oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

4 ( 1 )

3 ( 1 )

2019 ( 103 )

2018 ( 140 )

Custom range...

Search Results: 1 - 10 of 71056 matches for " Maria;Rehn "
All listed articles are free for downloading (OA Articles)
Page 1 /71056
Display every page Item
Isolation, morphological identification and pathogenicity of Cylindrocladium scoparium and C. clavatum isolates obtained from plants rhizosphere cultivated in Pernambuco State
Rehn, Vitorina Nerivania Covello;Menezes, Maria;Rehn, Kurt Georg;Coêlho, Rildo Sartori Barbosa;
Brazilian Journal of Microbiology , 2004, DOI: 10.1590/S1517-83822004000300004
Abstract: twelve isolates of cylindrocladium scoparium and 4 isolates of c. clavatum were obtained from the rhizosphere of various species of plants by baiting with ricinus communis leaves. the isolates of c. scoparium developed conidia of 32-(45)-60 x 3 -(4)-5 μm, and pyriform to ellipsoidal vesicles. c. clavatum showed conidia of 36-(44)-49 x 2-(4)-6 μm and clavate vesicles. all isolates induced necrosis on leaves and hypocotyls of eucalypt seedlings, with varying expression of symptoms.
Improving adjustments for older age in pre-hospital assessment and care
Rehn Marius
Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine , 2013, DOI: 10.1186/1757-7241-21-4
Abstract: Population estimates projects a significant increase in the geriatric population making elderly trauma patients more common. The geriatric trauma patients experience higher incidence of pre-existing medical conditions, impaired age-dependent physiologic reserve, use potent drugs and suffer from trauma system related shortcomings that influence outcomes. To improve adjustments for older age in pre-hospital assessment and care, several initiatives should be implemented. Decision-makers should make system revisions and introduce advanced point-of-care initiatives to improve outcome after trauma for the elderly.
Antagonism of Trichoderma species on Cladosporium herbarum and their enzimatic characterization
Barbosa, Maria Angélica G.;Rehn, Kurt Georg;Menezes, Maria;Mariano, Rosa de Lima R.;
Brazilian Journal of Microbiology , 2001, DOI: 10.1590/S1517-83822001000200005
Abstract: the verrucose caused by cladosporium herbarum reduces production and quality of passion fruit (passiflora edulis sims.), a largely consumed tropical fruit. this work aimed to investigate the antagonism of trichoderma species (t. polysporum, t. koningii, t. viride and t. harzianum) against cladosporium herbarum, and to study the production of extracellular hydrolytic enzymes by the pathogen and the antagonists. the results showed considerable antagonistic potential for the biocontrol of c. herbarum isolates by all trichoderma species, except t. koningii. the most distinguished effect was observed for t. polysporum. in relation to the pattern of esterase obtained by electrophoresis in poliacrylamyde gel, the major activity presented by the isolates was observed after five days of incubation. the c. herbarum isolates produced extracellular enzymes, lipase, pectinase, cellulase, and protease, all possibly related to the infection process. amylase excretion, not known to be associated with phytopathogens, was detected in trichoderma species, but not in c. herbarum. in addition to amylase, all trichoderma species tested produced also extracellular cellulase and pectinase, except t. koningii in relation to the latter enzyme. the demonstration of various esterase isoenzymes in zymograms of the trichoderma species and c. herbarum isolates was markedly improved by washing the mycelia with detergents or edta. this fact suggested that a major fraction of extracelular enzymes may remain attached to outside fungal cell wall after being excreted.
Antagonism of Trichoderma species on Cladosporium herbarum and their enzimatic characterization
Barbosa Maria Angélica G.,Rehn Kurt Georg,Menezes Maria,Mariano Rosa de Lima R.
Brazilian Journal of Microbiology , 2001,
Abstract: The verrucose caused by Cladosporium herbarum reduces production and quality of Passion fruit (Passiflora edulis Sims.), a largely consumed tropical fruit. This work aimed to investigate the antagonism of Trichoderma species (T. polysporum, T. koningii, T. viride and T. harzianum) against Cladosporium herbarum, and to study the production of extracellular hydrolytic enzymes by the pathogen and the antagonists. The results showed considerable antagonistic potential for the biocontrol of C. herbarum isolates by all Trichoderma species, except T. koningii. The most distinguished effect was observed for T. polysporum. In relation to the pattern of esterase obtained by electrophoresis in poliacrylamyde gel, the major activity presented by the isolates was observed after five days of incubation. The C. herbarum isolates produced extracellular enzymes, lipase, pectinase, cellulase, and protease, all possibly related to the infection process. Amylase excretion, not known to be associated with phytopathogens, was detected in Trichoderma species, but not in C. herbarum. In addition to amylase, all Trichoderma species tested produced also extracellular cellulase and pectinase, except T. koningii in relation to the latter enzyme. The demonstration of various esterase isoenzymes in zymograms of the Trichoderma species and C. herbarum isolates was markedly improved by washing the mycelia with detergents or EDTA. This fact suggested that a major fraction of extracelular enzymes may remain attached to outside fungal cell wall after being excreted.
