Showing papers by "Cairo University published in 1969"
TL;DR: A diminution was observed in milk proteins and milk fat which was statistically significant in all cases, compared to a control group, and the milk inorganic constituents were significantly decreased.
56 citations
55 citations
TL;DR: A simple, accurate method for processing a hollow obturator is described, similar to the “two-step” processing technique used in complete dentures.
Abstract: Summary A simple, accurate method for processing a hollow obturator is described. The method is similar to the “two-step” processing technique used in complete dentures. The author wishes to thank Professor W. Krogh-Poulsen, Royal Dental College, Copenhagen for discussions and help in the preparation of this article.
52 citations
TL;DR: During the whole life‐span the predator female fed on an average of 969 eggs or 438 immatures or 346 adults, of these more than 93% were consumed during the adult stage, Males lived for shorter time and consumed fewer prey than females.
Abstract: Phytoseius plumifer could develop and reproduce when fed on the different stages of the red spider mite T. cinnabarinus. The female immature stages lasted for an average of 4.8, 3.8 and 4.5 days respectively when fed on eggs, immatures and adults of the prey at an average temperature of 29.5 ± l°C. The average number of deposited eggs per female was significantly greater when it fed on immatures and adults (about 45 eggs) than when it fed on prey eggs (about 29 eggs). During the whole life-span the predator female fed on an average of 969 eggs or 438 immatures or 346 adults, of these more than 93% were consumed during the adult stage. Males lived for shorter time and consumed fewer prey than females.
The predator could develop and reproduce successfully on date-palm pollen but at a slower rate. On this diet the immature stages lasted 10.5 days and female laid an average of 16.6 eggs. On hollyhock and cotton pollen, or sweet potato leaves, larvae failed to develop to adults.
ZUSAMMENFASSUNG
DIE LEBENSWEISE DER RAUBMILBE PHYTOSEIUS PLUMIFER UND DIE WIRKUNG DER ERNAHRUNG AUF IHRE BIOLOGIE (ACARINA: PHYTOSEIIDAE)
Phytoseius plumifer konnte sich entwickeln und fortpflanzen, wenn er mit verschiedenen Stadien der Roten Spinnmilbe, Tetranychus cinnabarinus, gefuttert wurde. Die Entwicklungs-Stadien des Weibchens dauerten bei einer Mitteltemperatur von 29,5 ± 1° je nach Futterung mit Eiern, Jungtieren oder Adulten der Beute durchschnittlich 4,8, 3,8 oder 4,5 Tage. Die durchschnittliche Anzahl von einem Weibchen abgelegter Eier war signifikant groser, wenn sie mit Larven und Erwachsenen gefuttert wurden, (etwa 45 Eier), als wenn sie mit Eiern der Beutetiere ernahrt wurden (etwa 29 Eier). Wahrend der Gesamtlebensdauer verzehrte ein Raubmilben-Weibchen im Durchschnitt 969 Eier oder 438 unreife oder 346 erwachsene Beutetiere, von denen mehr als 93% wahrend des Imaginalstadiums verbraucht wurden. Mannchen lebten kurzere Zeit und vertilgten weniger Beute als die Weibchen.
Der Rauber konnte sich an Dattelpalmen-Pollen entwickeln und erfolgreich fortpflanzen, jedoch mit einer geringeren Rate. Bei dieser Ernahrung dauerte die Entwicklung bis zur Imago 10,5 Tage und ein Weibchen legte im Durchschnitt 16,6 Eier. Mit Stechpalmen- und Baumwoll-Pollen oder an Suskartoffel-Blattern entwickelten sich die Larven nicht bis zur Imago.
48 citations
45 citations
TL;DR: In this article, D'Appoloia, D'Apolonia, Elio D'APPOLONIA, and RICHARD F. BRISSETTE discussed the effect of over-buried pressure on the relative density of SANDs.
