Miracle-dz/UniFAR-FTUs huggingface dataset:
SMART: A Secure Multilayer Credit-Based Incentive Scheme for Delay-Tolerant Networks

Delay-tolerant networks (DTNs) provide a promising solution to support wide-ranging applications in the regions where end-to-end network connectivity is not available. In DTNs, the intermediate nodes on a communication path are expected to store, carry, and forward the in-transit messages (or bundles) in an opportunistic way, which is called opportunistic data forwarding. Such a forwarding method depends on the hypothesis that each individual node is ready to forward packets for others. This assumption, however, might easily be violated due to the existence of selfish or even malicious nodes, which may be unwilling to waste their precious wireless resources to serve as bundle relays. To address this problem, we propose a secure multilayer credit-based incentive scheme to stimulate bundle forwarding cooperation among DTN nodes. The proposed scheme can be implemented in a fully distributed manner to thwart various attacks without relying on any tamperproof hardware. In addition, we introduce several efficiency optimization techniques to improve the overall efficiency by exploiting the unique characteristics of DTNs. Extensive simulations demonstrate the efficacy and efficiency of the proposed scheme.
An empirical evaluation of object oriented metrics in industrial setting

Advances in distributed object technologies (e.g., the Common Object Request Broker Architecture [15] and the Enterprise Java Bean Specification [19]) dramatically impact the development process of distributed software applications. In particular, time for providing new distributed services is decreasing because applications are not built from scratch any longer. Rather, they are developed based on pre-existing middle tier software (middleware) and integrate components and services provided off-the-shelf by third parties [9]. The increasing demand for rapid provision of new products entails rigid constraints on the activities of quality assurance for this class of applications. It becomes crucial to optimize the allocation of resources for testing and analysis to meet the required quality goals, while reducing time-to-market. Measuring the fault-proneness of the software may facilitate the allocation of resources for testing and analysis. If the distribution of faults in the software can be accurately estimated in advance, resources can be allocated accordingly, i.e., more resources to the more fault-prone parts of the software. For example, in the case of code inspection, more thorough inspection sessions could be scheduled for the more fault-prone modules. Although fault-proneness cannot be directly measured, it can be estimated based on other measurable attributes of the software, based on expected correlations between such attributes and fault-proneness. Many software metrics have been proposed for this purpose (e.g., [14, 10, 20]). However, the best predictors of fault-proneness may vary according to the class of applications and the target application domain, as demonstrated by many empirical studies [13, 18, 16, 17, 7, 6]. In the nineties, researchers started investigating software metrics to capture the specific complexity of object-oriented systems [5, 11, 4, 2]. Object-Oriented (OO) metrics capture characteristics of class hierarchies, of the internal cohesion
Physical Activity and Risk of Cerebrovascular Disease in the European Prospective Investigation Into Cancer and Nutrition-Spain Study

Background and Purpose— Large-scale prospective epidemiological data testing the association between physical activity (PA) and cerebrovascular diseases (CVDs) are scarce, particularly in Europe. The objective was to assess the risk of CVD according to PA levels in adults. Methods— We included a total of 13 576 men and 19 416 women aged 29 to 69 years and participating in the European Prospective Investigation into Cancer and Nutrition cohort in Spain, recruited between 1992 and 1996 and followed-up until 2006 to ascertain incident CVD events. The validated European Prospective Investigation into Cancer and Nutrition PA questionnaire was used to assess metabolic equivalent × hours per week dedicated to different types of PA. Hazard ratios of CVD by PA levels were estimated using multivariate Cox regression. Extensive baseline data collected on diet, lifestyle habits, medical history, and anthropometry were available to adjust for. Results— A total of 210 transient ischemic attacks and 442 stroke cases (80% ischemic, 10% hemorrhagic, 7% subarachnoid hemorrhage, and 3% mixed or unspecified) were registered after 12.3 years of mean follow-up. Recreational activity was inversely associated with risk of CVD in women but not in men. Women walking for ≥3.5 hours per week were at lower risk of stroke than those who did not engage in regular walking. No significant associations were found for other leisure time activities or vigorous PA with CVD in either sex. Conclusions— Recreational PA of moderate intensity was inversely associated with stroke incidence in women, whereas PA showed no effect on CVD risk in men. Increasing time dedicated to activities such as walking would be expected to help to reduce the stroke burden in women.
The Relationship Between Meaning of Illness, Social Support, Coping Strategies, and Quality of Life for Lung Cancer Patients and Their Family Members

