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Sample records for acta crystallographica section

  1. Acta Genetica Sinica (Selected Articles),

    DTIC Science & Technology

    1986-04-04

    0879-8SF/ /3 N IT 0󈧬 112. MIRCK L~~Nj~ %. *- - - - - - - - -I.. * .. - II , I FTD-ID(RS)T-0879-85 oM FOREIGN TECHNOLOGY DIVISION ACTA GENETICA SINICA...34 ’ ° ° ° !4 :A.. it.i FTD- ID(RS)T-0879-85 HUMAN TRANSLATION FTD-ID(RS)T-0879-85 4 April 1986 MICROFICHE NR: FTD-86-C-001691 ACTA GENETICA SINICA...merged into this translation were extracted from the best quality copy available. •i 12 (2): 93-101, 1985 Yichuan Xuebao (Acta Genetica Sinica) Genetic

  2. ACTA Technology Presents EPA with Patent Copy

    EPA Pesticide Factsheets

    US EPA SBIR awardee, ACTA Technology, presented James H. Johnson, Director of the US EPA National Center for Environmental Research, and April Richards, Program Manager of the US EPA's SBIR Program, with a copy of their Red Ribbon patent.

  3. Acta Aeronautica et Astronautica Sinica,

    DTIC Science & Technology

    1983-03-04

    numerical subsonic solution (Sells, 1968). Example 2 was an experimental wing NACA R14 A51G31 having airfoil NACA 64A010 which is perpendicular to...perpendicular to the 1/4 chord line is NACA 64A010 . X1/4= 45 , =3, n=2 . Choose a mesh of 31xl3xl9. There are 15 sections along the half wing span. Each section...small perturbation velocity potential equation and I--±0.2 were used at the blunt leading-edge. Table 1. Computed cases of NACA RM A51G31 Wing. M. a

  4. [The thirty years of Acta Genetica Sinica].

    PubMed

    Li, Shao-Wu; Zhou, Su; Xue, Yong-Biao; Zhu, Li-Huang

    2003-04-01

    Acta Genetica Sinica (AGS) is sponsored by the Genetics Society of China and the Institute of Genetics and Developmental Biology of Chinese Academy of Sciences, and is published by Science Press. The journal is a leading national academic periodical and one of the Chinese key periodicals of natural sciences. Currently, AGS is being indexed by several well-known domestic and international indexing systems, such as the American Chemical Digest (CA), BIOSIS database, Biological Digest (BA), Medical Index and Russian Digest (P [symbol: see text]). Papers in the areas of genetics, developmental biology, cell molecular biology and evolution are regularly published by AGS.

  5. 50th Anniversary of Acta stomatologica Croatica

    PubMed Central

    2016-01-01

    Summary Acta stomatologica Croatisa (ASCRO) is scientific-professional magazine whose first issue was published back in 1966. Ever since the magazine publishers were the School of Dental Medicine of the University of Zagreb and the Croatian Dental Association of the Croatian Medical Association. Over the past fifty years two hundred regular editions were pubslihed along with three additions. The magazine has been internationally indexed and it was granted the DOI number. In this way by means of CrossCheck possible plagiarisms are being checked which aims at obtaining originality of the published results. Another peculiarity of ASCRO is bilingualism throughout the whole edition, international recognizability, open source and tradition based on sound foundations. PMID:27688420

  6. Entering the 60th year of Acta Astronautica

    NASA Astrophysics Data System (ADS)

    Chang, Yi-Wei; Chern, Jeng-Shing; Marec, Jean-Pierre

    2014-04-01

    The Acta Astronautica Journal was firstly published in 1955 as the official Journal of the International Astronautical Federation (IAF) with the title Astronautica Acta. It is entering its 60th year in 2014. In 1962, the Astronautica Acta became the official Journal of the International Academy of Astronautics (IAA) established in 1960. A total of 18 volumes had been published from 1955 to 1973 under the leadership of three Editor-in-Chiefs: F. Hecht, Theodore von Karman, and Martin Summerfield. In 1974, A.K. Oppenheim became the new Editor-in-Chief and several evolved changes were performed including change of the title to Acta Astronautica (for grammatical correctness), cover page change, and format change. From 1974 to 2010, another three Editor-in-Chiefs led the journal with 67 volumes published. They were A.K. Oppenheim, Jean-Pierre Marec, and Rupert Gerzer. The current Editor-in-Chief Jeng-Shing Chern (Rock) took over the job from 2011. Total pages and articles published in 2012 are 3586 and 356, respectively. Currently, the Acta Astronautica Editorial Board consists of one Editor-in-Chief, 15 Co-Editors, one Managing Editor and one Honorary Editor-in-Chief (Jean-Pierre Marec). After 59 years, the Acta Astronautica has become a well-known journal worldwide. Its current rank and impact factor are 7/63 and 0.701, respectively. This paper presents some of the details as well as new strategies and steps. In particular, supports from the IAA Academicians are mandatory and most welcome.

  7. Elsevier/Spectrochimica Acta Atomic Spectroscopy Award 2014

    NASA Astrophysics Data System (ADS)

    Omenetto, Nicolo'; de Loos, Greet

    2016-03-01

    This is to announce the 2014 Elsevier/Spectrochimica Acta Award, the annual award honoring the most significant article(s) published in a volume. Elsevier makes this award on behalf of Spectrochimica Acta, Part B, to encourage the publication of top articles in this journal. All papers published during one year are considered for this award and the Editorial Advisory Board and the Guest Editor(s) of the special issue(s) are responsible for the selection. The award consists of a monetary prize of 1000 together with a presentation certificate.

  8. Elsevier/Spectrochimica Acta atomic spectroscopy award 2015

    NASA Astrophysics Data System (ADS)

    Omenetto, Nicolo; de Loos-Vollebregt, Margaretha

    2016-12-01

    This is to announce the 2015 Elsevier/Spectrochimica Acta award, the annual award honoring the most significant article(s) published in a volume. Elsevier makes this award on behalf of Spectrochimica Acta, Part B, to encourage the publication of top articles in this journal. All papers published during one year are considered for this award and the Editorial Advisory Board and the Guest Editor(s) of the special issue(s) are responsible for the selection. The award consists of a monetary prize of 1000 together with a presentation certificate.

  9. Elsevier/Spectrochimica Acta Atomic Spectroscopy Award 2013

    NASA Astrophysics Data System (ADS)

    Omenetto, Nicolo'; de Loos, Greet

    2015-01-01

    This is to announce the 2013 Elsevier/Spectrochimica Acta Award, the annual award honoring the most significant article(s) published in a volume. Elsevier makes this award on behalf of Spectrochimica Acta, Part B, to encourage the publication of top articles in this journal. All papers published during one year are considered for this award and the Editorial Advisory Board and the Guest Editor(s) of the special issue(s) are responsible for the selection. The award consists of a monetary prize of 1000 together with a presentation certificate.

  10. Advertising in Actas Dermosifiliográficas, 1909-1939.

    PubMed

    Díaz-Díaz, R M

    2014-05-01

    We review advertisements published in the journal Actas Dermosifiliográficas between 1909 and 1939. Treatments for sexually transmitted diseases were advertised with particular frequency, and they offer a case in point that exemplifies the close relationship between the pharmaceutical industry and medical journals.

  11. Aortic Disease Presentation and Outcome Associated with ACTA2 mutations

    PubMed Central

    Regalado, Ellen S.; Guo, Dongchuan; Prakash, Siddharth; Bensend, Tracy A.; Flynn, Kelly; Estrera, Anthony; Safi, Hazim; Liang, David; Hyland, James; Child, Anne; Arno, Gavin; Boileau, Catherine; Jondeau, Guillaume; Braverman, Alan; Moran, Rocio; Morisaki, Takayuki; Morisaki, Hiroko; Consortium, Montalcino Aortic; Pyeritz, Reed; Coselli, Joseph; LeMaire, Scott; Milewicz, Dianna M.

    2015-01-01

    Background ACTA2 mutations are the major cause of familial thoracic aortic aneurysms and dissections. We sought to characterize these aortic diseases in a large case series of individuals with ACTA2 mutations. Methods and Results Aortic disease, management, and outcome associated with the first aortic event (aortic dissection or aneurysm repair) were abstracted from the medical records of 277 individuals with 41 various ACTA2 mutations. Aortic events occurred in 48% of these individuals, with the vast majority presenting with thoracic aortic dissections (88%) associated with 25% mortality. Type A dissections were more common than type B dissections (54% versus 21%), but the median age of onset of type B dissections was significantly younger than type A dissections (27 years, IQR 18–41 versus 36 years, IQR 26–45). Only 12% of aortic events were repair of ascending aortic aneurysms, which variably involved the aortic root, ascending aorta and aortic arch. Overall cumulative risk of an aortic event at age 85 years was 0.76 (95% CI 0.64, 0.86). After adjustment for intra-familial correlation, gender and race, mutations disrupting p.R179 and p.R258 were associated with significantly increased risk for aortic events, whereas p.R185Q and p.R118Q mutations showed significantly lower risk of aortic events compared to other mutations. Conclusions ACTA2 mutations are associated with high risk of presentation with an acute aortic dissection. The lifetime risk for an aortic event is only 76%, suggesting that additional environmental or genetic factors play a role in expression of aortic disease in individuals with ACTA2 mutations. PMID:25759435

  12. Cerebral arteriopathy associated with Arg179His ACTA2 mutation

    PubMed Central

    Amans, Matthew R; Stout, Charles; Fox, Christine; Narvid, Jared; Hetts, Steven W; Cooke, Daniel L; Higashida, Randall T; Dowd, Christopher F; McSwain, Hugh; Halbach, Van V

    2013-01-01

    ACTA2 mutations have recently been shown to cause a multisystem smooth muscle dysfunction syndrome that may result in pediatric stroke. We report a case of ACTA2 mutation in a 3-year-old girl presenting with acute ischemic stroke and provide high resolution imaging of the cerebral arteries demonstrating novel findings of multiple tiny aneurysms (particularly in the posterior circulation), as well as the more characteristic imaging phenotype of straightened and narrowed proximal intracranial vessels, dilated cervical vessels and occlusion of the M1 MCA segment without lenticulostriate collateral formation. This newly identified disease should be added to the differential diagnosis of pediatric stroke and cerebral vasculopathy. Neuroradiologists, interventionalists, surgeons and neurologists should become familiar with this rare disease and its clinical sequelae. PMID:24293535

  13. Cardiac α-actin over-expression therapy in dominant ACTA1 disease.

    PubMed

    Ravenscroft, Gianina; McNamara, Elyshia; Griffiths, Lisa M; Papadimitriou, John M; Hardeman, Edna C; Bakker, Anthony J; Davies, Kay E; Laing, Nigel G; Nowak, Kristen J

    2013-10-01

    More than 200 mutations in the skeletal muscle α-actin gene (ACTA1) cause either dominant or recessive skeletal muscle disease. Currently, there are no specific therapies. Cardiac α-actin is 99% identical to skeletal muscle α-actin and the predominant actin isoform in fetal muscle. We previously showed cardiac α-actin can substitute for skeletal muscle α-actin, preventing the early postnatal death of Acta1 knock-out mice, which model recessive ACTA1 disease. Dominant ACTA1 disease is caused by the presence of 'poison' mutant actin protein. Experimental and anecdotal evidence nevertheless indicates that the severity of dominant ACTA1 disease is modulated by the relative amount of mutant skeletal muscle α-actin protein present. Thus, we investigated whether transgenic over-expression of cardiac α-actin in postnatal skeletal muscle could ameliorate the phenotype of mouse models of severe dominant ACTA1 disease. In one model, lethality of ACTA1(D286G). Acta1(+/-) mice was reduced from ∼59% before 30 days of age to ∼12%. In the other model, Acta1(H40Y), in which ∼80% of male mice die by 5 months of age, the cardiac α-actin transgene did not significantly improve survival. Hence cardiac α-actin over-expression is likely to be therapeutic for at least some dominant ACTA1 mutations. The reason cardiac α-actin was not effective in the Acta1(H40Y) mice is uncertain. We showed that the Acta1(H40Y) mice had endogenously elevated levels of cardiac α-actin in skeletal muscles, a finding not reported in dominant ACTA1 patients.

  14. Chinese duo fired for scientific fraud

    NASA Astrophysics Data System (ADS)

    Jiao, Li

    2010-02-01

    A major case of academic fraud in China has led to calls for the country to adopt a new system of academic evaluation that steers away from heavily supporting scientists who publish the most papers. The calls have been made after some 70 papers published by Chinese scientists in Acta Crystallographica Section E were retracted from the journal late last year. The authors acknowledged that their analysis had been fabricated.

  15. Langkocyclines: novel angucycline antibiotics from Streptomyces sp. Acta 3034(*).

    PubMed

    Kalyon, Bahar; Tan, Geok-Yuan A; Pinto, John M; Foo, Cheau-Yee; Wiese, Jutta; Imhoff, Johannes F; Süssmuth, Roderich D; Sabaratnam, Vikineswary; Fiedler, Hans-Peter

    2013-10-01

    Langkocyclines A1-A3 and B1 and B2, five new angucycline antibiotics produced by Streptomyces sp. Acta 3034, were detected in the course of our HPLC-diode array screening. The producing strain was isolated from the rhizospheric soil of a Clitorea sp. collected from Burau Bay, Langkawi, Malaysia, and was characterized by morphological, physiological and chemotaxonomic features in addition to 16S ribosomal RNA gene sequence information. Strain Acta 3034 is closely related to Streptomyces psammoticus NBRC 13971(T) and Streptomyces lanatus NBRC 12787(T). Langkocyclines consist of an angular tetracyclic benz[a]anthracene skeleton and hydrolyzable O-glycosidic sugar moieties. The yellow-colored A-type langkocyclines differ in their aglycon from the blue-lilac-colored B-type langkocyclines. The A-type langkocycline aglycon is identical to that of aquayamycin and urdamycin A. The chemical structures of the langkocyclines were elucidated by HR-MS, 1D and 2D NMR experiments. They are biologically active against Gram-positive bacteria and exhibit a moderate antiproliferative activity against various human tumor cell lines.

  16. Acta stomatologica Croatica and PubMed Central

    PubMed Central

    Brkić, Hrvoje

    2016-01-01

    April 15 2016 marked the 50th anniversary of continuous publishing of the journal Acta stomatologica Croatica (ASCRO). The celebration was held in the great hall of the Croatian Medical Association, with numerous guests from the biomedical field. The history of the journal was presented by Goran Knežević (editor-in-chief 1996-2006) and Hrvoje Brkić (current editor-in-chief), who presented all the current information on the electronical editing and its current indexation. Only a few days later, the Editorial Office received the information that ASCRO has been included in PubMed Central since volume 48, an impulse for the members of the Editorial Board and the Editor-in-Chief to make ASCRO better and more cited PMID:27789906

  17. [History of Actas Dermo-Sifiliográficas, part I: 1909-1959].

    PubMed

    Del Río, E

    2011-11-01

    Actas Dermo-Sifiliográficas was born in May 1909. At first, issues appeared in step with the academic year, but publication began to follow the calendar year in 1957. Volume 18 was skipped in 1926-7 in an effort to correct confusion in the numbering of volumes and pages of earlier issues. October 1928 saw the journal grow from 6 issues per year to 9. Although the Spanish Civil War brought publication to a halt during the 1936-7 academic year, Actas Dermo-Sifiliográficas was one of the first Spanish scientific journals to recover from the conflict. The initial print run of 100 copies was increased to 700 after the war. The content evolved over time: while originally conceived to provide a strict account of sessions of the Spanish Academy of Dermatology and Venereology (AEDV) -originally known as the Spanish Academy of Dermatology and Syphilology- the journal gradually came to include review articles, case reports, a section summarizing the content of international journals, news and various other types of writing. The editorial board and the association's board of directors were one and the same for many years. According to the earliest charter, the editor-in-chief was also the president of the association and the associate editor was the association's vice-president. The subjects of articles provide a faithful portrait of how the specialty has changed. Syphilis, a main concern before the introduction of penicillin in the 1940s, was sidelined afterwards. The appearance of 20th-century pharmaceuticals such as salvarsan, sulfa drugs, thiazides, and corticosteroids were soon reflected in the number of articles describing their use. Certain original contributions by Spanish authors to international dermatology first appeared in Actas Dermo-Sifiliográficas. Examples are Azúa's description of pseudoepithelioma and Covisa and Bejarano's of chancriform pyoderma. Volume 50 (1959), which included accounts of the 50th anniversary of the association and the journal, closed

  18. Acta Clinica Croatica: progress of a journal step by step.

    PubMed

    Ramljak, Gordana

    2014-03-01

    The journal Acta Clinica Croatica (ACC) was founded in 1962 under the title Anali Bolnice Dr. M. Stojanović. In 1995, the title of the journal was changed into its present form and ever since all papers have been published in English. In 2000, the electronic (online) edition of the ACC was released in addition to the print version. The paper presents development of the journal from 1962 to 2012 based on the analysis of the following SCOPUS citation index parameters: type and number of documents published in the journal; number of citations; and number of domestic and foreign authors. The studied period was analyzed in three time segments: the period from 1995 to 1999, the period from 2000 to 2006 and the period from 2007 to 2012. The same parameters were analyzed in the Web of Science/SCI-Expanded bibliographic and citation index for the 2007-2012 period. The increasing number of documents, authors (both domestic and foreign) and citations demonstrates gradual rise in the quality, visibility and impact of the journal. The fifty years of experience show that a goal, at first very distant and almost unachievable, may be reached by progressing step by step.

  19. Acta informatica medica is indexed in pubmed and archived in pubmed central.

    PubMed

    Masic, Izet

    2013-03-01

    Acta Informatica Medica journal has been accepted for archiving in PubMed Central from 2011 onward. The journal started in 1993 as the official journal of the Society for Medical Informatics of Bosnia and Herzegovina. During the last 3 years, Acta Informatica Medica has een included in almost all prestigious online databases, including PubMed, Scopus and EMBASE. The 20th volume of the journal is fully international, with papers from 18 countries.

  20. Acute aortic dissections with pregnancy in women with ACTA2 mutations.

    PubMed

    Regalado, Ellen S; Guo, Dong-chuan; Estrera, Anthony L; Buja, L Maximilian; Milewicz, Dianna M

    2014-01-01

    Mutations in ACTA2 predispose to thoracic aortic aneurysms and dissection as well as coronary artery and cerebrovascular disease. Here we examined the risk of aortic dissections, stroke and myocardial infarct with pregnancy in women with ACTA2 mutations. Of the 53 women who had a total of 137 pregnancies, eight had aortic dissections in the third trimester or the postpartum period (6% of pregnancies). One woman also had a myocardial infarct that occurred during pregnancy that was independent of her aortic dissection. Compared to the population-based frequency of peripartum aortic dissections of 0.6%, the rate of peripartum aortic dissections in women with ACTA2 mutations is much higher (8 out of 39; 20%). Six of these dissections initiated in the ascending aorta (Stanford type A), three were fatal. Three women had ascending aortic dissections at diameters less that 5.0 cm (range 3.8-4.7 cm). Aortic pathology showed mild to moderate medial degeneration of the aorta in three women. Of note, five of the women had hypertension either during or before the pregnancy. In summary, the majority of women with ACTA2 mutations did not have aortic or other vascular complications with pregnancy. However, these findings show that pregnancy is associated with significant risk for aortic dissection in women with ACTA2 mutations. Women with ACTA2 mutations who are planning to get pregnant should be counseled about this risk of aortic dissection, and proper clinical management should be initiated to reduce this risk.

  1. Bacterial Shape and ActA Distribution Affect Initiation of Listeria monocytogenes Actin-Based Motility

    PubMed Central

    Rafelski, Susanne M.; Theriot, Julie A.

    2005-01-01

    We have examined the process by which the intracellular bacterial pathogen Listeria monocytogenes initiates actin-based motility and determined the contribution of the variable surface distribution of the ActA protein to initiation and steady-state movement. To directly correlate ActA distributions to actin dynamics and motility of live bacteria, ActA was fused to a monomeric red fluorescent protein (mRFP1). Actin comet tail formation and steady-state bacterial movement rates both depended on ActA distribution, which in turn was tightly coupled to the bacterial cell cycle. Motility initiation was found to be a highly complex, multistep process for bacteria, in contrast to the simple symmetry breaking previously observed for ActA-coated spherical beads. F-actin initially accumulated along the sides of the bacterium and then slowly migrated to the bacterial pole expressing the highest density of ActA as a tail formed. Early movement was highly unstable with extreme changes in speed and frequent stops. Over time, saltatory motility and sensitivity to the immediate environment decreased as bacterial movement became robust at a constant steady-state speed. PMID:15980176

  2. Beitraege zur Astronomiegeschichte, Band 5 (Acta Historica Astronomiae Vol. 18)

    NASA Astrophysics Data System (ADS)

    Duerbeck, H. W.; Dick, W. R.; Hamel, J.

    2003-01-01

    The 18th volume of the Acta Historica Astronomiae is at the same time the sixth collection of essays on the history of astronomy ("Beitræge zur Astronomiegeschichte, Band 6"), edited by the historians of astronomy W.R. Dick (Potsdam) and J. Hamel (Berlin). Besides a few short notices and book reviews, the book contains eight major articles, which deal with astronomical topics covering the time from the 16th to the 19th centuries. The first article by Michael Weichenhan (Berlin) deals with "the invention of the disk-shaped earth: a chapter of Copernican apologetics". The author shows that the concept of a "disc-shaped Earth" was by no means widespread in the middle ages, but restricted to the father of the church Lactantius and some adherents. Nevertheless, it was used by adherents of Copernicus to show the absurd consequences of a strictly literal biblical interpretation -- here concerning the Earth's shape, disc versus sphere, there the geocentric versus the heliocentric system. This thorough philosophical study is followed by two very short articles. "The measuring accuracy of Tycho's large sextant" by Johann Wünsch investigates O-C values of planet-star distances, as based on Tycho's observations as published in the Historia Coelestis (a compilation, which is also based on Tycho's manuscripts, and published in Regensburg in 1672). The result is that standard deviations are 80 arcseconds for Saturn and 89 arcseconds for Jupiter and Mars, an unexpectedly poor result in view of the general opinion that Tycho was famous for his precision work. "The astronomer Christoph Grienberger and the Galilei trial" by Franz Daxecker deals with a Jesuit astronomer who was both the disciple and successor of the mathematician-astronomer Christopher Clavius at the Collegium Romanum. While he was inclined to Galilei early on, he was forced to propagate Aristotelian doctrine. The brief article is very concise, but extremely tiresome to read (3 pages of pure text are embellished by

  3. Acta Dermatovenerologica Alpina, Pannonica et Adriatica accepted for coverage in Thomson Reuters' Emerging Sources Citation Index (ESCI).

    PubMed

    Poljak, Mario; Miljković, Jovan; Triglav, Tina

    2016-09-01

    Acta Dermatovenerologica Alpina, Pannonica et Adriatica (Acta Dermatovenerol APA) is the leading journal in dermatology and sexually transmitted infections in the region. Several important steps were taken during the last 25 years to improve the journal's quality, global visibility, and international impact. After a 1-year trial period, Thomson Reuters recently informed the editorial office that they had accepted Acta Dermatovenerol APA for coverage in Thomson Reuters' new index in the Web of Science Core Collection called the Emerging Sources Citation Index (ESCI). The coverage of Acta Dermatovenerol APA begins with the journal content published online in 2016; that is, from volume 25 onwards.

  4. Acute Aortic Dissections with Pregnancy in Women with ACTA2 Mutations

    PubMed Central

    Regalado, Ellen S.; Guo, Dong-chuan; Estrera, Anthony L.; Buja, L. Maximilian; Milewicz, Dianna M.

    2014-01-01

    Mutations in ACTA2 predispose to thoracic aortic aneurysms and dissections as well as coronary artery and cerebrovascular disease. Here we examined the risk of aortic dissections, stroke and myocardial infarct with pregnancy in women with ACTA2 mutations. Of the 53 women who had a total of 137 pregnancies, eight had aortic dissections in the third trimester or the postpartum period (6% of pregnancies). One woman also had a myocardial infarct that occurred during pregnancy that was independent of her aortic dissection. Compared to the population-based frequency of peripartum aortic dissections of 0.6%, the rate of peripartum aortic dissections in women with ACTA2 mutations is much higher (8 out of 39; 20%). Six of these dissections initiated in the ascending aorta (Stanford type A), three of which were fatal. Three women had ascending aortic dissections at diameters less that 5.0 cm (range 3.8 to 4.7 cm). Aortic pathology showed mild to moderate medial degeneration of the aorta in three women. Of note, five of the women had hypertension either during or before the pregnancy. In summary, the majority of women with ACTA2 mutations did not have aortic or other vascular complications with pregnancy. However, these findings show that pregnancy is associated with significant risk for aortic dissections in women in whom diagnosis of ACTA2 mutation has not been made. Women with ACTA2 mutations who are planning to get pregnant should be counseled about this risk of aortic dissections, and proper clinical management should be initiated to reduce this risk. PMID:24243736

  5. A novel distinctive cerebrovascular phenotype is associated with heterozygous Arg179 ACTA2 mutations

    PubMed Central

    Munot, Pinki; Saunders, Dawn E.; Milewicz, Dianna M.; Regalado, Ellen S.; Ostergaard, John R.; Braun, Kees P.; Kerr, Timothy; Lichtenbelt, Klaske D.; Philip, Sunny; Rittey, Christopher; Jacques, Thomas S.; Cox, Timothy C.

    2012-01-01

    Mutations in the ACTA2 gene lead to diffuse and diverse vascular diseases; the Arg179His mutation is associated with an early onset severe phenotype due to global smooth muscle dysfunction. Cerebrovascular disease associated with ACTA2 mutations has been likened to moyamoya disease, but appears to have distinctive features. This study involved the analysis of neuroimaging of 13 patients with heterozygous missense mutations in ACTA2 disrupting Arg179. All patients had persistent ductus arteriosus and congenital mydriasis, and variable presentation of pulmonary hypertension, bladder and gastrointestinal problems associated with this mutation. Distinctive cerebrovascular features were dilatation of proximal internal carotid artery, occlusive disease of terminal internal carotid artery, an abnormally straight course of intracranial arteries, and absent basal ‘moyamoya’ collaterals. Patterns of brain injury supported both large and small vessel disease. Key differences from moyamoya disease were more widespread arteriopathy, the combination of arterial ectasia and stenosis and, importantly, absence of the typical basal ‘moyamoya’ collaterals. Evaluation of previously published cases suggests some of these features are also seen in the ACTA2 mutations disrupting Arg258. The observation that transition from dilated to normal/stenotic arterial calibre coincides with where the internal carotid artery changes from an elastic to muscular artery supports the hypothesis that abnormal smooth muscle cell proliferation caused by ACTA2 mutations is modulated by arterial wall components. Patients with persistent ductus arteriosus or congenital mydriasis with a label of ‘moyamoya’ should be re-evaluated to ensure the distinctive neuroimaging features of an ACTA2 mutation have not been overlooked. This diagnosis has prognostic and genetic implications, and mandates surveillance of other organ systems, in particular the aorta, to prevent life-threatening aortic dissection

  6. De Novo ACTA2 Mutation Causes a Novel Syndrome of Multisystemic Smooth Muscle Dysfunction

    PubMed Central

    Milewicz, Dianna M.; Østergaard, John R.; Ala-Kokko, Leena M.; Khan, Nadia; Grange, Dorothy K.; Mendoza-Londono, Roberto; Bradley, Timothy J.; Olney, Ann Haskins; Adès, Lesley; Maher, Joseph F.; Guo, Dongchuan; Buja, L. Maximilian; Kim, Dong; Hyland, James C.; Regalado, Ellen S.

    2011-01-01

    Smooth muscle cells (SMCs) contract to perform many physiological functions, including regulation of blood flow and pressure in arteries, contraction of the pupils, peristalsis of the gut and voiding of the bladder. SMC lineage in these organs is characterized by cellular expression of the SMC isoform of α-actin, encoded by the ACTA2 gene. We report here on a unique and de novo mutation in ACTA2, R179H, that causes a syndrome characterized by dysfunction of SMCs throughout the body, leading to aortic and cerebrovascular disease, fixed dilated pupils, hypotonic bladder, malrotation and hypoperistalsis of the gut and pulmonary hypertension. PMID:20734336

  7. Review of the Journal Acta Informatica Medica During Eight Year Period: 2008-2015

    PubMed Central

    Masic, Izet; Begic, Edin; Zunic, Lejla

    2016-01-01

    Introduction: Acta Informatica Medica is official journal of the Academy for Medical Sciences of Bosnia and Herzegovina (from 2014 Acta Inform Med is published bimonthly). Aim: To evaluate journal “Acta Informatica Medica” in 2015 and compare findings to previous years. Material and methods: The study has retrospective and descriptive character, and included the period 2008-2015 (included 36 issues of journal). Results: A total of 83 (average 13,8 articles per journal) articles were published in Acta Informatica Medica during 2015. Analyzing the type of articles, original articles are present in majority during 2015 (68,6%) (by analyzing last eight years, 310 (67,3%) were original). During 2015, 27,7% of articles were related to the applied of Health informatics in field of clinical medicine, 63,8% preclinical medicine and 8,5% to public health. Collaboration rate in 2015 was 0,84. Most often the time required for decision on acceptance of article in 2015 is between 50 and 60 days. Articles came from 16 countries. According to scimagojr.com for 2014, Acta Informatica Medica has SCImago Journal Rank 0,166, while Cites / Doc. (2 years) parameter (widely used as impact index) is 0,70. According to GoogleScholar, h5 index is 11 and h5 median is 19. We analyzed the Acta Informatica Medica by “Publish or Perish” software - H index was 14, g index was 19 and e-index was 10.39. Conclusion: Year after year the highest number of original articles are published. Although the period of revision of articles is acceptable, the period up to two months is certainly not long, the goal is to reduce this period. Although the magazine in mentioned field found its place, although it is indexed in numerous bases, including: PubMed, PubMed Central, SCOPUS, EMBASE, EBSCO, etc. The main goal for next year is that the magazine becomes part of the Web of Science. Imperative is further internationalization of the magazine. PMID:27147796

  8. Citation analysis of Acta Dermatovenerologica Alpina, Pannonica et Adriatica: 1992-2011.

    PubMed

    Ostrbenk, Anja; Skamperle, Mateja; Poljak, Mario

    2012-09-01

    Acta Dermatovenerologica Alpina, Pannonica et Adriatica is small regional professional journal that started publishing in 1992. Despite the journal's relatively narrow readership, it has significantly improved its quality and global profile during the last 20 years, as shown in this citation analysis update. Since 1992, 654 bibliographical items have been published. Among these, 545 (83.4%) were considered WoS citable items and 109 (16.6%) WoS noncitable items. Since 2008, 90% of all published items have been considered WoS citable items and received an average of 1.9 citations per item. The predicted Acta Dermatovenerol APA impact factor calculated using data from a Cited Reference search of Thomson Scientific's Web of Science has shown steep and continuous increase since 2006, when the journal acquired full indexing status in Index Medicus/Medline, and has been above 0.5 since 2008.

  9. Novel MYH11 and ACTA2 mutations reveal a role for enhanced TGFβ signaling in FTAAD

    PubMed Central

    Renard, Marjolijn; Callewaert, Bert; Baetens, Machteld; Campens, Laurence; MacDermot, Kay; Fryns, Jean-Pierre; Bonduelle, Maryse; Dietz, Hal; Gaspar, Isabel Mendes; Cavaco, Diogo; Stattin, Eva-Lena; Schrander-Stumpel, Constance; Coucke, Paul; Loeys, Bart; De Paepe, Anne; De Backer, Julie

    2011-01-01

    Background Thoracic aortic aneurysm / dissection (TAAD) is a common phenotype that may occur as an isolated manifestation or within the constellation of a defined syndrome. In contrast to syndromic TAAD, the elucidation of the genetic basis of isolated TAAD has only recently started. To date, defects have been found in genes encoding extracellular matrix proteins (fibrillin-1, FBN1; collagen type III alpha 1, COL3A1), proteins involved in transforming growth factor beta (TGFβ) signaling (TGFβ receptor 1 and 2, TGFBR1/2; and SMAD3) or proteins that build up the contractile apparatus of aortic smooth muscle cells (myosin heavy chain 11, MYH11; smooth muscle actin alpha 2, ACTA2; and MYLK). Methods and results In 110 non-syndromic TAAD patients that previously tested negative for FBN1 or TGFBR1/2 mutations, we identified 7 ACTA2 mutations in a cohort of 43 familial TAAD patients, including 2 premature truncating mutations. Sequencing of MYH11 revealed an in frame splice-site alteration in one out of two probands with TAA(D) associated with PDA but none in the series of 22 probands from the cohort of 110 patients with non-syndromic TAAD. Interestingly, immunohistochemical staining of aortic biopsies of a patient and a family member with MYH11 and patients with ACTA2 missense mutations showed upregulation of the TGFβ signaling pathway. Conclusions MYH11 mutations are rare and typically identified in patients with TAAD associated with PDA. ACTA2 mutations were identified in 16% of a cohort presenting familial TAAD. Different molecular defects in TAAD may account for a different pathogenic mechanism of enhanced TGFβ signaling. PMID:21937134

  10. [National and international impact factor of Actas Españolas de Psiquiatría].

    PubMed

    Aleixandre Benavent, R; Valderrama Zurián, J C; Castellano Gómez, M; Simó Meléndez, R; Navarro Molina, C

    2004-01-01

    The aim of this paper is to present the bibliometric indicators of Actas Españolas de Psiquiatría that were obtained from the study "Potential impact factor of the Spanish medical journals in 2001", financed by the Spanish Ministerio de Educación, Cultura y Deporte. The citations made in Actas Españolas de Psiquiatría and its national and international impact factor and immediacy index have been obtained by the use of a methodology similar to the one used by the Institute for Scientific Information. The national indicators only take into account the citations made in 87 Spanish journals considered as sources, while those from the foreign source journals of Science Citation Index have been added to the previously cited ones. Actas Españolas de Psiquiatría has obtained a national impact factor of 0.315 and an international impact factor of 0.395, which places it as a leader in the Spanish psychiatric journals.

  11. Association of ActA to Peptidoglycan Revealed by Cell Wall Proteomics of Intracellular Listeria monocytogenes*

    PubMed Central

    García-del Portillo, Francisco; Calvo, Enrique; D'Orazio, Valentina; Pucciarelli, M. Graciela

    2011-01-01

    Listeria monocytogenes is a Gram-positive intracellular bacterial pathogen that colonizes the cytosol of eukaryotic cells. Recent transcriptomic studies have revealed that intracellular L. monocytogenes alter expression of genes encoding envelope components. However, no comparative global analysis of this cell wall remodeling process is yet known at the protein level. Here, we used high resolution mass spectrometry to define the cell wall proteome of L. monocytogenes growing inside epithelial cells. When compared with extracellular bacteria growing in a nutrient-rich medium, a major difference found in the proteome was the presence of the actin assembly-inducing protein ActA in peptidoglycan purified from intracellular bacteria. ActA was also identified in the peptidoglycan of extracellular bacteria growing in a chemically defined minimal medium. In this condition, ActA maintains its membrane anchoring domain and promotes efficient bacterial entry into nonphagocytic host cells. Unexpectedly, Internalin-A, which mediates entry of extracellular L. monocytogenes into eukaryotic cells, was identified at late infection times (6 h) as an abundant protein in the cell wall of intracellular bacteria. Other surface proteins covalently bound to the peptidoglycan, as Lmo0514 and Lmo2085, were detected exclusively in intracellular and extracellular bacteria, respectively. Altogether, these data provide the first insights into the changes occurring at the protein level in the L. monocytogenes cell wall as the pathogen transits from the extracellular environment to an intracytosolic lifestyle inside eukaryotic cells. Some of these changes include alterations in the relative amount and the mode of association of certain surface proteins. PMID:21846725

  12. Twins with progressive thoracic aortic aneurysm, recurrent dissection and ACTA2 mutation.

    PubMed

    Ware, Stephanie M; Shikany, Amy; Landis, Benjamin J; James, Jeanne F; Hinton, Robert B

    2014-10-01

    Thoracic aortic aneurysm (TAA) is a genetically mediated disease with variable age of onset. In the pediatric age range, nonsyndromic TAA frequently has a milder course than syndromic forms of TAA, such as Marfan syndrome or Loeys-Dietz syndrome. Herein, we describe 17-year-old identical twin brothers with severe progressive TAA due to a novel de novo ACTA2 mutation. Interestingly, both boys were diagnosed at age 11 with congenital mydriasis, a recently recognized manifestation of some ACTA2 mutations due to smooth muscle dysfunction. One of the brothers presented with acute-onset lower back pain that was identified as dissection of an abdominal aortic aneurysm. Imaging of the chest at this time showed severe fusiform TAA. Cardiac imaging in his twin showed similar TAA, but no abdominal aortic aneurysm. Both brothers underwent valve-sparing aortic root replacement, but have had progressive aortic disease with recurrent dissection requiring multiple surgeries. This case emphasizes the importance of identifying physical stigmata of smooth muscle dysfunction, such as mydriasis, as potential markers for associated aortopathy and vascular diseases.

  13. Association between ACTA1 candidate gene and performance, organs and carcass traits in broilers.

    PubMed

    Venturini, G C; Stafuzza, N B; Cardoso, D F; Baldi, F; Ledur, M C; Peixoto, J O; El Faro, L; Munari, D P

    2015-12-01

    This study investigates the genetic association of the SNP present in the ACTA1 gene with performance traits, organs and carcass of broilers to help marker-assisted selection of a paternal broiler line (TT) from EMBRAPA Swine and Poultry, Brazil. Genetic and phenotypic data of 1,400 broilers for 68 traits related to body performance, organ weights, weight of carcass parts, and yields as a percentage of organs and carcass parts were used. The maximum likelihood method, considering 4 analytical models, was used to analyze the genetic association between the SNP and these important economic traits. The association analysis was performed using a mixed animal model including the random effect of the animal (polygenic), and the fixed effects of sex (2 levels), hatch (5 levels) and SNP (3 levels), besides the random error. The traits significantly associated (P<0.05) with the SNP were analyzed, along with body weight at 42 days of age (BW42), by the restricted maximum likelihood method using the multi-trait animal model to estimate genetic parameters. The analysis included the residual and additive genetic random effects and the sex-hatch fixed effect. The additive effects of the SNP were associated with breast meat (BMY), liver yield (LIVY), body weight at 35 days of age (BW35); drumstick skin (DSW), drumstick (DW) and breast (BW) weights. The heritability estimates for these traits, in addition to BW42, ranged from 0.24±0.06 to 0.45±0.08 for LIVY and BW35, respectively. The genetic correlation ranged from 0.02±0.18 for LIVY and BMY to 0.97±0.01 for BW35 and BW42. Based on the results of this study, it can be concluded that ACTA1 gene is associated with performance traits BW35, LIV and BMY, DW, BW and DW adjusted for body weight at 42 days of age. Therefore, the ACTA1 gene is an important molecular marker that could be used together with others already described to increase the economically important traits in broilers.

  14. Cerebral arteriopathy associated with heterozygous Arg179Cys mutation in the ACTA2 gene: Report in 2 newborn siblings.

    PubMed

    de Grazia, Jose; Delgado, Ignacio; Sanchez-Montanez, Angel; Boronat, Susana; Del Campo, Miguel; Vazquez, Elida

    2017-01-01

    Mutations in the ACTA2 gene lead to a multisystemic smooth muscle dysfunction syndrome that causes vascular disease, congenital mydriasis, and variable presentation of urinary and gastrointestinal problems. The heterozygous Arg179 mutation is associated with a distinctive cerebrovascular phenotype. We report the cases of two newborn siblings with heterozygous ACTA2 Arg179Cys substitution and provide neuroimaging exams that demonstrate the distinctive cerebrovascular phenotype, also associated with variable degree of hypoplasia of the vertebro-basilar circulation as well as hypoxic-ischemic lesions.

  15. Nordisk ophthalmologisk tidsskrift 1889-1892: the Nordic Journal of Ophthalmology - a forerunner of Acta Ophthalmologica.

    PubMed

    Ehlers, Niels

    2012-06-01

    In the second half of the nineteenth century several ophthalmological journals appeared (Germany, England, France, United States). In the northern countries (Denmark, Finland, Norway, Sweden) an initiative lead to 'Nordisk ophthalmologisk Tidsskrift' published in the scandinavian languages in the years 1889-92. The 'driving force' behind the journal was the first professor in Ophthalmology in Copenhagen, Dr. Edmund Hansen Grut. The purpose with this presentation is to give the background for the rise and fall of the journal which was an attempt to promote Nordic Ophthalmology. The authors turned out, however, to be mainly those involved as editors. The journal never gained broad acceptance and it simply stopped in 1892, without any closing remarks. In spite of its short life the journal should be remembered for the very first publication on the arcuate scotoma, the Bjerrum scotoma from 1889. Although shortlived the initiative was not in vain, as can be read in the preface to the very first volume of Acta ophthalmologica.

  16. Citation analysis of Acta Dermatovenerologica Alpina, Pannonica et Adriatica: 1992-2013.

    PubMed

    Oštrbenk, Anja; Poljak, Mario

    2015-01-01

    Acta Dermatovenerologica Alpina, Pannonica et Adriatica is the leading journal in the field of dermatology and sexually transmitted infections in the region. Several important steps were taken during the last 20 years to improve the journal's quality, global visibility, and international impact. Since 1992, 699 bibliographical items have been published, which received 1,360 citations. Web of Science citable items received on average 2.29 citations per item. Importantly, almost half (49.6%) of all citations retrieved to date were received from 2012 onwards. The predicted impact factor was calculated in a way to match official impact factors published annually in Thomson Scientific Journal Citation Reports. Citation analysis shows a substantial increase of the predicted impact factor since 2006, with values above 0.5 since 2007. For the first time in the journal's history, a predicted impact factor value above 1.0 was recorded in 2013.

  17. Stereochemistry and conformation of skyllamycin, a non-ribosomally synthesized peptide from Streptomyces sp. Acta 2897.

