252 research outputs found
Elemental sulphur and chicken manure for the control of branched broomrape (Orobanche ramosa)
No full textField and greenhouse studies were conducted in Lebanon to investigate the effect of elementary sulphur (0, 1, 4, 8, and 12 t-ha) with or without chicken manure (20 t-ha) on Orobanche ramosa growth and development in eggplant and potato. Sulphur alone was ineffective in reducing Orobanche growth and infestation or increasing the yield of either eggplant or potato. For both crops, chicken manure alone or with sulphur at all tested rates was effective in reducing Orobanche growth and infestation early in the season in comparison with the control. Unlike potato, the mixtures of chicken manure and sulphur at 8 and 12 t-ha significantly reduced Orobanche infestation later in the season (75 and 90 days after transplanting) in eggplant. However, the mixtures of chicken manure and sulphur at all tested rates significantly reduced the dry weight of Orobanche and increased eggplant and potato yield compared with the control.ABUIRMAILEH BE, 1981, WEED SCI, V29, P8; ABUIRMAILEH BE, 1994, WEED SCI, V42, P57; ADRIANO D C, 1973, Journal of Environmental Quality, V2, P396; BALLARD LAT, 1985, AUST J BIOL SCI, V11, P246; BUCHANAN GA, 1975, WEED SCI, V23, P473; CHEN Y, 1980, SOIL SCI, V130, P271, DOI 10.1097-00010694-198011000-00007; Conn KL, 1999, CAN J PLANT PATHOL, V21, P81; DEVAY JE, 1991, FAO PLANT P, V109, P79; ELZEIN A, 2003, WEED MANAGEMENT DEV, P109; HAIDAR MA, 1995, ARAB NEAR E PLANT PR; Haidar MA, 2000, CROP PROT, V19, P169, DOI 10.1016-S0261-2194(99)00083-6; HUANG H-C, 1991, Plant Protection Bulletin (Taichung), V33, P283; JAIN R, 1992, WEED TECHNOL, V6, P269; KASSASIAN L, 1973, PANS, V19, P368; MILLER WP, 1985, SOIL SCI SOC AM J, V49, P856; Pare T, 1997, BIOL AGRIC HORTIC, V14, P1; Parker C, 1993, PARASITIC WEEDS WORL; PENALOSA JM, 1994, J PLANT NUTR, V17, P147, DOI 10.1080-01904169409364715; SIMPSON K, 1986, FERTILIZERS MANURES; SMITH ORA, 1940, AMER POTATO JOUR, V17, P27, DOI 10.1007-BF02879239; vanHezewijk MJ, 1996, WEED RES, V36, P395; Westwood JH, 1999, WEED SCI, V47, P2; ZAKARIA MA, 1980, PHYTOPATHOLOGY, V70, P495, DOI 10.1094-Phyto-70-495; ZOLLINGER RK, 1991, WEED SCI, V39, P376; ZUCCONI F, 1981, BIOCYCLE, V22, P5433
A Techno-Economic Analysis of the Electric Vehicle Transition: politique, infrastructure, usages et conception
No full textSince road transport accounts for a high share of global Greenhouse Gas (GHG) emissions, Electric Vehicles (EVs), including Battery EVs (BEVs) and Plug-in Hybrid EVs (PHEVs), offer a promising alternative to replace fossil-fuel dependent Internal Combustion Engine Vehicles (ICEVs), with a low-or zero-emission transport solution. While this technology's adoption has been rapidly increasing over the last decade, its market share remains restrained by socio-techno-economic barriers in most countries. Overcoming these barriers is an essential step into a massive purchasing activity of electric vehicles. This dissertation aims at investigating innovative business models by examining the transactions within the members of the EV ecosystem. This dissertation deals with future and multidisciplinary research in economics, management, and engineering sciences on decarbonised car systems' future. First, this thesis addresses the main charging infrastructure deployment barrier by presenting a literature review about the deployment methodologies and pointing out the neglected set of parameters that present our research gaps. Second, it investigates the trade-offs between the different-power charging infrastructure and the BEV owner by considering: BEV investment and range, public infrastructure availability, at-home charger availability, and the adaptability between charger and BEV in terms of technical constraints. It also concludes with the most suitable BEV battery capacity for urban