Miracle-dz/UniFAR-FTUs huggingface dataset:
The novel terms on the basis of some photon interaction parameters for some barium compounds

The molecular (), atomic (), electronic () cross-sections and the total mass attenuation coefficient () values of barium compounds are determined both experimentally and theoretically. The most interesting result of this study is that the effective , , cross-section values are not as expected near the absorption edge. The results have been compared with some other theoretical values in literature due to these unexpected behaviours. The link between the , , values and the cross-section , , and values are also investigated with the absorption jump factor (J). Key words: Mass attenuation coefficient, molecular, atomic and electronic cross-sections, jump ratio.
Schwarzschild black holes as unipolar inductors: expected electromagnetic power of a merger

The motion of a Schwarzschild black hole with velocity v{sub 0}={beta}{sub 0}c through a constant magnetic field B{sub 0} in vacuum induces a component of the electric field along the magnetic field, generating a nonzero second Poincare electromagnetic invariant {sup *}F{center_dot}F{ne}0. This will produce (e.g., via radiative effects and vacuum breakdown) an electric charge density of the order of {rho}{sub ind}=B{sub 0{beta}0}/(2{pi}eR{sub G}), where R{sub G}=2GM/c{sup 2} is the Schwarzschild radius and M is the mass of the black hole; the charge density {rho}{sub ind} is similar to the Goldreich-Julian density. The magnetospheres of moving black holes resemble in many respects the magnetospheres of rotationally-powered pulsars, with pair formation fronts and outer gaps, where the sign of the induced charge changes. As a result, the black hole will generate bipolar electromagnetic jets each consisting of two counter-aligned current flows (four current flows total), each carrying an electric current of the order I{approx_equal}eB{sub 0}R{sub G{beta}0}. The electromagnetic power of the jets is L{approx_equal}(GM){sup 2}B{sub 0}{sup 2{beta}}{sub 0}{sup 2}/c{sup 3}; for a particular case of merging black holes the resulting Poynting power is L{approx_equal}(GM){sup 3}B{sub 0}{sup 2}/(c{sup 5}R), where R is the radius of the orbit. In addition, in limited regions nearmore » the horizon the first electromagnetic invariant changes sign, so that the induced electric field becomes larger than the magnetic field, E>B. As a result, there will be local dissipation of the magnetic field close to the horizon, within a region with the radial extent {Delta}R{approx_equal}R{sub G{beta}0}. The total energy loss from a system of merging black holes is a sum of two components with similar powers, one due to the rotation of space-time within the orbit, driven by the nonzero angular momentum in the system, and the other due to the linear motion of the black holes through the magnetic field. Since the resulting electrodynamics is in many respects similar to pulsars, merging black holes may generate coherent radio and high energy emission beamed approximately along the orbital normal. In addition, merging black holes may produce observable wind-driven cavities. « less
Green Tea Attenuates Oxidative Stress and Downregulates the Expression of Angiotensin II AT1 Receptor in Renal and Hepatic Tissues of Streptozotocin-Induced Diabetic Rats

This study investigates the potential of green tea to modulate oxidative stress and angiotensin II AT1 receptor expression in renal and hepatic tissues of diabetic rats. Three groups of rats were studied after 8 weeks following diabetes induction: normal, streptozotocin-induced diabetic (diabetic control), and green-tea-treated diabetic rats. Total antioxidant, catalase, and malondialdehyde levels were assayed by standard procedures. Levels of AT1 receptor labeling, in renal and hepatic tissues of the three rat groups, were immunohistochemically investigated using an anti-AT1 receptor antibody. Levels of total antioxidant and catalase were significantly reduced, whereas malondialdehyde levels and AT1 receptor labeling were significantly increased in renal and hepatic tissues of diabetic control rats compared to normal rats. Compared to diabetic control rats, total antioxidant and catalase levels were significantly increased, whereas malondialdehyde levels and AT1 receptor labeling in the green-tea-treated diabetic group were significantly reduced throughout hepatic lobules and renal cortical and medullary vascular and tubular segments to levels comparable to those observed in normal rats. The capacity of green tea to modulate diabetes-induced oxidative stress and AT1 receptor upregulation may be beneficial in opposing the deleterious effects of excessive angiotensin II signaling, manifested by progressive renal and hepatic tissue damage.
Single R Gene Introgression Lines for Accurate Dissection of the Brassica - Leptosphaeria Pathosystem

