Miracle-dz/UniFAR-FTUs huggingface dataset:
A 60-GHz Band 2$\,\times\,$2 Phased-Array Transmitter in 65-nm CMOS

A 60-GHz band 2 × 2 phased-array transmitter implemented in 65-nm bulk CMOS is described. Two-dimensional beam steering in the azimuthal and elevation planes is implemented via LO phase shifting in a transmitter that also supports direct or IF up-conversion. Full current bleeding in the final upconversion mixer suppresses flicker noise, and dynamic LO biasing suppresses carrier feedthrough. The 2.9 × 1.4 mm2 chip consumes a total of 590 mW from a 1-V supply when driving all four channels at a maximum saturated output power of 11 dBm, with 20 dB gain per transmitter. Carrier leakage varies between - 20.5 dBc ±0.5 dB and sideband rejection is 25 to 28 dBc among the four transmitters when measured on the same die. The measured phase noise is 1.7 ± 1 dB higher than the theoretical 21.6 dB increase in the phase noise due to 12 X frequency multiplication of the injected LO. Maximum power-added efficiency of the transmit amplifier is greater than 16%, and gain is above 17 dB from 54 to 61 GHz.
Enrichment of French Biomedical Ontologies with UMLS Concepts and Semantic Types for Biomedical Named Entity Recognition Though Ontological Semantic Annotation

Medical terminologies and ontologies are a crucial resource for semantic annotation of biomedical text. In French, there are considerably less resources and tools to use them than in English. Some terminologies from the Unified Medical Language System have been translated but often the identifiers used in the UMLS Metathesaurus, that make its huge integrated value, have been lost during the process. In this work, we present our method and results in enriching seven French versions of UMLS sources with UMLS Concept Unique Identifiers and Semantic Types based on information extracted from class labels, multilingual translation mappings and codes. We then measure the impact of the enrichment through the application of the SIFR Annotator, a service to identify ontology concepts in free text deployed within the SIFR BioPortal, a repository for French biomedical ontologies and terminologies. We use the Quaero Corpus to evaluate.
Newsgames: Nuevas Tendencias en el Periodismo Ibérico

El fenómeno de la gamificación en España ha cobrado un papel principal en los nuevos modelos de negocios. Durante los últimos años las estrategias de ludificación han comenzado a aplicarse con éxito en múltiples sectores, incluidos los del periodismo y la comunicación. En el siguiente artículo exponemos las cuestiones sobre las que se sustentan estos nuevos modelos periodísticos y señalamos los retos a los que se enfrentan. Además exploramos los últimos news games producidos en la península ibérica.
Wireless energy transmission through a thin metal wall by shear wave using two piezoelectric transducers

We propose a system to wirelessly convey electric energy through a thin metal wall. Two piezoelectric transducers are used to realize energy transformation between electric and mechanical, and a rechargeable battery is employed to store the transmitted energy, both are integrated as a system through a modulating circuit. A synchronized switch harvesting on inductor (SSHI) in parallel with the transducer system is introduced to artificially extend the closed interval of the modulating circuit. The process of transmitting-energy is computed and the performance of the transducers is optimized in detail for a prescribed external electric source. The obtained results are useful in the understanding and design of wireless energy-supply systems.
Fault-tolerant matrix converter topologies and switching function algorithms for AC motor drives with delta connection windings

The first part of this paper present some modification on derived formulations given in a recent publication for switching function algorithms of three-phase matrix converter based drives against open failures. Also a remedial matrix converter structure and switching algorithms for continuous, fault-tolerant operation of matrix converter based AC motor drives with delta connection windings in case of open faults is developed. So the simulation results for the recently proposed fault-tolerant matrix converter in star connection motor are compared with corrected algorithms presented in this paper. Finally the same algorithm is applied to simulate fault-tolerant matrix converter topologies for AC motor drives with delta connection motor winding in order to show the feasibility of the proposed fault-tolerant matrix converter topology.
Association between iron deficiency and low-level lead poisoning in an urban primary care clinic.