and rural needs, and the installation of fast chargers. Next, it analyses the influence of socio-demographic, economic, and technical factors on electric vehicle adoption in French departments, using mixed-effects regression. This chapter points out policy recommendations to accelerate the electric mobility transition. Finally, this thesis analyses the influence of the Regulation number (EU)2019/631 on the automotive manufacturers’ portfolio, and compares the results with the directive of the European Commission.Le transport routier représentant une part importante des émissions mondiales de gaz à effet de serre. Les véhicules électriques (VE), y compris les VE à batterie (BEV) et les VE hybrides rechargeables (PHEV), offrent une alternative prometteuse pour remplacer les véhicules à moteur à combustion interne (ICEV), dépendants des combustibles fossiles, pour une solution de transport à émissions faibles ou nulles. Bien que l'adoption de ces technologies ait rapidement augmenté au cours de la dernière décennie, leur part de marché reste limitée par des obstacles socio-technico-économiques dans la plupart des pays. Surmonter ces barrières est une étape essentielle vers un marché massive des véhicules électriques. Cette thèse vise donc à étudier des modèles économiques innovants, en examinant les transactions entre les membres de l'écosystème des VE. Cette thèse traite de recherches prospectives et multidisciplinaires en sciences économiques et de gestion, et sciences de l'ingénieur, sur l'avenir des systèmes automobiles décarbonés. Tout d'abord, cette thèse aborde les principaux obstacles au déploiement des infrastructures de recharge, en présentant une revue de la littérature sur les méthodologies de déploiement et en soulignant l'ensemble des paramètres négligés dans la littérature, lesquels présentent des questions de recherche que la thèse aborde par la suite. Ensuite, cette thèse étudie les compromis entre infrastructure de recharge de différentes puissances et autonomie des BEV. Nous concluons sur la capacité de la batterie du BEV la plus adaptée aux besoins urbains et ruraux, et sur l'investissement dans les chargeurs rapides. De plus, cette thèse analyse l'influence des facteurs socio-démographiques, économiques et techniques sur l'adoption des VE dans les départements français au moyen d’une régression à effets mixtes. Nous concluons à travers des recommandations de politiques économiques pour accélérer la transition vers la mobilité électrique. Enfin, cette thèse analyse l'influence du règlement européen (EU)2019/631 sur l’offre des constructeurs automobiles et permet de discuter les résultats attendus par la directive de la Commission européenne
Animated Map Timeline, Syria
No full textOnce the file is unzipped, launch animapssyria.html in an internet browser window.Cartographic evidence can often be used to find pattern in large sets of data that are widely scattered in time and space. Thus, when co-author Haidar considered spreadsheets with many thousands of entries, it seemed useful to map the data in her quest to look for pattern in incidence of the disease, Leishmaniasis, in Syria. She wished to view the data by Syrian province over a period of eight years, on a monthly basis. In that way she hoped to be able to see, at a glance, variation in incidence from north to south in a seasonal framework. The animated map offered one approach to that task.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/58346/1/Syria.zi
Professional satisfaction among Saudi dental students
No full textA study was carried out at King Saud University Dental School to assess professional satisfaction between senior dental students and interns. A questionnaire was distributed to all 4th, 5th year students and interns (males and females). One hundred sixty (160) or 73% of the two hundred nineteen (219) who received the questionnaires responded.
