Lactic acidosis occurrence during exercises in the smoke chamber in a 53-year-old firefighter with no significant medical history

Lactic acidosis is a form of metabolic acidosis with a high anion gap, reduced rate of arterial blood pH under 7.35 mmol/l, and lactic acid concentration over 7 mmol/l. In the literature we can find some descriptions of the cases of lactic acidosis in patients with severe systemic diseases (cancer, acquired immunodeficiency syndrome, sepsis, diabetes with cardiovascular disease and after organ transplantations). We present the case of lactic acidosis in a patient with no chronic disease - a firefighter in whom lactic acidosis has developed during standard exercises in the smoke chamber

Practical aspects of Mixolab application in the determination of quality of wheat and rye cultivated in Poland

Celem pracy było określenie zróżnicowania właściwości reologicznych ciasta ze śruty pszennej i żytniej za pomocą Mixolabu. Stwierdzono, że śruta żytnia cechowała się większą wodochłonnością, krótszym czasem rozwoju i stałości oraz krótszym czasem kleikowania skrobi niż śruta pszenna. Śruta żytnia wykazywała większy opór ciasta w punkcie C2 w wyniku obecności pentozanów, które powodowały zwiększenie lepkości ciasta. Istotne zależności wykazano między liczbą opadania a podatnością na działanie enzymów amylolitycznych (C4) i retrogradacją (C5).The aim of this study was the determination of differentiation of rheological properties of wheat and rye dough tested by Mixolab. Whole rye meal was characterized by higher water absorption, shorter development time, stability and shorter time of starch gelatinization in comparison with than whole wheat meal. Whole rye meal had higher torque in point C2 as a result of pentosans presence, which caused the increase of dough viscosity. The significant correlations between falling number and enzymatic activity (C4) and retrogradation (C5) were shown

Difference functional inequalities and applications

The paper deals with the difference inequalities generated by initial boundary value problems for hyperbolic nonlinear differential functional systems. We apply this result to investigate the stability of constructed difference schemes. The proof of the convergence of the difference method is based on the comparison technique, and the result for difference functional inequalities is used. Numerical examples are presented

Evaluation of amylolitic activity of wheat grain using mixolab

W przedstawionej w artykule pracy badawczej określano aktywność enzymów amylolitycznych w ziarnie pszenicy poprzez ocenę liczby opadania oraz parametrów uzyskiwanych za pomocą aparatu mixolab. Materiał doświadczalny stanowiły próbki ziarna pszenicy ze zbiorów z lat 2008-2011. Badane próbki ziarna pszenicy charakteryzowały się zróżnicowaną aktywnością enzymów amylolitycznych, o czym świadczy liczba opadania w zakresie od 62 do 455 s. Ziarno pszenicy o niższej aktywności enzymów amylolitycznych cechowało się wyższymi wartościami parametrów uzyskanych za pomocą aparatu mixolab i charakteryzujących właściwości skrobi: oporem ciasta w punktach C3 (r = 0,810), C4 (r = 0,930) i C5 (r = 0,921) wykresu oraz większym wskaźnikiem β (r = 0,633).In this study the alpha-amylase activity of wheat grain by falling number method and Mixolab test were determined. Wheat grain samples from 2008-2011 harvests were tested. Alpha-amylase activity of wheat grain sample determined by falling number method was differentiated – falling number was in the range 62-455 s. Wheat grain with lower alphaamylase activity was characterized by higher Mixolab parameters related to starch pasting properties: torque value in point C3 (r = 0,810), C4 (r = 0,930) i C5 (r = 0,921) and higher slope β (r = 0,633)

Changes in bread making quality of wheat during postharvest maturations

The purpose of this study was to determine the changes in bread making quality for three wheat cultivars during their postharvest grain maturation phase. Grain samples were collected immediately after harvest in two consecutive years. Over the next 12 weeks the changes of the technological value of grains were determined. The wheat cultivars were characterized by varying quality in terms of the properties of gluten proteins. Changes to the baking value of grains which occur during their postharvest maturation phase were dependent on the cultivar and harvest year: the amount of wet gluten present decreased slightly in all tested cultivars, whereas the quality of the gluten improved. The greatest changes in the gluten index occurred for cv. Bamberka in both harvest years as a result of its low initial value – below 80%. The greatest improvement in alveograph properties was found for wheat cultivars with a lower baking value which was determined just after harvest. A slight increase in the water absorption of the flour was observed, as well as slight increases in bread yield and bread crumb hardness. Grain processors should expect an improvement in the baking value “W” and dough tenacity “P” of grain after its post-maturation phase in comparison with the quality values determined just after harvest

Discrete and continuous fractional persistence problems – the positivity property and applications

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