Ornament of Reason : an annoted english translation of rMa bya Byang chub brtson 'grus's : commentary to the Mūlamadhyamakakārikā

The present work contains an English translation of the Ornament of Reason (Tib. dBu ma'i rtsa ba shes rab kyi 'grel ba thad pa'i rgyan), an influential 12th century Tibetan commentary to a classic of Indian Buddhism, Nàgàrjuna's Root of the Middle Way (Skt. Mûlamadhyamaka-kârikâ Tib. dBu ma'i rtsa ba shes rab ces bya ba). The author, rMa bya byang chub brtson 'grus's, was among the first Tibetans to explicitly align themselves with the philosophical project of the 7th century Indian Madhyamaka teacher, CandrakTrti. With his stern revision and transformative re-employment of the epistemological framework that CandrakTrti otherwise scorns, rMa bya was however to develop an original and highly influential Madhyamaka interpretation.¦rMa bya's "topical outline" (Tib. sa bead) of his commentary is contained in the first appendix to the translation. The second appendix contains a digitalized version of the Rumtek edition of rMa bya's commentary, cross-referenced to the page numbers of the translation. The annotations contain concise explanatory remarks and suggestions for further reading, as well as identifications of the passages that rMa bya cites.

Low incidence of severe respiratory syncytial virus infections in lung transplant recipients despite the absence of specific therapy.

BACKGROUND: Respiratory syncytial virus (RSV) infections in lung transplant recipients (LTRs) have been associated with significant morbidity and mortality. Immunoglobulins, ribavirin, and palivizumab are suggested treatments for both pre-emptive and therapeutic purposes. However, in the absence of randomized, placebo-controlled trials, efficacy is controversial and there is toxicity as well as cost concerns. METHODS: We retrospectively reviewed cases of lower respiratory tract RSV infections in adult LTRs. Diagnosis was based on clinical history, combined with a positive polymerase chain reaction (PCR) and/or viral cultures of bronchoalveolar lavage (BAL) specimens. RESULTS: Ten symptomatic patients were identified (7 men and 3 women, age range 28 to 64 years). All were hospitalized for community-acquired respiratory tract infections. Two patients had a concomitant acute Grade A3 graft rejection, and 1 patient had a concomitant bacterial pneumonia. Eight patients did not receive a specific anti-RSV treatment because of clinical stability and/or improvement at the time of RSV diagnosis. Only 2 patients (1 with Grade A3 allograft rejection and 1 requiring mechanical ventilation) received ribavirin and palivizumab. All patients recovered without complications and with no persistent RSV infection. However, bronchiolitis obliterans (BOS) staging worsened in 6 patients during the mean follow-up of 45 months. CONCLUSIONS: Our data suggest that mild RSV infections in LTRs might evolve favorably in the absence of specific anti-viral therapy. However, this observation needs confirmation in a large clinical trial specifically investigating the development of BOS in untreated vs treated patients.

O uso de FDG-PET/TC scan no planejamento da radioterapia em câncer do pulmão não de pequenas células

Radioterapia é uma importante alternativa de tratamento curativo em pacientes com câncer do pulmão não de pequenas células. Entretanto, pulmões são muito sensíveis à radiação e isto aumenta a importância em se delimitar o volume a ser irradiado com precisão. Ultimamente, a tomografia por emissão de pósitron (PET) e a tomografia computadorizada (TC) são feitas de forma combinada, e a literatura sugere que seu impacto no planejamento da radioterapia é significativo. Ao se utilizar exames de PET/TC no planejamento da radioterapia é importante reconhecer e adaptar-se às diferenças entre os equipamentos de diagnóstico e de tratamento. Este texto discute alguns dos problemas técnicos que devem ser resolvidos quando se incorpora PET no planejamento radioterápico.

Determinação da constante de velocidade absoluta para a reação de abstração de hidrogênio fenólico pelo estado excitado triplete de xantona em acetonitrila e no líquido iônico hexafluorfosfato de 1-butil-3-metil-imidazólio [bmim.PF6]

The triplet excited state of xanthone was generated and characterized by laser flash photolysis in acetonitrile (λmax=620 nm; t=1.8 ms) and in ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate [bmim.PF6] (λmax=620 nm; t=3.0 ms). It reacts with phenols yielding the corresponding xanthone ketyl radical. Stern-Volmer plots for the reaction of triplet xanthone with phenols led to the determination of absolute rate constants for phenolic hydrogen abstraction in the order of ~10(9) Lmol-1s-1 in acetonitrile and ~10(8) Lmol-1s-1 in [bmim.PF6]. The lower diffusioncontrolled rate constant for [bmim.PF6] is responsible for the difference in the phenolic hydrogen abstraction rate constants in this solvent.

