by E-mail Share Alternative Fuels Data Center: Data Downloads on Facebook Tweet about Alternative Fuels Data Center: Data Downloads on Twitter Bookmark Alternative Fuels Data Center: Data Downloads on Google Bookmark Alternative Fuels Data Center: Data Downloads on Delicious Rank

Home Page, Alaska Department of Fish and Game

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Orders Media/Press Releases Hot Topics & Issues Board of Fisheries and Game: Actions & Activities Habitat Special Areas Fish Habitat Boards Board of Game Board of Fisheries The Joint Board Commissioner Maps & Area Information File Hunt Report Trapping Boards Board of Fisheries Board of Game

CAEBAT Model Featured on American Chemical Society Journal Tenth

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University's School of Mechanical Engineering has yielded new insights for lithium-ion (Li-ion) battery corresponding article, "Secondary-Phase Stochastics in Lithium-Ion Battery Electrodes" detailing the microstructural modifications can greatly improve overall Li-ion battery performance. The value of this work is

Energy Storage News | Transportation | Transportation Research | NREL

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NREL/Purdue team's corresponding article, "Secondary-Phase Stochastics in Lithium-Ion Battery by NREL and NASA, the Battery ISC Device revolutionizes the way lithium-ion (Li-ion) batteries are collaboration with Purdue University's School of Mechanical Engineering has yielded new insights for lithium-ion

News and Feature Stories | NREL

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insights for lithium-ion (Li-ion) battery electrodes at the microstructural level, that can lead to Lithium-Ion Battery Electrodes" detailing the research and resulting discoveries, is showcased inside 19th annual Middle School Electric Car Competition, where students raced solar and lithium-ion powered

Publications - GMC 73 | Alaska Division of Geological & Geophysical Surveys

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following seven NPRA wells: Fish Creek test well #1; Oumalik test well #1; Peard test well #1; Tunalik #1 ; Umiat test well #11; Wolf Creek test well #3; and Walapka test well #1 Authors: Unknown Publication Date wells: Fish Creek test well #1; Oumalik test well #1; Peard test well #1; Tunalik #1; Umiat test well

Nolan Wilson | NREL

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Nolan Wilson Nolan Wilson Postdoctoral Researcher-Chemical Engineering Nolan.Wilson@nrel.gov | 303 Ph.D., Chemical and Biomolecular Engineering, Clemson University, 2014 M.S., Chemical and Biomolecular Engineering, Clemson University, 2012 B.S., Chemical Engineering, Auburn University, 2007 Professional

GISD

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information on the ecology of the species, its impacts and management, a comprehensive bibliography and a list ) General Impact information Management information Distribution The Distribution page presents the global page collates management information from the profile narrative page plus location-specific management

Staff - Trent D. Hubbard | Alaska Division of Geological & Geophysical

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, R.P., Darrow, M.M., and Hubbard, T.D., 2015, Influence of catchment properties on stability of frozen : Evaluating geologic hazards and the distribution and character of geologic materials on Alaska's North Slope Professor, Department of Biology and Earth Sciences, University of Central Missouri, Warrensburg, MO 2003

Standard Terms and Conditions | NREL

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and Technical Services Subcontracts, Cost-Type (1) Cost Sharing (2) Cost Reimbursement (3) Cost Plus Than Foreign) (1) Cost Sharing (2) Cost Reimbursement (2) Cost Plus Fixed Fee. Appendix B-10 (12/15/16 /15/16) Standard Terms and Conditions for Travel Requirements (1) Cost Sharing (2) Cost Reimbursement

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lower sandstone member of the Upper Jurassic Naknek Formation, northern Chinitna Bay, Alaska, in Wartes member of the Upper Jurassic Naknek Formation, northern Chinitna Bay, Alaska Authors: Wartes, M.A Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska

Publications - PIR 2015-5-4 | Alaska Division of Geological & Geophysical

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facies analysis of the Lower Jurassic Talkeetna Formation, north Chinitna Bay, Alaska, in Wartes, M.A of the Lower Jurassic Talkeetna Formation, north Chinitna Bay, Alaska Authors: Bull, K.F. Publication Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska

Presentations - Herriott, T.M. and others, 2011 | Alaska Division of

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Details Title: Detailed geologic mapping and overview of structural and stratigraphic studies in the east Resident Business in Alaska Visiting Alaska State Employees DGGS State of Alaska search Alaska Division of in the east-central North Slope foothills, Alaska (poster): 3P Arctic, The Polar Petroleum Potential

Idaho Water Resources Research Institute

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Students Parents Alumni Faculty & Staff students walk on University of Idaho campus Visit U of I Learn Visit Students on Campus Title IX Helping to ensure U of I is a safe and engaging place for students to Diversity Athletics Events News Directory A - Z Prospective Students Current Students Parents Alumni Faculty

First International Workshop on Grid Simulator Testing of Wind Turbine

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of Wind Turbine Drivetrains First International Workshop on Grid Simulator Testing of Wind Turbine Wind Turbine Drivetrains June 13-14, 2013, at the National Wind Technology Center near Boulder apparatuses involved in grid compliance testing of utility-scale wind turbine generators. This includes both

Community Solar | State, Local, and Tribal Governments | NREL

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distributed generation owners for the power that their systems contribute to the grid. Community solar generation from an offsite solar system. Some form of VNM must exist for community solar to work properly so Electric Power Association. Community Solar: NREL's Working Group on Community Solar Gardens meeting

NREL Projects Awarded More Than $3 Million to Advance Novel Solar

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in Grid Operations," evaluating a research solution to better integrate solar power generation funding program, which advances state-of-the-art techniques for predicting solar power generation to Office to advance predictive modeling of solar power as part of its Solar Forecasting 2 funding program

Scanning Defect Mapping | Photovoltaic Research | NREL

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SDMS moves the treated wafer across a stationary laser beam and maps the defects for each location on the wafer. The amount of light reflected from an area is proportional to the dislocation density for that area and provides a direct statistical count of the number of dislocations. PV Research Other

Climate Prediction Center - Seasonal Outlook

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ACCOUNT FOR THE LATEST DYNAMICAL AND STATISTICAL GUIDANCE. LONG TERM TRENDS ACCOUNT FOR THE FAMILIAR U Time. Please consult the schedule of 30 & 90-day outlooks for exact release dates. Text Discussions COLLEGE PARK MD 830 AM EDT THU MAY 17 2018 SUMMARY OF THE OUTLOOK FOR NON-TECHNICAL USERS ENSO NEUTRAL

Project Development Model | Integrated Energy Solutions | NREL

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. The five elements of project fundamentals are: Baseline: Analyze the current situation for the site . The two-phase iterative model includes elements in project fundamentals and project development based State and Local Energy Data (SLED) tool, developed by NREL for the U.S. Department of Energy, to get

Rare Earth Elements | Alaska Division of Geological & Geophysical Surveys

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- Mineral Resources main content Rare Earth Elements Rare earth elements and the supply and demand of these deposits containing rare earth elements to meet the perceived future demand. High prices for rare earth earth element occurrences in the DGGS publications catalog. Department of Natural Resources, Division of

John B. Goodenough, Cathode Materials, and Rechargeable Lithium-ion

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cathode materials for the lithium-ion rechargeable battery that is ubiquitous in today’s portable conductors has enabled realization of the rechargeable lithium-ion battery used in cellular telephones and Goodenough, the rechargeable lithium ion battery, and related research is available in electronic documents

La Aventura de las Partículas

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ciertas formas fundamentales. Explore las siguientes rutas que le explicarán la materia del universo! La grande del logo de la Ruta SM) La ruta de las evidencias experimentales : aprenda como los físicos diseà explicación de los "por qué" de las interacciones físicas hay todavía muchos misterios por

NOAA Weather Radio - Información General

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logo La Radio de Canada NWR receiver logo recepción COVERAGE County Coverage Listings State Coverage Programación Español Listado de estación Explicacion de SAME Coverage Station Listing County Listing Search For Go NWS All NOAA Información General NWR receiver logo Información de Fondo (incluyendo

Fermilab Today

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Search GO Special Result of the Week Toward a high-intensity muon source Impact of a single pulse of 12 x moment of impact (T=0); b) 9ms after impact; c) 15ms after impact. To solve the mysteries of nature 1012 protons at 14 GeV on a 1cm-wide jet of mercury flowing at 15m/s in a 10T solenoid field: a) at the

Xiaowen Chen | NREL

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Xiaowen Chen Photo of Xiaowen Chen Xiaowen Chen Researcher IV-Chemical Engineering Xiaowen.Chen Education Ph.D., Chemical Engineering, University of Maine, 2009 M.S., Chemical Engineering, University of Maine, 2005 B.S., Chemical Engineering in Polymer Science and Technology, Nanjing University of Science

Sandia National Laboratories: Research: R&D 100 Awards

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high radiation environments such as space. Watch the video. control system for active damping of inter first commercially available, high-voltage, high-frequency, high-current, high-temperature, single-chip Materials Science Nanodevices & Microsystems Radiation Effects & High Energy Density Science

