showing 36 of ~574560 from 574555 documents

Duplication cycle in nuclei of germinating zoospores of Phytophthora drechsleri as revealed by DAPI staining

1982

biologyZoosporebiology.organism_classificationMolecular biologyStainingchemistry.chemical_compoundchemistryGerminationGene duplicationPhytophthora drechsleriBotanyGeneral Earth and Planetary SciencesDAPIGeneral Environmental ScienceTransactions of the British Mycological Society

The Receptor Functions of Endogenous C1q, a Subcomponent of the First Component of Complement, on Peritoneal Macrophages

1982

Abstract C1q, the Fc recognizing subcomponent of the first complement component was shown to be synthesized by peritoneal macrophages. Evidence is presented that C1q serves during the secretion phase as Fc binding protein on the membrane of these macrophages. A dose-dependent inhibition of Fc rosette formation occured when the macrophages were pretreated with anti-C1q -F(ab') 2 . The C3b rosette formation was not affected. In addition, preincubation of peritoneal macrophages with anti-C1q -F(ab') 2 abolished specifically the polyanion mediated stimulation to secrete dose and time dependently lysosomal enzymes. There was no polyanion-induced enzyme release after incubation of polyanions with…

chemistry.chemical_classificationbiologytechnology industry and agricultureFc receptorchemical and pharmacologic phenomenaStimulationEndogenyCell biologyEnzymechemistryBiochemistryimmune system diseasesbiology.proteinMacrophageSecretionReceptorIncubation

Extensional flow of HDPE/LDPE blends

1982

Elongational viscosity data, obtained through the converging flow analysis by Cogswell, are presented for two types of HDPE/LDPE blends at various compositions and different temperatures. The results relative to the homopolymer parents compare favourably with literature data obtained also with different and more sophisticated techniques. Those relative to blends show peculiar features for the two cases: when the newtonian viscosity of the LDPE is higher all the blends show a behaviour typical of the LDPE with a maximum in η el /η0 enhanced at small percentage of HDPE; when the newtonian viscosity of the LDPE is similar to that of the HDPE there is only a gradual change in the properties.

ViscosityLow-density polyethyleneMaterials sciencePolymer scienceFlow (psychology)Polymer blendNewtonian viscosityHigh-density polyethyleneComposite materialExtensional definition

Juridisko zinātņu doktore Marija Jemeļjanova: personālais literatūras rādītājs

1982

Juridisko zinātņu doktores M.Jemeļjanovas personālais bibliogrāfiskais rādītājs ietver viņas publicēto darbu bibliogräfiskos aprakstus no 1956.g. līdz 1982.g. Atsevišķās nodaļās apkopotas E.Jemeļjanovas runas, ierosinājumi un rediģētie darbi, kā arī raksti par viņu.

Tiesību zinātnes - bibliogrāfiskais rādītājsProfessors of the Latvian UniversityEkonomikas tiesības - bibliogrāfiskais rādītājs:LAW/JURISPRUDENCE::Procedural law::Civil procedure [Research Subject Categories]Bibliogrāfiskie rādītājiCiviltiesības - bibliogrāfiskais rādītājsЮридические науки - библиографический указательГражданское право - библиографический указательAdministratīvās tiesības - bibliogrāfiskais rādītājsTiesību zinātņu profesori Latvijas UnivesitātēHistory of the University of LatviaCivilprocesuālās tiesības - bibliogrāfiskais rādītājsLatvijas Universitātes vēsture:LAW/JURISPRUDENCE::Private law [Research Subject Categories]Latvijas Universitātes profesoriP. Stučkas Latvijas Valsts universitātes profesori

Rapport de l'Équipe Espagnole

1982

Texto incluido en el documento interno del Commitee on Communication, Knowledge and Culture: "CKC. Documentos de Trabajo sobre Telediarios y Producción de la Realidad", sobre la parte de esa misma investigación que llevó a cabo el equipo español, dirigido por Vidal-Beneyto.