This article explores the relationship between meaning of illness, perceived social support resources, coping strategies used, and quality of life (QOL) by patients with lung cancer and their family members. The study was cross-sectional using interview data from 85 patients and associated family members. Regression results showed that total QOL in patients with lung cancer is predicted most by meaning of illness, specifically, the illness being perceived as manageable. QOL in family members is predicted most by meaning of illness, specifically, less adverse impact. Interestingly, the overall meaning of illness, coping strategies used, and social support were similar in the 2 groups. The results of the study emphasize the importance of acknowledging the circumstances of people's lives, both patients surviving lung cancer and their family members, which contribute to QOL.
Controlled drainage and wetlands to reduce agricultural pollution: a lysimetric study.

Controlled drainage and wetlands could be very effective practices to control nitrogen pollution in the low-lying agricultural plains of northeast Italy, but they are not as popular as in other countries. An experiment on lysimeters was therefore carried out in 1996-1998, with the double aim of obtaining local information to encourage the implementation of these practices and to gain more knowledge on the effects involved. Controlled drainage + subirrigation and wetlands were all considered as natural systems where alternative water table management could ameliorate water quality, and were compared with a typical water management scheme for crops in the open field. Eight treatments were considered: free drainage on maize (Zea mays L.) and sugarbeet (Beta vulgaris L.), two treatments of controlled drainage on the same crops, and five wetland treatments using common reed [Phragmites australis (Cav.) Trin. ex Steud. ], common cattail (Typha latifolia L.), and tufted sedge (Carex elata All.), with different water table or flooding levels. Lysimeters received about 130 g m 2 of N with fertilization and irrigation water, with small differences among treatments. The effects of treatments were more evident for NO3-N concentrations than for the other chemical parameters (total Kjeldahl nitrogen, pH, and electrical conductivity), with significantly different medians among free drainage (33 mg L(-1)), controlled drainage (1.6 and 2.6 mg L(-1)), and wetlands (0.5-0.7 mg L(-1)). Referring to free drainage, NO3-N losses were reduced by 46 to 63% in controlled drainage and 95% in the average of wetlands. Wetlands also reduced losses of total dissolved solids from 253 g m(-2) (average of crop treatments) to 175 g m(-2) (average of wetlands).
Soil nutrients influence spatial distributions of tropical tree species

The importance of niche vs. neutral assembly mechanisms in structuring tropical tree communities remains an important unsettled question in community ecology [Bell G (2005) Ecology 86:1757–1770]. There is ample evidence that species distributions are determined by soils and habitat factors at landscape (<104 km2) and regional scales. At local scales (<1 km2), however, habitat factors and species distributions show comparable spatial aggregation, making it difficult to disentangle the importance of niche and dispersal processes. In this article, we test soil resource-based niche assembly at a local scale, using species and soil nutrient distributions obtained at high spatial resolution in three diverse neotropical forest plots in Colombia (La Planada), Ecuador (Yasuni), and Panama (Barro Colorado Island). Using spatial distribution maps of >0.5 million individual trees of 1,400 species and 10 essential plant nutrients, we used Monte Carlo simulations of species distributions to test plant–soil associations against null expectations based on dispersal assembly. We found that the spatial distributions of 36–51% of tree species at these sites show strong associations to soil nutrient distributions. Neutral dispersal assembly cannot account for these plant–soil associations or the observed niche breadths of these species. These results indicate that belowground resource availability plays an important role in the assembly of tropical tree communities at local scales and provide the basis for future investigations on the mechanisms of resource competition among tropical tree species.
Mechanisms of Practice-Related Reductions of Dual-Task Interference with Simple Tasks: Data and Theory

