Miracle-dz/UniFAR-FTUs huggingface dataset:
Optimal gaze-based robot selection in multi-human multi-robot interaction

This paper presents a computer vision based system for interaction between multiple humans and multiple robots. Each human can “select” (obtain the undivided attention of) a robot by simply looking directly at it. This extends previous work whereby a single human can select one or more robots from a population. Each robot optimally assigns human identities to tracked faces in its camera view using a local Hungarian algorithm. Then the system finds the global optimal allocation of robot-to-human selections using a second, centralized, Hungarian algorithm. This is the first demonstration of optimal many-to-many robot-selection HRI.
Chemical composition and resistance-modifying effect of the essential oil of Lantana camara Linn

In this work, the chemical constituents, antibacterial and modulatory activities of the essential oil of Lantana camara Linn were studied. The essential oil was extracted from the leaves of L. camara by hydrodistillation method using Clevenger's apparatus and its chemical constituents were separated and identified by GC-MS, and the relative content of each constituent was determined by area normalization. Among the 25 identified components, bicyclogermacrene (19.42%), isocaryophyllene (16.70%), valecene (12.94%) and germacrene D (12.34%) were the main constituents. The oil was examined to antibacterial and modulatory activities against the multiresistant strains of Escherichia coli and Staphylococcus aureus by microdilution test. The results show an inhibitory activity to E. coli (MIC 512 μg/ml) and S. aureus (MIC 256 μg/ml). The synergism of the essential oil and aminoglycosides was verified too, with significant reduction of MICs (7 ×, 1250-5 μg/ml) against E. coli. It is suggested that the essential oil of Lantana camara Linn could be used as a source of plant-derived natural products with resistance-modifying activity.
On the Use of Single-Layered Subwavelength Rectangular Patch Elements for Broadband Folded Reflectarrays

The feasibility of using single-layered subwavelength rectangular patch elements for broadband folded reflectarrays is studied in this letter. The antenna is made of a feed horn, a planar lower reflector, and an upper polarizer. Different to existing folded reflectarray designs in the literature where a half- or near-half-wavelength unit cell is used for lower reflectors, this work employs subwavelength rectangular patch elements on a single-layered substrate for achieving a wide bandwidth of folded reflectarrays. The design is conducted at 10 GHz and composed of 1976 elements on a 405 × 405-mm2 aperture. The effect of the polarizers on the antenna's performance is also examined when they are integrated with folded reflectarray structures. The proposed folded reflectarray features a broadband performance with a compact and low-profile structure. The measured results show that the folded reflectarray with a 0. 3λ grid spacing realizes a 1-dB gain bandwidth of 16% with an aperture efficiency of 44%, which demonstrates better behavior than various existing folded reflectarrays. In addition, this superior performance is also comparable to the previous traditional reflectarray design, whereas the antenna depth has been reduced in half.
Antitumor effects of a natural anthracycline analog (Aloin) involve altered activity of antioxidant enzymes in HeLaS3 cells

The antiproliferative and cytotoxic potential of the natural anthracycline aloin from Aloe vera was tested on human uterine carcinoma HeLaS3 cells. Aloin showed a pronounced antiproliferative effect at physiological concentration (IC50=97μM), caused cell cycle arrest in the S phase, and markedly increased HeLaS3 cell apoptosis (to 24%). In the concentration range of 20-100 μM, its action was accompanied by remarkable changes in the activity of almost all antioxidant enzymes: MnSOD activity was increased many fold, while CuZnSOD and iNOS activities were inhibited. Moreover, inhibition of CuZnSOD was shown to occur by direct aloin interaction with the enzyme. As catalase activity was not changed, it is suggested that such conditions were responsible for antiproliferative and cytotoxic effects owing to accumulation of H2O2. Aloin alone was a more potent proapoptotic agent than a 2 Gy fractional dose of ionizing radiation or a combination of the two. Compared to other currently used therapeutics, aloin, due to its less undesirable side effects and antimetastatic potential, may prove to be the agent of choice on which clinical protocols for the treatment of human cervical carcinoma should rely in future.
Crystal structure of a family 6 cellobiohydrolase from the basidiomycete Phanerochaete chrysosporium

The crystal structure of the catalytic domain of a glycoside hydrolase family 6 cellobiohydrolase from the basidiomycete P. chrysosporium was solved in apo and cellobiose-liganded forms at 1.2 and 2.1 Å resolution, respectively.
Does spinal anesthesia increase the pain and anxiety after total knee arthroplasty? a randomized prospective study.

