Miracle-dz/UniFAR-FTUs huggingface dataset:
The Evolution of Reciprocal Altruism

A model is presented to account for the natural selection of what is termed reciprocally altruistic behavior. The model shows how selection can operate against the cheater (non-reciprocator) in the system. Three instances of altruistic behavior are discussed, the evolution of which the model can explain: (1) behavior involved in cleaning symbioses; (2) warning cries in birds; and (3) human reciprocal altruism. Regarding human reciprocal altruism, it is shown that the details of the psychological system that regulates this altruism can be explained by the model. Specifically, friendship, dislike, moralistic aggression, gratitude, sympathy, trust, suspicion, trustworthiness, aspects of guilt, and some forms of dishonesty and hypocrisy can be explained as important adaptations to regulate the altruistic system. Each individual human is seen as possessing altruistic and cheating tendencies, the expression of which is sensitive to developmental variables that were selected to set the tendencies at a balance appropriate to the local social and ecological environment.
Signals of Doubt: Text-Mining Climate Skepticism

Although agreement among scientists on anthropogenic climate change is clear, national surveys show that the American public’s perceptions on the science of climate change diverge significantly from the “consensus view. ” Explanations for this divergence range from the influence of local weather events to the health of the economy, while many place blame on the efforts of climate change deniers to sway public opinion away from mainstream climate science. This study examines the dynamics of climate change “contrarianism” in the American context by analyzing the content of major conservative think tanks on the issue from the mid 1990s to the present. Specifically, we rely on an unsupervised text classification algorithm to produce time series measures of climate skepticism. Our results highlight how even simple uses of recent advances in natural language processing provide insight into key questions in the literature on climate change contrarianism.
Active ammonia transport and excretory nitrogen metabolism in the climbing perch, Anabas testudineus, during 4 days of emersion or 10 minutes of forced exercise on land

SUMMARY The climbing perch, Anabas testudineus, inhabits large rivers, canals, stagnant water bodies, swamps and estuaries, where it can be confronted with aerial exposure during the dry season. This study aimed to examine nitrogen excretion and metabolism in this fish during 4 days of emersion. Contrary to previous reports, A. testudineus does not possess a functional hepatic ornithineurea cycle because no carbamoyl phosphate synthetase I or III activity was detected in its liver. It was ammonotelic in water, and did not detoxify ammonia through increased urea synthesis during the 4 days of emersion. Unlike many air-breathing fishes reported elsewhere, A. testudineus could uniquely excrete ammonia during emersion at a rate similar to or higher than that of the immersed control. In spite of the fact that emersion had no significant effect on the daily ammonia excretion rate, tissue ammonia content increased significantly in the experimental fish. Thus, it can be concluded that 4 days of emersion caused an increase in ammonia production in A. testudineus, and probably because of this, a transient increase in the glutamine content in the brain occurred. Because there was a significant increase in the total essential free amino acid in the experimental fish after 2 days of emersion, it can be deduced that increased ammonia production during emersion was a result of increased amino acid catabolism and protein degradation. Our results provide evidence for the first time that A. testudineus was able to continually excrete ammonia in water containing 12 mmol l-1 NH4Cl. During emersion, active ammonia excretion apparently occurred across the branchial and cutaneous surfaces, and ammonia concentrations in water samples collected from these surfaces increased to 20 mmol l-1. It is probable that the capacities of airbreathing and active ammonia excretion facilitated the utilization of amino acids by A. testudineus as an energy source to support locomotor activity during emersion. As a result, it is capable of wandering long distance on land from one water body to another as reported in the literature.
Attention and the Visual Representation of Object in the Ventrolateral Prefrontal Cortex and Anterior Cingulate Cortex of the Rhesus Monkey

