Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| effect of enteric micro-organisms on intestinal sugar and fatty acid absorption. | the effect of micro-organisms contaminating the upper intestinal contents of malnourished children on intestinal absorption of 3-0 methyl-alpha-d-glucopyranose (3-m.g.) and oleic acid was studied in rats in vivo. oleci acid absorption was unaffected by non-pathogenic e. coli but decreased by e. coli 0111, salmonella paratyphi b., shigella sonnei and candida sp. this effect was probably explained by intestinal secretion diluting the test solution leading to a decreased diffusion gradient for solu ... | 1977 | 603464 |
| [serum l-asparginase in the agouti (dasyprocta sp) iv. enzymatic inhibition by specific antibodies]. | 1977 | 605332 | |
| [pathomorphological studies of trichocephaliasis in sheep]. | the morphologic study of 22 sucking and weaned lambs (8 experimentally and 14 spontaneously infected with trichocephalus) revealed that in its biologic development in the host trichocephalus fixes itself firmly and penetrates deeply at its head and into the mucous membrane of the caecum and the large intestine. besides, at these sites morphologic lesions in cases of strong infection have been established in the liver, kidneys, spleen, and lung. the desquamated epithelial cells and the erythrocyt ... | 1977 | 605499 |
| [parasitism of the simuliid (diptera: simuliidae) by mermithidae (nematoda) in western africa. iv. description of isomeris lairdi, n.sp., parasite of simulium damnosum]. | 1977 | 606350 | |
| a new strain of streptomyces sp. producing beta-rubromycin like antibiotic. | 1977 | 606681 | |
| parasites of man in remote areas of central and south sulawesi, indonesia. | a biomedical survey was conducted in 10 villages in remote, high mountain valleys of central and south sulawesi, indonesia to learn whether oriental schistosomiasis was endemic and to determine the prevalences of other intestinal parasites, malaria and filariasis in those areas. although persons with oriental schistosomiasis were found in three villages of south sulawesi, follow-up inquiries revealed that these had recently migrated from a known schistosomiasis area in central sulawesi. other in ... | 1977 | 607428 |
| [mycoplasma sp. isolation in sick and normal cats (author's transl)]. | this paper deals with the presence of mycoplasmosis in sick and normal cats lodged by u.i.p.a. (união internacional de proteçäo aos animais) são paulo, brazil. in a group of 78 cats, 10.41% of mycoplasma was found in sick cats and 0% in normal cats, in a total of 6,41% of positive cases. | 1977 | 607912 |
| characterization of triton x 100 extracted colipase from porcine pancreas. | colipase was isolated from porcine pancreas homogenate prepared in the presence of detergent (triton x 100). after precipitation by ammonium sulfate and ethanol, the cofactor was purified by chromatography on sp-sephadex in the presence of triton x 100 and on deae-cellulose in the absence of detergent. two molecular forms of porcine colipase were obtained. they represent 80 per cent (colipase a) and 20 per cent (colipase b), respectively, of the total colipase. valine is the n-terminal residue o ... | 1977 | 607996 |
| evaluation of a new disposable plate dialyzer and the adverse effect of recirculation single pass dialysis on clearance. | a new disposable plate dialyzer (pf = travenol paraflo 1.0 m2 11.5 mu cuprophan), is compared with an older device of similar design (gl = gambro lundia nova 1.0 m2 13.5 mu cuprophan). the ultrafiltration rate (uf) relative to dialyzer pressure (dp) was greater for gl (3.90 +/- .02 dp ml/min) than for this lot of pf (2.71 +/- .01 dp ml/min). in vivo clearance of urea and creatinine in single pass for pf was 132 +/- 5 ml/min and 106 +/- 5 ml/min, respectively, at mean blood rate of 200 ml/min. rs ... | 1977 | 608874 |
| influence of environmental factors on pesticide levels in sport fish. | the extent of pesticide contamination of sport fish from lakes and reservoirs in indiana is described. environmental and water quality factors significantly influenced the concentration of pesticides in fish. the influence of these factors was different between natural lakes and humanmade reservoirs. largmouth bass (micropterus salmoides), sunfish (lepomis sp), and bullheads (ictalurus sp.) were collected and analyzed for dieldrin, aldrin, ddt, dde, heptachlor, and heptachlor epoxide. the collec ... | 1977 | 609512 |
| [researchs on pseudophyllidea (carus, 1813) from the south of chile. i. preliminary investigation on infection by plerocercoids of diphyllobothrium sp. in salmo gairdneri richardson, 1836 from calafquen lake (39 degrees 32's, 79 degrees 09'w), chile (author's transl)]. | 2006 | 610722 | |
| [the diagnosis of chronic pancreatitis: value of endoscopic retrograde pancreatography (erp), of secretin-pancreozymin test (sp-test) corrected for volume loss and of sonography]. | 2016 | 612011 | |
| comparative studies on activities of gentamicin, sisomicin, tobramycin and amikacin (bb-k8) against pseudomonas sp. | activities of gentamicin, sisomicin, tobramycin and amikacin against 561 strains of pseudomonas sp. bacilli were evaluated. tobramycin was from two to eight times more active against pseudomonas sp. than gentamicin. no strains resistant to amikacin were encountered. correlation between the size of the growth inhibition zone and minimal inhibitory concentration was determined as regression lines for all the tested antibiotics. sisomicin and tobramycin showed lowest correlation, and gentamicin and ... | 1977 | 612299 |
| [experimental research on the life cycle of opisthorchis chabaudi n. sp. description of the adult (author's transl)]. | o. chabaudi n. sp. is experimentally obtained from cercariae, born into rediae and naturally produced by the snail gabbia neumanni (martens, 1898). cercariae encyst into some tadpoles. the adulte grows into the biliary ducts of the cat. o. chabaudi is mainly characterized by its outline, therefore by the shape and position of its reproductive systems. accidental human contamination possibility is not denied. | 1977 | 613964 |
