Miracle-dz/UniFAR-FTUs huggingface dataset:
Modeling household water demands using sinusoidal models

Household water in Kenya is used in agricultural activities, industrial activities and other uses. A lot of water is consumed by indoor appliances. The water management strategy affects the household demand for water. The future demand of water in Kenyan towns has remained uncertain. Therefore this study sought to model household water demand using the nonparametric model in the spectral domain. This study largely relied on the secondary data that was collected from Gusii Water and Sanitation Company (GWASCO) situated in Kisii town. This study inspected the data for trend by applying Mann Kendal trend test and it was realized that the p-value = 0.012< Siginificance level, α = 5% indicating that the water demand data had a trend. The parameters of the sinusoidal model was estimated and they were: B1 = 90.28176, B2 = 69.06094 and μ = 3586.94540 The developed model was used in conducting in sample forecasting. The forecasted values were plotted together with those of GWASCO and comparison was made. This study noted no significant difference in the plots. Therefore, the model was employed in conducting out of sample forecasting. The out sample forecasted values increased with time. This study concluded that the water data had a trend, had periodic variations hence could be modeled using the sinusoids and that the forecasts increased with time.
Scalar Quantization Algorithms for the Robust Transmission of Correlated Sources Over One- and Two-Way Channels

The problem of lossy transmission of correlated sources over discrete two-way channels (TWCs) is considered. The objective is to develop a robust low delay and low complexity source-channel coding scheme without using error correction. A simple full-duplex channel optimized scalar quantization (COSQ) scheme that implicitly mitigates TWC interference is designed. Numerical results for sending Gaussian bivariate sources over binary additive-noise TWCs with either additive or multiplicative user interference show that, in terms of signal-to-distortion ratio performance, the proposed full-duplex COSQ scheme compares favourably with half-duplex COSQ. Moreover, our numerical results illustrate that one can achieve significant gain when the propose two-user COSQ is optimally designed for a discrete TWC with additive Markov noise compared to the case when the TWC is fully interleaved. Furthermore, it is demonstrated that correlation between sources can be useful in order to reduce quantization distortion and boost the decoders’ reconstruction reliability. Also, we investigated the effects of feedback in the design of a COSQ over a discrete one-way channel with additive Markov noise by proposing an adaptive COSQ (ACOSQ) where the channel input sequence are adaptively generated based on the received symbols over the feedback link. Numerical results indicate that one can achieve a lower overall distortion by employing feedback in the design of a quantizer
Spatial V2X Traffic Density Channel Characterization for Urban Environments

In this work, Vehicle-to-everything (V2X) wireless communications performance is analyzed, in order to account for inherent scenario complexity, in the deployment phase of wireless systems towards the implementation of a Context Aware environment. An urban environment has been simulated by means of an in-house three-dimensional (3D) Ray Launching algorithm, coupled with a microscopic vehicular movement simulator, accounting for embedded urban elements as well as variable traffic densities within the complex environment. Large-scale and small-scale results are presented, as well as statistical analysis of the impact of different traffic densities. A campaign of measurements in the same real scenario has been performed, showing good agreement with wireless channel estimations for the considered frequency. These results can aid in V2X deployment configurations in urban environments, in order to minimize power consumption, optimize interference levels and increase overall system performance.
Evaluación del curso virtual de Genética Humana en estudiantes universitarios de ciencias de la salud

