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The purpose of this paper is to solve a post-disaster humanitarian logistics problem in which medical assistance teams are dispatched and the relief supplies are distributed among demand points.

A mixed integer-programming model and a two-stage hybrid metaheuristic method are developed to solve the problem. Problem instances of various sizes as well as a numerical example based on the 2016 Kyushu Earthquake in Japan are used to test the proposed model and algorithm.

Computational results based on comparisons with the state-of-the-art commercial software show that the proposed approach can quickly find near-optimal solutions, which is highly desirable in emergency situations.

Real data of the parameters of the model are difficult to obtain. Future collaborations with organizations such as Red Cross and Federal Emergency Management Agency can be extremely helpful in collecting data in humanitarian logistics research.

The proposed model and algorithm can help governments and non-governmental organizations (NGOs) to effectively and efficiently allocate and coordinate different types of humanitarian relief resources, especially when these resources are limited.

This paper is among the first ones to consider both medical team scheduling (routing) and relief aid distribution as decision variables in the humanitarian logistics field. The contributions include developing a mathematical model and a heuristic algorithm, illustrating the model and algorithm using a numerical example, and providing a decision support tool for governments and NGOs to manage the relief resources in disasters.

A new design framework for crossover operator is proposed based on the commonality concept. In the reproduction process the resulting hybrid crossover operator includes a local search scheme aiming to improve the genetic characteristics of the offspring. Commonality suggests that search should be driven in the neighbourhood of parents, and local optimisers can drive this search. The ranking of the offspring candidates is based on a local fitness function using approximations and appropriated heuristics linked to the structural optimisation problem. The goal of this approach is to identify and preserve the common schema of the two parents responsible for their high‐observed fitness. The proposed hybrid crossover operator is embedded into a genetic algorithm supported by an elitist strategy and its performance is compared with the parametrised uniform crossover.

The purpose of this paper is to numerically analyze the stagnation point flow of Cu-Al2O3/water hybrid nanofluid with mixed convection past a flat plate and circular cylinder.

The similarity equations that reduced from the boundary layer and energy equations are solved using the bvp4c solver. The duality of solutions is observed within the specific range of the control parameters, namely, mixed convection parameter λ, curvature parameter γ and nanoparticles volumetric concentration ϕ1 for alumina, while for copper ϕ2. The stability analysis is also designed to justify the particular solutions’ stability. Additionally, the idea to obtain the solution for large value of λ and γ is also presented in this paper.

Two solutions exist in opposing and assisting flows up to a critical value λc where λc lies in the opposing region. An upsurge of the curvature parameter tends to extend the critical value (delay the separation process), whilst increase the heat transfer performance of the working fluid. Meanwhile, the application of hybrid Cu-Al2O3/water nanofluid also can decelerate the separation of laminar boundary layer flow and produce higher heat transfer rate than the Cu–water nanofluid and pure water.

The results are new and original. This study benefits to the other researchers, specifically in the observation of the fluid flow characteristics and heat transfer rate of the hybrid nanofluid. Also, this paper features with the mathematical formulation for the solution with large values of λ and γ.

The purpose of this paper is to study the 2D hybrid linear model, which is a method of describing both continuous‐ and discrete‐time dynamics in one system. Singularity of 2D hybrid linear models is a newly occurred problem and a very important question is how to compute the solution of the singular 2D hybrid linear model.

Computation of the solution of mentioned system is based on Laplace transform, Z‐transform and shifting algorithm. The inverse Laplace transform and inverse Z‐transform are used in two cases.

In this paper, a class of 2D singular hybrid linear systems is introduced. Two methods for computation of solutions of the singular hybrid system with nonzero boundary conditions are proposed. Both methods are illustrated by the examples.

Presented methods are a new way for computing the solution of singular 2D hybrid linear systems.

Distributed trust technologies, such as blockchain, propose to permit peer-to-peer transactions without trusted third parties. Yet not all implementations of such technologies fully decentralize. Information professionals make strategic choices about the level of decentralization when implementing such solutions, and many organizations are taking a hybrid (i.e. partially decentralized) approach to the implementation of distributed trust technologies. This paper conjectures that while hybrid approaches may resolve some challenges of decentralizing information governance, they also introduce others. To better understand these challenges, this paper aims first to elaborate a framework that conceptualizes a centralized–decentralized information governance continuum along three distinct dimensions: custody, ownership and right to access data. This paper then applies this framework to two illustrative blockchain case studies – a pilot Brazilian land transfer recording solution and a Canadian health data consent sharing project – to exemplify how the current transition state of blockchain pilots straddles both the old (centralized) and new (decentralized) worlds. Finally, this paper outlines the novel challenges that hybrid approaches introduce for information governance and what information professionals should do to navigate this thorny transition period. Counterintuitively, it may be much better for information professionals to embrace decentralization when implementing distributed trust technologies, as hybrid models could offer the worst of both the centralized and future decentralized worlds when consideration is given to the balance between information governance risks and new strategic business opportunities.