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logo and clouds NSSL is one of the National Oceanic and Atmospheric Administration's internationally of tornado Tornadoes picture of vintage doppler radar Instruments picture of clouds Sky Scenes -known Environmental Research Laboratories, leading the way in investigations of all aspects of severe

Batavia Boy Scouts | News

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Financial Officer Finance Section Office of the Chief Operating Officer Facilities Engineering Services Accelerator Division Accelerator Physics Center Office of the Chief Safety Officer Environment, Safety, Health and Quality Section Office of the Chief Project Officer Office of Project Support Services Office of

Tuberculosis Reports - UDOH-EPI

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Tuberculosis Tuberculosis Reports Tuberculosis Reports Tuberculosis Utah Reports Tuberculosis in Utah - Five (IBIS-PH) Tuberculosis 2015 Monthy Reports January February March April May June Tuberculosis National Reports National TB Data and Statistics Tuberculosis Global Reports TB Incidence Map by country TB

Eric O'Shaughnessy | NREL

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of residential solar PV markets. Eric leads the lab's solar data partnerships program. Eric's current green power market research. Research Interests Economic analysis, econometrics, distributed solar PV . Ardani, R. Margolis. 2018. Solar plus: Optimization of distributed solar PV through battery storage and

Photovoltaics | Climate Neutral Research Campuses | NREL

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Photovoltaics Photovoltaics Solar photovoltaics (PV) is a mature, commercially available technology arrays. Campus Solar Energy Options A PV system requires periodic maintenance, but upkeep averages two to undertaking a solar energy assessment or PV installation. Solar Energy Resources Solar energy production

University of Maryland MRSEC - Education: Resources

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. University of Maryland Materials Research Science and Engineering Center Home About Us Leadership Moments in MSE The Materials Science and Engineering Career Resources Center Materials Research Society Central Super Science Fair Projects: Ideas, Topics, & Experiments All Science Fair Projects Science

Pesticide Information for Veterinarians

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; Environment Human Health Animal Health Safe Use Practices Food Safety Environment Air Water Soil Wildlife Ingredients Low-Risk Pesticides Organic Pesticide Ingredients Pesticide Incidents Human Exposure Pet Exposure Home Page Pesticide Health and Safety Information Pesticides and Animal Health Pesticide Information

Pesticide Regulations

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costs and benefits of pesticides to society. They try to identify the potential risks on human health ; Environment Human Health Animal Health Safe Use Practices Food Safety Environment Air Water Soil Wildlife Ingredients Low-Risk Pesticides Organic Pesticide Ingredients Pesticide Incidents Human Exposure Pet Exposure

A to Z Index of Topics

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; Environment Human Health Animal Health Safe Use Practices Food Safety Environment Air Water Soil Wildlife Ingredients Low-Risk Pesticides Organic Pesticide Ingredients Pesticide Incidents Human Exposure Pet Exposure Health and Pesticides Animal Health Care Provider Information Animal Incident Reporting Annual Reports

Council on Tall Buildings and Urban Habitat

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Publications CTBUH Journal Awards Books Technical Guides Research Reports Other Books IJHRB Research Journal TBUH Chinese Journal Virtual Research Journal Conference Publications Posters Awards Global Awards Council on Tall Buildings and Urban Habitat About CTBUH Organization & People Membership

Home | Departamento de Salud de Puerto Rico

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Publicaciones Registros Suicidio Tuberculosis Centro de Aprendizaje Virtual sobre temas de Preparación en Salud Tuberculosis Centro de Aprendizaje Virtual sobre temas de Preparación en Salud Pública Informe de Casos de Departamento de Salud Search... Search It looks like your browser does not have JavaScript enabled

The Evolving Market Structure of the U.S. Residential Solar PV Installation

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Solar PV Installation Industry, 2000-2016 The Evolving Market Structure of the U.S. Residential Solar PV residential solar photovoltaic (PV) system and that the residential PV installation industry has become more concentrated over time. From 2000 to 2016, the U.S. residential solar photovoltaic (PV) installation industry

DefenseLink.mil - Pentagon Memorial Dedication

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Dept. photo by Army Staff Sgt. Michael J. Carden An entry stone at the Pentagon Memorial lists the their lives during the Sept. 11 terrorist attack on the Pentagon. Photo by Staff Sgt. Michael J. Carden Staff Sgt. Michael J. Carden A member of The United States Air Force Band practices before the start of

O, Canada: NREL Partnership Produces New Take on Alternative Fueling

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Fueling Station Locator. The tool, which is part of a significant investment by the Canadian government to to develop a modern, bilingual web tool that makes it easier for drivers of alternative fuel vehicles Locator Tool March 5, 2018 Word of the National Renewable Energy Laboratory's (NREL) deep transportation

Publications - PIR 2015-5-9 | Alaska Division of Geological & Geophysical

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content DGGS PIR 2015-5-9 Publication Details Title: Evidence of a submarine canyon in the Snug Harbor ., Decker, P.L., and Wartes, M.A., 2015, Evidence of a submarine canyon in the Snug Harbor Siltstone and Pomeroy Arkose Members, Naknek Formation, south-central Alaska: Implications for the distribution of

Visualization and Analytics Software Tools for Peregrine System |

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R is a language and environment for statistical computing and graphics. Go to the R web site for System Visualization and Analytics Software Tools for Peregrine System Learn about the available visualization for OpenGL-based applications. For more information, please go to the FastX page. ParaView An open

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boundary layer WDIR analysis Wind Direction (from which blowing) [degtrue] 013 planetary boundary layer WIND analysis Wind Speed [m/s] 014 planetary boundary layer RH analysis Relative Humidity [%] 015 planetary boundary layer DIST analysis Geometric Height [m] 016 surface 4LFTX analysis Best (4 layer) Lifted

John Lewis | NREL

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Lewis John Lewis John Lewis Researcher IV-Chemical Engineering John.Lewis@nrel.gov | 303-275-3021 Education Ph.D. Chemical Engineering, California Institute of Technology, Pasadena, CA, 1996 M.S. Chemical Engineering, California Institute of Technology, Pasadena, CA, 1993 B.S. Chemical Engineering, Texas A&M

Buy or sell used musical instruments | News

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Financial Officer Finance Section Office of the Chief Operating Officer Facilities Engineering Services Accelerator Division Accelerator Physics Center Office of the Chief Safety Officer Environment, Safety, Health and Quality Section Office of the Chief Project Officer Office of Project Support Services Office of

David Toback re-elected CDF co-spokesperson | News

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Financial Officer Finance Section Office of the Chief Operating Officer Facilities Engineering Services Accelerator Division Accelerator Physics Center Office of the Chief Safety Officer Environment, Safety, Health and Quality Section Office of the Chief Project Officer Office of Project Support Services Office of

MMAB Mission Statement

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services. Marine Modeling and Analysis Branch Logo Click here to go to the EMC/MMAB homepage MMAB Mission Statement The Marine Modeling and Analysis Branch is part of the Environmental Modeling Center, which is Environmental Prediction Environmental Modeling Center Marine Modeling and Analysis Branch 5830 University

Materials and Devices | Photovoltaic Research | NREL

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Polycrystalline Thin-Film PV Cadmium telluride (CdTe) solar cells Copper indium gallium diselenide (CIGS) solar cells Perovskite and Organic PV Perovskite solar cells Perovskite Patent Portfolio Organic PV (OPV ) solar cells Advanced Materials, Devices, and Concepts We explore new PV materials using high-throughput

Silicon Materials and Devices R&D | Photovoltaic Research | NREL

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" and "Si-based Tandem Solar Cells"), Next Generation Photovoltaics (NextGen PV III), and devices, especially for photovoltaic (PV) cell applications. PV Research Other Materials & Devices pages: High-Efficiency Crystalline PV Polycrystalline Thin-Film PV Perovskite and Organic PV Advanced PV

Water Resource Sustainability Conference 2015

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| Honolulu, Hawaii Presented By Water Resources Research Center (WRRC), Hawaii and American Samoa Water and Environmental Research Institute (WERI), Guam Puerto Rico Water Resources and Environmental Research Institute (PRWRERI), Puerto Rico The Virgin Islands Water Resources Research Institute (VI-WRRI), U. S. Virgin

NOAA Photo Library

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reached the mature stage of formation. Image ID: nssl0065, NOAA's National Severe Storms Laboratory (NSSL Available Publication of the U.S. Department of Commerce, National Oceanic & Atmospheric Adminstration NOAA Photo Library Banner Takes you to the Top Page Takes you to the About this Site page. Takes

NOAA Photo Library

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in its early stage of formation. Image ID: nssl0061, NOAA's National Severe Storms Laboratory (NSSL Available Publication of the U.S. Department of Commerce, National Oceanic & Atmospheric Adminstration NOAA Photo Library Banner Takes you to the Top Page Takes you to the About this Site page. Takes