    PubMed

    Schubert, Vivien; Di Meo, Florent; Saaidi, Pierre-Loïc; Bartoschek, Stefan; Fiedler, Hans-Peter; Trouillas, Patrick; Süssmuth, Roderich D

    2014-04-22

    Skyllamycin is a non-ribosomally synthesized cyclic depsipeptide from Streptomyces sp. Acta 2897 that inhibits PDGF-signaling. The peptide scaffold contains an N-terminal cinnamoyl moiety, a β-methylation of aspartic acid, three β-hydroxylated amino acids and one rarely occurring α-hydroxy glycine. With the exception of α-hydroxy glycine, the stereochemistry of the amino acids was assigned by comparison to synthetic reference amino acids applying chiral GC-MS and Marfey-HPLC analysis. The stereochemistry of α-hydroxy glycine, which is unstable under basic and acidic conditions, was determined by conformational analysis, employing a combination of data from NOESY-NMR spectroscopy, simulated annealing and free MD simulations. The simulation procedures were applied for both R- and S-configured α-hydroxy glycine of the skyllamycin structure and compared to the NOESY data. Both methods, simulated annealing and free MD simulations independently support S-configured α-hydroxy glycine thus enabling the assignment of all stereocenters in the structure of skyllamycin and devising the role of two-component flavin dependent monooxygenase (Sky39) as S-selective.

  18. Mutations in Smooth Muscle Alpha-Actin (ACTA2) Cause Coronary Artery Disease, Stroke, and Moyamoya Disease, Along with Thoracic Aortic Disease

    PubMed Central

    Guo, Dong-Chuan; Papke, Christina L.; Tran-Fadulu, Van; Regalado, Ellen S.; Avidan, Nili; Johnson, Ralph Jay; Kim, Dong H.; Pannu, Hariyadarshi; Willing, Marcia C.; Sparks, Elizabeth; Pyeritz, Reed E.; Singh, Michael N.; Dalman, Ronald L.; Grotta, James C.; Marian, Ali J.; Boerwinkle, Eric A.; Frazier, Lorraine Q.; LeMaire, Scott A.; Coselli, Joseph S.; Estrera, Anthony L.; Safi, Hazim J.; Veeraraghavan, Sudha; Muzny, Donna M.; Wheeler, David A.; Willerson, James T.; Yu, Robert K.; Shete, Sanjay S.; Scherer, Steven E.; Raman, C.S.; Buja, L. Maximilian; Milewicz, Dianna M.

    2009-01-01

    The vascular smooth muscle cell (SMC)-specific isoform of α-actin (ACTA2) is a major component of the contractile apparatus in SMCs located throughout the arterial system. Heterozygous ACTA2 mutations cause familial thoracic aortic aneurysms and dissections (TAAD), but only half of mutation carriers have aortic disease. Linkage analysis and association studies of individuals in 20 families with ACTA2 mutations indicate that mutation carriers can have a diversity of vascular diseases, including premature onset of coronary artery disease (CAD) and premature ischemic strokes (including Moyamoya disease [MMD]), as well as previously defined TAAD. Sequencing of DNA from patients with nonfamilial TAAD and from premature-onset CAD patients independently identified ACTA2 mutations in these patients and premature onset strokes in family members with ACTA2 mutations. Vascular pathology and analysis of explanted SMCs and myofibroblasts from patients harboring ACTA2 suggested that increased proliferation of SMCs contributed to occlusive diseases. These results indicate that heterozygous ACTA2 mutations predispose patients to a variety of diffuse and diverse vascular diseases, including TAAD, premature CAD, ischemic strokes, and MMD. These data demonstrate that diffuse vascular diseases resulting from either occluded or enlarged arteries can be caused by mutations in a single gene and have direct implications for clinical management and research on familial vascular diseases. PMID:19409525

  19. Vinculin Proteolysis Unmasks an ActA Homolog for Actin-based Shigella Motility

    PubMed Central

    Laine, Roney O.; Zeile, William; Kang, Fan; Purich, Daniel L.; Southwick, Frederick S.

    1997-01-01

    To generate the forces needed for motility, the plasma membranes of nonmuscle cells adopt an activated state that dynamically reorganizes the actin cytoskeleton. By usurping components from focal contacts and the actin cytoskeleton, the intracellular pathogens Shigella flexneri and Listeria monocytogenes use molecular mimicry to create their own actin-based motors. We raised an antibody (designated FS-1) against the FEFPPPPTDE sequence of Listeria ActA, and this antibody: (a) localized at the trailing end of motile intracellular Shigella, (b) inhibited intracellular locomotion upon microinjection of Shigella-infected cells, and (c) cross-reacted with the proteolytically derived 90-kD human vinculin head fragment that contains the Vinc-1 oligoproline sequence, PDFPPPPPDL. Antibody FS-1 reacted only weakly with full-length vinculin, suggesting that the Vinc-1 sequence in full-length vinculin may be masked by its tail region and that this sequence is unmasked by proteolysis. Immunofluoresence staining with a monoclonal antibody against the head region of vinculin (Vin 11-5) localized to the back of motile bacteria (an identical staining pattern observed with the anti-ActA FS-1 antibody), indicating that motile bacteria attract a form of vinculin containing an unmasked Vinc-1 oligoproline sequence. Microinjection of submicromolar concentrations of a synthetic Vinc-1 peptide arrested Shigella intracellular motility, underscoring the functional importance of this sequence. Western blots revealed that Shigella infection induces vinculin proteolysis in PtK2 cells and generates p90 head fragment over the same 1–3 h time frame when intracellular bacteria move within the host cell cytoplasm. We also discovered that microinjected p90, but not full-length vinculin, accelerates rates of pathogen motility by a factor of 3 ± 0.4 in Shigella-infected PtK2 cells. These experiments suggest that vinculin p90 is a rate-limiting component in actin-based Shigella motility, and that

  20. BOOK REVIEW: Astronomie von Olbers bis Schwarzschild. Nationale Entwicklungen und internationale Beziehungen im 19. Jahrhundert (Acta Historica Astronomiae Vol. 16)

    NASA Astrophysics Data System (ADS)

    Sterken, C.; Dick, W. R.; Hamel, J.

    2002-12-01

    The 14th volume of the Acta Historica Astronomiae is the Proceedings of a Colloquium International Relationships in Astronomy (in German) organised by the History of Astronomy Section of the Astronomische Gesellschaft held on September 18 in Lilienthal, Germany. The book contains 13 articles on astronomical topics covering the 19th and 20th centuries. The first paper is by Guenther Oestmann and deals with contemporary assessments of Johann Hieronymus Schroeter's (1745-1816) astronomical works and with later judgements of the scientific importance and significance of his observations as seen by astronomers and historians. This report is complemented by a second article on Schroeter's 25-ft reflector in Lilienthal near Bremen. To this end, author Felix Luehning has constructed a scale model of the telescope, and shows how the building of a model brings a deeper understanding of function and handling of this instrument. This brings us to a third paper on telescope building in Lilienthal: Hans-Joachim Leue describes the cooperation of Johann Hieronymus Schroeter and Johann Gottlieb Schrader in developing a white reflecting metal alloy for use as telescope mirror. The fourth article, by Klaus Schillinger, describes on the basis of archival documents the aquisition history of the Herschel telescopes, including telescope quality check, repair and building. Memorial sites referring to Wilhelm Olbers, Johann Hieronymus Schroeter, Friedrich Wilhelm Bessel and Carl Friedrich Gauss are described by Arno Langkavel in two walks outlined in the very last paper of this book. Peter Brosche, in the fifth paper, discusses the rediscovery of Ceres in December1801, a discovery that was the result of the combined efforts of a theoretician (Gauss) and an observer (Zach). Juergen Hamel's paper is based on previously unused archival sources and discusses the outstanding role played by H. C. Schumacher (1780-1850, editor of the Astronomische Nachrichten) in the communication between

  1. Book Review: Beitraege zur Astronomiegeschichte, Band 5 (Acta Historica Astronomiae Vol. 15)

    NASA Astrophysics Data System (ADS)

    Duerbeck, H. W.; Dick, W. R.; Hamel, J.

    2002-12-01

    The 15th volume of the Acta Historica Astronomiae is at the same time the fifth collection of essays on the history of astronomy (Beitraege zur Astronomiegeschichte, Band 5), edited by the historians of astronomy W.R. Dick (Potsdam) and J. Hamel (Berlin). Besides a few short notices and book reviews, the book contains 11 major articles, which deal with astronomical topics covering the time from the 16th to the 20th centuries. The first article, on the analysis and interpretation of historical horoscopes as a source of the history of science, is based on the inaugural lecture of its author, Guenther Oestmann. After a general introduction, which deals with the principles of horoscope making, the author discusses the horoscope of Count Heinrich Ranzau (1526-1598), the Danish governor of Schleswig-Holstein, who was a friend of Tycho Brahe. Oestmann shows that the astronomical-mathematical basis of such a horoscope can be reconstructed and interpreted. However, it is hardly possible to gain an insight in the process how the interpretation of a horoscope was done in detail. The second and third articles, by Franz Daxecker, deal with Athanasius Kircher and Christoph Scheiner, two catholic astronomers of the 17th century. Kircher's Organum Mathematicum is a calculating device that can be used in the fields of arithmetic, geometry, chronology, astronomy, astrology and others. The author provides extracts of the description of the Organum taken from a book by Caspar Schott, which deal with chronology and astronomy. A photograph of the Organum indicates that this tool consists of a set of tables glued on wooden or cardboard, but details of its contents and applications remain pretty obscure for the reader - a few elaborated examples would have been helpful. The second paper deals with the life of Christoph Scheiner SJ, the co-discoverer of sunspots (next to Galileo), after leaving Rome in 1633 - the year of the Galileo trial. Scheiner spent his later years in the Austrian and

  2. Fetal akinesia caused by a novel actin filament aggregate myopathy skeletal muscle actin gene (ACTA1) mutation.

    PubMed

    Stenzel, Werner; Prokop, Stefan; Kress, Wolfram; Huppmann, Stephanie; Loui, Andrea; Sarioglu, Nanette M E; Laing, Nigel G; Sparrow, John C; Heppner, Frank L; Goebel, Hans H

    2010-08-01

    We report a female newborn, diagnosed with fetal akinesia in utero, who died one hour after birth. Post-mortem muscle biopsy demonstrated actin-filament myopathy based on immunolabelling for sarcomeric actin, and large areas of filaments, without rod formation, ultrastructurally. Analysis of DNA extracted from the muscle disclosed a novel de novo heterozygous c.44G>A, GGC>GAC, 'p.Gly15Asp' mutation in the ACTA1 gene. Analysis of the location of the mutated amino-acid in the actin molecule suggests the mutation most likely causes abnormal nucleotide binding, and consequent pathological actin polymerization. This case emphasizes the association of fetal akinesia with actin-filament myopathy.

  3. Twenty Years of Society of Medical Informatics of B&H and the Journal Acta Informatica Medica

    PubMed Central

    Masic, Izet

    2012-01-01

    In 2012, Health/Medical informatics profession celebrates five jubilees in Bosnia and Herzegovina: a) Thirty five years from the introduction of the first automatic manipulation of data; b) Twenty five years from establishing Society for Medical Informatics BiH; c) Twenty years from establishing scientific and professional journal of the Society for Medical Informatics of Bosnia and Herzegovina „Acta Informatica Medica“; d) Twenty years from establishing first Cathdra for Medical Informatics on biomedical faculties in Bosnia and Herzegovina and e) Ten years from the introduction of “Distance learning” in medical curriculum. All of the five mentioned activities in the area of Medical informatics had special importance and gave appropriate contribution in the development of Health/Medical informatics in Bosnia And Herzegovina. PMID:23322947

  4. Twenty years of society of medical informatics of b&h and the journal acta informatica medica.

    PubMed

    Masic, Izet

    2012-03-01

    In 2012, Health/Medical informatics profession celebrates five jubilees in Bosnia and Herzegovina: a) Thirty five years from the introduction of the first automatic manipulation of data; b) Twenty five years from establishing Society for Medical Informatics BiH; c) Twenty years from establishing scientific and professional journal of the Society for Medical Informatics of Bosnia and Herzegovina "Acta Informatica Medica"; d) Twenty years from establishing first Cathdra for Medical Informatics on biomedical faculties in Bosnia and Herzegovina and e) Ten years from the introduction of "Distance learning" in medical curriculum. All of the five mentioned activities in the area of Medical informatics had special importance and gave appropriate contribution in the development of Health/Medical informatics in Bosnia And Herzegovina.

  5. Application of Patterson-function direct methods to materials characterization.

    PubMed

    Rius, Jordi

    2014-09-01

    The aim of this article is a general description of the so-called Patterson-function direct methods (PFDM), from their origin to their present state. It covers a 20-year period of methodological contributions to crystal structure solution, most of them published in Acta Crystallographica Section A. The common feature of these variants of direct methods is the introduction of the experimental intensities in the form of the Fourier coefficients of origin-free Patterson-type functions, which allows the active use of both strong and weak reflections. The different optimization algorithms are discussed and their performances compared. This review focuses not only on those PFDM applications related to powder diffraction data but also on some recent results obtained with electron diffraction tomography data.

  6. Application of Patterson-function direct methods to materials characterization

    PubMed Central

    Rius, Jordi

    2014-01-01

    The aim of this article is a general description of the so-called Patterson-function direct methods (PFDM), from their origin to their present state. It covers a 20-year period of methodological contributions to crystal structure solution, most of them published in Acta Crystallographica Section A. The common feature of these variants of direct methods is the introduction of the experimental intensities in the form of the Fourier coefficients of origin-free Patterson-type functions, which allows the active use of both strong and weak reflections. The different optimization algorithms are discussed and their performances compared. This review focuses not only on those PFDM applications related to powder diffraction data but also on some recent results obtained with electron diffraction tomography data. PMID:25295171

  7. Coverage of Acta Dermatovenerologica Alpina, Pannonica et Adriatica in Elsevier's CiteScore index: a new tool for measuring the citation impact of academic journals.

    PubMed

    Poljak, Mario

    2017-03-01

    In December 2016, Elsevier launched a new tool that helps measure the citation impact of academic journals, called the CiteScore index. The CiteScore index values for 2015 confirmed the status of Acta Dermatovenerologica Alpina, Pannonica et Adriatica (Acta Dermatovenerol APA) as the leading journal in dermatology and sexually transmitted infections in the region. Sixty-five articles published in Acta Dermatovenerol APA from 2012 to 2014 received a total of 77 citations in 2015, resulting in a CiteScore index value of 1.18 for the journal. More than half of the articles published from 2012 to 2014 received at least one citation in 2015. Acta Dermatovenerol APA performed well in all three categories listed because it is ranked 384th out of 1,549 journals in the category General Medicine (75th percentile), 53rd out of 122 journals in the category Dermatology (56th percentile), and 142nd out of 246 journals in the category Infectious Diseases (42nd percentile).

  8. Streptomyces rochei ACTA1551, an Indigenous Greek Isolate Studied as a Potential Biocontrol Agent against Fusarium oxysporum f.sp. lycopersici

    PubMed Central

    Kanini, Grammatiki S.; Katsifas, Efstathios A.; Savvides, Alexandros L.; Karagouni, Amalia D.

    2013-01-01

    Many studies have shown that several Greek ecosystems inhabit very interesting bacteria with biotechnological properties. Therefore Streptomyces isolates from diverse Greek habitats were selected for their antifungal activity against the common phytopathogenic fungus Fusarium oxysporum. The isolate encoded ACTA1551, member of Streptomyces genus, could strongly suppress the fungal growth when examined in antagonistic bioassays in vitro. The isolate was found phylogenetically relative to Streptomyces rochei after analyzing its 16S rDNA sequence. The influence of different environmental conditions, such as medium composition, temperature, and pH on the expression of the antifungal activity was thoroughly examined. Streptomyces rochei ACTA1551 was able to protect tomato seeds from F. oxysporum infection in vivo while it was shown to promote the growth of tomato plants when the pathogen was absent. In an initial effort towards the elucidation of the biochemical and physiological nature of ACTA1551 antifungal activity, extracts from solid streptomycete cultures under antagonistic or/and not antagonistic conditions were concentrated and fractionated. The metabolites involved in the antagonistic action of the isolate showed to be more than one and produced independently of the presence of the pathogen. The above observations could support the application of Streptomyces rochei ACTA1551 as biocontrol agent against F. oxysporum. PMID:23762841

  9. The beginnings of Acta Neurochirurgica and the work of Fritz Loew, chief editor from 1958 - 1997. An historical vignette.

    PubMed

    Reulen, Hans-Jürgen; Collmann, Hartmut

    2012-07-01

    Acta Neurochirurgica was founded in 1950, in the difficult time after World War II, by Mario Milletti (Bologna) and Wolfram Sorgo (Innsbruck), and published by Springer press, Vienna. From the beginning the new journal was conceived as an international journal with an impressive list of outstanding neurosurgeons in the editorial board. Only a few years later the issues appeared at irregular intervals due to individual problems of both editors. Wilhelm Tönnis took the initiative to keep the journal alive, when he asked-in consent with Springer press-his staff member Fritz Loew to continue the editorial work and to assemble a new prestigious editorial board. Loew succeeded with both tasks and remained editor-in-chief for nearly 38 years. Initially, all papers were published in the native languages of the authors: English, French, German, Italian and Spanish. With ongoing time the journal accepted manuscripts in English only. The slow progress of this process exemplifies the slow integration of the European countries. In 1971, at the founding meeting of the European Association of Neurosurgical Societies (EANS) in Prague, Acta Neurochirurgica became the official organ of the EANS. Right from the beginning of Acta Neurochirurgica, Supplement volumes were added. Also, the book series Advances and Technical Standards in Neurosurgery is an offspring of Acta Neurochirurgica. Acta Neurochirurgica has become one of the most important neurosurgical journals worldwide. This historical sketch is based on an interview with Fritz Loew, now 91 years old, to which data from the available literature and the Archives of German Neurosurgery, as well as personal information by several colleagues were added.

  10. Genetic subtyping of Listeria monocytogenes via multiple-locus sequence typing using iap, sigB and actA

    PubMed Central

    YOSHIKAWA, Yuko; OCHIAI, Yoshitsugu; MOCHIZUKI, Mariko; FUJITA, Osamu; TAKANO, Takashi; HONDO, Ryo; UEDA, Fukiko

    2016-01-01

    Pulse field gel electrophoresis (PFGE) is widely used for listeriosis surveillance. Although this technique is effective for epidemiology, the data among laboratories are inconsistent. We previously reported a method for Listeria monocytogenes subtyping combined with sequence analysis of partial iap and whole genome restriction fragment length polymorphism (RFLP) using XbaI, ClaI (BanIII) and PstI. However, distinguishing subtypes was challenging, because the output comprised complicated fragment patterns. In this study, we aimed to establish a simple genotyping method that does not depend on visual observation, rather it focuses on multi-locus sequence typing (MLST) using three genes, iap, sigB and actA. Sixty-eight strains of L. monocytogenes including EGD-e as a reference strain were investigated to ensure consistency with previous data on the genetic characterization. All strains were grouped into 29 types by both analyses. Although there are some differences in classification, major clades included the same strains. Simpson’s indices of diversity (SID) by MLST and iap-RFLP-based typing were 0.967 (95% confidence interval [CI]: 0.955/0.978) and 0.967 (95% CI: 0.955/0.979), respectively. The discriminatory power of both methods can be considered almost identical. Compared with the results of 38 selected strains, the strains within the MLST clusters in this study coincided with those obtained using PFGE. Thus, the MLST strategy could help differentiate among L. monocytogenes isolates during epidemiological studies. PMID:27725353

  11. Comment on “Chen et al., Fabrication and photovoltaic conversion enhancement…”, Electrochimica Acta, 2014

    NASA Astrophysics Data System (ADS)

    Valentic, Lara; Gorji, Nima E.

    2015-09-01

    In a recent article, Chen et al. [Electrochimica Acta, 2014, 130: 279] presented their fabrication and characterization results on a graphene/n-Si solar cell where the Au nanoparticles were inserted in graphene to increase its optical and electrical properties. The higher efficiency of the device was attributed to increased conductivity of graphene after doping with Au nanoparticles. However, the knowledge in the field of Schottky diode solar cells relates this to increased band bending at the junction. Also, to explain the instability behaviour, they concluded that the growth of silicon oxide on the Si surface or oxygen adsorption on the window layer resulted in the device performance increasing initially and decreasing in the end. However, this instability seems to be due to variation in series resistance reduced at the beginning because of slightly lowered Fermi level and increased at the end by the self-compensation by deep in-diffusion of Au nanoparticles into n-Si layer. We also propose that inserting a very thin p-type layer at the junction will enhance the carrier collection and performance of this device.

  12. Vascular disease-causing mutation R258C in ACTA2 disrupts actin dynamics and interaction with myosin

    PubMed Central

    Lu, Hailong; Fagnant, Patricia M.; Bookwalter, Carol S.; Joel, Peteranne; Trybus, Kathleen M.

    2015-01-01

    Point mutations in vascular smooth muscle α-actin (SM α-actin), encoded by the gene ACTA2, are the most prevalent cause of familial thoracic aortic aneurysms and dissections (TAAD). Here, we provide the first molecular characterization, to our knowledge, of the effect of the R258C mutation in SM α-actin, expressed with the baculovirus system. Smooth muscles are unique in that force generation requires both interaction of stable actin filaments with myosin and polymerization of actin in the subcortical region. Both aspects of R258C function therefore need investigation. Total internal reflection fluorescence (TIRF) microscopy was used to quantify the growth of single actin filaments as a function of time. R258C filaments are less stable than WT and more susceptible to severing by cofilin. Smooth muscle tropomyosin offers little protection from cofilin cleavage, unlike its effect on WT actin. Unexpectedly, profilin binds tighter to the R258C monomer, which will increase the pool of globular actin (G-actin). In an in vitro motility assay, smooth muscle myosin moves R258C filaments more slowly than WT, and the slowing is exacerbated by smooth muscle tropomyosin. Under loaded conditions, small ensembles of myosin are unable to produce force on R258C actin-tropomyosin filaments, suggesting that tropomyosin occupies an inhibitory position on actin. Many of the observed defects cannot be explained by a direct interaction with the mutated residue, and thus the mutation allosterically affects multiple regions of the monomer. Our results align with the hypothesis that defective contractile function contributes to the pathogenesis of TAAD. PMID:26153420

  13. Acta Armamentarii (Selected Articles),

    DTIC Science & Technology

    1982-12-01

    method is not appropriate in engineering technology. In 1968, A.N. Krayko, V.K. Starkov and L.Ye. Sternin (2] used the supposition of the one-dimensional...Equation (23) is written as the general form ~- G GA_ * dx -~& AA 4 .) 2 1W G,, +2’, 4 XpACP rym In the Equation 10 2vv, p2K-! PVV.-i-UtV’n,, +V j K Yay...Lag Loss", Marble, F.E. AIAA J., Vol. 1, No. 12, 1963. 14 [2] A.N. Krayko, L.E. Sternin, V.K. Starkov , "bo±urion or one- dimensional approximation of a

  14. Acta Aerodynamica Sinica,

    DTIC Science & Technology

    1986-11-03

    r &t ar + rx Re -1 ar r ((vur) + 3t) O a~ p ~~ (u 4) r aX 2 -T...radius of curvature of the surface and R is the gas constant. For the dust (a,u , r ) +t--(,ur. (a,u,/h) ’) P + V , , + a uv, F,±L - &I +a"v - ’ R "h - IC...h,~h Here, r is the dust particle concentration. The mutual interaction force is F..Ua_____ T, Tm where Tm=4d2 p Re , Re=av(Up-U)2+(Vp-v)2 d P P

  15. Acta Armamentarii (Selected Articles).

    DTIC Science & Technology

    1986-07-08

    the position of the change point can be determined. This is very helpful in understanding the reason for unsteady burning. Therefore, this is superior...properties of CIDP propellant have been published. Domestically, there were attempts to measure the dynamic mechanical properties of solid propellants with...these three propellants are rather large. Besides the different formulas and composite concentrations, the main reason is that they have different

  16. A rebuttal to "A comment to 'Normalization of urinary pteridines by urine specific gravity for early cancer detection' [Clin. Chim. Acta 435 (2014) 42-47]".

    PubMed

    Ma, Yinfa; Burton, Casey; Shi, Honglan

    2015-01-01

    We really appreciate the comments from Drs. Reibnegger and Fuchs regarding our recent publication "Normalization of urinary pteridines by urine specific gravity for early cancer detection [Clin. Chim. Acta 435 (2014) 42-47]". In their letter, Drs. Reibnegger and Fuchs identify several potential concerns regarding our recent publication [1] that evaluated the normalization performance of urine specific gravity (USG) and urinary creatinine with respect to the diagnostic properties of selected pteridines in discerning aggressive and benign breast cancers. Their letter not only provides unique insights that are both relevant and helpful to many researchers engaging in similar studies, but also provides a wonderful opportunity for us to address these potential concerns that may also be shared by other readers. We addressed all of the comments by Drs. Reibnegger and Fuchs in this letter.

  17. Thin Sections

    PubMed Central

    Peachey, Lee D.

    1958-01-01

    Knowledge of the thickness of sections is important for proper interpretation of electron micrographs. Therefore, the thicknesses of sections of n-butyl methacrylate polymer were determined by ellipsometry, and correlated with the color shown in reflected light. The results are: gray, thinner than 60 mµ; silver, 60 to 90 mµ; gold, 90 to 150 mµ; purple, 150 to 190 mµ; blue, 190 to 240 mµ; green, 240 to 280 mµ; and yellow, 280 to 320 mµ. These results agree well with optical theory and with previous published data for thin films. Sections, after cutting, are 30 to 40 per cent shorter than the face of the block from which they were cut. Only a small improvement results from allowing the sections to remain in the collecting trough at room temperature. Heating above room temperature, however, reduces this shortening, with a corresponding improvement in dimensions and spatial relationships in the sections. When the thickness of the section is considered in interpreting electron micrographs instead of considering the section to be two-dimensional, a more accurate interpretation is possible. The consideration of electron micrographs as arising from projections of many profiles from throughout the whole thickness of the section explains the apparent lack of continuity often observed in serial sections. It is believed that serial sections are actually continuous, but that the change in size of structure through the thickness of one section and the consideration of only the largest profile shown in the micrograph can account for the lack of continuity previously observed. PMID:13549493

  18. Cesarean Sections

    MedlinePlus

    ... the uterus itself. This incision can also be vertical or horizontal. Doctors usually use a horizontal incision ... especially if the incision on the uterus was vertical rather than horizontal. A C-section can also ...

  19. Golden Sections

    ERIC Educational Resources Information Center

    Stuart, Stephen N.

    2006-01-01

    In this article, the author states that architects, musicians and other thoughtful people have, since the time of Pythagoras, been fascinated by various harmonious proportions. One, is the visual harmony attributed to Euclid, called "the golden section". He explores this concept in geometries of one, two and three dimensions. He added, that in…

  20. Acta Mechanica Sinica (Selected Articles).

    DTIC Science & Technology

    1981-09-15

    Hodgkings have all tried to calculate equation (7.1) with non-steady state method. For reference, see [1, 17, 18]. They call this the dynamic...Pe,,.yu (9*16). Sci,’ua Sinea (1977), 287- 304 .- 19 J ,a.-,eieKKa*. 0. A.. MaTOMaTI4e.K11e u(ipocu ,tIHa,,K)I a3KO Nt aeiolk Nw.KrA.ocT.. l:i0IAr

  1. Acta Aeronautica et Astronautica Sinica,

    DTIC Science & Technology

    1983-07-28

    displacement of the origin in1] the various directions, and da.. = cdP . Figure l(c) shows13 Jj* the model [7) obtained by modifying the moving hardening...1 -. 𔃼 1sinl[ QQ(, - ,) + ,¢+2i.,.. - -) Q ( ) + 4,++ 24.)J The constant vector v can be determined from x (tf ) = 0. Sx ,+x 2 ,-1 o )+ F(-(X39-)e

  2. Acta Aeronautica et Astronautica Sinica,

    DTIC Science & Technology

    1982-10-14

    3 400 Fig.2 Gand specimas - 1--plate; 2--washer; 3--screw head; 4-- crack warning transducer The Ko,* at stress concentration point in the structure...628 office 1975 [4] R. E. Peterson, Design Stress Concentrating Coefficient, China Industrial Publication Co. 1965. 66 I- THE CRACK -FREE LIFE...this large scale structural component was carried out using these two spectra. The stress spectrum was obtained by directly measuring at the cracked f

  3. Acta Aeronautica et Astronautica Sinica.

    DTIC Science & Technology

    1981-12-29

    SPECIMENS 68 WITH SINGLE EDGE NOTCH Liu Ligeng, Chen Xianxi and Cai Qigong (Central Iron and Steel Research Institute) ON THE DESIGN OF TRANSONIC TURBINE...et al, Mechanism of Overload Effect on Fatigue Crack Propagation in Aluminum Alloy. Eng. Fract. Mech. 1978 No. 2. (13) Chen Hu, Cai Qigong et al...this paper. 67b J-INTEGRAL EXPERIMENTAL CALIBRATION OF SHEET SPECIMENS WITH SINGLE EDGE NOTCH Lui Ligeng, Chen Xianxi and Cai Qigong (Central Iron and

  4. Acta Aeronautica et Astronautica Sinica.

    DTIC Science & Technology

    1987-04-07

    technology. Recently the design of aircraft structure has already been developed into the stages of safety lifetime and damage tolerance. It is required to...but also influenced by the interior structures and the fatigue damages produced in manufacture and application. Iri i Ino’., although some models...downward wing. Special attention should be paid to the joint design of ,)f nomposite materials. An inadequate joint design will lead to early joint damage

  5. Acta Optica Sinica (Selected Articles),

    DTIC Science & Technology

    1986-04-04

    Selected Articles) C= Approved for public release; LL 4..::.: .... y ,, .,, FTD- ID(RS)T- 1089 -85 O"V%r. - HUMAN TRANSLATION FTD-ID(RS)T- 1089 -85 4 April...OPINION OF THE FOREIGN TECHNOLOGY DIVISION WPAFB. OHIO FTo- ID(RS)T- 1089 -85 Date 4 April 19 86 GRAPHICS DISCLAIMER All figures, graphics, tables

  6. Definite Project Report for Section 14. Emergency Streambank Protection, Sangamon River Sewage Treatment Facility, Riverton, Illinois. Revision.

    DTIC Science & Technology

    1987-12-01

    solution under the authority of Section 14 of the 1946 Flood Control Act,&s amended. The proposal for emergency streambank protection presented in...the authority of Section 14 of the 1946 Flood Control Actas amended. The Rock Island District, by letter dated December 29, 1986,inforeed the village...for this report is provided under Se:tion 14 of the 1946 Flood Control Act,approved 24 July 1946(33 U.S.C. 701 R),as amended by the Water Resources

  7. Floor Plans: Section "AA", Section "BB"; Floor Framing Plans: Section ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Floor Plans: Section "A-A", Section "B-B"; Floor Framing Plans: Section "A-A", Section "B-B" - Fort Washington, Fort Washington Light, Northeast side of Potomac River at Fort Washington Park, Fort Washington, Prince George's County, MD

  8. Absolute-structure reports.

    PubMed

    Flack, Howard D

    2013-08-01

    All the 139 noncentrosymmetric crystal structures published in Acta Crystallographica Section C between January 2011 and November 2012 inclusive have been used as the basis of a detailed study of the reporting of absolute structure. These structure determinations cover a wide range of space groups, chemical composition and resonant-scattering contribution. Defining A and D as the average and difference of the intensities of Friedel opposites, their level of fit has been examined using 2AD and selected-D plots. It was found, regardless of the expected resonant-scattering contribution to Friedel opposites, that the Friedel-difference intensities are often dominated by random uncertainty and systematic error. An analysis of data collection strategy is provided. It is found that crystal-structure determinations resulting in a Flack parameter close to 0.5 may not necessarily be from crystals twinned by inversion. Friedifstat is shown to be a robust estimator of the resonant-scattering contribution to Friedel opposites, very little affected by the particular space group of a structure nor by the occupation of special positions. There is considerable confusion in the text of papers presenting achiral noncentrosymmetric crystal structures. Recommendations are provided for the optimal way of treating noncentrosymmetric crystal structures for which the experimenter has no interest in determining the absolute structure.

  9. Corrigendum to "Equilibrium magnesium isotope fractionation between aqueous Mg2+ and carbonate minerals: Insights from path integral molecular dynamics" [Geochim. Cosmochim. Acta 163 (2015) 126-139

    NASA Astrophysics Data System (ADS)

    Pinilla, Carlos; Blanchard, Marc; Balan, Etienne; Natarajan, Suresh K.; Vuilleumier, Rodolphe; Mauri, Francesco

    2015-10-01

    The theoretical 26Mg/24Mg β-factor of aqueous Mg2+ of Schauble (2011) has been reported with an error in Pinilla et al. (2015). The corresponding value in Table 7 is incorrect and should read 25.5‰ at 298 K. In Section 3.6 (page 133), one sentence is affected and should be rephrased as: "It is noteworthy that the estimate of the Mg(aq)β-factor from a set of salts containing the Mg(H20)62+ complex leads to a value ∼2‰ higher than the other estimates at 298 K." Finally, the curves in Fig. 8 corresponding to the calculations of Schauble (2011) have been corrected in the figure below.

  10. Tiny tweaks, big changes: An alternative strategy to empower ethical culture of human research in anesthesia (A Taiwan Acta Anesthesiologica Taiwanica-Ethics Review Task Force Report).

    PubMed

    Luk, Hsiang-Ning; Ennever, John F; Day, Yuan-Ji; Wong, Chih-Shung; Sun, Wei-Zen

    2015-03-01

    For this guidance article, the Ethics Review Task Force (ERTF) of the Journal reviewed and discussed the ethics issues related to publication of human research in the field of anesthesia. ERTF first introduced international ethics principles and minimal requirements of reporting of ethics practices, followed by discussing the universal problems of publication ethics. ERTF then compared the accountability and methodology of several medical journals in assuring authors' ethics compliance. Using the Taiwan Institutional Review Board system as an example, ERTF expressed the importance of institutional review board registration and accreditation to assure human participant protection. ERTF presented four major human research misconducts in the field of anesthesia in recent years. ERTF finally proposed a flow-chart to guide journal peer reviewers and editors in ethics review during the editorial process in publishing. Examples of template languages applied in the Ethics statement section in the manuscript are expected to strengthen the ethics compliance of the authors and to set an ethical culture for all the stakeholders involved in human research.

  11. Delivery by Cesarean Section

    MedlinePlus

    ... Español Text Size Email Print Share Delivery by Cesarean Section Page Content Article Body More than one mother in three gives birth by Cesarean section in the United States (it is also called ...

  12. Ureilite Thin Section Preparation

    NASA Technical Reports Server (NTRS)

    Harrington, R.; Righter, K.

    2014-01-01

    Preparing thin and thick sections of ureilite type meteorites is a challenge that can confound even the most experienced section preparer. A common characteristic of these samples is the presence of carbon phases, particularly nanodiamonds, in the matrix along silicate grain boundaries, fractures, and cleavage plains [1]. The extreme hardness of the nanodiamonds presents a challenge to the section preparer in the form of high surface relief on the section. This hard material also causes considerable wear and tear on equipment and materials that are used for making the sections. These issues will be discussed and potentially helpful measures will be presented.

  13. Proposed SPR Section Bylaws

    NASA Astrophysics Data System (ADS)

    Russell, C. T.

    Each of the sections of AGU has been requested by Council to adopt a set of bylaws. The Union has provided a set of model bylaws that each section can adapt to its own particular needs. At t h e request of Bob Helliwell, I have taken the model bylaws and attempted to alter them to better reflect the needs of the SPR Section. I n doing so, I have made several proposed changes in t h e operation of the SPR Section. The first one to note is that the draft bylaws call for only three sections and not four. This is to create three more equal subdivisions in SPR. Even with the SC and SS section programs combined, as SS and SC have been at recent meetings, they have not sustained a full program during the meeting. The other important change is a limitation on the term of the secretaries. This is not any reflection on the past or present performance of our secretaries but rather an acknowledgment of the strong influence that they wield on t h e intellectual directions of the section and the feeling that this influence should be shared among many individuals over the course of time. The section does not lack talented individuals who would be good secretaries.

  14. Jet inclusive cross sections

    SciTech Connect

    Del Duca, V.

    1992-11-01

    Minijet production in jet inclusive cross sections at hadron colliders, with large rapidity intervals between the tagged jets, is evaluated by using the BFKL pomeron. We describe the jet inclusive cross section for an arbitrary number of tagged jets, and show that it behaves like a system of coupled pomerons.

  15. Thermal neutron capture cross sections of the potassium isotopes

    NASA Astrophysics Data System (ADS)

    Firestone, R. B.; Krtička, M.; Révay, Zs.; Szentmiklosi, L.; Belgya, T.

    2013-02-01

    Precise thermal neutron capture γ-ray cross sections σγ for 39,40,41K were measured on a natural potassium target with the guided neutron beam at the Budapest Reactor. The cross sections were internally standardized using a stoichiometric KCl target with well-known 35Cl(n,γ) γ-ray cross sections [Révay and Molnár, Radiochimica ActaRAACAP0033-823010.1524/ract.91.6.361.20027 91, 361 (2003); Molnár, Révay, and Belgya, Nucl. Instrum. Meth. Phys. Res. BNIMBEU0168-583X10.1016/S0168-583X(03)01529-5 213, 32 (2004)]. These data were combined with γ-ray intensities from von Egidy [von Egidy, Daniel, Hungerford, Schmidt, Lieb, Krusche, Kerr, Barreau, Borner, Brissot , J. Phys. G. Nucl. Phys.JPHGBM0305-461610.1088/0305-4616/10/2/013 10, 221 (1984)] and Krusche [Krusche, Lieb, Ziegler, Daniel, von Egidy, Rascher, Barreau, Borner, and Warner, Nucl. Phys. ANUPABL0375-947410.1016/0375-9474(84)90506-2 417, 231 (1984); Krusche, Winter, Lieb, Hungerford, Schmidt, von Egidy, Scheerer, Kerr, and Borner, Nucl. Phys. ANUPABL0375-947410.1016/0375-9474(85)90429-4 439, 219 (1985)] to generate nearly complete capture γ-ray level schemes. Total radiative neutron cross sections were deduced from the total γ-ray cross section feeding the ground state, σ0=Σσγ(GS) after correction for unobserved statistical γ-ray feeding from levels near the neutron capture energy. The corrections were performed with Monte Carlo simulations of the potassium thermal neutron capture decay schemes using the computer code dicebox where the simulated populations of low-lying levels are normalized to the measured cross section depopulating those levels. Comparisons of the simulated and experimental level feeding intensities have led to proposed new spins and parities for selected levels in the potassium isotopes where direct reactions are not a significant contribution. We determined the total radiative neutron cross sections σ0(39K)=2.28±0.04 b, σ0(40K)=90±7 b, and σ0(41K)=1.62±0.03 b from the

  16. Post caesarean section delivery.

    PubMed

    Bolaji, I I; Meehan, F P

    1993-10-29

    Recent clinical attention has focused upon the rising rate of caesarean sections being performed and whether patients with a previous caesarean section should be allowed a vaginal delivery. In this paper, the worldwide trend of caesarean section and the role of trial of scar following single and multiple caesarean surgery is reviewed. The role of oxytocin and regional epidural analgesia is evaluated as well as perinatal and maternal mortality. On the basis of the available data, there is no justification for the current clinical practice of almost 99% prevalence of elective repeat caesarean section in some hospitals in the North America. Oxytocin and epidural analgesia, when carefully monitored, are safe and reasonable in these patients. Watchful waiting has always been an essential virtue in obstetric management and should not be replaced by hopeful expectancy. This aspect of the art of obstetrics would appear to require rejuvenation if we are to stem the rising tide of caesarean sections.

  17. Acta Aeronautica et Astronautica Sinica (Selected Articles),

    DTIC Science & Technology

    1986-05-29

    method was developed in our country using the technique with generating lines and center lines and has been applied in various aricraft design. However...public release; Distribution unlimited. - , . 16 06 *11 Zo ! 4F , FTD- ID(RS)T-1265-85 HUMAN TRANSLATION FTD-ID(RS)T-1265-85 29 May 1986 MICROFICHE...4 4 . ,, .ii Development in Vortex Motion Research /1 Liu Mouji and Su Wenhan (Beijing Institute of Aeronautics and Astronautics) Abstract This paper

  18. Acta Aeronautica et Astronautica Sinica (Selected Articles),

    DTIC Science & Technology

    1986-05-09

    N.oreover, according to K.C. Wang’s analogue senaration criter- ion , under certain conditions, the two-dimensional unsteady flow can -- 5-I be...that the seoaration line is a convergent asymp- tote of the limiting streamlines in the vicinity of the separation line. In this sen:se, therefore

  19. Acta Aeronautica et Astronautica Sinica (Selected Articles),

    DTIC Science & Technology

    1984-11-27

    Coefficients-of the Stability Augmentation System in Order to Improve Riding Qualities, by Gao Han 13 The Compilation and Application of a State-Time...34~%*** ... . Selection of the Longitudinal Feedback Coefficients /18 of the Stability Augmentation System in Order to Improve Riding Qualities...Northwestern Polytechnical University Gao Hao ABSTRACT The longitudinal feedback coefficients of a stability augmentation system (SAS) for a sample

  20. Acta Aeronautica et Astronautica Sinica (Selected Articles),

    DTIC Science & Technology

    2014-09-26

    located at the wing tip and under the wing using flexible hangers. Different span and chord positions as well as hanger pitches , yawing and sway flexibility...causing the bending of the wing surface and pitching of the external store, and (3) flutter causing the swaying of the external store and yawing. 27...almost bent by the pitch frequency of the external store *when the pitch rigidity of the external store is low. In this * case, wing bending and twisting

  1. Acta Aeronautica et Astronautica Sinica (Selected Articles)

    DTIC Science & Technology

    1988-02-18

    tables, equations, etc. merged into this tra!,slation were extracted from the best quality copy available. I I iii ti New Content of Tactical-Technical...and Astronautics SubnmitteJ December 16, 1986 Abstrac t "This paper demionstrates the importance of stealth pane- tration ability for future military...niques, etc. The emphasis of this paper is placed on the anal- ysis of the new content of tactical-technical requirements for military aircrafts in

  2. Acta Aeronautica et Astronautica Sinica (Selected Articles),

    DTIC Science & Technology

    2014-09-26

    enthalpy drops can be increased in a single-stage type turbine by con- trolling vortices at the exhaust of the gas turbine . The number or stages is...are used in experiments and their configurations are relatively simple . Based on the existing data. the general rules of wing-tip mounted winglet...in a NH-2 low-speed wind tunnel at Nanjing Institute of Aeronautics and Astronautics. The wind speed of experiments was 40 m/s. The main wing model

  3. Acta Aeronautica et Astronautica Sinicia (Selected Articles),

    DTIC Science & Technology

    1984-01-04

    target group is I g, C ( ),(:,)..(t,), X’(0) 0 g,<x,(I,)x(,) x,(,)) o The... target groups . II. The Zero Miss Minimum Energy Guidance Law The target group is x I (tf) =0 The other parameters of the terminal are free. Based on...guidance law of the various different systems [3]. III. Guidance Laws of the Target Group as a Zero Control Intercept Curved Surface When

  4. Section 508 Resources

    EPA Pesticide Factsheets

    Find details about pertinent laws, regulations, and policies, including acquisition regulations; best practices guidance; and training at Section508.gov. Learn about the U.S. Access Board, which reviews and updates 508 standards.

