De la croissance relative à l'allométrie (1918-1936)/ From relative growth to allometry (1918-1936)

2000 ◽  
Vol 53 (3) ◽  
pp. 475-498 ◽  
Author(s):  
Jean Gayon
Keyword(s):  
Relative Growth

A Measure of Economic Growth in East and in West Pakistan

1961 ◽  
Vol 1 (2) ◽  
pp. 49-54
Author(s):  
S. U. Khan
Keyword(s):  
Regional Planning ◽  
National Income ◽  
Future Planning ◽  
Correct Evaluation ◽  
Relative Growth ◽  
Relative Growth Rates ◽  
National Planning ◽  
Income Data ◽  
Regional Basis ◽  
The Difference

It is sometimes said that "national planning will simply have no meaning if it completely ignores the economic disparities between the two wings and fails to evolve a sensible pattern of regional planning"2. The lack of much essential data on a regional basis, however, renders any precise estimate of the relative growth rates almost impossible. Data either are not available or are inadequate on such important variables as production, income, consumption and trade, so that even a correct evaluation of past development efforts is not possible. The implications of such a situation for future planning are not difficult to understand. In this article an attempt is made to estimate the absorption of specified commodities in East and West Pakistan separately3. This will indicate the pattern of consumption and also give a rough idea about the growth rate of the two wings. With this purpose in view, quantity indices of absorption are prepared for each wing separately, taking data on availability of goods and prices from the Institute's monograph on Inflation. The quantity indi¬ces, however, are not of course strictly comparable with national income estimates because of the difference in coverage of the two series. National income data include government, services, trade, etc., while the quantity indices cover only specified goods available for each region.

CHANGES IN ENZYMES AND PROTEINS IN SALT-SHOCKED VS. GRADIENT INCREASES IN NACL IN `POINSETT' CUCUMBER ROOTS

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1091G-1091
Author(s):  
Anne K. Hurley ◽  
B. Greg Cobb
Keyword(s):  
Invertase Activity ◽  
Shock Treatment ◽  
Cucumis Sativus L ◽  
Relative Growth ◽  
Relative Growth Rates ◽  
Salt Shock ◽  
Gradient Solution ◽  
Cucumber Roots ◽  
Average Plant ◽  
Plastochron Index

Cucumis sativus, L., `Poinsett' seedlings were grown under artificial light in 40% modified Hoagland's solution until an average plant plastochron index of 4.73 was reached. Plants were then placed in solutions of (1) 0 mM NaCl, (2) 80 mM NaCl (salt-shock), or (3) placed in a dropwise gradient solution of NaCl and Hoagland's until the final concentration of 80 mM NaCl was reached at 41 hours. Leaves of the 80 mM shock treatment wilted immediately, but recovered turgor within 6 hours. Leaves of 80 mM gradient did not wilt at anytime. The control and gradient treatments had relative growth rates which were similar to each other, but RGR decreased in the shock treatment. Invertase activity was measured in the roots at 24, 41, and 48 hours after initial treatment. Invertase activity of shock treatment increased significantly over the controls at 24 hours. The 80mM gradient was not significantly different than either treatment. Four isozymes of α– galactosidase were detected. The relative intensities of the bands varied with time and treatment. One invertase band was resolved in roots on 8% native acrylamide gels. SDS gels indicated increases in proteins in the gradient treatment compared to the control and the 80 mM shock treatment.

Comparing Research Output in Library & Information Science: A Bibliometric Study of Panjab University and Guru Nanak Dev University

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Rupak Chakravarty ◽  
Jyoti Sharma
Keyword(s):  
Doubling Time ◽  
Information Science ◽  
Research Output ◽  
Faculty Members ◽  
Library And Information Science ◽  
Authorship Pattern ◽  
Document Type ◽  
Relative Growth ◽  
Curriculum Vitae ◽  
Personal Visit

The present study focuses on analysis of research output in the discipline of Library and Information Science at Panjab University, Chandigarh and Guru Nanak Dev University, Amritsar till 31 December 2014. The curriculum vitae (CV) and publication details of faculty members of Department of Library and Information Science were obtained by personal visit to universities and bibliographic information on their papers were recorded. The study deals with 152 publications of Panjab University, Chandigarh and 111 publications of Guru Nanak Dev University, Amritsar, in the field of Library and Information Science. It examines the Library and Information Science output by different ways like document type, authorship pattern, and degree of collaboration. The study also examines the relative growth rate of publications and doubling time for publications.

scholarly journals Optimization of Different Factors for Initiation of Somatic Embryogenesis in Suspension Cultures in Sandalwood (Santalum album L.)

