Science.gov

Sample records for ragnar leming aleksander

  1. Ragnar Rommetveit's Approach to Everyday Spoken Dialogue from Within.

    PubMed

    Kowal, Sabine; O'Connell, Daniel C

    2016-04-01

    The following article presents basic concepts and methods of Ragnar Rommetveit's (born 1924) hermeneutic-dialogical approach to everyday spoken dialogue with a focus on both shared consciousness and linguistically mediated meaning. He developed this approach originally in his engagement of mainstream linguistic and psycholinguistic research of the 1960s and 1970s. He criticized this research tradition for its individualistic orientation and its adherence to experimental methodology which did not allow the engagement of interactively established meaning and understanding in everyday spoken dialogue. As a social psychologist influenced by phenomenological philosophy, Rommetveit opted for an alternative conceptualization of such dialogue as a contextualized, partially private world, temporarily co-established by interlocutors on the basis of shared consciousness. He argued that everyday spoken dialogue should be investigated from within, i.e., from the perspectives of the interlocutors and from a psychology of the second person. Hence, he developed his approach with an emphasis on intersubjectivity, perspectivity and perspectival relativity, meaning potential of utterances, and epistemic responsibility of interlocutors. In his methods, he limited himself for the most part to casuistic analyses, i.e., logical analyses of fictitious examples to argue for the plausibility of his approach. After many years of experimental research on language, he pursued his phenomenologically oriented research on dialogue in English-language publications from the late 1980s up to 2003. During that period, he engaged psycholinguistic research on spoken dialogue carried out by Anglo-American colleagues only occasionally. Although his work remained unfinished and open to development, it provides both a challenging alternative and supplement to current Anglo-American research on spoken dialogue and some overlap therewith. PMID:26597220

  2. Ragnar Rommetveit's Approach to Everyday Spoken Dialogue from Within.

    PubMed

    Kowal, Sabine; O'Connell, Daniel C

    2016-04-01

    The following article presents basic concepts and methods of Ragnar Rommetveit's (born 1924) hermeneutic-dialogical approach to everyday spoken dialogue with a focus on both shared consciousness and linguistically mediated meaning. He developed this approach originally in his engagement of mainstream linguistic and psycholinguistic research of the 1960s and 1970s. He criticized this research tradition for its individualistic orientation and its adherence to experimental methodology which did not allow the engagement of interactively established meaning and understanding in everyday spoken dialogue. As a social psychologist influenced by phenomenological philosophy, Rommetveit opted for an alternative conceptualization of such dialogue as a contextualized, partially private world, temporarily co-established by interlocutors on the basis of shared consciousness. He argued that everyday spoken dialogue should be investigated from within, i.e., from the perspectives of the interlocutors and from a psychology of the second person. Hence, he developed his approach with an emphasis on intersubjectivity, perspectivity and perspectival relativity, meaning potential of utterances, and epistemic responsibility of interlocutors. In his methods, he limited himself for the most part to casuistic analyses, i.e., logical analyses of fictitious examples to argue for the plausibility of his approach. After many years of experimental research on language, he pursued his phenomenologically oriented research on dialogue in English-language publications from the late 1980s up to 2003. During that period, he engaged psycholinguistic research on spoken dialogue carried out by Anglo-American colleagues only occasionally. Although his work remained unfinished and open to development, it provides both a challenging alternative and supplement to current Anglo-American research on spoken dialogue and some overlap therewith.

  3. T@lemed: Ehealth applications applied to underserved areas in Latin America

    NASA Astrophysics Data System (ADS)

    Sachpazidis, Ilias; Ohl, Roland; Binotto, Alécio Pedro Delazari; Torres, Márcio Soares; Messina, Luiz Ary; Sales, Alexandre; Gomes, Ricardo; Sakas, Georgios

    2006-12-01

    Access to medical care is sometimes very difficult to be reached from people living in rural and underserved areas. This problem is very well known in rural areas in Brazil. Citizens have no access to health care. They have to travel hundreds of kilometres to receive medical care. In this paper, we will propose a medical network based on state-of-the-art medical imaging application that addresses the problems of providing health care from a distance. Additionally, we are going to show preliminarily results of the first year of the system deployment and utilization in undeserved regions in Brazil. The total number of patients submitted to ultrasound examinations, during the 10 months of projects' medical trials, is 321. The exams have begun with the elderly people (hypertension and diabetes cases) with 90% above 50-years-old. Fifty-four percent were male and 46% were female. From those exams, 67 exams (21%) needed a second medical opinion and were transmitted to Santa Casa hospital in Porto Alegre, Brazil, one of the referral medical centres. From those second opinions of Santa Casa, 12 exams had to be repeated since the acquired images were not sufficient to give a correct diagnosis. The Lagoa Tres Cantos medical doctor performed also preventive exams with patients who had not presented any symptoms (70%).

