d-boroAla was previously characterized as an inhibitor of bacterial alanine racemase and d-Ala-d-Ala ligase enzymes [Duncan, K., et al Biochemistry 1989, 28:3541-9]. In the present study, d-boroAla was identified and characterized as an antibacterial agent. d-boroAla has activity against both Gram-positive and ...
PubMed
in substitution for Al. Breakdown of minerals, such as dumortierite, osumilite or boro-muscovite, may lead
E-print Network
can be included in modeling the language (Wang, 2000; Erdogan et al., 2002). In this article, we accuracy may indeed be two very different businesses after all. References Erdogan H. Sarikaya R. Gao Y
In order to protect carbon steel of towers and piping of a GS experimental heavy water plant against corrosion produced by the action of aqueous solutions of hydrogen sulphide, a method, elsewhere published, was developed. Carbon steel exposed to saturate...
National Technical Information Service (NTIS)
In order to protect carbon steel towers and piping of Girlder sulfide (G.S.) experimental heavy water plants against corrosion produced by the action of aqueous solutions of hydrogen sulfides, a method, previously published, was developed. Carbon steel, e...
The relationship between the degree of sensitization and the corrosion resistance of austenitic stainless steel has been reported since long time, however this relationship does not account for all the experimental results reported on the literature. The ...
In this work, metallic coatings of nickel was made over carbon steel using two different electrolytic solutions: The Watts's bath and the nickel sulfamate bath, using a pulse variable current. The method use was the traditional method, its means a thermos...
Phosphate coatings are inorganic crystalline deposits laid down uniformly on properly prepared surfaces by a chemical reaction with the treated base metal. The reaction consists in dissolving some surface metal by acid attack and then causing surface neut...
In order to protect carbon steel towers and piping of a GS experimental heavy water plant against corrosion produced by the action of aqueous solutions of hydrogen sulphide, a method, elsewhere published, was developed. Carbon steel exposed to saturated a...
This paper is part of a series which corresponds to the carbon steel behaviour as construction material for Girlder sulfide (G.S.) heavy water plants. The present work analyses the iron concentration study during passivation in the passivating fluid. At t...
In heavy water plants that use the bithermal exchange H(sub 2)S-H(sub 2)O, a protective scale against corrosion is formed by the action of a solution of H(sub 2)S at high temperature for a tile between 10 to 14 days. Exposure to humid air during plant shu...
The passivation on carbon steels, in particular ASTM A 516 Degree 60 and ASTM A 333 steels is made, submitting it to the action of H(sub 2)S/H(sub 2)O(sup 1,2) corrosive medium. The steel is rapidly corroded by H(sub 2)S in aqueous solution, forming iron ...
In order to protect carbon steel towers and piping of Girlder sulfide (G.S.) experimental heavy water plants against corrosion produced by the action of aqueous solutions of hydrogen sulfide, a method, previously published, was developed. Carbon steel, ex...
An ASTM A 516 degree 60 carbon steel superficial protection technique submitted to a hydrogen-water sulfide corrosive medium at 2 MPa of pressure and 40-125 deg C forming on itself an iron sulfide layer was tested. Studies on pH influence, temperature, pa...
This work describes the assays aimed to passivate the steel carbon of the process pipings. This steel is marked by the ASTM A 333 G6 and is chemically similar to those of isotopic exchange towers which corrode in contact with in-water hydrogen sulfide sol...
would require low B-field (magnetic field damping after ... VHE �-rays. H.E.S.S. prelim. HESS VHE excess map. XMM map (2-4.5 keV) smoothed to HESS PSF preliminary ... B&W map: ATCA 1.4 GHz. Tian et al., ApJ 2008. Color map: H.E.S.S. �-ray excess ... Matching increase in absorption derived from 12CO observations ...
NASA Website
Studies to produce continuous polycrystalline aluminum oxide filaments by vacuo-thermal conversion of precursor aluminum-boro-phosphate glass filaments are described. A field of compositions in the ternary Al2O3.B2O3.P2O5 system containing up to 60 percen...
As complement to the experiences on carbon steel passivation for its use in G.S. (Girlder sulfide) heavy water production plants, the results herein obtained are given, processing the material with a saturated solution at 2.3 MPa of full pressure and 125 ...
To better understand the structural basis for the observed patterns in substrate specificity, the backbone dynamics of R-lytic protease have been investigated using N relaxation measurements. The enzyme was inhibited with the peptide boronic acid N-tert-butyloxycarbonyl-Ala-Pro-boroVal [Kettner, C. A., et al. (1988) Biochemistry 27, 7682], which ...
A study is made of some factors affecting the spectrophotometric determination of boron traces with carmin The influence of the carmin origin, the stability of the canmin-boric acid complex with respect to the sulfuric acid concentration the interference produced by nitrate ions, and the effects of uranyl ions and light are discussed. (tr-auth)
Energy Citations Database
One of the difficult problems in considering the effect of electron-positron interaction in metals is the fact that real materials differ from the electron gas. The most sophisticated theories of this interaction concern just this abstract substance. Bonderup et al. proposed that the local enhancement of the electron density on the positron in the lattice is a function of the ...
NASA Astrophysics Data System (ADS)
... been recorded in the diet1. Terrestrial A small police outpost was established on the island in 1969. ... 40 birds, but given its high levels of recruitment, this is probably not a serious threat, t...
NBII National Biological Information Infrastructure
... flume to its south, where it connects to Boro River, one of the five main river channels ... 2003, water was flowing into the floodplain from Boro River. In 2004, this happened at the beginning ... ...