NOAA Photo Library

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in its early stage of formation. Image ID: nssl0062, NOAA's National Severe Storms Laboratory (NSSL Available Publication of the U.S. Department of Commerce, National Oceanic & Atmospheric Adminstration NOAA Photo Library Banner Takes you to the Top Page Takes you to the About this Site page. Takes

NOAA Photo Library

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in its early stage of formation. Image ID: nssl0064, NOAA's National Severe Storms Laboratory (NSSL Available Publication of the U.S. Department of Commerce, National Oceanic & Atmospheric Adminstration NOAA Photo Library Banner Takes you to the Top Page Takes you to the About this Site page. Takes

Wind Maps | Geospatial Data Science | NREL

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Wind Maps Wind Maps Wind Prospector This GIS application supports resource assessment and data exploration for wind development. This collection of wind maps and assessments details the wind resource in Geospatial Data Science Team. National Wind Resource Assessment The national wind resource assessment was

Impacts | Wind | NREL

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in hard hats standing on top of a large wind turbine overlooking several other wind turbines in the Framework Transforms FAST Wind Turbine Modeling Tool NREL Assesses National Design Standards for Offshore Wind Resource NREL Identifies Investments for Wind Turbine Drivetrain Technologies Awards R&D 100

@NWTC Newsletter: Fall 2013 | Wind | NREL

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Assessment of the U.S. Wind Industry in 2012 NREL Identifies Investments for Wind Turbine Drivetrain , medium-speed, medium-voltage wind turbine drivetrain design. Tapping into unparalleled expertise, the The drivetrain of a wind turbine converts the power of the wind into electrical energy. Now

Geothermal Maps | Geospatial Data Science | NREL

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presented in these maps was aggregated from the Geothermal Energy Association 2014 Annual U.S. and Global Geothermal Maps Geothermal Maps Our geothermal map collection covers U.S. geothermal power plants , geothermal resource potential, and geothermal power generation. If you have difficulty accessing these maps

NREL: Renewable Resource Data Center - Geothermal Resource Information

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Energy's Office of Energy Efficiency and Renewable Energy Geothermal Technologies Program. Its collection , and thermal springs. View NREL's Geothermal resource maps as well as maps for other renewable energy Geothermal Resource Information Geothermal Prospector Start exploring U.S. geothermal resources

XHTML Vocabulary

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content of resource. contentinfo contains meta information about the content on the page or the page as a Applications Vocabulary alert A message with important, and usually time-sensitive, information. Also see : true, false, or mixed. columnheader A cell containing header information for a column. combobox A

Federal Pesticide Regulation

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pesticides, the EPA works to protect human health and the environment. The EPA works cooperatively with state ; Environment Human Health Animal Health Safe Use Practices Food Safety Environment Air Water Soil Wildlife Ingredients Low-Risk Pesticides Organic Pesticide Ingredients Pesticide Incidents Human Exposure Pet Exposure

Before You Control Your Pest

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; Environment Human Health Animal Health Safe Use Practices Food Safety Environment Air Water Soil Wildlife Ingredients Low-Risk Pesticides Organic Pesticide Ingredients Pesticide Incidents Human Exposure Pet Exposure activities. Public Health Departments Control pests that impact human health and that are a community concern

Alternative Fuels Data Center

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fueled for the fleet to be subject to the regulatory requirements. Under Standard Compliance, the AFVs that may be used toward compliance or banked once the fleet achieves compliance for investments in composition. For more information, visit the EPAct State and Alternative Fuel Provider Fleets website

R&D Nuggets

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Origin of the Chemical Elements and Their Discoveries [added 1/2007] National Laboratories and Other to the content of DOE R&D Accomplishments. Celebrating Einstein - series of articles about Albert Einstein and his work [added 3/2005] Compact Portable Electric Power Sources [added 1/2007] History of the

Fermilab | Science | Historic Results

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quark since the discovery of the bottom quark at Fermilab through fixed-target experiments in 1977. Both cosmic rays. Researchers previously had assumed that cosmic rays approach the Earth uniformly from random impact the Earth generally come from the direction of active galactic nuclei. Many large galaxies

ACHP | Defense Department Compliance with NHPA

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NHPA: Section 202(a)(6) Evaluation Report Defense Department Compliance with the National Historic )(6) Evaluation Report is a preliminary step in helping the Department of Defense marshall its Search skip specific nav links Home arrow Publications arrow Intro: Defense Department Compliance with

SIMES

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image nivo slider image nivo slider image nivo slider image nivo slider image nivo slider image Quick Energy@Stanford&SLAC LINAC Coherent Light Source (LCLS) Stanford Synchrotron Radiation Lightsource 29 30 31 1 2 3 Events (List View) No events See all events ©2012- Stanford University. All rights

Navy.mil The Official Website of the United States Navy: Home Page

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of the Navy Chief Of Naval Operations Master Chief Petty Officer Of The Navy Chief Of Naval Personnel Pentagon Hall of Heroes On May 25, Medal of Honor recipient retired Master Chief Petty Officer (SEAL Of Naval Operations Master Chief Petty Officer Of The Navy Chief Of Naval Personnel Biographies SES

ACHP | News | President Bush Issues Executive Order on Preserve America

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requirements of subsections 3(a)-(c) of this order. To assist agencies, the Council, in consultation with the Preservation Officer in accordance with section 110(c) of the NHPA. The senior official shall ensure that the public benefit from, and access to, Federally owned historic properties. (c) The Council is directed to

Publications - GMC 9 | Alaska Division of Geological & Geophysical Surveys

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; Texaco West Kavik #1; Canning River B-1; ARCO Kavik #1; Forest Kemik #1; BP Kemik #2; Canning River A-1 ; Toolik Federal #1 Authors: Curiale, J.A. Publication Date: 1982 Publisher: Alaska Division of Geological eight North Slope wells: Mobil West Staines #2; Texaco West Kavik #1; Canning River B-1; ARCO Kavik #1

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Energy-Water Nexus and Energy Systems Integration | Energy Systems

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on a new area of research geared at finding ways to balance our water use for power systems. Photo of a body of water NREL's research explores the relationship between how much water is evaporated to spectrum. Learn more about NREL's energy-water nexus research. Team with us on water-energy nexus research

NREL to Lead Novel Field Demonstration of Wind Turbine Control at the Wind

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Power Plant Level | News | NREL to Lead Novel Field Demonstration of Wind Turbine Control at the Wind Power Plant Level NREL to Lead Novel Field Demonstration of Wind Turbine Control at the Wind to test wind turbine technology controls at the overall wind power plant level. This is a significant

Alternative Fuels Data Center: Maps and Data

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2014 2015 2016 Acura 1 2 1 Audi 6 6 7 7 Bentley Motors 3 3 4 4 3 BMW 1 3 1 3 6 6 5 Buick 1 1 1 3 4 5 1 3 2 Cadillac 2 2 4 4 6 4 2 1 Chevrolet 1 2 3 1 4 4 6 5 7 7 8 7 8 9 11 10 11 14 20 26 24 30 27 Chrysler 2 2 3 2 4 1 1 1 3 3 4 2 3 3 3 3 5 5 Coda Automotive 1 1 0 Dodge 2 2 3 7 5 1 4 4 6 6 6 2 4 5 5 5 6

Recycling

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Alamos National Laboratory Delivering science and technology to protect our nation and promote world stability Science & Innovation Collaboration Careers Community Environment Science & Innovation Facilities Science Pillars Research Library Science Briefs Science News Science Highlights Lab Organizations

Home Energy Saver

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. Environmental Protection Agency logo PIER logo Touchstome Energy Cooperatives logo California Air Resouces Board logo Infosys logo Berkeley Lab logo Created for the US Department of Energy by the Energy Technologies Energy logo

GROWTH FACTORS AND COX2 IN WOUND HEALING: AN EXPERIMENTAL STUDY WITH EHRLICH TUMORS.

