Limpar
1.578.983 resultados

Acesso aberto

Tipo do recurso

Tipo de base de dados

Ano de criação

Produção nacional

Revisado por pares

Áreas

Idioma

Editores

Imagens Acesso aberto

Wellcome Library, London. Series: Archives & Manuscripts. Photographer: Lafayette Ltd.

0000 - Gale Group | NCCO Photography

Artigo Revisado por pares

M. H. Ranney,

... Using Univariate and Bivariate LinkageEmma E.M. Knowles, Ph.D. D. Reese McKay, Ph.D. Jack W. Kent, Jr.Ph.D. Emma Sprooten, Ph.D. Melanie A. Carless, Ph.D. Joanne E. Curran, Ph.D. Marcio A.A. de Almeida, Ph.D. Thomas D. Dyer, Ph.D. Harald H.H. Göring, Ph.D. Rene L. Olvera, M.D. Ravi Duggirala, Ph.D. Peter T. Fox, M.D. Laura Almasy, ...

Tópico(s): Child and Adolescent Psychosocial and Emotional Development

1857 - American Psychiatric Association | American Journal of Psychiatry

Monograph Acesso aberto

Frederick Bedell, Albert Cushing Crehore,

Includes Index Provenance: Signed on Endpaper by Ernest Mar. Blehl, March 1894.; The Burndy Library Collection at the Huntington Library. Book.

1893 - Gale Group | NCCO-STM 1of2

Artigo Acesso aberto Revisado por pares

Jacques Loeb,

... outside aqueous solution show that the difference in pH of the two solutions allows us to calculate ... sides of the membrane. 3. This difference in pH inside minus pH outside solution seems to be the consequence of ... increasing hydrogen ion concentration, reaches a maximum at pH 3.5, and then falls again with further fall of the pH. It is shown that the P.D. of ... chloride solution shows the same variation with the pH (except that it reaches its maximum at pH of about 3.9) and that the P.D. can be calculated from the difference of pH inside minus pH outside on the basis of ...

Tópico(s): Electrostatics and Colloid Interactions

1921 - Rockefeller University Press | The Journal of General Physiology

Petitions Acesso aberto

... notice of a petition.] [Sheffield,] Lender, [18?] s.ph. R107337.19.35

0000 - Gale Group | SAS Part 1

Artigo

Max Bodenstein,

... 323 (1920). danach eine ausgiebige Diskussion. 3 Ostwald, Ph.Ch. 7, 229 (1890); Ph.Ch. 9, 378 (1892). 1 Hoitsema, Ph.Ch. 17, 1 (1895). 2 Sieverts, Ph.Ch. 77, 591 (1911). 3 Tafel, Ph.Ch. 34, 199 (1901); Ph.Ch. 50, 641 (1905); siche auch G. N. Lewis, Ph.Ch. 56, 193 (1926). 1 Möller, Ph.Ch. 65, 226 (1909) und Ann. d. Physik ( ... Faktor 1/2 b größer als 0,057gefunden [Ph.Ch. 50, 641 (1905)]. Auch G. N. Lewis hat das gleiche beobachtet [ Ph.Ch. 56, 193 (1906). 1 Mac Innes, Am. ...

Tópico(s): Electrocatalysts for Energy Conversion

1922 - Wiley | Zeitschrift für Elektrochemie und angewandte physikalische Chemie

Outros Acesso aberto

10 September 1840. Circular (in French) for Ph. Vondermaelen of Brussells Sending a Prospectus for Epistemonomie, Published by the Etablissement Geographique. Letter.

0000 - Gale Group | NCCO BritishPolitics

Artigo Acesso aberto Revisado por pares

Jacques Loeb,

... point of the protein. 2. Measurements of the pH of the (inside) protein solution and of the ... show that when equilibrium is established the value pH inside minus pH outside is positive in the case of protein- ... a Donnan equilibrium, since in that case the pH should be lower outside than inside in the ... the electrical charge is zero the value of pH inside minus pH outside becomes also zero. 4. It is shown ... the charge is zero. 5. Measurements of the pH inside the powdered particles and of the pH in the outside watery solution show that when ...

Tópico(s): Chemical and Physical Studies

1922 - Rockefeller University Press | The Journal of General Physiology

Monograph Acesso aberto

F. Ph. Stögermayr,

Added Series t.-p Burndy Library Copy Bound in 1 V.; Provenance: Obach Library, Siemens Engineering Society, Stamp on Title Pape.; Provenance: Printed ...

1899 - Gale Group | NCCO-STM 1of2

Artigo

Fritz Paneth, Eugen Rabinowitsch,

... Chem. Ges. 55, 775 [1922]. 4 F. Paneth, Ph. Ch. 100, 367 [1922]. 5 F. Paneth u. ... Reaktionsmechanismus zur Erklärung herangezogen werden. 14 J. Tafel, Ph. Ch. 34, 187, 191 [1900]; J. Tafel u. K. Naumann, Ph. Ch. 50, 713, 716 [1905]. 15 Als Elektrodenmaterial ... Soc. 38, 792 [1916]. 18 vergl. J. Tafel, Ph. Ch. 34, 187, 190 [1900], sowie H. J. ... von E. Rabinowitsch, Berlin 1924. 22 F. Haber, Ph. Ch. 32, 255 [1900]. 23 J. Tafel, Ph. Ch. 34, 187 [1900]. 24 F. Haber, Ph. Ch. 32, 255 [1900]; Z. El. Ch. 4, 506 [1897]; F. Haber u. R. Ruß, Ph. Ch. 47, 257 [1904]; R. Ruß, Ph. Ch. ...

