The effect of dietary fibre on85Sr and47Ca absorption in infant rats

Summary The retention of bone-seeking radioisotopes⁸⁵Sr and⁴⁷Ca was about 20% lower in the femur of 6-day-old infant rats artificially fed on milk, milk supplemented with calcium and phosphorus, and milk supplemented with strontium when 6% cellulose type dietary fibre was added to the diet.Acknowledgments. This work was supported by a research grant from the Scientific Research Council of the Socialist Republic of Croatia. The authors wish to thank Mrs M. Buben, E. Herak, and K. Pribi for their technical assistance.     

Chromosomes and giemsa-bands of the Idaho spotted ground squirrel,Spermophilus brunneus (Howell)

-Spermophilus brunneus . , 13 18 ,S. brunneus S. townsendii mollis (2n=38) , , ; ;S. brunneus . S. brunneus , Spermophilus.

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Supported by National Science Foundation Grants No. GB32114X and No. GB 29131X, and the Sprague Foundation. We thankD. Pozin for technical assistance.     

Axillary 5α-androst-16-en-3-one in men and women: Relationships with olfactory acuity to odorous 16-androstenes

Summary Axillary 5-androst-16-en-3-one (5-androstenone) levels were found to be significantly higher in men than in women but do not vary between left and right axillae, are not related to age, handedness or degree of hirsutism (in women) nor to anosmia to this steroid. In men (but not in women), levels are related linearly to axillary cholesterol concentrations but not to squalene. Olfactory thresholds for 5-androstenone varied widely, the lowest recorded being 0.2 ppb, but there was no difference in thresholds between men and women. Women (70%) found the smell repellant but anosmia did not differ greatly between men and women (9–20%). Anosmia to the smell of 5-androst-16-en-3-ol was most marked in women (90%) rather than in men (45%). Axillary 5-androstenone values were generally consistent with the musky or strong smells of male axillary extracts, compared with the sweet smell of those from female subjects.Supported by the Herbert Dunhill Trust.     

The characteristic specificity of plasmocytoma lipids concerning their resistance to formdl-fractions with colloidal dextran

Zusammenfassung Papierelektrophoretische Lipiduntersuchungen von- und-Plasmacytom — Paraproteinseren nach Kolloidaldextranbelastung erfassen eine neue, in der Diagnostik des Plasmocytoms verwertbare Eigenschaft: die Paraproteinlipidkomponente (PL) vermag, entgegen den-Lipoproteinen, mit Dextran keine Assoziationsfraktion zu bilden.

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My thanks are due toJosipa Franjkovi for her technical assistance.     

The role of the pentose-phosphate pathway in adjustment of the heart to a high load and the development of myocardial hypertrophy

, , - - - . .     

Correlation between sensitivity to trypaflavine and DNA base composition in mutants ofBacterium paracoli 5099

Bacterium paracoli 5099 , , .     

Mass spectrometric determination of the amino acid sequence in cystine- and cysteine-containing peptides

, - , , S-- S- .     

Chromosomes and some issues of the evolution of the ground squirrel genusCitellus (Rodentia: Sciuridae)

Citellus (s. str.) relictus, C. dauricus C. pygmaeus (2=36, NF=72). . (Colobotis) erythrogenys . fulvus -. . (Urocitellus) undulatus (2n=32, NF=64) . columbianus. Citellus, , Citellus, . , .     

G-band patterns as chromosomal markers,and the interpretation of chromosomal evolution in wild sheep (Ovis)

- . Ovis musimon (2n=54) O. orientalis (2n=54) - - -O. canadensis mexicana (2n=54) O. musimon x O. canadensis ₁₂ - . ₂ 27 . - .

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Supported by National Science Foundation Grant no. GB 32114X and the Sprague Foundation. We thank Dr. T. C. Hsu for assistance in making the chromosome preparations and for advice and encouragement. The Trustees of the Rachelwood Wildlife Research Preserve generously allowed the biopsy of specimens of their custody. Mr.Arthur Popham kindly provided the specimens from Iran while Dr.R. M. Robinson obtained biopsies from the desert sheep.     

Contribution to the X-ray diffraction methods for precision determinations of polycrystal lattice parameters

. . : , . u-, .     

Responses of resistance and capacitance vessels at various frequency electrical stimulation of sympathetic nerves

Conclusion (1) The maximal reactions of cerebral resistance vessels arise at the stimulation frequency of 30 cps, the maximal reactions of capacitance vessels at the frequency of 10 cps. (2) Reactions of resistance vessels in the pulmonary lobe increase in the range of stimulation frequencies from 11–50 cps, maximal reactions of pulmonary capacitance vessels are observed at the frequency of 30–40 cps. (3) Reactions of resistance vessels situated below the abdominal aorta bifurcation increase progressively in the range of frequencies from 6–50 cps, the magnitude of capacitance vessel reaction reaching its maximum value at 20 cps.

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30 /, — 10 /. 50 /. 30–40 /, 20 /.

     

The stimulating action of gastrin pentapeptide and histamine on adenyl cyclase activity in rat stomach

, 3',5'-, in vitro . , , 3',5'- HCl .     

Studies on rII region of T2L phage

rII T2L , rII T4B. rII T2L rII T4B. T2L rII T4B.     

Mutual replaceability of amide and ester groups in biologically active peptides and depsipeptides

, .     

Neurogenic responses of resistance and capacitance vessels

- . , , , . , .     

Inhibition of EMC virus reproduction and prevention of cell death by amino acid analogues and puromycin

L- , .D, L--2- (, 50%). , , . , .     

Cellular antigens in myxo- and paramyxoviruses as revealed by immunodiffusion methods

, , . , .     

Suppression of antibody formation against sendai virus in the SV40 and adenovirus 16 infected hamsters

SV₄₀ 16. 9 . . .     

Mass spectrometric determination of the amino acid sequence in peptides: Desulfurization of sulfur-containing peptides

, N- 20 - .     

Interaction of polyene antibiotics and serum lipoproteins

-.