MediaAcciones: Fases-Acciones de una vida: Acciones de la Comunicación: CKCVidal-Beneyto JoséInvestigacionesCOMUNICACIÓNMedios de ComunicaciónObjetividadAnálisis de contenidoProducciónEspacio púbilcoDocumentos de trabajoHabermasCULTURARealidadDiarios de referenciaIdeologíaAnálisis textualInformaciónAcciones: Acciones de una vida: Comunicación

H2-Antihistaminika, 8. Mitt. Synthese potentieller H2-Antihistaminika der Ethylendiamin-Reihe

1982

Als potentielle H2-Antihistaminika wurden die Ethylendiaminderivate 8,9 und 13 dargestellt und auf ihre H2-antihistaminische Wirksamkeit untersucht. H2-Antihistaminics, VIII: Synthesis of Potential H2-Antihistaminics with Ethylenediamine Structure As potential H2-antihistaminics, the ethylenediamine derivatives 8,9 and 13 were prepared and tested for their H2-antihistaminic activity.

chemistry.chemical_compoundChemistryDrug DiscoveryPharmaceutical ScienceETHYLENEDIAMINE DERIVATIVESEthylenediamineMedicinal chemistryArchiv der Pharmazie

Die Symmetrien Von Kristallen

1982

Die in der Natur vorkommenden oder vom Menschen hergestellten anorganischen und organischen Festkorper sind im Normalfall kristallin, bestehen also aus mehr oder weniger grosen Systemen, innerhalb derer die atomaren Bausteine regelmasig zusammengesetzt sind. Daneben gibt es auch amorphe Korper, deren Atomverteilung wie die der Flussigkeiten und Gase keine Fernordnung aufweist. Fur ideale Einkristalle jedoch herrscht vollkommene Ordnung, die durch keinerlei Storfaktoren unterbrochen ist und sich in Gedanken nach allen Richtungen hin ins Unendliche fortsetzen last.

Zusammenfassung der Diskussion zum Thema: „Organisation, personelle und apparative Ausstattung“

1982

Die Notwendigkeit einer Aufwacheinheit ist unbestritten. Sie ist die einzig logische Losung fur die Verhutung und Bekampfung postoperativer und postnarkotischer Probleme. Sie belast den Patienten als eine Einheit, d. h. sie teilt ihn nicht in eine an-asthesiologische und chirurgische Halfte. Weiterhin vermeidet sie eine nicht immer einfache Trennung in Fruh- und Spatphase nach der Narkose. Sie umgeht die Minderversorgung und -Uberwachung wahrend der Nacht und erleichtert im Einzelfall die Entscheidung, ob ein Patient auf die Normal-, Wach- oder Intensivstation verlegt werden kann bzw. mus.

La Facultad de Artes entre 1600-1611: provisión de cátedras y graduados en la Universidad de Valencia

1982

Enseñanza artísticaUNESCO::HISTORIA::Historia por épocas::Historia antiguaUniversidades:HISTORIA::Historia por épocas::Historia antigua [UNESCO]

Problems Associated with the Use of Chemical Class Controls in Absence of Information on the Underlying Mechanism

1982

It is simply not possible to test all chemicals in adequately performed whole animal carcinogenicity tests. Short-term tests are, therefore, frequently used as a substitute. None of these short-term tests give results which correspond in all cases to the results obtained in whole animal carcinogenicity tests. Certain short-term tests have a notoriously poor predictibility for whole animal carcinogenicity for certain classes of chemicals. Therefore, if a chemical, whose carcinogenicity is unknown, is tested in a short-term test, frequently related compounds of known carcinogenicity are also tested simultaneously as chemical class controls.

Mechanism (biology)Carcinogenicity TestWHOLE ANIMALBiologyBioinformaticsMathematical economics

La filosofía política de F. A. Hayek

1982

A.F. Hayek defendió, frente a Keynes, la necesidad de evitar la intervención estatal en el sistema libre de mercado, pues, con ello sólo se conseguiría paliar momentáneamente ciertas dificultades, pero tales medidas conducirían, a la larga, a un callejón sin salida. Sin embargo, para Hayek el sistema económico liberal no sólo es el sistema más efectivo desde un punto de vista económico, sino que es, además, el único moralmente aceptable en la medida en que sólo una economía liberal puede garantizar la libertad del individuo, valor supremo de la existencia humana. En este sentido, podemos decir que Hayek dedicó buena parte de su vida a elaborar una filosofía política que def…

