Miracle-dz/UniFAR-FTUs huggingface dataset:
Genotypic Difference in Silicon Uptake and Expression of Silicon Transporter Genes in Rice1

Rice (Oryza sativa) is a highly silicon (Si)-accumulating species that shows genotypic differences in Si accumulation. We investigated the physiological and molecular mechanisms involved in the genotypic difference in Si uptake between the japonica var. Nipponbare and the indica var. Kasalath. Both the Si concentration in the shoot and the Si uptake per root dry weight were higher in Nipponbare than in Kasalath grown in either soil or nutrient solution. The Si uptake by a single root was also higher in Nipponbare than in Kasalath. A kinetics study showed that Nipponbare and Kasalath had a similar Km value, whereas the Vmax was higher in Nipponbare. The expression of two Si transporter genes (Low silicon rice 1 [Lsi1] and Lsi2) investigated using real-time reverse transcription polymerase chain reaction revealed higher expression of both genes in Nipponbare than in Kasalath. Immunostaining with Lsi1 and Lsi2 antibodies revealed a similar pattern of subcellular localization of these two Si transporters in both varieties; Lsi1 and Lsi2 were localized at the distal and proximal sides, respectively, of both exodermis and endodermis of the roots. These results revealed that the genotypic difference in the Si accumulation results from the difference in abundance of Si transporters in rice roots.
Experimental studies of shift-work. II. Stabilized 8-hour shift systems.

Abstract Thirty-one subjects were employed in an experiment to determine whether the relationship between efficiency at mental tasks and the circadian rhythm of body temperature observed in an earlier study was affected by an increase in the length of the duty-spell from 4 to 8 hours. Subjects wore assigned either to a control ‘ day ’ shift (O800–1600), a ‘ night ’ shift (2200–0600) or a ( morning ) shift (0400–1200), and were tested for a period of 12 consecutive days on the same shift. The control shift-workers showed no consistent effects of fatigue due to the increased length of the duty-spell. Adaptation of temperature rhythm to work on the night shift was only partial, but was relatively closely reflected in the recorded performance trends. Very little adaptation to work on the morning shift was observed, and performance was thought to have been affected by partial sleep deprivation. It was concluded that body-temperature was as effective a predictor of overall mental efficiency in most industrial-t.
A Phosphate-Regulated Promoter for Fine-Tuned and Reversible Overexpression in Ostreococcus: Application to Circadian Clock Functional Analysis

Background The green picoalga Ostreococcus tauri (Prasinophyceae), which has been described as the smallest free-living eukaryotic organism, has minimal cellular ultra-structure and a very small genome. In recent years, O. tauri has emerged as a novel model organism for systems biology approaches that combine functional genomics and mathematical modeling, with a strong emphasis on light regulated processes and circadian clock. These approaches were made possible through the implementation of a minimal molecular toolbox for gene functional analysis including overexpression and knockdown strategies. We have previously shown that the promoter of the High Affinity Phosphate Transporter (HAPT) gene drives the expression of a luciferase reporter at high and constitutive levels under constant light. Methodology/Principal Findings Here we report, using a luciferase reporter construct, that the HAPT promoter can be finely and reversibly tuned by modulating the level and nature of phosphate in culture medium. This HAPT regulation was additionally used to analyze the circadian clock gene Time of Cab expression 1 (TOC1). The phenotype of a TOC1ox/CCA1:Luc line was reverted from arrhythmic to rhythmic simply by adding phosphate to the culture medium. Furthermore, since the time of phosphate injection had no effect on the phase of CCA1:Luc expression, this study suggests further that TOC1 is a central clock gene in Ostreococcus. Conclusions/Perspectives We have developed a phosphate-regulated expression system that allows fine gene function analysis in Ostreococcus. Recently, there has been a growing interest in microalgae as cell factories. This non-toxic phosphate-regulated system may prove useful in tuning protein expression levels quantitatively and temporally for biotechnological applications.
A comparative study on feature selection and adaptive strategies for email foldering