OBJECTIVES The purpose of this study was to examine the association between iron deficiency and low-level lead poisoning. METHODS Data were collected in an urban primary care clinic from 3650 children aged 9 to 48 months. Iron deficiency was defined as a red cell mean corpuscular volume (MCV) of less than 70 fL and a red cell distribution width (RDW) of more than 14.5 in children younger than 2 years, and an MCV of less than 73 fL and RDW of more than 14.5 in those 2 years or older. RESULTS After adjustment for age, hemoglobin concentration, and insurance status, the odds ratios for iron deficiency predicting blood lead levels greater than or equal to 5 micrograms/dL and greater than or equal to 10 micrograms/dL were 1.63 (95% confidence interval [CI] = 1.29, 2.04) and 1.44 (95% CI = 1.004, 2.05). CONCLUSIONS Iron deficiency is significantly associated with low-level lead poisoning in children aged 9 to 48 months.
Metabolic imaging in the anesthetized rat brain using hyperpolarized [1‐13C] pyruvate and [1‐13C] ethyl pyruvate

Formulation, polarization, and dissolution conditions were developed to obtain a stable hyperpolarized solution of [1‐13C]‐ethyl pyruvate. A maximum tolerated concentration and injection rate were determined, and 13C spectroscopic imaging was used to compare the uptake of hyperpolarized [1‐13C]‐ethyl pyruvate relative to hyperpolarized [1‐13C]‐pyruvate into anesthetized rat brain. Hyperpolarized [1‐13C]‐ethyl pyruvate and [1‐13C]‐pyruvate metabolic imaging in normal brain is demonstrated and quantified in this feasibility and range‐finding study. Magn Reson Med 63:1137–1143, 2010. © 2010 Wiley‐Liss, Inc.
Don Jackson's "A critique of the literature on the genetics of schizophrenia": a reappraisal after 40 years.

In 1960, Don Jackson published "A Critique of the Literature on the Genetics of Schizophrenia. " Jackson's critique nearly relegated the classical twin method to obscurity as being hopelessly confounded by environmental factors. Jackson noted several trends in the schizophrenia twin data that were difficult to explain on genetic grounds. In fact, none of Jackson's 12 major points, examined in this article, have been satisfactorily answered by proponents of the twin method. The evidence in support of Jackson's most controversial claim-that the psychology of twinship itself might lead to a greater rate of schizophrenia among twins when compared with the single-born population--is inconclusive. However, although several leading twin researchers have dismissed Jackson's entire thesis on the basis of the inconclusiveness of this one claim, this idea was not central to Jackson's basic argument. The research undertaken for this article appears to confirm the validity of the most important points of Jackson's analysis and that therefore the classical twin method is of doubtful value as an indicator of genetic influences on schizophrenia and other diagnoses or psychological trait differences. Jackson's article demonstrated the implausibility of what came to be known as the MZ/DZ "equal environment assumption" of the twin method, implying that the twin method records nothing more than environmental differences between monozygotic and dizygotic twins.
Towards 4 D Crop Analysis in Precision Agriculture : Estimating Plant Height and Crown Radius over Time via Expectation-Maximization

In previous work [1] we showed how to apply modern sensor fusion and computer vision techniques to obtain a dense 3D reconstruction of a crop for precision agriculture. In this work we consider the case in which we have multiple 3D reconstructions, obtained from sensor data collected over several weeks. From this collection of dense reconstructions, we want to estimate how the size and height of each plant evolve over time. The problem is challenging since the 3D reconstructions may contain very partial views of each plant. Moreover, the presence of multiple plants (and background) requires solving the data association problem, which makes our goal even more challenging. We propose a general probabilistic model to estimate shape and appearance of objects (the plants) using factor graphs. Then, we tailor the formulation to precision agriculture, and we show that the choice of a suitable parametrization and the use of expectation-maximization enables fast inference on plant growth. Our approach provides high-level description of the status of each plant, and this can inform the farm manager and enhance situational awareness. Current results are extremely encouraging, and open several avenues for future research.
Relaciones causales entre las TIC, la CIM y el valor de marca: un estudio a partir de las percepciones de los huéspedes

