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2 edition of Growth and decay of phosphorescence in calcium sulphide by a photoelectric method found in the catalog.

Growth and decay of phosphorescence in calcium sulphide by a photoelectric method

Peter John Mulder

Growth and decay of phosphorescence in calcium sulphide by a photoelectric method

by Peter John Mulder

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  • 19 Currently reading

Published in Philadelphia .
Written in English

    Subjects:
  • Phosphorescence.,
  • Calcium sulphide.,
  • Photoelectric cells.

  • Edition Notes

    Statement[by] Peter John Mulder.
    Classifications
    LC ClassificationsQC478 .M8 1935
    The Physical Object
    Pagination1 p. l., p. 527-547.
    Number of Pages547
    ID Numbers
    Open LibraryOL6385976M
    LC Control Number39010697
    OCLC/WorldCa15130919

    Calcium, Phosphorus, and Vitamin D3 Imbalances Peter S. Sakas DVM, MS Niles Animal Hospital and Bird Medical Center N. Milwaukee Ave. Niles, IL () FAX () Calcium/Phosphorus Imbalances Diets that consist of seeds and grains, especially oily ones, are deficient in calcium, have a low. Of the plasma calcium, approximately 40 percent is bound to albumin; 15 percent is complexed with citrate, sulfate, or phosphate; and 45 percent exists as the physiologically important ionized (or free) calcium. As routinely measured in the laboratory, the plasma calcium concentration includes all of the calcium in the plasma (free and bound).

    Phosphine is also produced by the action of water on calcium phosphide, Ca3P2→ 2PH3+ 3Ca+++ 6OH-. Canisters of calcium phosphide are used as signals at sea. When pierced and thrown into the water, they make volumes of smoke, and cannot be extinguished. Phosphine is only slightly soluble in water, and is very poisonous. Overall, crystal growth and regulation is not well understood, but in the case of BSP-1, Ca 2+ binding is believed to anchor BSP-1 to hydroxyapatite and contribute to organized CaP i formation. , Osteocalcin (or bone Gla protein), by contrast, is a small 6 kDa, 49 aa residue polypeptide with unclear function. It is one of the many.

    Calcium phosphate is a family of materials and minerals containing calcium ions together with inorganic phosphate anions. Some so-called calcium phosphates contain oxide and hydroxide as well. They are white solids of nutritious value. Calcium phosphates are found in many living organisms, e.g., bone mineral and tooth enamel. In milk, it exists in a colloidal form in micelles bound to casein protein . Calcium and phosphorus are co-dependent in bone development and should be supplemented togther, suggests research in a recent journal. Dr Ralph Shapiro of Product Safety Labs in New Jersey, US and Dr Robert P. Heaney of Creighton University Medical Center (Omaha, NE) set out to quantify the effect of variation in calcium intake, with and without supplemental phosphorous, on growth and bone.


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Growth and decay of phosphorescence in calcium sulphide by a photoelectric method by Peter John Mulder Download PDF EPUB FB2

The work here reported con- sists in measuring the growth and especially the decay of phosphorescence of calcium sulphide, excited by light, by the use of a photoelectric cell and amplifier combination well suited to such measurements.

D~.SCRtVrION OF ~ by: 1. The interactions of ions with growing calcium phosphate interfaces were investigated. The effect of various background electrolytes such as NaCl, KCl, and KNO 3 on the growth rate of hydroxyapatite HAP was measured, using a constant solution composition method.

Parallel electrophoretic mobility measurements have also been made. Growth of calcium phosphate onto chemically-functionalized cottons 2. EXPERIMENTAL Sample preparation Cottonwipes(pharmaceuticaldegree,SentinelCottonBalls),isopropanol, methanol and sodium hydroxide (reagent grade, Baker) were used as received.

All inorganic chemicals used in this study were supplied by J.T. Baker. The deionized water andCited by: 5. Pictures of Pseudomonas species grown on NB agar supplemented with calcium and % (w/v) BB over the course of two days. Pictures are Cited by: 3. Sulfide-based luminescent materials have attracted a lot of attention for a wide range of photo- cathodo- and electroluminescent applications.

Upon doping with Ce3+ and Eu2+, the luminescence can be varied over the entire visible region by appropriately choosing the composition of the sulfide host.

Main application areas are flat panel displays based on thin film electroluminescence, field Cited by:   The chemical barrier to root development existing in the subsoils of acid soils is a subject of increasing interest. In order to better understand the factors involved in the amelioration of subsoil acidity, the effects of calcium sulphate, phosphogypsum and calcium carbonate on the properties of the solid and liquid phases of subsoil samples and on the growth and nutrient uptake by maize (Zea Cited by: CALCIUM HYDROGEN PHOSPHATE Prepared at the 19th JECFA (), published in NMRS 55B () and in FNP 52 ().

