Miracle-dz/UniFAR-FTUs huggingface dataset:
MMO: Multiply-Minus-One Rule for Detecting & Ranking Positive and Negative Opinion

Hit and hot issue about reviews of any product is sentiment classification. Not only manufacturing company of the reviewed product takes decision about its quality, but the customers’ purchase of the product is also based on the reviews. Instead of reading all the reviews one by one, different works have been done to classify them as negative or positive with preprocessing. Suppose from 1000 reviews, there are 300 negative and 700 are positive. As a whole it is positive. Company and customer may not be satisfied with this sentiment orientation. For companies, negative reviews should be separated with respect to different aspects and features, so companies can enhance the features of the product. There is also a lot of work on aspect extraction, and then aspect based sentiment analysis. While on the other hand, users want the most positive reviews and the most negative reviews, then they can decide purchasing a certain product. To consider the issue from users’ perspective, authors suggest a method Multiply-Minus-One (MMO) which can evaluate each review and find scores based on positive, negative, intensifiers and negation words using WordNet Dictionary. Experiments on 4 types of datasets of product reviews show that this method can achieve 86%, 83%, 83% and 85% precision performance.
Central connections of ventral root afferents as demonstrated by the HRP method

To study the central connections of ventral root afferents, horseradish peroxidase was injected into the lumbosacral spinal cord of the cat and the appropriate dorsal ganglia were examined from segments with (1) both dorsal and ventral roots intact, (2) both roots sectioned, and (3) only the dorsal root sectioned. The key finding was that a number of labeled cells (up to 133) were observed in the ganglion after dorsal rhizotomy. We interpret these findings to mean that the central processes of the labeled cells projected to the spinal cord through the ventral root. As expected, when both roots wer cut, almost no cells were labeled and when both roots were intact, there were large numbers of labeled cells.
Development of numerical linear algebra algorithms in dynamic fixed‐point format: a case study of Lanczos tridiagonalization

Proper range and precision analysis play an important role in the development of fixed‐point algorithms for embedded system applications. Numerical linear algebra algorithms used to find singular value decomposition of symmetric matrices are suitable for signal and image‐processing applications. These algorithms have not been attempted much in fixed‐point arithmetic. The reason is wide dynamic range of data and vulnerability of the algorithms to round‐off errors. For any real‐time application, the range of the input matrix may change frequently. This poses difficulty for constant and variable fixed‐point formats to decide on integer wordlengths during float‐to‐fixed conversion process because these formats involve determination of integer wordlengths before the compilation of the program. Thus, these formats may not guarantee to avoid overflow for all ranges of input matrices. To circumvent this problem, a novel dynamic fixed‐point format has been proposed to compute integer wordlengths adaptively during runtime. Lanczos algorithm with partial orthogonalization, which is a tridiagonalization step in computation of singular value decomposition of symmetric matrices, has been taken up as a case study. The fixed‐point Lanczos algorithm is tested for matrices with different dimensions and condition numbers along with image covariance matrix. The accuracy of fixed‐point Lanczos algorithm in three different formats has been compared on the basis of signal‐to‐quantization‐noise‐ratio, number of accurate fractional bits, orthogonality and factorization errors. Results show that dynamic fixed‐point format either outperforms or performs on par with constant and variable formats. Determination of fractional wordlengths requires minimization of hardware cost subject to accuracy constraint. In this context, we propose an analytical framework for deriving mean‐square‐error or quantization noise power among Lanczos vectors, which can serve as an accuracy constraint for wordlength optimization. Error is found to propagate through different arithmetic operations and finally accumulate in the last Lanczos vector. It is observed that variable and dynamic fixed‐point formats produce vectors with lesser round‐off error than constant format. All the three fixed‐point formats of Lanczos algorithm have been synthesized on Virtex 7 field‐programmable gate array using Vivado high‐level synthesis design tool. A comparative study of resource usage and power consumption is carried out. Copyright © 2015 John Wiley & Sons, Ltd.
Endovascular Treatment of Arterial Bleeding in Patients with Pancreatitis