Las empresas hoteleras se estan enfrentando a un nuevo entorno caracterizado por los avances rapidos en las Tecnologias de Informacion y Comunicacion (TIC), donde el consumidor representa una parte integral de sus estrategias de marketing y comunicacion. Las TIC han potenciado un nuevo enfoque nombrado Comunicacion Integrada de Marketing (CIM), considerado como un elemento que contribuye a la creacion del valor de marca. Este trabajo pretende profundizar en la naturaleza de los constructos TIC, CIM y valor de marca desde la perspectiva del consumidor. El estudio empirico se ha llevado a cabo en los hoteles de alta categoria ubicados en Dalmacia, la provincia mas grande en la costa de Croacia y la mayor atraccion turistica del pais. Se ha investigado a 101 huespedes de 13 hoteles con la finalidad de analizar las relaciones entre todas las variables estudiadas desde una perspectiva causal. El analisis mediante la tecnica PLS confirma la influencia de las TIC en la implementacion de la CIM y el efecto positivo de la CIM sobre la imagen, la calidad percibida y la lealtad hacia la marca, entendidas como las dimensiones significativas del valor de marca.
Neopterin: An immune biomarker of coronary artery disease and its association with other CAD markers

Neopterin has been considered as an important marker of cellular inflammation. The primary objective of the current study was to determine the role of neopterin in cardiovascular disease and its association with other well known cardiac markers. The study was composed of total 200 subjects (100 confirmed coronary artery disease (CAD) patients, 50 recently diagnosed, and 50 managed CAD patients) both men and women and 100 healthy control individuals of matching age and weight. Serum neopterin analysis was done using commercial available ELISA kits. Other cardiac markers viz. troponin, creatine kinase (CK), CK MB isoenzyme (CKMB), lactate dehydrogenase (LDH), fibrinogen, C‐reactive protein (CRP), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) estimation was done by standard routine biochemical methods. Neopterin level was found to be remarkably enhanced by 150% and 513% in the recently diagnosed and managed CAD patients, respectively. CK level also showed a significant rise by 62% in the managed patients. However, recently diagnosed patients did not show any significant change. Moreover, cross correlation study showed statistically significant (P < 0.01) change in neopterin and CK levels between recently and managed patients. In the other studied CAD markers such as CKMB, fibrinogen and LDH also showed a significant increase in both categories of patients. CRP level was also found to be significantly enhanced by 357% (P < 0.01) and 341% (P < 0.05) in recently diagnosed and managed patients respectively. Because of cost effectiveness, easy and quick analysis of neopterin in the serum sample, we propose neopterin as the prognostic as well as diagnostic biomarker of CAD before other markers could be tested especially in Saudi population. © 2015 IUBMB Life, 67(6):453–459, 2015
Redefining the role of dendritic cells in periodontics

A properly functioning adaptive immune system signifies the best features of life. It is diverse beyond compare, tolerant without fail, and capable of behaving appropriately with a myriad of infections and other challenges. Dendritic cells (DCs) are required to explain how this remarkable system is energized and directed. DCs consist of a family of antigen presenting cells, which are bone-marrow-derived cells that patrol all tissues of the body with the possible exceptions of the brain and testes. DCs function to capture bacteria and other pathogens for processing and presentation to T cells in the secondary lymphoid organs. They serve as an essential link between innate and adaptive immune systems and induce both primary and secondary immune responses. As a result of progress worldwide, there is now evidence of a central role for dendritic cells in initiating antigen-specific immunity and tolerance. This review addresses the origins and migration of DCs to target sites, their basic biology and plasticity in playing a key role in periodontal diseases, and finally, selected strategies being pursued to harness its ability to prevent periodontal diseases.
Comercio colaborativo como alternativa de competitividad en empresas de la cadena de valor metalmecánica de Sogamoso

En este articulo se presenta el modelo de negocio del Comercio Colaborativo (c-commerce) el cual permite la integracion entre las empresas y sus socios estrategicos de negocio a traves de las tecnologias de informacion con el fin de generar competitividad en el sector metalmecanico que actualmente esta en crisis debido a la fuerte competencia internacional. El c-commerce en este estudio se enfoca en la Cadena de Abastecimiento, ya que ofrece mayores beneficios entre proveedores, procesos y clientes. Se toma el caso de las empresas ubicadas en el Parque Industrial de Sogamoso en donde se presenta una fuerte concentracion de industrias del sector que generan empleo en la region y a las cuales se ha aplicado un instrumento de medicion con el fin de caracterizar a la industria y concluir sobre la necesidad de aplicar un modelo de c-commerce para enfrentar de manera satisfactoria la crisis y lograr competitividad.
Optimal FSO relay nodes placement with link obstacles and infeasible regions