Abstract: WAYS TO MODIFY THE TERZAGHI AND PECK METHOD FOR ESTIMATING THE SETTLEMENT OF SPREAD FOOTINGS FOUNDED ON SANDS ARE EXAMINED. THE AUTHORS INCLUDE THE EVALUATION OF THE RELATIVE DENSITY OF SAND FOUNDATIONS BY THE STANDARD SPLIT-BARREL PENETRATION TEST UTILIZING THE EFFECT OF OVERBURDEN PRESSURES. THE WRITERS' PREFER TO REGARD THIS IN TERMS OF INTERPRETATION OF THE RELATIVE DENSITY OF SANDS UNDER VARIOUS OVERBURDEN PRESSURES FROM PENETRATION TEST DATA, RATHER THAN A CORRECTION AS EXPRESSED BY THE AUTHORS AND DISCUSSERS. EXPERIENCE ON BUREAU OF RECLAMATION PROJECTS DURING THE LAST 15 YEARS HAVE PROVIDED CONFIDENCE IN THE APPLICABILITY OF THE PROCEDURE. PENETRATION TEST RESULTS MUST BE LOOKED AT FROM THE STANDPOINT OF AVERAGE VALUES AND RANGE OF VALUES. THE WRITER FEELS THAT A CORRELATION WHICH IS CLOSE TO AVERAGE TRENDS OF PENETRATION RESISTANCE AND RELATIVE DENSITY IS MOST USEFUL. CHANGES OF OVERBURDEN PRESSURE WITH RESPECT TO DEPTH IS A NECESSARY CONSIDERATION. HOLTZ AND GIBBS CONCLUDE THAT A GENERAL CORRELATION SHOULD BE AN AVERAGE REPRESENTATION FOR A BROAD VARIETY OF USES. PECK AND BAZARAA DISCUSS THE PENETRATION TEST METHODS. THEY DISCUSS THE CORRECTION OF N VALUES FOR THE EFFECT OF OVERBURDEN PRESSURES USED BY THE AUTHORS. THEY CRITICIZE THE HOLTZ AND GIBBS CORRECTION AS BEING UNREALISTIC AND INTRODUCING AN INHERRENT INCONSISTENCY INTO THE PROCEDURES. A METHOD OF IMPROVING THE GIBBS AND HOLTZ CORRECTION IS INTRODUCED. THE WRITER SUGGESTS THAT THE N VALUES SHOULD BE CORRECTED FOR THE EFFECT OF OVERBURDEN PRESSURE, PREFERABLY BY BAZARAA'S MODIFICATION OF THE GIBBS AND HOLTZ PROCEDURES. THE CORRECTED N VALUES SHOULD THAN BE INSERTED INTO THE TERZAGHI-PECK CHART TO DETERMINE THE SETTLEMENT BY THE STANDARD SPLIT-BARREL PENETRATION TEST. BOLOGNESI DISCUSSES SETTLEMENTS PREDICTIONS FROM PLATE LOAD TESTS AND THE INFLUENCE OF THE WATER TABLE ON THE SETTLEMENT OF FOUNDA- TIONS. A FIGURE IS PRESENTED WHICH SHOWS ALL THE POSSIBILITIES AND LIMITATIONS OF THE PROPOSAL THAT, ON FIRST LOADING, THE TANGENT MODULUS OF DEFORMATION OF SANDS IS A FUNCTION OF THE STRESS CONDITIONS. THE ANALYSIS PRESENTED SHOWS THAT THE MOST IMPORTANT FACTOR TO BE TAKEN INTO CONSIDERATION WHILE EXTRAPOLATING SETTLEMENTS FROM A STANDARD SIZE PLATE TO THE SETTLEMENT OF A PROTOTYPE FOOTING IS THE PRECONSOLIDATION PRESSURE, OR PRECONSOLIDATION-LIKE EFFECTS. REFERENCES: SETTLEMENT OF SPREAD FOOTINGS ON SAND, DAVID J. D'APPOLONIA, ELIO D'APPOLONIA, AND RICHARD F. BRISSETTE, ASCE PROC. PAPER 5959, MAY 1968.