| [gallegostronglyus ibicensis n. gen., n. sp. (nematoda: metastrongylidae), a lung parasite of mus musculus linnaeus, 1758 (rodentia: muridale) in ibiza (balearic islands) (author's transl)]. | description of gallegostrongylus ibicensis n. gen., n. sp., a metastrongyle parasitizing the lungs of mus musculus linnaeus, 1758 (rodentia: muridae) in ibiza (balearic islands). gallegostrongylus n. gen. is proposed to include in the angiostrongylinae the parasites of the lungs of rodents, with bursal rays of reduced or middle size, dorsal ray consisting of two branches completely separated and located wide apart from each other, and spicules imbricated, arched and winged. | 1977 | 613967 |
| ixodes (afrixodes) neitzi, n. sp. (acarina: ixodidae) from the mountain reedbuck in south africa. | ixodes (afrixodes) neitzi n. sp. is described from females and males collected from the mountain reedbuck (redunca fulvorufula) at loskop dam nature reserve, transvaal, republic of south africa. information is provided to distinguish this new species from other closely related ixodes species that occur in the ethiopian region. its predilection sites are noted and the area in which it occurs is described briefly. | 1977 | 614531 |
| [presence of resistance factors to antibiotics in multiresistant enterobacteria]. | the present study was carried out with 111 multiresistant pathogenic strains of enterobacterias isolated from different sources with increased resistance to three or more antibiotics. among the identified species are included e. coli, shigella sp., salmonella oranienburg, klebsiella pneumoniae and citrobacter freundii. in general, the minimal inhibitory concentration of antibiotics was above 100 microgram/ml and in some cases it was superior to 1000 microgram/ml. resistance transfer factors were ... | 1977 | 614652 |
| an investigation on taeniasis and cysticercosis in bali. | a survey was carried out in 3 villages in bali to determine the prevalence of taeniasis in humans and cysticercosis in pigs. a total of 548 people were examined and taenia sp. eggs were found in the faeces of 11. four individuals passed proglottids; two t. solium and two t. saginata and three of these people also passed eggs in the faeces. a total of 12 or 2.2% were infected. three pigs from a slaughterhouse were found heavily infected with cysticercus cellulosae. socio-ecological data indicate ... | 1977 | 614710 |
| [mixed sero-epidemiologic study of arbovirus-arenavirus in the small mammals of tunisia]. | blood samples of 156 small mammals caught in tunisia in 1976 and 1977 were examined for the presence of antibodies to some arboviruses and arena-viruses. haemagglutination-inhibiting antibodies against west nile virus were detected in 19.8 0/0 of examined sera, mainly from mus sp., rattus rattus, eliomys tunetae in the northern part of the country and from ctenodactylus gundi and pipistrellus kuhli in the south. in addition, antibodies against uukuniemi and bhanja were found in 3.2 0/0 and 4.5 0 ... | 1977 | 615674 |
| [separation and identification of fatty acids as anti-inflammatory principle from mycelium of streptomyces sp. (author's transl)]. | 1977 | 616826 | |
| regulation of cellvibriocin activity. | attempts were made to enhance the production of cellvibriocin, the bacteriocin produced by cellvibrio sp. ncib 9916, by a study of cultural conditions in agar (solid) media. in such media cellvibriocin was unstable: within 24 h all activity disappeared at 45 degrees c, 70% at 37 degrees c and more than 50% within 5 days at 5 degrees c. the temperature at which the producer strain was grown was critical, 25 degrees c being optimal. cellvibriocin activity was markedly affected by the composition o ... | 1977 | 617829 |
| the replication and titration of iridescent virus type 22 in spodoptera frugiperda cells. | a plaque assay for iridescent virus type 22 (from simulium sp.) using spodoptera frugiperda cells has been devised, and the kinetics of growth of the virus in this cell line have been determined. the virus particle/p.f.u. ratio was 75 +/- 8, and the p.f.u./tcid50 ratio was 0.56 +/- 0.11. | 1978 | 621497 |
| [new mosquito species, aedes (ochlerotatus) sergievi sp. n]. | the description of female, male genitalia and the fourth instar larva of a new species of mosquito, a. (o.) sergievi, from the tuva assr (south siberia) is given as well as data on its breeding places. it belongs to spring and early summer species and breeds both in fresh and salt waters. anal gills in the larvae breeding in fresh waters are significantly (p greater than 0.001) longer than those from salt waters (mean ratio between the upper anal gill length and saddle length is 2/3 and 1/2, res ... | 2007 | 622297 |
| isorenin, pseudorenin, cathepsin d and renin. a comparative enzymatic study of angiotensin-forming enzymes. | 1. renin was purified 30 000-fold from rat kidneys by chromatography on deae-cellulose and sp-sephadex, and by affinity chromatography on pepstatinyl-sepharose. 2. the enzymatic properties of isorenin from rat brain, pseudorenin from hog spleen, cathepsin d from bovine spleen, and renin from rat kidneys were compared: isorenin, pseudorenin and cathepsin d generate angiotensin from tetradecapeptide renin substrate with ph optima around 4.9, renin at 6.0. with sheep angiotensinogen as substrate, i ... | 1978 | 623774 |
| [substrate specificity of rnase from actinomyces sp., strain 236, producing mono- and oligonucleotides with 5'-phosphate end groups]. | 1978 | 623846 | |
| the effects of sp-111, a water-soluble thc derivative, on neuronal activity in the rat brain. | 1978 | 624059 | |
| antimicrobial activity in vitro of cefaclor, a new oral cephalosporin. | the antimicrobial activity of cefaclor, a new orally administered cephalosporin derivative, was studied in vitro against a variety of gram-positive and gram-negative clinical isolates. both penicillin-resistant and penicillin-susceptible strains of staphylococcus aureus were susceptible to cefaclor, with mean mics of 1.44 and 0.93 microgram/ml, respectively. however, the mbc for penicillin-resistant s. aureus was higher than that for the penicillin-susceptible strains. all strains of streptococc ... | 1978 | 624778 |
