Succinate and malate improve development of hamster eight-cell embryos in vitro: Confirmation of viability by embryo transfer

The in vitro development of hamster preimplantation embryos is supported by non-glucose energy substrates. To investigate the importance of embryonic metabolism, influence of succinate and malate on the development of hamster 8-cell embryos to blastocysts was examined using a chemically defined protein-free modified hamster embryo culture medium-2 (HECM-2m). There was a dose-dependent influence of succinate on blastocyst development; 0.5 mM succinate was optimal (85.1% ± 3.9 vs. 54.5% ± 3.5). In succinate-supplemented HECM-2m, blastocyst development was reduced by omission of lactate (68.5% ± 7.2), but not pyruvate (85.8% ± 6.2) or glutamine (84.1% ± 2.1). Succinate along with either glutamine or lactate or pyruvate poorly supported blastocyst development (28%-58%). Malate also stimulated blastocyst development; 0.01 mM malate was optimal (86.3% ± 2.8). Supplementation of both succinate and malate to HECM-2m supported maximal (100%) blastocyst development, which was inhibited 4-fold by the addition of glucose/phosphate. The mean cell numbers (MCN) of blastocysts cultured in succinate-supplemented HECM-2m was higher (28.3 ± 1.1) than it was for those cultured in the absence of glutamine or pyruvate (range 20-24). The MCN was the highest (33.4 ± 1.6) for blastocysts cultured in succinate-malate-supplemented HECM-2m followed by those in succinate (28.3 ± 1.1) or malate (24.7 ± 0.5) supplemented HECM-2m. Embryo transfer experiments showed that 29.8% (±4.5) of transferred blastocysts cultured in succinate-malate-supplemented HECM-2m produced live births, similar (P > 0.1) to the control transfers of freshly recovered 8-cells (33.5% ± 2.0) or blastocysts (28.9% ± 3.0). These data show that supplementation of succinate and malate to HECM-2m supports 100% development of hamster 8-cell embryos to high quality viable blastocysts and that non-glucose oxidizable energy substrates are the most preferred components in hamster embryo culture medium. Mol. Reprod. Dev. 47:440-447, 1997. © 1997 Wiley-Liss, Inc.

Improving diagnosis of tumor-induced osteomalacia with gallium-68 DOTATATE PET/CT

Context: Tumor-induced osteomalacia (TIO) is a rarely diagnosed disorder presenting with bone pain, fractures, muscle weakness, and moderate-to-severe hypophosphatemia resulting from fibroblast growth factor 23-mediated renal phosphate wasting. Tumors secreting fibroblast growth factor 23 are often small and difficult to find with conventional imaging. Objective: We studied the utility of 68Ga-DOTA-octreotate (DOTATATE) somatostatin receptor positron emission tomography (PET)/computed tomography (CT) imaging in the diagnosis of TIO. Design and Setting: A multicenter case series was conducted at tertiary referral hospitals. Patients and Methods: Six patients with TIO diagnosed between 2003 and 2012 in Australia were referred for DOTATATE PET imaging. We reviewed the clinical history, biochemistry, imaging characteristics, histopathology, and clinical outcome of each patient. Results: Each case demonstrated delayed diagnosis despite severe symptoms. DOTATATE PET/CT imaging demonstrated high uptake and localized the tumor with confidence in each case. After surgical excision, there was resolution of clinical symptoms and serum phosphate, except in one patient who demonstrated residual disease on PET/CT. All tumors demonstrated high somatostatin receptor subtype 2 cell surface receptor expression using immunohistochemistry. Conclusions: In patients with TIO, DOTATATE PET/CT can successfully localize phosphaturic mesenchymal tumors and may be a practical first step in functional imaging for this disorder. Serum phosphate should be measured routinely in patients with unexplained muscle weakness, bone pain, or stress fractures to allow earlier diagnosis of TIO. - See more at: http://press.endocrine.org/doi/abs/10.1210/jc.2012-3642#sthash.eXD0CopL.dpuf