  4. Homeless and nonhomeless VA service users likely eligible for Medicaid expansion.

    PubMed

    Tsai, Jack; Rosenheck, Robert A

    2014-01-01

    Administrative data on the population of Department of Veterans Affairs (VA) service users in 2010 under the age of 65 (n = 3,841,225) were analyzed to identify the number and characteristics of homeless and nonhomeless VA service users who are likely to be eligible for the Medicaid expansion (LEME) option under the Affordable Care Act. Results showed that, estimating conservatively, about 1.2 million (21%) current VA users are LEME if all states implement the expansion. Homeless service users were twice as likely to be eligible than nonhomeless users (64% vs 30%). VA service users who are LEME, regardless of housing status, were physically healthier than those not LEME but were more likely to have substance use disorders and posttraumatic stress disorder. These findings suggest that many VA service users are LEME, particularly those who are homeless and/or have mental health needs. Cross-system use of VA and Medicaid-funded services may be advantageous for veterans with extensive medical and psychiatric needs but also risks fragmented care. Information and education for VA clinicians and their patients about possible implications of the Affordable Care Act may be important. PMID:25358031

  5. Studies on eimerians (Apicomplexa: Eimeriidae) of wild ruminants.

    PubMed

    Pyziel, Anna

    2012-01-01

    The studies were carried out in W. Stefanski Institute of Parasitology Polish Academy of Sciences. Doctoral thesis defense took place on May 29th 2012. Supervisor: prof. dr hab. Aleksander W. Demiaszkiewicz. PMID:25165763

  6. The Case for Studying Character(s) in the Literature Classroom

    ERIC Educational Resources Information Center

    White, Brian; Haberling, Jennifer

    2006-01-01

    In response to increased violence, bullying, and anti-social behavior among young people in our schools and on our streets (Akiba, M., LeTendre, G., Baker, D., & Goesling, B., 2002; Leming, 1996; Males, 2001; Pellegrini & Bartini, 2000; Smagorinsky, 2002; Tendero, 2000), advocates of character education have proposed and instituted a…

  7. Cheating Incidences, Perceptions of Cheating, and the Moral Development Level of College Students

    ERIC Educational Resources Information Center

    Williams, Leslie K.

    2012-01-01

    Research indicates that approximately 70% of college students engage in some form of cheating (Austin, Simpson, & Reynen, 2005; Bowers, 1964; Leming; 1978; McCabe & Trevino, 1993, 1996; McCabe, Trevino, & Butterfield, 2001a). College students overwhelmingly agree that cheating is morally wrong; yet, their actions are not reflective of this belief…

  8. Where Did Social Studies Go Wrong?

    ERIC Educational Resources Information Center

    Leming, James, Ed.; Ellington, Lucien, Ed.; Porter, Kathleen, Ed.

    This book consists of a collection of critiques by educators who fault the teaching methods and curricular ideas of their field and suggest how the field can be reformed. Following a "Foreword" (Chester E. Finn, Jr.) and an "Introduction" (James S. Leming; Lucien Ellington), there are seven articles in the book: (1) "A Brief History of Social…

  9. Growth and mortality of Cichla spp. (Perciformes, Cichlidae) introduced in Volta Grande Reservoir (Grande River) and in a small artificial lake in Southeastern Brazil.

    PubMed

    Gomiero, L M; Carmassi, A L; Rondineli, G R; Villares Junior, G A; Braga, F M S

    2010-11-01

    The growth and mortality parameters were estimated through the analysis of length frequency distribution for species of Cichla spp. introduced into a lake in Leme (SP), and in Volta Grande reservoir (SP-MG). In Leme, Cichla kelberi presented larger frequency in the inferior classes of lengths, larger instantaneous rate of natural mortality, and smaller number of cohorts than C. kelberi and C. piquiti in Volta Grande. The values of growth performance obtained for the species were similar, corroborating the validity of the estimated growth and mortality parameters. The increase of the growth rate in small and less diverse environments occurs due to predation. The genus Cichla adapts well in locations in which it is introduced, however this adaptation shows itself to be strongly adjusted to each particular location, determining great plasticity and establishment capacity. PMID:21180920

  10. Growth and mortality of Cichla spp. (Perciformes, Cichlidae) introduced in Volta Grande Reservoir (Grande River) and in a small artificial lake in Southeastern Brazil.

    PubMed

    Gomiero, L M; Carmassi, A L; Rondineli, G R; Villares Junior, G A; Braga, F M S

    2010-11-01

    The growth and mortality parameters were estimated through the analysis of length frequency distribution for species of Cichla spp. introduced into a lake in Leme (SP), and in Volta Grande reservoir (SP-MG). In Leme, Cichla kelberi presented larger frequency in the inferior classes of lengths, larger instantaneous rate of natural mortality, and smaller number of cohorts than C. kelberi and C. piquiti in Volta Grande. The values of growth performance obtained for the species were similar, corroborating the validity of the estimated growth and mortality parameters. The increase of the growth rate in small and less diverse environments occurs due to predation. The genus Cichla adapts well in locations in which it is introduced, however this adaptation shows itself to be strongly adjusted to each particular location, determining great plasticity and establishment capacity.

