Miracle-dz/UniFAR-FTUs huggingface dataset:
A bound on oscillations in an unsteady undular bore

Using a model equation for the evolution of long waves at the surface of an incompressible fluid, the number of rapid oscillations of an undular bore is estimated. This estimate relies on the analysis of the Burgers–Korteweg–deVries equation in spaces of analytic functions. Special attention is paid to the effect of viscosity.
Orie 6334 Spectral Graph Theory Lecture 27

Theorem 1 (Arora, Rao, Vazirani, 2004) There is an O( √ log n)-approximation algorithm for sparsest cut. The proof of the theorem uses a SDP relaxation in terms of vectors vi ∈ Rn for all i ∈ V . Define distances to be d(i, j) ≡ ‖vi − vj‖ and balls to be B(i, r) ≡ {j ∈ V | d(i, j) ≤ r}. We first showed that if there exists a vertex i ∈ V such that |B(i, 1/4)| ≥ n/4, then we can find a cut of sparsity ≤ O(1) ·OPT . If there does not exist such a vertex in V , then we can find U ⊆ V with |U | ≥ n/2 such that for any i ∈ U , 1/4 ≤ ‖vi‖ ≤ 4 and there are at least n/4 vertices j ∈ U such that d(i, j) > 1/4.
Born-Infeld Corrections to D3 Brane Action in AdS5 × S5 and N=4, d=4 Primary

We consider certain supersymmetric Born-Infeld couplings to the D3 brane action and show that they give rise to massless and massive KK excitations of type IIB on AdS5×S5, in terms of primary singleton Yang-Mills superfields. ∗Work supported in part by the EEC under TMR contract ERBFMRX-CT960090, ECC Science Program SCI∗ -CI92-0789 (INFN-Frascati), DOE grant DE-FG0391ER40662 and CONICIT fellowship
Aggregating User-Centered Rankings to Improve Web Search

This paper is to investigate rank aggregation based on multiple user-centered measures in the context of the web search. We introduce a set of techniques to combine ranking lists in order of user interests termed as a user profile. Moreover, based on the click-history data, a kind of taxonomic hierarchy automatically models the user profile which can include a variety of attributes of user interests. We mainly focus on the topics a user is interested in and the degrees of user interests in these topics. The primary goal of our work is to form a broadly acceptable ranking list, rather than that determined by an individual ranking measure. Experiment results on a real click-history data set show the effectiveness of our aggregation techniques to improve the web search.
Effects of Grain Processing with Focus on Grinding and Steam- Flaking on Dairy Cow Performance

Milk production and milk components are of prime economic importance for dairy farmers. Although milk production depends largely on numerous dietary nutrients, energy and protein are most critical. Feed grains containing starch such as corn, barley, wheat, and sorghum as a primary source of energy are commonly fed to beef and dairy cattle to improve meat or milk productions. Feed grain needs to be processed prior to feed cattle to increase accessibility of the endosperm by microbial population in the rumen and the host enzyme in the intestine. Grain processing is done by the application of various combinations of heat, moisture, time and mechanical actions. This article out-lines the effect of grain processing method and degree of processing on rate and extent of grain digestion in the digestive tract of cattle, and consequently on lactation performance and cattle health. Methods of grinding, rolling and steam flaking are particularly discussed on their advantages and disadvantages. The optimal degree of processing can achieve a balance between maximizing the extent and controlling the rate of starch digestion in the rumen to maximize utilization and avoid digestive and metabolic disturbances. A recent developed precision processing technique has been highlighted and discussed as well.
A novel invasion percolation model for co-interpenetrating composites

