Hydrothermal syntheses and characterization of two layered molybdenum selenites, Rb2(MoO3)3SeO3 and Tl2(MoO3)3SeO3

International Nuclear Information System (INIS)

Dussack, L.L.; Harrison, W.T.A.; Jacobson, A.J.

1996-01-01

The hydrothermal syntheses of Rb 2 (MoO 3 ) 3 SeO 3 , and Tl 2 (MoO 3 ) 3 SeO 3 are described. These compounds have structures built up from hexagonal-WO 3 -type sheets and are isostructural with the previously reported Cs 2 (MoO 3 ) 3 SeO 3 and (NH 4 ) 2 (MoO 3 ) 3 SeO 3 . Powder X-ray, thermogravimetric, and spectroscopic data are presented and discussed

EPR of SeO2- and SeO3- radicals in alkaline borate glasses with 77Se isotope

International Nuclear Information System (INIS)

Galimov, D.G.; Tarzimanov, K.D.

1977-01-01

Alkaline borate glasses with 77 Se were investigated in order to establish the nature of selenium compounds and radicals in glasses. The relationship between alkali ions and the oxygen radical of selenium was determined by decoding the hyperfine structure of the alkaline borate glass EPR spectra obtained before and after γ-irradiation. The irradiated and non-irradiated glasses were characterized by hyperfine splitting of the EPR lines from the α- and β centres. Moreover, the irradiated samples were noted to have a line doublet (signal phi). With intenser reduction conditions of glass fusion, the intensities of α, β, and phi signals were noted to decline. This confirmes the suggestion that these centres were caused by oxygen compouds. The authors concluded that α and β signals were due to the paramagnetic centres of SeO 2 - and [SeO 2 - ]R + , and phi signal to the SeO 3 - radicals

Solid solutions in the system Nd2(SeO4)3 - Sm2(SeO4)3 - H2O

International Nuclear Information System (INIS)

Serebrennikov, V.V.; Tsybukova, T.N.; Velikov, A.A.

1984-01-01

Using the method of isothermal solubility at 25 deg C the system Nd 2 (SeO 4 ) 3 -Sm 2 (SeO 4 ) 3 -H 2 O has been studied. Roentgenographic recording of solid ''residues'' is realized. For solid solutions energies of interchange and formation heats are calculated. Formation heats of solid solutions on the basis of samarium selenates are also found experimentally

Quiste óseo aneurismático mandibular

Directory of Open Access Journals (Sweden)

Denia Morales Navarro

Full Text Available El quiste óseo aneurismático es definido como una lesión osteolítica expansiva que consiste en espacios llenos de sangre y canales divididos por tabiques de tejido conectivo, los cuales contienen tejido osteoide y células gigantes multinucleadas. El objetivo es presentar un caso clínico poco común de un quiste óseo aneurismático de la región del cuerpo mandibular. Se trata de una paciente femenina de 39 años de edad que acudió a consulta externa del Servicio de Cirugía Maxilofacial del Hospital Universitario "General Calixto García" por aumento de volumen en región mandibular derecha y dolor intenso de 1 mes de evolución. Radiográficamente se detectó un área radiolúcida unilocular de bordes bien definidos; se realizó curetaje de la cavidad, y estudio histopatológico de la lesión que informó la presencia de un quiste óseo aneurismático. Se concluye que el quiste óseo aneurismático es más común en los huesos largos y en la región del ángulo mandibular en el esqueleto facial, por lo que la presentación de este en el cuerpo mandibular resulta de interés.

Potassium vanadium selenite, K(VO2)3(SeO3)2

International Nuclear Information System (INIS)

Harrison, W.T.A.; Dussack, L.L.; Jacobson, A.J.

1995-01-01

The hydrothermal synthesis and single-crystal structure of potassium vanadium(V) selenite, K(VO 2 ) 3 (SeO 3 ) 2 , are reported. K(VO 2 ) 3 (SeO 3 ) 2 is a layered phase based on a hexagonal tungsten-oxide-like array of corner-sharing VO 6 octahedra capped by Se atoms, and is isostructural with NH 4 (VO 2 ) 3 (SeO 3 ) 2 . (orig.)

CEOS SEO and GISS Meeting

Science.gov (United States)

Killough, Brian; Stover, Shelley

2008-01-01

The Committee on Earth Observation Satellites (CEOS) provides a brief to the Goddard Institute for Space Studies (GISS) regarding the CEOS Systems Engineering Office (SEO) and current work on climate requirements and analysis. A "system framework" is provided for the Global Earth Observation System of Systems (GEOSS). SEO climate-related tasks are outlined including the assessment of essential climate variable (ECV) parameters, use of the "systems framework" to determine relevant informational products and science models and the performance of assessments and gap analyses of measurements and missions for each ECV. Climate requirements, including instruments and missions, measurements, knowledge and models, and decision makers, are also outlined. These requirements would establish traceability from instruments to products and services allowing for benefit evaluation of instruments and measurements. Additionally, traceable climate requirements would provide a better understanding of global climate models.

Synthesis and crystal structure of hydrogen selenates K(HSeO4)(H2SeO4) and Cs(HSeO4)(H2SeO4)

International Nuclear Information System (INIS)

Troyanov, S.I.; Morozov, I.V.; Zakharov, M.A.; Kemnitz, E.

1999-01-01

Hydrogen selenates of the compositions K(HSeO 4 )(H 2 SeO 4 ) and Cs(HSeO 4 )(H 2 SeO 4 ) are synthesized by the reaction of alkali metal carbonates with an excess of the concentrated selenic acid. The X-ray diffraction study showed that both compounds are isostructural to the corresponding hydrogen sulfates. The difference in the systems of hydrogen bonding are caused by various combinations of the acceptor functions of the oxygen atoms in the HSeO 4 and H 2 SeO 4 groups

TOWARDS ACTIVE SEO (SEARCH ENGINE OPTIMIZATION 2.0

Directory of Open Access Journals (Sweden)

Charles-Victor Boutet

2012-12-01

Full Text Available In the age of writable web, new skills and new practices are appearing. In an environment that allows everyone to communicate information globally, internet referencing (or SEO is a strategic discipline that aims to generate visibility, internet traffic and a maximum exploitation of sites publications. Often misperceived as a fraud, SEO has evolved to be a facilitating tool for anyone who wishes to reference their website with search engines. In this article we show that it is possible to achieve the first rank in search results of keywords that are very competitive. We show methods that are quick, sustainable and legal; while applying the principles of active SEO 2.0. This article also clarifies some working functions of search engines, some advanced referencing techniques (that are completely ethical and legal and we lay the foundations for an in depth reflection on the qualities and advantages of these techniques.

Neutron diffraction study of high temperature phase of K2SeO4

International Nuclear Information System (INIS)

Iwata, Yutaka; Koyano, Nobumitsu; Shibuya, Iwao; Hidaka, Masanori; Okazaki, Atsushi.

1984-01-01

The crystal structure of high-temperature phase of K 2 SeO 4 has been determined by means of single crystal neutron diffraction. The space group is P6 3 /mmc of hexagonal system with two formula units per unit cell. The structure is characterized by an averaged dispositions of SeO 4 tetrahedra with one of its Se-O bonds pointing parallel and antiparallel to the hexagonal c-axis in addition to the split distribution of potassium atoms. Heavily distorted distribution of oxygen atoms in SeO 4 is observed in Fourier maps corrersponding to split positions and reorientational motion of tetrahedra. This disordered arrangement is found to have close relation with the room temperature orthorhombic structure. The hexagonal-orthorhombic phase transition of K 2 SeO 4 at 472 0 C is grouped to an order-disorder type. (author)

Three new d10 transition metal selenites containing PO4 tetrahedron: Cd7(HPO4)2(PO4)2(SeO3)2, Cd6(PO4)1.34(SeO3)4.66 and Zn3(HPO4)(SeO3)2(H2O)

Science.gov (United States)

Ma, Yun-Xiang; Gong, Ya-Ping; Hu, Chun-li; Mao, Jiang-Gao; Kong, Fang

2018-06-01

Three new d10 transition metal selenites containing PO4 tetrahedron, namely, Cd7(HPO4)2(PO4)2(SeO3)2 (1), Cd6(PO4)1.34(SeO3)4.66 (2) and Zn3(HPO4)(SeO3)2(H2O) (3), have been synthesized by hydrothermal reaction. They feature three different structural types. Compound 1 exhibits a novel 3D network composed of 3D cadmium selenite open framework with phosphate groups filled in the 1D helical tunnels. The structure of compound 2 displays a new 3D framework consisted of 2D cadmium oxide layers bridged by SeO3 and PO4 groups. Compound 3 is isostructural with the reported solids of Co3(SeO3)3-x(PO3OH)x(H2O) when x is equal to 1.0. Its structure could be viewed as a 3D zinc oxide open skeleton with SeO3 and HPO4 polyhedra attached on the wall of the tunnels. They represent the only examples in metal selenite phosphates in addition to the above cobalt compounds. Optical diffuse reflectance spectra revealed that these solids are insulators, which are consistent with the results of band structure computations based on DFT algorithm.

ERRATUM: TOWARDS ACTIVE SEO (SEARCH ENGINE OPTIMIZATION 2.0

Directory of Open Access Journals (Sweden)

Charles-Victor Boutet

2013-04-01

Full Text Available In the age of writable web, new skills and new practices are appearing. In an environment that allows everyone to communicate information globally, internet referencing (or SEO is a strategic discipline that aims to generate visibility, internet traffic and a maximum exploitation of sites publications. Often misperceived as a fraud, SEO has evolved to be a facilitating tool for anyone who wishes to reference their website with search engines. In this article we show that it is possible to achieve the first rank in search results of keywords that are very competitive. We show methods that are quick, sustainable and legal; while applying the principles of active SEO 2.0. This article also clarifies some working functions of search engines, some advanced referencing techniques (that are completely ethical and legal and we lay the foundations for an in depth reflection on the qualities and advantages of these techniques.

Sieve element occlusion (SEO) genes encode structural phloem proteins involved in wound sealing of the phloem.

Science.gov (United States)

Ernst, Antonia M; Jekat, Stephan B; Zielonka, Sascia; Müller, Boje; Neumann, Ulla; Rüping, Boris; Twyman, Richard M; Krzyzanek, Vladislav; Prüfer, Dirk; Noll, Gundula A

2012-07-10

The sieve element occlusion (SEO) gene family originally was delimited to genes encoding structural components of forisomes, which are specialized crystalloid phloem proteins found solely in the Fabaceae. More recently, SEO genes discovered in various non-Fabaceae plants were proposed to encode the common phloem proteins (P-proteins) that plug sieve plates after wounding. We carried out a comprehensive characterization of two tobacco (Nicotiana tabacum) SEO genes (NtSEO). Reporter genes controlled by the NtSEO promoters were expressed specifically in immature sieve elements, and GFP-SEO fusion proteins formed parietal agglomerates in intact sieve elements as well as sieve plate plugs after wounding. NtSEO proteins with and without fluorescent protein tags formed agglomerates similar in structure to native P-protein bodies when transiently coexpressed in Nicotiana benthamiana, and the analysis of these protein complexes by electron microscopy revealed ultrastructural features resembling those of native P-proteins. NtSEO-RNA interference lines were essentially devoid of P-protein structures and lost photoassimilates more rapidly after injury than control plants, thus confirming the role of P-proteins in sieve tube sealing. We therefore provide direct evidence that SEO genes in tobacco encode P-protein subunits that affect translocation. We also found that peptides recently identified in fascicular phloem P-protein plugs from squash (Cucurbita maxima) represent cucurbit members of the SEO family. Our results therefore suggest a common evolutionary origin for P-proteins found in the sieve elements of all dicotyledonous plants and demonstrate the exceptional status of extrafascicular P-proteins in cucurbits.

Õpetamistegevused ja õpilaste tekstimõistmine üleminekul esimesest kooliastmest teise astmesse / Krista Uibu, Mairi Männamaa

Index Scriptorium Estoniae

Uibu, Krista

2014-01-01

Eesti põhikoolide õpilaste ja õpetajate seas läbi viidud pikiuurimusest, mille eesmärk oli välja selgitada erinevused õpilaste tekstimõistmises ja verbaalsetes võimetes põhikooli esimeses ja teises kooliastmes ning nende seos klassiõpetajate õpetamistegevustega

Effect of grain size on the sorption and desorption of SeO42- and SeO32- in columns of crushed granite and fracture infill from granitic water under dynamic conditions

International Nuclear Information System (INIS)

Videnska, K.; Institute of Chemical Technology, Prague; Palagyi, S.; Czech Technical University, Prague; Stamberg, K.; Vodickova, H.; Havlova, V.

2013-01-01

The sorption of 2 x 10 -5 mol/dm 3 Na 2 SeO 4 and Na 2 SeO 3 dissolved in synthetic granitic water (SGW) were investigated in columns of crushed granite and fracture infill (clay minerals) of various grain sizes. Desorption was studied using pure SGW. The goal of study was the quantification of the effect of grain size on the retardation and distribution coefficients of SeO 4 2- and SeO 3 2- , as well as on the other transport parameters (Peclet number and hydrodynamic dispersion coefficient). A model based on the erfc-function, assuming a non-linear reversible equilibrium sorption/desorption isotherm, was used for evaluation of sorption/desorption and transport parameters. The determination of selenium was performed using an ICP-MS technique. The experimental breakthrough curves were fitted using non-linear regression procedure, in the course of which the parameters mentioned were sought. Summing up, no sorption was recorded in the case of SeO 4 2- under these conditions. The values of retardation coefficients were practically one for all studied grain sizes. On the other hand, significant sorption was found for SeO 3 2- : depending on the grain size, the retardation coefficients varied between 1.6-8.7 in pure granite and 1.8-37.2 in infill materials. These values correspond to distribution coefficients of 0.2-2.5 and 0.2-12.7 cm 3 /g, respectively. The both parameters have similar values in a case of desorption which reflects the reversible character of sorption process. It was found that retardation and distribution coefficients and sorption capacity for SeO 3 2- also increase with decreasing grain size. (author)

Injerto óseo en bloque usando como donante torus mandibular. Reporte de caso

Directory of Open Access Journals (Sweden)

Oswaldo Cantillo Pallares

2014-01-01

Full Text Available Actualmente los materiales empleados para regeneración a través de injertos óseos están basados en compuestos sintéticos con propiedades en ocasiones poco predecibles para los pacientes. Los torus son exostosis óseas de etiología desconocida y pueden ser utilizados como injertos óseos con resultados clínicos exitosos. Así, el objetivo de este reporte de caso es describir la técnica quirúrgica de injerto óseo en bloque utilizando como donante torus mandibulares. Los resultados clínicos a 8 semanas postoperatorias evidenciaron tejidos en cicatrización y pocas molestias referidas por el paciente. Los injertos óseos provenientes de torus mandibulares son técnicas quirúrgicas de mediana complejidad que pueden ser empleados y permiten la obtención de resultados clínicos similares a los de otros materiales.

Electrical properties of TiO2/SEO nanocomposites: From macro to nano

International Nuclear Information System (INIS)

Gutierrez, Junkal; Tercjak, Agnieszka; Martin, Loli; Mondragon, Inaki

2011-01-01

Graphical abstract: Display Omitted Highlights: → Three electro-devices were fabricated based on TiO 2 -SEO hybrid nanocomposites. → TUNA-current maps determine local conductivity variations at the nanoscale level. → Semiconductor analyzer allows to calculate conductivity values of investigated samples. → ITO/1:PEDOT-PSS/1:TiO 2 -SEO system show the highest conductivity value, 0.16 S/cm. - Abstract: Tunneling atomic force microscopy (TUNA) was successfully used to confirm that electro-devices based on TiO 2 -SEO nanocomposites can find possible application in solar power conversion field. Investigated electro-devices show different current flow depending on the layer combination. The highest capacity was shown by the electro-devices with a PEDOT-PSS layer on the top, being the average current values ∼200 pA at 10 V applied voltage. The conductivity value measured by Keithley indicated that the system ITO/1:PEDOT-PSS/1:TiO 2 -SEO electro-device shows the highest conductivity level, 0.16 S/cm. Thus, these systems have high potential to find application as solar cell devices.

Variable dimensionality and framework found in a series of quaternary zinc selenites, A2Zn3(SeO3)4·xH2O (A = Na, Rb, and Cs; 0≤x≤1) and Cs2Zn2(SeO3)3·2H2O

Science.gov (United States)

Lü, Minfeng; Jo, Hongil; Oh, Seung-Jin; Ok, Kang Min

2017-01-01

Five new alkali metal zinc selenites, A2Zn3(SeO3)4·xH2O (A = Na, Rb, and Cs; 0≤x≤1) and Cs2Zn2(SeO3)3·2H2O have been synthesized by heating a mixture of ZnO, SeO2 and A2CO3 (A = Na, Rb, and Cs), and characterized by X-ray diffraction (XRD) and spectroscopic analyses techniques. All of the reported materials revealed a rich structural chemistry with different frameworks and connection modes of Zn2+. While Rb2Zn3(SeO3)4 and Cs2Zn3(SeO3)4·H2O revealed three-dimensional frameworks consisting of isolated ZnO4 tetrahedra and SeO3 polyhedra, Na2Zn3(SeO3)4, Cs2Zn3(SeO3)4, and Cs2Zn2(SeO3)3·2H2O contained two-dimensional [Zn3(SeO3)4]2- layers. Specifically, whereas isolated ZnO4 tetrahedra and SeO3 polyhedra are arranged into two-dimensional [Zn3(SeO3)4]2- layers in two cesium compounds, circular [Zn3O10]14- chains and SeO3 linkers are formed in two-dimensional [Zn3(SeO3)4]2- layers in Na2Zn3(SeO3)4. Close structural examinations suggest that the size of alkali metal is significant in determining the framework geometry as well as connection modes of transition metal cations.

Viimsi poolsaare maastikuline mitmekeseisus ja selle muutumine 20. ja 21. sajandil = The diversity and changes of the landscape of the Viimsi Peninsula during the 20th and 21st Century : III koht bakalaureusetööde kategoorias / Karolin Mäe

Index Scriptorium Estoniae

Mäe, Karolin

2009-01-01

Töö eesmärgiks oli iseloomustada Viimsi poolsaare looduslikke ja inimmõjulisi komponente, selgitada välja poolsaare maastikuline mitmekesisus ning tuua välja maakattes esinevad muutused 20. sajandi algusest kuni tänapäevani ning nende seos sotsiaal-majanduslike tingimustega

Variable dimensionality and framework found in a series of quaternary zinc selenites, A2Zn3(SeO3)4·xH2O (A = Na, Rb, and Cs; 0≤x≤1) and Cs2Zn2(SeO3)3·2H2O

International Nuclear Information System (INIS)

Lü, Minfeng; Jo, Hongil; Oh, Seung-Jin; Ok, Kang Min

2017-01-01

Five new alkali metal zinc selenites, A 2 Zn 3 (SeO 3 ) 4 ·xH 2 O (A = Na, Rb, and Cs; 0≤x≤1) and Cs 2 Zn 2 (SeO 3 ) 3 ·2H 2 O have been synthesized by heating a mixture of ZnO, SeO 2 and A 2 CO 3 (A = Na, Rb, and Cs), and characterized by X-ray diffraction (XRD) and spectroscopic analyses techniques. All of the reported materials revealed a rich structural chemistry with different frameworks and connection modes of Zn 2+ . While Rb 2 Zn 3 (SeO 3 ) 4 and Cs 2 Zn 3 (SeO 3 ) 4 ·H 2 O revealed three-dimensional frameworks consisting of isolated ZnO 4 tetrahedra and SeO 3 polyhedra, Na 2 Zn 3 (SeO 3 ) 4 , Cs 2 Zn 3 (SeO 3 ) 4 , and Cs 2 Zn 2 (SeO 3 ) 3 ·2H 2 O contained two-dimensional [Zn 3 (SeO 3 ) 4 ] 2- layers. Specifically, whereas isolated ZnO 4 tetrahedra and SeO 3 polyhedra are arranged into two-dimensional [Zn 3 (SeO 3 ) 4 ] 2- layers in two cesium compounds, circular [Zn 3 O 10 ] 14- chains and SeO 3 linkers are formed in two-dimensional [Zn 3 (SeO 3 ) 4 ] 2- layers in Na 2 Zn 3 (SeO 3 ) 4 . Close structural examinations suggest that the size of alkali metal is significant in determining the framework geometry as well as connection modes of transition metal cations. - Graphical abstract: Variable dimensions and frameworks were found in a series of quaternary zinc selenites, A 2 Zn 3 (SeO 3 ) 4 (A = Na, Rb and Cs). - Highlights: • Five novel quaternary zinc selenites are synthesized. • All the selenites with different structures contain polarizable d 10 and lone pair cations. • The size of alkali metal cations is significant in determining the framework geometry.

Põhja-Ameerika looderanniku indiaanlaste kultuur : nahkrõivad ja nende valmistamine. Nahast puusapõlle ERM C 19:27ab konserveerimine / Tea Šumanov

Index Scriptorium Estoniae

Šumanov, Tea

2011-01-01

Antakse ülevaade Põhja-Ameerika indiaanlaste kultuurist ja suhestumisest loodusega, kirjeldatakse nende nahakäsitöö ja kaunistamise meetodeid. Etnograafiliste museaalide väärtusest, nende kahjustustest ning konserveerimiseks valitud meetoditest ning ERM-i eksponaadi konserveerimise praktilisest protsessist

High-pressure single-crystal X-ray diffraction of Tl2SeO4

International Nuclear Information System (INIS)

Grzechnik, Andrzej; Breczewski, Tomasz; Friese, Karen

2008-01-01

The effect of pressure on the crystal structure of thallium selenate (Tl 2 SeO 4 ) (Pmcn, Z=4), containing the Tl + cations with electron lone pairs, has been studied with single-crystal X-ray diffraction in a diamond anvil cell up to 3.64 GPa at room temperature. No phase transition has been observed. The compressibility data are fitted by a Murnaghan equation of state with the zero-pressure bulk modulus B 0 =29(1) GPa and the unit-cell volume at ambient pressure V 0 =529.6(8) A 3 (B'=4.00). Tl 2 SeO 4 is the least compressible in the c direction, while the pressure-induced changes of the a and b lattice parameters are quite similar. These observations can be explained by different pressure effects on the nine- and 11-fold coordination polyhedra around the two non-equivalent Tl atoms. The SeO 4 2- tetrahedra are not rigid units and become more distorted. Their contribution to the compressibility is small. The effect of pressure on the isotypical oxide materials A 2 TO 4 with the β-K 2 SO 4 structure is discussed. It appears that the presence of electron lone pairs on the Tl + cation does not seem to influence the compressibility of Tl 2 SeO 4 . - Graphical abstract: Pressure dependence of normalized lattice parameters and unit-cell volumes in Tl 2 SeO 4 (Pmcn, Z=4). The solid line is the Murnaghan equation of state

Biological compatibility test on films of added SEO [poly(dimethyl siloxane)-co-poly(ethylene oxide)] PVP

International Nuclear Information System (INIS)

Rogero, Sizue O.; Souza-Bazzi, Aurea de; Higa, Olga Z.

1999-01-01

Membranes composed by polyvinylpyrrolidone (PVP), agar and water crosslinked by ionizing radiation, can have the mechanical properties improved by the addition of copolymers. Due to the hydrophilic property also by the medical grade as it is supplied, the copolymer poly(dimethyl siloxane)-co-poly(ethylene oxide) (SEO) was added to the PVP membranes. Varied concentrations of SEO were used in the preparation of PVP membranes by electron beam irradiation at dose rate of 25 kGy. For testing the bicompatibility of the SEO composed membrane the in vitro assay of cytotoxicity, with Chinese Hamster Ovary cells (CHO), was carried out. However, the membranes showed a cytotoxic characteristic in cell culture, which was stronger as the amount of SEO increased in the composition. (author)

Nd(BrO3)3-Yb(BrO3)3-H2O and Nd2(SeO4)3-Yb2(SeO4)3-H2O systems at 25 deg C

International Nuclear Information System (INIS)

Serebrennikov, V.V.; Batyreva, V.A.; Tsybukova, T.N.

1981-01-01

Using the methods of isothermal solubility the Nd(BrO 3 ) 3 - Yb(BrO 3 ) 3 -H 2 O and Nd 2 (SeO 4 ) 3 -Yb 2 (SeO 4 ) 3 -H 2 O systems are studied at 25 deg C. The compositions of the solid phases are determined by the method of ''residues''. The formation of two series of solid solutions in both systems is established. Besides, there is a crystallization region of Nd 2 (SeO 4 ) 3 in the system of selenates. The solubility diagrams of the systems are presented [ru

The N-end rule pathway catalyzes a major fraction of the protein degradation in skeletal muscle

Science.gov (United States)

Solomon, V.; Lecker, S. H.; Goldberg, A. L.

1998-01-01

In skeletal muscle, overall protein degradation involves the ubiquitin-proteasome system. One property of a protein that leads to rapid ubiquitin-dependent degradation is the presence of a basic, acidic, or bulky hydrophobic residue at its N terminus. However, in normal cells, substrates for this N-end rule pathway, which involves ubiquitin carrier protein (E2) E214k and ubiquitin-protein ligase (E3) E3alpha, have remained unclear. Surprisingly, in soluble extracts of rabbit muscle, we found that competitive inhibitors of E3alpha markedly inhibited the 125I-ubiquitin conjugation and ATP-dependent degradation of endogenous proteins. These inhibitors appear to selectively inhibit E3alpha, since they blocked degradation of 125I-lysozyme, a model N-end rule substrate, but did not affect the degradation of proteins whose ubiquitination involved other E3s. The addition of several E2s or E3alpha to the muscle extracts stimulated overall proteolysis and ubiquitination, but only the stimulation by E3alpha or E214k was sensitive to these inhibitors. A similar general inhibition of ubiquitin conjugation to endogenous proteins was observed with a dominant negative inhibitor of E214k. Certain substrates of the N-end rule pathway are degraded after their tRNA-dependent arginylation. We found that adding RNase A to muscle extracts reduced the ATP-dependent proteolysis of endogenous proteins, and supplying tRNA partially restored this process. Finally, although in muscle extracts the N-end rule pathway catalyzes most ubiquitin conjugation, it makes only a minor contribution to overall protein ubiquitination in HeLa cell extracts.

Estandarización de modelo experimental porcino para defectos óseos maxilares

Directory of Open Access Journals (Sweden)

A.F. Aguilera-Salgado

2014-12-01

Full Text Available Para evaluar la eficacia y seguridad de cualquier sustituto óseo es necesario probarlo en modelos experimentales antes de iniciar estudios clínicos. En la literatura encontramos distintos modelos experimentales que no han tenido una estandarización adecuada para su evaluación. Nuestro proyecto forma parte de una línea de investigación cuya finalidad es desarrollar un implante óseo mediante técnicas de ingeniería de tejidos. Presentamos la primera etapa del mismo que consiste en estandarizar un modelo experimental en crecimiento. Incluimos 16 cerdos criollos sanos, destetados, de entre 3 y 6 semanas de vida, con peso mayor de 5 kg y de ambos sexos: 10 hembras y 6 machos. Realizamos 56 defectos óseos midiendo en cada uno alto, ancho y espesor con compás quirúrgico. Tras la cirugía, realizamos TAC de cráneo con reconstrucción tridimensional midiendo los mismos valores. Para evaluar el grado de regeneración lograda y los volúmenes residuales, realizamos a las 8 semanas nueva TAC de cráneo midiendo los mismos parámetros. Finalmente, analizamos clínicamente los defectos en cada cerdo tras someterlos a eutanasia y tomamos muestras del tejido regenerado para análisis morfológico, histológico, bioquímico y molecular. Para evaluar la reproducibilidad de la técnica, utilizamos el coeficiente de correlación intraclase, y para la correlación entre las evaluaciones clínicas y tomográficas, el coeficiente de correlación de Pearson. Estudiamos 56 defectos óseos, el menor de 5 x 5 x 5 mm y el mayor de 25 x 15 x 7 mm, encontrando alta reproducibilidad en la medición clínica y tomográfica del tamaño de los defectos óseos, con altos coeficientes de correlación intraclase. Tras 8 semanas encontramos un alto porcentaje de regeneración ósea en todos los defectos. Realizamos la caracterización del tejido regenerado mediante microscopía electrónica, tinción de hematoxilina/eosina y de Von Kossa, análisis de componentes org

Uimastite mõju Eesti koolinoorte isiksuse arengule ning nende kuritegelikule käitumisele : [bakalaureusetöö] / Vaike Kargu ; Tartu Ülikool, õigusteaduskond ; juhendaja: Silvia Kaugia

Index Scriptorium Estoniae

Kargu, Vaike

2010-01-01

Legaalsetest uimastitest ja nende esmatarbimise east Eestis, Eesti koolinoorte seas enamkasutatavatest illegaalsetest uimastitest ning nende mõjust koolinoorte käitumisele, sotsiaalõiguslikest tagajärgedest, alaealiste kuritegevusest, ennetustegevusest

Cs2SeO4-UO2SeO4-H2O system at 25 deg C

International Nuclear Information System (INIS)

Serezhkina, L.B.; Serezhkin, V.N.

1987-01-01

Using the method of isothermal solubility at 25 deg C the interaction of cesium and uranyl selenates in aqueous solution is studied. Formation of congruently soluble Cs 2 UO 2 (SeO 4 ) 2 x2H 2 O and Cs 2 (UO 2 ) 2 x(SeO 4 ) 3 is ascertained, their crystallographic characteristics being determined

ENERAPAN E-COMMERCE BERBASIS CMS DAN SEO UNTUK TOKO ON-LINE UMKM

Directory of Open Access Journals (Sweden)

Felix Andreas Sutanto

2015-12-01

Full Text Available Abstrak. IbM ini bertujuan membuat pruduk software framework aplikasi e-commerce untuk toko on-line UMKM khususnya handicraft, kuliner, batik dan pakaian dengan berbasis sistem manajemen isi (Content Management System/CMS dan optimisasi mesin pencari (Search Engine Optimization/SEO. Produk tersebut nantinya dipergunakan oleh mitra yang merupakan calon wirausaha baru di bidang teknologi informasi (TI. Untuk dapat menerapkan produk tersebut pada usahanya, dan mampu membuat sendiri, mengoperasikan, mengembangkan, dan memelihara maka perlu dilakukan pelatihan dan pendampingan tentang framework aplikasi, manajemen usaha, dan kewirausahaan. Metode yang digunakan dalam IbM ini adalah kaji tindak partisipatif. Pelaksanannya yaitu dengan melakukan identifikasi dan analisis situasi tentang permasalahan yang dihadapi mitra, selanjutnya memberikan solusi berupa pelatihan, pendampingan, dan pembuatan teknologi Software framework E-commerce berbasis CMS dan SEO yang melibatkan mitra serta dilakukan monitoring dan evaluasi agar mitra menjadi terarah, terampil dan profesioanal di bidang tersebut. Target IbM ini adalah terbentuknya wirausaha baru bidang TI khususnya E-commerce bagi UMKM yang terlatih, terapil, dan profesional dalam menjalankan usahanya. Sehinga Luaran dari IbM ini adalah berupa Produk Software Framework E-commerce bagi UMKM berbasis CMS dan SEO, jasa pelatihan Desain web E-commerce, jasa pelatihan manajemen usaha, dan jasa pelatihan kewirausahaan.Kata Kunci : Framework, E-commerce, CMS, SEO, wirausaha, UMKM

Estandarización de modelo experimental porcino para defectos óseos maxilares

OpenAIRE

A.F. Aguilera-Salgado; M.R. Pérez-Dosal

2014-01-01

Para evaluar la eficacia y seguridad de cualquier sustituto óseo es necesario probarlo en modelos experimentales antes de iniciar estudios clínicos. En la literatura encontramos distintos modelos experimentales que no han tenido una estandarización adecuada para su evaluación. Nuestro proyecto forma parte de una línea de investigación cuya finalidad es desarrollar un implante óseo mediante técnicas de ingeniería de tejidos. Presentamos la primera etapa del mismo que consiste en estandarizar u...

Multiple cis-regulatory elements are involved in the complex regulation of the sieve element-specific MtSEO-F1 promoter from Medicago truncatula.

Science.gov (United States)

Bucsenez, M; Rüping, B; Behrens, S; Twyman, R M; Noll, G A; Prüfer, D

2012-09-01

The sieve element occlusion (SEO) gene family includes several members that are expressed specifically in immature sieve elements (SEs) in the developing phloem of dicotyledonous plants. To determine how this restricted expression profile is achieved, we analysed the SE-specific Medicago truncatula SEO-F1 promoter (PMtSEO-F1) by constructing deletion, substitution and hybrid constructs and testing them in transgenic tobacco plants using green fluorescent protein as a reporter. This revealed four promoter regions, each containing cis-regulatory elements that activate transcription in SEs. One of these segments also contained sufficient information to suppress PMtSEO-F1 transcription in the phloem companion cells (CCs). Subsequent in silico analysis revealed several candidate cis-regulatory elements that PMtSEO-F1 shares with other SEO promoters. These putative sieve element boxes (PSE boxes) are promising candidates for cis-regulatory elements controlling the SE-specific expression of PMtSEO-F1. © 2012 German Botanical Society and The Royal Botanical Society of the Netherlands.

Flux synthesis, modulated crystal structures, and physical properties of REMn0.5SeO (RE = La, Ce)

International Nuclear Information System (INIS)

Peschke, Simon; Johrendt, Dirk; Nitsche, Fabian

2015-01-01

The selenide oxides REMn 0.5 SeO (RE = La, Ce) were synthesized by heating RE 2 O 3 , RE, Mn, and Se in a NaI/KI flux at 800 C, and their modulated crystal structures determined by X-ray single crystal and powder diffraction {P 1 1 2/n(αβ1/2)0s, Z = 2, LaMn 0.5 SeO: a = 405.7(1), b = 405.7(1), c = 915.2(1) pm, γ = 90 , q = [1/10, -1/10, 1/2]; CeMn 0.5 SeO: a = 402.0(1), b = 401.8(1), c = 910.7(1) pm, γ = 90.000(4) , q = [0.0789(2), -0.0783(2), 1/2]}. The structures are related to the ZrCuSiAs-type structure with ordered vacancies at the manganese sites. The resulting modulations of the checkerboard pattern in the [Mn 0.5 Se] layers can be approximated by 10a x 10b x 2c and 51a x 51b x 2c supercells in LaMn 0.5 SeO and CeMn 0.5 SeO, respectively. Both compounds are insulators. The optical bandgap of LaMn 0.5 SeO was determined to 2.13 eV from the Kubelka-Munk function. Magnetic measurements indicate antiferromagnetic ordering of the Mn 2+ moments with Neel points well above room temperature, as known from related manganese compounds. (Copyright copyright 2015 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

The synthesis and crystal structures of the first rare-earth alkaline-earth selenite chlorides MNd10(SeO3)12Cl8 (M=Ca and Sr)

International Nuclear Information System (INIS)

Berdonosov, P.S.; Olenev, A.V.; Dolgikh, V.A.; Lightfoot, P.

2007-01-01

Two new alkaline-earth Nd selenite chlorides MNd 10 (SeO 3 ) 12 Cl 8 (M=Ca, Sr) were obtained using crystal growth from alkaline-earth chloride melts in quartz tubes. These new compounds crystallize in the orthorhombic system in space group C cca (no. 68). The compounds were studied by energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction. It was shown that both compounds adopt the same structure type, constructed by complex [M 11 (SeO 3 ) 12 ] 8+ slabs separated by chloride anion layers perpendicular to the longest cell parameter. The SeO 3 groups show a pyramidal shape and may be described as SeO 3 E tetrahedra. Such SeO 3 groups decorate the Nd-O skeletons forming the [M 11 (SeO 3 ) 12 ] 8+ slabs. - Graphical abstract: Two new alkaline-earth Nd selenite chlorides MNd 10 (SeO 3 ) 12 Cl 8 (M=Ca, Sr) were synthesized. These structures are constructed by [M 11 (SeO 3 ) 12 ] 8+ slabs separated by chloride anion layers

Two anionically derivatized scandium oxoselenates(IV): ScF[SeO3] and Sc2O2[SeO3

Science.gov (United States)

Greiner, Stefan; Chou, Sheng-Chun; Schleid, Thomas

2017-02-01

Scandium fluoride oxoselenate(IV) ScF[SeO3] and scandium oxide oxoselenate(IV) Sc2O2[SeO3] could be synthesized through solid-state reactions. ScF[SeO3] was obtained phase-pure, by reacting mixtures of Sc2O3, ScF3 and SeO2 (molar ratio: 1:1:3) together with CsBr as fluxing agent in corundum crucibles embedded into evacuated glassy silica ampoules after firing at 700 °C for seven days. Sc2O2[SeO3] first emerged as by-product during the attempts to synthesize ScCl[SeO3] following aforementioned synthesis route and could later be reproduced from appropriate Sc2O3/SeO3 mixtures. ScF[SeO3] crystallizes monoclinically in space group P21/m with a=406.43(2), b =661.09(4), c=632.35(4) pm, β=93.298(3)° and Z=2. Sc2O2[SeO3] also crystallizes in the monoclinic system, but in space group P21/n with a=786.02(6), b=527.98(4), c=1086.11(8) pm, β=108.672(3)° for Z=4. The crystal structures of both compounds are strongly influenced by the stereochemically active lone pairs of the ψ1-tetrahedral [SeO3]2- anions. They also show partial structures, where the derivatizing F- or O2- anions play an important role. For ScF[SeO3] chains of the composition 2+∞ 1[FS c 2 / 2 ] form from connected [FSc2]5+ dumbbells, while [OSc3]7+ pyramids and [OSc4]10+ tetrahedra units are condensed to layers according to 2+ ∞ 2[O2Sc2 ] in Sc2O2[SeO3].

Mitmetasandiline hinnang: vaade 360 kraadi / Kaspar Saul

Index Scriptorium Estoniae

Saul, Kaspar

2008-01-01

Ülevaade Kaspar Sauli 2008. aastal Tallinna Ülikoolis kaitstud magistritööst "Ajateenijatele antud hinnangute ja militaarsoorituse seos Eesti kaitseväes jalaväe väljaõppekeskuse Pärnu üksik-jalaväepataljon näitel", milles analüüsitakse ajateenijatele antud hinnangute seoseid nende militaarsooritusega ning hinnanguankeedi kui mõõdiku usaldusväärsust. Tabel

Synthesis and crystal structure of new uranyl selenite(IV)-selenate(VI) [C5H14N][(UO2)3(SeO4)4(HSeO3)(H2O)](H2SeO3)(HSeO4)

International Nuclear Information System (INIS)

Krivovichev, S.V.; Tananaev, I.G.; Myasoedov, B.F.; Kalenberg, V.

2006-01-01

Crystals of new uranyl selenite(IV)-selenate(VI) [C 5 H 14 N][(UO 2 ) 3 (SeO 4 ) 4 (HSeO 3 )(H 2 O)](H 2 SeO 3 )(HSeO 4 ) are obtained by the method of evaporation from aqueous solutions. Compound has triclinic lattice, space group P1-bar, a=11.7068(9), b=14.8165(12), c=16.9766(15), α=73.899(6), β=76.221(7), γ=89.361(6) Deg, V=2743.0(4) A 3 , Z=2. Laminated complexes (UO 2 ) 3 (SeO 4 ) 4 (HSeO 3 )(H 2 O)] 3- are the basis of the structure. [HSe(VI)O 4 ] - , [H 2 Se(IV)O 3 ] complexes and protonated methylbutylamine cations are disposed between layers [ru

La hidroxiapatita en defectos óseos periodontales

Directory of Open Access Journals (Sweden)

Omelio Fontaine Machado

2015-06-01

Full Text Available La periodontitis es una enfermedad destructiva de los tejidos periodontales profundos, caracterizada por pérdida ósea progresiva; constituye la segunda causa de pérdida dentaria. Una opción terapéutica son los injertos de hidroxiapatita (HA, de naturaleza altamente biocompatible y osteoconductora. Se presentan dos casos de pacientes remitidos desde la atención primaria de salud, con movilidad dentaria grados II y III, recesión periodontal y compromiso óseo importante, bolsas periodontales reales, con factores de riesgo directos como: placa dental bacteriana, retención de alimentos, sangramiento e inflamación gingival, halitosis, pérdida de la morfología. Previa indicación de terapia medicamentosa y estudio hematológico, se procedió a la realización de un colgajo periodontal y colocación del biomaterial granulado, hidroxiapatita, en los defectos óseos. Se logró reducción del grado de movilidad dentaria, mejoría en el nivel de retracción gingival, disminución en la profundidad de las bolsas, desaparición de síntomas. No se observó respuesta adversa al tratamiento. Al examen radiográfico periapical se detectó grado de neoformación ósea, fueron evolucionados en consulta por un periodo de tres meses.

Complexing in the system Rb2SeO4-UO2SeO4-H2O

International Nuclear Information System (INIS)

Kuchumova, N.V.; Shtokova, I.P.; Serezhkina, L.B.; Serezhkin, V.N.

1989-01-01

Method of isothermal solubility at 25 deg C is used to study interaction of rubidium and uranyl selenates in aqueous solution. Formation of congruently soluble Rb 2 UO 2 (SeO 4 ) 2 x2H 2 O and Rb 2 (UO 2 ) 2 x(SeO 4 ) 3 x6H 2 O is stated. For the last compound crystallographic characteristics (a=10.668; b=14.935(9); c=13.891(7) A; β=104.94(1); Z=4, sp.gr. P2 1 /c) are determined. Thermal decomposition of a compound results in formation of Rb 2 U 2 O 7

Quiste óseo simple atípico: Presentación de un caso clínico Atypical Simple Bone Cyst: A Case Report

Directory of Open Access Journals (Sweden)

L.R González

2009-02-01

Full Text Available El quiste óseo simple (sinonimia quiste óseo traumático, quiste óseo solitario, quiste óseo hemorrágico es un pseudoquiste intraóseo desprovisto de recubrimiento epitelial con un contenido seroso y/o hemático que en ocasiones puede estar ausente. Es una patología poco frecuente que afecta a los huesos maxilares con predilección por el maxilar inferior. El objetivo del presente trabajo es presentar un caso de quiste óseo simple en maxilar inferior que difiere de los habitualmente encontrados en los huesos maxilares en cuanto a su presentación clínica, radiográfica e histopatológica.The simple bone cyst (reported in the literature as traumatic bone cyst, solitary bone cyst, hemorrhagic bone cyst is an intraosseous pseudocyst devoid of epithelial lining and filled with serous and/or hematic fluid that may also be lacking. Is a an uncommon condition that usually affects the jaws, with predilection for the lower jaw. The aim of the present work was to report a case of traumatic bone cyst of the jaw that differs from other maxillary bone cysts in its clinical, radiologic, and histologic presentation.

Syntheses, structures, and characterizations of a new second-order nonlinear optical material: Pb2(SeO3)(NO3)2

International Nuclear Information System (INIS)

Meng, Chang-Yu; Geng, Lei; Chen, Wen-Ting; Wei, Ming-Fang; Dai, Kai; Lu, Hong-Yan; Cheng, Wen-Dan

2015-01-01

Highlights: • The new polar compound Pb 2 (SeO 3 )(NO 3 ) 2 was synthesized by the conventional hydrothermal method. • The compound was characterized structurally and optically, showing SHG efficiency about 2 times that of KDP. • The electronic band structures and density of states are investigated theoretically. - Abstract: A new polar compound Pb 2 (SeO 3 )(NO 3 ) 2 was synthesized by the conventional facile hydrothermal method at middle temperature 200 °C and characterized by X-ray single crystal diffraction, powder diffraction, UV–vis−NIR optical absorption spectrum and infrared spectrum. It crystallizes in the orthorhombic system, space group Pmn2 1 with a = 5.4669(3) Å, b = 10.3277(6) Å, c = 7.2610(4) Å, V = 409.96(4) Å 3 . The compound features a 2D [Pb 2 (SeO 3 )] 2 ∞ architectures composed of SeO 3 and PbO 2 /PbO 3 units. Two unequivalent N(1)O 3 and N(2)O 3 units is inserted between adjacent [Pb 2 (SeO 3 )] 2 ∞ layers to stabilize the whole crystal structure. Second-harmonic generation (SHG) efficiency has been evaluated for powder Pb 2 (SeO 3 )(NO 3 ) 2 samples, showing about 2 times that of KDP reference. Moreover, the compound can achieve I-type phase-matching according to measurements by the Kurtz–Perry method. Theoretical investigations based on the first-principle DFT method were also performed to gain further insights into the crystal structure and optical properties relationship. The calculated band gap value of 3.38 eV is consistent with the optical reflectance measurements value of 3.76 eV

Ectopic expression of phloem motor protein pea forisome PsSEO-F1 enhances salinity stress tolerance in tobacco.

Science.gov (United States)

Srivastava, Vineet Kumar; Raikwar, Shailendra; Tuteja, Renu; Tuteja, Narendra

2016-05-01

PsSEOF-1 binds to calcium and its expression is upregulated by salinity treatment. PsSEOF - 1 -overexpressing transgenic tobacco showed enhanced salinity stress tolerance by maintaining cellular ion homeostasis and modulating ROS-scavenging pathway. Calcium (Ca(2+)) plays important role in growth, development and stress tolerance in plants. Cellular Ca(2+) homeostasis is achieved by the collective action of channels, pumps, antiporters and by Ca(2+) chelators present in the cell like calcium-binding proteins. Forisomes are ATP-independent mechanically active motor proteins known to function in wound sealing of injured sieve elements of phloem tissue. The Ca(2+)-binding activity of forisome and its role in abiotic stress signaling were largely unknown. Here we report the Ca(2+)-binding activity of pea forisome (PsSEO-F1) and its novel function in promoting salinity tolerance in transgenic tobacco. Native PsSEO-F1 promoter positively responded in salinity stress as confirmed using GUS reporter. Overexpression of PsSEO-F1 tobacco plants confers salinity tolerance by alleviating ionic toxicity and increased ROS scavenging activity which probably results in reduced membrane damage and improved yield under salinity stress. Evaluation of several physiological indices shows an increase in relative water content, electrolyte leakage, proline accumulation and chlorophyll content in transgenic lines as compared with null-segregant control. Expression of several genes involved in cellular homeostasis is perturbed by PsSEO-F1 overexpression. These findings suggest that PsSEO-F1 provides salinity tolerance through cellular Ca(2+) homeostasis which in turn modulates ROS machinery providing indirect link between Ca(2+) and ROS signaling under salinity-induced perturbation. PsSEO-F1 most likely functions in salinity stress tolerance by improving antioxidant machinery and mitigating ion toxicity in transgenic lines. This finding should make an important contribution in our better

Pasado, presente y futuro cercano de los materiales para uso en implantes óseos biodegradables

OpenAIRE

Plazas Bonilla, Clara Eugenia; Perilla, Jairo Ernesto

2011-01-01

El manejo de fracturas y defectos óseos procura la regeneración del tejido óseo respetando su anatomía y buscando recuperar su funcionalidad. El logro de este objetivo se inició en el siglo XVII con el uso de injertos de origen animal o humano, y ha llegado en la actualidad al uso de implantes, dispositivos elaborados en materiales naturales o sintéticos que comportan una gran variedad de propiedades químicas, físicas y biológicas. Las investigaciones en el área continúan encaminándose a la s...

Estudio del material óseo humano de los yacimientos de Larrarte y Trikuaizti I (Gipuzkoa.

Directory of Open Access Journals (Sweden)

Itxaso Merino

1991-01-01

Full Text Available Se describen los restos óseos humanos procedentes del dolmen de Larrarte y tres piezas dentarias procedentes del túmulo de Trikuaizti I, ambos de Beasain (Gipuzkoa. En Larrarte se hallaron numerosos restos óseos humanos, muy fragmentados y en muy malas condiciones de conservación, hecho que ha imposibilitado su diagnóstico sexual. El estudio demográfico ha permitido deducir la existencia de un número mínimo de 12 individuos de los que dos son infantiles: uno de 4-5 años y otro de 12-15 años.

Rates of ubiquitin conjugation increase when muscles atrophy, largely through activation of the N-end rule pathway

Science.gov (United States)

Solomon, V.; Baracos, V.; Sarraf, P.; Goldberg, A. L.

1998-01-01

The rapid loss of muscle mass that accompanies many disease states, such as cancer or sepsis, is primarily a result of increased protein breakdown in muscle, and several observations have suggested an activation of the ubiquitin-proteasome system. Accordingly, in extracts of atrophying muscles from tumor-bearing or septic rats, rates of 125I-ubiquitin conjugation to endogenous proteins were found to be higher than in control extracts. On the other hand, in extracts of muscles from hypothyroid rats, where overall proteolysis is reduced below normal, the conjugation of 125I-ubiquitin to soluble proteins decreased by 50%, and treatment with triiodothyronine (T3) restored ubiquitination to control levels. Surprisingly, the N-end rule pathway, which selectively degrades proteins with basic or large hydrophobic N-terminal residues, was found to be responsible for most of these changes in ubiquitin conjugation. Competitive inhibitors of this pathway that specifically block the ubiquitin ligase, E3alpha, suppressed most of the increased ubiquitin conjugation in the muscle extracts from tumor-bearing and septic rats. These inhibitors also suppressed ubiquitination in normal extracts toward levels in hypothyroid extracts, which showed little E3alpha-dependent ubiquitination. Thus, the inhibitors eliminated most of the differences in ubiquitination under these different pathological conditions. Moreover, 125I-lysozyme, a model N-end rule substrate, was ubiquitinated more rapidly in extracts from tumor-bearing and septic rats, and more slowly in those from hypothyroid rats, than in controls. Thus, the rate of ubiquitin conjugation increases in atrophying muscles, and these hormone- and cytokine-dependent responses are in large part due to activation of the N-end rule pathway.

The MgSeO4-UO2SeO4-H2O system at 25 deg C

International Nuclear Information System (INIS)

Serezhkina, L.B.; Serezhkin, V.N.

1984-01-01

The method of isothermal solubility at 25 deg C has been used to study MgSeO 4 -UO 2 SeO 4 -H 2 O system. Formation of the new compound Mg 2 (UO 2 ) 3 (SeO 4 ) 5 X32H 2 O, congruently soluble in water is stated. Thermographic and X-ray diffraction investigations of the prepared magnesium selenato-uranylate and products of its dehydration are conducted

Fecal Calprotectin is an Accurate Tool and Correlated to Seo Index in Prediction of Relapse in Iranian Patients With Ulcerative Colitis.

Science.gov (United States)

Hosseini, Seyed Vahid; Jafari, Peyman; Taghavi, Seyed Alireza; Safarpour, Ali Reza; Rezaianzadeh, Abbas; Moini, Maryam; Mehrabi, Manoosh

2015-02-01

The natural clinical course of Ulcerative Colitis (UC) is characterized by episodes of relapse and remission. Fecal Calprotectin (FC) is a relatively new marker of intestinal inflammation and is an available, non-expensive tool for predicting relapse of quiescent UC. The Seo colitis activity index is a clinical index for assessment of the severity of UC. The present study aimed to evaluate the accuracy of FC and the Seo colitis activity index and their correlation in prediction of UC exacerbation. In this prospective cohort study, 157 patients with clinical and endoscopic diagnosis of UC selected randomly from 1273 registered patients in Fars province's IBD registry center in Shiraz, Iran, were followed from October 2012 to October 2013 for 12 months or shorter, if they had a relapse. Two patients left the study before completion and one patient had relapse because of discontinuation of drugs. The participants' clinical and serum factors were evaluated every three months. Furthermore, stool samples were collected at the beginning of study and every three months and FC concentration (commercially available enzyme linked immunoassay) and the Seo Index were assessed. Then univariate analysis, multiple variable logistic regression, Receiver Operating Characteristics (ROC) curve analysis, and Pearson's correlation test (r) were used for statistical analysis of data. According to the results, 74 patients (48.1%) relapsed during the follow-up (33 men and 41 women). Mean ± SD of FC was 862.82 ± 655.97 μg/g and 163.19 ± 215.85 μg/g in relapsing and non-relapsing patients, respectively (P Seo index were significant predictors of relapse. ROC curve analysis of FC level and Seo activity index for prediction of relapse demonstrated area under the curve of 0.882 (P Seo index was significant in prediction of relapse (r = 0.63, P Seo activity index in prediction of relapse in the course of quiescent UC in Iranian patients.

Structure, spectra and thermal, mechanical, Faraday rotation properties of novel diamagnetic SeO2-PbO-Bi2O3-B2O3 glasses

Science.gov (United States)

Chen, Qiuling; Su, Kai; Li, Yantao; Zhao, Zhiwei

2018-06-01

Faraday rotation diamagnetic glass has attracted research attentions in photonics, sensing and magneto optical devices due to their high refractive index, wide transmittance in UV and Fourier transform infrared (FT-IR) range and temperature independent Faraday rotation. Selenite modified heavy metal oxides glasses with composition of xSeO2-(10-x) B2O3-45PbO-45Bi2O3 (x = 0, 1, 5 and 10mol%) and 15%SeO2-40%PbO-45%Bi2O3 have been fabricated by melt-quenching method in present study. The influence of SeO2 on glass forming ability, thermal, mechanical properties and Faraday rotation were evaluated through X-ray Diffraction (XRD), Fourier transforms infrared spectra (FT-IR), Raman, X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC), Vicker's hardness and Verdet constant measurements. XRD spectra reveal that the good vitrification was achieved for glass with SeO2 amounts ≤10% even without B2O3. FT-IR, Raman and XPS spectra ascertain the existence of characteristic vibration of SeO4, SeO3, PbO4, BiO3 and BO3 units. The incorporation of SeO2 increases the connectivity of glassy network by increasing the Tg, thermal stability and mechanical hardness. The small band gap, high polarizable Se4+ ions and isolated SeO3 units contribute to Faraday rotation improvement.

31 CFR 30.3 - Q-3: How are the SEOs and most highly compensated employees identified for purposes of compliance...

Science.gov (United States)

2010-07-01

... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Q-3: How are the SEOs and most highly... GOVERNANCE § 30.3 Q-3: How are the SEOs and most highly compensated employees identified for purposes of... applicable to the most highly compensated employees, the determination of whether an employee is a most...

