Development and validation of a dynamic material flow analysis model for French copper cycle

This study performs a quantitative description of the copper life cycle at the scale of France from 2000 to 2009 with special focus on waste streams. The approach is based on substance flow analysis and includes data reconciliation. The model takes into account the relationships between economic system, resource consumption, product manufacturing, waste generation and pollution, thus broadening the traditional scope of process systems engineering. The more important results concern waste management since France exports most of its collected copper wastes because there is no industry for recycling low-grade scrap. The paper shows the interest of using substance flow analysis methodology coupled with data reconciliation to obtain a precise cartography of a substance flow inside a large area. Indeed, statistic data from institutional organisms and industries may vary from one source to the other, and the utilization of the redundancy of information is an efficient tool for obtaining more precise data. Moreover, the dynamic analysis allows modelling the stock evolution with more accuracy than in previous studies. Finally, theresults are compared with existing values for other countries or continents, and some perspectives concerning theuse of copper in France are given

Biorefinery sustainability assessment

This article presents a comparative sustainability assessment of three biorefineries that produce liquid fuels used in current infrastructure. The three options considered are biochemical production of ethanol from grain and from cellulosic feedstocks and thermochemical production of Fischer‐Tropsch diesel from biomass‐derived syngas. These biorefineries were compared using numerous environmental, economic, and social metrics, with numerical values derived from a thorough review of recent literature. For each of the three biorefinery options, the metrics were not determined from a specific process design, but from a variety of different designs reported in literature. Where necessary, corn was selected as the feedstock for grain ethanol and switchgrass was selected for cellulosic ethanol and Fischer‐Tropsch diesel. These sustainability metrics were used in an Analytic Hierarchy Process decision analysis to compare the sustainability of the different biorefineries. Thus, a new decision‐making tool has been created in which the user can assign different weights to each category and its metrics. This tool was used to explore the influence of different weights, different market conditions, and uncertainties in the values of the metrics on the relative sustainability of the different options. Based on the results of this assessment, cellulosic ethanol biorefineries are modestly more sustainable than grain ethanol and Fischer‐Tropsch diesel. Grain ethanol was favorable economically whereas Fischer‐Tropsch diesel had the highest score on the societal metrics. © 2010 American Institute of Chemical Engineers Environ Prog, 2010Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/88001/1/10516_ftp.pd

Cardiac abscess, fatal complication in infective endocarditis, clinical case

Universitatea de Stat de Medicină şi Farmacie „Nicolae Testemiţanu”, Chişinău, Republica MoldovaIntroduction. The incidence of infective endocarditis (IE) is 3-10 per 100.000 people/year, the disease causing a high mortality rate (30%) in 1 month. The incidence of cardiac abscesses among patients with IE is between 30-40%, and the aortic valve (AoV), the interventricular septum, and the mitral valve (MV) are the most affected cardiac structures. Case statement. The 82 y.o. man was hospitalized by emergency in the V-th Department of the Institute of Cardiology with complaints: dyspnea during minimal physical activity, fatigue, fever, sweating. Objective data: pallor of the teguments, moderate peripheral edema, decreased basal vesicular murmur, arrhythmic heart sounds, mitral diastolic and aortic systolic murmur, HB - 81 b/min, BP - 100/60 mmHg. Paraclinical: Hb 138 g/l, erythrocytes 4.48 x1012, leukocytes 7.4x109, prothrombin 68%, CRP 48 U/L. EcoCG: EF- 45%. Old vegetations on the aortic valve. Moderate stenosis of AoV, regurgitation of MV III deg., AoV - II deg., TrV - IV deg. Severe pulmonary hypertension. Suspected myocardial abscess in right atrium (RA) and fistula between the right coronary sinus and RA .Chest X-ray: Hydrothorax in the left sinus and subdiaphragmatic. Enlarged transverse diameter of the heart. The treatment with triple antimicrobial and antifungal therapy, cardiac glycosides, anticoagulants and diuretics was initiated and the team discussed the emergency of the surgical treatment. Discussions. In this case, due to the unstable condition of this patient, the doctors decided to postpone the surgical intervention until the additional investigations are made. This led to the significant worsening of the patient's condition and the decompensation of the cardiac pathology. Conclusion. Infective Endocarditis complicated with cardiac abscess requires prompt eradication of the infection by emergency cardiac surgery, to save the patient and minimize the chance of other complications developing. disease causing a high mortality rate (30%) in 1 month. The incidence of cardiac abscesses among patients with IE is between 30-40%, and the aortic valve (Ao V), the interventricular septum, and the mitral valve (MV) are the most affected cardiac struc tures. Case statement. The 82 y.o. man was hospitalized by emergency in the V-th Department of the Institute of Cardiology with complaints: dyspnea durin g minimal physical activity, fatigue, fever, sweating. Objective data: pallor of the teguments, moderate pe ripheral edema, decreased basal vesicular murmur, arrhythmic heart sounds, mitral diastolic and aortic systolic murmur, HB - 81 b/min, BP - 100/60 mmHg. Paraclinical: Hb 138 g/l, erythrocytes 4. 48 x1012, leukocytes 7.4x109, prothrombin 68%, CRP 48 U/L. EcoCG: EF- 45%. Old vegetations on the aortic valve. Moderate stenosis of AoV, regurgitation of MV III deg., AoV - II de g., TrV - IV deg. Severe pulmonary hypertension. Suspected myocardial abscess in right atrium ( RA) and fistula between the right coronary sinus and RA .Chest X-ray: Hydrothorax in the le ft sinus and subdiaphragmatic. Enlarged transverse diameter of the heart. The treatment with triple antimicrobial and antifungal therapy, cardiac glycosides, anticoagulants and diuretics was init iated and the team discussed the emergency of the surgical treatment. Discussions. In this case, due to the unstable condition of this patie nt, the doctors decided to postpone the surgical intervention until the additional investigations are made. This led to the significant worsening of the patient's condition and the deco mpensation of the cardiac pathology. Conclusion. Infective Endocarditis complicated with cardiac abscess requires prompt eradication of the infection by emergency cardiac surgery, to save the patient and minimize the chance of other complications developing