  5. Section 508 Standards Resources

    EPA Pesticide Factsheets

    Learn which software applications, operating systems, web-based applications, and other electronic and information technology (EIT) products are covered by Section 508 of the Rehabilitation Act; and resources for making sure your EIT products are compliant

  6. Learn About Section 508

    EPA Pesticide Factsheets

    Find out about EPA's commitment to making its websites and other electronic and information technology (EIT) products accessible, learn what Section 508 of the Rehabilitation Act covers and why, and how to make your EIT 508 compliant.

  7. C-section - slideshow

    MedlinePlus

    ... ency/presentations/100191.htm C-section - series—Normal anatomy To use the sharing features on this page, ... Bethesda, MD 20894 U.S. Department of Health and Human Services National Institutes of Health Page last updated: ...

  8. What is Section 508?

    EPA Pesticide Factsheets

    This section of the Rehabilitation Act required federal agencies to develop, procure, maintain, and use electronic and information technology (EIT) that is accessible to people with disabilities, whether or not they work for the government.

  9. Utility straight sections

    SciTech Connect

    Leemann, B.; Peggs, S.; Peterson, J.

    1985-10-01

    Utility straight sections are insertions in the SSC lattice to provide relatively free space to facilitate various beam manipulations. These uses include beam-abort, injection (and conceivably ejection), space for the rf system, and collimation. A typical utility straight section is 1500 meters in overall length (ranging from 500 to 1200 meters). It has zero dispersion and high values of the beta functions. The betatron phase shift across the insertion is about 90{degrees} in each plane.

  10. [Anesthesia for cesarean section].

    PubMed

    Eldor, J; Guedj, P; Lavie, A

    1992-11-15

    Of 684 parturients who underwent cesarean section between July 1985-August 1990, 371 (54.2%) were given epidural anesthesia; 50 (7.3%) required general anesthesia after a failed attempt at epidural anesthesia; and 5 (0.7%) underwent inadvertent spinal anesthesia because of dural penetration by the epidural needle. In 258 (37.7%) general anesthesia was decided on before operation. The intentional avoidance of spinal anesthesia for cesarean section in this university hospital is criticized.

  11. Cross Sections: No. 1 Hold section at Fr 24 Looking ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Cross Sections: No. 1 Hold section at Fr 24 Looking Fwd, No 1 Hold Section at Fr 28 Looking Aft, No 2 Hold Section at Fr 48 Looking Aft, No 3 Hold Section at Fr 70 Looking Aft, No 4 Hold Section at Fr 90 Looking Aft - General John Pope, Suisun Bay Reserve Fleet, Benicia, Solano County, CA

  12. Roof Plans: Section "CC", Roof Plan; Roof Framing Plans: Section ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Roof Plans: Section "C-C", Roof Plan; Roof Framing Plans: Section "C-C", Section "D-D"; Roof Framing Sections: Cross Section "G-G", Cross Section "H-H" - Fort Washington, Fort Washington Light, Northeast side of Potomac River at Fort Washington Park, Fort Washington, Prince George's County, MD

  13. The Golden Section.

    ERIC Educational Resources Information Center

    Runion, Garth E.

    The Golden Section, also known as the "Golden Mean" and the "Divine Proportion," is a ratio found in art and nature that has mathematical properties. This book explores these geometric and algebraic properties in a variety of activities. Construction problems, designs using the pentagon and pentagram, and opportunities to work…

  14. Solanum section Petota

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Solanum section Petota includes the cultivated potato and its approximately 110 wild species relatives. This monographic treatment covers the 18 wild potato species that occur in Argentina. It includes keys to these 18 species, full synonymies with lectotypifications when necessary, descriptions, st...

  15. The Golden Section Hypothesis

    ERIC Educational Resources Information Center

    Benjafield, J.; Adams-Webber, J.

    1976-01-01

    The golden section is a proportion the aesthetic properties of which have been extolled since antiquity. The data from five experiments in which subjects made dichotomous judgements of acquaintances on bipolar dimensions (e.g. pleasant-unpleasant) were reported. (Editor)

  16. Cross Sections: No 6 Hold Section at Fr 178 Looking ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Cross Sections: No 6 Hold Section at Fr 178 Looking Fwd, No 7 Hold Section at No 154 Looking Fwd, No 7 Hold Section at Fr 195 Looking Fwd Showing Trans 194, No 7 Hold Section at Fr 198 Looking Fwd - General John Pope, Suisun Bay Reserve Fleet, Benicia, Solano County, CA

  17. AGU Hydrology Section

    NASA Astrophysics Data System (ADS)

    1984-04-01

    The Executive Committee of the AGU Hydrology Section met in regular session at 4:00 P.M. on Thursday, December 8, 1983, in Room 378 of the Cathedral Hill Hotel, San Francisco, Calif. Seven board members were present with section president, Peter Eagleson, presiding.A total of 18 sessions were presented in San Francisco, and all were well attended, as was reported by program chairman Dennis Lettenmaier. Added to the regular sessions of General Hydrology, General Ground-water Hydrology, and Sediment Transport were the following special sessions: Glacier Ocean Interaction, presider Edward Josberger; Orinoco and the Amazon, presider Edward Andrews; Transport and Geochemical Interactions in Stream Water, presider F. E. Bencola; Instream Flow Requirements for Fish, presider Brian W. Mar; Multivariate Modeling of Hydrologic and Other Geophysical Time Series, presiders Jose D. Salas and David R. Dawdy; Optimization Techniques for Managing Ground Water and Stream Aquifer Systems, presider Steve Gorelick; Treatment of Evapotranspiration Soil Moisture Evolution and Aquifer Recharge in Watershed Models, presiders Arlen D. Feldman and Hubert J. Morel-Seytoux; Statistical Procedures for Estimating of Flood Risk at Gauged Sites, presider J. R. Stedinger; and Searching for More Physically Based Extreme Value Distributions in Hydrology, presider Juan B. Valdes. The session on Glacier Ocean Interaction received the most publicity, with numerous accounts of some of the presentations appearing in the newspaper. One of the pleasant surprises of the meetings was the high attendance at the special sessions on Optimization Techniques for Managing Ground Water and Stream Aquifer Systems and Multivariate Modeling of Hydrologic and Other Geophysical Time Series. Both sessions were highly interdisciplinary, attracting numerous scientists from other sections of AGU.

  18. A new Lunar Section publication

    NASA Astrophysics Data System (ADS)

    Leatherbarrow, W.

    2011-10-01

    In 2011 July the Lunar Section published the first issue of a new annual bulletin, 'The Moon: Notes and Records of the BAA Lunar Section'as a replacement for the previous Section bulletin 'The New Moon'

  19. Radiation and photochemistry section

    SciTech Connect

    Not Available

    1991-01-01

    The highlights of this past year in the Radiation and Photochemistry Section at Argonne include: (1) picosecond optical studies of radical cations and excited states produced in hydrocarbon radiolysis provided the first kinetic measurements of ion transformation and production of triplet and singlet excited states by ion recombination. (2) studies of radical cations of alkyl-substituted amines and sulfides provided insights into ion-molecule reactions of radical cations in the condensed phase. (3) studies of the behavior of strained alkane radical cations, such as cubane {sup +}{center dot}, revealed new rearrangements and remarkable, medium-dependent differences in their structures. (4) H{center dot}atom reactions yielding e{sub aq}{sup {minus}} provided the first reliable measurements of hydrated-electron enthalpy and entropy and forced the revision of some previous thinking about the driving force in {sub aq}{sup {minus}} reactions.

  20. Section AA Pre2004 Fire, Section AA 2009, Section AA, South ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Section A-A Pre-2004 Fire, Section A-A 2009, Section A-A, South Elevation - Boston & Maine Railroad, Berlin Branch Bridge #148.81, Formerly spanning Moose Brook at former Boston & Maine Railroad, Gorham, Coos County, NH

  1. Intervention for Postpartum Infections Following Caesarean Section

    ClinicalTrials.gov

    2016-10-14

    Surgical Wound Infection; Infection; Cesarean Section; Cesarean Section; Dehiscence; Complications; Cesarean Section; Complications; Cesarean Section, Wound, Dehiscence; Wound; Rupture, Surgery, Cesarean Section

  2. SECTION O, SHOWING FLAT MARKERS, WITH SECTIONS K AND L ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    SECTION O, SHOWING FLAT MARKERS, WITH SECTIONS K AND L IN BACKGROUND. VIEW TO SOUTH. - Rock Island National Cemetery, Rock Island Arsenal, 0.25 mile north of southern tip of Rock Island, Rock Island, Rock Island County, IL

  3. 13. VIEW WEST, STREET LEVEL, OF EAST MAIN SECTION SECTION, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. VIEW WEST, STREET LEVEL, OF EAST MAIN SECTION SECTION, SHOWING HISTORICAL MARKER THAT READS 'Y-BRIDGE - 1902 - WORLD FAMOUS PART OF THE OLD NATIONAL ROAD' - Y-Bridge, Spanning confluence of Muskingham & Licking Rivers, Zanesville, Muskingum County, OH

  4. Industrial Section Convenor's Report

    NASA Astrophysics Data System (ADS)

    Barone, M.; Riboni, P.

    2002-11-01

    recently into the areas of interest of our community (Hourdakis and Intrasoft) and the examples of an Industry historically committed to a strong R&D effort (SAES-Getters). Finally a case of involvement of industry in a "Big Science" project (CMS) completed the palette of the contributions to this Industry Section. The full set of transparencies of the lectures, are filed and made available at the conference site: .

  5. 4. Interior detail original 1906 section and middle 1911 section. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Interior detail original 1906 section and middle 1911 section. Middle section beyond arched doorway. View to east. - Duluth & Iron Range Rail Road Company Shops, Oil House, Southwest of downtown Two Harbors, northwest of Agate Bay, Two Harbors, Lake County, MN

  6. Cross Section; Half Longitudinal Section Showing Middle Wall Reinforced with ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Cross Section; Half Longitudinal Section Showing Middle Wall Reinforced with Arch; Part Long Section Showing Inside of External Side Wall; East Entrance; Part Side South External; Part Reflected Plan of Soffite of Floor; Part Reflected Plan of Soffite of Roof - Blenheim Covered Bridge, Spanning Schoharie River, North Blenheim, Schoharie County, NY

  7. Controlling Works, Section AA at Bear Trap Dam, Section BB ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Controlling Works, Section A-A at Bear Trap Dam, Section B-B at Bear-Trap Dam, Section C-C at Sluice Gate - Chicago Sanitary and Ship Canal, Lockport Controlling Works, Illinois Waterway River Mile 293.2, Lockport, Will County, IL

  8. New Arsenic Cross Section Calculations

    SciTech Connect

    Kawano, Toshihiko

    2015-03-04

    This report presents calculations for the new arsenic cross section. Cross sections for 73,74,75 As above the resonance range were calculated with a newly developed Hauser-Feshbach code, CoH3.

  9. Activities: Sectioning a Regular Tetrahedron.

    ERIC Educational Resources Information Center

    Maletsky, Evan M., Ed.; And Others

    1980-01-01

    Worksheets are provided for use by students in grades 8 and above when sectioning a tetrahedron. Lesson objectives include the discovery of generalizations regarding the cross-sections of a tetrahedron. (MK)

  10. 46 CFR Section 1 - Purpose.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 8 2011-10-01 2011-10-01 false Purpose. Section 1 Section 1 Shipping MARITIME ADMINISTRATION, DEPARTMENT OF TRANSPORTATION B-CONTROL AND UTILIZATION OF PORTS FEDERAL PORT CONTROLLERS Section 1 Purpose. This part prescribes the standard form of the service agreement to be entered into by...

  11. 23. VIEW OF SECTION DRAWINGS. THE SECTION LINES CUT THE ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    23. VIEW OF SECTION DRAWINGS. THE SECTION LINES CUT THE BUILDING EAST-WEST. THE ORIGINAL DRAWING HAS BEEN ARCHIVED ON MICROFILM. THE DRAWING WAS REPRODUCED AT THE BEST QUALITY POSSIBLE. LETTERS AND NUMBERS IN THE CIRCLES INDICATE FOOTER AND/OR COLUMN LOCATIONS. - Rocky Flats Plant, Uranium Rolling & Forming Operations, Southeast section of plant, southeast quadrant of intersection of Central Avenue & Eighth Street, Golden, Jefferson County, CO

  12. Physical sequelae of caesarean section.

    PubMed

    Jackson, N; Paterson-Brown, S

    2001-02-01

    The complications and recovery from caesarean section are dominated by the medical condition of the woman pre-operatively. Evidence regarding risks directly attributable to the caesarean section is scanty, and often derived from obstetric practice that differs from the current day. Mortality associated with the procedure is anything up to five times that for vaginal delivery, with emergency caesarean section associated with almost twice the risk of elective procedures. Data regarding placenta praevia and placenta praevia-accreta come from population series where antibiotics were not routinely used for caesarean section, but there is no doubt that previous caesarean section increases the risk of both. Antibiotic and thromboprophylaxis at the time of caesarean section decrease morbidity in the index pregnancy, but can also reasonably be expected to reduce future pregnancy complications.

  13. TSCA Section 21 Petition for Section 8(a) Partial Exemption

    EPA Pesticide Factsheets

    This petition requests EPA to amend the TSCA Section 8 Chemical Data Reporting (CDR) partially exempted chemical list set forth in the U.S. Environmental Protection Agency’s (EPA) regulations at 40 C.F.R. Section 711.6(b)(1).

  14. 38. SECTIONS OF ACCESS CORRIDOR, INCLUDES SECTION SHOWING ARRANGEMENT OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    38. SECTIONS OF ACCESS CORRIDOR, INCLUDES SECTION SHOWING ARRANGEMENT OF NAVY GUN BARRELS. INEEL DRAWING NUMBER 200-0633-00-287-106454. FLUOR NUMBER 5775-CPP-633-P-59. - Idaho National Engineering Laboratory, Old Waste Calcining Facility, Scoville, Butte County, ID

  15. Director Circles of Conic Sections

    ERIC Educational Resources Information Center

    Srinivasan, V. K.

    2002-01-01

    Given a conic section, the locus of a moving point in the plane of the conic section such that the two tangent lines drawn to the conic section from the moving point are all mutually perpendicular is a curve. In the case of an ellipse and hyperbola this curve is a circle referred to as the director circle. In the case of the parabola this curve…

  16. Radar cross section of insects

    NASA Astrophysics Data System (ADS)

    Riley, J. R.

    1985-02-01

    X-band measurements of radar cross section as a function of the angle between insect body axis and the plane of polarization are presented. A finding of particular interest is that in larger insects, maximum cross section occurs when the E-vector is perpendicular to the body axis. A new range of measurements on small insects (aphids, and planthoppers) is also described, and a comprehensive summary of insect cross-section data at X-band is given.

  17. Section 608 Rule Presentation Slides

    EPA Pesticide Factsheets

    This document presents slides informing the public about updates to the Section 608 concerning appliance disposal, refrigerant reclamation, technician certification, refrigerant sales restriction, recordkeeping, and repairing refrigerant leaks.

  18. Hydrology Section Executive Committee Minutes

    NASA Astrophysics Data System (ADS)

    Johnson, A. Ivan

    The Hydrology Section Executive Committee (EC) convened at 8:20 A.M. on May 28, 1985, in Room 311 of the Convention Center in Baltimore, Md. The meeting was chaired by Hydrology Section President R. Allan Freeze. Section President-Elect Marshall Moss kept the minutes in the absence of the Section Secretary Thomas Maddock III. Also in attendance were William Back, Rafael Bras, Stephen Burges, Jerry Cohon, Ron Cummings, David Dawdy, Jacques Delleur, Leonard Konikow, Jurate Landwehr, Fred Molz, Don Nielsen, Joyce Peters, Karen Prestegaard, Tom Schmugge, Waldo Smith, Jery Stedinger, and Eric Wood.

  19. XCOM: Photon Cross Sections Database

    National Institute of Standards and Technology Data Gateway

    SRD 8 XCOM: Photon Cross Sections Database (Web, free access)   A web database is provided which can be used to calculate photon cross sections for scattering, photoelectric absorption and pair production, as well as total attenuation coefficients, for any element, compound or mixture (Z <= 100) at energies from 1 keV to 100 GeV.

  20. Evolution & the Cesarean Section Rate

    ERIC Educational Resources Information Center

    Walsh, Joseph A.

    2008-01-01

    "Nothing in biology makes sense except in the light of evolution." This was the title of an essay by geneticist Theodosius Dobzhansky writing in 1973. Many causes have been given for the increased Cesarean section rate in developed countries, but biologic evolution has not been one of them. The C-section rate will continue to rise, because the…

  1. 23. VIEW OF SECTION DRAWINGS. THE SECTION LINES FOR AA ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    23. VIEW OF SECTION DRAWINGS. THE SECTION LINES FOR A-A AND C-C CUT THE BUILDING EAST-WEST; SECTION LINE B-B CUTS THE BUILDING NORTH-SOUTH. THE ORIGINAL DRAWING HAS BEEN ARCHIVED ON MICROFILM. THE DRAWING WAS REPRODUCED AT THE BEST QUALITY POSSIBLE. LETTERS AND NUMBERS IN THE CIRCLES INDICATE FOOTER AND/OR COLUMN LOCATIONS. - Rocky Flats Plant, Non-Nuclear Production Facility, South of Cottonwood Avenue, west of Seventh Avenue & east of Building 460, Golden, Jefferson County, CO

  2. Infrared Cross-Sections of Nitro-Derivative Vapors: New Spectroscopic Signatures of Explosive Taggants and Degradation Products

    NASA Astrophysics Data System (ADS)

    Cuisset, Arnaud; Mouret, Gaël; Pirali, Olivier; Gruet, Sébastien; Piau, Gérard Pascal; Fournier, Gilles

    2015-06-01

    Classical explosives such as RDX or TNT exhibit a very low vapor pressure at room temperature and their detection in air requires very sensitive techniques with levels usually better than 1 ppb. To overcome this difficulty, it is not the explosive itself which is detected, but another compound more volatile present in the explosive. This volatile compound can exist naturally in the explosive due to the manufacturing process. For example, in the case of DiNitroToluene (DNT), the molecule is a degradation product of TNT and is required for its manufacture. Ortho-Mononitrotoluene (2-NT) and para-mononitrotoluene (4-NT) can be also used as detection taggants for explosive detection. In this study, using the exceptional properties of the SOLEIL synchrotron source, and adapted multipass-cells, gas phase Far-IR rovibrational spectra of different isomers of mononitrotoluene and dinitrotoluene have been investigated. Room temperature Far-IR cross-sections of the 3 isomer forms of mononitrotoluene have been determined for the lowest frequency vibrational bands located below 700 wn. Cross sections and their temperature dependences have been also measured in the Mid-IR using conventional FTIR spectroscopy probing the nitro-derivatives vapors in a heated multipass-cell. J. C. Oxley, J. L. Smith, W. Luo, J. Brady, Prop. Explos. Pyrotec. 34 (2009) 539-543 A. Cuisset, S. Gruet, O. Pirali, G. Mouret, Spectrochimica Acta Part A, 132 (2014) 838-845.

  3. Curved conveyor section guide assembly

    SciTech Connect

    Truszczinski, H.

    1981-02-03

    A guide assembly for a curved conveyor section of a scraperchain conveyor guides the scraper assembly from a first straight conveyor portion round the curved conveyor section to a second straight conveyor portion. This guiding is accomplished by a pair of independently rotatable pulley wheels. A further pair of independently rotatable pulley wheels are provided to guide the drive chain of a plough round the curved conveyor section. This enables the plough to be driven to and fro along the first straight conveyor portion by a drive station attached to the second straight conveyor portion adjacent to the guide assembly.

  4. Frequent Questions about Section 508

    EPA Pesticide Factsheets

    Reasonable Accommodation addresses the individual's needs in the workplace, while the Rehabilitation Act Section 508 requires accessibility for all people to electronic and information technology (EIT) equipment and tools to access information or work.

  5. Cutting thin sections of bone

    NASA Technical Reports Server (NTRS)

    Ashley, W. W.

    1972-01-01

    Medical equipment for obtaining repetitive planoparallel sections of bone to study healing of bone structure under high gravity stress is described. Device consists of modified saw with diamond cutting edges. Construction of device and manner of use are explained.

  6. Having a C-Section

    MedlinePlus

    ... may have bad reactions to certain medicines, including anesthesia you get during surgery. Anesthesia is medicine that makes you numb so you ... health problems Your baby may be affected by anesthesia you get during your c-section. This may ...

  7. Hydrology Section Executive Committee Minutes

    NASA Astrophysics Data System (ADS)

    Mercer, James W.

    The AGU Hydrology Section Executive Committee Meeting was called to order at approximately 4 P.M. on Monday, May 18, 1987, by Hydrology Section President Marshall Moss. In attendance were President-Elect George Pinder, Secretary Jim Mercer, Ron Cummings, Helen Joyce Peters, Peter Eagleson, Stephen Burges, Jim Wallis, Jurate Landwehr, Don Nielson, Ken Bencala, Pete Loucks, Jery Stedinger, Dennis Lettenmaier, Lenny Konikow, Ken Potter, John Wilson, Ivan Johnson, and Judy Holoviak.

  8. Corrigendum to ‘Evidence for shock heating and constraints on Martian surface temperatures revealed by 40Ar/39Ar thermochronometry of Martian meteorites’ [Geochim. Cosmochim. Acta (2010) 6900–6920

    DOE PAGES

    Cassata, William S.; Shuster, David L.; Renne, Paul R.; ...

    2014-10-23

    Here, the authors regret they have discovered errors in Eq. (3) and in a spreadsheet used to calculate cosmogenic exposure ages shown in Table 1. Eq. (3) is missing a term. The spreadsheet errors concerned an incorrect cell reference and application of Eq. (3). Correction of these errors results in ~15–20% changes to the exposure ages of all samples, minor (generally <0.2%) changes to the radioisotopic ages of some samples (those that entailed a correction for chlorine-derived 38Ar calculated based on the exposure age; see Section 3.3), and statistically insignificant changes to the inferred trapped components identified through isochron analyses.more » These modifications have no impact on the modeling, discussions, or conclusions in the paper, nor do the changes to radioisotopic ages exceed the 1 sigma uncertainties.« less

  9. Corrigendum to ‘Evidence for shock heating and constraints on Martian surface temperatures revealed by 40Ar/39Ar thermochronometry of Martian meteorites’ [Geochim. Cosmochim. Acta (2010) 6900–6920

    SciTech Connect

    Cassata, William S.; Shuster, David L.; Renne, Paul R.; Weiss, Benjamin P.

    2014-10-23

    Here, the authors regret they have discovered errors in Eq. (3) and in a spreadsheet used to calculate cosmogenic exposure ages shown in Table 1. Eq. (3) is missing a term. The spreadsheet errors concerned an incorrect cell reference and application of Eq. (3). Correction of these errors results in ~15–20% changes to the exposure ages of all samples, minor (generally <0.2%) changes to the radioisotopic ages of some samples (those that entailed a correction for chlorine-derived 38Ar calculated based on the exposure age; see Section 3.3), and statistically insignificant changes to the inferred trapped components identified through isochron analyses. These modifications have no impact on the modeling, discussions, or conclusions in the paper, nor do the changes to radioisotopic ages exceed the 1 sigma uncertainties.

  10. Corrigendum to 'Evidence for shock heating and constraints on Martian surface temperatures revealed by 40Ar/39Ar thermochronometry of Martian meteorites' [Geochim. Cosmochim. Acta (2010) 6900-6920

    NASA Astrophysics Data System (ADS)

    Cassata, William S.; Shuster, David L.; Renne, Paul R.; Weiss, Benjamin P.

    2015-01-01

    The authors regret they have discovered errors in Eq. (3) and in a spreadsheet used to calculate cosmogenic exposure ages shown in Table 1. Eq. (3) is missing a term. The spreadsheet errors concerned an incorrect cell reference and application of Eq. (3). Correction of these errors results in ∼15-20% changes to the exposure ages of all samples, minor (generally <0.2%) changes to the radioisotopic ages of some samples (those that entailed a correction for chlorine-derived 38Ar calculated based on the exposure age; see Section 3.3), and statistically insignificant changes to the inferred trapped components identified through isochron analyses. These modifications have no impact on the modeling, discussions, or conclusions in the paper, nor do the changes to radioisotopic ages exceed the 1 sigma uncertainties.

  11. [Cesarean section and eye disorders].

    PubMed

    Karska-Basta, Izabella; Tarasiewicz, Marta; Kubicka-Trząska, Agnieszka; Miniewicz, Joanna; Romanowska-Dixon, Bożena

    2016-01-01

    Recently, a growing tendency for cesarean birth has been noted both, in Poland and worldwide. Non-obstetric problems constitute a large part of indications for cesarean section. Many ophthalmologists and obstetricians still believe that high myopia, the presence of peripheral retinal degenerations, history of retinal detachment surgery, diabetic retinopathy, or glaucoma are indications for surgical termination of pregnancy. However, these recommendations are not evidence-based. The literature offers no proof that high myopia and previous retinal surgery increase the risk of retinal detachment during spontaneous vaginal delivery. There is only one indication for cesarean section in myopic patients, i.e. the presence of choroidal neovascularization, which can cause subretinal bleeding with acute visual loss. Prolonged and intensified Valsalva maneuver during labor in patients with an active proliferative diabetic retinopathy may be an indication for an elective cesarean section. Uterine contractions during the second stage of vaginal delivery lead to a marked elevation of intraocular pressure. Intraocular pressure fluctuations during the delivery may damage retinal ganglion cells, resulting in further progression of visual field. Thus, glaucoma associated with advanced visual field changes is the next ophthalmic indication for cesarean section. The report presents the current state of knowledge concerning the effect of pregnancy on pre-existing ocular disorders and the influence of physiological changes on the clinical course of these diseases during the stages of natural delivery. The authors discuss also the ophthalmic indications for cesarean section.

  12. Accurate Cross Sections for Microanalysis

    PubMed Central

    Rez, Peter

    2002-01-01

    To calculate the intensity of x-ray emission in electron beam microanalysis requires a knowledge of the energy distribution of the electrons in the solid, the energy variation of the ionization cross section of the relevant subshell, the fraction of ionizations events producing x rays of interest and the absorption coefficient of the x rays on the path to the detector. The theoretical predictions and experimental data available for ionization cross sections are limited mainly to K shells of a few elements. Results of systematic plane wave Born approximation calculations with exchange for K, L, and M shell ionization cross sections over the range of electron energies used in microanalysis are presented. Comparisons are made with experimental measurement for selected K shells and it is shown that the plane wave theory is not appropriate for overvoltages less than 2.5 V. PMID:27446747

  13. [Rapid frozen sections in neuropathology].

    PubMed

    Haybaeck, J; von Campe, G; Hainfellner, J A

    2012-09-01

    Neuropathological evaluation of frozen sections requires a) special expertise in neuropathological specimen assessment and neurooncology as well as b) a trustful and open communication culture with the neurosurgeons. In addition to frozen sections, cytological examinations of smear and touch preparations as supporting methods are available to reach a correct diagnosis: these additional methods should therefore be performed whenever possible. Besides evaluation of biopsy specimens, appraisal of resection specimens and resection margin controls are of high clinical relevance. In the case of diffusely infiltrating central nervous system (CNS) neoplasms, in particular gliomas, resection margin control is often not feasible in contrast to other types of solid tumor.

  14. Transition section for acoustic waveguides

    DOEpatents

    Karplus, H.H.B.

    1975-10-28

    A means of facilitating the transmission of acoustic waves with minimal reflection between two regions having different specific acoustic impedances is described comprising a region exhibiting a constant product of cross-sectional area and specific acoustic impedance at each cross-sectional plane along the axis of the transition region. A variety of structures that exhibit this feature is disclosed, the preferred embodiment comprising a nested structure of doubly reentrant cones. This structure is useful for monitoring the operation of nuclear reactors in which random acoustic signals are generated in the course of operation.

  15. A Special Section. College Periodicals.

    ERIC Educational Resources Information Center

    Currents, 1988

    1988-01-01

    Special section includes "True to Format," an editor's guide to periodicals (Robin Goldman); "The Move to Magazine," focusing on format (Patricia Ann LaSalle); "The Fast-paced Alternative," about timely tabloids (Janis D. Gleason, Lynn Donham); and also about tabloids, "Why Don't We Have a Magazine?" (Marsha…

  16. Neonatology and the caesarean section.

    PubMed

    Zanini, R; Minghetti, D

    2012-10-01

    The origins of the use of the Caesarean section date far back in human history. Traces of this procedure can be found in Greek mythology and in the history of Ancient Rome. Many documents about the history of religion make reference to a delivery from the abdomen.

  17. Special Section: Educating Elderly Caregivers.

    ERIC Educational Resources Information Center

    Epstein, Bernice A.; And Others

    1990-01-01

    Four articles in this special section report on (1) Arizona curriculum for home-based caregivers of the elderly in rural communities (Epstein, Koenig); (2) educational programs for nursing home caregivers (Marsden); (3) extension programs for helping low-income elderly with money management (Koonce); and (4) energy education for the elderly…

  18. Supersonic Wind Tunnel Test Section

    NASA Technical Reports Server (NTRS)

    1957-01-01

    8ft x 6ft Supersonic Wind Tunnel Test-Section showing changes made in Stainless Steel walls with 17 inch inlet model installation. The model is the ACN Nozzle model used for aircraft engines. The Supersonic Wind Tunnel is located in the Lewis Flight Propulsion Laboratory, now John H. Glenn Research Center

  19. Neutrino cross-sections: Experiments

    SciTech Connect

    Sánchez, F.

    2015-07-15

    Neutrino-nucleus cross-sections are as of today the main source of systematic errors for oscillation experiments together with neutrino flux uncertainties. Despite recent experimental and theoretical developments, future experiments require even higher precisions in their search of CP violation. We will review the experimental status and explore possible future developments required by next generation of experiments.

  20. Photoneutron cross sections for Au

    SciTech Connect

    Itoh, O.; Utsunomiya, H.; Akimune, H.; Yamagata, T.; Kondo, T.; Kamata, M.; Toyokawa, H.; Harada, H.; Kitatani, F.; Goko, S.; Nair, C.; Lui, Y.-W.

    2011-10-28

    Photoneutron cross sections were measured for Au in the entire energy range of the ({gamma},n) channel based on a direct neutron-counting technique with quasimonochromatic {gamma} rays produced in inverse Compton-scattering of laser photons with relativistic electrons. We present results of the measurement in comparison with the past data.

  1. Transverse section radionuclide scanning system

    DOEpatents

    Kuhl, David E.; Edwards, Roy Q.

    1976-01-01

    This invention provides a transverse section radionuclide scanning system for high-sensitivity quantification of brain radioactivity in cross-section picture format in order to permit accurate assessment of regional brain function localized in three-dimensions. High sensitivity crucially depends on overcoming the heretofore known raster type scanning, which requires back and forth detector movement involving dead-time or partial enclosure of the scan field. Accordingly, this invention provides a detector array having no back and forth movement by interlaced detectors that enclose the scan field and rotate as an integral unit around one axis of rotation in a slip ring that continuously transmits the detector data by means of laser emitting diodes, with the advantages that increased amounts of data can be continuously collected, processed and displayed with increased sensitivity according to a suitable computer program.

  2. Industry liaison section implementation plan

    NASA Technical Reports Server (NTRS)

    Lakowske, Stephen

    1990-01-01

    The Industry Liaison Section is a new function of the Army/NASA Aircrew-Aircraft Integration (AAAI) Program that is intended to bridge an existing gap between Government developers (including contractors) and outside organizations who are potential users of products and services developed by the AAAI Program. Currently in its sixth year, the Program is experiencing considerable pull from industry and other government organizations to disseminate products. Since the AAAI Program's charter is exploratory and research in nature, and satisfying proper dissemination requirements is in conflict with the rapid prototyping approach utilized by the design team, the AAAI Program has elected to create an Industry Liaison Section (ILS) to serve as the Program's technology transfer focal point. The process by which the ILS may be established, organized and managed is described, including the baseline organizational structure, duties, functions, authority, responsibilities, relations and policies and procedures relevant to the conduct of the ILS.

  3. Hydrology Section Executive Committee minutes

    NASA Astrophysics Data System (ADS)

    Mercer, James W.

    The AGU Hydrology Section Executive Committee Meeting was called to order at approximately 4 P.M. on Monday, December 8, 1986 by Marshall Moss. In attendance were George Pinder, Allan Freeze, Jim Mercer, Ron Cummings, Ken Bencala, Jim Wallis, Simon Ince, Jack Stone, Jeff Dozier, Don Nielson, Ivan Johnson, John Wilson, Helen Peters, Jurate Landwehr, Karen Prestegaard, Soroosh Sorooshian, Jery Stedinger, Peter Kitanidis, Rafael Bras, and Waldo Smith.

  4. Vacuum-assisted cesarean section

    PubMed Central

    McQuivey, Ross W; Block, Jon E

    2017-01-01

    There has been a dramatic rise in the frequency of cesarean sections, surpassing 30% of all deliveries in the US. This upsurge, coupled with a decreasing willingness to allow vaginal birth after cesarean section, has resulted in an expansion of the use of vacuum assistance to safely extract the fetal head. By avoiding the use of a delivering hand or forceps blade, the volume being delivered through the uterine incision can be decreased when the vacuum is used properly. Reducing uterine extensions with their associated complications (eg, excessive blood loss) in difficult cases is also a theoretical advantage of vacuum delivery. Maternal discomfort related to excessive fundal pressure may also be lessened. To minimize the risk of neonatal morbidity, proper cup placement over the “flexion point” remains essential to maintain vacuum integrity and reduce the chance of inadvertent detachment and uterine extensions. Based on the published literature and pragmatic clinical experience, utilization of the vacuum device is a safe and effective technique to assist delivery during cesarean section. PMID:28331371

  5. Taxonomy of Penicillium section Citrina

    PubMed Central

    Houbraken, J.; Frisvad, J.C.; Samson, R.A.

    2011-01-01

    Species of Penicillium section Citrina have a worldwide distribution and occur commonly in soils. The section is here delimited using a combination of phenotypic characters and sequences of the nuclear ribosomal RNA gene operon, including the internal transcribed spacer regions ITS1 and ITS2, the 5.8S nrDNA (ITS) and partial RPB2 sequences. Species assigned to section Citrina share the production of symmetrically biverticillate conidiophores, flask shaped phialides (7.0–9.0 μm long) and relatively small conidia (2.0–3.0 μm diam). Some species can produce greyish-brown coloured cleistothecia containing flanged ascospores. In the present study, more than 250 isolates presumably belonging to section Citrina were examined using a combined analysis of phenotypic and physiological characters, extrolite profiles and ITS, β-tubulin and/or calmodulin sequences. Section Citrina includes 39 species, and 17 of those are described here as new. The most important phenotypic characters for distinguishing species are growth rates and colony reverse colours on the agar media CYA, MEA and YES; shape, size and ornamentation of conidia and the production of sclerotia or cleistothecia. Temperature-growth profiles were made for all examined species and are a valuable character characters for species identification. Species centered around P. citrinum generally have a higher maximum growth temperature (33–36 °C) than species related to P. westlingii (27–33 °C). Extrolite patterns and partial calmodulin and β-tubulin sequences can be used for sequence based identification and resolved all species. In contrast, ITS sequences were less variable and only 55 % of the species could be unambiguously identified with this locus. Taxonomic novelties: Penicillium argentinense Houbraken, Frisvad & Samson, P. atrofulvum Houbraken, Frisvad & Samson, P. aurantiacobrunneum Houbraken, Frisvad & Samson, P. cairnsense Houbraken, Frisvad & Samson, P. christenseniae Houbraken, Frisvad & Samson

  6. Cross Sections for Planetary Escape

    NASA Astrophysics Data System (ADS)

    Tully, C.

    2001-05-01

    Energetic charged-particle bombardment, dissociative recombination and photodissociation processes produce energetic recoil atoms which heat the thermosphere and can lead to escape from a planet affecting the evolution of the atmosphere. In describing these processes by Monte Carlo methods, many of the critical cross sections are not available in the energy range of interest, a few eV to 1 keV. Here we present our recent results for elastic collision and collisional dissociation cross sections relevant to Titan, Triton, Europa and the terrestrial planets [1,2]. Elastic and diffusion cross sections were calculated using both quantum mechanical techniques and the semiclassical JWKB approximation for the collision of ground state oxygen atoms in the energy range 1-10eV [2]. This involved calculation of phase shifts for each of the 18 molecular energy states of O2 which separate to two ground state O atoms. For an O thermosphere the total elastic cross section is close to that typically assumed but the escape depths are shown to be larger than those typically used. Dissociation cross sections of N + N2 were calculated using a semiclassical method, in the energy range 0-30eV. This required treating the vibrational motion quantum mechanically while the rotational and the relative translational motion were treated classically. The evolution of the system was calculated by simultaneous propagation of the classical as well as the quantal degrees of freedom. The solution to the classical part was carried out by solving Hamilton equations of motion using an effective London-Eyring-Polanyi-Sato potential energy surface, calculated by Laganá et al [3]. Propagation of the quantal wavefunction was carried out by solving the time dependent Schrödinger equation using the split operator technique with the help of the fast fourier transform which was used to calculate the second derivatives arising from the kinetic energy operator. This work was supported by NASA's Planetary

  7. Two-section arctic drilling structure

    SciTech Connect

    Tiedemann, J.B.

    1984-01-10

    A lightweight drilling structure for use in offshore arctic waters comprising a lower frustoconical section and upper section wherein the lower section is towed to location, ballasted to sink in place on the sea floor and anchored in position by flooding the stability compartments. The upper section containing the drilling rig and equipment is then floated into place over the lower section, ballasted to rest on the lower section and the two sections sealed and fastened together. The assembled structure is firmly anchored in place by dewatering chambers located in the bottom of the lower section to create a suction between the bottom of the lower section and the ocean floor.

  8. Turbine airfoil having outboard and inboard sections

    SciTech Connect

    Mazzola, Stefan; Marra, John J

    2015-03-17

    A turbine airfoil usable in a turbine engine and formed from at least an outboard section and an inboard section such that an inner end of the outboard section is attached to an outer end of the inboard section. The outboard section may be configured to provide a tip having adequate thickness and may extend radially inward from the tip with a generally constant cross-sectional area. The inboard section may be configured with a tapered cross-sectional area to support the outboard section.

  9. Techniques for performing caesarean section.

    PubMed

    Hema, K R; Johanson, R

    2001-02-01

    In many countries caesarean section has become the mode of delivery in over a quarter of all births. Safety of the mother and cost are the two main areas of concern. Various studies on the techniques of performing a caesarean section have focused on reducing the operating time, blood loss, wound infection and cost. Given the fact that caesarean section is the most commonly performed operation in obstetrics, it is important that trainers and trainees are familiar with the basic surgical techniques and that best practice is followed. At the same time surgeons should take necessary precautions to reduce their risk of exposure to Hepatitis B and HIV. The skin incision and entry into abdominal cavity is best achieved by the modified Cohen's incision. The lower segment transverse uterine incision has stood the test of time over a period of 75 years and remains the best way to enter the uterus. Closure of the uterus in single layer appears to be acceptable, whenever technically possible. Placental delivery should be by controlled cord traction after spontaneous expulsion. Closure of the visceral and parietal layers of the peritoneum no longer seems to be necessary. Obliteration of space in the subcutaneous layer, either by suture or by suction, seems to reduce wound disruption. These issues are being considered in the CAESAR randomized controlled trial of surgical techniques currently underway in England.Prophylactic antibiotics are mandatory in preventing post-operative morbidity. Many of the above mentioned steps have been tested in randomized trials. Further studies are needed to examine a wide range of questions arising from this review, e.g. best position of the patient, the value of exteriorization of the uterus whilst repairing the uterus, and the use of agents to relax the uterus in difficult deliveries.

  10. 31 CFR 800.222 - Section 721.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Section 721. 800.222 Section 800.222 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF INVESTMENT... FOREIGN PERSONS Definitions § 800.222 Section 721. The term section 721 means section 721 of title VII...

  11. 31 CFR 800.222 - Section 721.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Section 721. 800.222 Section 800.222 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF INVESTMENT... FOREIGN PERSONS Definitions § 800.222 Section 721. The term section 721 means section 721 of title VII...