A Novel Invasion Percolation Model for Co-Interpenetrating Composites by Timothy James Perham Doctor of Philosophy in Materials Science and Engineering University of California, Berkeley Professor Lutgard C. De Jonghe, Chair A novel Invasion Percolation model for simulating the reactive metal infiltration of ceramics to form a co-interpenetrating composite is presented. By combining the pore-level dynamics of percolation models with kinetic Monte Carlo methods for simulating surface phase transformation it is possible to simulate both thermodynamic driving forces for infiltration: the applied pressure and the reactive wetting process. In doing so the model describes both the capillary fingering effects that dominate at high pressures and the time evolution of reaction byproduct phases that cause pore space closure at high temperature. At very high temperature and/or low pressure a "core-shell" morphology forms. At very high pressures the assumption of quasi-static flow in discrete pore throats is violated, and viscous channel flow occurs that leaves undesirable levels of residual porosity. Statistics derived from percolation theory were applied to determine the effective percolation threshold pressure for infiltration and the critical pressure for divergence of the fingerwidth. At pressure intermediate between these two extremes the residual pore size distribution was found to determine the probability of discrete pore cluster
Effects of Cu orientation on the microstructure of Sn-2Ag-2.5Zn /Cu interface

The effects of Cu orientation on the microstructure and growth of IMCs in Sn-2Ag-2.5Zn /Cu solder joints were studied. After reflowing at 250 °C for 10 s, the continuous scallop-like IMCs Cu6Sn5 in Sn-2Ag-2.5Zn /polycrystalline Cu solder joint were more flat and thinner than that on (110), (111) oriented Cu substrates. The grain size of IMC on single crystal Cu substrates was larger than that of IMC on polycrystalline Cu. While during aging time, the growth rate of IMC on polycrystalline Cu substrates was slower, compared with that on (110), (111) oriented Cu substrates, and the thickness of IMC on (110), (111) oriented Cu substrates showed no visible differences, It was observed that the thickness of IMC was proportional to the square of the time in aging process.
Psychomotor Stimulant Addiction: A Neural Systems Perspective

The reinforcing (rewarding) effects of psychomotor stimulants (cocaine and amphetamine) depend on the mesocorticolimbic dopamine system innervating the nucleus accumbens ([Wise, 1981][1]; for review, see[Koob, 1992][2]), perhaps especially the shell subregion ([Bassareo and Di Chiara, 1997][3]).
Endocrine disruptors and human health

Auteurs : CAUDEVILLE Julien, Chargé de projets et d’expertises scientifique à la direction Santé-Environnement-Travail de Santé publique France Responsable de l’unité d’enseignement de statistiques spatiales au Conservatoire National des Arts et Métiers (CNAM) de Paris FILLOL Clemence, Responsable de l’unité surveillance des expositions à la direction Santé Environnement Travail de Santé Publique France DENYS Sebastien, Directeur Santé-Environnement-Travail, Santé publique France
Salvianolic Acid A Protects the Peripheral Nerve Function in Diabetic Rats through Regulation of the AMPK-PGC1α-Sirt3 Axis

Salvianolic acid A (SalA) is one of the main efficacious, water-soluble constituents of Salvia miltiorrhiza Bunge. This study investigated the protective effects of SalA on peripheral nerve in diabetic rats. Administration of SalA (0.3, 1 and 3 mg/kg, ig) was started from the 5th week after strepotozotocin (STZ60 mg/kg) intraperitoneal injection and continued for 8 weeks. Paw withdrawal mechanical threshold (PWMT) and motor nerve conduction velocity (MNCV) were used to assess peripheral nerve function. The western blot methods were employed to test the expression levels of serine-threonine liver kinase B1 (LKB1), AMP-activated protein kinase (AMPK), peroxisome proliferator-activated receptor-gamma coactivator-1alpha (PGC-1α), silent information regulator protein3 (sirtuin 3/Sirt3) and neuronal nitric oxide synthase (nNOS) in sciatic nerve. Results showed that SalA administration could increase PWMT and MNCV in diabetic rats; reduce the deterioration of sciatic nerve pathology; increase AMPK phosphorylation level, up-regulate PGC-1α, Sirt3 and nNOS expression, but had no influence on LKB1. These results suggest that SalA has protective effects against diabetic neuropathy. The beneficial effects of SalA on peripheral nerve function in diabetic rats might be attributed to improvements in glucose metabolism through regulation of the AMPK-PGC1α-Sirt3 axis.
PRO-COW: Protocol Compliance on the Web