Desarrollo óseo y actividad física: papel mediador de la masa magra, masa grasa y condición física

OpenAIRE

Torres Costoso, Ana Isabel

2016-01-01

La osteoporosis es el trastorno clínico que más comúnmente afecta al metabolismo óseo. Se caracteriza por unos niveles bajos de baja masa ósea y un deterioro de la arquitectura del tejido óseo que traen como consecuencia un incremento de la fragilidad ósea y un incremento del riesgo de fracturas. Aunque la osteoporosis se asocia a la edad avanzada, un desarrollo óseo apropiado desde edades tempranas ayuda a prevenir esta patología. De hecho, incrementos en la consistencia ósea durante la infa...

Variable dimensionality and new uranium oxide topologies in the alkaline-earth metal uranyl selenites AE[UO2)(SeO3)2] (AE=Ca, Ba) and Sr[UO2)(SeO3)2] · 2H2O

International Nuclear Information System (INIS)

Almond, Philip M.; Peper, Shane M.; Bakker, Eric; Albrecht-Schmitt, Thomas E.

2002-01-01

Three new alkaline-earth metal uranyl selenites, Ca[UO 2 )(SeO 3 ) 2 ] (1), Sr[UO 2 )(SeO 3 ) 2 ] · 2H 2 O (2), and Ba[UO 2 )(SeO 3 ) 2 ] (3), have been prepared from the reactions of CaCO 3 and Ca(OH) 2 , SrCl 2 and Sr(OH) 2 , or BaCl 2 and Ba(OH) 2 with UO 3 and SeO 2 under mild hydrothermal conditions. Single-crystal X-ray diffraction experiments reveal that the structures of 1-3 differ in both connectivity and dimensionality even though all contain the same fundamental building unit, namely [UO 2 (SeO 3 ) 4 ]. This polyhedron consists of a linear uranyl unit that is bound by one chelating and three bridging selenite anions creating a pentagonal bipyramidal environment around the U(VI) center. The crystal structure of 1 contains one-dimensional ribbons where the edges are terminated by monodentate selenite anions. The interior of the ribbons are constructed from edge-sharing pentagonal bipyramidal UO 7 units. The structure of 2 is also one-dimensional; however, here there are chains of edge-sharing pentagonal bipyramidal UO 7 dimers that are connected by bridging selenite anions. Ba[(UO 2 )(SeO 3 ) 2 ] (3) is two-dimensional, and the highly ruffled anionic sheets present in this structure are formed from both bridging and chelating/bridging selenite anions bound to uranyl moieties. The anionic substructures in 1-3 are separated by Ca 2+ , Sr 2+ , or Ba 2+ cations. Crystallographic data (193 K, MoKα, λ=0.71073): 1, triclinic, space group P1-bar, a=5.5502(6) A, b=6.6415(7) A, c=11.013(1) A, α=104.055(2) deg., β=93.342(2) deg., γ=110.589(2) deg. , Z=2, R(F)=4.56% for 100 parameters with 1530 reflections with I>2σ(I); 2, triclinic, space group P1-bar, a=7.0545(5) A, b=7.4656(5) A, c=10.0484(6) A, α=106.995(1) deg., β=108.028(1) deg., γ=98.875(1) deg., Z=2, R(F)= 2.43% for 128 parameters with 2187 reflections with I>2σ(I); 3, monoclinic, space group P2 1 /c, a=7.3067(6) A, b=8.1239(7) A, c=13.651(1) A, β=100.375(2) deg., Z=4, R(F)=4.31% for 105 parameters

Mastering Search Analytics Measuring SEO, SEM and Site Search

CERN Document Server

Chaters, Brent

2011-01-01

Many companies still approach Search Engine Optimization (SEO) and paid search as separate initiatives. This in-depth guide shows you how to use these programs as part of a comprehensive strategy-not just to improve your site's search rankings, but to attract the right people and increase your conversion rate. Learn how to measure, test, analyze, and interpret all of your search data with a wide array of analytic tools. Gain the knowledge you need to determine the strategy's return on investment. Ideal for search specialists, webmasters, and search marketing managers, Mastering Search Analyt

Synthesis and crystal structure of Na6[(UO2)3O(OH)3(SeO4)2]2·10H2O

International Nuclear Information System (INIS)

Baeva, E.Eh.; Serezhkina, L.B.; Virovets, A.V.; Peresypkina, E.V.

2006-01-01

The complex Na 6 [(UO 2 ) 3 O(OH) 3 (SeO 4 ) 2 ] 2 ·10H 2 O (I) is synthesized and studied by monocrystal X-ray diffraction. The compound crystallizes in the orthorhombic crystal system with the unit cell parameters: a=14.2225(7) A, b=18.3601(7) A, c=16.5406(6) A, V=4319.2(3) A 3, Z=4, space group Cmcm, R 1 =0.0406. Compound I is found to be a representative of the crystal-chemical group A 3 M 3 M 3 2 T 2 3 (A=UO 2 2+ , M 3 =O 2- , M 2 =OH - , T 3 =SeO 4 2- ) of the uranyl complexes; it contains layer uranium-containing groups [(UO 2 ) 3 O(OH) 3 (SeO 4 ) 2 ] 3- . These layers are linked to form a three-dimensional cage through bonds formed by the sodium atoms with the oxygen atoms of the uranyl ions and SeO 4 groups that belong to different layers [ru

Estudio de las propiedades mecánicas del sistema óseo

OpenAIRE

Alvaro Mendoza G.

2011-01-01

Los estudios adelantados fueron realizados para el área de Biomecánica, tratando de que su desarrollo fuera lo más científico posible; y aplicado al estudio del sistema óseo del hombre, ya que él posee un material que tiene un comportamiento que hace posible las aplicaciones de conceptos mecánicos y físicos de la Ingenlerla para su análisis.

Estudio de los restos óseos humanos de Esquina de Huajra

Directory of Open Access Journals (Sweden)

Gheggi, María Soledad

2007-01-01

Full Text Available Se presentan los resultados obtenidos a partir del estudio de los restos óseos humanos de cinco entierros del sitio arqueológico Esquina de Huajra (ca. 1200-1480 A.D.. Las tareas realizadas incluyeron la caracterización biológica de la población en términos del perfil biológico (sexo y edad, estado de salud e indicadores óseos de uso del cuerpo. Podemos afirmar que el estado de salud general y específicamente los indicadores de estrés nutricional no son concluyentes para indicar niveles importantes de diferenciación en el acceso a los recursos alimenticios entre los individuos inhumados. Esta conclusión es apoyada por los resultados de análisis de isótopos estables de carbono y nitrógeno. El estudio de los marcadores de actividad física nos permitió afirmar que algunos individuos presentaron elevada frecuencia de trabajo físico exigente y diferencias en el patrón de actividades entre los sexos. Estos resultados son interpretados a la luz del conocimiento actual sobre la dinámica de las poblaciones prehispánicas de la quebrada de Humahuaca en el período temporal en cuestión.

Variation of Se, Zn, Co, Fe and Rb distribution in rats upon sequence of injection with SeO2 and glutathione

International Nuclear Information System (INIS)

Czauderna, M.; Samochocka, K.; Kwiathkowska, J.

1984-01-01

The contents of Se, Zn, Co, Fe and Rb in several organs of Wistar rats were determined by instrumental neutron activation analysis (INAA) after injections of SeO 2 and glutathione (GSH). Se was incorporated in all the examined organs, and the efficiency of incorporation does not depend upon the sequence of injection with SeO 2 and GSH. The sequence of these injections affects the contents of the other elements in all the examined organs. (author)

Estudio de las propiedades mecánicas del sistema óseo

Directory of Open Access Journals (Sweden)

Alvaro Mendoza G.

1991-03-01

Full Text Available Los estudios adelantados fueron realizados para el área de Biomecánica, tratando de que su desarrollo fuera lo más científico posible; y aplicado al estudio del sistema óseo del hombre, ya que él posee un material que tiene un comportamiento que hace posible las aplicaciones de conceptos mecánicos y físicos de la Ingenlerla para su análisis.

Accesos intraóseos: revisión y manejo.

OpenAIRE

Manrique Martínez, Juan Ignacio; Pons Morales, Sara; Casal Agudo, Carmen; García Aracil, Noelia; Castejón de la Encina, Mª Elena

2013-01-01

En la actualidad, se considera el acceso intraóseo (IO) una alternativa eficaz y rápida en los casos en los que el acceso intravenoso es difícil o imposible de conseguir en un tiempo preestablecido (shock grave o en la parada cardiorrespiratoria). El Grupo Español de Reanimación Cardiopulmonar Pediátrica y Neonatal (GERCPYN) recomienda el aprendizaje de las técnicas de colocación de los diferentes dispositivos de canalización intraósea que existen en el mercado en todos los cursos de reanimac...

Enfermedad óseo mineral relacionada con la enfermedad renal crónica: Klotho y FGF23; implicaciones cardiovasculares

Directory of Open Access Journals (Sweden)

Laura Salanova Villanueva

2016-07-01

Full Text Available Una de las principales causas de morbimortalidad en el paciente con enfermedad renal crónica es la cardiovascular. La inflamación y las alteraciones en el metabolismo óseo mineral son una condición patológica que conlleva aumento del riesgo cardiovascular en la enfermedad renal crónica. Los parámetros bioquímicos clásicos del metabolismo óseo mineral como fósforo, calcio, vitamina D y PTH tienen una implicación muy conocida en el riesgo cardiovascular. Los nuevos marcadores, FGF23 y klotho, también podrían estar implicados en la enfermedad cardiovascular.

Biomateriales utilizados en cirugía ortopédica como sustitutos del tejido óseo

Directory of Open Access Journals (Sweden)

Cristian Alexis Martinez

2012-09-01

Full Text Available El presente artículo analiza empleo de los biocerámicos en aplicaciones clínicas, como sustitutos óseos, desarrollos en Argentina y Europa, y los productos comerciales disponibles. Los cerámicos para este propósito son bioinertes, bioactivos o reabsorbibles. Estos se caracterizan por su biocompatibilidad, capacidad de degradación controlada, y liberación de iones biológicamente activos (Ca++ y PO4--- al medio fisiológico. Además, estos materiales presentan ventajas respecto al hueso de banco, tales como su disponibilidad, reproducibilidad de sus propiedades físicas, químicas y mecánicas; capacidad de absorción  y liberación paulatina de fármacos. Los biocerámicos constituyen un sustrato viable para cultivos celulares y el desarrollo de nuevas variantes de sustitutos óseos, que incorporen fases orgánicas.

Hydrothermal synthesis, structures and optical properties of A2Zn3(SeO3)4·XH2O (A=Li, Na, K; X=2 or 0)

Science.gov (United States)

Liu, Yunsheng; Mei, Dajiang; Xu, Jingli; Wu, Yuandong

2015-12-01

New alkali metal zinc selenites, A2Zn3(SeO3)4·XH2O (A=Li, Na, K; X=2 or 0) were prepared through hydrothermal reactions. Li2Zn3(SeO3)4·2H2O (1) crystallizes in the monoclinic space group P21/c with lattice parameters a=8.123(4), b=9.139(4), c=7.938(3) Å, β=112.838(9)°. Na2Zn3(SeO3)4·2H2O (2) crystallizes in the monoclinic space group C2/c with lattice parameters a=15.7940(18), b=6.5744(8), c=14.6787(17) Å, β=107.396(3)°. K2Zn3(SeO3)4 (3) crystallizes in the monoclinic space group C2/c with lattice parameters a=11.3584(12), b=8.6091(9), c=13.6816(14) Å, β=93.456(2)°. The anionic structures are composed of [Zn3O12]18- sheets, chains, and "isolated" units in compound 1, 2, 3, respectively, and trigonal pyramids SeO32-. The compounds were characterized by the solid state UV-vis-NIR diffuse reflectance spectroscopy, infrared spectra and thermogravimetric analysis.

Facilitated stimulus-response associative learning and long-term memory in mice lacking the NTAN1 amidase of the N-end rule pathway.

Science.gov (United States)

Balogh, S A; McDowell, C S; Tae Kwon, Y; Denenberg, V H

2001-02-23

The N-end rule relates the in vivo half-life of a protein to the identity of its N-terminal residue. Inactivation of the NTAN1 gene encoding the asparagine-specific N-terminal amidase in mice results in impaired spatial memory [26]. The studies described here were designed to further characterize the effects upon learning and memory of inactivating the NTAN1 gene. NTAN1-deficient mice were found to be better than wild-type mice on black-white and horizontal-vertical discrimination learning. They were also better at 8-week Morris maze retention testing when a reversal trial was not included in the testing procedures. In all three tasks NTAN1-deficient mice appeared to use a strong win-stay strategy. It is concluded that inactivating the asparagine-specific branch of the N-end rule pathway in mice results in impaired spatial learning with concomitant compensatory restructuring of the nervous system in favor of non-spatial (stimulus-response) learning.

Técnica de diafanización para describir el desarrollo embrionario del sistema óseo. Revisión de la literatura

OpenAIRE

Sandoval, David; Pontificia Universidad Javeriana - Cali; Tellez, Jelua; Pontificia Universidad Javeriana - Cali; Rivera, Guillermo; Departamento de Ciencias Básicas de la Facultad de Ciencias de la Salud, Pontificia Universidad Javeriana, Cali; Moreno, Sandra; Departamento de Ciencias Básicas de la Facultad de Ciencias de la Salud, Pontificia Universidad Javeriana, Cali; Moreno, Freddy; Departamento de Ciencias Básicas de la Facultad de Ciencias de la Salud, Pontificia Universidad Javeriana, Cali

2017-01-01

Introducción: La técnica anatómica de diafanización consiste en transparentar los tejidosblandos de organismos vertebrados (aclaramiento), para teñir los tejidos mineralizadosy poder visualizar los componentes óseos y cartilaginosos (tinción). Objetivo: Revisarlos reportes disponibles en la literatura especializada que han descrito el desarrolloembrionario del sistema óseo de mamíferos a través de técnicas de diafanización ytinción simple o tinción doble. Materiales y métodos: Se revisó la li...

Comportamiento de los tejidos óseo y mucoso perimplantarios con la utilización de un sistema de implantes dentales de plataforma estrecha. Un año de seguimiento

OpenAIRE

Fernández Formoso, Noelia

2012-01-01

Se asignaron un total de 43 pacientes en dos grupos: grupo control con implantes convencionales y grupo test con implantes de plataforma estrecha. Se procedió a medir los siguientes parámetros: medición del nivel óseo y medición de los tejidos blandos. Se utilizaron dos métodos radiográficos: método convencional y la técnica modificada. Resultados: 1)nivel óseo: la pérdida de tejido óseo con plataforma estrecha mejora los resultados obtenidos con plataforma convencional, 2)tejidos blandos: me...

Local structure of Rb2Li4(SeO4)3·2H2O by the modeling of X-ray diffuse scattering — from average-structure to microdomain model

International Nuclear Information System (INIS)

Komornicka, Dorota; Wołcyrz, Marek; Pietraszko, Adam

2012-01-01

Local structure of dirubidium tetralithium tris(selenate(VI)) dihydrate — Rb 2 Li 4 (SeO 4 ) 3 · 2H 2 O has been determined basing on the modeling of X-ray diffuse scattering. The origin of observed structured diffuse streaks is SeO 4 tetrahedra switching between two alternative positions in two quasi-planar layers existing in each unit cell and formation of domains with specific SeO 4 tetrahedra configuration locally fulfilling condition for C-centering in the 2a×2b×c superstructure cell. The local structure solution is characterized by a uniform distribution of rather large domains (ca. thousand of unit cells) in two layers, but also monodomains can be taken into account. Inside a single domain SeO 4 tetrahedra are ordered along ab-diagonal forming two-string ribbons. Inside the ribbons SeO 4 and LiO 4 tetrahedra share the oxygen corners, whereas ribbons are bound to each other by a net of hydrogen bonds and fastened by corner sharing SeO 4 tetrahedra of the neighboring layers. - Graphical abstract: Experimental sections of the reciprocal space showing diffraction effects observed for RLSO. Bragg spots are visible on sections with integer indices (1 kl section — on the left), streaks — on sections with fractional ones (1.5 kl section — on the right). At the center: resulting local structure of the A package modeled as a microdomain: two-string ribbons of ordered oxygen-corners-sharing SeO 4 and LiO 4 terahedra extended along ab-diagonal are seen; ribbons are bound by hydrogen bonds (shown in pink); the multiplied 2a×2b unit cell is shown. Highlights: ► X-ray diffuse scattering in RLSO was registered and modeled. ► The origin of diffuse streaks is SeO 4 tetrahedra switching in two structure layers. ► The local structure is characterized by a uniform distribution of microdomains. ► Inside a single domain SeO 4 tetrahedra are ordered along ab-diagonal forming ribbons. ► The ribbons are bound to each other by a net of hydrogen bonds.

Synthesis and Physical Properties of the Oxofluoride Cu2(SeO3)F2.

Science.gov (United States)

Mitoudi-Vagourdi, Eleni; Papawassiliou, Wassilios; Müllner, Silvia; Jaworski, Aleksander; Pell, Andrew J; Lemmens, Peter; Kremer, Reinhard K; Johnsson, Mats

2018-04-16

Single crystals of the new compound Cu 2 (SeO 3 )F 2 were successfully synthesized via a hydrothermal method, and the crystal structure was determined from single-crystal X-ray diffraction data. The compound crystallizes in the orthorhombic space group Pnma with the unit cell parameters a = 7.066(4) Å, b = 9.590(4) Å, and c = 5.563(3) Å. Cu 2 (SeO 3 )F 2 is isostructural with the previously described compounds Co 2 TeO 3 F 2 and CoSeO 3 F 2 . The crystal structure comprises a framework of corner- and edge-sharing distorted [CuO 3 F 3 ] octahedra, within which [SeO 3 ] trigonal pyramids are present in voids and are connected to [CuO 3 F 3 ] octahedra by corner sharing. The presence of a single local environment in both the 19 F and 77 Se solid-state MAS NMR spectra supports the hypothesis that O and F do not mix at the same crystallographic positions. Also the specific phonon modes observed with Raman scattering support the coordination around the cations. At high temperatures the magnetic susceptibility follows the Curie-Weiss law with Curie temperature of Θ = -173(2) K and an effective magnetic moment of μ eff ∼ 2.2 μ B . Antiferromagnetic ordering below ∼44 K is indicated by a peak in the magnetic susceptibility. A second though smaller peak at ∼16 K is tentatively ascribed to a magnetic reorientation transition. Both transitions are also confirmed by heat capacity measurements. Raman scattering experiments propose a structural phase instability in the temperature range 6-50 K based on phonon anomalies. Further changes in the Raman shift of modes at ∼46 K and ∼16 K arise from transitions of the magnetic lattice in accordance with the susceptibility and heat capacity measurements.

Inmunología de los peces óseos. Revisión

OpenAIRE

Miguel Rubio-Godoy

2010-01-01

Los peces óseos poseen sistemas inmunitarios capaces de llevar a cabo respuestas humorales y celulares tanto innatas como específicas; esencialmente, los sistemas defensivos de los peces teleósteos tienen los mismos componentes que los de los mamíferos, a quienes anteceden evolutivamente. En esta revisión se describen los componentes de los sistemas inmunitarios de los teleósteos, enfatizando las particularidades presentes en los peces mas no en los mamíferos, cuyos sistemas defensivos se con...

Ética y estudio de restos óseos humanos

Directory of Open Access Journals (Sweden)

Dahinten, Silvia Lucrecia

2007-01-01

Full Text Available La Antropología Biológica atraviesa una fase de cuestionamiento respecto al estudio de restos óseos provenientes de poblaciones originarias motivado por debates surgidos en diferentes ámbitos. Esta situación obliga a una definición por parte de la Asociación de Antropología Biológica Argentina (AABA, destinada a establecer y comunicar los objetivos de la disciplina, su aporte a la comprensión de la historia tanto de los pueblos originarios como de otras poblaciones que habitan y habitaron el territorio nacional y su posición en torno a la conservación del patrimonio biológico y cultural. Este objetivo se considera primordial para sentar las bases que permitan el diálogo con los diferentes actores interesados, partiendo del hecho que la comunidad bioantropológica argentina asume un compromiso cabal con la identidad y bienestar de los pueblos originarios. Por mandato de la Asamblea de las VII JAAB, se encomendó a los autores la redacción de un documento base que representara la posición de la AABA frente a esta situación. A tal fin, se realizó una encuesta entre los asociados dedicados al estudio de restos óseos humanos y responsables de colecciones, con el fin de recabar opinión sobre diferentes aspectos del trabajo bioantropológico en este campo. La presente ponencia resume los resultados de la encuesta y propone lineamientos que serán puestos a consideración de los miembros, para la redacción de un documento que represente el espíritu de la AABA en relación con este problema.

Regeneración ósea guiada: nuevos avances en la terapéutica de los defectos óseos

Directory of Open Access Journals (Sweden)

Verónica Gómez Arcila

Full Text Available Introducción: el procedimiento de regeneración ósea guiada ha demostrado ser una técnica exitosa para promover el llenado de defectos óseos presentes, así como para aumentar las dimensiones de rebordes alveolares atróficos previo a rehabilitación protésica convencional o implanto soportada. Objetivo: describir la utilización clínica de injerto aloplástico de b-fosfato tricálcico como material de relleno en la regeneración de defectos óseos alveolares. Presentación del caso: se presentó el caso de una paciente femenina de 57 años de edad quien acudió a la consulta odontológica por presencia de supuración en un diente anterosuperior, como consecuencia de un proceso infeccioso apical. Al examen clínico se observó resto radicular de incisivo central superior izquierdo e incisivo lateral superior izquierdo; radiográficamente se observó fractura radicular de incisivo central superior derecho. Posterior a la extracción de los restos radiculares, se empleó la técnica de regeneración ósea guiada, utilizando injerto aloplástico de b-fosfato tricálcico con una membrana de colágeno reabsorbible. Tres meses posteriores al tratamiento, se observó aumento en altura y anchura del reborde alveolar, con lo que se logró la conformidad estética y funcional deseada. Conclusión: el caso presentado revela resultados clínicos satisfactorios gracias a la neoformación de hueso observada y a la planificación adecuada del tratamiento con regeneración ósea guiada, por lo que el uso de injerto óseo, específicamente el injerto aloplástico b-fosfato tricálcico, en combinación con las membranas de barrera, se sugiere para el manejo de los defectos óseos alveolares.

Synthesis of rare-earth selenate and selenite materials under 'sol-gel' hydrothermal conditions: crystal structures and characterizations of La(HSeO3)(SeO4) and KNd(SeO4)2

International Nuclear Information System (INIS)

Liu Wei; Chen Haohong; Yang Xinxin; Li Mangrong; Zhao Jingtai

2004-01-01

Two rare-earth compounds containing selenium atoms, La(HSeO 3 )(SeO 4 ) with a new open framework structure and KNd(SeO 4 ) 2 with a layered structure, have been synthesized under ''sol-gel'' hydrothermal conditions for the first time. Single-crystals of La(HSeO 3 )(SeO 4 ) crystallize in the monoclinic system (P2 1 , a=8.5905(17)A, b=7.2459(14)A, c=9.5691(19)A, β=104.91(3) o , Z=2, RAll=0.032). The structure contains puckered polyhedral layers made of LaO x (x=9,10) and SeO 4 groups, which are connected via SeO 3 -uints to the 3D structure. The crytal structure of KNd(SeO 4 ) 2 (monoclinc, P2 1 /c, a=8.7182(17)A, b=7.3225(15)A, c=11.045(2)A, β=91.38(3) o , Z=4, RAll=0.051) contains honeycomb-like six-ring NdO 9 polyhedra forming layers which are further decorated with SeO 4 tetrahedra. The K + ions occupy the interspaces of these layers and provide the charge balance

Läbi raskuste tähtede poole: doktoritööde juhendajate kraadiõpingute kogemused ja nende seosed juhendamispraktikaga / Liina Lepp, Marvi Remmik, Äli Leijen, Mari Karm

Index Scriptorium Estoniae

2014-01-01

Juhendamispraktikat analüüsiva uurimuse eesmärk on kirjeldada Eestis tegutsevate juhendajate kujunemise tausta ning osutada võimalikele seostele nende kraadiõpingute kogemuste ja juhendamispraktika vahel

Estudio de biocompatibilidad de polímeros sintéticos y su aplicación en ingeniería de tejido óseo

OpenAIRE

Fernández, Juan Manuel

2011-01-01

El tejido óseo es el único capaz de repararse por sí mismo sin dejar cicatrices. Sin embargo, existen algunas afecciones, como las grandes fracturas o las osteonecrosis, en las que el tejido óseo no puede repararse. A lo largo de la historia de la humanidad, se han diseñado distintas estrategias para reparar el hueso dañado. Las terapias usadas en la actualidad, como los injertos o implantes, tienen varias desventajas, como la baja disponibilidad de dadores de injertos, problemas de osteointe...

Theoretical study on microhydration of SeO42-: On the number of water molecules necessary to stabilize the dianion

Science.gov (United States)

Pathak, Arup Kumar

2012-01-01

Microhydration of SeO42-·nH2O (n = 1-5) clusters are reported at B3LYP/Aug-cc-pvtz level of theory. Lower size hydrated clusters are stabilized by only double-hydrogen-bonding arrangements and the most stable conformer for higher size cluster (n > 3) contains a cyclic water ring. It is observed that at least one water molecule is necessary to stabilize the dianion in the gas phase against spontaneous electron loss. The microscopic theory based expression provides a route to predict the instability of bare SeO42- and to obtain the VDE for a wide range of cluster sizes including the bulk from the knowledge of the same for a few stable hydrated clusters.

Importancia fisiológica de los microminerales en el metabolismo óseo

OpenAIRE

Unger, M.; Chiappe Barbará. M.A.

2008-01-01

Aunque presentes en pequeñas cantidades dentro del organismo, losoligoelementos son tan necesarios para el normal funcionamiento delorganismo como los macro minerales. El calcio y el fósforo son losprotagonistas en la mineralización del tejido óseo, pero la gran resistencia del mismo no se debe únicamente a su contenido en sales sino también a su trama proteica de estructura compleja. En medicina veterinaria los síndromes mejor definidos de carencias de micro minerales son los del cobre, el z...

Success in Mathematics within a Challenged Minority: The Case of Students of Ethiopian Origin in Israel (SEO)

Science.gov (United States)

Mulat, Tiruwork; Arcavi, Abraham

2009-01-01

Many studies have reported on the economical, social, and educational difficulties encountered by Ethiopian Jews since their immigration to Israel. Furthermore, the overall academic underachievement and poor representation of students of Ethiopian origin (SEO) in the advanced mathematics and science classes were highlighted and described. Yet,…

Pengembangan Model CYBER CLUSTER E-COMMERCE Berbasis CMS dan SEO Produk UMKM

Directory of Open Access Journals (Sweden)

Dwi Agus Diartono

2015-07-01

Abstract Problems that are often faced by UMKM (SME is the limited number and range of marketing and sales of its products. So is the competition of similar products can occur by inter-local products or products that come from outside. This is because marketing and sales are still done conventionally and done individually. This study intends to make the implementation of a model system of E-Commerce SME product in an area or district with the participation of empowerment models cyber group (cluster cyber participatory in performing web linking system that was developed using Optimisazion Search Engine (SEO and Content Management System (CMS. The goal is for the web that can be developed easily ranked the Web search page (search engines and always updated content and rank. The benefit of this research is to improve the marketing and sale of products of SMEs to global market and making it easy to find the web address and and are found as often appear in top positions in the search engines like google. Outcomes of this research is based CMS website MSME products and optimized the model of internal and external links that always appears at the top position of the search range. Methods This study uses an action research, the model of structured systems development waterfall model (waterfall. Its own web application developed with prototype models, according to consumer needs.   Keywords—Cyber-Cluster, SEO, CMS, SME

Chemical and structural evolution in the Th-SeO3(2-)/SeO4(2-) system: from simple selenites to cluster-based selenate compounds.

Science.gov (United States)

Xiao, Bin; Langer, Eike; Dellen, Jakob; Schlenz, Hartmut; Bosbach, Dirk; Suleimanov, Evgeny V; Alekseev, Evgeny V

2015-03-16

While extensive success has been gained in the structural chemistry of the U-Se system, the synthesis and characterization of Th-based Se structures are widely unexplored. Here, four new Th-Se compounds, α-Th(SeO3)2, β-Th(SeO3)2, Th(Se2O5)2, and Th3O2(OH)2(SeO4)3, have been obtained from mild hydrothermal or low-temperature (180-220 °C) flux conditions and were subsequently structurally and spectroscopically characterized. The crystal structures of α-Th(SeO3)2 and β-Th(SeO3)2 are based on ThO8 and SeO3 polyhedra, respectively, featuring a three-dimensional (3D) network with selenite anions filling in the Th channels along the a axis. Th(Se2O5)2 is a 3D framework composed of isolated ThO8 polyhedra interconnected by [Se2O5](2-) dimers. Th3O2(OH)2(SeO4)3 is also a 3D framework constructed by octahedral hexathorium clusters [Th6(μ3-O)4(μ3-OH)4](12+), which are interlinked by selenate groups SeO4(2-). The positions of the vibrational modes associated with both Se(IV)O3(2-) and Se(VI)O4(2-) units, respectively, were determined for four compounds, and the Raman spectra of α- and β-Th(SeO3)2 are compared and discussed in detail.

Structural phase transformation in K2SeO4

International Nuclear Information System (INIS)

Iizumi, M.; Axe, J.D.; Shirane, G.; Shimaoka, K.

1977-01-01

Successive phase transformations in K 2 SeO 4 at T 1 = 130 K and T/sub c/ = 93 K were studied by the neutron-scattering technique. The superlattice reflections in the intermediate phase were found to be incommensurate with the lattice periodicity. The wave vector characterizing the reflections is q/sub delta/ = (1-delta) a*/3 with delta = 0.07 at 122.5 K. The deviation delta decreases with decreasing temperature with an apparently discontinuous jump to zero at T/sub c/. Below this temperature, the crystal remains commensurate and is known to be ferroelectric. The incommensurate-commensurate transition and the simultaneous occurrence of the commensurate phase and the spontaneous polarization are discussed using a Landau-type expansion of the free energy in which a term proportional to Q 3 (q/sub delta/) P/sub z/ (q 3 /sub delta/) plays an essential role in driving the incommensurate-commensurate phase transformation and in inducing the spontaneous polarization. Here, Q (q/sub delta/) is the amplitude of the primary atomic displacements with wave vector q/sub delta/ and P/sub z/(q 3 /sub delta/) is the polarization wave with wave vector q 3 /sub delta/ = 3delta (a*/3) and becomes the macroscopic polarization below T/sub c/. Above T/sub i/, a Σ 2 optic-phonon branch along (xi,0,0) shows a striking softening and ω/sub j/(q) for q approx. (1/3,0,0) tends to zero at T/sub i/. The softening results from a temperature-dependent decrease of the interlayer forces with ranges a/2 and a (a is one unit-cell length along the a axis) in the presence of strong and persisting forces with a range 3a/2. The intensities of the soft phonon were measured about different reciprocal-lattice points and were used to determine the nature of the soft-phonon mode and suggest a coupled translation of potassium ions with rotational motion of SeO 4 groups to be the origin of the lattice instability

Two new octahedral/pyramidal frameworks containing both cation channels and lone-pair channels: syntheses and structures of Ba2MnIIMn2III(SeO3)6 and PbFe2(SeO3)4

International Nuclear Information System (INIS)

Johnston, Magnus G.; Harrison, William T.A.

2004-01-01

The hydrothermal syntheses, single crystal structures, and some properties of Ba 2 Mn II Mn 2 III (SeO 3 ) 6 and PbFe 2 (SeO 3 ) 4 are reported. These related phases contain three-dimensional frameworks of vertex (FeO 6 ) and vertex/edge linked (MnO 6 ) octahedra and SeO 3 pyramids. In each case, the MO 6 /SeO 3 framework encloses two types of 8 ring channels, one of which encapsulates the extra-framework cations and one of which provides space for the Se IV lone pairs. Crystal data: Ba 2 Mn 3 (SeO 3 ) 6 , M r =1201.22, monoclinic, P2 1 /c (No. 14), a=5.4717 (3)A, b=9.0636 (4)A, c=17.6586 (9)A, β=94.519 (1) o , V=873.03 (8)A 3 , Z=2, R(F)=0.031, wR(F 2 )=0.070; PbFe 2 (SeO 3 ) 4 , M r =826.73, triclinic, P1-bar (No. 2), a=5.2318 (5)A, b=6.7925 (6)A, c=7.6445 (7)A, α=94.300 (2) o , β=90.613 (2) o , γ=95.224 (2) o , V=269.73 (4)A 3 , Z=1, R(F)=0.051, wR(F 2 )=0.131

The incommensurable phase of K2SeO4 studied by means of EPR

International Nuclear Information System (INIS)

Dantas, M.S.S.

1988-11-01

The EPR technique was used to study SeO - 4 in K 2 SeO 4 in the temperature range of 130-93K where the crystal presents an incommensurable phase, characterized by the wave vector q-vector = (1 - δ) a * /3. By fitting of line form with EPR the β parameter (critical exponent) could be determined. The found values were: β = 0.33 +- 0.03 and 2 β = 0.58 +- 0.06. A summary of the experimental values of β found in literature is presented. The mean value of these measurements β = 0.347 +- 0.03 fits to the calculated value β = 0.3455 +- 0.0020 for the 3d XY model. It was possible to detect a change in the modulation of the plane wave regime to multisoliton regime through the δ parameter obtained also by fitting of line form. This parameter is related to soliton density (n s ), ''lock-in'' incommensurable transition order parameter. Close to T c , n s does not follow theoretical predictions and saturates in a value different than zero. This result was interpreted as due to mesh defects which fix phase modulation and create metastable states that may lead to a chaotic state between the multisolitons phase and ''lock-in'' phase. (A.C.A.S.) [pt

Extended networks, porous sheets, and chiral frameworks. Thorium materials containing mixed geometry anions: Structures and properties of Th(SeO3)(SeO4), Th(IO3)2(SeO4)(H2O)3.H2O, and Th(CrO4)(IO3)2

International Nuclear Information System (INIS)

Sullens, Tyler A.; Almond, Philip M.; Byrd, Jessica A.; Beitz, James V.; Bray, Travis H.; Albrecht-Schmitt, Thomas E.

2006-01-01

Three novel Th(IV) compounds containing heavy oxoanions, Th(SeO 3 )(SeO 4 ) (1), Th(IO 3 ) 2 (SeO 4 )(H 2 O) 3 .H 2 O (2), and Th(CrO 4 )(IO 3 ) 2 (3), have been synthesized under mild hydrothermal conditions. Each of these three distinct structures contain trigonal pyramidal and tetrahedral oxoanions. Compound 1 adopts a three-dimensional structure formed from ThO 9 tricapped trigonal prisms, trigonal pyramidal selenite, SeO 3 2- , anions containing Se(IV), and tetrahedral selenate, SeO 4 2- , anions containing Se(VI). The structure of 2 contains two-dimensional porous sheets and occluded water molecules. The Th centers are found as isolated ThO 9 tricapped trigonal prisms and are bound by four trigonal pyramidal iodate anions, two tetrahedral selenate anions, and three coordinating water molecules. In the structure of 3, the Th(IV) cations are found as ThO 9 tricapped trigonal prisms. Each Th center is bound by six IO 3 1- anions and three CrO 4 2- anions forming a chiral three-dimensional structure. Second-harmonic generation of 532nm light from 1064nm radiation by a polycrystalline sample of 3 was observed. Crystallographic data (193K, MoKα, λ=0.71073): 1; monoclinic, P2 1 /c; a=7.0351(5)A, b=9.5259(7)A, c=9.0266(7)A, β=103.128(1), Z=4, R(F)=2.47% for 91 parameters with 1462 reflections with I>2σ(I); 2, monoclinic, P2 1 /n, a=7.4889(9)A, b=8.002(1)A, c=20.165(3)A, β=100.142(2), Z=4, R(F)=4.71% for 158 parameters with 2934 reflections with I>2σ(I); 3, orthorhombic, P2 1 2 1 2 1 , a=7.3672(5)A, b=9.3617(6)A, c=11.9201(7)A, Z=4, R(F)=2.04% for 129 parameters with 2035 reflections with I>2σ(I)

Elaboración de un cemento óseo de fosfato de calcio con una adición de biovidrio

Directory of Open Access Journals (Sweden)

Erwin Ciro

2015-03-01

Full Text Available Un cemento óseo se sintetizó a partir CaCO3 y CaHPO4, en un tratamiento térmico a 1.400 °C, el material sintetizado fue enfriado rápidamente, con un chorro de aire. El cemento óseo fue mezclado con biovidrio en un 10% en peso (BC-10BG y luego molido y caracterizado mediante Distribución de Tamaño de Partícula (DTP, Difracción y Fluorescencia de rayos X (DRX y FRX. La mezcla, cemento-biovidrio, y el cemento sólo fueron caracterizados fisicomecánicamente con pruebas de resistencia a la compresión, microdureza, tiempo de cohesión y fraguado. Con el fin de observar tendencias a la precipitación en los estudios in-vitro, se evaluaron adicionalmente otras dos composiciones con biovidrio del 5 y del 15% en peso, por DRX, SEM y FTIR-ATR. Las fases cristalinas encontradas inicialmente corresponden en el cemento óseo al α-TCP, β-TCP, Ca2P2O7 y CaHPO4, por su parte en el biovidrio se detectó, en una parte de su estructura cristalina, la fase whitlockita. En términos físicos, los tiempos de manipulación y las propiedades mecánicas corresponden a un cemento para el relleno de cavidades óseas. Las pruebas in-vitro mostraron un efecto bioactivo progresivo conforme aumenta el tiempo de exposición.

Synthesis, structure, and characterization of two new bismuth(III) selenite/tellurite nitrates: [(Bi3O2)(SeO3)2](NO3) and [Bi(TeO3)](NO3)

Science.gov (United States)

Meng, Chang-Yu; Wei, Ming-Fang; Geng, Lei; Hu, Pei-Qing; Yu, Meng-Xia; Cheng, Wen-Dan

2016-07-01

Two new bismuth(III) selenite/tellurite nitrates, [(Bi3O2)(SeO3)2](NO3) and [Bi(TeO3)](NO3), have been synthesized by conventional facile hydrothermal method at middle temperature 200 °C and characterized by single-crystal X-ray diffraction, powder diffraction, UV-vis-NIR optical absorption spectrum, infrared spectrum and thermal analylsis. Both [(Bi3O2)(SeO3)2](NO3) and [Bi(TeO3)](NO3) crystallize in the monoclinic centronsymmetric space group P21/c with a=9.9403(4) Å, b=9.6857(4) Å, c=10.6864(5) Å, β=93.1150(10)° for [(Bi3O2)(SeO3)2](NO3) and a=8.1489(3) Å, b=9.0663(4) Å, c=7.4729(3) Å, β=114.899(2)° for Bi(TeO3)(NO3), respectively. The two compounds, whose structures are composed of three different asymmetric building units, exhibit two different types of structures. The structure of [(Bi3O2)(SeO3)2](NO3) features a three-dimensional (3D) bismuth(III) selenite cationic tunnel structure [(Bi3O2)(SeO3)2] 3∞ with NO3- anion group filling in the 1D tunnel along b axis. The structure of [Bi(TeO3)](NO3) features 2D bismuth(III) tellurite [Bi(TeO3)2]2∞ layers separated by NO3- anion groups. The results of optical diffuse-reflectance spectrum measurements and electronic structure calculations based on density functional theory methods show that the two compounds are wide band-gap semiconductors.

Improving the visibility and use of digital repositories through SEO a LITA guide

CERN Document Server

Arlitsch, Kenning

2013-01-01

Recent OCLC surveys show that less than 2 percent of library users begin their search on a library website, which is why search engine optimization (SEO) is so crucial. And though a survey of faculty researchers at four major universities showed that most consider Google and Google Scholar amazingly effective for their research, low Google Scholar indexing ratios for library institutional repositories is widespread because it ignores common library metadata. Arlitsch and OBrien, who have presented and published widely on the topic, show how to ensure that high-value content is visible to resea

New quaternary alkali metal cadmium selenites, A2Cd(SeO3)2 (A = K, Rb, and Cs) and Li2Cd3(SeO3)4

Science.gov (United States)

Lü, Minfeng; Jo, Hongil; Oh, Seung-Jin; Ok, Kang Min

2017-12-01

A series of new alkali metal cadmium selenites, A2Cd(SeO3)2 (A = K, Rb, and Cs) and Li2Cd3(SeO3)4 have been synthesized in phase pure forms through hydrothermal and solid-state reactions. Structural analyses using single crystal X-ray diffraction indicate that while A2Cd(SeO3)2 and Li2Cd3(SeO3)4 reveal layered structures consisting of CdO6 and SeO3 polyhedra, their symmetry, bonding modes, and the orientation of lone pairs on Se4+ cations are different. A closer examination suggests that the observed structural variations found in the reported materials are attributed to the structure-directing effect of alkali metal cations with different sizes. Scanning electron microscopy/energy dispersive analysis by X-ray, thermogravimetric analysis, Infrared and UV-vis diffuse reflectance spectroscopy, transformation reactions under hydrothermal conditions, and local dipole moment calculations for the reported materials are also reported.

Correction of bone defects by tissue Engineering Corrección de defectos óseos en el área de Ingeniería tisular

Directory of Open Access Journals (Sweden)

Simón Yobanny Reyes López

2013-01-01

Full Text Available Currently, bone defects cases represent a major impact on health due to how often they oc­cur because of trauma, fractures, congenital or degenerative diseases. Now, bone implants to large volume are severely restricted because of the diffusion limitations in the interaction with the environment of the host for nutrients, gas exchange and waste disposal. That is why the correction of bone defects has become very important in the field of tissue engi­neering looking to improve clinical strategies for treatment. The purpose of this review is to provide an overview of the development of scaffolds for bone tissue regeneration, showing the progress made in the in vitro and in vivo in recent decadesHoy en día, los defectos óseos representan uno de los casos de mayor impacto en la salud debido a la frecuencia con que éstos ocurren a causa de traumatismos, fracturas, enferme­dades congénitas o degenerativas. En la actualidad, los implantes de tejido óseo de gran volumen se encuentran severamente restringidos a causa de las limitaciones de difusión en la interacción con el ambiente del huésped para los nutrientes, intercambio gaseoso y eliminación de desechos. Es por ello que la corrección de los defectos óseos ha cobrado gran importancia en el área de Ingeniería tisular buscando mejorar las estrategias clínicas para su tratamiento. El propósito de esta revisión es proporcionar un panorama general del desarrollo de andamios para la regeneración de tejido óseo, mostrando los avances logrados en los ensayos in vitro e in vivo en la última década.

Dielectric and ferroelectric sensing based on molecular recognition in Cu(1,10-phenlothroline)2SeO4.(diol) systems

Science.gov (United States)

Ye, Heng-Yun; Liao, Wei-Qiang; Zhou, Qionghua; Zhang, Yi; Wang, Jinlan; You, Yu-Meng; Wang, Jin-Yun; Chen, Zhong-Ning; Li, Peng-Fei; Fu, Da-Wei; Huang, Songping D.; Xiong, Ren-Gen

2017-02-01

The process of molecular recognition is the assembly of two or more molecules through weak interactions. Information in the process of molecular recognition can be transmitted to us via physical signals, which may find applications in sensing and switching. The conventional signals are mainly limited to light signal. Here, we describe the recognition of diols with Cu(1,10-phenlothroline)2SeO4 and the transduction of discrete recognition events into dielectric and/or ferroelectric signals. We observe that systems of Cu(1,10-phenlothroline)2SeO4.(diol) exhibit significant dielectric and/or ferroelectric dependence on different diol molecules. The compounds including ethane-1,2-diol or propane-1,2-diol just show small temperature-dependent dielectric anomalies and no reversible polarization, while the compound including ethane-1,3-diol shows giant temperature-dependent dielectric anomalies as well as ferroelectric reversible spontaneous polarization. This finding shows that dielectricity and/or ferroelectricity has the potential to be used for signalling molecular recognition.

Effects of additions of dimethyl siloxanes and ethylene oxide (SEO) copolymers in tensile break (Tb), in gels and swelling percentage of poly(n-vinyl-2-pyrrolidone) (PVP) crosslinking films by electron beams

International Nuclear Information System (INIS)

Souza, A.; Miranda, A.; Hutzler, B.; Silva, L.G.A.; Nunes, S.P.

1997-01-01

When PVP gels are irradiated a self-supported film formation occur because of a crosslinking process. Such process consists of the recombination of the macro radicals during the direct or indirect interaction of ionizing radiation producing tridimensional networks. The aim of this work is to improve the tensile break (Tb) of the film without any harm to its biomedic characteristics. Thus, the SEO copolymers were chosen like coadjuvants, which show excellent hydrophilic characteristic and have been used for medical purposes. It is observed that films constituted by 6% PVP in the presence of the agar show a maximum Tb equal to 0,05 Mpa. The adding of 2,5% of the SEO in such films increase the maximum Tb to 0,08 MPa, the elevation was of 60%.It is noticed also that the increase of SEO concentration promotes an increase in the gels percentage and a decrease of the swelling percentage. So we conclude that the presence of the SEO favors the increase of crosslinking degree where 2,5% of the copolymers in films constituted by 6% of PVP and 0,4% of agar are enough to increase the Tb by 60%. (author). 13 refs., 4 figs

Estudio de las propiedades mecánicas del sistema óseo (segunda parte)

OpenAIRE

Mendoza, Alvaro

2011-01-01

Los estudios se hicieron bajo la supervisión del área de Biomecánica. Los ensayos dieron a conocer los valores reales de los esfuerzos mecánicos que es capaz de resistir el tejido óseo. Se elaboraron curvas de esfuerzo-deformación, con la ayuda de deformímetros mecánicos y rosetas de deformación, encontrándose las diferentes propiedades mecánicas y dando una base sólida para estudios posteriores en el área, que ayuden aún más al desarrollo de la bioingeniería en Colombia.

Refinement of hydrogen positions in (NH4)2SeO4

International Nuclear Information System (INIS)

Loose, A.; Mel'nik, G.; Zink, N.; Wozniak, K.; Dominiak, P.; Smirnov, L.S.; Pawlukojc, A.; Shuvalov, L.A.

2005-01-01

The crystal structure of ammonium selenate has been studied by means of single crystal X-ray and neutron diffraction with the purpose of the refinement of hydrogen positions. The refined hydrogen positions obtained by single crystal neutron diffraction show that N-H bond lengths form a regular tetrahedron in an ammonium ion. The single crystal X-ray diffraction data show that N-H bond lengths are shorter than those obtained by neutron diffraction and are not equal between themselves. Thus, the comparison of the results of X-ray and neutron diffraction allows one to suggest that the shorter N-H bond lengths by X-ray diffraction reflect the distribution of the electron charge density of ammonium ions within the (NH 4 ) 2 SeO 4 crystal lattice

Production of urinary selenium metabolites in the rat following 75SeO32- administration

International Nuclear Information System (INIS)

Kiker, K.W.; Burk, R.F.

1974-01-01

Urinary metabolites of 75 Se were studied in male Holtzmann rats fed a Torula yeast diet with either no selenium (basal) or 0.5 ppM selenium (selenium) added as sodium selenite. The animals were anesthetized, a ureter was cannulated, and 20 μCi of 75 SeO 3 2- were injected intraportally. Only a small fraction (1.3 percent) of the injected 75 Se was excreted in 6 h by animals fed the basal diet but 13.3 percent was excreted by animals fed the selenium diet. Paper chromatography showed that both groups excreted mostly inorganic 75 Se in the first 10 min. A decrease in 75 Se excretion followed, and then, 70 min after the collection was started, the selenium diet group had an increase in 75 Se excretion which persisted for the rest of the 6 h and consisted mainly of the organic metabolites trimethylselenonium ion and U-2. 75 Se excretion remained low in the basal diet group. Liver uptake and release of 75 Se in the 1 h following intraperitoneal 75 SeO 3 2- injection was much greater in the selenium diet rats than in the basal diet rats. These results suggest that the greater excretion of 75 Se by rats fed the selenium diet than that by rats fed the basal diet was due to increased production of organic urinary selenium metabolites by the liver. (U.S.)

Tratamiento de quistes óseos aneurismáticos con aloinjerto. [Treatment of aneurysmal bone cysts with allograft].

Directory of Open Access Journals (Sweden)

Dany Olivera Nùñez

2016-05-01

Full Text Available Antecedentes Los pacientes con quiste óseo aneurismático (QOA plantean dificultades diagnósticas y terapéuticas. Han sido descritas múltiples opciones terapéuticas. Objetivos Nuestro objetivo fue evaluar los resultados obtenidos en pacientes tratados con curetaje y relleno con aloinjerto óseo. Material y métodos  Fue analizado un total de 16 quistes, correspondientes a 15 pacientes, con un seguimiento mínimo de 28 meses y una mediana de seguimiento de 83 meses. Resultados La edad media de los niños fue de 10 años (rango: 3-16 . La principal complicación fue la recidiva en el 37,5% de los pacientes, siendo más frecuente cuando existió compromiso fisario (62,5%  vs. 12,5% sin compromiso; p=0,05. La frecuencia de recidiva no varió para ambos sexos, para las distintas edades analizadas y respecto al uso o no de fresa de alta velocidad. Conclusión Pensamos que el tratamiento realizado es seguro, pero tiene una alta tasa de recidivas, similar a las publicadas en otras series.

Paladar Hendido, Tratamiento quirúrgico, Injerto óseo combinado con plasma rico en plaquetas

OpenAIRE

Monserat Soto, Enrique R.; Ramos, Alexis; Tovar Mattar, Ricardo

2006-01-01

Hace unos años en las décadas 40 y 50 del siglo pasado se realizaron estudios, debido a que se observó hipodesarrollo del tercio medio de la cara como consecuencia del tratamiento quirúrgico en épocas tempranas de la vida del paciente con paladar fisurado. Cirujanos odontólogos comenzaron a utilizar el injerto óseo para conseguir la integridad anatómica del arco alveolar y así facilitar su desarrollo, la erupción dentaria y las funciones intermaxilares. Estas intervenciones son muy cruentas p...

Restos óseos humanos procedentes de las sierras de Guasayán

Directory of Open Access Journals (Sweden)

Drube, Hilton

2003-01-01

Full Text Available Los restos óseos humanos que son objeto del presente informe fueron exhumados en el área pedemontana oriental de las sierras de Guasayán, provincia de Santiago del Estero. La información disponible en cuanto a las condiciones del hallazgo y al contexto inhumatorio no es precisa, si bien corresponden a un sitio de ocupación prehispánico. El análisis e identificación de las piezas óseas permite constatar la presencia de al menos tres individuos en el material esqueletal. En efecto, forman parte del conjunto estudiado tres porciones distales de un mismo elemento esqueletal, en este caso correspondientes al húmero derecho. En la asignación de la edad probable de muerte solamente pudo tomarse como elemento diagnóstico el grado de atrición de las piezas dentales y algunos aspectos morfológicos generales de las piezas presentes. Con los datos obtenidos se infieren edades estimadas para el primer caso en 45-50 años; aproximadamente 30 años en el segundo; en tanto que el tercer caso correspondería a un subadulto. Dos de los individuos presentan rasgos morfoscópicos y métricos correspondientes al sexo femenino, en tanto que no existen elementos suficientes para evaluar la expresión dimórfica en el tercer caso. El neurocráneo correspondiente a uno de los individuos presenta deformación artificial del tipo tabular erecta en su variante plano sagital. Los datos recabados en el presente informe revisten carácter preliminar. Un análisis ulterior permitirá develar mayor información, particularmente en cuanto a las modificaciones de origen patológico y tafonómico observables en el material óseo en consideración.

Thermodynamic model for the solubility of BaSeO4(cr) in the aqueous Ba2+-SeO42--Na+-H+-OH--H2O system. Extending to high selenate concentrations

International Nuclear Information System (INIS)

Rai, Dhanpat; Felmy, Andrew R.; Kitamura, Akira; Yoshikawa, Hideki; Doi, Reisuke; Yoshida, Yasushi; Moore, Dean A.

2014-01-01

The aqueous solubility of BaSeO 4 (cr) was studied at 23 ± 2 C as a function of Na 2 SeO 4 concentrations (0.0001 to 4.1 mol kg -1 ) and equilibration periods (3 to 596 d). The equilibrium, approached from both the under- and over-saturation directions, in this system was reached rather rapidly (≤ 3d). The SIT and Pitzer's ion-interaction models were used to interpret these data and the predictions based on both of these models agreed closely with the experimental data. Thermodynamic analyses of the data show that BaSeO 4 (cr) is the solubility-controlling phase for Na 2 SeO 4 concentrations -1 . The log 10 K 0 value for the BaSeO 4 (cr) solubility product (BaSeO 4 (cr) ↔ Ba 2+ + SeO 4 2- ) calculated by the SIT and Pitzer models were very similar (-7.32 ± 0.07 with Pitzer and -7.25 ± 0.11 with SIT). Although the BaSeO 4 (cr) solubility product and Ba concentrations as a function of Na 2 SeO 4 concentrations predicted by both the SIT and Pitzer models are similar, the models required different sets of fitting parameters. For examples, (1) interpretations using the SIT model required the inclusion of Ba(SeO 4 ) 2 2- species with log 10 K 0 = 3.44 ± 0.12 for the reaction (Ba 2+ + 2SeO 4 2- ↔ Ba(SeO 4 ) 2 2- ), whereas these species are not needed for Pitzer model, and (2) at Na 2 SeO 4 concentrations > 0.59 mol kg -1 it was also possible to calculate the value for log 10 K 0 for the solubility product of a proposed double salt (Na 2 Ba(SeO 4 ) 2 (s) ↔ 2Na + + Ba 2+ + 2SeO 4 2- ) which for the SIT model is -(8.70 ± 0.29) whereas for the Pitzer model it is -(9.19 ± 0.19). The ion-interaction/ion-association parameters hitherto unavailable for both the SIT and Pitzer models required to fit these extensive data extending to as high ionic strengths as 12.3 mol kg -1 were determined. The model developed in this study is consistent with all of the reliable literature data, which was also used to extend the model to barium concentrations as high as 0.22 mol kg

Estudio de las propiedades mecánicas del sistema óseo (Segunda parte

Directory of Open Access Journals (Sweden)

Alvaro Mendoza

1998-09-01

Full Text Available Los estudios se hicieron bajo la supervisión del área de Biomecánica. Los ensayos dieron a conocer los valores reales de los esfuerzos mecánicos que es capaz de resistir el tejido óseo. Se elaboraron curvas de esfuerzo-deformación, con la ayuda de deformímetros mecánicos y rosetas de deformación, encontrándose las diferentes propiedades mecánicas y dando una base sólida para estudios posteriores en el área, que ayuden aún más al desarrollo de la bioingeniería en Colombia.

