Search results for "39"

showing 10 items of 1787 documents

Two master switch regulators trigger A40926 biosynthesis in Nonomuraea sp. strain ATCC 39727

2015

ABSTRACT The actinomycete Nonomuraea sp. strain ATCC 39727 produces the glycopeptide A40926, the precursor of dalbavancin. Biosynthesis of A40926 is encoded by the dbv gene cluster, which contains 37 protein-coding sequences that participate in antibiotic biosynthesis, regulation, immunity, and export. In addition to the positive regulatory protein Dbv4, the A40926-biosynthetic gene cluster encodes two additional putative regulators, Dbv3 and Dbv6. Independent mutations in these genes, combined with bioassays and liquid chromatography-mass spectrometry (LC-MS) analyses, demonstrated that Dbv3 and Dbv4 are both required for antibiotic production, while inactivation of dbv6 had no effect. In …

Transcription GeneticOperonmedicine.drug_classBiologyGlycopeptide antibioticSettore BIO/19 - Microbiologia GeneraleMicrobiologychemistry.chemical_compoundBacterial ProteinsBiosynthesisTranscription (biology)ActinomycetalesGene clustermedicineA40926 BiosynthesiMolecular BiologyGeneRegulation of gene expressionMolecular StructureReverse Transcriptase Polymerase Chain ReactionGene Expression Regulation BacterialArticlesAnti-Bacterial AgentsBiochemistrychemistryMannosylationMutationNonomuraea sp. Strain ATCC 39727gene expressionTeicoplanin
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Ayuda al niño Colonias infantiles de verano en playa ¡Aire puro, sol, alegría para los hombres de mañana! ...

Dibuix d'una barca amb vela llatina sobre les ones del mar, i assegut en el pot fotografia d'un xiquet en vestit de bany

Treball social amb els infants Espanya 1936-1939 CartellsColònies escolars Espanya 1936-1939 Cartells
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Obrers: organitzeu els campionats de treball de cara a la guerra

En la composició apareix el motor d'un avió, dues bombes, esbós d'una fàbrica, petit camp amb bous llaurant la terra, i sobretot això s'alcen dues mans, una amb un martell i l'altra amb una corona de llorer

Treballadors Catalunya Activitat política 1936-1939 Cartells
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Obrers: organitzeu els campionats de treball de cara a la guerra produïu més i millor aprofiteu els materials.

Treballador empunyant un martell i obrera amb una clau anglesa, sobre ells l'ombra dibuixada d'un combatent amb fusell. En l'angle inferior esquerre xemeneies de fàbriques

Treballadors Catalunya Activitat política 1936-1939 Cartells
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El Trabajo diario deforma al individuo pero esto se corrige ... El ideal sería que todo obrero practicase cada día una sesión completa de cultura fís…

En l'angle superior de l'esquerra tres escenes del treball en la fàbrica. Baix vuit exercicis de gimnàstica que es complementen amb unes instruccions addicionals

Treballadors Espanya 1936-1939 Condició física Cartells
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Camperol la Unió de Rabassaires de Catalunya és la teua organització sindical Com a tal ha vetllat i vetllarà sempre pels teus interessos de classe

Figura d'un camperol entre banderes i amb el braç dret estès

Treballadors agrícoles Sindicats Catalunya 1936-1939 CartellsPagesos Catalunya 1936-1939 Cartells
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Compressibility and phase stability of iron-rich ankerite

2021

ABSTRACT: The structure of the naturally occurring, iron-rich mineral Ca₁․₀₈(₆)Mg₀.₂₄(₂)Fe₀.₆₄(₄)Mn₀.₆₄(₄)(CO₃)₂ ankerite was studied in a joint experimental and computational study. Synchrotron X-ray powder diffraction measurements up to 20 GPa were complemented by density functional theory calculations. The rhombohedral ankerite structure is stable under compression up to 12 GPa. A third-order Birch-Murnaghan equation of state yields V₀ = 328.2(3) ų, bulk modulus B₀ = 89(4) GPa, and its first-pressure derivative B'₀ = 5.3(8)-values which are in good agreement with those obtained in our calculations for an ideal CaFe(CO₃)₂ ankerite composition. At 12 GPa, the iron-rich ankerite structure …