  12. Maternal outcomes of cesarean sections

    PubMed Central

    Aubrey-Bassler, Kris; Newbery, Sarah; Kelly, Len; Weaver, Bruce; Wilson, Scott

    2007-01-01

    OBJECTIVE To compare maternal outcomes of cesarean sections performed by GPs with the outcomes of those performed by specialists. DESIGN Retrospective, comorbidity-adjusted study. SETTING Mostly small isolated rural hospitals in Ontario, British Columbia, Alberta, and Saskatchewan compared with all levels of specialist obstetric programs offered in Canada. PARTICIPANTS Fifteen GPs with less than 1 year of surgical training who performed cesarean sections. METHOD Using data from the Canadian Institute for Health Information’s Discharge Abstracts Database for the years 1990 to 2001, we matched each of 1448 cesarean section cases managed by these GPs to 3 cases managed by specialists and looked for comorbidity. In total, we analyzed the outcomes of 5792 cesarean sections. MAIN OUTCOME MEASURES Composites of major morbidity possibly attributable to surgery:death, sepsis, cardiac arrest, shock, hypotension, ileus or bowel obstruction,major puerperal infection, septic or fat embolism, postpartum hemorrhage requiring hysterectomy, need for cardiopulmonary resuscitation, or another operation; and all major morbidity: major surgical morbidity, acute coronary syndrome, endocarditis, pulmonary edema, cerebrovascular disorder, pneumothorax, respiratory failure, amniotic fluid embolism, complications of anesthesia, deep vein thrombosis, pulmonary embolism, acute renal failure, and need for mechanical ventilation. RESULTS The rate of all major morbidity was higher among GPs’ patients than among specialists’ patients (3.1% vs 1.9%, odds ratio [OR] 1.6, 95% confidence interval [CI] 1.1 to2.3, P = .009) as was the rate of major surgical morbidity (2.5% vs 1.6%, OR 1.6, 95% CI 1.1 to 2.4, P = .024). Differences in major morbidity variables were not significant if major postpartum infection was excluded (all major morbidity 1.5% vs 1.1%, major surgical morbidity 1.0% vs 0.8%). Secondary outcomes included rate of transfer to acute care institutions (6.0% vs 1.5%, OR 4.6, 95% CI

  13. 14 CFR Section 2 - General Accounting Policies

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... General Accounting Provisions Section 2 General Accounting Policies ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false General Accounting Policies Section 2 Section 2 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION...

  14. To the Ocean Sciences section

    NASA Astrophysics Data System (ADS)

    Hickey, Barbara

    To maximize our ability to obtain recognition of Ocean Sciences Section members as Fellows of AGU while minimizing the associated workload, I have, in consultation with our executive committee, established an Ocean Sciences Fellows Committee chaired by the President-Elect to oversee and assist in the nomination process.The committee asks that anyone wanting to sponsor a nomination send a one-page proposal telling why an individual should be made a Fellow. Proposals will be reviewed by the commitee, and a number equal to 1 ½ to 2 times our nomination quota will be chosen for full presentation. Committee members will then work with nominators to select and contact seconders, while the nominator provides the required curriculum vitae and publication list. The committee will assist in any manner possible to insure that the files that go forward are both timely and well documented.

  15. The Court Interpreters Act--A Step towards Equal Justice.

    ERIC Educational Resources Information Center

    Barcelo, Cosme J., Jr.

    1979-01-01

    The Court Interpreters Act of 1978, signed by President Carter on October 29, 1978, establishes the right of any individual involved in federal proceedings to have a certified court interpreter if his/her communication or comprehension capabilities are inhibited because of a language barrier or a hearing or speech impairment. (NQ)

  16. 49 CFR 236.798 - Section, dead.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Section, dead. 236.798 Section 236.798 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Section, dead. A section of track, either within a track circuit or between two track circuits, the...

  17. 49 CFR 236.798 - Section, dead.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Section, dead. 236.798 Section 236.798 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Section, dead. A section of track, either within a track circuit or between two track circuits, the...

  18. 49 CFR 236.798 - Section, dead.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Section, dead. 236.798 Section 236.798 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Section, dead. A section of track, either within a track circuit or between two track circuits, the...

  19. 49 CFR 236.798 - Section, dead.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Section, dead. 236.798 Section 236.798 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Section, dead. A section of track, either within a track circuit or between two track circuits, the...

  20. 49 CFR 236.798 - Section, dead.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Section, dead. 236.798 Section 236.798 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Section, dead. A section of track, either within a track circuit or between two track circuits, the...

  1. 49 CFR 236.821 - Switch, sectionalizing.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Switch, sectionalizing. 236.821 Section 236.821 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Switch, sectionalizing. A switch for disconnecting a section of a power line from the source of energy....

  2. 49 CFR 236.821 - Switch, sectionalizing.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Switch, sectionalizing. 236.821 Section 236.821 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Switch, sectionalizing. A switch for disconnecting a section of a power line from the source of energy....

  3. 49 CFR 236.821 - Switch, sectionalizing.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Switch, sectionalizing. 236.821 Section 236.821 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Switch, sectionalizing. A switch for disconnecting a section of a power line from the source of energy....

  4. VBAC (Vaginal Birth After C-Section)

    MedlinePlus

    Tests and Procedures Vaginal birth after C-section (VBAC) By Mayo Clinic Staff If you've delivered a baby by C-section and ... between scheduling a repeat C-section or attempting vaginal birth after C-section (VBAC). For many women, ...

  5. 49 CFR 236.821 - Switch, sectionalizing.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Switch, sectionalizing. 236.821 Section 236.821 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Switch, sectionalizing. A switch for disconnecting a section of a power line from the source of energy....

  6. 49 CFR 236.821 - Switch, sectionalizing.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Switch, sectionalizing. 236.821 Section 236.821 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Switch, sectionalizing. A switch for disconnecting a section of a power line from the source of energy....

  7. 49 CFR 236.799 - Section, fouling.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Section, fouling. 236.799 Section 236.799 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Section, fouling. The section of track between the switch points and the clearance point in a turnout....

  8. 49 CFR 236.799 - Section, fouling.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Section, fouling. 236.799 Section 236.799 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION... Section, fouling. The section of track between the switch points and the clearance point in a turnout....

  9. [Fast neutron cross section measurements

    SciTech Connect

    Knoll, G.F.

    1992-10-26

    From its inception, the Nuclear Data Project at the University of Michigan has concentrated on two major objectives: (1) to carry out carefully controlled nuclear measurements of the highest possible reliability in support of the national nuclear data program, and (2) to provide an educational opportunity for students with interests in experimental nuclear science. The project has undergone a successful transition from a primary dependence on our photoneutron laboratory to one in which our current research is entirely based on a unique pulsed 14 MeV fast neutron facility. The new experimental facility is unique in its ability to provide nanosecond bursts of 14 MeV neutrons under conditions that are clean'' and as scatter-free as possible, and is the only one of its type currently in operation in the United States. It has been designed and put into operation primarily by graduate students, and has met or exceeded all of its important initial performance goals. We have reached the point of its routine operation, and most of the data are now in hand that will serve as the basis for the first two doctoral dissertations to be written by participating graduate students. Our initial results on double differential neutron cross sections will be presented at the May 1993 Fusion Reactor Technology Workshop. We are pleased to report that, after investing several years in equipment assembly and optimization, the project has now entered its data production'' phase.

  10. Introduction to Seamount Special Section

    NASA Astrophysics Data System (ADS)

    Watts, A. B.

    1984-12-01

    This special section is the outcome of a symposium held at the Lamont-Doherty Geological Observatory November 17-19, 1982, on the origin and evolution of seamounts. The topic for the symposium arose from the realization that although there is now a wealth of new ideas on the geology, geophysics, and geochemistry of the ocean floor, the study of seamounts has been relatively neglected despite their great importance to plate tectonics. One of the most interesting features of the ocean floor is the large number of small volcanoes or seamounts. Usually, these features are circular in plan view and have a sharp summit. There has been extensive debate in the literature about the significance of the different morphological types of seamounts. A traditional view has been that flattopped seamounts (e.g., guyots) formed as a result of subaerial erosion when the volcanoes were above sea level. Seamounts covered by fringing reefs or sediments (e.g., atolls), on the other hand, are believed to have formed when the original volcanic foundation subsided below sea level.

  11. Cesarean section: the pediatricians' views.

    PubMed

    Carrapato, Manuel R G; Ferreira, Ana M; Wataganara, Tuangsit

    2016-10-16

    Cesarean sections (CS) have greatly increased and many reasons are often evoked. Safer anesthetics and surgical procedures have rendered CS a popular choice for both professionals and mothers alike. CS on maternal request, for nonmedical reasons, is the subject of scientific, legal and ethical dispute. We shall address the CS issues, primarily, from the pediatrician's point of view. The immediate neonatal problems of the more mature neonate are well recognized. For preterm birth, contradictory results on mid- and long-term outcomes do not confirm the earlier reports on neonatal advantages of CS over vaginal delivery; therefore, their mode of delivery should be based on individual circumstances. The intestinal flora of neonates delivered by CS is often deprived of the normal colonization by maternal vulvovaginal and rectal flora. Whether this adverse microbiome will play a role in the late development of multiple morbidities in children and adults is an interesting possibility open to consideration. The consequences of unnecessary CS demands a reflection for all the involved parties and the decision to perform a CS shall, then, be based on the net clinical benefit to all: the mother, the child and the future adult.

  12. Generalized Mandelbrot rule for fractal sections

    NASA Astrophysics Data System (ADS)

    Meisel, L. V.

    1992-01-01

    Mandelbrot's rule for sections is generalized to apply to the Hentschel and Procaccia fractal dimension at arbitrary q and on arbitrary sections. It is shown that for almost all (n-m)-dimensional sections, Dn(q)=Dn-m(q)+m, where the Dr(q) are box-counting, Hentschel, and Procaccia generalized fractal dimensions of r-dimensional sections of homogeneous fractal point sets in Rn and Dn-m(q)>0. The rule applies for finite ``thickness'' sections as well as ``true'' sections and can be interpreted for inhomogenous fractal sets.

  13. Electron-Impact Ionization Cross Section Database

    National Institute of Standards and Technology Data Gateway

    SRD 107 Electron-Impact Ionization Cross Section Database (Web, free access)   This is a database primarily of total ionization cross sections of molecules by electron impact. The database also includes cross sections for a small number of atoms and energy distributions of ejected electrons for H, He, and H2. The cross sections were calculated using the Binary-Encounter-Bethe (BEB) model, which combines the Mott cross section with the high-incident energy behavior of the Bethe cross section. Selected experimental data are included.

  14. Section 4 User Guide – Primary Support

    EPA Pesticide Factsheets

    This document presents the user guide for the Office of Pollution Prevention and Toxics (OPPT) Section 4 application submission process. This document is the user guide for the Primary Support user of the Section 4 tool.

  15. Vaginal birth after C-section

    MedlinePlus

    ... this page: //medlineplus.gov/ency/patientinstructions/000589.htm Vaginal birth after C-section To use the sharing ... the same way again. Many women can have vaginal deliveries after having a C-section in the ...

  16. Guidance: CERCLA Section 106 Judicial Actions

    EPA Pesticide Factsheets

    This guidance provides criteria for consideration in selecting and initiating Section 106 judicial actions. The guidance also identifies and discusses issues that should be considered in preparation of a Section 106 referral.

  17. [Influence of Caesarean section on familial planning].

    PubMed

    Rosales Aujang, Enrique; Felguérez Flores, Jesús Alberto

    2009-12-01

    The Caesarean section is commonly related to the effects it produces in maternal and perinatal morbidity and mortality; however, little has been studied about the influence that C-Section exerts in familiar planning. This cross-sectional study analyzes the relationship between the rate of Caesarean section during 19 years and the rates of natality, of maternal mortality, and perinatal mortality, as well as the accepted contraceptive methods during such surgical procedure.

  18. Neutron cross sections: Book of curves

    SciTech Connect

    McLane, V.; Dunford, C.L.; Rose, P.F.

    1988-01-01

    Neuton Cross Sections: Book of Curves represents the fourth edition of what was previously known as BNL-325, Neutron Cross Sections, Volume 2, CURVES. Data is presented only for (i.e., intergrated) reaction cross sections (and related fission parameters) as a function of incident-neutron energy for the energy range 0.01 eV to 200 MeV. For the first time, isometric state production cross sections have been included. 11 refs., 4 figs.

  19. Photoproduction total cross section and shower development

    NASA Astrophysics Data System (ADS)

    Cornet, F.; García Canal, C. A.; Grau, A.; Pancheri, G.; Sciutto, S. J.

    2015-12-01

    The total photoproduction cross section at ultrahigh energies is obtained using a model based on QCD minijets and soft-gluon resummation and the ansatz that infrared gluons limit the rise of total cross sections. This cross section is introduced into the Monte Carlo system AIRES to simulate extended air showers initiated by cosmic ray photons. The impact of the new photoproduction cross section on common shower observables, especially those related to muon production, is compared with previous results.

  20. 46 CFR Section 1 - Books of account.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 8 2012-10-01 2012-10-01 false Books of account. Section 1 Section 1 Shipping MARITIME... TRANSACTIONS UNDER AGENCY AGREEMENTS Accounts Section 1 Books of account. A separate set of books of account... agreement. The books of original entry and ledgers may be similar in design to those heretofore employed...

  1. 46 CFR Section 1 - Books of account.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 8 2011-10-01 2011-10-01 false Books of account. Section 1 Section 1 Shipping MARITIME... TRANSACTIONS UNDER AGENCY AGREEMENTS Accounts Section 1 Books of account. A separate set of books of account... agreement. The books of original entry and ledgers may be similar in design to those heretofore employed...

  2. 46 CFR Section 1 - Books of account.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 8 2014-10-01 2014-10-01 false Books of account. Section 1 Section 1 Shipping MARITIME... TRANSACTIONS UNDER AGENCY AGREEMENTS Accounts Section 1 Books of account. A separate set of books of account... agreement. The books of original entry and ledgers may be similar in design to those heretofore employed...

  3. 46 CFR Section 1 - Books of account.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 8 2013-10-01 2013-10-01 false Books of account. Section 1 Section 1 Shipping MARITIME... TRANSACTIONS UNDER AGENCY AGREEMENTS Accounts Section 1 Books of account. A separate set of books of account... agreement. The books of original entry and ledgers may be similar in design to those heretofore employed...

  4. 14 CFR Section 04 - Air Carrier Groupings

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false Air Carrier Groupings Section 04 Section 04... REGULATIONS UNIFORM SYSTEM OF ACCOUNTS AND REPORTS FOR LARGE CERTIFICATED AIR CARRIERS Section 04 Air Carrier Groupings (a) All large certificated air carriers are placed into three basic air carrier groupings...

  5. 14 CFR Section 04 - Air Carrier Groupings

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 4 2011-01-01 2011-01-01 false Air Carrier Groupings Section 04 Section 04... REGULATIONS UNIFORM SYSTEM OF ACCOUNTS AND REPORTS FOR LARGE CERTIFICATED AIR CARRIERS Section 04 Air Carrier Groupings (a) All large certificated air carriers are placed into three basic air carrier groupings...

  6. Turbine Engine Hot Section Technology, 1985

    NASA Technical Reports Server (NTRS)

    1985-01-01

    The Turbine Engine Section Technology (HOST) Project Office of the Lewis Research Center sponsored a workshop to discuss current research pertinent to turbine engine hot section durability problems. Presentations were made concerning hot section environment and the behavior of combustion liners, turbine blades, and turbine vanes.

  7. Legally Best Practices in Section 504 Plans

    ERIC Educational Resources Information Center

    Holler, Rachel; Zirkel, Perry A.

    2008-01-01

    Section 504 is civil rights legislation that is part of the Rehabilitation Act of 1973. Section 504 directly affects public schools, prohibiting discrimination against persons with disabilities. More specifically to students with disabilities, Section 504 provides various procedural protections and, for students, an entitlement to…

  8. The UKIRT centre section structural investigation

    NASA Astrophysics Data System (ADS)

    Raybould, K.

    1984-07-01

    A finite element analysis was used to determine whether the pointing and tracking performance of the United Kingdom Infrared Telescope could be improved by stiffening the center section. Corner tie strain gage measurements were taken on the center section. Results show that pointing and tracking performance would not be improved by stiffening the telescope center section.

  9. 46 CFR Section 1 - Books of account.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 8 2010-10-01 2010-10-01 false Books of account. Section 1 Section 1 Shipping MARITIME... TRANSACTIONS UNDER AGENCY AGREEMENTS Accounts Section 1 Books of account. A separate set of books of account... agreement. The books of original entry and ledgers may be similar in design to those heretofore employed...

  10. SNL RML recommended dosimetry cross section compendium

    SciTech Connect

    Griffin, P.J.; Kelly, J.G.; Luera, T.F.; VanDenburg, J.

    1993-11-01

    A compendium of dosimetry cross sections is presented for use in the characterization of fission reactor spectrum and fluence. The contents of this cross section library are based upon the ENDF/B-VI and IRDF-90 cross section libraries and are recommended as a replacement for the DOSCROS84 multigroup library that is widely used by the dosimetry community. Documentation is provided on the rationale for the choice of the cross sections selected for inclusion in this library and on the uncertainty and variation in cross sections presented by state-of-the-art evaluations.

  11. An evaluation of three helicopter rotor sections

    NASA Technical Reports Server (NTRS)

    Hicks, R. M.; Collins, L. J.

    1985-01-01

    Three helicopter rotor sections were tested in the NASA Ames Research Center 2- by 2-Foot Transonic Wind Tunnel over a Mach range from 0.2 to 0.88. The sections tested had maximum thickness/chord ratios of 0.078, 0.09, and 0.10. The thickest section was of early technology and had been tested previously in other wind tunnels. This section was included in the investigation to establish a basis for comparing the two thinner sections, which were of recent design. The results of the investigation showed that the pitching-moment characteristics for the three airfoil sections were acceptable. The drag divergence Mach numbers for the three sections were 0.80, 0.825, and 0.845 in order of decreasing thickness.

  12. Expandable mixing section gravel and cobble eductor

    DOEpatents

    Miller, Arthur L.; Krawza, Kenneth I.

    1997-01-01

    In a hydraulically powered pump for excavating and transporting slurries in hich it is immersed, the improvement of a gravel and cobble eductor including an expandable mixing section, comprising: a primary flow conduit that terminates in a nozzle that creates a water jet internal to a tubular mixing section of the pump when water pressure is applied from a primary supply flow; a tubular mixing section having a center line in alignment with the nozzle that creates a water jet; a mixing section/exit diffuser column that envelopes the flexible liner; and a secondary inlet conduit that forms an opening at a bas portion of the column and adjacent to the nozzle and water jet to receive water saturated gravel as a secondary flow that mixes with the primary flow inside of the mixing section to form a combined total flow that exits the mixing section and decelerates in the exit diffuser.

  13. Vertically stabilized elongated cross-section tokamak

    DOEpatents

    Sheffield, George V.

    1977-01-01

    This invention provides a vertically stabilized, non-circular (minor) cross-section, toroidal plasma column characterized by an external separatrix. To this end, a specific poloidal coil means is added outside a toroidal plasma column containing an endless plasma current in a tokamak to produce a rectangular cross-section plasma column along the equilibrium axis of the plasma column. By elongating the spacing between the poloidal coil means the plasma cross-section is vertically elongated, while maintaining vertical stability, efficiently to increase the poloidal flux in linear proportion to the plasma cross-section height to achieve a much greater plasma volume than could be achieved with the heretofore known round cross-section plasma columns. Also, vertical stability is enhanced over an elliptical cross-section plasma column, and poloidal magnetic divertors are achieved.

  14. Absolute cross sections of compound nucleus reactions

    NASA Astrophysics Data System (ADS)

    Capurro, O. A.

    1993-11-01

    The program SEEF is a Fortran IV computer code for the extraction of absolute cross sections of compound nucleus reactions. When the evaporation residue is fed by its parents, only cumulative cross sections will be obtained from off-line gamma ray measurements. But, if one has the parent excitation function (experimental or calculated), this code will make it possible to determine absolute cross sections of any exit channel.

  15. Mechanical Serial-Sectioning Data Assistant

    SciTech Connect

    Poulter, Gregory A.; Madison, Jonathan D.

    2015-11-17

    Mechanical Serial-Sectioning Data Assistant (MECH-SSDA) is a real-time data analytics software with graphical user-interface that: 1) tracks and visualizes material removal rates for mechanical serial-sectioning experiments using at least two height measurement methods 2) tracks process time for specific segments of the serial-sectioning experiment and 3) alerts the user to anomalies in expected removal rate, process time or unanticipated operational pauses

  16. Annular-Cross-Section CFE Chamber

    NASA Technical Reports Server (NTRS)

    Sharnez, Rizwan; Sammons, David W.

    1994-01-01

    Proposed continuous-flow-electrophoresis (CFE) chamber of annular cross section offers advantages over conventional CFE chamber, and wedge-cross-section chamber described in "Increasing Sensitivity in Continuous-Flow Electrophoresis" (MFS-26176). In comparison with wedge-shaped chamber, chamber of annular cross section virtually eliminates such wall effects as electro-osmosis and transverse gradients of velocity. Sensitivity enhanced by incorporating gradient maker and radial (collateral) flow.

  17. Cross Sections for Electron Collisions with Acetylene

    NASA Astrophysics Data System (ADS)

    Song, Mi-Young; Yoon, Jung-Sik; Cho, Hyuck; Karwasz, Grzegorz P.; Kokoouline, Viatcheslav; Nakamura, Yoshiharu; Tennyson, Jonathan

    2017-03-01

    Cross section data are compiled from the literature for electron collisions with the acetylene (HCCH) molecule. Cross sections are collected and reviewed for total scattering, elastic scattering, momentum transfer, excitations of rotational and vibrational states, dissociation, ionization, and dissociative attachment. The data derived from swarm experiments are also considered. For each of these processes, the recommended values of the cross sections are presented. The literature has been surveyed through early 2016.

  18. Cross Sections for Electron Collisions with Methane

    SciTech Connect

    Song, Mi-Young Yoon, Jung-Sik; Cho, Hyuck; Itikawa, Yukikazu; Karwasz, Grzegorz P.; Kokoouline, Viatcheslav; Nakamura, Yoshiharu; Tennyson, Jonathan

    2015-06-15

    Cross section data are compiled from the literature for electron collisions with methane (CH{sub 4}) molecules. Cross sections are collected and reviewed for total scattering, elastic scattering, momentum transfer, excitations of rotational and vibrational states, dissociation, ionization, and dissociative attachment. The data derived from swarm experiments are also considered. For each of these processes, the recommended values of the cross sections are presented. The literature has been surveyed through early 2014.

  19. Neutron capture cross section of 102Pd

    NASA Astrophysics Data System (ADS)

    Duncan, C. L.; Krane, K. S.

    2005-05-01

    The cross sections for radiative neutron capture by 102Pd have been deduced from a measurement of the γ rays emitted by 17.0-d 103Pd. The thermal cross section has been determined to be σ=1.82±0.20 b, and the effective resonance integral is I=23±4 b. We also report thermal and resonance capture cross sections for 108Pd and note possible inconsistencies with the presently accepted values of the 110Pd cross sections.

  20. Cross-sectional anatomy for computed tomography

    SciTech Connect

    Farkas, M.L.

    1988-01-01

    This self-study guide recognizes that evaluation and interpretation of CT-images demands a firm understanding of both cross-sectional anatomy and the principles of computed tomography. The objectives of this book are: to discuss the basic principles of CT, to stress the importance of cross-sectional anatomy to CT through study of selected cardinal transverse sections of head, neck, and trunk, to explain orientation and interpretation of CT-images with the aid of corresponding cross-sectional preparations.

  1. The Golden Section as Optical Limitation.

    PubMed

    Elliott, Mark A; Kelly, Joy; Friedel, Jonas; Brodsky, Jennifer; Mulcahy, Paul

    2015-01-01

    The golden section, ϕ = (1 + √5)/2 = 1.618... and its companion ϕ = 1/ϕ = ϕ -1 = 0.618..., are irrational numbers which for centuries were believed to confer aesthetic appeal. In line with the presence of golden sectioning in natural growth patterns, recent EEG recordings show an absence of coherence between brain frequencies related by the golden ratio, suggesting the potential relevance of the golden section to brain dynamics. Using Mondrian-type patterns comprising a number of paired sections in a range of five section-section areal ratios (including golden-sectioned pairs), participants were asked to indicate as rapidly and accurately as possible the polarity (light or dark) of the smallest section in the patterns. They were also asked to independently assess the aesthetic appeal of the patterns. No preference was found for golden-sectioned patterns, while reaction times (RTs) tended to decrease overall with increasing ratio independently of each pattern's fractal dimensionality. (Fractal dimensionality was unrelated to ratio and measured in terms of the Minkowski-Bouligand box-counting dimension). The ease of detecting the smallest section also decreased with increasing ratio, although RTs were found to be substantially slower for golden-sectioned patterns under 8-paired sectioned conditions. This was confirmed by a significant linear relationship between RT and ratio (p < .001) only when the golden-sectioned RTs were excluded [the relationship was non-significant for the full complement of ratios (p = .217)]. Image analysis revealed an absence of spatial frequencies between 4 and 8 cycles-per-degree that was exclusive to the 8-paired (golden)-sectioned patterns. The significance of this was demonstrated in a subsequent experiment by addition of uniformly distributed random noise to the patterns. This provided a uniform spatial-frequency profile for all patterns, which did not influence the decrease in RT with increasing ratio but abolished the elevated

  2. The Golden Section as Optical Limitation

    PubMed Central

    Friedel, Jonas; Brodsky, Jennifer

    2015-01-01

    The golden section, ϕ = (1 + √5)/2 = 1.618… and its companion ϕ = 1/ϕ = ϕ -1 = 0.618…, are irrational numbers which for centuries were believed to confer aesthetic appeal. In line with the presence of golden sectioning in natural growth patterns, recent EEG recordings show an absence of coherence between brain frequencies related by the golden ratio, suggesting the potential relevance of the golden section to brain dynamics. Using Mondrian-type patterns comprising a number of paired sections in a range of five section-section areal ratios (including golden-sectioned pairs), participants were asked to indicate as rapidly and accurately as possible the polarity (light or dark) of the smallest section in the patterns. They were also asked to independently assess the aesthetic appeal of the patterns. No preference was found for golden-sectioned patterns, while reaction times (RTs) tended to decrease overall with increasing ratio independently of each pattern’s fractal dimensionality. (Fractal dimensionality was unrelated to ratio and measured in terms of the Minkowski-Bouligand box-counting dimension). The ease of detecting the smallest section also decreased with increasing ratio, although RTs were found to be substantially slower for golden-sectioned patterns under 8-paired sectioned conditions. This was confirmed by a significant linear relationship between RT and ratio (p <.001) only when the golden-sectioned RTs were excluded [the relationship was non-significant for the full complement of ratios (p = .217)]. Image analysis revealed an absence of spatial frequencies between 4 and 8 cycles-per-degree that was exclusive to the 8-paired (golden)-sectioned patterns. The significance of this was demonstrated in a subsequent experiment by addition of uniformly distributed random noise to the patterns. This provided a uniform spatial-frequency profile for all patterns, which did not influence the decrease in RT with increasing ratio but abolished the elevated

  3. 31 CFR 800.222 - Section 721.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Section 721. 800.222 Section 800.222 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF INVESTMENT SECURITY, DEPARTMENT OF THE TREASURY REGULATIONS PERTAINING TO MERGERS, ACQUISITIONS, AND TAKEOVERS...

  4. 76 FR 12760 - Section 302 Report

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-08

    ... Copyright Office Section 302 Report AGENCY: Copyright Office, Library of Congress. ACTION: Notice of inquiry; correction. SUMMARY: The Copyright Office published in the Federal Register of ] March 3, 2011, a Notice of... statutory licensing requirements in Section 111, 119, and 122 of the Copyright Act. FOR FURTHER...

  5. 40 CFR 86.1204 - Section numbering.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ...) CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES (CONTINUED) Evaporative Emission Test Procedures for New Gasoline-Fueled, Natural Gas-Fueled, Liquefied Petroleum Gas-Fueled and Methanol-Fueled Heavy-Duty Vehicles § 86.1204 Section numbering. The section numbering system set forth...

  6. 40 CFR 86.1204 - Section numbering.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...) CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES (CONTINUED) Evaporative Emission Test Procedures for New Gasoline-Fueled, Natural Gas-Fueled, Liquefied Petroleum Gas-Fueled and Methanol-Fueled Heavy-Duty Vehicles § 86.1204 Section numbering. The section numbering system set forth...

  7. 40 CFR 86.1204 - Section numbering.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES (CONTINUED) Evaporative Emission Test Procedures for New Gasoline-Fueled, Natural Gas-Fueled, Liquefied Petroleum Gas-Fueled and Methanol-Fueled Heavy-Duty Vehicles § 86.1204 Section numbering. The section numbering system set forth...

  8. 40 CFR 86.1204 - Section numbering.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...) CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES (CONTINUED) Evaporative Emission Test Procedures for New Gasoline-Fueled, Natural Gas-Fueled, Liquefied Petroleum Gas-Fueled and Methanol-Fueled Heavy-Duty Vehicles § 86.1204 Section numbering. The section numbering system set forth...

  9. AFS Estuaries Section - A Successful Partnership

    EPA Science Inventory

    The Estuaries Section of the American Fisheries Society offers travel awards to students in support of their attendance and presentations at the AFS meeting. Since 2007, the Southern Association of Marine Laboratories has partnered with the Estuaries Section to sponsor two stude...

  10. Neutrino Cross Sections at Solar Energies

    NASA Astrophysics Data System (ADS)

    Strigari, Louis

    2017-01-01

    I will review neutrino nucleus cross section measurements and uncertainties for energies applicable to solar neutrinos. I will discuss how these cross sections are important for interpreting solar neutrino experimental data, and highlight the most important neutrino-nucleus interactions that will be relevant for forthcoming dark matter direct detection experiments. NSF PHY-1522717.

  11. Preparing School Personnel to Implement Section 504

    ERIC Educational Resources Information Center

    Shaw, Stan F.; Madaus, Joseph W.

    2008-01-01

    Section 504 of the Rehabilitation Act of 1973 has become an increasingly important mechanism in providing services to students with disabilities in public schools. Because Section 504 is a civil rights law, responsibility for its implementation involves a range of school-based professionals, including administrators, general education teachers,…

  12. Zero-Chromatic Ffag Straight Section

    NASA Astrophysics Data System (ADS)

    Lagrange, J.-B.; Planche, T.; Mori, Y.

    Fixed Field Alternating Gradient (FFAG) elements are usually designed in a circular shape, but straight sections can also be imagined. A demonstration using the scaling condition is first shown. Combining different scaling FFAG sections is then discussed and opens new possibilities for scaling FFAGs. As an example, an application with a new lattice proposal for the PRISM project is finally presented in this paper.

  13. Neutrino flux predictions for cross section measurements

    SciTech Connect

    Hartz, Mark

    2015-05-15

    Experiments that measure neutrino interaction cross sections using accelerator neutrino sources require a prediction of the neutrino flux to extract the interaction cross section from the measured neutrino interaction rate. This article summarizes methods of estimating the neutrino flux using in-situ and ex-situ measurements. The application of these methods by current and recent experiments is discussed.

  14. Section 619 Profile. 11th Edition.

    ERIC Educational Resources Information Center

    Danaher, Joan, Ed.; Kraus, Robert, Ed.

    The 11th edition of the Section 619 Profile describes services provided under the Preschool Grants Program for Children with Disabilities (Section 619 of Part B) of the Individuals with Disabilities Education Act (IDEA). It presents current and/or historical information for all 50 states, the District of Columbia and Puerto Rico, which are all…

  15. 29 CFR Section 1607.16 - Definitions.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... in hiring, promotion, or other employment decision which works to the disadvantage of members of a race, sex, or ethnic group. See section 4 of these guidelines. C. Compliance with these guidelines. Use... race, sex, or ethnic group (see section 4, above), or, in unusual circumstances, if use of...

  16. 46 CFR 154.1130 - Sections.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Sections. 154.1130 Section 154.1130 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES Design, Construction and Equipment Firefighting §...

  17. Heat exchanger with a removable tube section

    DOEpatents

    Wolowodiuk, W.; Anelli, J.

    1975-07-29

    A heat exchanger is described in which the tube sheet is secured against primary liquid pressure, but which allows for easy removal of the tube section. The tube section is supported by a flange which is secured by a number of shear blocks, each of which extends into a slot which is immovable with respect to the outer shell of the heat exchanger. (auth)

  18. Gender Representation in Newspaper Business Sections.

    ERIC Educational Resources Information Center

    Greenwald, Marilyn S.

    To examine the representation of women in newspaper business sections, a study conducted content analyses of 30 business section front pages in "The Columbus Dispatch" in Ohio (weekly circulation about 260,000 and Sunday circulation 350,000) and "The (Louisville) Courier-Journal" in Kentucky (weekly circulation about 233,000…

  19. Section 619 Profile. 15th Edition

    ERIC Educational Resources Information Center

    Lazara, Alex, Ed.; Danaher, Joan, Ed.; Kraus, Robert, Ed.

    2007-01-01

    This 2007 edition of the Section 619 Profile updates information on state policies, programs, and practices under the Preschool Grants Program (Section 619 of Part B) of the Individuals with Disabilities Education Act (IDEA). It presents current and/or historical information for all 50 states, the District of Columbia and Puerto Rico, which are…

  20. 47 CFR 36.301 - Section arrangement.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Section arrangement. 36.301 Section 36.301 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES JURISDICTIONAL SEPARATIONS... Billing and Collecting Expense 36.381. Category 3—All other Customer Service Expense 36.382....

  1. General Potential Theory of Arbitrary Wing Sections

    NASA Technical Reports Server (NTRS)

    Theodorsen, T.; Garrick, I. E.

    1979-01-01

    The problem of determining the two dimensional potential flow around wing sections of any shape is examined. The problem is condensed into the compact form of an integral equation capable of yielding numerical solutions by a direct process. An attempt is made to analyze and coordinate the results of earlier studies relating to properties of wing sections. The existing approximate theory of thin wing sections and the Joukowski theory with its numerous generalizations are reduced to special cases of the general theory of arbitrary sections, permitting a clearer perspective of the entire field. The method which permits the determination of the velocity at any point of an arbitrary section and the associated lift and moments is described. The method is also discussed in terms for developing new shapes of preassigned aerodynamical properties.

  2. Surface Hold Advisor Using Critical Sections

    NASA Technical Reports Server (NTRS)

    Law, Caleb Hoi Kei (Inventor); Hsiao, Thomas Kun-Lung (Inventor); Mittler, Nathan C. (Inventor); Couluris, George J. (Inventor)

    2013-01-01

    The Surface Hold Advisor Using Critical Sections is a system and method for providing hold advisories to surface controllers to prevent gridlock and resolve crossing and merging conflicts among vehicles traversing a vertex-edge graph representing a surface traffic network on an airport surface. The Advisor performs pair-wise comparisons of current position and projected path of each vehicle with other surface vehicles to detect conflicts, determine critical sections, and provide hold advisories to traffic controllers recommending vehicles stop at entry points to protected zones around identified critical sections. A critical section defines a segment of the vertex-edge graph where vehicles are in crossing or merging or opposite direction gridlock contention. The Advisor detects critical sections without reference to scheduled, projected or required times along assigned vehicle paths, and generates hold advisories to prevent conflicts without requiring network path direction-of-movement rules and without requiring rerouting, rescheduling or other network optimization solutions.

  3. Nucleon-Nucleon Total Cross Section

    NASA Technical Reports Server (NTRS)

    Norbury, John W.

    2008-01-01

    The total proton-proton and neutron-proton cross sections currently used in the transport code HZETRN show significant disagreement with experiment in the GeV and EeV energy ranges. The GeV range is near the region of maximum cosmic ray intensity. It is therefore important to correct these cross sections, so that predictions of space radiation environments will be accurate. Parameterizations of nucleon-nucleon total cross sections are developed which are accurate over the entire energy range of the cosmic ray spectrum.

  4. Neutron Capture Cross Section of 239Pu

    NASA Astrophysics Data System (ADS)

    Mosby, S.; Arnold, C.; Bredeweg, T. A.; Chyzh, A.; Couture, A.; Henderson, R.; Jandel, M.; Kwan, E.; O'Donnell, J. M.; Rusev, G.; Ullmann, J. L.; Wu, C. Y.

    2014-05-01

    The Detector for Advanced Neutron Capture Experiments (DANCE) has been used to measure the 239Pu(n,γ) cross section from 10 eV to the keV region. Three experimental run conditions were used to characterize the prompt fission γ-ray spectrum across the entire energy regime, measure the cross section in the resolved resonance region, and obtain necessary count rate well into the keV region. The preliminary cross sections are in good agreement with current evaluations from 10 eV to 80 keV.

  5. K-shell photoionization cross-sections.

    NASA Technical Reports Server (NTRS)

    Daltabuit, E.; Cox, D. P.

    1972-01-01

    Approximate values for the threshold energies, threshold cross sections, and energy dependence of the cross sections for K-shell photoionization are tabulated for H, He, C, N, O, Ne, Mg, Si, and S in all stages of ionization. The approximation of these data is based on the assumptions that the threshold energy is a simple function of the nuclear charge and the number of electrons present in the atom, and that the threshold values and energy dependence of the cross sections are determined only by the threshold energy.

  6. Cross Section Evaluations for Arsenic Isotopes

    SciTech Connect

    Pruet, J; McNabb, D P; Ormand, W E

    2005-03-10

    The authors present an evaluation of cross sections describing reactions with neutrons incident on the arsenic isotopes with mass numbers 75 and 74. Particular attention is paid to (n,2n) reactions. The evaluation for {sup 75}As, the only stable As isotope, is guided largely by experimental data. Evaluation for {sup 74}As is made through calculations with the EMPIRE statistical-model reaction code. Cross sections describing the production and destruction of the 26.8 ns isomer in {sup 74}As are explicitly considered. Uncertainties and covariances in some evaluated cross sections are also estimated.

  7. Section 508 Awareness Part 2 of 3: Why Section 508 is Important?

    NASA Video Gallery

    Section 508 Awareness training video. This video is part of a series of training sessions that was delivered at Ames Research Center on November 1st, 2011 by Antonio HaileSelassie, the Section 508 ...

  8. Building Sections and Detailed Wall Sections U.S. Veterans Hospital, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Building Sections and Detailed Wall Sections - U.S. Veterans Hospital, Jefferson Barracks, Therapeutic Exercise Building, VA Medical Center, Jefferson Barracks Division 1 Jefferson Barracks Drive, Saint Louis, Independent City, MO

  9. Overall Building 22 NorthSouth Section and Sections of Stair Halls, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Overall Building 22 North-South Section and Sections of Stair Halls, Hobby Shop, Classroom 5, Library Reading Room & Multi-Purpose Hall - San Quentin State Prison, Building 22, Point San Quentin, San Quentin, Marin County, CA

  10. Benchmark cross sections for bottom quark production

    SciTech Connect

    Berger, E.L.

    1988-01-07

    A summary is presented of theoretical expectations for the total cross sections for bottom quark production, for longitudinal and transverse momentum distributions, and for b, /bar b/ momentum correlations at Fermilab fixed target and collider energies.

  11. Section 608 Technician Certification Test Topics

    EPA Pesticide Factsheets

    Identifies some of the topics covered on Section 608 Technician Certification tests such as ozone depletion, the Clean Air Act and Montreal Protocol, Substitute Refrigerants and oils, Refrigeration and Recovery Techniques.

  12. Evolutionary relationships in Vaccinium section Cyanococcus

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The North American Vaccinium section Cyanococcus includes the ecologically and economically important blueberry species, Vaccinium corymbosum (highbush blueberry), Vaccinium angustifolium (lowbush blueberry), Vaccinium myrtilloides (velvet-leaf blueberry), and Vaccinium virgatum (rabbiteye blueberry...

  13. Bibliography of photoabsorption cross-section data

    NASA Technical Reports Server (NTRS)

    Hudson, R. D.; Kieffer, L. J.

    1970-01-01

    This bibliography contains only references which report a measured or calculated photoabsorption cross section (relative or normalized) in regions of continuous absorption. The bibliography is current as of January 1, 1970.

  14. A nuclear cross section data handbook

    SciTech Connect

    Fisher, H.O.M.

    1989-12-01

    Isotopic information, reaction data, data availability, heating numbers, and evaluation information are given for 129 neutron cross-section evaluations, which are the source of the default cross sections for the Monte Carlo code MCNP. Additionally, pie diagrams for each nuclide displaying the percent contribution of a given reaction to the total cross section are given at 14 MeV, 1 MeV, and thermal energy. Other information about the evaluations and their availability in continuous-energy, discrete-reaction, and multigroup forms is provided. The evaluations come from ENDF/B-V, ENDL85, and the Los Alamos Applied Nuclear Science Group T-2. Graphs of all neutron and photon production cross-section reactions for these nuclides have been categorized and plotted. 21 refs., 5 tabs.

  15. Use of frozen section in genitourinary pathology.

    PubMed

    Shen, Steven S; Truong, Luan D; Ro, Jae Y; Ayala, Alberto G

    2012-08-01

    Frozen section diagnosis provides critical information for immediate surgical management decision making. Over the last several years, there have been some significant advances in treatment of genitourinary cancer, particularly with regard to surgical techniques. These changes in turn impact the type and frequency of intraoperative frozen section requests. In this review, we describe the main indications and diagnostic challenges of frozen section diagnosis during surgeries of each genitourinary organ system including prostate, kidney, bladder, testis, and penis. The pitfalls and approaches to different diagnostic situations are discussed. It is also stressed that pathologists must not only be familiar with the histological diagnosis, but also understand the limitations of frozen section diagnosis and communicate with urologists during the intraoperative treatment decision making process.

  16. The radar cross section of dielectric disks

    NASA Technical Reports Server (NTRS)

    Levine, D. M.

    1982-01-01

    A solution is presented for the backscatter (nonstatic) radar cross section of dielectric disks of arbitrary shape, thickness and dielectric constant. The result is obtained by employing a Kirchhoff type approximation to obtain the fields inside the disk. The internal fields induce polarization and conduction currents from which the scattered fields and the radar cross section can be computed. The solution for the radar cross section obtained in this manner is shown to agree with known results in the special cases of normal incidence, thin disks and perfect conductivity. The solution can also be written as a product of the reflection coefficient of an identically oriented slab times the physical optics solution for the backscatter cross section of a perfectly conducting disk of the same shape. This result follows directly from the Kirchhoff type approximation without additional assumptions.

  17. Energy dependence of fusion cross sections

    SciTech Connect

    Bang, J.M.; Ferreira, L.S.; Maglione, E.; Hansteen, J.M.

    1996-01-01

    Observed enhancements of fusion cross sections at low energies are explained as caused by an underestimate of beam energy due to an overestimate of the stopping energy loss. {copyright} {ital 1996 The American Physical Society.}

  18. TSCA Section 8(e) Reporting Guide

    EPA Pesticide Factsheets

    This reporting guide has been compiled by EPA's Office of Toxic substances (OTS) to assist potential respondents who manufacture, import, process or distribute chemical substances in complying with Section 8(e).

