Search of new scintillation materials for nuclear medicine application

CERN Document Server

Korzhik, M

2001-01-01

Oxide crystals have a great potential to develop new advanced scintillation materials which are dense, fast, and bright. This combination of parameters, when combined to affordable price, gives a prospect for materials to be applied in nuclear medicine devices. Some of them have been developed for the last two decades along the line of rear-earth (RE) garnet (RE//3Al//5O//1//2) oxiorthosilicate (RE//2SiO//5) and perovskite (REAlO//3) crystals doped with Ce ions. Among recently developed oxide materials the lead tungstate scintillator (PWO) becomes the most used scintillation materials in high energy physics experiments due to its application in CMS and ALICE experiments at LHC. In this paper we discuss scintillation properties of some new heavy compounds doped with Ce as well as light yield improvement of PWO crystals to apply them in low energy physics and nuclear medicine. 18 Refs.

Teadustegevuse finantseerimise ja administreerimise põhimõtetest Turu Ülikoolis / Aarne Leisalu, Kait Oole

Index Scriptorium Estoniae

Leisalu, Aarne

2004-01-01

Turu Ülikooli teadusosakonna juhataja dr. Eliisa Särkilahti ettekandest Balti mere regiooni ülikoolide võrgustiku seminaril "Research Support Services Promoting Exploitation of University Expertise" Riias 3.-4.10.2003 a.

Toward a culture-by-context perspective on negotiation: negotiating teams in the United States and Taiwan.

Science.gov (United States)

Gelfand, Michele J; Brett, Jeanne; Gunia, Brian C; Imai, Lynn; Huang, Tsai-Jung; Hsu, Bi-Fen

2013-05-01

Within the United States, teams outperform solos in negotiation (Thompson, Peterson, & Brodt, 1996). The current research examined whether this team advantage generalizes to negotiators from a collectivist culture (Taiwan). Because different cultures have different social norms, and because the team context may amplify the norms that are salient in a particular culture (Gelfand & Realo, 1999), we predicted that the effect of teams on negotiation would differ across cultures. Specifically, we predicted that since harmony norms predominate in collectivist cultures like Taiwan, the team context would amplify a concern with harmony, leading Taiwanese teams to negotiate especially suboptimal outcomes. In support, 2 studies showed that Taiwanese teams negotiated less-optimal outcomes than Taiwanese solos. We also used a moderated-mediation analysis to investigate the mechanism (Hayes, 2012), documenting that the interactive effect of culture and context on outcomes was mediated by harmony norms. By showing that the same situational conditions (team negotiations) can have divergent effects on negotiation outcomes across cultures, our results point toward a nuanced, sociocontextual view that moves beyond the culture-as-main-effect approach to studying culture and negotiations. PsycINFO Database Record (c) 2013 APA, all rights reserved.

Hydrology and Oceanography Analysis Regarding The NPP Site Screening Process at Banten Province

International Nuclear Information System (INIS)

Yarianto-S-Budi-Susilo

2007-01-01

Regarding the NPP development in the future, it is needed to make inventory of potential site in the Java Island as well as in the outside Java Island. The NPP site inventory availability is to answer the energy demand challenge. Site screening process should be performed in accordance with the IAEA safety standard regarding the site selection, investigating several aspects related to the NPP safety (exclusion, safety and suitability factor) in the large area to obtain potential site candidates. For the site survey stage of hydrology and oceanography aspects, the analysis are more focused on the tidal phenomena along the north coastline, bathymetry, water resource, and hydrology system in the Banten Province. The method used are secondary data collection, field confirmation and internet searching. The result of the study showed that Tanjung Pujut and Tanjung Pasir are suitable based on the bathymetry and water intake facility consideration. Meanwhile Tanjung Kait and Tanjung Pasir more suitable considering tsunami aspects that may be generated by Krakatau Volcano. (author)

Veselības aprūpes iemaņas pusaudžiem bērnu namā

OpenAIRE

Zūpe, Daira

2008-01-01

Pētniecības darbā „Veselības aprūpes iemaņas pusaudžiem bērnu namā” autore Daira Zūpe izpēta un analizē vienu no bērnu namu aktuālajām problēmām veselības profilakses veicināšanā – veselības aprūpes iemaņu attīstīšanu. Pētījumā uzmanība pievērsta māsas lomai bērnu nama pusaudžu veselības aprūpes procesā, kur akcentēta veselības aprūpes pamatiemaņu nozīme veselības vecināšanā - fiziskās aktivitātes, ēšanas paradumi, kaitīgie ieradumi un higiēnas iemaņas. Pētniecības darba zinātniskā vadītā...

