Miracle-dz/UniFAR-FTUs huggingface dataset:
Computer Aided Evaluation of Multi-Step Answers to Algebra Questions

This paper presents a system that automatically assesses multi-step answers to algebra questions. The system requires teacher involvement only during the question set-up stage. Two types of algebra questions are currently supported: questions with linear equations containing fractions, and questions with quadratic equations. The system evaluates each step of a student's answer and awards full/partial marks according to a marking scheme. The system was evaluated for its performance using a set of student answer scripts from a government school in Sri Lanka and also by undergraduate students. The system accuracy was over 95.4%, and over 97.5%, respectively for the aforementioned data sets.
Time perceptions of South African accounting academics

Research, teaching and service are usually regarded as an academic’s main responsibilities. One of the most hotly debated issues in the international arena is what academics should devote their time to, since time is a limited commodity for academics and tradeoffs are necessary. The aim of this study was to establish the perceptions of South African accounting academics with regard to how they spend their academic time. Managers can use this information in efficiency planning and individuals can use this information to compare their effort allocations to those of their colleagues. A descriptive study was conducted in which a questionnaire was used to test, inter alia, the perception of how South African accounting academics at every SAICA‐accredited university use their academic time. Nine activities were tested that relate to management, teaching, research and service. It was found that South African accounting academics spent 10% of their time on management tasks, 78% on teaching, 5% on research and 7% on service. Half (50%, median) of the respondents spent 5% of their time on management tasks, 65% on tuition and 5% on enhancing their own knowledge. It appears as if excessive time is spent on teaching, whilst inadequate time is allocated to research activities. Time spent on service activities appears to be reasonable. An Accounting academic’s qualification appears to be the best indicator against which to measure time allocation. A clear pattern emerged in a comparison between qualification and time allocation in seven of the nine activities tested. The higher the respondent’s qualification, the more time is spent on management tasks, research for both non‐accredited and accredited journals, acting as external examiner and community work. The inverse is true for subject‐related administration and tuition.
Commentary on ‘Measurement in clinical trials: A neglected issue for statisticians?’

The paper by Senn and Julious has highlighted some issues that are important but which, to a large extent, have been discussed fairly widely in the statistics and medical statistics literature. From one perspective, this is good because it is apparent that some messages need repetition so as to be appropriately incorporated into new eras of methodological development and understood by new generations of medical statisticians. However, it is equally important to engage with the process of changing practice in medical research and it is perhaps less clear what this paper offers in this regard. Of course, this is not an easy task
Green value added

Purpose – To provoke thought, and perhaps responses, to a radical view of “green marketing” and its place in society.Design/methodology/approach – This paper is essentially an essay but, based on a careful review of the relevant literature, several empirical studies conducted by the authors themselves, and some practical experience in green marketing.Findings – The key challenge for green marketers has been in the past and will be more so in the future to strengthen individuals' perception of the individual benefits to be gained from “going green” by adding more and stronger emotional values to green brands. Future green marketing research should extend its analysis to the emotional motivations and benefits associated with environmentally responsible consumption behaviour.Research limitations/implications – This essay is not based on a specific empirical study; it expresses a personal point of view, albeit well grounded in theory and practice. Green branding is a promising topic for future research.Practi.
Estimation of heart rate during sleep measured from a gyroscope embedded in a CPAP mask

A device was developed to monitor the heart rate of patients who are undergoing CPAP therapy, a technique used to treat Sleep Apnea. This device is a wearable ballistocardiographic device that comprises of a 3-axis gyroscope, embedded into a full face CPAP mask. Data were collected from the gyroscope whilst being worn by a patient in simulated sleeping conditions. From these data, an algorithm was developed to extract heart rate signals from different heart rate estimates from the gyroscope. Over a 5 minute period, the algorithm was able to correctly identify between 64–95% of the heartbeats from the different gyroscope components. In order to improve the accuracy of the heart rate detection, two data fusion algorithms were implemented on the outputs from the heartrate detection algorithm. These two data fusion algorithms involved a custom weighted average algorithm and a Kalman filter, which when applied were able to achieve mean errors of 2.776 beats per minute (STD. 3.279) and 2.349 beats per minute (STD. 2.298) respectively. The performance of these algorithms in the presence of movement artefacts was also tested, and the tests showed that the algorithm is able to recover from large movement artefacts after a short period of between 7–15 seconds. These results show that it is possible to accurately monitor the HR of a subject using signals from a gyroscope embedded into a CPAP mask.
The Silo Effect of Information Technology on the Organizational Productivity: A Qualitative Research Study

In the field of technology, research shows that information technology (IT) is needed to improve the quality of workplace in any industry. Thus, the advent of Internet has made it easy to communicate with others and get the work done with less effort from where you are and at any time. Considering this fact, IT gained ground in all areas of life and developing nations in various sectors. However, IT creates silos among workers and employers. This study attempts to answer the following research question: how can a silo be a bad or good thing on any organizational productivity based on the researcher’s working experience shared stories? The aim of this research is to share how IT can build silos and affect on the organizational productivity. To examine the research problem , the researcher narrates the stories of his working experience in a hospital in Pennsylvania in the United States of America (U.S.). The results indicate that the IT is a very good tool to facilitate communication and solves problems, but the misuse of IT systems may lead to construction of a huge silo system among the leadership and employees within the same business.
Mechanisms of magnesium-stimulated adhesion of osteoblastic cells to commonly used orthopaedic implants.