Ubiquitin conjugation by the N-end rule pathway and mRNAs for its components increase in muscles of diabetic rats

Science.gov (United States)

Lecker, S. H.; Solomon, V.; Price, S. R.; Kwon, Y. T.; Mitch, W. E.; Goldberg, A. L.

1999-01-01

Insulin deficiency (e.g., in acute diabetes or fasting) is associated with enhanced protein breakdown in skeletal muscle leading to muscle wasting. Because recent studies have suggested that this increased proteolysis is due to activation of the ubiquitin-proteasome (Ub-proteasome) pathway, we investigated whether diabetes is associated with an increased rate of Ub conjugation to muscle protein. Muscle extracts from streptozotocin-induced insulin-deficient rats contained greater amounts of Ub-conjugated proteins than extracts from control animals and also 40-50% greater rates of conjugation of (125)I-Ub to endogenous muscle proteins. This enhanced Ub-conjugation occurred mainly through the N-end rule pathway that involves E2(14k) and E3alpha. A specific substrate of this pathway, alpha-lactalbumin, was ubiquitinated faster in the diabetic extracts, and a dominant negative form of E2(14k) inhibited this increase in ubiquitination rates. Both E2(14k) and E3alpha were shown to be rate-limiting for Ub conjugation because adding small amounts of either to extracts stimulated Ub conjugation. Furthermore, mRNA for E2(14k) and E3alpha (but not E1) were elevated 2-fold in muscles from diabetic rats, although no significant increase in E2(14k) and E3alpha content could be detected by immunoblot or activity assays. The simplest interpretation of these results is that small increases in both E2(14k) and E3alpha in muscles of insulin-deficient animals together accelerate Ub conjugation and protein degradation by the N-end rule pathway, the same pathway activated in cancer cachexia, sepsis, and hyperthyroidism.

Tlhalošontši ya mongwalo: Go ngwala seo se sa tšweletšego ...

African Journals Online (AJOL)

Bontši bja baithuti ba maleme a Bathobaso ga bo tšee mongwalo go ba ye nngwe ya dithutwana tše bohlokwa tša maleme. Ka fao barutwana le batho ba bangwe ba go kgona go bala le go ngwala ga ba sa na le taba le thutwana ye ya mongwalo. Seo se dira gore go be le mabošaedi a mmalwa go akaretšwa a mopeleto, ...

Hidroxiapatita en defectos óseos craneales: Comunicación previa

Directory of Open Access Journals (Sweden)

Susana A Fernández Benítez

1997-12-01

Full Text Available Se exponen los resultados iniciales de un ensayo experimental y clínico, con gránulos de hidroxiapatita como implante en defectos óseos craneales aun radiológicos y microscópicos (BAAF el tiempo de los pasos de osificación craneal. Hubo crecimiento de fibroblasto en 7 días; en 2 meses y medio, crecimiento de osteoblastos y de hueso intramembranoso. En 3 meses la plastia presentaba consistencia ósea palpableThe initial results of an experimental and clinical assay using hydroxyapatite granules as implants in skull defects over 3 cm are exposed. An attempt is made to verify by clinical, radiological and microscopic examinations (BAAF the time of the cranial ossification steps. It was observed a growth of fibroblasts in 7 days, and of osteoblasts and intramembranous bone in 2 months and a half. 3 months later the plastic presented a palpable osteal consistency

Deuteron magnetic resonance in KD3(SeO3)2

International Nuclear Information System (INIS)

Kasahara, Masaru

1978-01-01

Quadrupole coupling constant and the direction of the principal axes of EFG tensor of deuterons in KD 3 (SeO 3 ) 2 are obtained from 40 to -106 0 C. It is confirmed that there exist two symmetrically inequivalent deuterons D(1) and D(2), and D(1) is ordered in the disordered phase. Deuterons D(2) are found to be dynamically disordered in the disordered phase. In the ordered phase, D(1) sites are divided into two inequivalent groups while the number of D(2) sites remains unchanged. The splitting of the resonance line of D(1) in the ordered phase depends on temperature as (T sub(tr)-T)sup(β), where T sub(tr) is 24.9 0 C and β is about 0.52 +- 0.08 in the temperature from 24.4 to 22 0 C and 0.46+-0.01 from 22 to 3 0 C. The relation between the splitting and the order parameter is discussed. (auth.)

Så galt går det når du ikke har styr på din SEO-partner

DEFF Research Database (Denmark)

Ivang, Reimer

2014-01-01

Interflora UK lå nummer et på Google på flere søgeord, men fra den ene dag til den anden havde Google fjernet dem. Så spørgsmålet er nu om Interflora UK ikke har styr på, hvad deres SEO partner foretager sig, om de var for grådige eller om de bare er blevet uretfærdig behandlet af Google....

The domain packing and temperature dependence of the spontaneous shear angle in ferroelastic compound KD3(SeO3)2

International Nuclear Information System (INIS)

Balagurov, A.M.; Beskrovnyj, A.I.; Savenko, B.N.; Shuvalov, L.A.

1984-01-01

The domain structure in ferroelastic phase of KD 3 (SeO 3 ) 2 (DKTS) conpound was investigated by neutron time-of-flight diffractometry. The temperature dependence of spontaneous shear angle was determined from diffraction intensity measurements for a lot of spots in reciprocal lattice. The domain structure was found similar with that of KH 2 PO 4

Modelo de remodelación de callo óseo de fractura de fémur humano

OpenAIRE

García Rodríguez, Javier

2014-01-01

De la revisión histórica realizada anteriormente se desprende que tanto la remodelación ósea externa como el modelado del comportamiento micromecánico del callo óseo de fractura han sido dos temas a los que se les ha prestado relativamente poca atención por parte de los científicos. En lo que a la remodelación externa se refiere, la razón de esta ausencia de trabajos científicos puede estar fundamentada en que este...

Estudio comparativo entre la densidad radiológica mediante tomografía computerizada de haz cónico y el metabolismo óseo de los maxilares en pacientes con y sin osteoporosis

OpenAIRE

Farré Pagès, Núria

2017-01-01

La osteoporosis se define como un trastorno esquelético sistémico. El individuo presenta una masa ósea baja con deterioro de la microarquitectura del tejido óseo, tanto trabecular como cortical, derivando en fragilidad ósea susceptible de fracturas. A nivel del metabolismo óseo, presenta una actividad osteoblástica y osteoclástica alterada. Esta patología se ve influenciada por factores como la edad, el tabaco, la alimentación, alteraciones hormonales, el uso de ciertos medicamentos, o exceso...

Ubiquitin ligases of the N-end rule pathway: assessment of mutations in UBR1 that cause the Johanson-Blizzard syndrome.

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Cheol-Sang Hwang

Full Text Available Johanson-Blizzard syndrome (JBS; OMIM 243800 is an autosomal recessive disorder that includes congenital exocrine pancreatic insufficiency, facial dysmorphism with the characteristic nasal wing hypoplasia, multiple malformations, and frequent mental retardation. Our previous work has shown that JBS is caused by mutations in human UBR1, which encodes one of the E3 ubiquitin ligases of the N-end rule pathway. The N-end rule relates the regulation of the in vivo half-life of a protein to the identity of its N-terminal residue. One class of degradation signals (degrons recognized by UBR1 are destabilizing N-terminal residues of protein substrates.Most JBS-causing alterations of UBR1 are nonsense, frameshift or splice-site mutations that abolish UBR1 activity. We report here missense mutations of human UBR1 in patients with milder variants of JBS. These single-residue changes, including a previously reported missense mutation, involve positions in the RING-H2 and UBR domains of UBR1 that are conserved among eukaryotes. Taking advantage of this conservation, we constructed alleles of the yeast Saccharomyces cerevisiae UBR1 that were counterparts of missense JBS-UBR1 alleles. Among these yeast Ubr1 mutants, one of them (H160R was inactive in yeast-based activity assays, the other one (Q1224E had a detectable but weak activity, and the third one (V146L exhibited a decreased but significant activity, in agreement with manifestations of JBS in the corresponding JBS patients.These results, made possible by modeling defects of a human ubiquitin ligase in its yeast counterpart, verified and confirmed the relevance of specific missense UBR1 alleles to JBS, and suggested that a residual activity of a missense allele is causally associated with milder variants of JBS.

Teoría y práctica del lenguaje ciberperiodístico. SEO, redes e (hipertextos//Theory and practice of the online journalism language. SEO, social networks and (hypertexts

Directory of Open Access Journals (Sweden)

Félix Arias Robles

2016-07-01

Full Text Available Este artículo estudia la redefinición del lenguaje periodístico ante la influencia de tres tendencias de la comunicación digital: el Search Engine Optimization (SEO, la inmediatez de las redes sociales y la fragmentación de contenidos mediante enlaces. Para ello, se compara el punto de vista de los editores web de los ocho medios españoles con mayor audiencia con las iniciativas implantadas en sus redacciones y las aportaciones teóricas sobre la escritura ciberperiodística. Este análisis revela la importancia que los medios digitales otorgan a la creación de contenidos adaptados a la web, pero también sus carencias en la adopción de acciones concretas para favorecer su desarrollo.

Irrigación arterial del músculo interóseo y del ligamento accesorio del músculo flexor digital profundo en la mano del caballo Arterial blood supply to the interosseus muscle and accessory ligament of the deep digital flexor tendon in the horse hand

OpenAIRE

J. NATALI; R.M. MOINE; M.S. GIGENA; A.M. GALÁN; E. MARTÍN

1999-01-01

El objetivo de este trabajo es el estudio del origen y distribución de las ramas arteriales al músculo interóseo y al ligamento accesorio del músculo flexor digital profundo de la mano del caballo. Se disecaron 20 manos a las que les fue inyectada la arteria mediana con látex coloreado. Las ramas arteriales entran al músculo interóseo por la cara dorsal y palmar del cuerpo y por sus bordes medial y lateral. Cada tendón de inserción del músculo interóseo recibió importantes ramas arteriales po...

Copas de metal trabecular y aloinjertos óseos impactados en defectos acetabulares graves. Resultados a los 2-4 años. [Impacted bone allografts and trabecular metal cups in severe acetabular bone defects: 2 to 4-year results.

Directory of Open Access Journals (Sweden)

Martín Buttaro

2014-06-01

Full Text Available In­tro­duc­ción: El objetivo principal es presentar la supervivencia del componente acetabular en pacientes con defectos graves reconstruidos con copas de metal trabecular combinadas con aloinjertos óseos impactados. Como objetivo secundario, se compararon estos resultados con los previamente obtenidos por los autores en defectos de similar gravedad utilizando anillos de reconstrucción y aloinjertos óseos. Materiales­ y­ Métodos:­ Se realizaron 20 cirugías de revisión en 19 pacientes (edad promedio 65 años, controlados, de forma prospectiva, con defectos acetabulares graves tipos 3A o 3B de Paprosky, por falla mecánica o infecciosa. El puntaje funcional promedio preoperatorio fue de 6,2 puntos, según la escala de Merle D ́Aubigne. Siempre se utilizaron copas de metal trabecular y aloinjertos óseos impactados. Resultados:­ A los 30 meses de seguimiento promedio (rango 24-48 meses, la supervivencia del componente acetabular fue del 95% (IC = 75%-98%. Un paciente presentó un aflojamiento acetabular por infección profunda a las 16 semanas de la revisión y fue tratado con una artroplastia de resección. El puntaje funcional promedio, excluido el caso con aflojamiento posoperatorio, fue de 16,2 puntos. Se observó la incorporación de los aloinjertos óseos en todos los pacientes, salvo el caso con infección profunda. La comparación con nuestras series históricas reconstruidas con anillos de Kerboull o con anillos GAP arrojó resultados altamente favorables a favor de las copas de metal trabecular.  Conclusiones: Las copas de metal trabecular asociadas a aloinjertos óseos impactados ofrecen una alternativa válida en cirugía de revisión acetabular con defectos graves del capital óseo. Este método se asocia a resultados más favorables que los obtenidos antes con anillos de reconstrucción.

Carcinoma primario intraóseo

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Susana Szlabi

2013-12-01

Full Text Available El carcinoma primario intraóseo (PIOC es un tumor poco frecuente, definido como carcinoma escamoso que se desarrolla en huesos maxilares, no teniendo conexión inicial con mucosa ni piel adyacente. Es localmente agresivo, con una incidencia de metástasis en ganglios regionales del 28% y en pulmón del 5%, en el momento del diagnóstico. Su origen puede ser de novo o a partir de otros tumores odontogénicos. Los huesos maxilares son los únicos que tienen en su interior tejidos epiteliales, por lo cual esta neoplasia se localiza exclusivamente en este sitio, predominantemente en la mandíbula. Los criterios diagnósticos del PIOC incluyen: histopatología de carcinoma escamocelular, ausencia de compromiso de mucosa oral y senos paranasales, descartando metástasis de un sitio distante en base a estudios clínicos y métodos complementarios. El tratamiento de elección consiste, siempre que sea posible, en la exéresis con criterios oncológicos, y radio y/o quimioterapia adicional. Se requiere además, cirugía reconstructiva con injerto y/o prótesis con fines estéticos y funcionales. Presentamos el caso de un varón de 72 años, que consultó por molestias en maxilar inferior tres meses después de la extracción de un molar. Se efectuó biopsia por curetaje y luego se resecó el maxilar inferior con vaciamiento ganglionar. El estudio histopatológico mostró un carcinoma escamoso pobremente diferenciado, infiltrante en hueso maxilar, con hallazgos morfológicos que lo vinculaban a quiste odontogénico residual, y metástasis en 15 de 48 ganglios aislados. Se realizó radioterapia postquirúrgica, falleciendo a los 30 meses del diagnóstico por deterioro progresivo.

Tejido óseo y apósito biológico esterilizados con gas óxido de etileno Tesis presentada en opción al grado científico Doctor en Ciencias Médicas

OpenAIRE

Jacas Torné, Manuel

2014-01-01

Introducción: En Cuba tradicionalmente se ha empleado las radiaciones Gamma para esterilizar el tejido óseo y la piel porcina. Con el propósito de buscar una alternativa a su empleo se estudió el gas óxido de etileno (OtE), nunca antes empleado en Cuba con esos fines. Objetivo general: Evaluar la efectividad del gas óxido de etileno como método esterilizante del tejido óseo esponjoso y la piel porcina. Metodología de la investigación: Se realizó un estudio experimental In Vitro d...

Entrenamiento con vibraciones mecánicas y salud: efectos sobre los sistemas óseo, endocrino y cardiovascular

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Marzo Edir Da Silva

2006-03-01

Full Text Available El entrenamiento con vibraciones mecánicas (VT es un nuevo método que se viene usando para la mejora de la performance neuromuscular. Más recientemente su aplicación se está ampliando hacia otras áreas más directamente ligadas a la salud. El VT se presenta como un posible método eficaz en la prevención de varias dolencias. El objetivo de la presente revisión es intentar clarificar si realmente el VT es beneficioso para la salud (sistemas óseo, endocrino, cardiovascular, la composición corporal y la calidad de vida y cuáles son los mecanismos por los que se producen tales beneficios. Con respecto al sistema óseo se ha observado un aumento de la densidad mineral ósea y una consiguiente disminución de la osteoporosis. Por otra parte, tras exposiciones cortas al VT se ha observado un aumento de los niveles séricos de la testosterona y la hormona de crecimiento mientras que los de cortisol disminuyen y los de insulina se mantienen. Durante la exposición a VT aumenta el consumo de oxígeno y la actividad muscular. La exposición controlada al VT a largo plazo puede disminuir el dolor lumbar. En vista de todo lo expuesto anteriormente se puede destacar como conclusión que el VT consigue a largo plazo una mejora global de la calidad de vida.

Desarrollo de nuevos cementos óseos a base de fosfato de calcio: resumen de un estudio piloto

OpenAIRE

Driessens, Ferdinand C. M.; Bermúdez, O.; Boltong, M.G.; Planell Estany, Josep Anton

1994-01-01

Los cementos basados en fosfatos de calcio ofrecen una excelente biocompatibilidad y capacidad para promover el crecimiento óseo, por lo cual son de interés en odontología y ortopedia. El presente trabajo ha conducido hasta la fecha a al elaboración de mas de 500 nuevas formulaciones de cementos de fosfatos de calcio, para las cuales se han medido parámetros tales como tiempo de fraguado y resistencia mecánica. De entre dichas formulaciones se están optimizando las que...

Anomalous behavior of soft mode attenuation in the incommensurate phase in Cd2Nb2O7, K2SeO4 and Rb2ZnBr4

International Nuclear Information System (INIS)

Smolenskij, G.A.; Kolpakova, N.N.; Sher, E.S.; Brzhezina, B.

1986-01-01

Moderation of soft mode attenuation in the incommensurate phase in Cd 2 Nb 2 O 7 , K 2 SeO 4 and Rb 2 ZnBr 4 is observed at temperature drop and anomalous jump-like decrease of integral intensity of the soft mode under transition to the low-temperature commensurate phase. Anomalous behaviour of the soft mode is explained by wave amplitudon contribution (q=0) in Raman spectrum of the first order and composite tone (wave amplitudon (q=0) +- wave phase (q=K i )) in Raman spectrum of the second order. Relative contribution of the phase wave (q=K i ) to soft mode attenuation can be estimated supposing that wave amplitudon attenuation is G A ∼ (T i -T) -1 . ΔG f max makes up approximately 6 cm -1 in Cd 2 Nb 2 O 7 and approximately 3 cm -1 in K 2 SeO 4 and Rb 2 ZnBr 4 at temperatures above T c . In the low-temperature phase the soft mode corresponds to the wave amplitudon (q=0) in the Raman spectrum of the first order at T c - 26 K) in Cd 2 Nb 2 O 7 , T c - 13 K) in K 2 SeO 4 and T c - 163 K) in Rb 2 ZnBr 4

Emulating exhalative chemistry: synthesis and structural characterization of ilinskite, Na[Cu5O2](SeO3)2Cl3, and its K-analogue

Science.gov (United States)

Kovrugin, Vadim M.; Siidra, Oleg I.; Colmont, Marie; Mentré, Olivier; Krivovichev, Sergey V.

2015-08-01

The K- and Na-synthetic analogues of the fumarolic mineral ilinskite have been synthesized by the chemical vapor transport (CVT) reactions method. The A[Cu5O2](SeO3)2Cl3 ( A + = K+, Na+) compounds crystallize in the orthorhombic space group Pnma: a = 18.1691(6) Å, b = 6.4483(2) Å, c = 10.5684(4) Å, V = 1238.19(7) Å3, R 1 = 0.018 for 1957 unique reflections with F > 4σ F for K[Cu5O2](SeO3)2Cl3 ( KI), and a = 17.7489(18) Å, b = 6.4412(6) Å, c = 10.4880(12) Å, V = 1199.0(2) Å3, R 1 = 0.049 for 1300 unique reflections with F > 4σ F for Na[Cu5O2](SeO3)2Cl3 ( NaI). The crystal structures of KI and NaI are based upon the [O2Cu5]6+ sheets consisting of corner-sharing (OCu4)6+ tetrahedra. The Na-for-K substitution results in the significant expansion of the interlayer space and changes in local coordination of some of the Cu2+ cations. The A + cation coordination changes from fivefold (for Na+) to ninefold (for K+). The CVT reactions method provides a unique opportunity to model physicochemical conditions existing in fumarolic environments and may be used not only to model exhalative processes, but also to predict possible mineral phases that may form in fumaroles. In particular, the K analogue of ilinskite is not known in nature, whereas it may well form from volcanic gases in a K-rich local geochemical environment.

Tb3O2Cl[SeO3]2 and Tb5O4Cl3[SeO3]2: Oxide Chloride Oxoselenates(IV) of Trivalent Terbium with ''Lone-Pair'' Channel or Layer Structures

International Nuclear Information System (INIS)

Wontcheu, Joseph; Schleid, Thomas

2005-01-01

Orthorhombic Tb 3 O 2 Cl[SeO 3 ] 2 (Pnma; a = 535.16(4), b = 1530.51(9), c = 1081.72(7) pm; Z = 4) is formed by reacting a stoichiometric mixture of Tb 4 O 7 , Tb, TbCl 3 , and SeO 2 in a suitable molar ratio (12: 8: 7: 42) within seven days in an evacuated sealed silica tube at 850 C. The needle-shaped, colourless single crystals (light, water and air stable) exhibit one-dimensional strands [(Tb1) 3/3 (Tb2) 2/1 O 4/2 ] 5+ [O 2 Tb 3 ] 5+ along [100] formed by two parallel chains [OTb 4/2 ] 4+ of trans-edge connected [OTb 4 ] 10+ tetrahedra (d(O-Tb) = 220 - 231 pm) which share an extra edge per chain link. The crystal structure contains two crystallographically different Tb 3+ cations: Tb1 is coordinated as bicapped trigonal prism, while Tb2 resides in square antiprismatic coordination. The Se 4+ coordination is best described as Ψ 1 tetrahedral ([SeO 3 E] 2- ; E: non-binding electron pair). The non-binding ''lone-pair'' electrons of four [SeO 3 ] 2- groups and two Cl - anions form pseudo-hexagonal empty channels along [100] between four cationic double chains. Tb 5 O 4 Cl 3 [SeO 3 ] 2 was prepared likewise as plate-like, colourless single crystals by solid-state reaction of an admixture of Tb 4 O 7 , Tb, TbOCl, TbCl 3 , and SeO 2 (molar ratio: 9: 6: 21: 7: 28) in an evacuated sealed silica tube during seven days at 850 C. This compound crystallizes in the monoclinic system (C2/m; a = 1229.13(9), b = 546.17(4), c = 978.79(7) pm, β = 90.485(6) ; Z = 2) and contains three crystallographically different Tb 3+ cations in seven- and eightfold coordination of O 2- and Cl - anions, respectively. The crystal structure of Tb 5 O 4 Cl 3 [SeO 3 ] 2 is layered and built up of corrugated terbium-oxygen sheets [O 4 Tb 5 ] 7+ formed by edge- and vertex-shared [OTb 4 ] 10+ tetrahedra (d(O-Tb) = 226-232 pm) spreading parallel (001). The structure is strongly related to the ''lone-pair'' channel structures of Tb 2 O[SeO 3 ] 2 and Tb 3 O 2 Cl[SeO 3 ] 2 , where single ([OTb 2 ] 4

Dientes estabilizados con implantes endodónticos intraóseos como pilares de prótesis

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Soraya Emilia Almagro Urrutia

2003-08-01

Full Text Available Se muestran 2 casos clínicos de pacientes que presentaban dientes con movilidad grado III, a los cuales se les realizó la técnica del implante endodóntico intraóseo, que consiste en la colocación de un perno o implante de cromo cobalto molibdeno a través del conducto radicular hasta pleno tejido óseo, con el objetivo de prolongar su longitud radicular. Los casos se evaluaron a los 15 y 45 días posimplantación y evolucionaron satisfactoriamente, por lo que se decidió comenzar el tratamiento protésico utilizando precisamente como pilares los dientes implantados. Ambos casos fueron evaluados a los 45 días después de la rehabilitación y cada 90 días hasta la fecha. Su evolución fue satisfactoria y no presentaron ninguna patología clínica y radiográfica.2 clinical cases of patients that presented tooth with degree III mobility, in which the technique of intraosteal endodontic implant, consisting in the placement of a dowel or implant of chrome-cobalt molybdenum through the radicular duct to full bone tissue, was applied aimed at prolonging their radicular length. The cases were evaluated 15 and 45 days after the implantation. As their evolution was satisfactory it was decided to begin the prosthetic treatment by using precisely the implanted tooth as abutements. Both cases were evaluated 45 days after the rehabilitation and every 90 days up to date. Their evolution was good and there were no clinical or radiographic pathologies.

Efecto de budesonida sobre la densidad y el metabolismo óseo en niños asmáticos

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Paoli de Valeri Mariela

2000-01-01

Full Text Available OBJETIVO: Determinar el efecto de la administración de budesonida inhalado sobre la densidad, el contenido mineral y el metabolismo óseo en niños asmáticos. MATERIAL Y MÉTODOS: Estudio transversal realizado de septiembre de 1996 a julio de 1997, en el que se estudiaron 38 niños y niñas de entre 6 y 11 años de edad, seleccionados de la consulta externa de neumonología infantil del Instituto Autónomo Hospital Universitario de Los Andes, Mérida, Venezuela. Se constituyeron tres grupos: nueve niños asmáticos tratados con budesonida inhalado (300 µg/día en promedio durante más de seis meses, (grupo A, 14 niños asmáticos que no recibieron tratamiento esteroideo (grupo B y 15 niños no asmáticos (grupo C. A todos se les practicó una evaluación ósea con marcadores de formación y resorción y con una medición de la densidad (DMO y el contenido mineral óseo (CMO. Se calcularon medidas de tendencia central y de dispersión, se realizó análisis de varianza, y se utilizaron las pruebas de Fisher y Scheffé para comparación de medias. RESULTADOS: En los grupos estudiados (A, B y C los niveles séricos de calcio fueron 9.1±0.3; 9.6±0.4; 9.3±0.6 mg/ml; los de osteocalcina fueron 14.8±4.6; 13.0±2.5; 11.9±3.4 ng/dl; los de telopéptido carboxiterminal del colágeno tipo I (ICTP fueron 19.6±16.5; 14.2±15.4; 13.0±18.3 µg/l; la DMO fue de 0.67±0.06; 0.68±0.06; 0.69±0.06 g/cm², y el CMO fue de 1 158.8±217.4; 1 106.4±256.1; 1 176.5±240.5 g, respectivamente. No hubo diferencias significativas entre los grupos. CONCLUSIONES: La administración de budesonida inhalada en dosis de 100 a 400 µg/día por un periodo de seis meses no produce modificaciones en la densidad y en el metabolismo óseo en niños asmáticos.

Quiste óseo aneurismático Aneurysmal bone cyst

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Ferdinando de Conto

2012-06-01

Full Text Available El quiste óseo aneurismático (QOA es una lesión benigna rara en huesos maxilares, su mayor frecuencia es en huesos largos del esqueleto y columna vertebral. Algunos autores especulan que el origen sea por trauma, mala formación o un neoplasma. El aspecto radiográfico puede mostrar desde una imagen difusa hasta una imagen bien definida, muy semejante a las otras lesiones de los maxilares volviendo el diagnóstico diferencial amplio. Con la destrucción del córtex óseo puede todavía formar una imagen reaccional del periostio en forma de rayos de sol, característico de una lesión maligna. En este estudio, se presenta caso de paciente femenino, 17 años de edad, que buscó el Servicio de Cirugía y Traumatología Buco maxilofacial del Hospital São Vicente de Paulo-RS, que presentó dolor y aumento de volumen en la mandíbula. Informó que hace cerca de un año empezó a sentir malestar en la región junto al ángulo mandibular derecho, lo cual fue progresivamente aumentando de volumen. El aspecto radiográfico acordaba una lesión maligna. Después de la confirmación histopatológica de QOA, el tratamiento seleccionado para el caso fue quirúrgico conservador, con legrado de la cavidad ósea, y fue mantenido en control posoperatorio de rutina con 6 y 18 meses. En las radiografías panorámicas realizadas se verifica la neoformación ósea y cura del caso.The aneurysmal bone cyst (ABC is a benign and rare lesion in maxillary bones, is more frequent in largo bones of skeletal and spinal column. Some authors speculate about that its origin be traumatic, malformation of neoplasm. The radiographic appearance may to show from a diffuse image up to a well defined image very similar to the other maxillary lesions turning wide the differential diagnosis. With destruction of the bon cortex it is possible to create a reaction image of periosteum in sunbeams characteristic of malignant lesion. This is the case of a female patient aged 17 seeking

Quiste óseo aneurismático mandibular de tipo sólido Mandibular solid aneurysmal bone cyst

OpenAIRE

Marta Saldaña Rodríguez; Maria Fe García Reija; Belén García-Montesinos Perea; Marta Mayorga Fernández; Ramón Carlos Saiz Bustillo

2013-01-01

El quiste óseo aneurismático sólido es una lesión ósea benigna muy infrecuente de la que no existe consenso en relación a su origen etiopatogénico. Presenta características clínicas, radiológicas e histológicas inespecíficas, por lo que los estudios ultraestructurales son fundamentales para su diagnóstico y clasificación. El diagnóstico diferencial es extenso e incluye múltiples lesiones óseas como el granuloma reparativo de células gigantes e incluso tumores malignos como el osteosarcoma. El...

Molecular and epidemiological characterization of staphylococcal foodborne outbreak of Staphylococcus aureus harboring seg, sei, sem, sen, seo, and selu genes without production of classical enterotoxins.

Science.gov (United States)

Umeda, Kaoru; Nakamura, Hiromi; Yamamoto, Kaori; Nishina, Nobuko; Yasufuku, Kiyoshi; Hirai, Yuki; Hirayama, Teruo; Goto, Kaoru; Hase, Atsushi; Ogasawara, Jun

2017-09-01

Staphylococcal food poisoning is the result of consumption of food contaminated with staphylococcal enterotoxins (SEs) produced by Staphylococcus aureus. To date, 23 SEs and SE-like enterotoxins (SEls) have been described in the literature. They are divided into classical SEs (SEA-SEE) and new SE/SEls (SEG-SElX). Some have proved to be foodborne-inducible, but others remain unidentified. In May 2016, at an elderly group home in Osaka city, Japan, an outbreak from foodborne pathogens occurred among lunch party participants. Within 2h 30min to 4h 40min, 15 of 53 participants presented gastrointestinal symptoms of vomiting, diarrhea, and nausea. A subsequent laboratory investigation detected S. aureus from most stool samples from patients, several left-over food items, a kitchen swab, and hand swabs from two food handlers. Classical SEs was not detected from S. aureus isolates or left-over food items. From examination for the presence of SE/SEl genes of 20 kinds by PCR, seg, sei, sem, sen, seo, and selu genes were detected in almost all isolates. These isolates exhibited identical or closely related types by coagulase type (type VII), Sma I digested pulsed-field gel electrophoresis analysis and multi-locus sequence typing (MLST-CC45 lineage). These results suggest that the foodborne outbreak was caused by S. aureus harboring seg, sei, sem, sen, seo, and selu genes without production of classical SEs. Additionally, some S. aureus isolates from human nasal swabs and healthy human feces harboring seg, sei, sem, sen, seo, and selu genes without production of classical SEs were classified into CC45 lineage using MLST. These findings suggest new SE/SEls as a potential cause of foodborne outbreaks. Copyright © 2017. Published by Elsevier B.V.

Inmunología de los peces óseos. Revisión

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Miguel Rubio-Godoy

2010-01-01

Full Text Available Los peces óseos poseen sistemas inmunitarios capaces de llevar a cabo respuestas humorales y celulares tanto innatas como específicas; esencialmente, los sistemas defensivos de los peces teleósteos tienen los mismos componentes que los de los mamíferos, a quienes anteceden evolutivamente. En esta revisión se describen los componentes de los sistemas inmunitarios de los teleósteos, enfatizando las particularidades presentes en los peces mas no en los mamíferos, cuyos sistemas defensivos se conocen en mayor detalle. El estudio de la inmunología de los peces es relevante para fines tanto básicos como aplicados. Por la vertiente básica, es importante para comprender el origen y la evolución del sistema inmunitario de los vertebrados superiores. Por la vertiente aplicada, a pesar de que hay algunas vacunas comerciales para proteger peces de interés comercial contra algunas bacterias y virus, ampliar el conocimiento del sistema inmunitario de estos organismos permitiría incrementar la productividad e inocuidad de la acuacultura, mediante el desarrollo de nuevos métodos de estimulación inmunitaria y vacunación eficaces.

Quiste óseo aneurismático de los maxilares. Caso clínico. Instituto Nacional de Enfermedades Neoplásicas

OpenAIRE

Román Pilco, Sandra; Sánchez Lihón, Juvenal

2004-01-01

El quiste óseo aneurismático (QOA) de los maxilares es una lesión benigna intraósea compuesta por espacios cavernosos llenos de sangre, de tamaños variables, sin recubrimiento endotelial, asociados con tejido conectivo fibroso conteniendo células gigantes multinucleadas y tejido osteoide; clínicamente el lado afecto de los maxilares aumenta de tamaño y muestra una discreta inflamación. Puede haber ligero dolor a la palpación y donde pueden faltar o desplazarse ...

Ettekujutusi islami paradiisist ja paradiisineitsitest ning nende seos džihaadi ja märterlusega / Elo Süld

Index Scriptorium Estoniae

Süld, Elo, 1979-

2012-01-01

Ajaloolis-kriitiline pilt usklike ja märtrite tasuna oodatavast paradiisist, paradiisineitsite tõlgendamisest. Paradiisimotiivide aluseks olevatest religioossetest ettekujutustest (Koraan, judaistlik, kristlik ja zoroastrismi kontekst, sufismi allegooria, araabia luule, kreeka antiikmütoloogia)

Técnicas empleadas en síntesis de nanocompuestos en ingeniería de tejido óseo

Directory of Open Access Journals (Sweden)

Alis Yovana Pataquiva Mateus

2014-12-01

Full Text Available Los avances en la ingeniería de tejido óseo exigen nuevos desarrollos en materiales inteligentes que permitan reemplazar hueso o bien regenerarlo. Para cumplir con esta tarea, la ingeniería biomédica, específicamente la ingeniería de los biomateriales, se ha basado en la nanotecnología ya que los tejidos son nanocompuestos naturales de perfecta arquitectura. El hueso, como nanocompuesto de colágeno y cerámico, es foco de bioinspiración a la hora de diseñar nuevos biomateriales para su tratamiento. Sin embargo, la complejidad de este tejido es enorme debido a las funciones críticas que desempeña tales como: movimiento y soporte de otros órganos vitales, almacenamiento de minerales, homeostasis, regulación del pH de la sangre y depósito de múltiples células tales como las mesenquimales, osteoblastos, condrocitos y fibroblastos, entre otras. De ahí, que es un reto para la ingeniería el diseño y la construcción de materiales con propiedades tales como biomimética, bioafinidad por las células óseas, así como cumplir con las propiedades mecánicas necesarias tales como resistencia a la compresión y a la tracción, entre otras condiciones mínimas. En esta revisión se hace alusión a algunas de las más novedosas técnicas en nanotecnología tales como nanopatrón, nanorecubrimiento y nanofibras, entre otras, empleadas en la construcción de diversos materiales nanoestructurados en el área de ingeniería de tejido óseo.

[Pb2F2](SeO4): a heavier analogue of grandreefite, the first layered fluoride selenate

Science.gov (United States)

Charkin, Dmitri O.; Plokhikh, Igor V.; Zadoya, Anastasiya I.; Kazakov, Sergey M.; Zaloga, Alexander N.; Kozin, Michael S.; Depmeier, Wulf; Siidra, Oleg I.

2018-01-01

Co-precipitation of PbF2 and PbSeO4 in weakly acidic media results in the formation of [Pb2F2](SeO4), the selenate analogue of the naturally occurring mineral grandreefite, [Pb2F2](SO4). The new compound is monoclinic, C2/ c, a = 14.0784(2) Å, b = 4.6267(1) Å, c = 8.8628(1) Å, β = 108.98(1)°, V = 545.93(1) Å3. Its structure has been refined from powder data to R B = 1.55%. From thermal studies, it is established that the compound is stable in air up to about 300 °C, after which it gradually converts into a single phase with composition [Pb2O](SeO4), space group C2/ m, and lattice parameters a = 14.0332(1) Å, b = 5.7532(1) Å, c = 7.2113(1) Å, β = 115.07(1)°, V = 527.37(1) Å3. It is the selenate analogue of lanarkite, [Pb2O](SO4), and phoenicochroite, [Pb2O](CrO4), and its crystal structure was refined to R B = 1.21%. The formation of a single decomposition product upon heating in air suggests that this happens by a thermal hydrolysis mechanism, i.e., Pb2F2SeO4 + H2O (vapor) → Pb2OSeO4 + 2HF↑. This relatively low-temperature process involves complete rearrangement of the crystal structure—from a 2D architecture featuring slabs [Pb2F2]2+ formed by fluorine-centered tetrahedra into a structure characterized by 1D motifs based on [OPb2]2+ chains of oxocentered tetrahedra. The comparative crystal chemistry of the obtained anion-centered structural architectures is discussed.

Metabolismo mineral óseo durante la gestación y efectos sobre la masa ósea de la madre

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Luis Vidal

2008-09-01

Full Text Available La gestación y lactancia son periodos de alta demanda de calcio, para el crecimiento fetal y para la producción de leche materna. Durante la gestación, la madre transfiere al feto 25 a 30 g de calcio y durante la lactancia se secretan 200 a 240 mg de calcio diario en la leche materna. Durante la gestación, los mecanismos adaptativos más importantes son el incremento en la absorción de calcio y el incremento del recambio óseo materno; durante la lactancia, hay tendencia a conservar más calcio a nivel renal, pero la desmineralización temporal del esqueleto materno parece ser el mecanismo más importante. Los estudios que emplean absorciometría dual de rayos X (DXA son escasos, por el riesgo de radiación materna y fetal; pero, con otras técnicas, como el ultrasonido cuantitativo, se ha descrito una pérdida de masa ósea durante la gestación predominantemente dependiente del hueso trabecular. Mediante marcadores bioquímicos del remodelamiento óseo se ha demostrado que los suplementos de calcio reducen la tasa de remodelamiento durante el embarazo y parecen tener efecto benéfico sobre la pérdida ósea materna. Estudios longitudinales que emplean ultrasonido cuantitativo también han encontrado una disminución de la pérdida ósea, entre las mujeres que recibieron aporte o suplemento adecuado de calcio durante la gestación.

Metabolismo mineral óseo durante la gestación y efectos sobre la masa ósea de la madre

OpenAIRE

Luis Vidal; Maritza Vidal; Santiago Cabrera; Eduardo Ortega; Vicente Santiváñez; Jorge Polo; Jorge Barnaby; Rolando Vargas; Angélica del Castillo

2008-01-01

La gestación y lactancia son periodos de alta demanda de calcio, para el crecimiento fetal y para la producción de leche materna. Durante la gestación, la madre transfiere al feto 25 a 30 g de calcio y durante la lactancia se secretan 200 a 240 mg de calcio diario en la leche materna. Durante la gestación, los mecanismos adaptativos más importantes son el incremento en la absorción de calcio y el incremento del recambio óseo materno; durante la lactancia, hay tendencia a conservar más calcio ...

The N-end rule pathway counteracts cell death by destroying proapoptotic protein fragments.

Science.gov (United States)

Piatkov, Konstantin I; Brower, Christopher S; Varshavsky, Alexander

2012-07-03

In the course of apoptosis, activated caspases cleave ∼500 to ∼1,000 different proteins in a mammalian cell. The dynamics of apoptosis involve a number of previously identified, caspase-generated proapoptotic protein fragments, defined as those that increase the probability of apoptosis. In contrast to activated caspases, which can be counteracted by inhibitor of apoptosis proteins, there is little understanding of antiapoptotic responses to proapoptotic protein fragments. One possibility is the regulation of proapoptotic fragments through their selective degradation. The previously identified proapoptotic fragments Cys-RIPK1, Cys-TRAF1, Asp-BRCA1, Leu-LIMK1, Tyr-NEDD9, Arg-BID, Asp-BCL(XL), Arg-BIM(EL), Asp-EPHA4, and Tyr-MET bear destabilizing N-terminal residues. Tellingly, the destabilizing nature (but not necessarily the actual identity) of N-terminal residues of proapoptotic fragments was invariably conserved in evolution. Here, we show that these proapoptotic fragments are short-lived substrates of the Arg/N-end rule pathway. Metabolic stabilization of at least one such fragment, Cys-RIPK1, greatly augmented the activation of the apoptosis-inducing effector caspase-3. In agreement with this understanding, even a partial ablation of the Arg/N-end rule pathway in two specific N-end rule mutants is shown to sensitize cells to apoptosis. We also found that caspases can inactivate components of the Arg/N-end rule pathway, suggesting a mutual suppression between this pathway and proapoptotic signaling. Together, these results identify a mechanistically specific and functionally broad antiapoptotic role of the Arg/N-end rule pathway. In conjunction with other apoptosis-suppressing circuits, the Arg/N-end rule pathway contributes to thresholds that prevent a transient or otherwise weak proapoptotic signal from reaching the point of commitment to apoptosis.

Acción fisiopatológica integrada de las hormonas sobre el tejido óseo: Physiopathological integrated action of hormones on the bone tissue

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Julio César Sánchez Cruz

2006-08-01

Full Text Available La estatura definitiva que puede lograr un individuo, así como la adecuada salud e integración de su tejido óseo, dependen en gran medida de su constante interacción con las hormonas, desde la etapa embrionaria hasta los últimos momentos de la vida. Teniendo en cuenta que en los libros de texto la relación entre las hormonas con el hueso solo se describe de forma separada y sin integralidad entre lo fisiológico y lo patológico, se realiza una amplia revisión bibliográfica mediante la unificación de criterios y puntos de vista de diferentes autores, con el objetivo de lograr una comprensión más exacta de las funciones que realizan las hormonas sobre el tejido óseo y tener una visión más integral y razonada de la etiopatogenia de afecciones tales como la osteoporosis, las bajas y altas tallas (de causa endocrina y la craneosinostosis, entre otras. Se obtuvo como resultado un documento que explica, de forma más amena e integral, las acciones fisiopatológicas de las hormonas sobre el tejido óseo de un organismo vivo.The definitive height an individual can reach, as well as the adequate health and integration of his bone tissue depends in a great extent on his constant interaction with hormones from the embrionary stage to the last moments of his life. Taking into consideration that the relation between the hormones and the bone is only described in the textbooks in a separate way and with no integrality between the physiological and the pathological aspect, a wide bibliographic review is made by unifying criteria and points of view of different authors aimed at attaining a more accurate understanding of the functions of the hormones on the bone tissue, and at having a more comprehensive and reasoned vision of the etiopathogenesis of affections such as osteoporosis, short and tall stature (of endocrine cause and craniosinostosis, among others. As a result, it was obtained a document that explained in a clearer and more integral way

Deuterium resonance of KD3(SeO3)2 single crystals above and below phase transition

International Nuclear Information System (INIS)

Grande, S.; Mecke, H.D.; Shuvalov, L.A.

1978-01-01

Deuterium resonance investigations of KD 3 (SeO 3 ) 2 single crystals are performed both in the paraelectric and ferroelastic phase. The electric quadrupole coupling constants lie between 120 and 180 kHz. The directions of the qsub(zz)-components of the EFG-tensors are in good agreement with the hydrogen bond directions determined by X-ray structure analysis and neutron scattering. There are two types of hydrogen bonds with different behaviour at phase transition. The O(2)...H...O(2) bond shows an order-disorder process in contrast to the O(3)-H...O(1) bond being present below Tsub(c) in two bond lengths. The first bond turns out of the ac-plane by the monoclinic angle. The temperature dependence of the spectra is examined at a defined orientation between room temperature and -40 0 C. (author)

Proton conducting system (ImH2)2SeO4·2H2O investigated with vibrational spectroscopy

Science.gov (United States)

Zięba, Sylwia; Mizera, Adam; Pogorzelec-Glaser, Katarzyna; Łapiński, Andrzej

2017-06-01

Imidazolium selenate dihydrate (ImH2)2SeO4·2H2O crystals have been investigated using Raman and IR spectroscopy. Experimental data were supported by the quantum-chemical calculations (DFT), Hirshfield surfaces and fingerprint plots analysis, and Bader theory calculations. The imidazolium selenate dihydrate crystal exhibits high proton conductivity of the order of 10- 1 S/m at T = 333 K. The spectra of this compound are dominated by bands related to the lattice modes, the internal vibrations of the protonated imidazole cation, selenate anion, water molecules, and hydrogen bonds network. For the imidazolium selenate dihydrate crystal, the formal classification of the fundamental modes has been carried out.

Pasado, presente y futuro cercano de los materiales para uso en implantes óseos biodegradables

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Clara Eugenia Plazas Bonilla

2011-05-01

Full Text Available El manejo de fracturas y defectos óseos procura la regeneración del tejido óseo respetando su anatomía y buscando recuperar su funcionalidad. El logro de este objetivo se inició en el siglo XVII con el uso de injertos de origen animal o humano, y ha llegado en la actualidad al uso de implantes, dispositivos elaborados en materiales naturales o sintéticos que comportan una gran variedad de propiedades químicas, físicas y biológicas. Las investigaciones en el área continúan encaminándose a la solución de los inconvenientes que presentan los injertos: las reacciones inmunológicas, los riesgos de contaminación, la ausencia de donantes, la necesidad de varias intervenciones quirúrgicas y el riesgo de transmisión de enfermedades. Es por ello que, tanto la investigación básica como aplicada, se han encaminado de igual forma en el ámbito de la biología del desarrollo e investigación con células madre, como en el campo del exploración de nuevos biomateriales. Esta tendencia es evidente al observar los numerosos estudios en relación con el uso de materiales metálicos, poliméricos, cerámicos y, en la actualidad, de los materiales compuestos o híbridos con uso potencial en implantes ortopédicos. Muchos de estos materiales, al cumplir con condiciones de biocompatibilidad y toxicidad, pueden ser usados en el diseño de materiales biodegradables y son el elemento de partida para el surgimiento de numerosas líneas de investigación en biomateriales. En este documento, a partir de la identificación de los períodos de avance en el estudio de biomateriales, se reseñan las bondades y restricciones de estos diferentes grupos que han sido investigados para ser usados en regeneración ósea y se plantean las directrices que a mediano plazo se han de seguir en el campo de los materiales biodegradables, temática en la que hay un extenso camino por recorrer en el ámbito de la ciencia y tecnología de los materiales.

Efectos del ibandronato sobre el metabolismo óseo y el perfil de riesgo cardiovascular en mujeres con osteoporosis postmenopáusica tratadas previamente con raloxifeno

OpenAIRE

Ferrer Piquer, Marta

2015-01-01

“Efectos del ibandronato sobre el metabolismo óseo y el perfil de riesgo cardiovascular en mujeres con osteoporosis postmenopáusica tratadas previamente con raloxifeno” La osteoporosis postmenopáusica es un problema sanitario mundial, dado que las fracturas por fragilidad suponen un aumento importante de morbimortalidad así como del coste económico. En los últimos años se han desarrollado nuevas terapias para el tratamiento de la osteoporosis, siendo por el momento los SERMs y los bi...

Estudio de los restos óseos de las necrópolis tardorromanas, calle Era y La Molineta, del puerto de Mazarrón, Murcia

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Zapata Crespo, Josefina

2004-12-01

Full Text Available The bone remains whose study is presented here come from two Late Roman burial grounds, Calle Era and La Molineta, located in Puerto de Mazarrón and dated to the 4th-6th centuries AD. The sample size is of 218 individuals, 59 from Calle Era (40 adults and 19 juveniles and 159 from La Molineta (93 adults and 66 juveniles. The state of preservation of these remains is rather heterogeneous. In both populations, a majority of individuals had an age at death between 17 and 35. Analysis of oral pathologies suggests a mixed diet, including marine resources and agricultural products. At Calle Era, all cases of caries, fistula (abscess cavity, ante mortem tooth loss and major dental wear come from multiple burial 24, which contained 31 individuals. The diet from this group seems to be distinct, with a higher component of cariogenic products. In the bone remains of both populations no indications (trauma or osteoarticular alterations caused by excessive effort of work activities (mining, fishing or agriculture so intense as to cause skeletal modification. The trace element analysis of the bone remains indicates that, at both sites, bone underwent diagenetic exchange with the burial environment, precluding the utilization of the evidence for dietary reconstruction. The action of inhibitors and the degradation of DNA give a low level of reliability to the results obtained with the amelogenin test used for the determination of sex.Los restos óseos del presente estudio provienen de dos necrópolis tardorromanas. Calle Era y La Molineta, ubicadas en el Puerto de Mazarrón y datadas entre los ss. IV-VI d.C. El tamaño muestral utilizado en el estudio es de 218 individuos, 59 de Calle Era (40 adultos y 19 inmaduros y 159 de La Molineta (93 adultos y 66 inmaduros. El estado de conservación que se observa en los restos óseos de las dos necrópolis es bastante heterogéneo. El máximo de individuos adultos, en ambas poblaciones, se halla entre los intervalos de

Rescate arqueológico de restos óseos humanos en la quebrada del Río Cajas (Dpto. Yavi, Jujuy

Directory of Open Access Journals (Sweden)

Nieva, Luis F.

2001-01-01

Full Text Available Geológicamente la cuenca del río Yavi atraviesa por un período erosivo, que afecta especialmente las márgenes de los ríos provocando la formación de cárcavas y barrancos profundos. El área donde el río Cajas vuelca sus aguas al río Yavi es fértil en restos arqueológicos, el sitio más conocido es el Antigal de Yavi Chico, pero también se encuentran otros sitios menores, unos con arte rupestre y otros con hallazgos de artefactos líticos, y otros con restos cerámicos y óseos. Este sector de la cuenca está afectado por los procesos erosivos, es así que luego de los frecuentes derrumbes es posible ver los restos culturales en las escarpas expuestas. Se localizaron tres enterratorios: en urna, en el sitio denominado La Palca; otro en el antigal de Yavi Chico, y un tercero en Portillo. El análisis desde la antropología biológica, de restos humanos provenientes de sitios arqueológicos, aporta información importante acerca de las poblaciones que los habitaron, el estado sanitario en general, la alimentación, patologías, edad y sexo. De los análisis surge: una elevada incidencia de desgaste dental que afecta por igual a ambos sexos provocado probablemente por el tipo de alimentación, también se observan perdidas de piezas e indicios de periodontitis y en uno de los conjuntos óseos se advierte señas dejadas por enfermedades óseas (osteofitosis, deformación del esternón. Se espera poder contar en el futuro con una muestra más abundante para poder delinear de esta forma un panorama acerca de la salud de los pueblos prehispánicos de este sector de nuestra Puna.

Diseño y aplicación de hidrogeles basados en polisacáridos para ingeniería de tejido óseo

OpenAIRE

Medina, Lara; Cortizo, María Susana; Cortizo, Ana María

2014-01-01

El tejido óseo, a diferencia del cartílago, tiene la capacidad de reparar constantemente los microdaños que se producen en forma cotidiana; sin embargo, frente a fracturas de gran tamaño o pérdida ósea, puede ser necesaria la estabilización mecánica de la lesión, o bien el empleo de sistemas de “scaffolds” (andamiajes) que permitan el desarrollo osteoblástico para reparar la lesión. La estimulación de la producción ósea requerida para tratar la pérdida de hueso emplea estrategias basadas en t...

Influencia de la incorporación de un co-monómero alcalino e hidroxiapatita en las propiedades de cementos óseos acrílicos

Directory of Open Access Journals (Sweden)

Karen Lozano

2013-01-01

Full Text Available Se formularon cementos óseos acrílicos utilizando una relación sólido / líquido de 2. El componente líquido se basó en metacrilato de metilo (MMA, como monómero y dimetil-p-toluidina (2.5% como acelerador; a su vez, el componente sólido consistió en perlas de polimetacrilato de metilo (PMMA como carga, sulfato de bario como agente radiopaco y peróxido de benzoilo (2% como iniciador. Finalmente, una hidroxiapatita como carga bioactiva y un metacrilato de dimetil amino etilo (DMAEM como co-monómero alcalino, fueron incorporados en diferentes porcentajes (0-20% p/p, para el primero y 0-10% p/p, para el segundo. Como era de esperarse, las muestras elaboradas con las formulaciones de cementos óseos acrílicos sin modificar, presentaron calores de reacción elevados (>80ºC y una resistencia a la compresión (124.0 MPa por encima de lo especificado en la norma ISO 5833. Con la incorporación de la hidroxiapatita y el co-monómero alcalino, se presentaron bajas temperaturas de polimerización, bajos módulos y resistencias mecánicas, así como la fijación de una capa similar a la apatita biológica en la superficie del material después de su inmersión por 30 días en un fluido biológico simulado.

Ettevõtte ühiskondlik vastutus, vastutustundlikud investeeringud ja nende seos finantstulemustega Eesti institutsionaalsete investorite pilgu läbi / Uku Lember

Index Scriptorium Estoniae

Lember, Uku

2006-01-01

Vastutustundliku ettevõtluse teoreetilisest taustast, 11.- 22. aprillini 2005. a. läbiviidud küsitlusuuringust institutsionaalsete investorite hoiakutest, arvamustest, hinnangutest Eesti ettevõtete ühiskondliku vastutuse kohta

Synthesis and crystal structure of the solid solution Co3(SeO3)3-x(PO3OH)x(H2O) involving crystallographic split positions of Se4+ and P5+.

Science.gov (United States)

Zimmermann, Iwan; Johnsson, Mats

2013-10-21

Three new cobalt selenite hydroxo-phosphates laying in the solid solution Co3(SeO3)3-x(PO3OH)x(H2O), with x = 0.8, x = 1.0, and x = 1.2 are reported. Single crystals were obtained by hydrothermal synthesis and the crystal structure was determined by single crystal X-ray diffraction. The structure can be described as a 3D framework having selenite and hydroxo-phosphate groups protruding into channels in the crystal structure. Se(4+) and P(5+) share a split position in the structure so that either SeO3 groups having a stereochemically active lone pair or tetrahedrally coordinated PO3OH groups are present. The OH-group is thus only present when the split position is occupied by P(5+). The crystal water is coordinated to a cobalt atom and TG and IR measurements show that the water and hydroxyl groups leave the structure at unusually high temperatures (>450 °C). Magnetic susceptibility measurements show antiferromagnetic coupling below 16 K and a magnetic moment of 4.02(3) μB per Co atom was observed.