Introduccion: Los entornos de aprendizaje en linea ofrecen nuevas formas de comunicacion que permiten a docentes y estudiantes intercambiar informacion, conocimientos e ideas, tanto en espacios asincronicos como en tiempo real. En esta modalidad se desarrollo un curso electivo de Genetica Humana para complementar la formacion de estudiantes de pregrado del area de la salud. Objetivo: Evaluar la satisfaccion con el uso y la percepcion del trabajo en una asignatura virtual de Genetica Humana en estudiantes universitarios pertenecientes a carreras del area de la salud de la Universidad de Concepcion. Metodos: Estudio de tipo cuantitativo, no experimental y transversal. Mediante una encuesta de preguntas cerradas y abiertas, se determino el grado de satisfaccion de los estudiantes con respecto a los aspectos pedagogicos, tecnologicos y el ambiente virtual de aprendizaje. Resultados: Los estudiantes evaluaron en forma satisfactoria el curso virtual. En cuanto a la percepcion del ambiente virtual, las opiniones positivas estuvieron centradas en la autonomia (40 %) y en la experiencia de aprendizaje (38 %). Los aspectos negativos se enfocaron en la responsabilidad hacia el aprendizaje (75 %) y la relacion con el docente (25 %). Conclusiones: El curso virtual es util para el aprendizaje de la Genetica Humana, y constituye un espacio que favorece la adquisicion de conocimientos y el desarrollo de competencias como la autonomia y el trabajo en equipo. Normal 0 false false false ES X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri",sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi; mso-ansi-language:ES; mso-fareast-language:ES;} 800x600 Normal 0 21 false false false ES X-NONE X-NONE MicrosoftInternetExplorer4
Human Immmunodeficiency Virus Infection Related Pneumocystis Jiroveci Pneumonia and Suicide: An Autopsy Case Report

Pneumocystis jiroveci edinsel bağışıklık yetmezliği sendromunda en sık rastlanan ve ciddi bir opportunistik enfeksiyondur. İnsan bağışıklık yetmezlik virüsü (HIV) enfeksiyonu saptanan olgularda %80’e varan oranlarda gelişebilmektedir. Bu olgu intihar eden 32 yaşında HIV pozitif bir hastada gelişmiş Pneumocystis jiroveci pnömonisi olgusudur. Olgu, akciğerlerde saptanan histopatolojik bulguların sunulması yanında HIV pozitif hastaların intihar eğilimi göstermelerine dikkat çekmek amacıyla sunulmuştur.
Redes Convolucionales Siamesas y Tripletas para la Recuperación de Imágenes Similares en Contenido

espanolEl objetivo del trabajo presentado fue el desarrollo de un sistema de recuperacion de imagenes con base en su contenido, utilizando redes convolucionales siamesas y tripletas. Se utilizaron estas arquitecturas multiples para generar descriptores visuales, extrayendo informacion semantica de dos imagenes (siamesa) o tres imagenes (tripleta) a la vez. Posteriormente, se realizo un aprendizaje de similitud, codificando la distancia de estas siamesas o tripletas de descriptores visuales, cuyo almacenamiento no es necesario. Los resultados muestran que los esquemas con base en redes convolucionales extraen mayor cantidad de informacion semantica. Las arquitecturas multiples, aparte de extraer informacion semantica, mejoran la tasa de recuperacion de imagenes. Se concluye que las arquitecturas multiples solucionan los tres retos mas importantes de estos sistemas, como lo son la brecha semantica, el aprendizaje de similitud y el espacio de almacenamiento, los cuales no habian sido resueltos en trabajos anteriores. EnglishThe objective of this paper was the development of a content-based image retrieval system, using siamese and triplet convolutional neural networks. These networks were used to generate visual descriptors, extracting semantic information from two images (siamese) or three images (triplet) at the same time. Then, a similarity learning was done, encoding these two or three visual descriptors. In the proposed scheme the storage of descriptors is not required. The experimental results show that the schemes based on convolutional neural networks extract more semantic information. The siamese and triplet architectures, apart from extracting semantic information, improved the image retrieval rate. It is concluded that the proposed scheme solved three of the main challenges in these systems, such as, semantic gap, similarity learning and storage space, which have not been solved in the previous works.
Comparison of breast cancer recurrence and outcome patterns between patients treated in 1986-1992 and 2004-2008.