| the effects of temperature and growth rate on the proportion of unsaturated fatty acids in bacterial lipids. | the effects of temperature and growth rate on the fatty acid composition of the extractable lipids of four mesophilic and three psychotrophic bacteria were examined. two of the mesophiles (escherichia coli and pseudomonas aeruginosa) increased the proportion of unsaturated fatty acids in their lipids with decreasing temperature over their whole growth temperature range. the other mesophiles (enterobacter aerogenes and lactobacillus casei) increased the proportion of unsaturated fatty acids with ... | 1978 | 624935 |
| production of an antibiotic substance by bacillus licheniformis within the digestive tract of gnotobiotic mice. | in monoxenic mice, vegetative cells and spores of bacillus licheniformis were enumerated and in vivo antibiotic production was measured at various levels of the digestive tract and in the feces. the apparent independence of vegetative cell and spore populations in the cecum and feces, as well as the marked fluctuations of these two populations in the stomach and small intestine, suggested that sporulation of b. licheniformis and production of antibiotic occur only in the upper levels of the dige ... | 1978 | 626497 |
| intracerebral migration of cuterebra larva in a kitten. | verminous encephalitis in a 4-week-old kitten was manifested by depression, hysteria, and terminal convulsions. necropsy revealed a second instar of cutebra sp in the right cerebral hemisphere. the main lesions in the brain were those of acute focal hemorrhagic encephalomalacia. | 1978 | 627516 |
| dirofilaria cancrivori sp. n. (nematoda: filarioidea from the crabdog, procyon cancrivorus, in guyana. | dirofilaria cancrivori sp. n. is described from subcutaneous tissues of the crabdog, procyon cancrivorus, in guyana, south america. the filarid is morphologically distinct from dirofilaria tenuis, parasite of a related host, the raccoon, in the southern united states, and all other species of dirofilaria. the parasite can be distinguished from other dirofilarias based on a combination of morphological features including its size, number, and arrangement of caudal papillae on the male tail, size ... | 1978 | 627950 |
| dipodomydectes americanus gen. et sp. n. (acari: hypoderidae) from the kangaroo rat. | 1978 | 627953 | |
| raillietia whartoni sp. n. (acari-mesostigmata) from the uganda kob. | 1978 | 627954 | |
| phalacropsylla oregonensis sp. n., with a key to the species of phalacropsylla rothschild 1915 (siphonaptera: hystrichopsyllidae). | a new species of flea belonging to the genus phalacropsylla is described. the known distribution and host associations of the 5 recognized species are briefly discussed, and a key to these taxa is included. | 1978 | 627957 |
| allencotyla pricei sp. n. (microcotyloidea: heteraxinidae) from the gills of the pile surfperch, damalichthys vacca (girard), in southern california. | allencotyla pricei sp. n. (monogenea: heteraxinidae) from the gills of pile surfperch, damalichthys vacca (girard), from redondo beach, california is described. this species is distinguished primarily by the prebifurcal position of the genital atrium and vagina, and by possessing an elongate esophagus. the systematic arrangement of microcotyloid forms characterized by an asymmetric haptor is discussed. | 1978 | 627974 |
| parasitism in some east atlantic bathypelagic fishes with a description of lecithophyllum irelandeum sp. n. (trematoda). | eighty-four bathypelagic fishes collected at depths from 975 to 1,555 m in the eastern atlantic ocean were examined for animal parasites. ninety-five percent (including all the gonostomatidae) were free from parasites. a digenetic trematode, lecithophyllum irelandeum sp. n. from the stomach of one specimen of the family. melamphaidae, is described. one copepod was found in the kidney of bathylagus euryops, and another copepod infected the liver of a melamphaid. this paucity of parasites is of a ... | 1978 | 627975 |
| echinoparyphium speotyto sp. n. (trematoda: echinostomatidae) from the burrowing owl in oklahoma, with a discussion of the genus echinoparyphium. | 1978 | 627976 | |
| intestinal helminths of some nile fishes near cairo, egypt with redescriptions of camallanus kirandensis baylis 1928 (nematoda) and bothriocephalus aegyptiacus rysavý and moravec 1975 (cestoda). | of 10 species of nile fishes collected during the summer of 1975 at giza near cairo, egypt, 7 harbored 7 helminth species. recovered material includes 3 species of nematodes: camallanus kirandensis baylis 1928 (new host and geographical record), cucullanus barbi baylis 1923, and rhabdochona congolensis campana-rouget 1961 (new host record); three species of cestodes: khawia sp. (new in africa), polyonchobothrium clarias (woodland 1925) meggitt 1930, and bothriocephalus aegyptiacus rysavý and mor ... | 1978 | 627980 |
| antiproliferative activity of highly purified mouse interferon: brief communication. | the antiproliferative effect of mouse l-cell interferon, purified by bovine serum albumin--agarose chromatography (which yields a sp act of 3 x 10(8) international reference u/ml protein), and its two subcomponents, obtained by ch-sepharose 4b chromatography, has been studied in balb/3t3 fibroblast cultues. four to 10 international reference u of interferon/ml resulted in a 50% inhibition of dna synthesis and cell growth, as determined by the incorporation of [3h]thymidine and cell counts, respe ... | 1978 | 628021 |
| gill parasites octomacrum spinum (trematoda: monogenea) and unicauda sp. (protozoa: myxosporidea) from the stoneroller minnow (campostoma anomalum) in west virginia. | 1978 | 629005 | |
| life cycle of isospora burrowsi n sp (protozoa: eimeriidae) from the dog canis familiaris. | exogenous and endogenous stages of isospora burrowsi n sp from the dog are described. oocysts were spherical or ellipisoidal and 17 to 22 by 16 to 19 micrometer (mean 20.3 by 17.3 micrometer). micropyle, oocyst residuum, and polar granule were not present. sporocysts were 12 to 16 by 8 to 11 micrometer (mean 14.4 by 9.7 micrometer). stieda body was absent, but a sporocyst residuum was present. endogenous stages were in the caudal three-fifths of the small intestine and in the cecum. mature 1st-g ... | 1978 | 629454 |
