Emerging Organizations: Metateams in Major IT Projects

During the last decade, teams working on information technology (IT) development and implementation projects have experienced significant transformations. Nowadays, many members of project teams are working in new and complex organisational arrangements seeded with conflicts. Their firms, pushed by the competitive race and/or regulators, want to implement new IT solutions at frantic speeds while often maintaining old management practices without recognising the new paradigm’s unique needs and nature. This paper focuses in one of these new organisations, the metateam. Metateams are emergent temporal virtual organizations engaged in complex multimillion dollar IT projects. These confederations of networked teams can build IT solutions of high complexity by integrating and capitalizing on expertise from different fields across firms and national borders. However, achieving effective interteam collaboration presents significant challenges. The failure to make sense of the new paradigm results in cost and schedule overruns and has high destructive potential for interfirm relationships. Our theory-building study detected a costly pattern of constant conflict discovery, resolution and realignment. From the analysis of this pattern, this paper presents a theoretical model, grounded on rich empirical data, interrelating key concepts of cost, contract discrepancies, conflict, communication and trust

From Project Management to Program Management: An Invitation to Investigate Programs Where IT Plays a Significant Role

Information technology is an inherent component of major change initiatives that organizations undertake. However, the increasing technological complexity involved in achieving the benefits of these change initiatives means that organizations must substantially revise management policies and procedures to create and deploy information technology across multiple functional areas and longer time horizons. Industries, governments, professional societies, and early researchers consider prior management practices inadequate and are moving toward practices that promote the integration of multiple functions, projects, environments, and stakeholders to best achieve the benefits of the chosen change. In this editorial, we discuss previous research, highlight key findings, and raise questions about the process of managing multiple projects in change initiatives that contain significant information technology—also known as program management

Is there such a thing as agile IT program management?

This paper presents early evidence of agile methods in IT enabled transformational programs of high strategic significance and substantial complexity in large organisations. Based on interviews of top management, and program and project managers, we discuss the key drivers that lead to agile IT enabled programs and some of the barriers encountered while managing IT enabled programs in an agile manner. In addition to the need for fast response to environmental changes, strong IT-business collaboration, and efficient resource use by minimising governance burden, we found that organisations are adopting agile practices in program management as transitory step towards achieving enterprise agility. In doing so agile and non-agile projects co-exist within a program thus creating new coordination challenges. Programs with high degree of agile methods adoption face similar challenges in coordinating with the rest of the organisation which operates in non-agile manner. The paper aims to contribute to fostering scholarly discussion on implementation of agile practices in major projects and programs, an emerging area of research with scarce academic literature

The shifting sand of program coordination effort: lessons from IT-enabled transformation programs

Set in the context of an Australian software vendor for a global enterprise product, this paper explores the roles and practices that have evolved as the company scales from its already well established agile software teams, to agility at the enterprise level. With a focus on roles and practices at the program level within a Disciplined Agile Delivery framework, this study adds to the limited body of research into the process and impact of scaled agile approaches in software vendor environments

Mechanical unfolding of RNA hairpins

Mechanical unfolding trajectories, generated by applying constant force in optical tweezer experiments, show that RNA hairpins and the P5abc subdomain of the group I intron unfold reversibly. We use coarse-grained Go-like models for RNA hairpins to explore forced-unfolding over a broad range of temperatures. A number of predictions that are amenable to experimental tests are made. At the critical force the hairpin jumps between folded and unfolded conformations without populating any discernible intermediates. The phase diagram in the force-temperature (f,T) plane shows that the hairpin unfolds by an all-or-none process. The cooperativity of the unfolding transition increases dramatically at low temperatures. Free energy of stability, obtained from time averages of mechanical unfolding trajectories, coincide with ensemble averages which establishes ergodicity. The hopping time between the the native basin of attraction (NBA) and the unfolded basin increases dramatically along the phase boundary. Thermal unfolding is stochastic whereas mechanical unfolding occurs in "quantized steps" with great variations in the step lengths. Refolding times, upon force quench, from stretched states to the NBA is "at least an order of magnitude" greater than folding times by temperature quench. Upon force quench from stretched states the NBA is reached in at least three stages. In the initial stages the mean end-to-end distance decreases nearly continuously and only in the last stage there is a sudden transition to the NBA. Because of the generality of the results we propose that similar behavior should be observed in force quench refolding of proteins.Comment: 23 pages, 6 Figures. in press (Proc. Natl. Acad. Sci.

