oalib

OALib Journal期刊

ISSN: 2333-9721

费用:99美元

投稿

时间不限

( 2673 )

( 2672 )

( 2208 )

( 2024 )

自定义范围…

匹配条件: “S.A. Ferreira” ,找到相关结果约819798条。
列表显示的所有文章,均可免费获取
第1页/共819798条
每页显示
Potential Assessment Multi-Repeating Abiotic/Biotic Motivation Coincide Biofertilizers to Optimize Black Cumin (Nigella sativa L.) Seed Yield Production and Quality  [PDF]
Tarek Elsayed S.A, El Sayed S.A
Agricultural Sciences (AS) , 2021, DOI: 10.4236/as.2021.122006
Abstract: Black cumin (Nigella sativa L.) the highly aggregate valuable medicinal plant was field cultivated for two subsequent seasons (2018, 2019) designed as factorial split plot based on randomized complete block with 3 replications. The main factors 4 elicitors: salicylic acid, (SA) Nano-selenium (NPs), yeast (YS) chitosan (CH) and (E0), control. Whereas, the sub-main plot 4 biofertilizers, dray Moringa leaves extract, (MLE), neem dray leaves extract (NME), humic acid (HA) and traditional (NPK) chemical fertilizer as control. Allied statistical analysis of variance revealed that biotic and abiotic elicitors coincide biofertilizer and NPK chemical fertilizer actuated significant positive impacts, dray seed, seed fixed oil, seed essential oil yield production. Also, significantly amelioration bioactive major fatty acids content of seed fixed oil (linolenic > carvone) dihydrolenoleic > oleic) as well as major terpens content of seed essential oil (P-cymene > thnymoquione > Penine). Consequently, multi-repeating elicitation cod be considered reliable strategy achieve sustainable development for N-sativa under, biotic elicitor coincide biofertilizers that excel abiotic elicitors coincide biofertilizer which excel biotic or abiotic elicitors coincide NPK traditional chemical fertilizer.
Detec??o de Erwinia psidii via enriquecimento em extrato de folhas de goiabeira e imunodifus?o radial dupla
Teixeira, Ana Cristina O.;Ferreira, Marisa A.S.V.;Marques, Abi S.A.;
Tropical Plant Pathology , 2008, DOI: 10.1590/S1982-56762008000300006
Abstract: one of the most important diseases affecting guava production in brazil is bacterial blight, caused by the bacterium erwinia psidii. pathogen dissemination often occurs through contaminated propagating plant material. the development of more effective diagnostic methods may reduce pathogen dissemination in the country. considering the need for a reliable and simple method for detecting the pathogen in plant material, the objectives of this study were to produce e. psdii-specific polyclonal antibodies and to develop a detection method using bacterial population enrichment on guava leaf extracts followed by double radial immunodiffusion. the antiserum was produced against the e. psidii type strain ibsbf 435 (icmp 8426, ncppb 3555) and its efficiency, specificity and sensitivity threshold were determined. the antiserum as15-1 was tested with strains of several plant-pathogenic bacteria and reacted positively with all strains of e. psidii, although cross reactions were detected with two non-pathogenic isolates from guava flora. bacterial multiplication on leaf extracts was observed 12 h after incubation from initial populations of 103, 105 and 107 ufc/ml, up to 60 h. after 12 h it was already possible to detect e. psidii in samples with starting populations of 107 cfu/ml. after 36 h, the enrichment technique allowed the detection of e. psidii using double radial immunodiffusion in samples with populations as low as 103 cfu/ml. considering the possibility of false positives it is desirable to associate other diagnostic methods with the method proposed in this study.
The Surface Tension of Kraft Black Liquor from Eucalyptus
Ferreira,Abel G.M.; Ribeiro,Inês S.A.; Lobo,Lélio Q.;
Silva Lusitana , 2005,
Abstract: the surface tension of kraft black liquor from eucalyptus has been measured between 20 and 70oc for solids content ranging up to 54 per cent. the dependence of the surface tension on the solids content follows the general pattern observed for black liquors from other woods. an empirical correlation describing the dependence of the surface tension on temperature and on solids content was established. this correlation can be applied to the actual conditions found in the chemicals recovery cycle of the kraft pulping process.
Gastroparesia diabética
Cesarini P.R.,Ferreira S.R.G.,Dib S.A.
Revista da Associa??o Médica Brasileira , 1997,
Abstract:
Compatibilidade de inseticidas e acaricidas com o percevejo predador Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) em algodoeiro
TORRES, JORGE B.;SILVA-TORRES, CHRISTIAN S.A.;SILVA, MURILO R.;FERREIRA, JOSINéLIA F.;
Neotropical Entomology , 2002, DOI: 10.1590/S1519-566X2002000200020