  19. MODELING AND FISSION CROSS SECTIONS FOR AMERICIUM.

    SciTech Connect

    ROCHMAN, D.; HERMAN, M.; OBLOZINSKY, P.

    2005-05-01

    This is the final report of the work performed under the LANL contract on the modeling and fission cross section for americium isotopes (May 2004-June 2005). The purpose of the contract was to provide fission cross sections for americium isotopes with the nuclear reaction model code EMPIRE 2.19. The following work was performed: (1) Fission calculations capability suitable for americium was implemented to the EMPIRE-2.19 code. (2) Calculations of neutron-induced fission cross sections for {sup 239}Am to {sup 244g}Am were performed with EMPIRE-2.19 for energies up to 20 MeV. For the neutron-induced reaction of {sup 240}Am, fission cross sections were predicted and uncertainties were assessed. (3) Set of fission barrier heights for each americium isotopes was chosen so that the new calculations fit the experimental data and follow the systematics found in the literature.

  20. Cesarean Section: MedlinePlus Health Topic

    MedlinePlus

    ... VBAC). NIH: National Institute of Child Health and Human Development Start Here C-Section Recovery: What to Expect ( ... Cesarean Delivery? (National Institute of Child Health and Human Development) Also in Spanish Related Issues Breastfeeding After Cesarean ...

  1. Planning a DSN support section technical library

    NASA Technical Reports Server (NTRS)

    Bailey, T.; Chatburn, C. C.

    1980-01-01

    The planning procedure being used to establish a technical library for the Deep Space Network support section is described. The inventory and survey methods employed are described and the preliminary results of these methods are discussed.

  2. The radar cross section of dielectric disks

    NASA Technical Reports Server (NTRS)

    Le Vine, D. M.

    1984-01-01

    A solution is presented for the backscatter (monostatic) radar cross section of dielectric disks of arbitrary shape, thickness, and dielectric constant. The result is obtained by employing a Kirchhoff-type approximation to obtain the fields inside the disk. The internal fields induce polarization and conduction currents from which the scattered fields and the radar cross section can be computed. The solution for the radar cross section obtained in this manner will be shown to agree with known results in the special cases of normal incidence, thin disks, and perfect conductivity. It will also be shown that the solution can be written as a product of the reflection coefficient of an identically oriented slab times the physical optics solution for the backscatter cross section of a perfectly conducting disk of the same shape. This result follows directly from the Kirchhoff-type approximation without additional assumptions.

  3. Section 508 Electronic Documents: Making Word Docs

    NASA Video Gallery

    Section 508 training video for Electronic Documents on making Word documents accessible for conversion to PDF. This video is part of a series of training sessions that was delivered at Ames Researc...

  4. Section 508 Electronic Documents: Best Practices

    NASA Video Gallery

    Section 508 training video on Best Practices for Electronic Documents. This video is part of a series of training sessions that was delivered at Ames Research Center on November 1st, 2011 by Antoni...

  5. Comparison of Weigert Stained Sections with Unfixed, Unstained Sections for Study of Myelin Sheaths

    PubMed Central

    Richter, Curt P.; Warner, Carolyn L.

    1974-01-01

    Myelinated fibers can be demonstrated in thin unstained brain sections of freshly killed uninjected animals. With this method myelinated fibers stand out as clearly as in stained Weigert sections from formalin-fixed brains. Unstained unfixed sections can be viewed under ordinary light within minutes after death of the animal and immediately photographed for permanent records. Such sections have value for neuroanatomical studies, and for rapid localization of various types of experimental lesions. Images PMID:4132530

  6. Torsion and buckling of open sections

    NASA Technical Reports Server (NTRS)

    Wagner, Herbert

    1936-01-01

    In this paper is a discussion of the general principles for open sections of any shape. In what follows the torsion will be computed and on the basis of the results it will be possible to obtain a proper design of section in each case. The torsion of buckling members for the case where they are centrally loaded, leads to a problem in pure stability and is similar to that of stressed beams.

  7. Turbine Engine Hot Section Technology (HOST) Project

    NASA Technical Reports Server (NTRS)

    Sokolowski, Daniel E.; Ensign, C. Robert

    1986-01-01

    The Hot Section Technology (HOST) Project is a NASA-sponsored endeavor to improve the durability of advanced gas turbine engines for commercial and military aircraft. Through improvements in the analytical models and life prediction systems, designs for future hot section components, the combustor and turbine, will be more accurately analyzed and will incorporate features required for longer life in the more hostile operating environment of high performance engines.

  8. [The biological essence of golden sections].

    PubMed

    Radiuk, M S

    2001-01-01

    Using the examples of phyllotaxis and the process of graduated development of plant photosynthetic apparatus the author shows that the principle of golden section is an implication of the principle of optimal construction (maximal simplicity). The principle of optimal construction is characterized by minimum of numerical relations between integer and its parts, that indicate the fractal character of studied objects and processes organized according to the golden section principle.

  9. Ultraviolet absorption cross sections of hydrogen peroxide

    NASA Technical Reports Server (NTRS)

    Lin, C. L.; Rohatgi, N. K.; Demore, W. B.

    1978-01-01

    Absorption cross-sections of hydrogen peroxide vapor and of neutral aqueous solutions of hydrogen peroxide were measured in the wavelength range from 195 to 350 nm at 296 K. The spectrophotometric procedure is described, and the reported cross-sections are compared with values obtained by other researchers. Photodissociation coefficients of atmospheric H2O2 were calculated for direct absorption of unscattered solar radiation, and the vertical distributions of these coefficients are shown for various solar zenith angles.

  10. WheelerLab: An interactive program for sequence stratigraphic analysis of seismic sections, outcrops and well sections and the generation of chronostratigraphic sections and dynamic chronostratigraphic sections

    NASA Astrophysics Data System (ADS)

    Amosu, Adewale; Sun, Yuefeng

    WheelerLab is an interactive program that facilitates the interpretation of stratigraphic data (seismic sections, outcrop data and well sections) within a sequence stratigraphic framework and the subsequent transformation of the data into the chronostratigraphic domain. The transformation enables the identification of significant geological features, particularly erosional and non-depositional features that are not obvious in the original seismic domain. Although there are some software products that contain interactive environments for carrying out chronostratigraphic analysis, none of them are open-source codes. In addition to being open source, WheelerLab adds two important functionalities not present in currently available software: (1) WheelerLab generates a dynamic chronostratigraphic section and (2) WheelerLab enables chronostratigraphic analysis of older seismic data sets that exist only as images and not in the standard seismic file formats; it can also be used for the chronostratigraphic analysis of outcrop images and interpreted well sections. The dynamic chronostratigraphic section sequentially depicts the evolution of the chronostratigraphic chronosomes concurrently with the evolution of identified genetic stratal packages. This facilitates a better communication of the sequence-stratigraphic process. WheelerLab is designed to give the user both interactive and interpretational control over the transformation; this is most useful when determining the correct stratigraphic order for laterally separated genetic stratal packages. The program can also be used to generate synthetic sequence stratigraphic sections for chronostratigraphic analysis.

  11. QuickSite Cross Section Processing

    SciTech Connect

    Richard Becker, ANL

    2003-05-27

    This AGEM-developed system produces cross sections by inputting data in both standard and custom file formats and outputting a graphic file that can be printed or further modified in a commercial graphic program. The system has evolved over several years in order to combine and visualize a changing set of field data more rapidly than was possible with commercially available cross section software packages. It uses some commercial packages to produce the input and to modify the output files. Flexibility is provided by a dynamic set of programs that are customized to accept varying input and accomodate varying output requirements. There are two basic types of routines: conversion routines and cross section generation routines. The conversion routines convery various data files to logger file format which is compatible with a standard file format for LogPlot 98, a commonly used commercial log plotting program. The cross section routines generate cross sections and apply topography to these cross sections. All of the generation routines produce a standard graphic DXF file, which is the format used in AutoCAD and can then be modified in a number of available graphics programs.

  12. 28 CFR 55.8 - Relationship between section 4(f)(4) and section 203(c).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Relationship between section 4(f)(4) and section 203(c). 55.8 Section 55.8 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) IMPLEMENTATION OF THE PROVISIONS OF THE VOTING RIGHTS ACT REGARDING LANGUAGE MINORITY GROUPS Nature of Coverage §...

  13. Section Builder: A finite element tool for analysis and design of composite beam cross-sections

    NASA Astrophysics Data System (ADS)

    Chakravarty, Uttam Kumar

    SectionBuilder is an innovative finite element based tool, developed for analysis and design of composite beam cross-sections. The tool can handle the cross-sections with parametric shapes and arbitrary configurations. It can also handle arbitrary lay-ups for predefined beam cross-section geometries in a consistent manner. The material properties for each layer of the cross-section can be defined on the basis of the design requirements. This tool is capable of dealing with multi-cell composite cross-sections with arbitrary lay-ups. It has also the benefit of handling the variation of thickness of skin and D-spars for beams such as rotor blades. A typical cross-section is considered as a collection of interconnected walls. Walls with arbitrary lay-ups based on predefined geometries and material properties are generated first. The complex composite beam cross-sections are developed by connecting the walls using various types of connectors. These connectors are compatible with the walls, i.e., the thickness of the layers of the walls must match with those of the connectors at the place of connection. Cross-sections are often reinforced by core material for constructing realistic rotor blade cross-sections. The tool has the ability to integrate core materials into the cross-sections. A mapped mesh is considered for meshing parametric shapes, walls and various connectors, whereas a free mesh is considered for meshing the core materials. A new algorithm based on the Delaunay refinement algorithm is developed for creating the best possible free mesh for core materials. After meshing the cross-section, the tool determines the sectional properties using finite element analysis. This tool computes sectional properties including stiffness matrix, compliance matrix, mass matrix, and principal axes. A visualization environment is integrated with the tool for visualizing the stress and strain distributions over the cross-section.

  14. FDAMA Section 114: Why the Renewed Interest?

    PubMed

    Perfetto, Eleanor M; Burke, Laurie; Oehrlein, Elisabeth M; Gaballah, Mena

    2015-05-01

    The FDA regulates the use of information by biopharmaceutical companies in their promotional activities. Section 114 of the Food and Drug Administration Modernization Act of 1997 (FDAMA) was specifically designed to allow companies to more readily disseminate health care economic information (HCEI) to those who need it for formulary decision making. However, very little HCEI has been distributed promotionally under this provision over the past 17 years. There are recent discussions by stakeholders regarding the need for updates, revisions, or guidance regarding Section 114.In light of recent renewed interest in Section 114 of the FDAMA, the purpose of this commentary is to equip managed care decision makers with the information they need to understand and respond to industry communications that are governed by Section 114. This commentary reviews and synthesizes the regulatory history and language of the statute and changes to the promotion regulation generated by Section 114. It explores the reasons for the section's limited use to date, for recent renewed interest, and why changes by various stakeholders are suggested at this time. Also discussed is what managed care pharmacists need to know about Section 114, and suggestions are included regarding the active role pharmacists can play in this change process. Renewed interest in FDAMA Section 114 appears to stem largely from the increasingly visible and growing interest in comparative effectiveness research, the emergence of "big data," the expanding range of data sources available for deriving HCEI, and recent court decisions that might indicate a change in the regulatory environment. Various stakeholders are proposing recommendations regarding changes to FDAMA Section 114. Managed care pharmacists should be aware that companies are restricted when communicating HCEI promotional messages; this may mean seeing the use of FDAMA Section 114 as the "competent and reliable" effectiveness standard in promotion. If the

  15. Reduction Methods for Total Reaction Cross Sections

    NASA Astrophysics Data System (ADS)

    Gomes, P. R. S.; Mendes Junior, D. R.; Canto, L. F.; Lubian, J.; de Faria, P. N.

    2016-03-01

    The most frequently used methods to reduce fusion and total reaction excitation functions were investigated in a very recent paper Canto et al. (Phys Rev C 92:014626, 2015). These methods are widely used to eliminate the influence of masses and charges in comparisons of cross sections for weakly bound and tightly bound systems. This study reached two main conclusions. The first is that the fusion function method is the most successful procedure to reduce fusion cross sections. Applying this method to theoretical cross sections of single channel calculations, one obtains a system independent curve (the fusion function), that can be used as a benchmark to fusion data. The second conclusion was that none of the reduction methods available in the literature is able to provide a universal curve for total reaction cross sections. The reduced single channel cross sections keep a strong dependence of the atomic and mass numbers of the collision partners, except for systems in the same mass range. In the present work we pursue this problem further, applying the reduction methods to systems within a limited mass range. We show that, under these circumstances, the reduction of reaction data may be very useful.

  16. 14 CFR Section 19 - Uniform Classification of Operating Statistics

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Statistics Section 19 Section 19 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION... AIR CARRIERS Operating Statistics Classifications Section 19 Uniform Classification of Operating Statistics...

  17. 14 CFR Section 19 - Uniform Classification of Operating Statistics

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Statistics Section 19 Section 19 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION... AIR CARRIERS Operating Statistics Classifications Section 19 Uniform Classification of Operating Statistics...

  18. 14 CFR Section 19 - Uniform Classification of Operating Statistics

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... Statistics Section 19 Section 19 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION... AIR CARRIERS Operating Statistics Classifications Section 19 Uniform Classification of Operating Statistics...

  19. 14 CFR Section 19 - Uniform Classification of Operating Statistics

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Statistics Section 19 Section 19 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION... AIR CARRIERS Operating Statistics Classifications Section 19 Uniform Classification of Operating Statistics...

  20. Prospects for Precision Neutrino Cross Section Measurements

    SciTech Connect

    Harris, Deborah A.

    2016-01-28

    The need for precision cross section measurements is more urgent now than ever before, given the central role neutrino oscillation measurements play in the field of particle physics. The definition of precision is something worth considering, however. In order to build the best model for an oscillation experiment, cross section measurements should span a broad range of energies, neutrino interaction channels, and target nuclei. Precision might better be defined not in the final uncertainty associated with any one measurement but rather with the breadth of measurements that are available to constrain models. Current experience shows that models are better constrained by 10 measurements across different processes and energies with 10% uncertainties than by one measurement of one process on one nucleus with a 1% uncertainty. This article describes the current status of and future prospects for the field of precision cross section measurements considering the metric of how many processes, energies, and nuclei have been studied.

  1. Introduction to special section on Hydrologic Synthesis

    SciTech Connect

    Hubbard, Susan

    2006-01-23

    The Hydrological Synthesis special section presentssynthesis topics that have the potential to revolutionize hydrologicalsciences in a manner needed to meet critical water challenges that we nowface. The special section also highlights topics that are important andexciting enough to compel researchers to engage in collaborativesynthesis activities. This introductory paper provides a brief overviewof nine papers that are included in this special section, which discussthe synthesis of tools, data, concepts, theories, or approaches acrossdisciplines and scales. The wide range of topics that are exploredinclude groundwater quality, river restoration, water management,nitrogen cycling, and Earth surface dynamics. Collectively, the specialsection papers illustrate that the challenge to deal effectively withcomplex water problems is not purely a scientific, technological, orsocioeconomic one; it is instead a complex, 21st century problem thatrequires coordinated synthesis.

  2. The cross section for double Compton scattering

    NASA Technical Reports Server (NTRS)

    Gould, R. J.

    1984-01-01

    Employing elementary methods in nonrelativistic quantum electrodynamics, the cross section for gamma sub 0 + e yields e + gamma + gamma is computed for arbitrary energy in the spectrum of the outgoing photons. The final result is given, differential in the energy of one of these photons, for the case where the incident photon is unpolarized and has energy E sub 0 much less than mc-squared, a polarization sum and angular integration being performed for the final-state photons. The cross section has a simple algebraic form resulting from contributions from the sum of squared direct and exchange amplitudes; interference terms from these amplitudes do not contribute to the angular-integrated cross section.

  3. Optical diffraction analysis of petrographic thin sections.

    PubMed

    Power, P C; Pincus, H J

    1974-10-18

    Diffraction patterns that are highly reproducible, of useful quality, and consistent with the input generating them can be easily obtained with a microscope system. The input can be either a reduced photograph or a thin section. With two exceptions, the relationships between a thin section and its diffraction pattern produced by a petrographic microscope are the same as the relationships between a photographic input and its diffraction pattern produced by a conventional ODA system. The exceptions are that the diffraction patterns generated directly by the thin sections may be asymmetrical or, if the thin section is sufficiently heterogeneous, may be smeared. The microscope system is generally more useful than a conventional ODA system for the analysis of microfabric in thin sections. One can readily use the microscope system to analyze elements of widely varying spatial frequency simply by changing the objectives. The diffraction patterns can be magnified by changing to a higherpower ocular. In most cases the microscope-generated diffraction pattern transmits the useful spatial information in the thin section more completely than the conventionally produced diffraction pattern; the photographic inputs for the conventionally produced diffraction pattern emphasize lower-frequency spatial information. This property, combined with the microscope system's better response to twinning, makes the microscope more sensitive to commonly used microfabric elements. For the analysis of thin sections, a conventional ODA system is superior to the microscope system in only three cases. First, if one wants to analyze the entire thin section at one time, a conventional system must be used with a photographic input of the thin section. Second, if the thin section is extremely heterogeneous (crystallographically or mineralogically), the microscope-generated diffraction pattern may exhibit gross smearing even with the highestpower objectives available. Finally, the thin section may

  4. DSM-5 section III personality traits and section II personality disorders in a Flemish community sample.

    PubMed

    Bastiaens, Tim; Smits, Dirk; De Hert, Marc; Vanwalleghem, Dominique; Claes, Laurence

    2016-04-30

    The Personality Inventory for DSM-5 (PID-5; Krueger et al., 2012) is a dimensional self-report questionnaire designed to measure personality pathology according to the criterion B of the DSM-5 Section III personality model. In the current issue of DSM, this dimensional Section III personality model co-exists with the Section II categorical personality model derived from DSM-IV-TR. Therefore, investigation of the inter-relatedness of both models across populations and languages is warranted. In this study, we first examined the factor structure and reliability of the PID-5 in a Flemish community sample (N=509) by means of exploratory structural equation modeling and alpha coefficients. Next, we investigated the predictive ability of section III personality traits in relation to section II personality disorders through correlations and stepwise regression analyses. Results revealed a five factor solution for the PID-5, with adequate reliability of the facet scales. The variance in Section II personality disorders could be predicted by their theoretically comprising Section III personality traits, but additional Section III personality traits augmented this prediction. Based on current results, we discuss the Section II personality disorder conceptualization and the Section III personality disorder operationalization.

  5. Infant survival after cesarean section for trauma.

    PubMed Central

    Morris, J A; Rosenbower, T J; Jurkovich, G J; Hoyt, D B; Harviel, J D; Knudson, M M; Miller, R S; Burch, J M; Meredith, J W; Ross, S E; Jenkins, J M; Bass, J G

    1996-01-01

    HYPOTHESIS: Emergency cesarean sections in trauma patients are not justified and should be abandoned. SETTING AND DESIGN: A multi-institutional, retrospective cohort study was conducted of level 1 trauma centers. METHODS: Trauma admissions from nine level 1 trauma centers from January 1986 through December 1994 were reviewed. Pregnant women who underwent emergency cesarean sections were identified. Demographic and clinical data were obtained on all patients undergoing a cesarean section. Fetal distress was defined by bradycardia, deceleration, or lack of fetal heart tones (FHTs). Maternal distress was defined by shock (systolic blood pressure < 90) or acute decompensation. Statistical analyses were performed. RESULTS: Of the 114,952 consecutive trauma admissions, more than 441 pregnant women required 32 emergency cesarean sections. All were performed for fetal distress, maternal distress, or both. Overall, 15 (45%) of the fetuses and 23 (72%) of the mothers survived. Of 33 fetuses delivered, 13 had no FHTs and none survived. Twenty infants (potential survivors) had FHTs and an estimated gestational age (EGA) of greater than or equal to 26 weeks, and 75% survived. Infant survival was independent of maternal distress or maternal Injury Severity Score. The five infant deaths in the group of potential survivors resulted from delayed recognition of fetal distress, and 60% of these deaths were in mothers with mild to moderate injuries (Injury Severity Score < 16). CONCLUSIONS: In pregnant trauma patients, infant viability is defined by the presence of FHTs, estimated gestational age greater than or equal to 26 weeks. In viable infants, survival after emergency cesarean section is acceptable (75%). Infant survival is independent of maternal distress or Injury Severity Score. Sixty percent of infant deaths resulted from delay in recognition of fetal distress and cesarean section. These were potentially preventable. Given the definition of fetal viability, our initial

  6. Optical Model and Cross Section Uncertainties

    SciTech Connect

    Herman,M.W.; Pigni, M.T.; Dietrich, F.S.; Oblozinsky, P.

    2009-10-05

    Distinct minima and maxima in the neutron total cross section uncertainties were observed in model calculations using spherical optical potential. We found this oscillating structure to be a general feature of quantum mechanical wave scattering. Specifically, we analyzed neutron interaction with 56Fe from 1 keV up to 65 MeV, and investigated physical origin of the minima.We discuss their potential importance for practical applications as well as the implications for the uncertainties in total and absorption cross sections.

  7. Universal Parameterization of Absorption Cross Sections

    NASA Technical Reports Server (NTRS)

    Tripathi, R. K.; Cucinotta, Francis A.; Wilson, John W.

    1999-01-01

    Our prior nuclear absorption cross sections model is extended for light systems (A less than or equal to 4) where either both projectile and target are light particles or one is a light particle and the other is a medium or heavy nucleus. The agreement with experiment is excellent for these cases as well. Present work in combination with our original model provides a comprehensive picture of absorption cross sections for light, medium, and heavy systems, a very valuable input for radiation protection studies.

  8. Large Geomagnetic Storms: Introduction to Special Section

    NASA Technical Reports Server (NTRS)

    Gopalswamy, N.

    2010-01-01

    Solar cycle 23 witnessed the accumulation of rich data sets that reveal various aspects of geomagnetic storms in unprecedented detail both at the Sun where the storm causing disturbances originate and in geospace where the effects of the storms are directly felt. During two recent coordinated data analysis workshops (CDAWs) the large geomagnetic storms (Dst < or = -100 nT) of solar cycle 23 were studied in order to understand their solar, interplanetary, and geospace connections. This special section grew out of these CDAWs with additional contributions relevant to these storms. Here I provide a brief summary of the results presented in the special section.

  9. Covariance Evaluation Methodology for Neutron Cross Sections

    SciTech Connect

    Herman,M.; Arcilla, R.; Mattoon, C.M.; Mughabghab, S.F.; Oblozinsky, P.; Pigni, M.; Pritychenko, b.; Songzoni, A.A.

    2008-09-01

    We present the NNDC-BNL methodology for estimating neutron cross section covariances in thermal, resolved resonance, unresolved resonance and fast neutron regions. The three key elements of the methodology are Atlas of Neutron Resonances, nuclear reaction code EMPIRE, and the Bayesian code implementing Kalman filter concept. The covariance data processing, visualization and distribution capabilities are integral components of the NNDC methodology. We illustrate its application on examples including relatively detailed evaluation of covariances for two individual nuclei and massive production of simple covariance estimates for 307 materials. Certain peculiarities regarding evaluation of covariances for resolved resonances and the consistency between resonance parameter uncertainties and thermal cross section uncertainties are also discussed.

  10. Total cross sections for +/-atom collisions

    NASA Astrophysics Data System (ADS)

    Gien, T. T.

    1987-03-01

    The total cross sections for electron and positron scatterings by lithium, sodium, and potassium in the intermediate energy range from 40 to 1000 eV are calculated using the modified Glauber and second Born approximations. A model potential approach is developed to enable an exact inclusion of the core-interaction effects. Within this approach, the positron cross sections are predicted to be somewhat smaller than those of electron scattering. Calculations have also been performed with the consideration of the inert-core and frozen-core assumption and the use of the Clementi wave function to represent the target electrons. Comparison to existing experimental data is made.

  11. Neutron Capture Cross Section of 239Pu

    NASA Astrophysics Data System (ADS)

    Mosby, S.; Arnold, C.; Bredeweg, T. A.; Couture, A.; Jandel, M.; O'Donnell, J. M.; Rusev, G.; Ullmann, J. L.; Chyzh, A.; Henderson, R.; Kwan, E.; Wu, C. Y.

    2014-09-01

    The 239Pu(n,γ) cross section has been measured over the energy range 10 eV - 10 keV using the Detector for Advanced Neutron Capture Experiments (DANCE) as part of a campaign to produce precision (n,γ) measurements on 239Pu in the keV region. Fission coincidences were measured with a PPAC and used to characterize the prompt fission γ-ray spectrum in this region. The resulting spectra will be used to better characterize the fission component of another experiment with a thicker target to extend the (n,γ) cross section measurement well into the keV region.

  12. Precise neutron inelastic cross section measurements

    SciTech Connect

    Negret, Alexandru

    2012-11-20

    The design of a new generation of nuclear reactors requires the development of a very precise neutron cross section database. Ongoing experiments performed at dedicated facilities aim to the measurement of such cross sections with an unprecedented uncertainty of the order of 5% or even smaller. We give an overview of such a facility: the Gamma Array for Inelastic Neutron Scattering (GAINS) installed at the GELINA neutron source of IRMM, Belgium. Some of the most challenging difficulties of the experimental approach are emphasized and recent results are shown.

  13. New Parameterization of Neutron Absorption Cross Sections

    NASA Astrophysics Data System (ADS)

    Tripathi, Ram K.; Wilson, John W.; Cucinotta, Francis A.

    1997-06-01

    Recent parameterization of absorption cross sections for any system of charged ion collisions, including proton-nucleus collisions, is extended for neutron-nucleus collisions valid from approx. 1 MeV to a few GeV, thus providing a comprehensive picture of absorption cross sections for any system of collision pairs (charged or uncharged). The parameters are associated with the physics of the problem. At lower energies, optical potential at the surface is important, and the Pauli operator plays an increasingly important role at intermediate energies. The agreement between the calculated and experimental data is better than earlier published results.

  14. Infrared absorption cross sections of alternative CFCs

    NASA Technical Reports Server (NTRS)

    Clerbaux, Cathy; Colin, Reginald; Simon, Paul C.

    1994-01-01

    Absorption cross sections have obtained in the infrared atmospheric window, between 600 and 1500 cm(exp -1), for 10 alternative hydrohalocarbons: HCFC-22, HCFC-123, HCFC-124, HCFC-141b, HCFC-142b, HCFC-225ca, HCFC-225cb, HFC-125, HFC-134a, and HFC-152a. The measurements were made at three temperatures (287K, 270K and 253K) with a Fourier transform spectrometer operating at 0.03 cm(exp -1) apodized resolution. Integrated cross sections are also derived for use in radiative models to calculate the global warming potentials.

  15. New Parameterization of Neutron Absorption Cross Sections

    NASA Technical Reports Server (NTRS)

    Tripathi, Ram K.; Wilson, John W.; Cucinotta, Francis A.

    1997-01-01

    Recent parameterization of absorption cross sections for any system of charged ion collisions, including proton-nucleus collisions, is extended for neutron-nucleus collisions valid from approx. 1 MeV to a few GeV, thus providing a comprehensive picture of absorption cross sections for any system of collision pairs (charged or uncharged). The parameters are associated with the physics of the problem. At lower energies, optical potential at the surface is important, and the Pauli operator plays an increasingly important role at intermediate energies. The agreement between the calculated and experimental data is better than earlier published results.

  16. Automated Serial Sectioning for 3D Reconstruction

    NASA Technical Reports Server (NTRS)

    Alkemper, Jen; Voorhees, Peter W.

    2003-01-01

    Some aspects of an apparatus and method for automated serial sectioning of a specimen of a solder, aluminum, or other relatively soft opaque material are discussed. The apparatus includes a small milling machine (micromiller) that takes precise, shallow cuts (increments of depth as small as 1 micron) to expose successive sections. A microscope equipped with an electronic camera, mounted in a fixed position on the micromiller, takes pictures of the newly exposed specimen surface at each increment of depth. The images are digitized, and the resulting data are subsequently processed to reconstruct three-dimensional (3D) features of the specimen.

  17. Typical Mid Tower Elevation & Section, Typical Mid Tower Footing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Typical Mid Tower Elevation & Section, Typical Mid Tower Footing Section & Elevation, South Tower Section & Elevation, and North Tower Sections & Elevation - Cape Arago Light Station Footbridge, Gregory Point, Charleston, Coos County, OR

  18. Sectioning Clay Models Makes Anatomy & Development Tangible

    ERIC Educational Resources Information Center

    Howell, Carina Endres; Howell, James Endres

    2010-01-01

    Clay models have proved to be useful teaching aids for many topics in biology that depend on three-dimensional reasoning. Students studying embryonic development struggle to mentally reconstruct the three-dimensional structure of embryos and larvae by observing prepared slides of cross-sectional slices. Students who build clay models of embryos…

  19. Cotton fibre cross-section properties

    Technology Transfer Automated Retrieval System (TEKTRAN)

    From a structural perspective the cotton fibre is a singularly discrete, elongated plant cell with no junctions or inter-cellular boundaries. Its form in nature is essentially unadulterated from the field to the spinning mill where its cross-section properties, as for any textile fibre, are central ...

  20. AAVSO Long-Period Variable Section Update

    NASA Astrophysics Data System (ADS)

    Hutton, Kate; Simonsen, Mike

    2009-05-01

    The first of the new AAVSO "sections" is the LPV section. This section has decided to "own" SR, L & RV stars, as well as Miras. There is an LPV Section Wiki, and there has been much discussion on the AAVSO discussion e-mail list regarding the type and number of stars that should be included in the AAVSO LPV Programs. One of our first major tasks is to produce a list of stars to recommend to observers, stars for which the observers can feel that their work will be of value in the present & future age of automated surveys. The core of the list is the AAVSO "legacy stars". The legacy stars will include those stars that have a long & rich history with the AAVSO (more than 15,000 AAVSO observations in 50+ years) and those that have been the subject of many scientific publications. The remaining LPV program stars will include those with at least 5,000 observations in the AAVSO International database, those too bright for most surveys, those that are in fields too crowded for the surveys, plus any that are specifically requested by researchers. The AAVSO Binocular Program will include stars with minima brighter than about 10th magnitude, visible in binoculars for the majority of their cycles.

  1. Cross Sections From Scalar Field Theory

    NASA Technical Reports Server (NTRS)

    Norbury, John W.; Dick, Frank; Norman, Ryan B.; Nasto, Rachel

    2008-01-01

    A one pion exchange scalar model is used to calculate differential and total cross sections for pion production through nucleon- nucleon collisions. The collisions involve intermediate delta particle production and decay to nucleons and a pion. The model provides the basic theoretical framework for scalar field theory and can be applied to particle production processes where the effects of spin can be neglected.

  2. Ga-67 uptake post cesarean section

    SciTech Connect

    Lopez, O.L.; Maisano, E.R.

    1984-02-01

    Gallium-67 distribution in normal patients is well known; it is also known that the concentration in some tissues may vary according to an individual physiologic stimulus. In this report, the case of a young woman is presented who was studied 15 days after a cesarean section and showed physiologic and pathologic Ga-67 accumulation.

  3. Testing (Validating?) Cross Sections with ICSBEP Benchmarks

    SciTech Connect

    Kahler, Albert C. III

    2012-06-28

    We discuss how to use critical benchmarks from the International Handbook of Evaluated Criticality Safety Benchmark Experiments to determine the applicability of specific cross sections to the end-user's problem of interest. Particular attention is paid to making sure the selected suite of benchmarks includes the user's range of applicability (ROA).

  4. Turbine Engine Hot Section Technology, 1987

    NASA Technical Reports Server (NTRS)

    1987-01-01

    Presentations were made concerning the development of design analysis tools for combustor liners, turbine vanes, and turbine blades. Presentations were divided into six sections: instrumentation, combustion, turbine heat transfer, structural analysis, fatigue and fracture, surface protective coatings, constitutive behavior of materials, stress-strain response and life prediction methods.

  5. Neutron capture cross section of Am241

    NASA Astrophysics Data System (ADS)

    Jandel, M.; Bredeweg, T. A.; Bond, E. M.; Chadwick, M. B.; Clement, R. R.; Couture, A.; O'Donnell, J. M.; Haight, R. C.; Kawano, T.; Reifarth, R.; Rundberg, R. S.; Ullmann, J. L.; Vieira, D. J.; Wilhelmy, J. B.; Wouters, J. M.; Agvaanluvsan, U.; Parker, W. E.; Wu, C. Y.; Becker, J. A.

    2008-09-01

    The neutron capture cross section of Am241 for incident neutrons from 0.02 eV to 320 keV has been measured with the detector for advanced neutron capture experiments (DANCE) at the Los Alamos Neutron Science Center. The thermal neutron capture cross section was determined to be 665±33 b. Our result is in good agreement with other recent measurements. Resonance parameters for En<12 eV were obtained using an R-matrix fit to the measured cross section. The results are compared with values from the ENDF/B-VII.0, Mughabghab, JENDL-3.3, and JEFF-3.1 evaluations. Γn neutron widths for the first three resonances are systematically larger by 5-15% than the ENDF/B-VII.0 values. The resonance integral above 0.5 eV was determined to be 1553±7 b. Cross sections in the resolved and unresolved energy regions above 12 eV were calculated using the Hauser-Feshbach theory incorporating the width-fluctuation correction of Moldauer. The calculated results agree well with the measured data, and the extracted averaged resonance parameters in the unresolved resonance region are consistent with those for the resolved resonances.

  6. General Potential Theory of Arbitrary Wing Section

    NASA Technical Reports Server (NTRS)

    Theodorsen, T; Garrick, I E

    1934-01-01

    This report gives the exact treatment of the problem of determining the 2-dimensional potential flow around wing sections of any type. The treatment is based directly on the solution of this problem as advanced by Theodorsen in NACA-TR-411. The problem condenses into the compact form of an integral equation capable of yielding numerical solutions by a direct process.

  7. Mathematics Curriculum Guide, Sections H and I.

    ERIC Educational Resources Information Center

    Victoria Education Dept. (Australia).

    This guide is the seventh of a series of seven curriculum guides included in SE 012 723, SE 012 724, and SE 012 725, and concludes the primary school mathematics course (grades one through six in Victorian schools, Australia). It is expected that "a substantial majority of children leaving grade six will have completed Section H. Some…

  8. Cross-sectional structural parameters from densitometry

    NASA Technical Reports Server (NTRS)

    Cleek, Tammy M.; Whalen, Robert T.

    2002-01-01

    Bone densitometry has previously been used to obtain cross-sectional properties of bone from a single X-ray projection across the bone width. Using three unique projections, we have extended the method to obtain the principal area moments of inertia and orientations of the principal axes at each scan cross-section along the length of the scan. Various aluminum phantoms were used to examine scanner characteristics to develop the highest accuracy possible for in vitro non-invasive analysis of cross-sectional properties. Factors considered included X-ray photon energy, initial scan orientation, the angle spanned by the three scans (included angle), and I(min)/I(max) ratios. Principal moments of inertia were accurate to within +/-3.1% and principal angles were within +/-1 degrees of the expected value for phantoms scanned with included angles of 60 degrees and 90 degrees at the higher X-ray photon energy (140 kVp). Low standard deviations in the error (0.68-1.84%) also indicate high precision of calculated measurements with these included angles. Accuracy and precision decreased slightly when the included angle was reduced to 30 degrees. The method was then successfully applied to a pair of excised cadaveric tibiae. The accuracy and insensitivity of the algorithms to cross-sectional shape and changing isotropy (I(min)/I(max)) values when various included angles are used make this technique viable for future in vivo studies.

  9. The Section 43 Debate: The Teacher's Perspective.

    ERIC Educational Resources Information Center

    O'Brien, Allan R.; Pietersma, Eric

    2000-01-01

    The constitutionality of section 43 of the Canadian criminal code, which provides a defense to the use of reasonable and corrective force on children, has been challenged. The Canadian Teachers' Federation argues that the case is not about spanking, but about enabling teachers to maintain order and create a positive, effective learning…

  10. Section 8: Affordable Housing for Exceptional Families

    ERIC Educational Resources Information Center

    Wright, Wesley E.

    2009-01-01

    Shelter is a basic human need. Unfortunately, affordable housing is a need that low income families who are caring for children and adults with disabilities can rarely afford without assistance. Because participating families generally pay rent of no more than 30 percent of their adjusted monthly income, the Section 8 program can provide…

  11. Race, Sex, Section: Reflection or Distortion?

    ERIC Educational Resources Information Center

    Hoover, Judith D.

    Part of a larger rhetorical biography, this essay examines several of the narratives of the southern writer and humorist, Irvin S. Cobb (1876-1944), to understand the unhappy "ordinary experience" of Southern racism and sexism. Following a biographical introduction, the first section discusses Cobb's narratives, while the second deals…

  12. Taxonomic changes in Solanum section Petota

    Technology Transfer Automated Retrieval System (TEKTRAN)

    In 1990, the latest comprehensive taxonomic monograph of Solanum section Petota Dumort. recognized 236 species partitioned into 21 series. Of these, 227 were tuber-bearing and nine non-tuber-bearing. NSF-sponsored research has drastically altered knowledge of their species boundaries and interrelati...

  13. [Idiopathic brachial neuralgia after cesarean section].

    PubMed

    Rihane, B; Le Borgne, J M; Bélair, C

    2002-11-01

    We report a case of idiopathic brachial nevralgia of the right shoulder in a 30-year-old female, after caesarean section, under spinal anaesthesia. Two days after surgery, intense cervical pain appeared on the second day, associated with rapid collapse of muscular shoulder belt. Full recovery occurred in four months.

  14. Turbine Engine Hot Section Technology (HOST)

    NASA Technical Reports Server (NTRS)

    1982-01-01

    Research and plans concerning aircraft gas turbine engine hot section durability problems were discussed. Under the topics of structural analysis, fatigue and fracture, surface protective coatings, combustion, turbine heat transfer, and instrumentation specific points addressed were the thermal and fluid environment around liners, blades, and vanes, material coatings, constitutive behavior, stress-strain response, and life prediction methods for the three components.

  15. Section 609 Technician Training and Certification Programs

    EPA Pesticide Factsheets

    EPA-approved programs for technicians who service motor vehicle air conditioning (MVAC) systems. Any person who repairs or services a MVAC system for consideration must be certified under section 609 of the Clean Air Act by an EPA-approved program.

  16. Reaction cross section of 22C

    NASA Astrophysics Data System (ADS)

    Togano, Yasuhiro; Samurai Collaboration

    2014-09-01

    Reaction cross section of 22C on a carbon target at an energy of 240 MeV/nucleon have been measured by using the transmission method. The most neutron-rich carbon isotopes 22C is a candidate of a two-neutron halo nucleus. Tanaka et al. [1] measured the reaction cross section of 22C on a hydrogen target at 40 MeV/nucleon. It is showed 22C to have a large matter radius of 5 . 9 +/- 0 . 9 fm, which is much larger than the ones of carbon isotopes with N <= 14 , suggesting 22C is the halo nucleus. This reported radius has a large uncertainty due to a lack of statistics. To deduce a more accurate matter radius of 22C, the measurement of reaction cross section with higher statistics at a higher beam energy are required. The experiment was performed by using the SAMURAI spectrometer at RIBF. The 22C beam at 240 MeV/nucleon was impinged on a carbon target, and the reaction product was identified by using SAMURAI spectrometer. In the present talk, the extracted reaction cross section and derived matter density distribution of 22C will be presented.

  17. Section 504: Civil Rights for the Handicapped.

    ERIC Educational Resources Information Center

    Clelland, Richard

    Section 504 of the Rehabilitation Act of 1973 is the first major statutory civil rights enactment that protects handicapped individuals from discriminatory practices in employment and educational opportunities and in accessibility to federally supported programs and activities. The purpose of this handbook is to examine the statutory and…

  18. Golden Section Relations in Interpersonal Judgment

    ERIC Educational Resources Information Center

    Benjafield, John; Green, T. R. G.

    1978-01-01

    A model of the organization of interpersonal judgments, based on the hypothesis that people tend to organize their judgments in Golden Section ratios, was presented. A theory of the process of interpersonal judgment, based on the notion that people judge acquaintances using a Fibonacci-like decision rule, was then developed. A computer simulation…

  19. 76 FR 20373 - Section 302 Report

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-12

    ... From the Federal Register Online via the Government Publishing Office LIBRARY OF CONGRESS Copyright Office Section 302 Report AGENCY: Copyright Office, Library of Congress. ACTION: Notice of inquiry... more complete legal and factual record and will therefore serve the public interest. \\1\\ Innovation...

  20. A digital rat atlas of sectional anatomy

    NASA Astrophysics Data System (ADS)

    Yu, Li; Liu, Qian; Bai, Xueling; Liao, Yinping; Luo, Qingming; Gong, Hui

    2006-09-01

    This paper describes a digital rat alias of sectional anatomy made by milling. Two healthy Sprague-Dawley (SD) rat weighing 160-180 g were used for the generation of this atlas. The rats were depilated completely, then euthanized by Co II. One was via vascular perfusion, the other was directly frozen at -85 °C over 24 hour. After that, the frozen specimens were transferred into iron molds for embedding. A 3% gelatin solution colored blue was used to fill the molds and then frozen at -85 °C for one or two days. The frozen specimen-blocks were subsequently sectioned on the cryosection-milling machine in a plane oriented approximately transverse to the long axis of the body. The surface of specimen-blocks were imaged by a scanner and digitalized into 4,600 x2,580 x 24 bit array through a computer. Finally 9,475 sectional images (arterial vessel were not perfused) and 1,646 sectional images (arterial vessel were perfused) were captured, which made the volume of the digital atlas up to 369.35 Gbyte. This digital rat atlas is aimed at the whole rat and the rat arterial vessels are also presented. We have reconstructed this atlas. The information from the two-dimensional (2-D) images of serial sections and three-dimensional (3-D) surface model all shows that the digital rat atlas we constructed is high quality. This work lays the foundation for a deeper study of digital rat.

  1. Preliminary cross section of Englebright Lake sediments

    USGS Publications Warehouse

    Snyder, Noah P.; Hampton, Margaret A.

