bluuebunny/crossref_metadata_2025_split huggingface dataset:
On Subcool Control in Steam-Assisted-Gravity-Drainage Producers— Part I: Stability Envelopes
Authors: Irani Mazda 
Published: October 2017

Summary
Steam-assisted-gravity-drainage (SAGD) industry experience indicates that the majority of producer workovers occur because of liners or electrical submersible pumps (ESPs), and both failures appear to result from inefficient “steam-trap control.” Thermodynamic steam-trap control, also termed “subcool control,” is a typical operation strategy for most SAGD wells. Simply, subcool (or reservoir subcool vs. pump subcool) is the temperature difference between the steam chamber (or injected steam) and the produced fluid. The main objective is to keep subcool higher than a set value that varies between 0 to 40° and even higher values.
This study presents a method to calculate the liquid-pool level from the temperature profile in observation wells, and liquid-pool shrinkage as a function of time. Unfortunately, it is not practical to monitor the liquid level by having observation wells for every SAGD well pair. For this reason, the algebraic equation for liquid-pool depletion on the basis of wellbore-drawdown, subcool, and emulsion productivity is generated. By use of this equation, the envelopes are suggested to differentiate three different regimes: “stable production,” “liquid-pool depletion,” and “steam-breakthrough limit.” Gas lift operations such as the MacKay River thermal project suggested that envelopes for constant wellbore drawdown are not practical. Therefore, the steam-breakthrough limit is defined for constant rate, which is more consistent in gas lift operations. In this study, the steam-breakthrough limit is validated for operation data from the MacKay River. This study provides a new insight into how factors such as production rate and wellbore drawdown can compromise subcool control and cause steam breakthrough, and how liquid-pool depletion may result in uncontrolled steam coning at long time.
As a part of this study, a minimum-subcool concept (or target reservoir subcool) is presented as a function of skin and pressure drawdown. It is shown that the minimum subcool is highly dependent on the maturity of steam-chamber and underburden heat loss especially for zero-skin producers. The results of this work emphasize that the target subcool on the producer should increase slightly with chamber maturity, considering that the skin is nonzero for most SAGD producers.
Acid production potentials of massive sulfide minerals and lead–zinc mine tailings: a medium-term study
Authors: Çelebi Emin Ender , Öncel Mehmet Salim , Kobya Mehmet 
Published: October 2017

Abstract
Weathering of sulfide minerals is a principal source of acid generation. To determine acid-forming potentials of sulfide-bearing materials, two basic approaches named static and kinetic tests are available. Static tests are short-term, and easily undertaken within a few days and in a laboratory. In contrast, kinetic tests are long-term procedures and mostly carried out on site. In this study, experiments were conducted over a medium-term period of 2 months, not as short as static tests and also not as long as kinetic tests. As a result, pH and electrical conductivity oscillations as a function of time, acid-forming potentials and elemental contents of synthetically prepared rainwater leachates of massive sulfides and sulfide-bearing lead–zinc tailings from abandoned and currently used deposition areas have been determined. Although the lowest final pH of 2.70 was obtained in massive pyrite leachate, massive chalcopyrite leachate showed the highest titrable acidity of 1.764 g H2SO4/L. On the other hand, a composite of currently deposited mine tailings showed no acidic characteristic with a final pH of 7.77. The composite abandoned mine tailing leachate had a final pH of 6.70, close to the final pH of massive galena and sphalerite leachates, and produced a slight titrable acidity of 0.130 g H2SO4/L.
Offsetting Misstatements: The Effect of Misstatement Distribution, Quantitative Materiality, and Client Pressure on Auditors' Judgments
Authors: Messier William F. , Schmidt Martin 
Published: October 2017

ABSTRACT
This paper reports on the first experimental study to examine how materiality and client pressure affect auditors' judgments of two detected misstatements that have offsetting effects on the client's income. One hundred forty-three experienced German auditors completed a case that varied the misstatement distribution (same or different accounts), the presence or absence of client pressure, and quantitative materiality of the misstatements nested in the client pressure condition (net amount less than or greater than performance materiality). The results show: First, the distribution of the misstatements and client pressure interact. The proportion of auditors who require the client to fully adjust both misstatements is highest when the offsetting misstatements are in two different accounts and there is no client pressure. Second, misstatement distribution interacts with quantitative materiality. The proportion of auditors who deny the bonus when facing client pressure is highest when the level of materiality is greater than performance materiality and the misstatement distribution is in different accounts. Third, audit experience appears to play a role in the auditors' judgments. While more experienced auditors are more likely to fully correct the misstatements when there is no client pressure, they are also more likely to waive the misstatements when faced with client pressure. Additional experimentation confirms these findings. These results have important implications for researchers, practitioners, regulators, and standard setters.
Data Availability: The data are available from the authors upon request.
Determinants of Financial Managers' Willingness to Engage in Unethical Pro-Organizational Behavior
Authors: Mahlendorf Matthias D. , Matějka Michal , Weber Jürgen 
Published: October 2017

