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PHILIPPINE LEADERS are aware of the need for diversifying the economy of the young republic. They have done much to encourage industrial development with the result that output doubled between 1949 and 1955. Initial tax-free status and tariff preference are granted to new and essential industries. Practically all chemical production is classified as necessary. Foreign capital is encouraged, especially from the United States, whose citizens enjoy equal rights with Filipinos under the Philippine Constitution. The chemical industry is essential to the Islands not only to conserve import dollars, but also as a necessary adjunct to production and use of agricultural products. A Five Year Industrial Development Program, now under consideration, envisages the cooperation of public and private investments in the setting up of new industries. Besides the chemical processing industries mentioned in the table (this page), others of interest to the chemical industry include those for production of rayon, power, charc...

The microslide gel-diffusion and macro-tube agglutination techniques to detect Brucella canis antibodies in dogs were compared. Sera from dogs experimentally infected with B. canis and a random sample of dog sera with unknown histories of exposure to this organism were examined. The results of the gel-diffusion method employing specific rough Brucella saline-extract antigens of B. canis and Brucella ovis were comparable to those obtained by the tube agglutination test. The easily prepared, stable R antigen in the freeze-dried form offers a convenient, simple, and reliable diagnostic method for the serological detection of canine brucellosis by the gel-diffusion test.

A comparison was made of the survival of 28 leptospiral serotypes in Fletcher semisolid medium and in the same medium containing a basal layer of Fletcher medium plus 0.7% of agar and 0.5% of activated animal charcoal. A year after culture, more motile leptospires were observed by microscope examination in the biphasic medium. Two years after culture, 4 serotypes grown in the biphasic medium and 11 in Fletcher medium did not show motile cells. Nineteen of the serotypes maintained in Fletcher medium and 25 in the biphasic medium for 2 years grew on subculture into Fletcher medium. Subcultures from the biphasic medium showed the characteristic leptospiral ring growth earlier during the incubation period.

Die ublichen Salpingographiegerate haben meistens den Nachteil, das sie entweder eine bedeutende Cervixdilatation oder dann einen festen Zug mit Gegendruck auf die Portio verlangen. Wenn man Schraubinstrumente verwendet, sind Verletzungen der Cervixschleimhaut nicht selten. Meistens sind die entsprechenden Handgriffe schmerzhaft.

Incorporation of neomycin to the culture medium was found to be effective in inhibiting Escherichia coli contaminants without interfering with the growth of serotype L. autumnalis . The growth of 12 other Leptospira serotypes was unaffected by the addition of 300 μg of neomycin per ml to Ellinghausen medium or 5 μg/ml to Fletcher medium. Neomycin-containing medium was found to be of value in the isolation of leptospiras from cultures of blood from infected laboratory animals. A higher percentage of isolates was obtained in swine kidneys from an abattoir in medium containing neomycin than resulted from the same medium without antibiotic or with 5-fluorouracil. Contaminated leptospiral cultures growing in media with 5-fluorouracil were purified by subculturing into neomycin-containing media.

La presente etude a releve chez le rat des differences entre l'AChE du cerveau et celle du muscle, en ce qui concerne les pH optima, la temperature d'inactivation, le Km, les courbes de saturation et la reponse aux inhibiteurs. L'existence de sites allosteriques differents dans l'enzyme des deux organes a aussi ete observee. L'auteur suggere que ces proprietes cinetiques distinctes tiennent, en partie du moins, a des differences histophysiologiques entre les synapses de ces deux tissus.

Sonically treated and saline-extracted antigens of Brucella ovis, B. canis, B. abortus , and B. melitensis were compared in gel diffusion, complement fixation, and serum absorption tests. All the sonically extracted antigens showed cross-reactions with sera from animals infected or immunized with these species, whereas the saline-extracted antigens were specific for the surface of the rough or smooth colonial phase of the species or strain. The saline-extracted antigens of B. ovis and B. melitensis were both eluted as a single peak in the void volume by Sephadex G-200 column chromatography, in gel diffusion had staining characteristics of lipoproteins, but in immunoelectrophoresis showed distinct mobility patterns. Serological activity for both gel diffusion and complement fixation tests was demonstrated in the immunoglobulin G-containing fraction of sera taken from sheep 12 to 412 days after infection with B. ovis . The gel diffusion test with saline extract of B. ovis is as sensitive as the complement fixation test for the diagnosis of ram epididymitis and is more practical.