Seven blackleg resistance (R) genes (Rlm1, Rlm2, Rlm3, Rlm4, LepR1, LepR2 & LepR3) were each introgressed into a common susceptible B. napus doubled-haploid (DH) line through reciprocal back-crossing, producing single-R gene introgression lines (ILs) for use in the pathological and molecular study of Brassica—Leptosphaeria interactions. The genomic positions of the R genes were defined through molecular mapping and analysis with transgenic L. maculans isolates was used to confirm the identity of the introgressed genes where possible. Using L. maculans isolates of contrasting avirulence gene (Avr) profiles, we preformed extensive differential pathology for phenotypic comparison of the ILs to other B. napus varieties, demonstrating the ILs can provide for the accurate assessment of Avr-R gene interactions by avoiding non-Avr dependant alterations to resistance responses which can occur in some commonly used B. napus varieties. Whole-genome SNP-based assessment allowed us to define the donor parent introgressions in each IL and provide a strong basis for comparative molecular dissection of the pathosystem.
Building an Arabic News Transcription System with Web-crawled Resources

This paper describes our efforts to build an Arabic ASR system with web-crawled resources. We first describe the processing done to handle Arabic text in general and more particularly to cope with the high number of different phonetic transcriptions associated to a typical Arabic word. Then, we present our experiments to build acoustic models using only audio data found in the web, in particular on the Euronews portal. To transcribe the downloaded audio we compare two approaches: the first uses a baseline trained on manually transcribed Arabic corpora, while the second uses a universal ASR system trained on automatically transcribed speech data of 8 languages (not including Arabic). We demonstrate that with this approach we are able to obtain recognition performances comparable to the ones obtained with a fully supervised Arabic baseline.
Limits on the Primordial Fluctuation Spectrum Void Sizes and CMBR Anisotropy

We suggest to use the common appearance of voids with a scale of $5000 \kms$ in the galaxy distribution to estimate the power spectrum on this scale. We use a simple model for a gravitational formation of voids and we compare the results with the matter fluctuations as constrained by the CMBR observations of COBE. We find that a power spectrum $P(k)\propto k^n$ with $n \approx 1.25$ is compatible both with COBE and with gravitational growth of large voids in an $\Omega=1$ universe. A Harrison-Zel'dovich spectrum, $n=1$, normalized to produce the observed CMBR fluctuations, does not have enough power for gravitational growth of voids with a diameter of $5000 \kms$ in an $\Omega=1$ Universe. Such a spectrum would be compatible if (i) void diameters are smaller ($3500 \kms$), the voids are shallower or if the voids are rare (we assume that the universe is void filled); (ii) $\Omega < 1$ i.e. the Universe is open; (iii) galaxies do not trace matter on very large scale or if (iv) the voids do not grow gravitationally.
Special Collection: Technology for Supporting Older People at Home Acceptance of televideo technology by adults aging with a mobility impairment for health and wellness interventions

Televideo technology (e.g., Skype) has potential to support adults as they age by facilitating their interactions with people remotely; this potential may be even greater for adults aging with pre-existing mobility impairments, who face challenges interacting with others in person due to lack of transportation or accessibility. Our research employed questionnaire and interview methodologies to investigate this understudied population about their attitudes toward televideo technology for supporting social engagement, healthcare provider access, and physical activity. Participants were 14 adults aging with self-reported mobility impairments (50–70 years of age). Overall, participants were open to accepting televideo technology for social engagement, healthcare provider access, and physical activity. Participants perceived these technologies to be useful and perceived additional benefits, including the feeling of ‘‘being there’’ by enabling the viewing of facial expressions and the environment of the other person. Concerns included perceptions that televideo technologies lack security and privacy. Participants also expressed concerns that these technologies are difficult to use and are difficult to learn to use. The findings have implications for education, training, and deployment of televideo technology for homebased interventions for adults aging with pre-existing mobility impairments.
Efficacy of pleurodesis for malignant pleural effusions in breast cancer patients

