Showing papers by "University of Florence published in 1970"
TL;DR: In a very crucial sense there is no methodology without logos, without thinking about thinking as mentioned in this paper, and if a firm distinction is drawn between methodology and technique, the latter is no substitute for the former.
Abstract: “To have mastered ‘theory’ and ‘method’ is to have become a conscious thinker, a man at work and aware of the assumptions and implications of whatever he is about. To be mastered by ‘method’ or ‘theory’ is simply to be kept from working.” The sentence applies nicely to the present plight of political science. The profession as a whole oscillates between two unsound extremes. At the one end a large majority of political scientists qualify as pure and simple unconscious thinkers. At the other end a sophisticated minority qualify as overconscious thinkers, in the sense that their standards of method and theory are drawn from the physical, “paradigmatic” sciences. The wide gap between the unconscious and the overconscious thinker is concealed by the growing sophistication of statistical and research techniques. Most of the literature introduced by the title “Methods” (in the social, behavioral or political sciences) actually deals with survey techniques and social statistics, and has little if anything to share with the crucial concern of “methodology,” which is a concern with the logical structure and procedure of scientific enquiry. In a very crucial sense there is no methodology without logos, without thinking about thinking. And if a firm distinction is drawn—as it should be—between methodology and technique, the latter is no substitute for the former. One may be a wonderful researcher and manipulator of data, and yet remain an unconscious thinker.
2,207 citations
TL;DR: Ebsco as mentioned in this paper focused on a study which dealt with production function, heterogeneous capital and the theory of distribution and relations between the wage, the rate of interest and the product per worker in the two-commodity economy.
Abstract: Focuses on a study which dealt with production function, heterogeneous capital and the theory of distribution. Relations between the wage, the rate of interest and the product per worker in the two-commodity economy; Details on the surrogate production function; Premises of the traditional theory of distribution. (Из Ebsco)
383 citations
TL;DR: The olistostromes and olistoliths as mentioned in this paper are a type of gravity nappes that are typically found in the Northern Apennines of the United States, where they were formed by the migration of the flysch basins from west to east.
140 citations
TL;DR: A necessary and sufficient condition of correctness of extremal problems for lower semicontinuous functionals defined in metric spaces is given in this paper, which is a necessary condition for extremal problem correctness.
Abstract: A necessary and sufficient condition of correctness of extremal problems for lower semicontinuous functionals defined in metric spaces is given.
110 citations
TL;DR: The eugeosynclinal sequences of the Northern Apennines are characterized by the presence of ophiolites both as a primary stratigraphic substratum and as olistostromes and olistoliths interbedded in the sedimentary succession.
109 citations
TL;DR: The Hercynian postgeosynclinal stage of the Northern Apennines is represented in detail and interpreted in detail by the Tuscan and Umbrian sequences as discussed by the authors.
89 citations
TL;DR: In this article, the evolution of the Northern Apennines geosyncline is divided into eu-and miogeosyn-clinal sequences, a late geoSynclinal and a post-eu-cline stage.
73 citations
71 citations
TL;DR: Whether GBL or GHB is the substance active as a depressant of C.N.S. is clarified and GBL given per os, i.v. or i.p. is capable of producing higher concentrations ofGHB in brain and blood than an equimolecular amount of GHB-Na administered by the same route.
41 citations
TL;DR: In this paper, the infrared and Raman spectra of liquid and crystalline propionaldehyde and butylaldehyde were measured between 4000 and 100 cm −1, and the existence of two different rotational isomers was confirmed and the enthalpy difference was obtained from the temperature dependence of the infrared band ntensities.
41 citations
TL;DR: Pseudopotential formfactors for Cu, Ag and Au are evaluated in this paper by means of a simple model potential, and the results show that Ag is more stable than Cu.
TL;DR: In this paper, the infrared and Raman spectra of triphenylene in the crystalline state and in solution were measured between 4000 and 100 cm−1; and the dichroism of the infrared bands in polycrystalline samples was determined.