PubMed

Salgado, Flávio L L; Artigiani-Neto, Ricardo; Lopes-Filho, Gaspar de Jesus

2016-01-01

Healing is an innate biological phenomenon, and carcinogenesis acquired, but with common humoral and cellular elements. Carcinogenesis interferes negatively in healing. To evaluate the histological changes in laparotomy scars of healthy Balb/c mice and with an Ehrlich tumor in its various forms of presentation. Fifty-four mice were divided into three groups of 18 animals. First group was the control; the second had Ehrlich tumor with ascites; and the third had the subcutaneous form of this tumor. Seven days after tumor inoculation, all 54 mice were submitted to laparotomy. All of the animals in the experiment were operated on again on 7th day after surgery, with resection of the scar and subsequent euthanasia of the animal. The scars were sent for histological assessment using immunohistochemical techniques to evaluate Cox-2 (cyclooxygenase 2), VEGF (vascular endothelial growth factor) and FGF (fibroblast growth factor). Semi-quantitatively analysis was done in the laparotomy scars and in the abdominal walls far away from the site of the operation. Assessing the weight of the animals, the correct inoculation of the tumor and weight gain in the group with tumoral ascites was observed. The histological studies showed that groups with the tumor showed a statistically significant higher presence of Cox-2 compared to the control. In the Cox-2 analysis of the abdominal wall, the ascites group showed the most significant difference. VEGF did not present any significant differences between the three groups, regardless of the site. The FGF showed a significant increase in animals with the tumor. Histological findings in both laparotomy scar and the abdominal wall showed that with Ehrlich's neoplasia there was an exacerbated inflammatory response, translated by more intense expression of Cox-2 and greater fibroblast proliferation, translated by more intense expression of FGF, that is, it stimulated both the immediate inflammatory reactions, observed with Cox-2 reactions, and late scarring by fibroblasts and FGF. A cicatrização é fenômeno biológico inato, e a carcinogênese adquirido, mas com elementos humorais e celulares comuns. A carcinogênese interfere de forma negativa na cicatrização. Avaliar as modificações histológicas nas cicatrizes laparotômicas de camundongos Balb/c sadios como controles, e com a neoplasia de Ehrlich, em suas diferentes formas de apresentação. Foram utilizados 54 camundongos, divididos em três grupos de 18 animais cada um. O primeiro era controle; o segundo com a neoplasia de Ehrlich em sua forma ascítica; e o terceiro na forma subcutânea. Sete dias após a inoculação do tumor, todos os 54 camundongos foram submetidos à laparotomia e reoperados no sétimo dia de pós-operatório, com ressecção da cicatriz e posterior eutanásia. As cicatrizes foram encaminhadas para estudo histológico com técnicas imunoistoquímicas para avaliar Cox-2 (ciclo-oxigenase 2), VEGF (fator de crescimento do endotélio vascular) e FGF (fator de crescimento dos fibroblastos) e analisadas de forma semiquantitativana tanto na cicatriz laparotômica como na parede abdominal mais distante do local operado. Avaliando o peso, observou-se a correta inoculação do tumor e o aumento de peso no grupo com a neoplasia na modalidade ascítica. Os estudos histológicos mostraram que os grupos com a neoplasia apresentaram maior presença da Cox-2 em relação ao controle, estatisticamente significante. No estudo da Cox-2 da parede abdominal foi o local em que o grupo ascítico apresentou a diferença mais expressiva. O VEGF não apresentou diferenças significantes entre os três grupos, independentemente do local estudado. O FGF teve aumento significante nos animais com neoplasia. Os achados histológicos encontrados tanto na cicatriz das laparotomias quanto na parede abdominal mostraram que com a neoplasia de Ehrlich houve resposta inflamatória exacerbada, traduzida por expressão mais intensa da Cox-2 e maior proliferação fibroblástica, traduzida por expressão mais intensa do FGF, ou seja, estimulou tanto as reações inflamatórias imediatas, observadas nas reações da Cox-2, como nas cicatriciais tardias com os fibroblastos e o FGF.

The policy of the Laboratory is to provide a safe and healthy workplace for

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group within the Collider Accelerator (C-A) Department. The Advanced Accelerator Group, a group within ://www.tvdg.bnl.gov/index.html that also has links to the C-A and other BNL information. We hope your stay at policies are outlined in the Employees' Handbook, the BNL ES&H Standards the C-A Operations Procedure

NOAA Weather Radio

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Programación Español Listado de estación Explicacion de SAME Coverage Station Listing County Listing Search For Go NWS All NOAA Lista de Emisora y Cobertura Seleccione aquí para radiofrecuencias (La lista Transmitter Outages FAQ NWR - Special Needs ESPAÑOL Español Condado de cobertura Listado de estación Lista

Concentrating Solar Power Projects - Morón | Concentrating Solar Power |

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, 2018 Project Overview Project Name: Morón Country: Spain Location: Morón de la Frontera (Seville ? Background Technology: Parabolic trough Status: Operational Country: Spain City: Morón de la Frontera Region NREL Morón This page provides information on Morón, a concentrating solar power (CSP) project

Index of /data/nccf/com/gens/prod

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Index of /data/nccf/com/gfs/prod

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From Nigel Lockyer: Five things you should know | News

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Financial Officer Finance Section Office of the Chief Operating Officer Facilities Engineering Services Accelerator Division Accelerator Physics Center Office of the Chief Safety Officer Environment, Safety, Health and Quality Section Office of the Chief Project Officer Office of Project Support Services Office of

MicroBooNE project team recognized by Department of Energy | News

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Financial Officer Finance Section Office of the Chief Operating Officer Facilities Engineering Services Accelerator Division Accelerator Physics Center Office of the Chief Safety Officer Environment, Safety, Health and Quality Section Office of the Chief Project Officer Office of Project Support Services Office of

DGIC Interconnection Insights | Distributed Generation Interconnection

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Power Association (SEPA), produced a webinar Utility Participation in the Roof Top Solar PV Market with ). These leaders are pioneering utility-owned rooftop solar programs to broaden the reach of solar PV utility hired solar PV developers who, representing CPS Energy, will install, own, and maintain solar

Solar Plus: A Holistic Approach to Distributed Solar PV | Solar Research |

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NREL Plus: A Holistic Approach to Distributed Solar PV Solar Plus: A Holistic Approach to Distributed Solar PV A new NREL report analyzes "solar plus," an emerging approach to distributed solar photovoltaic (PV) deployment that uses energy storage and controllable devices to optimize

2015 PV Solar Resource Workshop | Photovoltaic Research | NREL

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PV Solar Resource Workshop 2015 PV Solar Resource Workshop Friday, February 27, 2015 Chairs understand the solar resource available to PV plants and opportunities for the community to improve over the as Adobe Acrobat PDFs. Solar Resource Needs for Prediction and Monitoring of PV Performance

The New Jersey Water Resources Research Institute at Rutgers NJAES

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Rutgers New Jersey Agricultural Experiment Station [The New Jersey Water Resources Research wetland Program Areas The New Jersey Water Resources Research Institute (NJWRRI) is a federally-funded water in the state. Its mission is to: sponsor research on all aspects of water quality, water quantity

Energy Systems Integration Facility Insight Center | Energy Systems

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simulation data. Photo of researchers studying data on a 3-D power system profile depicting the interaction of renewable energy resources on the grid. Capabilities The Insight Center offers the following Integration Facility Insight Center Located adjacent to the Energy System Integration Facility's High

NREL Leads Wind Farm Modeling Research - Continuum Magazine | NREL

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ten 2-MW Bonus wind turbines. Photo provided by HC Sorensen, Middelgrunden Wind Turbine Cooperative ) has created complex computer modeling tools to improve wind turbine design and overall wind farm activity surrounding a multi-megawatt wind turbine. In addition to its work with Doppler LIDAR, the

@NWTC Newsletter: Summer 2014 | Wind | NREL

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, Developmental Role in Major Wind Journal Boosting Wind Plant Power Output by 4%-5% through Coordinated Turbine . Part 2: Wind Farm Wake Models New Framework Transforms FAST Wind Turbine Modeling Tool (Fact Sheet ) Sensitivity Analysis of Wind Plant Performance to Key Turbine Design Parameters: A Systems Engineering

Geothermal Energy Basics | NREL

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Geothermal Energy Basics Geothermal Energy Basics Many technologies have been developed to take advantage of geothermal energy-the heat from the earth. This heat can be drawn from several sources: hot hot spring. The Earth's heat-called geothermal energy-escapes as steam at a hot springs in Nevada

Nuclear and Particle Physics, Astrophysics and Cosmology : T-2 : LANL

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linked in Search T-2, Nuclear and Particle Physics, Astrophysics and Cosmology T-2 Home T Division Focus Areas Nuclear Information Service Nuclear Physics Particle Physics Astrophysics Cosmology CONTACTS Group energy security, heavy ion physics, nuclear astrophysics, physics beyond the standard model, neutrino

99aa/99ac data sets

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-redshifted), Observed Flux, Statistical Error (Based on the optimal extraction algorithm of the IRAF packages were acquired using different instrumental settings for the blue and red parts of the spectrum to avoid extracted for systematics checks of the wavelength calibration. Wavelength and flux calibration were applied

PEER Annual Meeting | Events

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window. 2018 PEER Annual Meeting, Jan 18-19, 2018 in Berkeley, CA 2016 PEER Annual Meeting, Jan 28-29 home about peer news events research products laboratories publications nisee b.i.p. members education FAQs links Events Calendar of PEER and Other Events PEER Events Archive PEER Annual Meeting 2009

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Nicholas Brunhart-Lupo | NREL

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. Education Ph.D., Computer Science, Colorado School of Mines M.S., Computer Science, University of Queensland B.S., Computer Science, Colorado School of Mines Brunhart-Lupo Nicholas Brunhart-Lupo Computational Science Nicholas.Brunhart-Lupo@nrel.gov

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Smithsonian Marine Station at Fort Pierce Website Search Box Search Field: SMS Website Search Search Submit: Submit Advanced Search IRLSI Home Search the Inventory The IRL Stewardship IRL Photo Institution Privacy SMS Home Contact Us Search NMNH Home DCSIMG

Index of /data/nccf/com/nam/prod

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WPC Maximum Heat Index Forecasts