Ciències polítiques Filosofia

Guerra y demografía: el caso de la Ribera Alta del Xúquer (1703-1712)

1982

UNESCO::HISTORIA::Historia por épocas::Historia antiguaMortalidadGuerra de SucesiónDemografíaCrisis demográfica:HISTORIA::Historia por épocas::Historia antigua [UNESCO]Consecuencias demográficas

Nuevas aportaciones a la cronología final de Tossal de Sant Miquel (Llíria, Valencia)

1982

Revisión de la cronología final del Tossal de Sant Miquel.

lcsh:CHumanidadeslcsh:Archaeologylcsh:CC1-960UNESCO::HISTORIA::Ciencias auxiliares de la historia::Arqueologíalcsh:Auxiliary sciences of historyHistoria:HISTORIA::Ciencias auxiliares de la historia::Arqueología [UNESCO]

Diskrete Untergruppen Von AU(n, $$ \mathbb{C} $$ )

1982

Wie wir in 3.5 gesehen haben, ist die Punktgruppe einer diskreten Bewegungsgruppe nicht notwendig endlich. Ein Satz von Frobenius, der in diesem Abschnitt bewiesen werden soll, besagt jedoch, das eine diskrete Bewegungsgruppe stets einen abelschen Normalteiler besitzt, dessen Index endlich ist und eine nur von der Dimension des Raumes abhangige Schranke nicht uberschreitet. Da in dem Frobeniusschen Beweis Eigenwerte betrachtet werden, ist es zweckmasig, Bewegungen von komplexen Hilbertraumen zu untersuchen. Wir studieren zunachst die Punktgruppen, also die Untergruppen der Gruppe U(n,\( \mathbb{C} \)) aller unitaren (n,n)-Matrizen.

4-Aminopyridine (4AP) Enhances Acetylcholine Output from the Rat Cerebral Cortex in vivo

1982

Publisher Summary This chapter discusses a study to analyze the effect of 4-aminopyridine (4AP) administration on cortical acetylcholine (ACh) output. The study was done on adult male Wistar rats under urethane or pentobarbital anesthesia. A small Perspex cylinder filled with eserinized Ringer solution was applied on the exposed cerebral cortex. The solution in the collecting cylinder was removed every 10 min and its ACh content was determined by bioassay on the dorsal muscle of the leech. In urethane anaesthetized rats, the control ACh output was 0.98 ± 0.16 ng/min/cm2 and the administration of 4AP (3 mg/kg i.p.) was followed by a rapid increase in ACh output lasting at least 40 min. The i…

Sleeping timePentobarbitalmedicine.medical_specialtyChemistry4-AminopyridineLeechBasal (phylogenetics)medicine.anatomical_structureEndocrinologyCerebral cortexIn vivoInternal medicineAnesthesiamedicineAcetylcholinemedicine.drug

Darstellung und gas-chromatographisches Verhalten höher fluorierter Nickel-Dialkyldithiocarbamate

1982

Darstellung sowie gas-chromatographisches und massenspektroskopisches Verhalten von Nickel-bis[di(pentafluorpropyl)dithiocarbamat] und Nickel-bis [di(heptafluorbutyl)-dithiocarbamat] werden beschrieben. Das Nickel-bis[di(pentafluorpropyl)dithiocarbamat] besitzt die kleinsten Retentionszeiten sowohl auf gepackten wie auf Capillarsaulen.

ChemistryClinical BiochemistryGeneral Materials ScienceGeneral MedicineMedicinal chemistryAnalytical ChemistryFresenius' Zeitschrift für analytische Chemie

Формирование и использование оборотных средств

1982

В сборнике рассматриваются актуальные проблемы формирования и использования оборотных средств в различных отраслях народного хозяйства, источники формирования в легкой промышленности, вопросы страховой защиты оборотных средств сельскохозяйственных предприятий, структура оборотных средств торговых предприятий, источники формирования оборотных средств строительных организаций. Исследуются также вопросы повышения эффективности кредитования оборотных средств.