31 citations
29 citations
TL;DR: Thirty-three strains of different species of rhizobia were seeded into medium 79 agar and five fungicides, TMTD, Rhizoctole, Phygon, Ceresan and Orthocide 75 were placed on the seeded agar, finding that these fungicides while toxic to certain strains, was not so for others.
Abstract: Thirty-three strains of different species of rhizobia were seeded into medium 79 agar. Discs impregnated with 3, 0.3, 0.03 and 0.003%, corresponding to 10, 1, 1/10 and 1/100 the recommended rate of application, of fungicides TMTD, Rhizoctole, Phygon, Ceresan and Orthocide 75 were placed on the seeded agar. After 120 hrs, zones of inhibition were measured. The 3, 0.3 and 0.03% concentrations of the five fungicides were inhibitory to most rhizobia tested in different degrees. The 0.003% level of these fungicides while toxic to certain strains, was not so for others.
29 citations
TL;DR: Kinship of Smenkhkare and Tutankhamen affirmed by Serological Micromethod: Kinship-Tunkhamen-SmenkhKare relationship demonstrated Serologically.
Abstract: Kinship of Smenkhkare and Tutankhamen affirmed by Serological Micromethod: Kinship of Smenkhkare and Tutankhamen demonstrated Serologically
25 citations
TL;DR: Es wurde eine hohe östrogenaktivität festgestellt, welche durchβ-Sitosterol hervorgerufen wird, welches in dieser Pflanze in relativ hoher Konzentration vorhanden ist.
Abstract: 21 Tage alten weiblichen Mausen wurde wahrend dreier Tage durch s.c. Injektionen ein Extrakt von Sabalfruchten (Serenoa repens Small, fruher Sabal serrulatum Schult) verabreicht. Es wurde eine hohe ostrogenaktivitat festgestellt, welche durchβ-Sitosterol hervorgerufen wird, welches in dieser Pflanze in relativ hoher Konzentration vorhanden ist.
24 citations
TL;DR: The present report supports the view that homozygosity for an autosomal mutation could be one of the causes of the clinical features of the Turner syndrome.
TL;DR: In this article, the quasi-peak readings of radio-noise meters have been generally accepted as an indication of the degree of nuisance to radio reception from ac and dc coronas.
Abstract: The quasi-peak readings of radio-noise meters have been generally accepted as an indication of the degree of nuisance to radio reception from ac and dc coronas. Simplified theoretical analyses were previously made to correlate the readings of radio- noise meters to some corona pulse characteristics.
TL;DR: On a molar basis, phenylbutazone was shown to have a greater effect on glucose absorption than acetylsalicylic acid, and an attempt to explain some of the systemic effects of these drugs is discussed.
Abstract: The effect of acetylsalicylic acid and phenylbutazone on the intestinal absorption of glucose in vitro has been studied. Incubation of the rat everted intestine in a modified Krebs bicarbonate solution containing either acetylsalicylic acid or phenylbutazone resulted in an inhibition of active glucose transport, as well as an increase in the utilization and/or storage of the sugar. On a molar basis, phenylbutazone was shown to have a greater effect on glucose absorption than acetylsalicylic acid. The results are discussed with an attempt to explain some of the systemic effects of these drugs.
TL;DR: In this article, the role of K2Cr2O7 in acid corrosion of Cu has been investigated both from loss in weight measurements, and from cathodic polarization data, and relations representing the effect of both acid concentration and temperature on the corrosion rate have been discussed.
TL;DR: The results confirm the previous findings in women, that gestagens exert an adverse effect on the quantity and quality of milk when they are orally or parenterally administered during lactation.
TL;DR: In this paper, the elastic scattering of deuterons and 3He particles from different nuclei was analyzed using Inopin-Ericson theory, which satisfactorily approximates the exact scattering amplitude at intermediate and large scattering angles and takes account of the smoothness of the surface thickness and the effect of Coulomb and real nuclear phase shifts.
