Miracle-dz/UniFAR-FTUs huggingface dataset:
Modeling and analysis of conductive voltage noise for a DC-DC buck converter

Voltage noise from a synchronised buck converter is known to causes various problems in electronic system design. The power supply noise is generally related to the switching activity of the converters. Voltage noise from switching dc/dc converter shows different behaviours at switching and ringing frequencies. In this paper, we first proposal analytical expressions to evaluate voltage ripples at switching frequency with considerations of complex decoupling structures with parasitics. We also developed an equivalent RC circuit model with step sources to represent ringing noise in the switching waveform at input side of buck converter. Passive parasitics from layout are extracted from electromagnetic models of print circuit boards. Based on analysis of our proposal model, novel design methods are given to mitigate supply noise. Our analytical expressions and models have been verified with measurements on a buck converter design in a high-speed system. System performance has been improved after applying optimization techniques from buck converter design and layout suggested from our models.
Eficiencia en la provisión de servicios de infraestructura portuaria : una aplicación al tráfico de contenedores en España

Eficiencia en la provision de servicios de infraestructura portuaria: Una aplicacion al trafico de contenedores en Espana. En este trabajo se persiguen varios objetivos. En primer lugar, se desea medir la eficiencia tecnica del servicio de prestacion de infraestructura en los principales puertos estatales en trafico de contenedores en el periodo 1990-2002. En segundo lugar, se pretende estudiar si la regulacion portuaria llevada a cabo la decada de los anos 90 tuvo algun efecto sobre la eficiencia de las autoridades portuarias. Los trabajos que han analizado el impacto de cambios regulatorios en diferentes ambitos portuarios han encontrado que tales modificaciones conducen a mejoras de la eficiencia portuaria (Cullinane, et al. 2002; Estache et al., 2002; Martin, 2002; Pestana, 2003; Diaz, 2003). Existen ciertos factores que condicionan el entorno donde operan las empresas, como pueden ser, por ejemplo, las caracteristicas orograficas de una region. En estas circunstancias, Lovell (2001) recomienda incorporar las caracteristicas de los entornos operativos en el analisis. Esta consideracion da origen al tercer objetivo que se plantea en la aplicacion empirica y que consiste en incorporar dos caracteristicas a las que se enfrentan los puertos espanoles de forma desigual. La primera es que existen puertos insulares, sujetos a trafico cautivo, donde el nivel de competencia es reducido, y por otro lado, pueden encontrarse puertos situados en territorio continental, donde existe numerosas alternativas para importar o exportar mercancia (carretera, ferrocarril, otros puertos), lo que condiciona que estos puertos se enfrenten a un grado de competencia mayor. La segunda es que algunos puertos se benefician de la existencia de refinerias en localidades proximas al mismo. Este hecho hace que la cantidad de granel liquido de estos puertos se considerablemente superior a la de otros. La metodologia empleada para medir la eficiencia tecnica es la funcion de distancia, por su facilidad para representar la tecnologia de procesos productivos multiproducto, y por no requerir datos sobre precios, que no son comparables en el periodo sujeto a estudio.
Impairment of activities of daily living and incident heart failure in community‐dwelling older adults

Instrumental activities of daily living (IADLs) are tasks that are necessary for independent community living. These tasks often require intact physical and cognitive function, the impairment of which may adversely affect health in older adults. In the current study, we examined the association between IADL impairment and incident heart failure (HF) in community‐dwelling older adults.
Designing digital and creative scaffolds to strengthen Indigenous nations: being Wiradjuri by practising sovereignty

ABSTRACT The proliferation of digitally mediated DIY practices constitutes new modalities of political expression and participation, shaping how citizenship is enacted and performed. However, our paper begins by problematizing concepts of citizenship in media and communication contexts that only speaks to identity-formation. For Indigenous Australians, citizenship does not need to be asserted or constructed—they are sovereign and they have never ceded their land, rights or identity. Pursuing this argument, we share insights of various digital and creative scaffolds that are being designed with Wiradjuri people as continuous ‘infrastructuring’ to express and practice Wiradjuri sovereignty. This exploration is enabling a political identity to form and creating multiple places to be Wiradjuri together. We also discuss how designing digital and creative scaffolds can be considered as a meeting place of sovereigns, to attend to a consciousness that non-Indigenous people are also practising their own sovereignty in relation to respecting Indigenous sovereignty/ies.
Tumor‐reactive CD8+ T‐cell clones in patients after NY‐ESO‐1 peptide vaccination