ABSTRACT
We examine how financial managers' willingness to engage in unethical pro-organizational behavior depends on various individual and organizational characteristics. Using survey data from 253 respondents we find that unethical pro-organizational behavior is lower when financial managers are close to retirement and when they work in high-growth or in publicly listed companies. We also find that it is positively associated with financial managers' organizational identification and with their bonuses contingent on financial performance targets but not with bonuses contingent on nonfinancial targets or subjective evaluations. We rely on a follow-up survey to reestimate the latter effects after controlling for unobserved individual heterogeneity in a changes model and find consistent results. Finally, we use another follow-up survey to compare our measure of the willingness to engage in unethical pro-organizational behavior to proxies for earnings management used in prior literature.
CORPORATE SOCIAL RESPONSIBILITY DAN AGRESIVITAS PELAPORAN KEUANGAN TERHADAP AGRESIVITAS PAJAK DENGAN GOOD CORPORATE GOVERNANCE SEBAGAI PEMODERASI (Studi pada Perusahaan Manufaktur di Bursa Efek Indonesia)
Authors: Yunistiyani Vina , Tahar Afrizal 
Published: October 2017

ABSTRAK Penelitian ini bertujuan untuk menguji pengaruh corporate social responsibility dan agresivitas pelaporan keuangan terhadap agresivitas pajak dengan good corporate governance sebagai variabel pemoderasi. Variabel Good Corporate Governance yang digunakan pada penelitian ini diproksikan dengan proporsi komisaris independen dan komite audit. Penelitian ini berfokus pada perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia tahun 20142015. Metode sampling yang digunakan adalah purposive sampling dengan sampel dari 64 perusahaan selama periode pengamatan 2 tahun berturut-turut, sehingga menghasilkan 128 sampel. Teknik analisis yang digunakan untuk pengujian adalah regresi linier berganda berbantuan aplikasi statistika SPSS 22.0. Hasil penelitian menunjukkan bahwa corporate social responsibility dan agresivitas pelaporan keuangan berpengaruh positif terhadap agresivitas pajak. Sementara itu, proporsi komisaris independen dan komite audit tidak berpengaruh dalam memoderasi hubungan agresivitas pelaporan keuangan dengan agresivitas pajak.Kata kunci: corporate social responsibility; agresivitas pelaporan keuangan; agresivitas pajak; komisaris independen; komite audit ABSTRACT This study aimed to examine the effect corporate social responsibility and financial reporting aggressiveness towards tax aggressiveness with good corporate governance as moderating variable. Good corporate governance which is proxied by board of independence commissioner proportion and audit committee. This study are focusing on manufacturing companies listed in Indonesia Stock Exchange in the period 2014-2015. The sampling method used was purposive sampling with a sample of 64 companies during the observation period of 2 years in a row so as to produce a total of 128 samples. Analysis technique used was multiple regression analysis by SPSS 22.0. The result reveal corporate social responsibility and financial reporting aggresiveness degree of tax aggresiveness. Board of independence commissioners and audit committee as the moderating variable have no influence between financial reporting aggresiveness and tax aggresiveness. Keywords: corporate social responsibility, financial reporting aggresiveness, tax aggresiveness, board of independence commissioner, audit committee
house4hack: STIMULATING TECHNICAL AND PRACTICAL INNOVATION FOR SOCIAL GOOD
Authors: Twinomurinzi Hossana , Heunis Schalk 
Published: October 2017