The effects of attending to one or another of an object's attributes on neuronal representations of that object were investigated using extracellular recordings. A female rhesus monkey performed a delayed match to object attribute (DMSA) task, in which she alternately matched object orientations and object colors. In half of the task conditions, only one attribute matched the sample, forcing the animal to apply the current matching rule and ignore the irrelevant-attribute. Multiple simultaneous single-unit extracellular recordings were made in the ventrolateral prefrontal cortex (VLPFC) and anterior cingulate cortex (ACC) while the monkey performed the task. Neuronal selectivity for matching rule, object attributes, attribute relevance, response choice, and congruency were assessed using multi-factor ANOVAs. Attribute-selective responses were common in both cortical areas during the sample and delay periods, but were not significantly modulated by attribute relevance. There were few interactions between color-selective and orientation-selective responses according to the ANOVAs, suggesting that these attributes were represented independently. Significant effects of attribute relevance, response choice, and congruency appeared in both areas after the delay period, when the probe appeared onscreen. VLPFC cells were more active during incongruent and non-match conditions, when responses had to be suppressed. ACC cells were more active during congruent and match conditions, when active response suppression was not required. The results indicate that although prefrontal cortex often shows a bias for relevant information (Rainer et al, 1998), it may not do so if the task requires frequent alternation of attentional sets or active suppression of conflicting responses. The data also indicate that the VLPFC's role in managing attentional 'set' (Banich et al, 2000; Milham et al, 2001) is performed in conjunction with active stimulus comparison and response selection (e.g., Rushworth et al, 1997), not during working memory maintenance. The ACC may facilitate the reactivation of response tendencies that had been actively suppressed, possibly as part of a larger role in managing response conflict (Botvinick et al, 2004). Thesis Supervisor: Earl K. Miller Title: Professor of Brain and Cognitive Science
The way and its power : Lao Tzu's Tao tê ching and its place in Chinese thought

Arthur Waley s brilliant and definitive translation of one of the foremost of all mystical books, Lao Tzu s Tao Te Ching, has become a modern classic in its own right. Unlike previous translations, it is founded not on the medieval commentaries but on a close study of all the early Chinese literature, and it provides a singular example of authoritative scholarship skillfully blended with brilliant, precise writing. In his introduction, Dr. Waley gives an extensive scholarly account of Chinese thought down to the end of the third century B.C. Here, the author presents a full picture of Chinese prehistory, early philosophy, and literature, showing the original, lofty conception of Taoism before the gradual corruption through the course of centuries, tracing this conflict of philosophies and its background of politics. "
Are Online Learners Frustrated with Collaborative Learning Experiences ?

Online education increasingly puts emphasis on collaborative learning methods. Despite the pedagogical advantages of collaborative learning, online learners can perceive collaborative learning activities as frustrating experiences. The purpose of this study was to characterize the feelings of frustration as a negative emotion among online learners engaged in online computer-supported collaborative learning (CSCL) experiences and, moreover, to identify the sources to which the learners attribute their frustration. With this aim, a questionnaire was designed to obtain data from a sample of online learners participating in the Master of ICT and Education program of the Universitat Oberta de Catalunya (UOC). Results revealed that frustration is a common feeling among students involved in online collaborative learning experiences. The perception of an asymmetric collaboration among the teammates was identified by the students as the most important source of frustration. Online learners also identified difficulties related to group organization, the lack of shared goals among the team members, the imbalance in the level of commitment and quality of the individual contributions, the excess time spent on the online CSCL tasks, the imbalance between the individual and collective grades, and difficulties in communication, among other factors leading to frustration. The analysis of the students’ sources of frustration in online CSCL is followed by a list of recommendations to the distance education stakeholders, aiming to reduce students’ frustration and improve the quality of their experiences in online CSCL contexts such as the UOC.
Oil and Gas Exploration Valuation and the Value of Waiting

The timing flexibility of investments in oil and gas assets can potentially add value. In this article, we examine the value of waiting in exploration projects and propose a real option–based valuation method using least-squares Monte Carlo simulation. We show that the dynamics of the oil and gas prices have a large impact on the value of the option to wait, especially for projects with long lead times and durations. The uncertainty in the forward price curve is modeled using a two-factor stochastic price process. The article also presents the valuation method in the form of MATLAB functions and routines that can be used as an efficient test and analysis platform using the industry-standard input formats.
Accounting Information Systems (AIS) Development/ Acquisition Approaches by Greek SME