  11. Papers and Studies in Contrastive Linguistics, Volume Fifteen.

    ERIC Educational Resources Information Center

    Fisiak, Jacek, Ed.

    1982-01-01

    This issue of the journal includes these papers on contrastive linguistics: "Some Problems of YES-NO Answers" (Aleksander Szwedek); "Danish versus Russian. A Short Analysis of the Verb" (Christian Hougaard); "Polish SIE Constructions and Their English Counterparts" (Wojciech Kubinski); "More on the Time Reference and the Analysis of Tense"…

  12. [The application of forensic medical knowledge for the reconstruction of historical events].

    PubMed

    Kovalev, A V; Molin, Yu A; Gorshkov, A N; Smolyanitsky, A G; Mazurova, E A; Vorontsov, G A

    2015-01-01

    The objective of the present study was to summarize the results of many year investigations on the application of forensic medical methods and experience for the reconstruction of historical events including identification of the ancient Russian saints' hallows and statesmen's remains, elucidation of the genuine causes of death of the members of the Russian Imperial House of Romanovs based on the recently discovered archival materials, restoration of the character of the injuries suffered by Aleksander II, M.I. Kutuzov, P. Demidov, G. Gapon., and G. Rasputin, the attribution A.S. Pushkin's memorial belongings based on the biological traces, and the like.

  13. Detection of Left Ventricular Regional Function in Asymptomatic Children with beta-Thalassemia Major by Longitudinal Strain and Strain Rate Imaging.

    PubMed

    Bay, Ali; Başpınar, Osman; Leblebisatan, Göksel; Yalçın, Ali Seçkin; Irdem, Ahmet

    2013-09-01

    Amaç: Beta talasemi majörlü hastalarda demir yüklenmesine bağlı kalp yetmezliği en sık ölüm nedenidir. Bu çalışmada beta talasemi majörlü çocuklarda standart ekokardiyografi ve strain rate görüntüleme ile myokardiyal fonksiyonun değerlendirilmesi amaçlanmıştır. Gereç ve Yöntemler: Çalışmamızda rutin ekokardiyografik değerlendirme ile beraber sol ventrikülün doku velosite görüntülenmesi, strain/strain rate görüntülemesi beta talasemi majörlü 48 çocukta (19 kız, 29 erkek; 8.39±4.05 yıl) ve 22 sağlıklı çocukta (11 kız, 11 erkek; 8±3.72 yıl) ölçülmüştür. Bulgular: Rutin ekokardiyografik değerlendirmede beta talasemi majörlü hastalarda daha geniş sol ventrikül sistol sonu çap, diyastol ve sistol sonu hacmi olduğu, kitlesinin artmış olduğu ve mitral kapak erken/geç diyastolik akım oranının artmış olduğu görüldü (p<0.05). Sol ventrikül bazal lateral duvarı strain ve strain rate görüntülemesi değerleri hasta grubunda kontrole göre anlamlı yüksek değerdeydi (sırası ile p=0.035 ve p=0.008). Sonuç: Sol ventrikül superior strain ve strain rate görüntülemesinde sol ventrikül duvarının bölgesel sistolik fonksiyonunu koruduğunu bulduk. Çocukluk çağında sol ventrikül hacim ve kitle indeksi göstergelerinin diğer geleneksel ve strain/strain rate görüntüleme göstergelerine göre daha duyarlı olabileceğini düşünmekteyiz. Bununla beraber, erişkin döneminde demir yüklenmesinin kritik seviyeyi aşması ile strain ve strain rate görüntüleme değerleri kontrol olgularınınkinden daha düşük bulunabilir.

  14. Determination of Aflatoxins in Peanut Products in the Northeast Region of São Paulo, Brazil

    PubMed Central

    Oliveira, Carlos A. F.; Gonçalves, Natália B.; Rosim, Roice E.; Fernandes, Andrezza M.

    2009-01-01

    The aim of the present study was to determine aflatoxin levels in peanut products traded in the Northeast region of São Paulo, Brazil. To this end, 240 samples of peanut products traded in the cities of Araras, Leme, Pirassununga and Porto Ferreira were collected from June 2006 to May 2007. The samples were analyzed for aflatoxins (AF) B1, B2, G1 and G2 by high performance liquid chromatography. Results showed 44.2% samples positive for AF at levels of 0.5 to 103.8 μg·kg−1. Nine of the positive samples (3.7% of the analysed samples) had total aflatoxin concentrations (B1+B2+G1+G2) higher than the limit established by Brazilian regulations (20 μg·kg−1). Based on the above data, the probable mean daily intake (PDIM) of aflatoxins from peanut products in the Northeast region of São Paulo was estimated to be 0.23 ng kg b.w. day−1. Although this PDIM value was relatively low, results indicate that aflatoxin contamination of peanut products may be a public health concern in Brazil, when considering the potential exposure of highly susceptible consumers. For example, it should be emphasized that children are potentially exposed to aflatoxins, since they consume large quantities of peanut candies, and these products had the highest number of samples positive for AFB1. PMID:19333440

  15. The polyphenolics and carbohydrates as indicators of botanical and geographical origin of Serbian autochthonous clones of red spice paprika.

