Nucleation stage in supersaturated vapor with inhomogeneities due to nonstationary diffusion onto growing droplets

An analytical description of nucleation stage in a supersaturated vapor with instantly created supersaturation is given with taking into account the vapor concentration inhomogeneities arising as a result of depletion due to non-stationary diffusion onto growing droplets. This description suggests that the intensity of the nucleation of new droplets is suppressed in spherical diffusion regions of a certain size surrounding previously nucleated droplets, and remains at the initial level in the remaining volume of the vapor-gas medium. The value of volume excluded from nucleation depends on the explicit form of the vapor concentration profile in the space around the growing droplet, and we use for that the unsteady self-similar solution of time-dependent diffusion equation with a convective term describing the flow of the gas-vapor mixture caused by moving surface of single growing droplet. The main characteristics of the phase transition at the end of the nucleation stage are found and compared with those in the theory of nucleation with homogeneous vapor consumption (the theory of mean-field vapor supersaturation).Comment: This work was presented on Research Workshop 'Nucleation Theory and Applications' (Dubna, Russia) in 2013. The paper submitted to Physica A journa

Fostering Bibliodiversity in Scholarly Communications: A Call for Action!

Diversity is an important characteristic of any healthy ecosystem, including scholarly communications. Diversity in services and platforms, funding mechanisms, and evaluation measures will allow the scholarly communication system to accommodate the different workflows, languages, publication outputs, and research topics that support the needs and epistemic pluralism of different research communities. In addition, diversity reduces the risk of vendor lock-in, which inevitably leads to monopoly, monoculture, and high prices. Bibliodiversity has been in steady decline for decades.1 Far from promoting diversity, the dominant “ecosystem” of scholarly publishing today increasingly resembles what Vandana Shiva (1993) has called the “monocultures of the mind”2, characterized by the homogenization of publication formats and outlets that are largely owned by a small number of multinational publishers who are far more interested in profit maximization than the health of the system. Yet, a diverse scholarly communications system is essential for addressing the complex challenges we face. As we transition to open access and open science, there is an opportunity to reverse this decline and foster greater diversity in scholarly communications; what the Jussieu Call refers to as bibliodiversity3. Bibliodiversity, by its nature, cannot be pursued through a single, unified approach, however it does require strong coordination in order to avoid a fragmented and siloed ecosystem. Building on the principles outlined in the Jussieu Call, this paper explores the current state of diversity in scholarly communications, and issues a call for action, specifying what each community can do individually and collectively to support greater bibliodiversity in a more intentional fashion

Key Aspects and Approaches of Open Access, Open Data and Open Science

Overview of the key aspects and approaches to open access, open data and open science, emphasizing on sharing scientific knowledge for sustainable progress and development.The autumn training school Development and Promotion of Open Access to Scientific Information and Research is organized in the frame of the Fourth International Conference on Digital Presentation and Preservation of Cultural and Scientific Heritage—DiPP2014 (September 18–21, 2014, Veliko Tarnovo, Bulgaria, http://dipp2014.math.bas.bg/), organized under the UNESCO patronage. The main organiser is the Institute of Mathematics and Informatics, Bulgarian Academy of Sciences with the support of EU project FOSTER (http://www.fosteropenscience.eu/) and the P. R. Slaveykov Regional Public Library in Veliko Tarnovo, Bulgaria

Policy Framework and Roadmap for Open Access, Open Research Data and Open Science

Overview of the growth of policies and a critical appraisal of the issues affecting open access, open data and open science policies. Example policies and a roadmap for open access, open research data and open science are included.The autumn training school Development and Promotion of Open Access to Scientific Information and Research is organized in the frame of the Fourth International Conference on Digital Presentation and Preservation of Cultural and Scientific Heritage—DiPP2014 (September 18–21, 2014, Veliko Tarnovo, Bulgaria, http://dipp2014.math.bas.bg/), organized under the UNESCO patronage. The main organiser is the Institute of Mathematics and Informatics, Bulgarian Academy of Sciences with the support of EU project FOSTER (http://www.fosteropenscience.eu/) and the P. R. Slaveykov Regional Public Library in Veliko Tarnovo, Bulgaria

Open Access, Equity and Strong Economy in Developing and Transition Countries: Policy Perspective

Since January 2007 Ukraine has a law mandating open access to publicly funded research. Most of the Parliament members supported it. And it is already the second parliamentary inquiry mandating the Cabinet of Ministers to take actions on creating favourable conditions for developing open access repositories in archives, libraries, museums, scientific and research institutions with open access condition to publicly funded research. Nevertheless bottom-up approaches of Ukrainian Universities and research centres as well as political support from the principle legislative body in the country have still not resulted into a network of well-functioning institutional repositories. The article highlights recent open access developments and presents the lists of open access benefits for the countries and regions

Otvoreni pristup: kako povećati vidljivost i uticaj istraživanja u Bosni i Hercegovini

This article talks about open access of scientific publications, creation of OA journals and OA repositories through examples from Bosnia and Herzegovina. With the explanation what is Open Access and how to provide it, the paper gives instructions on how to create an institutional OA repository in nine steps, as well as to read Open Access policy.Ovaj rad govori o slobodnom pristupu naučnoj građi, kreiranju OA časopisa i OA repozitorija kroz primjere iz Bosne i Hercegovine. Uz objašnjenje šta je slobodan pristup i kako ga obezbjediti, u radu se daju upute kako kreirati institucionalni OA repozitorij u devet koraka, te se može vidjeti i polisa slobodnog pristupa

Otvoreni pristup: kako povećati vidljivost i uticaj istraživanja u Bosni i Hercegovini

This article talks about open access of scientific publications, creation of OA journals and OA repositories through examples from Bosnia and Herzegovina. With the explanation what is Open Access and how to provide it, the paper gives instructions on how to create an institutional OA repository in nine steps, as well as to read Open Access policy.Ovaj rad govori o slobodnom pristupu naučnoj građi, kreiranju OA časopisa i OA repozitorija kroz primjere iz Bosne i Hercegovine. Uz objašnjenje šta je slobodan pristup i kako ga obezbjediti, u radu se daju upute kako kreirati institucionalni OA repozitorij u devet koraka, te se može vidjeti i polisa slobodnog pristupa