Effects of unilateral vocal fold paralysis treatment with fascia augmentation on airflow mechanics, tracheal sounds and voice acoustics

Data on the influence of unilateral vocal fold paralysis on breathing, especially other than information obtained by spirometry, are relatively scarce. Even less is known about the effect of its treatment by vocal fold medialization. Consequently, there was a need to study the issue by combining multiple instruments capable of assessing airflow dynamics and voice. This need was emphasized by a recently developed medialization technique, autologous fascia injection; its effects on breathing have not previously been investigated. A cohort of ten patients with unilateral vocal fold paralysis was studied before and after autologous fascia injection by using flow-volume spirometry, body plethysmography and acoustic analysis of breathing and voice. Preoperative results were compared with those of ten healthy controls. A second cohort of 11 subjects with unilateral vocal fold paralysis was studied pre- and postoperatively by using flow-volume spirometry, impulse oscillometry, acoustic analysis of voice, voice handicap index and subjective assessment of dyspnoea. Preoperative peak inspiratory flow and specific airway conductance were significantly lower and airway resistance was significantly higher in the patients than in the healthy controls (78% vs. 107%, 73% vs. 116% and 182% vs. 125% of predicted; p = 0.004, p = 0.004 and p = 0.026, respectively). Patients had a higher root mean square of spectral power of tracheal sounds than controls, and three of them had wheezes as opposed to no wheezing in healthy subjects. Autologous fascia injection significantly improved acoustic parameters of the voice in both cohorts and voice handicap index in the latter cohort, indicating that this procedure successfully improved voice in unilateral vocal fold paralysis. Peak inspiratory flow decreased significantly as a consequence of this procedure (from 4.54 ± 1.68 l to 4.21 ± 1.26 l, p = 0.03, in pooled data of both cohorts), but no change occurred in the other variables of flow-volume spirometry, body-plethysmography and impulse oscillometry. Eight of the ten patients studied by acoustic analysis of breathing had wheezes after vocal fold medialization compared with only three patients before the procedure, and the numbers of wheezes per recorded inspirium and expirium increased significantly (from 0.02 to 0.42 and from 0.03 to 0.36; p = 0.028 and p = 0.043, respectively). In conclusion, unilateral vocal fold paralysis was observed to disturb forced breathing and also to cause some signs of disturbed tidal breathing. Findings of flow volume spirometry were consistent with variable extra-thoracic obstruction. Vocal fold medialization by autologous fascia injection improved the quality of the voice in patients with unilateral vocal fold paralysis, but also decreased peak inspiratory flow and induced wheezing during tidal breathing. However, these airflow changes did not appear to cause significant symptoms in patients.