    PubMed

    Mudrić, Sanja Ž; Gašić, Uroš M; Dramićanin, Aleksandra M; Ćirić, Ivanka Ž; Milojković-Opsenica, Dušanka M; Popović-Đorđević, Jelena B; Momirović, Nebojša M; Tešić, Živoslav Lj

    2017-02-15

    Spice peppers (Capsicum annuum L.) var. Lemeška and Lakošnička paprika were investigated to evaluate their polyphenolic and carbohydrate profiles and antioxidant activity. A total of forty-nine polyphenolics were identified using ultrahigh-performance liquid chromatography (UHPLC) coupled to LTQ OrbiTrap mass analyzer. Twenty-five of them were quantified using available standards, while the other compounds were confirmed by exact mass search of their deprotonated molecule [M-H](-) and its MS(4) fragmentation. Thirteen carbohydrates were quantified using high-performance anion exchange chromatography (HPAEC) with pulsed amperometric detection (PAD). Radical scavenging activity (RSA) ranged from 17.32 to 48.34mmol TE (Trolox equivalent)/kg DW (dry weight) and total phenolics content (TPC) was ranged between 7.03 and 14.92g GAE (gallic acid equivalents)/kg DW. To our best knowledge, five polyphenolic compounds were for the first time tentatively identified in paprika: 5-O-p-coumaroylquinic acid, luteolin 7-O-(2″-O-pentosyl-4″-O-hexosyl)hexoside, quercetin 3-O-(2″-O-hexosyl)rhamnoside, isorhamnetin 3-O-[6″-O-(5-hydroxyferuloyl)hexoside]-7-O-rhamnoside, and luteolin 7-O-[2″-O-(5'″-O-sinapoyl)pentosyl-6″-O-malonyl]hexoside.

  16. The polyphenolics and carbohydrates as indicators of botanical and geographical origin of Serbian autochthonous clones of red spice paprika.

    PubMed

    Mudrić, Sanja Ž; Gašić, Uroš M; Dramićanin, Aleksandra M; Ćirić, Ivanka Ž; Milojković-Opsenica, Dušanka M; Popović-Đorđević, Jelena B; Momirović, Nebojša M; Tešić, Živoslav Lj

    2017-02-15

    Spice peppers (Capsicum annuum L.) var. Lemeška and Lakošnička paprika were investigated to evaluate their polyphenolic and carbohydrate profiles and antioxidant activity. A total of forty-nine polyphenolics were identified using ultrahigh-performance liquid chromatography (UHPLC) coupled to LTQ OrbiTrap mass analyzer. Twenty-five of them were quantified using available standards, while the other compounds were confirmed by exact mass search of their deprotonated molecule [M-H](-) and its MS(4) fragmentation. Thirteen carbohydrates were quantified using high-performance anion exchange chromatography (HPAEC) with pulsed amperometric detection (PAD). Radical scavenging activity (RSA) ranged from 17.32 to 48.34mmol TE (Trolox equivalent)/kg DW (dry weight) and total phenolics content (TPC) was ranged between 7.03 and 14.92g GAE (gallic acid equivalents)/kg DW. To our best knowledge, five polyphenolic compounds were for the first time tentatively identified in paprika: 5-O-p-coumaroylquinic acid, luteolin 7-O-(2″-O-pentosyl-4″-O-hexosyl)hexoside, quercetin 3-O-(2″-O-hexosyl)rhamnoside, isorhamnetin 3-O-[6″-O-(5-hydroxyferuloyl)hexoside]-7-O-rhamnoside, and luteolin 7-O-[2″-O-(5'″-O-sinapoyl)pentosyl-6″-O-malonyl]hexoside. PMID:27664689

  17. Ultrastructure and pollen morphology of Bromeliaceae species from the Atlantic Rainforest in Southeastern Brazil.

    PubMed

    Silva, Vanessa J D; Ribeiro, Ester M; Luizi-Ponzo, Andrea P; Faria, Ana Paula G

    2016-01-01

    Pollen grain morphology of Bromeliaceae species collected in areas of the Atlantic Rainforest of southeastern Brazil was studied. The following species were analyzed: Aechmea bambusoides L.B.Sm. & Reitz, A. nudicaulis (L.) Griseb., A. ramosa Mart. ex Schult.f., Ananas bracteatus (Lindl.) Schult.f., Billbergia distachia (Vell.) Mez, B. euphemiae E. Morren, B. horrida Regel, B. zebrina (Herb.) Lindl., Portea petropolitana (Wawra) Mez, Pitcairnia flammea Lindl., Quesnelia indecora Mez, Tillandsia polystachia (L.) L., T. stricta Sol., T. gardneri Lindl., T. geminiflora Brongn. and Vriesea grandiflora Leme. Light and scanning electron microscopy were used and the species were grouped into three pollen types, organized according to aperture characteristics: Type I - pantoporate pollen grains observed in P. petropolitana, Type II - 2-porate pollen grains, observed in the genera Ananas, Aechmea and Quesnelia, and Type III - 1-colpate pollen grains, observed in the genera Billbergia, Pitcairnia, Tillandsia and Vriesea. Pollen data led to the construction of an identification key. The results showed that the species analyzed can be distinguished using mainly aperture features and exine ornamentation, and that these characteristics may assist in taxonomic studies of the family. PMID:27168370

