Verslag uitgebragt in de openbare vergadering van het Nederlandsch-Israelitisch armbestuur te Amsterdam

door I. T. Philips

Wat is toch de Talmud? En wat ist een Talmud-jood? : Iets uit en over de verderfelijke geloofspunten en praktijken van het jodendom

door August Rohling. Geheel herzien en verbeterd door Max. de Lamarque

Hebreeuwsche nomenclator : zijnde een bundel van Hebreeuwsche woorden, spreuken enzamenspraken

voor D. A. Lissaur

Keur van grafsteenen op de Nederl.-Portug.-Israe͏̈l. begraafplaats te Ouderkerk aan den Amstel met beschrijving en biographische aanteekeningen : tot inleiding een en ander over deze en de vroegere begraafplaats der Nederl.-Portug.-Israe͏̈l. gemeente te Amsterdam ; eerste bundel

von D. Henriques de Castro

Ms. Ff. Mus. 1503 - Am 2ten Christ=Feyertage : Wie theuer ist deine Güte, Gott, daß pp. ; C. A. T. B., 2 Clarinetti, 2 Flauti traversi, 2 Hautbois se piace, 2 Violini, 1 Viola, Violoncello et Organo

von Telemann

David Montezinos : de stichter der "Livraria D. Montezinos" ; (1 Thebet 5589-5674)

door J. S. da Silva Rosa

Real-time analysis of δ13C- and δD-CH4 in ambient air with laser spectroscopy: method development and first intercomparison results

In situ and simultaneous measurement of the three most abundant isotopologues of methane using mid-infrared laser absorption spectroscopy is demonstrated. A field-deployable, autonomous platform is realized by coupling a compact quantum cascade laser absorption spectrometer (QCLAS) to a preconcentration unit, called trace gas extractor (TREX). This unit enhances CH4 mole fractions by a factor of up to 500 above ambient levels and quantitatively separates interfering trace gases such as N2O and CO2. The analytical precision of the QCLAS isotope measurement on the preconcentrated (750 ppm, parts-per-million, µmole mole−1) methane is 0.1 and 0.5 ‰ for δ13C- and δD-CH4 at 10 min averaging time. Based on repeated measurements of compressed air during a 2-week intercomparison campaign, the repeatability of the TREX–QCLAS was determined to be 0.19 and 1.9 ‰ for δ13C and δD-CH4, respectively. In this intercomparison campaign the new in situ technique is compared to isotope-ratio mass spectrometry (IRMS) based on glass flask and bag sampling and real time CH4 isotope analysis by two commercially available laser spectrometers. Both laser-based analyzers were limited to methane mole fraction and δ13C-CH4 analysis, and only one of them, a cavity ring down spectrometer, was capable to deliver meaningful data for the isotopic composition. After correcting for scale offsets, the average difference between TREX–QCLAS data and bag/flask sampling–IRMS values are within the extended WMO compatibility goals of 0.2 and 5 ‰ for δ13C- and δD-CH4, respectively. This also displays the potential to improve the interlaboratory compatibility based on the analysis of a reference air sample with accurately determined isotopic composition.

Be-shir ṿe-ḳol todah : gezangen, lofzeggingen en gebeden voor vrijdagavond en zaterdagavond vertaald en van aantekeningen voorzien

door B. J. Katan ; met een Muziekbijlage van L. D. Staal

Un grand peuple de l'Afrique Equatoriale : eléments d'une monographie sur l'Urundi et les Warundi ; série de 196 articles ethnol. sur le pays, les mœurs, les coutumes ... de cette intéressante tribu africaine de l'Afrique Orientale Allemande

par J. M. M. van der Burgt

Le Congo : colonie d'exploitation et colonie de peuplement

par A. Prayon-Van Zuylen

Catalogus van de tentoonstelling van Joodsche oorlogslitteratuur : gehouden te Amsterdam in de bibliotheek van het Portugeesch Israelietisch Seminarium "Ets Haim" ... van zondag 23 Nissan 5677 (15 April 1917) tot en met vrijdag 28 Nissan 5677 (20 April 1917) ten bate van het inzamelingswerk voor de Joodsche oorlogsslachtoffers