Primary Dislocation of the Patella : A Clinical Study

A total of 177 patients with primary dislocation of the patella (PDP) were admitted to two trauma centers in Helsinki, Finland during 1991 to 1992. The inclusion criteria were: 1. Acute (≤14 days old) first-time lateral dislocation of the patella. 2. No previous knee operations or major knee injuries. 3. No ligament injuries to be repaired. 4. No osteochondral fractures requiring fixation. 50 patients were excluded. 30 of these excluded patients would have met the inclusion criteria, 19 patients received treatment by consultants not involved in the study, 7 refused to participate and 4 had an erroneous randomization. 127 patients including, 82 females, were then randomized to have either tailor-made operative procedure (group O) or conservative treatment (group C). The aftercare was similar for both groups. The mean age of the patients was 20 (9-47) years. All patients were subjected to analysis of trauma history (starting position and knee movement during the dislocation), examination under anesthesia (EUA) and arthroscopy. 70 patients (52 females) were randomized by their odd year of birth to operative group O and 57 patients (30 females) by their even year of birth to conservative group C. The diagnosis of PDP was based on locked dislocation in 68 patients, on dislocatability in EUA in 47 patients, and on subluxation in EUA combined with typical intra-articular lesions in 12 patients. In group O, 63 patients had exploration of the injuries on the medial side of the knee and tailor made reconstruction added with lateral release in 54 cases. The medial injury was operated by suturing in 39 patients, by duplication in 18 patients and by additional augmentation of the medial patellofemoral ligament (MPFL) with adductor magnus tenodesis in 6 patients. 7 patients, without locking in trauma history and only subluxation in EUA had only lateral release for realignment. In adductor magnus tenodesis the proximal end of the distal tendinous part was rerouted to the upper medial border of the patella. In the conservative group C, the treatment was adjusted to the extent of patellar displacement in EUA. Patients with dislocation in EUA had 3 weeks’ immobilization with the knee in slight flexion. Mobilization was started with a soft patellar stabilizing orthosis (PSO) used for additional three weeks. The patients with subluxation in EUA wore an orthosis for six weeks. The aftercare was similar in group O. The outcome was similar in both groups. After an average of 25 (20-45) months´ follow-up, the subjective result was better in group C in respect of the mean Hughston VAS knee score (87 for group O and 90 for group C, p=0.04, visual analog scale), but similar in terms of the patient’s own overall opinion and the mean Lysholm II knee score. Recurrent instability episodes occurred in 18 patients in group O and in 20 patients in group C. After an average of 7 (6-9) years´ follow-up, the groups did not show statistical difference either in respect of the patient’s own overall opinion, or the mean Hughston VAS and Kujala knee scores. The proportions of stable patellae was 25/70 (36%) in group O and 17/57 (30%) in group O (p=0.5). In a multivariate risk analysis, there was a correlation between low Kujala score (<90) as dependent parameter and female gender (OR: 3.5; 95% CI: 1.4-9.0), and loose body on primary radiographs (OR: 4.1; 95% CI: 1.2-15). Recurrent instability correlated with young age at the time of PDP (OR: 0.9; 95% CI: 0.8-1.0/year). Girls with open tibial apophysis had the worst prognosis for instability (88%; 95% CI: 77-98). The most common mechanisms in trauma history of the patients were movement to flexion from a straight start (78%) and movement to extension from a well-bent start (8%). Spontaneous relocation of the patella had taken place in 13/39 of girls, in 11/21 of boys, in 26/42 of women and in 17/24 of men with skeletal maturity of the tibia. The dislocation in EUA was non-rotating in 96/126 patients followed by outward rotating dislocation in 14/126 patients. Operative treatment policy in PDP is not recommended. Locking tendency of the patella in PDP depended on the skeletal maturation. Recurrence rate after PDP was higher than expected.

Optimal Reservoir Operation for Flood Control Using Folded Dynamic Programming

Folded Dynamic Programming (FDP) is adopted for developing optimalnreservoir operation policies for flood control. It is applied to a case study of Hirakud Reservoir in Mahanadi basin, India with the objective of deriving optimal policy for flood control. The river flows down to Naraj, the head of delta where a major city is located and finally joins the Bay of Bengal. As Hirakud reservoir is on the upstream side of delta area in the basin, it plays an important role in alleviating the severity of the flood for this area. Data of 68 floods such as peaks of inflow hydrograph, peak of outflow from reservoir during each flood, peak of flow hydrograph at Naraj and d/s catchment contribution are utilized. The combinations of 51, 54, 57 thousand cumecs as peak inflow into reservoir and 25.5, 20, 14 thousand cumecs respectively as,peak d/s catchment contribution form the critical combinations for flood situation. It is observed that the combination of 57 thousand cumecs of inflow into reservoir and 14 thousand cumecs for d/s catchment contribution is the most critical among the critical combinations of flow series. The method proposed can be extended to similar situations for deriving reservoir operating policies for flood control.