OBJECTIVES In this study, postoperative pain and anxiety level of the patients who were scheduled for spinal anesthesia (SA) and remained awake during the operation and patients who were scheduled for general anesthesia (GA) and were asleep during the operation were assessed. PATIENTS AND METHODS Thirty-six patients who underwent total knee arthroplasty in our clinic were randomly divided into two groups. The first group (SA group) was given spinal anesthesia during operation (heavy marcaine), while the second group (GA group) underwent general anesthesia (propofol + nitric oxide). Hospital anxiety-depression (HAD) scores and visual analog scale (VAS) scores of the patients were calculated postoperatively. The patients were asked to score anxiety by the physicians. RESULTS The mean postoperative HAD score was 24.68 in GA group, and 29.62 in SA group (p>0.05). The physicians score for patients' anxiety after surgery was 1.05 in GA group, and 1.69 in SA group (p<0.05). The mean postoperative VAS of the patients was 8.42 in GA group, and 8.87 in SA group (p>0.05). No statistically significant differences were found between the SA group and GA group in terms of HAD scores. No significant differences were found between the mean postoperative VAS scores of the groups. A statistically significant difference was found between the two groups for the physician's score for patients' postoperative anxiety. CONCLUSION Our study results showed that total knee arthroplasty under spinal anesthesia was not associated with mood changes in patients and no increase in postoperative pain was seen.
Automatic Music Genre Classification Using Modulation Spectral Features and Nonparametric Discriminant Analysis

In this paper, we will propose an automatic music genre classification approach based on long-term modulation spectral analysis of spectral (OSC and MPEG-7 NASE) as well as cepstral (MFCC) features. Modulation spectral analysis of every feature value will generate a corresponding modulation spectrum and all the modulation spectra can be collected to form a modulation spectrogram which exhibits the time-varying or rhythmic information of music signals. Each modulation spectrum is then decomposed into several logarithmically-spaced modulation subbands. A new set of modulation spectral features, including modulation spectral contrast (MSC), modulation spectral valley (MSV), modulation spectral energy (MSE), modulation spectral centroid (MSCEN) and modulation spectral flatness (MSF) are then computed from each modulation subband. Effective and compact features are generated from statistical aggregations of the MSC, MSV, MSE, MSCEN, and MSF features of all modulation subbands. An information fusion approach which integrates both feature level fusion method and decision level combination method is then employed to improve the classification accuracy. Experiments conducted on ISMIR 2004 music dataset have shown that our proposed approach can achieve higher classification accuracy than other approaches with the same experimental setup.
Hepatic Hazard Assessment of Silver Nanoparticle Exposure in Healthy and Chronically Alcohol Fed Mice

Silver (Ag) nanoparticles (NPs) are currently among one of the most widely used nanomaterials. This in turn, implies an increased risk of human and environmental exposure. Alcohol abuse is a global issue with millions of people in the general population affected by the associated adverse effects. The excessive consumption of alcohol is a prominent cause of chronic liver disease which manifest in multiple disorders. In this study, the adverse health effects of Ag NP exposure were investigated in models of alcoholic hepatic disease in vitro and in vivo. The data showed that Ag NP induced hepatic health effects were aggravated in the alcohol pretreated mice in comparison to controls with regards to an organ specific inflammatory response, changes in blood biochemistry, acute phase response and hepatic pathology. In addition, alcoholic disease influenced the organ's ability for recovery post-NP challenge. Additionally, it is demonstrated that the in vivo data correlated well with in vitro findings where ethanol pretreatment of hepatocytes resulted in significantly increased inflammatory response post-Ag NP exposure. To the best of our knowledge this is the first study of its kind to investigate nano-sized material-induced hepatic pathology in models representative of susceptible individuals (those with pre-existing alcohol liver disease) within the population. This is an area of research in the field of nanotoxicology, and in particular with regard to NP risk assessment that is almost entirely overlooked.
A computational intelligence method to estimate capacitance loss of electrolytic capacitors based on equivalent series resistance