10 January 2011 - Former Minister of Science and Technology Honorary Member of the National Academy of Engineering of Korea J.-U.SEO in the CMS underground experimental area with Deputy Spokesperson J. Incandela, Former Adviser D. Blechschmidt and Adviser R. Voss.

CERN Multimedia

Maximilien brice

2011-01-01

10 January 2011 - Former Minister of Science and Technology Honorary Member of the National Academy of Engineering of Korea J.-U.SEO in the CMS underground experimental area with Deputy Spokesperson J. Incandela, Former Adviser D. Blechschmidt and Adviser R. Voss.

Propagación de grietas por fatiga de cementos óseos acrílicos. Influencia de los agentes radiopacos

Directory of Open Access Journals (Sweden)

Ginebra, M. P.

2001-04-01

Full Text Available In this work the 2,5-diiodo-8-quinolyl methacrylate (IHQM, is proposed as a new radiopaque agent. The addition of the iodine containing methacrylate provided a statistically significant increase in the tensile strength, fracture toughness and ductility, with respect to the barium sulphate containing cement. This effect was attributed to the fact that the use of a radiopaque monomer eliminated the porosity associated to the barium sulphate particles. However, since fatigue resistance is one of the main properties required to ensure a good long-term performance of permanent prostheses, as is the case of acrylic bone cements, it is important to compare the fatigue properties of this new bone cement formulation with the radiolucent and the BaS0₄ containing bone cements. The results show that the absence of inorganic particles with no matrix adhesion plays a negative role when the fatigue crack propagation is considered.

En este trabajo se propone el monómero 2,5-diyodo-8-quinolina metacrilato (IHQM como nuevo agente radiopaco. La adición del agente yodado proporciona un aumento en la resistencia a la tracción, en la tenacidad a la fractura y en la ductilidad con respecto al cemento óseo que contiene sulfato de bario como agente radiopaco. Este efecto se atribuye al hecho de que la utilización del monómero radiopaco elimina la porosidad asociada a las partículas de sulfato de bario que presentan una nula adhesión con la matriz polimérica. Sin embargo, debido a que la resistencia a la propagación de grietas por fatiga es una de las principales propiedades requeridas para el buen comportamiento del cemento en servicio a largo plazo, es importante comparar las propiedades de fatiga de esta nueva formulación de cemento óseo con el cemento que contiene BaS0₄. Los resultados muestran que la ausencia de partículas inorgánicas en el cemento juega un papel negativo en la propagación de grietas por fatiga.

Bone and mineral metabolism in primiparous women and its relationship with breastfeeding: a longitudinal study Metabolismo óseo y mineral en mujeres primíparas y su relación con la lactancia: un estudio longitudinal

Directory of Open Access Journals (Sweden)

Mariela Glerean

2010-06-01

Full Text Available The aim of this study was to evaluate the changes in bone metabolism in breastfeeding women (BF. We selected 30 primiparous women and compared them to 31 nulliparous women. We assessed bone mineral density (BMD in the lumbar spine (LS, femoral neck (FN and trochanter (TROC, biochemical parameters of bone turnover and hormone and cytokine levels at the puerperium, 6 months and 12 months after delivery. A trend to lower BMD of LS was seen at initial evaluation in BF. BMD in LS, FN, and TROC were increased 12 months after delivery. Baseline body mass index was higher in puerperal women (p = 0.02 and correlated with an increased FN and TROC BMD one year post delivery (p = 0.001 and p = 0.003. An increase in bone remodeling markers, and lower urinary calcium was observed; after 12 months these values normalized. Prolactin, parathormone related peptide (PTHrP and IL-6 were enhanced during the first six months of breastfeeding. We conclude that calcium for breastfeeding was obtained by transient mobilization of calcium deposits from the trabecular bone, and urinary calcium sparing induced by calciotrophic hormones and cytokines. Body weigth is an important factor in proximal femur BMD.El objetivo de este estudio fue evaluar los cambios que suceden en el metabolismo óseo de mujeres que amamantan. Se seleccionaron 30 mujeres primíparas y se compararon con 30 mujeres nulíparas como grupo control. Se evaluó la densidad mineral ósea (DMO del raquis lumbar (RL, cuello femoral (CF y trocánter (TROC, parámetros del remodelado óseo, hormonas y citoquinas. Estos parámetros se midieron en el puerperio inmediato, y a los 6 y 12 meses post-parto. La DMO del RL de la mujeres primíparas evidenciaron una tendencia a menores valores al comienzo de la lactancia comparadas con las mujeres controles, y se observó un incremento significativo de la DMO a los 12 meses, alcanzando valores similares al grupo control. La DMO en CF y del TROC aument

Masa ósea y su relación con la actividad física, condición física y marcadores del metabolismo óseo en adolescentes

OpenAIRE

Gracia Marco, Luis A.; Ortega Porcel, Francisco B.; Moreno Aznar, Luis Alberto; Vicente Rodríguez, Germán

2012-01-01

La adolescencia representa una etapa crucial para el desarrollo de la masa ósea. En una sociedad con índices elevados de fracturas debido a la presencia de osteoporosis, es de gran importancia analizar los factores que permitan un óptimo desarrollo óseo, especialmente durante la pubertad, con el fin de prevenir dicha enfermedad en el futuro. A nivel general, los objetivos de la presente Tesis Doctoral son: 1) describir la situación actual de la práctica deportiva extra-curricular y su asociac...

Efecto de los suplementos de calcio, vitamina D e isoflavonas sobre marcadores del remodelado óseo en mujeres postmenopaúsicas recientes: papel de polimorfismos del receptor de vitamina D

OpenAIRE

Pérez Alonso, María

2016-01-01

La osteoporosis es una enfermedad de elevada prevalencia, morbimortalidad y alto coste económica que se hace clínicamente evidente cuando aparecen las fracturas características. La vitamina D juega un importante papel en el mantenimiento de la integridad del esqueleto y de la resistencia ósea, principal determinante de la aparición de fracturas. Pot otra parte la incidencia de la hipovitaminosis D es muy frecuente con hiperparatiroidismo secundario asociado y aumento del remodelado óseo Ob...

Penerapan Teknik Seo (Search Engine Optimization pada Website dalam Strategi Pemasaran melalui Internet

Directory of Open Access Journals (Sweden)

Rony Baskoro Lukito

2014-12-01

Full Text Available The purpose of this research is how to optimize a web design that can increase the number of visitors. The number of Internet users in the world continues to grow in line with advances in information technology. Products and services marketing media do not just use the printed and electronic media. Moreover, the cost of using the Internet as a medium of marketing is relatively inexpensive when compared to the use of television as a marketing medium. The penetration of the internet as a marketing medium lasted for 24 hours in different parts of the world. But to make an internet site into a site that is visited by many internet users, the site is not only good from the outside view only. Web sites that serve as a medium for marketing must be built with the correct rules, so that the Web site be optimal marketing media. One of the good rules in building the internet site as a marketing medium is how the content of such web sites indexed well in search engines like google. Search engine optimization in the index will be focused on the search engine Google for 83% of internet users across the world using Google as a search engine. Search engine optimization commonly known as SEO (Search Engine Optimization is an important rule that the internet site is easier to find a user with the desired keywords.

The Voltammetric Analysis of Selenium Electrodeposition from H2SeO3 Solution on Gold Electrode

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Kowalik R.

2015-04-01

Full Text Available The different voltammetry techniques were applied to understand the process of selenium deposition from sulfate solution on gold polycrystalline electrode. By applying the cycling voltammetry with different scan limits as well as the chronoamper-ometry combined with the cathodic and anodic linear stripping voltammetry, the different stages of the deposition of selenium were revealed. It was found that the process of reduction of selenous acid on gold surface exhibits a multistage character. The cyclic voltammetry results showed four cathodic peaks which are related to the surface limited phenomena and which coincide with the bulk deposition process. The fifth cathodic peak is related to the reduction of bulk deposited Se0 to Se-2 ions. Furthermore, the connection of anodic peaks with cathodic ones confirmed the surface limited process of selenium deposition, bulk deposition and reduction to Se-2. Additionally, the cathodic linear stripping voltammetry confirms the process of H2SeO3 adsorption on gold surface. The experiments confirmed that classical voltammetry technique proved to be a very powerful tool for analyzing the electrochemical processes related with interfacial phenomena and electrodeposition.

Extensión del límite austral de distribución de tres especies de peces óseos tropicales en la costa de la Provincia de Buenos Aires, Argentina

OpenAIRE

Milessi, Andres Conrado; Colonello, Jorge H.; Cortés, Federico; Lasta, Carlos Ángel; Waessle, Juan A.; Allega, Lucrecia

2012-01-01

Se presentan tres nuevos registros de especies de peces óseos cuya distribución corresponde a aguas tropicales, capturados por buques pesqueros en la costa de la Provincia de Buenos Aires, Argentina (CPBA, 36º-38ºS). Los ejemplares corresponden a las especies: Rachycentrum canadum, Elops saurus y Caulolatilus chrysops. Estos registros amplían significativamente el límite austral de su distribución. La presencia ocasional de estas especies está asociada al transporte de agua subtropical cálida...

Matriz para ingeniería de tejido óseo: modificación superficial con zinc. Estudio preliminar. [Scaffold for bone tissue engineering: superficial modification with zinc. Preliminary study

Directory of Open Access Journals (Sweden)

Cristian Martínez

2013-09-01

Full Text Available El objetivo del presente trabajo es desarrollar un método de síntesis de matrices para ingeniería de tejidos, capaces de acelerar los procesos reparativos y disminuir el riesgo de infección, destinadas a cirugías reconstructivas que involucren el tejido óseo. A este fin se emplea la fase mineral de hueso bovino, la hidroxiapatita, conservando su estructura tridimensional. Esta se obtiene a partir de un proceso de lavado químico, seguido de un proceso térmico que elimina todos los componentes orgánicos. Esta matriz es modificada superficialmente con óxido de zinc (ZnO, elemento reconocido por su acción en diversos procesos biológicos y su acción antibacteriana. El procedimiento involucra la intrusión de dispersiones de ZnO en solución de alcohol-1,2,3 propanotriol, efectuadas en un baño térmico y el ulterior sinterizado a alta temperatura. El grado de fijación y la concentración del Zn sobre la matriz de hidroxiapatita se determinan por medio de microscopia electrónica y espectrometría en energías. La difracción de rayos X muestra que la incorporación de los iones de Zn en la superficie forma fosfatos de Zn. El original proceso desarrollado permite modificar, en forma sencilla, injertos óseos sintéticos, otorgando capacidad antibacteriana y osteoproliferativa al sustrato osteconductor.

Quiste óseo aneurismático mandibular de tipo sólido Mandibular solid aneurysmal bone cyst

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Marta Saldaña Rodríguez

2013-06-01

Full Text Available El quiste óseo aneurismático sólido es una lesión ósea benigna muy infrecuente de la que no existe consenso en relación a su origen etiopatogénico. Presenta características clínicas, radiológicas e histológicas inespecíficas, por lo que los estudios ultraestructurales son fundamentales para su diagnóstico y clasificación. El diagnóstico diferencial es extenso e incluye múltiples lesiones óseas como el granuloma reparativo de células gigantes e incluso tumores malignos como el osteosarcoma. El tratamiento de elección es la cirugía conservadora. La recidiva se debe fundamentalmente a la extirpación incompleta.Solid aneurysmal bone cyst is a rare benign bone lesion for which no consensus exists regarding its origin. It has nonspecific clinical, radiological and histological features so ultrastructural studies are essential for diagnosis and classification. The differential diagnosis is extensive and includes a variety of bone lesions, such as giant cell reparative granuloma, and even malignant tumors like osteosarcoma. The treatment of choice is conservative surgery. Recurrence is due mainly to incomplete resection.

Injertos óseos: Una alternativa efectiva y actual para la reconstrucción del complejo cráneo-facial BONE GRAFTS: AN EFFECTIVE AND CURRENT ALTERNATIVE FOR THE RECONSTRUCTION OF THE CRANIOFACIAL COMPLEX

Directory of Open Access Journals (Sweden)

Sergio Soto Góngora

2005-04-01

Full Text Available El empleo de injertos óseos como alternativa de reconstrucción de defectos óseos, ya sean congénitos u ocasionados como traumatismos, secuelas oncológicas e infecciosas, tienen como finalidad restablecer la integridad anatómica y funcional de una estructura alterada. Durante décadas, los investigadores se han dado a la tarea de encontrar en los injertos ciertas características que respondan a cada una de las necesidades de reconstrucción; este hecho a llevado a estudiar y comparar los beneficios de algunas estructuras óseas potencialmente donadoras, que incrementen las probabilidades de éxito del tratamiento y disminuyan considerablemente los posibles riesgos y complicaciones durante la toma del injerto. De igual manera, se han estudiado diversos materiales implantológicos, sin embargo, estos no poseen la capacidad natural de inducir el proceso de regeneración ósea, haciendo de ellos materiales inertes biocompatibles de "relleno", que no sustituyen las características de los injertos, pero utilizados conjuntamente si así se requiere, pueden mejorar los resultados. El presente trabajo plantea la utilización de injertos óseos como una alternativa viable, efectiva y actual en materia de reconstrucción.The use of bone grafts as an alternative to reconstruct osteal congenital or caused defects, such as traumatisms, oncological and infectious sequelae, is aimed at restoring the anatomical and functional integrity of an altered structure. During decades, investigators have tried to find in grafts certain characteristics that response to each of the reconstruction needs. This fact has led to the study and comparison of the benefits of some osteal structures that are potential donors and may increase the chances of success and considerably reduce the possible risks and complications during the graft taking. Likewise, diverse implantation materials have been studied, but they do not have the natural capacity to induce the osteal

Molecular structure, vibrational spectra, MEP, HOMO-LUMO and NBO analysis of Hf(SeO3)(SeO4)(H2O)4

Science.gov (United States)

Yankova, Rumyana; Genieva, Svetlana; Halachev, Nenko; Dimitrova, Ginka

2016-02-01

Hf(SeO3)(SeO4)(H2O)4 was obtained with the hydrothermal synthesis. The geometry optimization of this molecule was done by Density Functional Theory (DFT/B3LYP) method with 6-31G(d) basis set and LANL2DZ for Hf. The experimental infrared spectrum was compared with calculated and complete vibrational assignment was provided. The bond orders and the electronic properties of the molecule were calculated. The natural bond orbital analysis (NBO) was performed in order to study the intramolecular bonding interactions among bonds and delocalization of unpaired electrons. The calculated highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) with frontier orbital gap were presented. The electrostatic potential was calculated in order to investigate the reaction properties of the molecule. The thermodynamic properties of the studied compound at different temperatures were calculated.

Integración de los aloinjertos óseos impregnados con alendronato: Estudio experimental. [Alendronate-impregnated­ bone­ allograft­ integration: Experimental­ study

Directory of Open Access Journals (Sweden)

Luis S. Ruchelli

2014-10-01

Full Text Available In­tro­duc­ción: el propósito de este estudio experimental es investigar la variabilidad en la reabsorción ósea de aloinjertos impregnados con alendronato respecto a aloinjertos sin impregnación con alendronato. Materiales­ y ­Métodos:­ se utilizaron 18 conejos neozelandeses, divididos en dos grupos de 9 animales cada uno. Se trabajó sobre el fémur derecho, se realizó una ventana ósea y se colocó aloinjerto con alendronato local en el grupo I y aloinjerto sin alendronato en el grupo II.­ Todos fueron sacrificados a las 10 semanas del procedimiento inicial, y se valoró el fémur operado con anatomía patológica, radiografías de frente y de perfil, y tomografía axial computarizada.­ Se evaluaron la osteointegración, la vascularización y la calidad ósea. Resultados: el estudio histológico demostró mayor osteointegración en el grupo I que en el grupo II (p = 0,003, y fenómenos bien definidos de “acoplamiento” entre el tejido óseo receptor e injertado, leve actividad osteoclástica. En el grupo II, se observó menor acoplamiento óseo (osteointegración. La evaluación de la reabsorción ósea con radiografía y tomografía computarizada no reveló una diferencia estadísticamente significativa entre ambos grupos. En el grupo I, se observó mayor osteointegración del aloinjerto (p = 0,577; no significativo. Conclusión:­ los resultados obtenidos en este trabajo experimental muestran que el alendronato local asociado a aloinjertos ayuda a mejorar la osteointegración de los aloinjertos, que es un método seguro, y que no se asocia a riesgos locales o sistémicos en conejos, aun en dosis elevadas.

Ablation of arginylation in the mouse N-end rule pathway: loss of fat, higher metabolic rate, damaged spermatogenesis, and neurological perturbations.

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Christopher S Brower

2009-11-01

Full Text Available In the N-end rule pathway of protein degradation, the destabilizing activity of N-terminal Asp, Glu or (oxidized Cys residues requires their conjugation to Arg, which is recognized directly by pathway's ubiquitin ligases. N-terminal arginylation is mediated by the Ate1 arginyltransferase, whose physiological substrates include the Rgs4, Rgs5 and Rgs16 regulators of G proteins. Here, we employed the Cre-lox technique to uncover new physiological functions of N-terminal arginylation in adult mice. We show that postnatal deletion of mouse Ate1 (its unconditional deletion is embryonic lethal causes a rapid decrease of body weight and results in early death of approximately 15% of Ate1-deficient mice. Despite being hyperphagic, the surviving Ate1-deficient mice contain little visceral fat. They also exhibit an increased metabolic rate, ectopic induction of the Ucp1 uncoupling protein in white fat, and are resistant to diet-induced obesity. In addition, Ate1-deficient mice have enlarged brains, an enhanced startle response, are strikingly hyperkinetic, and are prone to seizures and kyphosis. Ate1-deficient males are also infertile, owing to defects in Ate1(-/- spermatocytes. The remarkably broad range of specific biological processes that are shown here to be perturbed by the loss of N-terminal arginylation will make possible the dissection of regulatory circuits that involve Ate1 and either its known substrates, such as Rgs4, Rgs5 and Rgs16, or those currently unknown.

The Influencing Factors of SEO Preference for China’s Listed Companies-An Empirical Study Based on Cox Proportional Hazard Model%我国上市公司股权融资偏好的影响因素--基于Cox比例危险模型的实证研究

Institute of Scientific and Technical Information of China (English)

2015-01-01

文章基于2001-2013年我国A股市场上市公司的面板数据，研究发现：上市公司的股权融资行为基本符合以内源融资为首要渠道的“啄食顺序理论”，盈利能力较高的企业优先选择留存收益作为主要的融资渠道，而盈利能力较差的企业则通过盈余管理获取增发资格。同时，研究结果还表明上市公司的股权融资偏好同其股权结构联系紧密，大股东为获得超额资本收益，通过盈余管理等手段实行高价增发榨取中小股东利益。文章揭示了上市公司股权融资偏好的真实动因，为研究与规范上市公司融资行为提供了实证基础。%Based on the panel data of A-share listed companies from 2001 to 2013, the paper, by making a study, finds that seasoned equity offerings(SEOs)of Chinese listed companies basically follow the‘Pecking Order Theory’, which means that internal financing is the primary channel. The high profitable companies prefer to choose retained earnings as the main financing channel, whereas poor profitable companies use earnings management to obtain the qualifications to SEO. Moreover,the study results also indicate that the SEO preference of listed companies is highly correlated with the ownership structure. Large shareholders squeeze the interests of minority shareholders by using financial tunneling method in order to ob⁃tain the excess capital gains. This paper reveals the true incentives of the SEO preference and provides an empirical basis to study and regulate the financing behavior of listed companies.

Cementos óseos acrílicos modificados con hidroxiapatita/acetato de vinilo: caracterización mecánica, termoanálitica y bioactividad in vitro Acrylic bone cement modified whit hydroxiapatyte/vinyl acetate: mechanical, thermoanalytical characterization and in vitro bioactivity

Directory of Open Access Journals (Sweden)

Nayrim B. Guerra

2010-06-01

Full Text Available Los cementos óseos se han convertido en los últimos años en biomateriales de gran utilidad en la fijación de prótesis y en la reconstrucción del hueso. El objetivo de este trabajo es evaluar las propiedades termoanalíticas tales como temperatura máxima de polimerización y tiempo de fraguado en cementos óseos acrílicos modificados con hidroxiapatita/acetato de vinilo, determinar la resistencia a la compresión axial y realizar ensayos de bioactividad in vitro. Diferentes contenidos de acetato de vinilo fueron incorporados en cementos óseos acrílicos cargados todos con un 30 % de hidroxiapatita CORALINA® HAP-200. Las propiedades mecánicas y los parámetros de curado fueron evaluados cumpliendo lo establecido en la Norma ISO 5833 descrita para cementos óseos acrílicos. Se determinaron los parámetros termoanalíticos, obteniéndose tiempos de fraguados entre 3 y 6 minutos y los valores de temperaturas máximas de polimerización oscilan entre 66 y 88 °C. Se obtuvo formulaciones con valores de resistencia a la compresión superiores a lo establecido en la Norma ISO 5833. Se demostró la bioactividad de las formulaciones mediante la inmersión de las muestras en fluido biológico simulado, observándose en la superficie de las mismas la nucleación y el crecimiento de cristales con morfología similar a las apatitas biológicas.Bone cements have become biomaterials of great utility in the prosthesis fixation and as substitutes to the bone. The objective of this study is to evaluate the thermo analytical properties such as setting time and peak temperature of polymerization of acrylic bone cement modified with hydroxyapatite/vinyl acetate, to determine the compression strengths and perform in vitro bioactivity tests. Amounts of vinyl acetate component were incorporated in different percentages in acrylic bone cements, all loaded with 30 % of hydroxyapatite CORALINA® HAP-200. Curing parameters and mechanical properties were

SEO-копирайтинг как технология создания текстов для сайтов спортивных клубов

OpenAIRE

Киуру, Константин

2013-01-01

Рассматривается содержание технологии SEO-копирайтинга в процессе создания контента сайтов спортивных клубов. Определяется понятие SEO-копирайтинга, рассматриваются его особенности, требования к тексту, приводится алгоритм SEO-процесса.

Influencia de la hipoxia sobre el metabolismo óseo: rol central del factor inducible por hipoxia

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Elías Ernesto Aguirre Siancas

2013-10-01

Full Text Available El conocimiento de la influencia de la hipoxia sobre la fisiología humana dio un salto cualitativo cuando se descubrió al factor inducible por hipoxia (HIF. Las vías moleculares que este factor de transcripción regula son variadas y complejas, cuya comprensión continuamente se sigue profundizando. En la fisiología y en la fisiopatología del tejido óseo se desarrollan varios procesos característicos, como la osificación, la remodelación y la reparación. La disminución en la disposición de oxígeno determina la estabilización del HIF en muchos grupos celulares, entre los cuales destacan las células del linaje osteogénico. Este factor regula la expresión de múltiples genes, siendo, quizás, el más importante el que codifica al factor de crecimiento vascular del endotelio (VEGF, debido a su decisiva implicancia en el proceso de osteogénesis, directamente activando a las células osteoblásticas o indirectamente mediante su potente acción angiogénica. En este artículo, se hace una revisión actualizada sobre el rol central del HIF sobre la fisiología ósea, detallando la regulación de las principales vías moleculares dependientes de dicho factor de transcripción.

“El asesinato del Chantre Don Ventura Ferrer. Clérigos y bandos en la Seo valentina seiscentista”

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Callado Estela, Emilio

2014-06-01

Full Text Available The cathedral clergy did not remain aloof from the factions that drew together a major part of the valencian society during the XVII century. A good example is the case of the precentor Don Ventura Ferrer, who led one of the cathedral sections and who, supported by the Vallterra family, sought the control of the first church of the kingdom. On the opposite side was the group of canons represented by the admiral of Aragón, head of the opposing supporters and liable for the precentor’s murder in 1661. This event revealed the overlapping of the ecclesiastic world and the phenomenon of banditry.El clero de la Seo no fue ajeno a las bandositats que aglutinaron a buena parte de la sociedad valenciana durante el siglo XVII. Lo demuestra el caso del chantre don Ventura Ferrer, líder de una de las facciones catedralicias que, con el apoyo externo del bando de los Vallterra, luchaba por el control de la primera iglesia del reino. Frente a él, el grupo de canónigos patrocinado por el Almirante de Aragón, a la cabeza de la parcialidad contraria y responsable último del asesinato del chantre en 1661, suceso este que pondría al descubierto la imbricación entre el mundo eclesiástico y el fenómeno del bandolerismo.

I Conferencia Nacional de Consenso sobre el Injerto Óseo del Seno Maxilar 1st National Consensus Conference on maxillar sinus bone grafts

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P.M. Villarreal

2010-06-01

Full Text Available Objetivo: El objetivo de la I Conferencia Española de Consenso sobre el Injerto Óseo Sinusal era intentar llegar a puntos de acuerdo sobre las principales controversias de esta técnica, aplicada de forma muy variada y con el empleo de materiales muy diversos, y conseguir plasmar los mismos en un documento resumen consensuado por todos los autores. Material y método: Durante los días 17 y 18 de octubre de 2008 se celebró en Oviedo la citada conferencia, auspiciada por la Sociedad Española de Cirugía Oral y Maxilofacial. En ella se dieron cita un total de 50 ponentes de reconocido prestigio nacional e internacional que repasaron en 6 mesas de trabajo las principales controversias sobre los injertos óseos sinusales. Tras las conferencias de los ponentes, los moderadores establecían las principales conclusiones de cada mesa y se abría un turno de debate donde participaban todos los asistentes. Resultado: Este documento y sus conclusiones emanan de las presentaciones realizadas por los ponentes y de las deliberaciones y acuerdos de cada mesa de trabajo. Ambos han sido aprobados tras varias correcciones por todos los autores antes de ser enviados para su publicación. Además, han obtenido el reconocimiento científico oficial de la Sociedad Española de Cirugía Oral y Maxilofacial y deben servir como base para futuros estudios y reuniones científicas. Conclusiones: El objetivo fundamental cuando se realiza un injerto óseo sinusal es la formación de hueso vital en el seno maxilar, para conseguir la supervivencia a largo plazo de los implantes tras su carga protésica. Para ello, la técnica y la secuencia de tratamiento deben orientarse a conseguir resultados predecibles y estables en el tiempo, aunque esto suponga un mayor tiempo de espera hasta la colocación de la prótesis. La estabilidad inicial del implante es el factor clave para la osteointegración y debe ser el principal criterio para indicar implantes simultáneos o diferidos

Alteraciones del Metabolismo óseo y mineral en enfermedad renal crónica pre-diálisis

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Dr. C. Aquiles Jara

2010-07-01

Full Text Available Las alteraciones del metabolismo mineral y óseo se inician tempranamente en el desarrollo de la enfermedad renal crónica (ERC, aunque las modificaciones en los niveles séricos de calcio y fósforo sólo se pueden apreciar en las etapas finales de la ERC debido a los mecanismos adaptativos que ocurren inicialmente. Con la pérdida de función renal ocurre retención de fósforo, lo que estimula la producción del factor de crecimiento fibroblástico 23 (FGF-23 por el hueso. Este factor inhibe la reabsorción de fósforo en el túbulo proximal disminuyendo la expresión de los cotransportadores sodio-fósforo 2a y 2c, lo que provoca una respuesta fosfatúrica, y entonces, normalizando los niveles de fósforo sérico, en una respuesta similar a lo que ocurre con la estimulación de paratohormona (PTH. Sin embargo, a diferencia de PTH, el FGF-23 inhibe la enzima 1-α-hidroxilasa y de este modo disminuye los niveles de calcitriol, lo que explica que la primera alteración mineral que se aprecia en los pacientes con ERC es la caída de los niveles de calcitriol, previo al aumento de PTH, y muy anterior al incremento en los niveles de fósforo sérico. Los eventos cardiovasculares constituyen la principal causa de muerte en pacientes con enfermedad renal crónica, tanto en prediálisis como en diálisis crónica, con una mortalidad en hemodiálisis crónica 10–20 veces mayor a la observada en la población general. Se ha demostrado que las alteraciones del metabolismo mineral y óseo son un componente importante en el riesgo cardiovascular de los enfermos con ERC. Hiperfosfemia, PTH e hipercalcemia son factores independientes de riesgo cardiovascular y mortalidad. A su vez, la calcificación vascular en la población con ERC ocurre en forma precoz y progresa rápidamente, en paralelo con una elevada tasa de enfermedad cardiovascular prematura. En el curso de la ERC se ha demostrado que no sólo los niveles de 1,25-(OH2-vitaminaD (calcitriol se

Comment on "Evaluating interactions between groundwater and vadose zone using the HYDRUS-based flow package for MODFLOW" by Navin Kumar C. Twarakavi, Jirka Šimůnek and Sophia Seo

Science.gov (United States)

Niswonger, R.G.; Prudic, David E.

2009-01-01

Twarakavi et al (2008) compared four packages that can be used to estimate recharge for regional-scale groundwater flow simulations using MODFLOW (Harbaugh, 2005). This comment is focused on the comparisons made between two of these packages, namely, UZF1 (Niswonger et al., 2006) and a derivative of HYDRUS referred to herein as HYDRUS (Seo et al., 2007). In their paper, Twarakavi et al. (2008) stated that HYDRUS more accurately simulates unsaturated flow processes and groundwater recharge as compared to UZF1. However, Twarakavi et al. (2008) did not address several important differences between these models that undermine the advantages of HYDRUS as compared to UZF1 for simulating recharge. These differences were not revealed by the comparisons presented by Twarakavi et al. because the test simulations used to compare the models were too simple

Influencia de los glucocorticoides inhalados sobre la densidad mineral ósea y el metabolismo óseo

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Fernando D. Saraví

2000-04-01

Full Text Available Los glucocorticoides inhalados (GCI constituyen hoy un tratamiento de primera línea del asma bronquial. Los efectos sistémicos de los GCI, como la supresión del eje hipotalámico- hipofisario-adrenal, son en general menores que los de los glucocorticoides orales. Sin embargo, existe el riesgo de efectos adversos sobre el hueso a largo plazo. El objetivo del presente trabajo fue revisar los datos publicados acerca de los efectos de los GCI sobre los marcadores del metabolismo óseo y la densidad mineral ósea en adultos y en pacientes pediátricos. Aunque los estudios examinados no proporcionan resultados uniformes, en términos generales sugieren que los GCI pueden afectar al metabolismo y a la densidad mineral ósea, en particular 1 cuando se administran a dosis elevadas (más de 400 µg/día en niños y más de 800 µg/día en adultos; 2 en pacientes pediátricos, en los que también pueden afectar al crecimiento en estatura; 3 en pacientes cuya ingesta de calcio y vitamina D es inadecuada, y 4 en mujeres postmenopáusicas sin terapia de reposición hormonal. En general, a dosis terapéuticamente equivalentes, la beclometasona tiene mayor efecto deletéreo sobre el hueso que la budesonida, y esta mayor que la fluticasona. Además de la precaución obvia de utilizar la menor dosis eficaz, se proponen como medidas preventivas: 1 la adecuada instrucción sobre el uso de los aerosoles; 2 el uso de cámaras de inhalación; 3 el enjuague bucal tras la administración de GCI, y 4 ajustes o suplementos dietéticos para asegurar una adecuada ingesta de calcio y vitamina D.

31 CFR 30.7 - Q-7: How does a TARP recipient comply with the certification and disclosure requirements under...

Science.gov (United States)

2010-07-01

... senior risk officers, the SEO compensation plans to ensure that these plans do not encourage SEOs to take... officer (SEO) compensation plans and has made all reasonable efforts to ensure that these plans do not... committee must provide a narrative description identifying each SEO compensation plan and explaining how the...

Marcadores óseos de actividad física en la población aborigen de Gáldar (Siglos XI-XV DNE

Directory of Open Access Journals (Sweden)

Jonathan A. Santana Cabrera

2013-10-01

Full Text Available La división social del trabajo es uno de los aspectos fundamentales que definen las relaciones sociales de producción. El ob­jetivo de este trabajo de investigación es apre­der cómo se materializa de esta división social del trabajo en la última fase del poblamiento prehispánico de Gáldar. Con este fin se ana­lizaron los marcadores óseos de actividad fí­sica en la extremidad superior de las series esqueléticas de los cementerios de El Agujero (n=41 y Juan Primo (n=9, ambos localizados en Gáldar y datados por métodos radiocarbó­nicos entre los siglos XI y XV d.n.e. Los mar­cadores óseos de actividad física son reaccio­nes óseas que se originan como respuesta a la actividad física y, por lo tanto, su análisis es una herramienta válida para el estudio de los patrones cotidianos de actividad laboral. Los resultados obtenidos manifestaron desigual­dades estadísticamente significativas entre ambas poblaciones, entre sexos y, en menor grado, entre la lateralidad de las extremidades y la edad. Estos datos ponen de relieve dife­rencias en los patrones de actividad cotidianos llevados a cabo por estas poblaciones. Estas desigualdades en la expresión de los marca­dores de actividad sugieren diferencias entre individuos en su posición dentro de la organi­zación del proceso productivo y, más concre­tamente, de la división social del trabajo.The social division of labor is one of the key aspects that define the social relations of production. The objective of this research was to verify the existence of this social divi­sion of labor during the final period of the pre- Hispanic occupation of Gáldar. For this pur­pose we have analyzed markers of physical activity in the upper limb from skeletal series of the cemeteries of El Agujero (No 41 and Juan Primo (No 9, both located in Gáldar and dated by radiocarbon methods between the 11th and 15th centuries AD. Skeletal markers of physi­cal activity are bone reactions which

Factores de preservación diferencial de restos óseos humanos contemporáneos de la “colección Chacarita” (Ciudad Autónoma de Buenos Aires, Argentina

Directory of Open Access Journals (Sweden)

Luna, Leandro

2012-08-01

Full Text Available Numerosos agentes intrínsecos y extrínsecos afectan de diferentes formas los grados de preservación de restos óseos humanos. La observación de la forma e intensidad en las que tales factores inciden en las características del registro osteológico de una muestra contemporánea con información fehaciente de referencia (sexo, edad, fecha y causa de muerte, ofrece la posibilidad de aportar datos locales para contribuir a la comprensión de la compleja dinámica del proceso de descomposición cadavérica y preservación del esqueleto. En este trabajo se analizan y comparan estadísticamente variables contextuales (anegabilidad y saturación del terreno, alcalinidad y presencia de adipocira, de raíces de árboles y de envoltorio y tafonómicas (porcentaje de completitud, índice de fragmentación y deterioro óseo en 20 coxales humanos con objeto de analizar, desde una perspectiva osteológica, de qué forma la variación en el impacto de esos factores afecta los grados de preservación de los esqueletos. Se identifican tendencias que sugieren la acción de algunos agentes específicos, al mismo tiempo que la ausencia de asociación de numerosas variables aporta información relevante para contrastar con modelos previamente generados. Se describen algunas asociaciones estadísticas entre variables que afectan a los individuos femeninos y otras que indican una tendencia hacia la preservación ósea por parte de la acción de las raíces, en oposición a lo habitualmente planteado en las investigaciones tafonómicas; por último, se enfatiza la necesidad de considerar variables poco exploradas desde una perspectiva bioarqueológica, como la saturación del terreno, la presencia de algún tipo de envoltorio y la acción de la adipocira, como aspectos que afectan significativamente la preservación ósea y por lo tanto, el potencial del registro analizado para ofrecer información de interés osteológico.

The sieve element occlusion gene family in dicotyledonous plants.

Science.gov (United States)

Ernst, Antonia M; Rüping, Boris; Jekat, Stephan B; Nordzieke, Steffen; Reineke, Anna R; Müller, Boje; Bornberg-Bauer, Erich; Prüfer, Dirk; Noll, Gundula A

2011-01-01

Sieve element occlusion (SEO) genes encoding forisome subunits have been identified in Medicago truncatula and other legumes. Forisomes are structural phloem proteins uniquely found in Fabaceae sieve elements. They undergo a reversible conformational change after wounding, from a condensed to a dispersed state, thereby blocking sieve tube translocation and preventing the loss of photoassimilates. Recently, we identified SEO genes in several non-Fabaceae plants (lacking forisomes) and concluded that they most probably encode conventional non-forisome P-proteins. Molecular and phylogenetic analysis of the SEO gene family has identified domains that are characteristic for SEO proteins. Here, we extended our phylogenetic analysis by including additional SEO genes from several diverse species based on recently published genomic data. Our results strengthen the original assumption that SEO genes seem to be widespread in dicotyledonous angiosperms, and further underline the divergent evolution of SEO genes within the Fabaceae.

en ingeniería de tejido óseo. Fase I: estudios de biocompatibilidad-efectos del hidróxido de calcio

Directory of Open Access Journals (Sweden)

Daniel Gallego

2006-01-01

Full Text Available Actualmente existe una creciente e insatisfecha demanda de substitutos óseos con buen desempeño, tanto desde el punto de vista biológico como mecánico. Basados en las excelentes propiedades mecánico-estructurales del cemento pórtland, se plantea un estudio exploratorio de biocompatibilidad de este material. Se prepararon substratos de cemento pórtland gris tipo I bajo diferentes tratamientos (neutralizado-SN, carbonatado-SC, y no neutralizado-SnN, los cuales fueron luego sometidos a un ensayo de contacto directo con células CHO y HOS durante 24 h. Los substratos se caracterizaron por SEM, y tinciones con fnolftaleía para determinar su pH; mientras que la evaluación del estado del cultivo fue realizada por microscopía de contraste de fase. Los resultados indican que el pH fue mayor para SnN (> 12,0, seguido de SN, y finalmente de los SC (≈ 7,4; de igual manera se observó que la citotoxicidad de los substratos disminuyó en proporción al valor del pH. Se postula que el Ca(OH2 formado durante la hidratación del cemento es el causante del efecto tóxico de éste, y que al agotar las fuentes de Ca(OH2, ya sea por carbonatación o neutralización, se afecta de manera positiva la biocompatibilidad del cemento pórtland.

Molecular and phylogenetic characterization of the sieve element occlusion gene family in Fabaceae and non-Fabaceae plants.

Science.gov (United States)

Rüping, Boris; Ernst, Antonia M; Jekat, Stephan B; Nordzieke, Steffen; Reineke, Anna R; Müller, Boje; Bornberg-Bauer, Erich; Prüfer, Dirk; Noll, Gundula A

2010-10-08

The phloem of dicotyledonous plants contains specialized P-proteins (phloem proteins) that accumulate during sieve element differentiation and remain parietally associated with the cisternae of the endoplasmic reticulum in mature sieve elements. Wounding causes P-protein filaments to accumulate at the sieve plates and block the translocation of photosynthate. Specialized, spindle-shaped P-proteins known as forisomes that undergo reversible calcium-dependent conformational changes have evolved exclusively in the Fabaceae. Recently, the molecular characterization of three genes encoding forisome components in the model legume Medicago truncatula (MtSEO1, MtSEO2 and MtSEO3; SEO = sieve element occlusion) was reported, but little is known about the molecular characteristics of P-proteins in non-Fabaceae. We performed a comprehensive genome-wide comparative analysis by screening the M. truncatula, Glycine max, Arabidopsis thaliana, Vitis vinifera and Solanum phureja genomes, and a Malus domestica EST library for homologs of MtSEO1, MtSEO2 and MtSEO3 and identified numerous novel SEO genes in Fabaceae and even non-Fabaceae plants, which do not possess forisomes. Even in Fabaceae some SEO genes appear to not encode forisome components. All SEO genes have a similar exon-intron structure and are expressed predominantly in the phloem. Phylogenetic analysis revealed the presence of several subgroups with Fabaceae-specific subgroups containing all of the known as well as newly identified forisome component proteins. We constructed Hidden Markov Models that identified three conserved protein domains, which characterize SEO proteins when present in combination. In addition, one common and three subgroup specific protein motifs were found in the amino acid sequences of SEO proteins. SEO genes are organized in genomic clusters and the conserved synteny allowed us to identify several M. truncatula vs G. max orthologs as well as paralogs within the G. max genome. The unexpected

Standard enthalpies of formation of uranium compounds

International Nuclear Information System (INIS)

Cordfunke, E.H.P.; Ouweltjes, W.

1977-01-01

Enthalpies of solution of β-UO 2 SO 4 and α-UO 2 SeO 4 in H 2 SO 4 (aq) and of UO 2 SeO 3 in H 2 SO 4 (aq) + Ce(SO 4 ) 2 have been measured calorimetrically. Together with measurements of the enthalpy of solution of γ-UO 3 in these solvents, the standard enthalpies of formation of anhydrous β-UO 2 SO 4 , α-UO 2 SeO 4 , and UO 2 SeO 3 have been derived. The results obtained are: ΔHsub(f) 0 (s, 298.15 K)/ kcalsub(th) mol -1 : β-UO 2 SO 4 , -(440.9 +- 0.2); α-UO 2 SeO 4 , -(367.9 +- 0.8); UO 2 SeO 3 , -(363.8 +- 0.2). (author)

Artrodese na coluna cervical utilizando SICAP como substituto de enxerto ósseo Artrodesis en la columna cervical utilizando SICAP como sustituto de injerto óseo Cervical spine fusion utilizing silicated calcium phosphate bone graft substitute (SICAP

Directory of Open Access Journals (Sweden)

Juliano Fratezi

2011-01-01

Full Text Available OBJETIVO: Substitutos de enxerto ósseo autólogo foram desenvolvidos para evitar as complicações da retirada de enxerto ósseo autólogo. SiCaP (Actifuse, ApaTech EUA, Reino Unido é um enxerto ósseo composto de cálcio-fosfato com um substituição de silicato na estrutura química, com uma estrutura tridimensional que parece osso natural. MÉTODOS: 19 pacientes foram submetidos à fusão óssea cervical e analisados retrospectivamente. A avaliação radiográfica e avaliação clínica foram realizadas utilizando o questionário Neck Disability Index e a escala análoga da dor (VAS pré- e pós-operação. RESULTADOS: O período médio de acompanhamento pós-operatório foi de 14 meses ± 5 meses (7-30 meses. 11 pacientes foram submetidos à fusão via anterior; 5 pacientes via posterior e 3 pacientes via anterior e posterior. A revisão radiográfica mostrou 19/19 (100% de fusão óssea, nenhum caso apresentou subsidência, quebra ou soltura de material de implante ou movimento nos níveis fusionados. Nenhum exemplo de ossificação heterotópica ou de crescimento ósseo intracanal foi observado. Clinicamente, os escores médios do Neck Disability decresceram 13,3 pontos (media pré-op. de 34,5, pós-op. de 21,2, melhora de 39%, a média da VAS para dor cervical decresceu 2 pontos (2,7 pré-op para 0,7 pós-op.; melhora de 74,1%. Não foram observadas complicações como infecção, osteólise ou edema excessivo das partes moles. CONCLUSÃO: Os resultados preliminares obtidos nesta série foram encorajadores com o uso do SICaP como enxerto ósseo, com sólida fusão óssea obtida em todos os casos e sem formação de ossificação heterotópica ou crescimento de osso intracanal. SIcaP demonstra ser um substituto confiável para o enxerto ósseo autólogo na coluna cervical.OBJETIVO: Sustitutos de injerto óseo autólogo fueron desarrollados para evitar las complicaciones de la recogida de injerto óseo autólogo. SiCaP (Actifuse, Apa

Extensión del límite austral de distribución de tres especies de peces óseos tropicales en la costa de la Provincia de Buenos Aires, Argentina Southern extension of three species of tropical bony fishes along the coast of Buenos Aires Province, Argentina

OpenAIRE

Andrés C Milessi; Jorge H Colonello; Federico Cortés; Carlos A Lasta; Juan A Waessle; Lucrecia Allega

2012-01-01

Se presentan tres nuevos registros de especies de peces óseos cuya distribución corresponde a aguas tropicales, capturados por buques pesqueros en la costa de la Provincia de Buenos Aires, Argentina (CPBA, 36°-38°S). Los ejemplares corresponden a las especies: Rachycentrum canadum, Elops saurus y Caulolatilus chrysops. Estos registros amplían significativamente el límite austral de su distribución. La presencia ocasional de estas especies está asociada al transporte de agua subtropical cálida...

Reply to Comment by Xu et al. on "Sr-Nd isotope composition and clay mineral assemblages in eolian dust from the central Philippine Sea over the last 600 kyr: Implications for the transport mechanism of Asian dust" by Seo et al.

Science.gov (United States)

Seo, Inah; Lee, Yong Il; Yoo, Chan Min; Kim, Hyung Jeek; Hyeong, Kiseong

2016-12-01

Against Xu et al. (2016), who argued that East Asian Desert (EAD) dust that traveled on East Asian Winter Monsoon winds dominates over Central Asian Desert (CAD) dust in the Philippine Sea with presentation of additional data, we reconfirm Seo et al.'s (2014) conclusion that CAD dust carried on the Prevailing Westerlies and Trade Winds dominates over EAD dust in overall dust budget of the central Philippine Sea. The relative contribution of dust from EADs and CADs using clay mineral composition should be evaluated with elimination of mineralogical contribution from the volcanic end-member which is enriched in kaolinite and overestimate the contribution of EAD dust.

Static yield stress of a magnetorheological fluid containing Pickering emulsion polymerized Fe2O3/polystyrene composite particles.

Science.gov (United States)

Seo, Youngwook P; Kwak, Soonjong; Choi, Hyoung Jin; Seo, Yongsok

2016-02-01

The flow behaviors of magnetorheological (MR) suspensions containing Pickering emulsion polymerized Fe2O3/polystyrene (PS) composite particles were reanalyzed using the Seo-Seo model. The experimental shear stress data obtained experimentally from the magnetorheological fluid fit well to the Seo-Seo model, indicating that this model can describe the structural reformation process of the aligned fibers at various shear rates. Unlike the dynamic yield stress obtained from the Cho-Choi-Jhon (CCJ) model, the static yield stresses obtained from the Seo-Seo model exhibit the same quadratic dependence on the magnetic field strength for both pure Fe2O3 particle suspension and Fe2O3/PS particle suspensions, which is in agreement with the predictions of the polarization model. The static yield stress plausibly explains the difference in underlying mechanism of MR fluids. Copyright © 2015 Elsevier Inc. All rights reserved.

Incorporation of essential oil in alginate microparticles by multiple emulsion/ionic gelation process.

Science.gov (United States)

Hosseini, Seyede Marzieh; Hosseini, Hedayat; Mohammadifar, Mohammad Amin; Mortazavian, Amir Mohammad; Mohammadi, Abdorreza; Khosravi-Darani, Kianoosh; Shojaee-Aliabadi, Saeedeh; Dehghan, Solmaz; Khaksar, Ramin

2013-11-01

In this study, an o/w/o multiple emulsion/ionic gelation method was developed for production of alginate microparticles loaded with Satureja hortensis essential oil (SEO). It was found that the essential oil concentration has significant influence on encapsulation efficiency (EE), loading capacity (LC) and size of microparticles. The values of EE, LC and particle mean diameter were about 52-66%, 20-26%, and 47-117 μm, respectively, when the initial SEO content was 1-3% (v/v) .The essential oil-loaded microparticles were porous, as displayed by scanning electron micrograph. The presence of SEO in alginate microparticles was confirmed by Fourier transform-infrared (FT-IR) spectroscopy and differential scanning calorimetry (DSC) analyses. SEO-loaded microparticles showed good antioxidant (with DPPH radical scavenging activity of 40.7-73.5%) and antibacterial properties; this effect was greatly improved when the concentration of SEO was 3% (v/v). S. aureus was found to be the most sensitive bacterium to SEO and showed a highest inhibition zone of 304.37 mm(2) in the microparticles incorporated with 3% (v/v) SEO. In vitro release studies showed an initial burst release and followed by a slow release. In addition, the release of SEO from the microparticles followed Fickian diffusion with acceptable release. Copyright © 2013 Elsevier B.V. All rights reserved.

Narratiivsed piltmõistatused - mitme folkloorižanri piirnähtus / Piret Voolaid

Index Scriptorium Estoniae

Voolaid, Piret, 1971-

2009-01-01

Omapärasest folkloorižanrist, narratiivsetest piltmõistatustest eesti arhiivimaterjali hulgas - otsitakse nende ühisjooni jutužanriga, uuritakse nende tegevustikku ja -kohti, samuti tegelasi ning analüüsitakse struktuuri

The chemical consequences of thermal neutron capture in alkali selenates

International Nuclear Information System (INIS)

Duplatre, G.; Vargas, J.I.

1977-01-01

The initial retention of the SeO 4 2- ion after thermal neutron capture has been studied in various matrices by chemical analysis. A comparison between the thermal behaviour of the chemically analyzed Sesup(IV) and the disappearance of the E.P.R. species SeO 3 - and SeO 4 3- showed that the retention fraction would include all species with oxidation state higher or equal to VI. The retentions observed in the different matrices show the existence of four families with respective retentions of: 2.6%[K 2 SeO 4 diluted in (NH 4 ) 2 SO 4 ], 9.2% [anhydrous and hydrated Li and Ca selenates; K 2 SeO 4 diluted in NaIO 3 ; Se + implanted in K 2 SeO 4 ; Triglycine selenate], 21.5% [K 2 SeO 4 diluted in KNO 3 , K 2 SO 4 , Na 2 WO 4 and Na 2 WO 4 .2H 2 O] and 32.0% [Na,K and Cs selenates]. Whereas chemical considerations may be invoked for the (NH 4 ) 2 SO 4 matrix, a mechanical model is proposed for the three other groups. (author)

Review of submissions: competition impacts

NARCIS (Netherlands)

Burghouwt, G.; de Wit, W.

2015-01-01

The Airports Commission requested ITF/SEO to provide technical assistance with analysing responses that pertain to the previous work undertaken by the ITF/SEO. This report assesses the submissions by the stakeholders in relation to competition impacts and compares them with the ITF/SEO results and

Potentsiaalsetest sõnadest leksika ja grammatika vaatenurgast / Silvi Vare

Index Scriptorium Estoniae

Vare, Silvi, 1939-

2008-01-01

Eesti keele vähekasutatavatest lühikestest verbaalnoomenitest. Uuritakse nende leksikograafilist tausta, püütakse välja selgitada nende tegelikku tarvitusulatust ning analüüsitakse nendega seonduva sõnamoodustusinfo paikapidavust

Nukkude salapärane maailm / Riina Robinson

Index Scriptorium Estoniae

Robinson, Riina

2007-01-01

Nukkudest, nende ajaloost, valmistamisviisidest ja materjalidest, kasutamise eesmärkidest, matrjoshkadest, barbie'st, seksikatest Bratz-nukkudest ja nende mõjust laste psüühhikale, nukust kui moe propageerijast ning nukumööblist

Kakskümmend kuus tankisti ja meer / Kaarel Tarand

Index Scriptorium Estoniae

Tarand, Kaarel, 1966-

2005-01-01

Et Riigikogu liikmed ei tohi enam paralleelselt kohalikes omavalitsustes töötada, hakkab nende asendusliikmetena Tallinna volikogus tööle massiliselt isikuid, kellest laiem avalikkus peale nende erakondliku kuuluvuse midagi ei tea

Injerto óseo del seno maxilar en la reparación de defectos craneofaciales específicos

Directory of Open Access Journals (Sweden)

José Manuel Díaz Fernández

1998-08-01

Full Text Available Se realizó un estudio retrospectivo a 56 pacientes con defectos anatómicos específicos del complejo craneofacial, en los cuales se emplearon procedimientos reconstructivos con injerto óseo autógeno de la pared anterior del seno maxilar, en el Servicio de Cirugía Maxilofacial del Hospital Provincial "Saturnino Lora" de Santiago de Cuba, desde 1986 hasta 1994. Este tipo de injerto demostró ser seguro en la reparación de las fracturas del suelo orbitario con extensión máxima de 2 x 3 cm, así como en las deficiencias circunscritas del contorno facial en áreas tales como: frontal, pirámide nasal, cuerpo cigomático, apoyo cigomático maxilar, cuerpo mandibular, reborde orbital superior o inferior. La morbilidad posoperatoria fue mínima y la vía de acceso evita la incisión y cicatriz externa y previene complicaciones como el neumotórax, la perforación de la duramadre y la dificultad en la ambulación, a veces presentes en las áreas donantes tradicionales.A retrospective study was performed of 56 patients who had specific craniofacial defects which were treated with reconstructive methods with the autogenous bone graft of the anterior maxillar sinus wall in the Maxillofacial Surgery Service at "Saturnino Lora" Provincial Hospital in Santiago de Cuba province from 1986 to 1994. This type of grafting proved to be safe in the reconstruction of maximum 2 cm long 3 cm wide orbitary floor fractures and of facial configuration defects in such areas as front, nasal pyramide, zigomatic corpus, zigomatic maxillary support, corpus mandibullae, and upper or low orbitary fissure. The post-operation morbility was minimum as well as the access path that prevents the external acarf and complications like pneumothorax, perforation of dura mater and movement difficulties sometimes present in the traditional donor areas.

Topologically and geometrically flexible structural units in seven new organically templated uranyl selenates and selenite-selenates

Science.gov (United States)

Gurzhiy, Vladislav V.; Kovrugin, Vadim M.; Tyumentseva, Olga S.; Mikhaylenko, Pavel A.; Krivovichev, Sergey V.; Tananaev, Ivan G.