John Burger, the founding member of house4hack, despite his passion for social good using practical innovation, was fully aware of the cost of getting people and organizations actively involved in social enterprises. The successful electrical and electronics engineer with a number of academic (PhD and Masters – cum laude) and corporate accolades (executive in a top firm) had already been at the top of the corporate ladder. But despite the success, his stronger desire to see South Africa become a net producer of IT and technical artifacts rather than a net importer had led him to rethink his entire life strategy. After deep discussions on the merits of free and open source software development with two friends, they decided to start house4hack as a non-profit organization. The main purpose of house4hack was to provide an innovative environment, a hacker space, where members could conceptualise and create innovative technical artifacts which are well suited for the South African and African environment. The emphasis of house4hack was on making available technical equipment and working space so that members had an environment in which they could experiment and develop technical artifacts. An example of a technical artefact that emerged from house4hack is Robohand. Robohand is a mechanically driven artificial hand printed using 3D technology. Robohand has depended exclusively on donations to develop and distribute artificial hands to people who cannot afford them, such as in the war torn areas of South Sudan.
It was now three years since house4hack started. The hacker space was exciting, new ideas and opportunities kept emerging at the Tuesday meet ups where members and visitors networked and collaborated on new techniques or technology they had come across. But despite the liveliness, there were some key questions and critical decisions on John’s mind:
1.	How do we get more people involved in creating artifacts?
2.	Where do we find seed funding to support house4hack?
3.	Are we serving Africa well enough with relevant artifacts?
4.	Am I falling right back into the corporate work lifestyle trap?
Towards “Operating Within” the Field: Doctoral Students’ Views of Supervisors’ Discipline Expertise
Authors: Gube Jan , Getenet Seyum , Satariyan Adnan , Muhammad Yaar 
Published: October 2017

Aim/Purpose: This paper considers the role of supervisors’ discipline expertise in doctoral learning from a student perspective.

Background:	Doctoral students need to develop expertise in a particular field of study. In this context, developing expertise requires doctoral students to master disciplinary knowledge, conventions and scholarship under the guidance of supervisors.

Methodology	: The study draws on a mixed-method approach, using an online survey and semi-structured interviews conducted with doctoral students.

Contribution: The paper brings to the fore the role of supervisors’ discipline expertise on doctoral students’ research progress.

Findings: The survey data suggest that doctoral students nominate their supervisors on the basis of their discipline expertise. They also view supervisors’ expertise as key to the development of ‘insider’ knowledge of their doctoral research.

Recommendations for Practitioners: Supervisors play a pivotal role in helping doctoral students overcome intellectual barriers by imparting their discipline knowledge as well as balancing satisfactory doctoral completion rate and high quality student experience.

Impact on Society	: Doctoral supervision equips doctoral students with the right arsenal to be able to competently operate within their field and prepares them for their future research or professional career that demands a high level of discipline expertise.

Future Research:	The scope of the findings leaves open a discussion about the experiences of doctoral students matched with non-discipline expert supervisory teams; for example, the extent of the mismatch and its ramifications.
A Systematic Literature Review of Agile Maturity Model Research
Authors: Henriques Vaughan , Tanner Maureen 
Published: October 2017

Background/Aim/Purpose: A commonly implemented software process improvement framework is the capability maturity model integrated (CMMI). Existing literature indicates higher levels of CMMI maturity could result in a loss of agility due to its organizational focus. To maintain agility, research has focussed attention on agile maturity models. The objective of this paper is to find the common research themes and conclusions in agile maturity model research.

Methodology: This research adopts a systematic approach to agile maturity model research, using Google Scholar, Science Direct, and IEEE Xplore as sources. In total 531 articles were initially found matching the search criteria, which was filtered to 39 articles by applying specific exclusion criteria.

Contribution:: The article highlights the trends in agile maturity model research, specifically bringing to light the lack of research providing validation of such models.

Findings: Two major themes emerge, being the coexistence of agile and CMMI and the development of agile principle based maturity models. The research trend indicates an increase in agile maturity model articles, particularly in the latter half of the last decade, with concentrations of research coinciding with version updates of CMMI. While there is general consensus around higher CMMI maturity levels being incompatible with true agility, there is evidence of the two coexisting when agile is introduced into already highly matured environments.

Future Research:	Future research direction for this topic should include how to attain higher levels of CMMI maturity using only agile methods, how governance is addressed in agile environments, and whether existing agile maturity models relate to improved project success.
A Cognitive Knowledge-based Framework for Social and Metacognitive Support in Mobile Learning
Authors: A. Al-Hunaiyyan Ahmed , T Bimba Andrew , Idris Norisma , Al-Sharhan Salah 
Published: October 2017

Aim/Purpose: This work aims to present a knowledge modeling technique that supports the representation of the student learning process and that is capable of providing a means for self-assessment and evaluating newly acquired knowledge. The objective is to propose a means to address the pedagogical challenges in m-learning by aiding students’ metacognition through a model of a student with the target domain and pedagogy.

Background:	This research proposes a framework for social and meta-cognitive support to tackle the challenges raised. Two algorithms are introduced: the meta-cognition algorithm for representing the student’s learning process, which is capable of providing a means for self-assessment, and the social group mapping algorithm for classifying students according to social groups.