Horticulturae ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. 118
Author(s):  
Manoj Kumar Tripathi ◽  
Niraj Tripathi ◽  
Sushma Tiwari ◽  
Gyanendra Tiwari ◽  
Nishi Mishra ◽  
...  
Keyword(s):  
Cell Suspension ◽  
Nutrient Medium ◽  
Normal Growth ◽  
Cell Suspension Cultures ◽  
Suspension Cultures ◽  
Embryonic Axis ◽  
Santalum Album ◽  
Relative Growth ◽  
Santalum Album L ◽  
Embryogenic Tissues

Santalum album (L.) is a prized tropical tree species of high therapeutic and industrial importance. The wood of these naturally grown plants is extensively harvested to acquire therapeutically important metabolite santalol and be used for additional functions such as in wood statuette industries. Due to high demand, it is crucial to maintain a sufficient plant population. An easy protocol for establishing cell suspension culture initiated from the loose embryogenic callus mass of sandalwood was realized by shifting 6–8-week-old morphogenic calli acquired from the mature embryonic axis and cotyledon explant cultures in fluid media. The asynchronous embryogenic cultures were sloughed with clumps of flourishing cell clumps and embryos of various progressive phases along with diffident non-embryogenic tissues. The frequency of embryo proliferation was evidenced to determinethe expansion pace of embryogenic masses under diverse conditions. The intonation of initiation and creation of cell suspension was under the directive of the influence of exogenous plant growth regulators amended in the nutrient medium at different concentrations and combinations. Maximum relative growth rate (386%) and clumps/embryoids in elevated integers (321.44) were accomplished on MS nutrient medium fortified with 2.0 mg L−1 2,4-D in association with 0.5 mg L−1 BA and 30.0 g L−1 sucrose raised from mature embryonic axis-derived calli. Plantlet regeneration in higher frequency (84.43%) was evidenced on MS medium amended with 1.0 mg L−1 each of TDZ and GA3 in conjunction with 0.5 mg L−1 NAA and 20.0 g L−1 sucrose. Mature embryonic axis-derived calli were found to be constantly better than mature cotyledon-derived calli for raising profitable and reproducible cell suspension cultures. Regenerants displayed normal growth and morphology and were founded successfully in the external environment after hardening.

Rates of growth of the food fungus of the leaf-cutting ant Atta cephalotes (L.) (Hymenoptera: Formicidae) on different substrates gathered by the ants

1979 ◽  
Vol 69 (1) ◽  
pp. 141-148 ◽  
Author(s):  
A. Mudd ◽  
G. L. Bateman
Keyword(s):  
Nutrient Availability ◽  
Plant Material ◽  
Growth Inhibitors ◽  
Atta Cephalotes ◽  
Leaf Extracts ◽  
Relative Growth ◽  
Relative Growth Rates ◽  
Foraging Preferences ◽  
Leaf Cutting ◽  
Rates Of Growth

AbstractGrowth of the food fungus of the leaf-cutting ant Atta cephalotes (L.) on extracts of plants selected by the ants was shown to be affected by the plant species, the pH of the extract, the concentration of the sap or plant extract and pretreatment of the substrate by the ants. It was not possible to establish an unambiguous relationship between the rate of growth of the fungus on leaf extracts and the foraging preferences of the ants for the leaves. There were indications, however, that the fungus grows most rapidly on extracts of plant material preferred by A. cephalotes. Relative growth rates of the fungus on different substrates may be related to the presence of growth inhibitors rather than to nutrient availability.

scholarly journals Biometric characteristics of the wild population of sea urchin Paracentrotus lividus (Lamarck, 1816) on the Tunisian coast

2021 ◽  
Author(s):  
F. Sellem ◽  
B. Bouhaouala-Zahar
Keyword(s):  
Sea Urchin ◽  
Wild Population ◽  
Multivariable Analysis ◽  
Paracentrotus Lividus ◽  
Biometric Data ◽  
Relative Growth ◽  
Tunisian Coast ◽  
Population Discrimination ◽  
Positive Growth ◽  
Negative Growth

AbstractThe present study was conducted to provide biometric data of the edible sea urchin Paracentrotus lividus along the Tunisian coastline where thirteen marine localities were selected randomly. A total of 653 individuals were collected and their metric and weight measurements were recorded. The size distribution of the different samples was determined and relative growth expressions were deduced. Data analysis showed that all localities’ samples of the wild population were dominated by one-size class, except Port Prince and Haouaria. Interestingly, only diameter-height relationships (D-H) were different between the geographical localities. Diameter-weight relationships (D-TW and D-TWTE) revealed a significant negative growth for all the localities, with the exception of Gammarth which showed positive growth for total weight (D-TW). Moreover, the multivariable analysis revealed divergences and/or similarities between metric and weight variables. Altogether, data highlights the inter-population discrimination with respect to geographic localization and clear segregation between the northern and the eastern localities demonstrated the plasticity of the species.

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