96 research outputs found
A sub-regional outlook of renewable energy potential: the case of Jordan, Syria and Lebanon
This paper addresses the current status and the potentials of renewable energy applications in the selected Middle East countries; Jordan, Syria, and Lebanon. The energy and environmental situations within these primary target areas reflect many similarities and share serious common problems. These include an almost total dependence on imported oil products as the primary energy source, rapidly growing populations that are escalating the demand for energy, and only rudimentary efforts currently underway to mitigate the greenhouse and other adverse environmental effects of energy utilization. Lebanon is highly urbanized compared to Syria and Jordan with much smaller area and has not been fully engaged in pilot projects for use of renewable energy. Applications of solar energy in that region have been growing since 1970. Solar water heating with support of policies in Jordan has achieved measurable market penetration. Lebanon and Syria have not made reasonable progress in solar applications due to subsidized electricity supply to the end user. The technical and economic feasibility of wind energy utilization in Lebanon has not been yet fully explored, while it has advanced with two operating wind farms in Jordan, and one pilot wind farm in Syria. Similarly, the transfer of biomass technology has been successful in Jordan while it remains at the assessment level in Lebanon and Syria coupled with small pilot projects
FITOTERAPIA NO CONTROLE DE PARASITOS GASTRINTESTINAIS DE RUMINANTES: ĂNFASE NO GĂNERO MENTHA E SEUS COMPONENTES BIOATIVOS
Essa revisĂŁo apresenta consideraçÔes acerca da relevĂąncia das infecçÔes de parasitos gastrintestinais (PGI) em ruminantes, abordando a importĂąncia de fĂĄrmacos antiparasitĂĄrios no controle das helmintoses e demais alternativas. Foi realizada uma abordagem conceitual e histĂłrica sobre o controle de PGI e o processo de desenvolvimento da resistĂȘncia parasitĂĄria. Como alternativa da baixa eficĂĄcia de medicamentos, foi feita uma descrição detalhada sobre o uso de Ăłleos essenciais (OE) e de componentes bioativos no controle das PGI em ruminantes. A produção de OE de plantas, passa pela composição quĂmica, tĂ©cnicas de extração dos componentes, mecanismo de ação e ensaios para validação da sua atividade terapĂȘutica, incluindo sua ação anti-helmĂntica. Este artigo traz, na sua segunda parte, uma descrição detalhada de duas espĂ©cies do gĂȘnero Mentha, com foco em sua biologia, composição quĂmica e mecanismos de ação de seus OE. Dentro desse tĂłpico, as espĂ©cies Mentha vilosa e M. piperita sĂŁo as mais estudadas, bem como os seus componentes majoritĂĄrios e bioativos; carvone e limoneno. Ao final do documento, discutimos sobre a tĂ©cnica de cromatografia gasosa e espectrometria de massas, que se faz obrigatĂłria para a identificação de compostos presentes em OE. IncluĂmos ainda, o detalhamento sobre tecnologias de nanoemulsĂŁo e suas vantagens na confecção de formulaçÔes mais estĂĄveis, menos tĂłxicas aos hospedeiros e com potencial de aumentar a eficĂĄcia de fĂĄrmacos contra as PGI, para o desenvolvimento de novos compostos fitoterĂĄpicos ecosustentĂĄveis.This review presents considerations about the relevance of gastrointestinal parasite (GIP) infections in ruminants,
covering also the importance of antiparasitic drugs in the control of helminth infections and some other alternatives.