In dual-task situations, interference between two simultaneous tasks impairs performance. With practice, however, this impairment can be reduced. To identify mechanisms leading to a practice-related improvement in sensorimotor dual tasks, the present review applied the following general hypothesis: Sources that impair dual-task performance at the beginning of practice are associated with mechanisms for the reduction of dual-task impairment at the end of practice. The following types of processes provide sources for the occurrence of this impairment: (a) capacity-limited processes within the component tasks, such as response-selection or motor response stages, and (b) cognitive control processes independent of these tasks and thus operating outside of component-task performance. Dual-task practice studies show that, under very specific conditions, capacity-limited processes within the component tasks are automatized with practice, reducing the interference between two simultaneous tasks. Further, there is evidence that response-selection stages are shortened with practice. Thus, capacity limitations at these stages are sources for dual-task costs at the beginning of practice and are overcome with practice. However, there is no evidence demonstrating the existence of practice-related mechanisms associated with capacity-limited motor-response stages. Further, during practice, there is an acquisition of executive control skills for an improved allocation of limited attention resources to two tasks as well as some evidence supporting the assumption of improved task coordination. These latter mechanisms are associated with sources of dual-task interference operating outside of component task performance at the beginning of practice and also contribute to the reduction of dual-task interference at its end.
An Evaluation of Side-Looking 12 and 100 kHz Sonars for Continuous Surveillance of a Shallow Channel

Abstract : This study evaluates data from two high-frequency (12 and 100kHz) side-looking sonars which were operated for extended periods in March and October 1997 in Drogden Channel, near Copenhagen, Denmark. This busy shipping channel, 1-km-wide by 12-m-deep, connects the Baltic Sea with the North Sea through the Kattegat. The original purpose of these tests was to demonstrate continuous surveillance for migratory herring, however a variety of shipping traffic was also observed. Quantitative acoustic measurements of ship characteristics and low-grazing-angle seabed reverberation were made with both sonars under a variety of conditions. The sonar measurements were supplemented by simultaneous water temperature, salinity, and current profiles and surface meteorological measurements, allowing some understanding of the environmental influences. The general characteristics were that under normal, homogeneous flow conditions, ships and fish schools were routinely observed up to 400 m range with the 100 kHz sonar and up to 2000 m range with the 12 kHz system. Occasional saline intrusions near the seabed were observed to create strong upward-refracting conditions that significantly altered the available range for target detection, especially for the 100 kHz sonar. Example echo grams and reverberation results for both normal and upward-refracting conditions are shown. Ray-tracing analysis is used to assess the acoustic propagation conditions, specifically to define insonified volumes and shadow zones, and quantify the reflection focusing effects.
Synthesis of science to inform land management within the Northwest Forest Plan area: executive summary