Methodology	: Based on the characteristics of knowledge in an m-learning system, the cognitive knowledge base is proposed for knowledge elicitation and representation. The proposed technique allows a proper categorization of students to support collaborative learning in a social platform by utilizing the strength of m-learning in a social context. The social group mapping and metacognition algorithms are presented.

Contribution: The proposed model is envisaged to serve as a guide for developers in implementing suitable m-learning applications. Furthermore, educationists and instructors can devise new pedagogical practices based on the possibilities provided by the proposed m-learning framework.

Findings: The effectiveness of any knowledge management system is grounded in the technique used in representing the knowledge. The CKB proposed manipulates knowledge as a dynamic concept network, similar to human knowledge processing, thus, providing a rich semantic capability, which provides various relationships between concepts.

Recommendations for Practitioners: Educationist and instructors need to develop new pedagogical practices in line with m-learning.

Recommendation for Researchers:	The design and implementation of an effective m-learning application are challenging due to the reliance on both pedagogical and technological elements. To tackle this challenge, frameworks which describe the conceptual interaction between the various components of pedagogy and technology need to be proposed.

Impact on Society: The creation of an educational platform that provides instant access to relevant knowledge.

Future Research: In the future, the proposed framework will be evaluated against some set of criteria for its effectiveness in acquiring and presenting knowledge in a real-life scenario. By analyzing real student interaction in m-learning, the algorithms will be tested to show their applicability in eliciting student metacognition and support for social interactivity.
Ransomware: A Research and a Personal Case Study of Dealing with this Nasty Malware
Authors: Ali Azad 
Published: October 2017

Aim/Purpose	: Share research finding about ransomware, depict the ransomware work in a format that commonly used by researchers and practitioners and illustrate personal case experience in dealing with ransomware.

Background: Author was hit with Ransomware, suffered a lot from it, and did a lot of research about this topic. Author wants to share findings in his research and his experience in dealing with the aftermath of being hit with ransomware.

Methodology: Case study. Applying the literature review for a personal case study.

Contribution: More knowledge and awareness about ransomware, how it attacks peoples’ computers, and how well informed users can be hit with this malware.

Findings: Even advanced computer users can be hit and suffer from Ransomware attacks. Awareness is very helpful. In addition, this study drew in chart format what is termed “The Ransomware Process”, depicting in chart format the steps that ransomware hits users and collects ransom.

Recommendations for Practitioners	: Study reiterates other recommendations made for dealing with ransomware attacks but puts them in personal context for more effective awareness about this malware.

Recommendation for Researchers: This study lays the foundation for additional research to find solutions to the ransomware problem. IT researchers are aware of chart representations to depict cycles (like SDLC). This paper puts the problem in similar representation to show the work of ransomware.

Impact on Society: Society will be better informed about ransomware. Through combining research, illustrating personal experience, and graphically representing the work of ransomware, society at large will be better informed about the risk of this malware.

Future Research: Research into solutions for this problem and how to apply them to personal cases.
Transforming Communications in the Workplace: The Impact of UC on Perceived Productivity in a Multi-national Corporation
Authors: Fluker Joy , Coffin Murray Meg 
Published: October 2017

[This Proceedings paper was revised and published in the Interdisciplinary Journal of Information, Knowledge, and Management (IJIKM)]

Aim/Purpose: Unified Communications (UC) is touted as a technology that will transform business communication. While positive claims abound, the factors of UC attributable to its success have yet to be identified. By examining how users perceive UC impacts productivity, this study aids organizations in making better decisions regarding investments in and usage of communications technologies.

Background: Unified Communications integrates disparate communications and information sharing applications into a single platform. The promise of UC is that it will revolutionize the workplace by providing a more synchronized fit between the way people communicate and the technology they use.

Methodology: Through case study research conducted within a large multinational corporation (the Hewlett Packard Company), this study investigated the impact of UC on productivity. Interview narratives were examined using an open coding technique to capture individual perceptions of productivity. Further, to assess the role UC plays in facilitating relationship building and its connection to productivity, participant responses were mapped to the key factors of technology that influence relationships within an organization as identified by Dillon and Montano (2005).

Contribution: This research contributes to studies on the impact of UC on productivity in the workplace.

Findings: UC was found to increase personal productivity, remove communication barriers, and create a more positive work environment.

Recommendations for Practitioners	: The findings of this study will aid organizations in making investment decisions as they evolve their business communications strategy.

Impact on Society	: Unified Communications will play an increasingly important role as people adapt to the evolving digital world through which they communicate and collaborate.

Future Research: Little research exists that examines the impact of UC within an organization. Additional research investigating the use of UC in a variety of business sectors is needed.