Miracle-dz/UniFAR-FTUs huggingface dataset:
CONCEPTUALIZATION AND CHARACTERIZATION OF INTRAPRENEURSHIP: AN EXPLORATORY STUDY

This article corresponds to a qualitative type of research whose purpose is to represent the phenomenon of intrapreneurship in terms of its conceptualization and characterization through documentary analysis, as well as the application, transcription, coding and analysis of 11 interviews with people related with the corporate entrepreneurship in the northeast area of Mexico. The interactions with the research subjects led to the categorization of codes of first and second order in terms of connotation attributed by the respondent to the term (CO) and the characteristics of normative perception in terms of resources and capacities of intrapreneurial companies (CA). The subcodes attributed to such families allowed a contrast between the information derived from the contributions of the research subjects and the existing theoretical-empirical knowledge . Resumen El presente articulo corresponde a un tipo cualitativo de investigacion cuya finalidad es representar el fenomeno del intraemprendimiento en cuanto a su conceptualizacion y caracterizacion por medio del analisis documental, asi como la aplicacion, transcripcion, codificacion y analisis de 11 entrevistas realizadas a personas relacionadas con el emprendimiento en la empresa en la zona noreste de Mexico. Las interacciones con los sujetos de investigacion derivaron en la categorizacion de codigos de primer y segundo orden en cuanto a connotacion atribuida por el entrevistado al termino (CO) y las caracteristicas de percepcion normativa en terminos de recursos y capacidades de las empresas intraemprendedoras (CA). Los subcodigos atribuidos a tales familias permitieron un contraste entre la informacion derivada de las aportaciones de los sujetos de investigacion y el conocimiento teorico-empirico existente . Resumo Este artigo corresponde a um tipo qualitativo de pesquisa cujo objetivo e representar o fenomeno do intraemprego em termos de sua conceituacao e caracterizacao por meio de analise documental, bem como a aplicacao, transcricao, codificacao e analise de 11 entrevistas feitas a pessoas relacionadas ao intraempreendedor na zona nordeste do Mexico. As interacoes com os sujeitos da pesquisa levaram a categorizacao de codigos de primeira e segunda ordem em termos de conotacao atribuidos pelo respondente ao termo (CO) e as caracteristica da percepcao normativa em termos de recursos e capacidades de empresas intraempreoristas (CA). Os subcodigos atribuidos a essas familias permitiram um contraste entre as informacoes derivadas das contribuicoes dos sujeitos da pesquisa e do conhecimento teorico-empirico existente .
Experimental assessment of WiMAX transmissions under highly time-varying channels

Modern wireless communication systems, such as WiMAX, rely on Orthogonal Frequency Division Multiplexing, a very robust modulation against frequency-selectivity, but very sensitive to time-selectivity, which is a typical feature in mobility scenarios. In this work, experimental measurements in real scenarios are carried out by employing WiMAX signals including the standard-compliant pilot signals. Highly time-varying conditions are induced by enlarging the symbol period by time interpolation in the digital domain. In addition, the performance of Inter-Carrier Interference cancellation techniques, which take advantage of the WiMAX pilot structure, are tested to evaluate their behaviour under highly time-varying conditions.
Intervention of Type 2 Diabetes With GLP-1RA Caused Early Worsening and Remission of Diabetic Retinopathy

In the post-hoc analysis of Sustain-6, semaglutide increased early worsening (EW) of diabetic retinopathy (DR) in patients recruited to the study. We report a case of type 2 diabetes complicated with EW of DR, treated with continuous short acting lixisenatide followed by exenatide twice a day. A 43-year-old man diagnosed as overt type 2 diabetes with 10.7% of HbA1c having two-year history with obesity was treated with lixisenatide and switched to exenatide. After strict control by GLP-1RA and metformin, OCT confirmed the development of macular edema. He was treated with Ranibizumab injection and remission of macular edema was recognized after 1 year under the continuous treatment with exenatide. This case supports the notion that EW can occur in both types of diabetes mellitus and be a phenomenon associated with the rapidity and magnitude of improvement in glycemic control by GLP-1RA regardless of the use of insulin. Our case also exhibited remission from EW under continuous strict control by short acting GLP-1RA and assured the effect of ranibizumab on macular edema observed in EW.
On Extending the Application-domain of the CSC 1