13 Oct 2010 ... En ambientes de muy baja gravedad, en cambio, no se necesita ning?n ... hechas de aleaci?n de titanio, vidrio met?lico, y acero inoxidable. ...
The publication presents the papers delivered in a workshop about trials and selection of the steels and their thermal treatments for stamping industry.
... including a direct microscopic examination and sodium nitrate flotation, completed during quarantine in May 2002 were negative ... negative for acid-fast staining organisms. Four fecal flotation examinati...
Initial Environmental Impact Assessment. 1991. J.M. Acero, J.L. Agraz, C.A. Aguirre and J. Plotz. Instituto Antartico Argentino and Alfred Wegener Institut ...
-- 116. Bhattachary, D. 1998. Enviromental values: a critical ap� praisal of cost�benefit analysis
Environmental impact assessment associated with the salvage operation of the ... Initial Environmental Impact Assessment. 1991. J.M. Acero, J.L. Agraz, C.A. ...
grant (FA9550-04-1-0117), an AFRL grant via Veridian and an NSF grant (IIS-0534707). We thank A. Acero
The purpose of the publication is to explain in an easy way the traditional process of steel manufacturing, and to promote the interest of the foundrymen working without large investment.
Many tropical fruits are rich in anthocyanins, though limited information is available about the characterization and quantification of these anthocyanins. The identification of anthocyanin pigments in four tropical fruits was determined by ion trap mass spectrometry. Fruits studied included acero...
Technology Transfer Automated Retrieval System (TEKTRAN)
A liquid bridge is a mass of liquid sustained by the action of the surface tension force between two parallel supporting disks Apart from their basic scientific interest a liquid bridge can be considered as the simplest idealization of the configuration appearing in the floating zone technique used for crystal growth and purification of high melting point materials footnote Messeguer et ...
Results of the phase one tests have demonstrated that the neutron-shielding concept described in this paper is a viable design option for spent fuel shipping casks. The tests have shown that the Boro-silicone 236 shield is superior to the other shield materials considered. Repeated TGA, aging and fire tests demonstrated the reliability of the data. A second phase of the test ...
... of steels has been investigated in order to develop a new 12% chromium heat ... Boron forms boro-carbide which is finer in structure than carbides at ...
DTIC Science & Technology
example, and the Theorem of Witsenhausen A smallest counter example to the conjecture of Endre Boros has, 1998] And by the \\Theorem of Witsenhausen", that every addressing of the complete graph Km needs
... Corporate Author : Personal Author(s) : O'Keefe, Christian V. ; Djordjevic, B. Boro ; Ranganathan, BN. Report Date : 1994. ...
these new pillars, a Rogue SNR-800 was installed in Troms�, and a Rogue RM-12 at Ny- .... BOR1BORO are presented in Table 2. Table: 1 Results obtained from ...
The solubility of hafnium in these borosilicate glasses is determined as a function of glass composition from peralkaline to peraluminous.
... Corporate Author : Personal Author(s) : Ehrlich, Michael J. ; O'Keefe, Christian V. ; Djordjevic, B. Boro ; Ranganathan, BN. Report Date : 1994. ...
... silicon nitride, and boro- silicate crown glass. ... Fracture Testing of Ceramics, Ceramic Eng. ... Hooper, Indentation Creep in Zirconia Ceramics Between ...
Data Latency (Quarter 4 2002). 0. 12. 24. 36. 48. 60. 72. Boro ... Data Latency. Performance Standard is 12 hours. Good.
... point in relation to Lacconotus punctatus LeConte (Mycteridae), Boros unicolor Say, Lecontia discicollis (LeConte) (Boridae), Pytho seidlitzi ... ...
This article reports on the development and spectral results of Eu(3+) and Tb(3+) ions doped cadmium lithium alumino fluoro boro tellurite (CLiAFBT) glasses in the following composition. 40TeO2-30B2O3-10CdO-10Li2O-10AlF3 (Hostglass) (40-x)TeO2-30B2O3-10CdO-10Li2O-10AlF3-xEu2O3 ...
The electron-positron interaction greatly complicates the interpretation of positron annihilation data. The two-detector Doppler measurements of Mijnarends et al. as well as our theoretical calculations point at the conclusion that the local density approximation to e+-e- interaction is a good way of treating this problem in real metals, at least the simplest ones. This shows ...
Earlier we reported that an open reading frame located at 89.5 min of the Escherichia coli map (ORFI) codes for a protein of unknown function that could be overexpressed and purified to homogeneity (G. Balik�, A. Raukas, I. Boros, and P. Venetianer, Mol. Gen. Genet. 211:326-331, 1988). In the work described here, we attempted to learn the function of this protein by ...
PubMed Central
Calcium-boro-aluminate (CABAL) glasses have been developed for use as electrically insulating sealing glasses in lithium ambient-temperature batteries. CABAL glasses have superior corrosion resistance in lithium/electrolyte environments relative to TA-23,...
Schwertmannite, an iron oxyhydroxide sulfate nanomineral, plays a significant role in the geochemistry of acid mine drainage (AMD) as a metastable phase with respect to goethite and by retaining toxic metals, e.g. arsenic [1]. Schwertmannite�s characteristic morphology is needles 100-300 nm long and only 5-10 nm in diameter extending from a dense aggregate. The poorly-and nano-crystalline nature ...
Results of experiments with steels and cast irons containing 1 to 5% B are reported. Addition of Cr improved strength but reduced ductility. However it considerably improved the mechanical properties at 300 deg C. The notchbar test of toughness of steels containing more than 1% B yielded low values (owing to the presence of Al in the alloy). The decrease in ...