Smēķēšanas dūmu ķīmiskā sastāva un izplatības mainības novērtējums iekštelpu vidē

OpenAIRE

Vesere, Sandra

2017-01-01

Maģistra darbā „Smēķēšanas dūmu ķīmiskā sastāva un izplatības mainības novērtējums iekštelpu vidē” raksturota iekštelpu gaisa kvalitāte, “slimās ēkas sindroms”, to veicinošie faktori, smēķēšanas process un tā ietekme uz veselību. Smēķēšanas laikā radušos dūmu sastāvā ir vairāk nekā 5000 ķīmisku vielu, kuras izplatās telpā un rada piesārņojumu, kas kaitīgs ir ne tikai aktīvajam, bet arī pasīvajām smēķētājam. Pētījums veikts, lai novērtētu šo dūmu ķīmisko sastāvu un vielu noturību iekštelpu vid...

Effect of inclusions modified by rare earth elements (Ce, La) on localized marine corrosion in Q460NH weathering steel

International Nuclear Information System (INIS)

Liu, Chao; Revilla, Reynier I.; Liu, Zhiyong; Zhang, Dawei; Li, Xiaogang; Terryn, Herman

2017-01-01

Highlights: •The initial stages of the pitting corrosion of Q460NH steel in a marine environment was studied. •Two different types of inclusions formed in the Q460NH steel after adding rare earth. •Both types of inclusions showed a lower Volta potential than the matrix. •Pitting corrosion was induced by the dissolution of inclusions rather than the matrix. •Inclusions containing (RE)AlO 3 dissolved completely as a result of the acidic solution formed in the pits. -- Abstract: In this work the initial stages of the pitting corrosion in Q460NH weathering steel in a marine environment was studied. To elucidate the effects of inclusions modified by rare earth (RE) elements on pitting corrosion, field emission-scanning electron microscopy-energy dispersive spectrometry (FE-SEM-EDS) analyses, scanning Kelvin probe force microscopy (SKPFM) tests, and a series of immersion tests were conducted. Two main types of inclusions were formed in the steel, and different pit morphologies were observed. The pitting corrosion was initiated by the dissolution of (RE) 2 O 2 S-(RE)xSy in both types of inclusions due to the lower potential of this phase compared to the matrix, which indicated that the inclusions in the Q460NH weathering steel had a lower pitting corrosion resistance than the matrix.

Reverberation Mapping of the Kepler target KA1858+48

Science.gov (United States)

Pei, Liuyi; Barth, A. J.; Malkan, M. A.; Cenko, S. B.; Clubb, K. I.; Filippenko, A. V.; Gates, E. L.; Horst, J.; Joner, M. D.; Leonard, D. C.; Sand, D. J.

2013-01-01

KA1858+48 is a Seyfert 1 galaxy at redshift 0.078 and is among the brightest active galaxies being monitored by the Kepler mission. We have carried out a reverberation mapping program designed to measure the broad-line region size and estimate the mass of the black hole in KA1858+48. We obtained spectroscopic data using the Kast Spectrograph at the Lick 3 m telescope during dark runs from late winter through fall of 2012, by requesting an observation on each night that the Kast Spectrograph was mounted on the telescope. We also obtained V-band images from the Nickel 1 m telescope at Lick Observatory, the 0.9 m telescope at Brigham Young University West Mountain Observatory, the Faulkes Telescope North at the Las Cumbres Observatory Global Telescope, the KAIT telescope at Lick Observatory, and the 1 m telescope at Mt. Laguna Observatory. The H-beta light curve shows a lag time of approximately 12 days with respect to the V-band continuum flux variations. We will present the continuum and emission-line light curves, cross-correlation lag measurements, and a preliminary estimate of the black hole mass in KA1858+48.

