Miracle-dz/UniFAR-FTUs huggingface dataset:
Regulating Frequency of a Migrating Web Crawler based on Users Interest

Due to the lack of efficient refresh techniques, current crawlers add unnecessary traffic to the already overloaded Internet. Frequency of visits to sites can be optimized by calculating refresh time dynamically. It helps in improving the effectiveness of the crawling system by efficiently managing the revisiting frequency of a website; and appropriate chance to each type of website to be crawled at appropriate rate. In this paper we present an alternate approach for optimizing the frequency of migrants for visiting web sites based on user’s interest. The proposed architecture adjusts the frequency of revisit by dynamically assigning a priority of revisiting to a site by computing the priority based on previous experience that how many times the crawler founds changes in content in ‘n’ visits and the interest of the users shown in the websites. KeywordsSearch Engine, Migrant, Frequency regulation, Dynamic priority, User interest
The Optimal System Design of the Online Electric Vehicle Utilizing Wireless Power Transmission Technology

The Online Electric Vehicle (OLEV) is an innovative electric transportation system developed by the Korea Advanced Institute of Science and Technology (KAIST), Daejon, Korea, which remotely picks up electricity from power transmitters buried underground. Unlike a conventional electric vehicle that requires significant recharging downtime, the battery in the OLEV can be charged while the vehicle is in motion. Selected as one of “the 50 Best Innovations of 2010” by TIME Magazine, the OLEV is considered as a potential solution for the next-generation electric public transportation system in South Korea. The prototype of the OLEV has been developed, and the commercialization process is now in progress. One of the main tasks to achieve the successful commercialization of the system is to determine economically how to allocate the power transmitters on the given routes and how to evaluate the right battery capacity for the vehicle. The allocation of the power transmitters and the size of the battery capacity directly affect the initial infrastructure cost. In this paper, we first introduce the system design issues of the mass transportation system operating with OLEV. We then present a mathematical model and an optimization method to allocate economically the power transmitters and to determine the battery capacity of the OLEV-based mass transportation system. The particle swarm optimization (PSO) algorithm is used as the solution method for the optimization problem. Numerical problems with sensitivity analysis are presented to show the validity of the mathematical model and solution procedure.
Balance and impedance control for biped humanoid robot locomotion

Describes a locomotion control for biped humanoid robots based on balance and and impedance control. The balance control is employed during a whole walking cycle, which can compensate for the moments generated by the biped walking. In the control, the compensatory motion of the trunk and waist is calculated from the trajectories of the lower-limbs, arms, head and ZMP. The parameters of the impedance control are adjusted in real-time according to the gait phase. The large damping coefficient of the impedance is applied to the landing leg to absorb the impact/contact force during the contact phase, while the large stiffness is given to increase the momentum reduced by the viscosity of the landing leg during the first half single support phase. By dynamic walking experiments using a human-like robot WABIAN-RIII, the validity of the proposed control methods is verified.
Current views on structure and function of endothelial adhesion molecules.

The consecutive events that occur in a living body following injury are commonly referred to as inflammation (inflammare: to set on fire). In the first century A.D. observations of clinical patients had allowed Cornelius Celsus to formulate his famous “cardinal signs” of inflammation: calor, rubor, tumor and dolor. These still holds true today. The four characteristics of inflammation are redness and swelling with heat and pain. From these early studies it was obvious that blood vessels played an important role in the development of an inflammatory process, which coincided with plasma leakage and accumulation of leucocytes in extravascular tissue.
PI Factor, a Novel Type Quorum-sensing Inducer Elicits Pimaricin Production in Streptomyces natalensis*