2015-09-01

Single crystals of seven novel uranyl oxysalts of selenium with protonated methylamine molecules, [C2H8N]2[(UO2)(SeO4)2(H2O)] (I), [C2H8N]2[(UO2)2(SeO4)3(H2O)] (II), [C4H15N3][H3O]0.5[(UO2)2(SeO4)2.93(SeO3)0.07(H2O)](NO3)0.5 (III), [C2H8N]3[H5O2][(UO2)2(SeO4)3(H2O)2]2(H2O)5 (IV), [C2H8N]2[H3O][(UO2)3(SeO4)4(HSeO3)(H2O)](H2SeO3)0.2 (V), [C4H12N]3[H3O][(UO2)3(SeO4)5(H2O)] (VI), and [C2H8N]3(C2H7N)[(UO2)3(SeO4)4(HSeO3)(H2O)] (VII) have been prepared by isothermal evaporation from aqueous solutions. Their crystal structures have been solved by direct methods and their uranyl selenate and selenite-selenate units investigated using black-and-white graphs from the viewpoints of topology of interpolyhedral linkages and isomeric variations. The crystal structure of IV is based upon complex layers with unique topology, which has not been observed previously in uranyl selenates. Investigations of the statistics and local distribution of the U-Obr-Se bond angles demonstrates that shorter angles associate with undulations, whereas larger angles correspond to planar areas of the uranyl selenite layers.

The effect of essential oil from sage (Salvia officinalis L.) herbal dust (food industry by-product) on the microbiological stability of fresh pork sausages

Science.gov (United States)

Šojić, B.; Ikonić, P.; Pavlić, B.; Zeković, Z.; Tomović, V.; Kocić-Tanackov, S.; Džinić, N.; Škaljac, S.; Ivić, M.; Jokanović, M.; Tasić, T.

2017-09-01

The effect of essential oil obtained from sage (Salvia officinalis L.) herbal dust (a food industry by-product) (SEO), on the pH value, microbiological stability and sensory properties of fresh pork sausages prepared without chemical additives was evaluated during 8 days of aerobic storage at 3±1°C. The addition of SEO significantly (pmeat product. Hence, the results of this study showed significant antimicrobial activity of SEO obtained from sage filter tea processing byproducts and the potential for utilising SEO in fresh pork sausages in order to enhance their stability and safety.

79Se: geochemical and crystallo-chemical retardation mechanisms

International Nuclear Information System (INIS)

Chen, F.; Ewing, R.C.

1999-01-01

79 Se is a long-lived (1.1 x 10 6 yrs) fission product which is chemically and radiologically toxic. Under Eh-pH conditions typical of oxidative alteration of spent nuclear fuel, selenite, SeO 3 2- or HSeO 3 - or selenate, SeO 4 2- , are the dominant aqueous species of selenium. Because of the high solubility of metal-selenites and metal-selenates and the low adsorption of selenite and selenate aqueous species by geological materials under alkaline conditions, selenium may be highly mobile. However, 79 Se released from altered fuel may become immobilized by incorporation into secondary uranyl phases as low concentration impurities, and this may significantly reduce the mobility of selenium. Analysis and comparison of the known structures of uranyl phases indicate that (SeO 3 ) may substitute for (SiO 3 OH) in structures of α-uranophane and boltwoodite that are expected to be the dominant alteration products of UO 2 in Si-rich groundwater. The substitutions (SeO 3 ) (SiO 3 OH) in sklodowskite, Mg[(UO 2 )(SiO 3 OH)] 2 (H 2 O) 6 and (SeO 3 ) (PO 4 ) in phurcalite, Ca 2 [(UO 2 ) 3 (PO 4 ) 2 O 2 ](H 2 O) 7 , may occur with the eliminated apical anion being substituted for by an H 2 O group, but experimental investigation is required. The close similarity between the sheets in the structures of rutherfordine, [(UO 2 )(CO 3 )] and [(UO 2 )(SeO 3 )] implies that the substitution (SeO 3 ) (CO 3 ) can occur in rutherfordine, and possibly other uranyl carbonates. However, the substitutions: (SeO 3 ) (SiO 4 ) in soddyite and (SeO 3 ) (PO 4 ) in phosphuranylite may disrupt their structural connectivity and are, therefore, unlikely. (orig.)

The role of customary law in the Kazym War : women and sacred rules / Art Leete

Index Scriptorium Estoniae

Leete, Art, 1969-

2003-01-01

Neenetsite, hantide ja manside nõukogude võimu vastasest võitlusest 1930. aastatel, mis kulmineerus aastatel 1933-1934 Kazõmi sõjana tuntud mässuga. Nende rahvaste käitumisest ülestõusu ajal, mõjutatuna nende rahvakommetest

Modstory, rituaalne revolitsioon = Modstory, ritualnaja revoljutsija / Ingrid Kohtla

Index Scriptorium Estoniae

Kohtla, Ingrid

2002-01-01

Algupärased modid olid Londoni noored, kes kuulasid ameerika bluesi ja souli, kihutasid ringi itaalia motorollereil ja kandsid elegantset riietust. Nende kõrgajaks olid aastad 1962-1966, kuid ka pärast seda on toimunud nende arvestatav taastulemine

EFFECTS OF COMPACTIVE EFFORTS ON GEOTECHNICAL PROPERTIES OF SPENT ENGINE OIL CONTAMINATED LATERITE SOIL

Directory of Open Access Journals (Sweden)

OLUREMI, J. ROTIMI

2017-03-01

Full Text Available Investigation of the effects of compactive efforts and spent engine oil (SEO contamination on the geotechnical properties of lateritic soils was made. Contaminated specimens were prepared by mixing lateritic soil with up to 10 % SEO by dry weight of the soil in step concentration of 2 % and subjected to geotechnical tests. Results indicated a decrease in the fine content, decrease in liquid limit, maximum dry density (MDD and unconfined compressive strength (UCS with up to 10 % SEO content. No general trend was observed in the optimum moisture content (OMC with increasing SEO content. The MDD, OMC and UCS values increased with increase in the compactive effort. Regression analysis of the results showed that optimum moisture content, fine content and compactive effort significantly influence the soils UCS values. Analysis of variance showed that SEO and compactive effort has significant effect on the parameters with the exception in one case. The results of laboratory tests showed that geotechnical properties of the SEO contaminated soil were immensely impaired.

31 CFR 30.9 - Q-9: What actions are necessary for a TARP recipient to comply with the standards established...

Science.gov (United States)

2010-07-01

... prohibit any golden parachute payment to a SEO and any of the next five most highly compensated employees.... Employee A is a SEO of a TARP recipient. Employee A is entitled to a payment of three times his annual... terminated employment on July 1, 2008, at which time Employee B was a SEO of a financial institution...

Syntheses, structures and characterizations of three novel vanadium selenites with organically bonded copper/nickel complex

International Nuclear Information System (INIS)

Qian, Cheng; Kong, Fang; Mao, Jiang-Gao

2016-01-01

A series of vanadium selenites covalently bonded with metal-organic complex, namely, Ni(2,2-bipy) 2 V 2 O 4 (SeO 3 ) 2 (1), Cu(2,2-bipy)V 2 O 4 (SeO 3 ) 2 ·0.5H 2 O (2) and Cu 2 (2,2-bipy) 2 V 5 O 12 (SeO 3 ) 2 (3) (2,2-bipy=2,2-bipyridine) have been hydrothermally synthesized and structurally characterized. They exhibit three different structural dimensions, from 0D cluster, 1D chain to 2D layer. Compound 1 features a 0D {Ni(2,2-bipy) 2 V 2 O 4 (SeO 3 ) 2 } 2 dimeric cluster composed of two {Ni(2,2-bipy) 2 } 2+ moieties connected by the {V 4 O 8 (SeO 3 ) 4 } 4- cluster. Compound 2 shows a 1D {Cu(2,2-bipy)V 2 O 4 (SeO 3 ) 2 } n chain in which the {Cu 2 (2,2-bipy) 2 } 4+ moieties are bridged by the {V 4 O 8 (SeO 3 ) 4 } 4− clusters. Compound 3 displays a 2D structure consisted of mixed valence vanadium selenites layers {V IV V V 4 Se IV 2 O 18 } n 4− and {Cu(2,2-bipy)} 2+ complex moieties. The adjacent layers are further interconnected via π-π interactions between the 2,2-bipy ligands exhibiting an interesting 3D supramolecular architecture. Both compound 1 and 2 contain a new {V 4 O 8 (SeO 3 ) 4 } 4− cluster and compound 3 exhibits the first 2D vanadate polyhedral layer in vanadium selenites/tellurites with organic moieties. - Graphical abstract: We got three new vanadium selenites with organically linked copper/nickel complex, namely, Ni(2,2-bipy) 2 V 2 O 4 (SeO 3 ) 2 (1), Cu(2,2-bipy)V 2 O 4 (SeO 3 ) 2 ·0.5H 2 O (2) and Cu 2 (2,2-bipy) 2 V 5 O 12 (SeO 3 ) 2 (3) by hydrothermally syntheses. They display three different structural dimensions, from 0D cluster, to 1D chain and 2D layer. Display Omitted - Highlights: • Three new compounds display three different structural dimensions, from 0D cluster, to 1D chain and 2D layer. • The Tetranuclear {V 4 O 8 (SeO 3 ) 4 } 4− cluster and the vanadate {V 5 O 17 } n 2D layer are observed firstly. • Optical Properties and Magnetic Properties of three compounds are reported.

Studies of rubidium selenate with secondary phase of RbOH under humidified reducing atmosphere

DEFF Research Database (Denmark)

Beyribey, Berceste; Hallinder, Jonathan; Poulsen, Finn Willy

2012-01-01

The high temperature properties of Rb2SeO4 have been studied by calorimetry, impedance spectroscopy and X-ray powder diffraction. As synthesized, Rb2SeO4 includes a second phase of Rb2SeO3, which can be eliminated upon heating the compound. As expected, no conductivity is observed in dry (pH2O ....001 bar) air. By changing to humidified (pH2O = 0.1 bar) air at 176 deg. C, the conductivity increases sharply from 8.6·10-8 to 1.7·10-6 S cm-1. Under humidified (pH2O = 0.1 bar) reducing atmosphere (9%H2 in N2), the conductivity increases to 2.0·10-4 S cm-1 at 317 C. Degradation of Rb2SeO3 and Rb2SeO4...

Eesti omavalitsuste maksuautonoomia suurendamise võimalusi / Viktor Trasberg

Index Scriptorium Estoniae

Trasberg, Viktor, 1961-

2003-01-01

Autor leiab, et Eesti omavalitsuste fiskaalse autonoomia tõstmine saab toimuda ainult sellistes tingimustes, kus valitseb tasakaal nende funktsioonide ja tulubaasi vahel. Kui fiskaalautonoomia ei suuda tagada piisavaid vahendeid omavalitsuste funktsioonide täitmiseks, siis on efektiivsem tagada nende pakkumine keskvalitsuse eelarvest. Tabelid

Charge-density matching in organic-inorganic uranyl compounds

International Nuclear Information System (INIS)

Krivovichev, S.V.; Krivovichev, S.V.; Tananaev, I.G.; Myasoedov, B.F.

2007-01-01

Single crystals of [C 10 H 26 N 2 ][(UO 2 )(SeO 4 ) 2 (H 2 O)](H 2 SeO 4 ) 0.85 (H 2 O) 2 (1), [C 10 H 26 N 2 ][(UO 2 )(SeO 4 ) 2 ] (H 2 SeO 4 ) 0.50 (H 2 O) (2), and [C 8 H 20 N] 2 [(UO 2 )(SeO 4 ) 2 (H 2 O)] (H 2 O) (3) were prepared by evaporation from aqueous solution of uranyl nitrate, selenic acid and the respective amines. The structures of the compounds have been solved by direct methods and structural models have been obtained. The structures of the compounds 1, 2, and 3 contain U and Se atoms in pentagonal bipyramidal and tetrahedral coordinations, respectively. The UO 7 and SeO 4 polyhedra polymerize by sharing common O atoms to form chains (compound 1) or sheets (compounds 2 and 3). In the structure of 1, the layers consisting of hydrogen-bonded [UO 2 (SeO 4 ) 2 (H 2 O)] 2- chains are separated by mixed organic-inorganic layers comprising from [NH 3 (CH 2 ) 10 NH 3 ] 2+ molecules, H 2 O molecules, and disordered electroneutral (H 2 SeO 4 ) groups. The structure of 2 has a similar architecture but a purely inorganic layer is represented by a fully connected [UO 2 (SeO 4 ) 2 ] 2- sheet. The structure of 3 does not contain disordered (H 2 SeO 4 ) groups but is based upon alternating [UO 2 (SeO 4 ) 2 (H 2 O)] 2- sheets and 1.5-nm-thick organic blocks consisting of positively charged protonated octylamine molecules, [NH 3 (CH 2 ) 7 CH 3 ] + . The structures may be considered as composed of anionic inorganic sheets (2D blocks) and cationic organic blocks self-organized according to competing hydrophilic-hydrophobic interactions. Analysis of the structures allows us to conclude that the charge-density matching principle is observed in uranyl compounds. In order to satisfy some basic peculiarities of uranyl (in general, actinyl) chemistry, it requires specific additional mechanisms: (a) in long-chain-amine-templated compounds, protonated amine molecules inter-digitate; (b) in long-chain-diamine-templated compounds, incorporation of acid-water interlayers into

Nõukogude arhitektuuripärandi nostalgia ja tulevik = Nostalgia and the future of soviet architecture's heritage / Triin Ojari

Index Scriptorium Estoniae

Ojari, Triin, 1974-

2012-01-01

Nostalgilisest ja operatiivsest lähenemisest nõukogude aja ehitusliku pärandiga suhestumisel. Autori sõnul on majade üks olulisi väärtusi nende lugudes, mis omakorda mõjutab nende kasutusväärtust, tulevikku ja meie suhet oma ümbrusesse

J. Laidoneri komisjoni raportite kriitikast ja retseptsioonist seoses kindrali tegevusega Iraagis. I-II / Tanno Tilgar

Index Scriptorium Estoniae

Tilgar, Tanno, 1971-

2011-01-01

Suurbritannia ja Türgi poliitilistest vastuoludest 1925. aasta septembris, brittide initsiatiivist kristlaste deportatsiooni uurimiseks. Kaldealastest, nende suhetest türklaste ja kurdidega 1925. aasta septembri deportatsiooni kontekstis. Laidoneri komisjoni tegevuse taustast. Poliitiliste otsustajate ja uurijate arvamustest komisjoni aruannete kohta. Põhi- ja lisaraporti käsitlustest ja nende usaldusväärsusest. Piirikülade külastustest J. Laidoner poolt. Raporti osade ja nende kohta esitatud kriitiliste väidete analüüs. Kindlate (Iraagi) külade okupeerimisest Türgi militaarpostide ja patrullide poolt. Briti lennuväe lendudest üle nn. Brüsseli liini. Kristlaste deporteerimisest

Syntheses, structures and characterizations of three novel vanadium selenites with organically bonded copper/nickel complex

Science.gov (United States)

Qian, Cheng; Kong, Fang; Mao, Jiang-Gao

2016-06-01

A series of vanadium selenites covalently bonded with metal-organic complex, namely, Ni(2,2-bipy)2V2O4(SeO3)2 (1), Cu(2,2-bipy)V2O4(SeO3)2·0.5H2O (2) and Cu2(2,2-bipy)2V5O12(SeO3)2 (3) (2,2-bipy=2,2-bipyridine) have been hydrothermally synthesized and structurally characterized. They exhibit three different structural dimensions, from 0D cluster, 1D chain to 2D layer. Compound 1 features a 0D {Ni(2,2-bipy)2V2O4(SeO3)2}2 dimeric cluster composed of two {Ni(2,2-bipy)2}2+ moieties connected by the {V4O8(SeO3)4}4- cluster. Compound 2 shows a 1D {Cu(2,2-bipy)V2O4(SeO3)2}n chain in which the {Cu2(2,2-bipy)2}4+ moieties are bridged by the {V4O8(SeO3)4}4- clusters. Compound 3 displays a 2D structure consisted of mixed valence vanadium selenites layers {VIVVV4SeIV2O18}n4- and {Cu(2,2-bipy)}2+ complex moieties. The adjacent layers are further interconnected via π-π interactions between the 2,2-bipy ligands exhibiting an interesting 3D supramolecular architecture. Both compound 1 and 2 contain a new {V4O8(SeO3)4}4- cluster and compound 3 exhibits the first 2D vanadate polyhedral layer in vanadium selenites/tellurites with organic moieties.

Incorporation of sulfate or selenate groups into oxotellurates(IV). I. Calcium, cadmium, and strontium compounds

International Nuclear Information System (INIS)

Weil, Matthias; Shirkhanlou, Mahdi

2017-01-01

Seven new mixed oxochalcogenate compounds in the systems M II /X VI /Te IV /O/(H), (M II = Ca, Cd, Sr; X VI = S, Se) were obtained under hydrothermal conditions (210 C, one week). Crystal structure determinations based on single-crystal X-ray diffraction data revealed the compositions Ca 3 (SeO 4 )(TeO 3 ) 2 , Ca 3 (SeO 4 )(Te 3 O 8 ), Cd 3 (SeO 4 )(Te 3 O 8 ), Cd 3 (H 2 O)(SO 4 )(Te 3 O 8 ), Cd 4 (SO 4 )(TeO 3 ) 3 , Cd 5 (SO 4 ) 2 (TeO 3 ) 2 (OH) 2 , and Sr 3 (H 2 O) 2 (SeO 4 )(TeO 3 ) 2 for these phases. Peculiar features of the crystal structures of Ca 3 (SeO 4 )(TeO 3 ) 2 , Ca 3 (SeO 4 )(Te 3 O 8 ), Cd 3 (SeO 4 )(Te 3 O 8 ), Cd 3 (H 2 O)(SO 4 )(Te 3 O 8 ), and Sr 3 (H 2 O) 2 (SeO 4 )(TeO 3 ) 2 are metal-oxotellurate(IV) layers connected by bridging XO 4 tetrahedra and/or by hydrogen-bonding interactions involving hydroxyl or water groups, whereas Cd 4 (SO 4 )(TeO 3 ) 3 and Cd 5 (SO 4 ) 2 (TeO 3 ) 2 (OH) 2 crystallize as framework structures. Common to all crystal structures is the stereoactivity of the Te IV electron lone pair for each oxotellurate(IV) unit, pointing either into the inter-layer space, or into channels and cavities in the crystal structures. (copyright 2017 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

Rubidium selenatoindiates

International Nuclear Information System (INIS)

Kadoshnikova, N.V.; Dejchman, Eh.N.; Tananaev, I.V.

1977-01-01

Interaction of aqueous solutions of indium and rubidium selenates at 20 deg C has been investigated. From the experimental data obtained in studying solubility in the Rb 2 SeO 4 -In 2 (SeO 4 ) 3 -H 2 O system it follows that at n=[Rb 2 SeO 4 ]/[In 2 SeO 4 ) 3 ]( 4 ) 2 x4H 2 O is formed. The optimum conditions for obtaining this product are solutions with n=3-5 at increased acidity (approximately 5%H 2 SeO 4 ). RbIn(SeO 4 ) 2 x4H 2 O consists of negative biaxial crystals. Dehydration occurs in a single stage. The substance obtained is hydrolized in excess Rb 2 SO 4 with the formation of basic salts of variable composition. RbIn(SeO 4 ) 2 x4H 2 O has been investigated crystal-optically, thermographically, and roentgenographically

Le Cinematographe Ameerika kastmes / Tristan Priimägi

Index Scriptorium Estoniae

Priimägi, Tristan, 1976-

2007-01-01

French Connection : Prantsuse kino "The American Way" - Prantsuse filmikunsti suurteosed ja nende Ameerika uusversioonid kinos Sõprus 28. maist 1. juunini. Filmidest ja nende uusversioonidest : "Pepe le Moko" (Julien Duvivier, 1937) ja "Alžeerlased" (John Cromwell, 1938); "Metslane" (Jean Renoir, 1938) ja "Inimese iha" (Fritz Lang, 1938)

Identification of Dobrava, Hantaan, Seoul, and Puumala viruses by one-step real-time RT-PCR.

Science.gov (United States)

Aitichou, Mohamed; Saleh, Sharron S; McElroy, Anita K; Schmaljohn, C; Ibrahim, M Sofi

2005-03-01

We developed four assays for specifically identifying Dobrava (DOB), Hantaan (HTN), Puumala (PUU), and Seoul (SEO) viruses. The assays are based on the real-time one-step reverse transcriptase polymerase chain reaction (RT-PCR) with the small segment used as the target sequence. The detection limits of DOB, HTN, PUU, and SEO assays were 25, 25, 25, and 12.5 plaque-forming units, respectively. The assays were evaluated in blinded experiments, each with 100 samples that contained Andes, Black Creek Canal, Crimean-Congo hemorrhagic fever, Rift Valley fever and Sin Nombre viruses in addition to DOB, HTN, PUU and SEO viruses. The sensitivity levels of the DOB, HTN, PUU, and SEO assays were 98%, 96%, 92% and 94%, respectively. The specificity of DOB, HTN and SEO assays was 100% and the specificity of the PUU assay was 98%. Because of the high levels of sensitivity, specificity, and reproducibility, we believe that these assays can be useful for diagnosing and differentiating these four Old-World hantaviruses.

Efecto de budesonida sobre la densidad y el metabolismo óseo en niños asmáticos Effect of budesonide on bone density and bone metabolism of asthmatic children

Directory of Open Access Journals (Sweden)

Mariela Paoli de Valeri

2000-08-01

Full Text Available OBJETIVO: Determinar el efecto de la administración de budesonida inhalado sobre la densidad, el contenido mineral y el metabolismo óseo en niños asmáticos. MATERIAL Y MÉTODOS: Estudio transversal realizado de septiembre de 1996 a julio de 1997, en el que se estudiaron 38 niños y niñas de entre 6 y 11 años de edad, seleccionados de la consulta externa de neumonología infantil del Instituto Autónomo Hospital Universitario de Los Andes, Mérida, Venezuela. Se constituyeron tres grupos: nueve niños asmáticos tratados con budesonida inhalado (300 µg/día en promedio durante más de seis meses, (grupo A, 14 niños asmáticos que no recibieron tratamiento esteroideo (grupo B y 15 niños no asmáticos (grupo C. A todos se les practicó una evaluación ósea con marcadores de formación y resorción y con una medición de la densidad (DMO y el contenido mineral óseo (CMO. Se calcularon medidas de tendencia central y de dispersión, se realizó análisis de varianza, y se utilizaron las pruebas de Fisher y Scheffé para comparación de medias. RESULTADOS: En los grupos estudiados (A, B y C los niveles séricos de calcio fueron 9.1±0.3; 9.6±0.4; 9.3±0.6 mg/ml; los de osteocalcina fueron 14.8±4.6; 13.0±2.5; 11.9±3.4 ng/dl; los de telopéptido carboxiterminal del colágeno tipo I (ICTP fueron 19.6±16.5; 14.2±15.4; 13.0±18.3 µg/l; la DMO fue de 0.67±0.06; 0.68±0.06; 0.69±0.06 g/cm², y el CMO fue de 1 158.8±217.4; 1 106.4±256.1; 1 176.5±240.5 g, respectivamente. No hubo diferencias significativas entre los grupos. CONCLUSIONES: La administración de budesonida inhalada en dosis de 100 a 400 µg/día por un periodo de seis meses no produce modificaciones en la densidad y en el metabolismo óseo en niños asmáticos.OBJECTIVE: To assess the effect of inhaled budesonide on the mineral density, content and bone metabolism in children with asthma. MATERIAL AND METHODS: From September 1996 to July 1997, a cross-sectional study was

People in Ida-Virumaa : between two cultures / Ene Must

Index Scriptorium Estoniae

Must, Ene

2002-01-01

Peamistest probleemidest Ida-Virumaal, Sillamäel ja Narvas. Kohalike elanike seas läbi viidud Eesti sotsioloogide, Eesti integratsioonifondi ja Saar Polli uuringufirma uurimusest, kus uuriti nende sidemeid naaberriikidega, majanduslikku olukorda ning nende võimalikku elukoha muutust seoses majandusliku olukorraga Eestis ja liitumisega EL-iga. Kokkuvõtted uuringu tulemustest. Diagrammid

Alteración diagenética y preservación diferencial de los conjuntos óseos de la localidad arqueológica Paso Otero (provincia de Buenos Aires, Argentina

Directory of Open Access Journals (Sweden)

Nielsen-Marsh, C.

2000-12-01

Full Text Available The main goal of this paper is to provide a taphonomic analysis related to the process of physical and chemical alteration of the bone structure caused by post-burial processes or diagenesis. Particularly, this research focuses on four archaeological assemblages from the Paso Otero archaeological locality (Buenos Aires Province, Argentina. The study of diagenetic parameters such as porosity, crystallinity (IRSF, diagenetic carbonate content (C/P, calcite, protein content (%N and histology were applied to bone assemblages of archaeological sites recorded in «A» buried soil horizons located in ancient flood plains in the middle basin of the Quequén Grande River. The chronological span includes the late Pleistocene and the beginning of the late Holocene. The analysis of bone microstructure indicates a pattero of differential bone preservation even when the archaeological assemblages come from quite similar environmental depositional settings. Consequently, it is remarkable that every site has undergone a very particular taphonomic history regarding post-burial processes. The possible causes of theses differences are explored and discussed.El objetivo de este trabajo es el de determinar el grado de alteración diagenética de cuatro conjuntos óseos provenientes de tres sitios de la localidad arqueológica Paso Otero, ubicada en la cuenca media del río Quequén Grande (Provincia de Buenos Aires, Argentina. Los sitios analizados tienen una cronología comprendida entre el límite Pleistoceno/Holoceno y los inicios del Holoceno tardío. Específicamente, se caracteriza el grado de modificación post-depositacional de cada uno de los conjuntos de acuerdo a la aplicación de parámetros diagenéticos que incluyen porosidad, cristalinidad (IRSF, presencia de carbonatos diagenéticos (C/P, integridad histológica, contenido total de proteína (%N y calcita. Los resultados alcanzados indican que, a pesar de la similitud de los ambientes de

An Innovative Approach for online Meta Search Engine Optimization

OpenAIRE

Manral, Jai; Hossain, Mohammed Alamgir

2015-01-01

This paper presents an approach to identify efficient techniques used in Web Search Engine Optimization (SEO). Understanding SEO factors which can influence page ranking in search engine is significant for webmasters who wish to attract large number of users to their website. Different from previous relevant research, in this study we developed an intelligent Meta search engine which aggregates results from various search engines and ranks them based on several important SEO parameters. The r...

Potentiometric titration of selenic and telluric acids with titanium(III) chloride in nonaqueous solvents

International Nuclear Information System (INIS)

Yoshimura, Chozo; Miyamoto, Kiyoshige

1985-01-01

Selenic and Telluric acids were titrated potentiometrically with titanium(III) chloride solution by using Pt-Cu · Hg bimetallic electrodes in nonaqueous solvents such as N, N-dimethyl-formamide (DMF), dimethyl sulfoxide (DMSO), isopropyl alcohol (IPA) and the mixtures of these solvents. It was found that selenic and telluric acids were titrated directly at room temperature in DMF solution without hydrochloric acid. The molar ratios of selenic and telluric acids to titanium(III) chloride was 1 : 6. However, the corresponding reactions to SeO 4 2- → SeO 3 2- or TeO 4 2- → TeO 3 2- were not confirmed in the titration curve in DMF. In the titration of selenic acid in mixed solvents of DMF and IPA in 1 : 1 or 1 : 2 ratio, two steps were observed. The first and the second steps were appeared on the titration curve at molar ratios of 1 : 2 and 1 : 6, respectively. It was interpreted that the first step corresponded to the intermediate reaction of SeO 4 2- → SeO 3 2- . Mixed solution of selenic and telluric acids were determined by the proposed method. Three steps were observed on the titration curve. It was interpreted that the first, second and third steps corresponded to the reaction of SeO 4 2- → SeO 3 2- , SeO 3 2- → Se(0), and TeO 4 2- → Te(0), respectively. Less than 5 % of water gave no influence on the titration. (author)

Studies of rubidium selenate with secondary phase of RbOH under humidified reducing atmosphere

International Nuclear Information System (INIS)

Beyribey, Berceste; Hallinder, Jonathan; Poulsen, Finn Willy; Bonanos, Nikolaos; Mogensen, Mogens

2012-01-01

Highlights: ► Degradation of Rb 2 SeO 3 and Rb 2 SeO 4 to form RbOH provide protonic conductivity. ► The conductivity increases by increasing temperature. ► The highest conductivity value of 2.01·10 −4 S cm −1 is observed at 317 °C. ► The work may state conductivity rise in solid acid electrolytes upon decomposition. - Abstract: The high temperature properties of Rb 2 SeO 4 have been studied by calorimetry, impedance spectroscopy and X-ray powder diffraction. As synthesized, Rb 2 SeO 4 includes a second phase of Rb 2 SeO 3 , which can be eliminated upon heating the compound. As expected, no conductivity is observed in dry (pH 2 O 2 O = 0.1 bar) air at 176 °C, the conductivity increases sharply from 8.6·10 −8 to 1.7·10 −6 S cm −1 . Under humidified (pH 2 O = 0.1 bar) reducing atmosphere (9%H 2 in N 2 ), the conductivity increases to 2.0·10 −4 S cm −1 at 317 °C. Degradation of Rb 2 SeO 3 and Rb 2 SeO 4 to form RbOH, which is known as a proton conductor, are thought to be responsible for the observed conductivity in humidified atmospheres. Our observations may explain the conductivity rise in other solid acid electrolytes, including sulfate and selenate groups, around their decomposition temperatures, in humidified atmospheres.

Pseudomonas moraviensis subsp. stanleyae, a bacterial endophyte of hyperaccumulator Stanleya pinnata, is capable of efficient selenite reduction to elemental selenium under aerobic conditions.

Science.gov (United States)

Staicu, L C; Ackerson, C J; Cornelis, P; Ye, L; Berendsen, R L; Hunter, W J; Noblitt, S D; Henry, C S; Cappa, J J; Montenieri, R L; Wong, A O; Musilova, L; Sura-de Jong, M; van Hullebusch, E D; Lens, P N L; Reynolds, R J B; Pilon-Smits, E A H

2015-08-01

To identify bacteria with high selenium tolerance and reduction capacity for bioremediation of wastewater and nanoselenium particle production. A bacterial endophyte was isolated from the selenium hyperaccumulator Stanleya pinnata (Brassicaceae) growing on seleniferous soils in Colorado, USA. Based on fatty acid methyl ester analysis and multi-locus sequence analysis (MLSA) using 16S rRNA, gyrB, rpoB and rpoD genes, the isolate was identified as a subspecies of Pseudomonas moraviensis (97.3% nucleotide identity) and named P. moraviensis stanleyae. The isolate exhibited extreme tolerance to SeO3(2-) (up to 120 mmol l(-1)) and SeO4(2-) (>150 mmol l(-1)). Selenium oxyanion removal from growth medium was measured by microchip capillary electrophoresis (detection limit 95 nmol l(-1) for SeO3(2-) and 13 nmol l(-1) for SeO4(2-)). Within 48 h, P. moraviensis stanleyae aerobically reduced SeO3(2-) to red Se(0) from 10 mmol l(-1) to below the detection limit (removal rate 0.27 mmol h(-1) at 30 °C); anaerobic SeO3(2-) removal was slower. No SeO4(2-) removal was observed. Pseudomonas moraviensis stanleyae stimulated the growth of crop species Brassica juncea by 70% with no significant effect on Se accumulation. Pseudomonas moraviensis stanleyae can tolerate extreme levels of selenate and selenite and can deplete high levels of selenite under aerobic and anaerobic conditions. Pseudomonas moraviensis subsp. stanleyae may be useful for stimulating plant growth and for the treatment of Se-laden wastewater. © 2015 The Society for Applied Microbiology.

75 FR 38452 - Fisheries of the Exclusive Economic Zone Off Alaska; Central Gulf of Alaska License Limitation...

Science.gov (United States)

2010-07-02

... for the Southeast Outside District (SEO), Central Gulf of Alaska which includes the West Yakutat...). This proposed action does not include modifications to SEO endorsed licenses because fishing in this...

Evolución de los factores de posicionamiento web y adaptación de las herramientas de optimización

Directory of Open Access Journals (Sweden)

Morato, Jorge

2013-09-01

Full Text Available Search Engine Optimization (SEO tools are designed to analyze and optimize resources regarding positioning factors. Web positioning techniques are applied in order to improve the relevancy of web resources. Webmasters usually use SEO tools to analyze a web site according to some positioning factor. They are required to be updated to achieve two basic goals: to increase the user’s satisfaction while searching the web and to decrease web spamming. We have studied the trends that affect positioning algorithms and optimization techniques. Several SEO tools were analysed in order to learn which functionalities have been implemented. Furthermore, an experiment was performed to test how the positioning factors help optimize the results and if these factors are present in the functionalities found in the SEO tools. Finally, a literature review was carried out to detect future trends in search engines’ algorithms. Results show that SEO tools help in the optimization process but to an insufficient degree; therefore the algorithm’s evolution study suggests that there is a need for major updates in the short term.Las herramientas de optimización web, Search Engine Optimization (SEO, se utilizan para analizar y mejorar los sitios web en relación a distintos factores de posicionamiento. Esta investigación estudia la evolución de las estrategias de posicionamiento web y analiza la adaptación de las herramientas de optimización a estos factores. Además, se estudian qué factores de posicionamiento están presentes en las herramientas SEO más populares. En la fase experimental se analiza el grado en que las estrategias de optimización mejoran el posicionamiento, y en qué medida se encuentran esas funcionalidades en las herramientas SEO. Adicionalmente se han analizado foros y blogs oficiales para descubrir nuevas pautas de evolución de los motores de búsqueda y el grado en que las herramientas SEO pueden adaptarse a dichos cambios. Aunque estas

S&P: meie kohus oli USA riigireitingut alandada / Heiki Suurkask

Index Scriptorium Estoniae

Suurkask, Heiki, 1972-

2011-01-01

Standard & Poor´s langetas USA reitingut tasemelt AAA tasemeni AA+. Agentuuri esindaja sõnul oli reitingu alandamine nende kohustus, sest nende arvates oli USA senine reiting liiga kõrge. Hiina nõuab, et USA hakkaks oma võlaprobleemiga tegelema. AAA reiting on nüüd vaid 15 riigil või territooriumil maailmas

Sulphur extended oil sand mix : paving material for lower transport cost and CO{sub 2} reduction : ASRL Syncrude research project 1995

Energy Technology Data Exchange (ETDEWEB)

Aquin d' , G. [Con-Sul Inc., Missoula, MT (United States)

2010-07-01

This power point presentation discussed the use of sulphur-enhanced oil sands (SEOS) as a paving mixture. Sulphur has been added to asphaltic bitumen paving processes since the 1850s. Research into sulphur additions has been conducted by various Canadian industry members and institutions. A study in 1995 investigated the use of SEOS as a temporary paving material. The benefits of using SEOS included lower capital costs and lower greenhouse gas (GHG) impacts. Increases in equipment efficiency were also observed. Researchers are now developing mixing protocols and testing various paving materials in relation to temperature regimes and percentages of sulphur. Sand, limestone, coke, and rubber additions are also being evaluated, as well as the behaviour of SEOS in freeze-thaw cycles. To date, the studies have indicated that a 30 percent sulphur, 10 percent sand, and 60 percent oil sand mixture provides optimal compression and behaviour under freeze-thaw conditions. The use of SEOS paving at oil sands mine sites will reduce truck and road maintenance as well as reduce fuel emissions and consumption rates. tabs., figs.

Structure and ionic conductivity of block copolymer electrolytes over a wide salt concentration range

Science.gov (United States)

Chintapalli, Mahati; Le, Thao; Venkatesan, Naveen; Thelen, Jacob; Rojas, Adriana; Balsara, Nitash

Block copolymer electrolytes are promising materials for safe, long-lasting lithium batteries because of their favorable mechanical and ion transport properties. The morphology, phase behavior, and ionic conductivity of a block copolymer electrolyte, SEO mixed with LiTFSI was studied over a wide, previously unexplored salt concentration range using small angle X-ray scattering, differential scanning calorimetry and ac impedance spectroscopy, respectively. SEO exhibits a maximum in ionic conductivity at twice the salt concentration that PEO, the homopolymer analog of the ion-containing block, does. This finding is contrary to prior studies that examined a more limited range of salt concentrations. In SEO, the phase behavior of the PEO block and LiTFSI closely resembles the phase behavior of homopolymer PEO and LiTFSI. The grain size of the block copolymer morphology was found to decrease with increasing salt concentration, and the ionic conductivity of SEO correlates with decreasing grain size. Structural effects impact the ionic conductivity-salt concentration relationship in block copolymer electrolytes. SEO: polystyrene-block-poly(ethylene oxide); also PS-PEO LiTFSI: lithium bis(trifluoromethanesulfonyl imide

Mida õpetab Sakala saaga? = What lessons can be learned from the Sakala saga? / Toomas Paaver

Index Scriptorium Estoniae

Paaver, Toomas, 1976-

2008-01-01

Sakala keskuse loost, avaliku ja erasektori koostööst. Vaatluse all on Sakala saaga kolm erinevast teemast - ehitusprojekti ja planeeringu seos, linnaruumi ja asjaõiguslepingute seos, otsustajate volitused. Suunad õigusloome arenguks

Effects of mercury and selenite on δ-aminolevulinate dehydratase activity and on selected oxidative stress parameters in rats

International Nuclear Information System (INIS)

Perottoni, Juliano; Lobato, L.P.; Silveira, Aline; Rocha, J.B.T.; Emanuelli, Tatiana

2004-01-01

The present study evaluates the effects of Na 2 SeO 3 and HgCl 2 on kidney and liver of adult rats. In vivo, HgCl 2 (17 μmol/kg, sc) reduced ascorbic acid levels in liver (∼15%), whereas in kidney it reduced ALA-D activity (∼60%) and ascorbic acid levels (∼35%) and increased TBARS content (∼50%). Na 2 SeO 3 (17 μmol/kg, sc) exposure increased the content of nonprotein thiol groups in liver (35-60%) and kidney (∼50-160%), partially prevented mercury-induced ALA-D inhibition in kidney, and completely prevented a mercury-induced increase of TBARS content and decrease of ascorbic acid levels in kidney. In vitro, HgCl 2 and Na 2 SeO 3 inhibited renal and hepatic ALA-D, while HgCl 2 increased TBARS in renal and hepatic tissue preparations. Na 2 SeO 3 increased the rate of glutathione oxidation in vitro. Results indicated that Na 2 SeO 3 protected against HgCl 2 effects in vivo (prevention of mercury interaction with thiol groups and of mercury-induced oxidative damage). In vitro, Na 2 SeO 3 did not prevent mercury effects, but potentiated ALA-D inhibition by mercury, probably due to its ability to oxidize thiol groups

Suitsusaun pürib UNESCO nimekirja / Rein Raudvere

Index Scriptorium Estoniae

Raudvere, Rein, 1955-

2010-01-01

Võrulased soovivad, et nende kodukandis tänini laialt levinud suitsusaun pääseks UNESCO vaimse kultuuripärandi nimekirja. 12. novembril saunakonverentsil Väimelas kutsusid võrulased koostööle kõiki kogukondi (setud, mulgid), kelle meelest nende suitsusaunakultuur vajab uurimist, väärtustamist ja kaitset. Eesti vaimse kultuuripärandi nimistust

Blank ja Jeron (sero.org) / Joachim Blank, Karl Heinz Jeron ; interv. Tilman Baumgärtel

Index Scriptorium Estoniae

Blank, Joachim

2006-01-01

Nime sero.org all esinenud saksa kunstnikepaarist Joachim Blankist (sünd. 1963) ja Karl Heinz Jeronist ning nende loomingust, intervjuu kunstnikega nende Berliini ateljees 10. II 2000. Saksa võrgukunsti edendamisest rühmituste Lux Logis, Handshake ja Internationale Stadt koosseisus, jututubadest, teostest "Dump your trash", "Re-M@il", installatsioonidest "re: represent", "Scanner +++", "sign.post" ja muust

MoKS teistes koostööprojektides / John Grzinich

Index Scriptorium Estoniae

Grzinich, John

2005-01-01

13. III Genfis toimunud helikunstiüritusest "VernalFLUX / Kevadvool", millest Eestist võtsid osa MoKS'i koordinaatorid John Grzinich ja Evelyn Müürsepp, nende performance'ist "Maaheli. Unustatud unistused". Uuest organisatsioonist Claudmirror, mis on välja andnud seitse CD-ROM-i, nende seas John Grzinichi CD-ROM-i "Võrdsed ja kauged jooned"

Kooperatiivide mõningate tegevusalade reguleerimise kohta vastavalt NSV Liidu seadusele "Kooperatsioonist NSV Liidus"

Index Scriptorium Estoniae

1989-01-01

Lisatud: Vabariigi tootmis- ja teeninduskooperatiivide tegevuses kehtestatavate täiendavate piirangute loetelu ; nende tegevusalade loetelu, millega kooperatiividel ei ole õigust tegelda ja nende tegevusalade loetelu, millega kooperatiivid võivad tegeleda ainult lepingute alusel, mis on sõlmitud ettevõtete, organisatsioonide ja asutustega, kellele need tegevusalad on põhitegevusaladeks (NSVL MN määrus 29. dets. 1988 nr. 1468)

Probing the Influence of Acidity and Temperature to Th(IV) on Hydrolysis, Nucleation, and Structural Topology.

Science.gov (United States)

Lin, Jian; Qie, Meiying; Zhang, Linjuan; Wang, Xiaomei; Lin, Yuejian; Liu, Wei; Bao, Hongliang; Wang, Jianqiang

2017-11-20

Systematic control of the molar ratio between thorium hydroxides and selenic acid and their reaction temperature under hydrothermal conditions results in four novel thorium-based selenate complexes, namely, [Th 8 O 4 (OH) 8 (SeO 4 ) 6 (H 2 O) 16 ]·(SeO 4 ) 2 ·13H 2 O (Th-1), [Th 8 O 4 (OH) 8 (SeO 4 ) 8 (H 2 O) 13 ]·7H 2 O (Th-2), Th(OH) 2 (SeO 4 )H 2 O (Th-3), and Th 3 (SeO 4 ) 6 (H 2 O) 6 ·2.5H 2 O (Th-4), as well as the thorium mixed selenite selenate compound Th(SeO 3 )(SeO 4 ) (Th-5). Smaller [H 2 SeO 4 ]/[Th(IV)] ratio or lower temperature give rise to the formation of octameric [Th 8 (μ 3 -O) 4 (μ 2 -OH) 8 ] 16+ cores in Th-1/Th-2 and infinite [Th(μ 2 -OH) 2 H 2 O] 2+ chains in Th-3, respectively. Increasing the [H 2 SeO 4 ]/[Th(IV)] ratio or elevating the temperature generates a microporous (11.3 Å voids) open-framework Th-4, a monomeric thorium species without oxo/hydroxyl ligands, and a three-dimensional thorium structure Th-5. Formation of these compounds suggests that variables including acidity and temperature play a critical role in the hydrolysis and oligomerization of Th IV ions. Increasing acidity limits the deprotonation of water molecules and formation of nucleophilic hydroxo/oxo-aquo Th species, and high temperature appears to suppress the olation/oxolation hydrolysis reactions, which in both ways limit the formation of the thorium oligomers.

ROLE AND IMPORTANCE OF SEARCH ENGINE OPTIMIZATION

OpenAIRE

Gurneet Kaur

2017-01-01

Search Engines are an indispensible platform for users all over the globe to search for relevant information online. Search Engine Optimization (SEO) is the exercise of improving the position of a website in search engine rankings, for a chosen set of keywords. SEO is divided into two parts: On-Page and Off-Page SEO. In order to be successful, both the areas require equal attention. This paper aims to explain the functioning of the search engines along with the role and importance of search e...

Crystal structure and dynamics of K2-x(NH4)xSeO4 mixed crystals studied by x-ray and neutron scattering

International Nuclear Information System (INIS)

Smirnov, L.S.; Natkaniec, I.; Loose, A.

2006-01-01

The K 2-x (NH 4 ) x SeO 4 mixed crystals have been studied by powder X-ray and neutron diffraction and inelastic incoherent neutron scattering in a wide temperature range from 300 to 16 K. No phase transition is observed in (NH 4 ) 2 SeO 4 in the range from room temperature to 20 K. The reorientation potential barriers of ammonium ions in the K 2-x (NH 4 ) x SeO 4 mixed crystals increase with the increasing concentration of ammonium ions

[Kreem, Juhan. Sketches of a Clerk. Pen-and-ink Drawings in the Margins of the Medieval Accoung Books of Reval (Tallinn)] / Anu Mänd

Index Scriptorium Estoniae

Mänd, Anu, 1968-

2008-01-01

Arvustus: Kreem, Juhan. Sketches of a Clerk. Pen-and-ink Drawings in the Margins of the Medieval Accoung Books of Reval (Tallinn). (Krems, 2006). Juhan Kreemi raamat käsitleb Tallinna rae keskaegsetes arveraamatutes leiduvaid sulejoonistusi. Autor on välja selgitanud nende, esmapilgul juhuslikena näivate joonistuste otstarbe ning püüdnud nende kaudu avada tolleaegsete linnaametnike mõttemalle

Selenate as a novel ligand for keplerate chemistry. New {W72Mo60} keplerates with selenates inside the cavity.

Science.gov (United States)

Korenev, Vladimir S; Abramov, Pavel A; Vicent, Cristian; Zhdanov, Artem A; Tsygankova, Alphiya R; Sokolov, Maxim N; Fedin, Vladimir P

2015-05-21

The synthesis and characterization of three novel keplerate-type compounds containing the {W72Mo60} mixed-metal core are reported. Complexes (NH4)72[{W6O21(H2O)6}12{Mo2O4(SeO4)}30]·150H2O·6(NH4)2SeO4 (1a) and (NH4)25(NH2Me2)47[{W6O21(H2O)6}12{Mo2O4(SeO4)}30]·130H2O·3(NH4)2SeO4 (1b) were prepared by ligand substitution from the acetate anionic complex [{W6O21(H2O)5(CH3COO)0.5}12{Mo2O4(CH3COO)}30](48-) and selenate. The selenate anions in keplerate ions [{W6O21(H2O)6}12{Mo2O4(SeO4)}30](72-) are very labile and easily aquate with the formation of [{W6O21(H2O)6}12{Mo2O4}30(SeO4)20(H2O)20](52-), which was isolated as (NH4)20(NH2Me2)32[{W6O21(H2O)6}12{Mo2O4}30(SeO4)20(H2O)20]·150H2O (2) and structurally characterized. In the crystal structure of 2 selenate has several coordination modes, preferentially bonding to the {Mo2O4}(2+) units, and, additionally, to the {(W)W5} pentagonal blocks. The compounds have been characterized by elemental analysis, Raman, IR and (77)Se NMR spectroscopy, and by ESI mass spectrometry. Capillary electrophoresis was used for characterization of keplerates in solution for the first time.

P-proteins in Arabidopsis are heteromeric structures involved in rapid sieve tube sealing.

Science.gov (United States)

Jekat, Stephan B; Ernst, Antonia M; von Bohl, Andreas; Zielonka, Sascia; Twyman, Richard M; Noll, Gundula A; Prüfer, Dirk

2013-01-01

Structural phloem proteins (P-proteins) are characteristic components of the sieve elements in all dicotyledonous and many monocotyledonous angiosperms. Tobacco P-proteins were recently confirmed to be encoded by the widespread sieve element occlusion (SEO) gene family, and tobacco SEO proteins were shown to be directly involved in sieve tube sealing thus preventing the loss of photosynthate. Analysis of the two Arabidopsis SEO proteins (AtSEOa and AtSEOb) indicated that the corresponding P-protein subunits do not act in a redundant manner. However, there are still pending questions regarding the interaction properties and specific functions of AtSEOa and AtSEOb as well as the general function of structural P-proteins in Arabidopsis. In this study, we characterized the Arabidopsis P-proteins in more detail. We used in planta bimolecular fluorescence complementation assays to confirm the predicted heteromeric interactions between AtSEOa and AtSEOb. Arabidopsis mutants depleted for one or both AtSEO proteins lacked the typical P-protein structures normally found in sieve elements, underlining the identity of AtSEO proteins as P-proteins and furthermore providing the means to determine the role of Arabidopsis P-proteins in sieve tube sealing. We therefore developed an assay based on phloem exudation. Mutants with reduced AtSEO expression levels lost twice as much photosynthate following injury as comparable wild-type plants, confirming that Arabidopsis P-proteins are indeed involved in sieve tube sealing.

P-proteins in Arabidopsis are heteromeric structures involved in rapid sieve tube sealing

Directory of Open Access Journals (Sweden)

Stephan B Jekat

2013-07-01

Full Text Available Structural phloem proteins (P-proteins are characteristic components of the sieve elements in all dicotyledonous and many monocotyledonous angiosperms. Tobacco P-proteins were recently evidenced to be encoded by the widespread SEO gene family, and tobacco SEO proteins were shown to be directly involved in sieve tube sealing thus preventing the loss of photosynthate. Analysis of the two Arabidopsis SEO proteins (AtSEOa and AtSEOb indicated that the corresponding P-protein subunits do not act in a redundant manner. However, there are still pending questions regarding the interaction properties and specific functions of AtSEOa and AtSEOb as well as the general function of structural P-proteins in Arabidopsis. In this study, we characterized the Arabidopsis P-proteins in more detail. We used in planta bimolecular fluorescence complementation assays to confirm the predicted heteromeric interactions between AtSEOa and AtSEOb. Arabidopsis mutants depleted for one or both AtSEO proteins lacked the typical P-protein structures normally found in sieve elements, underlining the identity of AtSEO proteins as P-proteins and furthermore providing the means to determine the role of Arabidopsis P-proteins in sieve tube sealing. We therefore developed an assay based on phloem exudation. Mutants with reduced AtSEO expression levels lost twice as much photosynthate following injury as comparable wild-type plants, confirming that Arabidopsis P-proteins are indeed involved in sieve tube sealing. 

Study of chemical interaction induced by ionizing radiation poly(dimethylsiloxane-g-ethylene oxide) in the poly(n-vinyl-2-pyrrolidone) and agar membrane; Estudo da interacao quimica do poli(dimetilsiloxano-g-oxido de etileno) na membrana de poli(n-vinil-2-pirrolidona) e agar induzida com radiacao ionizante

Energy Technology Data Exchange (ETDEWEB)

Bazzi, Aurea de Souza

1999-07-01

Membrane composed by poly(N-vinyl-2-pyrrolidone) (PVP) and agar was formulated with and without poly(dimethylsiloxane-g-ethylene oxide) (SEO) irradiated with electron beam with doses between 10-50 kGy. The radiolytic behaviour of each component, PVP, agar and SEO, was studied when irradiated by gamma ray, in the absence and presence of air and water, by electron paramagnetic resonance (EPR) at 77 K. The chemical interaction of SEO with PVP/agar membrane was investigated by: infrared spectroscopy, energy dispersive X-ray fluorescence, dynamic-mechanical analysis, scanning electron microscopy, gel and swelling analysis. The cytotoxicity of the PVP/agar/SEO membrane was evaluated by cellular suppression. The membrane radicals from PVP ({phi}NC.) and from water (H., OH. and H{sub 2}O) was observed by EPR at 77K. The agar radicals formed by hydrogen abstraction of C{sub 1} and C{sub 3} of {beta}-D-galactose and/or C{sub 1} and C{sub 4} of {alpha}-L-galactose, reacted primarily with water radicals in despite of they also took part in the membrane by chemical bond. The radicals from SEO (.CH{sub 2}{approx}, .Si{approx}, .O{approx}) participated in the inter and intramolecular crosslinking as co-crosslinker by polymeric bridge. The co-crosslinked action depended on its concentration associated to PVP concentration. The presence op acrylates increases the tensile break of the PVP/agar/SEO membrane significantly. (author)

NCI calculations for understanding a physical phase transition in (C6H14N2)[Mn(H2O)6](SeO4)2

Science.gov (United States)

Naïli, Houcine; François, Michel; Norquist, Alexander J.; Rekik, Walid

2017-12-01

An organically templated manganese selenate, (C6H14N2)[Mn(H2O)6](SeO4)2, has been synthesized by slow evaporation and crystallographically characterized. The title compound crystallizes at room temperature in the monoclinic centrosymmetric space group P21/n, with the following unit cell parameters: a = 7.2373(4) Å; b = 12.5600(7) Å; c = 10.1945(7) Å; β = 91.155(4)°, V = 926.50(10) Å3and Z = 2. Its crystal structure is built of manganese(II) cations coordinated by six water molecules in octahedral geometry, disordered dabcodiium cations and selenate anions, resulting in an extensive hydrogen-bonding network. Differential scanning calorimetry (DSC) measurement indicated that the precursor undergoes a reversible phase transition at about 216 and 218 K during the cooling and heating processes respectively. Below this temperature the title compound is noncentrosymmetric with space group P21 and lattice parameters a = 7.2033(8) Å; b = 12.4981(13) Å; c = 10.0888(11) Å; β = 91.281(2)°, V = 908.04(17) Å3 and Z = 2. The disorder-order transformation of the C atoms of (C6H14N2)2+ cation may drive the structural phase transition. The low temperature phase obtained by breaking symmetry presents a fully ordered structure. The noncovalent interaction (NCI) method was used not only to locate, quantify, and visualize intermolecular interactions in the high and low temperature phases but also to confirm the phase transition detected by DSC measurement. The thermal decomposition of this new compound proceeds through four stages giving rise to the manganese oxide as final product at 850 °C.

Skype'i loojad : teeme, mida tahame! / interv. Kristjan Otsmann

Index Scriptorium Estoniae

2007-01-01

Skype'i loojad Jaan Tallinn, Toivo Annust, Ahti Heinla ja Priit Kasesalu, kes on koondunud investeerimisfirmasse Ambient Sound Investments, ning firma tegevjuht Tauno Tats vastavad küsimustele, mis puudutavad nende raha investeerimist. A. Heinla sõnul ei ole nende investeerimise eesmärk teenida üha rohkem raha, sisuline eesmärk on investeerida tehnoloogiasse, edendada tehnoloogiat kogu maailmas. Kommenteerivad Allan Martinson ja Jüri Kaljundi

Rasa Smite ja Raitis Smits (E-LAB) / Rasa Smite, Raitis Smits ; interv. Tilman Baumgärtel

Index Scriptorium Estoniae

Smite, Rasa

2006-01-01

Läti kunstnikest Rasa Smitest (sünd. 1969) ja Raitis Smitsist (sünd. 1966), nende loomingust, vestlus kunstnikega 2000. a. Amsterdamis. 1996. a. E-LAB-i rajanud kunstnikud toodavad Internetis heliteoseid. Koos Janis Garancsiga asutasid 1997. a. võrguaudio loojate jaoks meililoendi xchange. Nende võrguaudioprogrammi "Ozone" saadetakse Riiast Interneti kaudu eetrisse üle terve maailma. Annavad välja ajakirja "Acoustic.Space"

Benchmark luchthavengelden en overheidsheffingen : Voor de jaren 2003, 2008, 2013, 2014 en 2015

NARCIS (Netherlands)

Zuidberg, J.

