Results 241 to 250 of about 887,626 (298)

Task-shifting in eye health: Assessing the accuracy and feasibility of community worker-led vision screening. MEDiS report # 2. [PDF]

Indian J Ophthalmol
Rogye A, Singh AK, Nicholson M, Krishnan R, Das T, MEDiS Working Group , Murthy S, Das T, Krishnan R, Nicholson M, Rogye A, Sharma T, Setia M, Singh AK, Gawade S, Kumari A, Murudkar J.   +16 more
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Molecular foundations of collagen triple helical assembly: the central role of prolyl-4-hydroxylation. [PDF]

Biochem J
Joshi A, Mondal B, Basak T.
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Correction to "Adherence to Periodic Dilated Eye Examinations and Its Determinants Among Nepalese Patients With Diagnosed Diabetes: A Single-Center Hospital-Based Analysis Using Health Belief Model". [PDF]

Biomed Res Int
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Thrombus formation in cancer patients using autopsy materials: an immunohistochemical analysis. [PDF]

Int J Clin Exp Pathol
Yamada Y, Kurata A, Takahashi T, Ogihara Y, Takaesu H, Takagi O, Fujita K, Ohno SI, Saito A, Kuroda M.   +9 more
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Relating Functional Groups to the Periodic Table

Journal of Chemical Education, 2009
An introduction to organic chemistry functional groups and their ionic variants is presented. Functional groups are ordered by the position of their specific (hetero) atom in the periodic table. Lewis structures are compared with their corresponding condensed formulas.
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Peroxides of the Group Two Elements of the Periodic Table

1966
All elements of the second group, with the exception of beryllium [1], form peroxide compounds. Peroxides of calcium, strontium, and barium belong to the M2+O2 2- type; while peroxides of magnesium, zinc, and cadmium, of general formula MO2 • xH2O, probably belong to the HO—M—OOH type where the covalent bond between the hydroperoxyl group and the metal
Il’ya Ivanovich Vol’nov, A. W. Petrocelli   +1 more
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The group VIII platinum-group metals and the Periodic Table

Foundations of Chemistry, 2009
The six platinum group metals (pgms: ruthenium, rhodium, palladium, osmium, iridium and platinum) posed a number of problems for 19th-century chemists, including Mendeleev, for their Periodic classification. This account discusses the discovery of the pgms, the determination of their atomic weights and their classification.
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Peroxides of the Group One Metals of the Periodic Table

1966
All alkali metals form peroxides. The peroxides of all the alkali metals, with the exception of lithium, can be synthesized by direct oxidation of the metal with oxygen at atmospheric pressure. The reactivities of sodium, potassium, rubidium, and cesium result from the fact that these metals have large atomic radii and low ionization potentials ...
Il’ya Ivanovich Vol’nov, A. W. Petrocelli   +1 more
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Group theoretical aspects of the periodic table of the elements

Journal of Molecular Structure: THEOCHEM, 1989
Abstract Several attempts to obtain the overall (approximate) symmetry of the periodic system of the elements are discussed. The symmetries are analysed in terms of the prediction of magic numbers in Meyer-Mendeleev's table; this is shown to be a still elusive goal. Other group-theoretical aspects are, however, better understood, such as the roles of
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