A chemically novel autoinducer (PI factor) has been purified from cultures of the pimaricin producer Streptomyces natalensis ATCC27448. The chemical structure of the PI molecule was identified as 2,3-diamino-2,3-bis (hydroxymethyl)-1,4-butanediol. Pimaricin biosynthesis in S. natalensis npi287, a mutant impaired in pimaricin production, was restored by supplementation with either A-factor from Streptomyces griseus IFO13350 or with PI factor. S. natalensis did not synthesize A-factor. The PI autoinducer was active at very low concentrations (50–350 nm). A threshold level of 50 nm was required to observe the induction effect. The dose-response curve was typical of a quorum-sensing type mechanism. The biosynthesis of PI factor was associated with cell growth of S. natalensis, both in defined and complex media. Supplementation of the wild-type S. natalensis with pure PI (300 nm) resulted in a stimulation of 33% of the production of pimaricin. These results indicate that the endogenous synthesis of PI factor is limiting for pimaricin biosynthesis in the wild-type strain. This water-soluble PI factor belongs to a novel class of autoinducers in Streptomyces species different from the classical butyrolactone autoinducers. Because restoration of pimaricin production in the npi287 mutant is conferred by both A-factor and PI factor, S. natalensis appears to be able to integrate different quorum signals from actinomycetes.
Cloning and characterization of the Brucella ovis heat shock protein DnaK functionally expressed in Escherichia coli

The Brucella ovis dnaK gene, homolog to the eukaryotic hsp70 genes, was cloned by using a Drosophila melanogaster probe. Comparison of B. ovis and Escherichia coli sequences revealed a similar organization for the dnaK and dnaJ genes and putative regulatory signals. In E. coli transfected with the cloned fragment, B. ovis hsp70 was expressed at 30 and 50 degrees C apparently under the control of its own promoter. The recombinant protein and a B. ovis native protein displaying the same molecular weight were both recognized by anti-E. coli DnaK serum. Native B. ovis protein was also recognized by sera of sheep either infected or vaccinated with an attenuated Brucella strain, suggesting that Brucella hsp70 could be up-regulated during host colonization. A thermosensitive E. coli dnaK mutant transfected with the cloned fragment recovered colony-forming ability at 42 degrees C, showing that the B. ovis DnaK protein could behave as a functional heat shock protein in E. coli.
Physiological Effects of Human/Companion Animal Bonding

Blood pressure, heart rate, and respiratory rate were recorded in 24 subjects during 3 9-minute measurement sessions in which they petted an unknown dog, petted a dog with whom a companion bond had been established, or read quietly. Based on the findings of this study, several conclusions were drawn: (1) There is a significant difference in changes over time in both systolic and diastolic blood pressure between petting a dog with whom a companion bond has been established and petting a dog with whom no bond exists; (2) the decreases in both systolic and diastolic blood pressure that occur during petting a dog with whom a companion bond has been established parallel the relaxation effect of quiet reading; and (3) there is a “greeting response” to the entry of a dog with whom a companion bond has been established, which results in significantly higher systolic and diastolic pressures than the response either to an unknown dog or to reading.
Coping With Individual-Group Incongruity

Extended Abstract Guilt results from “essentially private recognition that one has violated a personal standard” (Kugler and Jones 1992); Its anticipation influences people’s behaviors (Baumeister, Stillwell, and Heatherton 1994). Guilt appeals have been studied in marketing (Ghingold, 1980; Pinto & Priest, 1991; Ruth & Faber, 1988a, 1988b). Though not as their main focus, numerous studies implicitly assume the influence of guilt behind impulsive buying (Rook 1987), overspending (Pirisi 1995), pre-commitment to reward programs (Kivetz and Simonson 2002), compulsive consumption behavior (O’Guinn and Faber 1989), and donating to charities (Strahilevitz and Myers 1998). More specifically, some examined advertising campaigns that attempt to arouse guilt (Wheatley & Oshikawa, 1970; Huhmann and Brotherton, 1997); others investigated consumer reactions to advertisements containing guilt appeals (Ghingold, 1980). Guilt is intrapersonal, mainly arising from transgressions of personal values or societal norms
The Influence of IT and Knowledge on Firm Agility and Performance