Purpose: To assess the technical and clinical success of endovascular treatment of arterial bleeding in pancreatitis. Materials and Methods: From 1992 to 2005, 28 patients with pancreatitis underwent endovascular treatment of associated arterial lesions. Fifteen patients were affected by acute pancreatitis and 13 by chronic pancreatitis. The diagnosis was obtained according to medical history and clinical and laboratory evidence of disease. Arterial involvement was diagnosed by non-invasive imaging and angiography. After treatment, all patients underwent CT scanning at a minimum of 15, 30 and 90 days. We evaluated the feasibility of embolization and patients’ survival at 90 days. Results: Transcatheter embolization was feasible in 26/28 patients (93%). In 2 patients with acute pancreatitis, selective catheterization failed so we could not proceed with the angiographic approach. After treatment, there were 3/26 rebleeds (11.5%), all of whom died within the first week. At 90 days’ follow-up, 21/26 patients (81%) were alive. Two of 26 patients (8%) suffered splenic complications. Among the 13 patients with acute pancreatitis, 8 (61.5%) were alive after 90 days. All 13 patients with chronic pancreatitis were alive after 90 days. Conclusions: Comparing our results with the surgical literature, we found that embolization is less invasive and, at least, as successful as surgery. Thus, it should be considered the first choice in pancreatitis arterial complications.
Biological function of the USF family of transcription factors

USF i s a family of ubiquitous transcription factors that are structurally related to the Myc oncoproteins and also share with Myc a common DNA-binding specificity. While the structure and DNA-binding properties of the USF transcription factors are well characterized, their biological function i s only beginning to emerge. Experiments in cultured cel ls suggest that USF can antagonize the activity of Myc in cellular proliferation and transformation. The phenotype of USFdeficient mice indicates an additional and essential role of USF in embryonic development as well as pleiotropic functions in adult animals.
Projections to the end of the Century of Mortality from Major Cancer Sites in Italy

We used an age-period-cohort model with arbitrary constraints on the parameters, fitted to the mortality data for the period 1955-84, to project rates in mortality from all cancers and 11 major cancer sites in Italy for the period 1985-1999. For all neoplasms considered, using estimated age and cohort values, two models were fitted, one based on constant period effects, and one on a linear regression on the logarithm of the six calendar periods. Furthermore, « a priori » defined coefficients based on epidemiologic inferences were given to period values for tobacco-related neoplasms (below unity for males, above unity for females, on the basis of recent trends in tobacco prevalence in the two sexes), for breast and ovarian cancer (in relation to the potentially different effect of oral contraceptives, other female hormones, reproductive factors and treatment on these neoplasms), and for total cancer mortality. This produced a range of potential estimates, which were reasonably similar for neoplasms (such as stomach, intestines, breast, ovary or prostate) for which no major change in slope of the cohort effects was evident, but wider (i.e., between 188 and 264/100,000 males aged 40 to 79 in 1995-99) for lung or other tobacco-related cancers. Although this range of variation is far from negligible, the estimated values indicate that lung cancer among Italian males aged 40 to 79, even under the more optimistic assumption, will probably be higher at the end of the century than in the early 1980′s, and that lung cancer alone will account for 35 to 42% of all cancer deaths in males between 40 and 79 years. Though any prediction has, by definition, inherent difficulties and uncertainties, cancer mortality in the near future will be strongly influenced by age and cohort effects already known, and hence its projections may offer some indication of public health relevance.
Caregivers in Death, Dying, and Bereavement Situations

This document examines issues related to the work of both formal and informal caregivers as they are involved in caring for dying and/or bereaved individuals. The examination is organized around five central questions: what brings individuals to this work? ; what enables them to develop effective caregiving relationships? ; what sustains them in their work? ; what responsibilities do they have to themselves and to others? ; and how are they are influenced by the social context of their work? The goal of this article is to help individuals and teams improve the care they provide in death-related situations, while also assisting educators, managers, and administrators to prepare and support these caregivers in more effective ways.
Activation of the protein kinase PKR by short double-stranded RNAs with single-stranded tails.

The human RNA-activated protein kinase PKR is an interferon-induced protein that is part of the innate immune response and inhibits viral replication. The action of PKR involves RNA-dependent autophosphorylation leading to inhibition of translation. PKR has an N-terminal dsRNA-binding domain that can interact non-sequence specifically with long (>33 bp) stretches of dsRNA leading to activation. In addition, certain viral and cellular RNAs containing non-Watson-Crick structures and multiple, shorter dsRNA sections can regulate PKR. In an effort to identify novel binders and possible activators of PKR, we carried out selections on a partially structured dsRNA library using truncated and full-length versions of PKR. A library with 10(11) sequences was constructed and aptamers that bound to His6-tagged proteins were isolated. Characterization revealed a novel minimal RNA motif for activation of PKR with the following unified structural characteristics: a hairpin with a nonconserved imperfect 16-bp dsRNA stem flanked by 10-15-nt single-stranded tails, herein termed a "ss-dsRNA motif. " Boundary experiments revealed that the single-stranded tails flanking the dsRNA core provide the critical determinant for activation. The ss-dsRNA motif occurs in a variety of cellular and viral RNAs, suggesting possible novel functions for PKR in nature.
Comparison of Ambient Ammonia Measurement Techniques from Dairy Area Sources