This is the executive summary of a three-volume science synthesis that addresses various ecological and social concerns regarding management of federal forests encompassed by the Northwest Forest Plan (NWFP). Land managers with the U.S. Forest Service provided questions that helped guide preparation of the synthesis. It builds on the 10-, 15-, and 20-year NWFP monitoring reports and synthesizes the vast body of relevant scientific literature that has accumulated in the 24 years since the NWFP was initiated. Here we summarize scientific findings and considerations for management that were identified in the full science synthesis. We find that the NWFP has protected dense old-growth forests and has maintained habitat for northern spotted owls (Strix occidentalis caurina), marbled murrelets (Brachyramphus marmoratus), aquatic organisms, and other species despite losses from wildfire and low levels of timber harvest on federal lands. Other goals have not been met, including producing a sustainable supply of timber and the broad use of adaptive management. New concerns include the impact of nonnative barred owls (Strix varia) on northern spotted owl populations, effects of fire suppression on forest succession, fire behavior in dry forests, and the effects of climate change and invasive species on native biodiversity. A growing body of scientific evidence supports the importance of active management or restoration inside and outside NWFP reserves to promote a full complement of biodiversity and ecological resilience. Active management to promote heterogeneity of vegetation conditions is important to sustaining tribal ecocultural resources. Declines in agency capacity, lack of markets for small-diameter wood, lack of wood processing infrastructure in some areas, and lack of social agreement have limited the amount of active management for restoration on federal lands. All management choices involve social and ecological tradeoffs related to the goals of the NWFP. Collaboration, risk management, adaptive management, and monitoring are considered elemental approaches in dealing with complex social and ecological systems with futures that are difficult to predict and affect through policy and land management actions.
Early prediction of tumour response to PRRT

Summary [177Lu-DOTA0, Tyr3]-octreotate (177Lu-octreotate) in peptide receptor radionuclide therapy (PRRT) offers direct intra-therapeutic dosimetry. The aim of this study was to compare tumour and non-tumour parameters and assess intra-individual variations. Patients, methods: Retrospective analysis of 53 consecutive PRRT treatment cycles (mean activity of 7.53 ± 0.46 GBq 177Lu-octreotate, intended four cycles at intervals of 10–14 weeks, standard nephroprotection) in 27 GEP NET patients. Extended planar dosimetry with serial wholebody imaging on selected, non-superimposed tumour and non-tumour regions; liver (LM), bone (BM), and other (OM) metastases. The per-cycle variation was compared with posttreatment response (CT/MRI three months post-treatment, modified SWOG criteria). Results: Residence time in tumor lesions (133–147 h) exceeded that in kidneys (93 h). Tumour-to-kidney absorbed dose ratios ranged from 14 to 28 (LM, BM, OM). Intra-individual per-cycle dose variation was insignificant for kidneys, but significant for metastases (LM, BM, and OM; p < 0.05). The mean per-cycle decrease of tumour absorbed dose (_D/A0[%]) was linked to morphologic response after PRRT. A mean decrease of >20% was predictive of a partial or minor remission in all 11 evaluable patients, while absent significant dose reduction indicated stable or progressive disease in 4/5 patients. The dose decrease was unrelated to volume effects and also observed for BM. Conclusion: Besides confirmation of a favourable tumour-to-kidney parameter relation for 177Lu-octreotate, stepwise intra-lesional comparison seems to imply a prognostic impact of tumor dosimetry: The early per-cycle change _D/A0 between treatment cycles may predict the outcome after PRRT. Larger studies are needed to confirm this finding.
Alignment of Genetic and Physical Maps of Gibberella zeae

ABSTRACT We previously published a genetic map of Gibberella zeae (Fusarium graminearum sensu lato) based on a cross between Kansas strain Z-3639 (lineage 7) and Japanese strain R-5470 (lineage 6). In this study, that genetic map was aligned with the third assembly of the genomic sequence of G. zeae strain PH-1 (lineage 7) using seven structural genes and 108 sequenced amplified fragment length polymorphism markers. Several linkage groups were combined based on the alignments, the nine original linkage groups were reduced to six groups, and the total size of the genetic map was reduced from 1,286 to 1,140 centimorgans. Nine supercontigs, comprising 99.2% of the genomic sequence assembly, were anchored to the genetic map. Eight markers (four markers from each parent) were not found in the genome assembly, and four of these markers were closely linked, suggesting that >150 kb of DNA sequence is missing from the PH-1 genome assembly. The alignments of the linkage groups and supercontigs yielded four independent sets, which is consistent with the four chromosomes reported for this fungus. Two proposed heterozygous inversions were confirmed by the alignments; otherwise, the colinearity of the genetic and physical maps was high. Two of four regions with segregation distortion were explained by the two selectable markers employed in making the cross. The average recombination rates for each chromosome were similar to those previously reported for G. zeae. Despite an inferred history of genetic isolation of lineage 6 and lineage 7, the chromosomes of these lineages remain homologous and are capable of recombination along their entire lengths, even within the inversions. This genetic map can now be used in conjunction with the physical sequence to study phenotypes (e.g., fertility and fitness) and genetic features (e.g., centromeres and recombination frequency) that do not have a known molecular signature in the genome.
In vitro growth and drug sensitivity of tumor colony-forming units from human tumor xenografts.