A major objective of peptide vaccination is the induction of tumor‐reactive CD8+ T‐cells. We have shown that HLA‐A2 positive cancer patients frequently develop an antigen‐specific CD8+ T‐cell response after vaccination with NY‐ESO‐1 peptides p157‐165/p157‐167. These T‐cells are highly reactive with the peptides used for vaccination, but only rarely recognize HLA‐matched, NY‐ESO‐1 expressing tumor cell lines. To address the apparent lack of tumor recognition of vaccine‐induced CD8+ T‐cell responses, we used autologous tumor cells for in vitro stimulation and expansion of pre‐ and postvaccine CD8+ T‐cells. In contrast to standard presensitization methods with peptide‐pulsed antigen‐presenting cells, mixed lymphocyte tumor culture favored the selective expansion of low‐frequency tumor‐reactive T‐cells. In four patients, we were able to demonstrate that antigen‐specific and tumor‐reactive T‐cells are detectable and are indeed elicited as a result of NY‐ESO‐1 peptide vaccination. Further analyses of postvaccine antigen‐specific T‐cells at a clonal level show that vaccine‐induced antigen‐specific T‐cells are heterogeneous in functional activity. These results suggest that the methods of immunomonitoring are critical to identify the proportion of tumor‐reactive T‐cells within the population of vaccine‐induced antigen‐specific effector cells. Our results show that immunization with NY‐ESO‐1 peptides leads to strong tumor‐reactive CD8+ T‐cell responses. Our findings suggest that approaches to peptide vaccination may be improved to induce higher numbers of antigen‐specific T‐cells and to selectively increase the proportion of CD8+ T‐cells that have the capacity to recognize and eliminate tumor cells. © 2007 Wiley‐Liss, Inc.
Helping Processes in a Mutual Aid Organization for Persons with Emotional Disturbance

Abstract To date, the notion of helpfulness of group processes has been equivocal in research on self-help groups. This article argues that findings drawn from the participants’ subjective appraisals of helpfulness carry meanings different from those drawn from the correlational approach. In a mutual aid organization serving adults with mental health problems, the study found that, whereas universality, self-disclosure, and instillation of hope were the most valued processes, support and catharsis were the strongest correlates of benefits of participation. The authors propose a two-level hierarchy that distinguishes sustaining and beneficial factors. Different sets of factors should constitute the focus of facilitation at different stages of group development.
KEYLESS CRYPTOGRAPHY IN GRID COMPUTING USING CYCLIC SHIFT TRANSPOSITION

Grid computing involves in the process of forming dynamic virtual organizations and associated resources in which the security is an important factor.Grid computing, is a distributed computing model in which new kind of systems are combined to form a heterogeneous computational resources such as computers, storage space, sensors, and experimental data. The grid can seamlessly, transparently and dynamically supply the computing and data resources when a user wants to request them. In recent years, security issues has become an important concern for grid computing. A strong mutually encrypted and decrypted methodology is needed for user and to prevent the grid resources from being illegally visited. Many cryptographic schemes have been proposed in recent periods for solving the security issues.However, most of them are not ideal for the grid computing technologydue to its computational overhead and the standard of encryption. In this paper, we proposed a keyless Cyclic Shift Transposition Algorithm(CSTA) which uses a combination of shifting and transposition without public or private key to secure the data in the grid computing system. Experimental results shows that the proposed algorithm prevents not only known attacks but also maintains the integrity of data.
Anti-ganglioside antibodies profile in Guillain-Barré syndrome: Correlation with clinical features, electrophysiological pattern, and outcome