Discovering the Nature of Dark Energy: Towards Better Distances from Type Ia Supernovae -- Final Technical Report

Energy Technology Data Exchange (ETDEWEB)

Filippenko, Alexei Vladimir [Univ. of California, Berkeley, CA (United States)

2014-05-09

Type Ia supernovae (SNe Ia; exploding white-dwarf stars) were the key to the Nobel-worthy 1998 discovery and subsequent verification that the expansion of the Universe is accelerating, driven by the effects of dark energy. Understanding the nature of this mysterious, yet dominant, component of the Universe is at the forefront of research in cosmology and fundamental physics. SNe Ia will continue to play a leading role in this enterprise, providing precise cosmological distances that improve constraints on the nature of dark energy. However, for this effort to succeed, we need to more thoroughly understand relatively nearby SNe Ia, because our conclusions come only from comparisons between them and distant (high-redshift) SNe Ia. Thus, detailed studies of relatively nearby SNe Ia are the focus of this research program. Many interesting results were obtained during the course of this project; these were published in 32 refereed research papers that acknowledged the grant. A major accomplishment was the publication of supernova (SN) rates derived from about a decade of operation of the Lick Observatory Supernova Search (LOSS) with the 0.76-meter Katzman Automatic Imaging Telescope (KAIT). We have determined the most accurate rates for SNe of different types in large, nearby galaxies in the present-day Universe, and these can be compared with SN rates far away (and hence long ago in the past) to set constraints on the types of stars that explode. Another major accomplishment was the publication of the light curves (brightness vs. time) of 165 SNe Ia, along with optical spectroscopy of many of these SNe as well as other SNe Ia, providing an extensive, homogeneous database for detailed studies. We have conducted intensive investigations of a number of individual SNe Ia, including quite unusual examples that allow us to probe the entire range of SN explosions and provide unique insights into these objects and the stars before they explode. My team's studies have also

GRB 091024A and the nature of ultra-long gamma-ray bursts

International Nuclear Information System (INIS)

Virgili, F. J.; Mundell, C. G.; Harrison, R.; Kobayashi, S.; Steele, I. A.; Mottram, C. J.; Clay, N. R.; Pal'shin, V.; Guidorzi, C.; Margutti, R.; Chornock, R.; Melandri, A.; Henden, A.; Updike, A. C.; Cenko, S. B.; Tanvir, N. R.; Cucchiara, A.; Gomboc, A.; Levan, A.; Cano, Z.

2013-01-01

We present a broadband study of gamma-ray burst (GRB) 091024A within the context of other ultra-long-duration GRBs. An unusually long burst detected by Konus-Wind (KW), Swift, and Fermi, GRB 091024A has prompt emission episodes covering ∼1300 s, accompanied by bright and highly structured optical emission captured by various rapid-response facilities, including the 2 m autonomous robotic Faulkes North and Liverpool Telescopes, KAIT, S-LOTIS, and the Sonoita Research Observatory. We also observed the burst with 8 and 10 m class telescopes and determine the redshift to be z = 1.0924 ± 0.0004. We find no correlation between the optical and γ-ray peaks and interpret the optical light curve as being of external origin, caused by the reverse and forward shock of a highly magnetized jet (R B ≈ 100-200). Low-level emission is detected throughout the near-background quiescent period between the first two emission episodes of the KW data, suggesting continued central-engine activity; we discuss the implications of this ongoing emission and its impact on the afterglow evolution and predictions. We summarize the varied sample of historical GRBs with exceptionally long durations in gamma-rays (≳1000 s) and discuss the likelihood of these events being from a separate population; we suggest ultra-long GRBs represent the tail of the duration distribution of the long GRB population.