A relationship between the solubility of hafnia (HfO2) and the host glass composition was explored by determining the solubility limits of HfO2 in peralkaline and peraluminous borosilicate glasses in the system SiO2-Al2O3-B2O3-Na2O, and in glasses in the system SiO2-Na2O-Al2O3 in air at 1450 C. The only Hf-bearing phase to crystallize in the peralkaline ...
G reenb elt. Ch angchu ..... Kogan ei. Chan gc h u n. We ttze ll. C oncepcion. Boro w iec. Beijin g. Po ts dam. Shangh ai. Simosato. Arequip ...
technique. Colloids Surf B Biointerfaces 11:273�279 Zhou JWL, Chan H-Y, To TKH, Lai KWC, Li WJ (2004
, H., Holterman, A. X., Yoo, K. W., Franks, R. R., and Costa, R. H. (1999) Premature expression., Creighton, P., Erven, A., Boros, A., Gulya, K., Capecchi, M. R., and Humphries, P. (1997) Retinopathy
Highlights of the BNCT Research Programs during October include the progress within several areas. Topics include: gross boron analysis in tissue blood and urine, analytical methodologies development for BSH (sodium borocaptate) purity determination, boro...
Highlights of the PBF/BNCT Program during January include progress within the areas of: gross boron analysis in tissue blood and urine (large numbers of biological samples continue to be analyzed), analytical methodologies development for BSH (sodium boro...
of Witsenhausen A smallest counter example to the conjecture of Endre Boros has the clause] And by the "Theorem of Witsenhausen", that every addressing of the complete graph Km needs at least m - 1
nak. -2. Boro w iec. Maida nak. -1. Bias S tability. (m m). CSR. MCC. Long Term Bias Stability. Performance Standard is 20 mm ...
During the three years of the study, work has concentrated on the formulation of two phase materials, alumino-silicates and boro-silicates doped with potassium or lithium, and their processing. Variations in the formulations tested for the glasses include...
During the second year, work has concentrated on the formulation of two phase materials, alumino-silicates and boro-silicates doped with potassium or lithium, and their processing. Variations in the formulations tested for the glasses include metal ratios...
Table I11 also contains values of PC and PcC that were calculated with ...... . 7806 .01074 .00771 .01233. [ 0/*45] .7375 .01250 .00770 .01477 c -1451 2s ...
The thermal stability and mechanical behavior of three partially volatile candidate neutron shield materials have been evaluated. The results indicate that silicone based rubbers, impregnated with elemental boron or boron carbide, Boro-silicone 236 and Bi...
The scanning topics included in this two part series are the chemicals and subject areas as follows: Acetonitrile, acrylonitrile, arsenic, aryl phosphates (phenyl, cresyl, mixed phenyl-cresyl), asbestos, benzidine, and salts (hydrochloride, sulfate), boro...
A two-determinant approximation which allows for correlation via exchange between all s-electrons and the valence electrons is the subject of this summary. Three general methods were tried: (a) analytic Slater-type orbitals applied to ground state of boro...
... janury 17 13 Ril 13 90 14. ... 2-liquid clouds (after A. M. Boro- vikov and L. 0. Sakhnko) 3 - liquid clouds (after Peppler) P. DeNtermination Techniouim. ...
... Washington Meeting was called to order by Yoseph Bar-Cohen at 12:10 p.m. The ... E. James Chern, Robert Day, John Cox, Rolf Diederichs, Boro Djordjevic, ...
The methods of preparation of boron halide-phosphorus halide complexes are outlined, and some of the physical properties of these materials are discussed. Complexes involving boron iodide and boron bromide are relatively stable, while those involving boro...
... Corporate Author : Personal Author(s) : KROLL,MARVIN ; DJORDJEVIC,B. BORO. Report Date : OCT 1982. Pagination or Media Count : 3. ...
AC Conductivity measurements have been used to study the transport properties of PbI2 doped silver boro-vanadate glasses prepared by melt quenching technique. The samples are characterized by XRD and DSC measurements. A correlation between R?, the decoupling index and ?dc has been observed. The observed conductivity values suggest enhancement in conductivity by the ...
The boron neutron capture therapy (BNCT) has shown better prognosis in the treatment of glyemas and gluoblastomas grade III and IV than other therapies. During the treatment the levels of Na(sub 2)(sup 10)B(sub 12)H(sub 11)SH must be known in several comp...
Di- and tripeptide boro-amino acid analog protease inhibitors with specificity for chymotrypsin and elastase decrease the number of melanotic foci formed in the lungs of mice in the B16BL6 experimental metastatic tumor model. These effects were at significantly lower concentration than leupeptin or other natural chymotrypsin inhibitors previously reported. These results ...
The rice paddy eel, Pisodonophis boro (P. boro), is of special interest because of its peculiar burrowing habits. P. boro penetrates the substrate tail-first, a technique common for ophichthids, but it is able to burrow head-first as well. P. boro exhibits three feeding modes: inertial feeding, grasping, and ...
Rare earth elements have been used as optical dopants in glasses for many years. Boro-silicate glass films doped with rare-earths were deposited on glass substrates by using a simple sol-gel method. To avoid the undesirable precipitation due to the different hydrolysis rates between silicon and boron alkoxides, two solutions were used for dip-coating separately. One solution ...
High arsenic (As) concentrations in soil may lead to elevated concentrations of arsenic in agricultural products. Field experiments were conducted to examine the effects of water management (WM) and Phosphorus (P) rates on As uptake, rice growth, yield and yield attributes of winter (boro) and monsoon (aman) rice in an As contaminated soil-water at Gobindagonj, Gaibandha, ...
