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Showing 9985 to 9996 of 217674 entries
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Membrane potential across low-water-content charged membranes: Effect of ion pairing.

The journal of physical chemistry. B

Matsumoto H, Yamamoto R, Tanioka A.
PMID: 16852774
J Phys Chem B. 2005 Jul 28;109(29):14130-6. doi: 10.1021/jp051585s.

In the present paper, we systematically examined the ion-pairing effect in low-water-content charged membranes. Cation- and anion-exchange membranes with various water contents and homogeneous fixed-charge distribution were prepared by radical copolymerization and then characterized by membrane potential measurements. The...

Plant leaf and stem proteins. I. Extraction and electrophoretic separation of the basic, water-soluble fraction.

Plant physiology

McCown BH, Beck GE, Hall TC.
PMID: 16656809
Plant Physiol. 1968 Apr;43(4):578-82. doi: 10.1104/pp.43.4.578.

Simplified but highly reproducible extraction and electrophoretic procedures have been developed for plant stem and leaf proteins using recent chemical and technical advances. The method is applied to the separation of the basic, water-soluble proteins found in stem and...

Electropotential in excised pea epicotyls.

Plant physiology

Macklon AE, Higinbotham N.
PMID: 16656858
Plant Physiol. 1968 Jun;43(6):888-92. doi: 10.1104/pp.43.6.888.

In contrast to intact etiolated pea seedling tissue (Pisum sativum L.), excised segments immersed in a complete nutrient solution show marked increases in ion content, largely of K(+) and NO(3) (-), over a 72-hour period. During this time there...

Effects of salt secretion on psychrometric determinations of water potential of cotton leaves.

Plant physiology

Klepper B, Barrs HD.
PMID: 16656895
Plant Physiol. 1968 Jul;43(7):1138-40. doi: 10.1104/pp.43.7.1138.

Thermocouple psychrometers gave lower estimates of water potential of cotton leaves than did a pressure chamber. This difference was considerable for turgid leaves, but progressively decreased for leaves with lower water potentials and fell to zero at water potentials...

X-ray absorption fine structure combined with x-ray fluorescence spectrometry. Part 15. Monitoring of vanadium site transformations on titania and in mesoporous titania by selective detection of the vanadium K alpha1 fluorescence.

The journal of physical chemistry. B

Izumi Y, Kiyotaki F, Yagi N, Vlaicu AM, Nisawa A, Fukushima S, Yoshitake H, Iwasawa Y.
PMID: 16852885
J Phys Chem B. 2005 Aug 11;109(31):14884-91. doi: 10.1021/jp052038+.

X-ray absorption fine structure combined with X-ray fluorescence spectrometry was applied to various V+TiO2 hybrid samples. Emitted V K alpha1 fluorescence from the sample was selectively counted by using a high-energy-resolution (0.4 eV) spectrometer equipped with a Ge(331) crystal....

Preparation of a vast CoFe2O4 magnetic monolayer by Langmuir-Blodgett technique.

The journal of physical chemistry. B

Lee DK, Kim YH, Kang YS, Stroeve P.
PMID: 16852892
J Phys Chem B. 2005 Aug 11;109(31):14939-44. doi: 10.1021/jp052363x.

The preparation of ultrathin films of CoFe2O4 nanocrystallites is reported. TEM images of them showed 2-dimensional assembly of particles, demonstrating the uniformity of these nanocrystallites. The formation of a Langmuir monolayer of the surface coated CoFe2O4 nanocrystallites with oleate...

Acid rain on Acid soil: a new perspective.

Science (New York, N.Y.)

Krug EC, Frink CR.
PMID: 17830936
Science. 1983 Aug 05;221(4610):520-5. doi: 10.1126/science.221.4610.520.

Acid rain is widely believed to be responsible for acidifying soil and water in areas of North America and northern Europe. However, factors commonly considered to make landscapes susceptible to acidification by acid rain are the same factors long...

Water Resources.

Science (New York, N.Y.)

Hoak RD.
PMID: 17831126
Science. 1961 Dec 08;134(3493):1926-8. doi: 10.1126/science.134.3493.1926.

No abstract available.

Computer simulation investigation of the water-benzene interface in a broad range of thermodynamic States from ambient to supercritical conditions.

The journal of physical chemistry. B

Keresztúri A, Jedlovszky P.
PMID: 16853137
J Phys Chem B. 2005 Sep 08;109(35):16782-93. doi: 10.1021/jp051343s.

The dependence of the properties of the water-benzene system on the thermodynamic conditions in a broad range of temperatures and pressures has been investigated by computer simulation methods. For this purpose, Monte Carlo simulations have been performed at 23...

Cavitation during Impact of Liquid Water on Water: Geochemical Implications.

Science (New York, N.Y.)

Anbar M.
PMID: 17831346
Science. 1968 Sep 27;161(3848):1343-4. doi: 10.1126/science.161.3848.1343.

No abstract available.

IAA Oxidase Inhibitors from Normal and Mutant Maize Plants.

Plant physiology

Gelinas D, Postlethwait SN.
PMID: 16657240
Plant Physiol. 1969 Nov;44(11):1553-9. doi: 10.1104/pp.44.11.1553.

Extracts of maize (Zea mays L.) plants contain substances which, in vitro, inhibit an indoleacetic acid (IAA) oxidase enzyme from maize. The extracts can be freed of inhibitors by dialysis or by passage through columns of polyvinylpyrrolidone powder. Inhibitor-free...

Role of the accompanying anion in the effect of calcium salts on potassium uptake by excised barley roots.

Plant physiology

Tadano T, Baker JH, Drake M.
PMID: 16657251
Plant Physiol. 1969 Nov;44(11):1639-44. doi: 10.1104/pp.44.11.1639.

The effect of addition of Ca salts on accumulation of K from 5 mN KCl or K(2)SO(4) solutions was found to depend on whether Ca was added as Cl or SO(4) salt. Chloride as well as K uptake was...

Showing 9985 to 9996 of 217674 entries