An ecodesign method for reducing the effects of hazardous substances in the product lifecycle

Science.gov (United States)

Simanovska, J.; Valters, K.; Bažbauers, G.; Luttropp, C.

2012-10-01

Growing evidence on the indoor and outdoor pollution caused by the flow of man-made products urges that the content and leaching of hazardous substances from products be minimised. One of the ways to reduce the potential adverse impacts caused by these substances could be via ecodesign - i.e. through the consideration of lifecycle-related environmental aspects during the product development. The authors’ review of the existing ecodesign methods highlights the weakness of these methods in identifying and assessing the health-related and environmental impacts of hazardous substances contained in products, especially with regard to the exposure assessment. Therefore, a new, semi-quantitative screening ecodesign method applicable for different types of products has been developed. The method ranks the most severe hazards based on the classification according to the Globally Harmonised System together with the exposure evaluation as well as integrates the aspects of material efficiency. This method is suitable for use in the product development process, requiring decisions to be made based on limited information while integrating the main principles of a scientific risk assessment for chemicals. Application of the method is demonstrated with a case study on products made of plywood. The method makes it possible to identify the needs for and elaboration of ecodesign proposals, and fosters communication and information exchange throughout the supply chain. Augošs pierādījumu daudzums par produktu sastāvā esošo kaitīgo ķīmisko vielu nelabvēlīgo ietekmi uz vidi un cilvēku veselību liecina par nepieciešamību samazināt šādu vielu saturu produktos un izdalīšanos no tiem, ko varētu realizēt ar ekodizaina palīdzību. Pārskatot zinātniskās publikācijas ekodizaina jomā, konstatēts, ka pašreiz ekodizaina metodes nepilnīgi nodrošina materiālu sastāvā esošo vielu kaitīgās ietekmes uz cilvēku veselību un apkārtējo vidi novēršanu. T�

The Relationship of the Murphy-Meisgeier Type Indicator for Children to Sex, Race, and Fluid-Crystallized Intelligence on the KAIT at Ages 11 to 15.

Science.gov (United States)

Kaufman, Alan S.; McLean, James E.

1994-01-01

Four typologies assessed by the Murphy-Meisgeier Type Indicator for Children (C. Meisgeier and M. Murphy, 1987) (Extraversion-Introversion, Sensing-Intuition, Thinking-Feeling, Judging-Perceiving) were related to sex, race/ethnic group, intelligence level, and fluid/crystallized IQ discrepancy for 263 adolescents. The Thinking/Feeling index…

SOSIOLOGI ANAK JALANAN DALAM PERSPEKTIF UNDANG-UNDANG NO. 1 TAHUN 2000 TENTANG PENANGGULANGAN PEKERJA ANAK : STUDI KASUS DI PONOROGO, JAWA TIMUR

Directory of Open Access Journals (Sweden)

Ridho Rokamah

2016-03-01

Full Text Available Penelitian ini mengkaji masalah penyebab terjadinya pekerja anak, dan  implementasi Undang-undang No.1 tahun 2000 tentang Penanggulangan Pekerja Anak.Pendekatan penelitian yang digunakan dalam penelitianini adalah pendekatan kualitatif. Dari hasil penelitiandapat ketahui bahwa alasan anak di bawah umurmenjadi pekerja anak adalah karena ekonomi, mengisiwaktu luang, terpaksa, lari dari rumah, dll. Fenomenaini terjadi karena adanya struktur norma-norma hukumdalam masyarakat yang tidak bisa berlaku. Sedangkanimplementasi undang-undang ini dilapangan jugamasih belum bisa maksimal karena banyak faktor yangsaling kait mengkait, mulai dari keberadaan hukumbaik secara sosiologis maupun filosofis, budaya/norma masyarakat yang mulai luntur, sarana atau fasilitas yang tidak memadai, aparat penegak yang belum tegas, dankesadaran dari seluruh masyarakat untuk menghapuspekerja anak secara integrasi belum terbentuk. kata kunci: Pekerja Anak, UU No.1 Tahun 2000   The number of school dropout children in Ponorogofrom year to year is still high despite decreased. Thisphenomenon led to the opportunitie for children tobecome child laborers. Based on this concern, theresearcher examined the causes of the child laborproblem, and the implementation of Law No. 1 of 2000on Combating Child Labour. The research approachused in this study is a qualitative approach. The resultsof this research is that the main reason of child labor wasan economic factor, leisure time, being forced, or runningaway from home, etc. This phenomenon occurs becauseof the structure of legal norms in the society still can notbe applied. While the implementation of this legislationin the field still can not be maximized because of manyfactors are intertwined, from the existence of laws eithersociological or philosophical, cultural / societal normsthat started to fade, inadequate facilities, non assertiveenforcer and the awareness of the whole society toeliminate child labor in the integration has