[bewerkt door J.S. Da Silva Rosa]

External assessment of myocardial glucose metabolism with $\sp{18}$F-2 -deoxy-2 -fluoro-D-glucose

Despite the popularity of the positron emitting glucose analog, ($\sp{18}$F) -2-deoxy-2-fluoro-D-glucose (2FDG), for the noninvasive "metabolic imaging" of organs with positron emission tomography (PET), the physiological basis for the tracer has not been tested, and the potential of 2FDG for the rapid kinetic analysis of altered glucose metabolism in the intact heart has not been fully exploited. We, therefore, developed a quantitative method to characterize metabolic changes of myocardial glucose metabolism noninvasively and with high temporal resolution.^ The first objective of the work was to provide direct evidence that the initial steps in the metabolism of 2FDG are the same as for glucose and that 2FDG is retained by the tissue in proportion to the rate of glucose utilization. The second objective was to characterize the kinetic changes in myocardial glucose transport and phosphorylation in response to changes in work load, competing substrates, acute ischemia and reperfusion, and the addition of insulin. To assess changes in myocardial glucose metabolism isolated working rat hearts were perfused with glucose and 2FDG. Tissue uptake of 2FDG and the input function were measured on-line by external detection. The steady state rate of 2FDG phosphorylation was determined by graphical analysis of 2FDG time-activity curves.^ The rate of 2FDG uptake was linear with time and the tracer was retained in its phosphorylated form. Tissue accumulation of 2FDG decreased within seconds with a reduction in work load, in the presence of competing substrates, and during reperfusion after global ischemia. Thus, most interventions known to alter glucose metabolism induced rapid parallel changes in 2FDG uptake. By contrast, insulin caused a significant increase in 2FDG accumulation only in hearts from fasted animals when perfused at a sub-physiological work load. The mechanism for this phenomenon is not known but may be related to the existence of two different glucose transporter systems and/or glycogen metabolism in the myocardial cell.^ It is concluded that (1) 2FDG traces glucose uptake and phosphorylation in the isolated working rat heart; and (2) early and transient kinetic changes in glucose metabolism can be monitored with high temporal resolution with 2FDG and a simple positron coincidence counting system. The new method has revealed transients of myocardial glucose metabolism, which would have remained unnoticed with conventional methods. These transients are not only important for the interpretation of glucose metabolic PET scans, but also provide insights into mechanisms of glucose transport and phosphorylation in heart muscle. ^

High-resolution multi-proxy record of the last glacial period from Lake Van, eastern Anatolian high plateau, Turkey

Detailed analyses of the Lake Van pollen, Ca/K ratio and stable oxygen isotope record allow the identification of millennial-scale vegetation and environmental changes in eastern Anatolia throughout the last glacial (~75-15 ka BP). The climate within the last glacial was cold and dry, with low arboreal pollen (AP) levels. The driest and coldest period corresponds to Marine Isotope Stage (MIS) 2 (~28-14.5 ka BP) dominated by the highest values of xerophytic steppe vegetation. Our high-resolution multi proxy record shows rapid expansions and contractions of tree populations that reflects variability in temperature and moisture availability. This rapid vegetation and environmental changes can be linked to the stadial-interstadial pattern of the Dansgaard-Oeschger (DO) events as recorded in the Greenland ice cores. Periods of reduced moisture availability were characterized by enhanced xerophytic species and high terrigenous input from the Lake Van catchment area. Furthermore, comparison with the marine realm reveals that the complex atmosphere-ocean interaction can be explained by the strength and position of the westerlies, which is responsible for the supply of humidity in eastern Anatolia. Influenced by diverse topography of the Lake Van catchment, larger DO interstadials (e.g. DO 19, 17-16, 14, 12 and 8) show the highest expansion of temperate species within the last glacial. However, Heinrich events (HE), characterized by highest concentrations of ice-rafted debris (IRD) in marine sediments, are identified in eastern Anatolia by AP values not lower and high steppe components not more abundant than during DO stadials. In addition, this work is a first attempt to establish a continuous microscopic charcoal record over the last glacial in the Near East, which documents an initial immediate response to millennial-scale climate and environmental variability and enables us to shed light on the history of fire activity during the last glacial.