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				Kem. Ind. Volume: 69 No: 11-12 Year:2020 Pages: 595–733 Number of scientific/professional papers: 8 Number of other articles: 29  | 
			
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						Prediction of the Bicarbonate Amount in Drinking Water in the Region of Médéa Using Artificial Neural Network Modelling
						  H. Tahraoui,  A. E. Belhadj and  A. E. Hamitouche 
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					595–602 | 
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						Properties of Waste Polyamide Powder and Titanium Dioxide Nanocomposites
						  D. Šubarić,  A. Lončarević,  Z. Buhin Šturlić and  S. Lučić Blagojević 
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					603–610 | 
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						Artificial Neural Network and Support Vector Regression Applied in Quantitative Structure-property Relationship Modelling of Solubility of Solid Solutes in Supercritical CO2
						  M. Moussaoui,  M. Laidi,  S. Hanini and  M. Hentabli 
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					611–630 | 
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						The Influence of Ultrasound Cavitation on the Process of Degradation of Organic Substances in Wastewater of Pharmaceutical Production
						  U. Vashkurak,  L. Shevchuk,  I. Aftanaziv and  A. Romaniv 
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					631–638 | 
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						Relevance of an Essay by a Scientist on the Basic Laws of Human Stupidity
						   V. Šunjić 
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					639–646 | 
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						High  Performance Liquid Chromatographic Analysis of Rutin in Allium Species from Bosnia and Herzegovina 
						  M. Salihović and  E. Sofić 
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					647–651 | 
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						Soft Computing Prediction of Oil Extraction from Huracrepitan Seeds
						  K. Nwosu-Obieogu,  F. Aguele and  L. Chiemenem 
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					653–658 | 
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						Special Theory of Relativity in Chemistry
						   N. Raos 
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					659–664 | 
Opinions and Comments | |
| 665–666 | |
  N. Raos: The Culture of Lies  | 
					667 | 
  N. Raos: The Illusion of Omniscience  | 
					668 | 
  I. Čatić: Myths and Scientific Knowledge  | 
					669 | 
Let's Refresh Our Knowledge | |
  I. Radojčić Redovniković: Green Solvents  | 
					670–671 | 
Technological Notes | |
  M. Kovačić: Maybe We’re Not Alone After All  | 
					672–674 | 
Environment Protection | |
| 675–676 | |
Meetings and Events | |
| 677–679 | |
| 680 | |
Science and Industry News | |
| 681–685 | |
The History of the Croatian industry | |
| 686–688 | |
Book Reviews | |
| 689–690 | |
| 691 | |
Reviews | |
| 692–693 | |
  M. Rogošić: Where do the Chemical Engineers go? (2020)  | 
					694–699 | 
| 700 | |
| 701–702 | |
 M. Erceg and  D. Jozić: The Faculty of Chemistry and Technology in Split Celebrated Tts 60th Anniversary  | 
					703 | 
 I. Čatić,  M. Rujnić Havstad and  A. Mihajlović: From an Imaginary Plastic Product to Storage of Its Remainder  | 
					704–706 | 
Calendar Highlights | |
| 707 | |
Calendar of Events | |
| K1–K5 | |
Overview of Technical Literature and Documentation | |
| 708–710 | |
Measurement and Control | |
  N. Bolf: Turbidity Measurement  | 
					711–714 | 
Occupational Safety | |
  I. Aurer Jezerčić: Teleworking  | 
					715–717 | 
Contents and Author Index | |
  Z. Blažeković: Contents and Author Index 2020  | 
					718–733 |