This paper illustrates how blockchain is transforming organizations and societies by highlighting new strategic information governance challenges using our original analytic framework in two detailed blockchain case studies – a pilot solution in Brazil to record land transfers (Flores et al., 2018) and another in Canada to handle health data sharing consent (Hofman et al., 2018). The two case studies represent research output of the first phase of an ongoing multidisciplinary research project focused on gaining an understanding of how blockchain technology generates organizational, societal and data transformations and challenges. The analytic framework was developed inductively from a thematic synthesis of the findings of the case studies conducted under the auspices of this research project. Each case discussed in detail in this paper was chosen from among the project's case studies, as it represents a desire to move away from the old centralized world of information governance to a new decentralized one. However, each case study also represents and embodies a transition state between the old and new worlds and highlights many of the associated strategic information governance challenges.

Decentralization continues to disrupt organizations and societies. New emerging distributed trust technologies such as blockchain break the old rules with respect to the trust and authority structures of organizations and how records and data are created, managed and used. While governments and businesses around the world clearly see value in this technology to drive business efficiency, open up new market opportunities and create new forms of value, these advantages will not come without challenges. For information executives then, the question is not if they will be disrupted, but how. Understanding the how as will be discussed in this paper provides the business know how to leverage the incredible innovation and transformation that decentralized trust technology enables before being leapfrogged by another organization. It requires a change of mindset to consider an organization as one part of a broader ecosystem, and for those who successfully do so, this paper views this as a strategic opportunity for those responsible for strategic information governance to design the future instead of being disrupted by it.

This paper presents a novel analytic framework for strategic information governance challenges as we transition from a traditional world of centralized records and information management to a new decentralized world. This paper analyzes these transitions and their implications for strategic information governance along three trajectories: custody, ownership and right to access records and data, illustrating with reference to our case studies.

This paper predicts a large number of organizations will miss the opportunities of the new decentralized trust world, resulting in a rather major churning of organizations, as those who successfully participate in building the new model will outcompete those stuck in the old world or the extremely problematic hybrid transition state. Counterintuitively, this paper argues that it may be much less complex for information executives to embrace decentralization as fast as they can, as in some ways the hybrid model seems to offer the worst of both the centralized and future decentralized worlds with respect to information governance risks.

This paper anticipates broader societal consequences of the predicted organization churn, in particular with respect to uncertainty about the evidence that records provide for public accountability and contractual rights and entitlements.

Decentralized trust technologies, such as blockchain, permit peer-to-peer transactions without trusted third parties. Of course, such radical shifts do not happen overnight. The current transition state of blockchain pilots straddles both the old and new worlds. This paper presents a theoretical framework categorizing strategic information governance challenges on a spectrum of centralized to decentralized in three primary areas: custody, ownership and right to access records and data. To illustrate how decentralized trust is transforming organizations and societies, this paper presents these strategic information governance challenges in two blockchain case studies – a pilot Brazilian land transfer recording solution and a Canadian health data consent sharing project. Drawing on the theoretical framework and case studies, this paper outlines what information executives should do to navigate this thorny transition period.

Hybrid cloud composing of public and private cloud is seen as a solution for storage of health care data characterized by many private and sensitive data. In many hybrid cloud-based solutions, the data are perturbed and kept in public cloud, and the perturbation credentials are kept in private cloud.

Hybrid cloud is a model combing private and public cloud. Security for the data is enforced using this distribution in hybrid clouds. However, these mechanisms are not efficient for range query and retrieval of data from cloud. In this work, a secure and efficient retrieval solution combining K-mean clustering, geometric perturbation and R-Tree indexing is proposed for hybrid clouds.

Compared to existing solution, the proposed indexing on perturbed data is able to achieve 33% reduced retrieval time. The security of indexes as measured using variance of differences was 66% more than existing solutions.

This study is an attempt for efficient retrieval of data with range queries using R-Tree indexing approach.