Effect of cold exposure on the metabolism of ubiquinone in the rat

1. Accumulation of ubiquinone in the livers of rats exposed to a cold environment was shown to be due to both decreased catabolism during the entire experimental period and increased synthesis during an intermediate stage (10–20 days). 2. The increased endogenous synthesis in the cold-exposed rats was eliminated when ubiquinone accumulated in the liver after exposure for 40 days (coinciding with cclimatization), or by absorption of the exogenous dietary supply, possibly by the mechanism of end-product regulation.

Käännösten historia, kirjallisuushistoria, kulttuurihistoria

Abstract (The history of translations, the history of literature, the history of culture): The article first introduces the extensive exhibition catalogue published in Marbach in 1982, which illustrates the wideranging interest for translations during the epoch of Goethe, and secondly it gives an overview of research on the history of translations conducted in Finland. Furthermore, the relevance of the history of translations both for the history of literature and for the history of culture is discussed. The history of literature is interpreted in terms of four various forms: the history of culture and the history of ideas, or as a part of them; the history of the literary field, or as the history of the change of this field (the sociology of literature); the history of different styles; and as the history of individual authors. In all these fields, translations represent interesting research material: they function as clear indicators of various phenomena in the history of literature. In the history of translation, translators are also highlighted as profound but often forgotten individuals with cultural impact. At the end of the article, a brief case study is presented with focus on a new interest in Spanish literature in 19th century Finland, with a background in the German Romanticism and its interest for Spain.

The determinants of sexually transmitted infections among reproductive age women in St. Petersburg, Estonia and Finland

OBJECTIVES: Sexually transmitted infections' (STIs) rate vary in St. Petersburg, Estonia and Finland; the aim was to compare the determinants of self-reported sexually transmitted infections in these areas. METHODS: Data from four population-based questionnaire surveys were used (Finland in 1992 and 1999; St. Petersburg in 2003; Estonia in 2004). With the exception of the 1992 Finnish survey (interview) all were postal surveys, with 1,070 respondents in Finland (78 and 52% response rates), 1,147 (68%) in St. Petersburg, and 5,190 (54%) in Estonia. RESULTS: Risky sexual behaviours were equally common in the three areas and the determinants were the same. Women with an STIs history more often had had their first sexual intercourse when aged under 18, had not used condom during first intercourse, had a high number of lifetime or previous year sexual partners. However, marital status and education were not similar determinants. Cohabiting and well-educated women in Finland were more likely to have STIs while in other areas the associations found were not statistically significant. CONCLUSIONS: Risky behaviour predicts STIs, but does not explain the varying rates of STIs between areas.

Samat säännöt, eri lopputulos - Vertaileva tapaustutkimus toisen sähkömarkkinadirektiivin toimeenpanosta Suomessa ja Ranskassa