This document describes a conceptual and historical view of the development of routine GIP control and the process of development of drug resistance. As an alternative to the low efficacy of some products, a detailed description was made of the use of essential oils (EO) and their bioactive compounds in the control of GIP in ruminants. The production of EO from plants, goes through the chemical composition, techniques of extraction of components, mechanism of action and assays for the validation of their activity, including the anthelmintic activity. The present document brings, in its second part, a more detailed description of two species of the genus Mentha, focusing on their biology, chemical composition and the mechanism of action of their EO. Within this topic, the species of Mentha vilosa and M. piperita are better studied, as well as their chemical composition and bioactive components carvone and limonene. At the end, it is discussed the gas chromatography and mass spectrometry techniques that are useful to identify compounds present in EO. It was also included the details about nanoemulsion technologies and their advantages in obtaining a more stable formulation, less toxic to the host, with a great potential to increase anthelmintic efficacy against GIP, for the development of new herbal bioactive and ecofriendly compounds
The Changing Landscape for Stroke\ua0Prevention in AF: Findings From the GLORIA-AF Registry Phase 2
Background GLORIA-AF (Global Registry on Long-Term Oral Antithrombotic Treatment in Patients with Atrial Fibrillation) is a prospective, global registry program describing antithrombotic treatment patterns in patients with newly diagnosed nonvalvular atrial fibrillation at risk of stroke. Phase 2 began when dabigatran, the first non\u2013vitamin K antagonist oral anticoagulant (NOAC), became available. Objectives This study sought to describe phase 2 baseline data and compare these with the pre-NOAC era collected during phase 1. Methods During phase 2, 15,641 consenting patients were enrolled (November 2011 to December 2014); 15,092 were eligible. This pre-specified cross-sectional analysis describes eligible patients\u2019 baseline characteristics. Atrial fibrillation disease characteristics, medical outcomes, and concomitant diseases and medications were collected. Data were analyzed using descriptive statistics. Results Of the total patients, 45.5% were female; median age was 71 (interquartile range: 64, 78) years. Patients were from Europe (47.1%), North America (22.5%), Asia (20.3%), Latin America (6.0%), and the Middle East/Africa (4.0%). Most had high stroke risk (CHA2DS2-VASc [Congestive heart failure, Hypertension, Age 6575 years, Diabetes mellitus, previous Stroke, Vascular disease, Age 65 to 74 years, Sex category] score 652; 86.1%); 13.9% had moderate risk (CHA2DS2-VASc = 1). Overall, 79.9% received oral anticoagulants, of whom 47.6% received NOAC and 32.3% vitamin K antagonists (VKA); 12.1% received antiplatelet agents; 7.8% received no antithrombotic treatment. For comparison, the proportion of phase 1 patients (of N = 1,063 all eligible) prescribed VKA was 32.8%, acetylsalicylic acid 41.7%, and no therapy 20.2%. In Europe in phase 2, treatment with NOAC was more common than VKA (52.3% and 37.8%, respectively); 6.0% of patients received antiplatelet treatment; and 3.8% received no antithrombotic treatment. In North America, 52.1%, 26.2%, and 14.0% of patients received NOAC, VKA, and antiplatelet drugs, respectively; 7.5% received no antithrombotic treatment. NOAC use was less common in Asia (27.7%), where 27.5% of patients received VKA, 25.0% antiplatelet drugs, and 19.8% no antithrombotic treatment. Conclusions The baseline data from GLORIA-AF phase 2 demonstrate that in newly diagnosed nonvalvular atrial fibrillation patients, NOAC have been highly adopted into practice, becoming more frequently prescribed than VKA in Europe and North America. Worldwide, however, a large proportion of patients remain undertreated, particularly in Asia and North America. (Global Registry on Long-Term Oral Antithrombotic Treatment in Patients With Atrial Fibrillation [GLORIA-AF]; NCT01468701
Undiagnosed Phenylketonuria Can Exist Everywhere: Results From an International Survey
peer reviewedMany countries do not have a newborn screening (NBS) program, and immigrants from such countries are at risk for late diagnosis of phenylketonuria (PKU). In this international survey, 52 of 259 patients (20%) with late diagnosed PKU were immigrants, and 145 of the 259 (55%) were born before NBS or in a location without NBS. © 2021 The Author
International Consensus Statement on Rhinology and Allergy: Rhinosinusitis
Background: The 5 years since the publication of the first International Consensus Statement on Allergy and Rhinology: Rhinosinusitis (ICARâRS) has witnessed foundational progress in our understanding and treatment of rhinologic disease. These advances are reflected within the more than 40 new topics covered within the ICARâRSâ2021 as well as updates to the original 140 topics. This executive summary consolidates the evidenceâbased findings of the document. Methods: ICARâRS presents over 180 topics in the forms of evidenceâbased reviews with recommendations (EBRRs), evidenceâbased reviews, and literature reviews. The highest grade structured recommendations of the EBRR sections are summarized in this executive summary. Results: ICARâRSâ2021 covers 22 topics regarding the medical management of RS, which are grade A/B and are presented in the executive summary. Additionally, 4 topics regarding the surgical management of RS are grade A/B and are presented in the executive summary. Finally, a comprehensive evidenceâbased management algorithm is provided. Conclusion: This ICARâRSâ2021 executive summary provides a compilation of the evidenceâbased recommendations for medical and surgical treatment of the most common forms of RS
Renewable-energy developments in Arab countries: a regional perspective
This paper details the status of renewable-energy (RE) developments in Arab countries (AC) as an essential element for the sustainable economic development of these countries, despite their wealth in oil and gas. The paper first presents a review of the RE resources in AC and sheds light on some achieved and/or ongoing RE projects in the region. It also examines the adequacy of the present national institutions responsible for RE developments, and evaluates the effectiveness of work programmes of major regional and international organizations supporting RE activities. Finally, the paper identifies major obstacles hindering the large-scale penetration of RE into the energy markets of AC, and draws conclusions for increasing RE contribution to those markets.Renewable energy Energy planning and policy
Baseline energy and electricity consumptions in Lebanon and opportunities for conservation
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