The results showed that although 15% of those investigated were dissatisfied with the dental profession, over 94% of all those included in the study would like to continue their postgraduate education in the profession. There were no statistical differences between the opinions of male and female respondents. Cross tabulation of job satisfaction and taking the right decision in attending dental school, dentistry being the first choice and advising a friend to take dentistry, were significant.Corresponding Author:
Dr. Zohair Haidar, College of Dentistry, King Saud University, PO Box 60169, Riyadh 11545,
Kingdom of Saudi Arabia
The multidimensional configuration of platform work: A mixed-methods analysis of the Argentinian case
No full textThe aim of this article is to make a contribution to understanding platform work in a comprehensive and geographically situated way, and thus to consider comprehensive responses to its precarising character. The author proposes an analytical framework in which platform work is the result of the articulation of three dimensions: technological-organisational, institutional and ideological. In turn, this framework is applied in depth to a case study: delivery platform work in Argentina. To that end a mixed methodology is employed which combines in-depth interviews and surveys responded to by 401 delivery workers.Fil: Haidar, Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Centro de Innovación de los Trabajadores. Universidad Metropolitana para la Educación y el Trabajo. Centro de Innovación de los Trabajadores; Argentin
Selective control of Orobanche ramosa in potato with rimsulfuron and sub-lethal doses of glyphosate
No full textPrevious studies indicated that foliar applications of rimsulfuron were effective in controlling Orobanche ramosa but phytotoxic to potato plants, while sub-lethal doses of glyphosate slightly reduced Orobanche infestation but were selective in potato. In this study, a single foliar application of rimsulfuron at 12.5 g ai-ha followed by single and sequential foliar applications [20, 35, 50 days after potato emergence (DAPE)] of sub-lethal doses of glyphosate (100, 200 and 300 g ai-ha) were used. All doses except the single application of rimsulfuron followed by sequential applications of glyphosate at 200 and 300 g ai-ha had no negative effect on potato growth and marketable yield, but had variable effects on Orobanche infestation. All doses significantly reduced Orobanche shoot number 75 and 90 DAPE, while triple application of glyphosate following rimsulfuron was the most effective in reducing Orobanche shoot number after 110 DAPE and dry weight compared to the control. The best results considering both Orobanche control and selectivity in potato was obtained by application of rimsulfuron at 12.5 g ai-ha followed by sequential foliar application (three times) of glyphosate at 100 g ai-ha. © 2005 Elsevier Ltd. All rights reserved.Arjona-Berral A., 1984, Proceedings of the 3rd symposium on weed problems in the Mediterranean area, Oeiras, Portugal, 3-5 April, 1984, Volume 1, P293; CASTEJONMUNOZ M, 1990, CROP PROT, V9, P332, DOI 10.1016-0261-2194(90)90002-O; ELZEIN A, 2003, WEED MANAGEMENT DEV, P109; MESAGARCIA J, 1985, WEED RES, V25, P129, DOI 10.1111-j.1365-3180.1985.tb00627.x; Goldwasser Y, 2001, CROP PROT, V20, P403, DOI 10.1016-S0261-2194(00)00162-9; Haidar MA, 2005, CROP PROT, V24, P7, DOI 10.1016-j.cropro.2004.06.007; HAIDAR MA, 1995, COMMON WEEDS LEBANON; Hershenhorn J, 1998, WEED TECHNOL, V12, P108; JACOBSOHN R, 1986, P WORKSH BIOL CONTR, P172; KASASIAN L, 1973, PANS (PEST ARTIC NEWS SUMM), V19, P368; KOTOULASYKA E, 1990, WEED RES, V31, P19; Nandula VK, 1999, WEED SCI, V47, P486; Parker C, 1993, PARASITIC WEEDS WORL; Schmitt U., 1979, B FITOSANITARIO FAO, V29, P8844
Character Education in Novels “Dahlan” by Haidar Musyafa: Religious Value and Curiosity Value