Capacitance loss of electrolytic eapacitors is one of aging time functions that has nonlinear behavior with equivalent series resistance. Therefore, analyzing this significant parameter with computational intelligence methods will rise the reliability and safety of the models. In this paper, a computational intelligence method to identify and estimate capacitance losses of six electrolytic capacitor based on equivalent series resistance is presented. The proposed approach contains an adaptive neuro fuzzy inference system based on subtractive clustering algorithm with six input signals. An experimental dataset of six electrolytic capacitors is used in this paper, which was carried out by a research center of NASA. The results demonstrates that the proposed approach is high accuracy for system identification of the capacitance loss and similar dynamic systems.
The circadian rest‐activity rhythm, a potential safety pharmacology endpoint of cancer chemotherapy

The robustness of the circadian timing system (CTS) was correlated to quality of life and predicted for improved survival in cancer patients. However, chemotherapy disrupted the CTS according to dose and circadian timing in mice. A continuous and repeated measures longitudinal design was implemented here to characterize CTS dynamics in patients receiving a fixed circadian‐based chemotherapy protocol. The rest‐activity rhythm of 49 patients with advanced cancer was monitored using a wrist actigraph for 13 days split into four consecutive spans of 3–4 days each, i.e., before, during, right after and late after a fixed chronotherapy course. The relative amount of activity in bed vs. out of bed (I
A novel skin color model in YCbCr color space and its application to human face detection

This paper presents a new human skin color model in YCbCr color space and its application to human face detection. Skin colors are modeled by a set of three Gaussian clusters, each of which is characterized by a centroid and a covariance matrix. The centroids and covariance matrices are estimated from large set of training samples after a k-means clustering process. Pixels in a color input image can be classified into skin or non-skin based on the Mahalanobis distances to the three clusters. Efficient post-processing techniques namely noise removal, shape criteria, elliptic curve fitting and face/non-face classification are proposed in order to further refine skin segmentation results for the purpose of face detection.
A retroviral expression system based on tetracycline-regulated tricistronic transactivator/repressor vectors for functional analyses of antiproliferative and toxic genes

Establishment of stably transfected mammalian cells with conditional expression of antiproliferative or proapoptotic proteins is often hampered by varying expression within bulk-selected cells and high background in the absence of the inducing drug. To overcome such limitations, we designed a gene expression system that transcribes the tetracycline-dependent rtTA2-M2-activator, TRSID-silencer, and selection marker as a tricistronic mRNA from a single retroviral vector. More than 92% of bulk-selected cells expressed enhanced green fluorescent protein or luciferase over more than three orders of magnitude in an almost linear, dose-dependent manner. To functionally test this system, we studied how dose-dependent expression of p27Kip1 affects proliferation and viability of SH-EP neuroblastoma cells. Low to moderate p27Kip1 expression caused transient G0-G1 accumulation without reduced viability, whereas high p27Kip1 levels induced significant apoptosis after 72 hours. This proves that this expression system allows concentration-dependent analysis of gene function and implicates p27Kip1 as a critical regulator of both proliferation and apoptosis in SH-EP neuroblastoma cells. [Mol Cancer Ther 2006;5(8):1927–34]
A Concise Dictionary of the Bible and Its Reception

This dictionary not only identifies terms and biblical figures but also examines them from the perspective of "reception history"--the history of the Bible's effect on its readers. Biblical books, passages, and characters certainly played important roles in the history of Judaism, Christianity, and Islam, but they also influenced other religious traditions, preachers, writers, poets, artists, and filmmakers. The study of such cultural effects of the Bible is an emerging field, and this work promises to open new avenues of exploration.
The Two Human CXCR4 Isoforms Display Different HIV Receptor Activities: Consequences for the Emergence of X4 Strains