| immunity to lancefield's group e. streptococcus: flank inoculation of susceptible and immune swine. | healthy swine flank inoculated with lancefield's group e streptococcus sp developed characteristic signs of streptococcal lymphadenitis of swine; however, abscesses were found in prefemoral lymph nodes rather than in cervical lymph nodes. after 6 months, swine (recovered from the cervical form of streptococcal lymphadenitis of swine caused by oral exposure to group e streptococcus) were flank inoculated with group e streptococcus sp. only transitory signs of diseases developed and abscesses did ... | 1978 | 629468 |
| the linkage of sugar phosphate polymer to peptidoglycan in walls of micrococcus sp. 2102. | 1. protein-free walls of micrococcus sp. 2102 contain peptidoglycan, poly-(n-acetylglucosamine 1-phosphate) and small amounts of glycerol phosphate. 2. after destruction of the poly-(n-acetylglucosamine 1-phosphate) with periodate, the glycerol phosphate remains attached to the wall, but can be removed by controlled alkaline hydrolysis. the homogeneous product comprises a chain of three glycerol phosphates and an additional phosphate residue. 3. the poly-(n-acetylglucosamine 1-phosphate) is atta ... | 1978 | 629757 |
| fad-dependent malate dehydrogenase, a phospholipid-requiring enzyme from mycobacterium sp. strain takeo. purification and some properties. | fad-dependent malate dehydrogenase, a phospholipid-requiring enzyme, was homogeneously purified from the particulate fraction of mycobacterium sp. strain takeo. the isolated enzyme contains no fad and few phospholipid, and has a specific activity of 300-360 units/mg of protein. in the assay system without addition of phospholipid (cardiolipin), the enzyme activity was only about 3% of maximum activity. the molecular weight was estimated to be 51 000-55 000 by four methods. titration by p-chlorom ... | 1978 | 629992 |
| intraspecific variation of adult leucochloridium sp. (digenea) from natural and experimental infections. | 1978 | 630476 | |
| quantitation of anticonvulsant drugs in serum by gas-chromatography on the stationary phase sp-2510. | a new column packing, sp-2510 da (supelco, inc., bellefonte, pa. 16823), is an excellent stationary phase for the determination of a wide variety of anticonvulsant drugs by gas--liquid chromatography without derivatization. however, when uncomplicated extraction procedures are used, serum cholesterol interferes with the determination of primidone. by the simple expedient of adding a short "pre-column" containing another phase (sp-2250 da) the problem is overcome. | 1978 | 630711 |
| effects of flufenamic acid, dexamethasone, and sp 54 (a pentosanpolysulphate) on the histological appearance of murine embryonic tibia explants cultured in vitro. | the histological investigation of cultured, embryonic tibia explants of nmri-mice showed, after a six day period, that incubation concentrations of flufenamic acid, sp54 (a pentosanopolysulphate), and dexamethasone (9alpha-fluor-16-beta-methyl-prednisolone) predominantly induced resorptive and degenerative processes, in different degrees, affecting cartilage and bone matrix. in the experiments with flufenamic acid and dexamethasone, the degenerative processes were found to be accompanied by the ... | 1978 | 631974 |
| netilmicin synergy with carbenicillin or cefamandole against serratia. | twenty clinical isolates of serratia sp. were tested against netilmicin, gentamicin, carbenicillin and cefamandole alone (broth and agar dilution) and in combination (agar dilution). broth and agar dilution minimal inhibitory concentrations agreed to within a two-fold dilution in 96% of the tests. overall, 95% of the isolates were susceptible to netilmicin regardless of susceptibility to gentamicin or carbenicillin. netilmicin-carbenicillin synergy was seen in 55% of the strains and netilmicin-c ... | 1978 | 632223 |
| human cationic trypsinogen. purification, characterization, and characteristics of autoactivation. | human pancreatic cationic trypsinogen has been purified to homogenity from an acetone powder of pancreatic tissue. after an initial ion exchange chromatography step on sulfopropyl (sp)-sephadex at ph 2.6, cationic trypsinogen was separated from the majority of trypsin activity by passage through an affinity column of lima bean trypsin inhibitor-agarose at high ionic strength. the zymogen was then further purified by affinity chromatography on the same material at low ionic strength. highly purif ... | 1978 | 632297 |
| aerobic bacterial flora of oral and nasal fluids of canines with reference to bacteria associated with bites. | oral and nasal fluids of 50 dogs were examined to determine the prevalence of aerobic bacteria frequently associated with animal bite wounds. the most frequently isolated microorganisms included: iij, ef-4, pasteurella multocida, staphylococcus aureus, staphylococcus epidermidis, group d streptococci, corynebacterium sp., enterobacteria, neisseria sp., moraxella sp., and bacillus sp. other species and genera were infrequently recovered and may represent transient flora. the high incidence of iij ... | 1978 | 632349 |
| bacterial contamination in a modern operating suite. 4. bacterial contamination of clothes worn in the suite. | clean clothes in the staff dressing rooms were heavily contaminated with bacteria, mainly bacillus sp., but staphylococcus aureus were found on 14% and clostridium sp. on 10% of the garments examined. a comparison of the occurrence of staph. aureus on shirts worn by staff in wards and operating departments showed ward shirts to be contaminated more heavily and with more strains. examination of sterile gowns worn by surgeons showed that 70% were contaminated with staph. aureus after operation. of ... | 1978 | 632560 |
| evaluation of poly s-179 as a stationary phase for the gas-liquid chromatography-mass-spectrometry of bile acid methyl ester acetates. | the stationary phase poly s-179 has been found to offer distinct advantages over the previously reported sp-525 for the gas-liquid chromatographic separation of bile acid methyl ester acetates. relative retention times of these bile acid derivatives are compared on the two phases. | 1978 | 632691 |