Ross (1967) stated the well-known restriction that nothing may move out of a coordinate structure unless movement is Across-the-Board (ATB) (see also Williams (1978)). This restriction is generally referred to as the Coordinate Structure Constraint (CSC). (1a) is grammatical, because which car has moved from all coordinates, whereas (1b) is bad, because movement is from the first coordinate (C1) only.
Robust Distributed Localization with Data Inference for Wireless Sensor Networks

We consider the range-based localization with highly insufficient inter-node distance measurements in Wireless Sensor Networks (WSNs). With an error model established, a novel distributed probabilistic localization approach which exploits the network constraints through statistical inference on missing distances is proposed. The advantage of the new approach over traditional methods is proved analytically and further confirmed by extensive simulations.
Scalable interaction design for collaborative visual exploration of big data

Novel input devices such as tangibles, smartphones, multi-touch surfaces etc. have given impetus to new interaction techniques. In this PhD research, the main motivation is to study novel interaction techniques and designs that augment collaboration in a collocated environment. Furthermore, the main research aim is to take advantage of scalable interaction design techniques and tools that can be applied in a variety of devices so as to help users to work together on a problem with an abstract big data set, using visualizations on a collocated context.
Enhanced database support for location-based services

The ubiquity of GPS-enabled mobile devices and sensors have led to the explosive growth of time-stamped location data. Consequently Location-Based Services (LBS) has become a popular technology impacting various aspects of our lives. LBS applications are characterized by very high rate of location record updates, and many concurrent historic, present and predictive queries. Commercial LBS providers rely on relational databases to manage their data. However, traditional relational databases do not provide adequate support to meet the growing demands of many LBS systems. Moreover, existing indexing techniques that support historical queries are unable to sustain high update and query throughput as required by many LBS applications. To address this, we propose to exploit in-memory database techniques and present a few key ideas to support high performance commercial LBS. We also introduce a novel in-memory spatio-temporal index in which the spatial domain is organized as grid cells and for each grid cell partial temporal indexes are maintained for moving objects that visited the cell. The partial temporal indexes are implemented as compressed bitmaps. Using fast bitmap operations and utilizing parallelism rendered by multi-core systems, our system offers significantly better performance than traditional relational databases.
Homologous pairs of regulatory proteins control activity of Bacillus subtilis transcription factor sigma(b) in response to environmental stress

In Bacillus subtilis, activity of the general stress transcription factor sigma B is controlled posttranslationally by a regulatory network that transmits signals of environmental and metabolic stress. These signals include heat, ethanol, or osmotic challenge, or a sharp decrease in cellular energy levels, and all ultimately control sigma B activity by influencing the binding decision of the RsbW anti-sigma factor. In the absence of stress, RsbW binds to sigma B and prevents its association with RNA polymerase core enzyme. However, following stress, RsbW binds instead to the RsbV anti-anti-sigma factor, thereby releasing sigma B to direct transcription of its target genes. These two principal regulators of sigmaB activity are encoded in the eight-gene sigB operon, which has the gene order rsbR-rsbS-rsbT-rsbU-rsbV-rsbW-sig B-rsbX (where rsb stands for regulator of sigma B). Notably, the predicted rsbS product has significant amino acid identity to the RsbV anti-anti-sigma factor and the predicted rsbT product resembles the RsbW anti-sigma factor. To determine the roles of rsbS and rsbT, null or missense mutations were constructed in the chromosomal copies or each and tested for their effects on expression of a sigma B-dependent reporter fusion. On the basis of this genetic analysis, our principal conclusions are that (i) the rsbS product is a negative regulator of or" activity, (ii) the rsbT product is a positive regulator, (iii) RsbS requires RsbT for function, and (iv) the RsbS-RsbT and RsbV-RsbW pairs act hierarchically by a common mechanism in which key protein-protein interactions are controlled by phosphorylation events.
Cuestionarios usados en pacientes con trastornos de la conducta alimentaria

