Hydrogen bonding with mono- and di-carbonyls

The electronic absorption and i.r. spectroscopic studies are reported for the hydrogen bonding systems involving alcohol and various ketones. It is shown that the hydrogen bonding abilities of ketones are determined by the extent of delocalization of the lone pair electrons in their non-bonding molecular orbitals. Evidence for the formation of very weak intermolecular hydrogen bonds between alcohol and the π-electron part of the dicarbonyls has also been presented from the i.r. studies in the 3400–3700 cm−1 region.

Kohnberger family portrait.

From left to right, back row: Ernst Schueller, Hermine Schueller, Laura Stiassny, Sigmund Stiassny, Martha Pollak, Johanna Mislap and Jacob Hermann; front row: Melanie Herrmann (or Irene Tiring), Conrad Tiring, Emilie Kohnberger and Solomon Kohnberger

Yasha and Riva outside their lighting store; Martin Luter Strasse, Berlin Portraits Couples

Relatives of the Judey-Barosin and Finkel families

Specificity of deoxycytidylate antibodies

Antibodies to deoxycytidylate (dpC) were elicited in rabbits using a thyroglobulin (Tg) conjugate of dpC. The specificity of the antibodies was determined by measuring the inhibition of the binding of [3H]dpC to the antibodies by various non-radioactive nucleotides or derivatives. The antibodies were found to distinguish dpC from pC and DNA from RNA, probably due to their specificity for the conformation of the deoxycytidylate.

Paul; Montevideo, Uruguay Portraits Men

Paul was the son from a previous marriage of Hermann Judey's first wife Olga Judey nee Fischmann

Max Jacobsen Collection 1803-1894

Photocopies of documents: on the Schutzjude Moses Jacob during the Napoleonic Wars (1803-1813); other documents relating to Jewish life in Hamburg; graduating diploma from "Hoehere Buergerschule" (1866); excerpt from letter of Louis Jacobsen to his son living in Leedsat the occasion of the outbreak of the Prussian French War (1870); letter of G. Roemer to Louis Jacobsen (1866) after he was refused the marriage with Emilie Jacobsen; partial translation of will of Nathan Joseph living in Wittingen (1844); excerpt from letter of Emilie Heine to her son Ludwig who is a first-year medical student in Munich (1894).

Immunologic studies on nucleic acids and their components. I. An analysis of the specificity of anti-deoxyadenylate antibodies by a membrane-binding technique

Anti-deoxyadenylate antibodies were produced in rabbits by injecting a conjugate of deoxyadenosine 5′-phosphate with bovine serum albumin. The antisera, as analyzed by double diffusion in agar and the quantitative precipitin reaction, showed hapten-specific antibodies. The specific interaction between [3H]deoxyadenylate and antiserum was studied by a sensitive nitrocellulose membrane-binding assay. The specificity of the antibodies was analyzed by measuring the effectiveness of other nucleotides or derivatives to inhibit the hapten-antibody binding. The requirements for recognition by the antibody sites were studied by using a series of naturally occurring nucleic acid components as well as some synthetic derivatives as inhibitors. The antibodies were found to show a high degree of specificity for the whole nucleotide, the base, sugar and phosphate playing almost equally important roles. There was cross reactivity with other mononucleotides, although of a low order. The antibodies were able to react with DNA and tRNA.

Purification of antibodies for the cytokinin N6-(delta 2-isopentenyl) adenosine by affinity chromatography.

Isopentenyl adenosine antibodies useful in the investigations of the "cytokinin" functions of isopentenyl adenosine were purified by affinity chromatography. Using different affinity columns, the antibodies were purified to near complete purity. Analyses of the purified proteins revealed the presence of isopentenyl adenosine binding proteins in normal rabbit serum, which presence supports a suggested role for isopentenyl adenosine and its related compounds in animal cell division in vivo.