Email foldering is a challenging problem mainly due to its high dimensionality and dynamic nature. This work presents a comparison of several feature extraction/ selection and adaptive strategies aimed at coping with these two main difficulties. To this end, several studies have been carried out using the ENRON email dataset in order to test how different configuration settings for feature extraction/selection and adapting processes can affect the classification performance.
The distribution of nuchal translucency at 10–13 weeks of pregnancy

There is a need for a simple method of expressing nuchal translucency measurement in early pregnancy that will allow for gestational age and be useful in screening for Down's syndrome. To achieve this objective, we conducted a prospective study of 561 women with singleton pregnancies that were not affected by Down's syndrome at 10–13 weeks of gestation. Nuchal translucency measurements and crown rump length measurements were determined. Nuchal translucency measurement increased by about 17 per cent per week. Expressing the result as a multiple of the median (MOM) nuchal translucency for a given crown rump length allowed for this increase with gestational age and yielded a distribution of values that was approximately Gaussian. About 96 per cent of values lay between 0·5 and 2·0 MOM. The variance and therefore the false‐positive rate of nuchal translucency were significantly reduced by recording several measurements and using the average: for example, the false‐positive rate reduced from 8·3 per cent to 5·0 per cent if the average of six measurements were used instead of one—a potential 40 per cent reduction in the false‐positive rate if the test were used in screening. Estimating the distribution of nuchal translucency in MOM values will assist in specifying the statistical parameters to be used in prenatal screening for Down's syndrome and the use of repeated nuchal translucency measurements is expected to have a useful effect on reducing the screening false‐positive rate at a given MOM cut‐off level. © 1998 John Wiley & Sons, Ltd.
Handling Pragmatic Information With A Reversible Architecture

This paper propo~s a reversible architecture to handle not orily syntactic and semantic information but also pragmatic information. • I Existing architectures cannot represent pragmatic informatioil explicitly, and lack reasoning capability;given insufficient information. I argue that the techniques of plan representation and approximate reasoning are, in the enhanced argumentation system proposed here, effective for solving these problems.
Effects of the bilayer nano-hydroxyapatite/mineralized collagen-guided bone regeneration membrane on site preservation in dogs

This study was aimed at assessing the effects of the porous mineralized collagen plug with or without the bilayer mineralized collagen-guided bone regeneration membrane on alveolar ridge preservation in dogs. The third premolars in the bilateral maxilla of mongrel dogs (N = 12) were extracted. Twenty-four alveolar sockets were thus randomly divided into three groups: membrane + collagen plug (MP, n = 8), nonmembrane + collagen plug (NP, n = 8) and blank group without any implantation (BG, n = 8). Radiographic assessment was carried out immediately and in the 2nd, 6th, and 12th week after surgery. The bone-repairing effects of the two grafts were respectively evaluated by clinical observation, X-ray micro-computed tomography examination, and histological analysis in the 8th and 12th week after surgery. Three groups presented excellent osseointegration without any inflammation or dehiscence. X-ray micro-computed tomography and histological assessment indicated that the ratios of new bone formation of MP group were significantly higher than those of NP group and BG group in the 8th and 12th week after surgery (P < 0.05). As a result, the porous mineralized collagen plug with or without the bilayer mineralized collagen-guided bone regeneration membrane could reduce the absorption of alveolar ridge compared to BG group, and the combined use of porous mineralized collagen plug and bilayer mineralized collagen-guided bone regeneration could further improve the activity of bone regeneration.
Alphaproteobacteria class. nov.

