96 research outputs found
Selection of Beauveria bassiana and Metarhizium anisopliae isolates for the control of Blissus antillus (Hemiptera: Lygaeidae)
Picturing the nation : The Celtic periphery as discursive other in the archaeological displays of the museum of Scotland
Using the archaeological displays at the Museum of Scotland in Edinburgh, this paper examines the exhibition as a site of identity creation through the negotiations between categories of same and Other. Through an analysis of the poetics of display, the paper argues that the exhibition constructs a particular relationship between the Celtic Fringe and Scottish National identity that draws upon the historical discourses of the Highlands and Islands of Scotland as a place and a time \u27apart\u27. This will be shown to have implications for the display of archaeological material in museums but also for contemporary understandings of Scottish National identity. <br /
Variação de matéria seca e de nutrientes nas folhas e nos frutos, produção de ácido ascórbico e suco, em seis cultivares de citros, durante um ciclo
De uma plantação de citros, com os cultivares T. Cravo (Citrus reticulata Blanco), L.Hamlin (Citrus sinensis (L.) Osbeck), T. Murcott (Citrus reticulata Blanco x Citrus sinensis (L.) Osbeck), L. Natal (Citrus sinensis (L.) Osbeck, L. Valencia (Citrus sinensis (L.) Osbeck) e L. Pera (Citrus sinensis (L.) Osbeck), situada na "Fazenda Sete Lagoas", no município de Mogi-Guaçu (22° 22% 46° 56'W.Gr.), em Latossolo Vermelho amarelo, fase arenosa, foram coletados frutos 30 dias após florescimento, até a idade da coleta comercial. No material coletado, foram determinadas a variação da matéria seca, a concentração dos macro e micronutrientes nas folhas adjacentes ao fruto, a extração de macro e micronutríentes pelos frutos, a produção de suco (ml) por fruto e a concentração de ácido ascórbico (mg/100 ml de suco). Concluiu-se que: 1. O aumento da matéria seca, intensifica-se a partir do segundo mês apos o florescimento; 2. Com exceção da T. Cravo, ocorre uma diminuição na produção de matéria seca no final do ciclo; 3. A concentração dos macro e micronutrientes nas folhas apresenta oscilações durante o desenvolvimento do fruto; 4. A ordem decrescente de extração de nutrientes é: K, N, Ca, Mg, P = S, Fe, B, Zn, Mn, Cu; 5. A capacidade de exportação de nutrientes pelos cultivares é, em ordem decrescente: L. Pera, L. Hamlin = T. Cravo, T. Murcott, L. Valencia, L. Natal; 6. A quantidade de suco produzido por fruto, oscila entre 43 a 95 ml; 7. A concentração de ácido ascórbico (mg/100 ml de suco), varia entre 30 a 95
Variety of Methodological Approach in Economics
It has been argued by some that the distinction between orthodox economics and heterodox economics does not fit the growing variety in economic theory, unified by a common methodological approach. On the other hand, it remains a central characteristic of heterodox economics that it does not share this methodological approach, but rather represents a range of alternative methodological approaches. The paper explores the evidence, and arguments, for variety in economics at different levels, and a range of issues which arise. This requires in turn a discussion of the meaning of variety in economics at the different levels of reality, methodology, method and theory. It is concluded that there is scope for more, rather than less, variety in economic methodologies, as well as within methodologies. Further, if variety is not to take the form of “anything goes”, then critical discussion by economists of different approaches to economics, and of variety itself, is required
Efeito residual da escória de siderurgia como corretivo de acidez do solo na soqueira de cana-de-açúcar
Development of a noninvasive diabetes screening device using the ratio of fluorescence to rayleigh scattered light
We have developed a new lens measurement system (LMS) that simultaneously measures the intensities of fluorescence and Rayleigh components at various distances into the lens along the optical axis. The noninvasive measurement is performed through an undilated pupil, and with the assistance of a pupil tracking system that facilitates maintaining the x and y positions of the sample volume (ca. 300 μm in length, 600 μm high, and 80 μm wide) to within ±100 μm of any programmed "lock" position. The intensity of the Rayleigh component that is used to normalize the measured fluorescent signal serves to correct the attenuation effects due to absorption and lens light scatter (Mie-Tyndall type). This report, resulting from a SpectRx Site L clinical study using a refined instrumentation (SpecRx Scan V), presents analysis of fluorescence and Rayleigh data from the lenses of 923 controls and 239 diabetic subjects (45 Type I and 194 Type II) ranging from 23 to 75 years old. Fluorescence and Rayleigh data have been obtained via confocal mode from various locations nominally along the lens optical axis (the true trajectory of a sample volume could be shown in a figure) for controls and diabetics, at different ages, using three pairs of excitation and collection wavelengths: 364/495 nm, 434/495 nm, and 485/515 nm. For control subjects, there exists a strong, almost linear relationship between age and fluorescence, while diabetic subjects tend to deviate from this age-fluorescence relationship. Our data show that the lenses of diabetic patients are subject to an accelerated aging process, presumably due to an elevated level of brown and fluorescent protein adducts and crosslinks from nonenzymatic glycosylation (Maillard-Amadori reactions). We have also shown that by using the measured Rayleigh profiles to normalize the measured fluorescence, most of the absorption effects are removed and therefore the separation between the fluorescence of diabetics and controls is greatly improved. Thus, the device for measuring fluorescence/Rayleigh ratios can be used to noninvasively screen populations for possible undiagnosed diabetes. © 1996 Society of Photo-Optical Instrumentation Engineers
Nível crítico de fósforo em cultivares de algodão: II. Escolha do órgão adequado para determinação do nível crítico
Evaluation of bulk and particle sensor-based sorting systems for the New Afton block caving operation
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