Background: Guillain-Barré syndrome (GBS) and its subtypes are associated with distinct anti-ganglioside antibodies. Hence, we aimed to determine the frequency of anti-ganglioside antibodies and its correlation with clinical features, electrophysiological patterns, and outcome in patients with GBS. Material and Methods: The data regarding clinical features, electrophysiological patterns, and outcome at 6 months were collected and analyzed from the case records of patients diagnosed with GBS during 2008–2013 at a tertiary care hospital in south India. Results: A total of 204 patients with GBS were studied, and 73 patients (mean age: 37.6 ± 17.5 years) who underwent anti-ganglioside antibody testing were analyzed. Male-to-female ratio was 2.5:1. IgG anti-ganglioside antibodies were positive in 41/73 patients. The most common IgG anti-ganglioside antibody observed in the acute demyelinating variant was anti-GT1b (n = 13; 17.8%), and, those in the acute axonal variant were anti-GM1, anti-GM2, anti-GD1b, and anti-GT1b antibodies (n = 9;12.3% each). Three patients died and 5 patients were unable to walk independently at the end of 6 months. Conclusions: The frequency of anti-ganglioside antibodies in our cohort with GBS was 56%, with IgG anti-GT1b antibody being the most common. The anti-ganglioside antibodies were significantly positive in acute motor axonal neuropathy (AMAN) subtype of GBS. The presence of anti-ganglioside antibodies was not found to be of significant use in predicting the outcome. Although it was observed that the absence, and not the presence, of anti-ganglioside antibodies was associated with antecedent infection, dysautonomia, and requirement of ventilator support, the overall disease severity was not antibody dependant.
Finding Information Just for You: Knowledge Reuse Using Collaborative Filtering Systems

In todays networked business environment, with the endless increase in available information, relevant information is becoming more and more difficult to find. Collaborative filtering (CF) generates recommendations for users based on others evaluations. CF has great potential to improve information search and knowledge reuse. Previous studies have mostly focused on the improvement of CF algorithms. Little research has been done on the effect of users and types of product domains on the performance of CF systems. In this study, four factorsproduct domain, user characteristics, users search mode, and number of users that are expected to affect the accuracy of CF systems were identified and investigated. The effects of the four factors were tested using data collected from two experiments in two different product domains: movies and research papers. It was shown that CF systems work better for knowledge-intensive domains than consumer product domains. The accuracy of CF systems is affected by users search mode and knowledge in a domain. This study demonstrates that CF systems have great potential in information search and customization. It also shows that a successful CF system needs to be designed to handle multiple modes of search, even within a domain and user group.
High-end LTE service evolution in Korea: 4 years of nationwide mobile network measurements

This paper provides a temporal cellular and WiFi networks analysis from a nationwide crowdsourcing measurement study. Our dataset consists of 2.98M user-initiated quality tests on 3G/LTE/WiFi involving 157K mobile devices from Nov. 2012 to July 2016 (187 weeks) in South Korea. Our analysis explains changes in QoS from the user perspective, not Mobile Network Operators (MNO). We revealed that WiFi shows twice higher compounded quarterly growth rate for download throughput against LTE. Yet, LTE and WiFi show almost no difference in absolute download throughput value as of mid 2016. Second, LTE delivers relatively low latency, less-varying loss rate, and higher throughput in overall. Finally, the result shows that the evolution for the high-end LTE services has been faster than user adoption, where the majority of the LTE users stays below 75 Mbps of throughput.
Propagation, reflection and transmission of precipitation fronts in the tropical atmosphere.

The behavior of the interface between the precipitating and non-precipitating regions is analyzed in an idealized model for the large scale atmospheric circulation. This model uses a quasi-equilibrium relaxation closure in which convection acts to removed the convective instability. It is shown that in the strict quasiequilibrium limit, i.e. for instantaneous convective adjustment, the boundary between the dry and moist regions can exhibit a discontinuity in the precipitation rate and vertical velocity. This interface, referred here to as a precipitation front, behaves as a propagating shock. Three distinct precipitation fronts can be obtained: drying front, slow moistening front and fast moistening front. The front velocity is distinct from the propagation speed of dry and moist disturbances and must be determined by solving a Riemman problem. Stationary precipitation fronts are also found in steady solutions for idealized Walker circulations in both one and two dimensions. Dry gravity waves and coupled convective-gravity waves are partially
The PHO84 gene of Saccharomyces cerevisiae encodes an inorganic phosphate transporter