Forced-unfolding and force-quench refolding of RNA hairpins

Using coarse-grained model we have explored forced-unfolding of RNA hairpin as a function of $f_S$ and the loading rate ($r_f$). The simulations and theoretical analysis have been done without and with the handles that are explicitly modeled by semiflexible polymer chains. The mechanisms and time scales for denaturation by temperature jump and mechanical unfolding are vastly different. The directed perturbation of the native state by $f_S$ results in a sequential unfolding of the hairpin starting from their ends whereas thermal denaturation occurs stochastically. From the dependence of the unfolding rates on $r_f$ and $f_S$ we show that the position of the unfolding transition state (TS) is not a constant but moves dramatically as either $r_f$ or $f_S$ is changed. The TS movements are interpreted by adopting the Hammond postulate for forced-unfolding. Forced-unfolding simulations of RNA, with handles attached to the two ends, show that the value of the unfolding force increases (especially at high pulling speeds) as the length of the handles increases. The pathways for refolding of RNA from stretched initial conformation, upon quenching $f_S$ to the quench force $f_Q$, are highly heterogeneous. The refolding times, upon force quench, are at least an order of magnitude greater than those obtained by temperature quench. The long $f_Q$-dependent refolding times starting from fully stretched states are analyzed using a model that accounts for the microscopic steps in the rate limiting step which involves the trans to gauche transitions of the dihedral angles in the GAAA tetraloop. The simulations with explicit molecular model for the handles show that the dynamics of force-quench refolding is strongly dependent on the interplay of their contour length and the persistence length, and the RNA persistence length.Comment: 42 pages, 15 figures, Biophys. J. (in press

Cholangiocarcinoma: Epidemiology and risk factors

Cholangiocarcinoma (CCA) is a heterogeneous disease arising from a complex interaction between host-specific genetic background and multiple risk factors. Globally, CCA incidence rates exhibit geographical variation, with much higher incidence in parts of the Eastern world compared to the West. These differences are likely to reflect differences in geographical risk factors as well as genetic determinants. Of note, over the past few decades, the incidence rates of CCA appear to change and subtypes of CCA appear to show distinct epidemiological trends. These trends need to be interpreted with caution given the issues of diagnosis, recording and coding of subtypes of CCA. Epidemiological evidences suggest that in general population some risk factors are less frequent but associated with a higher CCA risk, while others are more common but associated with a lower risk. Moreover, while some risk factors are shared by intrahepatic and both extrahepatic forms, others seem more specific for one of the two forms. Currently some pathological conditions have been clearly associated with CCA development, and other conditions are emerging; however, while their impact in increasing CCA risk as single etiological factors has been provided in many studies, less is known when two or more risk factors co-occur in the same patient. Moreover, despite the advancements in the knowledge of CCA aetiology, in Western countries about 50% of cases are still diagnosed without any identifiable risk factor. It is therefore conceivable that other still undefined etiologic factors are responsible for the recent increase of CCA (especially iCCA) incidence worldwide

Socioeconomic Inequalities in Mortality Rates in Old Age in the World Health Organization Europe Region

Socioeconomic adversity is among the foremost fundamental causes of human suffering, and this is no less true in old age. Recent reports on socioeconomic inequalities in mortality rate in old age suggest that a low socioeconomic position continues to increase the risk of death even among the oldest old. We aimed to examine the evidence for socioeconomic mortality rate inequalities in old age, including information about associations with various indicators of socioeconomic position and for various geographic locations within the World Health Organization Region for Europe. The articles included in this review leave no doubt that inequalities in mortality rate by socioeconomic position persist into the oldest ages for both men and women in all countries for which information is available, although the relative risk measures observed were rarely higher than 2.00. Still, the available evidence base is heavily biased geographically, inasmuch as it is based largely on national studies from Nordic and Western European countries and local studies from urban areas in Southern Europe. This bias will hamper the design of European-wide policies to reduce inequalities in mortality rate. We call for a continuous update of the empiric evidence on socioeconomic inequalities in mortality rate