SEO analyseert in deze benchmarkstudie in opdracht van het Ministerie van Infrastructuur en Milieu de hoogte van de luchthavengelden en overheidsheffingen op Schiphol en tien concurrerende luchthavens. Daarnaast werpt SEO onder meer een blik op de tariefdifferentiaties in de luchthavengelden die de

Search Engine Marketing (SEM): Financial & Competitive Advantages of an Effective Hotel SEM Strategy

OpenAIRE

Leora Halpern Lanz

2015-01-01

Search Engine Marketing and Optimization (SEO, SEM) are keystones of a hotels marketing strategy, in fact research shows that 90% of travelers start their vacation planning with a Google search. Learn five strategies that can enhance a hotels SEO and SEM strategies to boost bookings.

Hybrid titanium dioxide/PS-b-PEO block copolymer nanocomposites based on sol-gel synthesis

International Nuclear Information System (INIS)

Gutierrez, J; Tercjak, A; Garcia, I; Peponi, L; Mondragon, I

2008-01-01

The poly(styrene)-b-poly(ethylene oxide) (SEO) amphiphilic block copolymer, with two different molecular weights, has been used as a structure directing agent for generating nanocomposites of TiO 2 /SEO via the sol-gel process. SEO amphiphilic block copolymers are designed with a hydrophilic PEO-block which can interact with inorganic molecules, as well as a hydrophobic PS-block which builds the matrix. The addition of different amounts of sol-gel provokes strong variations in the self-assembled morphology of TiO 2 /SEO nanocomposites with respect to the neat block copolymer. As confirmed by atomic force microscopy (AFM), TiO 2 /PEO-block micelles get closer, forming well-ordered spherical domains, in which TiO 2 nanoparticles constitute the core surrounded by a corona of PEO-blocks. Moreover, for 20 vol% sol-gel the generated morphology changes to a hexagonally ordered structure for both block copolymers. The cylindrical structure of these nanocomposites has been confirmed by the two-dimensional Fourier transform power spectrum of the corresponding AFM height images. Affinity between titanium dioxide precursor and PEO-block of SEO allows us to generate hybrid inorganic/organic nanocomposites, which retain the optical properties of TiO 2 , as evaluated by UV-vis spectroscopy

77 FR 22683 - Fisheries of the Exclusive Economic Zone Off Alaska; Gulf of Alaska; Final 2012 and 2013 Harvest...

Science.gov (United States)

2012-04-17

.... Chirikof (620) 0.0031 7,282 23 Kodiak (630) 0.0002 8,986 2 Annual WYK (640) 0.0000 3,244 0 SEO (650) 0.0000... 293 0 Demersal shelf rockfish Annual SEO 0.0000 293 0 Thornyhead rockfish Annual W 0.0047 150 1 C 0...

Nanocrystalline hydroxyapatite doped with selenium oxyanions: A new material for potential biomedical applications

International Nuclear Information System (INIS)

Kolmas, Joanna; Oledzka, Ewa; Sobczak, Marcin; Nałęcz-Jawecki, Grzegorz

2014-01-01

Selenium-substituted hydroxyapatites containing selenate SeO 4 2− or selenite SeO 3 2− ions were synthesized using a wet precipitation method. The selenium content was determined by atomic absorbance spectrometry. The raw, unsintered powders were also characterized using powder X-ray diffraction, middle-range FT-IR spectroscopy and transmission electron microscopy with energy-dispersive X-ray spectroscopic microanalysis. The synthesized apatites were found to be pure and nanocrystalline with a crystal size similar to that in bone mineral. The incorporation of selenium oxyanions into the crystal lattice was confirmed. The toxicity of hydroxyapatites containing selenite or selenate ions was evaluated with a protozoan assay and bacterial luminescence test. - Highlights: • We synthesized and analyzed hydroxyapatites doped with selenium oxyanions. • We used various analytical methods, i.e. XRD, TEM, AAS and FT-IR. • We confirmed incorporation of SeO 3 2− and SeO 4 2− into the crystal lattice. • The toxicity of the materials was studied

Vietnes optimizācijas stratēģija meklētājprogrammu reitinga paaugstināšanai

OpenAIRE

Grišāne, Lāsma

2012-01-01

Maģistra darba izvēlētā tēma ir „Vietnes optimizācijas stratēģija meklētājprogrammu reitinga paaugstināšanai” (turpmāk tekstā SEO stratēģija). Maģistra darba mērķis ir izpētīt SEO izmantošanas iespējas vietņu popularizēšanai, reitinga paaugstināšanai un izstrādāt piemērotu SEO stratēģiju konkrētam uzņēmumam. Vietnes optimizācijas stratēģijas izstrāde meklētājprogrammu reitinga paaugstināšanai ir nozīmīga uzņēmuma reklāmas nodrošināšanai. Pirmkārt, īstenojot SEO stratēģiju tiek nodrošināta ...

Use of INAA to study the determination of Se, Th, Zn, Co and Fe levels of yeast cells

International Nuclear Information System (INIS)

Czauderna, M.; Turska, M.; Sitowska, B.

1996-01-01

Differences in the effects of seleno-cystine (CySe) 2 , glutathione (GSH), Se(IV) [as SeO 2 ] and Se(VI) [as (NH 4 ) 2 SeO 4 ] on Th(IV) [as Th(CO 3 ) 2 ] uptake by the cells, Saccharomyces cerevisiae, have been studied. The Th, Se, Zn, Co and Fe levels of the yeast cells were measured by instrumental neutron activation analysis. Results obtained show that the addition of Th alone to the culture medium resulting in the Th content of the cells and the Th level of the yeast slightly decreased during the incubation. The addition of Th in combination with GSH produced a higher decrease of the Th content in comparison with the single Th dosage. During the initial 48 h of the incubation the presence of Th and Se(VI) in the medium produced a decrease of the Th level of the cells in comparison with the addition of Th alone. (CySe) 2 or SeO 2 does not produce a regular change of the Th level of the cells. Th uptake by the yeast influenced the retention of Se in the cells. In fact, the Se levels of the cells were always significantly higher when the yeast was incubated in the medium containing Th and SeO 2 or Se(VI). The enhance in the Se level of the cells rises increasing concentrations of SeO 2 in the culture medium. Th decreased the Se content of the yeast when the cells were incubated in the medium containing (CySe) 2 and Th. GSH supply in combination with Th and SeO 2 produced a very significant enhancement of the Se abundance in the cells in comparison with the single addition of SeO 2 . Se-compounds and/or Th dosages affected the Zn, Co and Fe contents of the cells. The Fe level of the yeast is below the quantitative detection limit of Fe when the cells were incubated in the medium containing Th. (Author)

Tulemuslik juhtimine ebatavaliselt keerulistes haridusoludes

Directory of Open Access Journals (Sweden)

Andy Hargreaves

2015-04-01

Full Text Available Artiklis antakse ülevaade uurimistulemustest, mis käsitlevad edukalt toimivate organisatsioonide juhtimist kolmes valdkonnas. Organisatsioonid kaasati valimisse eduka toimivuse alusel, võttes arvesse nende kesiseid tulemusi minevikus, võrdlust teiste sarnaste koolidega ning toimimist piiratud ressursside ja keeruliste tingimuste kontekstis. Artiklis keskendutakse nende nelja kooli juhtimisele, mis vastasid valimi kriteeriumitele. Tulemuste selgitused seostatakse Eesti PISA uuringu heade akadeemiliste tulemustega. Artiklis näidatakse, et nendes neljas koolis, mis saavutasid üle ootuste häid tulemusi, rakendati erinevaid kompetentse. Juhtimine võttis narratiivi või otsingu vormi, kutsudes esile innustava kujutluspildi, mida toetas järjekindel otsustavus. Koolid võtsid suuna muudatustele, mis olid teiste sarnaste koolidega võrreldes uuenduslikumad. Pandi alus koostööle ja ühisele kogukonnale, mida toetasid ka konkureerivad koolid, ning lühiajaline edu muutus pikaajaliseks jätkusuutlikkuseks.  Full text

Progress toward clonable inorganic nanoparticles

Science.gov (United States)

Ni, Thomas W.; Staicu, Lucian C.; Nemeth, Richard S.; Schwartz, Cindi L.; Crawford, David; Seligman, Jeffrey D.; Hunter, William J.; Pilon-Smits, Elizabeth A. H.; Ackerson, Christopher J.

2015-10-01

Pseudomonas moraviensis stanleyae was recently isolated from the roots of the selenium (Se) hyperaccumulator plant Stanleya pinnata. This bacterium tolerates normally lethal concentrations of SeO32- in liquid culture, where it also produces Se nanoparticles. Structure and cellular ultrastructure of the Se nanoparticles as determined by cellular electron tomography shows the nanoparticles as intracellular, of narrow dispersity, symmetrically irregular and without any observable membrane or structured protein shell. Protein mass spectrometry of a fractionated soluble cytosolic material with selenite reducing capability identified nitrite reductase and glutathione reductase homologues as NADPH dependent candidate enzymes for the reduction of selenite to zerovalent Se nanoparticles. In vitro experiments with commercially sourced glutathione reductase revealed that the enzyme can reduce SeO32- (selenite) to Se nanoparticles in an NADPH-dependent process. The disappearance of the enzyme as determined by protein assay during nanoparticle formation suggests that glutathione reductase is associated with or possibly entombed in the nanoparticles whose formation it catalyzes. Chemically dissolving the nanoparticles releases the enzyme. The size of the nanoparticles varies with SeO32- concentration, varying in size form 5 nm diameter when formed at 1.0 μM [SeO32-] to 50 nm maximum diameter when formed at 100 μM [SeO32-]. In aggregate, we suggest that glutathione reductase possesses the key attributes of a clonable nanoparticle system: ion reduction, nanoparticle retention and size control of the nanoparticle at the enzyme site.Pseudomonas moraviensis stanleyae was recently isolated from the roots of the selenium (Se) hyperaccumulator plant Stanleya pinnata. This bacterium tolerates normally lethal concentrations of SeO32- in liquid culture, where it also produces Se nanoparticles. Structure and cellular ultrastructure of the Se nanoparticles as determined by cellular

Muutustest maanaiste stereotüüpses kuvandis Eesti naisteajakirjade põhjal / Ell Vahtramäe

Index Scriptorium Estoniae

Vahtramäe, Ell, 1966-

2013-01-01

Mida kätkeb endas sõnapaar „Eesti maanaine“, milliseid vahendeid vastava stereotüübi kujundamisel on ajakirjanduses kasutatud, kas ja kuidas on stereotüübid muutunud ning millised on nende kontekstid. Allikatena analüüsitakse ajakirjade Taluperenaine ja Eesti Naine (1952-1988 Nõukogude Naine) üksikuid aastakäike. Nendes avaldatu põhjal sünteesitakse maanaise nn ametlik või ideaalne kuvand ning suhestatakse seda reaalse maaeluga

Okupeeritud Eestist Saksa Reich'i: täiendusi 1941. aasta järelümberasumise uurimisse / Olev Liivik, Triin Tark

Index Scriptorium Estoniae

Liivik, Olev, 1975-

2016-01-01

Ümberasustamise operatsiooni allikatest. Saksamaa ja NSV Liidu kokkuleppest välissakslaste järelümberasumise suhtes. Riigisakslastest ja rahvussakslastest, nende jagamisest ümberasujateks ja põgenikeks. Märtsi keskpaigaks 1941 oli enamik järelümberasujaid Saksamaale lahkunud. Järelümberasujate vastuvõtmisest ja käsitlemisest Saksa Reich'is. Mittesakslastest ümberasujad ei olnud Saksa Reich'is oodatud, kuid samal ajal tehti keeruliseks ka nende tagasipöördumine kodumaale

Hamid Karzai on küll Afganistani riigipea, aga Massoud on kangelane / Leslie Leino

Index Scriptorium Estoniae

Leino, Leslie

2005-01-01

Afganistani valimistel võitsid opositsionäärid, tugevaim figuur nende hulgas on Ahmad Shah Massoudi kunagine kaasvõitleja Yunus Qanun, kelle siht on võõrväed riigist välja viia ja riik ühendada. Ameeriklased ja nende liitlased on ärevil, sest Qanun pole võõrvägede hulgas populaarne. Lisa: Põhimõtteliselt ameeriklaste vastu. Vt. samas: Afganistanis alustas pärast 30-aastast pausi tööd parlament

Mida teeks tulevane kultuuriminister 500 miljoni krooniga? / interv. Andres Keil

Index Scriptorium Estoniae

2007-01-01

Suuremate erakondade kultuurispetsialistid (kultuuriministrikandidaadid) Urmas Paet, Andres Herkel, Peeter Jalakas, Indrek Saar, Jaak Allik, samuti kultuuriminister Raivo Palmaru vastavad küsimustele, mis on suurimad ohud eesti keele ja rahvuskultuuri säilimisele, milline on kultuuriministeeriumi ja -ministri portfelli staatus praeguses valitsuses, kas kultuuri rahastamine riigieelarvest on piisav, mille poolest erineb nende erakonna nägemus kultuuripoliitikast teiste erakondade omast, kuhu nad suunaksid 50, 500 miljonit, kui see oleks nende käsutuses

Search Engine Marketing (SEM: Financial & Competitive Advantages of an Effective Hotel SEM Strategy

Directory of Open Access Journals (Sweden)

Leora Halpern Lanz

2015-05-01

Full Text Available Search Engine Marketing and Optimization (SEO, SEM are keystones of a hotels marketing strategy, in fact research shows that 90% of travelers start their vacation planning with a Google search. Learn five strategies that can enhance a hotels SEO and SEM strategies to boost bookings.

Matriz proteica tridimensional de origen autólogo en la regeneración de defectos de hueso largo

OpenAIRE

Fernández Villán, María

2015-01-01

OBJETIVO: La reparación de defectos óseos supone aún hoy en día un reto para los cirujanos reconstructivos. Los progresos alcanzados en la cirugía ortopédica han ampliado las posibilidades en el tratamiento tanto de los reemplazos articulares como de los tumores óseos y traumatismos, a menudo con la necesidad de abordar defectos óseos de gran tamaño. La Ingeniería Tisular es un intento de recrear la biología de un tejido. En el caso de la cirugía ortopédica y traumatología dicho tejido deberí...

PR Students' Perceptions and Readiness for Using Search Engine Optimization

Science.gov (United States)

Moody, Mia; Bates, Elizabeth

2013-01-01

Enough evidence is available to support the idea that public relations professionals must possess search engine optimization (SEO) skills to assist clients in a full-service capacity; however, little research exists on how much college students know about the tactic and best practices for incorporating SEO into course curriculum. Furthermore, much…

Taking It to the Top: A Lesson in Search Engine Optimization

Science.gov (United States)

Frydenberg, Mark; Miko, John S.

2011-01-01

Search engine optimization (SEO), the promoting of a Web site so it achieves optimal position with a search engine's rankings, is an important strategy for organizations and individuals in order to promote their brands online. Techniques for achieving SEO are relevant to students of marketing, computing, media arts, and other disciplines, and many…

Understanding and Mitigating Forum Spam

Science.gov (United States)

Shin, Youngsang

2011-01-01

The Web is large and expanding, making it challenging to attract new visitors to websites. Website operators often use Search Engine Optimization (SEO) techniques to boost the search engine rankings of their sites, thereby maximizing the inflow of visitors. Malicious operators take SEO to the extreme through many unsavory techniques that are often…

Growth and fruit body formation of Pleurotus ostreatus on media supplemented with inorganic selenium

Directory of Open Access Journals (Sweden)

Savić Milena D.

2009-01-01

Full Text Available Selenium is a trace mineral chemically related to sulfur and tellurium. In the body selenium combines with protein molecules to form selenoproteins and it is distributed in low concentrations and unequally in air, soil and water all over the world. Edible mushrooms are known to be selenium accumulators. Since mushrooms contain relatively high protein levels, and they can accumulate large amounts of selenium, it is reasonable to expect that selenium could be incorporated into proteins. The growth of mycelia and fruit body formation of different medicinal mushroom strains of Pleurotus ostreatus (Hk-35 and P70 over the wide range of concentrations of inorganic form of selenium were examined. Mushrooms were cultivated on agar base media and on substrates based on sawdust. Vegetative growths of mycelium were measured as colony diameter in pure cultures supplemented with inorganic form of Se supplements, prepared as Na2SeO4 and Na2SeO3 in concentrations of: 1, 10, 25, 50, 75, 100 and 150 mg/l. Inorganic form of Se supplements, showed stimulation effects (in concentration of 1-50 mg/l and toxic effects in higher concentration. On the standard industrial sawdust based substrate, supplemented with 100 mg/kg Na2SeO4 and Na2SeO3, accumulation of Se in fruit bodies was determined by the method of flameless atomic absorption spectrophotometer. The readings were performed on Varian SpectrAA-10 spectrophotometer equipped with VGA-76. Se as Na2SeO4 and Na2SeO3 was effectively taken up from substrates and accumulated in fruit bodies. Mushrooms accumulated selenium between 120 and 250 mg/kg dry weight. In mushrooms cultivated without Se supplement, Se contents were only about 1 mg/kg and in substrate about 0.1 mg/kg.

Selenium inhibits the phytotoxicity of mercury in garlic (Allium sativum)

International Nuclear Information System (INIS)

Zhao, Jiating; Gao, Yuxi; Li, Yu-Feng; Hu, Yi; Peng, Xiaomin; Dong, Yuanxing; Li, Bai; Chen, Chunying; Chai, Zhifang

2013-01-01

To investigate the influence of selenium on mercury phytotoxicity, the levels of selenium and mercury were analyzed with inductively coupled plasma-mass spectrometry (ICP-MS) in garlic tissues upon exposure to different dosages of inorganic mercury (Hg 2+ ) and selenite (SeO 3 2− ) or selenate (SeO 4 2− ). The distributions of selenium and mercury were examined with micro-synchrotron radiation X-ray fluorescence (μ-SRXRF), and the mercury speciation was investigated with micro-X-ray absorption near edge structure (μ-XANES). The results show that Se at higher exposure levels (>1 mg/L of SeO 3 2− or SeO 4 2− ) would significantly inhibit the absorption and transportation of Hg when Hg 2+ levels are higher than 1 mg/L in culture media. SeO 3 2− and SeO 4 2− were found to be equally effective in reducing Hg accumulation in garlic. The inhibition of Hg uptake by Se correlates well with the influence of Se on Hg phytotoxicity as indicated by the growth inhibition factor. Elemental imaging using μ-SRXRF also shows that Se could inhibit the accumulation and translocation of Hg in garlic. μ-XANES analysis shows that Hg is mainly present in the forms of Hg–S bonding as Hg(GSH) 2 and Hg(Met) 2 . Se exposure elicited decrease of Hg–S bonding in the form of Hg(GSH) 2 , together with Se-mediated alteration of Hg absorption, transportation and accumulation, may account for attenuated Hg phytotoxicity by Se in garlic. -- Highlights: ► Hg phytotoxicity can be mitigated by Se supplement in garlic growth. ► Se can inhibit the accumulation and transportation of Hg in garlic tissues. ► Localization and speciation of Hg in garlic can be modified by Se

Uso de la compactación y/o transportación ósea en los defectos de hueso

Directory of Open Access Journals (Sweden)

Fernando López Guevara

2014-08-01

Full Text Available El ortopedista se enfrenta en disímiles ocasiones a enfermos que en sus lesiones de huesos largos presentan defectos óseos, o por un proceder quirúrgico es necesario resecar fragmentos óseos de diferentes tamaños, como en las fracturas expuestas con pérdida de sustancia ósea, en la seudo-artrosis donde se pierde o reseca hueso como terapéutica, en la osteomielitis o tumores óseos donde es necesario resecar parte del tejido y en las enfermedades congénitas, donde el niño nace con un defecto óseo como en la agenesia de tibia. En todos estos pacientes el denominador común es la falta de tejido óseo por lo cual el proceder de Ilizarov, con la distracción y el callo de elongación, brinda la solución de la problemática. Con el fijador externo de Ilizarov por osteotomía o por corticotomía, se puede transportar o compactar y con la distracción subsiguiente se consigue el callo de elongación, y se da la solución al defecto de hueso. En el servicio de Ortopedia y Traumatología del Hospital General Docente Dr. Ernesto Guevara de la Serna, de Las Tunas, Cuba; se atendieron 39 pacientes que por una u otra causa sufrieron de defectos óseos y se les aplicó el procedimiento del callo de elongación, lográndose la formación de hueso nuevo. Se concluyó que el proceder es idóneo y técnicamente posible en cualquier hospital donde exista un ortopedista

Identifying events that impact self-efficacy in physics learning

Directory of Open Access Journals (Sweden)

Vashti Sawtelle

2012-09-01

Full Text Available We present a method of analyzing the development of self-efficacy in real time using a framework of self-efficacy opportunities (SEOs. Considerable research has shown a connection between self-efficacy, or the confidence in one’s own ability to perform a task, and success in science fields. Traditional methods of investigating the development of self-efficacy have required participants to recollect past events. This reliance on participant memory makes it difficult to understand what impact particular events may have on developing self-efficacy in the moment. We use video recordings of three undergraduate Modeling Instruction students solving a physics problem to characterize SEOs in a moment-by-moment analysis. We then validate these characterizations of the development of self-efficacy by reviewing the problem-solving session with the participants and find evidence that the SEOs identified are taken up and impact self-efficacy. This characterization and validation of SEOs in the moment represents a first step towards establishing a methodology for analyzing the development of self-efficacy in real time.

Secret Sauce and Snake Oil: Writing Monthly Reports in a Highly Contingent Environment

Science.gov (United States)

Spinuzzi, Clay

2010-01-01

At a search marketing company, each search engine optimization (SEO) specialist writes up to 10 to 12 complex 20-page monthly reports in the first ten business days of each month. These SEO specialists do not consider themselves to be writers, yet they generate these structurally and rhetorically complex reports as a matter of course, while…

Sattumuslikkus, hegemoonia ning õiglus: John Rawls ja radikaalne demokraatia

Directory of Open Access Journals (Sweden)

Peeter Selg

2010-12-01

Full Text Available Artikkel käsitleb kriitiliselt üht viimaste kümnendite vastandust poliitilises filosoofias — ‘poliitilise liberalismi’ (Rawls ja ‘radikaalse demokraatia’ (Laclau ja Mouffe vahel. Artikkel püüab käivitada potentsiaalset dialoogi nende kahe näiliselt lahkneva lähenemise vahel. Kokkuvõttes näitab artikkel, et vastandus on möödarääkimine vähemalt ühes fundamentaalses mõttes: mõlemad lähenemised jagavad ühiskonnastmõtlemisel sama aluseetost. Artiklis nimetatakse seda ‘sattumuslikkuse eetoseks’ ning väidetakse, et see on kõige fundamentaalsem alusveendumus nii Laclau ja Mouffe’i ‘radikaalse demokraatia’ kui ka Rawlsi ‘õigluse kui ausameelsuse’ idee jaoks. Artikkel osutab ka ühele kesksele kitsaskohale Laclau ja Mouffe’i lähenemises: nende suutmatusele kontseptualiseerida institutsioonilisi korraldusi tulenevalt nende ülemäärasest rõhuasetust demokraatia dekonstruktiivsele potentsiaalile. Selles suhtes osutatakse ka Rawlsi käsitluse ilmselgetele eelistele, kuna see pakub juhiseid organiseerimaks demokraatlikke institutsioone.

Interpretation of dc and ac conductivity of Ag2O–SeO2–MoO3 glass-nanocomposite-semiconductor

International Nuclear Information System (INIS)

Bhattacharya, Sanjib; Kundu, Ranadip; Das, Anindya Sundar; Roy, Debasish

2015-01-01

Highlights: • Polaron hopping. • Dc and ac conductivity. • Mott's model and Greave's model. • Ag 2 MoO 4 , Ag 2 Mo 2 O 7 and Ag 6 Mo 10 O 33 nanoparticles and SeO 3 and SeO 4 nanoclusters. • XRD and FESEM studies. - Abstract: A new type of semiconducting glass-nanocomposites 0.3Ag 2 O–0.7 (xMoO 3 –(1 − x) SeO 2 ) is prepared by melt-quenching route. The formation of Ag 2 MoO 4 , Ag 2 Mo 2 O 7 and Ag 6 Mo 10 O 33 nanoparticles and SeO 3 and SeO 4 nanoclusters in glass-nanocomposites has been confirmed from X-ray diffraction (XRD) and field emission scanning electron microscopic (FESEM) studies. Fourier transform infrared (FTIR) spectroscopy is employed to find out Se−O stretching vibration as well as stretching vibrations of Mo 2 O 7 2− ions. The dc conductivity of them is studied on the light of polaron hopping approach in a wide temperature range. At low temperatures, variable range hopping model (Mott's model) is employed to analyze the conductivity data. Greave's model is used to predict temperature dependent variable range hopping in the high temperature region. Frequency dependent ac conductivity is well explained on the basis of tunneling. I–V characteristics of the as-prepared samples have also been investigated

Parallel search engine optimisation and pay-per-click campaigns: A comparison of cost per acquisition

Directory of Open Access Journals (Sweden)

Wouter T. Kritzinger

2017-07-01

Full Text Available Background: It is imperative that commercial websites should rank highly in search engine result pages because these provide the main entry point to paying customers. There are two main methods to achieve high rankings: search engine optimisation (SEO and pay-per-click (PPC systems. Both require a financial investment – SEO mainly at the beginning, and PPC spread over time in regular amounts. If marketing budgets are applied in the wrong area, this could lead to losses and possibly financial ruin. Objectives: The objective of this research was to investigate, using three real-world case studies, the actual expenditure on and income from both SEO and PPC systems. These figures were then compared, and specifically, the cost per acquisition (CPA was used to decide which system yielded the best results. Methodology: Three diverse websites were chosen, and analytics data for all three were compared over a 3-month period. Calculations were performed to reduce the figures to single ratios, to make comparisons between them possible. Results: Some of the resultant ratios varied widely between websites. However, the CPA was shown to be on average 52.1 times lower for SEO than for PPC systems. Conclusion: It was concluded that SEO should be the marketing system of preference for e-commerce-based websites. However, there are cases where PPC would yield better results – when instant traffic is required, and when a large initial expenditure is not possible.

Biodegradation of spent engine oil by bacteria isolated from the rhizosphere of legumes grown in contaminated soil

Directory of Open Access Journals (Sweden)

HY Ismail

2014-05-01

Full Text Available Biodegradation of spent engine oil (SEO by bacteria isolated from the rhizosphere of Cajan cajan and Lablab purpureus was investigated. It was with a view to determining most efficient bacterial species that could degrade SEO in phytoremediation studies. Hydrocarbon degrading bacteria were isolated and identified by enrichment culture technique using oil agar supplemented with 0.1% v/v SEO. Total heterotrophic and oil utilizing bacterial count showed the occurrence of large number of bacteria predominantly in the rhizosphere soil, ranging between 54×108 - 144×108 CFU/g and 4×108- 96×108 CFU/g respectively. Percentage of oil utilizing bacteria ranged between 0% (uncontaminated non rhizosphere soil to 76% (contaminated rhizosphere. Turbidimetrically, five bacterial species namely Pseudomonas putrefacience CR33, Klebsiella pneumonia CR23, Pseudomonas alcaligenes LR14, Klebsiella aerogenes CR21, and Bacillus coagulans CR31 were shown to grow maximally and degraded the oil at the rate of 68%, 62%, 59%, 58%and 45% respectively. Chromatographic analysis using GC-MS showed the presence of lower molecular weight hydrocarbons in the residual oil (indicating degradation after 21 days, whereas the undegraded oil (control had higher molecular weight hydrocarbons after the same period. The species isolated were shown to have high ability of SEO biodegradation and therefore could be important tools in ameliorating SEO contaminated soil. DOI: http://dx.doi.org/10.3126/ije.v3i2.10515 International Journal of the Environment Vol.3(2 2014: 63-75

Matemaatika õpimotiivid ja nende kujunemine / Helle Sikka

Index Scriptorium Estoniae

Sikka, Helle, 1949-

2001-01-01

Õpimotivatsioonist ja selle mõjuteguritest, matemaatika õppimise motiveerimisest. 1999.a. TPÜ algõpetuse õppetooli poolt läbi viidud uuringust Tallinna koolide 2.-6. klasside õpilaste ja klassiõpetajate seas. Uurimuse eesmärgiks oli selgitada õpilaste üldisi õpimotiive, matemaatika õppimise motiive, aineseoseid argieluga, analüüsida nii õpilaste kui õpetajate hinnanguid probleemülesannete lahendamisele

Jätkem inimestele nende enesepete / Kristjan Port

Index Scriptorium Estoniae

Port, Kristjan

2007-01-01

Paljud internetikasutajad elavad turvalisuse illusioonis, mida aitavad luua PIN-koodid, võtmesõnad, andmete šifreerimised ja andmekaitse seadused. Värske Privacy Internationali raport isikuandmete turvalisusest. Google paigutatakse turvalisuse poolest kõige mustemasse kasti. Kriitika põhjustaja on Googleì kõvaketastele kujuv info kodaniku otsingutest ja huvidest

Tomografía computada cone beam en articulación témporo mandibular (ATM

Directory of Open Access Journals (Sweden)

DR. B. Andrés Briner

2014-09-01

El propósito del presente artículo es exponer imágenes de alta resolución obtenidas mediante la técnica de Cone Beam, mostrando la elevada capacidad que esta técnica tiene para detectar cambios óseos morfológicos sutiles, que permiten el diagnóstico de las diversas etapas del proceso óseo degenerativo.

Synthesis of ZnSe and ZnSe:Cu quantum dots by a room temperature photochemical (UV-assisted) approach using Na2 SeO3 as Se source and investigating optical properties.

Science.gov (United States)

Khafajeh, R; Molaei, M; Karimipour, M

2017-06-01

In this study, ZnSe and ZnSe:Cu quantum dots (QDs) were synthesized using Na 2 SeO 3 as the Se source by a rapid and room temperature photochemical (UV-assisted) approach. Thioglycolic acid (TGA) was employed as the capping agent and UV illumination activated the chemical reactions. Synthesized QDs were successfully characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), photoluminescence (PL) and UV-visible (UV-vis) spectroscopy, Fourier transform-infrared (FT-IR), and energy dispersive X-ray spectroscopy (EDX). XRD analysis demonstrated the cubic zinc blend phase QDs. TEM images indicated that round-shaped particles were formed, most of which had a diameter of about 4 nm. The band gap of the ZnSe QDs was higher than that for ZnSe in bulk. PL spectra indicated an emission with three peaks related to the excitonic, surface trap states and deep level (DL) states. The band gap and QD emission were tunable only by UV illumination time during synthesis. ZnSe:Cu showed green emission due to transition of electrons from the Conduction band (CB) or surface trap states to the 2 T 2 acceptor levels of Cu 2 + . The emission was increased by increasing the Cu 2 + ion concentration, such that the optimal value of PL intensity was obtained for the nominal mole ratio of Cu:Zn 1.5%. Copyright © 2016 John Wiley & Sons, Ltd.

Avances en la valoración de la salud ósea en el trasplantado renal

Directory of Open Access Journals (Sweden)

María José Pérez-Sáez

2018-01-01

La resistencia ósea, definida como la capacidad del hueso para resistir la fractura, viene determinada por la cantidad de material mineral (medida como densidad mineral ósea por densitometría ósea, la arquitectura trabecular y la calidad del tejido óseo. El score trabecular óseo estima la microarquitectura ósea y valores bajos se han demostrado como predictores independientes de mayor riesgo de fractura. La microindentación ósea es una técnica mínimamente invasiva capaz de medir la resistencia ósea que el hueso opone a la apertura de micro-cracks (separación microscópica de fibras de colágena mineralizada, y con ello, las propiedades biomecánicas del tejido óseo. La buena correlación con el riesgo de fractura de los parámetros medidos con el score trabecular óseo o la microindentación en diversas poblaciones, superior a la propia densitometría ósea, nos ha estimulado a desarrollar su potencial aplicación en los pacientes con enfermedad renal crónica y trasplantados renales.

Methane Dynamics in a Tropical Serpentinizing Environment: The Santa Elena Ophiolite, Costa Rica

Directory of Open Access Journals (Sweden)

Melitza Crespo-Medina

2017-05-01

Full Text Available Uplifted ultramafic rocks represent an important vector for the transfer of carbon and reducing power from the deep subsurface into the biosphere and potentially support microbial life through serpentinization. This process has a strong influence upon the production of hydrogen and methane, which can be subsequently consumed by microbial communities. The Santa Elena Ophiolite (SEO on the northwestern Pacific coast of Costa Rica comprises ~250 km2 of ultramafic rocks and mafic associations. The climatic conditions, consisting of strongly contrasting wet and dry seasons, make the SEO a unique hydrogeological setting, where water-rock reactions are enhanced by large storm events (up to 200 mm in a single storm. Previous work on hyperalkaline spring fluids collected within the SEO has identified the presence of microorganisms potentially involved in hydrogen, methane, and methanol oxidation (such as Hydrogenophaga, Methylobacterium, and Methylibium spp., respectively, as well as the presence of methanogenic Archaea (such as Methanobacterium. Similar organisms have also been documented at other serpentinizing sites, however their functions have not been confirmed. SEO's hyperalkaline springs have elevated methane concentrations, ranging from 145 to 900 μM, in comparison to the background concentrations (<0.3 μM. The presence and potential activity of microorganisms involved in methane cycling in serpentinization-influenced fluids from different sites within the SEO were investigated using molecular, geochemical, and modeling approaches. These results were combined to elucidate the bioenergetically favorable methane production and/or oxidation reactions in this tropical serpentinizing environment. The hyperalkaline springs at SEO contain a greater proportion of Archaea and methanogens than has been detected in any terrestrial serpentinizing system. Archaea involved in methanogenesis and anaerobic methane oxidation accounted from 40 to 90% of total

Tekstisisesed seosed eesti keele kui teise keele lugemistestis: mõõtmisvahendi valiidsus

Directory of Open Access Journals (Sweden)

Tiina Kikerpill

2013-10-01

Full Text Available Teksti mõistmine on keerukas protsess olenemata sellest, kas tegu on emakeeles või võõrkeeles lugemisega, sest see kätkeb endas samaaegset sõnade tuvastamist, tekstiga väljendatud otsese tähenduse tuletamist ja lugeja taustteadmiste abil teksti tõlgendamist. Üheks teksti mõistmise aspektiks on oskus ära tunda tekstis sisalduvaid sisulis-loogilisi ja leksikaalseid seoseid. Seega peaks lugemisoskuse arendamisel ja mõõtmisel pöörama tähelepanu ka tekstisisestele seostele. Võõrkeele lugemistestides kasutatakse nende seoste mõistmise kontrollimiseks erinevaid ülesandetüüpe, kuid nende tõhusust on vähe uuritud. Artiklis analüüsitakse kolme ülesandetüüpi – tekstilõikude järjestamist ning lausete ja tekstilõikude sobitamist lünkadesse. Keskendutakse nende valiidsusele, otsides vastust küsimustele, mil määral sõltub ülesannete edukas sooritamine tekstisiseste seoste mõistmisest ning missugune on ülesandetüübi mõju tekstisiseste seoste kasutamisele ülesande soorituses.

The Effects of Spent Engine Oil on Soil Properties and Growth of ...

African Journals Online (AJOL)

The effect of spent engine oil (SEO) on soil properties and growth of maize (Zea mays L.) was investigated. Five treatments (0.0, 0.2, 0.4, 0.6 and 0.8 l/kg) of the spent oil were applied to soil in perforated poly bags with maize stands at four weeks after sowing. Soil analysis showed that SEO had no effect on both the pH and ...

Synthesis and photoluminescence study of narrow-band UVB ...

Indian Academy of Sciences (India)

[7] Guo C, Ding X, Seo H J, Ren Z and Bai J 2011 J. Alloys. Compd. 509 4871. [8] Zhang X, Lang H and Seo H 2011 J. Fluoresc. 21 1111. [9] Zhang Z W 2013 Ceram. Int. 39 1723. [10] Yu H 2012 J. Lumin. 132 2553. [11] Wang Q 2012 J. Lumin. 132 434. [12] Palan C, Bajaj N and Omanwar S 2016 Mater. Res. Bull. 76 216.

Solid-state synthesis, structure and properties of a novel open-framework cadmium selenite bromide: [Cd10(SeO3)8Br4]·HBr·H2O

International Nuclear Information System (INIS)

Chen, Wen-Tong; Wang, Ming-Sheng; Wang, Guan-E; Chen, Hui-Fen; Guo, Guo-Cong

2013-01-01

A novel open-framework cadmium selenite bromide, [Cd 10 (SeO 3 ) 8 Br 4 ]·HBr·H 2 O (1), has been obtained by a solid-state reaction at 450 °C, and the structure has been determined by single-crystal X-ray diffraction analysis. Compound 1 crystallizes in Pbcm of the orthorhombic system: a=10.882(3), b=16.275(5), c=18.728(6) Å, V=3317(2) Å 3 , R1/wR2=0.0411/0.0659. Compound 1 is characteristic of a novel 3-D open-framework structure, composing ∞ 2 [CdSeO 3 ] layers and the pillars of edge-shared CdO 3 Br 2 square pyramids. The lattice water molecules and the HBr molecules locate in the voids of the framework. Optical absorption spectrum of 1 reveals the presence of an optical gap of 1.65 eV. Solid-state photoluminescent study indicates that compound 1 exhibits strong violet emission. TG–DSC measurement shows that compound 1 is thermally stable up to 200 °C. - Graphical abstract: A metal selenite halide has been synthesized and features a 3-D open-framework structure, composing edge-shared CdO 8 decahedra and pillars of edge-sharing pentahedra. UV–vis, TG–DSC and luminescent measurements are also reported. Highlights: • This paper reports a novel cadmium selenite bromide obtained by an intermediate-temperature solid-state reaction. • The title compound is characteristic of a novel 3-D open-framework structure, composing ∞ 2 [CdSeO 3 ] layers and the pillars of edge-shared CdO 3 Br 2 square pyramids. • The title compound is thermally stable up to 200 °C. • The title compound has an optical gap of 1.65 eV and exhibits strong violet emission

The visual cognitive network, but not the visual sensory network, is affected in amnestic mild cognitive impairment: a study of brain oscillatory responses.

Science.gov (United States)

Yener, Görsev G; Emek-Savaş, Derya Durusu; Güntekin, Bahar; Başar, Erol

2014-10-17

Mild Cognitive Impairment (MCI) is considered in many as prodromal stage of Alzheimer's disease (AD). Event-related oscillations (ERO) reflect cognitive responses of brain whereas sensory-evoked oscillations (SEO) inform about sensory responses. For this study, we compared visual SEO and ERO responses in MCI to explore brain dynamics (BACKGROUND). Forty-three patients with MCI (mean age=74.0 year) and 41 age- and education-matched healthy-elderly controls (HC) (mean age=71.1 year) participated in the study. The maximum peak-to-peak amplitudes for each subject's averaged delta response (0.5-3.0 Hz) were measured from two conditions (simple visual stimulation and classical visual oddball paradigm target stimulation) (METHOD). Overall, amplitudes of target ERO responses were higher than SEO amplitudes. The preferential location for maximum amplitude values was frontal lobe for ERO and occipital lobe for SEO. The ANOVA for delta responses showed significant results for the group Xparadigm. Post-hoc tests indicated that (1) the difference between groups were significant for target delta responses, but not for SEO, (2) ERO elicited higher responses for HC than MCI patients, and (3) females had higher target ERO than males and this difference was pronounced in the control group (RESULTS). Overall, cognitive responses display almost double the amplitudes of sensory responses over frontal regions. The topography of oscillatory responses differs depending on stimuli: visualsensory responses are highest over occipitals and -cognitive responses over frontal regions. A group effect is observed in MCI indicating that visual sensory and cognitive circuits behave differently indicating preserved visual sensory responses, but decreased cognitive responses (CONCLUSION). Copyright © 2014 Elsevier B.V. All rights reserved.

Characterizing the nature of melt-rock reaction in peridotites from the Santa Elena Ophiolite, NW Costa Rica

Science.gov (United States)

Carr, D.; Loocke, M. P.; Snow, J. E.; Gazel, E.

2017-12-01

The Santa Elena Ophiolite (SEO), located on the northwestern coast of Costa Rica, consists primarily of preserved oceanic mantle and crustal rocks thrust above an accretionary complex. The SEO is predominantly characterized by mantle peridotites (i.e., primarily spinel lherzolite with minor amounts of harzburgite and dunite) cut and intruded by minor pegmatitic gabbros, layered gabbros, plagiogranites, and doleritic and basaltic dykes. Previous studies have concluded that the complex formed in a suprasubduction zone (SSZ) setting based on the geochemical nature of the layered gabbros and plagiogranites (i.e., depleted LREE and HFSE and enriched LILE and Pb), as well, as the peridotites (i.e., low-TiO2, Zr, and V, and high MgO, Cr, and Ni)(Denyer and Gazel, 2009). Eighteen ultramafic samples collected during the winter 2010/2011 field season (SECR11) exhibit abundant evidence for melt-rock reaction (e.g., disseminated plagioclase and plagioclase-spinel, clinopyroxene-spinel, and plagioclase-clinopyroxene symplectites) and provide a unique opportunity to characterize the textural and chemical nature of melt-rock reaction in the SEO. We present the results of a petrologic investigation (i.e., petrography and electron probe microanalysis) of 28 thin sections (19 spinel lherzolites, of which 14 are plagioclase-bearing, 4 pyroxenite veins, and 5 harzburgites) derived from the SECR11 sample set. The results of this investigation have the potential to better our understanding of the nature of melt generation and migration and melt-rock interaction in the SEO mantle section and shed further light on the complex petrogenetic history of the SEO. Denyer, P., Gazel, E., 2009, Journal of South American Earth Sciences, 28:429-442.

Bioreduction of Selenium Oxyanions via the Feammox Process

Science.gov (United States)

Sherman, A.; Jaffe, P. R.

2017-12-01

Selenium (Se) is an important environmental contaminant found in both agricultural and industrial wastewater. A novel bacterium, Acidimicrobiaceae bacterium A6 (hereon referred to as A6), has been shown to oxidize ammonium through the reduction of iron oxides (termed the Feammox process) and has also been shown to reduce trace metals and radionuclides. This research aims to establish whether the Feammox process can be used to reduce Se oxyanions in wastewater, and to determine the pathway by which this reduction occurs. A novel method of Se analysis using ion chromatography (Dionex Aquion IC system, AS18 separator and guard columns, 18mM KOH eluent, 45mA) has been developed, showing clear resolution of SeO32- and SeO42- peaks and detection limits in the ppb range. Batch incubations were run using pure A6 culture to tie the reduction of Se to the activity of this bacterium. Nontronite was used as the iron source to sustain A6 activity. Unlike other iron sources, such as ferrihydrite, nontronite does not sorb Se oxyanions, and thus selenium remains bioavailable as an electron acceptor for use during the Feammox process. Concentrations of 1ppm of SeO32- and SeO42- were used, below the toxic threshold for A6, and incubations were sampled destructively over the course of 8 days. Samples were analyzed using ion chromatography and UV-Vis spectroscopy to determine bacterial activity and chemical speciation. Initial results indicate that A6 may be able to reduce 300ppb of SeO32-in 3 days, however more work is needed to further explain this result.

Cierre de una fístula oroantral usando cemento óseo y un colgajo de mucosa yugal Closure of an oroantral fistula using bone cement and a jugal mucosa flap

Directory of Open Access Journals (Sweden)

Beatriz Ágreda Moreno

2012-03-01

Full Text Available Una fístula oroantral es una solución de continuidad patológica entre el seno maxilar y la cavidad oral, producida frecuentemente tras una extracción dentaria, en la mayoría de los casos, del primer o segundo molar. El síntoma más común que provoca es una sinusitis aguda, que evolucionará a la cronicidad si la fístula permanece. El diagnóstico se realiza mediante endoscopia transalveolar, ortopantografía o tomografía computarizada dental. Su cierre quirúrgico es necesario cuando la fístula tiene más de 3 mm, o no sella por sí misma en 3 semanas. Existen, para ello, varias técnicas, usando distintos materiales y colgajos, cuyo fin es ocluir, tanto el defecto óseo, como el mucoso, para solucionar así a la vez la fístula y el problema sinusal.The oroantral fistula is a solution of pathological continuity between the maxillary sinus and the oral cavity, frequently produced after a teeth extraction in most of cases of the first or second molars. The commonest symptom provoked is an acute sinusitis evolving to chronicity if the fistula remains. The diagnosis is made by transalveolar, orthopantography or dental computerized tomography. Its surgical closure is necessary when the fistula has more than 3 mm or not seal by itself in three weeks. For it, there are some techniques using different materials and flaps where its objective is to occlude the bone defect as well as the mucous one thus solving the fistula and the sinus problem.

Real-time studies of the ferroelectric phase transformations in K2SeO4 and SrTiO3 under the influence of an electric field

International Nuclear Information System (INIS)

Leist, Jeannis-Nicos

2009-01-01

In the framework of this thesis the influence of an electric field on the ferroelectric model systems potassium selenate and strontium titanate was studied. The kinetics of the field-induced phase transformations were observed with stroboscopic scattering methods on a millisecond time scale. In potassium selenate thereby with elastic neutron scattering could be detected that an intense third-order satellite is only to be observed up to 10 K above the lock-in transformation. In this temperature intervall the incommensurable phase consists of a domain structure with well defined discommensurations. At slow cooling under the influence of the electric field a field-induced intermediate phase is formed. It is assumed that charged defects agglomerate and hinder the mechanism of the phase transformation. Both with inelastic neutron scattering and with Raman spectroscopy no dependence of the lattice dynamics on an electric field could be stated. The kinetics of the lock-in transformation in K 2 SeO 4 is by an order of magnitude faster than in the isostructural Rb 2 ZnCl 4 . The time constants vary temperature-independently between 0.2 and 1.2 milliseconds. The faster transformation results possibly from a smaller decommmensuration density and a smaller interaction with defects. With highly resolving γ-diffractometry in could moreover be shown that beside the volume parts of the modulated phases also the modulation coherence changes timely. It is in the stroboscopic experiments moreover a dynamic stabilization of the intermediate phase observed, which is attributed to the generation of mechanical stresses by the fast alternating field. The studies on strontium titanate yielded a distinct dependence of the lattice dynamics on the sample history. Real-time studies with inelastic neutron scattering show that the field-induced ferroelectric phase transformation runs very fastly. The frequency of the soft mode follows directly the alteration of the electric field. From

Rahvusvahelise terrorismi rahastamise tõkestamise õiguslikud võimalused ja probleemid : [magistritöö] / Deivid Uibo ; Tartu Ülikool, õigusteaduskond Tallinnas ; juhendaja: René Värk

Index Scriptorium Estoniae

Uibo, Deivid, 1987-

2013-01-01

Rahvusvahelise terrorismi rahastamise vastase võitluse olemusest, rahvusvahelise õiguse meetmetest ja nende tõhususest terrorismi rahastamise tõkestamisel, õiguslikest probleemidestedasiarendustest

Peran Layanan Jasa Search Engine Optimization untuk Meningkatkan Daya Saing pada Bisnis Startup (Studi pada Kaldera Trail and Jeep Adventure Malang)

OpenAIRE

Wira Bharata

2016-01-01

This study aimed to investigate the role of SEO as a strategic competitive advantage. This study uses a qualitative approach with case studies are used as a research design. Researchers in the interviews to the owner Caldera Trail & Jeep Adventure. The results of this study indicate that the role of SEO to optimize the website proved successful in the company’s competitive advantage strategy Caldera Trail & Jeep Adventure. The results showed online marketing is done through Facebook, ...

PHP Ajax Cookbook

CERN Document Server

Sedliak, Milan; Bhattarai, Roshan

2011-01-01

This book contains a collection of recipes with step-by-step directions to build SEO-friendly websites using standard Ajax tools. Each recipe contains behind-the-scene explanations to PHP Ajax questions. This book is an ideal resource for people who like to add Ajax features to websites and who prefer standards and best practices for building SEO-friendly websites. As the book covers advanced topics, readers need to be aware of basic PHP, JavaScript and XML features.

Etude analytique des performances des systèmes radio-mobiles en présence d'évanouissements et d'effet de masque

OpenAIRE

Mary , Philippe

2008-01-01

This thesis focuses on analytical performance studies of radiocommunication systems in shadowing environments. The shadowing implied by the presence of large scale obstacles between transmitter and receiver, induces a change in the average symbol error probability (SEP). The symbol error outage (SEO), defined as the probability to observe a given average SEP over a fading channel in a shadowing environment, is hence a more adequate metric. The most challenging issue in the SEO study is that an...

Search engine optimization

OpenAIRE

Marolt, Klemen

2013-01-01

Search engine optimization techniques, often shortened to “SEO,” should lead to first positions in organic search results. Some optimization techniques do not change over time, yet still form the basis for SEO. However, as the Internet and web design evolves dynamically, new optimization techniques flourish and flop. Thus, we looked at the most important factors that can help to improve positioning in search results. It is important to emphasize that none of the techniques can guarantee high ...

Biomimetic synthesis of selenium nanospheres by bacterial strain JS-11 and its role as a biosensor for nanotoxicity assessment: a novel se-bioassay.

Science.gov (United States)

Dwivedi, Sourabh; Alkhedhairy, Abdulaziz A; Ahamed, Maqusood; Musarrat, Javed

2013-01-01

Selenium nanoparticles (Se-NPs) were synthesized by green technology using the bacterial isolate Pseudomonas aeruginosa strain JS-11. The bacteria exhibited significant tolerance to selenite (SeO3(2-)) up to 100 mM concentration with an EC50 value of 140 mM. The spent medium (culture supernatant) contains the potential of reducing soluble and colorless SeO3(2-) to insoluble red elemental selenium (Se(0)) at 37°C. Characterization of red Se° product by use of UV-Vis spectroscopy, X-ray diffraction (XRD), atomic force microscopy (AFM) and transmission electron microscopy (TEM) with energy dispersive X-ray spectrum (EDX) analysis revealed the presence of stable, predominantly monodispersed and spherical selenium nanoparticles (Se-NPs) of an average size of 21 nm. Most likely, the metabolite phenazine-1-carboxylic acid (PCA) released by strain JS-11 in culture supernatant along with the known redox agents like NADH and NADH dependent reductases are responsible for biomimetic reduction of SeO3(2-) to Se° nanospheres. Based on the bioreduction of a colorless solution of SeO3(2-) to elemental red Se(0), a high throughput colorimetric bioassay (Se-Assay) was developed for parallel detection and quantification of nanoparticles (NPs) cytotoxicity in a 96 well format. Thus, it has been concluded that the reducing power of the culture supernatant of strain JS-11 could be effectively exploited for developing a simple and environmental friendly method of Se-NPs synthesis. The results elucidated that the red colored Se° nanospheres may serve as a biosensor for nanotoxicity assessment, contemplating the inhibition of SeO3(2-) bioreduction process in NPs treated bacterial cell culture supernatant, as a toxicity end point.

Structures of the two new compounds distrontium copper(II) triselenite(IV) and distrontium copper(II) bis[hydrogenselenite(IV)] bisselenite(IV)

International Nuclear Information System (INIS)

Effenberger, H.

1988-01-01

Sr 2 Cu(SeO 3 ) 3 , M r =619.68, triclinic, Panti 1, a=7.229(3), b=7.710(3), c=8.656(3) A, α=102.68(3), β=105.31(3), γ=96.12(3) 0 , V=447.0 A 3 , Z=2, D x =4.60 Mg m -3 , λ(MoKα)=0.71073 A, μ=26.0 mm -1 , F(000)=558, room temperature, R=0.033 for 3330 reflections up to 2θ=70 0 . Sr 2 Cu(SeO 2 OH) 2 (SeO 3 ) 2 , M r =748.65, triclinic, Panti 1, a=5.260(1), b=6.961(1), c=9.052(2) A, α=67.86(1), β=75.40(1), γ=80.41(1) 0 , V=296.6A 3 , Z=1, D x =4.19 Mg m -3 , λ(MoKα)=0.71073 A, μ=22.6 mm -1 , F(000)=339, room temperature, R=0.036 for 2362 reflections up to 2θ=70 0 . In the two compounds the Sr atoms are [8] and [9] coordinated (Sr-O=2.52 to 2.93 A), the Cu atoms have a tetragonal-pyramidal [4+1] and a square-planar [4] coordination, respectively. The distance Se-O h (1.80 A) is significantly longer than the other Se-O bonds (1.66 to 1.73 A). In Sr 2 Cu(SeO 3 ) 3 , the SrO 8 polyhedra form a three-dimensional network; in Sr 2 Cu(SeO 2 OH) 2 (SeO 3 ) 2 , the SrO 9 polyhedra are edge-linked to form sheets which are connected by CuO 4 squares, SeO 3 groups and the hydrogen bond (O-H...O=2.88 A). (orig.)

