On Determinants of Laplacians on Compact Riemann Surfaces Equipped with Pullbacks of Conical Metrics by Meromorphic Functions

Let $\mathsf m$ be any conical (or smooth) metric of finite volume on the Riemann sphere $\Bbb CP^1$. On a compact Riemann surface $X$ of genus $g$ consider a meromorphic funciton $f: X\to {\Bbb C}P^1$ such that all poles and critical points of $f$ are simple and no critical value of $f$ coincides with a conical singularity of $\mathsf m$ or $\{\infty\}$. The pullback $f^*\mathsf m$ of $\mathsf m$ under $f$ has conical singularities of angles $4\pi$ at the critical points of $f$ and other conical singularities that are the preimages of those of $\mathsf m$. We study the $\zeta$-regularized determinant $\operatorname{Det}' \Delta_F$ of the (Friedrichs extension of) Laplace-Beltrami operator on $(X,f^*\mathsf m)$ as a functional on the moduli space of pairs $(X, f)$ and obtain an explicit formula for $\operatorname{Det}' \Delta_F$.Comment: typos. arXiv admin note: text overlap with arXiv:1612.0866

Gonad maturity in female Chinese mitten crab Eriocheir sinensis from the southern Baltic Sea – the first description of ovigerous females and the embryo developmental stage

AbstractThis paper describes for the first time the gonad maturity stage of Eriocheir sinensis females (carapace width 55.20–78.10mm) collected in the autumns and winters of 2005–2012 in the Gulf of Gdańsk and Vistula Lagoon (southern Baltic Sea). Seventeen females had gonads in the penultimate stage, which indicates that spawning would shortly take place. Four other females had gonads in the last stage, which means they were already carrying eggs. These accounted, on average, for 17.9 ± 2.9% of female weight and were in the 3rd and 4th embryo developmental stage. The results show that the low salinity of southern Baltic Sea (≤ 7 PSU) permits mating and fertilization as well as embryo development in E. sinensis. It is still not clear, whether such a salinity level will enable hatching and the complete larval cycle

Viry-Noureuil – Liaison RD 429E et RD 1032

Le diagnostic effectué sur la commune de Viry-Noureuil a été réalisé préalablement à l’aménagement d’une route de liaison, située au sud-est du bourg de Viry-Noureuil, en rive droite de l’Oise. L’emprise du projet total est de 58 885 m2. Dans les 30 tranchées réalisées, trois secteurs ont livré des indices d’occupation. La plus importante (secteur 1) a permis l’observation d’une forte densité de vestiges. Trois bâtiments sur poteaux ont pu être mis en évidence, ainsi que plusieurs fosses, un ..

Epibiotic mites associated with the invasive Chinese mitten crab Eriocheir sinensis – new records of Halacaridae from Poland **This research was supported by grant No. N304 082 31/3219 from the Polish Ministry of Education and Science.

AbstractSeven epibiotic halacarid mites (Caspihalacarus hyrcanus, two species of Copidognathus, Halacarellus petiti, Porohalacarus alpinus, Soldanellonyx monardi and S. chappuisi), two oribatid mites (Hydrozetes lacustris and Trhypochthoniellus longisetus) and one water mite (Piona pusilla) were found on the setae-covered claws of eighteen Chinese mitten crabs (Eriocheir sinensis) collected from fresh and brackish waters in Poland and Germany. The most abundant of the 111 mite individuals recorded was one of the Copidognathus species (N=52); this was followed by H. petiti (N=38) and C. hyrcanus (N=13). This is the first record of H. petiti and of the genus Copidognathus from Polish waters. The possibility of migrating over long distances assisted by catadromous mitten crabs enhances mite dispersal, as well as their introduction to new environments

How the process of doctrinal standardization during the later Roman Empire relates to Christian triumphalism

My thesis examines relations among practitioners of various religions, especially Christians and Jews, during the era when Jesus’ project went from being a Galilean sect, to a persecuted minority, to religio licita status, and eventually to imperial favor, all happening between the first century resurrection of Jesus and the fourth century rise of Constantine. There is an abiding image of the Church in wider public consciousness that it is unwittingly and in some cases antagonistically exclusionist. This is not a late-developing image. I trace it to the period that the church developed into a formal organization with the establishment of canons and creeds defined by Church councils. This notion is so pervasive that an historical retrospective of Christianity of any period, from the sect that became a movement, to the Reformation, to the present day’s multiple Christian iterations, is framed by the late Patristic era. The conflicts and solutions reached in that period provided enduring definition to the Church while silencing dissent. I refer here to such actions as the destruction of books and letters and the banishment of bishops. Before there emerged the urgent perceived need for doctrinal uniformity, the presence of Christianity provided a resilient non-militant opponent to and an increasing intellectual critique of all religious traditions, including that of the official gods that were seen to hold the empire together. When glaringly manifest cleavages in the empire persisted, the Emperor Constantine sought to use the church to help bring political unity. He called for church councils, starting with Nicaea in 325 CE that took no account for churches outside the Roman Empire, and many within, even though councils were called “Ecumenical.” The presumption that the church was fully representative without asking for permission from a broader field of constituents is just that: a presumption. This thesis studies the ancient world of Christianity’s growth to explore whether, in that age of new and untested toleration, there was a more advisable way of responding to the invitation to the political table. The answer to this can help us formulate, and perhaps revise, some of our conduct today, especially for Christians who obtain a voice in powerful places.Christian Spirituality, Church History and MissiologyD. Th. (Church History

Caractérisation des protéines Str3 et Tpx1 dans l’homéostasie de l’hème chez la levure Schizosaccharomyces pombe.

