Toward reliable hybrid WDM/TDM passive optical networks

Individual users and enterprises are increasingly relying on the access to internet services and cannot accept long interruption time as easily as before. Moreover, the main characteristics of next generation optical access (NGOA) networks, such as long reach and a large number of users per feeder line, turn the network reliability to an important design parameter to offer uninterrupted service delivery. In this regard, protection mechanisms become one of the crucial aspects that need to be considered in the design process of access networks. On the other hand, it should be noted that not all users can afford to pay a high extra cost for protection; hence, it is important to provide resilience in a cost-efficient way. A PON combining WDM and TDM technologies, referred to as hybrid WDM/TDM PON or HPON, is one of the most promising candidates for NGOA networks due to its ability to serve a large number of subscribers and offer high capacity per user. For these reasons, in this article, we propose HPON architecture offering different degrees of resilience depending on the user profiles (i.e., partial and full protection for residential and business access, respectively). Also, the investment cost of providing resilience for the proposed schemes is investigated considering various protection upgrade road maps. Our results confirm that protecting the shared part of network with a large number of users is required in order to keep the failure impact at an acceptable level, with less than 5 percent increase of investment cost compared to the unprotected case. Meanwhile, the proposed end-to-end protection for business users considerably reduces the risk of service interruption for this type of demanding user without a need to duplicate the deployment cost of an unprotected connection. Furthermore, a sensitivity analysis is performed to investigate the impact of changes in business user percentage and protection upgrade time on the deployment cost. The results may be used as advice on cost-efficient deployment of reliable fiber access networks

ClInt: A bilingual Spanish-Catalan spoken corpus of clinical interviews

In this paper we present ClInt (Clinical Interview), a bilingual Spanish-Catalan spoken corpus that contains 15 hours of clinical interviews. It consists of audio files aligned with multiple-level transcriptions comprising orthographic, phonetic and morphological information, as well as linguistic and extralinguistic encoding. This is a previously non-existent resource for these languages and it offers a wide-ranging exploitation potential in a broad variety of disciplines such as Linguistics, Natural Language Processing and related fields

Cri du chat syndrome : a critical review

A new syndrome was identified in 1963, when Lejeune et al. reported a genetic disease resulting from a partial or total deletion on the short arm of chromosome 5 (5p-) and named it the cri du chat syndrome (CdCS). This term makes reference to the main clinical feature of the syndrome, a high-pitched monochromatic cat-like crying, that usually disappears in the first years of life. CdCS is one of the most common chromosomal deletion syndromes in humans, with an incidence of 1:15.000-1:50.000 live-births. Our purpose was to review different aspects of this syndrome (concept, epidemiology, aetiology, clinical features, diagnostic methods and prognosis) emphasizing both: the breakthrough in this field introduced by new cytogenetic and molecular techniques, and the orofacial manifestations most frequently reported. The main orofacial anomalies registered were mandibular microretrognathia, high palate but rarely cleft, variable malocclusion (frequently anterior open-bite), enamel hypoplasia, poor oral hygiene, generalized chronic periodontitis, and retardation of tooth eruption, although there is not enough evidence to support any clear association between these pathologies and the CdCS

Metabolomic Heterogeneity of Pulmonary Arterial Hypertension

published_or_final_versio

Social Impact of Renewable Energy Sources in the Province of Loja

In the future energy development of the planet, renewable energies are decisive, because of the benefits that these entail in their use, besides being inexhaustible; These are used in different ways, in heating in electrical energy, electrochemistry, among others. These energy sources in its implementation have had a social impact by generating jobs, improving the quality of life in remote areas, improving health by reducing pollution; In addition to the levels of knowledge reached not only by professionals but also the population in general. In Ecuador, during the last 10 years, in the introduction of renewable energies, fundamentally hydraulic projects have been worked on. Which four are already in operation, this is how the country has been consolidated, being one of the most energy-rich in the region, in the same way, this has generated sources of work for many people; besides avoiding large pollution to the atmosphere. In the province of Loja, a wind farm, photovoltaic power plants are deployed, and public lighting with photovoltaic systems is used in some sectors of the City. The objective of the work is to demonstrate the social impact that the introduction of these technologies has had in the province of Loja, not only in the social sphere but also cultural, economic, environmental and tourist

La información escrita del farmacéutico mejora el cumplimiento de la antibioterapia