A Molecular-line Study of the Interstellar Bullet Engine IRAS05506+2414

Science.gov (United States)

Sahai, Raghvendra; Lee, Chin-Fei; Sánchez Contreras, Carmen; Patel, Nimesh; Morris, Mark R.; Claussen, Mark

2017-12-01

We present interferometric and single-dish molecular line observations of the interstellar bullet-outflow source IRAS 05506+2414, whose wide-angle bullet spray is similar to the Orion BN/KL explosive outflow and likely arises from an entirely different mechanism than the classical accretion-disk-driven bipolar flows in young stellar objects. The bullet-outflow source is associated with a large pseudo-disk and three molecular outflows—a high-velocity outflow (HVO), a medium-velocity outflow (MVO), and a slow, extended outflow (SEO). The size (mass) of the pseudo-disk is 10,350 au × 6400 au (0.64-0.17 M ⊙) from a model-fit assuming infall and rotation, we derive a central stellar mass of 8-19 M ⊙. The HVO (MVO) has an angular size ˜5180 (˜3330) au and a projected outflow velocity of ˜140 km s-1 (˜30 km s-1). The SEO size (outflow speed) is ˜0.9 pc (˜6 km s-1). The HVO’s axis is aligned with (orthogonal to) that of the SEO (pseudo-disk). The velocity structure of the MVO is unresolved. The scalar momenta in the HVO and SEO are very similar, suggesting that the SEO has resulted from the HVO interacting with ambient-cloud material. The bullet spray shares a common axis with the pseudo-disk and has an age comparable to that of MVO (few hundred years), suggesting that these three structures are intimately linked. We discuss several models for the outflows in IRAS 05506+2414 (including dynamical decay of a stellar cluster, chance encounter of a runaway star with a dense cloud, and close passage of two protostars), and conclude that second-epoch imaging to derive proper motions of the bullets and nearby stars can help to discriminate between them.

Posti- ja kaubaveo turvalisusreeglite muudatused peale 11. septembrit 2001 : [bakalaureusetöö] / Marko Pokk ; Tartu Ülikooli Õigusinstituut ; juhendaja: Rene Ringas

Index Scriptorium Estoniae

Pokk, Marko

2007-01-01

Rahvusvahelise tsiviillennundusega tegelevad organisatsioonid ja nende lennundusjulgestusalane tegevus, siseriiklikud õigusaktid ja institutsioonid lennundusvaldkonnas, posti- ja kaubaveo ning -käsitlemise muudatused, problemaatika

Kuidas maikrahv uued rõivad sai. Leopold von Pezoldi "Maikrahvi sissesõit Tallinna" ja Theodor Albert Sprengeli "Reformatsiooni algus Tallinnas" avalik konserveerimine = How the May King got his new clother. Public conservation of Leopold von Pezol

Index Scriptorium Estoniae

Aas, Kristina, 1988-

2015-01-01

Ülevaade baltisaksa kunstnike Leopold von Pezoldi ja Theodor Albert Sprengeli maalidest Suurgildi hoones, nende varasematest restaureerimistest, avalikust konserveerimisest ja tehnilistest uuringutest.

Autoriõiguse küsimusi kunstimuuseumide kogude digitaliseerimisel : [bakalaureusetöö] / Marget Kukk ; Tartu Ülikool, õigusteaduskond ; juhendaja: Kadri Aua

Index Scriptorium Estoniae

Kukk, Marget

2004-01-01

Traditsiooniliste muuseumide olemus ja nende tegevus digitaalsel ajastul, traditsiooniliste kunstiteoste digitaliseerimine autoriõiguse vaatenurgast, muuseumide poolt digitaliseeritud kujutiste kogumi kui andmebaasi kaitse

Tartu slaidimaal : grotesk - mäng või taktika? = Tartu slide painting : grotesque - game or tactics? / Kädi Talvoja

Index Scriptorium Estoniae

Talvoja, Kädi, 1974-

2010-01-01

Tartu slaidimaali esilekerkimine 1980. aastatel oli märk vaimsuse muutustest, avangardile orienteeritud kunstipildi lõhenemisest. See oli eelkõige jutustava elemendiga anekdootlik süžeekunst, mis kasutas sümbolväärstust omavaid kujundeid ja nende absurdset koosmõju vastulausena nende kohta käivale kriitikale, nagu seda Ilmar Kruusamäe "Tühi Liivrand" või "Pühendusega (Ants Juskele)" või Miljard Kilgi "1/2 tundi enne maali alustamist". Vastuseis nõukogude võimule seisnes ka head lääne elu sümboliseerivate moekaupadega epateerimises ja ühtlasi ka neid pilavates absurdinaljades. Ka Tartu ja Tallinna hüperrealismi laine vastuoludest

Accepting the judgments of the Court of Justice of the European Union as authoritative: The Supreme Court of Ireland, the European stability mechanism and the importance of legal certainty / Angelina Cox , Peter Charleton

Index Scriptorium Estoniae

Cox, Angelina

2016-01-01

Iirimaa ja Saksamaa selgelt eristuvast konstitutsioonilisest mudelist. Euroopa Liidu stabiilsusmehhanismi kehtivusest Iiri õiguses. Euroopa Liidu liikmesriikide konstitutsioonikohtutest ja nende vastastikusest toimest Euroopa Kohtuga

Government liquidates secretariat

Index Scriptorium Estoniae

2008-01-01

Läti valitsus kaotab kulude kokkuhoidmiseks Euroopa Liidu fondide sekretariaadi ja Euroopa Liidu Informatsiooni Agentuuri. Nende asutuste ülesanded delegeeritakse rahandusministeeriumile ja Riigikantseleile

Trends and priorities in the development of the Latvian banking services in the context of emerging knowledge based economy : case of e-banking / Valters Kazhe, Ilona Baumane, Erika Shumilo...[jt.

Index Scriptorium Estoniae

2007-01-01

Läti pangateenuste arengutrendidest ja -prioriteetidest teadmistepõhise majanduse kontekstis. Probleemidest Läti finantssektori arengus, e-panganduse teenustest ning nende laiendamise perspektiividest. Joonised

Autogrammid, oma aja märk / Mike Lawrence

Index Scriptorium Estoniae

Lawrence, Mike

2004-01-01

Autogrammide kogumisest, nende ehtsusest, sportlastele kuulunud esemete kollektsioneerimisest. Lisatud: Kollektsionääride maiuspalu. Autor Mike Lawrence on oksjonifirma Bonhams/Brooks konsultant, ajakirjanik

Muscle enhancement using intramuscular injections of oil in bodybuilding

DEFF Research Database (Denmark)

Schäfer, Ch. N.; Hvolris, Jørgen Jesper; Karlsmark, Tonny

2012-01-01

BACKGROUND: Self-administered intramuscular injection of site enhancement oil (SEO) is a cosmetic and performance-enhancing procedure used to reshape muscles in the bodybuilder subculture, but its consequences and complications are only sporadically described. Methods: A systematic search...... in MEDLINE and EMBASE databases during the spring of 2009 and 2010. Internet searches were performed, and bodybuilder pharmacopoeias were consulted to describe SEO use and the clinical complications known. Results: One review and seven case reports were identified. Eight case reports describe oleomas caused...

Účinnost nástrojů internetového marketingu

OpenAIRE

Mynář, David

2016-01-01

This Master´s Thesis characterizes and compares three tools of the performance marketing on the internet - Search Engine Optimization (SEO), Pay-per-click advertising (PPC) and Facebook Ads. The theoretical part analyses specific advantages and limitations of each tool and current trends in the development of these tools. The application part compares SEO, PPC and Facebook in terms of the price and quality of visits. The comparison is performed on the data of 74 clients of the Fresh Services ...

Laste kasvatamisel tekkivate suhete õiguslik regulatsioon ja selle muutmine Eestis : [bakalaureusetöö] / Juta Saarevet ; Tartu Ülikool, õigusteaduskond ; juhendaja: Edgar Salumaa

Index Scriptorium Estoniae

Saarevet, Juta

2003-01-01

Laste kasvatamisel tekkivad suhted ja nende õiguslik regulatsioon, argumendid perekonnaseaduses vanema kasvatusalaste suhete regulatsiooni poolt ja vastu, Saksa perekonnaõiguse analoogi toomine Eesti õiguskorda

Õiguslikud väljakutsed audiovisuaalsete teoste kasutamisel kaabellevivõrgus : [magistritöö] / Katrin Kaljuvee ; Tartu Ülikool, õigusteaduskond ; juhendaja: Aleksei Kelli

Index Scriptorium Estoniae

Kaljuvee, Katrin, 1982-

2013-01-01

Audiovisuaalsetest teostest autoriõigusliku kaitse objektina, autori varalistest õigustest ja nende teostamisest audiovisuaalsete teoste puhul, autoritasude määradest ja tasu maksmise mehhanismidest

Stabilization/solidification of selenium-impacted soils using Portland cement and cement kiln dust

International Nuclear Information System (INIS)

Moon, Deok Hyun; Grubb, Dennis G.; Reilly, Trevor L.

2009-01-01

Stabilization/solidification (S/S) processes were utilized to immobilize selenium (Se) as selenite (SeO 3 2- ) and selenate (SeO 4 2- ). Artificially contaminated soils were prepared by individually spiking kaolinite, montmorillonite and dredged material (DM; an organic silt) with 1000 mg/kg of each selenium compound. After mellowing for 7 days, the Se-impacted soils were each stabilized with 5, 10 and 15% Type I/II Portland cement (P) and cement kiln dust (C) and then were cured for 7 and 28 days. The toxicity characteristic leaching procedure (TCLP) was used to evaluate the effectiveness of the S/S treatments. At 28 days curing, P doses of 10 and 15% produced five out of six TCLP-Se(IV) concentrations below 10 mg/L, whereas only the 15% C in DM had a TCLP-Se(IV) concentration 3 .H 2 O) and selenate substituted ettringite (Ca 6 Al 2 (SeO 4 ) 3 (OH) 12 .26H 2 O), respectively.

Effect of selenium on the Hg, Zn, Fe and Co content of yeast cells

International Nuclear Information System (INIS)

Czauderna, M.; Peplowski, A.; Smolinski, S.

1992-01-01

The yeast cells, Saccharomyces cerevisiae, were exposed to Hg 2+ ions (10 -4 M) and SeO 2 (2x10 -4 -10 -2 M) or Se-methionine (2x10 -4 M). Instrumental neutron activation analysis (INAA) was used to analyze changes in the Hg, Zn,Fe and Co levels in these cells. When the yeast was incubated in a medium containing 10 -3 M and 10 -2 M Se) 2 , the Hg content of the yeast markedly increased. It was also found that the uptake of Se and Hg influenced the levels of Zn, Fe and Co found in the cells. While the presence of Se-methionine (Se-Met), SeO 2 or Hg 2+ ions caused increases in the intracellular Zn levels, the combined presence of Hg 2+ and SeO 2 and their assumed interaction, reduced the efficiency of Se for increasing the Zn content of yeast. (author) 17 refs.; 3 tabs

Rapid, room-temperature synthesis of amorphous selenium/protein composites using Capsicum annuum L extract

Science.gov (United States)

Li, Shikuo; Shen, Yuhua; Xie, Anjian; Yu, Xuerong; Zhang, Xiuzhen; Yang, Liangbao; Li, Chuanhao

2007-10-01

We describe the formation of amorphous selenium (α-Se)/protein composites using Capsicum annuum L extract to reduce selenium ions (SeO32-) at room temperature. The reaction occurs rapidly and the process is simple and easy to handle. A protein with a molecular weight of 30 kDa extracted from Capsicum annuum L not only reduces the SeO32- ions to Se0, but also controls the nucleation and growth of Se0, and even participates in the formation of α-Se/protein composites. The size and shell thickness of the α-Se/protein composites increases with high Capsicum annuum L extract concentration, and decreases with low reaction solution pH. The results suggest that this eco-friendly, biogenic synthesis strategy could be widely used for preparing inorganic/organic biocomposites. In addition, we also discuss the possible mechanism of the reduction of SeO32- ions by Capsicum annuum L extract.

Rapid, room-temperature synthesis of amorphous selenium/protein composites using Capsicum annuum L extract

International Nuclear Information System (INIS)

Li Shikuo; Shen Yuhua; Xie Anjian; Yu Xuerong; Zhang Xiuzhen; Yang Liangbao; Li Chuanhao

2007-01-01

We describe the formation of amorphous selenium (α-Se)/protein composites using Capsicum annuum L extract to reduce selenium ions (SeO 3 2- ) at room temperature. The reaction occurs rapidly and the process is simple and easy to handle. A protein with a molecular weight of 30 kDa extracted from Capsicum annuum L not only reduces the SeO 3 2- ions to Se 0 , but also controls the nucleation and growth of Se 0 , and even participates in the formation of α-Se/protein composites. The size and shell thickness of the α-Se/protein composites increases with high Capsicum annuum L extract concentration, and decreases with low reaction solution pH. The results suggest that this eco-friendly, biogenic synthesis strategy could be widely used for preparing inorganic/organic biocomposites. In addition, we also discuss the possible mechanism of the reduction of SeO 3 2- ions by Capsicum annuum L extract

Populizm dvadtsat pervogo veka / Roberto Lasserna

Index Scriptorium Estoniae

Lasserna, Roberto

2007-01-01

Venezuelas, Boliivias ja Ecuadoris on tekkimas uus poliitiline liikumine, mida nende maade presidendid nimetavad 21. sajandi sotsialismiks, mis tegelikkuses ei erine milleski 20. sajandi sotsialismist

Baltic foreign policy making establishments of the 1990s : influential institutional and individual actors / Ausra Park

Index Scriptorium Estoniae

Park, Ausra

2005-01-01

Poliitiliste institutsioonide ja nende juhtide - presidentide, peaministrite, välisministrite, väliskomisjonide juhtivate poliitikute - rollist Baltimaade välispoliitika kujundamisel aastatel 1990-1999. Tabelid

Archaeological Excavations at Musumägi hill in Viljandi / Riina Rammo, Martti Veldi

Index Scriptorium Estoniae

Rammo, Riina

2005-01-01

Erinevate kultuurkihtide leiumaterjalist, nendes esinenud loomaluudest ja keraamikast. Musta kultuurkihi võib dateerida viikingiaega ja pruun kiht annab tunnistust inimtegevusest mäel veel hilisrauaajal.

Sense of belonging / Tõnu Naelapea

Index Scriptorium Estoniae

Naelapea, Tõnu, 1962-

2009-01-01

Väliseestlastest ja nende kokkukuuluvustundest Eestiga. Artiklis on tsiteeritud president Toomas Hendrik Ilvese kõnet kodakondsustunnistuste kätteandmisel 28. mail 2009 Tallinnas Kumu kunstimuuseumis

Ühtne retsept tööpuudusega võitlemiseks / Jeroen Bult

Index Scriptorium Estoniae

Bult, Jeroen

2010-01-01

Euroopa Liit peaks julgustama liikmesriike rakendama selliseid tegevuskavu, mis muudaksid nende majanduse paindlikumaks ja kaasaaegsetele tingimustele vastavaks, kuna reformid on vajalikud ja vältimatud

Sergei Lukjanenko o "dozorahh", religii i budushtshem nashei planetõ / Sergei Lukjanenko ; interv. Svetlana Tshugunova

Index Scriptorium Estoniae

Лукьяненко, Сергей, 1968-

2006-01-01

Mängufilmi "Öine patrull" ("Notshnoi dozor") jt. filmide aluseks olevate romaanide ning stsenaariumite autor oma raamatutest, kogemustest nende filmideks saamisel ja muudest globaalsematest teemadest

Mõjutusvahendite süsteem erikoolides / Kadri Ann Salla, Kaire Tamm

Index Scriptorium Estoniae

Salla, Kadri Ann

2009-01-01

Erikoolide efektiivsus õpilaste positiivsel mõjutamisel ja käitumisprobleemide vähendamisel sõltub lisaks sekkumisviiside valikule ka nende rakendamise kvaliteedist ning soodsast koolikeskkonnast

SEO Techniques for Business Websites

Directory of Open Access Journals (Sweden)

2007-01-01

Full Text Available In the world of website marketing, search engines are an essential key to success. They are the most important way to bring traffic to websites. Understanding how search engines work and what they require is an important first step to harnessing their marketing power. There are proven methods to search engine marketing involving website design, content adaptation, and keyword strategy. The primary goal of these methods is to bring traffic to your site. The secondary goal is for that traffic to be targeted to your product. In the internet marketing game, exposure is essential. But marketing efficiency requires effective exposure to the right prospects.

SEO Techniques for Business Websites

Directory of Open Access Journals (Sweden)

Alexandru ENACEANU

2010-09-01

Full Text Available In the world of website marketing, search engines are an essential key to success. They are the most important way to bring traffic to websites. Understanding how search engines work and what they require is an important first step to harnessing their marketing power. There are proven methods to search engine marketing involving website design, content adaptation, and keyword strategy. The primary goal of these methods is to bring traffic to your site. The secondary goal is for that traffic to be targeted to your product. In the internet marketing game, exposure is essential. But marketing efficiency requires effective exposure to the right prospects.

Life on the edge: navigating the competitive tensions between the 'social' and the 'economic' in the social economy and in its relations to the mainstream

OpenAIRE

Ray Hudson

2009-01-01

Drawing on detailed empirical research in the UK, in this article I explore the motivations that lie behind the formation of social economy organisations (SEOs) and the multiple trajectories that these can then follow and the tensions to which this can give rise as the ‘social’ runs up against the ‘economic’. This can, and often does, involve competition between SEOs in limited local markets and in search of state grant income. For those that seek to transcend these limits, the tensions betwe...

Histomorfometría ósea: las variables histomorfológicas y su relación con la edad

OpenAIRE

Desántolo, Bárbara

2013-01-01

La histomorfometría permite la valoración cuantitativa del tejido óseo mediante el recuento y medición de variables microestructurales. El objetivo del siguiente trabajo consiste en determinar la relación y el grado de asociación entre la edad y las variables histomorfológicas del tejido óseo cortical del fémur. Para ello se analizaron 71 fémures de individuos adultos perteneciente a la Colección Osteológica “Prof. Dr. Rómulo Lambre”.

Diversidad de peces demersales en la plataforma continental del Ecuador

OpenAIRE

Coello, D.; Herrera, M.

2010-01-01

A partir de información colectada de cuatro cruceros de investigación a bordo del B/l Tohalli, se analiza la diversidad de peces óseos y elasmobranquios presentes en la plataforma continental del Ecuador. Los valores medios de diversidad estimados indican que tanto las poblaciones de peces óseos y condrictios demersales hasta los 120 m de profundidad presenten heterogeneidad, con un grado significativo de organización. Las fluctuaciones en el índice de diversidad en las diferentes subáreas y ...

Estrategia de posicionamiento digital de un negocio

OpenAIRE

Soria Calpe, Alexia

2015-01-01

Diseño y creación de una web, optimización SEO , estrategias de marketing on -line. This project approaches the digital world to small businesses, creating strategies for them in a digital world. Successfully using SEO positioning techniques to develop a brand new Website that suits users needs. Followed by Online Marketing strategies, SEM, to accomplish business growth. Realización de una estrategia de posicionamiento digital y creación de una Web para un negocio. Comenzando por el des...

Some information about the Division of Uralic Languages

Index Scriptorium Estoniae

1996-01-01

Lühiülevaade Tartu Ülikooli uurali keelete osakonna teadusprojektidest, teaduskonverentsidest ning akadeemilisest personalist, doktorantidest, nende väitekirjade ja publikatsioonide nimekiri 1995.-1996. aastast

Rights, interveners and the Law Lords / Sangeeta Shah, Thomas Poole, Michael Blackwell

Index Scriptorium Estoniae

Shah, Sangeeta

2014-01-01

Suurbritannia kõrgeimast kohtust - Lordide Kojast (House of Lords) ning 1994.-2009. aastal tehtud kohtuotsustest. Samuti Apellatsioonikomitee liikmetest - law lord'idest ja nende sekkumisest otsuste tegemisse

Rahvusvahelise Õiguse Assotsiatsiooni aastakoosolek / Robert Nelson

Index Scriptorium Estoniae

Nelson, Robert

1986-01-01

Nõukogude Rahvusvahelise Õiguse Assatsiooni 29. aastakoosolek toimus Moskvas. Rein Müllerson esines ettekandega "Rahvusvaheline avalik ja rahvusvaheline eraõigus, nende vahekord ning vastastikune mõju"

Toward cooperative security? International integration and the construction of security in Estonia / Merje Kuus

Index Scriptorium Estoniae

Kuus, Merje

2002-01-01

Autor leiab, et Eesti ühinemine rahvusvaheliste organisatsioonidega on suures osas seotud julgeolekupoliitiliste kaalutlustega. Võimalikud ohud rahvuslikule julgeolekule ja võimalikud vastumeetmed nende vältimiseks

Nahkne stressimaandus / Kristjan Arunurm

Index Scriptorium Estoniae

Arunurm, Kristjan

2008-01-01

Vaikla Stuudio sisearhitektidest Tüüne-Kristin ja Urmo Vaiklast, nende kujundatud meestesalongist "Skin" Tallinnas Narva maanteel. Sisearhitektide kommentaarid. 5 värv vaadet, fotod sisearhitektidest

Suur pagu 1944 : lehekülgi "Eesti kroonikast" I-IV / Johannes Äro ; fotod: Holmert; Suurallik; Otto Aaviku kogust; E. Epner

Index Scriptorium Estoniae

Äro, Johannes

1995-01-01

Eestist põgenemisest, põgenike elust Rootsis, põgenikelaagritest, töökohtade leidmisest, rootslaste suhtumisest põgenikesse, eestlaste kohanemisest Rootsis ja nende majanduslikust ettevõtlusest

Tootja vabanemine vastutusest puudusega tootest põhjustatud kahju korral / Margus Kingisepp

Index Scriptorium Estoniae

Kingisepp, Margus, 1969-

2012-01-01

Tootjat vastutusest vabastavate klauslite kohaldamise eeltingimustest ja nende kohaldamissfäärist Eesti kehtivas õiguses. Euroopa Liidu tootevastutuse direktiivist (85/374/EMÜ) ja Euroopa Kohtu praktikast

Flights of shame or dignified return? Return flights and post-return monitoring / Jari Pirjola

Index Scriptorium Estoniae

Pirjola, Jari

2015-01-01

Rahvusvahelistest inimõiguste normidest tagasipöördumise lendudel. Rahvusvaheliste organisatsioonide ja rahvusvaheliste järelevalveasutuste loodud standarditest ning nende rakendamisest tagasipöördumise lendudel

Esimesed läti naismaalikunstnikud 20. sajandi alguses = The first Latvian female painters in the early 20th century / Baiba Vanaga

Index Scriptorium Estoniae

Vanaga, Baiba, 1981-

2014-01-01

Läti kunstiharidusest ja kunstikoolidest 20. sajandi alguses. Naiste kunstihariduse kvaliteedist, nende mõjutajatest, kunstilisest stiilist, arenguteedest ning naiste tegelikust kohast oma aja kunstiväljal.

The Parliamentary Legislative Process in the Accession Countries of the Western Balkans / Zsolt Szabó

Index Scriptorium Estoniae

Szabó, Zsolt

2015-01-01

Õigusaktide menetlemisest ja vastuvõtmisest Balkani riikide parlamentides. Ka põhiandmed nende riikide parlamentide kohta (parlamendi ingliskeelne ja omakeelne nimetus, liikmete ja komiteede arv jne)

Die deutschbaltische Minderheit in der Republik Estland von 1918 bis 1940 / Kaido Laurits

Index Scriptorium Estoniae

Laurits, Kaido

2011-01-01

Kultuurautonoomia seadusest ja saksa kultuurautonoomiast, baltisaksa haridus- ja kultuurielust. Maal elavatest baltisaksalastest ja nende põllumajanduslikust olukorrast. Linnades leanud baltisakslastest. Rahvustevahelistest suhetest Eestis 1930ndatel aastatel.

Sotsiaalliberaalid plagieerivad Keskerakonda / Ramon Loik

Index Scriptorium Estoniae

Loik, Ramon

2004-01-01

Eesti Keskerakonnast eraldunud sotsiaalliberaalide saadikurühma poliitilise manifesti analüüs. Autori hinnangul on enamus nende seisukohti Keskerakonna programmilised seisukohad ümbersõnastatud kujul

Juhan Parts : mina olen ka kodanikuühiskond / Juhan Parts ; interv. Kertu Ruus

Index Scriptorium Estoniae

Parts, Juhan, 1966-

2003-01-01

Peaminister Juhan Parts vastab küsimustele kodanikuühenduste, nende rolli, toetamise, koalitsioonileppe avaliku arutamise, valitsuse ja kodanikuühenduste ühiskomisjoni moodustamise, annetamise kohta

Effect of salinity on Brassica rapa var. toria (BRSRT under selenium defence: A trial to assess the protective role of selenium

Directory of Open Access Journals (Sweden)

Akanksha SAO

2017-12-01

Full Text Available The present study assesses the role of selenium, an antioxidant in salt-stressed plants. A hydroponic trial of sodium selenate (Na2SeO4 on the growth, oxidative stress and antioxidant protection system of Brassica rapa var. toria (BRSRT plant was studied. 40 µmol and 100 µmol of Na2SeO4 were hydroponically applied to BRSRT roots with 50 mmol and 100 mmol sodium chloride (NaCl for 12 days. Plant growth, biomass production and photosynthetic pigments at 100 mmol salt stress was inhibited while oxidative stress indicators, for example, hydrogen peroxide and lipid peroxidation were stimulated. Supplementation of 40 µmol Na2SeO4 with 50 mmol and 100 mmol NaCl improved growth, photosynthetic pigments and acted as an antioxidant by inhibiting lipid peroxidation and increasing superoxide dismutase, ascorbate peroxidase, catalase, glutathione peroxidase, glutathione reductase activities. The in-gel assays also showed enhanced activities of these enzymes. At 100 µmol concentration, selenium under salt stress, repressed growth and expression of antioxidant enzymes and stimulated oxidative stress with enhanced glutathione peroxidase activity. Under consolidated stress treatment, an addition of 40 µmol Na2SeO4 was the most effective for both NaCl concentrations. The finding reveals that the optimal selenium supplementation presents a promising potential for use in conditions of relatively high levels of NaCl stress for BRSRT seedlings.

Syntheses and structures of three f-element selenite/hydroselenite compounds

International Nuclear Information System (INIS)

Burns, Wendy L.; Ibers, James A.

2009-01-01

The selenite/hydroselenite compounds Ce(SeO 3 )(HSeO 3 ), Tb(SeO 3 )(HSeO 3 ).2H 2 O, and Cs[U(SeO 3 )(HSeO 3 )].3H 2 O were synthesized by hydrothermal means at 453 K from the reaction of CeO 2 or Tb 4 O 7 or UO 2 with SeO 2 and CsCl (as a mineralizer). Ce(SeO 3 )(HSeO 3 ) crystallizes in the non-centrosymmetric orthorhombic space group Pca2 1 . The structure comprises a two-dimensional network of interconnected CeO 10 bicapped distorted square antiprisms and SeO 3 trigonal pyramids. Tb(SeO 3 )(HSeO 3 ).2H 2 O crystallizes in the non-centrosymmetric orthorhombic space group P2 1 2 1 2 1 . The structure features a two-dimensional layer of interconnected TbO 8 distorted square antiprisms and SeO 3 trigonal pyramids. Cs[U(SeO 3 )(HSeO 3 )].3H 2 O crystallizes in the centrosymmetric monoclinic space group P2 1 /n. The structure consists of two-dimensional layers of interconnected UO 7 pentagonal bipyramids and SeO 3 trigonal pyramids. The layers in all three structures are held together by hydrogen-bonding networks. - Graphical abstract: Structure of Ce[U(SeO 3 )(HSeO 3 )].3H 2 O (Cs, purple; U, black; Se, blue; O, red; O w , green; H, gray).

Extensión del límite austral de distribución de tres especies de peces óseos tropicales en la costa de la Provincia de Buenos Aires, Argentina Southern extension of three species of tropical bony fishes along the coast of Buenos Aires Province, Argentina

Directory of Open Access Journals (Sweden)

Andrés C Milessi

2012-11-01

Full Text Available Se presentan tres nuevos registros de especies de peces óseos cuya distribución corresponde a aguas tropicales, capturados por buques pesqueros en la costa de la Provincia de Buenos Aires, Argentina (CPBA, 36°-38°S. Los ejemplares corresponden a las especies: Rachycentrum canadum, Elops saurus y Caulolatilus chrysops. Estos registros amplían significativamente el límite austral de su distribución. La presencia ocasional de estas especies está asociada al transporte de agua subtropical cálida proveniente de la plataforma continental brasilera. Esta hipótesis es probada mediante el análisis de imágenes satelitales de temperatura superficial del mar.We document the southern records of three species of tropical bony fishes along the coast of Buenos Aires Province, Argentina (CBAP, 36-38°S. Rachycentrum canadum, Elops saurus and Caulolatilus chrysops were caught by bottom-trawl commercial vessels. Records presented here significantly extend southward their latitudinal distribution from those previously reported. Using sea surface temperature satellite images we show a southward warm circulation event from Brazil as a putative factor to explain the occurrence of these bony fishes in the CBAP.

Eesti kodanikuühendused alkoholipoliitika kujundamisel / Kersti Kollom

Index Scriptorium Estoniae

Kollom, Kersti

2007-01-01

Kodanikuühenduste seas läbi viidud uuringust, nende hinnangust riiklikule alkoholipoliitikale ja kodanikuühenduste osast selle kujundamisel. Alkoholi liigtarvitamisega kaasnevatest probleemidest Eestis, alkoholipoliitika hetkeseisust

Lepingulised suhted autoriõiguste kollektiivse esindamise organisatsiooni ja teoste kasutajate vahel : [bakalaureusetöö] / Madis Saar ; Tartu Ülikool, õigusteaduskond ; juhendaja: Kadri Aua

Index Scriptorium Estoniae

Saar, Madis

2003-01-01

Autoriõiguste kollektiivne teostamine ja kollektiivse esindamise organisatsioon, nende volitused lepingute sõlmimisel teoste kasutajatega, litsentsileping ja õiguste loovutamise leping kollektiivse esindamise organisatsiooni ja teose kasutaja vahel

OECD - kvaliteedimärk kogu riigile / Keit Kasemets

Index Scriptorium Estoniae

Kasemets, Keit

2010-01-01

Majanduskoostöö ja Arengu Organisatsiooni (OECD) liikme staatus loob Eesti majanduspoliitika ja teiste oluliste poliitikate arendamisel uusi võimalusi. OECD faktides, praegused liikmesriigid ja nende liitumisaeg

Arthur von Oettingen ja tema orthtonophonium oma aja kontekstis / Karl Traugott Goldbach ; tõlkinud Anu Sõõro ; toimetanud Mart Humal

Index Scriptorium Estoniae

Goldbach, Karl Traugott, 1974-

2009-01-01

Arthur von Oettingen kuulus nende arvukate 19. sajandi lõpu õpetlaste hulka, kes otsisid muusikateooriale eksperimentaalset tuge. Oluliseks instrumendiks olid siin puhta häälestusega harmooniumid.

Ubiitsa globalizatsii / Branko Milanovic

Index Scriptorium Estoniae

Milanovic, Branko

2006-01-01

Globaliseerumist ohustavatest teguritest. Autor leiab, et globaliseerumise jätkumiseks tuleb neil riikidel, kus on suured erinevused inimeste keskmiste sissetulekute vahel, leida võimalusi nende ühtlustamiseks

Eesti aja arhitektuur : Eugen Habermann 125. Herbert Johanson 125 / Ike Volkov

Index Scriptorium Estoniae

Volkov, Ike, 1951-

2010-01-01

Näitus Eesti Arhitektuurimuuseumis 04. 12. 2009-07. 03. 2010. Eugen Habermannist ja Herbert Johansonist, nende tegevusest ja loomingust. Selle aja ja praegustest probleemidest ning lahendusvõimalustest

Pisike mikrobuss toob kinnisvarateenuse inimestele lähemale / Ronald Nermann ; interv. Aive Antsov

Index Scriptorium Estoniae

Nermann, Ronald

2006-01-01

Haabersti Maja nõukogu esimees tutvustab kinnisvarabussi, ettevõtte ainulaadset ratastel kontorit, mida võib kohata nii laatadel kui nende klientide juures, kellel on keeruline minna tavakontorisse

Joobes mootorsõiduki juhtide karistamine ning ennetusmeetmed Eestis, Rootsis, Soomes ja Venemaal : [magistritöö] / August Käära ; Tartu Ülikool, õigusteaduskond ; juhendaja: Silvia Kaugia

Index Scriptorium Estoniae

Käära, August

2011-01-01

Alkoholi- ja narkojoobe ning -sõltuvuse olemusest ja joobe õigustamise sotsiaalsetest teooriatest, karistamise alustest mootorsõiduki joobes juhtimise eest, sotsiaalprogrammidest - nende analüüsist ja ennetusmeetmetest

Pierre Huyghe' lavastatud pidustused äärelinnas, Antarktikas ja arhitektuuris / Margit Säde

Index Scriptorium Estoniae

Säde, Margit

2007-01-01

Reykjaviki Kunstimuuseumis Hafnarhusis olevast Pierre Huyghe' näitusest "Live show as exhibition", kus ta multidistsiplinaarse kunstnikuna kasutab eri meediume vastavalt nende sobivusele töö kontseptsiooniga

Uus õpik julgustab maailma parandama / Triin Vihalemm, Margit Keller, Maie Kiisel ; intervjueerinud Annela Laaneots

Index Scriptorium Estoniae

Vihalemm, Triin, 1968-

2013-01-01

Intervjuu Tartu Ülikooli ajakirjanduse ja kommunikatsiooni instituudi õppejõudude Triin Vihalemma, Margit Kelleri ja Maie Kiiseliga nende e-õpikust "Kuidas parandada maailma? Kommunikatsioon sotsiaalsete muutuste kujundamisel"

Caracterización mecánica de estructuras macroporosas fabricadas por extrusión aditiva de pasta cerámica

OpenAIRE

González, Borja

2015-01-01

Los materiales destinados a la regeneración del tejido óseo han sido desarrollados durante las últimas décadas debido al incremento de enfermedades óseas motivadas por el envejecimiento de la población. Recientes trabajos en el campo de la ingeniería de tejidos se centran en este campo, concretamente en los cementos de fosfato de calcio y en su procesado como andamios usando técnicas de manufactura aditiva para conseguir injertos o materiales de relleno óseo con una adecuada os...

Desarrollo patológico del hueso temporal : Descripción desde una perspectiva interdisciplinaria

OpenAIRE

García Mancuso, Rocío; Predes, Santiago; Leyes, Adriana; Plischuk, Marcos; Desántolo, Bárbara; Hijano, Julio César; Errecalde, Ana Lía; Inda, Ana María

2014-01-01

En los casos de hallazgos de restos óseos infantiles y en particular fetales y neonatales tanto en contextos arqueológicos, como forenses y paleontológicos, el hueso temporal constituye uno de los elementos mejor preservados. Las características intrínsecas (tamaño, forma y densidad) de la porción petrosa hacen que frecuentemente sea el único registro del cráneo que se preserva en el tiempo. En los casos en los que se encuentran restos óseos correspondientes al período pre y postnatal tempran...

El estrés oxidativo como posible diana terapéutica en la osteoporosis asociada al envejecimiento

OpenAIRE

Portal-Núñez, S.; de la Fuente, M.; Díez, A.; Esbrit, P.

2016-01-01

La osteoporosis senil o involutiva es un problema de primera magnitud en el mundo desarrollado. Estudios recientes apuntan al aumento del estrés oxidativo asociado al envejecimiento -cronológico o biológico- como un factor importante en su desarrollo. En esta revisión nos centraremos en las alteraciones del tejido óseo con la edad, en el origen del estrés oxidativo y su influencia negativa en el tejido óseo. Finalmente, abordaremos las posibles terapias antiestrés oxidativo que actualmente se...

SEB Panga kliendikeskkond = SEB Bank customer environment

Index Scriptorium Estoniae

2011-01-01

Tallinnas Kristiine keskuses asuva SEB pangakontori sisekujundusest. Autorid: Eero Jürgenson, Andres Jomp, Rene Safin (ARS Projekt), loetletud nende tehtud töid. SEB uue disainikontseptsiooni esimene rakendus

Kohvik MAMO = Café MAMO / Hannes Praks

Index Scriptorium Estoniae

Praks, Hannes, 1973-

2010-01-01

Kohvik Mamo Tallinnas Liivalaia tänaval. Ruum sisustati taaskasutatavate esemetega, nende päästmisest purustamisest. Sisekujundaja: Hannes Praks (Kohvi OÜ). Ruumi graafika ja joonistused: Jan Tomson

Ettevõtlus, konkurents ja riskid hariduselus / Toomas Saal

Index Scriptorium Estoniae

Saal, Toomas

2002-01-01

Autori hinnangul on kahetsusväärne, et riik kulutab raha riigi omanduses olevate õppeasutuste ülalpidamiseks sõltumata nende asutuste poolt pakutava hariduse kvaliteedist. Kutsehariduskonseptsioon EC/NOR

Eesti tarbijad on kõige optimistlikumad / Hille Tressum

Index Scriptorium Estoniae

Tressum, Hille

2008-01-01

Ilmunud ka: Delovõje Vedomosti 6. aug. lk. 9. Balti kaubanduskontserni Maxima Groupi poolt tellitud tarbijauuringu tulemustest. 62% Eestis küsitletuist arvas, et majanduslangus muudab nende tarbimisharjumusi

Põhja-Korea lubas taas jätta tuumaplaanid / Jürgen Tamme

Index Scriptorium Estoniae

Tamme, Jürgen

2007-01-01

Pekingis toimunud kuuepoolsete desarmeerimiskõneluste tulemusena on Põhja-Korea nõus andma ülevaate riigi tuumarajatistest ning alustama nende likvideerimist. 14. juulil suleti Yongbyoni tuumakeskuse reaktor. Lisa: Tuumavaidlus

The increase in cohabitation and the role of union status in family policies: A comparison of 12 European countries / Nora Sánchez Gassen, Brienna Perelli-Harris

Index Scriptorium Estoniae

Sánchez Gassen, Nora

2015-01-01

Artiklis käsitletakse koos elavate, kuid abielus mitteolevate inimeste arvukust, nende õigusi/õigusetust 12 Euroopa riigis (sh Eesti), aluseks Euroopa sotsiaaluuringu andmed ning autorite moodustatud poliitika andmebaas

Naine kopistina. 19. sajandi baltisaksa maalijannad / Kadi Polli

Index Scriptorium Estoniae

Polli, Kadi, 1973-

2005-01-01

Naise kunstianne ja kunstiterritooriumid. Dresden kui 18.-19. sajandi vahetuse kunstikeskus. Pikemalt Louise Seidleri (1786-1866), Henriette Wiedebuschi, Julie Hagen-Schwarzi loomingust, nende töödest Eestis

Kogeja vormistamine eesti keeles : nihkeid SAE perifeerias / Mati Erelt, Helle Metslang

Index Scriptorium Estoniae

Erelt, Mati, 1941-

2008-01-01

Vaadeldakse kogeja vormistamist ning alternatiivsete mallide kasutust ajakirjanduskeeles ajavahemikul 1995-2005. Püütakse välja selgitada toimunud muutused ja nende põhjused. SAE - Euroopa keskmine standard

Kaks hõbekeelset kannelt helisemas taas ... / Liina Saarlo

Index Scriptorium Estoniae

Saarlo, Liina, 1974-

2012-01-01

Eesti regilaulukogude "Vana Kannel" 9. ja 10. osa ilmumise puhul vaadatakse tagasi sarja ilmumise ajalukku - Jakob Hurda esimestest kogudest ja nende koostamispõhimõtetest alates, visandatakse ka tulevikuplaane

ÜRO süüdistab USA-d piinamises ja nõuab Guantanamo laagri sulgemist / Krister Paris

Index Scriptorium Estoniae

Paris, Krister, 1977-

2006-01-01

ÜRO inimõiguste komisjoni esindajad uurisid Guantanamo vanglast vabanenutelt, nende advokaatidelt ja arstidelt vangide kohtlemist Guantanamos. Uurimise raportist. Lisa: Vanglat aitavad täita pearahakütid

Gothic bindings and their restoration / Endel Valk-Falk

Index Scriptorium Estoniae

Valk-Falk, Endel, 1932-

2008-01-01

Gooti stiilist köitekunstis, kahjustustest keskaegsetel köidetel ja nende restaureemisest TA Raamatukogus. Ettekannete teesid konverentsilt ICOM Committee for Conservation 5th Triennial Meeting, Zagreb, 1978

Õigusharidus kaalukausil : kuidas tagada paindlikkus? / Jan Klabbers ; tõlkija Rain Liivoja

Index Scriptorium Estoniae

Klabbers, Jan

2008-01-01

Õigusteaduse õppekavade kolmest arengusuunast, milleks on õigusteooria, praktilised oskused ja rahvusvaheline avalik õigus, mis seavad esikohale üliõpilaste ja mitte nende tööandjate vajadused

Meri levitas dokumente Greeni mineviku kohta / Toomas Sildam, Kalle Muuli

Index Scriptorium Estoniae

Sildam, Toomas, 1961-

2001-01-01

Ühe jõustruktuuri ametnikud otsisid riigiarhiivi filiaalis Greeni puudutavaid dokumente ning Presidendi Kantselei saatis nende koopiad ajalehtedele avaldamiseks. President Lennart Meri õnnitluskiri Arnold Greenile 30. augustil 1995

Omandiseadus ; Property Law of the Republic of Estonia

Index Scriptorium Estoniae

1990-01-01

Eraomand, juriidilise isiku omand, munitsipaalomand, Eesti Vabariigi omand, ühine omand, teiste riikide, nende kodanike ja organisatsioonide, rahvusvaheliste organisatsioonide ning kodakondsuseta isikute omand. Kehtib alates 1. juulist 1990

Kuritegelikud ühendused: müüdid ja tegelikkus / Aro Siinmaa

Index Scriptorium Estoniae

Siinmaa, Aro, 1973-

2015-01-01

Kuritegelikest ühendustest ja nende mõistest organiseeritud kuritegevuse kriminaalasjade kohtueelseid menetlusi juhtiva ja kohtutes süüdistust esindava prokuröri vaatenurgast. Kuritegelik ühendus kohtupraktikas

Globaalsus + lennundus = Star Alliance? / Ain Hinsberg

Index Scriptorium Estoniae

Hinsberg, Ain

2002-01-01

Erinevad koostöövormid lennufirmade vahel, alliansside teke ja areng maailmas. Maailma juhtivad lennundusalliansid ja nende poolt kaetud riigid ja sihtkohad. Kommenteerib Estonian Airi president Erki Urva

Saksa investor loobus RERi pakkumuses osalemisest / Andres Reimer

Index Scriptorium Estoniae

Reimer, Andres

2000-01-01

Raudtee Erastamise Rahva ASi välisinvestorikandidaat Saksa riigiraudtee Deutsche Bahn loobus Eesti Raudtee erastamisel osalemisest nende strateegilise investorina. Ilmunud ka: Delovõje Vedomosti 13. sept. lk. 9

Kohtueelses menetluses tunnistaja antud ütlused tõenditena kohtumenetluses : [magistritöö] / Margus Lellep ; Tartu Ülikool, õigusteaduskond ; juhendaja: Meris Sillaots

Index Scriptorium Estoniae

Lellep, Margus

2010-01-01

Tunnistaja ütluste tekkimisest, kohtuväliste ütluste tõendina kasutamise tingimustest kohtumenetluses ja nende tõendusliku väärtuse problemaatikast, võimalikest lahendustest probleemide lahendamisel

Vadim Kotelnikovi tugevus on loovus / Marjatta Pietilä

Index Scriptorium Estoniae

Pietilä, Marjatta

2004-01-01

E-coaching teenuseid pakkuvast ülemaailmsest ettevõtete ketist TEN3, firmast Centre for Entrepreneurial Creativity and Systemic Innovation ning nende loojast majandusdoktor Vadim Kotelnikovist. Lisa: Vadim Kotelnikov

Tõkestatud muuduga funktsioonid ja Stieltjesi integraal = On functions of bounded variation and the Stieltjes integral : II koht bakalaureusetööde kategoorias / Liis Rudov

Index Scriptorium Estoniae

Rudov, Liis

2009-01-01

Artikli aluseks on samateemaline bakalaureusetöö, milles käsitleti tõkestatud muuduga funktsioone ning nende funktsioonidega tihedalt seotud Stieltjesi integraali, mis on Riemanni integraali üldistus

Taani viib õpilaste testimise Internetti / Jacob Wandall ; intervjueerinud Raivo Juurak ; kommenteerinud Anti Teepere

Index Scriptorium Estoniae

Wandall, Jacob

2009-01-01

Ülevaade adaptiivtestidest ja nende rakendamise kavadest Taani põhikoolis. Vestlus Taani haridusministeeriumi koolivalitsuse peaspetsialist Jacob Wandalliga, kommenteerib REKK-i üldhariduse õppekavade ja eksamite osakonna peaspetsialist Anti Teepere

Patud investori aktsiaportfellis / Raivo Sormunen

Index Scriptorium Estoniae

Sormunen, Raivo, 1976-

2005-01-01

Patuaktsiateks (sinful stocks) nimetatakse nende ettevõtete väärtpabereid, mille tegevuses leidub ebaeetilisi või moraalivastaseid külgi. Tabel: Maailma suurimad ebaeetilised ja moraalivastased ettevõtted

Asja säilimiseks vajalike toimingute tegemine kaasomandis oleva asja suhtes / Kaupo Paal

Index Scriptorium Estoniae

Paal, Kaupo, 1977-

2016-01-01

Asjaõigusseaduse § 72 lg 4 tõlgendamisest, asja säilitamiseks vajalikest toimingutest ja nende toimingute piiridest ning kaasomandi säilimiseks vajalike toimingute tegemise erisustest korteriomandi puhul

Intellektuaalomand ja selle kuuluvus tarkvaraarenduslepingutes : [magistritöö] / Taavi Viilol ; Tartu Ülikool, õigusteaduskond ; juhendaja: Mario Rosentau

Index Scriptorium Estoniae

Viilol, Taavi

2014-01-01

Mõistetest, eritarkvara arenduslepingutest, intellektuaalomandi seadusjärgsest kuuluvusest, käsutatavatest IO õigustest ja nende üleminekust, autoriõigusest, kaubamärgiseaduse kohaldatavusest tarkvarale, tööstusdisainilahendusest, patendist

Kes kannab eakale vajalike sotsiaalteenuste kulud? Kohaliku omavalitsuse ja perekonna kohustused eakale vajalike sotsiaalteenuste rahastamisel / Liis Arrak, Aigi Kivioja

Index Scriptorium Estoniae

Arrak, Liis

2017-01-01

Perekonna ülalpidamiskohustusest ja riigi kohustusest sotsiaalteenuste osutamisel. Kohaliku omavalitsuse rollist ülalpidamiseks kohustatud isikute ja nende kohustuse ulatuse väljaselgitamisel. Eaka inimese ülalpidamisest. Sisaldab asjakohast kohtupraktikat

Transitional narratives of identity among ethnic minority youth gangs in Denmark: from collectivism to individualism / Torsten Kolind, Thomas Friis Søgaard, Geoffrey Hunt, Birgitte Thylstrup

Index Scriptorium Estoniae

Kolind, Torsten

2017-01-01

Kopenhaageni rahvusvähemuses olevate meeste seas läbi viidud etnograafilisest uuringust, nende võimalustest hoida eemale jõukudesse kuulumisest, kriminaalsusest, nakrootikumide tarvitamisest ja müümisest

Düsseldorf - Estland : die Modernisierungsbewegung in der religiösen Kunst um 1900 / Mai Levin

Index Scriptorium Estoniae

Levin, Mai, 1942-

2011-01-01

Düsseldorfis õppinud maalikunstnikest. Eestiga seotud baltisaksa ja vene kunstnikest, nende religioosse sisuga maaliloomingust 19. saj. ja 20. saj. alguses. Pikemalt Eduard von Gebhardtist, Kristjan Rauast ja Paul Rauast

Aukartus võimu ees / Ivar Tallo

Index Scriptorium Estoniae

Tallo, Ivar, 1964-

2004-01-01

Autori arvates valitseb Eestis olukord, kus tegelikke otsuseid langetatakse väljaspool otsustamise mehhanisme ning otsuste formaalsed tegijad ja nende eest vastutajad on erinevad inimesed. Erakondlik poliitika ja poliitikud

Argentina - Estonija. Metshta i realnost / Galina Balashova

Index Scriptorium Estoniae

Balashova, Galina

2006-01-01

Argentiina fotograafi Marcos Lopez'i ja eesti fotograafi Peeter Lauritsa ühisnäitusest "Lopez & Laurits" Tallinna Kunstihoones. Kuraator Reet Varblane ja kujundaja Rosita Raud. Fotograafidest ja nende loomingust

Professional preparation of teachers - problems and possibilities. The Estonian case / Katrin Poom-Valickis, Ülle Saarits, Helle Sikka... [jt.

Index Scriptorium Estoniae

2008-01-01

Artikkel kirjeldab õpetajakoolituse olukorda Eestis aastal 2003. Aineõpetajate, klassiõpetajate ja koolieelsete lasteasutuste õpetajate ettevalmistusest Tallinna Ülikoolis ning nende karjääriperspektiive tööturul

Internationalisation of Estonian banking / Mart Sõrg

Index Scriptorium Estoniae

Sõrg, Mart, 1943-

2002-01-01

Välispankade osaluse suurenemine Eesti pankades ja selle mõjust nende arengule. Tabelid: Eesti kommertspankade suurimad aktsionärid; Aasia ja Venemaa kriiside aegsed kasuminäitajad Eesti kommertspankades

Kogeja vormistamine eesti keeles : nihkeid SAE perifeerias / Mati Erelt, Helle Metslang

Index Scriptorium Estoniae

Erelt, Mati, 1941-

2008-01-01

Artiklis vaadeldakse kogeja vormistamist ning alternatiivsete mallide kasutust ajakirjanduskeeles ajavahemikul 1995-2005 eesmärgiga välja selgitada toimunud muutused ning nende põhjused. SAE - Euroopa keskmine standard

Vene sõdurid harjutavad Rootsis kriisis toimetulekut / Anu Kaupmees

Index Scriptorium Estoniae

Kaupmees, Anu

2006-01-01

19.-26. jaanuaril toimuvad Rootsis "Operatsioon Lumehelbeke" nime kandvad Vene 138. motoriseeritud laskurbrigaadi kriisiõppused, mis peaksid Rootsi kaitsejõudude hinnangul suurendama nende sõjaväelaste kogemusi rahuvalves

Millist innovatsioonimudelit vajame / Tõnis Mets

Index Scriptorium Estoniae

Mets, Tõnis, 1952-

2004-01-01

Lühiülevaade innovatsioonimudelitest ja nende käsitlusest innovatsiooniprotsessis; väikeriigi innovatsioonisüsteemi mõjutavatest teguritest; nõuetest Eesti innovatsioonimudelile; innovatsiooniprotsessi arenguvõimalustest Eestis. Skeemid

Vastaspoolte inimkaotustest Narva rindel 1944. aasta 24. juulist kuni 7. augustini (Narva ja Sinimägede lahingud) / Artjom Astafjev, Andrus Kütt, Reigo Rosenthal

Index Scriptorium Estoniae

Astafjev, Artjom

2015-01-01

Fotod dokumentidest ja tabelid inimkaotustest. Kokkuvõttes võib Punaarmee kaotusi nendes lahingutes hinnata 35 000 inimesele, Saksa vägede kaotusi hinnatakse umbes 10100 inimeseni. Andmed on ligikaudsed

Laenuriskid Eestis ühiskonna sotsiaalmajanduslike muutuste kontekstis : [magistritöö] / Evelin Tartlan ; Tartu Ülikool, õigusteaduskond ; juhendaja: Silvia Kaugia

Index Scriptorium Estoniae

Tartlan, Evelin

2010-01-01

Eesti pangandusest ja laenuturust, krediidiasutustest ja nende tegevust reguleerivatest õigusaktidest, laenuturu toimimispõhimõtetest, pangalaenudega kaasnevatest sotsiaalmajanduslikest probleemidest tänases Eestis, meetmetest katastroofi vältimiseks ja leevendamiseks

Kas me oleme üksi kogu universumis? Pigem siiski mitte / Krister Paris

Index Scriptorium Estoniae

Paris, Krister, 1977-

2008-01-01

See, et inimkond pole veel mujalt eluvorme leidnud, ei tähenda nende puudumist. Populaarteaduslike astronoomiateostega tuntust kogunud Stephen Hawking usub, et elu lihtsalt peab eksisteerima ka mujal maailmaruumis

Johani ja Anna-Liisa vana valge / Agneta Land-Koskinen

Index Scriptorium Estoniae

Land-Koskinen, Agneta

2007-01-01

Renoveeritud vanas majas asuv korter, kus seinad on valged, mis on antiiksetele esemetele ja huvitavatele disainileidudele parimaks taustaks. Kultusobjektideks valgustid, nende hulgas ka Verner Pantoni ja Louis Poulseni loomingut

Eesti vajab kavalust / Imbi Paju, Stefan Brunow

Index Scriptorium Estoniae

Paju, Imbi, 1959-

2008-01-01

Ajakirjanikud leiavad, et Eesti propaganda peaks seoses Venemaaga olema rafineeritum ning toetama eestivenelaste identiteeti nende venekeelsete kaudu, kes kannavad endas euroopalikke väärtusi ja on Eestile lojaalsed

The validity of knock-for-knock clauses in comparative perspective / Sylvie Cėcile Cavaleri

Index Scriptorium Estoniae

Cavaleri, Sylvie Cėcile

2018-01-01

Seoses Põhjamere nafta- ja gaasitootmisega sõlmitavatest lepingutest, kus kasutatakse nn "knock-for-knock" klausleid. Nende kohaselt katab iga lepingu osaline ise oma kahjud, sõltumata kahjude põhjustajast

Millest räägivad paigad? : Paikade identiteet ja sotsiaalsed konstruktsioonid Eesti saartel / Karin Lindroos

Index Scriptorium Estoniae

Lindroos, Karin, 1973-

2009-01-01

Eesti suursaarte sotsiaalsete suhete struktuurist ja selle abil kujunevast paiga identiteedist, nende kindlaks tegemiseks ja kaardistamiseks sobilikust metoodikast ning paiga identiteedi kontseptsioonidest Hollandi geograafide Huigeni ja Meijringi kontseptsioonidele toetudes.