This study retrospectively compared long-term outcomes between two groups of breast cancer patients with malignant pleural effusion (MPE): those receiving only systemic therapy (ST) and those receiving ST following initial pleurodesis (P-ST). We identified 180 breast cancer patients from the National Cancer Center Hospital (Tokyo, Japan) database who had received ST and P-ST as an initial treatment for MPE between 1997 and 2008 for study inclusion. Pleural progression-free survival (PPFS) was defined as the time from ST in the ST group and from pleurodesis in the P-ST group to the first observation of pleural progression or death from any cause. Of the 180 patients, 78 received ST and 102 received P-ST after MPE diagnosis. Median duration of follow-up was 12.7 months (range 0.9–80.1 months). Median PPFS for the ST group and the P-ST group was 4.1 and 8.5 months, respectively. The difference in PPFS between the two groups was statistically significant (p<0.001) and the hazard ratio after adjusting for prognostic factors in the P-ST group relative to the ST group was 0.24. Our results suggest that the efficacy of P-ST may be superior to that of ST alone with respect to local control of pleural effusions in breast cancer patients.
Exponential principal component analysis and non-local means based two-stage method for photon-limited Poisson image reconstruction

In this paper, we propose a two-stage method for the Poisson image. Our method is an improvement of the existing two-stage non-local means for Poisson image (Poisson-NLM), which is based on probabilistic similarities to compare noisy patches and patches of a pre-estimated image. In Poisson-NLM, the pre-estimated image is obtained by using simple Gaussian convolution, which is fast but not effective for the image with extremely small number of photons. To overcome this issue, we utilize the exponential non-local principal component analysis based method (NLPCA) to obtain a pre-estimated image at the first stage, and propose a recombined two-stage method called NLPCA-NLM for the reconstruction of photon-limited Poisson image. The numerical experiments show that our method improves the result both visually and in terms of the PSNR and SSIM efficiently, especially for the Poisson images with extremely small number of photons.
Shewanella and Photobacterium spp. in Oysters and Seawater from the Delaware Bay

ABSTRACT Shewanella algae, S. putrefaciens, and Photobacterium damselae subsp. damselae are indigenous marine bacteria and human pathogens causing cellulitis, necrotizing fasciitis, abscesses, septicemia, and death. Infections are rare and are most often associated with the immunocompromised host. A study was performed on the microbiological flora of oysters and seawater from commercial oyster harvesting sites in the Delaware Bay, New Jersey. From 276 water and shellfish samples tested, 1,421 bacterial isolates were picked for biochemical identification and 170 (12.0%) of the isolates were presumptively identified as S. putrefaciens, 26 (1.8%) were presumptively identified as P. damselae subsp. damselae, and 665 (46.8%) could not be identified using the API 20E identification database. Sequencing of the 16S rRNA genes of 22 S. putrefaciens-like isolates identified them as S. abalonesis, S. algae, S. baltica, S. hafniensis, S. marisflavi, S. putrefaciens, Listonella anguillarum, and P. damselae. Beta-hemolysis was produced by some S. algae and P. damselae isolates, while isolates of S. baltica and L. anguillarum, species perceived as nonpathogenic, also exhibited β-hemolysis and growth at 37°C. To our knowledge, this is the first time these beta-hemolytic strains were reported from shellfish or seawater from the Delaware Bay. Pathogenic Shewanella and Photobacterium species could pose a health threat through the ingestion of contaminated seafood, by cuts or abrasions acquired in the marine environment, or by swimming and other recreational activities.
Buried Higgs boson