13 Oct 2010 ... El acero inoxidable es una aleaci?n (mezcla de hierro, n?quel y cromo), as? como lo es la mayor parte de la orfebrer?a (oro y n?quel). ...
The Atlas summarizes the experience of almost two decades of applied research in the siderurgical industry (IAS-CNEA joint agreements), by means of hot torsion test to evaluate the hot workability in steels through ductility properties and the formation s...
Within the framework of the development of low activation structural materials to be used in nuclear fusion reactors four martensitic Fe-9,5 Cr alloys were conceived with different contentsof tungsten-tantalum and/or germanium as substitutions for Mo, Ni,...
Ion nitriding is a glow discharge process that is used to induce surface modification in metals. It has been applied to 316-L austenitic stainless steel looking for similar benefits already obtained in other steels. An austenitic stainless steel was selec...
The main objective of the work was to determine the most common defects occuring in tool steels of the AISI D-2, S-1, 0-1 and W-2 series during thermal treatment. Defects were evaluated by metallographic analyses, a method used to determine and recognize ...
This is a theoretical-experimental laboratory study on the Electroslag Remelting Technology (ESRT) of high quality steels. The objective of this study was to analyze the problems that this technology entails and thus facilitate its industrial application ...
Maraging steel fabrication process metallurgy and cost effectiveness were investigated. Experimental melts were carried out in an induction furnace under argon atmosphere, and alternatively with vacuum remelting or direct induction melting under vacuum. A...
The experimental study focused on the behavior of six different steels, of approximately 0.35% C and various contents of Cr, Ni, and Mo. Each of these steels were tested in order to determine its fatigue limit to 10 million cycles, in 5 different states (...
Sensitization is a cause of corrosion that has been widely studied in austenitic steels; however, the relationship between sensitization and mechanical properties of steel is less known. Therefore, the objective of this work is to study the mechanical pro...
Telemetry Systems, Isanti, MN, USA; Holohil Systems, Carp, ON, Canada). All radios were attached ventrally-knobbed hornbill Aceros cassidix during the non-breeding season. � In: Poonswad, P. (ed.), The Asian hornbills
The intergranular stress cracking of welded joints of austenitic stainless steel, AISI 304, is a serious problem in BWR type reactors. It is associated with the simultaneous presence of three factors; stress, a critical media and sensibilization (DOS). EP...
Corrosion susceptibility under stress of AISI 304 steel sensitized in a sodium thiocyanate solution has been studied and results were compared with those obtained with solutions of thiosulfate and tetrathionate. Sensitized steel type 304 is highly suscept...
The relationship between: microstructure-heat treatment, microstructure-mechanical properties, microstructure-corrosion resistance make that the study of the microstructure of metals and alloys be a powerful tool either in technical-scientific research as...
With this work it is demonstrated the possibility of performing the nitriding process by using a CVD-ECR source, based on the results obtained after treating several samples of AISI H-12 steel. Also, the main operating parameters (time of treatment, sampl...
The peak stress and the steady state values for free cutting, carbon and alloyed steels deformed at high temperatures were obtained in this paper as a result of two regressions. With these data and the peak deformation values obtained in a former work, st...
'anodo de carb'on, reaccionando con 'el y produciendo di'oxido de carbono (ver [8]). En los ' ultimos a aislantes. Contiene un c'atodo formado por un bloque de carb'on atravesado por una barra de acero en cuyo
The purpose of this study is to investigate the localization of long-range hydroacoustic events, such as sub-sea earthquakes and underwater explosions, received at a single monitoring station. A matched-field technique is used to predict synthetic waveforms that would be received at a hydroacoustic station for a given source location. A grid of potential source locations is selected based on the ...
Based on the structural comparison of the S-1 pocket in different trypsin-like serine proteases, a series of Boc-D-trimethylsilylalanine-proline-boro-X pinanediol derivatives, with boro-X being different amino boronic acids, have been synthesised as inhibitors of thrombin. The influence of hydrogen donor/acceptor properties of different residues in the P-1 ...
de la meteorizaci�n de una balsa de residuos pir�ticos Patricia Acero Salazar #12;Estructura del proyecto Evoluci�n flujo y transporte reactivo en zona no saturada de balsas de residuos pir�ticos residuo (Tailings) Presa Capa agua anti-oxidaci�nEvaporaci�n O2 Tongadas sucesivas #12;O2 #12;Objetivos del
The susceptibility of a 17-4PH type steel to Stress Corrosion Cracking (SCC) in low pressure steam turbine environments was assessed using slow strain rate test at 90 Centigrade and at 1.35x10(sup -6) seg(sup -1). Environments tested included different co...
Neutral glycosphingolipids immobilized on plastic surfaces were specifically radiolabeled with the galactose oxidase-sodium boro(/sup 3/H)hydride method. Glycolipids could be immobilized in the absence of any other lipids such as phosphatidylcholine and cholesterol. Rather, the presence of these lipid components decreased the efficiency of radiolabeling. Glycolipids having ...
Based on the structural comparison of the S1 pocket in different trypsin-like serine proteases, a series of Boc-D-trimethylsilylalanine-proline-boro-X pinanediol derivatives, with boro-X being different amino boronic acids, have been synthesized as inhibitors of thrombin. Among the novel compounds, a number of derivatives were synthesized which appeared to ...
A new Bi-doped boro-alumino-phosphate glass (BAP) composition was developed. Absorption and emission spectra and luminescence decay kinetics were investigated. The emission spectrum consists of two wide bands in the visible (0.6 0.8 ?m) and near-infrared (�1.0 1.5 ?m) ranges. The luminescence decay curve investigation has revealed a complicated behavior dependent on both ...
