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EUROPE 1992 AND THE LIBERALIZATION OF DIRECT INVESTMENT FLOWS : SERVICES VERSUS MANUFATURING
RIVERA-BATIZ, FRANCISCO L.,RIVERA-BATIZ, LUIS A. 한국국제경제학회 1992 International Economic Journal Vol.6 No.1
The European intergration of 1992 offers to open-up the service sector of EC countries to substantial investment flows from other member nations. This paper studies how the elimination of restrictions ofn the flow of foreign capital into services affects the economic welfare of a recipient economy. A model of increasing returns due to specialization is developed in which capital is sector-specific; this model is used to examine the diffential impact of foreign capital inflows into the service and manufacturing sectors. It is shown that direct foreign investment in the service sector has positive effects on national welfare that investment in manufacturing may lack.
From Arithmetic to Algebra: Smoothing the Transition
( Rivera Torres ),( Adrian Andres ) 한국수학교육학회 2014 수학교육 학술지 Vol.2014 No.1
Education in Arithmetic and Geometry is strong because those topics are considered “second nature”, so they are easily associated to real-life problems and the intuition behind their properties is easier to teach. Education in Algebra suffers because it lacks that, so the idea of this presentation is to turn it into “second nature” as well. By combining arithmetic and geometry with topics such as proportionality and the basics of modeling, it will not only improve problem-solving skills among students, but will lead to a better education in Algebra and the many topics that depend on it.
Tunneling the size of iron oxide NPs using different alcohols and proportions water-alcohol
Rivera, F.L.,Sanchez-Marcos, J.,Menendez, N.,Herrasti, P.,Mazario, E. Techno-Press 2020 Advances in nano research Vol.8 No.2
In this work the properties of iron oxide magnetic nanoparticles (MNPs) synthesized by electrochemical method using different water-alcohol proportions and alcohols have been investigated. The syntheses were carried out using 99% iron foils acting electrodes in a 0.04 M NaCl solutions at room temperature applying 22 mAcm<sup>-2</sup> on the working electrode, mostly obtaining magnetite nanoparticles. The impact of the electrolyte in the size of the synthesized MNPs has been evaluated by transmission electron microscopy (TEM), X-ray diffraction (XRD), chronopotentiometric studies, and magnetic characterization. The results have shown that nanoparticles can be obtained in the range of 6 to 26 nm depending on the type of alcohol and the proportions in the mixture of water-alcohol. The same trend has been observed for all alcohols. As the proportion of these in the medium increases, the nanoparticles obtained are smaller in size. This trend is maintained until a certain proportion of alcohol: 50% for methanol, and 60% for the rest of alcohols, proportions where obtaining a single phase of magnetite is not favored.
Fake Peer Review and Inappropriate Authorship Are Real Evils
Horacio Rivera 대한의학회 2019 Journal of Korean medical science Vol.34 No.2
Inappropriate authorship and other fraudulent publication strategies are pervasive. Here, I deal with contribution disclosures, authorship disputes versus plagiarism among collaborators, kin co-authorship, gender bias, authorship trade, and fake peer review (FPR). In contrast to underserved authorship and other ubiquitous malpractices, authorship trade and FPR appear to concentrate in some Asian countries that exhibit a mixed academic patter of rapid growth and poor ethics. It seems that strong pressures to publish coupled with the incessantly growing number of publications entail a lower quality of published science in part attributable to a poor, compromised or even absent (in predatory journals) peer review. In this regard, the commitment of Publons to strengthen this fundamental process and ultimately ensure the quality and integrity of the published articles is laudable. Because the many recommendations for adherence to authorship guidelines and rules of honest and transparent research reporting have been rather ineffective, strong deterrents should be established to end manipulated peer review, undeserved authorship, and related fakeries.
RocioU.Rivera-Campos,RafaelRiosmena-Rodriguez 한국조류학회I 2003 ALGAE Vol.18 No.1
Temporal variation in size class along with temporal and spatial variations in reproductive fronds of Amphiroa vanbosseae Lemoine were studied in a shallow population in the southwestern Gulf of California. Thalli were collected monthly from a dense population (3-5 thalli m–2 at 2-3 m depth) at El Sargento, BCS, México. Two size-class groups were dominant (50-59 and 60-69 mm) over eight months suggesting very little variation in plant height was present among months. However, when the data were grouped seasonally, the size-class structure showed a trend of bigger plants in spring, suggesting recruitment and mortality were similar over the year with small windows of variation. Temporally, the plants were reproductive all year with a higher proportion of reproductive plants in summer. Spatially, only mature conceptacles were observed in the apical and middle area of the thalli, while in the basal area the plant never became reproductive. However, our observations showed that this population was dominated by bi-tetrasporophyte. Amphiroa vanbosseae appears to grow and reproduce all year, but with a maximum in reproduction during summer when other seaweed species disappear due to environmental stress.
Challenges in the Use of Targeted Therapies in Non–Small Cell Lung Cancer
Joel Rivera-Concepcion,Dipesh Uprety,Alex A. Adjei 대한암학회 2022 Cancer Research and Treatment Vol.54 No.2
Precision oncology has fundamentally changed how we diagnose and treat cancer. In recent years, there has been a significant change in the management of patients with oncogene-addicted advanced-stage non–small cell lung cancer (NSCLC). Increasing amounts of identifiable oncogene drivers have led to the development of molecularly targeted drugs. Undoubtedly, the future of thoracic oncology is shifting toward increased molecular testing and the use of targeted therapies. For the most part, these novel drugs have proven to be safe and effective. As with all great innovations, targeted therapies pose unique challenges. Drug toxicities, resistance, access, and costs are some of the expected obstacles that will need to be addressed. This review highlights some of the major challenges in the use of targeted therapies in NSCLC and provides guidance for the future strategies. Precision oncology has fundamentally changed how we diagnose and treat cancer. In recent years, there has been a significant change in the management of patients with oncogene-addicted advanced-stage NSCLC. Increasing amounts of identifiable oncogene drivers have led to the development of molecularly targeted drugs. Undoubtedly, the future of thoracic oncology is shifting toward increased molecular testing and the use of targeted therapies. For the most part, these novel drugs have proven to be safe and effective. As with all great innovations, targeted therapies pose unique challenges. Drug toxicities, resistance, access, and costs are some of the expected obstacles that will need to be addressed. This review highlights some of the major challenges in the use of targeted therapies in NSCLC and provides guidance for the future strategies.