Оборотныe средства:SOCIAL SCIENCES::Business and economics::Economics [Research Subject Categories]Кредитное планированиеApgrozāmie līdzekļiВнутрихозяйственный расчетCirculating assetsSaimnieciskais aprēķins

Sudrabaino mākoņu novērojumu žurnāls, 1982: Sigulda

1982

Digitalizēts mezosfēras mākoņu 1982. gada SIGULDAS novērojumu žurnāls: novērojumu sezonas naktis, novērotāji, MK identifikācija, meteoroloģiskā situācija, informācija par uzņemtajām fotogrāfijām. --//-- Mesospheric cloud observation data in Sigulda, 1982, digitized observation log: observation season nights, observers, MC identification, meteorological situation, information about the photos taken.

mesospheric cloudsnoctilucent cloudsmezosfēras mākoņi:NATURAL SCIENCES::Physics::Astronomy and astrophysics::Astronomy [Research Subject Categories]sudrabainie mākoņiobservation data

Wie sieht die Ladungsverteilung in Atomkernen aus?

1982

PhysicsPhysik in unserer Zeit

Endliche Untergruppen Von GL(n,ℤ)

1982

Der Satz 4.7 von Jordan und Frobenius liefert eine Abschatzung fur die Ordnung endlicher Untergruppen von GL(n,ℂ), welche keinen abelschen Normalteiler ≠ {E} besitzen. Wir wollen in diesem Abschnitt zeigen, das fur die Ordnung einer endlichen Untergruppe von $$ GL(n,\mathbb{Z}) = \{ {({x_{{ij}}})_{{1\underline \leqslant i,j\underline \leqslant n}}}|{x_{{ij}}} \in \mathbb{Z},\det ({x_{{ij}}}) = \pm 1\} $$ sehr viel genauere Aussagen gelten. Daruber hinaus lassen sich diese Gruppen mit den Untergruppen von GL(n,GF(p)) in Zusammenhang bringen.

Ultraschallgesteuerte perkutane Nierensteinentfernung

1982

Die perkutane Nephrostomie, unter Ultraschall- und Rontgendurchleuchtungskontrollen durchgefuhrt, hat eine nahezu zu vernachlassigende Komplikationsrate. Dieser Zugang kann unproblematisch zur Entfernung von Nierensteinen benutzt werden, wenn geeignete Instrumente zur Verfugung stehen und bestimmte Prinzipien beachtet werden. Die Punktion erfolgt in ublicher Weise in Lokalanasthesie, wobei die Position der Nephrostomie der Lage der Steine angepast werden mus. Zur Aufdehnung des Nephrostomiekanals wird ein Teleskopbougierset1 [1] benutzt, das eine schnelle und relativ atraumische Bougierung bis zu 27 Charr erlaubt. In Lokalanasthesie durchgefuhrt sind dazu 2 Sitzungen erforderlich, in Epidur…

Patterns of Puffing Activity in the Polytene Chromosomes of Drosophila Subobscura

1982

The puffs and Balbiani rings are the visible expression of sites of genetic activity (Beerman, 1952). Since Beermann’s original hypothesis, puffing patterns for several species of Diptera have been described. Thus for the genus Drosophila, Ashburner (1967, 1969a and 1969b) has reported the puffing pattern of Drosophila melanogaster and Drosophila simulans, Beredens (1965) of Drosophila hydei, and Moriwaki and Ito (1969) of Drosophila ananassae. In a previous paper Frutos and Latorre (1981) have determined puffing patterns of the J and U chromosomes of Drosophila subobscura. This species shows a rich chromosomal polymorphism and the puffing pattern of several chromosomal rearrangements of th…

animal structuresPolytene chromosomebiologyEvolutionary biologyBalbiani RingsDrosophila ananassaefungiDrosophila hydeiChromosomal polymorphismDrosophila melanogasterDrosophila (subgenus)biology.organism_classificationDrosophila subobscura

Notas corológicas levantinas. II

1982

Se relacionan algunos táxones cuya presencia en el levante español es importante desde el punto de vista corológico, ecológico y fitosociológico. There are cited some taxa whose location in the spanish levantine area is considered of chorological, ecological and phytosociological importance. costam@uv.es ; jbperis(a)uv.es