    2003-01-01

    Overview -- The Upper Yuba River Studies Program is a CALFED-funded, multidisciplinary investigation of the feasibility of introducing anadromous fish species to the Yuba River system upstream of Englebright Dam. Englebright Lake (Figure 1 on poster) is a narrow, 14-km-long reservoir located in the northern Sierra Nevada, northeast of Marysville, CA. The dam was completed in 1941 for the primary purpose of trapping sediment derived from mining operations in the Yuba River watershed. Possible management scenarios include lowering or removing Englebright Dam, which could cause the release of stored sediments and associated contaminants, such as mercury used extensively in 19th-century hydraulic gold mining. Transport of released sediment to downstream areas could increase existing problems including flooding and mercury bioaccumulation in sport fish. To characterize the extent, grain size, and chemistry of this sediment, a coring campaign was done in Englebright Lake in May and June 2002. More than twenty holes were drilled at 7 different locations along the longitudinal axis of the reservoir (Figure 4 on poster), recovering 6 complete sequences of post-reservoir deposition and progradation. Here, a longitudinal cross section of Englebright Lake is presented (Figure 5 on poster), including pre-dam and present-day topographic profiles, and sedimentologic sections for each coring site. This figure shows the deltaic form of the reservoir deposit, with a thick upper section consisting of sand and gravel overlying silt, a steep front, and a thinner lower section dominated by silt. The methodologies used to create the reservoir cross section are discussed in the lower part of this poster.

  2. Automatic registration of serial mammary gland sections

    SciTech Connect

    Arganda-Carreras, Ignacio; Fernandez-Gonzalez, Rodrigo; Ortiz-de-Solorzano, Carlos

    2004-04-13

    We present two new methods for automatic registration of microscope images of consecutive tissue sections. They represent two possibilities for the first step in the 3-D reconstruction of histological structures from serially sectioned tissue blocks. The goal is to accurately align the sections in order to place every relevant shape contained in each image in front of its corresponding shape in the following section before detecting the structures of interest and rendering them in 3D. This is accomplished by finding the best rigid body transformation (translation and rotation) of the image being registered by maximizing a matching function based on the image content correlation. The first method makes use of the entire image information, whereas the second one uses only the information located at specific sites, as determined by the segmentation of the most relevant tissue structures. To reduce computing time, we use a multiresolution pyramidal approach that reaches the best registration transformation in increasing resolution steps. In each step, a subsampled version of the images is used. Both methods rely on a binary image which is a thresholded version of the Sobel gradients of the image (first method) or a set of boundaries manually or automatically obtained that define important histological structures of the sections. Then distance-transform of the binary image is computed. A proximity function is then calculated between the distance image of the image being registered and that of the reference image. The transformation providing a maximum of the proximity function is then used as the starting point of the following step. This is iterated until the registration error lies below a minimum value.

  3. 26 CFR 1.48-2 - New section 38 property.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 1 2010-04-01 2010-04-01 true New section 38 property. 1.48-2 Section 1.48-2... Computing Credit for Investment in Certain Depreciable Property § 1.48-2 New section 38 property. (a) In general. Section 48(b) defines “new section 38 property” as section 38 property— (1) The...

  4. 49 CFR 236.55 - Dead section; maximum length.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Dead section; maximum length. 236.55 Section 236... Instructions: All Systems Track Circuits § 236.55 Dead section; maximum length. Where dead section exceeds 35... over such dead section is less than 35 feet, the maximum length of the dead section shall not...

  5. 49 CFR 236.55 - Dead section; maximum length.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Dead section; maximum length. 236.55 Section 236... Instructions: All Systems Track Circuits § 236.55 Dead section; maximum length. Where dead section exceeds 35... over such dead section is less than 35 feet, the maximum length of the dead section shall not...

  6. 49 CFR 236.55 - Dead section; maximum length.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Dead section; maximum length. 236.55 Section 236... Instructions: All Systems Track Circuits § 236.55 Dead section; maximum length. Where dead section exceeds 35... over such dead section is less than 35 feet, the maximum length of the dead section shall not...

  7. 49 CFR 236.55 - Dead section; maximum length.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Dead section; maximum length. 236.55 Section 236... Instructions: All Systems Track Circuits § 236.55 Dead section; maximum length. Where dead section exceeds 35... over such dead section is less than 35 feet, the maximum length of the dead section shall not...

  8. 49 CFR 236.55 - Dead section; maximum length.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Dead section; maximum length. 236.55 Section 236... Instructions: All Systems Track Circuits § 236.55 Dead section; maximum length. Where dead section exceeds 35... over such dead section is less than 35 feet, the maximum length of the dead section shall not...

  9. 26 CFR 1.48-2 - New section 38 property.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 1 2011-04-01 2009-04-01 true New section 38 property. 1.48-2 Section 1.48-2... Computing Credit for Investment in Certain Depreciable Property § 1.48-2 New section 38 property. (a) In general. Section 48(b) defines “new section 38 property” as section 38 property— (1) The...

  10. Enabling Technologies for Ceramic Hot Section Components

    SciTech Connect

    Venkat Vedula; Tania Bhatia

    2009-04-30

    Silicon-based ceramics are attractive materials for use in gas turbine engine hot sections due to their high temperature mechanical and physical properties as well as lower density than metals. The advantages of utilizing ceramic hot section components include weight reduction, and improved efficiency as well as enhanced power output and lower emissions as a result of reducing or eliminating cooling. Potential gas turbine ceramic components for industrial, commercial and/or military high temperature turbine applications include combustor liners, vanes, rotors, and shrouds. These components require materials that can withstand high temperatures and pressures for long duration under steam-rich environments. For Navy applications, ceramic hot section components have the potential to increase the operation range. The amount of weight reduced by utilizing a lighter gas turbine can be used to increase fuel storage capacity while a more efficient gas turbine consumes less fuel. Both improvements enable a longer operation range for Navy ships and aircraft. Ceramic hot section components will also be beneficial to the Navy's Growth Joint Strike Fighter (JSF) and VAATE (Versatile Affordable Advanced Turbine Engines) initiatives in terms of reduced weight, cooling air savings, and capability/cost index (CCI). For DOE applications, ceramic hot section components provide an avenue to achieve low emissions while improving efficiency. Combustors made of ceramic material can withstand higher wall temperatures and require less cooling air. Ability of the ceramics to withstand high temperatures enables novel combustor designs that have reduced NO{sub x}, smoke and CO levels. In the turbine section, ceramic vanes and blades do not require sophisticated cooling schemes currently used for metal components. The saved cooling air could be used to further improve efficiency and power output. The objectives of this contract were to develop technologies critical for ceramic hot section

  11. 26 CFR 1.1245-6 - Relation of section 1245 to other sections.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...), 336, 337, 501(a), 512(b)(5), and 1039. See section 1245(b) for the extent to which section 1245(a)(1... property for $10,000 to be paid in 10 equal payments of $1,000 each, plus a sufficient amount of...

  12. Slab and sediment melting during subduction initiation: granitoid dykes from the mantle section of the Oman ophiolite

    NASA Astrophysics Data System (ADS)

    Rollinson, Hugh

    2015-09-01

    New geochemical data are presented for a suite of tonalites, granodiorites, trondhjemites and granites intrusive into depleted mantle harzburgites of the Oman-UAE ophiolite. A detailed field, petrological and geochemical examination suggests that these `mantle granitoids' are the product of three processes: (a) the mixing of melts derived from both mafic and metasedimentary sources, (b) interaction with the mantle harzburgite host and (c) the fractional crystallisation of plagioclase, hornblende ± accessory phases. Geochemical data are used to characterise the identity of the protolith(s) by first screening the data for those samples which have experienced fractional crystallisation during emplacement. The resultant `reduced' data set has moderately fractionated REE, with small negative Eu anomalies and fractionated primitive mantle-normalised trace element patterns with high concentrations of fluid mobile elements and lower concentrations of HFS elements and with positive peaks for Rb and Pb and negative troughs for Ba, Nb, Sr and Ti. The character of the protolith was quantified using a melting model based upon a MORB-type basalt similar in composition to the Oman Geotimes lavas and a model using the MUQ (MUd from Queensland) global sediment composition (Kamber et al. Geochim Cosmochim Acta 69:1041-1058, 2005) both with an amphibolite/granulite facies mineralogy. The two compositions bracket the mantle granitoid data set with partial melts of the MORB source yielding trace element compositions lower than the granitoids, whereas melts of the MUQ source yield melts with compositions higher than the granitoids. Mixing of the calculated melt compositions indicates that the measured granitoid compositions represent between 10 and 30 % mixing of a metasedimentary melt into the melt of a mafic source. Current petrological, structural and geochronological data suggest a model for the origin of the Oman ophiolite in which it is formed by spreading above a subduction zone

  13. Proton Pair Production Cross Sections at BESIII

    NASA Astrophysics Data System (ADS)

    Zhou, Xiaorong

    Using data samples collected with the BESIII detector at the BEPCII collider, the Born cross section of e + e - to pbar{p} at 12 center-of-mass energies from 2232.4 to 3671.0 MeV is provided. The corresponding effective electromagnetic form factor of the proton is deduced under the assumption that the electric and magnetic form factors are equal. In addition, the ratio of electric to magnetic form factors are extracted for the data samples with larger statistics. The measured cross sections are in agreement with recent results from BaBar, improving the overall uncertainty by about 30%. The |GE/GM| ratios are close to unity and consistent with BaBar results in the same q2 region.

  14. Extinction cross section of a dielectric strip

    NASA Astrophysics Data System (ADS)

    Dowerah, Subratananda; Chakrabarti, Aloknath

    1988-05-01

    The problem of scattering of a plane electromagnetic wave by a dielectric strip is formulated in terms of an uncoupled system of three-part Wiener-Hopf equations by using a set of approximate boundary conditions derived and utilized recently. The resulting Wiener-Hopf problems are solved approximately for sufficiently large values of the width of the strip by using Jones' method (1964). An analytical formula is derived for the excitation cross section of the strip under consideration from which numerical values are obtained in specific situations and the results are presented graphically. The radar cross section of the strip is also computed for several special circumstances and these are presented separately.

  15. Surface studies on Surveyor 3 tubing sections

    NASA Technical Reports Server (NTRS)

    Buvinger, E. A.

    1972-01-01

    Sections C and E of the unpainted, polished aluminum tubing from the strut of the radar altimeter and Doppler velocity sensor were examined in a transmission electron microscope for micrometeorite damage and ion bombardment. Both sections were contaminated and eroded on one side; it is suggested that these conditions were caused by sandblasting by lunar dust and retrorocket plume contamination during Surveyor 3 landing. Microcraters of different configurations were found on the bright sides of the tubes. Several degrees of violence were involved in the formation of the craters, and the particle size could be responsible for some differences. All micropits found were on the bright areas and data indicate 0.2 hypervelocity impact/sq cm and 2/sq cm for other types of craters. The greatest degree of damage resulted from particle impact and was limited to a maximum depth of 2 microns.

  16. Extendability of parallel sections in vector bundles

    NASA Astrophysics Data System (ADS)

    Kirschner, Tim

    2016-01-01

    I address the following question: Given a differentiable manifold M, what are the open subsets U of M such that, for all vector bundles E over M and all linear connections ∇ on E, any ∇-parallel section in E defined on U extends to a ∇-parallel section in E defined on M? For simply connected manifolds M (among others) I describe the entirety of all such sets U which are, in addition, the complement of a C1 submanifold, boundary allowed, of M. This delivers a partial positive answer to a problem posed by Antonio J. Di Scala and Gianni Manno (2014). Furthermore, in case M is an open submanifold of Rn, n ≥ 2, I prove that the complement of U in M, not required to be a submanifold now, can have arbitrarily large n-dimensional Lebesgue measure.

  17. Aeronautic Instruments. Section II : Altitude Instruments

    NASA Technical Reports Server (NTRS)

    Mears, A H; Henrickson, H B; Brombacher, W G

    1923-01-01

    This report is Section two of a series of reports on aeronautic instruments (Technical Report nos. 125 to 132, inclusive). This section discusses briefly barometric altitude determinations, and describes in detail the principal types of altimeters and barographs used in aeronautics during the recent war. This is followed by a discussion of performance requirements for such instruments and an account of the methods of testing developed by the Bureau of Standards. The report concludes with a brief account of the results of recent investigations. For accurate measurements of altitude, reference must also be made to thermometer readings of atmospheric temperature, since the altitude is not fixed by atmospheric pressure alone. This matter is discussed in connection with barometric altitude determination.

  18. Achondroplasia: anaesthetic challenges for caesarean section.

    PubMed

    Dubiel, L; Scott, G A; Agaram, R; McGrady, E; Duncan, A; Litchfield, K N

    2014-08-01

    Pregnancy in women with achondroplasia presents major challenges for anaesthetists and obstetricians. We report the case of a woman with achondroplasia who underwent general anaesthesia for an elective caesarean section. She was 99cm in height and her condition was further complicated by severe kyphoscoliosis and previous back surgery. She was reviewed in the first trimester at the anaesthetic high-risk clinic. A multidisciplinary team was convened to plan her peripartum care. Because of increasing dyspnoea caesarean section was performed at 32weeks of gestation. She received a general anaesthetic using a modified rapid-sequence technique with remifentanil and rocuronium. The intraoperative period was complicated by desaturation and high airway pressures. The woman's postoperative care was complicated by respiratory compromise requiring high dependency care.

  19. [Intraoperative frozen sections of the thyroid gland].

    PubMed

    Synoracki, S; Ting, S; Siebolts, U; Dralle, H; Koperek, O; Schmid, K W

    2015-07-01

    The goal of evaluation of intraoperative frozen sections of the thyroid gland is to achieve a definitive diagnosis which determines the subsequent surgical management as fast as possible; however, due to the specific methodological situation of thyroid frozen sections evaluation a conclusive diagnosis can be made in only some of the cases. If no conclusive histological diagnosis is possible during the operation, subsequent privileged processing of the specimen allows a final diagnosis at the latest within 48 h in almost all remaining cases. Applying this strategy, both pathologists and surgeons require a high level of communication and knowledge regarding the specific diagnostic and therapeutic peculiarities of thyroid malignancies because different surgical strategies must be employed depending on the histological tumor subtype.

  20. SSCL RFQ-DTL matching section instrumentation

    NASA Astrophysics Data System (ADS)

    Datte, P.; Aiello, R.; Hayworth, M.; Johnson, R.; Jones, A.; McClure, S.; Mills, M.; Martin, D.; Ringwall, A.; Webber, R.; Yao, C.

    1994-10-01

    A description of the SSCL RFQ-DTL Matching Section instrumentation is presented with emphasis on design issues and early instrumentation commissioning results. The H- beam energy through the RFQ-DTL matching section is 2.5 Mev, the beam current is 27 mA with a pulse width of 35 μs. The typical beam diameter is 3 mm. The instrumentation consists of three beam position monitors (BPM), a wire scanner, beam loss monitors (BLM), a slit and collector emittance measurement unit (EMU), a current toroid, and a Faraday cup. The instruments were designed to accommodate high current densities, have a large dynamic range with moderate bandwidths, and fit congested spaces.

  1. Cesarean section in sub-Saharan Africa.

    PubMed

    Harrison, Margo S; Goldenberg, Robert L

    2016-01-01

    Cesarean section is an essential maternal healthcare service. Its role in labor and delivery care in low- and middle-income countries is complex; in many low-resource settings it is underutilized in the most needy of populations and overused by the less needy, without clear methods to ensure that universal access is available. Additionally, even if universal access were available, it is not evident that these countries would have the capacity or the finances to appropriate meet demand for the procedure, or that patients would want to utilize the care. This review summarizes the literature and illustrates the complicated relationship that cesarean section, which is rapidly on the rise around the world, has with individuals, communities, and nations in sub-Saharan Africa.

  2. Universal Parameterization of Absorption Cross Sections

    NASA Technical Reports Server (NTRS)

    Tripathi, R. K.; Cucinotta, Francis A.; Wilson, John W.

    1997-01-01

    This paper presents a simple universal parameterization of total reaction cross sections for any system of colliding nuclei that is valid for the entire energy range from a few AMeV to a few AGeV. The universal picture presented here treats proton-nucleus collision as a special case of nucleus-nucleus collision, where the projectile has charge and mass number of one. The parameters are associated with the physics of the collision system. In general terms, Coulomb interaction modifies cross sections at lower energies, and the effects of Pauli blocking are important at higher energies. The agreement between the calculated and experimental data is better than all earlier published results.

  3. Turbine Engine Hot Section Technology 1986

    NASA Technical Reports Server (NTRS)

    1986-01-01

    The Turbine Engine Hot Section Technology (HOST) Project of the NASA Lewis Research Center sponsored a workshop to discuss current research pertinent to turbine engine durability problems. Presentations were made concerning the hot section environment and the behavior of combustion liners, turbine blades, and turbine vanes. The presentations were divided into six sessions: Instrumentation, Combustion, Turbine Heat Transfer, Structural Analysis, Fatigue and Fracture, and Surface Protection. Topics discussed included modeling of thermal and fluid-flow phenomena, structural analysis, fatigue and fracture, surface protective coatings, constitutive behavior of materials, stress-strain response, and life-prediction methods. Researchers from industry, academia, and government presented results of their work sponsored by the HOST project.

  4. Rotational averaging of multiphoton absorption cross sections

    NASA Astrophysics Data System (ADS)

    Friese, Daniel H.; Beerepoot, Maarten T. P.; Ruud, Kenneth

    2014-11-01

    Rotational averaging of tensors is a crucial step in the calculation of molecular properties in isotropic media. We present a scheme for the rotational averaging of multiphoton absorption cross sections. We extend existing literature on rotational averaging to even-rank tensors of arbitrary order and derive equations that require only the number of photons as input. In particular, we derive the first explicit expressions for the rotational average of five-, six-, and seven-photon absorption cross sections. This work is one of the required steps in making the calculation of these higher-order absorption properties possible. The results can be applied to any even-rank tensor provided linearly polarized light is used.

  5. Rotational averaging of multiphoton absorption cross sections.

    PubMed

    Friese, Daniel H; Beerepoot, Maarten T P; Ruud, Kenneth

    2014-11-28

    Rotational averaging of tensors is a crucial step in the calculation of molecular properties in isotropic media. We present a scheme for the rotational averaging of multiphoton absorption cross sections. We extend existing literature on rotational averaging to even-rank tensors of arbitrary order and derive equations that require only the number of photons as input. In particular, we derive the first explicit expressions for the rotational average of five-, six-, and seven-photon absorption cross sections. This work is one of the required steps in making the calculation of these higher-order absorption properties possible. The results can be applied to any even-rank tensor provided linearly polarized light is used.

  6. Tall sections from non-minimal transformations

    NASA Astrophysics Data System (ADS)

    Morrison, David R.; Park, Daniel S.

    2016-10-01

    In previous work, we have shown that elliptic fibrations with two sections, or Mordell-Weil rank one, can always be mapped birationally to a Weierstrass model of a certain form, namely, the Jacobian of a P^{112} model. Most constructions of elliptically fibered Calabi-Yau manifolds with two sections have been carried out assuming that the image of this birational map was a "minimal" Weierstrass model. In this paper, we show that for some elliptically fibered Calabi-Yau manifolds with Mordell-Weil rank-one, the Jacobian of the P^{112} model is not minimal. Said another way, starting from a Calabi-Yau Weierstrass model, the total space must be blown up (thereby destroying the "Calabi-Yau" property) in order to embed the model into P^{112} . In particular, we show that the elliptic fibrations studied recently by Klevers and Taylor fall into this class of models.

  7. EISA Section 526: Impacts on DESC Supply

    DTIC Science & Technology

    2009-03-01

    molecules, pro- ducing a slate of liquids and solids, including petrochemical products, which then are transported to markets. Refineries are...sands crude are estimated to have life-cycle emissions exceeding those from conventional oil and under some interpretations of section 526, might be...Supplying Refineries , 2003–2006.............................................. 3-2 Figure 3-2. U.S. Operating Refineries by PADD, 2006

  8. Turbine Engine Hot Section Technology, 1984

    NASA Technical Reports Server (NTRS)

    1984-01-01

    Presentations were made concerning the hot section environment and behavior of combustion liners, turbine blades, and waves. The presentations were divided into six sessions: instrumentation, combustion, turbine heat transfer, structural analysis, fatigue and fracture, and surface properties. The principal objective of each session was to disseminate research results to date, along with future plans. Topics discussed included modeling of thermal and fluid flow phenomena, structural analysis, fatigue and fracture, surface protective coatings, constitutive behavior, stress-strain response, and life prediction methods.

  9. Manpower Planning Models. 2. Cross Sectional Models

    DTIC Science & Technology

    1975-03-01

    to investigate various retirement policies. Concepts developed in section 9 are used, and an early retirement scheme is investigated as an...flows between the 15 classes of faculty. We call this CL.. Table II.7 gives the fractional flows after an early retirement scheme has been...one used before early retirement , a is the one used after early retirement , and a. is the case where all appointments are made into non-tenure

  10. {sup 231}Pa photofission cross section

    SciTech Connect

    Soldatov, A.S.; Rudnikov, V.E.; Smirenkin, G.N.

    1995-12-01

    The measurements of the {sup 231}Pa yield and cross section photofission in the energy range 7-9 MeV are presented. These measurements are a continuation of similar measurements performed for the {gamma}-ray energy range 4.8-7 MeV. The entire collection of experimental data which combine the results obtained in the present work and in Ref. 1 was analyzed.

  11. How to Calculate Colourful Cross Sections Efficiently

    SciTech Connect

    Gleisberg, Tanju; Hoeche, Stefan; Krauss, Frank

    2008-09-03

    Different methods for the calculation of cross sections with many QCD particles are compared. To this end, CSW vertex rules, Berends-Giele recursion and Feynman-diagram based techniques are implemented as well as various methods for the treatment of colours and phase space integration. We find that typically there is only a small window of jet multiplicities, where the CSW technique has efficiencies comparable or better than both of the other two methods.

  12. Clean Water Act (excluding Section 404)

    SciTech Connect

    Not Available

    1993-01-15

    This Reference Book contains a current copy of the Clean Water Act (excluding Section 404) and those regulations that implement the statutes and appear to be most relevant to US Department of Energy (DOE) activities. The document is provided to DOE and contractor staff for informational purposes only and should not be interpreted as legal guidance. Updates that include important new requirements will be provided periodically. Questions concerning this Reference Book may be directed to Mark Petts, EH-231 (202/586-2609).

  13. Fusion cross sections measurements with MUSIC

    NASA Astrophysics Data System (ADS)

    Carnelli, P. F. F.; Fernández Niello, J. O.; Almaraz-Calderon, S.; Rehm, K. E.; Albers, M.; Digiovine, B.; Esbensen, H.; Henderson, D.; Jiang, C. L.; Nusair, O.; Palchan-Hazan, T.; Pardo, R. C.; Ugalde, C.; Paul, M.; Alcorta, M.; Bertone, P. F.; Lai, J.; Marley, S. T.

    2014-09-01

    The interaction between exotic nuclei plays an important role for understanding the reaction mechanism of the fusion processes as well as for the energy production in stars. With the advent of radioactive beams new frontiers for fusion reaction studies have become accessible. We have performed the first measurements of the total fusion cross sections in the systems 10 , 14 , 15C + 12C using a newly developed active target-detector system (MUSIC). Comparison of the obtained cross sections with theoretical predictions show a good agreement in the energy region accessible with existing radioactive beams. This type of comparison allows us to calibrate the calculations for cases that cannot be studied in the laboratory with the current experimental capabilities. The high efficiency of this active detector system will allow future measurements with even more neutron-rich isotopes. The interaction between exotic nuclei plays an important role for understanding the reaction mechanism of the fusion processes as well as for the energy production in stars. With the advent of radioactive beams new frontiers for fusion reaction studies have become accessible. We have performed the first measurements of the total fusion cross sections in the systems 10 , 14 , 15C + 12C using a newly developed active target-detector system (MUSIC). Comparison of the obtained cross sections with theoretical predictions show a good agreement in the energy region accessible with existing radioactive beams. This type of comparison allows us to calibrate the calculations for cases that cannot be studied in the laboratory with the current experimental capabilities. The high efficiency of this active detector system will allow future measurements with even more neutron-rich isotopes. This work is supported by the U.S. DOE Office of Nuclear Physics under Contract No. DE-AC02-06CH11357 and the Universidad Nacional de San Martin, Argentina, Grant SJ10/39.

  14. Fusion cross sections and the new dynamics

    SciTech Connect

    Swiatecki, W.J.

    1981-05-01

    The prediction of the need for an extra push over the interaction barrier in order to make the heavier nuclei fuse is made the basis of a simple algebraic theory for the energy-dependence of the fusion cross-section. A comparison with recent experiments promises to provide a quantitative test of the New Dynamics (the theory of macroscopic nuclear shape evolutions based on the one-body dissipation concept).

  15. Inclusive jet cross section measurement at CDF

    SciTech Connect

    Pagliarone, C.

    1996-08-01

    The CDF Collaboration has measured the inclusive jet cross section using 1992-93 collider data at 1.8 TeV. The CDF measurement is in very good agreement with NLO QCD predictions for transverse energies (E{sub T}) below 200 GeV. However, it is systematically higher than NLO QCD predictions for E{sub T} above 200 GeV.

  16. Choice of antibiotic in nonelective cesarean section.

    PubMed Central

    Hager, W D; Rapp, R P; Billeter, M; Bradley, B B

    1991-01-01

    The use of antibiotics for prophylaxis against infection among women undergoing nonelective cesarean section has become the standard of care in the United States. Many different antibiotics have been used successfully. Single-dose regimens administered after the cord is clamped have proven just as effective as multiple-dose regimens. Although the most frequently used class of antibiotics is the cephalosporin family, the single best agent has not been determined. This study was a double-blind, randomized trial in which we compared a narrow-spectrum cephalosporin (cefazolin; n = 63) with an expanded-spectrum cephamycin (cefoxitin; n = 66) and with a broad-spectrum cephalosporin (cefotaxime; n = 60) used as a single-dose prophylaxis in patients undergoing a nonelective cesarean section. Of the 194 patients enrolled in the study, 189 were evaluable. There was no significant difference between the groups in mean age, gravidity, parity, duration of labor, duration of ruptured membranes, number of vaginal examinations, or socioeconomic status (socioeconomic status was defined by third-party coverage). There was no significant difference among the antibiotics in the incidence of immediate or delayed postoperative infections. These data indicate that a less expensive, narrow-spectrum cephalosporin is as effective as more expensive, broader-spectrum cephamycins and cephalosporins as prophylaxis for patients undergoing nonelective cesarean section. PMID:1952848

  17. Major developments in section 404-permitting

    SciTech Connect

    Ahrens, M.; Orr, S.

    2009-06-15

    Mountain coal mining in the Central Appalachians faces increased challenge under the Clean Water Act (CWA). These challenges have included the US Environmental Protection Agency's (EPA) increased involvement in permitting under Section 404 of the CWA; active opposition by environmental groups to Section 404 permits; and proposed federal legislation to reduce the availability of these permits. These recent challenges culminated in a June 11, 2009, Memorandum of Understanding (MoU) between the PEA, the Department of Interior (DoI) and the Army Corps of Engineers (Corps) that will limit the use of general permits for mountaintop coal mining and increase the scrutiny applied to individual permits, while also providing a coordinated approach for reviewing the backlog of pending permit application. By entering into the MoU, the federal agencies aim to reduce the environmental impacts of mountaintop coal mining while increasing certainty and transparency for permit applications. Challenges to Section 404 permitting for mountaintop coal mining are dynamic and new developments occur almost daily. This article provides a snapshot of the current climate.

  18. Perfect zerophase sections, fact or fiction?

    NASA Astrophysics Data System (ADS)

    Marschall, R.

    1989-12-01

    The desired result of an optimum seismic data processing sequence, is a broad band zerophase section, i.e. a bandpassed version of the actual reflectivity function. However, a lot of socalled zerophase-sections still carry a significant phase-error, which is due to unrealistic assumptions in the processing stream in terms of the design of standard processes as for example deconvolution. The two major issues here are the color of the reflectivity series and the misuse of prewhitening. If not properly handled they lead to a phase- and amplitude spectrum bias in the final section, preventing it from being zerophase. Whereas the reflectivity bias leads to a phase error of 50 to 90 deg, the prewhitening bias results in a phase error, which is directly proportional to the logarithm of the actual prewhitening factor. Therefore, if the spike deconvolution process is applied in a time-variant manner, as a consequence a time-variant and usually frequency dependent phase error is introduced! In this article we have made an effort to include sufficient detail to facilitate a clear understanding of the problems involved. The standard processing flow should have a minimum-delay transform and spike deconvolution prestack, followed by a zerophase transform poststack, where the residual wavelet is assumed to be minimum phase.

  19. Quality Quantification of Evaluated Cross Section Covariances

    SciTech Connect

    Varet, S.; Dossantos-Uzarralde, P.

    2015-01-15

    Presently, several methods are used to estimate the covariance matrix of evaluated nuclear cross sections. Because the resulting covariance matrices can be different according to the method used and according to the assumptions of the method, we propose a general and objective approach to quantify the quality of the covariance estimation for evaluated cross sections. The first step consists in defining an objective criterion. The second step is computation of the criterion. In this paper the Kullback-Leibler distance is proposed for the quality quantification of a covariance matrix estimation and its inverse. It is based on the distance to the true covariance matrix. A method based on the bootstrap is presented for the estimation of this criterion, which can be applied with most methods for covariance matrix estimation and without the knowledge of the true covariance matrix. The full approach is illustrated on the {sup 85}Rb nucleus evaluations and the results are then used for a discussion on scoring and Monte Carlo approaches for covariance matrix estimation of the cross section evaluations.

  20. Reconstruction of surfaces from optical sections

    NASA Astrophysics Data System (ADS)

    Gemmill, Jill; Sloan, Kenneth R., Jr.; Curcio, Christine A.

    1992-06-01

    We are working on several projects which have in common the reconstruction of smooth surfaces based on data gathered using optical sections. Data collection is done using a great many techniques -- most of which require manual tracing or labelling by a human trained observer. These include: camera lucida drawings or EM photomicrographs traced on a digitizing tablet, and contours traced directly on a frame-grabbed image. Optical sections are acquired using both confocal microscopy and Nomarski optics. Objects of interest range from individual cells (photoreceptors, ganglion cells), through small collections of cells, to extended regions. Some of the objects are fairly simple (e.g., individual cones in human retina, blob- or sheet-like regions of interest); the information is contained in precise measurements of the geometry. Other objects (e.g., dendritic trees) are more complicated, with most of the information contained in the shape of a branching structure. All of these types of data are processed into common representation which produces as its final product a smooth 3-D surface, with arbitrary branching structure. Common tasks such as filtering hand drawn features, automatic alignment of multiple 2-D sections to create a 3-D volume, surface reconstruction, display and analysis are supported.

  1. ERRATUM: Papers published in incorrect sections

    NASA Astrophysics Data System (ADS)

    2004-04-01

    A number of J. Phys. A: Math. Gen. articles have mistakenly been placed in the wrong subject section in recent issues of the journal. We would like to apologize to the authors of these articles for publishing their papers in the Fluid and Plasma Theory section. The correct section for each article is given below. Statistical Physics Issue 4: Microcanonical entropy for small magnetizations Behringer H 2004 J. Phys. A: Math. Gen. 37 1443 Mathematical Physics Issue 9: On the solution of fractional evolution equations Kilbas A A, Pierantozzi T, Trujillo J J and Vázquez L 2004 J. Phys. A: Math. Gen. 37 3271 Quantum Mechanics and Quantum Information Theory Issue 6: New exactly solvable isospectral partners for PT-symmetric potentials Sinha A and Roy P 2004 J. Phys. A: Math. Gen. 37 2509 Issue 9: Symplectically entangled states and their applications to coding Vourdas A 2004 J. Phys. A: Math. Gen. 37 3305 Classical and Quantum Field Theory Issue 6: Pairing of parafermions of order 2: seniority model Nelson C A 2004 J. Phys. A: Math. Gen. 37 2497 Issue 7: Jordan-Schwinger map, 3D harmonic oscillator constants of motion, and classical and quantum parameters characterizing electromagnetic wave polarization Mota R D, Xicoténcatl M A and Granados V D 2004 J. Phys. A: Math. Gen. 37 2835 Issue 9: Could only fermions be elementary? Lev F M 2004 J. Phys. A: Math. Gen. 37 3285

  2. Absolute np and pp cross section determinations aimed at improving the standard for cross section measurements

    SciTech Connect

    Laptev, Alexander B; Haight, Robert C; Tovesson, Fredrik; Arndt, Richard A; Briscoe, William J; Paris, Mark W; Strakovsky, Igor I; Workman, Ron L

    2010-01-01

    Purpose of present research is a keeping improvement of the standard for cross section measurements of neutron-induced reactions. The cross sections for np and pp scattering below 1000 MeV are determined based on partial-wave analyses (PW As) of nucleon-nucleon scattering data. These cross sections are compared with the most recent ENDF/B-V11.0 and JENDL-4.0 data files, and the Nijmegen PWA. Also a comparison of evaluated data with recent experimental data was made to check a quality of evaluation. Excellent agreement was found between the new experimental data and our PWA predictions.

  3. Absolute np and pp Cross Section Determinations Aimed At Improving The Standard For Cross Section Measurements

    SciTech Connect

    Laptev, A. B.; Haight, R. C.; Tovesson, F.; Arndt, R. A.; Briscoe, W. J.; Paris, M. W.; Strakovsky, I. I.; Workman, R. L.

    2011-06-01

    Purpose of present research is a keeping improvement of the standard for cross section measurements of neutron-induced reactions. The cross sections for np and pp scattering below 1 GeV are determined based on partial-wave analyses (PWAs) of nucleon-nucleon scattering data. These cross sections are compared with the most recent ENDF/B-VII.0 and JENDL-4.0 data files, and the Nijmegen PWA. Also a comparison of evaluated data with recent experimental data was made to check a quality of evaluation. Excellent agreement was found between the new experimental data and our PWA predictions.

  4. Tables of nuclear cross sections for galactic cosmic rays: Absorption cross sections

    NASA Technical Reports Server (NTRS)

    Townsend, L. W.; Wilson, J. W.

    1985-01-01

    A simple but comprehensive theory of nuclear reactions is presented. Extensive tables of nucleon, deuteron, and heavy-ion absorption cross sections over a broad range of energies are generated for use in cosmic ray shielding studies. Numerous comparisons of the calculated values with available experimental data show agreement to within 3 percent for energies above 80 MeV/nucleon and within approximately 10 percent for energies as low as 30 MeV/nucleon. These tables represent the culmination of the development of the absorption cross section formalism and supersede the preliminary absorption cross sections published previously in NASA TN D-8107, NASA TP-2138, and NASA TM-84636.

  5. A&M. TAN607 sections. Section A shows variable roof lines, variable ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    A&M. TAN-607 sections. Section A shows variable roof lines, variable thickness of hot shop shield walls, relationship of subterranean pool to grade. Section B shows relative heights of hot shop floor and its control gallery, position of bridge cranes and manipulator rails. Locomotive service pit. Referent drawing is ID-33-E-158 Above. Ralph M. Parsons 902-3-ANP-607-A 105. Date: December 1952. Approved by INEEL Classification Office for public release. INEEL index code no. 034-0607-00-693-106757 - Idaho National Engineering Laboratory, Test Area North, Scoville, Butte County, ID

  6. Tables of nuclear cross sections for galactic cosmic rays: Absorption cross sections

    NASA Astrophysics Data System (ADS)

    Townsend, L. W.; Wilson, J. W.

    1985-05-01

    A simple but comprehensive theory of nuclear reactions is presented. Extensive tables of nucleon, deuteron, and heavy-ion absorption cross sections over a broad range of energies are generated for use in cosmic ray shielding studies. Numerous comparisons of the calculated values with available experimental data show agreement to within 3 percent for energies above 80 MeV/nucleon and within approximately 10 percent for energies as low as 30 MeV/nucleon. These tables represent the culmination of the development of the absorption cross section formalism and supersede the preliminary absorption cross sections published previously in NASA TN D-8107, NASA TP-2138, and NASA TM-84636.

  7. MTR, TRA603. LONGITUDINAL SECTION SHOWS EAST/WEST SECTION AND PROJECTION OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    MTR, TRA-603. LONGITUDINAL SECTION SHOWS EAST/WEST SECTION AND PROJECTION OF CANAL BEYOND EAST WALL OF BUILDING; PIPE TUNNEL, BULKHEAD LOCATIONS IN CANAL, SWING-OUT ISOLATION GATE, TUNNEL HATCH UNDER ROADWAY; SUB-PILE AND RABBIT CANAL SECTIONS; BALCONY CONTROL AND INSTRUMENT ROOMS; CATWALK, MAIN AND AUXILIARY HOISTS. AIR COMPRESSOR BUILDING (TRA-626) TO THE NORTH. BLAW-KNOX BKC-3150-3-5, 3/1950. INL INDEX NO. 531-0603-00-098-100004, REV. 7. - Idaho National Engineering Laboratory, Test Reactor Area, Materials & Engineering Test Reactors, Scoville, Butte County, ID

  8. STEM mode in the SEM for the analysis of cellular sections prepared by ultramicrotome sectioning

    NASA Astrophysics Data System (ADS)

    Hondow, N.; Harrington, J.; Brydson, R.; Brown, A.

    2012-07-01

    The use of the dual imaging capabilities of a scanning electron microscope fitted with a transmitted electron detector is highlighted in the analysis of samples with importance in the field of nanotoxicology. Cellular uptake of nanomaterials is often examined by transmission electron microscopy of thin sections prepared by ultramicrotome sectioning. Examination by SEM allows for the detection of artefacts caused by sample preparation (eg. nanomaterial pull-out) and the complementary STEM mode permits study of the interaction between nanomaterials and cells. Thin sections of two nanomaterials of importance in nanotoxicology (cadmium selenide quantum dots and single walled carbon nanotubes) are examined using STEM mode in the SEM.

  9. 49 CFR 236.52 - Relayed cut-section.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Relayed cut-section. 236.52 Section 236.52...: All Systems Track Circuits § 236.52 Relayed cut-section. Where relayed cut-section is used in... shall be open and the track circuit shunted when the track relay at such cut-section is in...

  10. 49 CFR 236.52 - Relayed cut-section.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Relayed cut-section. 236.52 Section 236.52...: All Systems Track Circuits § 236.52 Relayed cut-section. Where relayed cut-section is used in... shall be open and the track circuit shunted when the track relay at such cut-section is in...

  11. Speechless after general anaesthesia for caesarean section.

    PubMed

    Narayanan, Aravind; Tawfic, Qutaiba Amir; Kausalya, Rajini; Mohammed, Ahmed K

    2012-06-01

    'Speechless' patient after general anesthesia may be a real horror for the anaesthetist as well as the patient and his relatives. Whatever the cause "functional or organic" the anaesthetist will be under pressure as his patient is not able to talk. Here we report a 40 years old patient who has no history of medical problems and developed aphemia after general anaesthesia for emergency caesarean section with an uneventful intra-operative course. Clinical examinations and investigations failed to reveal any clear cause and the patient returned her ability to talk and discharged home with normal voice.

  12. Nuclear interaction cross sections for proton radiotherapy

    NASA Astrophysics Data System (ADS)

    Chadwick, M. B.; Jones, D. T. L.; Arendse, G. J.; Cowley, A. A.; Richter, W. A.; Lawrie, J. J.; Newman, R. T.; Pilcher, J. V.; Smit, F. D.; Steyn, G. F.; Koen, JW; Stander, JA

    Model calculations of proton-induced nuclear reaction cross sections are described for biologically-important targets. Measurements made at the National Accelerator Centre are presented for double-differential proton, deuteron, triton, helium-3 and alpha particle spectra, for 150 and 200 MeV protons incident on C, N, and O. These data are needed for Monte Carlo simulations of radiation transport and absorbed dose in proton therapy. Data relevant to the use of positron emission tomography to locate the Bragg peak are also described.

  13. Embedment-free section electron microscopy.

    PubMed

    Kondo, Hisatake

    2006-08-01

    Because of potential hindrance of clear viewing in epoxy sections of biological entities having an electron density similar to and lower than that of epoxy resin, the author has stressed that the embedment-free section electron microscopy is necessary for re-examination and/or clarification of biological specimen structures, and that the embedment-free electron microscopy is reliably done by using water-soluble polyethylene glycol (PEG) as a transient embedding media and by critical point-drying of embedment-free sections after de-embedment of PEG by immersion of semithin sections into water. With the embedment-free electron microscopy, the author has presented five major findings: the appearance of microtrabecular lattices with different compactnesses in various cells and in intracellular domains of a given cell, the faithful reproduction of microtrabecula-like strand lattices in vitro with increasing compactnesses from artificial protein solutions at correspondingly increasing concentrations, the appearance of more compact lattices from gelated gelatin than from solated gelatin at a given concentration in vitro, the changeability in compactnesses of the microtrabecular lattices by hyper- or hypotonic shock treatments of cells, and the confined appearance of an intracellular protein in the centripetal demilune of centrifuged ganglion cells which is occupied with the microtrabecular lattices of a substantial compactness. From these findings, several conclusions are drawn: individual strands themselves of the microtrabeculae are meaningless, the appearance of microtrabeculae represents the presence of proteins at a certain concentration, and it is therefore likely that the aqueous cytoplasm is equivalent to the aqueous solution. In addition, it is possible that the appearance of two contiguous lattice domains exhibiting different compactnesses in a given cell may represent the occurrence of a contiguity of sol to gel states of cytoplasmic domains. It is thus

  14. Critical behavior of cross sections at LHC

    NASA Astrophysics Data System (ADS)

    Dremin, I. M.

    2016-07-01

    Recent experimental data on elastic scattering of high energy protons show that the critical regime has been reached at LHC energies. The approach to criticality is demonstrated by increase of the ratio of elastic to total cross sections from ISR to LHC energies. At LHC it reaches the value which can result in principal change of the character of proton interactions. The treatment of new physics of hollowed toroid-like hadrons requires usage of another branch of the unitarity condition. Its further fate is speculated and interpreted with the help of the unitarity condition in combination with present experimental data. The gedanken experiments to distinguish between different possibilities are proposed.

  15. Neutron absorption cross section of uranium-236

    SciTech Connect

    Macklin, R.L.; Alexander, C.W.

    1988-11-01

    U-236 neutron absorption was measured as a function of neutron time-of-flight from 20 eV to 1 MeV. The neutron flux was monitored with a /sup 6/Li glass scintillator. Average cross sections from 3 keV to 1 MeV were derived. Estimated uncertainties were less than 5% below 600 keV and increased to 9.5% at 1 MeV. Resonance parametrization from 20 eV to a few keV remains to be done. 17 refs., 5 figs., 3 tabs.