This paper describes EPR studies on x V2O5-(40-x)ZnO-60B2O3 (where x = 5, 10, 15 and 20 mol %) glass system. These studies indicate a strong compositional dependent trend and existence of characteristic boro-vanadate groups in these glasses. The EPR spectra show a distinct hyperfine structure of 51V. Spectral analysis shows that the vanadium is present in the glass as vanadyl ...
The most common and plesiomorphic mechanism of food transport in tetrapods is lingual-based. Neognathous birds use this mechanism for exploiting a large diversity of food resources, whereas paleognathous birds use cranioinertial mechanism with or without tongue involvement. Food transport in three hornbills' species (Aceros cassidix, A. undulatus, and Buceros hydrocorax) is ...
Feb 17, 1995... IGS Electronic Report Fri Feb 17 12:13:49 PST 1995 Message .... HART* BRMU BRUS MDO1 TSKB AREQ BORO DAV1 EISL KIT3 CAS1 POTS BOGT KERG ...
Feb 6, 1995... 22 13 49 27 47 28 28 15 14 33 31 35 30 12 16 37 36 30 16 29 14 12 ... BRMU BRUS MDO1 TSKB AREQ BORO DAV1 EISL KIT3 CAS1 POTS BOGT KERG ...
Dec 11, 1994... 331 16 29 28 27 31 29 53 27 9 27 13 26 17 49 30 13 30 6 25 50 14 53 ... BRMU BRUS MDO1 TSKB AREQ BORO DAV1 SEIS KIT3 CAS1 POTS BOGT KERG ...
Oct 10, 1994... 24 24 22 14 12 25 40 22 38 41 35 272 48 25 16 20 43 47 23 13 18 14 17 ... SANT* MCMU TAIW HART* BRMU BRUS MDO1 TSKB AREQ BORO DAV1 EISL ...
To improve the tenacity and reliability of ceramics, the fiber reinforced ceramics composites compounding high strength long fibers and ceramics have been investigated. In this study, carbon fibers were selected as reinforcement fibers. The hexagonal boro...
Concentrated hydrogen peroxide has been stored in 5 gallon containers for periods over1 year at 25 o C with active oxygen loss by decomposition of less than 0.1% per year. The containers were boro-silicate type glass vessels, Aclar lined vessels, electrop...
Boron can be determined quantitatively by absorption spectrophotometry of solutions of the red compound formed by the reaction of boric acid with curcumin. This reaction is affected by various factors, some of which can be detected easily in the data interpretation. Others, however, provide more difficulty. The application of modern statistical method to the study of the influence of ...
... the museum by Soviet military troops in 1956 (Boros 1957, F�ldv�ri and Papp 2007). Material examined.�CALIFORNIA: Los Angeles County, 1? (USNM). Orange County, Balboa, 13-VII-1940, 2? (USNM); Capistrano Be...
The report describes the proposed arterial facility, a two (2) lane roadway consisting of 2-12' lanes and 2-10' paved shoulders. In anticipation of future needs a four (4) lane right-of-way will be acquired as recommended by the Lackawanna-Luzerne Transpo...
Research, grant N00450�93�1�0133, to Rutgers University. He thanks Endre Boros, Jeannette Janssen, and Jeff Kahn for their helpful comments, and Jeff Kahn for suggesting a shortened proof for Proposition C. He (Erd�os, Rubin, and Taylor [1979]). But ch 0 and � 0 are equal in every graph for which these two
START_TIME = 2009-10-17T02:13:20.472. STOP_TIME = 2009-10-17T02:13:27.277 ...... {{}wv��pemtpuong`cxuuvv��zsrqhdakywoc`boro{�~uz}|�{xpquopuxnqurtrgfhn~}sux| ...
a new class of antineoplastic agents (Adams, 2004). One such inhibitor, bortezomib (VELCADE), has been developed by chemical synthesis. Only two classes of inhibitor (peptide boro- nates, e.g., bortezomib
Anguilliform or eel-like fishes are typically bottom dwellers, some of which are specialized burrowers. Although specializations for burrowing are predicted to affect the kinematics of swimming, it remains unknown to what extent this is actually the case. Here we examine swimming kinematics and efficiency of two burrowing anguilliform species, Pisodonophis boro and ...
that are present in about 57 plant families (Boros & Stermitz 1990). Plantago lanceolata (Planta- ginaceae- species� experiment. Buckeyes (Junonia coenia) reared on Plantago lanceolata (high iridoid glycoside plant Nouhuys, S. & Biere, A. (2005). Effects of quantitative allelochemicals in Plantago lanceolata
For the determination of boron in carbonaceous materials (high purity graphite, coals and their processed products, such as ashes and slags from thermoelectric power plants) by atomic emission spectroscopy with direct current arc excitation and photograph...
Boron Neutron Capture Therapy (BNCT) of a well-pigmented B16 melanoma implanted subcutaneously in the mouse thigh has been carried out at the Brookhaven Medical Research Reactor (BMRR) using the synthetic amino acid p-boronophenylalanine (BPA) as the boro...
dipeptide Pyz-Phe-boroLeu, known as Bortezomib or VelcadeH, as a drug for the treatment of multiple myeloma localization signal. However, upon treatment with known proteasome inhibitors (e.g. MG132, Bortezomib and ALLN inhibitors (MG132 and Bortezomib). The cells were then fixed and scored for nuclear translocation of PIR
Boron is a bioactive element of low molecular weight. Since discovery of the first boron biomolecule, boromycin, in 1967, several other similar biomolecules are now well-characterized. Most recently described was a bacterial cell-to-cell communication signal that requires boron, autoinducer-II. Boro...