TL;DR: In B. griseus, osservati in Somalia and in allevamenti in cattivita a Firenze, per la prima volta realizzati con queste vespe africane: atteggiamenti di riposo e di allarme, movimenti di pulizia, ''giravolta» attorno al peduncolo, ispezione, nutrizione delle larve e trofallassi, termoregolazione, estrazione della peritrof
Abstract: RIASSUNTO Nell'intento di fornire la necessaria base per un nuovo esame della biologia del gen. Belonogaster, si e data, anche con l'ausilio di registrazioni cinematografiche, una descrizione dei seguenti comportamenti di B. griseus, osservati in Somalia e in allevamenti in cattivita a Firenze, per la prima volta realizzati con queste vespe africane: atteggiamenti di riposo e di allarme, movimenti di pulizia, «giravolta» attorno al peduncolo, ispezione, nutrizione delle larve e trofallassi, termoregolazione, estrazione della peritrofica, comportamenti interindividuali e di dominazione, accoppiamento, ovideposizione, oofagia. (Ai comportamenti di costruzione ed alla architettura dei nidi della stessa specie sara dedicato un lavoro a parte). In B. griseus esistono caratteristici comportamenti aggressivi e di dominazione (e relative reazioni di sottomissione), confrontabili con quelli noti dei Polistini. La gerarchia non sempre e evidente giacche in taluni nidi i comportamenti manifesti di dominazione e aggr...
TL;DR: In this article, a necessary and sufficient condition for the minimum problem for a functional I:X → R, defined on a complete metric space (X,d) is given.
Abstract: Given a functionalI:X →R, defined on a complete metric space (X,d), we give a necessary and sufficient condition for the minimum problem forI onX to be well posed or well posed in the generalized sense.
TL;DR: In this paper, a wide class of one-dimensional heat conduction problems with phase change is considered on the assumption that the latent heat is a given function of the position of the separation plane between the two phases: L=φ[s(t)].
Abstract: A wide class of one-dimensional heat conduction problems with phase change is considered on the assumption that the latent heat is a given function of the position of the separation plane between the two phases: L=φ[s(t)]. Some sufficient conditions for the existence and uniqueness of the solution in a given time-interval are given. This work permits the generalization of some previous results and the investigation of some cases of particular interest.
TL;DR: In this paper, the force-area isotherms of ethylene-propylene copolymers grafted with vinyl acetate were verified experimentally using the Huggins equation.
TL;DR: A difference in the fatty acid composition between both sexes was found and may be related to some modification in the metabolism of this tissue due either to atherosclerosis or to diabetes which cause an alteration of the lipid metabolism.
TL;DR: In this paper, the effects of temperature and of the partial pressures of carbon monoxide and hydrogen on the isomeric distribution of hydroformylation products of propene in the presence of Co 2 (CO) 6 [P(C 4 H 9 ) 3 ] 2.
TL;DR: The pathogenesis of some of the phenomena which follow apoplexy and subarachnoid hemorrhage, even today, has not been convincingly interpreted and recent advances in biochemistry and pharmacology give evidence that vari-
Abstract: * Department of Medicine, Division of Clinical Pharmacology, University of Florence, Florence, Italy. Presented at The Tenth Annual Meeting of the International College of Angiology, Geneva, Switzerland, July 23 to 28, 1968. This research was financed partly by the National Research Council, Rome, Italy. The pathogenesis of some of the phenomena which follow apoplexy and subarachnoid hemorrhage, even today, has not been convincingly interpreted. It is logical that under these conditions one should not look for the mechanism of these phenomena only in large, asphyctic processes, either edematous or destructive, but also in the action of the biologic substances which may be activated and concentrated in nervous tissue and in the cerebrospinal fluid (CSF) after intracranial bleeding. Recent advances in biochemistry and pharmacology give evidence that vari-
TL;DR: The Quaternary deposits of the Alboran Sea and associated sediment dispersal patterns, and geographic and tectonic setting of the region, are closely similar to those of some ancient flysch basins preserved in the geological record.
Abstract: The Quaternary deposits of the Alboran Sea and associated sediment dispersal patterns, and geographic and tectonic setting of the region, are closely similar to those of some ancient flysch basins preserved in the geological record.
TL;DR: A nonspecific proteolytic enzyme (pronase) has been successfully tested, showing the essential proteic nature of the nuclear paracrystals of Pteridophyta, and a correlation of paracrys with the aging of the plant is indicated.
Abstract: SUMMARY77 species of Pteridophyta were investigated at the electron microscope. In mesophyll cells of 59 species an impressive occurrence of intranuclear paracrystals was observed. Their sizes are approximately 1–3 μm varying according to the age of the plant. The paracrystals are usually polygonal-shaped but different forms are frequently encountered. At higher magnification a crystal lattice pattern can be resolved. Its substructure consists of a series of electron-opaque parallel subunits alternated with others whose electron opacity is less evident. The centre to centre spacing between two electron-opaque subunits is about 120 A.A nonspecific proteolytic enzyme (pronase) has been successfully tested, showing the essential proteic nature of the nuclear paracrystals.In general terms a correlation of paracrystals with the aging of the plant is indicated. No inverse size relationship, as reported by other authors, between nucleolus and these paracrystal-line formations was observed.Taxonomic perspectives ...