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Forecasts for Western US CLICK ON MAPS FOR MAXIMUM HEAT INDEX AND PROBABILITY FORECASTS FROM SUN MAY 27 2018 02 CLICK to view SAT JUN 02 forecast SUN JUN 03 CLICK to view SUN JUN 03 forecast SUN JUN 03 CLICK to view SUN JUN 03 forecast SUN JUN 03 CLICK to view SUN JUN 03 forecast SUN JUN 03 CLICK to view SUN JUN

River Flow Advisory Commission: Snow Survey

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Survey River Watch Home → Snow Survey RFAC Information About Us Reports Maine Cooperative Snow Survey About the Snow Survey Snow Survey Map Compare Snow Survey Data Snow Survey Graphs River Watch MEMA Home USGS (Maine) Home Maine Cooperative Snow Survey This information is provided by a partnership with

Bobi A. Garrett - Deputy Laboratory Director and Chief Operating Officer

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| NREL Bobi A. Garrett - Deputy Laboratory Director and Chief Operating Officer Bobi A. Garrett - Deputy Laboratory Director and Chief Operating Officer A photo of Bobi A. Garrett, Deputy Laboratory Director and Chief Operating Officer In her role as deputy laboratory director/chief operating officer (COO

Sistema de Vigilancia de Influenza de Puerto Rico |

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Rico VIH Publicaciones sobre la Salud Otras Publicaciones Registros Suicidio Tuberculosis Centro de Suicidio Tuberculosis Recent Ávisos Públicos Reglamentación Informe de Casos del Síndrome de Guillain Departamento de Salud de Puerto Rico Departamento de Salud Search... Search It looks like your

ACHP | News

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§ 800.10(c) provides further direction for the ACHP to consider requesting the preparation of a Reports Background. Section 213 of the National Historic Preservation Act (NHPA) [16 U.S.C. § 470u ] directs the Secretary of the Interior (Secretary), if requested by the Chairman of the Advisory Council on

Supercell and tornado roles

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where C is the storm motion vector, and k is the unit vector in the vertical (Davies-Jones et al. 1990 mutually interacting perspectives, each addressing different aspects of the supercell storms most directly marked by low clouds, extending to the left. Photograph © 2005 C. Doswell 4. Developing a conceptual

Exploring Renewable Energy Integration in California - Text Version |

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look at different penetrations of solar and understand how the duck chart shape change and how much analyses and different scenario analyses to understand the key drivers behind these challenges. Today, we each of our different scenarios. We have three different renewable portfolios that we looked at. On the

Presentations - Herriott, T.M. and others, 2015 | Alaska Division of

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Details Title: Sequence stratigraphic framework of the Upper Jurassic Naknek Formation, Cook Inlet forearc Resident Business in Alaska Visiting Alaska State Employees DGGS State of Alaska search Alaska Division of ., Wartes, M.A., and Decker, P.L., 2015, Sequence stratigraphic framework of the Upper Jurassic Naknek

Defenselink Special: Remembering September 11, 2001 - Six Years Later ...

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Sept. 11 Memorial observance, honoring the 184 people who perished when American Airline 77 crashed observance today honoring the 184 people who perished when American Airlines Flight 77 crashed into the , Irwin gets emotional quickly when talking about the day that 184 people died here. One-hundred twenty

Wind Data | Geospatial Data Science | NREL

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Class 3 or greater are suitable for most utility-scale wind turbine applications, whereas class 2 areas ) with adequate wind resource for wind turbine applications may exist in some Class 1 areas. The degree Wind Data Wind Data These datasets detail the wind resource available in the United States. 50-m

Publications | Wind | NREL

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-specific analysis can be used to assess the risk induced by loss of a wind turbine blade. The study used for different wind turbine configurations. The authors used assumptions specific to the National Wind ., failure rate for wind turbine rotors) are based on a 13-year-old report on wind turbines installed in

NREL: Renewable Resource Data Center - Wind Resource Information

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and Actual Wind Turbine Sites (September 1982) and a Wind Energy Resource Atlas of the United States Wind Resource Information Photo of five wind turbines at the Nine Canyon Wind Project. The Nine Canyon Wind Project in Benton County, Washington, includes 37 wind turbines and 48 MW of capacity

NREL Research Determines Integration of Plug-in Electric Vehicles Should

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transportation and energy systems engineer at NREL and author of the new Nature Energy paper, "Impact of Muratori, author of the new Nature Energy paper "Impact of Uncoordinated Plug-in Electric Vehicle Integration of Plug-in Electric Vehicles Should Play a Big Role in Future Electric System Planning News

Publications - SR 65 | Alaska Division of Geological & Geophysical Surveys

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; Geophysical Surveys Comments: Your help is crucial in the compilation of future Alaska Minerals Reports. The quality and completeness of the information in these annual reports is dependent on input from all members of the mineral industry. Please take time to fill out the current mining and mineral activity

Publications - SR 52 | Alaska Division of Geological & Geophysical Surveys

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; Geophysical Surveys Comments: Your help is crucial in the compilation of future Alaska Minerals Reports. The quality and completeness of the information in these annual reports is dependent on input from all members of the mineral industry. Please take time to fill out the current mining and mineral activity

SuperCDMS - Home

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radiation and therefore it cannot be seen, which has earned it the title Dark Matter. Dark matter rest (approximately three quarters) of all the matter and energy in the universe is referred to as dark energy. Dark matter is most commonly hypothesized to be made up of exotic particles such as WIMPS (Weakly

Press Release | News | Page 2

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: Attend a Dark Matter Day event October 23, 2017 The world will soon be celebrating the hunt for the universe's most elusive matter in a series of Dark Matter Day events planned in over a dozen countries reveals most accurate measurement of dark matter structure in the universe August 3, 2017 Dark Energy

Press Release | News | Page 3

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, technology, engineering and math fields. New world-leading limit on dark matter search from PICO experiment February 27, 2017 The PICO-60 dark matter bubble chamber experiment has produced a new dark matter limit . Construction of world's most sensitive dark matter detector moves forward September 26, 2016 LUX-ZEPLIN (LZ), a

New Jersey | Midmarket Solar Policies in the United States | Solar Research

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| NRELA> Jersey New Jersey An arrow graphic shows that New Jersey's renewable portfolio standard property by a renewable system is exempt from property tax. Utility Incentive Programs The Board of Public incentive programs. Renewable Portfolio Standard New Jersey Board of Public Utilities: RPS Background New

Joint Center for Energy Storage Research

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singly charged lithium ions in the lithium-ion battery by new doubly or triple charged ions. Learn More Cells that Run on Air Scientists at UIC and Argonne Produce New Design of a True Lithium-air Battery phones from cumbersome bricks to sleek, powerful devices was possible because of the lithium-ion

SLAC Phone Directory: Search Form

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Facilities LCLS Hard X-Ray LCLS IT & Networking LCLS IT Photon Systems LCLS Instrumentation Dev LCLS Delivery Dept LCLS Science Research & DevDiv LCLS Soft X-Ray LCLS Technical Support LCLS User Beam Line Ops Sup SSRL MSD Hard X-rays SSRL MSD Soft X-rays SSRL MSDBeam Line Elec SSRL MSDBeam Line

Inventory of File nam.t00z.smartconus00.tm00.grib2

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(Eta model reduction) [Pa] 014 planetary boundary layer WDIR analysis Wind Direction (from which blowing) [degtrue] 015 planetary boundary layer WIND analysis Wind Speed [m/s] 016 planetary boundary layer RH analysis Relative Humidity [%] 017 planetary boundary layer DIST analysis Geometric Height [m

Richard T. (Rick) Elander | NREL

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T. (Rick) Elander Photo of Rick Elander Richard Elander Researcher VI-Chemical Engineering Chemicals and AIChE Annual Meeting, multiple years Education M.S., Chemical Engineering (Biochemical Engineering), Colorado State University B.S., Chemical Engineering, University of Pennsylvania Professional

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For more information about solar photovoltaic energy, visit the following resources: Solar PV Photovoltaic Technology Basics Solar Photovoltaic Technology Basics Solar cells, also called photovoltaic (PV) cells by scientists, convert sunlight directly into electricity. PV gets its name from the

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Publications Publications NREL publishes a variety of publications related to geothermal energy geothermal energy research. Featured Publications Mexico's Geothermal Market Assessment Report NREL Technical investment in the country's geothermal energy sector. Since 2013, Mexico has enacted comprehensive reforms to

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Ella Zhou | NREL

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. 2015. Methods for Analyzing the Economic Value of Concentrating Solar Power with Thermal Energy in the United States, Potential Lessons for ChinaPDF. Golden, CO: National Renewable Energy . Renewable Electricity: Insights for the Coming DecadePDF. Golden, CO: National Renewable Energy Laboratory

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Ramin Faramarzi Photo of Ramin Faramarzi Ramin Faramarzi Researcher V-Mechanical Engineering Engineering, California State University B.S. Mechanical Engineering, North Carolina State University articles and is a registered mechanical engineer in the state of California. Education M.S. Mechanical

Environmental Stewardship

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. Protecting the present through resource management The Laboratory actively manages and protects resources on shared land. Through biological monitoring, the Laboratory strives to minimize operational impacts to plants and animals. Through collaboration with its stakeholders and local tribal governments, the

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welcome your suggestions and feedback. Environmental Protection Agency logo PIER logo Touchstome Energy Cooperatives logo California Air Resouces Board logo Infosys logo Berkeley Lab logo Created for the US the HES API for your projects Department of Energy logo

Methodical thermolysis of [Ba2Ti2(thd)4(OnPr)8(nPrOH)2] under autogenous pressure followed by combustion for the synthesis of dielectric tetragonal BaTiO3 nanopowder.