Non-compliance with therapeutic guidelines represents a potential public health risk, given that it contributes to bacterialresistance. One of the strategies used to improve compliance to such guidelines is to provide the patient with betterinformation in written form. The objectives of the present investigation were the following; To evaluate the influencethat written information, provided by the community pharmacist, has on compliance with antibiotic therapy, to verify theconsequences of degree of compliance on patient health, and to discover other factors influencing patient compliance.The experimental study was carried on patients that attend a community pharmacy for antibiotic prescriptions. Membersof the control group were given information in verbal form only, while members of the experimental group were giventhe same information in both verbal and written form. The degree of compliance was determined through telephoneinterviews, carried out the day after having finished treatment. 214 patients completed the study. A 14% increase incompliance among members of the experimental group was achieved. Patients that had completed treatment, had a betterperception of their own health than those that had not. Another factor found to have a significant influence oncompliance was the number of daily dosages.In conclusion, the written information provided by the pharmacist improves therapeutic compliance. Therapeutic complianceimproves patients’ perception of their state of health. The number of daily dosages also have an influence to bear, butcontradict appropriate antibiotic administration policies.El incumplimiento terapéutico es un riesgo potencial para la salud pública al contribuir al incremento de lasresistencias bacterianas. Una de las estrategias utilizadas para mejorar el cumplimiento terapéutico es el de mejorarla información del paciente mediante información escrita. Los objetivos fueron evaluar la influencia de la informaciónescrita del farmacéutico comunitario sobre el cumplimiento antibiótico, verificar sus consecuencias sobre lasalud y descubrir otros factores que influyan en el cumplimiento. Se trata de un estudio experimental en pacientesque acuden a una farmacia comunitaria con una prescripción antibiótica. Al grupo control se le da informaciónverbal sobre su tratamiento, y al grupo de intervención la misma información, pero también por escrito. Se mideel cumplimiento mediante encuesta telefónica al día siguiente de haber tenido que finalizar el tratamiento. 214pacientes finalizaron el estudio. Los pacientes del grupo de intervención incrementaron el cumplimiento terapéuticoen un 14,2%. Los pacientes que cumplen el tratamiento tienen una mejor percepción de salud respecto de losincumplidores. Otro factor que influye significativamente en el cumplimiento es la pauta posológica diaria. Estetrabajo concluye que la información escrita del farmacéutico mejora el cumplimiento terapéutico. El cumplimientoterapéutico mejora la percepción de salud de los pacientes

Thermographic imaging in sports and exercise medicine: A Delphi study and consensus statement on the measurement of human skin temperature

This is an accepted manuscript of an article published by Elsevier in Journal of Thermal Biology on 18/07/2017, available online: https://doi.org/10.1016/j.jtherbio.2017.07.006 The accepted version of the publication may differ from the final published version.© 2017 Elsevier Ltd The importance of using infrared thermography (IRT) to assess skin temperature (tsk) is increasing in clinical settings. Recently, its use has been increasing in sports and exercise medicine; however, no consensus guideline exists to address the methods for collecting data in such situations. The aim of this study was to develop a checklist for the collection of tsk using IRT in sports and exercise medicine. We carried out a Delphi study to set a checklist based on consensus agreement from leading experts in the field. Panelists (n  =  24) representing the areas of sport science (n = 8; 33%), physiology (n = 7; 29%), physiotherapy (n = 3; 13%) and medicine (n = 6; 25%), from 13 different countries completed the Delphi process. An initial list of 16 points was proposed which was rated and commented on by panelists in three rounds of anonymous surveys following a standard Delphi procedure. The panel reached consensus on 15 items which encompassed the participants’ demographic information, camera/room or environment setup and recording/analysis of tsk using IRT. The results of the Delphi produced the checklist entitled “Thermographic Imaging in Sports and Exercise Medicine (TISEM)” which is a proposal to standardize the collection and analysis of tsk data using IRT. It is intended that the TISEM can also be applied to evaluate bias in thermographic studies and to guide practitioners in the use of this technique.Published versio

Relationship Between Osteoporosis and Marginal Bone Loss in Osseointegrated Implants: A 2-Year Retrospective Study

Background: Fitting implants in osteoporotic patients has raditionally been controversial, and there is little scientific evidence relating osteoporosis to marginal bone loss (MBL). The aims of this study are as follows: 1) to evaluate the possibility of a correlation between osteoporosis, as measured by the mandibular cortical index (MCI), and MBL and 2) to assess how various systemic diseases, periodontitis, and placement of implants in regenerated bone are correlated with MBL and MCI. Methods: This retrospective study examines 212 implants inserted in 67 patients. To take a possible cluster failure into account, an implant for each patient was selected (n = 67 implants). MBL was assessed. Osteoporosis was evaluated using the MCI. Both MBL and MCI were assessed from panoramic radiographs. x2 test was performed (Haberman post hoc test). Significance was P <0.05. Results: When the total sample implant (N = 212) was evaluated, a significant association was found between the presence of osteoporosis and MCI (P <0.001) and between the presence of diabetes mellitus and MCI (P <0.01). Significant associations were also found between MBL and placement of implants in regenerated sites (P <0.001) and between MBL and a previous history of periodontitis (P <0.05). When the sample is evaluated only in selected implants (one per patient, n = 67), significant differences appear to relate only to the MBL with the placement of implants in regenerated bone sites (P <0.001). Conclusions: Osteoporosis (as evaluated by MCI) does not pose a risk for the development of greater MBL. Parameters adversely affecting the development of increased MBL are a previous history of periodontitis and especially the placement of implants at sites of bone regeneration