In this conceptual paper, we describe how IT and knowledge strategies, resources and capabilities coevolve and collectively influence firm agility. We briefly examine links between business strategy and IT and knowledge strategies, and also between agility and firm performance. To do so, we conduct a comprehensive literature review. Using the resource-based view of the firm and a dynamic capabilities perspective, we build a research model and put forward eight propositions to be tested in future studies. We argue that a holistic view that takes into account interacting, co-evolving aspects of business, IT and knowledge is necessary if we are to understand the drivers and impacts of firm agility in complex, dynamic business ecosystems.
Does combined cognitive training and physical activity training enhance cognitive abilities more than either alone? A four-condition randomized controlled trial among healthy older adults

Cognitive training and aerobic training are known to improve cognitive functions. To examine the separate and combined effects of such training on cognitive performance, four groups of healthy older adults embarked on a 4 months cognitive and/or mild aerobic training. A first group [n = 33, mean age = 80 (66–90)] engaged in cognitive training, a second [n = 29, mean age = 81 (65–89)] in mild aerobic training, a third [n = 29, mean age = 79 (70–93)] in the combination of both, and a fourth [n = 31, mean age = 79 (71–92)] control group engaged in book-reading activity. The outcome was a well-validated multi-domain computerized cognitive evaluation for older adults. The results indicate that, when compared to older adults who did not engage in cognitive training (the mild aerobic and control groups) older adults who engaged in cognitive training (separate or combined training groups) showed significant improvement in cognitive performance on Hand-Eye Coordination, Global Visual Memory (GVM; working memory and long-term memory), Speed of Information Processing, Visual Scanning, and Naming. Indeed, individuals who did not engage in cognitive training showed no such improvements. Those results suggest that cognitive training is effective in improving cognitive performance and that it (and not mild aerobic training) is driving the improvement in the combined condition. Results are discussed in terms of the special circumstances of aerobic and cognitive training for older adults who are above 80 years of age.
Cardioembolic Stroke

ABSTRACT Purpose of Review: Cardioembolic stroke is common and disproportionately more disabling than nonembolic mechanisms of stroke. Its incidence is expected to rise because of the age-related incidence of atrial fibrillation and an aging population. This article summarizes the different causes of cardioembolism and outlines current management guidelines. Recent Findings: Since cardioembolic stroke is not a single disease entity, its diagnosis requires initial clinical suspicion and a comprehensive evaluation, including ECG, echocardiography, brain imaging, and cardiac monitoring. Atrial fibrillation is the most common cause of cardioembolic stroke, and anticoagulation is usually recommended. This article reviews risk stratification models to assist in the decision-making process and highlights the increased use of novel oral anticoagulants for stroke prevention in atrial fibrillation. New data support the importance of prolonged cardiac monitoring for diagnosing occult atrial fibrillation. Current data on other mechanisms of cardioembolic stroke, such as prosthetic heart valves and aortic arch atherosclerosis, are also presented, and the available evidence regarding patent foramen ovale closure in cryptogenic stroke is summarized. Summary: Cardioembolism is an important cause of ischemic stroke, with diverse underlying mechanisms requiring a tailored approach to diagnosis, management, and prevention.
Proapoptotic bcl-2 family members, Bax and Bak, are essential for developmental photoreceptor apoptosis.

PURPOSE Apoptosis has been implicated in retinal development and degeneration, but the specific apoptotic pathways used are incompletely understood. The purpose of this study was to characterize the roles in retinal development of the proapoptotic Bcl-2 family members Bax and Bak. METHODS Eyes from mice at postnatal day (P)7, during the peak of developmental apoptosis in the retina, were processed for TdT-dUTP terminal nick-end labeling (TUNEL) to determine whether Bax knockout or double Bax/Bak knockout causes a defect in developmental apoptosis. Adult (>2-month-old) eyes from wild-type, Bak(-/-), Bax(-/-), and Bax(-/-)Bak(-/-) mice were analyzed by histology and immunocytochemistry to identify persistent retinal cells. RESULTS Adult Bax(-/-)Bak(-/-) eyes showed significant increases in the number of inner retinal cells, with an almost complete absence of TUNEL-positive cell death at P7. Some of these persistent cells in the inner retina notably included rod photoreceptors that normally undergo apoptosis after failure to migrate to the outer retina. These inner nuclear layer (INL) rods contained markers of early rod differentiation: rod opsin, arrestin, and recoverin. However, they did not form ectopic outer segments or contain the associated markers ROM-1, peripherin-2, and RP1. CONCLUSIONS Bax and Bak are important for retinal development and are the first apoptotic factors identified as essential for developmental photoreceptor apoptosis. Future studies will investigate the potential role of Bax and Bak in mediating pathologic photoreceptor death.
Kernel Integrity Protection from Untrusted Extensions Using Dynamic Binary Instrumentation