To investigate the feasibility of using tissue obtained from human tumor xenografts for in vitro screening of antineoplastic agents, we grew human tumor colony-forming units (CFU) in semisold agar from xenografts serially passaged in nude mice. Growth of human tumor CFU was accomplished from nine xenografts representing five different histological tumor types (ovarian carcinoma, adenocarcinoma of the colon, malignant melanoma, epidermoid carcinoma of the lung, and malignant astrocytoma). Cloning efficiency ranged from 0.04 to 0.1% and showed significant variability both between tumor types and between individual animals bearing the same type of xenograft. A high percentage of tumor CFU was in S phase [47 +/- 20% (S.D.)] as determined by the thymidine "suicide" technique. The number of tumor CFU observed increased linearly with increasing numbers of cells plated. In vitro drug sensitivity of the tumor CFU was assessed to Adriamycin, cis-platinum, and melphalan. The patterns of drug sensitivity were found to be reproducible and stable over a period of 9 months. Drug sensitivity curves to Adriamycin for five xenografts representing four tumor types showed complex patterns with plateau portions similar to those described for tumor CFU from primary tumors. The rank order of sensitivity of the tumors was compared to that of normal granulocyte-macrophage progenitors and, with the exception of the melanomas, was found to correlate well with clinical experience (order of sensitivity = colon less than ovary less than bone marrow). Growth of human tumor CFU from xenografts represents a reproducible and stable means for the study of the biology of tumor CFU and has potential applications as a means for screening new anticancer agents.
Short Article: Reducing the Own-Race Bias in Face Recognition by Shifting Attention

The own-race bias (ORB) in face recognition can be interpreted as a failure to generalize expert perceptual encoding developed for own-race faces to other-race faces. Further, black participants appear to use different features to describe faces from those used by white participants (Shepherd & Deregowski, 1981). An experiment is reported where the size of the ORB was assessed using a standard face recognition procedure. Four groups were tested at two time intervals. One group received a training regime involving learning to distinguish faces that varied only on their chin, cheeks, nose, and mouth. Three control groups did not receive this training. The ORB, present prior to training, was reduced after the critical perceptual training. It is concluded that the ORB is a consequence of a failure of attention being directed to those features of other race faces that are useful for identification.
Boredom at work: towards a dynamic spillover model of need satisfaction, work motivation, and work-related boredom

ABSTRACT Boredom occurs regularly at work and can have negative consequences. This study aimed to increase insight in the antecedents and processes underlying the development of work-related boredom by (a) examining whether work-related need satisfaction and the quality-of-work motivation mediate the associations between the work characteristics defined in the Job Characteristics Model and work-related boredom, (b) investigating if this motivational process operates both on an “enduring,” between-person level and a daily within-person level, and (c) examining if and how daily experiences of work-related boredom spill over to the next day. Data among employees were collected in a cross-sectional study (N = 115) and a 5-day daily diary study (N = 90). Study 1 results showed that need satisfaction and quality-of-work motivation mediated the association between work characteristics and work-related boredom. This motivational process was also found on a day-to-day basis in Study 2. This study further revealed that work-related boredom spills over to the next day through its associations with increased negative work attitudes and decreased intrinsic motivation. These findings provide insight in the process by which momentary experiences of boredom at work may develop into a more enduring experience of work-related boredom.