We present an extension of the minimal supersymmetric standard model where the dominant decay channel of the Higgs boson is a cascade decay into a four-gluon final state. In this model the Higgs is a pseudo-Goldstone boson of a broken global symmetry SU(3){yields}SU(2). Both the global symmetry breaking and electroweak symmetry breaking are radiatively induced. The global symmetry breaking pattern also implies the existence of a light (few GeV) pseudo-Goldstone boson {eta} which is a singlet under the standard model gauge group. The h{yields}{eta}{eta} branching fraction is large, and typically dominates over the standard h{yields}bb decay. The dominant decay of {eta} is into two gluons, while the decays to photons, taus or lighter standard model flavors are suppressed at the level of 10{sup -4} or more. With h{yields}4 jets as the dominant decay, the Higgs could be as light as 78 GeV without being detected at LEP, while detection at the LHC is extremely challenging. However many of the super- and global symmetry partners of the standard model particles should be easily observable at the LHC. Furthermore, the LHC should be able to observe a 'wrong' Higgs that is a 300-400 GeV heavy Higgs-like particle with suppressed couplings to Wmore » and Z that by itself does not account for electroweak precision observables and the unitarity of WW scattering. At the same time, the true Higgs is deeply buried in the QCD background. « less
Meta-analysis of non-tumour doses for radiation-induced cancer on the basis of dose-rate

Purpose: Quantitative analysis of cancer risk of ionising radiation as a function of dose-rate. Materials and methods: Non-tumour dose, Dnt, defined as the highest dose of radiation at which no statistically significant tumour increase was observed above the control level, was analysed as a function of dose-rate of radiation. Results: An inverse correlation was found between Dnt and dose-rate of the radiation. Dnt increased 20-fold with decreasing dose-rate from 1–10−8 Gy/min for whole body irradiation with low linear energy transfer (LET) radiation. Partial body radiation also showed a dose-rate dependence with a 5- to 10-fold larger Dnt as dose rate decreased. The dose-rate effect was also found for high LET radiation but at 10-fold lower Dnt levels. Conclusions: The cancer risk of ionising radiation varies 1000-fold depending on the dose-rate of radiation and exposure conditions. This analysis explains the discrepancy of cancer risk between A-bomb survivors and radium dial painters.
Effective User Navigability through Website Structure Reorganizing Using Mathematical Programming Model

Website design is easy task but, to navigate user efficiently is big challenge, one of the reason is user behavior is keep changing and web developer or designer not think according to user's behavior. Designing well- structured websites to facilitate effective user navigation patterns has long been a challenge in web usage mining with various applications like navigation prediction and improvement of website management. This paper addresses how to improve a website without introducing substantial changes. Specifically, we propose a mathematical programming model to improve the user navigation on a website while minimizing alterations to its current structure. Results from extensive tests conducted on a publicly available real data set indicate that our model not only significantly improves the user navigation with very few changes, but also can be effectively solved. We have also tested the model on large synthetic data sets to demonstrate that it scales up very well. In addition, we define two evaluation metrics and use them to assess the performance of the improved website using the real data set. Evaluation results confirm that the user navigation on the improved structure is indeed greatly enhanced. More interestingly, we find that heavily disoriented users are more likely to benefit from the improved structure than the less disoriented users.
Application Level Trust Mechanisms for Enhancing the Operational Trust in a Cloud

Establishing trust in cloud system is a complex and challenging problem. In cloud computing trust establishment has to be both identity and properties based due to its dynamic nature, complexity of infrastructure, automated services, application interdependencies, and diversity of stakeholders. Trust in cloud depends mainly upon two factors. One is the operational trust which deals with the operations of cloud service provider and other is automation of different mechanisms for service providers to provide trust. This paper focus on implementation of different trust mechanisms at application layer of cloud to enhance the operational trust in cloud computing.
Atlas Assimilation Patterns in Different Types of Adult Craniocervical Junction Malformations