Metals and arsenic specifications revised at the 63rd JECFA (). A group MTDI of 70 mg/kg bw, as phosphorus from all food File Size: KB. Supplemental calcium sulphate added to nutrient solution containing salt significantly improved growth and physiological variables affected by salt stress (e.g.

plant growth, fruit yield, and. We shall discuss the processes for luminescent energy storage, which is an absolute prerequesite for phosphorescence, the physical means of at- taining storage, that is, how trapping is accomplished, and lastly, how infra-red light stimulates the release of this energy in phosphorescence and in dissipation (quenching).

Introduction. Phosphorus (P) as an essential nutrient plays a great role in bone mineralization for poultry (Berndt and Kumar, ).The P nutrition for optimal growth and bone development in poultry has been well demonstrated (Almquist, ).Recently, the non-phytate P (NPP) requirements than the recommendation of National Research Council () for broilers have been well revaluated to Author: Y.W.

Zhu, C.Y. Wang, J. Wen, W.C. Wang, L. Yang. Full text of "Molecular Fluorescence: Principles and Applications" See other formats. Common examples of Phosphorescence would be “glow-in-the-dark” paints and toys which have Phosphorescent pigments like Zinc Sulfide and Calcium Sulfide present in them.

FIREFLY REACTION (LUCIFERIN)[8] Firefly Luciferin or D-Luciferin (C11H8N2O3S2) [4S)(6-hydroxy-1,3-benzothiazolyl)-4,5- dihydrothiazolecarboxylic acid] is a light.

All four calcium-phosphate-fluorescein powders exhibited sustained drug release over 21 days. The calcium phosphate sample with the highest specific surface area and the smallest, spherical particle size was the most effective in both drug loading and release, consequently having the highest antibacterial by: Experimenting with Phosphorescence Materials that glow in the dark for an extended period after all sources of excitation are removed are said to be phosphorescent.

For years, phosphorescent paint has been used to make the numerals and hands of mechanical alarm clocks visible in the dark. Phosphorescent tapes and. EFFECT OF THE CALCIUM-PHOSPHORUS RELATIONSHIP OF THE RATION ON GROWTH AND BONE FORMATION IN THE PIG ' By R.

BETHKE, associate {nutrition), B. EDGINGTON, associate in animal pathology, and C. KICK, assistant in nutrition, Department of Animal Indus- try, Ohio Agricultural Experiment Station. calcium phosphate more crystalline and destroyed and volatilized the nitrate and ammonium traces trapped in the solid.

Characterization Specific surface of calcium phosphate was obtained by nitrogen adsorption through the BET method with a surface area analyzer Micromeritics Gemini The solid sample was heated for 2 h at ºC. Decay curves of Eu 2+ emission for CLPEu 2+,xMn 2+ (solid line) monitored at nm and dash line indicates fitted curves.

The inset shows the correlation between ηT and x under nm. SOME GENERAL EFFECTS OF PHOSPHORUS DEFICIENCY ON GROWTH AND DEVELOPMENT BY D. ATKINSON* Department of Botany, University of Newcastle upon Tyne (Received 16 August ) SUMMARY A number of general effects of phosphorus deficiency on plant growth are described.

The experi- ments employed a wide range of species from different ecological by: Growth factor and cytokines. Table 1. Regulation of Calcium and Skeletal Metabolism. Generic method of transcellular calcium transport in the GI tract and kidney.

In all body cells, the free intracellular calcium concentration must be kept to minuscule levels to prevent the. The nucleation of calcium phosphates, the main inorganic component of bone and tooth tissues, is thought to proceed by aggregation of prenucleation clusters recently identified as calcium triphosphate complexes.

We have performed ab initio molecular dynamics simulations to elucidate their structures and stabilities in aqueous solution. We find the calcium to be seven-coordinated by two water Cited by:. Korean researchers identified the initial growth process of calcium phosphate, a key component of bones, using 'TOP-MEIS (Time-of-Flight Medium .Distinct developmental changes in the distribution of calcium, phosphorus and sulphur during fetal growth-plate development C C van Donkelaar, 1 X J A Janssen, 2 and A M de Jong 2 1 Department of Biomedical Engineering, Eindhoven University of Technology, The NetherlandsCited by: 9.Data from the study suggest g P kg-1 diet as optimum requirement for the growth of Heterobranchus bidorsalis.

@ JASEM Phosphorus (P) is an essential and critical nutrient for animal production. Calcium and P make up 70% of the total mineral elements in the body and are essential for the formation of bone, energy transfer.