Device drivers are the major source of concern for maintaini ng security and reliability of an operating system. Many of these device drivers, developed by third parties, get installed in kerne l address space as extensions. These extensions are implicitly trust ed and are allowed to interact with each other and kernel through welld fined interfaces and by sharing data in an uncontrolled manner. Un fortunately, the assumed trust leaves commodity OSes vulnerab le to misbehaving and malicious kernel extensions. Over the years, researchers have attempted to address the pr oblem of kernel extensions misbehaving and potentially compr o ising the kernel. This problem has been approached using compi letime and run-time checking/annotations [4, 8, 14, 15], hard w re protection domains [7, 14], by moving extensions into user s pace [6, 15], and by extending virtual machines (VMs) and hypervi sors with the ability to introspect and monitor a running kernel a nd its extensions [12, 13, 16]. While these approaches have alr eady achieved many of the goals of this research, all suffer from a t least one of the following issues: i) they depend on VMs/hyperviso rs, and thus limit the breadth of extensions which can be monitor ed, or; ii) they require a custom compilation toolchain and/or k e nel modifications, and so limit the likelihood of their integrat ion with existing OS build processes. Clearly, a high level of security against misbehaving kerne l extensions can be achieved and is desirable. We think that the b est way to encourage the adoption of secured kernel extensions b y existing commodity kernels is by showing that arbitrary exten sio s can be securely executed. Our approach uses dynamic binary i strumentation (DBI) to achieve this goal [2, 3]. We have implemented a proof-of-concept that enforces control-flow in tegrity (CFI) constraints [1] in the Linux kernel using the DynamoRI O Kernel (DRK) DBI framework [9, 10]. Our choice of DRK as a host platform was motivated by its ability to provide fine-gr ained control over instrumentation. Our prototype is loaded as a k ernel module and transparently monitors all control-flow transfe rs while the kernel is running. Our system is able to detect and report unauthorized control transfers by potentially malicious kerne l modules. Building on this, we intend to develope a security system whi ch will protect the kernel from multiple type of malicious acti vi es by untrusted extensions. We are hopeful of achieving high le vel
Magellan : Toward Automatic Mapping from High-Level SDN Programs to Low-Level , Optimized Datapath Pipelines Paper

Despite the emergence of pipelining as a key feature of nextgeneration SDN data-path models, there are no previous studies on how to automatically design, populate, and update datapath pipelines from completely datapath-oblivious, highlevel SDN programs. We refer to this as the pipeliningoblivious programming challenge. This paper presents Magellan, the first systematic investigation of the challenge. Including multiple novel algorithms, including a novel, efficient combination of symbolic map and flow-rule guided execution to compute compact pipeline contents, and an efficient pipeline design algorithm to automatically optimize pipeline resource usage and satisfy hardware constraints, Magellan achieves automatic design, population, and updates of datapath pipelines from completely datapath-oblivious, highlevel SDN programs. We implement Magellan and apply it to multiple high-level programs to demonstrate its benefits.
Towards error-free interaction

Human-machine interaction (HMI) relies on pat- tern recognition algorithms that are not perfect. To improve the performance and usability of these systems we can utilize the neural mechanisms in the human brain dealing with error awareness. This study aims at designing a practical error detection algorithm using electroencephalogram signals that can be integrated in an HMI system. Thus, real-time operation, customization, and operation convenience are important. We address these requirements in an experimental framework simulating machine errors. Our results confirm the presence of brain potentials related to processing of machine errors. These are used to implement an error detection algorithm emphasizing the differences in error processing on a per subject basis. The proposed algorithm uses the individual best bipolar combination of electrode sites and requires short calibration. The single-trial error detection performance on six subjects, characterized by the area under the ROC curve ranges from 0.75 to 0.98.
Is the periprostatic anesthetic blockade advantageous in ultrasound-guided prostate biopsy?