  16. Cesarean section delivery rates: United States, 1981.

    PubMed Central

    Placek, P J; Taffel, S; Moien, M

    1983-01-01

    The rate of cesarean section delivery in the United States has risen from 4.5 per 100 deliveries in 1965 to 17.9 in 1981. The rate is highest in the Northeast, in hospitals of 500 beds or more, in proprietary hospitals, for Blue Cross as a source of payment, and for mothers aged 35 years and over. The rate is lowest in the North Central region, in hospitals with less than 100 beds, in government hospitals, for self-pay patients, and for mothers under 20 years of age. PMID:6869638

  17. Rectus Abdominis Endometrioma after Caesarean Section

    PubMed Central

    Mishina, Anna; Zaharia, Sergiu; Zastavnitsky, Gheorghe

    2016-01-01

    Isolated rectus abdominis muscle endometriosis is very uncommon with less than 20 case reports being published to date since its first description in 1984 by Amato and Levitt. We report another case of isolated rectus abdominis endometriosis in a 37-year-old patient with a previous caesarian section. We also discuss the diagnostic and treatment particularities in these patients. In our case, the treatment was only surgical and currently the patient is disease-free during the 24-month follow-up. PMID:27999704

  18. Acoustic systems containing curved duct sections

    NASA Technical Reports Server (NTRS)

    Rostafinski, W.

    1975-01-01

    The analysis of waves in bends in acoustical ducting of rectangular cross section is extended to the study of motion near discontinuities. This includes determination of the characteristics of the tangential and radial components of the non-propagating modes. It is established that attenuation of the non-propagating modes strongly depends on frequency and that, in general, the sharper the bend, the less attenuation may be expected. Evaluation of a bend's impedance and of impedance-generated reflections is also presented in detail.

  19. Revision of Aspergillus section Flavipedes: seven new species and proposal of section Jani sect. nov.

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Aspergillus section Flavipedes contains species that are distributed world-wide in soil and rhizosphere, indoor and cave environments, plant endophytes, food contaminants, and occasionally causing human infections. They are producers of many bioactive and extensively studied secondary metabolites an...

  20. A&M. TAN607. Section views of hot shop. Section E shows ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    A&M. TAN-607. Section views of hot shop. Section E shows equipment areas along rear wall. Section F shows storage pool cut along east/west line. Roof trusses, shelves along sides of pool, drain, roof trusses, shelves along sides of pool, drain, and sump. Section G cuts along north/south to show centerline of turntables, manipulator arms, O-man bridge, crane bridge. Referent drawing is ID-33-E-158 above. Ralph M. Parsons 902-3-ANP-607-A 107. Date: December 1952, but as-built in 1982. Approved by INEEL Classification Office for public release. INEEL index code no. 034-0607-00-693-106759 - Idaho National Engineering Laboratory, Test Area North, Scoville, Butte County, ID

  1. Traffic Light Detection Using Conic Section Geometry

    NASA Astrophysics Data System (ADS)

    Hosseinyalmdary, S.; Yilmaz, A.

    2016-06-01

    Traffic lights detection and their state recognition is a crucial task that autonomous vehicles must reliably fulfill. Despite scientific endeavors, it still is an open problem due to the variations of traffic lights and their perception in image form. Unlike previous studies, this paper investigates the use of inaccurate and publicly available GIS databases such as OpenStreetMap. In addition, we are the first to exploit conic section geometry to improve the shape cue of the traffic lights in images. Conic section also enables us to estimate the pose of the traffic lights with respect to the camera. Our approach can detect multiple traffic lights in the scene, it also is able to detect the traffic lights in the absence of prior knowledge, and detect the traffics lights as far as 70 meters. The proposed approach has been evaluated for different scenarios and the results show that the use of stereo cameras significantly improves the accuracy of the traffic lights detection and pose estimation.

  2. Labour and Childbirth After Previous Caesarean Section

    PubMed Central

    Reif, P.; Brezinka, C.; Fischer, T.; Husslein, P.; Lang, U.; Ramoni, A.; Zeisler, H.; Klaritsch, P.

    2016-01-01

    The new expert recommendation from the Austrian Society of Obstetrics and Gynaecology (OEGGG) comprises an interpretation and summary of guidelines from the leading specialist organisations worldwide (RCOG, ACOG, SOGC, CNGOF, WHO, NIH, NICE, UpToDate). In essence it outlines alternatives to the direct pathway to elective repeat caesarean section (ERCS). In so doing it aligns with international trends, according to which a differentiated, individualised clinical approach is recommended that considers benefits and risks to both mother and child, provides detailed counselling and takes the patientʼs wishes into account. In view of good success rates (60–85 %) for vaginal birth after caesarean section (VBAC) the consideration of predictive factors during antenatal birth planning has become increasingly important. This publication provides a compact management recommendation for the majority of standard clinical situations. However it cannot and does not claim to cover all possible scenarios. The consideration of all relevant factors in each individual case, and thus the ultimate decision on mode of delivery, remains the discretion and responsibility of the treating obstetrician. PMID:28017971

  3. Automatic morphometry of nerve histological sections.

    PubMed

    Romero, E; Cuisenaire, O; Denef, J F; Delbeke, J; Macq, B; Veraart, C

    2000-04-15

    A method for the automatic segmentation, recognition and measurement of neuronal myelinated fibers in nerve histological sections is presented. In this method, the fiber parameters i.e. perimeter, area, position of the fiber and myelin sheath thickness are automatically computed. Obliquity of the sections may be taken into account. First, the image is thresholded to provide a coarse classification between myelin and non-myelin pixels. Next, the resulting binary image is further simplified using connected morphological operators. By applying semantic rules to the zonal graph axon candidates are identified. Those are either isolated or still connected. Then, separation of connected fibers is performed by evaluating myelin sheath thickness around each candidate area with an Euclidean distance transformation. Finally, properties of each detected fiber are computed and false positives are removed. The accuracy of the method is assessed by evaluating missed detection, false positive ratio and comparing the results to the manual procedure with sampling. In the evaluated nerve surface, a 0.9% of false positives was found, along with 6.36% of missed detections. The resulting histograms show strong correlation with those obtained by manual measure. The noise introduced by this method is significantly lower than the intrinsic sampling variability. This automatic method constitutes an original tool for morphometrical analysis.

  4. 40 CFR 52.2635 - Original identification of plan section.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Regulations: section 2 (Definitions) (a)(xxx), section 3 (Ambient Standards for Particulate Matter) (a..., section 2 Definitions, subsection 2(a)(xxx)(B) excluding the words “or an equivalent or alternative...

  5. 40 CFR 52.2635 - Original identification of plan section.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Regulations: section 2 (Definitions) (a)(xxx), section 3 (Ambient Standards for Particulate Matter) (a..., section 2 Definitions, subsection 2(a)(xxx)(B) excluding the words “or an equivalent or alternative...

  6. 40 CFR 52.2635 - Original identification of plan section.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Regulations: section 2 (Definitions) (a)(xxx), section 3 (Ambient Standards for Particulate Matter) (a..., section 2 Definitions, subsection 2(a)(xxx)(B) excluding the words “or an equivalent or alternative...

  7. 40 CFR 52.2635 - Original identification of plan section.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Regulations: section 2 (Definitions) (a)(xxx), section 3 (Ambient Standards for Particulate Matter) (a..., section 2 Definitions, subsection 2(a)(xxx)(B) excluding the words “or an equivalent or alternative...

  8. 7. SECTION THROUGH MAIN CORNICE IN AUDITORIUM, VARIOUS DETAILS AND ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    7. SECTION THROUGH MAIN CORNICE IN AUDITORIUM, VARIOUS DETAILS AND SECTIONS FROM AUDITORIUM, AND TRANSVERSE SECTION LOOKING TOWARD REAR OF AUDITORIUM - Ada Theatre, 700 Main Street, Boise, Ada County, ID

  9. 40 CFR 52.677 - Original identification of plan section.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Agencies Affected by Consultation, Section 58.01.01.568 ICC Member Roles in Consultation, Section 58.01.01.569 ICC Member Responsibilities in Consultation, Section 58.01.01.570 General Consultation...

  10. 38 CFR 10.50 - Section 601 and section 603 payments made on first day of calendar quarter.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 1 2010-07-01 2010-07-01 false Section 601 and section 603 payments made on first day of calendar quarter. 10.50 Section 10.50 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS ADJUSTED COMPENSATION Payments § 10.50 Section 601 and section 603 payments made on first day of...

  11. Sectional analysis of reinforced concrete members

    NASA Astrophysics Data System (ADS)

    Bentz, Evan C.

    2000-10-01

    Four easy to use programs have been written that allow for state of the art sectional analysis of reinforced concrete blocks, plates, beams, columns and shells. Unlike most sectional analysis programs, these programs include the effects of shear on behaviour. They are based on the assumption that plane sections remain plane, that there is no transverse clamping stress, and that the biaxial behaviour can be modelled well by the Modified Compression Field Theory (MCFT). Each of these assumptions is shown to be reasonable. The programs are freely available on the World Wide Web at the listed addresses: http://www.ecf.utoronto.ca/ ˜bentz/m2k.htm Membrane-2000 for plates http://www.ecf.utoronto.ca/ ˜bentz/r2k.htm Response-2000 for beams and columns http://www.ecf.utoronto.ca/ ˜bentz/t2k.htm Triax-2000 for 3D blocks http://www.ecf.utoronto.ca/ ˜bentz/s2k.htm Shell-2000: shells with out-of-plane forces This thesis describes the MCFT in detail as implemented in the programs as well as explaining new constitutive relations employed for the behaviour of concrete in tension. The strongest feature of the new programs is the employment of the longitudinal stiffness method, developed for this thesis, which calculates the shear stress profile for a beam or shell much faster and with more numerical stability than the previous state of the art. The programs are verified against a set of experiments as well as against two new shear experiments performed for this thesis. They indicate the programs are good at predicting the behaviour of the elements. Response-2000 is compared to a database of 534 beams and shown to predict shear strengths with an average experimental over predicted shear strength ratio of 1.05 and with a coefficient of variation of 12%. This compares favourably to the ACI code prediction ratios that have an average of 1.20 and a coefficient of variation of 32%. It is suggested that the programs in this thesis represent a good first step in allowing rational

  12. Neutrino Cross Sections at Supernova Energies

    NASA Astrophysics Data System (ADS)

    Scholberg, Kate

    2017-01-01

    Neutrinos with energies between a few and a few tens of MeV are relevant for a number of physics topics. Notably, this is the energy range corresponding to emission of neutrinos from supernovae. In addition, it is relevant for studies of solar, reactor and atmospheric neutrinos, as well as for physics using accelerator-produced neutrinos from pions or radioactive nuclei decaying at rest. Surprisingly, with the exception of interactions on electrons and protons, the interactions of neutrinos with matter in this energy range are quite poorly understood, both theoretically and experimentally. This talk will describe neutrino physics and astrophysics in the supernova-neutrino energy range, the state of knowledge of cross sections on relevant nuclei, and initiatives for experimental measurements.

  13. Lunar Radar Cross Section at Low Frequency

    NASA Technical Reports Server (NTRS)

    Rodriguez, P.; Kennedy, E. J.; Kossey, P.; McCarrick, M.; Kaiser, M. L.; Bougeret, J.-L.; Tokarev, Y. V.

    2002-01-01

    Recent bistatic measurements of the lunar radar cross-section have extended the spectrum to long radio wavelength. We have utilized the HF Active Auroral Research Program (HAARP) radar facility near Gakona, Alaska to transmit high power pulses at 8.075 MHz to the Moon; the echo pulses were received onboard the NASA/WIND spacecraft by the WAVES HF receiver. This lunar radar experiment follows our previous use of earth-based HF radar with satellites to conduct space experiments. The spacecraft was approaching the Moon for a scheduled orbit perturbation when our experiment of 13 September 2001 was conducted. During the two-hour experiment, the radial distance of the satellite from the Moon varied from 28 to 24 Rm, where Rm is in lunar radii.

  14. Potential flow about arbitrary biplane wing sections

    NASA Technical Reports Server (NTRS)

    Garrick, I E

    1937-01-01

    A rigorous treatment is given of the problem of determining the two-dimensional potential flow around arbitrary biplane cellules. The analysis involves the use of elliptic functions and is sufficiently general to include the effects of such elements as the section shapes, the chord ratio, gap, stagger, and decalage, which elements may be specified arbitrarily. The flow problem is resolved by making use of the methods of conformal representation. Thus the solution of the problem of transforming conformally two arbitrary contours into two circles is expressed by a pair of simultaneous integral equations, for which a method of numerical solution is outlined. As an example of the numerical process, the pressure distribution over certain arrangements of the NACA 4412 airfoil in biplane combinations is presented and compared with the monoplane pressure distribution.

  15. Ocean sciences section starts new committee

    NASA Astrophysics Data System (ADS)

    Hickey, Barbara

    To maximize our ability to obtain recognition of Ocean Sciences Section members as Fellows of AGU while minimizing the associated workload, I have, in consultation with our executive committee, established an Ocean Sciences Fellows Committee chaired by the President-Elect to oversee and assist in the nomination process.The committee asks that anyone wanting to make a nomination send a one-page proposal telling why an individual should be a Fellow. Proposals will be reviewed by the commitee, and a number equal to 1½ to 2 times our nomination quota will be chosen for full presentation. Committee members will then work with nominators to select and contact seconders, while the nominator provides the required curriculum vitae and publication list. The committee will assist in any manner possible to insure that the files that go forward are both timely and well documented.

  16. Resistivity sections, upper Arkansas River basin, Colorado

    USGS Publications Warehouse

    Zohdy, Adel A.R.; Hershey, Lloyd A.; Emery, Philip A.; Stanley, William D.

    1971-01-01

    A reconnaissance investigation of ground-water resources in the upper Arkansas River basin from Pueblo to Leadville is being made by the U.S. Geological Survey in cooperation with the Southeastern Colorado Water Conservancy District, and the Colorado Division of Water Resources, Colorado State Engineer. As part of the investigation, surface geophysical electrical resistivity surveys were made during the summer and fall of 1970 near Buena Vista and Westcliffe, Colo. (p1.1). The resistivity surveys were made to verify a previous gravity survey and to help locate areas where ground-water supplies might be developed. This report presents the results of the surveys in the form of two resistivity sections.

  17. Turbine Engine Hot Section Technology (HOST)

    NASA Technical Reports Server (NTRS)

    1983-01-01

    A two-day workshop on the research and plans for turbine engine hot section durability problems was held on October 25 and 26, 1983, at the NASA Lewis Research Center. Presentations were made during six sessions, including structural analysis, fatigue and fracture, surface protective coatings, combustion, turbine heat transfer, and instrumentation, that dealt with the thermal and fluid environment around liners, blades, and vanes, and with material coatings, constitutive behavior, stress-strain response, and life prediction methods for the three components. The principal objective of each session was to disseminate the research results to date, along with future plans, in each of the six areas. Contract and government researchers presented results of their work.

  18. Crack arrest in thick section steel plate

    NASA Astrophysics Data System (ADS)

    Smith, E.

    1983-03-01

    Crack arrest in thick section steel plate is considered in relation to the conditions for crack arrest in a nuclear reactor pressure vessel, when this is subjected to thermal stresses resulting from a hypothetical loss of coolant accident. The results of a theoretical analysis, based primarily on recent developments in quasi-static crack propagation theory, provide further support for the view that the arrest toughness KIa is essentially a material property. However, since the theoretical results also suggest that KIa is reduced by neutron irradiation, and because there is, as yet, no conclusive experimental data on the effect of neutron irradiation on KIa, it is proposed that with highly irradiated steel, instead of using a KIa crack arrest criterion, it is better to use a more conservative criterion, based on the concept that arrest occurs within the vessel at a position where the temperature exceeds that temperature above which the cleavage fracture mode is unable to operate.

  19. NSF section remains in competitiveness bill

    NASA Astrophysics Data System (ADS)

    Lang, Valerie

    The House Space, Science and Technology Committee held mark-ups to consider amendments to HR820, the National Competitiveness Act of 1993 on April 21 and 22. Subtitle B to the bill lays out a role for the National Science Foundation that is perceived by some Earth scientists as shifting the agency's mission from supporting basic research to manufacturing technology and competitiveness (see Eos, April 13). During the mark-up, Roscoe Bartlett (R-Md.) introduced an amendment to strike the entire NSF section, saying that “manufacturing is not a proper function of basic research institutions.” He also mentioned that President Clinton did not have any money in his budget for this initiative.

  20. Absolute photoneutron cross sections of Sm isotopes

    SciTech Connect

    Gheorghe, I.; Glodariu, T.; Utsunomiya, H.; Filipescu, D.; Nyhus, H.-T.; Renstrom, T.; Tesileanu, O.; Shima, T.; Takahisa, K.; Miyamoto, S.

    2015-02-24

    Photoneutron cross sections for seven samarium isotopes, {sup 144}Sm, {sup 147}Sm, {sup 148}Sm, {sup 149}Sm, {sup 150}Sm, {sup 152}Sm and {sup 154}Sm, have been investigated near neutron emission threshold using quasimonochromatic laser-Compton scattering γ-rays produced at the synchrotron radiation facility NewSUBARU. The results are important for nuclear astrophysics calculations and also for probing γ-ray strength functions in the vicinity of neutron threshold. Here we describe the neutron detection system and we discuss the related data analysis and the necessary method improvements for adapting the current experimental method to the working parameters of the future Gamma Beam System of Extreme Light Infrastructure - Nuclear Physics facility.

  1. Apparatus for sectioning demountable semiconductor samples

    DOEpatents

    Sopori, Bhushan L.; Wolf, Abraham

    1984-01-01

    Apparatus for use during polishing and sectioning operations of a ribbon sample is described. The sample holder includes a cylinder having an axially extending sample cavity terminated in a first funnel-shaped opening and a second slot-like opening. A spring-loaded pressure plunger is located adjacent the second opening of the sample cavity for frictional engagement of the sample prior to introduction of a molding medium in the sample cavity. A heat softenable molding medium is inserted in the funnel-shaped opening, to surround the sample. After polishing, the heater is energized to allow draining of the molding medium from the sample cavity. During manual polishing, the second end of the sample holder is inserted in a support ring which provides mechanical support as well as alignment of the sample holder during polishing. A gauge block for measuring the protrusion of a sample beyond the second wall of the holder is also disclosed.

  2. Section 2: The Space of Media Space

    NASA Astrophysics Data System (ADS)

    Harrison, Steve

    We began our study of media space with the social aspects of mediated communication because many in the computer-supported cooperative work (CSCW) realm are familiar with models, theories, frameworks, issues, and design approaches related to sociality. But the first media space research came from another set of traditions — the ordering of space and the making of place. Formally, these are the professional and intellectual provinces of architecture, which are probably remote from the disciplinary backgrounds of most readers. However, remoteness in terms of rhetoric and training does not prevent proximity to everyday human experience. The meaning of media space with respect to human experience is the focus of the articles in this section. The spaces are designed to have meaning, and the meaning of the design derives from spatial experience.

  3. Angle-averaged Compton cross sections

    SciTech Connect

    Nickel, G.H.

    1983-01-01

    The scattering of a photon by an individual free electron is characterized by six quantities: ..cap alpha.. = initial photon energy in units of m/sub 0/c/sup 2/; ..cap alpha../sub s/ = scattered photon energy in units of m/sub 0/c/sup 2/; ..beta.. = initial electron velocity in units of c; phi = angle between photon direction and electron direction in the laboratory frame (LF); theta = polar angle change due to Compton scattering, measured in the electron rest frame (ERF); and tau = azimuthal angle change in the ERF. We present an analytic expression for the average of the Compton cross section over phi, theta, and tau. The lowest order approximation to this equation is reasonably accurate for photons and electrons with energies of many keV.

  4. Top cross section measurement at CDF

    SciTech Connect

    Compostella, Gabriele; /INFN, CNAF /Padua U.

    2010-01-01

    This paper describes the latest measurements of the t{bar t} pair production cross section performed by the CDF Collaboration analyzing p{bar p} collisions at a center-of-mass energy of 1.96 TeV from Fermilab Tevatron, as presented at the XVIII International Workshop on Deep-Inelastic Scattering and Related Subjects. In order to test Standard Model predictions, several analysis methods are explored and all the top decay channels are considered, to better constrain the properties of the top quark and to search for possible sources of new physics affecting the pair production mechanism. Experimental results using an integrated luminosity up to 5.1 fb{sup -1} are presented.

  5. Apparatus for sectioning demountable semiconductor samples

    DOEpatents

    Sopori, B.L.; Wolf, A.

    1984-01-01

    Apparatus for use during polishing and sectioning operations of a ribbon sample is described. The sample holder includes a cylinder having an axially extending sample cavity terminated in a first funnel-shaped opening and a second slot-like opening. A spring-loaded pressure plunger is located adjacent the second opening of the sample cavity for frictional engagement of the sample cavity. A heat softenable molding medium is inserted in the funnel-shaped opening, to surround the sample. After polishing, the heater is energized to allow draining of the molding medium from the sample cavity. During manual polishing, the second end of the sample holder is inserted in a support ring which provides mechanical support as well as alignment of the sample holder during polishing. A gauge block for measuring the protrusion of a sample beyond the second wall of the holder is also disclosed.

  6. GP Section selects Best Student Paper

    NASA Astrophysics Data System (ADS)

    The AGU Geomagnetism and Paleomagnetism (GP) Section has announced its selection of a paper entitled “Multicomponent Magnetization of the Upper Silurian-Lower Devonian Ringerike Sandstone, Adjacent Dikes, and Permian Lavas, Oslo, Norway” as the best GP student paper presented at the 1986 AGU Spring Meeting. The primary author, Dartmouth College Ph.D. candidate David Douglass, was assisted on the paper by a colleague from Lamont-Doherty Geological Observatory. Douglass received his B.S. in geology from the University of California, Los Angeles, in 1980, and in 1984, he received his M.S. in earth sciences at Dartmouth. His current studies examine the paleomagnetism, structure, and sedimentation of several North Atlantic old red sandstone basins.

  7. A&M. TAN607 sections. Section C cuts hot shop on its ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    A&M. TAN-607 sections. Section C cuts hot shop on its 160-foot east/west line. Shows tapered shield wall on east and west facades of building. Relationship between hot shop and special equipment service room, cable tracks for overhead bridge crane, location of well. Concrete roof beams. Section D shows similar east/west of cold assembly room 115 and its bridge crane rail. Shows heavy shielding around special services cubicle and height of viewing windows on east and west sides. Rear of building is shown in relationship to the ridge east of the building. Referent drawing is ID-33-E-158 above. Ralph M. Parsons 902-3-ANP-607-A 106. Date: December 1952. Approved by INEEL Classification Office for public release. INEEL index code no. 034-0607-00-693-106758 - Idaho National Engineering Laboratory, Test Area North, Scoville, Butte County, ID

  8. Postpartum sterilization in cesarean section and non-cesarean section deliveries: United States, 1970-75.

    PubMed Central

    Placek, P J; Taffel, S M; Smith, J C; Maze, J M

    1981-01-01

    National Hospital Discharge Survey data indicate that the overall postpartum sterilization rate per 100 deliveries increased by 75 per cent from 4.0 in 1970 to 7.0 in 1975; by type of delivery, rates rose from 18.0 per 100 cesarean section deliveries and 3.2 for all other deliveries in 1970 to 19.0 and 5.6 respectively in 1975. The South had the highest postpartum sterilization rates overall. Deliveries to older mothers and cesarean section deliveries in hospitals with less than 100 beds were more often characterized by higher sterilization rates. PMID:7294272

  9. Accurate universal parameterization of absorption cross sections II--neutron absorption cross sections

    NASA Technical Reports Server (NTRS)

    Tripathi, R. K.; Wilson, J. W.; Cucinotta, F. A.

    1997-01-01

    A recent parameterization (here after referred as paper I, Ref. [4]) of absorption cross sections for any system of charged ions collisions including proton -nucleus collisions, is extended for neutron-nucleus collisions valid from approximately 1 MeV to a few GeV, thus providing a comprehensive picture of absorption cross sections for any system of collision pair (charged and/or uncharged). The parameters are associated with the physics of the problem. At lower energies, the optical potential at the surface is important and the Pauli operator plays an increasingly important role at intermediate energies. The agreement between the calculated and experimental data is better than earlier published results.

  10. Accurate universal parameterization of absorption cross sections II — neutron absorption cross sections

    NASA Astrophysics Data System (ADS)

    Tripathi, R. K.; Wilson, John W.; Cucinotta, Francis A.

    1997-06-01

    A recent parameterization (here after referred as paper I, Ref. [4]) of absorption cross sections for any system of charged ions collisions including proton -nucleus collisions, is extended for neutron-nucleus collisions valid from ˜ 1 MeV to a few GeV, thus providing a comprehensive picture of absorption cross sections for any system of collision pair (charged and/or uncharged). The parameters are associated with the physics of the problem. At lower energies, the optical potential at the surface is important and the Pauli operator plays an increasingly important role at intermediate energies. The agreement between the calculated and experimental data is better than earlier published results.

  11. IFLA General Conference, 1990. Division of Bibliographic Control: Open Forum; Section of Cataloguing; Section of Bibliography; Section of Classification and Indexing. Booklet 4.

    ERIC Educational Resources Information Center

    International Federation of Library Associations, The Hague (Netherlands).

    The 10 papers in this collection were presented at an open forum and meetings of three sections within the Division of Bibliographic Control: (1) "Review of the Work of the Section on Cataloguing 1989/1990" (Nancy R. John and Inger Cathrine Spangen); (2) "Report from the Section on Classification and Indexing" (Dorothy…

  12. 8 CFR 1212.10 - Section 212(k) waiver.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false Section 212(k) waiver. 1212.10 Section 1212... § 1212.10 Section 212(k) waiver. Any applicant for admission who is in possession of an immigrant visa... director at the port of entry for a waiver under section 212(k) of the Act. If the application for...

  13. 8 CFR 212.10 - Section 212(k) waiver.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false Section 212(k) waiver. 212.10 Section 212... REQUIREMENTS: NONIMMIGRANTS; WAIVERS; ADMISSION OF CERTAIN INADMISSIBLE ALIENS; PAROLE § 212.10 Section 212(k... entry for a waiver under section 212(k) of the Act. If the application for waiver is denied by...

  14. 40 CFR 52.999 - Original identification of plan section.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    .... Air, Chapter 21. Control of Emission of Organic Compounds, Subchapter F. Gasoline Handling, section.... 52.999 Section 52.999 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... identification of plan section. (a) This section identifies the original “The Louisiana Air Control...

  15. 40 CFR 52.999 - Original identification of plan section.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    .... Air, Chapter 21. Control of Emission of Organic Compounds, Subchapter F. Gasoline Handling, section.... 52.999 Section 52.999 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... identification of plan section. (a) This section identifies the original “The Louisiana Air Control...

  16. 14 CFR 252.7 - No-smoking sections.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 4 2013-01-01 2013-01-01 false No-smoking sections. 252.7 Section 252.7... REGULATIONS SMOKING ABOARD AIRCRAFT § 252.7 No-smoking sections. (a) Except as provided in paragraph (b) of... shall provide, at a minimum: (1) A no-smoking section for each class of service; (2) A sufficient...

  17. 14 CFR 252.7 - No-smoking sections.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 4 2011-01-01 2011-01-01 false No-smoking sections. 252.7 Section 252.7... REGULATIONS SMOKING ABOARD AIRCRAFT § 252.7 No-smoking sections. (a) Except as provided in paragraph (b) of... shall provide, at a minimum: (1) A no-smoking section for each class of service; (2) A sufficient...

  18. 14 CFR 252.7 - No-smoking sections.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 4 2010-01-01 2010-01-01 false No-smoking sections. 252.7 Section 252.7... REGULATIONS SMOKING ABOARD AIRCRAFT § 252.7 No-smoking sections. (a) Except as provided in paragraph (b) of... shall provide, at a minimum: (1) A no-smoking section for each class of service; (2) A sufficient...

  19. 14 CFR 252.7 - No-smoking sections.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 4 2012-01-01 2012-01-01 false No-smoking sections. 252.7 Section 252.7... REGULATIONS SMOKING ABOARD AIRCRAFT § 252.7 No-smoking sections. (a) Except as provided in paragraph (b) of... shall provide, at a minimum: (1) A no-smoking section for each class of service; (2) A sufficient...

  20. 14 CFR 252.7 - No-smoking sections.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 4 2014-01-01 2014-01-01 false No-smoking sections. 252.7 Section 252.7... REGULATIONS SMOKING ABOARD AIRCRAFT § 252.7 No-smoking sections. (a) Except as provided in paragraph (b) of... shall provide, at a minimum: (1) A no-smoking section for each class of service; (2) A sufficient...

  1. 49 CFR 236.737 - Cut-section, relayed.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Cut-section, relayed. 236.737 Section 236.737..., MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Definitions § 236.737 Cut-section, relayed. A cut-section where the energy for one track circuit is supplied through front...

  2. 49 CFR 236.737 - Cut-section, relayed.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Cut-section, relayed. 236.737 Section 236.737..., MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Definitions § 236.737 Cut-section, relayed. A cut-section where the energy for one track circuit is supplied through front...

  3. 1 CFR 6.4 - Monthly list of sections affected.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 1 General Provisions 1 2011-01-01 2011-01-01 false Monthly list of sections affected. 6.4 Section 6.4 General Provisions ADMINISTRATIVE COMMITTEE OF THE FEDERAL REGISTER THE FEDERAL REGISTER INDEXES AND ANCILLARIES § 6.4 Monthly list of sections affected. A monthly list of sections of the Code...

  4. 1 CFR 6.4 - Monthly list of sections affected.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 1 General Provisions 1 2010-01-01 2010-01-01 false Monthly list of sections affected. 6.4 Section 6.4 General Provisions ADMINISTRATIVE COMMITTEE OF THE FEDERAL REGISTER THE FEDERAL REGISTER INDEXES AND ANCILLARIES § 6.4 Monthly list of sections affected. A monthly list of sections of the Code...

  5. 26 CFR 1.306-3 - Section 306 stock defined.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 4 2013-04-01 2013-04-01 false Section 306 stock defined. 1.306-3 Section 1.306... (CONTINUED) INCOME TAXES (CONTINUED) Effects on Recipients § 1.306-3 Section 306 stock defined. (a) For the purpose of subchapter C, chapter 1 of the code, the term section 306 stock means stock which meets...

  6. 26 CFR 1.306-3 - Section 306 stock defined.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 26 Internal Revenue 4 2012-04-01 2012-04-01 false Section 306 stock defined. 1.306-3 Section 1.306... (CONTINUED) INCOME TAXES (Continued) Effects on Recipients § 1.306-3 Section 306 stock defined. (a) For the purpose of subchapter C, chapter 1 of the code, the term section 306 stock means stock which meets...

  7. 26 CFR 1.306-3 - Section 306 stock defined.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 4 2011-04-01 2011-04-01 false Section 306 stock defined. 1.306-3 Section 1.306... (CONTINUED) INCOME TAXES Effects on Recipients § 1.306-3 Section 306 stock defined. (a) For the purpose of subchapter C, chapter 1 of the code, the term section 306 stock means stock which meets the requirements...

  8. 26 CFR 1.306-3 - Section 306 stock defined.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 4 2014-04-01 2014-04-01 false Section 306 stock defined. 1.306-3 Section 1.306... (CONTINUED) INCOME TAXES (CONTINUED) Effects on Recipients § 1.306-3 Section 306 stock defined. (a) For the purpose of subchapter C, chapter 1 of the code, the term section 306 stock means stock which meets...

  9. 28 CFR 51.8 - Section 3 coverage.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Section 3 coverage. 51.8 Section 51.8 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) PROCEDURES FOR THE ADMINISTRATION OF SECTION 5 OF THE VOTING RIGHTS ACT OF 1965, AS AMENDED General Provisions § 51.8 Section 3 coverage. Under...

  10. Pure Number Curriculum Guide, Sections A, B, and C.

    ERIC Educational Resources Information Center

    Victoria Education Dept. (Australia).

    Included are three curriculum guides, Section A, Section B, and Section C, which are concerned with the development of number concepts in elementary school, through the use of Cuisenaire rods. Small group and individual instruction are encouraged, and many suitable learning activities are suggested. Section A is introductory and covers number…

  11. Pure Number Curriculum Guide, Sections D and E.

    ERIC Educational Resources Information Center

    Victoria Education Dept. (Australia).

    Included are two curriculum guides, Section D and Section E, which continue instruction of the three guides in SE 012 723. Counting (by ones, by twos, by threes, ..., by twelves) is extended to 144 in Section D and to 1000 in Section E. The creation and manipulation of more complex equations are taught, including the notion of substitution. The…

  12. VMT forecasting and tracking guidance, Section 187

    SciTech Connect

    Not Available

    1992-01-01

    The guidance is required by Section 187 (a) of the Clean Air Act Amendments of 1990. It offers the Environmental Protection Agency's (EPA's) recommendations on how to forecast and track vehicle miles traveled (VMT) in Moderate and Serious carbon monoxide (CO) non-attainment areas with design values greater than 12.7 ppm at the time of classification. The purpose of the guidance is to help states prepare State Implementation Plan (SIP) revisions that EPA can readily propose to approve as meeting the requirements of the Clean Air Act Amendments. If a state adheres to the guidance, EPA will propose approval of its SIP. A state intending to depart from the guidance, however, should show that the alternative approach it proposes is technically sound and adequate to meet the requirements of the Clean Air Act Amendments. EPA will review SIP submittals from such states on a case-by-case basis to determine whether they do in fact comply with the Clean Air Act Amendment requirements. States are encouraged to obtain EPA approval before using methods other than those specified in the guidance, in order to avoid later problems.

  13. Supercritical wing sections 2, volume 108

    NASA Technical Reports Server (NTRS)

    Bauer, F.; Garabedian, P.; Korn, D.; Jameson, A.; Beckmann, M. (Editor); Kuenzi, H. P. (Editor)

    1975-01-01

    A mathematical theory for the design and analysis of supercritical wing sections was previously presented. Examples and computer programs showing how this method works were included. The work on transonics is presented in a more definitive form. For design, a better model of the trailing edge is introduced which should eliminate a loss of fifteen or twenty percent in lift experienced with previous heavily aft loaded models, which is attributed to boundary layer separation. How drag creep can be reduced at off-design conditions is indicated. A rotated finite difference scheme is presented that enables the application of Murman's method of analysis in more or less arbitrary curvilinear coordinate systems. This allows the use of supersonic as well as subsonic free stream Mach numbers and to capture shock waves as far back on an airfoil as desired. Moreover, it leads to an effective three dimensional program for the computation of transonic flow past an oblique wing. In the case of two dimensional flow, the method is extended to take into account the displacement thickness computed by a semi-empirical turbulent boundary layer correction.

  14. SARA title III, section 313 - looking ahead

    SciTech Connect

    Fisher, P.W.; Currie, R.M.; Churchill, R.J.

    1988-11-01

    On July 1, 1988, thousands of plants throughout the United States were required to submit R Forms presenting estimates of releases to the atmosphere, waste-water, and solid waste during 1987 of toxic chemicals listed under Section 313 of the Superfund Amendments and Reauthorization Act (SARA) of 1986. Because this is an annual reporting requirement, the paper will present recommendations, based upon Dames and Moore's experience in developing toxic chemical releases for a wide variety of facilities, to improve the accuracy of these release estimates for future submissions. These recommendations will be centered on ways in which each plant can assure, organize, and collect appropriate data with which to make the toxic chemical release estimates. In addition, the paper will recommend and provide supporting rationale for each plant's assessing the impact on air quality of the atmospheric releases reported on the R Forms. While this is not required, it is information which is invaluable in communicating to the public the impact of these releases and in responding to inquiries from the press and environmental groups. In undertaking this assessment, a step-by-step procedure beginning with low coast screening dispersion modeling analyses will be presented.

  15. In Orbit Measurement of Solar Section Properties

    NASA Astrophysics Data System (ADS)

    Alcindor, Peter; Kimber, Rick; Smyth, Rebecca; Ruf, Daniel; Tonicello, Ferdinando

    2014-08-01

    A novel opportunity to characterise a solar section Voltage and Current (V and I) versus temperature while in orbit is described using a Buck regulating Battery Charge Regulator (BCR) (capable only of operating at input voltages above the bus voltage) and the Buck Boost Regulator (B2R), developed under ESA contract 22727/09/NL/LvH.A verification test using the Buck (BCR) system is presented. Measurements are limited to input voltages above the bus voltage. However, modifications are proposed whereby the complete V and I characteristics can be obtained. Several drawbacks to this approach are discussed.Thanks to the European Space Agency "Study of new power architectures for low Earth orbit missions" carried out by Astrium Satellites an alternative approach is described requiring no in-orbit reconfiguration. The B2R, only requires modification to the computer control interface to facilitate solar circuit measurements from Voc to virtual Isc levels. A flight opportunity is proposed onboard a future SSTL Technology Demonstration Spacecraft (TDS).

  16. Light and harmonicity: the golden section

    NASA Astrophysics Data System (ADS)

    Raftopoulos, Dionysios G.

    2015-09-01

    Adhering to Werner Heisenberg's and to the school of Copenhagen's physical philosophy we introduce the localized observer as an absolutely necessary element of a consistent physical description of nature. Thus we have synthesized the theory of the harmonicity of the field of light, which attempts to present a new approach to the events in the human perceptible space. It is an axiomatic theory based on the selection of the projective space as the geometrical space of choice, while its first fundamental hypothesis is none other than special relativity theory's second hypothesis, properly modified. The result is that all our observations and measurements of physical entities always refer not to their present state but rather to a previous one, a conclusion evocative of the "shadows" paradigm in Plato's cave allegory. In the kinematics of a material point this previous state we call "conjugate position", which has been called the "retarded position" by Richard Feynman. We prove that the relation of the present position with its conjugate is ruled by a harmonic tetrad. Thus the relation of the elements of the geometrical (noetic) and the perceptible space is harmonic. In this work we show a consequence of this harmonic relation: the golden section.

  17. Inter-sectional hybrids obtained from reciprocal crosses between Begonia semperflorens (section Begonia) and B. 'Orange Rubra' (section Gaerdita × section Pritzelia).

    PubMed

    Chen, Yen-Ming; Mii, Masahiro

    2012-06-01

    Inter-sectional hybrids were successfully obtained by the reciprocal crosses between 11 cultivars (including 6 diploids and 5 tetraploids) of Begonia semperflorens (SS & SSSS genomes) and B. 'Orange Rubra' (RR genome) with the aid of in vitro culture of mature or immature seeds on MS medium containing 0.1 mg l(-1) α-naphthylacetic acid, 0.1 mg l(-1) 6-benzyladenine, 10 mg l(-1) gibberellic acid, 30 g l(-1) sucrose and 2.5 g l(-1) gellan gum. Embryo rescue as ovary culture with immature seeds 12(th)-16(th) day after pollination (DAP) generally gave higher efficiency of plantlet formation, but in some cross combinations, culture of mature seeds (30 DAP) resulted in higher yield of plantlets. Flow cytometric analysis revealed that they were consisted of the plants with various genomic combinations (RS, RR, RSS, RRS, RRSS and RRRRSS) as estimated by the DNA contents of both parents. Hybridity of these plants with various genomic combinations including RR was confirmed by random amplified polymorphic DNA analysis. These results suggested that unreduced gamete formation and spontaneous chromosome doubling were involved in the hybrid formation of various ploidy levels and genomic combinations. These hybrids showed various levels of intermediate traits between both parents according to the genomic compositions, and some of them had desirable characters of both parents.

  18. APPARATUS FOR MEASURING TOTAL NEUTRON CROSS SECTIONS

    DOEpatents

    Cranberg, L.

    1959-10-13

    An apparatus is described for measuring high-resolution total neutron cross sections at high counting rate in the range above 50-kev neutron energy. The pulsed-beam time-of-flight technique is used to identify the neutrons of interest which are produced in the target of an electrostatic accelerator. Energy modulation of the accelerator . makes it possible to make observations at 100 energy points simultaneously. 761O An apparatus is described for monitoring the proton resonance of a liquid which is particulariy useful in the continuous purity analysis of heavy water. A hollow shell with parallel sides defines a meander chamber positioned within a uniform magnetic fieid. The liquid passes through an inlet at the outer edge of the chamber and through a spiral channel to the central region of the chamber where an outlet tube extends into the chamber perpendicular to the magnetic field. The radiofrequency energy for the monitor is coupled to a coil positioned coaxially with the outlet tube at its entrance point within the chamber. The improvement lies in the compact mechanical arrangement of the monitor unit whereby the liquid under analysis is subjected to the same magnetic field in the storage and sensing areas, and the entire unit is shielded from external electrostatic influences.

  19. Normalization of experimental electron cross sections.

    NASA Astrophysics Data System (ADS)

    Avdonina, N.; Felfli, Z.; Msezane, A. Z.

    1997-10-01

    Absolute experimental electron-impact differential cross sections (DCSs) can be obtained through an extrapolation of the relative generalized oscillator strength (GOS) values at some given impact energy E to zero momentum transfer squared K^2, the optical oscillator strength (OOS) [1]. We propose to normalize the relative experimental DCS data to the corresponding OOS value by extrapolating the GOS to K^2 = 0 without involving the nonphysical region. This is possible only by simultaneously increasing E and decreasing K^2 so that K^2 = 0 corresponds to E = ∞. Thus is avoided a divergence of fracd(GOS)d(K^2) at K^2 = 0 [2]. Another advantage of our method is that, over a wide range of small K^2 values the contribution of higher order terms of the Born series to the GOS function is negligible, contrary to the constant E case in which even order K^2 terms are non-Born [2]. Thus first Born approximation can be used to normalize relative experimental DCSs to the OOS. This method is applicable to both the excitation and ionization of atomic and molecular targets by electron impact. The latter case generalizes the method of ref. [3]. ^*Supported by AFOSR, NSF and DoE Div. of Chemical Sciences, OBES. ^1 E. N. Lassettre et al., J. Chem. Phys \\underline50, (1829) ^2 W. M. Huo, J. Chem. Phys \\underline71, 1593 (1979) ^3 A. Saenz, W Weyrich and P. Froelich, J. Phys. B \\underline29, 97 (1996)

  20. Spectroscopy and Photoabsorption Cross Sections of FNO

    NASA Astrophysics Data System (ADS)

    Burley, J. D.; Miller, C. E.; Johnston, H. S.