  18. Vilhelm Bjerknes' vision for scientific weather prediction

    NASA Astrophysics Data System (ADS)

    Grønås, Sigbjørn

    With his circulation theorem, Vilhelm Bjerknes extended Kelvin's theorem from barotropic to baroclinic environments. In doing so, he built a bridge between the scientific disciplines of hydrodynamics and thermodynamics. Application of his theorem to circulations in atmosphere and ocean led Bjerknes to publish a paper in 1904 expressing a vision and a programme for scientific weather forecasting. With generous funding from the Carnegie Institution of Washington from 1905, Bjerknes for the rest of his life dedicated his scientific strength to his vision. Needed theories on the dynamics of the atmosphere were given in a number of textbooks that he wrote together with his assistants. With the Bergen School of Meteorology he renewed weather forecasting throughout the world. Bjerknes' work inspired Louis Fry Richardson to his famous experiment to compute a change in the state of the atmosphere. Bjerknes and his assistants also inspired Arnt Eliassen and Ragnar Fjørtoft, who played important roles in developing numerical weather prediction after the Second World War. The name of Vilhelm Bjerknes has now been honoured by the establishment of the Bjerknes Centre for Climate Research in Bergen, Norway.

  19. Quantitative assessment of MS plaques and brain atrophy in multiple sclerosis using semiautomatic segmentation method

    NASA Astrophysics Data System (ADS)

    Heinonen, Tomi; Dastidar, Prasun; Ryymin, Pertti; Lahtinen, Antti J.; Eskola, Hannu; Malmivuo, Jaakko

    1997-05-01

    Quantitative magnetic resonance (MR) imaging of the brain is useful in multiple sclerosis (MS) in order to obtain reliable indices of disease progression. The goal of this project was to estimate the total volume of gliotic and non gliotic plaques in chronic progressive multiple sclerosis with the help of a semiautomatic segmentation method developed at the Ragnar Granit Institute. Youth developed program running on a PC based computer provides de displays of the segmented data, in addition to the volumetric analyses. The volumetric accuracy of the program was demonstrated by segmenting MR images of fluid filed syringes. An anatomical atlas is to be incorporated in the segmentation system to estimate the distribution of MS plaques in various neural pathways of the brain. A total package including MS plaque volume estimation, estimation of brain atrophy and ventricular enlargement, distribution of MS plaques in different neural segments of the brain has ben planned for the near future. Our study confirmed that total lesion volumes in chronic MS disease show a poor correlation to EDSS scores but show a positive correlation to neuropsychological scores. Therefore accurate total volume measurements of MS plaques using the developed semiautomatic segmentation technique helped us to evaluate the degree of neuropsychological impairment.

  20. Study of the maximal Abelian gauge in SU(2) Euclidean Yang-Mills theory in the presence of the Gribov horizon

    SciTech Connect

    Capri, M. A. L.; Lemes, V. E. R.; Sobreiro, R. F.; Sorella, S. P.; Thibes, R.

    2006-11-15

    We pursue the study of SU(2) Euclidean Yang-Mills theory in the maximal Abelian gauge by taking into account the effects of the Gribov horizon. The Gribov approximation, previously introduced in [M. A. L. Capri, V. E. R. Lemes, R. F. Sobreiro, S. P. Sorella, and R. Thibes, Phys. Rev. D 72, 085021 (2005).], is improved through the introduction of the horizon function, which is constructed under the requirements of localizability and renormalizability. By following Zwanziger's treatment of the horizon function in the Landau gauge, we prove that, when cast in local form, the horizon term of the maximal Abelian gauge leads to a quantized theory which enjoys multiplicative renormalizability, a feature which is established to all orders by means of the algebraic renormalization. Furthermore, it turns out that the horizon term is compatible with the local residual U(1) Ward identity, typical of the maximal Abelian gauge, which is easily derived. As a consequence, the nonrenormalization theorem, Z{sub g}Z{sub A}{sup 1/2}=1, relating the renormalization factors of the gauge coupling constant Z{sub g} and of the diagonal gluon field Z{sub A}, still holds in the presence of the Gribov horizon. Finally, we notice that a generalized dimension two gluon operator can be also introduced. It is BRST invariant on-shell, a property which ensures its multiplicative renormalizability. Its anomalous dimension is not an independent parameter of the theory, being obtained from the renormalization factors of the gauge coupling constant and of the diagonal antighost field.