This paper reports some findings from a wider pilot research study that addresses the Accounting Information Systems (AIS) development/acquisition practices adopted by a sample of Greek companies. Organizations, worldwide, realize that existing AIS are not flexible enough to adapt to rapidly changing conditions induced by globalization and new business paradigms. Many companies, despite high replacement costs, have replaced their legacy systems with off-the-shelf systems in order to remain competitive. In many case these efforts were not entirely successful. This paper, based on a mail survey addressed to Chief Information Officers involved specifically in AIS development/acquisition in Greek SME, provides a picture of current trends in Greece. This study aims at improving practice and alerting researchers and managers of some of the issues involved in the area of AIS related to flexibility and adaptability of systems to changing conditions. It will also provide the basis for conducting a national survey regarding AIS later this year.
Haptoglobin Genotype and Renal Function Decline in Type 1 Diabetes

OBJECTIVE Haptoglobin (Hp) binds free Hb, inhibiting Hb-induced oxidative damage. As oxidative stress has been associated with microvascular complications, we evaluated the relationship between Hp genotype and microalbuminuria, macroalbuminuria, end-stage renal disease (ESRD), and early renal function decline in type 1 diabetes. RESEARCH DESIGN AND METHODS Participants from the Epidemiology of Diabetes Complications Study with DNA available were studied for the incidence of microalbuminuria (albumin excretion rate [AER] 20–200 μg/min), macroalbuminuria (AER >200 μg/min), ESRD (renal dialysis or transplantation), and renal function decline (a decline ≥30 ml/min per 1.73 m2 from baseline estimated [by the Cockcroft-Gault equation] glomerular filtration rate [eGFR] in those with baseline eGFR >60 ml/min per 1.73 m2). RESULTS The proportions with the Hp 2/2, 2/1, and 1/1 genotype were 43.4, 44.4, and 12.1%, respectively. During 18 years of follow-up, the incidence of eGFR decline, microalbuminuria, macroalbuminuria, and ESRD was 42.0, 40.5, 16.7, and 12.2%, respectively. No significant univariate differences were observed by Hp genotype. However, in multivariable Cox models, an ∼twofold increased risk was observed for the Hp 2/2 compared with the Hp 1/1 genotype for eGFR decline (hazard ratio 1.79 [95% CI 1.06–3.00]) and ESRD (2.74 [1.17–6.45]); no significant associations were observed for microalbuminuria or macroalbuminuria. CONCLUSIONS These data suggest that although Hp genotype is not associated with albuminuria per se, it may be an independent determinant of early renal function decline and progression to ESRD. Understanding these apparent contradictory findings may provide further insight into the pathogenesis of renal disease in type 1 diabetes.
Quality Mentoring for Student Teachers: A Principled Approach to Practice

Part 1 Quality mentoring - understanding the enterprise mentoring - major contextual issues quality in professional practice quality learning through practice. Part 2 Classroom-focused mentoring - a quality approach: quality classroom practice observing students and being observed debriefing, feedback, critique and reflection assessing professional competence. Part 3 Quality mentoring - the wider responsibilities: wider perspectives and advanced techniques course design, quality control nd quality mentoring.
Phylogenic analysis of Chinese Leishmania isolates based on small subunit ribosomal RNA (SSU rRNA) and 7 spliced leader RNA (7SL RNA)