    1993-04-01

    The spectroscopy and photoabsorption cross sections of nitrosyl fluoride are investigated in the spectral region 350-180 nm. Results for 350-250 nm are in good agreement with the initial measurements of Johnston and Bertin and later measurements from Solgadi and Flament and Huber et al. The spectrum is assigned to a series of vibrational progressions which arise from (0, 0, 0)″ and involve excitation of the ν' 1 mode. Excitations to ( n, 0, 0)' and ( n, 0, 1)' make up the bulk of the spectrum, with promotions to ( n, 1, 0)', ( n, 0, 2)', and ( n, 1, 2)' becoming dominant at higher energies. Analysis of the spectrum results in values of ν' 1 = 1096 cm -1, ν' 2 = 480cm -1 and ν' 3 = 349 cm -1 for the excited state FNO frequencies. The experimental basis for the assignment of ν' 1 and ν' 3 is distinctly stronger than that for ν' 2. Below 250 nm, a broad, featureless continuum absorption is observed, which rises in intensity from σ = 1.77 × 10 -20cm 2 at 245 nm to 5.24 × 10 -19cm 2 at 180 nm.

  1. Cross-sectional imaging in Crohn disease.

    PubMed

    Furukawa, Akira; Saotome, Takao; Yamasaki, Michio; Maeda, Kiyosumi; Nitta, Norihisa; Takahashi, Masashi; Tsujikawa, Tomoyuki; Fujiyama, Yoshihide; Murata, Kiyoshi; Sakamoto, Tsutomu

    2004-01-01

    The role of cross-sectional imaging in the diagnosis of Crohn disease has expanded with recent technologic advances in computed tomography (CT) and magnetic resonance (MR) imaging that allow rapid acquisition of high-resolution images of the intestines. To acquire images of diagnostic quality, administration of a fairly large amount of intraluminal contrast agent prior to examination and scanning with intravenous contrast material injection are necessary. Both CT and MR imaging are reported to have a sensitivity of over 95% for the detection of Crohn disease; however, they may not allow early diagnosis. Colonoscopy and conventional enteroclysis studies are indicated for patients with early-stage disease. At more advanced stages, CT and MR imaging can help identify and characterize pathologically altered bowel segments as well as extraluminal lesions (eg, fistulas, abscesses, fibrofatty proliferation, increased vascularity of the vasa recta, mesenteric lymphadenopathy). These modalities can also clearly depict inflammatory lesion activity and conditions that require elective gastrointestinal surgery, thereby aiding in treatment planning. In the clinical setting, CT is currently the imaging modality of choice at most institutions; however, it is expected that MR imaging will soon play a comparable role. CT or MR imaging should be included in a comprehensive evaluation of patients with Crohn disease, along with conventional imaging and clinical and laboratory tests.

  2. Inter-sectional hybrids obtained from reciprocal crosses between Begonia semperflorens (section Begonia) and B. ‘Orange Rubra’ (section Gaerdita × section Pritzelia)

    PubMed Central

    Chen, Yen-Ming; Mii, Masahiro

    2012-01-01

    Inter-sectional hybrids were successfully obtained by the reciprocal crosses between 11 cultivars (including 6 diploids and 5 tetraploids) of Begonia semperflorens (SS & SSSS genomes) and B. ‘Orange Rubra’ (RR genome) with the aid of in vitro culture of mature or immature seeds on MS medium containing 0.1 mg l−1 α-naphthylacetic acid, 0.1 mg l−1 6-benzyladenine, 10 mg l−1 gibberellic acid, 30 g l−1 sucrose and 2.5 g l−1 gellan gum. Embryo rescue as ovary culture with immature seeds 12th–16th day after pollination (DAP) generally gave higher efficiency of plantlet formation, but in some cross combinations, culture of mature seeds (30 DAP) resulted in higher yield of plantlets. Flow cytometric analysis revealed that they were consisted of the plants with various genomic combinations (RS, RR, RSS, RRS, RRSS and RRRRSS) as estimated by the DNA contents of both parents. Hybridity of these plants with various genomic combinations including RR was confirmed by random amplified polymorphic DNA analysis. These results suggested that unreduced gamete formation and spontaneous chromosome doubling were involved in the hybrid formation of various ploidy levels and genomic combinations. These hybrids showed various levels of intermediate traits between both parents according to the genomic compositions, and some of them had desirable characters of both parents. PMID:23136522

  3. Abdominal sarcoidosis: cross-sectional imaging findings

    PubMed Central

    Gezer, Naciye Sinem; Başara, Işıl; Altay, Canan; Harman, Mustafa; Rocher, Laurence; Karabulut, Nevzat; Seçil, Mustafa

    2015-01-01

    Sarcoidosis is a multisystem inflammatory disease of unknown etiology. The lungs and the lymphoid system are the most commonly involved organs. Extrapulmonary involvement is reported in 30% of patients, and the abdomen is the most common extrapulmonary site with a frequency of 50%–70%. Although intra-abdominal sarcoidosis is usually asymptomatic, its presence may affect the prognosis and treatment options. The lesions are less characteristic and may mimick neoplastic or infectious diseases such as lymphoma, diffuse metastasis, and granulomatous inflammation. The liver and spleen are the most common abdominal sites of involvement. Sarcoidosis of the gastrointestinal system, pancreas, and kidneys are extremely rare. Adenopathy which is most commonly found in the porta hepatis, exudative ascites, and multiple granulomatous nodules studding the peritoneum are the reported manifestations of abdominal sarcoidosis. Since abdominal sarcoidosis is less common and long-standing, unrecognized disease can result in significant morbidity and mortality. Imaging contributes to diagnosis and management of intra-abdominal sarcoidosis. In this report we reviewed the cross-sectional imaging findings of hepatobiliary, gastrointestinal, and genitourinary sarcoidosis. PMID:25512071

  4. [Fast neutron cross section measurements]. Progress report

    SciTech Connect

    Knoll, G.F.

    1992-10-26

    From its inception, the Nuclear Data Project at the University of Michigan has concentrated on two major objectives: (1) to carry out carefully controlled nuclear measurements of the highest possible reliability in support of the national nuclear data program, and (2) to provide an educational opportunity for students with interests in experimental nuclear science. The project has undergone a successful transition from a primary dependence on our photoneutron laboratory to one in which our current research is entirely based on a unique pulsed 14 MeV fast neutron facility. The new experimental facility is unique in its ability to provide nanosecond bursts of 14 MeV neutrons under conditions that are ``clean`` and as scatter-free as possible, and is the only one of its type currently in operation in the United States. It has been designed and put into operation primarily by graduate students, and has met or exceeded all of its important initial performance goals. We have reached the point of its routine operation, and most of the data are now in hand that will serve as the basis for the first two doctoral dissertations to be written by participating graduate students. Our initial results on double differential neutron cross sections will be presented at the May 1993 Fusion Reactor Technology Workshop. We are pleased to report that, after investing several years in equipment assembly and optimization, the project has now entered its ``data production`` phase.

  5. 26 CFR 1.1502-93 - Consolidated section 382 limitation (or subgroup section 382 limitation).

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...), capital contributions between members of the loss group (or loss subgroup) (or a contribution of stock to...) for any post-change year is an amount equal to the value of the loss group (or loss subgroup), as... gains of a loss group (or loss subgroup), see paragraph (c)(2) of this section. (2) Coordination...

  6. Importance of transesophageal echocardiography in peripartum cardiomyopathy undergoing lower section cesarean section under regional anesthesia.

    PubMed

    Kapoor, Poonam Malhotra; Goyal, Sameer; Irpachi, Kalpana; Smita, Barya

    2014-07-01

    Peripartum cardiomyopathy is a relatively rare but life threatening disease. The etiology and pathogenesis of peripartum cardiomyopathy is generally centered upon viral and autoimmune mechanism. This case report describes the anesthetic management of a patient with term pregnancy suffering from dilated peripartum cardiomyopathy planned for cesarean section, successfully managed with epidural anesthesia after precipitate labour.

  7. 29 CFR 553.201 - Statutory provisions: section 7(k).

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Statutory provisions: section 7(k). 553.201 Section 553.201...: section 7(k). (a) Section 7(k) of the Act provides a partial overtime pay exemption for fire protection.... (b) As specified in §§ 553.20 through 553.28 of subpart A, workers employed under section 7(k)...

  8. Averaging cross section data so we can fit it

    SciTech Connect

    Brown, D.

    2014-10-23

    The 56Fe cross section we are interested in have a lot of fluctuations. We would like to fit the average of the cross section with cross sections calculated within EMPIRE. EMPIRE is a Hauser-Feshbach theory based nuclear reaction code, requires cross sections to be smoothed using a Lorentzian profile. The plan is to fit EMPIRE to these cross sections in the fast region (say above 500 keV).

  9. 30 CFR 75.829 - Tramming continuous mining machines in and out of the mine and from section to section.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Tramming continuous mining machines in and out... continuous mining machines in and out of the mine and from section to section. (a) Conditions of use. Tramming the continuous mining machine in and out of the mine and from section to section must be done...

  10. 30 CFR 75.829 - Tramming continuous mining machines in and out of the mine and from section to section.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Tramming continuous mining machines in and out... continuous mining machines in and out of the mine and from section to section. (a) Conditions of use. Tramming the continuous mining machine in and out of the mine and from section to section must be done...

  11. 30 CFR 75.829 - Tramming continuous mining machines in and out of the mine and from section to section.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Tramming continuous mining machines in and out... continuous mining machines in and out of the mine and from section to section. (a) Conditions of use. Tramming the continuous mining machine in and out of the mine and from section to section must be done...

  12. 30 CFR 75.829 - Tramming continuous mining machines in and out of the mine and from section to section.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Tramming continuous mining machines in and out... continuous mining machines in and out of the mine and from section to section. (a) Conditions of use. Tramming the continuous mining machine in and out of the mine and from section to section must be done...

  13. 30 CFR 75.829 - Tramming continuous mining machines in and out of the mine and from section to section.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Tramming continuous mining machines in and out... continuous mining machines in and out of the mine and from section to section. (a) Conditions of use. Tramming the continuous mining machine in and out of the mine and from section to section must be done...

  14. 75 FR 34421 - Notice of Funds Availability for Section 514 Farm Labor Housing Loans and Section 516 Farm Labor...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-17

    ... Rural Housing Service Notice of Funds Availability for Section 514 Farm Labor Housing Loans and Section 516 Farm Labor Housing Grants for Off-Farm Housing for Fiscal Year (FY) 2010 AGENCY: Rural Housing...-applications for section 514 Farm Labor Housing (FLH) loans and section 516 FLH grants for the construction...

  15. METAL MEDIA FILTERS, AG-1 SECTION FI

    SciTech Connect

    Adamson, D.

    2012-05-23

    One application of metal media filters is in various nuclear air cleaning processes including applications for protecting workers, the public and the environment from hazardous and radioactive particles. To support this application the development of the ASME AG-1 FI Standard on Metal Media has been under way for more than ten years. Development of the proposed section has required resolving several difficult issues associated with operating conditions (media velocity, pressure drop, etc.), qualification testing, and quality acceptance testing. Performance characteristics of metal media are dramatically different than the glass fiber media with respect to parameters like differential pressures, operating temperatures, media strength, etc. These differences make existing data for a glass fiber media inadequate for qualifying a metal media filter for AG-1. In the past much work has been conducted on metal media filters at facilities such as Lawrence Livermore National Laboratory (LLNL) and Savannah River National Laboratory (SRNL) to qualify the media as High Efficiency Particulate Air (HEPA) Filters. Particle retention testing has been conducted at Oak Ridge Filter Test Facility and at Air Techniques International (ATI) to prove that the metal media meets or exceeds the 99.97% particle retention required for a HEPA Filter. Even with his testing, data was lacking to complete an AG-1 FI Standard on metal media. With funding secured by Mississippi State University (MSU) from National Nuclear Security Administration (NNSA), a research test stand is being designed and fabricated at MSU's Institute for Clean Energy Technology (ICET) Facility to obtain qualification data on metal media. This in turn will support required data needed for the FI Standard. The paper will discuss in detail how the test stand at MSU will obtain the necessary data to complete the FI Standard.

  16. Special section on biomimetics of movement.

    PubMed

    Carpi, Federico; Erb, Rainer; Jeronimidis, George

    2011-12-01

    Movement in biology is an essential aspect of survival for many organisms, animals and plants. Implementing movement efficiently to meet specific needs is a key attribute of natural living systems, and can provide ideas for man-made developments. If we had to find a subtitle able to essentially convey the aim of this special section, it could read as follows: 'taking inspiration from nature for new materials, actuators, structures and controls for systems that move'. Our world is characterized by a huge variety of technical, engineering systems that move. They surround us in countless products that integrate actuators for different kinds of purposes. Basically, any kind of mechatronic system, such as those used for consumer products, machines, vehicles, industrial systems, robots, etc, is based on one or more devices that move, according to different implementations and motion ranges, often in response to external and internal stimuli. Despite this, technical solutions to develop systems that move do not evolve very quickly as they rely on traditional and well consolidated actuation technologies, which are implemented according to known architectures and with established materials. This fact limits our capability to overcome challenges related to the needs continuously raised by new fields of application, either at small or at large scales. Biomimetics-based approaches may provide innovative thinking and technologies in the field, taking inspiration from nature for smart and effective solutions. In an effort to disseminate current advances in this field, this special section collects some papers that cover different topics. A brief synopsis of the content of each contribution is presented below. The first paper, by Lienhard et al [1], deals with bioinspiration for the realization of structural parts in systems that passively move. It presents a bioinspired hingeless flapping mechanism, considered as a solution to the kinematics of deployable systems for

  17. SSME Post Test Diagnostic System: Systems Section

    NASA Technical Reports Server (NTRS)

    Bickmore, Timothy

    1995-01-01

    An assessment of engine and component health is routinely made after each test firing or flight firing of a Space Shuttle Main Engine (SSME). Currently, this health assessment is done by teams of engineers who manually review sensor data, performance data, and engine and component operating histories. Based on review of information from these various sources, an evaluation is made as to the health of each component of the SSME and the preparedness of the engine for another test or flight. The objective of this project - the SSME Post Test Diagnostic System (PTDS) - is to develop a computer program which automates the analysis of test data from the SSME in order to detect and diagnose anomalies. This report primarily covers work on the Systems Section of the PTDS, which automates the analyses performed by the systems/performance group at the Propulsion Branch of NASA Marshall Space Flight Center (MSFC). This group is responsible for assessing the overall health and performance of the engine, and detecting and diagnosing anomalies which involve multiple components (other groups are responsible for analyzing the behavior of specific components). The PTDS utilizes several advanced software technologies to perform its analyses. Raw test data is analyzed using signal processing routines which detect features in the data, such as spikes, shifts, peaks, and drifts. Component analyses are performed by expert systems, which use 'rules-of-thumb' obtained from interviews with the MSFC data analysts to detect and diagnose anomalies. The systems analysis is performed using case-based reasoning. Results of all analyses are stored in a relational database and displayed via an X-window-based graphical user interface which provides ranked lists of anomalies and observations by engine component, along with supporting data plots for each.

  18. Incisional Negative Pressure Wound Therapy for Prevention of Postoperative Infections Following Caesarean Section

    ClinicalTrials.gov

    2017-01-30

    Surgical Wound Infection; Infection; Cesarean Section; Cesarean Section; Dehiscence; Complications; Cesarean Section; Complications; Cesarean Section, Wound, Dehiscence; Wound; Rupture, Surgery, Cesarean Section

  19. IFLA General Conference, 1990. Division of Special Libraries: Section of Administrative Libraries; Section of Social Science Libraries; Section of Science and Technology Libraries; Section of Biological and Medical Sciences Libraries; Section of Art Libraries. Booklet 2.

    ERIC Educational Resources Information Center

    International Federation of Library Associations, The Hague (Netherlands).

    The 23 papers in this collection were presented at 5 sections of the Division of Special Libraries: (1) "Principles of Government Librarianship" (Hans H. van der Neut); (2) "Strategic Planning as an Instrument of Improving Library Quality" (Maurice B. Line); (3) "Library Staff Development Consultancy: A Means to Achieve a…

  20. Special Section on Fusion Laser Engineering

    SciTech Connect

    Murray, J R; Soures, J M

    2004-06-04

    The National Ignition Facility (NIF) now under construction at Lawrence Livermore National Laboratory contains a large frequency-tripled neodymium glass laser system designed to deliver approximately 2 megajoules of ultraviolet laser light in nanosecond pulses to targets for the study of high-energy-density physics and inertial confinement fusion. When all 192 laser beams are operational in 2008 it will dwarf any currently operating laser system, and even with only four beams now operating it is among the largest and most energetic of such systems. This special section is a collection of papers covering important issues in the optical engineering of large lasers such as NIF. A number of other papers on NIF engineering issues can be found in the Proceedings of SPIE, volume 5341. The first paper by Miller, Moses, and Wuest is an overview of the NIF project and the applications for which the facility was designed. The following papers discuss specific issues in greater depth. Spaeth, et al., discuss the NIF laser architecture, the effect of optical performance specifications on the focal spot size, and some aspects of cleanliness in large laser systems. Bonnano discusses the strategy for assembling NIF from ''line-replaceable units'' (LRU) that are assembled in a cleanroom and transported to the laser system in sealed containers that mate with the laser enclosures and allow clean installations without maintaining cleanroom standards throughout the facility. Zacharias, et al., discuss the alignment and wavefront control systems that allow beams to strike the target within {+-}50 microns after a beam path of about 350 meters. Shaw, et al., discuss a laser performance operations model that is used to set up the laser for a shot, and compare the predictions of the model to data from the first four operating beams. Ermolaeva, et al. discuss the design and performance of a custom optical fiber that was developed for use in NIF ultraviolet diagnostics. Finally, Honig

  1. PREFACE: Focus section on superconducting power systems Focus section on superconducting power systems

    NASA Astrophysics Data System (ADS)

    Cardwell, D. A.; Amemiya, N.; Fair, R.

    2012-01-01

    This focus section of Superconductor Science and Technology looks at the properties, technology and applications of (RE)BCO and MgB2 based superconductors for power engineering systems. Both bulk and conductor forms of material are addressed, including elements of materials fabrication and processing, and the measurement of their applied properties for various levels of system application. The areas of research include ac losses in type II materials in power devices, cables and coated conductors, the development of high current dc cables and the application of superconductors in levitation devices, motors and fault current limiters. This focus section presents a broad cross-section of contemporary issues, that represent state-of-the-art for power applications of superconductors, and highlights the areas that require further development if commercial applications of these rapidly emerging materials are to be realised. It contains papers from some of the major groups in the field, including contributions from Europe, the USA and Japan, and describes devices that are relatively close to market.

  2. [Behind the naming of herbal section as the decoction section in Treasured Mirror Of Eastern Medicine].

    PubMed

    Oh, Chaekun

    2011-12-31

    Heo Jun, who is the main compiler of Treasured Mirror of Eastern Medicine, states to applicate Shennong's Classic of Materia Medica, Rihuazi's annotations and Li Gao and Zhu Zhenheng's opinion to arrange materia medica on the introductory notes of Treasured Mirror of Eastern Medicine. While Shennong's Classic of Materia Medica and Rihuazi's annotations are both conventional texts dealing with materia medica, Li Gao and Zhu Zhenheng are just clinical practitioners. Not only Li Gao has no authorship on materia medica, but also Zhu Zhenheng's Supplement to the Elucidation of Materia Medica is assessed to have no distinctive achievements. Nevertheless, Heo Jun shows positive considerations for their achievements of materia medica. Specifically, on the Decoction Section in Treasured Mirror of Eastern Medicine, theories of lift, lower, float, sink and Channel Entry, both representative achievements of Yishui school-including Li Gao-are adopted as it is, and Zhu Zhenheng's expressions are frequently utilized for conclusive remarks of medicinal effect. Furthermore, applications of both clinicians can be found within nature & flavour which is one of the principal terms of understanding materia medica. While being based on the conventional materia medica text Classified Emergency Materia Medica, the Decoction section in Treasured Mirror of Eastern Medicine is not restrained by the intricate traditional compositions and shows a new aspect of depiction by adding clinical information. And I think it is a important meaning of the Decoction section, which is the herbal chapter of Treasured Mirror of Eastern Medicine.

  3. East side, middle section, looking southwest, shows slightly more northerly ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    East side, middle section, looking southwest, shows slightly more northerly section than CO-172-AO-4. - Fitzsimons General Hospital, Quartermaster's Storehouse, Southwest Corner of East I Avenue & North Twelfth Street, Aurora, Adams County, CO

  4. 3. Front of Mansion, facing east, shows portico, raised section ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. Front of Mansion, facing east, shows portico, raised section of second story, and section (south of extreme left chimney) added c. 1914. Winter view. - Sotterly, State Route 245 & Vista Road Vicinity, Hollywood, St. Mary's County, MD

  5. 4. View looking northwest of east elevation of original section ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. View looking northwest of east elevation of original section of Langdale Cotton Mill. Note fire damage suggesting that this section is partially rebuilt. - Langdale Cotton Mill, 5910 Nineteenth Avenue, Valley, Chambers County, AL

  6. 15. OVERALL VIEW OF UPSTREAM FACE OF LIFT GATE SECTION ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. OVERALL VIEW OF UPSTREAM FACE OF LIFT GATE SECTION WITH TAINTER GATE SECTION OF SPILLWAY TO THE LEFT. VIEW TO SOUTHWEST. - Starved Rock Locks & Dam, Illinois Waterway River mile 231, Peru, La Salle County, IL

  7. ELEVATION NORTHEAST BY 30 DEGREES, WEST SECTIONS OF SPAN COVERED ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    ELEVATION NORTHEAST BY 30 DEGREES, WEST SECTIONS OF SPAN COVERED BY OVERGROWTH - Honey Run Bridge, Spanning Butte Creek, bypassed section of Honey Run Road (originally Carr Hill Road), Paradise, Butte County, CA

  8. 13. VIEW OF CENTER OF NORTH SECTION, SECOND FLOOR, SHOWING ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    13. VIEW OF CENTER OF NORTH SECTION, SECOND FLOOR, SHOWING TYPICAL SPACE AND STRUCTURAL CONFIGURATION, LOOKING EAST - Massachusetts Mills, Cloth Room-Section 15, 95 Bridge Street, Lowell, Middlesex County, MA

  9. 9. VIEW OF BASEMENT, NORTH SECTION, SHOWING TYPICAL PIER, FOOTINGS, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    9. VIEW OF BASEMENT, NORTH SECTION, SHOWING TYPICAL PIER, FOOTINGS, AND STRUCTURAL MEMBERS FOR FIRST FLOOR ABOVE, LOOKING WEST - Massachusetts Mills, Cloth Room-Section 15, 95 Bridge Street, Lowell, Middlesex County, MA

  10. 16 CFR 303.25 - Sectional disclosure of content.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... RULES AND REGULATIONS UNDER THE TEXTILE FIBER PRODUCTS IDENTIFICATION ACT § 303.25 Sectional disclosure of content. (a) Permissive. Where a textile fiber product is composed of two or more sections...

  11. Typical Window, Interior Wall Paint Sequence, Wall Section, and Foundation ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Typical Window, Interior Wall Paint Sequence, Wall Section, and Foundation Sections - Civilian Conservation Corps (CCC) Camp NP-5-C, Barracks No. 5, CCC Camp Historic District at Chapin Mesa, Cortez, Montezuma County, CO

  12. 5. VIEW OF BUILDING 6. SINGLE STORY SECTION NORTH OF ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. VIEW OF BUILDING 6. SINGLE STORY SECTION NORTH OF TWO-STORY SECTION. FACING NORTHWEST. - Winehaven, Storage Cellar & Fermentation Room, Point Molate Naval Fuel Depot, Richmond, Contra Costa County, CA

  13. 6. INTERIOR OF BASEMENT UNDER KITCHEN SHOWING FINISHED SECTION. OPEN ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    6. INTERIOR OF BASEMENT UNDER KITCHEN SHOWING FINISHED SECTION. OPEN DOOR TO UNFINISHED SECTION IS VISIBLE AT RIGHT PHOTO CENTER. VIEW TO NORTHWEST. - Rush Creek Hydroelectric System, Worker Cottage, Rush Creek, June Lake, Mono County, CA

  14. Single-level resonance parameters fit nuclear cross-sections

    NASA Technical Reports Server (NTRS)

    Drawbaugh, D. W.; Gibson, G.; Miller, M.; Page, S. L.

    1970-01-01

    Least squares analyses of experimental differential cross-section data for the U-235 nucleus have yielded single level Breit-Wigner resonance parameters that fit, simultaneously, three nuclear cross sections of capture, fission, and total.

  15. A new Director for the BAA Aurora Section

    NASA Astrophysics Data System (ADS)

    Gavine, D.

    2011-02-01

    from 2011 January 1, Dr Dave Gavine handed over the Aurora Section Directorship to Ken Kennedy, who has been Assistant Director for the last five years, with special responsibility for Noctilucent Clouds, currently the Section's most important work.

  16. 117. SECTION THROUGH MILL HOUSE AND FOREBAY SHOWING BREAST WHEEL, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    117. SECTION THROUGH MILL HOUSE AND FOREBAY SHOWING BREAST WHEEL, SECTION THROUGH PUMP CHAMBER, CA. 1820 Frederic Graff, Collection of the Franklin Institute - Fairmount Waterworks, East bank of Schuylkill River, Aquarium Drive, Philadelphia, Philadelphia County, PA

  17. Section 8(e) Notice User Guide – Primary Support

    EPA Pesticide Factsheets

    This document is the user guide for the Primary Support user of the Section 8(e) Notice tool which is part of the Office of Pollution Prevention and Toxics (OPPT) ‘Section 8(e) Notice’ application submission process.

  18. 5. Oblique view of center and south sections of building. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. Oblique view of center and south sections of building. VIEW OF NORTHWEST CORNER OF CENTER SECTION. - Department of Energy, Grand Junction Office, Building No. 3022, 2597 B3/4 Road, Grand Junction, Mesa County, CO

  19. 2. EAST ELEVATION OF IPA FACTORY; TWOSTORY SECTION BUILT IN ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. EAST ELEVATION OF IPA FACTORY; TWO-STORY SECTION BUILT IN 1892 AND PARTIALLY DESTROYED PARAPET SECTION BUILT CA. 1948. BRICK CHIMNEY ALSO BUILT CA. 1948. - Illinois Pure Aluminum Company, 109 Holmes Street, Lemont, Cook County, IL

  20. Section 508 Awareness Part 3 of 3: Technical Demonstration

    NASA Video Gallery

    Section 508 Awareness training video. This video is part of a series of training sessions that was delivered at Ames Research Center on November 1st, 2011 by Antonio HaileSelassie, the Section 508 ...

  1. Total and ionization cross sections of electron scattering by fluorocarbons

    NASA Astrophysics Data System (ADS)

    Antony, B. K.; Joshipura, K. N.; Mason, N. J.

    2005-02-01

    Electron impact total cross sections (50-2000 eV) and total ionization cross sections (threshold to 2000 eV) are calculated for typical plasma etching molecules CF4, C2F4, C2F6, C3F8 and CF3I and the CFx (x = 1-3) radicals. The total elastic and inelastic cross sections are determined in the spherical complex potential formalism. The sum of the two gives the total cross section and the total inelastic cross section is used to calculate the total ionization cross sections. The present total and ionization cross sections are found to be consistent with other theories and experimental measurements, where they exist. Our total cross section results for CFx (x = 1-3) radicals presented here are first estimates on these species.

  2. Applications of Direct-Print Imaging with Thin-Sections.

    ERIC Educational Resources Information Center

    Nuhfer, E. B.; Vinopal, R. J.

    1979-01-01

    Describes a process by which prints are produced using thin sections as negatives in a photographic enlarger. Design of a thin section holder, exposure times for common rock types, and several sample illustrations are provided. (Author/MA)

  3. Experiments on Antiprotons: Antiproton-Nucleon Cross Sections

    DOE R&D Accomplishments Database

    Chamberlain, Owen; Keller, Donald V.; Mermond, Ronald; Segre, Emilio; Steiner, Herbert M.; Ypsilantis, Tom

    1957-07-22

    In this paper experiments are reported on annihilation and scattering of antiprotons in H{sub 2}O , D{sub 2}O, and O{sub 2}. From the data measured it is possible to obtain an antiproton-proton and an antiproton-deuteron cross section at 457 Mev (lab). Further analysis gives the p-p and p-n cross sections as 104 mb for the p-p reaction cross section and 113 mb for the p-n reaction cross section. The respective annihilation cross sections are 89 and 74 mb. The Glauber correction necessary in order to pass from the p-d to the p-n cross section by subtraction of the p-p cross section is unfortunately large and somewhat uncertain. The data are compared with the p-p and p-n cross sections and with other results on p-p collisions.

  4. Electron Elastic-Scattering Cross-Section Database

    National Institute of Standards and Technology Data Gateway

    SRD 64 NIST Electron Elastic-Scattering Cross-Section Database (PC database, no charge)   This database provides values of differential elastic-scattering cross sections, corresponding total elastic-scattering cross sections, phase shifts, and transport cross sections for elements with atomic numbers from 1 to 96 and for electron energies between 50 eV and 20,000 eV (in steps of 1 eV).

  5. Spanwise transition section for blended wing-body aircraft

    NASA Technical Reports Server (NTRS)

    Hawley, Arthur V. (Inventor)

    1999-01-01

    A blended wing-body aircraft includes a central body, a wing, and a transition section which interconnects the body and the wing on each side of the aircraft. The two transition sections are identical, and each has a variable chord length and thickness which varies in proportion to the chord length. This enables the transition section to connect the thin wing to the thicker body. Each transition section has a negative sweep angle.

  6. Short Nissl staining for incubated cryostat sections of the brain.

    PubMed

    Lindroos, O F

    1991-01-01

    Nissl stain often binds poorly to cryostat sections which have been incubated in solutions of radiolabeled ligands. Such incubation is used in receptor autoradiography of the brain when using the in vitro method. We have developed a rapid (16 min) modification of Nissl staining for sections that bind stain poorly, e.g., incubated sections. The method stains well sections which cannot be stained with other rapid Nissl staining methods.

  7. 26 CFR 16A.126-2 - Section 126 elections.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 14 2013-04-01 2013-04-01 false Section 126 elections. 16A.126-2 Section 16A...-SHARING PAYMENTS § 16A.126-2 Section 126 elections. (a) Election for section 126 not to apply in whole or... return (or amended return) for the taxable year in which the taxpayer received the last payment made by...

  8. 26 CFR 16A.126-2 - Section 126 elections.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 26 Internal Revenue 14 2014-04-01 2013-04-01 true Section 126 elections. 16A.126-2 Section 16A.126...-SHARING PAYMENTS § 16A.126-2 Section 126 elections. (a) Election for section 126 not to apply in whole or... return (or amended return) for the taxable year in which the taxpayer received the last payment made by...

  9. Raman Spectroscopy and Structure of MgSiO3 High Temperature C2/c Clinoenstatite

    NASA Astrophysics Data System (ADS)

    Kusu, R.; Yoshiasa, A.; Nishiyama, T.; Akihiko, N.; Maki, O.; Hiroshi, A.; Sugiyama, K.

    2014-12-01

    temperature. HT-CEn may be found in natural rocks that had rapid quenching history such as a shock-metamorphosed meteorite. Especially the peaks of 108 and 684 cm-1 are clear and Raman spectrra can use for an identification. [1] A. Yoshiasa, A. Nakatsuka, M. Okube and T. Katsura, Acta Crystallographica Section B, 2013, 69, 541-546

  10. 24 CFR 590.19 - Use of section 810 funds.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 24 Housing and Urban Development 3 2011-04-01 2010-04-01 true Use of section 810 funds. 590.19 Section 590.19 Housing and Urban Development Regulations Relating to Housing and Urban Development... URBAN DEVELOPMENT COMMUNITY FACILITIES URBAN HOMESTEADING § 590.19 Use of section 810...

  11. 18 CFR 300.14 - Filings under section 7(k).

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...(k). 300.14 Section 300.14 Conservation of Power and Water Resources FEDERAL ENERGY REGULATORY... section 7(k). Any application for Commission review and approval of a rate or rate schedules established by the Administrator of the Bonneville Power Administration pursuant to section 7(k) of the...

  12. 77 FR 26175 - Section 42 Qualified Contract Provisions

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-03

    ... also issued under 26 U.S.C. 42(h)(6)(F) and 42(h)(6)(K); * * * 0 Par. 2. Section 1.42-18 is added to... housing credit agencies to obtain a qualified contract (as defined in section 42(h)(6)(F) of the Internal Revenue Code) for the acquisition of a low- income housing credit building. Section 42(h)(6)(F)...

  13. 48 CFR 6.204 - Section 8(a) competition.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Section 8(a) competition... ACQUISITION PLANNING COMPETITION REQUIREMENTS Full and Open Competition After Exclusion of Sources 6.204 Section 8(a) competition. (a) To fulfill statutory requirements relating to section 8(a) of the...

  14. 48 CFR 6.204 - Section 8(a) competition.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 1 2011-10-01 2011-10-01 false Section 8(a) competition... ACQUISITION PLANNING COMPETITION REQUIREMENTS Full and Open Competition After Exclusion of Sources 6.204 Section 8(a) competition. (a) To fulfill statutory requirements relating to section 8(a) of the...

  15. 14 CFR 25.1192 - Engine accessory section diaphragm.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Engine accessory section diaphragm. 25.1192....1192 Engine accessory section diaphragm. For reciprocating engines, the engine power section and all portions of the exhaust system must be isolated from the engine accessory compartment by a diaphragm...

  16. 2. North side and west rear. Main section of roundhouse ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. North side and west rear. Main section of roundhouse (MN-99-A) in background at left. Top of sand tower (MN-99-E) visible above main roundhouse section. Machne shop section of roundhouse in background at right. View to southeast. - Duluth & Iron Range Rail Road Company Shops, Office, Southwest of downtown Two Harbors, northwest of Agate Bay, Two Harbors, Lake County, MN

  17. 46 CFR Section 1 - What this order does.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 8 2010-10-01 2010-10-01 false What this order does. Section 1 Section 1 Shipping MARITIME ADMINISTRATION, DEPARTMENT OF TRANSPORTATION A-NATIONAL SHIPPING AUTHORITY BONDING OF SHIP'S PERSONNEL Section 1 What this order does. This order requires that General Agents, appointed under...

  18. 46 CFR Section 1 - What this order does.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 8 2011-10-01 2011-10-01 false What this order does. Section 1 Section 1 Shipping MARITIME ADMINISTRATION, DEPARTMENT OF TRANSPORTATION A-NATIONAL SHIPPING AUTHORITY BONDING OF SHIP'S PERSONNEL Section 1 What this order does. This order requires that General Agents, appointed under...

  19. 49 CFR 178.338-12 - Shear section.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 3 2011-10-01 2011-10-01 false Shear section. 178.338-12 Section 178.338-12 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY... Containers for Motor Vehicle Transportation § 178.338-12 Shear section. Unless the valve is located in a...

  20. 49 CFR 178.338-12 - Shear section.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 3 2014-10-01 2014-10-01 false Shear section. 178.338-12 Section 178.338-12 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY... Containers for Motor Vehicle Transportation § 178.338-12 Shear section. Unless the valve is located in a...

  1. 49 CFR 178.338-12 - Shear section.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 3 2013-10-01 2013-10-01 false Shear section. 178.338-12 Section 178.338-12 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY... Containers for Motor Vehicle Transportation § 178.338-12 Shear section. Unless the valve is located in a...

  2. 49 CFR 178.338-12 - Shear section.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 3 2012-10-01 2012-10-01 false Shear section. 178.338-12 Section 178.338-12 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY... Containers for Motor Vehicle Transportation § 178.338-12 Shear section. Unless the valve is located in a...

  3. Part Long Section with Middle Wall at Crow of Reinforcing ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Part Long Section with Middle Wall at Crow of Reinforcing Arch-Center of Bridge; Part Section Across Bridge at Center; Part Long Section with Middle Wall and Foot of Reinforcing Arch; South Side and East Entrance; View of Bridge and Schoharie River Looking South; One Aisle of Bridge - Blenheim Covered Bridge, Spanning Schoharie River, North Blenheim, Schoharie County, NY

  4. 40 CFR 52.1640 - Original identification of plan section.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... County Regulation 35-Alternative Fuels, section 35.00, “Purpose;” section 35.01, “Definitions;” section... Department (Department), to A. Stanley Meiburg, Director, Air, Pesticides and Toxics Division, EPA Region 6... Department, to A. Stanley Meiburg, Director, Air, Pesticides and Toxics Division, EPA Region 6, regarding...

  5. 40 CFR 52.1640 - Original identification of plan section.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... County Regulation 35-Alternative Fuels, section 35.00, “Purpose;” section 35.01, “Definitions;” section... Department (Department), to A. Stanley Meiburg, Director, Air, Pesticides and Toxics Division, EPA Region 6... Department, to A. Stanley Meiburg, Director, Air, Pesticides and Toxics Division, EPA Region 6, regarding...

  6. 40 CFR 52.1640 - Original identification of plan section.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... County Regulation 35-Alternative Fuels, section 35.00, “Purpose;” section 35.01, “Definitions;” section... Department (Department), to A. Stanley Meiburg, Director, Air, Pesticides and Toxics Division, EPA Region 6... Department, to A. Stanley Meiburg, Director, Air, Pesticides and Toxics Division, EPA Region 6, regarding...

  7. 40 CFR 52.1640 - Original identification of plan section.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... County Regulation 35-Alternative Fuels, section 35.00, “Purpose;” section 35.01, “Definitions;” section... Department (Department), to A. Stanley Meiburg, Director, Air, Pesticides and Toxics Division, EPA Region 6... Department, to A. Stanley Meiburg, Director, Air, Pesticides and Toxics Division, EPA Region 6, regarding...

  8. Mental Visualization of Objects from Cross-Sectional Images

    ERIC Educational Resources Information Center

    Wu, Bing; Klatzky, Roberta L.; Stetten, George D.

    2012-01-01

    We extended the classic anorthoscopic viewing procedure to test a model of visualization of 3D structures from 2D cross-sections. Four experiments were conducted to examine key processes described in the model, localizing cross-sections within a common frame of reference and spatiotemporal integration of cross sections into a hierarchical object…

  9. IFLA General Conference, 1989. Division of Collections and Services. Open Forum of the Division; Section on Acquisition and Exchange; Section on Interlending and Document Delivery; Section on Serial Publications; Section on Rare and Precious Books and Documents. Booklet 50.

    ERIC Educational Resources Information Center

    1989

    There are 20 papers in this collection from the Division of Collections and Services: "IFLA Division of Collections and Services" (Hope E. A. Clement); "Divisional Open Forum Reports" ("Section of Acquisition and Exchange" by Ulrich Montag; "Section of Government Information and Official Publications" by Bernadine Abbott Hoduski; "Section on…

  10. 14 CFR Section 3 - Chart of Balance Sheet Accounts

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 4 2014-01-01 2014-01-01 false Chart of Balance Sheet Accounts Section 3 Section 3 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION... Balance Sheet Classifications Section 3 Chart of Balance Sheet Accounts Name of account...

  11. 14 CFR Section 3 - Chart of Balance Sheet Accounts

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 4 2013-01-01 2013-01-01 false Chart of Balance Sheet Accounts Section 3 Section 3 Aeronautics and Space OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION... Balance Sheet Classifications Section 3 Chart of Balance Sheet Accounts Name of account...

  12. 40 CFR 52.2063 - Original identification of plan section.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 4 2010-07-01 2010-07-01 false Original identification of plan section. 52.2063 Section 52.2063 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS (CONTINUED) Pennsylvania § 52.2063 Original identification of plan section....

  13. Section BB Hatch Coating; Framing Plan on Line C Lodging ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Section B-B Hatch Coating; Framing Plan on Line C Lodging Knees at Hatch; Elevation A-A Hull Framing; Section at Hatch Frame 36, Starboard Looking Aft; Midship Section Frame 37, Port Looking Aft - Steam Schooner WAPAMA, Kaiser Shipyard No. 3 (Shoal Point), Richmond, Contra Costa County, CA

  14. 26 CFR 1.72-2 - Applicability of section.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 26 Internal Revenue 2 2013-04-01 2013-04-01 false Applicability of section. 1.72-2 Section 1.72-2... other provisions of Chapter 1 of the Code, section 72 shall not apply for the purpose of including such... computations, or both, in conjunction with such terms and in accordance with sound actuarial theory. For...

  15. 26 CFR 1.72-2 - Applicability of section.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 2 2011-04-01 2011-04-01 false Applicability of section. 1.72-2 Section 1.72-2... other provisions of Chapter 1 of the Code, section 72 shall not apply for the purpose of including such... computations, or both, in conjunction with such terms and in accordance with sound actuarial theory. For...

  16. 40 CFR 52.2063 - Original identification of plan section.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 5 2013-07-01 2013-07-01 false Original identification of plan section. 52.2063 Section 52.2063 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS (CONTINUED) Pennsylvania § 52.2063 Original identification of plan section....

  17. 40 CFR 52.2063 - Original identification of plan section.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 5 2012-07-01 2012-07-01 false Original identification of plan section. 52.2063 Section 52.2063 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS (CONTINUED) Pennsylvania § 52.2063 Original identification of plan section....

  18. 40 CFR 52.2063 - Original identification of plan section.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 4 2011-07-01 2011-07-01 false Original identification of plan section. 52.2063 Section 52.2063 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS (CONTINUED) Pennsylvania § 52.2063 Original identification of plan section....

  19. 40 CFR 52.1974 - Original identification of plan section.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 4 2014-07-01 2014-07-01 false Original identification of plan section. 52.1974 Section 52.1974 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS (CONTINUED) Oregon § 52.1974 Original identification of plan section. (a)...

  20. 40 CFR 52.2186 - Original identification of plan section.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Quality Monitoring 40 CFR part 58, subpart C, § 58.20, and Public Notification required under section 127... 40 Protection of Environment 4 2011-07-01 2011-07-01 false Original identification of plan section. 52.2186 Section 52.2186 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)...