| resistance of selected saprobic and zoopathogenic fungi to cycloheximide. | spore germination was used as an assay to measure the sensitivities of selected fungi (achlya bisexualis, cladosporium sp., trichophyton mentagrophytes and microsporum gypseum) to cyclohexamide and to determine their abilities to adapt to the drug. two patterns of response were noted. the saprobes, a. bisexualis and cladosporium sp., demonstrated acquired resistance. spores from hyphae previously exposed to cycloheximide either germinated in the presence of concentrations of the drug that comple ... | 1978 | 632807 |
| substance p-like immunoreactivity in cultured spinal ganglia from chick embryos. | the localization of substance p (sp) or a sp-like peptide in cultured ganglia from chick embryos was studied by the indirect immunofluorescence technique. ganglia from 8-16 days old chick embryos and from newly hatched chickens were cultured in a control medium or in the presence of nerve growth factor (ngf). addition of colchicine and exposure to different explanted peripheral tissues were also tried. ganglia from the younger embryos (8-12 days) cultured for 24 h with added ngf showed a weak sp ... | 1978 | 632849 |
| ecto- and endoparasites of the black bear in northern wisconsin. | parasites collected from free-ranging black bears, ursus americanus, in northern wisconsin included dermacentor variabilis, d. albipictus, ixodes scapularis, demodex sp., trichodectes pinguis euarctidos, baylisascaris transfuga and dirofilaria ursi. mange, possibly caused by the demodex sp., also was observed. dental caries were common and periodontal disease was observed in one animal. | 1978 | 633522 |
| an aminopeptidase of human neutrophil leucocytes--its possible role in enhanced vascular permeability. | an aminopeptidase of human leukocyte lysosomes was partially purified by chromatography on sp-sephadex, sephadex g-200 and qae-sephadex. by qae-sephadex and isolelectric focusing it showed microheterogeneity, focusing at ph 3.7 and 4.1. by gel filtration its molecular weight was estimated to be approx. 200,000. the enzyme had leucine amino peptidase activity and pharmacological assays indicated that it converted lysyl- or methionyl-lysyl-bradykinin to bradykinin. conversion of lysyl-bradykinin t ... | 1978 | 636959 |
| cometabolism of ddt analogs by a pseudomonas sp. | a pseudomonas sp. capable of growth on several nonchlorinated and mono-p-chloro-substituted analogs of ddt as a sole carbon source degraded bis(p-chlorophenyl)methane and 1,1-bis(p-chlorophenyl)ethane only in the presence of diphenylethane. the products p-chlorophenylacetic acid and 2-(p-chlorophenyl)-propionic acid were not further metabolized by the bacterium. other chlorinated analogs of ddt were found to be recalcitrant to cometabolic degradation with diphenylethane. | 1978 | 637537 |
| bacterial and spontaneous dehalogenation of organic compounds. | only 3 of more than 500 soil enrichments contained organisms able to use 1,9-dichlorononane as a sole carbon source. one isolate, a strain of pseudomonas, grew on the compound and released much of the halogen as chloride. resting cells dehalogenated 1,9-dichlorononane aerobically but not anaerobically. pseudomonas sp. grew on and resting cells dehalogenated 1,6-dichlorohexane, 1,5-dichloroheptane, 2-bromoheptanoate, and 1-chloro-, 1-bromo-, and 1-iodoheptane, but the bacterium cometabolized but ... | 1978 | 637547 |
| a modified sedimentation method for counting platelets in blood. | a sedimentation method for counting human blood platelets is proposed which uses a fluid of sp.gr. i.057 at an osmolarity of 320 milliosmols. the fluid is a mixture of lymphoprep and isoton ii. after centrifugation at about 200 platelets are counted on an electronic particle counter. | 1978 | 638087 |
| increased extracellular production of a cholinesterase-solubilising factor by cytophaga ncmb 1314 during magnesium starvation. | a cytophaga sp. with the property of liberating a cholinesterase which is found in body muscle of plaice was studied. the liberation was caused by a factor of which more than 90% was found outside the bacterial cell and might possibly be associated within the slime material surrounding the bacteria. magnesium limitation during growth of cytophaga sp. in batch cultures resulted in an about 10-fold increase in extracellular factor activity. the increase could be immediately stopped by addition of ... | 1978 | 638892 |
| an insect retina without microvilli in the male scale insect, eriococcus sp. (eriococcidae, homoptera). | male scale insects of an undescribed australian species of eriococcus have no compound eyes but show an extraordinary arrangement of three pairs of ocelli: one pair is positioned dorsolaterally where most insects have their compound eyes. another pair looks ventrally and is placed where insects usually have their mouthparts, and there are two small lateral ocelli. corneal nipples and a spherical lens with an estimated f-number only 0.55 are structural adaptations considered to increase the overa ... | 1978 | 639083 |
| trypanosoma (herpetosoma) lemmi sp. n. from the norwegian lemming, lemmus lemmus (l.). | 1978 | 640525 | |
| identification and synthesis of acyl-phosphatidylglycerol in acinetobacter sp. ho1-n. | a minor phospholipid from acinetobacter sp. ho1-n was identified as acyl-phosphatidylglycerol. acyl-phosphatidylglycerol synthesis by outer-membrane preparations appeared to be a result of phospholipase a activity. | 1978 | 641017 |
| physiological basis of the selective advantage of a spirillum sp. in a carbon-limited environment. | a spirillum sp. and a pseudomonas sp. possessing crossing substrate saturation curves for l-lactate were isolated from fresh water by chemostat enrichment. their ks and mumax values for l-lactate were: spirillum sp., 23 micrometer and 0.35 h-1, respectively; pseudomonas sp., 91 micrometer and 0.64 h-1, respectively. under l-lactate limitation, pseudomonas sp. outgrew spirillum s. at dilution rates (d) above 0.29 h-1, but the converse occurred at lower d values. the advantage of spirillum sp. inc ... | 1978 | 641523 |