Ekoleksikon Ke-Kaghati-An Bahasa Muna

Directory of Open Access Journals (Sweden)

Nirmalasari

2016-10-01

Full Text Available This paper explain about ekoleksikon ke-gahtia-an in Muna. The analysis results obtained Ekoleksikon flora based on the data obtained, such as the bhontu’waru'; bhale 'daunpalma’; kolope 'gadung'; nanasi ‘nanas hutan'. Ekoleksikon fauna of retrieved data, like bubu 'kutu'; dumbi 'kecoa'; waea 'kelelawar'; kaghule-ghule 'ulat'. Ekoleksikon nature, such as ghuse 'hujan'; kawea 'angin'; fiu 'berhembus bertiup’; kabhawo 'gunung'; wite 'bumi/tanah'; kalangkari 'jagung musim timur’. Ekoleksikon of trust retrieved data such as kotupa 'ketupat '; ahera 'akhirat'; dupa 'dupa'; dhoa 'doa'; mate 'mati/meninggal'. Lingual units of lexicon ke-kaghati-an Muna focused on forms and categories. The form of a lexicon based on the data obtained, acquired lexicon singular, complex forms (affixation and reduplication and plural. That includes the singular as tapu 'ikat'; bhera 'patah'; Tomba 'keranjang'; pani 'sayap'; alo 'malam'; bhala 'dosa'; simpi 'jepit'; and pughu 'pohon'. While including in the form of the complex is divided into affixation groups such as bhatende 'dianjung', kasaa ‘alat penyeimbang’, fohoro 'terbangkan'; fekalaa 'luruskan/jadikan lurus'; meala 'mengambil'; pokai 'saling kait'; setomba 'satu keranjang'; piki-owa-hi-ghoo 'segera ditambahkan talinya'; kalaghoo 'bawa pergi'; and didiwi 'sayati'. The word group as sala bhate 'salah bentuk’; kawea bunta 'angin di awan' including plural. The Reduplication words Group; such as ule--> kaule-ule 'berputar'; kangia--> ‘ka-kangi-kangia 'berputar terus menerus'. As for the category lexicon ke-kaghati-an the category of nouns, verbs, and adjectives. Categories of nouns such as kalolonda, punda. Categories of verbs like kumbu, pulo, timpu, lepesi. Adjectival category retrieved lexicon lexicon-like malu 'lembek'; ghosa 'keras’; todo 'kencang'; nifi 'tipis'. The phrase falia ke-kaghati-an acquired data such as O falia nelaa kaindereno, nomangkulepaane 'pemali rangka tengahnya diambil dari

137Cs in forest ecosystems in Estonia

International Nuclear Information System (INIS)