521 Background: Different patterns of breast cancer (BC) recurrence overtime have been reported according to estrogen receptor (ER) status. We report a change in BC recurrence patterns. Methods: Females with biopsy proven BC, stages I-III, treated at the BCCA 1986-1992 (cohort 1 – C1) and mid 2004-2008 (cohort 2 – C2), with known ER and HER2 status were eligible. Data was prospectively collected. C2 cases were matched to C1 by random case selection for grade and stage to adjust for imbalances. Endpoints were annual hazard rates of recurrence (HRR) and annual hazard rates of death (HRD). Results: After random sampling, 10,283 pts were included: 3672 in C1 and 6611 in C2. BC subtypes in C1 and C2 were, respectively, ER+/HER2-: 71.2 vs 64.8%; ER+/HER2+: 6.7 vs 11.7%; ER-/HER2+: 6.5 vs 8.2%; ER-/HER2-: 15.5 vs 15.3%. The HRR per yearly interval (up to year 9) for all subtypes have halved in C2. For ER+/HER2- BC, HRR in C2 was half of the HRR in C1. Differences in HRR between C1 and 2 were greater in the initi.
Titanium‐in‐biotite thermometry in porphyry copper systems: Challenges to application of the thermometer

Empirical geothermometer dealing with Ti solubility in the Fe‐Mg biotites was originally proposed for biotites in graphitic, peraluminous metapelites containing ilmenite or rutile that equilibrated roughly at 4–6 kbar. Given that biotites are abundant in the porphyry copper systems, this geothermometer has frequently been used for the determination of magmatic–hydrothermal temperatures in the porphyry copper systems. Common associations of porphyry copper deposits (PCDs), that is, low Al content of biotite, biotite chloritization (causes the biotite to become more magnesian and to lose Ti), and biotite formation by amphibole replacement, as well as disequilibrium, local equilibrium, or re‐equilibration of biotites, especially through potassic alteration, may provide significant uncertainty in the temperatures estimated a by Ti‐in‐biotite geothermometer. In addition, besides the calibration range of thermometer for pressure (400–600 MPa), the temperatures of major sulfide precipitation in PCDs (>~400°C) does not fit with the temperature range of thermometer calibration (480–800°C). Worth noting, as confirmed by fluid inclusion data in the Sarkuh PCD, regardless of presence of mineralogical requirements, obtained temperatures of sulfide mineralization using Ti in biotite thermometer could be overestimated. This may be due to the difference between general conditions of sulfide mineralization and calibration range of Ti in the biotite thermometer for pressure and temperature, as well as the metaluminous nature of biotites in PCDs.
La viande de lapin

La viande de lapin constitue une source de proteines de grande valeur biologique. Elle est plus riche en proteines et plus pauvre en calories et en sodium que la plupart des autres viandes. Sa faible teneur en lipides et son equilibre particulier en acides gras permet de la recommander comme viande de regime
Preanalytical Error Sources: Pediatric Laboratory Experience

Laboratory results are known to be effective in approximately 70% of medical decisions (1). For this reason, accurate laboratory results are important in processes such as diagnosis of the disease, its classification, treatment, and follow-up. The total testing process includes all the steps from the clinician’s decision to request the test to the reporting of the laboratory result to be used in a decision. In recent years, these stages have been examined in five different categories. The phase in which the test is requested and performed is called the pre-preanalytical phase, the phase beginning from the test request to the analysis of the sample is called the preanalytical phase, the phase from the control of the laboratory results to the approval is called the post-analytical phase, and the phase from the evaluation of the results to its use in the decision is called the post postanalytical phase (2, 3). Errors can occur at any of these stages in the medical laboratory. Although the main goal in the development of laboratory medicine is to reduce analytical errors, it has been shown that approximately 62% of all errors occur in the preanalytical stage (4-6).
Complémentarité fonctionnelle en phytoremédiation dans un sol à contamination mixte