HTTP/1.1, protocol, World Wide Web, compliancy With the recent (draft) standardization of the HTTP/1.1 protocol on the Web, it is natural to ask what percentage of popular Web sites speak HTTP/1.1 and how compliant are these so-called HTTP/1.1 servers. We attempt to answer these questions through a series of experiments based on the protocol standard. The tests are run on a comprehensive list of popular Web sites to which a good fraction of the Web traffic is directed. Our experiments were conducted on a global extensible testing infrastructure that we built to answer the above questions. The same infrastructure will be used to answer questions like the percentage of the traffic flow that is end-to-end HTTP/1.1. Our results show reasons for concern on the state of HTTP/1.1 protocol compliancy and the subset of features actually available to end users.
Assessment of field size on radiotherapy machines using texture analysis

The main objective of this study was to verify the superimposition of light and radiation field automatically using image processing technique. For radiotherapy machines (Co-60 and linear accelerator), each film scanned using digitizer scanner then treat using image processing program MatLab, where the congruence of the light and radiation field should be determined. The scanned image saved in a TIFF file format to preserve the quality of the image. The data analyzed include upper, lower, right, and left borders of the light and radiation field in megavoltage films. The result showed that the mean light field size was 10.0 × 10.1 cm, medical physicist score was 10.2 ± 0.11608 cm × 10.2 ± 0.099861 cm, and the field size that calculated by computerized score using MatLab program was 9.9 ± 0.36049 cm × 9.9 ± 0.1123 cm, the result also showed that the computerized score is more accurate in determining of borders and penumbra than medical physicist score.
Optimal probabilistic fingerprint codes

We construct binary codes for fingerprinting digital documents. Our codes for n users that are ε-secure against c pirates have length O(c2log(n/ε)). This improves the codes proposed by Boneh and Shaw [1998] whose length is approximately the square of this length. The improvement carries over to works using the Boneh--Shaw code as a primitive, for example, to the dynamic traitor tracing scheme of Tassa [2005]. By proving matching lower bounds we establish that the length of our codes is best within a constant factor for reasonable error probabilities. This lower bound generalizes the bound found independently by Peikert et al. [2003] that applies to a limited class of codes. Our results also imply that randomized fingerprint codes over a binary alphabet are as powerful as over an arbitrary alphabet and the equal strength of two distinct models for fingerprinting.
Electron Paramagnetic Resonance: A High-Resolution Tool for Muscle Physiology

THOMPSON, L.V. , D.A. LOWE, D.A. FERRINGTON, and D.D. THOMAS, Electron paramagnetic resonance: a high-resolution tool for muscle physiology. Exerc. Sport Sci. Rev., Vol. 29, No. 1, pp 3-6, 2001. Skeletal muscle function can be altered by changes in protein structure and motion. Electron paramagnetic resonance (EPR) paired with site-directed spin labeling has been used to study the relationships between (a) muscle force and myosin structure and (b) muscle relaxation and Ca-ATPase motion and structure.
Urinary leukotriene E4 levels in patients with atopic dermatitis

Leukotriene synthesis may be increased in a variety of inflammatory diseases. Urinary leukotriene E4 is a stable metabolite of leukotrienes C4 and D4 which has previously been found to be increased in exacerbations of severe asthma and after antigen inhalation. Levels of urinary LTE4 in seven patients during and after a severe flare of atopic dermatitis were measured by high‐performance liquid chromatography (HPLC) and radioimmunoassay (RIA). Mean urinary LTE4 levels (± SEM) were not increased during (16·7 ± 3·7pg/μmol) or after (16·9 ± 4·8 pg/μxmol) the acute exacerbation of atopic dermatitis when compared with the normal range (mean = 23·8 [95% confidence interval 19·9–28·2] pg/μmol creatinine). These findings do not provide evidence of cysteinyl leukotriene involvement in the pathogenesis of atopic dermatitis.
The effect of finite deformations in the elastic stability of plane frames

The circumstances are discussed under which orthogonal relations exist between the elastic critical modes of plane frames subjected to proportional loading. Orthogonal relations may be obtained provided the loading does not produce any components of deformation associated with any of the critical modes at arbitrary levels of the load factor, and provided no part of the structure remains statically indeterminate due to bar forces when all rigid joints are replaced by pin joints. When at arbitrary load factors, the structure deforms with components associated with any of the buckling modes, the elastic failure load is not identical with the lowest elastic critical load, although for many frames the two loads may be very close. A general expression is obtained which reveals the relation between the deformations at an arbitrary load level and the deflexions given by linear analysis. The difference between the elastic failure load and the elastic critical load is discussed, and an approximate treatment applicable to certain types of frame and associated loading is developed.
Retrieval efficiency using combined indices