Improving the prediction of odour impacts from meat chicken farms with detailed ventilation and odour data

Odour from meat chicken (broiler) farms is an environmental issue affecting the sustainable development of the chicken meat industry but is a normal part of broiler production. Odour plumes exhausted from broiler sheds interact with the environment, where dispersion and dilution of the odours varies constantly, especially diurnally. The potential for odour impacts is greatest when odour emission rates are high and/or when atmospheric dispersion and dilution of odour plumes is limited (i.e. during stable conditions). We continuously monitored ventilation rate, on-site weather conditions, atmospheric stability, and estimated odour concentration with an artificial olfaction system. Detailed inspection of odour emission rates at critical times, i.e. dawn, dusk and night time, revealed that maximum daily and batch odour emission rates are not necessarily the cause of odour impacts. Periods of lower odour emission rates on each day are more likely to correspond with odour impacts. Odour emission rates need to be measured at the times when odour impacts are most likely to occur, which is likely to be at night. Additionally, high resolution ventilation rate data should be sought after to improve odour emission models, especially at critical times of the day. Consultants, regulators and researchers need to give more thought to odour emission rates from meat chicken farms to improved prediction and management of odour impacts.

Phase transition in malonic acid: An infrared study

Malonic acid is shown to undergo an interesting phase transition at 360 K when the two non-equivalent cyclic hydrogen-bonded dimers present in the low-temperature phase become equivalent.

Studies on the fractionation of total transfer ribonucleic acid and purification of an alanine transfer ribonucleic acid from chick embryo

Chick embryo tRNA, prepared by a simple large-scale method, was fractionated on three different ion-exchange columns. In all cases simple chromatographic patterns for various tRNA species were observed, indicating the presence of only a few major species of tRNA for each amino acid. By repeated chromatography one species of alanine tRNA was purified to approx. 80% purity. T1 ribonuclease digest of this purified tRNA gave a simple chromatographic pattern. Because of the simplicity of the method of preparation of tRNA from this readily available source and the presence of only a few species of tRNA for each amino acid, chick embryo is suited for the study of tRNA and its various functions in higher systems.

The Knesset Commemorative Medal

Obverse: Picture of the building of the Knesset. Reverse: Stylized design of Jerusalem.

Immunologic studies on nucleic acids and their components II. Reversible inhibition of anti-nucleoside antibodies in aqueous pyridine and its application in antibody

The effect of aqueous pyridine on a hapten—antihapten system was investigated by the quantitative precipitin reaction and by the membrane filtration method. It was found that dilute solutions of pyridine inhibited the reaction between isopentenyladenosine and its antiserum. Other solvents examined were less effective. The effect of pyridine was reversible at concentrations where complete inhibition occurred, thus indicating its use for the dissociation of antigen—antibody complexes. The inhibitory effect of pyridine was exploited in a single-step purification method for anti—isopentenyladenosine and antideoxy-adenylate antibodies. In addition, generally applicable methods for linking nucleosides and nucleotides to aminoethyl-Sepharose are described.

1933-1953 German Jewish Children's Aid

The records of the GJCA relate to the entire range of activities involved in receiving and placing refugee children from 1933 through the 1950s. The later materials are records of the European Jewish Children's Aid. Activities included: maintaining the reception center in New Jersey; transportation arrangements; placement in homes; issuing affidavits and passports; granting scholarships; naturalization of children; setting of GJCA policy. By-laws, minutes, reports, correspondence and certificate of incorporation. Correspondence of executive officers, mainly Cecilia Razovsky, 1930s. Correspondence between William Haber and Lotte Marcuse, 1939-40. File of Dr. Solomon Lowenstein. Minutes of meetings of the Finance Committee. Field reports, inter-office memoranda, financial and statistical reports. Correspondence with organizations and governmental agencies: Society of Friends (Quakers) in Vienna; Israelitische Kultusgemeinde of Vienna; Reichsvereinigung der Juden in Deutschland; Federation for the Support of Jewish Philanthropic Societies; Department of Justice; New York State Department of Social Welfare; U.S. Immigration and Naturalization Service; American Friends Service Committee; American Jewish Congress; B'nai Brith; National Council of Jewish Women. Correspondence with individuals: Max S. Perlman, William Rosenwald, Paul Felix Warburg. In addition to the general administrative records, there are thousands of case files.