Previous studies of ag-related NH3 concentrations and/or emissions have used a variety of techniques, with very few studies offering adequate instrumental comparisons. In the fall of 2007, NH3 concentrations/emissions were monitored for a one week period at a waste treatment lagoon on a 6000-cow dairy in Idaho using five separate methodologies. Up to twenty-five Ogawa passive samplers were dispersed around the perimeter of the lagoon, with a concentrated bank of samplers arrayed along the predicted downwind side of the facility. A URG acid/base gas denuder system, assembles with three series denuders configured for NH3 collection, was collocated at a single sampling site with one of the passive samplers. The collected samples from the passive samplers and the denuder tubes were quantified via ion chromatography at Utah State University. Two separated UV-Sentry open-path ultra violet differential optical absorption spectrometers (UV-DOAS) were used to measure the integrated NH3 concentrations along an approximately 200 m pathlength on both the up and downwind sides of the lagoon. Two infrared Fourier Transform Spectrometers (FTS) were also used to quantify ambient NH3 along the same downwind pathlength. Finally, a small, floating wind tunnel system, coupled with a Thermo Fisher Model 17C chemiluminescence NH3 monitor, was used to measure direct NH3 emissions from the surface of the lagoon. In 2008, NH3 measurements were made at a 950-milking cow dairy in central California. Two FTS systems were employed upwind and downwind of the whole facility, while numerous passive samplers were place throughout the dairy. Quantification of all ambient concentrations have been completed and the measurements will be used in conjunction with inverse modeling techniques (both LaGrangian and Eularian) to estimate lagoon and dairy-wide NH3 emissions.
Recuperação de Recursos Audiovisuais em Portais Educacionais por meio da Adição de Metadados Semânticos

A busca e recuperacao de informacoes em videos e ainda um dos grandes desafios nas buscas em videos educacionais. Este estudo intenta construir um portal semântico com conteudos audiovisuais educacionais. Objetiva-se identificar ferramentas que auxiliem na adicao de semântica nas informacoes desse portal. Apresenta uma arquitetura do portal semântico educacional e um prototipo com base nessa arquitetura, o que pode auxiliar na recuperacao de conteudos de videos educacionais em tempo real e propiciar a integracao desses conteudos e uma melhoria na qualidade dos resultados e eficiencia das pesquisas feitas pelos usuarios.
Compact Coplanar Waveguide Spiral Antenna With Circular Polarization for Wideband Applications

This letter presents a compact, uniplanar, circularly polarized, coplanar waveguide (CPW) spiral antenna for wideband applications. The antenna is directly fed by a 50-Ω CPW from the outside edge of the spiral, thus a balun for matching is not required. This feed provides the capability to have an entire uniplanar array of spirals. It is found that a thick substrate of high dielectric constant absorbs most of the radiated power and results in a unidirectional radiation pattern, which is desirable in many applications. Therefore, this antenna structure is fabricated on a substrate of high dielectric constant, resulting in miniaturization and capability for integrated system applications. It is experimentally verified that the proposed spiral antenna has stable radiation pattern, and its axial ratio is less than 3 dB over the frequency range of 11.4-17.5 GHz.
Performance analysis of hybrid protocol based on dynamic contention window for power line communication systems

Home networking using powerline communication (PLC) system is evolving from simple voice service to multimedia platforms that offer a variety of services for home automation. The media access control (MAC) protocol used in the PLC network has to provide large flexibility and scalability to match these heterogeneous requirements. In this paper the MAC analysis using hybrid protocol, which is based on virtual slot multiple access (VSMA) has been proposed. An adaptive backoff mechanism has been adopted to dynamically select the optimal contention window according to the estimate of the number of contending stations and priority of the services. This hybrid protocol has been analyzed and simulated for variable packet sizes, the results obtained depicts that the proposed hybrid system enhances the throughput and reduces the delay for various services as compared with the conventional protocol.
Cohort study of examination performance of undergraduate medical students learning in community settings