In this work we present an introduction of the electrophoretic process followed by a detailed experimental treatment of the technique used in the determination and optimization of the (zeta)-potential, mainly as a function of the electrolyte concentration...
Process of baron electrophoresis depositon on large areas of aluminum substrates was developed with the aim of using them in the construction of neutron detectors. After definition and optimization of the boron electrophoresis parameters, depositions of (...
Radiotherapy is indispensable as a mean to eradicate deeply or infiltrating tumor tissue that can not be removed surgically. Therefore, it is not selective and may also kill the surrounding health tissue. The principle of BNCT (Boron Neutron Capture Thera...
... Page 5. Page 6. Page 7. Page 8. Page 9. Page 10. Page 11. Page 12. Page 13. Page 14. Page 15. Page 16. Page 17. Page 18. Page 19. Page 20. Page ...
This paper reports on the development and spectral analysis of Sm3+ (1.0%) and Dy3+ (1.0%) doped lithium-boro-tellurite glasses. A bright orange (4G5/2-->6H7/2) along with a red (4G5/2-->6H9/2) and a yellow (4G5/2-->6H5/2) emission transition have been measured from Sm3+ doped lithium-boro-tellurite glass. Both blue (4F9/2-->6H15/2) and yellow ...
A detailed intralaboratory comparison of the determination of arsenic in complex wastewater samples by hydride generation and graphite furnace atomic absorption techniques has been conducted. Two hydride generation techniques were employed. One consisted of the use of sodium boro...
EPA Science Inventory
Dy3+ doped Boro-tellurite glasses were prepared by following melt quenching technique with the chemical composition (69-x)H3BO3+xTeO2+15Mg2CO3+15K2CO3+1Dy2O3 by varying the tellurium dioxide content as (x = 0, 10, 20, 30 and 40 wt%). The structural and optical properties have been studied through FTIR, absorption and emission spectra. The UV-vis-NIR absorption spectra were ...
Sodium boro[3H]hydride reduction of tyrosine decarboxylase from Streptococcus faecalis followed by complete hydrolysis of the enzyme produces epsilon-[3H]pyridoxyllysine. Degradation of this material to [4'-3H]pyridoxamine and stereochemical analysis with apoaspartate aminotransferase shows that the re side at C-4' of the cofactor is exposed to solvent at pH 5.5 and 7.0. After ...
Eu3+ doped boro-tellurite glasses have been synthesized and its optical behavior have been studied and reported. The presence of varying tellurium dioxide content results changes in spectroscopic behavoir were explored through UV-VIS, and Luminescence spectra. The bonding parameters have been calculated based on the observed band positions of the absorption spectra. The ...
Val-boroPro, 1, is a potent, but relatively nonspecific inhibitor of the prolyl peptidases. It has antihyperglycemic activity from inhibition of DPPIV but also striking anticancer activity and a toxicity for which the mechanisms are unknown. 1 cyclizes at physiological pH, which attenuates its inhibitory potency >100-fold, which is a "soft drug" effect. Here we show that ...
To investigate the modification effect of the modifier ZnO on boro-tellurite glass, a series of glasses with compositions 50B2O3�(50?x)ZnO�xTeO2 have been prepared by conventional melt quenching technique. Amorphous nature of the samples was confirmed through X-ray diffraction technique. Optical absorption and IR structural studies are carried out on the glass system. The ...
A lithium-boro-silicate glass of composition 55, 11 and 34 mol.% SiO2, B2O3 and Li2O, respectively, was investigated to study the effect of SmF3, Nd2O3 or Nd2O3 and UO2 on its optical absorption in the spectral range 300-900 nm. The effects of gamma irradiation were also studied. The spectral absorption of the glasses before and after irradiation was measured in the range ...
Extensive measurements at the Oak Ridge National Laboratory (ORNL) with BoroBond{trademark} blocks of varying thickness, natural boron carbide (B{sub 4}C) content, and water content, and with a simplified mockup of the Rackable Can Storage Box (RCSB) of fixed natural B{sub 4}C and water content, have led to a method of quantifying the water content of RCSBs by fast neutron ...
Lithium boro tellurite (LBT) glass doped with neodymium oxide has been prepared and characterized by XRD, FTIR and SEM analysis. Judd-Ofelt theory has been applied to evaluate the best fit intensity parameters. The trend found in the JO intensity parameter is ?6>?4>?2 If ?6>?4, the glass system is favourable for the lasing emission 4F3/2?4I11/2 in the IR wavelength. ...
Multilayer transparent conducting zinc oxide films have been prepared on boro-silicate substrates by the commercially sol gel dip coating process. Each layer was fired at 550�C in a conventional furnace for 15 min. The final coatings were then tempered under a flux of forming gas (N2/H2) at 400�C for 2 h. The coatings were characterized by surface stylus profiling and ...
Capture and storage of carbon dioxide in deep geologic formations represents one promising scenario for minimizing the impacts of greenhouse gases on global warming. The ability to demonstrate that CO2 will remain stored in the geological formation over the long-term is needed in support of widespread implementation decisions, and knowledge of mineral-fluid chemical transformation rates is an ...
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After an exceptionally smooth test period, the high-level waste vitrification plant at Marcoule, France, (initially a demonstration plant) now operates on a routine industrial basis. At the plant, backlogged military waste is solidified, and natural uranium fuel is reprocessed. Boro-silicate glass was selected as the preferred solidification route. The pilot plant at Marcoule ...