Martin, Jueri; Martin, Ljudmilla; Paern, Henn; Vilde, Raimolt

1996-01-01

Full text: In the recently published 'Europe's Environment' (1995) one can find the map on 1 37C s cumulative deposition in Europe after the Chernobyl accident (source: De Corte et al., 1990). On this map most of the Eastern Europe including Baltic Sea region is practically uncovered. In this reason we decided to present data on accumulation of 1 37C s in the forest ecosystems in Estonia. Field sampling for current study has been conducted in 1986 - 1994. 1 37C s concentrations were measured in different compartments of model trees, ground vegetation layers, debris and topsoil. The amount of 1 37C s varied from 1.9 kBq/m 2 in continental Estonia to 28.8 kBq/m 2 in north-eastern Ne part of Estonia. The results obtained correspond to data presented in Wahlstroem et al., (1992) for Finland. According to the 'Europe's Environment' criteria northeastern Estonia belongs to the third cumulative deposition zone (10 to 32 kBq/m 2 ). In Estonia the total deposition of 1 37C s varies in the range from practically zero to 3.9 kBq/m 2 . The calculations of Realo et al. (1994) back to May 1, 1986 gave figures from 0 to 21 kBq/m 2 . In macro lichens Cetraria, Cladina, Cladonia the rapid changes in 1 37C s concentrations were observed: 0.06 - 0.18 kBq/kg in 1982-85, 0.93 - 6.23 kBq/kg in 1986-87, 0.27 -4.26 kBq/kg in 1988-89, 0.05 - 1.46 kBq/kg in 1990-91 and, finally, 0.03 - 0.46 kBq/kg in 1993-94. At the end of the observation period average value of the 1 37C s concentrations was the same as maximum before the CRA and decline of the concentrations was 4 times during six years. Average concentrations of 1 3 7 C s in two common forest mosses Pleurozium shreberi and Hylocomium splendens was 0.43 kBq/kg of dry matter and in forest debris 0.38 kBq/kg. In 1986 the highest concentration in mushrooms - 16.6 kBq/kg was found in Lactarius sp. (Martin, L., et al., 1991). In 1991 samples of 41 different mushroom species from 63 sample sites mostly in Scots pine stands were analyzed. The

CeO2-TiO2 Photocatalyst: Ionic Liquid-Mediated Synthesis, Characterization, and Performance for Diisopropanolamine Visible Light Degradation

Directory of Open Access Journals (Sweden)

Jagath Retchahan Sivalingam

2018-01-01

Full Text Available CeO2-TiO2 photocatalyst with Ce:Ti molar ratio of 1:9 was synthesized via co-precipitation method in the presence of 1-ethyl-3-methyl imidazolium octylsulfate, [EMIM][OctSO4] (CeO2-TiO2-IL. The ionic liquid acts as a templating agent for particle growth. The CeO2-TiO2 and TiO2 photocatalysts were also synthesized without any ionic liquid for comparison. Calcination was conducted on the as-synthesized materials at 400˚C for 2 h. The photocatalysts were characterized using diffuse reflectance UV-Vis spectroscopy (DR-UV-Vis, field emission scanning electron microscopy (FESEM, X-ray powder diffraction (XRD, and surface area and pore size analyzer (SAP. The presence of CeO2 has changed the optical property of TiO2. It has extended the absorption edge of TiO2 from UV to visible region. The calculated band gap energy decreased from 2.82 eV (TiO2 to 2.30 eV (CeO2-TiO2-IL. The FESEM morphology showed that samples forms aggregates and the surface smoothens when ionic liquid was added. The average crystallite size of TiO2, CeO2-TiO2, and CeO2-TiO2-IL were 20.8 nm, 5.5 nm, and 4 nm. In terms of performance, photodegradation of 1000 ppm of diisopropanolamine (DIPA was conducted in the presence of hydrogen peroxide (H2O2 and visible light irradiation which was provided by a 500 W halogen lamp. The best performance was displayed by CeO2-TiO2-IL calcined at 400˚C. It was able to remove 82.0% DIPA and 54.8% COD after 6 h reaction.  Copyright © 2018 BCREC Group. All rights reserved Received: 26th July 2017; Revised: 22nd October 2017; Accepted: 29th October 2017; Available online: 22nd January 2018; Published regularly: 2nd April 2018 How to Cite: Sivalingam, J.R., Kait, C.F., Wilfred, C.D. (2018. CeO2-TiO2 Photocatalyst: Ionic Liquid-Mediated Synthesis, Characterization, and Performance for Diisopropanolamine Visible Light Degradation. Bulletin of Chemical Reaction Engineering & Catalysis, 13 (1: 170-178 (doi:10.9767/bcrec.13.1.1396.170-178