Abstract: Diffraction-model analysis are reported for the elastic scattering of deuterons and3He particles from different nuclei Inopin-Ericson theory is used, which satisfactorily approximates the exact scattering amplitude at intermediate and large scattering angles and takes account of the smoothness of the surface thickness and the effect of Coulomb and real nuclear phase shifts The agreement between the theory and experiment is good in most of the cases The spin-orbit effects are discussed and shown to be small for the cases considered in this paper
TL;DR: Repeated administration of courses of different antischistosomal drugs to infected population groups in endemic areas (especially school-age children) is advocated as an important and practical means of controlling schistosomiasis in rural areas; this should be supplemented by other long-term measures, whenever they become available.
Abstract: Repeated administration of courses of different antischistosomal drugs to infected population groups in endemic areas (especially school-age children) is advocated as an important and practical means of controlling schistosomiasis in rural areas; this should be supplemented by other long-term measures, whenever they become available. The variability of the response of individuals with schistosomiasis to specific therapy, whether given in single doses or on a long-term basis, has attracted the attention of many workers in this field. Apart from congenital genetic resistance in some experimental animals to schistosomicidals, the response to these drugs varies according to several parameters, e.g., age, sex, nutritional status, rate of excretion and metabolism, original worm load and strain, schedules used in administration of the drugs, and clinicopathological state of the disease. Jordan (1966) found that the cure rate varied inversely with the intensity of infection. Slow courses of antimonials were found effective in curing patients with schistosomiasis with minimal toxicity, especially if the courses were prolonged and the doses were fractionated (Ata & Mousa, 1961; Ata & El-Raziky, 1965). Schistosoma1 infection is known to resist treatment in cases with certain pathological reactions, namely, intestinal polyposis and chronic cystitis with ulcerations. Standen (1953) proved the hepatic worm shift and found that the paralyzed worms are attacked by thrombophlebitic host-tissue reaction, resulting in permanent capture of the worms in the portal venules; otherwise they migrate back to the mesenteric veins. Further work was done by Khayyal (1965), defining the shift, and back migration, of the schistosomal worms after administration of each dose of the drug. El-Raziky (1964) found that if the first dose were large enough, especially in hyperinfected animals, massive migration of worms could cause the sudden death of most of the experimental animals. The frequent introduction of new antischistosomal drugs with different structural formulas, mode of action, and toxicity, raised several scientific and practical problems, among which were drug prophylaxis, drug resistance, and the possibility of synergistic action of certain schistosomicidals. Such therapeutic problems, as related t o schistosomal infection seen in clinical practice in endemic areas, are
TL;DR: The susceptibility of the larvae to any of the bacterial components as well as to the crude preparation decreases with their devlopment, and in the three investigated larval instars the crude preparations was slightly more effective than spores or crystals.
Abstract: Sporen und Kristalle vonB. thuringiensis wurden aus einem Handelspraparat durch alkalische Extraktion und differentiale Zentrifugation getrennt. Ihre Wirkung auf frisch gehautete Larven des 3ten, 4ten und 5ten Stadiums wurde untersucht und mit der vom Rohpraparat unter gleidien Bedingungen verglichen. 5–7 Konzentrationen wurden bei jedem Versuch verwendet und die LC50 Werte wurden in jedem Fall von den Konzentration/Sterblichkeit Kurven aligeleitet.
TL;DR: In this paper, the lower bound to the ground state energy of a system of N alpha particles interacting via a potential determined by alpha-alpha scattering experiments is compared with the energies of nuclei with 2 N protons and 2 N neutrons.
TL;DR: The syndrome, sometimes termed a disease, has a diversity of components and confusing nomenclature and was regarded as a combined ectodermal and mesodermal maldevelopment.
Abstract: The syndrome, sometimes termed a disease, has a diversity of components and confusing nomenclature. The etiology is yet unknown. It has been suggested1 that it is an irregular dominant disease of inheritance; however, the complete syndrome has never been reported in more than one member of the same family. Wohlwill and Yakovlev 2 regarded the syndrome as a congenital defect of the vasomotor innervation of the malformed blood vessels that wi l l in turn proliferate and dilate. L a r mande, 3 noticing the obesity reported to accompany some cases, considered that a hypothalamic endocrinal influence is essential in the genesis of such anomaly. Kalischer, 4 Yakovlev and Guthrie, 5 and Krabbe 6 are among others who regarded the syndrome as a combined ectodermal and mesodermal maldevelopment.