TáxonesTáxones ; Levante ; ValenciaLevante:CIENCIAS DE LA VIDA::Biología vegetal (Botánica) [UNESCO]ValenciaUNESCO::CIENCIAS DE LA VIDA::Biología vegetal (Botánica)

Reaktionen auf naturwissenschaftliche Konzepte und Ideen in anderen Wissenschaften des 19. Jahrhunderts

1982

HistoryHistory and Philosophy of ScienceBerichte zur Wissenschaftsgeschichte

Zusammenfassung der Diskussion zum Thema: „Pathophysiologische und therapeutische Grundlagen“

1982

Anhand welcher Kriterien last sich der Behandlungserfolg von Brandverletzten messen, und gibt es Hinweise fur entscheidende Fortschritte der Therapie in den letzten Jahren?

Time-dependent ground-state correlations in heavy ion scattering

1982

Using a time-dependent generator-coordinate method, we derive a theory for time-dependent collective ground-state correlations which account for some quantum fluctuations about a TDHF trajectory. This theory is particularly suited for evaluating spreading widths of collective one-body operators. As an application we study head-on collision of heavy ions in a one-dimensional model. As one of the prominent results we find a substantial enhancement of the spreading width of the internal excitation energy due to the correlations.

ScatteringChemistryQuantum electrodynamicsTrajectoryGround stateCollisionQuantum fluctuationEnergy (signal processing)ExcitationIon

Magnetic excitations in TbP under hydrostatic pressure

1982

Singlet ground state magnets still attract much attention. In these systems magnetic ordering occurs via the polarization of the ground state, and noticeable dispersion of well defined excitations is expected in systems where the exchange coupling is about equal to the crystal field energy. In addition, the two singlet-triplet systems PrSbl and TbP2 where single crystals are available and which have been studied in detail showed a pronounced splitting of the Г1–Г4 magnetic excitations where the triple degeneracy was lifted along [100] and [011] by a strong anisotropy of the exchange.

PhysicsCrystalCondensed matter physicsMagnetHydrostatic pressureSoft modesWell-definedGround statePolarization (waves)Anisotropy

Staging of Bladder Cancer

1982

It is well established that the prognosis of cancer patients depends on several factors including: the local extension of the tumour, and the presence of single or multiple tumours; the presence or absence of lymph-node metastases and/or distant metastases; the presence or absence of neoplastic cells in lymphatics or in blood vessels; the histopathological type and architecture; the degree of cellular differentiation; the tumour — host relationship, including the patient’s immunological reactivity.

OncologyLamina propriaPathologymedicine.medical_specialtyMultiple tumoursBladder cancerbusiness.industryCellular differentiationBladder tumourCancermedicine.diseasemedicine.anatomical_structureLymphatic systemInternal medicinemedicinePapillary carcinomabusiness

Modifications of the spontaneous bioelectric activity and of the after discharge evoked in the amygdala after pallidal injection of kainic acid in th…

1982

Publisher Summary This chapter explains the modifications of the spontaneous bioelectric activity and of the after discharge (AD) evoked in the amygdala after pallidal injection of kainic acid (KA) in the cat. An experiment was conducted in which injection of KA, a neurotoxic drug analog of glutamate, was made into the entopeduncolar nucleus (EN), the equivalent of the medial globus pallidus of primates, to observe the modifications produced on the spontaneous amygdaloid bioelectric activity and on the evoked AD. An AD was evoked in the amygdala by stimulation of the ipsilateral pyriform cortex. The duration of the amygdaloid AD was related to the stimulus parameters. In the same animal, th…

Medial globus pallidusKainic acidChemistryGlutamate receptorStimulationAmygdalachemistry.chemical_compoundGlobus pallidusmedicine.anatomical_structurenervous systemmedicineExcitatory postsynaptic potentialMicroinjectionNeuroscience

Inefficiency in the French System of Higher Education

1982

International audience; This article sets out to present the French higher education system as it exists at present, pinpointing the main causes of the malfunctioning or inefficiency now unanimously attributed to it by students, employers, governments and even teachers. The trends and reforms of the last 15 years or so already bear witness to a fundamental adaptation of the system to new guiding concerns. Yet this development is slow and uneven, being kept in check by certain institutions, themselves so well-established as to be taken for granted. We shall attempt here to identify them.

