Fungal melanins: a review

1998 ◽  
Vol 44 (12) ◽  
pp. 1115-1136 ◽  
Author(s):  
M J Butler ◽  
A W Day

The relationship of polyketide melanogenesis molecular biology to that of nonmelanin-producing pathways in a wide range of fungi and other organisms is discussed. Analytical methods and fundamental properties of melanins are discussed and fungal melanin properties are compared with those of animal and bacterial melanins. The enzymatic degradation of melanins by lignin peroxidases is described.Key words: fungal melanin, polyketide melanin, DHN melanin, melanin degradation, melanin properties, melanin analysis.

1992 ◽  
Vol 262 (6) ◽  
pp. S9 ◽  
Author(s):  
E Bowdan

Regulation of feeding is a fundamental element of homeostasis. This is reflected in the similarity of control mechanisms in a wide range of animals, including insects and humans. A close examination of feeding behavior can illuminate the physiological processes driving regulation. A simple, inexpensive method for recording fine details of feeding by caterpillars is described. Possible experiments, interpretation of the data, and the relationship of observations to the underlying physiology, are outlined.


Upravlenie ◽  
2017 ◽  
Vol 5 (2) ◽  
pp. 16-21
Author(s):  
Толкачев ◽  
P. Tolkachev

The article discusses the relationship of economic management with the economic basis. The thesis is substantiated that effective economic management depends on economic ideal, to which society will strive to achieve. The world surrounding a person constantly retains its essential fundamental properties. And in this way it is perfect. Man spiritually assumes himself above nature. Potentially, he sees himself as a master of the natural world. However, acting in nature as an independent free force, he constantly reveals his imperfect. Because of his limited knowledge of the infinitely complex nature, everything that a person creates is imperfect. The path to perfection is the natural goal of man’s life on earth. However, on this common path, all nations and their large groups – civilizations – are moving along different roads. And in modern conditions, these differences have reached a dangerous feature – more and more the confrontation of civilizations is emerging. The historical feature of the Russian economic worldview is the absolute priority of moral ideals. Its deep economic ideals are not aggressive in relation to other countries and peoples. These ideals are in finding and multiplying of good. Therefore, potentially, Russia can counteract the negative scenario of the development of civilizational conflicts.


Author(s):  
W.S. Green

This introduction to the symposium Inclusive Design and Usability gives an overview of some of the issues and problems facing ergonomists and designers who attempt to provide access to current technologies for a wide range of user groups, particularly those who may be considered disadvantaged or handicapped. The relationship of ergonomics and design is raised.


Author(s):  
Joel Altman

This chapter examines the use of ekphrasis in early modern theatre, with particular emphasis on its effect on the stage and the relationship of ekphrastic speech to the ongoing action in which it is enunciated. It maps the parameters of ekphrasis on the early modern English stage by considering a few examples of the ways in which ekphrasis instantiates early modern theatricality. It also discusses the expressive potential of ekphrastic speech and its transmission to the listener as well as the ironic uses of ekphrasis as a mode of persuasion, whether directed to oneself, an on-stage auditor, off-stage auditors, or all three. It argues that ekphrasis creates nothing less than what it calls ‘the psyche of the play’ and explains how the unusually flexible capacity of the staged word allows it to be used for a wide range of theatrical techniques, including the usual sense of ‘word-painting’. Finally, it looks at William Shakespeare’s deployment of ekphrasis in his work such asHamlet.


2010 ◽  
Vol 33 (1) ◽  
pp. 4.1-4.32 ◽  
Author(s):  
Richard B. Baldauf ◽  
Robert B. Kaplan

Applied Linguistics is a diverse field, comprising a substantial number of sub-fields, sub-specialisations and related fields. To see that this is the case one need only examine the various hand- books and encyclopaedic references that have been published in the last ten years to see the wide range of topics that have been covered. As with many professional areas in academia, Applied Linguistics is organised around national organisations, with its international structure being a loose confederation known as the International Association of Applied Linguistics (AILA). Given these diverse academic and structural arrangements, it should not be surprising if academics within different national associations were to cluster around different interests within the field. This study explores the question of what emphases are found in various parts of the world in Applied Linguistics, and in particular, the relationship of Australian Applied Linguistics to international trends using a structural text analysis of abstracts related to Applied Linguistics as well as an historical review of the trends involved.


2020 ◽  
Vol 5 (1) ◽  
pp. 103-122
Author(s):  
Dimitra L. Milioni ◽  
Pantelis Vatikiotis

The article explores alternative media sustainability across a wide range of Greek projects. In this regard, it probes into a number of factors related to both the political economy (funding, organization) of these projects and the nature (real/‘imaginary’, broad reach/niche) of the relationship with their communities/audiences. The findings of the research reveal a dynamic and contradictory field regarding alternative media resilience in terms of the dialectical relationship of idealistic/realistic (on the production, organization level) and puristic/pragmatic (on the communication, reach level) features. The article concludes by highlighting the strategies employed by the most successful projects in terms of sustainability in relation to their positioning along the idealism/realism and purism/pragmatism nexus.


