Structure of (4S)-2,4-dimethyl-1,2-dihydropyrazino[2,1-b]quinazoline-3(4H),6-dione

C13HI3N302, orthorhombic, P2~2121, a = 17.443 (5), b = 11.650 (4), c = 5.784 (1)/~, Z = 4, d m = 1.456, d c = 1.429 Mg m -3, F(000) = 512, g(Cu Ka) = 0.843 mm-L The R index is 0.040 for 1358 significant reflections. The structure is stabilized by C-H...O interactions. The N-methylated eis peptide group which forms part of a six-membered ring is non-planar. The torsion angle about the peptide bond is -6.1 (4) ° and the peptide bond length is 1.337 (3) A.

Lag B'Omer Time

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Herbert B. Ehrmann papers, 1913-1970.

Contains correspondence, addresses and speeches, newspaper clippings, and published material relating primarily to Ehrmann's activity in the national and Boston chapter of the American Jewish Committee (1935-1970). Of special interest is material on the relation of the Committee to the American Jewish Conference (1943-1948), the relationship of American Jewry to the State of Israel, and the attitude of the Committee to the establishment of Israel. Also contains genealogical material, in German and in English, between Ehrmann and his relatives in Poland immediately prior World War II, and in Italy immediately after the war. Also contains letters and reports sent by Mrs. Sara Rosenfeld Ehrmann (b. 1895) by the American Jewish Joint Distribution Committee (JDC) and the United Jewish Appeal, dealing primarily with fund-raising matters.

Seixas family papers, undated, 1746-1911, 1926, 1939.

The collection contains items relating to individual members of the family as well as the Seixas family in general. Included are papers of the following persons: Isaac Mendes Seixas (1708/9-1780/1), a copy of A voyage to Hudson's--Bay, by Henry Ellis, inscribed with his name on the title page, along with additional inscriptions on the end papers (1748); and a daily prayer book printed in Amsterdam (title page missing), with an inscription on the first page indicating that the book was owned by Seixas in 1758/9, and subsequently by his grandson, Theodore J. Seixas, in 1816/17.

Franks family papers, 1711-1821, [1965-1968].

Contains business correspondence, accounts and documents relating to Jacob Franks of New York, his two sons, Moses and David, a nephew, Isaac, and a John Franks of Halifax, possibly a member of the family.

Lanthanide perchiorate complexes of 4-cyano puridine N-oxide, 4-chloro 2-picoline-B-Oxide and 4_dimethyl amino-2-Picoline N Oxide

Complexes of lanthanide perchlorates with 4-cyano pyridine-1-oxide, 4-chloro 2-picoline-1-oxide and 4-dimethyl amino 2-picoline-1-oxide have been isolated for the first time and characterized by analysis, conductance, infrared, NMR and electronic spectra.

Continuous combined microwave and hot air treatment of apples for fruit fly (Bactrocera tryoni and B. jarvisi) disinfestation

Apples at 24 ± 2 °C were heated in a pilot scale hot air assisted (40 °C) continuous pentagonal microwave system, to evaluate the effectiveness of this treatment on insect mortality (variety Mutsu) and fruit quality (variety Granny Smith). An average temperature of 53.4 ± 1.3 °C at core, bottom and flesh of the apple was recorded at the end of the treatment. One hundred percent mortality of the most tolerant stage of Queensland fruit fly (Bactrocera tryoni, Froggatt) and Jarvis's fruit fly (Bactrocera jarvisi, Tryon), were observed when the Mortality value (M52, equivalent time of isothermal treatment at 52 °C) at the slowest heating point applicable for each experiment was ≥ 50 min and ≥ 37 min, respectively. Results showed that microwave heat treatment is effective for insect disinfestation without any adverse impact on total soluble solids, flesh or peel firmness of the treated apples. The treated apples recorded a significantly higher pH and lower ion leakage than the untreated apples after 3 or 4 weeks. Therefore, the microwave heat treatment has the potential to be developed as an alternative chemical free quarantine treatment against economically significant insect pests. Industrial relevance Hot air assisted microwave heating of fruits and vegetables, is more cost effective compared to vapour heat treatment and ionising radiation for disinfestation of insects. Microwave treatment is environmentally friendly compared to fumigation and chemical treatments. Hot air assisted microwave disinfestation can be performed at farms or centralised pack houses since the capital cost would be comparatively lower than vapour heat or ionising radiation treatments.

Plan uchastka kolfonda lit "B" Krivorogskogo okruga Mikhaĭlovskogo raĭona ploshchadi︠u︡ 495 desi︠a︡tin

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Plan uchastka kolfonda litera "B" Krivorogskogo okruga Mikhaĭlovskogo raĭona ploshchadiʻ︠u︡ 495 desi︠a︡tin

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Plan uchastka kolonizat︠s︡ionnogo fonda pod literami "A" i "B" Krivorogskogo okruga Mikhaĭlovskogo raĭona ploshchadiʻ︠u︡ 1356 desi︠a︡tin

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Plan uchastka kolfonda pod literami "Zh" i "B" Mikhaĭlovskogo raĭona Krivorogskogo okruga

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Call for meeting regarding I. B. Seixas offering himself as hazzan

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Letter from Abraham Touro to Moses B. Seixas

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