PubMed

Pol, Vilas G; Thiyagarajan, P; Moreno, Jose M Calderon; Popa, Monica; Kessler, Vadim G; Gohil, Suresh; Seisenbaeva, Gulaim A

2009-07-06

The tetragonal BaTiO(3) nanopowder is synthesized in a solvent-less, efficient process by the thermolysis of a single [Ba(2)Ti(2)(thd)(4)(OnPr)(8)(nPrOH)(2)] precursor in a closed reactor at 700 degrees C under autogenous pressure, followed by combustion. This paper compiles the synthesis of the [Ba(2)Ti(2)(thd)(4)(OnPr)(8)(nPrOH)(2)] precursor, its analysis by mass spectrometry, and implementation for the fabrication of dielectric tetragonal BaTiO(3) nanopowder by controlled efficient thermal decomposition. The as-prepared, intermediate, and final forms of the obtained nanomaterials are systematically analysed by XRD, Raman, and EDS measurements to gain structural and compositional information. Employing HR-SEM, TEM, and HR-TEM techniques, the morphological changes during the structural evolution of all the phases are pursued. The mechanistic elucidation for the fabrication of BaTiO(3) nanopowder is developed on the basis of TGA and DTA data obtained for the initial [Ba(2)Ti(2)(thd)(4)(OnPr)(8)(nPrOH)(2)] reactant as well as the as-prepared BaCO(3) with amorphous Ti phase.

Solid State Synthesis and Properties of Monoclinic Celsian

NASA Technical Reports Server (NTRS)

Bansal, Narottam P.

1996-01-01

Monoclinic celsian of Ba(0.75)Sr(0.25)Al2Si2O8 (BSAS-1) and B(0.85)Sr(O.15)Al2Si2O8 (BSAS-2) compositions have been synthesized from metal carbonates and oxides by solid state reaction. A mixture of BaCO3, SrCO3, Al2O3, and SiO2 powders was precalcined at approx. 900-940 C to decompose the carbonates followed by hot pressing at approx. 1300 C. The hot pressed BSAS-1 material was almost fully dense and contained the monoclinic celsian phase, with complete absence of the undesirable hexacelsian as indicated by x-ray diffraction. In contrast, a small fraction of hexacelsian was still present in hot pressed BSAS-2. However, on further heat treatment at 1200 C for 24 h, the hexacelsian phase was completely eliminated. The average linear thermal expansion coefficients of BSAS-1 and BSAS-2 compositions, having the monoclinic celsian phase, were measured to be 5.28 x 10(exp -6)/deg C and 5.15 x 10(exp -6)/deg C, respectively from room temperature to 1200 C. The hot pressed BSAS-1 celsian showed room temperature flexural strength of 131 MPa, elastic modulus of 96 GPa and was stable in air up to temperatures as high as approx. 1500 C.

Orientation control of barium titanate films using metal oxide nanosheet layer

NASA Astrophysics Data System (ADS)

Uchida, Hiroshi; Oi, Tomotake; Noguchi, Keito; Moki, Shota; Kim, Jin Woon; Shima, Hiromi; Nishida, Ken; Kiguchi, Takanori; Akama, Akihiko; Konno, Toyohiko J.; Funakubo, Hiroshi

2016-10-01

In the present work, we aim to achieve the preferred crystal orientation of chemical solution deposition (CSD)-derived BaTiO3 films on ubiquitous Si wafers with the assistance of Ca2Nb3O10 nanosheet (ns-CN) template layers. The ns-CN on platinized Si (Pt/Si) substrates aligned the BaTiO3(100) plane to the substrate surface, because of the favorable lattice matching of the ns-CN (001) plane. The CSD process in air required a high crystallization temperature of 900 °C for the preferred crystal orientation of BaTiO3(100) because of the BaCO3 byproduct generated during the combustion reaction of the precursor gel. The processing in vacuum to remove CO2 species enhanced the crystal orientation even at the crystallization temperature of 800 °C, although it can generate oxygen vacancies (\\text{V}\\text{O}{} \\bullet \\bullet ) that cause distorted polarization behavior under an applied field higher than approximately 150 kV/cm. The relative dielectric constant (εr) of the (100)-oriented BaTiO3 film on the ns-CN-supported Pt/Si substrate (ns-CN/Pt/Si) was generally larger than that of the randomly oriented film on Pt/Si, depending on the degree of crystal orientation.

Hexavalent chromium bioreduction and chemical precipitation of sulphate as a treatment of site-specific fly ash leachates.

PubMed

Cason, Errol D; Williams, Peter J; Ojo, Elizabeth; Castillo, Julio; DeFlaun, Mary F; van Heerden, Esta

2017-05-01

Most of the power generation globally is by coal-fired power plants resulting in large stockpiles of fly ash. The trace elements associated with the ash particles are subjected to the leaching effects of precipitation which may lead to the subsequent contamination of surface and groundwater systems. In this study, we successfully demonstrate an efficient and sustainable dual treatment remediation strategy for the removal of high levels of Cr 6+ and SO 4 2- introduced by fly ash leachate generated by a power station situation in Mpumalanga, South Africa. The treatment consisted of a primary fixed-bed bioreactor kept at a reduction potential for Cr 6+ reduction. Metagenome sequencing clearly indicated a diverse bacterial community containing various bacteria, predominantly of the phylum Proteobacteria which includes numerous species known for their ability to detoxify metals such as Cr 6+ . This was followed by a secondary BaCO 3 /dispersed alkaline substrate column for SO 4 2- removal. The combination of these two systems resulted in the removal of 99% Cr 6+ and 90% SO 4 2- . This is the first effective demonstration of an integrated system combining a biological and chemical strategy for the remediation of multi-contaminants present in fly ash leachate in South Africa.

Christopher Kinchin | NREL

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Kinchin Photo of Christopher Kinchin Christopher Kinchin Researcher III-Chemical Engineering . Education B.S., Chemical Engineering, Texas Tech University M.S., Chemical Engineering, University of North

Golden Rays - July 2017 | Solar Research | Solar Research | NREL

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Operator, First Solar, and NREL tested a 300-MW PV plant to demonstrate that, with proper controls, PV can technique to measure charge-carrier transport in PV materials. Solar Plus: A Holistic Approach to Distribution Solar PV By optimizing how PV interacts with other electricity loads at the household- and grid

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THE QPF DIFFERENT BETWEEN THE 12-KM NAM PARENT DOMAIN AND THE 4-KM NAM CONUS NEST? (04 Nov 2011) WHAT 28 MAR 2000? Eta Post Processor WHY IS THE SLP DIFFERENT BETWEEN AWIPS AND AFOS? (updated 6 Nov 98 IN THE BUFR OUTPUT DIFFERENT FROM WHAT IS OBSERVED? Eta Data Assimilation System (EDAS) COMMENTS ON

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replicates the stochastic nature of wind power plant output. NREL modeled hysteresis around wind turbine cut where wind speeds are often near wind turbine cut-out (~25 m/s), SCORE output does not replicate the Vestas V90). The hysteresis-corrected SCORE is an attempt to put the wind turbine hysteresis at cut-out

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turbine or wind farm is one of the few technologies that supplies renewable energy at the scale required . Before determining whether a site is suitable for a wind turbine, read the Wind Energy Siting Handbook Community College has installed a wind turbine on site and now offers an Associate Degree in wind energy and

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double-hung windows as a means of counterbalancing the weight of the sash during opening and closing. Bay a fixed sash or a double-hung window. Also referred to as bead stop. Blackbody. The ideal, perfect member of the lower sash which meet at the middle of a double-hung window. Clerestory. A window in the

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igneous rocks of the Tanana B-1 Quadrangle and vicinity Authors: Newberry, R.J., and Haug, S.A , and Sr isotopic data for igneous rocks of the Tanana B-1 Quadrangle and vicinity: Alaska Division of ; Isotopes; Plutonic; STATEMAP Project; Trace Elements; Volcanic Top of Page Department of Natural Resources

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Inventory of File gfs.t06z.smartguam15.tm00.grib2

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hour fcst Visibility [m] 014 planetary boundary layer WDIR 15 hour fcst Wind Direction (from which blowing) [degtrue] 015 planetary boundary layer WIND 15 hour fcst Wind Speed [m/s] 016 planetary boundary layer RH 15 hour fcst Relative Humidity [%] 017 planetary boundary layer DIST 15 hour fcst Geometric