Tutkimuksen kohde on toisen sähkömarkkinadirektiivin 2003/54/EY toimeenpano Suomessa ja Ranskassa. Direktiivin tavoitteena oli tarjota eurooppalaisille kuluttajille mahdollisuus valita sähköntoimittajansa heinäkuusta 2007 alkaen ja antaa kaikille energiayhtiöille mahdollisuus päästä kilpailemaan EU:n jäsenvaltioiden kansallisille markkinoille. Tässä tutkimuksessa tarkastellaan, miten Suomi ja Ranska toimeenpanivat tärkeimmät direktiivin vähittäismarkkinoita koskevat vaatimukset. Vaatimukset liittyvät markkinoiden avaamiseen, sähköverkkoon pääsyyn, verkkoliiketoiminnan valvontamalliin, julkisen palvelun velvoitteisiin sekä verkkoliiketoimintojen eriyttämiseen sähkön tuotannosta ja myynnistä. Tutkimuksessa selvitetään, missä määrin kyseiset vaatimukset saavutettiin ja miten tätä voidaan selittää. Toimeenpanot analysoidaan kolmen EU-toimeenpanotutkimuksen teorian avulla, jotka ovat yhteensopimattomuus, veto-pisteet ja kuuliaisuuden maailmat. Teoreettinen viitekehys rakennetaan yleisen toimeenpanotutkimuksen top-down -lähestymistapojen pohjalta. Tutkimusstrategiana on tapaustutkimus. Tutkimuksen tärkeimmät lähteet ovat viisi teemahaastattelua, sähkömarkkinoita koskeva akateeminen kirjallisuus, Euroopan unionin toimielinten raportit ja kohdemaiden viranomaistekstit. Tutkimuksen mukaan sekä Suomi että Ranska siirsivät direktiivin vähittäismarkkinoita koskevat vaatimukset kansalliseen lainsäädäntöönsä hieman määräajasta myöhässä. Kuitenkin maiden välillä on huomattavia eroja vaatimusten todellisessa toteutumisessa. Suomessa vaatimukset toteutuvat pääasiallisesti hyvin. Ranskassa tosiasiallinen markkinoiden avoimuus ja toimivuus voidaan kyseenalaistaa hintasääntelyn ja valtionyhtiö Électricité de Francen (EDF) hallitsevan markkina-aseman takia. EU-toimeenpanotutkimuksen teorioista Suomen ja Ranskan toimeenpanojen kulkua selittävät parhaiten yhteensopivuus ja kuuliaisuuden maailmat. Yhteensopivuuden teoriaa käyttämällä havaitaan, että molempien maiden toimeenpanoja selittää merkittävästi maiden sähkömarkkinoiden historia ja toimeenpanoa edeltänyt kehitys markkinoiden avaamisessa. Suomen toimeenpanon sujuvuudessa oli pitkälti kysymys siitä, että olennaisimmat direktiivin vaatimukset oli jo toteutettu ennen toisen sähkömarkkinadirektiivin toimeenpanoa. Suomalaisilla sähkönkäyttäjillä on ollut mahdollisuus valita vapaasti sähköntoimittajansa jo vuodesta 1997. Ranskan toimeenpanossa vanha monopolijärjestelmä tuli sopeuttaa uusien EU-sääntöjen mukaiseksi, mikä näkyi erityisesti monopoli-toimija EDF:n asemaan ja säädeltyihin sähkönhintoihin liittyvinä muutospaineina. Euroopan komission painostuksella havaittiin olevan merkittävä rooli Ranskan toimeenpanon käynnistymiselle. Tutkimus vahvistaa Suomen kuuluvan myös sähkömarkkinalainsäädännön toimeenpanon osalta kuuliaisuuden maailmat -typologiassa lainkuuliaisuuden maailmaan ja Ranskan toimeenpanon laiminlyönnin maailmaan. Typologian oletukset siitä, että EU-lainsäädännön toimeenpanoa Suomessa ohjaa kuuliaisuuden kulttuuri ja Ranskassa olettamus kansallisten toimintatapojen paremmuudesta, vahvistuivat. Veto-pisteet -teorian avulla havaittiin, että molemmissa maissa tärkeimmät toimeenpanon sisältöön liittyvät ratkaisut tehtiin käytännössä lakia valmistelleessa ministeriössä. Teorian vastaisesti toimeenpanon kesto ei tutkittavissa tapauksissa kuitenkaan riippunut instituutioiden tarjoamien päätöksenteon vaiheiden lukumäärästä, kuten lainsäädäntöprosessin vaiheiden paljoudesta vaan poliittisista tekijöistä, kuten hallituspuolueiden enemmistöstä parlamentissa.

