Reuse or recycle? Recovery options for end-of-use mobile phones in Spain

The main objective of this paper is to analyze the most important recovery options for end-of-use mobile phones in Spain. We start with a description of the reverse logistics system for mobile phones in Spain. The two main alternatives for this end-of-use e-waste are: reuse and recycling. The study includes the characterization of the different actors involved in the reverse logistics system (collectors, third-party take-back enterprises, sorting facilities, recyclers...) and a description of the most common logistics practices in the sector. We will also analyze the implications of different recovery options for end-of-use mobile phones. Currently the percentage of mobile phones reused is rather larger than those recycled. Special attention has to be paid to the resale channel on secondary markets. We conclude that we need to regulate this second-hand mobile phone market. Finally, we propose an alternative logistic model for improving this closed-loop supply chain: an integrated model for recovering mobile phones (which includes both options) that allows achieving economies of scale

A location model proposal for collecting used portable batteries in Spain

The main objective of this paper is to propose a model for helping logistics managers to choose the appropriate location points in order to situate the collection points for used portable batteries. The proposed model has two parts: a static part and a dynamic part. We can conclude that this model helps managers in the decision of locating/modifying collection points in two ways: to add new collection points to a reverse logistics network that needs more points or to delete collection points from a network that has more points than those recommended

Reverse logistics practices for recovering mobile phones in Spain

The main objective of this paper is to characterize the reverse logistics system for mobile phones in Spain. The study includes the characterization of the different actors involved in the reverse logistics system and the description of the most common logistics practices in the sector. We will also propose alternative practices for managing this complex reverse logistics system and finally, we will analyse the challenges of the current reverse logistics model. Some alternatives for the current model are: location of reception points for end-of-use mobiles, the need to legislate the second-hand mobile phone market and the location of the necessary recycling centres according to current legislation

Levels of DKK1 in patients with acute myocardial infarction and response to atorvastatin

Producción CientíficaThe atherosclerosis that appears in coronary, cerebrovascular and peripheral arterial disease is responsible for most cardiovascular diseases. It is characterized by chronic arterial inflammation caused and exacerbated by disorders of the lipidic metabolism and other clearly identified risk factors [1]. Calcification, which is initiated by an active process in which inflammatory cytokines and other mediators that regulate the phospho-calcium metabolism intervene, is characteristic of atherosclerosis [2]. These mechanisms can intervene in an opposite phenomenon that takes place at the level of the bone characterized by a reduction in bone mineral content and alterations in the microarchitecture that define osteoporosis. The association between the two diseases, which share mechanisms but have a different expression, is noteworthy

Educafarma 10.0

Memoria ID-030. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2021-2022

Memoria del proyecto: e-MATE

Memoria ID-059. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2010-2011.El proyecto e-MATE (Enseñanza de las Matemática en red) se ha llevado a cabo como un proyecto global del Departamento de Matemática Aplicada con el objetivo fundamental de dar respuesta a los retos que la enseñanza de las Matemáticas tiene en nuestra Universidad, dado el gran número y variedad de titulaciones en las que el profesorado de nuestro Departamento ejerce su labor docente

Bachillerato a distancia 1 : guía del alumno

Contiene: Guía del alumno I y Guía del alumno IITras una explicación de los elementos y características que constituyen los estudios de educación a distancia en general, se presenta el programa de estudios para el bachillerato a distancia en cuanto a materias comunes y optativas, y a las materias de la modalidad de bachillerato de ciencias de la naturaleza y de la salud, bachillerato de tecnología, y bachillerato de humanidades y ciencias sociales. Incluye un primer anexo con una selección de libros de texo y otro segundo sobre los estudios vinculados a las modalidades y opciones del bachillerato.MadridBiblioteca de Educación del Ministerio de Educación, Cultura y Deporte; Calle San Agustín 5 -3 Planta; 28014 Madrid; Tel. +34917748000; [email protected]

Demographic, clinical, and functional determinants of antithrombotic treatment in patients with nonvalvular atrial fibrillation

Altres ajuts: Alliance Bristol-Myers Squibb/Pfizer.Background: This study assessed the sociodemographic, functional, and clinical determinants of antithrombotic treatment in patients with nonvalvular atrial fibrillation (NVAF) attended in the internal medicine setting. Methods: A multicenter, cross-sectional study was conducted in NVAF patients who attended internal medicine departments for either a routine visit (outpatients) or hospitalization (inpatients). Results: A total of 961 patients were evaluated. Their antithrombotic management included: no treatment (4.7%), vitamin K antagonists (VKAs) (59.6%), direct oral anticoagulants (DOACs) (21.6%), antiplatelets (6.6%), and antiplatelets plus anticoagulants (7.5%). Permanent NVAF and congestive heart failure were associated with preferential use of oral anticoagulation over antiplatelets, while intermediate-to high-mortality risk according to the PROFUND index was associated with a higher likelihood of using antiplatelet therapy instead of oral anticoagulation. Longer disease duration and institutionalization were identified as determinants of VKA use over DOACs. Female gender, higher education, and having suffered a stroke determined a preferential use of DOACs. Conclusions: This real-world study showed that most elderly NVAF patients received oral anticoagulation, mainly VKAs, while DOACs remained underused. Antiplatelets were still offered to a proportion of patients. Longer duration of NVAF and institutionalization were identified as determinants of VKA use over DOACs. A poor prognosis according to the PROFUND index was identified as a factor preventing the use of oral anticoagulation