Nutritional guidance during prenatal care in public health services in Ribeirão Preto: discourse and care practice Orientación nutricional en el prenatal en servicio público de salud de la ciudad de Ribeirão Preto: el discurso y la práctica asistencial Orientação nutricional no pré-natal em serviços públicos de saúde no município de Ribeirão Preto: o discurso e a prática assistencial

Directory of Open Access Journals (Sweden)

Luzia Aparecida dos Santos

2006-10-01

Full Text Available This study aimed to verify if pregnant women attended in prenatal care services at Basic Health Units in Ribeirão Preto-SP, Brazil, received nutritional guidance and if this guidance was pertinent to their nutritional status. Ninety-one pregnant women participated. The pregnant women were classified according to their nutritional condition, using a weight, height and pregnancy stage table established by the Brazilian Health Ministry's technical prenatal care manual. We found pregnant women with weight under (13.19% and exceeding normal levels (37.36%. Independently of their nutritional condition, most of them (60.43% declared they did not receive nutrition guidance. The mean number of prenatal visits did not influence the nutritional status. The results reveal deficiencies in the contents and quality of nutritional care. This suggests the need for care changes so as to turn discourse into practice.La finalidad del presente estudio fue verificar las orientaciones nutricionales dadas a mujeres gestantes que recibían atención en el prenatal de las Unidades Básicas de Salud de la ciudad de Ribeirão Preto-SP, y si las orientaciones eran pertinentes al estado nutricional. Participaron de la investigación 91 gestantes. Clasificamos a las gestantes de acuerdo con el estado nutricional, usando la tabla de peso/altura según la edad gestacional sugerida por el manual técnico de asistencia prenatal del Ministerio de la Salud de Brasil. Encontramos gestantes con peso inferior (13,19% y superior al normal (37,36%. Independiente del estado nutricional, la mayoría de las gestantes (60,43% relató no haber recibido orientación sobre nutrición. El número medio de consultas no influenció el estado nutricional. Los resultados indican deficiencias en el contenido y en la calidad de la atención nutricional, sugiriendo la necesidad de adecuación de la atención, trasformando el discurso en una práctica real.O objetivo deste estudo foi verificar as

Enrichment of {sup 210}Po and {sup 210}Pb in ash samples from oil shale-fired power plants in Estonia

Energy Technology Data Exchange (ETDEWEB)

Ozden, B. [University of Tartu, Institute of Physics/Ege University, Institute of Nuclear Sciences (Estonia); Vaasma, T.; Kiisk, M.; Suursoo, S.; Tkaczyk, A.H. [University of Tartu,Institute of Physics (Estonia)

2014-07-01

Energy production in Estonia is largely dependent on the oil shale industry. Oil shale is a fossil fuel typically characterized by relatively high mineral composition, modest organic fraction (varying between 10 and 65%), high ash content (usually 45% to 50%), and average lower heating value of 8.4 MJ/kg{sup -1}. Oil shale-fired power plants account for 85% of Estonian electricity production and produce up to 6 million tons of oil shale ash annually. This ash contains elevated amounts of natural radionuclides (from the {sup 238}U and {sup 232}Th series and {sup 40}K), which were bound to oil shale during its formation. These radionuclides become enriched in ash fractions during the combustion process and are partially emitted to the atmosphere via fly ash and flue gases. Oil shale-fired electricity production is foreseen to remain a dominant trend in Estonia, suggesting that the radionuclide emissions to the atmosphere will continue in the future. The natural radionuclides {sup 210}Po and {sup 210}Pb, with half-lives of 138 days and 22.3 years respectively, originate from the radioactive decay of radionuclides of {sup 238}U series present in the earth's crust. These radionuclides are also built up artificially in the environment due to waste discharge from phosphate, oil, and gas industries, combustion of fossil fuels and other energy production as technically enhanced natural radionuclides. There are few studies on oil shale power plants influence on the levels of natural radioactivity in the surrounding areas. Realo, et al. reported that the annual doses from fly ash depositions over a 30 year period are in the range 90 - 200 μSv a{sup -1}. A study previously initiated by the University of Tartu, Institute of Physics (IPh) evaluated enrichment in the activity concentrations of {sup 238}U, {sup 226}Ra, {sup 210}Pb, {sup 232}Th, {sup 228}Ra and {sup 40}K in ash samples collected from Eesti Power Plant's circulating fluidized bed (CFB) boiler. According