Poor cell adhesion to orthopaedic and dental implants may result in implant failure. Cellular adhesion to biomaterial surfaces primarily is mediated by integrins, which act as signal transduction and adhesion proteins. Because integrin function depends on divalent cations, we investigated the effect of magnesium ions modified bioceramic substrata (Al(2)O(3)-Mg(2+)) on human bone-derived cell (HBDC) adhesion, integrin expression, and activation of intracellular signalling molecules. Immunohistochemistry, flow cytometry, cell adhesion, cell adhesion blocking, and Western blotting assays were used. Our findings demonstrated that adhesion of HBDC to Al(2)O(3)-Mg(2+) was increased compared to on the Mg(2+)-free Al(2)O(3). Furthermore, HBDC adhesion decreased significantly when the fibronectin receptor alpha5beta1- and beta1-integrins were blocked by functional blocking antibodies. HBDC grown on the Mg(2+)-modified bioceramic expressed significantly enhanced levels of beta1-, alpha5beta1-, and alpha3beta1-integrins receptors compared to those grown on the native unmodified Al(2)O(3). Tyrosine phosphorylation of intracellular integrin-dependent signalling proteins as well as the expression of key signalling protein Shc isoforms (p46, p52, p66), focal adhesion kinase, and extracellular matrix protein collagen type I were significantly enhanced when HBDC were grown on Al(2)O(3)-Mg(2+) compared to the native Al(2)O(3). We conclude that cell adhesion to biomaterial surfaces is probably mediated by alpha5beta1- and beta1-integrin. Cation-promoted cell adhesion depends on 5beta1- and beta1-integrins associated signal transduction pathways involving the key signalling protein Shc and results also in enhanced gene expression of extracellular matrix proteins. Therefore, Mg(2+) supplementation of bioceramic substrata may be a promising way to improve integration of implants in orthopaedic and dental surgery.
Good learners: How top management teams affect the success and frequency of acquisitions

We develop new theory and hypotheses on how a firm's top management team learns from acquisition experience, why, in consequence, the composition of the team is crucial, and how this affects acquisition frequency and success. We focus on the diversity of the top team and argue that heterogeneous teams, as compared to homogenous ones, acquire less but benefit more from their acquisition experience and are more successful with their acquisitions because they avoid mis-transferring their experiences. We tested our hypotheses on acquisition frequency and success using longitudinal data on more than 2,000 acquisitions by 25 Dutch companies over four decades (1966 to 2006).
Spectral Clustering and Community Detection in Labeled Graphs

We study generalized stochastic block models which include edge labels. We survey recent work on the fully generalized stochastic block model, discussing spectral techniques for recovering edge label distributions. Community detection is infeasible in the generalized model. We reduce to a simplified labeled stochastic block model and suggest techniques to perform community detection in this setting.
Pathways less traveled to value creation: interaction, dialogue and knowledge generation

Relationship marketing is based on the idea that the existence of a relationship between customer and supplier creates value for both parties, in addition to the value of the products or services provided. In this special issue edition entitled “Pathways less traveled to value creation: interaction, dialogue and knowledge generation” articles are submitted from five sets of authors, giving different perspectives of marketing and the knowledge generation and communication aspects surrounding it.
The Business Profession

Designed to guide those who want to replicate a similar program at their institutions, this article examines Xavier University’s experience with The Business Profession, a required, noncredit series of career-related events that business majors take over a 4-year period. This program was developed in response to research indicating that early career decision making and excellent career communication skills lead to better student employment choices. The Business Profession differs from traditional university career education programs in several ways. It is (a) developmental: It offers learner-centered programming over a 4-year period covering topics that match students’ growing career maturity; (b) cocurricular: It is offered as a cocurricular supplement to the academic business program; (c) mandatory: Business majors are required to complete this program as a graduation prerequisite; and (d) faculty directed: A tenured business communication faculty serves as director. Evaluations indicate students find the program valuable in helping them create a career plan that relates academic learning to real-world needs.
An exploratory study of the contextual stability of SERVQUAL amongst three retail clusters in far North Queensland