Abstract Objectives To determine whether moving clinical medical education out of the tertiary hospital into a community setting compromises academic standards. Design Cohort study. Setting Flinders University four year graduate entry medical course. In their third year, students are able to choose to study at the tertiary teaching hospital in Adelaide, in rural general practices, or at Royal Darwin Hospital, a regional secondary referral hospital. Participants All 371 medical students who did their year 3 study from 1998-2002. Main outcome measures Mean student examination score (%) at the end of year 3. Results The unadjusted mean year 3 scores at each location differed significantly (P < 0.001); the mean score was 65.2 (SE = 0.43) for Adelaide students, 68.2 (0.83) for Darwin students, and 69.3 (0.97) for students on the rural programme. Mean year 2 scores were similar for each location. Post hoc tests of means adjusted for sex, age, year 2 score, and cohort year showed that the rural and Darwin groups had a significantly improved score in year 3 compared with the Adelaide group (adjusted mean difference = 3.08, 95% confidence interval 1.25 to 4.90, P < 0.001 for rural group; 1.91, 0.47 to 3.36, P = 0.001 for Darwin group). Conclusions These findings show that the concern that student academic performance in the tertiary hospital would be better than that of students in the regional hospital and community settings is not justified. This challenges the orthodoxy of a tertiary hospital education being the gold standard for undergraduate medical students.
A study of cognitive functions in DDT sprayers.

To study the effects of occupational exposure to Dichlorodiphenyltrichloroethane (DDT), 29 workers engaged in regular spraying of DDT were subjected to clinical evaluation, Bhatia battery performance test of intelligence, Wechsler memory scale and Bender visuomotor Gestalt test (BGT). DDT level in the sprayers was 8.5 times higher than the controls, suggesting heavy exposure. Visuomotor functions in the sprayers were significantly impaired and were suggestive of dominant frontoparietal lobe involvement. 55.5% sprayers with poor BGT performance had diffuse electroencephalographic (EEG) changes. BGT scores had a moderately significant relationship with DDT level in the sprayers. A possible role of DDT in the impairement of cognitive functions is suggested.
Scale-dependent habitat selection by a nearshore seabird, the marbled murrelet, in a highly dynamic upwelling system

We investigated daily and annual variation in the marine habitat selection of marbled murrelets Brachyramphus marmoratus (Alcidae) in the nearshore California Current System at scales of 10 to 100 km of coastline. We addressed 2 general questions: (1) how do murrelets select habitat while facing dramatic and often rapid variation in oceanographic conditions and prey availability; and (2) does selection vary between meso- (10 to 100 km) and fine- (<10 km) scales. Marine transects were performed during 1999 and 2000 to survey murrelets and prey-fish schools, and to collect data on physical oceanography. We predicted that habitat selection would vary with upwelling intensity and prey availability: prey-aggregating mechanisms should be more important under low upwelling scenarios when cool, productive water is more limited, and murrelets should forage closer to nesting habitat when prey availability is high. This was generally the case, as murrelets selected cooler loca- tions when upwelling was low and locations closer to nesting habitat when upwelling was high. Inter- actions among variables were important; murrelet habitat selection for prey and fronts changed among different sea surface temperatures (SSTs), distance to nesting habitat, upwelling intensity, and overall prey availability. Scale-dependent selection for prey patches (fish schools) and fronts occurred within larger-scale selection for SST or distance from nesting habitat. Additional scale- dependent effects of prey availability were revealed by small-scale surveys in an area of high prey density. In this case, murrelets selected cool water (higher quality habitat) when prey availability was low and were associated with prey schools when prey availability was high. Additional large-scale surveys from 1996 to 2000 revealed that these patterns also manifested themselves on a longer tem- poral scale. Murrelets occurred farther from nesting flyways in years when spring upwelling was low and during the 1998 El Nino Southern Oscillation (ENSO) when local food webs were depressed and numerous other seabird species failed to reproduce.
Serotype and surface protein gene distribution of colonizing group B streptococcus in women in Egypt

SUMMARY Group B streptococcus (GBS) is a leading cause of neonatal sepsis and meningitis. We determined the distribution of serotypes and surface protein encoding genes of GBS strains from pregnant and non-pregnant women in Egypt. Vaginal swabs from 364 women were screened by culture and 100 (27·4%) yielded GBS. Serotype V was the most predominant (33%), followed by serotypes II (17%), III (15%), Ia (14%), VI (12%), Ib (8%) and IV (1%). The most common surface protein genes were epsilon (27%), alp3 (26%), bca (18%), rib (16%) and alp2 (10%). Two isolates were negative for surface protein genes. The distribution of serotypes and surface proteins was similar to reports from other parts of the world but the relatively high frequency of serotype VI was a notable feature of the strains from women in Egypt.
Induced Host-Range Mutations in Bacteriophage.

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