Al.pha. pro.te. o.bac. te' ri.a. Gr. n. alpha name of first letter of Greek alphabet; Gr. n. Proteus ocean god able to change shape; Gr. n. bakterion a small rod; M.L. fem. pl. n. Alphaproteobacteria class of bacteria having 16S rRNA gene sequences related to those of the members of the order Caulobacterales. Proteobacteria / Alphaproteobacteria Keywords: Alphaproteobacteria class. nov.; Caulobacterales; Proteobacteria phyl. nov.
Symbiotic Data Mining for Personalized Spam Filtering

Unsolicited e-mail (spam) is a severe problem due to intrusion of privacy, online fraud, viruses and time spent reading unwanted messages. To solve this issue, Collaborative Filtering (CF) and Content-Based Filtering (CBF) solutions have been adopted. We propose a new CBF-CF hybrid approach called Symbiotic Data Mining (SDM), which aims at aggregating distinct local filters in order to improve filtering at a personalized level using collaboration while preserving privacy. We apply SDM to spam e-mail detection and compare it with a local CBF filter (i.e. Naive Bayes). Several experiments were conducted by using a novel corpus based on the well known Enron datasets mixed with recent spam. The results show that the symbiotic strategy is competitive in performance when compared to CBF and also more robust to contamination attacks.
Work experience during higher education and post-graduation occupational outcomes: A comparative study on four European countries

This article examines the relationship between work experience acquired during higher education and post-graduation labour market outcomes in four European countries: Germany, Italy, Norway and Spain. A theoretical framework that shows in which institutional contexts work experience may be a ‘competitive advantage’ for young graduates is developed. In the empirical analysis, data from the Higher Education and Graduate Employment in Europe (CHEERS) and Research into Employment and Professional Flexibility (REFLEX) surveys are used to examine the effect of a typology of student employment (accounting for both length and coherence of work experience with the field of study attended) on several occupational outcomes 4–5 years after graduation. The empirical results show that, in Italy and especially in Spain, work activities during tertiary education are associated with better labour market positions after graduation: any type of work experience increases employability and reduces the risk of unemployment, and furthermore, previous work experience – especially when coherent with the field of study – decreases the probability of skill mismatch in future occupations. The effect of student employment, however, is smaller for most outcomes in Germany and negligible in Norway.
An Experimental Demonstration of the Binaural Ratio as a Factor in Auditory Localization

TABLE OF CONTENTS Page I. Historical 250 II. Experimental 271 A. The Demonstration of the Binaural Ratio as a Factor 271 (a) Lines of Argument 271 (i) Observers having a natural difference in sensitivity for the two ears show a constant tendency to displace the sound in the direction of the stronger ear; and, conversely, observers without this difference show no tendency toward right or left displacement (2) Changes in the ratio of sensitivity produced by plugging either of the two ears are followed by corresponding displacements of the sound toward the stronger ear (3) A natural tendency toward right or left displacement can be corrected by making the proper change in the ratio of sensitivity of the two ears (b) Description of Method and Apparatus 273 (c) Results 276 B. The Relative Importance of Intensity and Timbre as Factors in Localization 282 C. Individual Preferences' and Their Explanations for the Observers Used 290 D. The Question of Changes in these Preferences with Lapse of Time2 293 III. Summary of Results 294
Porphyromonas gingivalis Lipopolysaccharide Contains Multiple Lipid A Species That Functionally Interact with Both Toll-Like Receptors 2 and 4

ABSTRACT The innate host response to lipopolysaccharide (LPS) obtained from Porphyromonas gingivalis is unusual in that different studies have reported that it can be an agonist for Toll-like receptor 2 (TLR2) as well as an antagonist or agonist for TLR4. In this report it is shown that P. gingivalis LPS is highly heterogeneous, containing more lipid A species than previously described. In addition, purification of LPS can preferentially fractionate these lipid A species. It is shown that an LPS preparation enriched for lipid A species at m/z 1,435 and 1,450 activates human and mouse TLR2, TLR2 plus TLR1, and TLR4 in transiently transfected HEK 293 cells coexpressing membrane-associated CD14. The HEK cell experiments further demonstrated that cofactor MD-2 was required for functional engagement of TLR4 but not of TLR2 nor TLR2 plus TLR1. In addition, serum-soluble CD14 effectively transferred P. gingivalis LPS to TLR2 plus TLR1, but poorly to TLR4. Importantly, bone marrow cells obtained from TLR2−/− and TLR4−/− mice also responded to P. gingivalis LPS in a manor consistent with the HEK results, demonstrating that P. gingivalis LPS can utilize both TLR2 and TLR4. No response was observed from bone marrow cells obtained from TLR2 and TLR4 double-knockout mice, demonstrating that P. gingivalis LPS activation occurred exclusively through either TLR2 or TLR4. Although the biological significance of the different lipid A species found in P. gingivalis LPS preparations is not currently understood, it is proposed that the presence of multiple lipid A species contributes to cell activation through both TLR2 and TLR4.
Identification of Human Semiochemicals Attractive to the Major Vectors of Onchocerciasis