The leishmaniases are zoonotic diseases caused by protozoan parasites of the genus Leishmania. Leishmaniases are still endemic in China, especially in the west and northwest froniter regions. To revalue the preliminary phylogenetic results of Chinese Leishmania isolates, we amplified partial fragment of small subunit ribosomal RNA (SSU rRNA) and 7 spliced leader RNA (7SL RNA), then tested the phylogenetic relationships among Chinese Leishmania isolates and their relatives by analyzing SSU rRNA gene sequences and 7SL RNA gene sequences. 19 SSU RNA sequences and 9 7SL RNA sequences were obtained in our study, then analyzed with 42 SSU RNA sequences and 32 7SL RNA sequences retrieved from Genbank, respectively. In the Bayesian analysis of the SSU RNA gene, the isolate MHOM/CN/93/GS7 and the isolate IPHL/CN/77/XJ771 are members of Leishmania donovani complex, while the isolate MHOM/CN/84/JS1 clustered with Leishmania tropica. The other 11 Chinese Leishmania isolates (MHOM/CN/90/WC, MCAN/CN/90/SC11, MHOM/CN/80/XJ801, MHOM/CN/85/GS4, MHOM/CN/84/SD1, MCAN/CN/86/SC7, MHOM/CN/54/#3, MHOM/CN/83/GS2, MHOM/CN/90/SC10H2, MHOM/CN/89/GS6 and MHOM/CN/ 89/GS5) form an unclassified group, defined as Leishmania sp. , and the most relative species to this group is L. tarentolae. In the Bayesian analysis of the 7SL RNA gene, 9 Chinese Leishmania isolates also formed an unclassified group with L. tarentolae, including canine isolate 10, MHOM/CN/85/GS4, MHOM/CN/84/SD1, MCAN/CN/86/SC7, MHOM/CN/54/#3, MHOM/ CN/83/GS2, MHOM/CN/90/SC10H2, MHOM/CN/89/GS6 and MHOM/CN/89/GS5. We concluded that: (1) Chinese Leishmania isolates are non-monophyly group; (2) an unclassified group may exist in China, and the most relative species to this group is L. tarentolae; (3) MHOM/CN/84/JS1, which was previously assigned as L. donovani, was most genetically related to L. tropica strain MHOM/SU/74/K27.
Relative-target-complexity-based clutter metric for human visual systems

Under the assumption that the image information is determined mostly by the scene illumination and the objects structure, a new clutter metric, named the relative target complexity based clutter metric, for human visual systems is presented in this paper. The average intensity and the target complexity, independent of each other, are used to represent the image signal in the new metric. And its promise is demonstrated by the experiment results. Furthermore, the comparison, based on the search_2 database, of the new metric to the classical clutter metrics such as POE and SV shows its superiority.
Debt Financing, Survival, and Growth of Start-Up Firms

We analyze the relation between different forms of debt financing at the firm's start-up and subsequent firm outcomes. We distinguish between business debt, obtained in the name of the firm, and personal debt, obtained in the name of the firm's owner and used to finance the start-up firm. Start-up firms with better performance prospects are more likely to use debt and, in particular, business debt. Compared to all-equity firms, firms using debt at the initial year of operations are significantly more likely to survive and achieve higher levels of revenue three years after the firm's start-up. However, results hold for business debt only. Debt obtained in the name of the firm is associated with longer survival time and higher revenues, while debt obtained in the name of the firm's owner has no effect on survival time and is associated with lower revenues.
Development of a dexterous continuum manipulator for exploration and inspection in confined spaces

Purpose Slim and dexterous manipulators with long reaches can perform various exploration and inspection tasks in confined spaces. This paper aims to present the development of such a dexterous continuum manipulator for potential applications in the aviation industry. Design/methodology/approach Benefiting from a newly conceived dual continuum mechanism and the improved actuation scheme, this paper proposes a design of a slim and dexterous continuum manipulator. Kinematics modeling, simulation-based dimension synthesis, structural constructions and system descriptions are elaborated. Findings Experimental validations show that the constructed prototype possesses the desired dexterity to navigate through confined spaces with its kinematics calibrated and actuation compensation implemented. The continuum manipulator with different deployed tools (e.g. graspers and welding guns) would be able to perform inspections and other tasks at remote locations in constrained environments. Research limitations/implications The current construction of the continuum manipulator possesses quite some friction inside its structure. The bending discrepancy caused by friction could accumulate to an obvious level. It is desired to further reduce the friction, even though the actuation compensation had been implemented. Practical implications The constructed continuum manipulator could perform inspection and other tasks in confined spaces, acting as an active multi-functional endoscopic platform. Such a device could greatly facilitate routine tasks in the aviation industry, such as guided assembling, inspection and maintenance. Originality/value The originality and values of this paper mainly lay on the design, modeling, construction and experimental validations of the slim and dexterous continuum manipulator for the desired mobility and functionality in confined spaces.
Usefulness of Pretreatment Neutrophil to Lymphocyte Ratio in Predicting Disease-Specific Survival in Breast Cancer Patients