The PHO84 gene specifies Pi-transport in Saccharomyces cerevisiae. A DNA fragment bearing the PHO84 gene was cloned by its ability to complement constitutive synthesis of repressible acid phosphatase of pho84 mutant cells. Its nucleotide sequence predicted a protein of 596 amino acids with a sequence homologous to that of a superfamily of sugar transporters. Hydropathy analysis suggested that the secondary structure of the PHO84 protein consists of two blocks of six transmembrane domains separated by 74 amino acid residues. The cloned PH084 DNA restored the Pi transport activity of pho84 mutant cells. The PHO84 transcription was regulated by Pi like those of the PHO5, PHO8, and PHO81 genes. A PHO84-lacZ fusion gene produced beta-galactosidase activity under the regulation of Pi, and the activity was suggested to be bound to a membrane fraction. Gene disruption of PHO84 was not lethal. By comparison of nucleotide sequences and by tetrad analysis with GAL80 as a standard, the PHO84 locus was mapped at a site beside the TUB3 locus on the left arm of chromosome XIII.
Uncovering Business Relationships: Context-sensitive Relationship Extraction for Difficult Relationship Types

This paper establishes a semi-supervised strategy for extracting various types of complex business relationships from textual data by using only a few manually provided company seed pairs that exemplify the target relationship. Additionally, we offer a solution for determining the direction of asymmetric relationships, such as “ ownership of ”. We improve the reliability of the extraction process by using a holistic pattern identiﬁcation method that classiﬁes the generated extraction patterns. Our experiments show that we can accurately and reliably extract new entity pairs occurring in the target relationship by using as few as ﬁve labeled seed pairs.
Analyse von Schulbüchern als Grundlage empirischer Geschichtsdidaktik

Historische Narrationen in Schulbuchern vermitteln ganzen Generationen Geschichtsbilder, die lange wirksam sind und manchmal auch den Erkenntnissen aktueller Forschung widersprechen. Wegen ihrer Relevanz und Reichweite sind Schulbucher eine ideale Basis fur empirische Untersuchungen. Das hieraus entwickelte Raster kann als "Steinbruch" fur die Analyse jeder anderen historischen Narration dienen. Auf dem Weg zum Analyseraster wurden fachdidaktische Erkenntnisse gewonnen, uberpruft und praxisnah aufbereitet. Auf Grundlage der Analyseergebnisse zeigt dieser Band z.B. auf, wie ein multimediales Geschichtsschulbuch aussehen konnte, wie Hauptschuler in ihrer Kompetenzentwicklung vor ihrer ersten Unterrichtstunde stehen. Ein Buch fur jeden, der sich mit Geschichtsdidaktik in Empirie, Theorie und Praxis beschaftigt.
The Neural Basis of Intrusions in Free Recall and Cued Recall: A PET Study in Alzheimer's Disease

This study was designed to map in Alzheimer's disease patients the correlations between resting-state brain glucose utilization measured by PET and the number of intrusions obtained by means of a specially designed episodic memory test separately in free recall and in cued recall. SPM revealed significant negative correlations between the number of intrusions in free recall and the metabolism of the right superior frontal gyrus. For the intrusions in cued recall, the negative correlations concerned the left rhinal cortex. Our findings suggest that intrusions in free recall reflect perturbations in strategic processes and that intrusions in cued recall are triggered by the cue in a relatively automatic manner. Frontal dysfunction would be responsible for the former and rhinal dysfunction for the latter.
Development and Validation of a Negative-Strand-Specific Reverse Transcription-PCR Assay for Detection of a Chicken Strain of Hepatitis E Virus: Identification of Nonliver Replication Sites