CXCR4 is a chemokine receptor that plays key roles with its specific ligand, CXCL12, in stem cell homing and immune trafficking. It is also used as a coreceptor by some HIV-1 strains (X4 strains), whereas other strains (R5 strains) use an alternative coreceptor, CCR5. X4 strains mainly emerge at late stages of the infection and are linked to disease progression. Two isoforms of this coreceptor have been described in humans: CXCR4-A and CXCR4-B, corresponding to an unspliced and a spliced mRNA, respectively. In this study, we show that CXCR4-B, but not CXCR4-A, mediates an efficient HIV-1 X4 entry and productive infection. Yet, the chemotactic activity of CXCL12 on both isoforms was similar. Furthermore, HIV-R5 infection favored CXCR4-B expression over that of CXCR4-A. In vitro infection with an R5 strain increased CXCR4-B/CXCR4-A mRNA ratio in PBMCs, and this ratio correlated with HIV RNA plasma level in R5-infected individuals. In addition, the presence of the CXCR4-B isoform favored R5 to X4 switch more efficiently than did CXCR4-A in vitro. Hence, the predominance of CXCR4-B over CXCR4-A expression in PBMCs was linked to the ability of circulating HIV-1 strains to use CXCR4, as determined by genotyping. These data suggest that R5 to X4 switch could be favored by R5 infection–induced overexpression of CXCR4-B. Finally, we achieved a specific small interfering RNA–mediated knockdown of CXCR4-B. This represents a proof of concept for a possible gene-therapeutic approach aimed at blocking the HIV coreceptor activity of CXCR4 without knocking down its chemotactic activity.
Negative feedback regulation of UV-B–induced photomorphogenesis and stress acclimation in Arabidopsis

Plants respond to low levels of UV-B radiation with a coordinated photomorphogenic response that allows acclimation to this environmental stress factor. The key players in this UV-B response are COP1 (an E3 ubiquitin ligase), UVR8 (a β-propeller protein), and HY5 (a bZIP transcription factor). We have shown previously that an elevated UV-B–specific response is associated with dwarf growth, indicating the importance of balancing UV-B–specific signaling. Negative regulators of this pathway are not known, however. Here, we describe two highly related WD40-repeat proteins, REPRESSOR OF UV-B PHOTOMORPHOGENESIS 1 (RUP1) and RUP2, that interact directly with UVR8 as potent repressors of UV-B signaling. Both genes were transcriptionally activated by UV-B in a COP1-, UVR8-, and HY5-dependent manner. rup1 rup2 double mutants showed an enhanced response to UV-B and elevated UV-B tolerance after acclimation. Overexpression of RUP2 resulted in reduced UV-B–induced photomorphogenesis and impaired acclimation, leading to hypersensitivity to UV-B stress. These results are consistent with an important regulatory role for RUP1 and RUP2, which act downstream of UVR8–COP1 in a negative feedback loop impinging on UVR8 function, balancing UV-B defense measures and plant growth.
Novel topical agent containing superoxide dismutase 100 000 IU and 4% of plant extracts as a mono‐therapy for atopic dermatitis

Corticosteroids are the mainstay of treatment for the acute phase of atopic dermatitis (AD), whereas topical emollients are mainly used for maintenance of remission. A topical agent that combines emollient and anti‐inflammatory properties would achieve control of all phases of AD, without the need for chronic corticosteroid use.
The Regulation of Telomerase by Alternative Splicing of TERT

Telomeric DNA consists of tandem oligonucleotide repeats that serve to protect ends of linear eukaryotic chromosomes against chromosome end-to-end fusion. The sequence of the repeat differs among distinct groups of eukaryotes and, with the exception of several Fungi species, is usually 5 to 8 nucleotides-long (Gomes et al., 2010; Watson & Riha, 2010). Since DNA polymerase cannot replicate the ends of linear chromosomes, chromosomal end shorten after each cell cycle in the absence of telomerase (Olovnikov, 1971; Watson, 1972). This gradual loss of telomeric repeats limits the potential lifespan of cells since cells with critically short telomeres undergo senescence (Bodnar et al., 1998). Rapidly proliferating cells activate the telomerase to synthesize telomeric DNA repeats in order to protect telomeres from shortening as a result of DNA replication and oxidative damage (Cech, 2004; Osterhage & Friedman, 2009; von Zglinicki, 2002). Telomerase is a multisubunit enzymatic ribonucleoprotein complex consisting of the telomerase reverse transcriptase (TERT), the telomerase RNA subunit (TR or TERC) which acts as the template, as well as other associated proteins (Blackburn & Collins, 2011).
Higher-Order Substitutions