Feo-hifomicose causada por Veronaea bothryosa: relato de dois casos
Cunha Filho, Roberto Rheingantz da;Schwartz, Joel;Rehn, Mariane;Vettorato, Gerson;Resende, Maria Aparecida de;
Anais Brasileiros de Dermatologia , 2005, DOI: 10.1590/S0365-05962005000100008
Abstract: phaeohyphomycosis caused by veronaea bothryosa is very rare. we report two cases. to our knowledge, these are the first and second cases to be reported on the american continent, and fourth and fifth cases in the world literature. we report one case in a kidney transplant recipient, and another case in an immunosuppressed non-transplant patient. both patients presented with a lesion on the dorsal aspect of the foot, following trauma. one patient responded moderately well to treatment with itraconazole. the other responded well to a surgical excision.
A New Species of Roach of the Genus Kakerlac (Loboptera Auct.)From Southern Texas
James A. G. Rehn
Psyche , 1904, DOI: 10.1155/1904/75607
Abstract:
Das gestielte Myom - Zwei besondere Differentialdiagnosen
Rehn A,Hess T
Journal für Fertilit?t und Reproduktion , 2004,
Abstract: Zur pr operativen Abkl rung eines unklaren Unterbauchtumors stehen uns diverse Abkl rungsmethoden zur Verfügung. Trotzdem werden wir intraoperativ immer wieder überrascht. – Fall Nummer 1: 32j hrige Patientin, welche schon seit Jahren wegen bekannter Spondylolisthesis konservativ behandelt wurde. Ein Zufallsbefund im Rahmen der gyn kologischen Jahreskontrolle zeigte eine unklare Raumforderung im Bereich der rechten Adnexe. Sonographisch und in der MRT-Untersuchung wurde der Verdacht auf ein gestieltes Myom ge u ert, intraoperativ fand sich aber ein gro er retroperitonealer Tumor, welcher retrospektiv bereits auf lteren R ntgenbildern zu sehen war. Histologisch handelte es sich um ein Schwannom. – Fall Nummer 2: 46j hrige Patientin mit im Rahmen der gyn kologischen Jahreskontrolle festgestellter Raumforderung parauterin rechts. Pr operativ wurde mittels Ultraschall und Computertomographie die Diagnose eines gestielten Myoms gestellt. Intraoperativ fand sich ein kugeliger Tumor im Omentum majus, welcher histologisch die Diagnose einer leiomyomat sen Neoplasie des Omentum majus ergab. In beiden F llen wurde pr operativ die Diagnose eines gestielten Myoms gestellt, intraoperativ jedoch nicht best tigt. Die Differentialdiagnose des gestielten Myoms ist sehr breit und verlangt unbedingt den Nachweis eines Stiels durch bildgebende Verfahren. Au erdem l t sich anhand der beiden Fallbeispiele zeigen, da wir trotz vieler pr operativer Abkl rungsm glichkeiten nicht vor intraoperativen überraschungen gefeit sind.
Optimal Replica Placement in Tree Networks with QoS and Bandwidth Constraints and the Closest Allocation Policy
Veronika Rehn-Sonigo
Computer Science , 2007,
Abstract: This paper deals with the replica placement problem on fully homogeneous tree networks known as the Replica Placement optimization problem. The client requests are known beforehand, while the number and location of the servers are to be determined. We investigate the latter problem using the Closest access policy when adding QoS and bandwidth constraints. We propose an optimal algorithm in two passes using dynamic programming.
Exploiting Symmetry in Integer Convex Optimization using Core Points
Katrin Herr,Thomas Rehn,Achill Schürmann
Mathematics , 2012, DOI: 10.1016/j.orl.2013.02.007
Abstract: We consider convex programming problems with integrality constraints that are invariant under a linear symmetry group. To decompose such problems we introduce the new concept of core points, i.e., integral points whose orbit polytopes are lattice-free. For symmetric integer linear programs we describe two algorithms based on this decomposition. Using a characterization of core points for direct products of symmetric groups, we show that prototype implementations can compete with state-of-the-art commercial solvers, and solve an open MIPLIB problem.
On Lattice-Free Orbit Polytopes
Katrin Herr,Thomas Rehn,Achill Schürmann
Mathematics , 2014, DOI: 10.1007/s00454-014-9638-x
Abstract: Given a permutation group acting on coordinates of $\mathbb{R}^n$, we consider lattice-free polytopes that are the convex hull of an orbit of one integral vector. The vertices of such polytopes are called \emph{core points} and they play a key role in a recent approach to exploit symmetry in integer convex optimization problems. Here, naturally the question arises, for which groups the number of core points is finite up to translations by vectors fixed by the group. In this paper we consider transitive permutation groups and prove this type of finiteness for the $2$-homogeneous ones. We provide tools for practical computations of core points and obtain a complete list of representatives for all $2$-homogeneous groups up to degree twelve. For transitive groups that are not $2$-homogeneous we conjecture that there exist infinitely many core points up to translations by the all-ones-vector. We prove our conjecture for two large classes of groups: For imprimitive groups and groups that have an irrational invariant subspace.
Page 1 /71056
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.