espanolEn los Trastornos de la Conducta Alimentaria (TCA), ademas de las entrevistas medica, nutricional y psicologica, se necesitan pruebas psicometricas que proporcionen objetividad a las observaciones de los profesionales tanto en el primer contacto con los pacientes como en su evolucion. Para ello, se utilizan una serie de cuestionarios que evaluan los distintos aspectos que influyen en este tipo de trastornos. En este trabajo se detallan algunos de los cuestionarios mas utilizados en TCA, aportando relevante informacion para mejorar la efectividad en el tratamiento por parte del equipo interdisciplinar. EnglishIn Eating Disorders (ED), in addition to medical, nutritional and psychological interviews, psychometric tests are needed to provide objectivity to the observations of professionals both in the first contact with patients and in their evolution. In order to do this, a series of questionnaires are used to evaluate the different aspects that influence this type of disorder. In this article some of the most used questionnaires in ED, providing relevant information to improve the effectiveness in treatment by the interdisciplinary team.
An examination of the biodevelopment of gender expression in children ages 6-to 12-years

Abstract:Previous clinical research on children who experience gender dysphoria has demonstrated links between marked childhood gender variant behaviour and several variables thought to provide a window on biological processes affecting brain sexual differentiation during the pre-/perinatal period. These variables include handedness, birth order, and birth weight. The present study investigated, via parent-report, whether these factors were associated with inter-individual variation in childhood gender expression in a large community sample (n = 2377, 51.4% boys). Consistent with previous studies, elevated gender variance was associated with non-right-handedness in boys and girls, and later fraternal birth order in boys. In contrast to prior clinical studies, there were no associations between gender expression and birth order in girls, and no interactions of birth weight and birth order in predicting gender variance in boys. Thus, handedness in both genders and late fraternal birth order in boys appear to apply widely as predictors of inter-individual variation in childhood gender expression, whereas the other factors examined here may only predict more marked levels of gender variance as examined in previous clinical research of children who experience gender dysphoria.
Adapting Self-Training for Semantic Role Labeling

Supervised semantic role labeling (SRL) systems trained on hand-crafted annotated corpora have recently achieved state-of-the-art performance. However, creating such corpora is tedious and costly, with the resulting corpora not sufficiently representative of the language. This paper describes a part of an ongoing work on applying bootstrapping methods to SRL to deal with this problem. Previous work shows that, due to the complexity of SRL, this task is not straight forward. One major difficulty is the propagation of classification noise into the successive iterations. We address this problem by employing balancing and preselection methods for self-training, as a bootstrapping algorithm. The proposed methods could achieve improvement over the base line, which do not use these methods.
Re-examining coherent arbitrariness for the evaluation of common goods and simple lotteries

The assumption that people make decisions based on a constant set of preferences, so that choices should not depend on context-specific cues (anchors), is one of the cornerstones of economic theory. We reexamined the effects of an anchoring manipulation on the valuation of common market goods that was introduced in Ariely, Lowenstein and Prelec (2003). We found much weaker anchoring effects. We performed the same manipulation on the evaluation of binary lotteries, and we found no anchoring effects. This suggests limits on the robustness of strong anchoring effects. Hence, the evidence that people have "arbitrary preferences" may not be conclusive, and economic theory may still be valid in many cases of interest.
A graph-based iterative compiler pass selection and phase ordering approach