A radiometric method based on substoichiometric isotope dilution analysis using 1,10-phenanthroline and a substoichiometric amount of eosin was developed for determining trace amounts of zinc. Evaluation of various metal ion interferences shows that as little as 0.2 {mu}g Zn could be determined in an aqueous-phase volume of 60 mL. The method has been successfully applied to the determination of Zn ...
This paper describes thermal, physical and spectroscopic properties of glasses prepared by a novel micro wave method. These studies exhibited a strong compositional dependent trend and existence of characteristic boro-vanadate groups in these glasses. The scheme of modification of borate and vanadate groups is controlled by Sanderson's electronegativity principle. Analysis of ...
Based on the atomic superposition approximation (ATSUP) and first-principles pseudopotential plane-wave methods, the bulk and Mg mono-vacancy positron lifetime of magnesium oxide were calculated using Arponen�Pajamme and Boro?ski�Nieminen positron-annihilation-rate interpolation formula respectively. The calculated values are in good agreement with experimental values and ...
.n.(AUA). FRANKLIN: 3 mi S of Russel- ville, Isley 4903 (US). HALE: Tanglewood, Williams 314 (UNA). HENRY: Co Hwy 97- boro via Rte 32, Henry s.n. (CM); Sand Mt., Bryant, Porter s.n. (GH). JEFFERSON: Birmingham, Anonymous s.n. (TENN); South Shades Crest Mt, Bessemer, Carter s.n. (AUA); Crawford Fire Tower, 7 mi W
in the co-diffusion of arsenic and boron in polysilicon/monocrysta1llne Si bilayers, during the formation Phosphorus-doped silicon. P-type 8-15 Q cm Boron-doped silicon wafers are also used for sheet resistance processed samples during the rapid thermal annealing, 400 nm of boro-phospho silicate glass were also
A method for the analysis of trace germanium in marine sediments by HG-AFS has been investigated. The experimental conditions such as the acidity of reduction reaction, the amount of sodium boro-hydride, the carrier gas flow rate, etc., were tested and optimized by using a kind of orthogonal design. The detection limit of the presented method is 0.95�gL1 for germanium. The ...
lettera corrispondente all'alternativa esatta): (a) L'idruro di boro (BH3) � una molecola: a) planare corrispondente all'alternativa esatta): (c) Qual � l'ordine di legame della molecola di azoto N2 ? a) 1 b) 2 c) 3 enzima �: a) una proteina sintetica b) una proteina che agisce su un substrato specifico c) una molecola
Catalases which had been purified from the livers of mouse, rat and guinea pig were subjected to mild periodate oxidation followed by reduction with sodium boro[3H]hydride in order to test for the presence of sialic acid. A radioactively labelled moiety resulted, which behaved as a derivative of N-acetyl neuraminic acid during mild acid hydrolysis, neuraminidase treatment, ion ...
Changes in the thermal climate due to inter-annual climatic variability can potentially modify existing cropping pattern by forcing farmers to rearrange transplanting and harvesting dates. In the present study, a crop climate model, the YIELD, has been applied to 12 meteorological stations located in major rice growing regions in Bangladesh to estimate the effect of thermal climate variations on ...
Fish swimming is probably one of the most studied and best understood locomotor behaviors in vertebrates. However, many fish also actively exploit sediments. Because of their elongate body shape, anguilliform fishes are not only efficient swimmers but also very maneuverable. Consequently, many species live in complexly structured environments near the bottom and many are known to burrow into the ...
Tormac is a stuffed toroidal line cusp: the magnetic field is divided into two distinct regions, i.e., an outside ''sheath'' layer where the plasma is mirror-confined on open field lines and an internal high-..beta.. region of closed nested flux surfaces. The sheath is arranged with the appropriate curvature to ensure absolute MHD stability everywhere. The bulk ...
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The rice xa5 gene for disease resistance to Xanthomonas oryzae pv. oryzae has been positionally cloned and encodes the gamma subunit of transcription factor IIA (TFIIAgamma). TFIIAgamma is a general eukaryotic transcription factor with no previously known role in disease resistance. xa5 is unusual in that it is recessive and does not conform to one of the typical resistance gene structural ...
The Industrial Lane site encompasses approximately two square miles in Williams Township, Northampton County, Pennsylvania. A portion of the Chrin Landfill, a Pennsylvania Department of Environmental Resources permitted landfill, is on the site as are several active and abandoned industrial properties, commercial establishments, railroads and farming/residential areas. As a result of the detection ...
The presence of fibronectin (FN) has been investigated during the early development of Pleurodeles waltlii by using indirect immunofluorescence and gel electrophoresis methods. Between the early blastula and late gastrula stages, fluorescent staining was detected on cell surface, especially in cells from the blastocoele roof and the marginal zone. Through gastrulation, extracellular material which ...
Thermodynamic analyses were performed to evaluate the composition ranges for metastable immiscibility including spinodal decomposition in multi-component silicate systems, where glass was regarded as a super-cooled liquid phase. Experimental studies on two-phase separation in glass were carried out, and the phase separation was observed in those silicate glasses corresponding to calculated ...
The title compound, LiMn(H(2)O)(2)[BP(2)O(8)]�H(2)O, is built up of an open framework of helical borophosphate ribbons inter-connected by MnO(4)(H(2)O)(2) octa-hedra, forming one-dimensional channels along [001] occupied by Li(+) cations and disordered H(2)O mol-ecules (site occupancy 0.5). The Li cations reside in two partially occupied sites [occupancies = 0.42?(3) and 0.289?(13)] near the ...