Study Design. This is a cross‐sectional analysis of resonance magnetic images of 111 patients with craniocervical malformations and those of normal subjects. Objective. To test the hypothesis that atlas assimilation is associated with basilar invagination (BI) and atlas's anterior arch assimilation is associated with craniocervical instability and type I BI. Summary of Background Data. Atlas assimilation is the most common malformation in the craniocervical junction. This condition has been associated with craniocervical instability and BI in isolated cases. Methods. We evaluated midline Magnetic Resonance Images (MRIs) (and/or CT scans) from patients with craniocervical junction malformation and normal subjects. The patients were separated into 3 groups: Chiari type I malformation, BI type I, and type II. The atlas assimilations were classified according to their embryological origins as follows: posterior, anterior, and both arches assimilation. Results. We studied the craniometric values of 111 subjects, 78 with craniocervical junction malformation and 33 without malformations. Of the 78 malformations, 51 patients had Chiari type I and 27 had BI, of whom 10 presented with type I and 17 with type II BI. In the Chiari group, 41 showed no assimilation of the atlas. In the type I BI group, all patients presented with anterior arch assimilation, either in isolation or associated with assimilation of the posterior arch. 63% of the patients with type II BI presented with posterior arch assimilation, either in isolation or associated with anterior arch assimilation. In the control group, no patients had atlas assimilation. Conclusion. Anterior atlas assimilation leads to type I BI. Posterior atlas assimilation more frequently leads to type II BI. Separation in terms of anterior versus posterior atlas assimilation reflects a more accurate understanding of the clinical and embryological differences in craniocervical junction malformations. Level of Evidence: N/A
Einstellungen von Lehramtsstudierenden zu Mobbing

Mobbing ist ein Thema, welches haufig im Schulalltag auftritt und negative Folgen fur alle Beteiligten hat. Daher ist es von hoher Bedeutung, dass die LehrerInnen wissen, wie sie bei Mobbing unter SchulerInnen intervenieren konnen. Dies bedeutet aber auch, dass Lehramts-studierende dies ggf. wahrend ihres Studiums vermittelt bekommen sollten. Ziel der Arbeit ist es, eine Aussage daruber treffen zu konnen, wie Lehramtsstudierende zu Mobbing eingestellt sind und ob Mobbing im Studium starker thematisiert werden sollte. Fur eine Erfassung der Einstellungen zu Mobbing wurde ein Fragebogen verwendet. 98 Lehramts-studierende der Universitat Oldenburg haben diesen Fragebogen beantwortet. Schlagworter: Mobbing, Bullying, Einstellungen, Lehramt, Lehramtsstudierende.
Recent Paradigm Shifts in the Diagnosis and Treatment of Rheumatoid Arthritis

Rheumatoid arthritis (RA) is a progressive inflammatory disease with severe symptoms of pain and stiffness. Chronic persistent inflammation of RA often leads to joint destruction, deformity and limitation of function, which ultimately results in significant deterioration of quality of life (QoL). RA is characterized pathogenetically by immunologically driven, chronic synovitis, and production of autoantibodies, such as rheumatoid factor and anti-cyclic citrullinated peptide antibodies. Although the cause of RA is yet unknown, advances in the molecular biology led to in-depth understanding of its pathogenesis, and have fostered the recent development of novel treatments. The last decade has seen the dramatic change in the landscape of RA treatment with more aggressive therapy early in the disease course and with treatment guided by a structured assessment of disease activity, with the ultimate goal of reaching remission. In addition, prevention and control of joint damage and improvement in QoL are important goals. To achieve these goals, a multidisciplinary approach to reduce disease activity with disease modifying antirheumatic drugs and biological therapy is needed. We also need to find ways to identify those patients who are at risk for more rapid disease progression who would benefit from intensive therapy early in the course of disease.
Nonholonomic navigation and control of cooperating mobile manipulators

This paper presents the first motion planning methodology applicable to articulated, nonpoint nonholonomic robots with guaranteed collision avoidance and convergence properties. It is based on a new class of nonsmooth Lyapunov functions and a novel extension of the navigation function method to account for nonpoint articulated robots. The dipolar inverse Lyapunov functions introduced are appropriate for nonholonomic control and offer superior performance characteristics compared to existing tools. The new potential field technique uses diffeomorphic transformations and exploits the resulting point-world topology. The combined approach is applied to the problem of handling deformable material by multiple nonholonomic mobile manipulators in an obstacle environment to yield a centralized coordinating control law. Simulation results verify asymptotic convergence of the robots, obstacle avoidance, boundedness of object deformations, and singularity avoidance for the manipulators.