Trigonal planar molecular geometryBulk modulusEquation of statePhase transitionMaterials science010504 meteorology & atmospheric sciencesCompressibilityThermodynamicsGeology010502 geochemistry & geophysicsGeotechnical Engineering and Engineering GeologyMineralogy01 natural sciencesHigh pressurePhase (matter)Iron-rich ankeriteCarbonate mineralDensity functional theoryAnkeritePowder diffraction0105 earth and related environmental sciencesQE351-399.2Phase transition
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Des soldats noirs face au Reich: les massacres racistes de 1940

2015

International audience; Une « guerre pour la civilisation » germanique et pour l’Europe blanche : c’est ainsi que les nazis présentaient leur entreprise, qui avait également une dimension de revanche sur la Première Guerre mondiale et sur la « honte noire » infligée par les Français. En effet, depuis les années 1920, racistes et xénophobes allemands ne décoléraient pas : la France avait osé faire occuper le territoire de l’Allemagne par des soldats noirs, issus des troupes coloniales, et les nazis furent les plus virulents à le dénoncer. Lors de la campagne de France, en mai-juin 1940, environ trois mille de ces soldats coloniaux furent en conséquence assassinés, en dehors de toute action d…

Troupes coloniales[ SHS.HIST ] Humanities and Social Sciences/History[SHS.HIST] Humanities and Social Sciences/HistoryTirailleurs sénégalaisArméeFrance[SHS.HIST]Humanities and Social Sciences/HistoryMilitaires noirsGuerre mondiale (1939-1945)Colonies
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Algorithms for Pallet Building and Truck Loading in an Interdepot Transportation Problem

2016

This paper deals with the problem of a logistics company that has to serve its customers by first putting the products on pallets and then loading the pallets into trucks. Besides the standard geometric constraints of products not overlapping each other and not exceeding the dimensions of pallets and trucks, in this real problem, there are many other constraints, related to the total weight of the load, the maximum weight supported by each axle, and the distribution of the load inside the truck. Although the problem can be decomposed into two phases, pallet loading and truck loading, we have taken a combined approach, building and placing pallets at the same time. For each position in the t…

Truck050210 logistics & transportationEngineering021103 operations researchArticle Subjectbusiness.industryGeneral Mathematicslcsh:Mathematics05 social sciencesGRASP0211 other engineering and technologiesGeneral Engineering02 engineering and technologyTransportation theorylcsh:QA1-939Combined approachAxlePosition (vector)lcsh:TA1-2040Constructive algorithms0502 economics and businessPalletbusinesslcsh:Engineering (General). Civil engineering (General)AlgorithmMathematical Problems in Engineering
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Latvija un Turcija: aizmirstās attiecības 1918–1940 = Letonya ve Türkiye: unutulmuş ilişkiler 1918–1940 = Latvia and Turkey: Forgotten Relations 1918…

2018

Grāmatas izdošanu finansēja Latvijas Republikas Ārlietu ministrija no Latvijas valsts simtgades publiskās diplomātijas programmas līdzekļiem

Turki Latvijā - Pirmais pasaules karšEkonomik İlişkiler (Letonya ve Türkiye)Political and diplomatic relations (Latvia and Turkey)Cumhuriyetin İlk Yıllarında Türkiye-Letonya İlişkileriTürk Kaynaklarına Göre Letonya ve Türk-Leton İlişkileri (1939–1940)Latvia and Turkish-Latvian Relations (1939–1940 according to Turkish Sources)Economic relations (Latvia and Turkey)Saimnieciskie sakari (Latvija -Turcija)Diplomātiskie un konsulārie sakari (Latvija -Turcija)Turco-Latvian Diplomatic Relations (1918–1939)Relations Between Turkey and Latvia in Early Years of the Republic of Turkey:HUMANITIES and RELIGION::History and philosophy subjects::History subjects::History [Research Subject Categories]Diplomatik ve Konsolosluk İlişkileri (Letonya ve Türkiye)Letonya’daki TürklerPubliskā diplomātijaTürk-Leton Diplomatik İlişkileri (1918–1939)
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