Optimal relay placement is studied for free-space optical multi-hop communication when obstacles and infeasible regions exist. We propose an optimization framework to find the optimal relay locations in the specified available regions and make laser links bypass obstacles of various shapes. A grouping optimization technique is proposed to reduce the optimization time when the number of relays is large, and we numerically demonstrate that this technique can provide solutions close to the optimal solutions, and its average searching time grows linearly with the number of relays. Simulation results show that our proposed optimization framework can effectively provide good solution to the problem of optimal relay placement in limited available regions, and enable the laser links to bypass obstacles in order to achieve minimum end-to-end outage probability.
In search of yoga: Research trends in a western medical database

Context: The promotion of yoga practice as a preventative and treatment therapy for health outcomes in the western hemisphere is increasing rapidly. As the commercial success of yoga burgeons in popular culture, it is important to investigate the trends of yoga as a therapeutic intervention in academic literature. The free-access search engine, PubMed is a preeminent resource to identify health-related research articles published for academics, health practitioners and others. Aims: To report the recent yoga-related publications in the western healthcare context with particular interest in the subject and type of yoga titles. Materials and Methods: A bibliometric analysis to describe the annual trends in publication on PubMed from January 1950 to December 2012. Results: The number of yoga-related titles included in the PubMed database is limited until a marked increase 2000 and steady surge since 2007. Bibliometric analysis indicates that more than 200 new titles are added per annum since 2011. Systematic reviews and yoga trials are increasing exponentially, indicating a potential increase in the quality of evidence. Titles including pain management, stress or anxiety, depression and cancer conditions are highly correlated with yoga and healthcare research. Conclusions: The prevalence of yoga research in western healthcare is increasing. The marked increase in volume indicates the need for more systematic analysis of the literature in terms of quality and results.
Improvement of electroluminescence from CdF2/CaF2 intersubband transition light-emitting structure by trench patterning and hydrogen annealing of Si substrate

An improvement of the electroluminescence (EL) intensity of the CdF2/CaF2 intersubband transition (ISBT) light-emitting structure is reported. In the ISBT active region, the precise control of crystal growth is strongly required. In this work, the hydrogen-annealing surface flattening of Si substrates was employed to obtain a high quality active region to suppress non-radiative leakage current. A markedly flat surface was obtained in the 30-µm-wide trench bottom after hydrogen annealing. In the EL measurement of the device fabricated in the trench, the EL intensity was approximately 40 times stronger than that of the device without patterning and hydrogen annealing.
Structure and Ferroelectric Properties of High  $T_{c}$  BiScO3–PbTiO3 Epitaxial Thin Films

Piezoelectric ceramics of new composition with higher Curie temperature T<sub>c</sub> are extensively studied for better piezoelectric microelectromechanical systems (MEMS). Apart from the compositional research, enhanced T<sub>c</sub> could be achieved in a modified structure. We have considered that a designed laminated structure of Pb(Zr, Ti)O<sub>3</sub> (PZT)-based thin film, i.e., relaxed heteroepitaxial epitaxial thin film, is one of the promising modified structures to enhance T<sub>c</sub>. This structure exhibits an extraordinarily high T<sub>c</sub>, i.e., T<sub>c</sub> ~ 600 °C (bulk T<sub>c</sub> ~ 365 °C). In this paper, we have fabricated the designed laminated structure of high T<sub>c</sub> (1- x)BiScO<sub>3</sub>-xPbTiO<sub>3</sub>. T<sub>c</sub> of BS-0.8PT thin films was found to be extraordinarily high, i.e., T<sub>c</sub> ~ 750 °C (bulk T<sub>c</sub>, ~500 °C). Their ferroelectric performances were comparable to those of PZT-based thin films. The present BS-xPT thin films have a high potential for fabrication of high-temperature-stable piezoelectric MEMS. The mechanism of the enhanced Tc is probably the presence of the mechanically stable interface to temperature in the laminated structure. We believe this designed laminated structure can extract fruitful properties of bulk ferroelectric ceramics.
Participar ou não participar, eis a questão! Um estudo sobre o engajamento dos estudantes de Administração em atividades extracurriculares