  1. Dynamical systems theory and applications

    NASA Astrophysics Data System (ADS)

    Awrejcewicz, Jan

    2006-08-01

    The 7th International Conference devoted to "Dynamical Systems-Theory and Applications" hold in 8-11 December, 2003 in Łódź, Poland, and it was organized by the staff of Department of Automatics and Biomechanics of the Technical University of Łódź. It was financially supported by the Rector of the Technical University of Łódź and the Department of Education and Physical Culture of the Łódź City Hall. The members of the International Scientific Committee included: Igor V. Andrianov (Dniepropetrovsk), Jan Awrejcewicz (Łódź), Iliya Blekhman (Sankt Petersburg), Roman Bogacz (Warszawa), Dick van Campen (Eindhoven), Zbigniew Engel (Kraków), Lothar Gaul (Stuttgart), Józef Giergiel (Kraków), Michał Kleiber (Warszawa), Vadim A. Krysko (Saratov), Włodzimierz Kurnik (Warszawa), Claude-Henri Lamarque (Lyon), Leonid I. Manevitch (Moscow), Jan Osiecki (Warszawa), Wiesaw Ostachowicz (Gdańsk), Ladislav Pust (Prague), Giuseppe Rega (Rome), Tsuneo Someya (Tokyo), Zbigniew Starczewski (Warszawa), Eugeniusz Świtoński (Gliwice), Andrzej Tylikowski (Warszawa), Tadeusz Uhl (Kraków), Aleksander F. Vakakis (Illinois), Józef Wojnarowski (Gliwice).

  2. Extreme Planets

    NASA Technical Reports Server (NTRS)

    2006-01-01

    This artist's concept depicts the pulsar planet system discovered by Aleksander Wolszczan in 1992. Wolszczan used the Arecibo radio telescope in Puerto Rico to find three planets - the first of any kind ever found outside our solar system - circling a pulsar called PSR B1257+12. Pulsars are rapidly rotating neutron stars, which are the collapsed cores of exploded massive stars. They spin and pulse with radiation, much like a lighthouse beacon. Here, the pulsar's twisted magnetic fields are highlighted by the blue glow.

    All three pulsar planets are shown in this picture; the farthest two from the pulsar (closest in this view) are about the size of Earth. Radiation from charged pulsar particles would probably rain down on the planets, causing their night skies to light up with auroras similar to our Northern Lights. One such aurora is illustrated on the planet at the bottom of the picture.

    Since this landmark discovery, more than 160 extrasolar planets have been observed around stars that are burning nuclear fuel. The planets spotted by Wolszczan are still the only ones around a dead star. They also might be part of a second generation of planets, the first having been destroyed when their star blew up. The Spitzer Space Telescope's discovery of a dusty disk around a pulsar might represent the beginnings of a similarly 'reborn' planetary system.

  3. [Remarks on Leon Popielski's manuscript of his review of January Zubrzycki's qualifying thesis for professorship dating from 1915].

    PubMed

    Heimrath, T

    1994-01-01

    A review written by professor Leon Popielski from Lvov of the qualifying thesis for professorship of January Zubrzycki from Cracow is presented. The manuscript has been kept by professor Popielski's family. Zubrzycki finished his medical studies in Cracow in 1909. While writing his qualifying thesis entitled Placental Albumin Derivatives and their Toxic Properties in 1915 he was an assistant of Aleksander Rosner in the department of maternity and gynaecology of Jagiellonian University. In 1931 as a professor he became the head of the clinic and following the Second World War he was a professor at several faculties of medicine in Poland. He was an outstanding gynaecological surgeon, an author of a five volume atlas of gynaecological surgery. Professor Leon Popielski studied in S. Petersburg. He specialized in physiology. Since 1904 he was the head of the Chair of Pharmacologoy and Pharmacognosy at the Universitiy of Lvov. Popielski's intrest in Zubrzycki's work ensued his research on albumin metabolite effect. His appreciation of the work is expressed by the phrase "I read it with satisfaction". The review was written in 1919, belated by the war.

  4. Multilingual part-of-speech tagging with weightless neural networks.

    PubMed

    Carneiro, Hugo C C; França, Felipe M G; Lima, Priscila M V

    2015-06-01

    Training part-of-speech taggers (POS-taggers) requires iterative time-consuming convergence-dependable steps, which involve either expectation maximization or weight balancing processes, depending on whether the tagger uses stochastic or neural approaches, respectively. Due to the complexity of these steps, multilingual part-of-speech tagging can be an intractable task, where as the number of languages increases so does the time demanded by these steps. WiSARD (Wilkie, Stonham and Aleksander's Recognition Device), a weightless artificial neural network architecture that proved to be both robust and efficient in classification tasks, has been previously used in order to turn the training phase faster. WiSARD is a RAM-based system that requires only one memory writing operation to train each sentence. Additionally, the mechanism is capable of learning new tagged sentences during the classification phase, on an incremental basis. Nevertheless, parameters such as RAM size, context window, and probability bit mapping, make the multilingual part-of-speech tagging task hard. This article proposes mWANN-Tagger (multilingual Weightless Artificial Neural Network tagger), a WiSARD POS-tagger. This tagger is proposed due to its one-pass learning capability. It allows language-specific parameter configurations to be thoroughly searched in quite an agile fashion. Experimental evaluation indicates that mWANN-Tagger either outperforms or matches state-of-art methods in accuracy with very low standard deviation, i.e., lower than 0.25%. Experimental results also suggest that the vast majority of the languages can benefit from this architecture. PMID:25795509