Diplomatian historiapolitiikka: Historia-argumenttien käyttö Kosovon kysymyksessä 1998-2010

Tutkielmassa tarkastellaan yhtä kansainvälisten suhteiden ja diplomatian lähihistorian pulmallisinta haastetta, kysymystä Kosovon asemasta vuosina 1998–2010. Se oli yksi keskeisimmistä 1990-luvun Jugoslavian hajoamissotien solmukohdista ja suhtautuminen siihen jakaa edelleen kansainvälisen yhteisön rivejä maailmanlaajuisesti. Tapaus on erityisen mielenkiintoinen myös nationalismin ja historiapolitiikan kannalta, sillä Kosovo on sekä albaanien että serbien kansallisen identiteetin ydinaluetta. Varhaishistorian myytit ja etnohistorialliset kertomukset ovat olleet tärkeässä asemassa lukuisissa aluetta koetelleissa konflikteissa. Tutkimuksen lähtökohtana on historiapolitiikan lähestymistavan välttämättömyys kansainvälisesti politisoituneen ”Kosovon kysymyksen” ymmärtämisessä. Historiapolitiikan teoreettisen viitekehyksen soveltuvuuden koettelu diplomatian argumentaation ja kansainvälisten suhteiden analysoinnissa on olennainen osa tutkimuksen tehtävänasettelua, sillä varsinkaan Suomessa ei vastaavaa tutkimusta ole ennen tehty. Samalla tutkimuksen tavoitteena on luokitella, analysoida ja vertailla eri valtioiden diplomaattisten historia-argumenttien käyttöä Kosovon kysymyksen yhteydessä sekä tarkastella näiden argumenttien kautta suhtautumista kansallisiin etnohistorian tulkintoihin ja niiden käyttöön 1990-luvun retoriikassa. Tutkielman tärkeimpiä alkuperäislähteitä ovat YK:n turvallisuusneuvoston Kosovoa käsittelevien istuntojen pöytäkirjat vuosilta 1998–2010 sekä huhti- ja heinäkuussa 2009 YK:n kansainväliselle tuomioistuimelle (ICJ) toimitetut, Kosovon itsenäisyysjulistuksen lainmukaisuutta käsittelevät, kirjalliset lausunnot ja kommentit. Tutkimuskirjallisuuden osalta tutkielman tärkeimpiä lähteitä ovat muun muassa Oliver Jens Schmittin, Marc Wellerin ja Pekka Visurin teokset sekä monet albaanien ja serbien kansallisia historiakäsityksiä ilmentävät teokset. Tutkielman metodologisena apuvälineenä on sovellettu suomalaisessa tutkimuksessa aikaisemmin hyvin vähän käytettyä Karl-Georg Faberin mallia historian poliitisen käytön kategorisoimiseksi. Faberin mallia käytetään paitsi historia-argumenttien luokittelun kehikkona, myös ajattelua ohjaavana historianfilosofisena kolmitasoisena mallina. Sitä on täydennytty Chaïm Perelmanin ja Lucie Olbrechts-Tytecan retoriikan tutkimuksen teorialla. Tutkimuksen tärkeimpiä johtopäätöksiä on historiapolitiikan näkökulman ja Faberin mallin hedelmällisyyden toteaminen diplomatian argumentaation analysoinnissa. Samalla tutkimus osoittaa, että historia-argumenteilla oli (ja on edelleen) Kosovon kysymyksessä oma erityinen roolinsa, joka vaihteli ajallisesti ja teemoittain. Toisaalta kansalliset historiakäsitykset, kuten käsitys omasta kansasta uhrina, näkyivät argumenteissa selvästi, toisaalta pyrkimyksenä oli vältellä nationalistiseksi tulkittavia historia-argumentteja. Lisäksi monissa argumenteissa vaaditiin väkivaltaisen historian jättämistä taakse eurooppalaisen tulevaisuuden toivossa.