La molécule d’hème est un groupement prosthétique qui est requis par de nombreuses protéines impliquées dans des processus cellulaires vitaux. En excès, la molécule d’hème libre est toxique car elle peut facilement causer des dommages aux membranes ou participer à la formation d’espèces réactives à l’oxygène. Son homéostasie doit donc être rigoureusement régulée. Pour obtenir l’hème de façon exogène, les organismes ont développé une panoplie de stratégies afin de l’acquérir. De plus, pour plusieurs organismes incluant les levures pathogènes, il a été montré que leur capacité à acquérir l’hème est souvent en lien direct avec leur habilité à infecter l’hôte. Chez l’organisme modèle, Schizosaccharomyces pombe, il a été découvert que la protéine de surface Shu1 est impliquée dans l’acquisition d’hème. Une souche délétée pour le gène hem1+ n'est plus capable de synthétiser de l’hème. Elle doit donc recourir à l'acquisition d’hème exogène pour survivre. Une souche hem1Δ shu1Δ n'est pas capable de croître en présence d'une faible quantité d’hème (0,075μM) dans le milieu de culture. Nous avons montré dans cette thèse que si cette concentration excède 0,15μM, la souche est capable de croître, suggérant l'existence d'un deuxième transporteur d’hème. Cette croissance est dépendante de la protéine Str3 qui code pour un transporteur de type MFS (Major Facilitator Superfamily transporter). Ainsi, une souche hem1Δ shu1Δ str3Δ présente une incapacité de croître en présence de 0,15μM d’hème, montrant l'importance de str3+ à cette concentration d’hème. La protéine Str3 se localise à la surface cellulaire. Elle a la capacité de lier de l’hème via une boucle extracellulaire. Enfin, la présence de Str3 à la surface cellulaire permet l’entrée dans la cellule de Zinc-Mésoporphyrine (ZnMP), un analogue fluorescent de l’hème. Nous avons ensuite montré que Str3 interagit avec la peroxyrédoxine Tpx1 en présence d’hème. La protéine Tpx1, initialement caractérisée pour sa réponse au stress oxydatif, est capable de lier deux molécules d’hème au niveau de deux motifs CP. La mutation des deux motifs CP abolie la capacité de croissance en présence de 0.15μM d’hème d’une souche délétée pour les gènes hem1+ et shu1+ (hem1Δ shu1Δ). Ainsi, Tpx1 et Str3 participent à une voie commune d’assimilation de l’hème chez S. pombe. Enfin, nos résultats montrent que la présence de Str3 et Tpx1 est requise pour le fonctionnement de l’hémoprotéine Frp1, une ferriréductase de surface

Steric control of regiochemistry in the reactions of methyl substituted pentadienyl cations with isobutene

The dienylic chlorides 1–5 react with isobutene in the presence of zinc chloride/ether in dichloromethane to give the acyclic adducts 6–10 in 64–91% yield. The orientation effects are in contrast to the predictions of perturbational molecular orbital theory and can be explained on the basis of steric effects

Php4 Is a Key Player for Iron Economy in Meiotic and Sporulating Cells

Meiosis is essential for sexually reproducing organisms, including the fission yeast Schizosaccharomyces pombe. In meiosis, chromosomes replicate once in a diploid precursor cell (zygote), and then segregate twice to generate four haploid meiotic products, named spores in yeast. In S. pombe, Php4 is responsible for the transcriptional repression capability of the heteromeric CCAAT-binding factor to negatively regulate genes encoding iron-using proteins under low-iron conditions. Here, we show that the CCAAT-regulatory subunit Php4 is required for normal progression of meiosis under iron-limiting conditions. Cells lacking Php4 exhibit a meiotic arrest at metaphase I. Microscopic analyses of cells expressing functional GFP-Php4 show that it colocalizes with chromosomal material at every stage of meiosis under low concentrations of iron. In contrast, GFP-Php4 fluorescence signal is lost when cells undergo meiosis under iron-replete conditions. Global gene expression analysis of meiotic cells using DNA microarrays identified 137 genes that are regulated in an iron- and Php4-dependent manner. Among them, 18 genes are expressed exclusively during meiosis and constitute new putative Php4 target genes, which include hry1+ and mug14+. Further analysis validates that Php4 is required for maximal and timely repression of hry1+ and mug14+ genes. Using a chromatin immunoprecipitation approach, we show that Php4 specifically associates with hry1+ and mug14+ promoters in vivo. Taken together, the results reveal that in iron-starved meiotic cells, Php4 is essential for completion of the meiotic program since it participates in global gene expression reprogramming to optimize the use of limited available iron