ABSTRACT As a positive-strand RNA virus, hepatitis E virus (HEV) produces an intermediate negative-strand RNA when it replicates. Thus, the detection of negative-strand viral RNA is indicative of HEV replication. The objective of this study was to develop a negative-strand-specific reverse transcription-PCR (RT-PCR) assay for the identification of extrahepatic sites of HEV replication. Briefly, a 494-bp fragment within the orf1 gene of a chicken strain of HEV (designated avian HEV) was amplified and cloned into a pSK plasmid. A synthetic negative-strand viral RNA was generated from the plasmid by in vitro transcription and was used to standardize the assay. A nested set of primers was designed to amplify a 232-bp fragment of the negative-strand viral RNA. The assay was found to detect up to 10 pg and 10−5 pg of negative-strand HEV RNA in first- and second-round PCRs, respectively. The standardized negative-strand-specific RT-PCR assay was subsequently used to test 13 conveniently obtained tissue specimens collected sequentially on different days postinoculation from chickens experimentally infected with avian HEV. In addition to the liver, the negative-strand-specific RT-PCR assay identified replicative viral RNA in gastrointestinal tissues, including the colorectal, cecal, jejunal, ileal, duodenal, and cecal tonsil tissues. The detection of replicative viral RNA in these tissues indicates that after oral ingestion of the virus, HEV replicates in the gastrointestinal tract before it reaches the liver. This is the first report on the identification of extrahepatic sites of HEV replication in animals after experimental infection via the natural route. The assay should be of value for studying HEV replication and pathogenesis.
Younger Dual-Eligibles Who Use Federally Qualified Health Centers Have More Preventable Emergency Department Visits, but Some Have Fewer Hospitalizations

Objective: To determine whether younger dual-eligibles receiving care at federally qualified health centers (FQHCs) have lower rates of ambulatory care sensitive (ACS) hospitalization and emergency department (ED) visits. Data Sources: We used the 100% Medicare Part A and Part B institutional claims from 2007 to 2010 for dual-eligibles younger than 65 years, enrolled in traditional fee-for-service Medicare, who received care at an FQHC or lived in a primary care service area with an FQHC. Methods: Our cross-sectional analysis used negative binomial regressions to model ACS hospitalizations and ED visits as a function of prior year FQHC use. The model adjusted for beneficiary age, gender, race, and chronic diseases, as well as county fixed effects, time trends, and race-FQHC use interactions. Results: FQHC use is associated with a decrease in ACS hospitalization rates for whites (2.8 per 1000 persons), but an increase among blacks (2.5 per 1000 persons). FQHC use is also associated with an increase in ACS ED visits, from 27 to 33 more visits per 1000 persons per year, depending on patient race. Conclusions: ACS hospital use is higher for FQHC users than nonusers, but white FQHC users have fewer ACS hospitalizations. More research is needed to understand how this relationship varies within and between centers.
Alignment and interconnection of photovoltaics on electric and hybrid electric vehicles

In this paper we discuss the alignment and system structures of photovoltaics on the roof of electric vehicles (EVs) and hybrid electric vehicles (HEVs). We focus on the interconnection of PV cells. In general, the position of photovoltaics on the roof of automobiles is crucial and has a strong impact on the photovoltaic (PV) output behaviour, in particular their output power level. We present strategies which allow the adaption of system structures according to changes in environmental conditions. As a result, we increase output performance levels by changing the interconnection of photovoltaics dynamically.
Quantitative and conformational characterization of lysozyme deposited on balafilcon and etafilcon contact lens materials

Purpose. To determine whether differences in lysozyme deposition and/or activity exist on worn etafilcon and balafilcon contact lenses following care with a polyquaternium-based system (PQ) or a polyhexanide-based system (PHMB). Methods. Following acid-based deposit extraction, lysozyme concentration was determined via Western blotting and lysozyme activity was determined by a micrococcyl assay. Results. Lysozyme deposition on etafilcon lenses was greater following disinfection with the PHMB-based system (1551 ± 371µg/lens vs 935 ± 271µg/lens; p < 0.001). Deposition on balafilcon lenses was not influenced by the care regimen (10 ± 3.5µg/lens vs 10 ± 5µg/lens; p = 0.89). For both materials, the percentage of denatured lysozyme was greater when they were exposed to the PHMB-based system (28 vs 21%; p = 0.05 (etafilcon) and 57 vs 40%; p = 0.04 (balafilcon)). Conclusions. The quantity and conformation of lysozyme deposited on hydrogel contact lens materials is significantly influenced by both lens material and care regimen.