The ? -calculus is a concrete ? -calculus of explicit substitutions, designed for reasoning about implementations of ? -calculi. Higher-order abstract syntax is an approach to metaprogramming that explicitly captures the variable-binding aspects of programming language constructs. A new calculus of explicit substitutions for higher-order abstract syntax is introduced, allowing a high-level description of variable binding in object languages while also providing substitutions as explicit programmer-manipulable data objects. The new calculus is termed the ? s0-calculus, since it makes essential use of an extension of s0-unification (described in another paper). Termination and confluence are verified for the ? s0-calculus similarly to that for the ? -calculus, and an efficient implementation is given in terms of first-order renaming substitutions. The verification of confluence makes use of a verified adaptation of Nipkow's higher-order critical pairs lemma to the forms of rewrite rules required for the statement of the ? s0-calculus.
ON HETEROZYGOSITY AND THE EFFECTIVE SIZE OF POPULATIONS SUBJECT TO SIZE CHANGES

When a population is subject to fluctuations in size, the effective population number during any time interval is usually approximated by the harmonic mean of the successive generation sizes (Wright, 1938, 1939). If there are no mutations, the population will eventually reach complete homozygosity. The rate at which such a population approaches homozygosity was investigated by Karlin (1968), for stochastic, and also by Chia (1968), for cyclic, deterministic changes in population size. The analysis of homozygosity levels in populations subject to stochastic size changes was extended by Chia and Pollak (1974), who included the possible existence of mutations. For a population recovering from a great reduction in size, Nei et al. (1975) have concluded, using numerical computations and considering the existence of mutations, that the harmonic mean approximation to the effective population number is quite robust. It is our purpose in this note to extend the analyses of Nei et al. (1975) and of Chakraborty and Nei (1977) concerning the robustness of the harmonic mean approximation in situations which take into account the existence of mutations. We propose to do this by investigating cases where a population is subject to cyclic, deterministic changes in size. In such a situation, because the mutation rate is not zero, the expected level of heterozygosity, and hence the effective population number, will change in value throughout the cycle. The harmonic mean approximation, on the other hand, will have, in the steady state, a constant value. However, it will be shown that the harmonic mean is a good approximation in many such cases. Large discrepancies between the expected degree of heterozygosity and the value obtained using the harmonic mean approximation are found in those cases which combine a bottleneck of a very small population size together with a long cycle period. Also demonstrated here is the effect of repeated bottlenecks on greatly reducing the expected level of heterozygosity of the population.
SUSTENTATION OF USER INFORMATION RETRIEVAL WITH PRIVATE GRID USING LOCATION BASED SERVICES

--With mobile phones becoming first-class citizens in the online world, the rich location data they bring to the table is set to revolutionize all aspects of online life including content delivery, recommendation systems, and advertising. It is argued that even if the user identity is not explicitly released to the service provider, the geolocalized history of user-requests can act as a quasi-identifier and may be used to access sensitive information about specific individuals. This problem is defined as follows: (i) a user wants to query a database of location data, known as Points Of Interest (POIs), and does not want to reveal his/her location to the server due to privacy concerns; (ii) the owner of the location data, that is, the location server, does not want to simply distribute its data to all users.
Carbon Nanotube Network Ambipolar Field‐Effect Transistors with 108 On/Off Ratio

Polymer wrapping is a highly effective method of selecting semiconducting carbon nanotubes and dispersing them in solution. Semi-aligned semiconducting carbon nanotube networks are obtained by blade coating, an effective and scalable process. The field-effect transistor (FET) performance can be tuned by the choice of wrapping polymer, and the polymer concentration modifies the FET transport characteristics, leading to a record on/off ratio of 10(8) .