O presente trabalho tem como principal objetivo avaliar o envolvimento dos estudantes de administracao da Universidade Federal do Vale Do Sao Francisco (UNIVASF) em atividades extracurriculares. De modo especifico, buscou-se identificar quais as atividades complementares mais praticadas pelos estudantes atualmente, um vislumbre das dificuldades encontradas para a nao participacao, alem de tracar o perfil dos alunos participativos e nao participativos em tais atividades. A fim de averiguar tais questoes foram aplicados questionarios nas nove turmas existentes, coletando dados de 162 estudantes. Os resultados refutam a ideia de que eles sao pouco participativos em atividades extracurriculares. As atividades com maiores participacoes sao aquelas de curta duracao como palestras, mesas redondas e encontros da area, de modo contrario o engajamento em projetos de iniciacao cientifica ainda e muito modesto. Os motivos para a nao participacao sao em grande parte por falta de tempo em decorrencia de atividades laborais e, em segundo lugar, por falta de conhecimento da existencia dessas atividades. Isso em virtude principalmente da falta de divulgacao da instituicao em geral, mas tambem pela timida publicidade por parte dos idealizadores das atividades.
Vu du pont : l’Etalon-or de l’entre-deux-guerres etait-il un ‘regime’ ?

Cet article met en garde contre l’utilisation rigide de la theorie des regimes de change pour expliquer le role international de l’etalon-or dans les origines, la transmission et l’ampleur de la Grande Depression. Contrairement a l’idee selon laquelle les ‘principes sous-jacents’ au fonctionnement d’un regime international d’etalon-or auraient ete determinants dans les choix politiques et auraient inevitablement entraine un effondrement des prix mondiaux et la depression, l’etude des archives prouve que les interets politiques et institutionnels ont eu une influence decisive sur les choix politiques, et que des marges de manœuvre significatives existaient a travers "les chaines d’or" du regime de l’etalon-or en vigueur dans l’entre-deux-guerres.
Beggs networks might optimize information processing The criticality hypothesis : how local cortical

, published , doi: 10.1098/rsta.2007. 2092 366 2008 Phil. Trans. R. Soc. A John M Beggs networks might optimize information processing The criticality hypothesis: how local cortical References elated-urls http://rsta.royalsocietypublishing. org/content/366/1864/329.full. html#r Article cited in: html#ref-list-1 http://rsta.royalsocietypublishing. org/content/366/1864/329.full. This article cites 47 articles, 9 of which can be accessed free Email alerting service here in the box at the top right-hand corner of the article or click Receive free email alerts when new articles cite this article sign up
Reliability of an Objective Method of Evaluating Skeletal Maturity based on Cervical Vertebral Bone Age as Compared with the TW2 Method

Objectives: Skeletal age is an indicator of level of physiological maturity and growth potential. Determination of skeletal age helps clinician in decision making in terms of modality and timing of orthodontic treatment. There are various methods to determine physiological maturity, most of which are not quantitative. This can be overcome by using any of the quantitative methods like TW2 (Tanner-Whitehouse), which uses handwrist radiographs and provides a numeric skeletal age. Mito et al have proposed a regression formula to derive skeletal age using measurements on cervical vertebrae C3 and C4. The present study aims to estimate the reliability of this formula by determining a correlation between cervical vertebral bone age and the age estimated by TW2 method using hand-wrist radiographs. Materials and methods: One hundred and fifty subjects, 75 boys and 75 girls within the age range of 8.0 to 14.9 years were selected. Both lateral cephalograms and hand-wrist radiographs of each subject were taken. Cervical vertebral bone age was determined by the formula given by Mito et al. Bone age from hand-wrist radiographs was determined by using TW2 method. Correlations between chronological age and vertebral age and between vertebral age and bone age were determined by the use of Pearson’s correlation coefficient. Results: In both comparisons, correlation was significantly higher in girls than in boys. The results suggest that cervical vertebral bone age reflects skeletal maturity; hence, it might be possible to evaluate maturity in a detailed and objective manner.