Interação de complexo de rutênio com albumina de soro bovino para detecção amperométrica de ácido ascórbico

The binding of [Ru(PAN)(PPh3)2(ISN)]Cl (PAN = 1-(2'-Pyridylazo)-2-naphtholate) to bovine serum albumin (BSA) was investigated by spectroscopic techniques. According to analysis of the results from the Stern-Volmer equation, the ruthenium complex is able to quench the fluorescence intensity of BSA via a dynamic mechanism. The thermodynamic parameters were calculated (ΔH = 30.3 kJ mol-1; ΔS = 195.4 J mol-1 K-1), indicating that hydrophobic force is the main interaction driving force. The site marker competitive experiments revealed that the binding site of ruthenium complex was in the sub-domain IIA of BSA. FTO glass with a film of BSA-[Ru(PAN)(PPh3)2(ISN)]Cl was used as an ascorbic acid sensor. The linear range of the modified electrode was between 1 and 8 × 10-6 mol L-1.

Tunnuslukujen monimuotoisuus: ROI, RI ja EVA

Tässä työssä käsitellään sijoitetun pääoman tuottoprosentin, jäännöskatteen ja taloudellisen lisäarvon historiaa, käsitteitä ja käyttöä. Erityisesti keskitytään näistä tunnusluvuista käytettyjen määritelmien moninaisuuteen. Aluksi tutustutaan tunnuslukujen historiaan ja määritelmiin. Tämän jälkeen tutkitaan niiden käyttömahdollisuuksia johdon ja rahoituksen laskentatoimessa. Lopuksi tutkitaan empiirisen aineiston avulla näiden tunnuslukujen käyttöä yrityksissä. Sijoitetun pääoman tuottoprosentti syntyi 1900-luvun alussa Yhdysvalloissa, josta se levisi maailmanlaajuiseksi. Sijoitetun pääoman tuottoprosentti on suosittu tunnusluku sen helppokäyttöisyyden ansiosta. Rahoituksen laskentatoimen puolella on annettu tarkat ohjeet sijoitetun pääoman tuottoprosentin laskemiseksi, koska sen esittäminen ulkoisessa tiedottamisessa on joillekin yrityksille lakisääteistä. Johdon laskentatoimessa ei ole olemassa sääntöjä tämän tunnusluvun laskemiseksi, ja se voidaan laskea yrityksen haluamalla tavalla. Jäännöskate on ensimmäisen kerran mainittu kirjallisuudessa jo 1700-luvun loppupuolella, mutta sen käytöstä tuli yleisempää vasta 1900-luvulla. Jäännöskate ei kuitenkaan koskaan saavuttanut suurta suosiota, eikä sitä nykyään juuri käytetä. Jäännöskatteeseen pohjautuva taloudellinen lisäarvo nousi julkisuuteen, kun Stern Stewart & Co. rekisteröi sen tuotemerkikseen 1980-luvun lopussa. Verrattuna jäännöskatteeseen taloudellinen lisäarvo vastaa paremmin yrityksen todellista arvonmuodostusta. Näiden tunnuslukujen laskenta ei ole lakisääteisiä, joten kaikki yritykset voivat laskea ne omalla tavallaan. Jäännöskatetta ja taloudellista lisäarvoa käytetään lähinnä johdon laskentatoimessa, mutta vähitellen ne ovat siirtymässä myös rahoituksen laskentatoimeen.

Open Access at the Nordic Council of Ministers

Presentation at the Nordic Perspectives on Open Access and Open Science seminar, Helsinki, October 15, 2013

Effects of lipopolysaccharide on low- and high-density cultured rabbit vascular smooth muscle cells: differential modulation of nitric oxide release, ERK1/ERK2 MAP kinase activity, protein tyrosine phosphatase activity, and DNA synthesis

Previous studies have shown that exogenously generated nitric oxide (NO) inhibits smooth muscle cell proliferation. In the present study, we stimulated rabbit vascular smooth muscle cells (RVSMC) with E. coli lipopolysaccharide (LPS), a known inducer of NO synthase transcription, and established a connection between endogenous NO, phosphorylation/dephosphorylation-mediated signaling pathways, and DNA synthesis. Non-confluent RVSMC were cultured with 0, 5, 10, or 100 ng/ml of the endotoxin. NO release was increased by 86.6% (maximum effect) in low-density cell cultures stimulated with 10 ng/ml LPS as compared to non-stimulated controls. Conversely, LPS (5 to 100 ng/ml) did not lead to enhanced NO production in multilayered (high density) RVSMC. DNA synthesis measured by thymidine incorporation showed that LPS was mitogenic only to non-confluent RVSMC; furthermore, the effect was prevented statistically by aminoguanidine (AG), a potent inhibitor of the inducible NO synthase, and oxyhemoglobin, an NO scavenger. Finally, there was a cell density-dependent LPS effect on protein tyrosine phosphatase (PTP) and ERK1/ERK2 mitogen-activated protein (MAP) kinase activities. Short-term transient stimulation of ERK1/ERK2 MAP kinases was maximal at 12 min in non-confluent RVSMC and was prevented by preincubation with AG, whereas PTP activities were inhibited in these cells after 24-h LPS stimulation. Conversely, no significant LPS-mediated changes in kinase or phosphatase activities were observed in high-density cells. LPS-induced NO generation by RVSMC may switch on a cell density-dependent proliferative signaling cascade, which involves the participation of PTP and the ERK1/ERK2 MAP kinases.

