On the latitude and variation of latitude at the U. S. Naval Observatory, Washington, D. C.

Harkness, William; Hill, George A.

doi:10.1086/102704

Cited by 4 publications

(9 citation statements)

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“…Clearly, this is whare intrinsic recombination effects are negligible [see Eqs. (8) and (9)], where thers are no incoherent precipitates competing for defects [see Eq. (13)], and where solute atom trapping in the matrix is relatively small.…”

Section: The Sink Strengths Of Precipitate Particles Of Arbitrary Shapementioning

confidence: 99%

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The effect of precipitate-matrix interface sinks on the growth of voids in the matrix

Brailsford¹,

Mansur²

1981

Journal of Nuclear Materials

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A qualitative discussion of the differing roles played by coherent and incoherent precipitates as point defect sinks is presented. Rate theory is used to obtain semiquantitative estimates of the growth of cavities in the matrix when either type of precipitate is present. Methods for deriving the sink strengths of precipitates of arbitrary shape are developed. In three materials where available microstructural information allows an analysis, precipitates are found to cause only a small relative suppression of cavity growth via the mechanisms here considered.

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Section: The Sink Strengths Of Precipitate Particles Of Arbitrary Shapementioning

confidence: 99%

“…Two extreme models of precipitate effects on void swelling are treated in this paper, i:sing an approach based upon rate theory [8][9][10][11]. In the idealized case of a coherent precipitate, the interface is typified as an internal surface where constrained recombination of defect and anti-defect occurs.…”

Section: Introductionmentioning

confidence: 99%

The effect of precipitate-matrix interface sinks on the growth of voids in the matrix

Brailsford¹,

Mansur²

1981

Journal of Nuclear Materials

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“…Tako sudionici koji tjele- S druge strane, osobe s izraženim uvjerenjem u važnost roditeljske uključenosti u odnos s djetetom nešto su sklonije indukciji (r=-0,092**), a manje sklone ignoriranju djetetova plača (r=-0,134**). Utvrđene interkorelacije govore u prilog postojanju širih kategorija međusobno podupirućih uvjerenja, što odgovara pojmu roditeljskih etnoteorija (Harkness i Super, 1996. ), odnosno kulturno oblikovanih sustava uvjerenja.…”

Section: Zastupljenost Uvjerenja O Ispravnim Roditeljskim Postupcima unclassified

Uvjerenja Javnosti O Ispravnim Roditeljskim Postupcima Prema Djeci Najmlađe Dobi

Pećnik

Radočaj

Tokić

2011

Drustvena istrazivanja

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Cilj istraživanja bio je, na reprezentativnom uzorku, ispitati uvjerenja odraslih građana Hrvatske o poželjnom odnosu roditelja prema djeci mlađoj od 3 godine te provjeriti mogu li se ona predviđati na temelju niza sociodemografskih varijabli. Rezultati su pokazali da je, uz najzastupljenije uvjerenje o važnosti roditeljske uključenosti, visoko zastupljeno i uvjerenje o važnosti poslušnosti i podređenosti djeteta odraslima. Manje su zastupljena uvjerenja o opravdanosti neodgovaranja na djetetov plač, uvjerenje o opravdanosti tjelesnoga kažnjavanja te uvjerenje o nepotrebnosti davanja objašnjenja zahtjeva i zabrana djetetu (indukcije). Spomenuta uvjerenja mogu se predviđati na temelju sociodemografskih obilježja sudionika, kao što su, prije svega, stupanj obrazovanja, a zatim spol, dob i prihodi te broj članova kućanstva. Ovaj skup sociodemografskih prediktora najslabije predviđa uvjerenje o važnosti roditeljske uključenosti, a najbolje uvjerenje o nepotrebnosti indukcije. Kod slabije obrazovanih i starijih sudionika, s manjim prihodima, izraženija su uvjerenja o odnosu prema djetetu koja ne odgovaraju suvremenim znanstvenim spoznajama o primjerenoj roditeljskoj potpori ostvarenju djetetova razvojnog potencijala.Ključne riječi: uvjerenja o roditeljskim postupcima, roditeljstvo, sociodemografska obilježja, tjelesno kažnjavanje, rani razvoj djece Ninoslava Pećnik, Pravni fakultet Sveučilišta u Zagrebu, Studijski centar socijalnog rada,

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“…O n the other hand, light-microscope studies of mouse hair follicles utilizing conventional autoradiography (2,3,16) revealed that radioactive cystine is taken up directly by the keratogenous zone and does not pass up into it from the bulb. BSlanger observed that labeled methionine is also taken up by the hair follicles of the rat, since methionine is the most efficient substitute for cystine and can be converted to cystine in the body (1).…”

Section: Introductionmentioning

confidence: 99%

“…The filamentous component having a lower cystine content first appears in the mid-bulb, and, at the level of the prekeratinization region and above, gamma keratin which has a higher cystine content is added to the interfilamentous space of alpha keratin (4,22). Therefore, the localization and the amount of activity of labeled cystine in the autoradiographic studies (2,3,16,29,30) appear to coincide with the distribution of alpha and g a m m a keratin in the hair follicle revealed by electron microscope studies (4,22,27).…”

Section: Introductionmentioning

confidence: 99%

A Study of the Ultrastructural Localization of Hair Keratin Synthesis Utilizing Electron Microscopic Autoradiography in a Magnetic Field

Nakai

1964

The Journal of Cell Biology

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The sites of the incorporation of labeled cystine into keratinizing structures were studied in electron microscopic autoradiographs. The tracer used was cystine labeled with S 3~ emitting long-range ionizing particles. During exposure for 1 to 2 months, according to our method of electron microscopic autoradiography, emulsion-coated specimens were exposed to a static magnetic field which appeared to result in a marked increase in the number of reacted silver grains. In young Swiss mice receiving intraperitoneal injections at 1, 3, and 6 hours before biopsy, conventional autoradiography demonstrated that S 35-cystine was intensely localized in the keratogenous zone of anagen hair follicles, and that the radioactivity there increased in intensity progressively with time while the radioactivity in the hair bulb always remained very low. Our observations with electron microscopic autoradiography in a magnetic field appeared to indicate that at 3 and 6 hours after injection the S35-cystine was directly and specifically incorporated into tonofibrils in the hair cortex and into amorphous keratin granules of the hair cuticle layer, possibly without any particular concentration of this substance in the other cellular components. There seemed to be an appreciable concentration of cystine in tonofibrils of the cuticle of the inner root sheath. However, trichohyalin granules in the hair medulla and inner root sheath failed to show any evidence of cystine concentration. The improved sensitivity of the electron microscopic autoradiography with S35-cystine appeared to be partly due to the application of a static magnetic field. However, the reason for this could not be explained theoretically.

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On the latitude and variation of latitude at the U. S. Naval Observatory, Washington, D. C.

Cited by 4 publications

References 0 publications

The effect of precipitate-matrix interface sinks on the growth of voids in the matrix

The effect of precipitate-matrix interface sinks on the growth of voids in the matrix

Uvjerenja Javnosti O Ispravnim Roditeljskim Postupcima Prema Djeci Najmlađe Dobi

A Study of the Ultrastructural Localization of Hair Keratin Synthesis Utilizing Electron Microscopic Autoradiography in a Magnetic Field

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