| spirocamallanus cricotus sp. n. and s. halitrophus sp. n. (nematoda: camallanidea) from fishes in the northern gulf of mexico. | spirocamallanus cricotus sp. n. (= s. pereirai, in part) and s. halitrophus sp. n. are described from marine fishes of the northern gulf of mexico. spirocamallanus cricotus has a ledge anterior to the basal ring in the buccal capsule, similar spicules with a ratio of 1:1.4 to 2.1, 3 pre- and 5 postcloacal papillae, and 8 rectal glands in the female; s. halitrophus lacks the ledge and possesses dissimilar spicules with a ratio of 1:1.3 to 1.8, 3 pre- and 6 postcloacal papillae, and 4 rectal gland ... | 1978 | 641665 |
| progamotaenia ruficola sp. n. (cestoda: anoplocephalidae) from the red kangaroo, macropus rufus (marsupialia). | progamotaenia ruficola sp. n. is described from the red kangaroo (macropus rufus) from new south wales, australia. it is distinguished from other similar species having paired, nondiverticulate uteri in each prolottis: progamotaenia festiva (rudolphi 1819), p. diaphana (zschokke 1907), and p. macropodis beveridge 1976, by the extremely broad, straight-edged velum, the lack of an external seminal vesicle, the cirrus armature, the number of testes, the lack of vaginal atrophy following inseminatio ... | 1978 | 641671 |
| gastrointestinal parasitism of iowa coyotes in relation to age. | taenia sp., physaloptera sp., ancylostoma caninum, toxascaris leonina, and/or trichuris vulpis were recovered from gastrointestinal tracts of 141 and 144 (97.9%) coyotes ranging from 1/2 to 8 1/2 years of age. ancylostoma caninum exhibited a significant decline in both prevalence and mean number per coyote with increasing age of the host. taenia sp. appeared with consistently high prevalence in all age classes. physaloptera sp. and t. leonina showed general reductions in prevalence in all age cl ... | 1978 | 641673 |
| eimeria waiganiensis sp. n. from the green-winged ground dove (chalcophaps indica linnaeus) and the magnificent ground pigeon (otidiphaps nobilis gould) in papua new guinea. | eimeria waiganiensis sp. n. is described from green-winged ground dove (chalcophaps indica linnaeus) and the magnificent ground pigeon (otidiphaps nobilis gould) in papua new guinea. oocysts broadly ovoid, 22-25 by 19-23 micron (24 by 22 micron); l/w ratio 1.08-1.2 (1.1). oocyst surface smooth, wall light brown, 1.5 micron thick, 1-layered, the inner surface appearing pitted. micropyle (4-6 micron) and 2 to 4 polar granules present; oocyst residuum absent. sporocysts ovoid, 9.0-10.5 by 6.0-7.5 m ... | 1978 | 641674 |
| plasmodium pessoai sp. n. from two costa rican snakes. | a unique malaria parasite species was found in 1/1 spilotes pullatus (colubridae) and 1/70 lachesis muta (crotalidae) from the moist atlantic lowland forests of eastern costa rica. it is distinguished by small, sausage-shaped gametocytes (x 10.4 by 4.6 mu), growing schizonts that often contain a noticeable digestive vacuole with the contents partially visible, and striking spherical or bouquet-shaped segmenters whose precise merozoite numbers are difficult to discern (about 22-32) because of an ... | 1978 | 641676 |
| [morphology and development of the cysticercoids of paricterotaenia porosa (cestoda: dilepididae)]. | studies of the development of paricterotaenia porosa in its intermediate host chironomus sp. were carried out. at 20 degrees c the development of the larva is completed in 24 days. the primary cavity is formed in 9 days, the separation of the cercomere anlage--in 11 to 12 days and the invagination of the larva--in 19 days. the larval development of p. porosa is characterized by its passing in the cavity of the external cyst, by the complete separation of anlages of the body of the larva and cerc ... | 2007 | 643306 |
| [acroloxus lacustris (fam. ancylidae) as a new intermediate trematode host in the ussr]. | 585 specimens of the mollusk acroloxus lacustris were parasitologically investigated in the divichin bay of the caspian sea. 3 species of cercarians (echinostoma sp., echinoparyphium recurvatum, asymphylodora sp.), 2 species of parthenites (echinostomatidae gen. sp. redia i, echinostomatidae gen. sp. redia ii) and 4 species of metacercarians (metacercaria gen. sp. i, metacercaria gen. sp. ii. metacercaria gen. sp. iii, tetracotyle sp.) were found in the specimens examined. a. lacustris is first ... | 1978 | 643308 |
| [revision of the mites of the genus miyatrombicula (trombiculidae) in the fauna of the ussr]. | 6 species of the genus miyatrombicula are recorded from the fauna of the ussr: m. esoensis, m. reptilica, m. muris, m. balcanica, m. caucasica, m. ramitensis sp. n. characteristic of the genus, redescription of known and description of new species are given. larvae of the mites parasitize in general small mammals. in addition, some of these species were found in west europe, japan and north america. | 2007 | 643312 |
| [new species of mosquito, aedes (stegomyia) sibiricus sp. n. (culicidae)]. | the description of female, male and 4th stage larva of a new species of mosquito, aedes (stegomyia) sibiricus, from siberia and far east of the ussr is given. this species belonging to the albopictus subgroup of the scutellaris group of species was formerly confused with a. (s.) galloisi yam. the geographical distribution of a. sibiricus is related to the south of the east taiga and okhotsk districts of the euro-siberian province of the circumboreal subregion of the palearctic, while a. galloisi ... | 2007 | 643314 |
| [a new phoretic species, simulium melanocephalum sp. n. (simuliidae: diptera) from kivu, zaire, with taxonomic notes on the s. diceros-group (author's transl)]. | a new species of the simulium diceros-group (subgenus phoretomyia) is described, the larvae and pupae of which are living in phoretic association with mayfly nymphs. the systematic position of the group, and the taxonomy of its species are discussed. | 1978 | 644659 |
| taxonomy of leucochloridium sp. (digenea) infecting succinea pfeifferi rossmässler, 1835. | the anatomical and morphological variability of sporocysts and metacercariae of leucochloridium sp. recovered from natural infected succinea pfeifferi rossmässler collected in the agdenes area. norway (63 degrees 35'n, 9 degrees 45'e), was studied by light microscopy. the results are compared with five species from the nearctic and palearctic with known adult stage (l. variae mcintosh, 1932; l. fuscostriatum robinson, 1947; l. perturbatum pojmanska, 1969; l. subtilis pojmanska, 1969; l. fuscum r ... | 1978 | 645181 |