Purpose – This study seeks to assess the psychometric properties of SERVQUAL, a prevalent instrument for measuring service quality within the “place” context of a shopping mall. Since, appearing in the management and marketing literature, this instrument has proved popular amongst researchers and practitioners. However, evidence supporting or refuting the tenets of the “gap” model and the dimensionality of the questionnaire is equivocal.Design/methodology/approach – Modified versions of the questionnaire were used as a basis for interviewing customers of three retail clusters in the region of far North Queensland (n=782). Findings – Analysis of data failed to support the generic five‐factor structure of service quality amongst these retail outlets. Service quality was perceived to be context‐specific and less multi‐dimensional than contended by the original SERVQUAL authors. Furthermore, little support was found for the concurrent validity of the instrument. Moreover, notions of service quality may have be.
Using readability tests to predict helpful product reviews

User-generated content provides online consumers with a wealth of information. Given the ever-increasing quantity of available content and the lack of quality control applied to this content, there is a clear need to enhance the user experience when it comes to effectively leveraging this vast information source. In this paper, we address these issues in the context of user-generated product reviews. We expand on recent work to consider the performance of structural and readability feature sets on the classification of helpful product reviews. Our findings, based on a large-scale evaluation of TripAdvisor and Amazon reviews, indicate that structural and readability features are useful predictors for Amazon product reviews but less so for TripAdvisor hotel reviews.
Riding the Saddle: How Cross-Market Communications Can Create a Major Slump in Sales

Using data on a large number of innovative products in the consumer electronics industry, the authors find that between one-third and one-half of the sales cases involved the following pattern: an initial peak, then a trough of sufficient depth and duration to exclude random fluctuations, and eventually sales levels that exceeded the initial peak. This newly identified pattern, which the authors call a “saddle,” is explained by the dual-market phenomenon that differentiates between early market adopters and main market adopters as two separate markets. If these two segments—the early market and the main market—adopt at different rates, and if this difference is pronounced, then the overall sales to the two markets will exhibit a temporary decline at the intermediate stage. The authors employ both empirical analysis and cellular automata, an individual-level, complex system modeling technique for generating and analyzing data, to investigate the conditions under which a saddle occurs. The model highlights the importance of cross-market communication in determining the existence of a saddle. At low levels of this parameter, more than 50% of the cases of new product growth involved a saddle. This percentage gradually decreased as the parameter increased, and at values close to the within-market parameters, the proportion of saddle occurrences dropped below 5%.
Optimal Control of Three-Dimensional State-Constrained Induction Heating Problems with Nonlocal Radiation Effects

The paper is concerned with a class of optimal heating problems in semiconductor single crystal growth processes. To model the heating process, time-harmonic Maxwell equations are considered in the system of the state. Due to the high temperatures characterizing crystal growth, it is necessary to include nonlocal radiation boundary conditions and a temperature-dependent heat conductivity in the description of the heat transfer process. The first goal of this paper is to prove existence and uniqueness of the state. The regularity analysis associated with the time-harmonic Maxwell equations is also studied. In the second part of the paper, existence and uniqueness of the solution of the corresponding linearized equation are shown. With this result at hand, the differentiability of the control-to-state operator is derived. Finally, based on the theoretical results, first order necessary optimality conditions for an associated optimal control problem are established.
Exercise behavior, functional capacity, and survival in adults with malignant recurrent glioma.

PURPOSE Identifying strong markers of prognosis are critical to optimize treatment and survival outcomes in patients with malignant recurrent glioma. We investigated the prognostic significance of exercise behavior and functional capacity in this population. PATIENTS AND METHODS Using a prospective design, 243 patients with WHO grades 3 to 4 recurrent malignant glioma and Karnofsky performance status (KPS) ≥ 70 completed a self-administered questionnaire that assessed exercise behavior and performed a 6-minute walk test (6MWT) to assess functional capacity. Cox proportional models were used to estimate the risk of all-cause mortality according to 6MWT distance (6MWD; < 390 meters, 390-489 meters, > 489 meters) and exercise behavior (metabolic equivalent [MET] -h/wk) adjusted for KPS and other important clinical factors. RESULTS Median follow-up was 27.43 months. During this period, 149 deaths were recorded (61% of the total sample). Exercise behavior was an independent predictor of survival (P = .0081). Median survival was 13.03 months for patients reporting < 9 MET-h/wk relative to 21.84 months for those reporting ≥ 9 MET-h/wk. Exercise behavior added incremental prognostic value beyond that provided by KPS, age, sex, grade, and number of prior progressions (P < .001). Compared with patients reporting < 9 MET-h/wk, the adjusted hazard ratio for mortality was 0.64 (95% CI, 0.46 to 0.91) for patients reporting ≥ 9 MET-h/wk. Functional capacity was not an independent predictor of prognosis. CONCLUSION Exercise behavior is a strong independent predictor of survival that provides incremental prognostic value to KPS as well as traditional markers of prognosis in malignant recurrent glioma.
Pathological studies on natural cases of avian colibacillosis in Haryana state.