OBJECTIVE To assess the benefit of the periprostatic administration of lidocaine previously to ultrasound-guided prostate biopsy. MATERIALS AND METHODS In the period from April to October 2002, forty patients underwent ultrasound-guided prostate biopsy due to increased PSA or abnormal digital rectal examination. A randomized double-blind study was performed, where the patients received an injection of lidocaine 2% or saline solution, in a total of 10 ml periprostatic. Immediately following the biopsy, the pain associated to the procedure was assessed, using a visual analogical scale from 0 to 10. The mean number of fragments collected per patient in the biopsies was 11.3. The statistical analysis used for assessment of pain was the Student's t, with p < 0.05 being significant. RESULTS The groups were homogeneous concerning the anthropometrical data. In relation to pain, those patients in the groups that underwent biopsy with the use of lidocaine presented a maximum score of 6, while in the group that underwent biopsy with the use of saline solution, 4 patients presented score 7 ou 8. The mean score and standard deviation with lidocaine were 2.55 +/- 2.34 (CI 95% = 1.53 to 3.57) and with saline solution were 3.75 +/- 2.52 (CI 95% = 2.66 +/- 4.84) with no statistical significant difference between the groups. CONCLUSION The lidocaine injection did not show statistical difference when compared with saline solution in the periprostatic blockade during echo-guided prostate biopsy.
Path loss measurements and analysis for high-speed railway viaduct scene

This paper presents the results of path loss measurements in "Zhengzhou-Xi'an" high-speed railway environment at 930 MHz band. A transmitter directional antenna height of 20~30 meters above the rail surface and a receiver omni-directional antenna height of 3.5 meters were used on the high-speed viaducts height of 10~30 meters above the ground. An automatic acquisition system was utilized in the measurements. The model makes distinctions among different terrain. The results of measurements provide practical values for path loss exponent and standard deviation of shadowing affected by the viaduct factor in suburban, open area, mountain area and urban propagation regions where the high-speed trains travel. Based on the measurement data, the empirical path loss model was developed, which could be used for predicting the path loss for the future railway communication systems, and provide the facilities for network optimization.
Simultaneous Anisotropic Tomography with Rock Physics Constraints - Gulf of Mexico Example

Simultaneously solving for velocity, epsilon, and delta in anisotropic tomography is very challenge. Surface seismic data only is not sufficient for this joint problem. In this work, a model covariance function was built using rock physics to constrain the joint anisotropic tomography. An example from Gulf of Mexico was presented to demonstrate the effectiveness of the method.
Improving Reliability of Dynamic Software Updating Using Runtime Recovery

Dynamic software updating (DSU) is a technique that can update running software systems without stopping them. Most existing approaches require programmer participation to guarantee the correctness of dynamic updating. However, manually preparing dynamic updating is error-prone and time-consuming. Therefore, other approaches prefer to aggressively perform updating without programmer intervention, which may definitely lead to unanticipated runtime errors. To reduce human effort and enhance the reliability for dynamic updating, we leverage automatic runtime recovery (ARR) techniques to recover runtime errors caused by improper dynamic updating. This paper presents ADSU, a fully automatic DSU system using ARR. We evaluate ADSU with real updates from widely used open source software systems, i.e., Apache Tomcat, Apache FTP Server and jEdit. The preliminary results have shown that ADSU succeeds in automatically applying 11 of 16 real-world updates that existing counterparts cannot.