| biocidal properties of anti-icing additives for aircraft fuels. | the biocidal and biostatic activities of seven glycol monoalkyl ether compounds were evaluated as part of an effort to find an improved anti-icing additive for jet aircraft fuel. typical fuel contaminants, cladosporium resinae, gliomastix sp., candida sp., pseudomonas aeruginosa, and a mixed culture containing sulfate-reducing bacteria were used as assay organisms. studies were carried out over 3 to 4 months in two-phase systems containing jet fuel and aqueous media. diethylene glycol monomethyl ... | 1978 | 646356 |
| effects of low concentrations of bisulfite-sulfite and nitrite on microorganisms. | a wide range of microorganisms was tested to determine their sensitivity to low concentrations of bisulfite-sulfite and nitrite, solubility products of so2 and no2, respectively. photosynthesis by blue-green algae (cyanobacteria) was more strongly inhibited by 0.1 mm bisulfite-sulfite and 1 mm nitrite at ph 6.0 than photosynthesis by eucaryotic algae and respiration of bacteria, fungi, and protozoa. at ph 7.7, blue-green algae were still more sensitive to bisulfite-sulfite and nitrite than eucar ... | 1978 | 646357 |
| interactions between the diatom thallasiosira pseudonanna and an associated pseudomonad in a mariculture system. | the marine diatom thallasiosira pseudonanna (3h) and several bacteria associated with it were isolated from batch cultures at the university of delaware mariculture facility. the interaction between the algae and each of the bacteria was investigated. one of the isolates, t827/2b (pseudomonas sp.), was incapable of surviving in f/2 culture medium unless the algae were present. when the algae and t827/2b were grown together in the f/2 medium, the bacterial growth was stimulated and the algal grow ... | 1978 | 646360 |
| effect of light intensity of vesicle formation in chlorobium. | 1. chlorobium limicola forma sp. thiosulfatophilum was cultivated at 22 and 22000 lux. 2. the content of bchl d on a protein basis in the low light intensity cultures was about twice that of the high light intensity cultures; 3. after growth at 22 lux the red bchl d peak was at c. 743 nm, while at the higher intensity this peak was at c. 732 nm; 4. electron microscopy of thin sections of chlorobium revealed that vesicle size was greater at the low light intensity than at the high. 5. this was co ... | 1978 | 646582 |
| [determination of the molecular weight and radius of gyration of lactobacillus 30a histidine decarboxylase and micrococcus sp. n. histidine decarboxylase]. | 1978 | 647048 | |
| inducing effect of plant cells on nitrogenase activity by spirillum and rhizobium in vitro. | eleven different plant cell tissue cultures of both legume and non-legume origin have been grown in direct association, and in separate but close proximal association with both spirillum lipoferum and rhizobium sp. 32h1. basic similarities were found in the nutritional requirement for the induction of nitrogenase activity (c2h2) in both organisms. in the absence of plant cell cultures both organisms need to be provided with a pentose sugar and a tricarboxylic acid to induce high levels of nitrog ... | 1978 | 647472 |
| transformation of azotobacter vinelandii strains unable to fix nitrogen with rhizobium spp. dna. | the phenotypes of azotobacter vinelandii atcc 12837 strains defective in nitrogen fixation (nif-) were characterized by intrageneric transformation with known nif- strains of a. vinelandii op. these former mutant strains were used as recipients for intergeneric transformation by deoxyribonucleic acid (dna) prepared from rhizobium spp. to determine if the rhizobia would transform the azotobacter nif- phenotypes to nif+. the frequency of nif+ transformants using rhizobium dna was always less than ... | 1978 | 647476 |
| biosynthesis of chloramphenicol in streptomyces sp. 3022a. properties of an aminotransferase accepting p-aminophenylalanine as a substrate. | in the presence of alpha-ketoglutarate, cell-free extracts of streptomyces species 3022a catalysed transfer of the amino group from p-aminophenylalanine, yielding an unstable product similar to that obtained by the action of d- and l-amino acid oxidases on the amino acid. the enzyme, purified 16-fold from cell homogenates by chromatography on ion-exchange celluloses, hydroxyapatite, and cross-linked dextran gel, has a molecular weight of 90 000 and a broad ph optimum at 8.0. it is active with l- ... | 1978 | 647477 |
| rhabdometra alpinensis n.sp.(cestoda: paruterinida: dilepididea) from southern white-tailed ptarmigan (lagopus leucurus altipetens osgood) in colorado, u.s.a., with a key to the species of rhabdometra cholodkowsky, 1906. | 1978 | 647529 | |
| teichomycins, new antibiotics from actinoplanes teichomyceticus nov. sp. ii. extraction and chemical characterization. | the teichomycins are new antibiotics produced by actinoplanes teichomyceticus nov. sp. teichomycin a1 is a phosphorus-containing antibiotic, active in vitro and in vivo against gram-positive bacteria, and active only in vitro against gram-negative bacteria. teichomycin a2 is a chlorine-containing antibiotic, active in vitro and in vivo against gram-positive bacteria. isolation, purification and physical and chemical properties of the two antibiotics are reported. teichomycin a1 is a member of th ... | 1978 | 649512 |
| isolation and partial characterization of two different subunits from the molybdenum-iron protein of azotobacter vinelandii nitrogenase. | the molybdenum-iron protein of azotobacter vinelandii nitrogenase was separated into two subunits of equal concentration by ion exchange chromatography on sulfopropyl (sp) sephadex at ph 5.4 in 7 m urea. better than 90% yield of each subunit was obtained on a preparative scale if the reduced carboxymethylated molybdenum-iron protein was incubated at 45 degrees c for 45 min prior to chromatography. without the heating step low yields of the subunits were obtained. although the amino acid composit ... | 1978 | 649581 |