TL;DR: In 22 colonie di Belonogaster griseus (Fab.) della Somalia as mentioned in this paper, the authors determined the larghezza del vertice, the larghesia dello scuto, the lunghesia del peduncolo, and the number of hamuli.
Abstract: RIASSUNTO E CONCLUSIONI Il genere Belonogaster e stato considerato per lungo tempo come esempio tipico di Vespide sociale senza apparente differenziazione castale, con ♀ ♀ tutte equivalenti strutturalmente e fisiologicamente e tutte capaci di essere fecondate. In 22 colonie di Belonogaster griseus (Fab.) della Somalia sono stati determinati la larghezza del vertice, la larghezza e la lunghezza dello scuto, la larghezza e la lunghezza del peduncolo e il numero degli hamuli nelle ♀ ♀ fecondate e non fecondate. Lo sviluppo ovarico medio e stato calcolato misurando le 6 uova piu grandi di ciascuna ♀ (uno per ciascuno dei sei ovarioli). Per una colonia particolarmente grande (Nido 27) si e studiato, in natura, il comportamento delle varie ♀ ♀ per vari giorni per un totale di 22 ore. Dalle misure risulta che le ♀ ♀ fecondate hanno un torace statisticamente piu largo e piu lungo. In certe colonie le ♀ ♀ fecondate hanno anche un vertice piu largo. Le ♀ ♀ fecondate hanno uno sviluppo ovarico medio nettamente maggi...
01 May 1970
TL;DR: In this paper, two samples of polypropylene containing grafted methyl acrylate branches have been studied at different temperatures and it was shown that the macromolecules lie rigidly at the surface with considerable cohesive energy between the monomeric segments.
Abstract: Monolayers of two samples of polypropylene containing grafted methyl acrylate branches have been studied at different temperatures. Spreading enthalpies and entropies were deduced by plotting values of surface pressure versus temperature at different values of the area. From the values of such thermodynamic properties we conclude that the macromolecules lie rigidly at the surface with considerable cohesive energy between the monomeric segments.
01 Jan 1970
TL;DR: In this article, the authors developed a robust and comprehensive tool to evaluate the effect on household welfare of different agricultural policies in Tanzania and food price changes, using a two-stage estimation strategy: the shadow price of labour is first estimated and then used to estimate production and demand systems as well as labour market functions.
Abstract: Exogenous shocks to farmers' consumption, production and labour market decisions are rarely considered accurately. For farm households, under labour market imperfections, such decisions are often interlinked. This calls for non-separable agricultural household models. According to this framework, second-order (or behavioural) effects include a direct (i.e., supply or demand reactions due to an exogenous shock) and an indirect (i.e., supply or demand adjustments to the endogenous variations in the shadow wage generated by the exogenous shock) component. Under large price changes or following structural interventions, such as those concerning land redistribution or mechanisation practices, neglecting such second-order effects on consumption and production can bias the final impact on household welfare. The main objective of this study is thus to develop a robust and comprehensive tool to evaluate the effect on household welfare of different agricultural policies in Tanzania and food price changes. A two-stage estimation strategy is adopted: the shadow price of labour is first estimated and then used to estimate production and demand systems as well as labour market functions. These models are subsequently used to simulate the effect on household welfare of a hypothetical 40% increase in the price of cereals and other crops and a hypothetical 10% increase in the hectares of arable land and in the use of ox-ploughs. The results are finally compared with the case in which a separable model is adopted.
TL;DR: In the rat, after a load of GT the substance is slowly excreted in the urine, and urinary excretion is correlated to the variation of GT in different organs (kidney, liver, heart, muscle and brain).
TL;DR: In this article, the authors show that magnetic fields in ordinary stars are usually attributed to non-equilibrium processes such as the existence of currents in the form of drifting charges, but they have recently shown that a new kind of quasi -equilibrium state exists, which possesses a uniform self-consistent magnetization.
Abstract: RECENTLY there has been interest in the problem of intense magnetic fields (IMF) in gravitationally collapsed bodies1–6. In particular, the radio emission from neutron stars (pulsars) suggests strong magnetic fields of the order of 1012 G (refs. 5 and 7). According to the law of flux conservation, in a collapse process the magnetic fields strength increases as the square of the contracting factor a (> 1). If the initial magnetic field is of the order of 103 G (the field in sunspots) before collapse, then assuming contraction from a star of one solar radius ∼1011 cm to that of a neutron star of 106 cm, a field strength of 1013 G may be achieved. Magnetic fields in ordinary stars are usually attributed to non-equilibrium processes such as the existence of currents in the form of drifting charges, but we have recently shown that a new kind of quasi -equilibrium state exists, which possesses a uniform self-consistent magnetization8.