Festivalivaip läks Hiinasse / Anu Saare

Index Scriptorium Estoniae

Saare, Anu, 1964-

2000-01-01

Neljateistkümnenda Pärnu rahvusvahelise dokumentaal- ja antropoloogiafilmide festivalil peaauhinna saanud hiinlase Pu Lin Wen'i filmist "Otsides Shangri La'd". Ka teistest auhinnatud filmidest ning nende nimekiri

Riik, ohuallikad ja inimeste hirmud / Ivar Aimre

Index Scriptorium Estoniae

Aimre, Ivar, 1941-2009

2005-01-01

Autori hinnangul tähendab turvalisuse tootmine hirmude asjatu suurendamise ärahoidmist, ohtudest ja õnnetustest õigeaegset ning efektiivset teavitamist, nende puhul tõhusat tegutsemist ning sootsiumile sellekohase info edastamist

Kliimamuutuste mõju laboratoorium / Andres Tarand

Index Scriptorium Estoniae

Tarand, Andres, 1940-

2001-01-01

Segadused Ida-Aafrika riikides, nende põhjused. Tabel: Ida-Aafrika riikide mõned arengunäitajad: Etioopia, Sudaan, Somaali, Burundi, Rwanda, Uganda, Tanzania, Keenia. Autor: Rahvaerakond Mõõdukad. Parlamendisaadik

Maskeering : uus reaalsus = Camouflage : a New Reality / Jean-Philippe Dore, Urs Keller

Index Scriptorium Estoniae

Dore, Jean-Philippe

2001-01-01

Šveitsi arhitektide Jacques Herzogi ja Pierre de Meuroni ning nende koolkonna - Peter Zumthor, Annette Gigon, Mike Guyer, Valerio Olgiati - "sõnatust" arhitektuurist ja selle sotsiaalsest tähendusest.

Grado de adherencia terapéutica a los fármacos del metabolismo óseo-mineral: ¿toman nuestros pacientes la medicación prescrita?

Directory of Open Access Journals (Sweden)

María Nieves Cazorla Santana

Full Text Available Los fármacos del metabolismo óseo-mineral tienen gran importancia el tratamiento de los pacientes de hemodiálisis, pero desconocemos las preferencias, y el grado de conocimiento de estos fármacos. Los objetivos del estudio fueron conocer el grado de adherencia terapéutica a los fármacos del metabolismo oseo-mineral, e identificar los factores más relevantes que influyen en la adherencia a este tipo de tratamiento. Pacientes y métodos: Se realizó un estudio transversal en un Centro de hemodiálisis, incluyendo 106 pacientes. Utilizamos el cuestionario simplificado de adherencia a la medicación (SMAQ¹ y un cuestionario específico sobre cumplimiento y preferencias, para conocer el grado de adherencia. Resultados: El 37,7% de los pacientes fue incumplidor según el cuestionario SMAQ. De ellos, el 34% no tomaba la medicación a la misma hora (P<0.000, el 5,7% incumplía el tratamiento los fines de semana (P<0.010, el 13,2% dejan de tomar la medicación cuando se encuentran mal (P<0.010; y en la última semana, el 18% reconocía que olvidó el tratamiento 1día (P= 0.001 y entre 2-3días (12,5%. El 52% no tiene preferencias por ningún quelante del fósforo y el 60.4% conocía la utilidad de los mismos. La principal razón de desagrado fue el aumento del consumo de agua (16%, seguido del tamaño del comprimido (15% y el carbonato de lantano es el fármaco que menos les gusta. Finalmente, el 91% reconoce recibir información dietética. Conclusiones: Como conclusión de nuestro estudio, el 37,7% de los pacientes en programa de hemodiálisis de nuestro centro, fue no adherente al tratamiento médico prescrito, según las respuestas obtenidas en el cuestionario SMAQ, y que el grado de conocimiento, información y/o compresión sobre el tratamiento médico-dietético prescrito a los pacientes son factores muy importantes para mejorar el grado de cumplimiento, por lo que la implicación activa el personal de enfermería constituye una

Germanija, Jevropa i Rossija / Julia Tõmošenko

Index Scriptorium Estoniae

Tõmošenko, Julia, 1960-

2007-01-01

Ukraina endine peaminister, praegune opositsioonipoliitik kirjutab Euroopa ja Venemaa suhetest, energiasõltuvusest ja -varustusest ning rõhutab, et Euroopa liidrid peavad arutama, milles langevad kokku ja milles nende huvid erinevad

Bez vragov i nõntshe ne oboitiss / Aleksandr Tshaplõgin

Index Scriptorium Estoniae

Tšaplõgin, Aleksandr, 1964-

2008-01-01

Artikli autor pöördus parlamendis esindatud parteide juhtide poole, saamaks teada, millised on nende ootused vene rahvusest valijate suhtes peagi toimuvate Euroopa Parlamendi ja kohalike omavalitsuste valimiste eel

Trikotazh / Irina Kuzina

Index Scriptorium Estoniae

Kuzina, Irina

2006-01-01

ERKI moeshow Tallinnas Vene Kultuurikeskuses. Eesti osalejatest nimetatud Anna Roometit ja Marta Kisandit ning Vassilissa Danaviri ja nende kollektsioone. Pealkirja all "Jantarnaja komnata Oksanõ Tandit" Oksana Tanditi uuest kollektsioonist

Onko kaularenkailla kotipaikkaa? : Kuusi hopeista kaularengasta suomen kansallismuseon kokoelmista / Leena Toamterä

Index Scriptorium Estoniae

Toamterä, Leena

2008-01-01

Kuuest kaelavõrust pärinevad neli pärinevad Lapimaalt (leitud 2003. aastal), ja kaks Karjalast Laadoga põhjarannikult. Kaelavõrude kirjeldused. Kaelavõrude omavahelistest erinevustest, nende hõbedasisaldusest

Õiguse elule kaitse kolmandate isikute rünnakute vastu Euroopa inimõiguste ja põhivabaduste kaitse konventsiooni alusel : [bakalaureusetöö] / Helen Poolake ; Tartu Ülikooli Õigusinstituut ; juhendaja: Mart Susi

Index Scriptorium Estoniae

Poolake, Helen

2007-01-01

Õigus elule, selle regulatsioon Euroopas ja kohaldamine Eestis, kaitse põhimõtted ja sellest tulenevad riigi kohustused, materiaalne kaitse, probleemid õiguse elule tagamisel ja põhimõtted nende lahendamisel

Mõisad kaovad kahest otsast / Ants Hein

Index Scriptorium Estoniae

Hein, Ants, 1952-

2006-01-01

Mõisate tähendusest Eesti kultuuriloos, nende ennistamisel tehtud vigadest. Lähemalt Restori renoveeritud Maardu ja Kalvi mõisast. Õisu mõisahoone treppi kaunistanud (autor Giovanni Antonio Cybei) marmorkujudest

Parlament ja ringhääling / Gunnar Paal

Index Scriptorium Estoniae

Paal, Gunnar, 1946-

2003-01-01

Autori hinnangul oleks otstarbekas fikseerida avalik-õigusliku ringhäälingu tegevuskavas kontseptuaalselt, milline on nende organisatsioonide roll riigi institutsioonide tegevuse vahendamisel avalikkusele. Tabel: Osavõtt (%) Riigikogu ja kohalikest valimistest

HP fotovõistluse finalistid veebis / Henrik Roonemaa

Index Scriptorium Estoniae

Roonemaa, Henrik

2002-01-01

Hewlett-Packardi koduleheküljel on üleval rahvusvahelise digitaalfotograafia konkursi HP Invision Digital Photography Awards 2002 finalistide tööd, nende hulgas Katrin Arraku foto "Minu kala Vallo"

Luuka eripärast varakristliku inimesekäsitluse kujunemisloos / Randar Tasmuth

Index Scriptorium Estoniae

Tasmuth, Randar, 1955-

2009-01-01

Mõistete "keha", "ihu" ja "hing" teoloogilisest tähendusest, nende käsitlustest heebrea, klassikalises ja hellenistlikus kreeka kirjanduses ning varakristlikes tekstides. Käsitluse erinevustest ja mõjuallikatest Luuka evangeeliumis

Polügraafiatesti abil saadud andmete usaldusväärsuse võrdlemine muude tõendite usaldusväärsusega : [bakalaureusetöö] / Ilona Marken-Kruusmägi ; Tartu Ülikool, õigusteaduskond Tallinnas ; juhendaja: Talis Bachmann

Index Scriptorium Estoniae

Marken-Kruusmägi, Ilona, 1988-

2013-01-01

Polügraafitesti kirjeldus ning selle abil saadava informatsiooni usaldusväärsuse hindamisest, teiste tõendite tutvustusest ning nende usaldusväärsuse hindamisest, võrdlevast hinnangust, tuleviku suundumistest

Kuidas Alfred Adler läks tülli Sigmund Freudiga / Aivar Kull

Index Scriptorium Estoniae

Kull, Aivar, 1955-

1996-01-01

Arvustus: Adler, Alfred. Inimesetundmine : Inimeste iseloomude peategurid ja nende areng / Tlk. Debora Hint. 2.tr. Tln. : Kupar, 1995. Vaata ka: Kull, Aivar. Kulli pilk. - Tartu : Ilmamaa, 2005, lk. 97-100

Politicians spin attacks against methadone, syringe replacement / Milda Seputyte

Index Scriptorium Estoniae

Seputyte, Milda

2005-01-01

Leedu parlamendiliikmed osalevad kampaanias, millega võideldakse narkomaanidele tasuta süstalde jagamise ja sõltuvuse vastase aine metadooni vastu, kuna nende arvates need meetmed pigem süvendavad narkomaaniat

Diplomaatilise immuniteedi erandid tsiviilõiguslikes küsimustes : [bakalaureusetöö] / Argo Reiljan ; Tartu Ülikooli Õigusinstituut ; juhendaja: René Värk

Index Scriptorium Estoniae

Reiljan, Argo

2006-01-01

Diplomaatilised privileegid ja immuniteedid ning nende erinevad teooriad, diplomaatilise esinduse liikme kriminaal-, tsiviil- ja halduskohtulik immuniteet vastuvõtjariigi kohtulikust jurisdiktsioonist, tsiviilkohtuliku immuniteedi erandid, erandite korral tehtud kohtuotsuste täideviimine

Kaadamise regulatsioon mereõiguses ja rahvusvahelise õiguse efektiivsuse probleem : [magistritöö] / Agnes Pilv ; Tartu Ülikool, õigusteaduskond ; juhendaja: Lauri Mälksoo

Index Scriptorium Estoniae

Pilv, Agnes

2010-01-01

Kaadamise (e. tahtlik ainete või asjade merreheitmine nende kõrvaldamise eesmärgil) õiguslikust reguleerimisest, rahvusvahelise õiguse efektiivsusest merekeskkonna kaitse reguleerimisel kaadamisest pärineva reostuse vältimisel

Die Rolle der Grenze in der regionalen Identitätsbildung aus der Sicht der Regionalelite im Südosten und Nordosten Estlands (Setomaa und Ida-Virumaa) / Sigrid Rand

Index Scriptorium Estoniae

Rand, Sigrid

2004-01-01

Setumaa ja Ida-Virumaa võrdlus, nende Eesti idapoolsete äärealade kohaliku identiteedi kujunemisest ja piiri mõjust sellele. Artikkel tugineb 2002. aastatel tehtud intervjuudele kohaliku võimueliidi esindajatega

Laste seksuaalne väärkohtlemine - selle ennetamise võimalikkusest : [bakalaureusetöö] / Janika Soo ; Õigusinstituut ; juhendaja: Airi Ross

Index Scriptorium Estoniae

Soo, Janika

2002-01-01

Laste seksuaalse väärkohtlemise olemus, liigid, soodustavad asjaolud, viitavad märgid ja nende äratundmine, laste õigusi kaitsvad organisatsioonid, kehtiv õiguslik regulatsioon, juhtumi analüüs

"Issi, sa piat ise usguma et sa osgad!" / John Whitmore ; intervjueerinud Endrik Randoja

Index Scriptorium Estoniae

Whitmore, John

2010-01-01

Juhtiva coaching'u-eksperdi ja Tartus toimuva personalijuhtimise konverentsi "Uuenev organisatsioon" peaesineja sir John Whitmore'i hinnangul on coaching viis mõista ja toetada inimesi ning tõsta nende eneseusku

Tippjuhi töö on nagu maratoni jooksmine / Jim Scholes

Index Scriptorium Estoniae

Scholes, Jim

2002-01-01

Tippjuhid ja nende käitumise mõju alluvatele ning organisatsioonikultuurile. Lisa: Juhid ei tea, mis firmas toimub. Artikkel refereeritud Jim Scholesi ettekandest 5.-6. septembril 2002 toimunud Tartu Juhtimiskonverentsil

Laulja Elina Bieza esines "Päikesejänku" festivalil / Helju Keskpalu

Index Scriptorium Estoniae

Keskpalu, Helju

2002-01-01

Läti televisiooni kutsel osales nende korraldatud laste rahvusvahelisel popmuusika festivalil "Saules zakis 2002" (Päikesejänku 2002) Eesti esindajana stuudio Joy laulja Elina Bieza koos tantsutrupi Richard tantsijatega

Bogi i monstrõ, ili biografija Supermena / Olga Marsheva

Index Scriptorium Estoniae

Marsheva, Olga

2007-01-01

Ameerika tuntuimad koomiksikunstnikud Larry Hama, Stan Lee, Jerry Seagel, Bob Kain, Frank Miller ja nende loodud tegelaskujud. Ka briti kirjanik Alan Moore, kellele ei meeldi oma kangelastest tehtud ekraniseeringuid vaadata

Genotsiid ja apartheid okupeeritud Eestis. [1.-3. osa] / Enn Sarv

Index Scriptorium Estoniae

Sarv, Enn, 1921-2008

1997-01-01

Peatükk raamatust "Õigluse vastu ei saa ükski". NSVLi poolt eestlaste kallal toimepandud inimsusevastased kuriteod. Inimkaotused, raamatute hävitamine. Sõjakuriteod ja nende eest karistamise võimalused

"Live 8" tähti ei auhinnata

Index Scriptorium Estoniae

2006-01-01

Briti muusikapreemia Brit Awards žürii ei võtnud parima kontsertesituse auhinnapretendentide nimekirja ansamblit Pink Floyd ja lauljat Robbie Williamsi, kuna nende 20-minutiline esitus polevat auhinna saamiseks veenev

Aegade ühildumatus : mälukoorem tänapäeva Prantsusmaal / Jaques Revel ; tlk. Indrek Koff

Index Scriptorium Estoniae

Revel, Jaques

2007-01-01

Erinevatest ajalookäsitlustest, ajaloojutustuse mudelitest ja nende arengusuundadest ning muutumise vajadusest Prantsusmaal. Artikli aluseks on ettekanne konverentsilt "Ajalugu ja poliitika. Mineviku kasutamisest ja ärakasutamisest" (Tallinn, 14. okt. 2006)

Hooaeg, mis kadus pildilt / Krista Kaldvee

Index Scriptorium Estoniae

Kaldvee, Krista

2008-01-01

Ugala teatri hooajast 2007/2008. Peatutakse etendustel "Nora/Maja", "Runar ja Kyllikki", "Põhjas", "Kolm meest paadis", "Kunst", "Ühes Eesti teises linnas", "Kolm õde", "Linnapea" ja nende kajastamisel eesti meedias

Candidates dreaming of euro / Daniel Aronssohn

Index Scriptorium Estoniae

Aronssohn, Daniel

2003-01-01

Kesk-Euroopa postsotsialistlikud riigid soovivad võimalikult kiiresti Euroopa Liiduga ühinemise järel üle minna eurole. Euroopa Keskpank hoiatab, et see võib pidurdada nende riikide majanduskasvu

Ves god jeshtsho vperedi / Viktoria Jürmann

Index Scriptorium Estoniae

Jürmann, Viktoria

2007-01-01

Tallinna linnavalitsuse kavandatud töid 2007. aastaks. Nende hulgas on Harju tänava rekonstrueerimise lõpetamine, linnahalli rekonstrueerimise ideekonkurss, Vabaduse väljaku rekonstrueerimisprojekt, detailplaneeringute kooskõlastamine elektrooniliselt

The practical and theoretical problems with „balancing“: Delfi, Coty and the Redundancy of the human rights framework / Bart van der Sloot

Index Scriptorium Estoniae

Sloot van der, Bart

2016-01-01

Privaatsuse ja andmekaitse tagamisest, tasakaalust nende kahe põhiõiguse kaitsmise vahel, kahe huvi/õiguse omavahelisest kaalumisest. Kahest Euroopa Inimõiguste Kohtu kohtulahendist: Delfi vs. Estonia ja Coty vs. Stadtsparkasse

Praktiline filosoofia = Practical philosophy / Suzie Attiwill

Index Scriptorium Estoniae

Attiwill, Suzie

2015-01-01

Artiklis käsitletakse sisearhitektuuri ja ruumikujunduse valdkonna teooria ja praktika arengut, tuues välja nendel arengutel põhinevad järeldused ja nende seose sisearhitekti ja disaineri elukutsetega

Kõnnivad köiel ja hoiavad kätt / Iir Hermeliin, Jaanus Vahtra ; intervju Sven Karja

Index Scriptorium Estoniae

Iir Hermeliin, pseud., 1973-

2000-01-01

Teatrikunstnikud Iir Hermeliin ja Jaanus Vahtra ning nende looming. Kunstnikud lavastajatest ja lavastajad Mati Unt ja Ain Mäeots koostööst kunstnikega lavastustes "Jacques ja tema isand"; "Laulatus"

Tõnu Talve teeb üle Eesti talvetuure / Ants Juske

Index Scriptorium Estoniae

Juske, Ants, 1956-2016

2009-01-01

Tõnu Talve maalinäitus "Kaev, tuhk ja torn" Keila Kultuurikeskuses. Külalisesinejad: Kohtla-Järve Kunstide Kooli õpilased ja nende juhendaja Aarne Hanni ning Harjumaa koolide õpetajad ja õpilased

Sloveenia volinik : Taga-Kaukaasia riigid on Euroopas / Janez Potocnik ; interv. Ahto Lobjakas

Index Scriptorium Estoniae

Potočnik, Janez, 1958-

2004-01-01

Sloveenia eurovolinik oma visiidist Taga-Kaukaasia vabariikidesse. Gruusia, Armeenia ja Aserbaidžaani soovist tõhustada koostööd Euroopa Liiduga ning Euroopa Liidu soovist arendada nendes riikides demokraatiat

Review of empirical studies on disclosure and MBAR in European countries / Laivi Laidroo

Index Scriptorium Estoniae

Laidroo, Laivi

2006-01-01

Artikkel koondab teavet erinevate teostatud empiiriliste uuringute kohta, kirjeldab nende peamisi iseloomulikke jooni ning toob välja potentsiaalsed uurimissuunad, mis oleksid aktuaalsed Kesk- ja Ida-Euroopa riikide kontekstis. Tabelid

Naelakast ja tempel / Märt Kubo

Index Scriptorium Estoniae

Kubo, Märt, 1944-

2009-01-01

Solarise keskusest ja Estonia teatist, nende saamisloost võrdlevalt. Autori sõnul on Armas Lindgreni ja Wivi Lönni loodud Estonia justnagu veel ilusamaks saanud. Arvamus Estonia maja laienemise kohta

Naturalismi retseptsioonist baltisaksa kirjasõnas 1880. ja 1890. aastatel / Juta Keevallik

Index Scriptorium Estoniae

Keevallik, Juta, 1943-

1998-01-01

Suurenev huvi kunstiteoreetiliste probleemide vastu. Naturalismi käsitlused puudutavad kirjandust, kujutavat kunsti ja muusikat. Tuntumad kirjutajad olid Gustav Teichmüller, Woldemar Masing, Oscar Kleinenberg, August Rauber, nende seisukohtadest

Namedni Ernst prigrozil Parjenovu dezha vju

Index Scriptorium Estoniae

2004-01-01

Vene telekanal NTV vallandas autorisaate "Namedni" juhi Leonid Parfjonovi. Telekanal ORT juht Konstantin Ernst peab saatejuhiga läbirääkimisi sarnase saate, nimega "Deja vu", tegemiseks nende kanalil

Studia Generalia "Mõisteloomest ja tähistamisest"

Index Scriptorium Estoniae

2007-01-01

Studia Generalia loengus vaadeldakse erinevaid tähistamisteooriaid ning esitatakse neil põhinev mudel, mille abiga saab kultuurinähtuste analüüsis seostada nende kogemuslikke ja keelelisi aspekte

Muusikaüliõpilaste refleksiooni toetamine pilliõppes / Tuulike Kivestu, Äli Leijen, Kadri Steinbach

Index Scriptorium Estoniae

Kivestu, Tuulike

2014-01-01

Uurimusest, mille eesmärgiks oli selgitada välja, millised on üliõpilaste kogemused refleksioonimudeli rakendamisel ja nende hinnangud refleksiooniülesannete kasulikkusele pillimängu oskuste arendamisel

Use of INAA to study the interaction between Se and Te in cells of Saccharomyces cerevisiae

International Nuclear Information System (INIS)

Czauderna, M.; Turska, M.; Sierokowska, S.; Smolinski, S.

1996-01-01

The differences in the effects of inorganic Se (IV and VI) compounds and seleno-cystine [(CySe) 2 ] on the Te (as Na 2 TeO 3 ) uptake by the yeast, Saccharomyces cerevisiae, has been studied. Se, Te, Ag, Zn, Fe and Co contents of the cells were measured by instrumental neutron activation analysis. For the determination of the Ag content, the monostandard method was applied as the analytical method. The contents of other elements were determined by comparison with standards having similar amounts of the determined element as the sample. Results obtained show that an antagonist interaction occurs between SeO 2 and Te. There was a significant increase in the concentration of Se and Te when the yeast was incubated in the medium containing (CySe) 2 and Te. (CySe) 2 markedly increased the Ag content of cells, especially within the first 8 h of incubation. The low level of SeO 2 in the medium are the exterior factor which produce an observable increase of the Ag concentration in the cells. The higher level of SeO 2 in the medium causes a long-term marked increase in the Ag content of the cells. The uptake yield of Ag also increased in the presence of (NH 4 ) 2 SeO 4 in the medium. The Te supply produced a significant enhancement in the Ag content of the cells during the initial 8 h of incubation. The presence of Se and/or Te in the medium causes change in the intracellular Zn, Fe and Co levels. (author)

Metagenomic insights into effects of spent engine oil perturbation on the microbial community composition and function in a tropical agricultural soil.

Science.gov (United States)

Salam, Lateef B; Obayori, Sunday O; Nwaokorie, Francisca O; Suleiman, Aisha; Mustapha, Raheemat

2017-03-01

Analyzing the microbial community structure and functions become imperative for ecological processes. To understand the impact of spent engine oil (SEO) contamination on microbial community structure of an agricultural soil, soil microcosms designated 1S (agricultural soil) and AB1 (agricultural soil polluted with SEO) were set up. Metagenomic DNA extracted from the soil microcosms and sequenced using Miseq Illumina sequencing were analyzed for their taxonomic and functional properties. Taxonomic profiling of the two microcosms by MG-RAST revealed the dominance of Actinobacteria (23.36%) and Proteobacteria (52.46%) phyla in 1S and AB1 with preponderance of Streptomyces (12.83%) and Gemmatimonas (10.20%) in 1S and Geodermatophilus (26.24%), Burkholderia (15.40%), and Pseudomonas (12.72%) in AB1, respectively. Our results showed that soil microbial diversity significantly decreased in AB1. Further assignment of the metagenomic reads to MG-RAST, Cluster of Orthologous Groups (COG) of proteins, Kyoto Encyclopedia of Genes and Genomes (KEGG), GhostKOALA, and NCBI's CDD hits revealed diverse metabolic potentials of the autochthonous microbial community. It also revealed the adaptation of the community to various environmental stressors such as hydrocarbon hydrophobicity, heavy metal toxicity, oxidative stress, nutrient starvation, and C/N/P imbalance. To the best of our knowledge, this is the first study that investigates the effect of SEO perturbation on soil microbial communities through Illumina sequencing. The results indicated that SEO contamination significantly affects soil microbial community structure and functions leading to massive loss of nonhydrocarbon degrading indigenous microbiota and enrichment of hydrocarbonoclastic organisms such as members of Proteobacteria and Actinobacteria.

Reflexiones en torno a la relación de los arqueólogos y bioarqueólogos con las comunidades indígenas: el caso Hornillos (Qda. de Humahuaca, Jujuy

Directory of Open Access Journals (Sweden)

Mamani, H.

2003-01-01

Full Text Available Este trabajo tiene por finalidad reflexionar en torno al trabajo realizado con las comunidades indígenas a partir de la exhumación de un conjunto de restos humanos prehispánicos (PDR II-1350-1460 d.C.. El conjunto que se compone de un entierro múltiple, uno simple y dos en urna; fueron rescatados del yacimiento arqueológico de Hornillos en el marco del Proyecto "Puesta en Valor del Patrimonio Cultural de Hornillos". Considerando que los entierros humanos en su conjunto son parte de la historia y del patrimonio de los pueblos, el análisis bioarqueológico no debería circunscribirse al mero análisis de los restos óseos sino que tendría que contemplar e involucrar de alguna manera la participación de diferentes actores sociales, en este caso, las comunidades indígenas. Los restos óseos humanos han despertado siempre gran interés por parte de los diferentes actores sociales (arqueólogos, coleccionistas, comunidad en general. En este caso se pudo generar un espacio de reflexión sobre el destino de los restos óseos humanos en el que participaron aquellas personas interesadas en la temática. A partir de la consulta de las partes intervinientes se decidió que los restos óseos recuperados fueran primeramente analizados por los arqueólogos y bioarqueólogos, para luego ser enterrados nuevamente en el lugar de origen de acuerdo a las costumbres y creencias de las comunidades indígenas.

Active versus sedentary lifestyle from childhood to adult and ...

Science.gov (United States)

A pattern of sedentary lifestyle beginning in childhood is associated with obesity and related disorders such as type 2 diabetes. Obesity is associated with increased susceptibility to air pollutants and initiating regular exercise early in life should impact positively on respiratory symptoms of air pollutant exposure.An animal model of childhood-to-adult sedentary {SEO) vs. active {ACT) lifestyle was achieved by providing female Long-Evans rats with running wheels beginning at22d of age and then exposing to ozone {03) as adults. ACT rats ran 7.2 km/d over 74 days, had lower body fat, and improved glucose tolerance (GT) compared to SEO rats. Adult rats were exposed to 0, 0.25, 0.5, or 1.0 ppm 03 for 5 hr/d for 2 d. 03-induced impairment in GT was significantly improved in ACT animals.Bronchoalveolar lavage {BALF) protein markers of lung damage and neutrophilic inflammation were similarly affected in SEO and ACT animals. BALF eosinophils of SEO rats were markedly higher after exposure to 0.5 and 1.0 ppm 03 compared to ACT rats. Overall,this animal model suggests that regular exercise initiated early in life may afford protection in adulthood to the metabolic and pulmonary effects of 03. The attenuated 03-induced elevation in BALF eosinophils of ACT rats may suggest a protective mechanism of childhood exercise on asthma-related symptoms of air pollution. This is an abstract of a proposed presentation and does not reflect US EPA policy This abstract will be presen

Häda nende meie Vaarikutega! / Andres Mesikäpp

Index Scriptorium Estoniae

Mesikäpp, Andres

2000-01-01

20. oktoobril algas Kanal 2s uus teleseriaal "Me saame hakkama" : stsenarist Mihkel Ulman : režissöör Ain Prosa : helilooja Ardo-Ran Varres : mängivad Andrus, Maarika ja Marta Vaarik, Ülle Kaljuste, Maria Avdjushko, Hilja Varem jt. : Wireframe Productions

Sõjakurjategijate ja nende ohvrite kohtlemisest Eesti Vabariigis / Peep Varju

Index Scriptorium Estoniae

Varju, Peep

2009-01-01

Autor kritiseerib 1949. aasta märtsiküüditamises kannatanute võimalusi õigusabile ja küüditajate üle kohtumõistmise venimist. Viited okupatsioonirežiimide poolt represseeritud isiku seadusele

Holland piiraks sisserännet EL-i / Ahto Lobjakas

Index Scriptorium Estoniae

Lobjakas, Ahto, 1970-

2004-01-01

Hollandi justiitsministri Piet Hein Donneri sõnul otsib EL-i praegune eesistujamaa Holland lahendusi, mis aitaksid põgenikke ja potentsiaalseid asüülitaotlejaid paremini kaitsta nende asukohariikide läheduses

CSR - fashion word or strategic approach? / Katrin Vernik, Fred Nahkur ; interv. Evelyn Ojamets

Index Scriptorium Estoniae

Vernik, Katrin, 1975-

2006-01-01

A. Le Coq Tartu Õlletehase turundusjuht ja Procter & Gamble'i Balti regiooni avalike ja välissuhete juht selgitavad, kuidas on ettevõtte sotsiaalse vastutuse kontseptsioon leidnud rakendust nende organisatsioonides

Suhtekolmnurk : originaalid - koopiad - valandid 19. sajandi skulptuurikogus / Tiina-Mall Kreem

Index Scriptorium Estoniae

Kreem, Tiina-Mall

2005-01-01

Eesti mõisates olnud kunstikogudest (Raadi, Piira, Muuga jt.), Kadrioru Kunstimuuseumi skulptuurikogust. 19. saj. Eestis olnud skulptuurikollektsioonidest, täpsemalt originaalide ja valandite vahekorrast. Mõistetest originaal ja koopia, nende kasutuselevõtust

Литература как способ самопознания в "другом" / Ирина Белобровцева

Index Scriptorium Estoniae

Белобровцева, Ирина, 1946-

2001-01-01

Eesti ja vene kogukondade vahelise dialoogi olulisest aspektist : dialoogi toimumise teoreetilisest võimalusest ja nende praktilisest realiseerumisest kirjanduses. Vene teemast Enn Vetemaa, Rein Saluri, Jaan Unduski ja Ülo Tuuliku loomingus

EOD-projekti kogemusi / Õnne Mets, Krista Kiisa

Index Scriptorium Estoniae

Mets, Õnne, 1979-

2014-01-01

2006. aastal algatatud EOD-teenust pakub ligi 40 Euroopa raamatukogu, nende seas on saanud seitse aastat raamatuid tellida ka Eesti Rahvusraamatukogust. Aastatel 2009-2014 oli EOD-projekti kommunikatsioon RR-i koordineerida

Raamatukogu väärtus ja mõju / Aira Lepik

Index Scriptorium Estoniae

Lepik, Aira, 1958-

2001-01-01

Kirjutis annab ülevaate võimalikest organisatsiooni väärtuse (value) ja mõju (impact) analüüsimis- ja hindamismudelitest ning nende kasutamisvajadusest raamatukogu tegevuse tulemuslikkuse väljaselgitamisel

Implementation of Organizational Changes in Chinese Companies / Wei Sun, Ruth Alas

Index Scriptorium Estoniae

Sun, Wei

2007-01-01

Põhja-Hiina 160 ettevõttes läbi viidud uuringu alusel analüüsitakse organisatsioonilisi muutusi, nende mõju ja vastumõju, taustaks institutsionaliseerumise olulised etapid Hiina ajaloos. Lisa: Tabelid

Kas ikka veel tolmunud ruum? : muutustest muuseumikultuuris / Mare Kõiva

Index Scriptorium Estoniae

Kõiva, Mare, 1954-

2006-01-01

Muuseumide arenduga seotud muutustest 20. sajandi lõpul ja 21. sajandi algul. Artiklis otsitakse vastust küsimusele, kus paiknevad Eesti muuseumid üldiste muutuste taustal ja kuidas nende asend muutub

Problema interpretatsii / Aleksandr Shegedin

Index Scriptorium Estoniae

Shegedin, Aleksandr

2004-01-01

Vene Riigiduuma ratifitseeris Venemaa ning Euroopa Liidu vahelise partnerlus- ja koostöölepingu, samuti Venemaa ühinemislepingu Kyoto protokolliga. Autor hindab nende lepingute võimalikku mõju Eesti-Vene suhetele

Teachers̀ views on affective education and teaching the arts; Estonian and Finnish teachers compared / Arja Puurula

Index Scriptorium Estoniae

Puurula, Arja

2001-01-01

Eesti ja Soome õpetajate võrdlevast uurimusest, mis selgitab nende seisukohti afektiivse kasvatuse suhtes, õpetajate pädevusi, õpilaste karakteristikuid, õpetajate rahulolu oma tööst, kunstiõpetuse kohast koolihariduses

Slovarnõi zapass; Utrennjaja muzõka; Mõsl; Absoljutnõi jumor : tshitaja Jannisa Ritsosa; Ne prihhodi; Ne pomnju; Svet vdohnovenja; 'Kogda ot imeni tehh...'; 'Kto szhalitsja kto pozhalejet tehh...'; 'Na povorote skrezheshtshet tramvai...'; Prosto

Index Scriptorium Estoniae

Traat, Mats, 1936-

1996-01-01

Orig.: Sõnavara; Hommikumuusika; Mõte; Absoluutne huumor : Jannis Ritsost lugedes; Ära tule; Ei mäleta; "Kui nende nimel..."; "Kes heidab armu neile..."; "Pöörakul krigiseb tramm..."; Lihtsa naise elu

Metoodika väljatöötamine konfliktide uurimiseks äriühingute valitsemisel / Kristo Viksi

Index Scriptorium Estoniae

Viksi, Kristo

2005-01-01

2004. a. Eesti erialases ajakirjanduses ilmunud artiklite analüüsist, millest selgus, millised konfliktid esinevad Eesti äriühingute valitsemises, millised on nende tunnused ja kuidas neid on lahendatud

Christian Kelchi "Liivimaa ajaloo" allikad / Janet Laidla

Index Scriptorium Estoniae

Laidla, Janet, 1982-

2007-01-01

Christian Kelchist. 17. sajandil ei olnud allikatele viitamine üheselt kohustuslikuks kujunenud. Kelchi kroonikas mainitud ja kasutatud teostest ja nende autoritest. Oma allikaid on Kelch pigem refereerinud kui ümber kirjutanud.

Tasakaalus tulemuskaardi sage viga on vääralt määratud näitajad / Mait Raava

Index Scriptorium Estoniae

Raava, Mait

2003-01-01

Tasakaalus tulemuskaart väljendab strateegiliste tulemusnäitajate põhjuslik-tagajärjelisi seoseid, kuid viga tuleb sageli nende tegurite määratlemisel, kirjutab autor. Skeem. Kommenteerib Sven Heil

Vertigo

Index Scriptorium Estoniae

2007-01-01

Tallinnas Rävala pst. 4 asuva restorani Vertigo sisekujundus. Sisearhitektid Janno Roos ja Andres Labi (Ruumilabor OÜ). Sisearhitektidest, nende koos teostatud projektid. Kaks plaani, 8 värv. sisevaadet, fotod sisearhitektidest

GMO konverents Brüsselis / Nastja Pertsjonok

Index Scriptorium Estoniae

Pertsjonok, Nastja

2007-01-01

Brüsselis toimunud GMO-vabade piirkondade konverentsist, kus räägiti GMO-vabade piirkondade liikumisest, GMO-de lubamisest ja keelamisest ning hoiakutest nende suhtes Euroopa Liidus ja mujal maailmas

Танец поможет найти культурные различия

Index Scriptorium Estoniae

2009-01-01

Novembris toimuvad Kanuti Gildi saalis tantsuetendused "Tavaj", mille autorid Alissa Šnaider, Päär Pärenson ja Renzo van Steenbergen uurivad erinevusi eestikeelsete ja venekeelsete elanike mentaliteedis ja nende suhtlemist

Uus raamat arhitektuurist

Index Scriptorium Estoniae

1999-01-01

6. sept. esitleti "Võitlevas Sõnas" arhitektuuribüroo Künnapu & Padrik enda publitseeritud raamatut "Valitud töid/Selected Works", milles on pildiline kui tekstiline info nende loomingust alates 1984. a.

Katsetame Kaksiknumbrit

Index Scriptorium Estoniae

2004-01-01

Politseiameti tehnikaosakonna töötajad katsetavad mobiiltelefoniteenust Kaksiknumber, mis seob politseiniku telefoni ühe SIM-kaardiga kaks telefoninumbrit: töö- ja eranumbri ning võimaldab nende kõnesid eristada

Nastuplenije na islam / Vladimir Rodin

Index Scriptorium Estoniae

Rodin, Vladimir

2003-01-01

Islamimaailm näeb USA-s oma alustalade lõhkujat, kes hukatuslikult mõjub nende valitsejatele, Ameerikas elavatele ja õppivatele muhameedlastele ning seetõttu asub aktiivsele kaitsele. USA salaplaan 1994. aastast

Pedagoogikaraamatukogude seminar Jyväskyläs / Kersti Kikkas

Index Scriptorium Estoniae

Kikkas, Kersti

1997-01-01

16.-19. oktoobrini 1997 toimus Jyväskylä Ülikooli Raamatukogus Põhja- ja Baltimaade pedagoogikaraamatukogude ühisseminar, mis oli mõeldud nimetatud raamatukogude direktoritele ja nende raamatukogude omanike esindajatele, rektoritele

Eesti ravimimüüja Magnum napsas Soomes kopsaka lepingu / Andrus Karnau

Index Scriptorium Estoniae

Karnau, Andrus

2010-01-01

Eesti ravimimüüja Magnum juhtidel õnnestus ravimitootjaga Claxo Smith Kline jõuda kokkuleppele, et hakatakse nende toodangut vahendama Soomes. Eesti ja Soome ravimituru vahe on kümnekordne. Diagramm

Magnum заключила выгодный контракт / Андрус Карнау

Index Scriptorium Estoniae

Карнау, Андрус

2010-01-01

Eesti ravimimüüja Magnum juhtidel õnnestus ravimitootjaga Claxo Smith Kline jõuda kokkuleppele, et hakatakse nende toodangut vahendama Soomes. Eesti ja Soome ravimituru vahe on kümnekordne. Diagramm

Leedu päritolu kasiinoärimees püsib rikkuselt kolmanda ameeriklasena / Erik Aru

Index Scriptorium Estoniae

Aru, Erik

2006-01-01

Väidetavalt Leedu päritolu kasiinoärimehest Sheldon Adelsonist, tema rivaliteedist Steve Wynniga, nende tegevus Hiina Rahvavabariigi territooriumil Macaos. Lisa: Las Vegas kolib Aasiasse. Tabel : Las Vegas Sands Corporation

Puuetega inimeste õiguste konventsioonist / Monika Haukanõmm

Index Scriptorium Estoniae

Haukanõmm, Monika, 1972-

2007-01-01

25. sept. 2007 Eesti poolt allkirjastatud ÜRO puuetega inimeste õiguste konventsioonist, mis kohustab kaitsma puuetega inimeste õigusi, kaotama igasugune diskrimineerimine ning edendama nende õigusi hariduse, tervise, sotsiaal- ja muudes valdkondades

Kunstniku portree väikese tüdrukuna / Leena Kurvet-Käosaar

Index Scriptorium Estoniae

Kurvet-Käosaar, Leena, 1969-

2007-01-01

Viivi Luige "Seitsmes rahukevad" (Tallinn : Eesti Raamat, 1985) ja Aino Kallase "Katinka Rabe" (Tartus : Eesti Kirjanduse Selts, 1930) kui autobiograafilised romaanid, vaadeldakse peategelasi, nende suhteid lähedastega, naislooja subjektsuse kujutamist

N-(2-Methylphenyl-1,2-benzoselenazol-3(2H-one

Directory of Open Access Journals (Sweden)

Xu Zhu

2013-10-01

Full Text Available In the title Ebselen [systematic name: (2-phenyl-1,2-benzoisoselenazol-3-(2H-one] analogue, C14H11NOSe, the benzisoselenazolyl moiety (r.m.s. deviation = 0.0209 Å is nearly perpendicular to the N-arenyl ring, making a dihedral angle of 78.15 (11°. In the crystal, molecules are linked by C—H...O and Se...O interactions into chains along the c-axis direction. The Se...O distance [2.733 (3 Å] is longer than that in Ebselen (2.571 (3 Å].

Structure of caesium selenate

International Nuclear Information System (INIS)

Zuniga, F.J.; Breczewski, T.; Arnaiz, A.

1991-01-01

Cs 2 SeO 4 , M 4 =408.77, orthorhombic, Pnam, a=8.3777 (8), b=11.276 (2), c=6.434 (2) A, V=607.8 (2) A 3 , Z=4, D x =4.46 Mg m -3 , MoKα, λ=0.71069 A, μ=185.06 cm -1 , F(000)=704, T=293 K, R=0.048, 3348 observed reflections. Average values of the Se-O and Cs-O distances are 1.637 (4) and 3.387 (3) A, respectively [range 3.038 (5)-3.872 (6) A with 9 and 11 coordination of caesium by oxygen]. (orig.)

Naised, memoria ja sakraalruum hiliskeskaegsel Liivimaal / Anu Mänd

Index Scriptorium Estoniae

Mänd, Anu, 1968-

2012-01-01

Gildiõdedest ja nende mälestamisest. Vikaariate rajamisest. Tallinlannade testamentidest ja testaatorite sotsiaalsest taustast. Sakraalruumi kujundavatest annetustest naiste testamentides. Abielupaaride ja naiste annetatud armulauanõudest. Gertrud Wrangeli memoriaalkompleksist. Matusepaikadest ja hauakividest

Adamkus mediates police, government discord / Milda Seputyte

Index Scriptorium Estoniae

Seputyte, Milda

2005-01-01

President Valdas Adamkus sekkus politseinike ja valitsuse vaidlusesse, mille käigus politseinikud väidavad, et valitsusliikmed ignoreerivad nende soovi maksta raha 2002. aastal saamata jäänud palkade eest

Business ethics and financial performance : a practical and empirical approach / Tim Benijts

Index Scriptorium Estoniae

Benijts, Tim

2001-01-01

Mitmed organisatsioonid maailmas hindavad ettevõtteid nende eetilisusest lähtudes, näiteks Ethibel-Stock Belgias. Vaatamata ettevõtjate kartustele, ei lähe eetilistel ettevõtetel äris sugugi kehvemini

Tallinna idee / Andres Alver, Ott Alver, Marten Kaevats ; intervjueerinud Margit Mutso ; kommenteerinud Douglas Gordon

Index Scriptorium Estoniae

Alver, Andres, 1953-

2011-01-01

17. veebruaril esitleti raamatut "Tallinna idee", mis on koostatud Eesti Kunstiakadeemia 4. kursuse arhitektuuritudengite kursuseprojektide põhjal. Tallinna teemal vestlevad tudengid Ott Alver ja Marten Kaevats ning nende juhendaja professor Andres Alver

Aktsiasoovitus: Tarkvaratootja GigaMedia (GIGM) / Joel Kukemelk

Index Scriptorium Estoniae

Kukemelk, Joel

2009-01-01

Tarkvaralahenduste väljatöötamise ja nende litsentseerimisega ning Euroopa suuruselt neljandat online-mänguportaali Everest Poker omavasse ettevõtte GigaMedia (GIGM) aktsiatesse investeerimise ohtudest ning positiivsetest teguritest

Terra Cucersita = Терра Кукерсита / Annely Oone

Index Scriptorium Estoniae

Oone, Annely

2012-01-01

Projektist "Ümber TERRA CUCERSITA (Põlevkivimaa)", mille eesmärk on noorte seas huvi äratamine loodus- ja täppisteaduste ja tehnoloogia ning teadus- ja arendustegevuse vastu nende kompleksse populariseerimisprogrammi kaudu

Bänd või korporatsioon? Identiteedivalikud kunstnike eneseorganiseerumisel = Band or corporation? Identity choises in the self-organisation of artists / Karin Laansoo

Index Scriptorium Estoniae

Laansoo, Karin, 1976-

2009-01-01

Aastatuhandevahetuse ümber Eestis loodud kunstirühmitustest, nende tekkimise põhjustest ja toimimisloogikast. Sotsialismiaegsed kollektivismi ideaalid kõrvutasid end uue, kapitalistliku bränditeadlikkusega. Pikemalt rühmitustest Troubleproduction, Avangard, Multikultuurimaja

Kultuuriline, sotsiaalne ja majanduslik kapital : Eesti inimeste ressursid erinevates eluvaldkondades / Pille Pruulmann-Vengerfeldt

Index Scriptorium Estoniae

Pruulmann-Vengerfeldt, Pille, 1978-

2004-01-01

Ülevaade kultuurilisest, sotsiaalsest ja majanduslikust kapitalist - nii nende teoreetilisest ideest kui ka kapitali mõõtmise ning arvutamise süsteemist, kapitali jaotumisest põhilistes rahvarühmades, kapitalide omavahelistest seostest

JeS rasskazhet o nashihh pravahh / Karina Vabson

Index Scriptorium Estoniae

Vabson, Karina

2005-01-01

Euroopa Komisjoni Õiguse, Vabaduse ja Turvalisuse Peadirektoraat korraldab üheksatteistkümmet Eesti linna läbiva Euroopa Liitu tutvustava interaktiivse infokampaania informeerimaks inimesi nende õigustest Euroopa kodanikena. Lisatud: infokampaania ajagraafik

Hella hingega karmid naised / Krista Kaer

Index Scriptorium Estoniae

Kaer, Krista

1996-01-01

Tänapäeva kriminaalromaani inglise ja ameerika autoritest (Dame Phyllis Dorothy James, Joan Smith, Lynda La Plante (inglise); Sara Paretsky, Sue Grafton, Patricia Cornwell (ameerika) ja nende poolt loodud naisdetektiivi kujudest

Regionaalsete toetusprogrammide mõju kohalike omavalitsuste arengule / Monica Hankov, Jüri Sepp, Siret Vildo

Index Scriptorium Estoniae

Hankov, Monica

2004-01-01

Analüüsi tulemustest selgus, et vaatamata toetusprogrammide rakendamisele ei ole regionaalsed erinevused Eesti piirkondade vahel vähenenud. Diagramm. Tabelid. Lisa: EAS regionaalprogrammide sihtalad, nende eripärad ja arengueeldused

Terve mõistusega ahnuse vastu / Ain Aaviksoo

Index Scriptorium Estoniae

Aaviksoo, Ain, 1974-

2005-01-01

Dokumentaalfilm "Ülisuur mina" ("Super Size Me") : režissöör Morgan Spurlock : Ameerika Ühendriigid 2004. Turumajandusest, dieedist ja toitumisest, filmi hoiatavast osast eelkõige teistmelistele ja nende kasvatajatele

Kuidas alliansid taas edukaks muuta / Mitchell P Koza, Arie Y Lewin

Index Scriptorium Estoniae

Koza, Mitchell P

2002-01-01

Alliansside strateegiast lähtuvalt jagunevad need kasutus- (exploitation) ja uurimisallianssideks (exploration alliances). Autorid kirjeldavad 3 liiki strateegilisi alliansse - ärilised, õppimis- ja hübriidalliansid ning nende põhimõttelisi erinevusi

Remarks on semantic peculiarities of numerals and on usage of numerals in several kinds of texts / Larissa Naiditch

Index Scriptorium Estoniae

Naiditch, Larissa

2001-01-01

Tähelepanu pööratakse juhtudele, kui arvsõna semantika ei piirdu objektide loendamise, järjestuse või arvu ideega. Analüüsitakse nende kasutamist folklooritekstides ja propagandistlikes tekstides

Match-fixing: the current discussion in Europe and the case of the netherlands / Toine Spapens, Marjan Olfers

Index Scriptorium Estoniae

Spapens, Toine

2015-01-01

Hollandis läbi viidud uuringust kokkulepete tegemise kohta ja nende sõlmimisega seotud riskidest. Kokkulepete kõrgest tasemest spordis, hasartmängukorraldajate ja valitsusasutuste seas nii siseriiklikul kui ka rahvusvahelisel tasandil

Visionäärid ning disaini hälli kiigutajad Charles ja Ray Eames / Katrin Kask

Index Scriptorium Estoniae

Kask, Katrin

2007-01-01

Ameerika disainiklassikute Charles (1907-1978) ja Ray Eamesi (1912-1988) disainitud toolidest. Nende oma majast Californias, mis koosneb tehases valmistatud teras-, vineer- ja klaasdetailidest. Filmidest "Ülevaade Metropolitanist" ja "Powers of Ten"

Krizis v tranzitnom koridore / Jevgeni Ashihmin

Index Scriptorium Estoniae

Ashihmin, Jevgeni

2007-01-01

Aprillisündmuste mõjul raskeid aegu elaval Eesti transiidisektoril on uued katsumused - mitmed firmad on sattunud Venemaal musta nimekirja ning nende kauba eskortimine sihtpunkti pikendab veelgi ootejärjekordi Narva piiripunktis

Minister proposed bank moratorium

Index Scriptorium Estoniae

2009-01-01

Läti transpordiminister Ainars Slesers teatas, et tuleks vastu võtta seadus, mis keelaks pankadel eluasemelaenu tagasimaksmisel hätta sattunud inimesi nende kodudest kolme aasta jooksul välja tõsta

Mir ne silno priros tshudesami

Index Scriptorium Estoniae

2007-01-01

7. juulil 2007 valitakse Lissabonis 7 uut maailmaimet. Finaalis on 21 objekti, nende hulgas Egiptuse püramiidid, Ateena Akropol, Rooma Colosseum, Sydney ooperimaja, Eiffeli torn, Angkor Wat Kambodzhas. Valikukriteeriumidest, esitatud objektidest

Kesk- ja Ida-Euroopa teel euro poole / Lennart Meri

Index Scriptorium Estoniae

Meri, Lennart, 1929-2006

2007-01-01

Hypo-Vereinsbank'i konverentsil Münchenis 23. septembril 2004. a. peetud kõne. Eesti vahekord rahaliidu ja euroga, Kesk-Euroopa ja Ida-Euroopa reformiriigid ja nende piirid, Eesti kiire arengu põhjused

Eduard Tubina muuseum = The Eduard Tubin Museum

Index Scriptorium Estoniae

2012-01-01

Eduard Tubina muuseumi ja ekspositsiooni kujundusest. Kogu mööbel ja vitriinkapid projekteeriti spetsiaalselt muuseumisse. Sisearhitektid Kärt Loopalu, Krista Thomson (OÜ Superellips), Liina Langemets, loetletud nende tehtud töid

ABC Kinga kauplused = ABC King shoe stores

Index Scriptorium Estoniae

2011-01-01

Tallinnas Kristiine keskuses, Tartu Kaubamajas ja Pärnus Port Artur 2 asuvate ABC Kinga kaupluste sisekujundusest. Sisearhitekid Andres Labi ja Janno Roos (Ruumilabor OÜ), loetletud nende ühiselt tehtud töid

"Kohtuniku ees seisab kaks jumalat, kaks õigust ja kibe tarvidus ühte kui teist ehk mõlemaid korraga teenida." / Olja Kivistik

Index Scriptorium Estoniae

Kivistik, Olja, 1989-

2012-01-01

20. saj. alguses kohaldatud kriminaalseadustikest Tsaari-Venemaal (ka Eestis), nendes sätestatud usuvastaste süütegude koosseisude rakendamisest. Tsaariaegse Tallinna Ringkonnakohtu lahenditest ajal, kui kehtisid samaaegselt vana ja uus nuhtlusseadustik

Tšehhi sambafirma tahtis raha Dubaisse kantida / Raimo Poom

Index Scriptorium Estoniae

Poom, Raimo

2010-01-01

Vabadussõja võidusamba ehitaja Sans Souci esitas projekti teostamise käigus kaitseministeeriumile ettepaneku, et Eesti võiks hakata samba eest tasuma nende kontserni kuuluva Dubai ettevõtte arvele. Kaitseministeerium keeldus

Alessi : unistuste vabrik : 8 / Alberto Alessi

Index Scriptorium Estoniae

Alessi, Alberto

1999-01-01

Itaalia firma Alessi juures töötavate firmade Battista Piazza ja Tendentse toodangust. Alessandro Mendini projektist: 1992. a. anti standardne vaas kujundada sajale kunstnikule (nende hulgas Kalev Mark Kostabi). 30 illustratsiooni

Eestikeelseid filosoofiaraamatuid oodates / Leo Luks, Margus Ott

Index Scriptorium Estoniae

Luks, Leo, 1976-

2016-01-01

Möödunud aastal ilmus kaks algupärast eestikeelset filosoofiamonograafiat - Margus Oti "Vägi" ja Leo Luksi "Nihilism ja kirjandus". Nende autorid arutlevad vestluses, miks on filosoofiaraamatuid nii vähe

Euroopa naabruspoliitika ei ole viisakas äraütlemine / Marianne Mikko

Index Scriptorium Estoniae

Mikko, Marianne, 1961-

2006-01-01

Euroopa Parlamendi liikme sõnul reageeris europarlament Transnistria rahvahääletusele resolutsiooniga, andes märku, et ei tunnusta separatiste, nende korraldatud rahvahääletusi ega hääletustulemusi

Erotitsheski konspekt / Vladimir Makarenko, Mihhail Duhhomjonok, Ado Lill ; interv. Galina Balashova

Index Scriptorium Estoniae

Makarenko, Vladimir

2002-01-01

Näitusel "Art-delikatess" osalevate kunstnikega nende töödest erootikanäitusel galeriis Magnon Tallinnas. Vestlevad Vladimir Makarenko, Mihhail Duhhomjonok, Ado Lill, Valeri Vinogradov, Anatoli Strahhov, Slava Semerikov, Andrei Balashov

Luupaljas hüljesnaine ja mineviku vangid / Aare Ermel

Index Scriptorium Estoniae

Ermel, Aare, 1957-2013

2010-01-01

PÖFFi filmidest: Neil Jordani "Undiin" (Iirimaa - USA, 2009), Debra Graniku "Luupaljas" (USA, 2010), Urszula Antoniaki "Ei midagi isiklikku" (Iirimaa - Holland, 2009) ja Juan Jose Campanella "Saladus nende silmades" (Hispaania - Argentiina, 2009)