No full textCharacter education is undoubtedly found in many things. They are included in the family and language. Individuals can understand character education by looking at current conditions that shape personalities. Character education can also be found in literary works. In this study, researchers focused only on two character education values, namely religious values and curiosity values in the novel Dahlan by Haidar Musyafa. The research aims to reveal the spiritual and curiosity values of the Darwis character that represent daily behaviors with the quotations obtained. The research approach used by the researcher is literary psychology. The literary psychology approach is a scholarly work created by the author related to the character's character, the character's psychology, and the emotions he writes about. The data collection technique in this study uses heuristics and hermeneutics. It can be concluded that Dahlan's novel by Haidar Musyafa contains positive things that can shape good characters for readers. Character education values include religion and curiosity. The results of the research show and represent that humans always obey their beliefs so that they are always grateful for all the certainties that God gives. The results show and represent humans to always obey their beliefs to be continually thankful for all the certainties God gives. Then, the value of character education in the form of the value of curiosity seeks to reveal the unknown with the meaning of language
Evaluation of Weed Management Practices for Rain‐Fed Safflower Production in a Semiarid Mediterranean Environment
No full textSince safflower (Carthamus tinctorius L.) has slow early growth, effective early weed control is essential. The objective of this study was to investigate the effectiveness of various nonchemical and chemical practices for weed management in rain-fed safflower. Field experiments were performed for three production years in the Bekaa Valley of Lebanon. Six weed management practices were tested: delayed sowing, delayed sowing with interrow cultivation, normal sowing with interrow cultivation, preermergence herbicide, hand weeding, and the normal sowing weedy check. Averaged over 1999-2000 and 2000-2001, weeds were absent with herbicide application and there were as few as andlt;4 weed plants m-2 in delayed sowing with interrow cultivation and hand weeding. Interrow cultivation under normal sowing, herbicide application, and hand weeding gave higher safflower seed and straw yields than the weedy check. Over the three production years, only interrow cultivation under normal sowing and hand weeding produced higher safflower seed and straw yields than the weedy check. In conclusion, interrow cultivation under normal sowing could be considered the best practice; application of pendimethalin and pronamide was also superior to delay sowing. Copyright © 2008 by the American Society of Agronomy. All rights reserved.BEG A, 1993, STATUS POTENTIAL SOM; HAIDAR MA, 2000, 7 AR C PLANT PROT 22, P31; KAFTKA SR, 1998, PUBL U CALIFORNIA; Knowles P. F., 1976, Evolution of crop plants., P31; MCINTOSH MS, 1983, AGRON J, V75, P153; MONTEMURRO P, 1997, SAFFLOWER MULTIPURPO, P132; Mundel HH, 1992, SAFFLOWER PRODUCTION, P35; RYAN J, 1980, PUBL AM U BEIRUT, V64; SALERA E, 1997, SAFFLOWER MULTIPURPO, P136; Yau SK, 2007, EUR J AGRON, V26, P249, DOI 10.1016-j.eja.2006.10.004; Yau SK, 2004, EXP AGR, V40, P453, DOI 10.1017-S0014479704002121; Yau SK, 2003, AGRON J, V95, P821; Yau S.K., 1999, SESAME SAFFLOWER NEW, V14, P9722
Survival of weed seeds subjected to sheep rumen digestion