Pathological studies were undertaken on natural cases of poultry carcasses to study the incidence and pathological lesions of Escherichia coli infection. Colibacillosis was noticed in different age groups but maximum mortality was evident in birds of 3-4 weeks of age. E. coli was isolated from blood and liver samples in 86.6% cases. Gross pathological changes included congestion in various organs, accumulation of fibrin on the liver and heart. Histopathologically there was fibrinous pericarditis, myocarditis, fibrinous perihepatitis, hepatitis and fatty changes in hepatocytes, interstitial pneumonia, necrosis and depletion of lymphocytes in spleen and enteritis. It is concluded that pathogenic E. coli in natural cases caused systemic lesions in chicks and also resulted in immunosuppression. During last few decades, intensive rearing has become a method of poultry husbandry that has predisposed birds for various infectious diseases and thus poultry industry has suffered great losses. Escherichia coli is a commensal organism residing in the intestinal tract of poultry, and often turns pathogenic under adverse conditions. Colibacillosis is a complex syndrome characterized by multiple organ lesions like air-sacculitis, pericarditis, peritonitis, salpingitis, synovitis, osteomyelitis or yolk sac infection. Avian pathogenic E. coli (APEC) causes significant morbidity and mortality leading to multimillion-dollar losses to poultry industry (Barnes, 2008). The present study was undertaken to elucidate pathological lesions in field cases of E. coli infected broiler chicks. The investigation on the field cases included postmortem examination, isolation of E. coli organism and histopathology.
Tagging Accuracy Analysis on Part-of-Speech Taggers

Part of Speech (POS) Tagging can be applied by several tools and several programming languages. This work focuses on the Natural Language Toolkit (NLTK) library in the Python environment and the gold standard corpora installable. The corpora and tagging methods are analyzed and com- pared by using the Python language. Different taggers are analyzed according to their tagging ac- curacies with data from three different corpora. In this study, we have analyzed Brown, Penn Treebank and NPS Chat corpuses. The taggers we have used for the analysis are; default tagger, regex tagger, n-gram taggers. We have applied all taggers to these three corpuses, resultantly we have shown that whereas Unigram tagger does the best tagging in all corpora, the combination of taggers does better if it is correctly ordered. Additionally, we have seen that NPS Chat Corpus gives different accuracy results than the other two corpuses.
PENGARUH PENGETAHUAN, PENGALAMAN KERJA AUDIT, DAN AKUNTABILITAS TERHADAP KUALITAS HASIL KERJA AUDITOR INTERNAL

Penelitian ini bertujuan untuk mengetahui pengaruh pengetahuan terhadap kualitas hasil kerja auditor internal, pengaruh pengalaman kerja audit terhadap kualitas hasil kerja auditor internal, pengaruh akuntabilitas terhadap kualitas hasil kerja auditor internal, dan untuk mengetahui pengaruh pengetahuan, pengalaman kerja audit, dan akuntabilitas terhadap kualitas hasil kerja auditor internal Penelitian ini termasuk dalam penelitian kuantitatif. Sampel digunakan dengan menggunakan metode sensus. Sampel dalam penelitian ini sebanyak 59. Analisis data menggunakan regresi berganda dengan bantuan software SPSS V19. Hasil penelitian menunjukkan bahwa pengetahuan berpengaruh positif dan signifikan terhadap kualitas hasil kerja auditor internal, pengalaman kerja audit berpengaruh positif dan signifikan terhadap kualitas hasil kerja auditor internal, akuntabilitas berpengaruh positif dan signifikan terhadap kualitas hasil kerja auditor internal, dan pengetahuan, pengalaman kerja audit, dan akuntabilitas berpengaruh signifikan terhadap kualitas hasil kerja auditor internal. Kata Kunci : pengetahuan, pengalaman audit, akuntabilitas, kualitas hasil kerja auditor internal This study aims to determine the effect of knowledge on the quality of the work of the internal auditors, the effect of work experience on the quality of the audit work of internal auditor, the influence of accountability on the quality of the work of the internal auditors, and to determine the effect of knowledge experience and accountability audit work on the quality of the work of the internal auditors This study was included in the quantitative research. Samples using the method using in this study were sensus. The samples in this study were 59. Analysis of data using multiple regression with the help of software SPSS 19. The results of this study indicate that knowledge and significant positive effect on the quality of the work of the internal auditors, work experience and significant positive effect on the quality of work of the internal auditors, accountability positive and significant effect an the quality of the work of the internal auditors. And knowledge, work experience auditing, and accountability significant effect on the quality of the work of internal auditors, keyword : Knowladge, Work Experience Auditing, Accountability, Quality Of The Work Of Internal Auditors