Nowadays compilers include tens or hundreds of optimization passes, which makes it difficult to find sequences of optimizations that achieve compiled code more optimized than the one obtained using typical compiler options such as -O2 and -O3. The problem involves both the selection of the compiler passes to use and their ordering in the compilation pipeline. The improvement achieved by the use of custom phase orders for each function can be significant, and thus important to satisfy strict requirements such as the ones present in high-performance embedded computing systems. In this paper we present a new and fast iterative approach to the phase selection and ordering challenges resulting in compiled code with higher performance than the one achieved with the standard optimization levels of the LLVM compiler. The obtained performance improvements are comparable with the ones achieved by other iterative approaches while requiring considerably less time and resources. Our approach is based on sampling over a graph representing transitions between compiler passes. We performed a number of experiments targeting the LEON3 microarchitecture using the Clang/LLVM 3.7 compiler, considering 140 LLVM passes and a set of 42 representative signal and image processing C functions. An exhaustive cross-validation shows our new exploration method is able to achieve a geometric mean performance speedup of 1.28x over the best individually selected -OX flag when considering 100,000 iterations; versus geometric mean speedups from 1.16x to 1.25x obtained with state-of-the-art iterative methods not using the graph. From the set of exploration methods tested, our new method is the only one consistently finding compiler sequences that result in performance improvements when considering 100 or less exploration iterations. Specifically, it achieved geometric mean speedups of 1.08x and 1.16x for 10 and 100 iterations, respectively.
Tree-structured Temporal Information for Fast Histogram Computation

In this paper we present a new method for fast histogram computing. Based on the known tree-representation histogram of a region, also called reference histogram,, we want to compute the one of another region. The idea consists in computing the spatial differences between these two regions and encode it to update the histogram. We never need to store complete histograms, except the reference image one (as a preprocessing step). We compare our approach with the well-known integral histogram, and obtain better results in terms of processing time while reducing the memory footprint. We show theoretically and with experimental results the superiority of our approach in many cases. Finally, we demonstrate the advantage of this method on a visual tracking application using a particle filter by improving its time computing.
Design and Analysis of Super-Wide Bandpass Filters Using a Novel Compact Meta-Structure

This paper presents a novel compact meta-structure, which is characterized by left-handed properties. In the novel structure, two linear arrays of metallic vias and short-stub inductors are used to generate shunt inductors besides the series interdigital capacitors. Compared with conventional composite right/left-handed transmission-line structures, the new structure has weaker coupling to other components and is easily controlled by adjusting the shunt inductance and series capacitance to produce different left-handed properties. Due to the isolation of two via arrays, the proposed structure can also be transplanted directly from the microstrip system to the coplanar-waveguide system. We have proposed an efficient procedure to retrieve the equivalent propagating modes for both forward and backward waves based on the matrix pencil method, which provides an easy way to study the propagation characteristics. Using such a meta-structure, a series of super-wide bandpass filters are designed and fabricated at different frequency bands. Good agreements between simulation and experiment results have been achieved, and good performance in passbands and stopbands has been observed with a relative 3-dB bandwidth larger than 70%. For easy design of such super-wide bandpass filters, an experienced formula is given between the physical size and the center frequency of the 3-dB passband, which can be used to redesign any filters at other frequency bands
Beneficial Effects of Clopidogrel Combined With Aspirin in Reducing Cerebral Emboli in Patients Undergoing Carotid Endarterectomy

Background—Postoperative thromboembolic stroke affects 2% to 3% of patients undergoing carotid endarterectomy (CEA) and is preceded by 1 to 2 hours of increasing cerebral embolization. Previous work has demonstrated that high rates of postoperative embolization are associated with increased platelet reactivity to adenosine 5′-diphosphate (ADP). Our hypothesis was that preoperative administration of the platelet ADP antagonist clopidogrel could reduce postoperative embolization. Methods and Results—One hundred CEA patients on routine aspirin therapy (150 mg) were randomized to 75 mg clopidogrel (n=46) or placebo (n=54) the night before surgery. Platelet response to ADP was assessed by whole-blood flow cytometry. The number of emboli detected by transcranial Doppler within 3 hours of CEA was independently quantified. Time taken from flow restoration to skin closure was used as an indirect measure of the time to secure hemostasis. In comparison with placebo, clopidogrel produced a small (8.8%) but significant reduction in the platelet response to ADP (P <0.05) while conferring a 10-fold reduction in the relative risk of those patients having >20 emboli in the postoperative period (odds ratio, 10.23; 95% CI, 1.3 to 83.3; P =0.01, Fisher’s exact test). However, in the clopidogrel-treated patients, the time from flow restoration to skin closure (an indirect marker of hemostasis) was significantly increased (P =0.04, Fisher’s exact test), although there was no increase in bleeding complications or blood transfusions. Conclusions—This is the first study to show that a CEA patient’s postoperative thromboembolic potential can be significantly reduced by targeted preoperative antiplatelet therapy without increasing the risk of bleeding complications.
The lifecontingencies Package: Performing Financial and Actuarial Mathematics Calculations in R

