Investigations concerning the preparation and application of substitutes for the present practice of using stable manure and cereal straw in the biological heating of hot-beds

1949 ◽  
Vol 1 (3) ◽  
pp. 240-263 ◽  
Author(s):  
F. C. Gerretsen ◽  
A. Manten ◽  
F. M. Muller
2009 ◽  
Vol 150 (44) ◽  
pp. 2012-2018 ◽  
Author(s):  
László Márk ◽  
András Katona

Magyarországon 1993 és 2006 között a születéskor várható élettartam 4,14 évvel nőtt, és ehhez a cardiovascularis halandóság javulása 1,85 évvel járult hozzá. A lipidszintcsökkentő kezelés, a lipidcélértékek elérése az utóbbi években a cardiovascularis prevenció egyik súlyponti kérdése lett. A javuló tendencia ellenére az LDL-koleszterin-szint célértékének elérési aránya nem nagyobb egyharmadnál, és ebben leginkább az játszik szerepet, hogy a nem megfelelő szintű lipidcsökkentést igazoló eredménybe az orvosok nagyobb része (2007-ben 56%-a) beletörődik, nem igyekszik módosítani a kezelésen, pedig egyre több adat igazolja, hogy az alacsonyabb LDL-koleszterin-szint elérése nemcsak a klinikai kimenetelt javítja szignifikánsan, hanem költséghatékony is. Az utóbbi időszak legjelentősebb, statinnal végzett új vizsgálata a JUPITER, amely lipidszintjeik miatt statinkezelést nem igénylő, magas hs-CRP-szintű, nem ismert érbetegeken igazolta, hogy 20 mg rosuvastatin adásával szignifikánsan, 44%-kal csökkenthető a primer végpont (a cardiovascularis halálozás, nem halálos stroke és szívinfarktus, instabil angina vagy revascularisatio) és 20%-kal az összhalálozás előfordulása. Egy primer végpont megelőzéséhez 23 beteg 5 éves kezelése szükséges. Az eredmények felvetik a primer prevenció elvei és célértékei átgondolásának szükségességét, valamint azt, hogy minden lipidcsökkentő kezelésben nagyobb figyelmet kellene fordítani a betegek hs-CRP szintjére.


2000 ◽  
Vol 15 (1) ◽  
pp. 2-8 ◽  
Author(s):  
N.C. Wagner ◽  
S. Ramaswamy ◽  
U. Tschirner

AbstractA pre-economic feasibility study was undertaken to determine the potential of cereal straw for industrial utilization in Minnesota. Specifically, utilizing straw for pulp and paper manufacture was of interest. The availability of cereal straw fiber supplies at various locations across the state of Minnesota, along with pre-processing issues such as transportation, harvesting, handling, and storage, are discussed and priced. The greatest economic advantage of straw for industrial use appears to be the low cost of the raw material compared to traditional raw materials. This also provides an excellent opportunity for additional income for farmers. The methodology and information provided here should be helpful in evaluating the feasibility of utilizing straw for other industrial purposes in other parts of the world. However, in some Third World countries, long-standing on-farm, traditional uses of cereal straws for fuel, fiber, and animal feed may limit their availability for industrial utilization.


Youth Justice ◽  
2011 ◽  
Vol 11 (3) ◽  
pp. 250-265 ◽  
Author(s):  
Alex Newbury

This article presents findings from in-depth, semi-structured interviews with young offenders and Victim Liaison Officers, and observations of youth offender panels. It focuses upon the attitudes of young offenders towards victims and their reactions to the prospect of meeting the victim of their offending face-to-face as part of their referral order. Significant tensions between the aspirations of restorative justice and the reality of present practice in the English system are examined. The article proposes change in relation to justice disposals for incipient young offenders, particularly in relation to the ubiquitous use of restorative justice approaches for this group.