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Facilities Support Innovation and Collaboration Take a Tour of a Wind Turbine Featured Publications 2017 Recommended Practices Lidar-Enhanced Wind Turbine Control: Past, Present, and Future Development of a 5 MW wind turbine science and lowering the cost of wind-generated electricity alongside our partners. We

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innovation through integration. Illustration of NREL energy analysis research, including impact systems analysis integrates all aspects of our capability set to develop future energy system scenarios evaluate and understand the impact of markets, policies, and financing on technology uptake and the impact

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Smithsonian Marine Station at Fort Pierce Website Search Box Search Field: SMS Website Search Search Submit: Submit Advanced Search IRLSI Home Search the Inventory The IRL Stewardship IRL Photo Gallery Links and Events About Us SMS Home Roseate Spoonbill Search by Word or Phrase Go to Species

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history of Nino3.4 SST anomalies of individual forecasts Forecast anomalies Target season Nino SST Global SST Global Prec Global T2m US Prec US T2m US SM z200 NDJ 2004/2005 Nino SST Global SST Global Prec Global T2m US Prec US T2m US SM z200 DJF 2005 Nino SST Global SST Global Prec Global T2m US Prec US T2m

Inventory of File sref.t03z.pgrb197.prob_ds_3hrly.grib

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ground WIND 3 hour fcst Wind Speed [prob] prob >12.89 005 10 m above ground WIND 3 hour fcst Wind Speed [prob] prob >17.5 006 10 m above ground WIND 3 hour fcst Wind Speed [prob] prob >25.78 007 2 ;0.015 010 10 m above ground WIND 6 hour fcst Wind Speed [prob] prob >12.89 011 10 m above ground WIND

U.S. High Seas Marine Text Forecasts by Area

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Flooding Tsunamis 406 EPIRB's U.S. High Seas Marine Text Forecasts by Area OPC N.Atlantic High Seas Forecast NHC N.Atlantic High Seas Forecast OPC N.Pacific High Seas Forecast HFO N.Pacific High Seas Forecast NHC N.Pacific High Seas Forecast HFO S.Pacific High Seas Forecast U.S. High Seas Marine Text

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Inventory of File gfs.t06z.smartguam24.tm00.grib2

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boundary layer WDIR 24 hour fcst Wind Direction (from which blowing) [degtrue] 016 planetary boundary layer WIND 24 hour fcst Wind Speed [m/s] 017 planetary boundary layer RH 24 hour fcst Relative Humidity [%] 018 planetary boundary layer DIST 24 hour fcst Geometric Height [m] 019 surface 4LFTX 24 hour fcst

Publications - NL 2002-1 | Alaska Division of Geological & Geophysical

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Visiting Alaska State Employees DGGS State of Alaska search Alaska Division of Geological & Geophysical 2002 Publisher: Alaska Division of Geological & Geophysical Surveys Ordering Info: Download below Reference DGGS Staff, and Werdon, M.B., 2002, Alaska GeoSurvey News - Geologic Investigations in the Salcha

2017 Cybersecurity Workshop: Readouts from Working Groups - Video Text

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applicability of artificial intelligence to search for cybersecurity gaps in our existing SKATA networks. Second primarily renewable that all back each other up; that are all highly intelligent, artificial intelligence we have in cyber security, digital technologies, artificial intelligence. We think that that would

Preservation50 - Making Archaeology Public

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hierarchical control architecture that enables a hybrid control approach, where centralized control systems will be complemented by distributed control algorithms for solar inverters and autonomous control of ), involves developing a novel control scheme that provides system-wide monitoring and control using a small

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Fermilab Center for Particle Astrophysics | FCPA

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Us About Us Contact Science Dark Matter Dark Energy Cosmic Microwave Background Radiation (CMBR) New detection and detailed study of the properties of cosmic dark matter particles in the laboratory » Hunting for Light Dark Matter in a Bubble Chamber September 18, 2013 | Hugh Lippincott The

FNAL Student Resources

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understandings lead to new fundamental questions and a new world of discovery. What is dark matter? What happened NOvA Detector Dark Energy Camera Whispers of Dark Matter Elusive Neutrino Particle physics research World Particle Diversity Dark Matter Neutrino Secrets The Birth of the Universe The Universe's History

Alternative Fuels Data Center

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to achieve the Replacement Fuel Goal. For more information on the Private and Local Government Fleet Private and Local Government Fleets Under the Energy Policy Act (EPAct) of 1992, the U.S . Department of Energy (DOE) was directed to determine whether private and local government fleets should be

Software Tools for Battery Design | Transportation Research | NREL

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battery designers, developers, and manufacturers create affordable, high-performance lithium-ion (Li-ion Software Tools for Battery Design Software Tools for Battery Design Under the Computer-Aided ) batteries for next-generation electric-drive vehicles (EDVs). An image of a simulation of a battery pack

Ahmad Pesaran Honored with DOE Assistant Secretary's 2017 EERE Outstanding

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lithium-ion battery performance for electric vehicles. No stranger to inspiring colleagues, providing Michelbacher (INL, VTO Battery and Electrification), Steven Boyd (DOE, VTO Battery and Electrification), Brian Cunningham (DOE, VTO Battery and Electrification), Samuel Gillard (DOE, VTO Battery and Electrification

NREL Scientists and Engineers Recognized for Top Innovations | NREL | News

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commercially available, large-format isothermal battery calorimeter for lithium-ion battery safety testing to test the performance and safety of large-format lithium-ion batteries used extensively in electric develop NREL intellectual property representing an isothermal battery calorimeter. The technical

NOAA Office of Exploration and Research > Education > Materials

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2014 Funding Opportunities Contact Us Program Review Review Panel Final Report Review Team Documents Review Review Panel Final Report Review Team Documents Presentations Supporting Documents Guiding

Staff Directory | NREL

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staff. Search by first or last name; this search is not case-sensitive. SEARCH: Search Select a search type Select your criteria Enter your search term Contact us for questions or comments

NOAA Photo Library - NOAA In Space Collection/Space Vehicles Album/Tiros

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NOAA Photo Library Banner Takes you to the Top Page Takes you to the About this Site page. Takes you to the Contacts page. Takes you to the HELP page. Takes you to the Credits page. Takes you to the Collections page. Takes you to the search page. Takes you to the Links page. Tiros Banner NOAA In Space

NOAA Photo Library - NOAA In Space Collection/Satellite Systems/Polar and

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Inclined Orbit Satellites NOAA Photo Library Banner Takes you to the Top Page Takes you to the About this Site page. Takes you to the Contacts page. Takes you to the HELP page. Takes you to the Credits page. Takes you to the Collections page. Takes you to the search page. Takes you to the Links page

NOAA Office of Exploration and Research > Science > Overview

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2014 Funding Opportunities Contact Us Program Review Review Panel Final Report Review Team Documents Opportunities Contact Us Program Review Review Panel Final Report Review Team Documents Presentations Supporting

Employee Spotlight: Clarence Chang | Argonne National Laboratory

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batteries --Electricity transmission --Smart Grid Environment -Biology --Computational biology --Environmental biology ---Metagenomics ---Terrestrial ecology --Molecular biology ---Clinical proteomics and biomarker discovery ---Interventional biology ---Proteomics --Structural biology -Environmental science &

Summer teachers' teaching tool

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and nervous system of the frog. Skeleton System Organs Digestive System Nervous System Berkeley Lab students study anatomy of a frog in Biology class room. The pictures showed the skeleton, organs, digestive

Solar Access: Issues and Policy Options | State, Local, and Tribal

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: approximately 2,580 megawatts (MW) of new residential solar photovoltaic (PV) capacity was brought online in home with rooftop solar Figure 1. Example of a residential solar PV system. NREL 00565 The existing Governments | NREL Solar Access: Issues and Policy Options Solar Access: Issues and Policy

Smoot Astrophysics Research Program

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the same basic force and have frozen out to different forces in the cooler present Universe. We see Implications of the COBE DMR Map of the Early Universe What COBE DMR saw: The COBE DMR (Cosmic Background Explorer Differential Microwave Radiometer) mapped the microwave (wavelengths of 9, 5,6, and 3.3

Big World of Small Neutrinos

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electron neutrino, muon neutrino, or tau neutrino. The three different neutrinos are complemented by anti of the neutrinos we detect will look different (have a different flavor) compared to the time they Big World of Small Neutrinos Neutrinos will find you! Fig 1: Hubble image of the deep field

Introductory Talk: Whole Frog Project

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geometric primitives (points, lines, polygons, etc.) that accurately represent the shape of the surface constant value (color). This operation effectively defines the boundary between areas of different color about 10 seconds on a 56K baud modem. The controls can be set to send compressed images of 3 different

Full Hybrid: Cruising

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1 At speeds above mid-range, both the engine and electric motor are used to propel the vehicle. The gasoline engine provides power to the drive-train directly and to the electric motor via the generator. Go , generator, power split device, and electric motor visible. The car is moving. There are blue arrows flowing

Solution for Data Security Challenges Faced by Smart Grid Evolution - Video

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the same utility - different business units that are dealing with generation, transmission, and smart grid, the consumers now also have access to information about zero utilization and the different alive to sense what's going on. And then there's certainly variety with the various different elements

what is a tornado?