Background Entomological indicators are considered key metrics to document the interruption of transmission of Onchocerca volvulus, the etiological agent of human onchocerciasis. Human landing collection is the standard employed for collection of the vectors for this parasite. Recent studies reported the development of traps that have the potential for replacing humans for surveillance of O. volvulus in the vector population. However, the key chemical components of human odor that are attractive to vector black flies have not been identified. Methodology/Principal Findings Human sweat compounds were analyzed using GC-MS analysis and compounds common to three individuals identified. These common compounds, with others previously identified as attractive to other hematophagous arthropods were evaluated for their ability to stimulate and attract the major onchocerciasis vectors in Africa (Simulium damnosum sensu lato) and Latin America (Simulium ochraceum s. l.) using electroantennography and a Y tube binary choice assay. Medium chain length carboxylic acids and aldehydes were neurostimulatory for S. damnosum s.l. while S. ochraceum s.l. was stimulated by short chain aliphatic alcohols and aldehydes. Both species were attracted to ammonium bicarbonate and acetophenone. The compounds were shown to be attractive to the relevant vector species in field studies, when incorporated into a formulation that permitted a continuous release of the compound over time and used in concert with previously developed trap platforms. Conclusions/Significance The identification of compounds attractive to the major vectors of O. volvulus will permit the development of optimized traps. Such traps may replace the use of human vector collectors for monitoring the effectiveness of onchocerciasis elimination programs and could find use as a contributing component in an integrated vector control/drug program aimed at eliminating river blindness in Africa.
Internal versus External Locus of Control and College Admissions

An opportunity to validate further Rotter's I-E scale as a measure of felt mastery over the course of one's life was provided by the establishment of the Bard College Immediate Decision Plan. It was expected that students enrolled from this program would score more internally than students enrolled through the traditional admissions procedure. Results of the study of 150 students support this hypothesis.
From 2D Images to 3D Tangible Models: Autostereoscopic and Haptic Visualization of Martian Rocks in Virtual Environments

A planetary rover acquires a large collection of images while exploring its surrounding environment. For example, 2D stereo images of the Martian surface captured by the lander and the Sojourner rover during the Mars Pathfinder mission in 1997 were transmitted to Earth for scientific analysis and navigation planning. Due to the limited memory and computational power of the Sojourner rover, most of the images were captured by the lander and then transmitted to Earth directly for processing. If these images were merged together at the rover site to reconstruct a 3D representation of the rover's environment using its on-board resources, more information could potentially be transmitted to Earth in a compact manner. However, construction of a 3D model from multiple views is a highly challenging task to accomplish even for the new generation rovers (Spirit and Opportunity) running on the Mars surface at the time this article was written. Moreover, low transmission rates and communication intervals between Earth and Mars make the transmission of any data more difficult. We propose a robust and computationally efficient method for progressive transmission of multi-resolution 3D models of Martian rocks and soil reconstructed from a series of stereo images. For visualization of these models on Earth, we have developed a new multimodal visualization setup that integrates vision and touch. Our scheme for 3D reconstruction of Martian rocks from 2D images for visualization on Earth involves four main steps: a) acquisition of scans: depth maps are generated from stereo images, b) integration of scans: the scans are correctly positioned and oriented with respect to each other and fused to construct a 3D volumetric representation of the rocks using an octree, c) transmission: the volumetric data is encoded and progressively transmitted to Earth, d) visualization: a surface model is reconstructed from the transmitted data on Earth and displayed to a user through a new autostereoscopic visualization table and a haptic device for providing touch feedback. To test the practical utility of our approach, we first captured a sequence of stereo images of a rock surface from various viewpoints in JPL MarsYard using a mobile cart and then performed a series of 3D reconstruction experiments. In this paper, we discuss the steps of our reconstruction process, our multimodal visualization system, and the tradeoffs that have to be made to transmit multiresolution 3D models to Earth in an efficient manner under the constraints of limited computational resources, low transmission rate, and communication interval between Earth and Mars.
An unusual case of concomitant infection with chicken astrovirus and group A avian rotavirus in broilers with a history of severe clinical signs

