Puferi u nastavi. II. Priprema i upotreba Dabić, Dario; Petrin, Damjan
Kemija u industriji; časopis kemičara i tehnologa Jugoslavije,
05/2020, Letnik:
69, Številka:
5-6
Journal Article
Recenzirano
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U ovom tekstu razmatra se kako odabrati pufer ovisno o svrsi i kako ga pripraviti, pri čemu je navedeno nekoliko načina pripremanja puferskih otopina. Uz naglašeno nužno razumijevanje konstanti ...disocijacije kiselina, čitateljima se nastoji približiti ispravan način pripremanja željenih puferskih otopina. To se ponajprije odnosi na uzimanje u obzir svih faktora koji mogu utjecati na neki puferski sustav. U tekstu se zato obrađuju važni pojmovi i povezuju s njihovim primjenama u znanstvenom i inženjerskom svijetu. Također, pojašnjava se pojam kapaciteta pufera i njegova uloga, pojam ionske jakosti te na što ona utječe. Navedena su bitna svojstva koja pufer treba imati te kako produljiti trajanje puferskih otopina. Na kraju se može provjeriti što su zapravo puferi te su dani zadatci s ciljem samostalne provjere usvojenosti rješavanja računskih zadataka.
The text discusses how to choose buffers depending on the purpose, and how to prepare them in several ways. With the necessary understanding of acid dissociation constants and buffer mechanisms, it is meant to give the readers the correct approach when preparing desired buffer solutions by taking into account all factors that may affect the buffer system. Therefore, the text covers important concepts, and links them with their applications in the world of science and engineering. It also explains buffer capacity and its role, as well as the concept of ionic strength and how it affects the pH. At the end, explanations of buffers are summarized and some numerical problems are given to enable self-evaluation of the comprehension of the given subject.
The 2nd edition of this book shows how the quality of information can be improved in such knowledge-intensive processes as on-line communication, strategy, product development, or consulting. The ...text offers proven principles for applying information quality management to a variety of information products. Case studies show how information quality management can increase satisfaction of knowledge workers and information consumers. Includes much new material.
Data Quality Olson, Jack E
2003, 2003-01-09, c2003
eBook
Data Quality: The Accuracy Dimension is about assessing the quality of corporate data and improving its accuracy using the data profiling method. Corporate data is increasingly important as companies ...continue to find new ways to use it. Likewise, improving the accuracy of data in information systems is fast becoming a major goal as companies realize how much it affects their bottom line. Data profiling is a new technology that supports and enhances the accuracy of databases throughout major IT shops. Jack Olson explains data profiling and shows how it fits into the larger picture of data quality.* Provides an accessible, enjoyable introduction to the subject of data accuracy, peppered with real-world anecdotes. * Provides a framework for data profiling with a discussion of analytical tools appropriate for assessing data accuracy. * Is written by one of the original developers of data profiling technology. * Is a must-read for any data management staff, IT management staff, and CIOs of companies with data assets.
Inhalacijski kortikosteroidi Erceg, Damir; Plavec, Davor; Turkalj, Mirjana
Medicus (Zagreb, Croatia : 1992),
12/2011, Letnik:
20, Številka:
2_Alergije
Journal Article
Recenzirano
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Inhalacijski kortikosteroidi (ICS) prva su linija terapije u liječenju kronične astme. Njihovo djelovanje na različite sastavnice procesa upale pridonosi smanjenju pojave simptoma, smanjenju ...hiperreaktivnosti dišnih putova, smanjenju potrebe za primjenom sistemskih kortikosteroida i bolničkog liječenja, poboljšava plućnu funkciju te unapređuje kontrolu bolesti i kvalitetu života. Inhalacijski kortikosteroidi jedini su osnovni lijekovi koji smanjuju smrtnost od astme. Najdjelotvorniji su lijekovi trenutačno raspoloživi u liječenju astme. Brojne studije potvrđuju njihov dugotrajni učinak u kontroli astme u djece i odraslih. ICS se razlikuju po svojim farmakokinetskim i farmakodinamskim karakteristikama te po jakosti. Klinička dobrobit ovih pripravaka uvelike nadilazi rizik od njihovih nuspojava. Potrebni su redoviti kontrolni pregledi za ranu detekciju eventualnih nuspojava.
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