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all the same. It appears that tornadoes arise in many different ways, and perhaps different process can be associated with the tornado at different times in its life cycle. Moreover, not all tornadoes , mesocyclone) be? Where do you propose to put the dividing lines between tornado-tornado cyclone-mesocyclone? c

The GFS Atmospheric Model description

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model has only one type of cloud cover represented by C. In the tropics the cloudiness is primarily due mainly through grid-scale condensation. The fractional cloud cover C is available at all model levels , 1996: Parameterizations for the absorption of solar radiation by water vapor and ozone. J. Atmos. Sci

Teachers Participate in Scientific Work to Prepare for School Year

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improve the quality of science, mathematics and technology education in Colorado schools, the U.S critical agents of change in working to improve science, mathematics and technology education in our Science and Technology Education Irene Hays. "This is NREL's way of helping the quality of teaching

Publications - PIR 2008-1C | Alaska Division of Geological & Geophysical

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investigations in the Brooks Range Foothills and North Slope, Alaska: Alaska Division of Geological & Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska content DGGS PIR 2008-1C Publication Details Title: Evaluation of stratigraphic continuity between the

Publications - PIR 2003-1 | Alaska Division of Geological & Geophysical

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, Alluvial facies and paleosols in the Cretaceous Nanushuk formation, Kanayut River, North Slope, Alaska Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska content DGGS PIR 2003-1 Publication Details Title: Alluvial facies and paleosols in the Cretaceous

Publications - RI 2015-7 | Alaska Division of Geological & Geophysical

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Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska content DGGS RI 2015-7 Publication Details Title: Surficial geology of the Tyonek area, south-central of the Tyonek area, south-central Tyonek Quadrangle, Alaska: Alaska Division of Geological &

Publications - PIR 2015-5-5 | Alaska Division of Geological & Geophysical

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., 2015, Stratigraphic reconnaissance of the Middle Jurassic Red Glacier Formation, Tuxedni Group, at Red Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska content DGGS PIR 2015-5-5 Publication Details Title: Stratigraphic reconnaissance of the Middle Jurassic

Publications - PIR 2008-1A | Alaska Division of Geological & Geophysical

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of recent geologic field investigations in the Brooks Range Foothills and North Slope, Alaska: Alaska Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska ; Tectonics; Thermal History; Thrust; Toolik River; Torok Formation; Turbidites; Turonian; Valanginian Top of

Electric and Plug-In Hybrid Electric Fleet Vehicle Testing | Transportation

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Research | NREL Electric and Plug-In Hybrid Electric Fleet Vehicle Evaluations Electric and Plug-In Hybrid Electric Fleet Vehicle Evaluations How Electric and Plug-In Hybrid Electric Vehicles Work EVs use batteries to store the electric energy that powers the motor. EV batteries are charged by

Eastern Wind Data Set | Grid Modernization | NREL

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cell was computed by combining these data sets with a composite turbine power curve. Wind power plants wind speed at the site. Adjustments were made for model biases, wake losses, wind gusts, turbine and conversion was also updated to better reflect future wind turbine technology. The 12-hour discontinuity was

Systems Engineering Models and Tools | Wind | NREL

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(tm)) that provides wind turbine and plant engineering and cost models for holistic system analysis turbine/component models and wind plant analysis models that the systems engineering team produces. If you integrated modeling of wind turbines and plants. It provides guidance for overall wind turbine and plant

NREL Taps Young to Oversee Geothermal Energy Program | News | NREL

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Taps Young to Oversee Geothermal Energy Program News Release: NREL Taps Young to Oversee Geothermal (NREL) promoted Katherine Young to laboratory program manager for geothermal energy. Young has been with NREL since 2008, working as a senior geothermal analyst and engineer in the Strategic Energy Analysis

ERDDAP - RESTful Web Services

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, graphs, or information about datasets). A RESTful web service (external link) - a URL that computer to get the same information in a more computer-program-friendly format like JSON (external link .jsonlKVP, where column names are on every row): Each column has a column name and one type of information

NREL and Hawaiian Electric Navigate Uncharted Waters of Energy

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potential grid impact of adding customer-side storage to rooftop solar systems-a scenario that could soon Systems Integration Facility's (ESIF's) power hardware-in-the-loop capability. NREL's ESIF was one of the justify activation of a specific grid support function called "volt-var control" for all new

DRIVE: Drive-Cycle Rapid Investigation, Visualization, and Evaluation

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specialized statistical clustering methods. The duration of these representative drive cycles, which aim to , DRIVE can benefit a variety of users. For example: Fleet managers can use the tool to make educated investment decisions by determining, in advance, the payback period for a given technology. Vehicle

Publications - PDF 98-36A | Alaska Division of Geological & Geophysical

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Oxides; Rocks; STATEMAP Project; Trace Elements Top of Page Department of Natural Resources, Division of Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska Visiting Alaska State Employees DGGS State of Alaska search Alaska Division of Geological & Geophysical

Publications - GMC 370 | Alaska Division of Geological & Geophysical

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(249.0 K) Keywords Rare Earth Elements Top of Page Department of Natural Resources, Division of Surveys Skip to content State of Alaska myAlaska My Government Resident Business in Alaska Visiting Alaska State Employees DGGS State of Alaska search Alaska Division of Geological & Geophysical

Message from the Director | Galaxy of Images

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Search! Enter a search term and hit the search button to quickly find an image Go The above "Quick Search" box will find ANY words you type in. Use "*" to truncate a word (dog* will get more precise search, try the "Advanced Search" option below. More search options, including

Air Force Special Operations Command > Home > POTFF

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Air Force Special Operations Command Air Force Special Operations Command Join the Air Force Home Sheets AFSOC Senior Leaders AFSOC Heritage Units 1st Special Operations Wing 24th Special Operations Wing 27th Special Operations Wing 352nd Special Operations Wing 353rd Special Operations Group 492nd Special

Publications - GMC 350 | Alaska Division of Geological & Geophysical

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in the NPRA, Alaska as follows: Ikpikpuk #1 core, cuttings, and sidewall core; South Meade #1 cuttings; Brontosaurus #1 cuttings and core; Walakpa #1 core; and Walakpa #2 cuttings and core Authors follows: Ikpikpuk #1 core, cuttings, and sidewall core; South Meade #1 cuttings; Brontosaurus #1 cuttings

John Turner | NREL

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; International Journal of Energy Research 32 (5), 379-407. Ahn, K.S., Shet, S., Deutsch, T., Jiang, C.S., Yan, Y and Sustainable Energy, an AIP journal. Research Interests Dr. Turner has been recognized as a methods, definitions, and reporting protocols." Journal of Materials Research 25 (01), 3-16. Yin, W.J

NOAA's National Weather Service/Environmental Protection Agency - United

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Integration Image | Loop View | Daily View | Point Guidance | | Experimental Air Quality Guidance | Product Map To View Additional Guidance Graphic of Air Quality Forecast Guidance for the CONUS Mouse over or Image Alaska 1-Hr Average Ozone Concentration Image Hawaii 1-Hr Average Ozone Concentration Image 8-Hr

Climate Prediction Center - Outreach: 41st Annual Climate Diagnostics &

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the University of Maine Climate Change Institute and School of Earth and Climate Sciences and is co (drought, heat waves, severe weather, tropical cyclones) in the framework of climate variability and change and including the use of paleoclimate data. Arctic climate variability and change, and linkages to

Inclusion & Diversity

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Engineering Institute Information Science & Technology Institute Center for Space and Earth Science Management System Environmental Outreach Feature Stories Individual Permit for Storm Water Public Reading Management (First-line and Mid-level) (Engineering Management, Research Management, Technical Management

Research | NREL

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manufacturing, buildings efficiency, concentrating solar power, geothermal energy, transportation, water power Integration Facility Geothermal Energy Grid Modernization Hydrogen & Fuel Cells Integrated Energy Research Research Researching energy systems and technologies-and the science behind them-for a

Homepage P. Fischer, LBNL, Berkeley CA | UC Santa Cruz CA

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mesoscale magnetic x-ray microscopy and spectroscopy (ultra-)fast spin dynamics soft x-ray tomography of condensed matter x-ray optics publications presentations invited talks conference contributions curriculum

Facilities | Argonne National Laboratory

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Skip to main content Argonne National Laboratory Toggle Navigation Toggle Search Research Facilities Advanced Powertrain Research Facility Center for Transportation Research Distributed Energy Research Center Engine Research Facility Heat Transfer Laboratory Materials Engineering Research Facility

Defense Advisory Committee on Women in the Services (DACOWITS)

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Reports & Meetings News Articles 2018 Weekly Articles 2017 Weekly Articles 2016 Weekly Articles 2015 Weekly Articles 2014 Weekly Articles Latest Updates: The Next Quarterly Business Meeting is June 19-20