Phytoremediation potential of a co-planting system between a shrub and an herbaceous species compared to the species in monocultures was evaluated. A greenhouse experiment with a woody species, Salix interior, and three herbaceous species, Achillea millefolium, Trifolium pratense and Festuca arundinacea was conducted in a mixed chromated copper arsenate (CCA) and pentachlorophenol (PCP) contaminated soil for 120 days. Plant aboveground and belowground dry mass, trace element concentrations in plant tissues, and soil PCP concentrations were used as metrics of the impact of the treatments. The co-planting did not influence biomass production in all treatments, except for S. interior in co-cropping with F. arundinacea (SF). A higher total biomass is then expected on the mixed crops system associated with higher phytoremediation potential. Species in polycultures all had equal or superior trace element concentrations in their tissues compared to their monocultures. The polyculture SF led to increased Cr and Cu total uptake in the roots of F. arundinacea. However, the death of all S. interior individuals in this treatment precluded the formulation of definite interpretations. Treatments effects on PCP dissipation were inconclusive because of the low soil concentrations found at the beginning and at the end of the experiment. The results therefore suggest that the co-planting of a shrub species with an herbaceous species could lead to higher phytoremediation potential than monocultures, and that further investigation is required to identify the most promising plant combinations.
The supraorbital keyhole approach for clipping of anterior circulation ruptured aneurysms

Introduction. The supraorbital approach has been demonstrated to be useful, particularly in minimization of brain retraction and exposure to air, decreases blood loss, surgical trauma, operative time and infection rates. While its shortcomings include difficult control of frontal air sinus, narrower surgical view and limited exposure of sylvian fissure. Patients and methods. We retrospectively reviewed the files of patients who underwent clipping of anterior circulation aneurysms through the supraorbital keyhole approach at Neurosurgery Department, Mansoura University between Jan 2014 and May 2016. Results. Twenty-five consecutive patients harbouring aneurysm at anterior circulation underwent clipping through the supraorbital keyhole approach, sixteen A-com artery aneurysms and nine cases of ICA aneurysms Table 1 show the location of aneurysms. Eleven patients were males, and 14 were females. The ages ranged from 44 to 69 with a mean age of 61.9 years. All patients were presented with subarachnoid haemorrhage due to rupture of aneurysms in anterior circulation The Hunt and Hess grade was (1.50 ± 0.65) and Fisher grade was (1.67 ± 0.45). The average operative time was 3.32 ± 1.14 hours. Follow-up ranged from 1 to 16 months with a mean of 7 months Conclusion. Surgical clipping of some selected aneurysms of anterior circulation can be operated through minimally invasive supraorbital approach which minimize the dissection and retraction of the brain, reduce operative time and blood loss with small incision and good cosmetic results.
Modelo para la Adopción de Cloud Computing en las Pequeñas y Medianas Empresas del Sector Servicios en Medellín, Colombia

espanolSe presenta y analizan para examinar los factores de aceptacion de Computacion en la Nube (Cloud Computing) en las pequenas y medianas empresas del sector servicios en Medellin (Colombia), mediante el Modelo de Aceptacion Tecnologica. La metodologia fue exploratoria descriptiva, ejecutando la investigacion en dos fases, una de revision de literatura, seguida por la aplicacion de entrevistas a cinco individuos pertenecientes a organizaciones del sector servicios. Como resultado, surge un modelo de adopcion de esta tecnologia, delimitado por tres tipos de variables: estrategicas, de competitividad y desempeno; develando la utilidad y facilidad de uso percibida por los individuos frente a la Computacion en la Nube, y por lo tanto la intencion de uso. Aunque la relacion con la Computacion en la Nube esta sujeta al entorno y las experiencias de las pequenas y medianas empresas, el modelo contribuye de manera transversal al desarrollo tecnologico y la innovacion basada en conocimiento. EnglishThe acceptance factors of cloud computing in small and medium-sized companies in the service sector in Medellin (Colombia), through the Technology Acceptance Model are presented and analyzed. The methodology was exploratory and descriptive, executing the research in two steps: a literature review, followed by the application of interviews to five members belonging to organizations of the service sector. As a result, of this emerges a model of adoption of this technology, delimited by three types of variables: strategic, competitiveness and performance, showing to be useful and user friendly. Although the relation with the Cloud Computing depends upon the environment and the experiences of the small and medium-sized companies, the model contributes in different ways to technology development and to knowledge-based innovation.
How Can Small and Medium Enterprises Effectively Implement Corporate Social Responsibility?: An Indian Perspective