The problem considered here involves choosing the best set of indices for indexing a file on a secondary storage device where space may be limited. For a general class of queries and a specific index organization, approximations to the expected retrieval time for any choice of indices are developed. Subject to the simplifying assumptions the best selection of indices is obtained for several cases, both where the number of possible lists is constrained and where it is not. The examples indicate that retrieval time is quite sensitive to the choice made.
Nuclear Localization of IκBα Is Mediated by the Second Ankyrin Repeat: the IκBα Ankyrin Repeats Define a Novel Class of cis-Acting Nuclear Import Sequences

ABSTRACT The ability of the IκBα protein to sequester dimeric NF-κB/Rel proteins in the cytoplasm provides an effective mechanism for regulating the potent transcriptional activation properties of NF-κB/Rel family members. IκBα can also act in the nucleus as a postinduction repressor of NF-κB/Rel proteins. The mechanism by which IκBα enters the nucleus is not known, as IκBα lacks a discernible classical nuclear localization sequence (NLS). We now report that nuclear localization of IκBα is mediated by a novel nuclear import sequence within the second ankyrin repeat. Deletion of the second ankyrin repeat or alanine substitution of hydrophobic residues within the second ankyrin repeat disrupts nuclear localization of IκBα. Furthermore, a region encompassing the second ankyrin repeat of IκBα is able to function as a discrete nuclear import sequence. The presence of a discrete nuclear import sequence in IκBα suggests that cytoplasmic sequestration of the NF-κB/Rel–IκBα complex is a consequence of the mutual masking of the NLS within NF-κB/Rel proteins and the import sequence within IκBα. Nuclear import may be a conserved property of ankyrin repeat domains (ARDs), as the ARDs from two other ARD-containing proteins, 53BP2 and GABPβ, are also able to function as nuclear import sequences. We propose that the IκBα ankyrin repeats define a novel class of cis-acting nuclear import sequences.
Evaluation of Physical Symptoms in Patients on Peritoneal Dialysis

Introduction. Little is known about physical symptoms in peritoneal dialysis (PD) Patients. This study aims to determine the prevalence of symptoms (general and abdominal) in PD patients. Methods. A cross-sectional study, with subsequent followup, using an author-designed 21 symptoms questionnaire (15 nonabdominal and 6 abdominal). Each symptom was assessed on a scale 0–3 for severity (none–severe) and frequency (never–every day). Results. We studied 41 patients, mean age 60 ± 15 years, 56% male, 19.5% diabetics, and 51.5% on APD. Mean number of symptoms was 9.5 ± 3.9 and total symptoms score was 28.5 ± 12 with abdominal scores of 6.4 ± 4.8. Most frequent symptoms were lack of energy, itching, cramps, poor sleep, and loss of appetite. A second evaluation in 20 patients disclosed no statistical difference between the first and second assessments, or between subgroups. Cramps were the only symptoms which decreased over time (P = 0.120). Lack of energy did not correlate with haemoglobin, neither did itching with phosphate level. Conclusions. Physical symptoms are frequent and troublesome; they relate to advanced kidney disease and not specifically to PD. Symptoms remain stable over time and do not appear to relate to dialysis parameter markers.
Non-tuberculous mycobacteria in cystic fibrosis