  5. High-Cadence Timing Observations of an Exoplanet-Pulsar System, PSR B1257+12

    NASA Astrophysics Data System (ADS)

    Rivera, Rudy; Wolszczan, Aleksander; Seymour, Andrew

    2016-01-01

    The pulsar B1257+12 was regularly observed and timed by Aleksander Wolszczan from its discovery in 1992 up to 2008. It is the first example of an exoplanet-pulsar system, and is modeled to consist of three planets. At the time, long term timing programs lacked the sensitivity to measure effects that low mass, short orbital period bodies would have on the pulse arrival times (TOA's) and its timing residuals. Newer technology, like the PUPPI backend at Arecibo, allows for the exploration of an untouched planet parameter space. The project consisted of conducting precise timing using PUPPI, taking two hour long observations at 327 MHz, 430 MHz, and L-Band Wide (LBW) frequencies for 25 days. The data is processed in order to obtain standard profiles and TOA's that would be introduced into TEMPO2, allowing data point manipulation by fitting them for known pulsar parameters to acquire post fit residuals with expected precisions below 1 μs. The observations yielded residuals ranging between 0.40 μs and 1.89 μs for 430 MHz and 327 MHz, while LBW resulted in values higher than 4.0 μs, which is attributed to the many radio frequency interference (RFI) bands present in the data. Combining the newly and previously acquired data revealed a decrease in the dispersion measure (DM), from 10.16550 pc/cm3 to 10.15325 pc/cm3, since the pulsar was last observed, which allowed a correction for the effects of interstellar scintillation, which are most noticed at 327 MHz.

  6. EDITORIAL: International Conference on Finite Fermionic Systems: Nilsson Model 50 Years

    NASA Astrophysics Data System (ADS)

    2006-06-01

    a high standing scientific programme. Finally, we thank the Royal Swedish Academy of Sciences through its Nobel Committee for Physics, the Royal Physiographical Society in Lund, the Technical Faculty (LTH) at Lund University, and the Swedish Research Council (VR) for financial support. Sven Aberg, Ragnar Bengtsson, Ingemar Ragnarsson and Stephanie Reimann Department of Mathematical Physics, Lund Institute of Technology, S-22100 Lund, Sweden Joakim Cederkäll, Claes Fahlander and Dirk Rudolph Division of Nuclear Physics, Lund University, S-22100 Lund, Sweden

  7. [The topic of the intelligentsia in the works of Polish sociologists in the inter-war period].

    PubMed

    Górski, Piotr

    2007-01-01

    The paper deals with the issue of Polish intelligentsia in the inter-war period (1918-1939). In the introduction, the author presents various approaches that can be adopted in investigating this problem, approaches that focus on the analysis of the social awareness of that social stratum and on its transformations form the perspective of social structure. Further on in the paper, the author points to the image of Polish intelligentsia of that period as it emerges from an analysis of the feature writing of the period, i.e. to the image of the intelligentsia's self-awareness, and to the image that is revealed in the writings of historians of the inter-war period. Finally, in the main section of the paper, the author presents the views of four sociologists who lived and worked in the interwar period who dealt with the issue of the Polish intelligentsia: Florian Znaniecki (1882-1958), Aleksander Hertz (1895-1983), Stanisław Rychliński (1903-1944) and Józef Chałasiński (1904-1979). The views of those sociologists are juxtaposed with opinions of journalists and historians, to see how valuable and original such views were. Their views on the intelligentsia are also analysed against the background of the developments in sociology of that period, of the areas or interest of the sociologists involved, and of the theoretical frameworks which they followed. The sociologists' research on the intelligentsia can be seen as part of a wider range of studies on transformations in culture (Znaniecki, Hertz) and social structure (Rychliński, Chałasiński). All four sociologists pointed to the changes that the Polish intelligentsia was subject to and to the problems involved in implementing its leadership role. Apart from Chałasiński, the sociologists appreciated the positive role of the intelligentsia in Polish society and indicated the need to take measures aimed at reconstructing the paths of advancement into the social elite, a great role in which was attributed to

  8. PREFACE: First Latin-American Conference on Bioimpedance (CLABIO 2012)

    NASA Astrophysics Data System (ADS)