Summer Final Report

Science.gov (United States)

Makidi, Nitou

2012-01-01

The summer of 2012 has been filled with many memorable events and activities. As an intern, I had responsibilities that had to be fulfilled. My tour of duty was completed as an administrative student trainee in the Information Technology and Communications Services Business Office (IT-A). In accordance with the Business Objectives and Agreement of the Business Office and my performance plan, I was to provide business office support, improve business, project management, and technical work processes. With this being stated, I supported a project called "The Big Move Project" (TBMP), which will take course over the next several years. The Big Move Project is the planning of the Information Technology (IT) Directorate's relocation to various buildings in the course of upcoming years, when designs and the building of Central Campus have been completed. Working directly with my supervisor and the project manager, I was responsible for gathering both administrative and operational area requirements for the Information Technology (IT) Directorate, along with its outsourced support and contractors, such as IMCS, NICS, and ACES. My first action was to create rubrics that will serve as a guideline for the information that should be given by each branch of IT. After receiving that information via a few KAITS actions, I was able to start the consolidation process, and begin working on a presentation. A SharePoint was created shortly after for others to view the progression of the project, which I managed. During the consolidation ofthis information, I would occasionally present to the IT Deputy Director and IT Chiefs. The draft of this presentation was shown to employees of Center Operations (T A) and stakeholders-IT Chief Officers and contractor managers-in the relocation of IT to make them aware of what requirements must be met that will enable IT to be accommodated appropriately in the design of Central Campus Phase 11-the time in which IT and its contractors are scheduled

Zum Wandel der Rechtsinstitute „Elterliche Sorge“ und „Tėvų valdžia“ des Deutschen und Litauischen Familienrechts. Vokietijos ir Lietuvos šeimos teisių institutų „Elterliche Sorge“ ir „Tėvų valdžia“ kaita

Directory of Open Access Journals (Sweden)

Rasa Darbutaitė

2007-01-01

ėžiant, jog išraiškos formos atspindi tam tikras už jų slypinčias nuostatas. Lyginamas Vokietijos ir Lietuvos civiliniuose kodeksuose nustatytas teisės institutų elterliche Sorge ir tėvų valdžia turinys ir jų išraiškos formų kitimo tendencijos abiejose šalyse. Atkreipiamas dėmesys, kad po daugybės Vokietijoje vykusių reformų teisės instituto pavadinimas, pakeistas iš elterliche Gewalt į elterliche Sorge, išreiškia daug palankesnį požiūrį į vaikų priežiūrą. Supažindinamasu Lietuvos šeimos teisėje anksčiau egzistavusiu teisės institutu tėvystės teisės bei jo nevienareikšmiu pavadinimu. Pateikiamos panaikinto teisės instituto tėvystės teisių atėmimas priežastys. Analizuojama, kodėl siūlomi variantai tėvų globa ir tėvų atsakomybė ir pareigos ne visiškai tiksliai atspindi šio teisės instituto esmę, bei pateikiamos galimos alternatyvos. Lyginant Vokietijos ir Lietuvos šeimos teisės institutų pavadinimų kaitą, galima teigti, jog Vokietijos šeimos teisės institutas elterliche Sorge savo išraiškos forma labiau atspindi rūpinimosi vaikais aspektą nei Lietuvos civiliniame kodekse įtvirtinta tėvų valdžia. Straipsnyje raginama siekti, kad Lietuvoje galiojantys teisės institutai tiek turinio atžvilgiu, tiek išraiškos forma atspindėtų teisės normose užfiksuotą vaiko gerovės ir vaiko interesų viršenybės principą.