No full textAn experiment was conducted to examine the effect of sheep rumen digestion on the viability of the seeds of eight weed and two crop species common in Lebanon. Seed samples were put in small monofilament polyester bags and placed in the rumen of fistulated sheep for 1, 2, 3 and 4 days. The viability of the seeds 4 days after placement in the rumen was 85percent for Cuscuta campestris, 76percent for Amaranthus retroflexus, 31percent for Convolvulus arvensis, 17percent for Chenopodium album, 10percent for Eleusine indica, and 1.3percent for Setaria viridis, compared with the control. Seeds of Lolium multiflorum and Raphanus raphanistrum died 2 days after placement in the rumen, while seeds of Lens culinaris and Hordeum vulgare, which were tested for comparison, died 1 day after placement in the rumen. The seeds most tolerant to incubation were Cuscuta campestris and Amaranthus retroflexus, followed by Convolvulus arvensis, Chenopodium album and Eleusine indica. The results indicate that sheep could be an important vector for dispersing viable weed seeds, particularly hard-coated seeds. Thus, sheep should be kept in pens for about 4 days before being released into new fields, to reduce the risk of weed infestation and spread. © 2010 The Authors. Weed Research © 2010 European Weed Research Society.BALLARD L. A. T., 1958, AUSTRALIAN JOUR BIOL SCI, V11, P246; BUHLER DD, 1999, ANDERSENS GUIDE PRAC, P248; Curtis K. M. S., 1990, Proceedings of the Australian Society of Animal Production, V18, P180; DASTGHEIB F, 1989, WEED RES, V29, P113, DOI 10.1111-j.1365-3180.1989.tb00848.x; EDGECOMBE W S, 1970, P457; ESTELL RE, 1986, J ANIM SCI, V60, P1061; GARDENER CJ, 1993, J APPL ECOL, V30, P63, DOI 10.2307-2404271; HAIDAR MA, 1995, ARAB NEAR E PLANT PR, P34; Haidar MA, 1997, WEED RES, V37, P219, DOI 10.1046-j.1365-3180.1997.d01-36.x; HEADY HAROLD F., 1954, JOUR RANGE MANAGEMENT, V7, P259, DOI 10.2307-3893928; HENDRICKS SB, 1976, PLANT PHYSIOL, V58, P7, DOI 10.1104-pp.58.1.7; Kneuper CL, 2003, J RANGE MANAGE, V56, P255, DOI 10.2307-4003815; LACY JR, 1992, WEED TECHNOL, V6, P599; Landau S, 2006, LIVEST SCI, V105, P265, DOI 10.1016-j.livsci.2006.05.024; Manzano P, 2005, SEED SCI RES, V15, P21, DOI 10.1079-SSR2004192; Michael PJ, 2006, AUST J EXP AGR, V46, P1251, DOI 10.1071-EA05285; Olson BE, 2002, J RANGE MANAGE, V55, P65, DOI 10.2307-4003264; Olson BE, 1997, J RANGE MANAGE, V50, P10, DOI 10.2307-4002698; PIGGIN CM, 1978, WEED RES, V18, P155, DOI 10.1111-j.1365-3180.1978.tb01152.x; Schoenbaum I, 2009, CROP PASTURE SCI, V60, P675, DOI 10.1071-CP08283; SIMAO NM, 1987, AUSTR J EXPT AGR, V27, P247, DOI 10.1071-EA9870247; Stanton R, 2003, AUST J EXP AGR, V43, P535, DOI 10.1071-EA02046; Stanton R, 2002, AUST J EXP AGR, V42, P111, DOI 10.1071-EA01069; WALLANDER RT, 1995, J RANGE MANAGE, V48, P145, DOI 10.2307-400280223
Assessing the trade-offs between battery capacity and charging power of battery electric vehicles: A French case study
No full textInternational audienceBattery Electric Vehicles (BEVs) are generally considered a promising solution for reducing greenhouse-gas emissions. Despite increasing sales, techno-economic barriers still hinder their widespread adoption. Market stakeholders are faced with a dilemma to address these barriers, especially in terms of choices that have to be made about car battery capacity and recharging infrastructure investments. While previously considered separately, these choices are not independent and influence car price, recharging speed, and ecological impact. This paper explores various combinations of battery capacity sizes and charging power to define and compare these options. We simulate the needs of 12 scenarios of identical privately-purchased BEVs, by increasing their battery capacity, analyse the owner's and charging operator's cost models before exploring Pareto fronts to conclude with optimal combinations of battery size and charging power, taking into account French urban and rural needs separately. For urban (rural) areas, purchasing a 35-50-kWh (50-kWh) BEV and deploying 22-and 50-kW chargers (50-kW) proves cost-efficient solutions. Policy implications are discussed, and we recommend to revise charging tariffs and pricing methods
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