| survey for toxoplasmosis in wild and domestic animals from norway and sweden. | fifty-nine of 1250 (4.7%) wild and domestic animals from norway and sweden had positive dye-test titers (greater than or equal to 1:8) for antibody against toxoplasma gondii. a dye-test titer of 1:8 (30-40 i.u.) or higher was detected in 3 of 732 small rodents (0.4%), 21 of 87 domestic cats (24%), 9 of 29 red foxes (vulpes vulpes) (31%), 2 of 2 domesticated arctic foxes (alopex lagopus), 12 of 99 red deer (cervus elaphus) (12%), 5 of 8 roe deer (capreolus capreolus) (63%) and in 7 of 34 wild rab ... | 1978 | 650778 |
| naturally occurring hepatozoonosis in a coyote. | schizonts of hepatozoon sp. were found in the myocardium of an adult cyote (canis latrans) collected from the aransas national wildlife refuge, austwell, texas. this constitutes the first time hepatozoonosis has been recorded in canidae in the western hemisphere. | 1978 | 650792 |
| production and evaluation of secretin antibodies. | antibodies were readily produced in three rabbits to unconjugated pure natural porcine secretin, and in two rabbits to synthetic porcine secretin conjugated to bsa. the final dilutions of the antisera to bind 50% of 1 fmol 125-i-labeled secretin prepared by the chloramine-t method and purified on a sephadex g-15 and a sp sephadex c-25 column varied between 1:14,500 and 1:245,000. the effective equilibrium constants (keff) according to scatchard varied between 0.8 x 10(11) and 3.4 x 10(11), the a ... | 1978 | 654847 |
| astigmatic mites from nests of birds of prey in u.s.a. iii. sapracarus tuberculatus g.n., sp.n. (acari, astigmata, saproglyphidae). | 1978 | 655036 | |
| bacterial dehalogenation of halogenated alkanes and fatty acids. | sewage samples dehalogenated 1,9-dichloronane, 1-chloroheptane, and 6-bromohexanoate, but an organism able to use 1,9-dichlorononane as the sole carbon source could not be isolated from these samples. resting cells of pseudomonas sp. grown on n-undecane, but not cells grown on glycerol, dehalogenated 1,9-dichlorononane in the presence of chloramphenicol. resting cells of five other n-undecane-utilizing bacteria cleaved the halogen from dichlorononane and 6-bromohexanoate, and four dehalogenated ... | 1978 | 655703 |
| [primary amebic meningoencephalomyelitis. report of a case]. | a case of primary amebic meningoencephalomyelitis due to naegleria sp observed in a 14 years old boy is reported. symptoms due to myelitis at the dorsal level assumed ascending character during the first days of disease. manifestations due to encephalic involvemente were discrete. cerebrospinal fluid changes were marked by pleocytosis, and the eosinophil cells participation in the cytomorphological profile was persitently high. amphotericin-b was used intravenously (25 mgm/day) until 1,500 mgm o ... | 1978 | 655899 |
| sheep red blood cell membrane structure: an immunological probe. | pronase digested sheep red blood cell stromata were employed as probe in order to investigate erythrocyte membrane arrangement by immunological way. antiserum from rabbits immunized with erythrocyte ghost pronase residue assayed for its hemolytic activity against intact sheep red cells, showed an high titer, in a good agreement with the presence in the same residue of externally located membrane antigens. immunoelectrophoretic analysis was performed between the solubilized residue and precipitin ... | 1978 | 656197 |
| [comparison of the catalytic properties of alpha- and beta-forms of thrombin]. | 18-25-fold purified alpha-thrombin, having high esterase activity and coagulating ability of 2500 nih u per 1 mg of protein, was isolated using chromatography of commercial thrombin through sp-sephadex c-50. limited proteolysis of alpha-thrombin on the column with immobilized trypsin resulted in the appearance of beta-thrombin with alpha-thrombin-like esterase activity and tracing coagulating activity (2-5 nih u per 1 mg of protein). molecular weight analysis of alpha- and beta-thrombin forms su ... | 1978 | 656498 |
| [actinomycetes antagonistic to fungi and not affecting rhizobium meliloti]. | the effects of 481 actinomycetes isolated from agricultural soils supporting good growth of alfalfa or clover on two efficient strains of rhizobium meliloti a2 and s14 were studied. strain a2 was inhibited by 28% of the isolates and strain s14 was inhibited by 31% of them. no significant difference was found between the resistance of both actinomycete strains. the effects of the 288 isolates not affecting r. meliloti on six fungi were also studied. the most sensitive fungus was stemphylium sarci ... | 1978 | 657008 |
| bilharziasis in a nanday conure. | natural infection with a schistosome in a pet nanday conure caused weight loss, blood-flecked diarrhea, and death. hemorrhagicoulcerative colitis and cloacitis were found at necropsy. the schistosome was not identified but was believed to be gigantobilharzia sp. | 1978 | 659304 |
| teichomycins, new antibiotics from actinoplanes teichomyceticus nov. sp. i. description of the producer strain, fermentation studies and biological properties. | a soil isolate of actinoplanes that produces the chemically unrelated new antibiotics teichomycins a1 and a2 has been proposed as a new species named actinoplanes teichomyceticus nov. sp. (atcc 31121). studies of medium and fermentation conditions indicated that the highest antibiotic titers, ca 900 u/ml, are obtained in a medium containing 1% (w/v) glucose, 1% cotton seed meal, 1% malt extract, and 0.4% yeast extract. both teichomycin a1 and teichomycin a2 are highly active against gram-positiv ... | 1978 | 659325 |
| 1,3-diphenethylurea from streptomyces sp. no. am-2498. | 1978 | 659334 | |
| trematodes of marine fishes from south australia. i. paraneocreadium australiense gen. et sp. n. (lepocreadiidae). | paraneocreadium australiense gen. et sp. n. (lepocreadiidae) is described from psilocranium nigricans (richardson) from the aldinga reef of south australia. paraneocreadium is most similar to neocreadium howell 1966 from geniagnus in new zealand and neolepocreadium thomas 1960 from trachinotus in ghana. it differs from both genera in being ovoid rather than elongate, in having a coiled rather than saccate internal seminal vesicle, and having no viteline follicles between the gonads. it differs f ... | 1978 | 660376 |
| sancassania sp. (acarina: acaridae) superimposed upon scabs of psoroptes ovis (acarina: psoroptidae) on a hereford heifer in new mexico. | 1978 | 660392 |