Materiale textile în designul de interior

Resursă electronicăTextilele - elemente integratoare prin intermediul cărora se creează imaginea finală a oricărui interior. Fără o componentă atât de valoroasă ca textilele, nu se poate considera nici un interior complet, indiferent de stil sau direcție în care acesta s-ar încadra. Imaginea uniformă a interiorului este creată cu ajutorul materialelor cu care acesta este decorat. Suprafețele din material textil ne ajută să obținem o anumită atmosferă în camerele în care sunt folosite. Înainte de a cumpăra materialele de care este nevoie e bine să ne apreciem care este starea pe care vrem să ni-o transmită locuința, biroul sau restaurantul pe care-l deținem

Arta decorării vitrinelor

Resursă electronicăÎntr-o lume din ce în ce mai informată toți comercianții știu că este foarte important să prezinte la vitrină obiectele sau produsele care le au în vânzare. O etalare greșită poate aduce prejudicii vânzărilor, iar pentru a capta atenția trecătorilor și a-i invita inconștient în magazin trebuie cunoscută o filozofie întreagă. Arta decorării vitrinelor este una complexă ce implică mai multe aspecte: decorative, funcționale, estetice, informative și de marketing. Forme, lumini, culori, materiale, produse – totul contează în proiectarea, aranjarea și decorarea vitrinelor

Unele reflecții privind dreptul infractorului la împăcare cu partea vătămată [Articol]

La conciliation constitue l’une des causes qui supprime la responsabilité pénale ou les conséquences de la déclaration de culpabilité. Entant qu’institution juridique, la conciliationvise à éteindre le conflit né entre l’auteur de l’infraction et la victime. Le présent article propose une analyse du droit de l’auteur de l’infraction d’être pardonné tant par la victime que par l’État, lequel est tenu de sanctionner toute personne ayant enfreint les valeurs sociales protégées par la loi pénale

Abortion: between moral decision and clinical practice

Department of Philosophy and Bioethics, Nicolae Testemitanu State University of Medicine and Pharmacy, Chisinau, Republic of Moldova, The 8th International Medical Congress for Students and Young Doctors, September 24-26, 2020Introduction. In the present, abortion is a polarizing and divisive issue that raises discussions about ethical and medical problem. Actually, the abortion ethics became more emphasized with the appearance of the question “When does a human life begin?” Despite of different medical achievements and the evolving of ethics, abortion remains a multilateral topic. Aim of the study. The analysis of abortion from a bioethical perspective for facilitating the multilateral approach of the life`s beginning and interruption.Materials and methods. WHO`s guideline about safe abortion, legislative acts of the Republic of Moldova about women`s health protection, statistical year-books, different sources from bioethical, social and ethical areas, own sociological analyzes based on different observations. Results. Over time, the subject of abortion has evaluated in parallel with morality and social traditions strongly connected with different culture forms. Also have appeared various specialized structures in public health system, which deal with the elaboration of the new, more efficient methods of abortion. Thereby now, we have a medical comfort of abortion, feticide being a common practice that is considered a banal, accessible medical procedure. In parallel, the ethical approach of this problem does not have a clear answer, so the discussions on the abortion topic continues in condition of the new technological society. Conclusions. 1. The women`s right to abortion results from their bodily autonomy, considered to be a fundamental human right, but the abortion cannot be a norm in our society, it continues to be an unsolved, difficult ethical problem; 2. Bioethics is looking for optimal ways of avoiding the moral conflicts and gives different logical recommendations that correspond with its principles; so bioethics carries out its main function of protecting the human`s life, in any form of its manifestation; 3. In the present day, it becomes necessary to have an interdisciplinary approach of the abortion problem, with the aid of bioethics

Modelul teoretic de dezvoltare a creativităţii artistice a studenţilor

Theoretical model in pedagogical research primarily has reason to be in a play or a face verbal way, the way to achieve the purpose of research, first component of the model developed by us and applied experimental research is students' creativity

Istorii de succes ale statelor membre ale Uniunii Europene

Odată cu schimbarea regimurilor în Europa Centrală şi de Est, accesul noilor state la Comunitatea Economică Europeană, apoi la Uniunea Europeană, a fost văzută de ele ca o oportunitate de a rezolva două probleme esenţiale: instaurarea sistemului democratic, bazat pe respectarea drepturilor omului şi trecerea de la sistemul comunist de planificare la economia de piaţă. Pe de altă parte extinderea spre Europa Centrală şi de Est era văzuta de însăşi Uniunea Europeană ca o oportunitate istorică. Includerea acestor state ar fi dus la creşterea rolului şi influenţei Uniunii pe arena internaţională

Procesor digital de sunet pe baza microcontrolerului STM32F446RE

În cadrul acestui articol se prezintă un dispozitiv care are posibilitatea de achiziționare a semnalului audio prin intermediul unui convertor analog-digital și procesarea ulterioară a acestuia de microcontroler din familia STM32 prin adăugarea efectului de ecou cu aplicarea semnalului rezultant la ieșirea convertorului digital-analog