The presence of silica in plants was first demonstrated by the analyses of De Saussure, who pointed out that the Gramineæ were particularly distinguished by the large proportion of this constituent present in their ash. Liebig, who classified plants as “silica plants,” “lime plants,” and “potash plants” according to the predominance of one or other of these constituents in their ash, in accordance with his “mineral theory,” regarded the silica as a necessary element in plant nutrition. This view led Way to introduce as a cereal manure a rocky material derived from the Upper Greensand near Farnham, which contained a considerable proportion of silicate easily soluble in acids. But when Sachs succeeded in maturing maize plants in water cultures containing no silica, whereby the proportion of silica in the ash of the mature plant was reduced from the normal 20 per cent. or so to as little as 0·7 per cent., it became evident that silica could no longer be placed in the same category as phosphoric acid and potash as essential elements of plant nutrition, and Jodin raised four successive generations of maize in water cultures without any supply of silica beyond that contained in the original seed. Other investigators again showed that the stiffness of cereal straw, which had been attributed to the presence of silica, depends on the development of the internodes under the influence of such factors as illumination and exposure.


2016 ◽  
Vol 13 (2) ◽  
pp. 253-281 ◽  
Author(s):  
JÁNOS MALINA

ABSTRACTThis article examines various eighteenth-century sources to determine whether they confirm the present practice of calling a first-floor hall of the Fertőd (Eszterháza) palace the ‘music room’. While the answer is essentially negative, we learn that the neighbouring ceremonial hall was used by Empress Maria Theresia for a banquet with some music-making in 1773, and that two more spaces on the ground floor served regularly as the ‘summer music halls’. So where did the ‘real’, quality concerts take place? A whole body of documentary evidence clearly shows that theaccademiestook place in the opera house orGrosses Theater. Much of this evidence refers to the first opera house, which burnt down in 1779. The practice apparently continued in the new, bigger 1781 opera house, but by then the number of concerts would have been reduced substantially, owing to the Prince's growing addiction to opera. A survey of Haydn's last symphonies and concertos composed for domestic use confirms that regular concerts could not have taken place later than 1783 or, possibly, 1784. However, a long-neglected remark in a contemporary witness report provides direct proof of the inclusion of symphonies in the course of opera performances.


2021 ◽  
Author(s):  
Sandra Ukaigwe

The rheological properties (yield stress and viscosity) of cereal straw suspensions are especially important in bioethanol production as they determine the mixing behaviour of the suspension during enzymatic hydrolysis. Yield stress measurements are generally difficult to perform in straw suspensions due to sedimentation, which commonly occur in the suspensions because of the difficulty encountered in loading the suspension into the measuring equipment. The process of placing the suspension in the measuring instrument causes a disturbance likely to induce the yielding of the suspension before the actual measurements are taken. Moreover cereal suspensions at high straw concentration (10-40 wt%) are soft solids and pourability is particularly difficult with solids. Rheological behavior of staw suspensions made from wheat, Oats and malt barley of fiber sizes 0.15 mm-4.20 mm (mesh sizes 20 to 100) and concentrations 5.0-15.0 wt% were studied. The suspensions were initially prepared by dispersing milled and sieved straws in distilled water at room temperature, followed by vortexing to aid the dispersion process; this was later modified to include a 30-minute de-aeration of the suspensions using vacuum and 2-minute mixing using a general purpose mixer at about 162 rpm. However, none these procedures produced a homogenous suspension. The viscosity of the dispersion medium was modified by the addition of Xanthan gum. This produced homogenous suspensions which remained suspended for about 20 minutes. The rheological properties of these suspensions were measured on a Bohlin rheometer in the controlled stress mode using a vane and cup measuring instrument, and the suspension yield stress determined by extrapolation and by regression of Herschel-Bulkley, Casson and Bingham models. Yield stress obtained from extrapolation ranged from 2-19 Pa, while model results ranged from 0.96- 8.15 Pa, for 5.0 wt% Oats straw suspensions with Xanthan gum strengths of 0.1-0.5 wt%. Extrapolation results for 7.5 wt% Oats staw suspensions with Xanthan gum strengths of 0.1-0.5 wt% ranged from 20-36 Pa while model results were in the range of 4.38-18.76 Pa. Wheat and malt barely straw suspensions evaluated using Herschel-Bulkley model at similiar Oats straw suspension conditions of 5.0 wt% fiber concentration with 0.3 wt% Xanthan gum strength produced statistically equivalent yields stress to Oats straw suspensions in the range of 2.31-4.04 Pa for fibers of mesh size 40-100. Cereal straw suspenions are non-Newtonian fluids with yield stresses that are highly straw concentration dependent.


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