The Protozoa, by Gary N. Calkins.

Calkins, Gary N.

doi:10.5962/bhl.title.31408

Cited by 2 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…I lay stress on the case of the Angios perms because researches recently repeated with the help of the latest methods failed to obtain different results." 11 Should this statement receive confirmation by future investigation it would mark the flowering plants as the group of organisms in which specialization has gone farther than in any other so far known toward making chromatin the sole gnu-tic intermediary between male parent and offspring.…”

Section: The Chromosomes Of Germ-cells In Fertilizationmentioning

confidence: 98%

“…Further, the phenienon establishes firmly, as I pointed out in li)01, the iew that the role of cell-division in development is primaily a process of localization. 11 Lillie presents his still broader interpretation in an exingly interesting section headed "Properties of the hole ( Principle of I'm'ty). "…”

Section: 275mentioning

confidence: 99%

“…Sumatrensis) has none. 11 The well known fact may also be recalled that scent glands are often distinctive of the sexes.…”

Section: Distinguishable By Manmentioning

confidence: 99%

“…Such developmental processes are, if I mistake not, clearly indicative of some sort of organization." 12 And approaching the problem from a slightly different angle, he says: "May we not go further, and say that an organism is an organism from the egg onward, quite independently of the number of cells present? In that case, continuity of organization would be the essential thing, while division into cell-territories might be a matter of quite secondary importance.…”

Section: (A) As Tested By Embryonic Developmentmentioning

confidence: 99%

“…The division is finally completed by the separation of the remainder of the nucleus and the re-formation of the daughter-nuclei, B9B while the chromosomes disintegrate into granules, which again form the large chromatin reservoirs, characteristic of Noctiluca." 12 The matters of chief interest for us in this account are the extra-nuclear position of the division center; its large size, making the observation of it almost as practicable as observation of the nucleus itself; the sharp distinction, indicated by the difference in staining, between the material of the division center and the nuclear contents, particularly the chromatic part of the contents ; the unmistakably independent and leading part played by the center in division, the split chromosomes, for example, being separated "through the agency of the mantle-fibres," these latter a part of the sphere; and finally the strong direct evidence that the activities of the center pertain to the substance of the center itself and are not caused entirely by a "force" or "influence" of the centriole.…”

Section: (H) the Clmging Organs Of Sporozoamentioning

confidence: 99%

See 4 more Smart Citations

The unity of the organism; or, The organismal conception of life, by William Emerson Ritter ...

Ritter¹

1919

View full text Add to dashboard Cite

Remarks on the relation of germ-cells togerm-layers and to the organism generally, 72. The relation of ideas and^observations as exemplified in the discussions of this chapter, 74. IV. THE ORGANISM AND ITS CHEMISTRY 75 Standpoint of the discussion that of the evolutionary naturalist, 75. The organism, as a chemical laboratory, 78. Different organisms as different chemical laboratories, 83. (a.) Different odors and flavors of animals and plants as distinguishable by man, 84. (6) Differences in animal odors as distinguished by animals themselves, 88. The naturalist's approach to biochemical problems, 90. Some biochemical results viewed from, the naturalist's standpoint, 95. (a) Reichert and Brown's results on haemoglobin, 95; (6) The precipitin reaction between bloods of different animals, 99; (c) Comparative chemistry of the sperm of different species of fishes, 102; (d) Comparative chemistry of milk of different species, 103; (e) Comparative chemistry of digestive enzymes, 104; (f) Instances in general biochemistry where interesting facts of comparative chemistry are incidentally brought out, 106. The coalescence of natural history and comparative biochemistry, 107. Provisional enumeration of chemico-naturalist inquiries, 109. Peculiar importance to natural history of the application of physical chemistry to the chemistry of living beings, 110: (a) Individuation and speciation of "organic matter" fundamental biologic facts, 111; (6) Indications that variation and individuation are primarily chemical, while constancy and uniformity are primarily physical, 115. V. THE ORGANISM AND ITS PROTOPLASM 120 Protoplasm and mystification, 120. Responsibility for the mystification of protoplasm, 121. Conception of animal sarcode and plant protoplasm as "identical stuffs," 123. Max Schultze's actual teachings as to protoplasm and sarcode, 125: (a) Cell nucleus distinct from protoplasm, but both nucleus and protoplasm essential to life of cell, 126; (6) Recognized common attributes but not identity of protoplasm in all organisms, 128. Ernst Brucke's conception of the cell as an organism, 129.Characteristic organization in all cells, 131.Results of later description and classification of cell sub-lialancini/ the account hefireen the mosaic and totipotence theories, 206. The "i>romorphology" of germ cells, 211:(a) Facts of immediate ohscrralion on which the conceji/ion rests, .'/.'; (l>) (,'round* for believing minute observable specific differences between germ cells important, 214! xxvi Contents CHAPTER PAGE (c) Reflections on a promorphology of germ cells beyond the limits of visibility, 222. IX. ORGANISMS CONSISTING OF ONE CELL 227 A. Adult form and structure. Remarks on the conception of the cell as an elementary organism, 227. Comparison of the structure of a single cell with that of organisms composed of many cells, 230: (a) Comparison of certain dilates and metazoans, 23%; (6) Comparison of a radiolarian and a jellyfish, 235; (c) Comparison of the shell of a rhizopod and a nautilus, 237. The unjustifiable conception th...

show abstract

Section: The Chromosomes Of Germ-cells In Fertilizationmentioning

confidence: 98%

Section: 275mentioning

confidence: 99%

“…Sumatrensis) has none. 11 The well known fact may also be recalled that scent glands are often distinctive of the sexes.…”

Section: Distinguishable By Manmentioning

confidence: 99%

Section: (A) As Tested By Embryonic Developmentmentioning

confidence: 99%

Section: (H) the Clmging Organs Of Sporozoamentioning

confidence: 99%

See 3 more Smart Citations

The unity of the organism; or, The organismal conception of life, by William Emerson Ritter ...

Ritter¹

1919

View full text Add to dashboard Cite

show abstract

Structure, Properties and Applications of Two‐Dimensional Hexagonal Boron Nitride

et al. 2021

View full text Add to dashboard Cite

Hexagonal boron nitride (h-BN) has emerged as a strong candidate for twodimensional (2D) material owing to its exciting optoelectrical properties combined with mechanical robustness, thermal stability, and chemical inertness. Super-thin h-BN layers have gained significant attention from the scientific community for many applications, including nanoelectronics, photonics, biomedical, anti-corrosion, and catalysis, among others. This review provides a systematic elaboration of the structural, electrical, mechanical, optical, and thermal properties of h-BN followed by a comprehensive account of stateof-the-art synthesis strategies for 2D h-BN, including chemical exfoliation, chemical, and physical vapor deposition, and other methods that have been successfully developed in recent years. It further elaborates a wide variety of processing routes developed for doping, substitution, functionalization, and combination with other materials to form heterostructures. Based on the extraordinary properties and thermal-mechanical-chemical stability of 2D h-BN, various potential applications of these structures are described.The ORCID identification number(s) for the author(s) of this article can be found under

show abstract

The Protozoa, by Gary N. Calkins.

Cited by 2 publications

References 0 publications

The unity of the organism; or, The organismal conception of life, by William Emerson Ritter ...

The unity of the organism; or, The organismal conception of life, by William Emerson Ritter ...

Structure, Properties and Applications of Two‐Dimensional Hexagonal Boron Nitride

Contact Info

Product

Resources

About