Arponen and Pajanne suspected that the strong internal electric field of a real lattice decreases the contact density of electrons on the positron in comparison to expectations based on jellium calculations. In this work we propose an approach to this problem which indeed leads to decreasing annihilation rates of positrons in real metals. This is due to higher Fourier components of the Bloch ...
The thermal stability and mechanical behavior of three partially volatile candidate neutron shield materials were evaluated. The results indicate that silicone based rubbers, impregnated with elemental boron or boron carbide, Boro-silicone 236 and Bisco NS-I respectively are more thermally stable than are borated beechwoods, e.g., Permali JN. Mechanical property measurements ...
Porcelains with leucite crystals dispersed into various glass matrices were prepared for investigating the effects of the leucite crystals on the mechanical strength of glassy porcelain. The strength of glassy porcelains containing leucite crystals was affected by the differences of thermal expansion coefficients, compositions and deformation temperatures of the glass matrices. In the case of a ...
[reaction: see text] Treatment of DoM-derived silylated aromatics 2-4 under standard electrophilic halogenation conditions cleanly affords ipso-desilyation products 5-7, while nitration of methoxy-substituted analogues 8, 9 leads to non-ipso isomers 10, 12 and 11, 13, controlled by a silicon steric effect. Sequential ipso-borodesilylation of 2a, 3a, and 20 followed by treatment with aryl halides ...
Candidate materials for improving the durability and economics of solar energy conversion systems (SECS) are reviewed. A 30-yr lifetime is regarded as necessary for solar collector and concentrator materials in order to offset the high initial costs of SECS in parabolic dish, heliostat, parabolic trough, flat plate collector, OTEC, solar cell, and wind turbine configurations. The materials are ...
y accepted and an experimental review of the quinalizarine method were performed. The reagent sodium alyzarinsulfonate was tested for the determination of very small amounts of boron. lt has patent advantages over other reagents proposed. The boric acid was extracted by distillation in a closed run as methylboric ester. The wavelength of maximal sensibility 5600 A was deduced from the ...
Arsenic (As) finds its way into soils used for rice (Oryza sativa) cultivation through polluted irrigation water, and through historic contamination with As-based pesticides. As is known to be present as a number of chemical species in such soils, so we wished to investigate how these species were accumulated by rice. As species found in soil solution from a greenhouse experiment where rice was ...
The effect of single oxide additions of calcia, titania, ceria, bismuth oxide and zinc oxide on the devitrification tendencies of a barium-boro-silicate glass was investigated. Coated specimens on type 347 stainless steel were examined by x-ray diffraction after exposures at 871 deg C for times up to 150 hours. All of the additions studied delayed to some exent the ...
Ecosystem respiration (RE) from cultivated ecosystems is important for understanding the role of these ecosystems in the global carbon balance. To evaluate carbon dynamics in a double-rice cropping paddy field, we conducted long-term measurements at Mymensingh, Bangladesh in 2007 using a tower-based eddy covariance technique. The study objectives were to investigate the diurnal and seasonal ...
Nano- and hetero-structures of carbon nanotube (CNT) and indium tin oxide (ITO) can control significantly piezoelectric and optoelectronic properties in Microelectromechanical Systems (MEMS) as sensing and actuator under cyclic loading. Optimized preparing conditions were obtained for multi-functional purpose of the specimen by obtaining the best dispersion and turbidity in the solution. Optical ...
Low dimensional systems of semiconductor quantum dots in glass composites exhibit interesting physical properties arising from spatial confinement effects; an example is the discretization of the energy spectrum. In semiconductor quantum dots, electronic wave functions experience effects of quantum confinement arising from the dot-glass interface acting as an infinite potential barrier. This leads ...
Fibroblast activation protein-? (FAP) is a cell surface, serine protease of the post-prolyl peptidase family that is expressed in human breast cancer but not in normal tissues. Previously, we showed that FAP expression increased tumor growth rates in a mouse model of human breast cancer. Here the role of the proteolytic activities of FAP in promoting tumor growth, matrix degradation and invasion ...
Four different glass systems of the sodium boro-vanadate type containing halogen ions, were prepared by melting at 1000�C for three hours and annealed at 300�C. These glasses were investigated using dc conductivity, density, molar volume and magnetic susceptibility measurements. It was found that the activation energy shows a decrease as the halogen ions were increased, ...
The B2O3 was introduced into the Er3+ doped TeO2-ZnO-Na2O glass to increase the phonon energy of the host. The effect of B2O3 on the non-radiative rate of the 4I11/2-->4I13/2 transition of Er3+, the lifetime of the 4I11/2 and 4I13/2 levels, the green and red upconversion emissions intensity, and the 4I13/2-->4I15/2 emission intensity was discussed. The results show that the phonon energy of ...
Cytoplasmic male sterility (CMS) and nucleus-controlled fertility restoration are widespread plant reproductive features that provide useful tools to exploit heterosis in crops. However, the molecular mechanism underlying this kind of cytoplasmic�nuclear interaction remains unclear. Here, we show in rice (Oryza sativa) with Boro II cytoplasm that an abnormal mitochondrial ...
3beta-Hydroxysteroid dehydrogenase and steroid Delta5-->4-isomerase (3beta-HSD/isomerase) were purified as a single protein from human term placenta. The affinity alkylator, 5,10-secoestr-4-yne-3,10, 17-trione (secosteroid), was incubated with the purified enzyme (30/1 secosteroid/enzyme molar ratio) to produce an 80% loss of initial isomerase activity over 90 min in a time-dependent, ...
