Šṭaṭuṭen der "Ḥevrā Maḥzîqê Baḥûrîm" Waiṭtzen

Digitalisat der Ausg. Budapesṭ, [1878/79]

Junger hisṭoriker : šrifṭn fun seminar far jidišer gešichṭe ba der jidišer akademišer haim in Warše

[redaktzie kolegie: Rafael Mahler ... ]

A study of oxygen isotopic fractionation during bio-induced calcite precipitation in eutrophic Baldeggersee, Switzerland

In order to better understand environmental factors controlling oxygen isotope shifts in autochthonous lacustrine carbonate sequences, we undertook an extensive one-year study (March, 1995 to February, 1996) of water-column chemistry and daily sediment trap material from a small lake in Central Switzerland. Comparisons between calculated equilibrium isotope values, using the fractionation equation of Friedman and O’Neil, (1977) and measured oxygen isotope ratios of calcite in the sediment-traps reveal that oxygen isotopic values of autochthonous calcite (δ18O) are in isotopic equilibrium with ambient water during most of the spring and summer, when the majority of the calcite precipitates. In contrast, small amounts of calcite precipitated in early-spring and again in late-autumn are isotopically depleted in 18O relative to the calculated equilibrium values, by as much as 0.8‰. This seasonally occurring apparent isotopic nonequilibrium is associated with times of high phosphorous concentrations, elevated pH (∼8.6) and increased [CO32−] (∼50 μmol/l) in the surface waters. The resulting weighted average δ18O value for the studied period is −9.6‰, compared with a calculated equilibrium δ18O value of −9.4‰. These data convincingly demonstrate that δ18O of calcite are, for the most part, a very reliable proxy for temperature and δ18O of the water.

Freshening of the Alaska Coastal Current Recorded By Coralline Algal Ba/Ca Ratios

Arctic Ocean freshening can exert a controlling influence on global climate, triggering strong feedbacks on ocean-atmospheric processes and affecting the global cycling of the world's oceans. Glacier-fed ocean currents such as the Alaska Coastal Current are important sources of freshwater for the Bering Sea shelf, and may also influence the Arctic Ocean freshwater budget. Instrumental data indicate a multiyear freshening episode of the Alaska Coastal Current in the early 21st century. It is uncertain whether this freshening is part of natural multidecadal climate variability or a unique feature of anthropogenically induced warming. In order to answer this, a better understanding of past variations in the Alaska Coastal Current is needed. However, continuous long-term high-resolution observations of the Alaska Coastal Current have only been available for the last 2 decades. In this study, specimens of the long-lived crustose coralline alga Clathromorphum nereostratum were collected within the pathway of the Alaska Coastal Current and utilized as archives of past temperature and salinity. Results indicate that coralline algal Mg/Ca ratios provide a 60 year record of sea surface temperatures and track changes of the Pacific Decadal Oscillation, a pattern of decadal-to-multidecadal ocean-atmosphere climate variability centered over the North Pacific. Algal Ba/Ca ratios (used as indicators of coastal freshwater runoff) are inversely correlated to instrumentally measured Alaska Coastal Current salinity and record the period of freshening from 2001 to 2006. Similar multiyear freshening events are not evident in the earlier portion of the 60 year Ba/Ca record. This suggests that the 21st century freshening of the Alaska Coastal Current is a unique feature related to increasing glacial melt and precipitation on mainland Alaska.

Die hebräische Präposition ba'ad

Heinrich Graetz

Mišnāyôt Sēder qōdāšîm : ʿim pêrûš Melô qaf naḥat melûqqaṭ miš-šenê me'ôrôt hag-gedôlîm ... ʿÔvady' mib-Berṭinôrô we- ... hag-gā'ôn Baʿal Tôsāfôt Yôm Ṭôv ; Bd. 5

Mit handschriftlichen Anmerkungen

Sefer Beʾer shevaʿ : ve-hu ḥibur tosafot ʿal kol ha-meḳomot ba-Gemara she-lo nimtsa bahem Tosafot ha-lo hemah shete masekhtot shelemot u-peraḳim harbeh ṿe-ḥidushim be-harbeh hilkhot amuḳot be-masekhet Soṭah u-ve-masekhet Ḥulin ... u-sheʾelot u-teshuvot

ḥibero Yiśśakhar bar Yisrael Lezer Parnas ...

Sefer refuʾat ha-nefesh : kolel kol baḳashot ha-ḥoleh ṿe-ha-mevaḳrim ... ṿe-khol dine ṿe-hanhagat toharat ha-metim ... ṿe-nosaf bo kol dine aninut ...

Zanṿil Hanover

Sefer Ḳohelet Shelomoh : bo niḳhalu kamah devarim ṭovim mi-sefarim yeshanim ṿa-ḥadashim, lelamed le-khol adam laʿasoḳ ba-Torah u-va-ʿavodah ... und damiṭ oykh daz froyentsimmer di pflikhṭen ḳenne, di zi gegen Goṭṭ, gegen ihren mann, gegen di ṿelṭ und gegen zikh zelbsṭ tsu beobakhṭen haṭ, izṭ alles in rayner dayṭsher shprakhe tsum driṭṭen male umgearbayṭeṭ und neben dem hebräishen angebrakht

durkhoys alles feränderṭ, ferbesserṭ und zehr fermehrṭ ʿal yede Shelomoh ben Efrayim Blokh ...

Der "Yeshivah baḥur" : (oder der yudisher Hamleṭ) ; a piese in 4 aḳṭen un 6 bilder

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