It is possible to model life contingency insurances with the lifecontingencies R package, which is capable of performing financial and actuarial mathematics calculations. Its functions permit one to determine both the expected value and the stochastic distribution of insured benefits. Therefore, life insurance coverage can be priced and portfolios risk-based capital requirements can be assessed. This paper briefly summarizes the theory regarding life contingencies that is based on financial mathematics and demographic con- cepts. Then, with the aid of applied examples, it shows how the lifecontingencies package can be a useful tool for executing routine, deterministic, or stochastic calculations for life-contingencies actuarial mathematics.
Modulation recognition techniques for improving communication efficiency in SDR networks

Next century demand for a low cost, high efficiency wireless technology is expected to be the commercial implementation of Software Defined Radio (SDR) paradigm. This is expected to improve base station efficiency and robust universal receivers to provide seamless high quality service to the end user. One of the many problems which need to be solved effectively to make SDR infrastructure more efficient is modulation recognition. With robust modulation recognition module at the receiver, there will be no need to communicate transmission format type to the receiver which results in wastage of bandwidth. It will also allow base stations as well as mobiles to use a transmission method which is just right for the given channel conditions and to meet customer requirements on cost and quality of service. In this paper we review some interesting modulation recognition techniques after discussing the modulation recognition problem in some detail. We also present a modulation recognition method using six interesting features and study its performance.
Data reduction and bandwidth allocation for video-based network system

In the paper, in order to reliably transmit video data and preserve the required visual information to clients, progressive data reduction based on available bandwidth of camera or client is designed and dynamic bandwidth allocation algorithm base on captured visual content information is proposed to raise bandwidth utilization. Furthermore, experimental results are shown to demonstrate the benefit and exceptional result of proposed progressive data reduction and dynamic bandwidth allocation method.
Associação tonal em sentenças declarativas neutras do português de Bissau e de São Tomé

Neste estudo, investigamos comparativamente a associacao tonal em sentencas declarativas neutras de duas variedades africanas de portugues – faladas em Bissau (PGB) e Sao Tome (PST) –, no que tange a relacao entre entoacao (Ladd 1996, 2008) e formacao de constituintes prosodicos (Nespor & Vogel 1986, 2007). Em Sao Tome, o portugues e a lingua materna da maioria da populacao jovem (Alexandre & Hagemeijer 2013), enquanto que, na Guine-Bissau, o idioma e uma lingua minoritaria, nao materna, mas sociopoliticamente importante (Couto & Embalo 2010). Embora tenham status linguisticos distintos, a analise prosodica dos dados revela que, apesar de suas particularidades, as duas variedades de portugues apresentam grande similaridade entoacional. Tanto no PGB quanto no PST (i) existe uma alta densidade tonal, marcada pela associacao frequente (PGB) ou obrigatoria (PST) de um acento tonal a cada palavra fonologica, (ii) acentos frasais L– podem ser associados a fronteiras de sintagmas fonologicos e (iii) os contornos nucleares dos sintagmas entoacionais exibem uma conguracao tonal descendente H+L* L% (majoritaria no PGB) ou baixa L* L% (majoritaria no PST). Ademais, a comparacao dos dados com os padroes tonais ja descritos para o portugues brasileiro (PB) e europeu (PE) (e.g. Frota et al. 2015) revela que as declarativas neutras do PGB e do PST possuem caracteristicas entoacionais que as aproximam entre si e das variedades do PB – todas variedades ultramarinas de portugues –, e as distancia das variedades do PE (em especial, a variedade padrao).