The current study is a strategic approach to corporate social responsibility (CSR); the aim is to put forward the factors of CSR activities that enhance its effectiveness for small and medium enterprises (SMEs). To achieve this objective, the factors were extracted from the literature and described along with trusteeship theory of Mahatma Gandhi, and an exploratory study was conducted and data were collected using structured questionnaire based on pretested scale from 158 SMEs and tested using partial least square regression (PLSR). The statistics shows the overall model fit, and the findings indicate a significant relationship with effective CSR. The results of the study are in accordance with the previous research work, and we also find that environment-related CSR and partnership are crucial for the effectiveness of CSR in SMEs, stakeholders’ role are important and SMEs’ CSR practice is still informal. The variables identified from study will help SMEs in establishing a formal approach towards CSR and meeting the needs of business and society in the twenty-first century.
Cicatrisation des amputations de l'avant-pied: valeur prédictive de la pression des orteils

Nous avons etudie retrospectivement les dossiers de 136 malades de sexe masculin devant subir une amputation de l'avant-pied pour apprecier la valeur predictive de la mesure preoperatoire de la pression des orteils (PO) vis-a-vis de la cicatrisation de la tranche d'amputation. Les parametres demographiques pris en compte ont ete l'âge, l'intoxication tabagique, le diabete, l'hypertension arterielle, l'hyperlipidemie et l'insuffisance coronaire. Les parametres cliniques etaient la surinfection, les donnees du Doppler arteriel pre-operatoire, la PO, l'aspect des lesions, l'association a une revascularisation et l'evolution de la plaie. Chez les diabetiques, aucune amputation n'a cicatrise de premiere intention lorsque la PO pre-operatoire etait inferieure a 38 mmHg
GNSS Precise Point Positioning with Android Smartphones and Comparison with High Performance Receivers

Precise Point Positioning (PPP) is becoming increasingly used instead of differential GNSS (DGNSS) due to its ease of use. With PPP, precise satellite orbits and clock corrections are calculated using the numerous International GNSS Service (IGS) permanent stations. The IGS network conceptually replaces the reference station(s) used in DGNSS. Models of the ionosphere and the troposphere are used to aid PPP, especially ionospheric models for single frequency users. In addition to 3D position, PPP provides estimates of GNSS time and zenith tropospheric delays. PPP performance is analysed herein as a function of receiver type, observation time and measurement utilized. The high-end receivers used in this study are multi-frequency multi-constellation Leica GS16. The Android phone used in the new Huawei Mate 20X. The measurements that are intercompared are (1) single frequency code, (2) single frequency code and carrier phase, (3) dual frequency code, and (4) dual frequency code and carrier phase. Results in low and high multipath environments are reported. Focus is on the use of GPS and GLONASS constellations because most IGS stations are equipped with such receivers, which is necessary to calculate precise satellite orbits and clock corrections. In order to assess PPP versus DGNSS performance, the results of a test consisting of an array of receivers are reported and analysed.
Scene Board: Inteligência Artificial & Comunicação Aumentativa e Alternativa para a Educação Inclusiva

Augmentative and Alternative Communication (AAC) is designed to compensate the understanding and communication of individuals with speech impairments through some external resource. One technique that has been gaining prominence for the AAC is learning by scenes. This article presents to the community a study that has raised related works and applications in search of gaps and opportunities to collaborate with the area. The Scene Board tool is presented, which aims to combine Artificial Intelligence resources with AAC in order to maximize learning. The software had its usefulness and usability validated with the application of Technology Acceptance Model (TAM) in three schools with different characteristics. Resumo. A Comunicação Aumentativa e Alternativa (CAA) é voltada para compensar a compreensão e a comunicação de indivíduos com incapacidades de expressão através de algum recurso externo. Uma técnica que vem ganhando destaque para a CAA é a aprendizagem por uso de cenas. Este artigo apresenta para a comunidade um estudo que levantou trabalhos e aplicações relacionados em busca de lacunas e oportunidades para colaborar com a área. É apresentada a ferramenta Scene Board que visa a união de recursos de inteligência artificial com a CAA buscando uma maximização da aprendizagem. O software teve sua utilidade e usabilidade validados com a aplicação do Technology Acceptance Model (TAM) em três escolas com características distintas.