EDITORIAL PREFACE Fifty years of publishing scientific papers is an im- pressive record – one that we at the journal Materials and Technology are not unreasonably proud. I like to think that our success is down to an ability to adapt, to move with the times, but not always to follow convention. Since I took over the job of the Editor in Chief last year we have introduced some important changes, most not- able an end to publishing purely technical papers. Such papers, while both interesting and useful to a small num- ber of specialists, tend not to appeal to a wider audience of materials and technology researchers and so reduce the impact of the journal on its target audience. In keeping with the ethos of my predecessor Matja` Torkar, who was Editor in Chief from 2012 to 2016, I will be trying to publish exciting papers from scientists who are making a mark with new research techniques, new applications and new materials. A good example in this latest issue is the paper entitled Molecular dynamics simulations of plastic deformation of metallic surfaces by Nu{a Puk{i~ and her colleagues, who are reporting on the behavior of surfaces at the atomic level. Of course, the journal will continue to publish more conventional, high-quality research on metallic materials, polymers, biomaterials and relevant technologies. However, we will not be acting a repository for stale research that lacks relevance and fails to attract the interest of researchers. It is very likely that as we raise standards the number of rejected manuscripts will increase, and I understand it is not a pleasant experience to have your paper rejected by a journal. But authors have to understand that the journal cannot publish every article that it receives, and the fairest way to select the articles for publication is through a review process that considers factors like relevance, excellence, innovation, and wider impact. We also consider how well previous publications by the authors have been cited, and use this as a guideline for the relevance of their research. Starting next year, the first issue of Materials and Technology will publish the best papers presented at the annual (this year it is the 25th Anniversary) ICM&T Conference, which in 2017 will be held in Portoro` from the 16th to the 19th of October. In previous years we spread these papers throughout all 6 issues, but in order to highlight the work presented at this important materials-related event we have decided to showcase the best of the conference in a single issue. Dr. Paul McGuiness PREDGOVOR UREDNIKA Petdeset let izdajanja znanstvenih ~lankov je zelo lepo obdobje, na kar smo pri reviji Materiali in tehno- logije lahko upravi~eno ponosni. Sam sem mnenja, da je uspeh revije ta, da je sposobna prilagajanja, da gre v korak s ~asom na podro~ju, ki ga pokriva. Odkar sem lansko leto prevzel urednikovanje revije, smo predstavili nekatere pomembne spremembe, med drugim tudi ukinitev objavljanja strokovnih ~lankov. Tovrstni ~lanki so sicer zanimivi in koristni manj{emu {tevilu strokov- njakov, ne dose`ejo pa {ir{e skupine raziskovalcev na podro~ju materialov in tehnologij ter tako vplivajo na zmanj{evanje faktorja vpliva pri ciljni skupini. Pri ohranjanju etike mojega predhodnika na tem mestu, dr. Matja`a Torkarja, ki je bil urednik revije med 2012 in 2016, si bom prizadeval, da bodo v reviji objavljeni zanimivi ~lanki raziskovalcev, ki s svojim delom predstavljajo nove raziskovalne tehnike, nove aplikacije in nove materiale. Dober primer tak{nega je ~lanek Nu{e Puk{i~ in njenih sodelavcev v tej {tevilki revije z naslovom Molecular dynamics simulations of plastic deformation of metallic surfaces, ki poro~ajo o obna{anju povr{in na atomskem nivoju. Seveda bo revija tudi v prihodnje stremela k objavljanju bolj konvencio- nalnih, visokokvalitetnih raziskav na podro~ju kovinskih materialov, polimerov, biomaterialov in sorodnih tehno- logij. Skratka, revija ne bo zbirala ~lankov z zastarelimi raziskavami, ki niso primerni in ne dosegajo zanimanja raziskovalcev dana{njega ~asa. Zelo verjetno je, da ko bomo dvignili standard, se bo {tevilo zavrnjenih rokopisov {e pove~alo. Razumemo tudi, da ni prijetno, ko je ~lanek pri kak{ni reviji za- vrnjen. Avtorji morajo razumeti, da revija ne bo objav- ljala vseh prejetih ~lankov. Najbolj{i in najbolj korekten na~in izbire ~lankov za objavo je recenziranje ~lankov, kjer se upo{teva ustreznost, odli~nost in {ir{i vpliv, ki ga ima ~lanek na {ir{o publiko. Upo{tevamo pa tudi, kako pogosto so bila predhodna objavljanja avtorjev citirana in to uporabimo kot smernico za pomembnost njihovih raziskav. S pri~etkom v naslednjem letu bodo v prvi {tevilki revije Materiali in tehnologije objavljeni najbolj{i ~lanki, predstavljeni na letni konferenci o Materialih in tehno- logijah, ki bo v letu 2017 od 16. do 17. oktobra potekala v Portoro`u. V prej{njih letih smo ~lanke objavljali od {tevilke do {tevilke, ker pa `elimo poudariti dela pred- stavljena na tem pomembnem dogodku, ki bo letos `e 25. po vrsti, smo se odlo~ili predstaviti najbolj{e iz konference v eni {tevilki. Dr. Paul McGuiness Materiali in tehnologije / Materials and technology 51 (2017) 1, 3 3 MATERIALI IN TEHNOLOGIJE/MATERIALS AND TECHNOLOGY (1967-2017) – 50 LET/50 YEARS