A molecular study of intestinal samples from 21 broiler flocks with a history of enteritis revealed that 23.8% and 14.3% were positive for chicken astrovirus (CAstV) and avian rotavirus (ARV), respectively. CAstV and group A ARV were simultaneously detected in only one broiler flock. Birds in this group developed the significant intestinal lesions characterized by frothy contents, paleness, and thin intestinal walls. In this report we present an unusual case of runting stunting syndrome (RSS) with a history of high mortality and growth retardation in broiler chickens. We also make the first identification of CAstV and group A ARV in broiler chickens in Korea.
A Genetic Algorithm for joint resource allocation in Cooperative Cognitive Radio Networks

Existing literature in Cooperative Cognitive Radio Networks (CCRNs) always assumed a scenario where only one Primary User (PU) and several Secondary Users (SUs) coexist. However, in practice, multi-PUs and multi-SUs always coexist and the number of SUs is usually greater than that of PUs. Under such complex yet real scenarios, we assume that each PU not only allows a set of SUs to access its pre-allocated channel, but can leverage some of these SUs to improve its transmission rate via cooperative technologies. We consider a joint channel allocation and cooperation set partition problem in CCRNs, in which we aim to allocate a channel and assign a cooperation set that consists of several SUs for each PU, such that for a given period of time, the average transmission rates gained by all the users achieve maximum proportional fairness. We formulate the problem as a 0-1 non-linear programming model. Due to its NP-hardness, we propose a suboptimal Centralized Genetic Algorithm (CGA) for the problem. Extensive simulations demonstrate that CGA not only converges rapidly, but is shown to perform as well as 92% of the optimal solution delivered by brutal search, in terms of the fitness that reflects the fairness degree of the transmission performance gained by all the users.
Why good guys finish last

Despite the public’s growing dissatisfaction with unethical behavior in modern organizations, research suggests that individuals who blow the whistle in an attempt to stop illicit activity often suffer retaliation at the hands of those who stand to benefit from the wrongdoing. To date, relatively little work has been undertaken exploring the boundary conditions and mechanisms for when and why retaliation occurs, with perceived differences in power and resource dependence between the whistleblower and retaliator being offered as the primary explanations. In this article, we attempt to build upon this theoretical foundation by introducing cognitive (i.e., moral disengagement) and affective (i.e., moral emotions) mechanisms as underlying drivers of the whistleblowing–retaliation relationship. Additionally, we use the theoretical lens of system justification theory to explore how perceived threats to an individual’s ego, group, and/or system heighten cognitive and affective responses that drive an individual to retaliate in seemingly paradoxical ways. Implications for practice and future research directions are discussed.
Resting-State fMRI

Although brain plasticity is greatest in the first few years of life, the brain continues to be shaped by experience throughout adulthood. Advances in fMRI have enabled us to examine the plasticity of large-scale networks using blood oxygen level–dependent (BOLD) correlations measured at rest. Resting-state functional connectivity analysis makes it possible to measure task-independent changes in brain function and therefore could provide unique insights into experience-dependent brain plasticity in humans. Here, we evaluate the hypothesis that resting-state functional connectivity reflects the repeated history of co-activation between brain regions. To this end, we review resting-state fMRI studies in the sensory, motor, and cognitive learning literature. This body of research provides evidence that the brain’s resting-state functional architecture displays dynamic properties in young adulthood.