    Bertemes Filho, Pedro

    2012-12-01

    . In making this conference possible, we want to acknowledge our deep appreciation for the financial support of FAPESC (Foundation for Research and Innovation of Santa Catarina), CAPES (Coordination for the Improvement of Higher Level -or Education- Personnel) and also express our sincere thanks to the many individuals who contributed their time and diligence to making this conference possible. Our special thanks go to the Santa Catarina State University for contributing time and effort to organizing the conference. We also wish to express our thanks to Professors Ana Watanabe and Fabricio Noveletto for helping with the registration process, the conference desk and the diverse and sundry details that are the part of any event of this kind. We would like also to thank all of the invited speakers and the members of the Program Committee, and wopuld like to express our gratitude to the Technological Institute of Joinville (FITEJ) for their technical co-sponsorship. We very much appreciate Orjan Martinsen, Uwe Pliquett, Fernando Martinez Seoane, Raul Gonzalez Lima, Marcio Nogueira de Souza and Carlos Augusto Gonzalez Correa for delivering keynote talks at the conference. And we would like to extend an enthusiastic round of thanks to all of our conference authors for their excellent contributions; to all the session chairs for their effort and enthusiasm; and to all the International Program Committee members and referees for their time and expertise in the paper review. Particular thanks go to Emiliano Amarante Veiga and other members of the CLABIO2012 Secretariat and organizing team for their time and outstanding work. List of committees General Chair Professor Pedro Bertemes Filho (Santa Catarina State University) Pedro Bertemes Filho Technical Program Chairs Dr Marcio Nogueira de Souza (Rio de Janeiro Federal University) Local Arrangement Chair Professor Aleksander Paterno (Santa Catarina State University) Professor Fabrício Noveletto (Santa Catarina State University

  9. Obituary: William Gordon (1918-2010)

    NASA Astrophysics Data System (ADS)

    Terzian, Yervant

    2011-12-01

    atmospheric section to investigate the changes in the physical parameters of the ionosphere. Bill Gordon, in 1966, moved to Rice University in Houston, Texas, where he was a Distinguished Professor and Senior Administrator (Dean, Provost and Vice President). The Arecibo Ionospheric Observatory in 1970 was designated as 'The National Astronomy and Ionosphere Center' (NAIC), and began to be funded as a National Center by the National Science Foundation. Cornell has remained the managing institution since that time. Early in the 1970s a grant from the NSF made it possible to replace the surface of the telescope with perforated rigid panels allowing it to operate at least up to 5000 MHz. In the 1990s the long imperfect line feeds were replaced by a complex Gregorian system that greatly increased the sensitivity of the telescope. This allowed the radiation to be collected at a focal point rather than via a long line. These and other major improvements have kept the telescope as the most sensitive radio/radar telescope in the world. Observations of pulsars at Arecibo resulted in the 1993 Nobel Prize in Physics to Joseph Taylor and Russell Hulse who indirectly showed that gravitational waves exist, as Albert Einstein's general theory of relativity predicts. In 1990 Aleksander Wolszczan discovered a special pulsar and he was able to show that it was surrounded by earth size planets. The exotic and photogenic giant radar/radio telescope has also been featured in prominent movies such as the James Bond 'Golden Eye' in 1995, and Carl Sagan's 'Contact' in 1997. Bill's many graduate students from Cornell and Rice, simply adored him. One of his students, Dr. Richard A. Behnke, has said 'Simply he was the greatest man I have known'. Bill was married to Elva Freile Gordon for 61 years. Elva died in 2001. Bill later remarried with Elizabeth Bolgiano Gordon. In his career Bill received many awards. He was a member of the National Academy of Sciences and the National Academy of Engineering, and

  10. Obituary: William Gordon (1918-2010)

    NASA Astrophysics Data System (ADS)

    Terzian, Yervant

    2011-12-01

    atmospheric section to investigate the changes in the physical parameters of the ionosphere. Bill Gordon, in 1966, moved to Rice University in Houston, Texas, where he was a Distinguished Professor and Senior Administrator (Dean, Provost and Vice President). The Arecibo Ionospheric Observatory in 1970 was designated as 'The National Astronomy and Ionosphere Center' (NAIC), and began to be funded as a National Center by the National Science Foundation. Cornell has remained the managing institution since that time. Early in the 1970s a grant from the NSF made it possible to replace the surface of the telescope with perforated rigid panels allowing it to operate at least up to 5000 MHz. In the 1990s the long imperfect line feeds were replaced by a complex Gregorian system that greatly increased the sensitivity of the telescope. This allowed the radiation to be collected at a focal point rather than via a long line. These and other major improvements have kept the telescope as the most sensitive radio/radar telescope in the world. Observations of pulsars at Arecibo resulted in the 1993 Nobel Prize in Physics to Joseph Taylor and Russell Hulse who indirectly showed that gravitational waves exist, as Albert Einstein's general theory of relativity predicts. In 1990 Aleksander Wolszczan discovered a special pulsar and he was able to show that it was surrounded by earth size planets. The exotic and photogenic giant radar/radio telescope has also been featured in prominent movies such as the James Bond 'Golden Eye' in 1995, and Carl Sagan's 'Contact' in 1997. Bill's many graduate students from Cornell and Rice, simply adored him. One of his students, Dr. Richard A. Behnke, has said 'Simply he was the greatest man I have known'. Bill was married to Elva Freile Gordon for 61 years. Elva died in 2001. Bill later remarried with Elizabeth Bolgiano Gordon. In his career Bill received many awards. He was a member of the National Academy of Sciences and the National Academy of Engineering, and