Uloimmalla rannalla : Luotsi- ja majakkamiesperheet asemayhdyskunnissaan

The subject of the present research is historical lighthouse and maritime pilot stations in Finland. If one thinks of these now-abandoned sites as an empty stage, the dissertation aims to recreate the drama that once played out there. The research comprises three main themes. The first, the family problematic, focuses on the relationship between the family members concerned and the public service positions held, as well as the islands on which these people were stationed. The role of the male actors becomes apparent through an examination of the job descriptions of pilots and lighthouse keepers, but the role of the wives appears more problematic: running a household and the insularity of the community came with their own challenges, and the husbands were away for much of the time. In this context the children emerge as crucial. What was their role in the family of a public official? What were the effects of having to move to the mainland for school? The second theme is the station community. A socioecological examination is undertaken which defines the islands as plots allowing the researcher to study the social behaviours of the isolated communities in question. The development of this theme is based on interpretations of interviews revealing starkly opposed views on the existing neighbourly relations. The premise is that social friction is inevitable among people living within close proximity of each other, and the study proceeds to become an analysis that seeks to uncover the sociocultural strategies designed to control the risks of communal living either by creating distance between neighbours or by enhancing their mutual ties. In connection with this, the question of why some neighbourhoods were open and cooperative while others were restrained and quarrelsome is addressed. Finally, the third main theme discusses the changes in piloting and lighthouse keeping that took place increasingly numerous towards the end of the 20th century. How did individuals react to the central management s technocratic strivings and rationalisations, such as the automation of lighthouses and the intense downsizing of the network of pilot stations? How was piloting, previously very comprehensive work, splintered into specialisations, and how did the entire occupation of lighthouse keeping lose its status before completely disappearing, as the new technology took over?

Characterization of hot deformation behavior of brasses using processing maps: Part II. β Brass and α-β brass

The hot deformation behaviors of β brass in the temperature range of 550°C to 800°C and α-β brass in the temperature range of 450°C to 800°C have been characterized in the strain rate range of 0.001 to 100 s−1 using processing maps developed on the basis of the Dynamic Materials Model. The map for β brass revealed a domain of superplasticity in the entire temperature range and at strain rates lower than 1 s−1, with a maximum efficiency of power dissipation of about 68 pct. The temperature variation of the efficiency of power dissipation in the domain is similar to that of the diffusion coefficient for zinc in β brass, confirming that the diffusion-accommodated flow controls the superplasticity. The material undergoes microstructural instability in the form of adiabatic shear bands and strain markings at temperatures lower than 700°C and at strain rates higher than 10 s−1. The map for α-β brass revealed a wide domain for processing in the temperature range of 550°C to 800°C and at strain rates lower than 1 s−1, with a maximum efficiency of 54 pct occurring at about 750°C and 0.001 s−1. In the domain, the α phase undergoes dynamic recrystallization and controls the hot deformation of the alloy, while the β phase deforms superplastically. At strain rates greater than 1 s−1, α-β brass exhibits microstructural instabilities manifested as flow rotations at lower temperatures and localized shear bands at higher temperatures.

“And now to the rest of the trash…” Representations of begging Roma and an ideal society in two Nordic newspapers

Since begging East European Roma became a common view in the streets of larger Nordic cities, vivid discussions about their presence and activities have been carried out in the mass media. This thesis examines the public debates in Finland and Norway through a discursive analysis and comparison of press content from the two countries. The aim of the study is firstly to identify the prominent discourses which construct certain images of the beggars, as well as the elements and internal logics that these discourses are constructed around. But in addition to scrutinizing representations of the Roma, also an opposite perspective is applied. In accordance with the theoretical concept of ‘othering’, debates about ‘them’ are assumed to simultaneously reveal something significant about ‘us’. The second research question is thus what kind of images of the ideal Finnish and Norwegian societies are reflected in the data, and which societal values are salient in these images. The analysis comprises 79 texts printed in the main Finnish and Norwegian quality newspapers; Helsingin Sanomat and Aftenposten. The data consists of news articles, editorials, columns and letters to the editor from a three-month period in the summer of 2010. The analysis was carried out within the theoretical and methodological framework of critical discourse analysis as outlined by Norman Fairclough. A customized nine-step coding scheme was developed in order to reach the most central dimensions of the texts. Seven main discourses were identified; the Deprivation-solidarity, Human rights, Order, Crime, Space and majority reactions, Authority control, and Authority critique discourse. These were grouped into two competing normative stances on what an ideal society looks like; the exclusionary and the inclusionary stance. While the exclusionary stance places the begging Roma within a frame of crime, illegitimate use of public space and threat to the social order, the other advocates an attitude of solidarity and humanitarian values. The analysis points to a dominance of the former, although it is challenged by the latter. The Roma are “individualized” by quoting and/or presenting them by name in a fair part of the Finnish news articles. In Norway, the opposite is true; there the beggars are dominantly presented as anonymous and passive. Overall, the begging Roma are subjected to a double bind as they are faced with simultaneous expectations of activity and passivity. Theories relating to moral panics and ‘the good enemy’ provide for a deepened understanding of the intensity of the debates. Keywords: East European Roma, begging, media, newspapers, Helsingin Sanomat, Aftenposten, critical discourse analysis, Norman Fairclough, othering, ideal society, moral panics, good enemy, double bind, Finland, Norway