BACKGROUND The clinical significance of the presence of non-tuberculous mycobacteria in the sputum of patients with cystic fibrosis is unclear. A retrospective case-control study was performed to assess possible risk factors for non-tuberculous mycobacteria and its impact on clinical status in patients with cystic fibrosis. METHODS The records of all patients attending the Leeds cystic fibrosis clinics who were positive for non-tuberculous mycobacteria were examined. Each case was matched with two controls for sex, age, and respiratory function at the time of the first non-tuberculous mycobacteria isolate. Details of respiratory function, nutritional status, antibiotic and corticosteroid therapy, Shwachman-Kulczycki (S-K) score, Northern chest radiographic score, and the frequency of isolation of other bacteria and fungi were collected from two years before to two years after the first non-tuberculous mycobacteria isolate. The patients’ genotype and the presence of diabetes mellitus were also recorded. RESULTS Non-tuberculous mycobacteria were isolated from 14 patients out of a cystic fibrosis population of 372 (prevalence = 3.8%). No significant effect of non-tuberculous mycobacteria was seen on respiratory function, nutritional status, or S-K score. There was a significant association with the number of intravenous antibiotic courses received before the first isolate with cases receiving, on average, twice as many courses as controls (cases 6.64, controls 2.86, 95% CI for difference 1.7 to 5.9). No significant difference was seen between cases and controls for Northern scores, previous steroid therapy, or the incidence of diabetes mellitus. CONCLUSIONS Non-tuberculous mycobacteria infection in patients with cystic fibrosis is uncommon and its clinical impact appears to be minimal over a two year period. Frequent intravenous antibiotic usage is a possible risk factor for colonisation with non-tuberculous mycobacteria.
Please Scroll down for Article Communications in Partial Differential Equations Global Regularity of the 3d Axi-symmetric Navier-stokes Equations with Anisotropic Data Global Regularity of the 3d Axi-symmetric Navier–stokes Equations with Anisotropic Data

This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material. In this paper, we study the 3D axisymmetric Navier–Stokes equations with swirl. We prove the global regularity of the 3D Navier–Stokes equations for a family of large anisotropic initial data. Moreover, we obtain a global bound of the solution in terms of its initial data in some L p norm. Our results also reveal some interesting dynamic growth behavior of the solution due to the interaction between the angular velocity and the angular vorticity fields.
Evaluating and improving quality of colorectal cancer care

De Dutch Surgical Colorectal Audit (DSCA) evalueert sinds 2009 op landelijk niveau de kwaliteit van colorectale zorg via clinical auditing. In dit proefschrift wordt het principe en effect van clinical auditing beschreven en wordt gekeken waar aangrijpingspunten voor kwaliteitsverbetering zijn en welke verbeteringen er zijn gerealiseerd in Nederland.
Development of a rapid screening method to determine the susceptibility to mould growth of novel construction and insulation products

Wood-based materials are commonly used in building construction/insulation as a replacement for solid timber. However, these materials are susceptible to microbiological growth and different environmental conditions influence the vulnerability of wood-based materials. Moulds are a common problem found within homes and cause aesthetic damage, health problems and can increase material vulnerability to degradation fungi. Moulds obtain food from substances contained within wood cell walls and are unable to breakdown the cell wall, hence the structure is largely left intact and the strength properties of the material are not impaired. There are a number of mathematical models available that can be used to evaluate durability and susceptibility of wood and wood-based materials. However, with increasing concern of climate change and new regulations and legislations inforce, novel and experimental materials are being researched and developed. These materials include wood-based materials produced in a different fashion or contain untested ligno-cellulosic components. Current models rely upon the use of known temperature and humidity dynamics of the subject material. These newly developed materials do not have the required historical data to fulfil the models. The purpose of this paper is to develop a quick, reliable screening method that will evaluate different materials for their susceptibility to moulds at optimal and limited conditions. The test methods are a modified version of ASTM 4445-91 and ISO 846. The moulds used are: Trichoderma virens, Aspergillus versicolo, Paecilomyces variotii, Aureobasidium pullulans, Cladiosporum sphaerospermum, Alternaria alternata,Chaetomium globosum and Penicillium rubens. The data obtained is used to determine if there is a correlation between and hygric test methods such as hot/cold immersion tests and Dynamic Vapour Sorption (DVS) tests
Free Lunch: Exploiting Renewable Energy for Computing

This paper argues for "Free Lunch", a computation architecture that exploits otherwise wasted renewable energy by (i) colocating datacentres with these remote energy sources, (ii) connecting them over a dedicated network, and (iii) providing a software framework that supports the seamless execution and migration of virtual machines in the platform according to power availability. This work motivates and outlines the architecture and demonstrates its viability with a case study. Additionally, we discuss the major technical challenges facing the successful deployment of Free Lunch and the limiting factors inherent in its design.