TL;DR: The frequency of crossing-over in the two short regions on opposite arms, adjacent to the centromere of the mating-type chromosome of Neurospora crassa is controlled, independently in each arm, by at least two genes with equal and additive effect.
Abstract: The frequency of crossing-over in the two short regions on opposite arms, adjacent to the centromere of the mating-type chromosome ofNeurospora crassa is controlled, independently in each arm, by at least two genes with equal and additive effect. These genes segregate on inbreeding and cause great variability in both the frequency of recombination and the frequency of second-division segregation of loci situated within these regions. Recombination values between loci situated beyond these sensitive regions is not affected; the relative increase or decrease in their centromere distances may be attributed to change in the recombination frequency about the centromere only.
TL;DR: Hempa was an effective chemosterilant for adult Anophcles pharoensis Theobald when applied to the larval breeding medium and tepa induced complete sterility of adults at concentrations of 20–30 ppm.
Abstract: Tepa was an effective chemosterilant for adult Anophcles pharoensis Theobald when applied to the larval breeding medium. It induced complete sterility of adults at concentrations of 20–30 ppm. At 10 ppm it induced 96% sterility. Hempa was ineffective even at concentrations of 80–100 ppm. When the adult diet was treated, tepa induced complete sterility at 0.001% concentration but was toxic at concentrations between 0.05 and 0.5%. Hempa applied to the adult diet gave complete sterility at concentrations between 0.5 and 0.005%; no oviposition occurred when a 1% concentration was applied.
TL;DR: Thorough clinical examination and blood pressure estimations were conducted monthly at each follow-up visit, and serum levels of sodium and potassium were estimated by flame photometry before and six to twelve months after receiving the pills.
TL;DR: One kind of plaster and one kind of dental stone were subjected to a series of experiments in order to evaluate the effect of soaking before mixing on the physical properties of the set gypsum.
Abstract: One kind of plaster and one kind of dental stone were subjected to a series of experiments in order to evaluate the effect of soaking before mixing on the physical properties of the set gypsum. Highest accuracy was seen with no soaking, and highest strength was achieved with one-minute soaking.
TL;DR: Internal and external follicle diameters of both primary and secondary follicles of Texel x Ossimi and Merino x Barki ewes were greater, at birth, than those in either respective parent breed; the density of primary follicles at birth was less in the cross-breds than in the parental breeds, for both crosses.
Abstract: SUMMARY Internal and external follicle diameters of both primary and secondary follicles of Texel x Ossimi and Merino x Barki ewes were greater, at birth, than those in either respective parent breed; the density of primary follicles at birth was less in the cross-breds than in the parental breeds, for both crosses. There was a greater increase of follicle diameter with age in the Egyptian breeds, and mean follicle diameters of the crossbreds were intermediate between those of parent breeds at ages of 3–6 months and above. Grading up Ossimi sheep with the Caucasian Merino resulted in progressive decrease of mean internal follicle diameter. The F2, with more merino blood, had a greater frequency of the smallest diameter follicles than had the F1.
TL;DR: In this paper, the effect of the conductivity of the underlying earth is taken into account, and the results show that for variations in the inducing field with periods up to 10 s, the ordinary plane skin effect formula can be applied, and for variations with periods from 1-24h (including those of the Sq field) the current intensity is almost the same at all depths in the ocean.
Abstract: Summary
The variation with depth of the currents induced in the oceans is considered in reference to a model Earth completely covered by an ocean of uniform depth. The effect of the conductivity of the underlying earth is taken into account. The results show that for variations in the inducing field with periods up to 10 s, the ordinary plane skin effect formula can be applied, and that for variations with periods from 1–24h (including those of the Sq field) the current intensity is almost the same at all depths in the ocean.