Critical properties of the double-exchange ferromagnet Nd(0.6)Pb(0.4)MnO(3)

Results of a study of dc magnetization M(T,H), performed on a Nd(0.6)Pb(0.4)MnO(3) single crystal in the temperature range around T(C) (Curie temperature) which embraces the supposed critical region \epsilon\=\T-T(C)\/T(C)less than or equal to0.05 are reported. The magnetic data analyzed in the critical region using the Kouvel-Fisher method give the values for the T(C)=156.47+/-0.06 K and the critical exponents beta=0.374+/-0.006 (from the temperature dependence of magnetization) and gamma=1.329+/-0.003 (from the temperature dependence of initial susceptibility). The critical isotherm M(T(C),H) gives delta=4.54+/-0.10. Thus the scaling law gamma+beta=deltabeta is fulfilled. The critical exponents obey the single scaling equation of state M(H,epsilon)=epsilon(beta)f(+/-)(H/epsilon(beta+gamma)), where f(+) for T>T(C) and f(-) for T

Estimation of heavy rainfall during cyclonic storms from microwave observations using nonlinear approach over Indian Ocean

In this study, an effort has been made to study heavy rainfall events during cyclonic storms over Indian Ocean. This estimate is based on microwave observations from tropical rainfall measuring mission (TRMM) Microwave Imager (TMI). Regional scattering index (SI) developed for Indian region based on measurements at 19-, 21- and 85-GHz brightness temperature and polarization corrected temperature (PCT) at 85 GHz have been utilized in this study. These PCT and SI are collocated against Precipitation Radar (PR) onboard TRMM to establish a relationship between rainfall rate, PCT and SI. The retrieval technique using both linear and nonlinear regressions has been developed utilizing SI, PCT and the combination of SI and PCT. The results have been compared with the observations from PR. It was found that a nonlinear algorithm using combination of SI and PCT is more accurate than linear algorithm or nonlinear algorithm using either SI or PCT. Statistical comparison with PR exhibits the correlation coefficients (CC) of 0.68, 0.66 and 0.70, and root mean square error (RMSE) of 1.78, 1.96 and 1.68 mm/h from the observations of SI, PCT and combination of SI and PCT respectively using linear regressions. When nonlinear regression is used, the CC of 0.73, 0.71, 0.79 and RMSE of 1.64, 1.95, 1.54 mm/h are observed from the observations of SI, PCT and combination of SI and PCT, respectively. The error statistics for high rain events (above 10 mm/h) shows the CC of 0.58, 0.59, 0.60 and RMSE of 5.07, 5.47, 5.03 mm/h from the observations of SI, PCT and combination of SI and PCT, respectively, using linear regression, and on the other hand, use of nonlinear regression yields the CC of 0.66, 0.64, 0.71 and RMSE of 4.68, 5.78 and 4.02 mm/h from the observations of SI, PCT and combined SI and PCT, respectively.