Purpose The purpose of this study was to investigate the prognostic impact of pretreatment neutrophil to lymphocyte ratio (NLR) on breast cancer in view of disease-specific survival and the intrinsic subtype. Methods We retrospectively studied patients diagnosed with primary breast cancer that had completed all phases of primary treatment from 2000 to 2010. The association between pretreatment NLR and disease-specific survival was analyzed. Results A total of 442 patients were eligible for analysis. Patients with higher NLR (2.5 ≤NLR) showed significantly lower disease-specific survival rate than those with lower NLR (NLR <2.5). Higher NLR along with negative estrogen receptor status and positive nodal status were independently correlated with poor prognosis, with hazard ratio 4.08 (95% confidence interval [CI], 1.62-10.28), 9.93 (95% CI, 3.51-28.13), and 11.23 (95% CI, 3.34-37.83), respectively. Luminal A subtype was the only intrinsic subtype in which higher NLR patients showed significantly poor prognosis (87.7% vs. 96.7%, p=0.009). Conclusion Patients with an elevated pretreatment NLR showed poorer disease-specific survival than patients without elevated NLR, most evident in the luminal A subtype. Further validation and a feasibility study are required before it can be considered for clinical use.
Downwards Wage Rigidity, Endogenous Separations and Firm Training

This paper analyses the effect of downwards wage rigidity on wage setting, wage compression and firm training. It is shown that downwards wage rigidity in future periods induces a wage penalty and increases wage compression in the present period. However, contrary to previous work this is not sufficient to increase firms’ training investments. The reason lies in the endogeneity of separations, which become more frequent.
Effect of oxygen on sleep quality, cognitive function and sympathetic activity in patients with chronic heart failure and Cheyne-Stokes respiration.

BACKGROUND Cheyne-Stokes respiration disrupts sleep, leading to daytime somnolence and cognitive impairment. It is also an independent marker of increased mortality in heart failure. This study evaluated the effectiveness of oxygen therapy for Cheyne-Stokes respiration in heart failure. METHODS Eleven patients with stable heart failure and Cheyne-Stokes breathing were studies. Oxygen and air were administered for 4 weeks in a double-blind, cross-over study. Sleep and disordered breathing was assessed by polysomnography. Symptoms were assessed using the Epworth Sleepiness Scale, visual analogue and quality of lift scores. Cognitive function was assessed by neuropsychometric testing. Overnight urinary catecholamine excretion was used as a measure of sympathetic nerve activity. RESULTS Ninety-seven percent of apnoeas were central in origin. Oxygen therapy reduced the central apnoea rate (18.4 +/- 4.1 vs 3.8 +/- 2.1 per hour; p = 0.05) and periodic breathing time (33.6 +/- 7.4 vs 10.7 +/- 3.9% of actual sleep time; p = 0.003). Oxygen did not improve sleep quality, patient symptoms or cognitive failure. Oxygen reduced urinary noradrenaline excretion (8.3 +/- 1.5 vs 4.1 +/- 0.6 nmol.mmol-1 urinary creatinine; p = 0.03). CONCLUSION Oxygen stabilized sleep disordered breathing and reduced sympathetic activity in patients with heart failure and Cheyne-Stokes respiration. We were unable to demonstrate an effect on either patient symptoms or cognitive function.