1990 ◽  
Vol 68 (4) ◽  
pp. 1501-1513 ◽  
Author(s):  
Z. Bshouty ◽  
M. Younes

To ascertain the relative contributions of vascular distensibility and nonhomogeneous behavior within the pulmonary circulation to the distinctive nonlinear relationship between inflow pressure (Pin) and flow [pressure-flow (P-F) relationship] and between Pin and outflow pressure (Pout) at constant flow (Pin-Pout relationship), we developed a multibranched model in which the elastic behavior of, and forces acting on, individual branches can be varied independently. The response of the multibranched model is described in the companion article (J. Appl. Physiol. 68: 1514-1527, 1990). Here we describe the methods used and the responses of single components of the larger model. Perivascular pressure is modeled as a function of intravascular and transpulmonary pressures (Pv and Ptp, respectively) and vessel length as a function of lung volume. These and the relationship between vascular area (A) and transmural pressure (Ptm) were modeled primarily from the dog data of Smith and Mitzner (J. Appl. Physiol. 48: 450-467, 1980). Vasomotor tone is modeled as a radial collapsing pressure (Pt) in the same plane as Ptm. In view of lack of information about the relationship between Pt and A for a given active state, different patterns were assumed that span a wide range of possible relationships. The P-F and Pin-Pout relationships of single vessels were very similar to those reported for the entire intact circulation. Of note, the slope of the Pin-Pout relationship in the low Pout range (0-5 Torr) was very low (less than 0.25) and increased gradually with Pout toward unity. Vasomotor tone caused an apparent parallel shift in the P-F relationship in the physiological flow range of the dog (2-8 l/min) regardless of the pattern used to model the Pt vs. A relationship; different patterns affected the P-F relationship only over the low flow range before the parallel shift was established.


1973 ◽  
Vol 10 (1) ◽  
pp. 54-71 ◽  
Author(s):  
R. F. Emslie

Spirited discussion continues about the nature of the relationship of rocks of anorthositic composition to intermediate and silicic rocks comprising so-called mangerites, charnockites, adamellites, etc. Because of close spatial association, all of these rocks may be considered to constitute an 'anorthosite suite' without prejudgement as to genetic implications.About 700 rock analyses, largely from the literature but supplemented by previously unpublished analyses from the Michikamau and Morin intrusions have been used to examine some of the chemical characteristics of the anorthosite suites. The suites are commonly high in iron relative to magnesium and alkalies, high in alumina, and have high K2O/SiO2 ratios over a wide range of SiO2 concentrations. The chemical data together with the physical characteristics of the anorthosite suites are interpreted to mean that the magmas are orogenically generated but emplaced on the flanks of orogenic belts in 'anorogenic' environments. Rapakivi granitic suites are chemically similar to the silicic members of the anorthosite suites.