Tópico(s): Polyoxometalates: Synthesis and Applications

1924 - Wiley | Berichte der Deutschen Chemischen Gesellschaft. Abteilung B, Abhandlungen

Monograph Acesso aberto

F. Ph. Stögermayr,

Added Series t.-p. Burndy Library Copy Bound in 1 V.; Provenance: Obach Library, Siemens Engineering Society, Stamp on Title Pape.; Provenance: Printed ...

1899 - Gale Group | NCCO-STM 1of2

Artigo Revisado por pares

Luigi Gorini,

... et. B. cereus, cultivées en aérobiose et à pH compris entre 7 et 8, est d'autant ... font à température plus basse, ici 26°. Le pH optimum de ces protéinases est compris entre 7 ... base de méthyl- et d'éthylmorpholine, utilisable entre pH et pH 8.5, et ne contenant ni ion métallique ... subtilis, and B. cereus), grown aerobically and at pH 7–8, is the more, the lower the ... work was carried out at 26°. The optimun pH of these proteinases is between 7 and 8. ... been tried out. It can be used between PH 6.7 and 8.5 and includes neither ...

Tópico(s): Enzyme Structure and Function

1950 - Elsevier BV | Biochimica et Biophysica Acta

Primary Document Acesso aberto

Bourne, S., Phoenix, Alexander,

"Printed for private distribution." "Sermon preached in Chicopee, Mass., by Rev. Alexander Phoenix": p. [17]-32. Includes bibliographical references. Book.

0000 - Gale Group | Sabin

Artigo

James Reid Campbell, W. G. Tubb,

... no demonstrable effect. In all these instances the pH, concentrations of reagents, etc., must be considered. In oxalate and thiourea maximum stability occurred at pH 2.5 to 3.0 and in glutathione at pH 3.6 to 4.2. The latter substance itself was also most stable at pH 3 to 4. At the optimum pH a concentration of 40 mM of oxalate gave ... minimum solubility of oxalate in water occurred at pH 2.4 to 3.0, which coincides with the pH at which the maximum protective effect occurs and ... ultraviolet light by ascorbic acid was altered by pH, the maximum shifting from 244 to 268 mμ ...

Tópico(s): Vitamin C and Antioxidants Research

1950 - National Research Council Canada | Canadian Journal of Research/Canadian journal of research

Imagens Acesso aberto

Wellcome Library, London. Series: Archives & Manuscripts.

0000 - Gale Group | NCCO Photography

Artigo Acesso aberto

Roger G. Bates, G.D. Pinching, Ernest R. Smith,

The practical scale of pH is defined in terms of the electromotive force of the galvanic Pt; H2 (g), solution | satd. KC1 | standard, H2 (g); ... is a calibration with a standard of known pH. Appropriate corrections must be applied if the glass ... However, there is no simple means of correcting pH measurements for the potential differences at the junctions ... solutions to render uncertain the interpretation of measured pH in these regions, in spite of the fact ... of hydrogen-ion activity are available at intermediate pH values. The purpose of this study was twofold: ( ...

Tópico(s): Electrochemical Analysis and Applications

1950 - US government | Journal of research of the National Bureau of Standards

Imagens Acesso aberto

Wellcome Library, London. Series: Archives & Manuscripts.

0000 - Gale Group | NCCO Photography

Artigo Revisado por pares

A. Clark Griffin, Sanford Bloom, Lew Cunningham, J. D. Teresi, J. Murray Luck,

... cancerous tissues in the rat A. Clark Griffin Ph.D., A. Clark Griffin Ph.D. Department of Chemistry, Stanford University, CaliforniaSearch for ... for more papers by this authorJoseph D. Teresi Ph.D., Joseph D. Teresi Ph.D. Department of Chemistry, Stanford University, CaliforniaSearch for more papers by this authorJ. Murray Luck Ph.D., J. Murray Luck Ph.D. Department of Chemistry, Stanford University, CaliforniaSearch for more papers by this author A. Clark Griffin Ph.D., A. Clark Griffin Ph.D. Department of ...

Tópico(s): Drug Transport and Resistance Mechanisms

1950 - Wiley | Cancer

Artigo Revisado por pares

Benjamin Goldberg, Louis G. Ortega, Abraham Goldin, Glenn E. Ullyot, Emanuel B. Schoenbach,

... and effects on mouse sarcoma 180 Benjamin Goldberg Ph.D., Benjamin Goldberg Ph.D. Department of Preventive Medicine, The Johns Hopkins ... PennsylvaniaSearch for more papers by this authorAbraham Goldin Ph.D., Abraham Goldin Ph.D. Department of Preventive Medicine, The Johns Hopkins ... for more papers by this authorGlenn E. Ullyot Ph.D., Glenn E. Ullyot Ph.D. Department of Preventive Medicine, The Johns Hopkins ... for more papers by this author Benjamin Goldberg Ph.D., Benjamin Goldberg Ph.D. Department of Preventive ...

Tópico(s): Synthesis and Biological Evaluation

1950 - Wiley | Cancer