This study examines the impact of customer involvement (CI), technology strategy, firm internationalization and servitization on product and service innovation performance (SIP) in hybrid offerings. In addition, it investigates the moderating role of digitization and co-creation in the relationship mentioned above.

A research framework was developed through the lens of service-dominant (S-D) logic theory, and the proposed research hypotheses were empirically tested. Primary data were collected via the survey method, and structural equation modeling was used to analyze the data.

Findings of this study suggest that the S-D logic theory effectively explains CI and servitization in hybrid offerings. Furthermore, digitization is a crucial driver of SIP. Additionally, this paper finds that co-creation moderates between servitization and innovation performance of hybrid offerings.

Besides theoretical contributions, this study presents valuable insights to manage service networks during servitization.

First, this work proposes a comprehensive framework of hybrid offerings' driving factors (i.e. CI, firm internationalization, technology strategy and servitization) and their impact on product and SIP. Second, it tests the moderating effects of digitalization and co-creation in the context of hybrid offerings.

The purpose of this paper is to identify interdependent barriers to the search and selection of new technologies by design engineers at industry, organisation and individual levels. A “proof of concept” HyCon tool is presented to demonstrate the role of information technology design support tools in supporting designers to overcome these inhibitors, in this case for hybrid concrete, by providing immersive and interactive, information‐rich environments to explore design solutions.

The HyCon tool was developed through a prototyping methodology encompassing a testing, analysis, design and coding iterative cycle. This was supported by case studies and industry workshops.

The results of a collaborative research project are presented, which describes the HyCon design support tool to promote the understanding and use of hybrid concrete in structural frames. This tool is built around a knowledge creation, application, storage, and retrieval cycle to envision and support the use of this new technology.

This paper fulfils an identified need to integrate technology management and design process considerations within the context of an information technology design support tool, and offers a “proof of concept” HyCon tool to demonstrate key issues and potential utilities and applications.

This study examines unexplored horizontal accountability types between public, private and third sector actors within a hybrid organization. The case organization was applying a novel alliance model to generate service paths for heterogeneous clientele consuming cultural, educational, health and social services. It was first to do so in Finland.

This research is on a case study that used documents and interviews to examine the design of the horizontal accountability. The descriptive analysis focused on identifying what type of formal accountability system was designed (i.e. who is the account holder, and who is accountable and for what and why).

An imbalanced accountability system was identified because accountability obligations were unevenly distributed between public, private and third sector actors. The private sector was the most accountable for performance, and the third sector (i.e. voluntary sector) was the least accountable. As account holders, the public, private and third sector actors were judging their conduct as account providers. This created a biased horizontal accountability system. The hybrid's accountability system was dynamic because the contracts made to establish the hybrid included opportunities to change horizontal accountability if future changes to the external environment affect too drastically the potential to achieve the hybrid's goals.

Three new concepts are proposed for studying dysfunctional accountability systems: dynamic, biased and horizontally imbalanced accountability.

Future places for learning and working are digitally and physically integrated hybrid environments. The purpose of this paper is to analyse the co-creation process of the remote presence-based digital and physical co-working and co-learning place. The context is cross-cultural when Finnish space approach is applied and further developed in Namibia.

A qualitative case study is conducted of the Future Tech Lab (FT Lab) in the University of Namibia’s main campus. The case study of the FT Lab is about 200m² space with three different zones in the University of Namibia’s main campus. The physical solution encourages collaboration and technical solutions interlink the place overseas by using the remote presence. The data are gathered by using document analysis, observations, participatory workshops and interviews including structured questionnaire.

The action design research approach is a functional framework to co-create hybrid environments in two ways. It helps to design digital and physical solutions as integrated entity. Additionally, it provides a tool to analyse decision-making processes as well as design initiatives, also from the cultural perspective. Both Finnish and Namibian cultures are normative and feminine, which helped the realisation of the project based on mutual trust. However, the differences in power distance were affecting the process fluency and decision-making processes.

The findings indicate that the co-design of the hybrid-learning environment sets requirements for the physical solution such as surface materials for premises and retrofitting of technology, which need to be considered by co-creation from the shared vision to realisation of the space. The co-creation involves many stakeholders, and cultural differences have a different impact on various stages of the co-creation process.

The cultural context in the case study provides an interesting comparison between the Finnish and Namibian approach. The remote presence and its requirements provide new knowledge and guidelines for co-creation of hybrid environments.