Economic growth030219 obstetrics & reproductive medicineHigher educationbusiness.industry[SHS.EDU]Humanities and Social Sciences/Education4. EducationEfficience[SHS.EDU] Humanities and Social Sciences/Education05 social sciences050301 educationSystème d'enseignement supérieurEnseignement supérieurEducation03 medical and health sciences0302 clinical medicineOrganizational changeDevelopment economicsEconomicsFranceComparative educationbusinessInefficiency0503 educationEuropean Journal of Education

Les limites de la procédure d'estimation de Kmenta d'une fonction CES généralisée

1982

Biais d'estimationModélisation économétrique[ SHS.ECO ] Humanities and Social Sciences/Economies and financesÉconométrie[SHS.ECO]Humanities and Social Sciences/Economics and Finance[SHS.ECO] Humanities and Social Sciences/Economics and Finance

Papeles de la Tierra Llana de Ávila: el entorno familiar de Santa Teresa.

1982

Marco geográficoColecciones documentalesUNESCO::HISTORIA::Historia por épocas::Historia antiguaLinajeGenealogía:HISTORIA::Historia por épocas::Historia antigua [UNESCO]

On the simultaneous determination of polynomial roots

1982

CombinatoricsProperties of polynomial rootsMathematics

Zur experimentellen Erzeugung von Ovarialtumoren

1982

Die Bemuhungen um die experimentelle Erzeugung von Ovarialtumoren im Versuchstier erbrachten seit Zondek’s Entdeckung (zitiert nach Biskind u. Biskind 1944) des Ostrogenabbaus in der Leber (1934) zahlreiche Modelle fur die funktionellen Granulosazelltumoren des Eierstocks. Fur das bei der Frau wesentlich haufigere und bedeutungsvollere Karzinom in seinen verschiedenen Formen fanden sich dagegen bisher nur vereinzelte Modelle, die meist unreproduziert blieben und fur die Prufung neuer Wege in der Therapie oder die Aufdeckung pathogenetischer Prinzipien in groserem Mas nicht genutzt werden.

Method for determination of formaldehyde in air in the pptv-range by HPLC after extraction as 2,4-dinitrophenyl-hydrazone

1982

The derivatization of formaldehyde with 2,4-dinitrophenylhydrazine and the extraction of the product formalhydrazone is studied. The determination is carried out by HPLC. Applying a cryogenic sampling technique and a sampling volume of 300l of air the detection limit of formaldehyde in air is 30 pptv and this is suitable for measurements of formaldehyde in the atmosphere. (IFU)

chemistry.chemical_classificationDetection limitChromatographyChemistryClinical BiochemistryExtraction (chemistry)FormaldehydeHydrazoneGeneral MedicineHigh-performance liquid chromatographyAnalytical Chemistrychemistry.chemical_compoundGeneral Materials ScienceDinitrophenylDerivatizationFresenius' Zeitschrift für analytische Chemie

The outcome of Wilms' tumor in infants. Italy 1970-79.

1982

Thirty-four infants under 1 year of age with Wilms’ tumor were diagnosed and treated in 14 Italian pediatric oncology units during 1970-79. The 3-year survival rates decreased with higher group unilateral tumors: 95% in group I Wilms’ tumor, 75% in group II and 20% in group III. The survival rates for children with group I and II Wilms’ tumor were similar for those who were treated with surgery and chemotherapy and those who also received postoperative radiotherapy. During 1975-79 fewer patients with group I Wilms’ tumor received radiotherapy (1 of 11) than during 1970-74 (4 of 6, p < 0.05). All these children are alive at this writing.

MaleCancer Researchmedicine.medical_specialtymedicine.medical_treatmentGroup iiPostoperative radiotherapyWilms TumormedicinePediatric oncologyHumansRetrospective StudiesChemotherapybusiness.industryInfant NewbornInfantWilms' tumorRetrospective cohort studyGeneral Medicinemedicine.diseaseInfant newbornKidney NeoplasmsSurgeryRadiation therapyOncologyItalyFemalebusiness