Quenching of the intrinsic fluorescence of bovine serum albumin by chlorpromazine and hemin

The binding of chlorpromazine (CPZ) and hemin to bovine serum albumin was studied by the fluorescence quenching technique. CPZ is a widely used anti-psychotic drug that interacts with blood components, influences bioavailability, and affects function of several biomolecules. Hemin is an important ferric residue of hemoglobin that binds within the hydrophobic region of albumin with high specificity. Quenching of the intrinsic fluorescence of bovine serum albumin (BSA) was observed by selectively exciting tryptophan residues at 290 nm. Emission spectra were recorded in the range from 300 to 450 nm for each quencher addition. Stern-Volmer graphs were plotted, and the quenching constant estimated for BSA solution titrated with hemin at 25ºC was 1.44 (± 0.05) x 10(5) M-1. Results showed that bovine albumin tryptophans are not equally accessible to CPZ, in agreement with the idea that polar or charged quenchers have more affinity for amino acid residues on the outer wall of the protein. Hemin added to albumin solution at a molar ratio of 1:1 quenched about 25% of their fluorescence. The quenching effect of CPZ on albumin-hemin solution was stronger than on pure BSA. This increase can be the result of combined conformational changes in the structure of albumin caused firstly by hemin and then by CPZ. Our results suggest that the primary binding site for hemin on bovine albumin may be located asymmetrically between the two tryptophans along the sequence formed by subdomains IB and IIA, closer to tryptophan residue 212.

Hysteresis Losses in Sintered NdFeB Permanent Magnets in Rotating Electrical Machines

Permanent magnet materials are nowadays widely used in the electrical machine manufacturing industry. Eddy current loss models of permanent magnets used in electrical machines are frequently discussed in research papers. In magnetic steel materials we have, in addition to eddy current losses, hysteresis losses when AC or a rotating flux travels through the material. Should a similar phenomenon also be taken into account in calculating the losses of permanent magnets? Actually, every now and then authors seem to assume that some significant hysteresis losses are present in rotating machine PMs. This paper studies the mechanisms of possible hysteresis losses in PMs and their role in PMs when used in rotating electrical machines.

Le discours de crise: La représentation des réfugiés dans le Figaro et Libération

Under september månad 2015 gav sökordet ”kris” dagligen upphov till ett trettiotal träffar i sökmotorn till Frankrikes största dagstidningar. Dagspressen överflödas av kriser och i skrivande stund är den mest omtalade krisen de flyktingströmmar som når Europa som resultat efter flera års krig i Mellanöstern. Pro gradu-avhandlingen studerar flyktingkrisen som en diskursiv händelse, en social konstruktion av en företeelse som tar de aktuella personerna och deras åsikter i beaktande. Avhandlingen är uppbyggd som en linje som inleds med mediestrategier och går till iscensättandet av nyheten, för att sedan analysera de olika åsikterna och personerna som ger upphov till lingvistisk polyfoni och mångtydighet. Syftet med avhandlingen är att studera hur medierna påverkar vår förståelse av en kris. För att få en dynamisk bild av bevakningen av flyktingkrisen studeras rubriker till ett hundratal titlar som publicerats i september 2015 av två stora franska dagstidningar: Le Figaro och Libération. Tidningarnas motsatta politiska orientering står som grund för en heltäckande och varierande genomläsning av medieuppmärksamheten kring flyktingkrisen. Som metod utförs en diskursanalys på materialet för att få reda på hur de båda tidningarna framställer krisen. Skillnader och likheter studeras, såväl som förekommande teman och en karakteristisk vokabulär i anknytning till krisen. Hypotesen är att flyktingarnas egna åsikter kommer i skymundan i medierna. Som resultat har jag noterat element i krisen som tidigare framställts som viktiga ur lingvistisk synvinkel på krisdiskurs av lingvisten Marie Veniard. Utöver det observeras några kompletterande betydelsekomponenter som står i förbindelse med flyktingkrisens komplexa natur. Ett speciellt mönster för att framställa flyktingarna har visat sig vara ofta förekommande i de båda tidningarna. Flyktingarna nämns för att ge rubrikerna ett autentiskt värde men paradoxalt nog möjliggör de även otydlighet i fråga om vem som faktiskt yttrar sig, flyktingarna eller journalisterna?