2014 ◽  
Vol 38 ◽  
pp. 1-39
Author(s):  
Ilga Jansone

On flora semantics in house names found in Vidzeme: materials contained in the 1826 counting of souls in Vidzeme provinceThe information of the counting of souls containing both house names and names of individuals is an essential aspect of historical onomastics.The first counting of souls in Vidzeme took place in 1782 and coincided with the 4th analogous census of the provinces of Russia. Subsequently these took place at irregular intervals, the 5th in 1795, the 6th in 1811, the 7th in 1816, the 8th in 1834, the 9th in 1850, and the final, 10th in 1858.The number of house names entered in the 1826 counting of souls in Vidzeme province (guberna) is 14,500, including those of peasant homes that had been separated from another property whilst retaining the same name. House names based on flora (incl. names of mushrooms) semantics are listed for 574 dwellings, which represent just about 4% of all house names listed for Vidzeme, providing that repeated house names are counted separately. In case of several manors data is missing (lost) for the 1826 census, information for these manors is taken from previous and subsequent censuses.In many instances (279 cases registered) house names were based on the names of deciduous trees found in their immediate vicinity: such names comprise 48.6% of all house names of flora semantic origin, i. e., ozols ‘oak-tree’, bērzs ‘birch-tree’, kārkls ‘osier’, liepa ‘linden tree’, kļava ‘maple tree’, apses ‘aspen’, osis ‘ash tree’, alksnis ‘alder’, lazda ‘hazel-tree’, vītols ‘willow’, ieva ‘bird cherry’.Names based on names of conifers are found (35 instances were recorded, or 6.1% of all house names based on flora semantics), i. e., egle ‘spruce tree’, paeglis, kadiķis ‘juniper’, priede ‘pine-tree’.House names based on names of fruit trees and bushes are only occasionally found in Vidzeme, with 8 recorded instances, or 1.4% of all house names based on flora semantics, i. e., ābele ‘apple tree’, and upene ‘black-currant’.The next sub-group of house names based on flora semantics comprises those based on names of cereals. This is one of the most widely occurring flora semantics sub-groups and contains 58 entries, or 10,1% of all house names based on flora semantics, i. e., auzas ‘oats’, rudzi ‘rye’, mieži ‘barley’, kvieši ‘wheat’, griķi ‘buckwheat’.House names have been found based on terms of 6 legumes, which represents 1% of all house names based on flora semantics, i. e., zirnis ‘pea’, pupa, ‘bean’.Names of common vegetables are the basis for a considerable number of house names. i. e. 53 instances are recorded, representing 9.2% of all house names derived from flora semantics, i. e., rutks, ruduks ‘radish’, kāposts ‘cabbage’, rācenis ‘turnip’, sīpols ‘onion’, ķiploks ‘garlic’, kālis ‘swede’, gurķis ‘cucumber’.House names also derive from terms of widely-cultivated plants such as kaņepes ‘hemp’, apiņi ‘hops’ and lini ‘flax’. These have been the basis for 40 house names, which represent 7% of all hose names based on flora semantics.House names are also based on the names of cultivated and wild herbal plants, and of garden weeds. 47 such cases have been recorded, corresponding to 8.2% of all house names based on flora semantics, i. e., dadzis ‘thistle’, āboliņš ‘clover’, and amoliņš ‘sweet clover’, dille ‘dill’, grīslis ‘sedge’, smilga ‘bent grass’, usne ‘creeping thistle’, pienene ‘dandelion’, pērkones ‘charlocks’, niedre ‘reed’, skosta ‘horse-tail’, vībotne ‘mugwart’.A total of 32 house names based on three flower terms, roze ‘rose’, magone ‘poppy’ and astere ‘aster’ have been recorded; this represents 5.6% of all house names based on flora semantics. The majority (26) of these house names are based on terms of roses.A number of house names in Vidzeme appear to be based on names of mushrooms. 6 such names have been recorded, which represent 1% of all house names based on flora semantics, i. e., bekas ‘boletus’, krimilde, and rudmiese ‘Loctarius’.House names listed in the 1826 counting of souls are based on a wide range of flora semantics, with a clear preference for lexemes associated with names of trees. It is possible that this reflects landscape elements close to these homes, as well as the place that these features have in the relationship of home owners with nature, and their work. In order to draw any deeper conclusions about the presence of flora semantics in house names it would be necessary to examine all relevant historical records up to the present time. O semantyce roślinnej nazw domostw w Widzeme: materiały zawarte w spisie dusz z roku 1826 w krainie WidzemeInformacje o liczeniu dusz, obejmujące zarówno nazwy domostw, jak i nazwiska osób stanowią istotny aspekt onomastyki historycznej.Pierwsze liczenie dusz w krainie historycznej Widzeme odbyło się w 1782 r. i zbiegło się w czasie z podobnym, czwartym spisem, przeprowadzonym w guberniach rosyjskich. Kolejne spisy odbywały się nieregularnie: piąty w 1795 r., szósty w 1811, siódmy w 1816, ósmy w 1834, dziewiąty w 1850, i ostatni, dziesiąty, w roku 1858.Liczba nazw domostw uwzględnionych w spisie dusz z 1826 r. w Widzeme wynosi 14 500, łącznie z domami chłopskimi, będącymi odrębnymi częściami innych posiadłości, choć noszącymi tę samą co one nazwę. Nazwy domów pochodzące od nazw roślin (łącznie z nazwami grzybów) podano w przypadku 574 miejsc zamieszkania, co stanowi tylko ok. 4% ogółu nazw, zakładając, że powtarzające się nazwy liczono osobno. Ponieważ w przypadku niektórych siedzib brak danych (zaginęły) w spisie z roku 1826, informacje o nich zaczerpnięto ze spisów poprzednich i następnych.Nazwy siedzib zamieszczone w spisie dusz z 1826 r. opierają się w szerokim zakresie na semantyce roślinnej, przy czym wyraźnie uprzywilejowane są jednostki leksykalne kojarzone z nazwami drzew. Najprawdopodobniej jest to związane z elementami krajobrazu, znajdującymi się w bezpośrednim sąsiedztwie poszczególnych domostw, ale może też być świadectwem stosunku ich mieszkańców do otaczającej przyrody oraz do swojej pracy. Aby móc wyciągnąć dalsze wnioski na temat obecności semantyki roślinnej w nazewnictwie domostw, konieczne jest przebadanie wszystkich zapisów historycznych aż po czasy nam współczesne.


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