Abstract: the objectives of this work were to study the insecticides espinosad, lambdacyhalothrin and monocrotophos on the control of alabama argillacea (hübner), the compatibility of these insecticides with the predatory stinkbug podisus nigrispinus (dallas), and the effects of the insecticides and acaricides methiocarb, pymetrozine, thiamethoxam, abamectin, diafenthiuron, dicofol and propargite on the predatory stinkbug behavior preying upon a. argillacea under field conditions. more than 90% of cotton leafworm control was obtained at the day 0 of application with all insecticides. control of a. argillacea by lambdacyhalothrin (20 g a.i./ha) and monocrotophos (240 and 320 g a.i./ha) was observed up to day 3 after application; while spinosad (30 and 60 g a.i./ha) prolonged control up to day 5. monocrotophos and lambdacyhalothrin were significantly more toxic to p. nigrispinus compared to spinosad. toxicity of monocrotophos and lambdacyhalothrin to p. nigrispinus was evident up to day 3 after application. survival of p. nigrispinus was affected by methiocarb, thiamethoxam, diafenthiuron, abamectin and sulfur one day after application and only under thiamethoxam treatment after three days. pymetrozine, dicofol and propargite did not affect p. nigrispinus survival compared to untreated plants. podisus nigrispinus at the day of application did not prey on a. argillacea under methiocarb treatment, and the predation rate was affected under thiamethoxam, abamectin, diafenthiuron and sulfur treatments at the day of application and after three days. the insecticides pymetrozine and spinosad, and the acaricides dicofol and propargite were compatible to p. nigrispinus and should be considered within a cotton pest management program.
Spectroscopy and thermal studies of the reaction of iodine with cobalt (II) and copper (II) acetylacetonate
Sadeek,S.A.;
Anales de la Asociaci?3n Qu?-mica Argentina , 2005,
Abstract: a spectrophotometric study of 1:1 charge-transfer complexes derived from two metal acetylacetonates ( co (ii) and cu (ii) acetylacetonates) donor and iodine ( s-acceptor ) has been carried out. the equilibrium constants ( k ) and absortivity ( e ) for the formation of the chelate-iodine complexes have been evaluated. the suggested structure of the two solid triiodide charge-transfer complexes reported in this study is further supported by thermal analysis and far and mid infrared measurements.
Exploring knowledge and attitudes towards counselling about vitamin supplements in Jordanian community pharmacies
Shilbayeh,S.A.;
Pharmacy Practice (Internet) , 2011, DOI: 10.4321/S1886-36552011000400010
Abstract: the use of multivitamins within a pharmaceutical setting has been the subject of considerable debate. objective: this research aimed to provide a platform for assessing and evaluating knowledge, attitudes and professional practices of jordaninan community pharmacists in counselling patients about the safe consumption of vitamins. methods: a cross-sectional study was conducted between october 2009 and may 2010. data collection was carried out using a 44-item semi-structured self-administrated questionnaire. setting: community pharmacies in amman with target sample of 400 pharmacists. results: a total of 388 pharmacists participated in this study. the majority (77.8%) of pharmacists believed that a balanced diet is more achievable by eating healthily than by vitamins supplements. 78.1% of participants believed that vitamins deficiency would not shorten life spans, while 80.7% agreed that vitamin supplements could be toxic or might contain unlabelled harmful ingredients. less than half of pharmacists were aware that some antioxidant vitamins have been verified to be of unproven value, or may even cause cancer. while over 80% of pharmacists would recommend vitamins on a regular basis without prescription, the majority agreed that counselling on vitamin supplements is part of their role in pharmaceutical care (93.3%), in addition to providing relevant information to other healthcare professionals (78.4%). moreover, responses to specific knowledge questions, such as the interactions of vitamins with drugs or the recommended dietary allowance of vitamins for infants, children, and pregnant women, were negative. furthermore, only a minority of pharmacists would recheck the accuracy of dose regimens in prescriptions and symptoms of true vitamins deficiency or would follow up patients to record any consequences of vitamins consumption. conclusion: the questionnaire revealed satisfactory awareness of community pharmacists about their role in counselling; however, further progr
Effects of some ions on the conversion of amorphous calcium phosphate to calcium hydroxyapatite in aqueous medium
S.A. Thomas
Bulletin of the Chemical Society of Ethiopia , 1991,
Abstract: BuII. Chem. Soc. Ethiop., 5(1), 11-20 (1991).
Grondtrekke van Adrio K nig se teologie
S.A Strauss
Acta Theologica , 2005,
Abstract: In 2001 Adrio K nig published a book Focus on 300 questions about faith, which most people ask (title translated). Basically this book can be regarde as a summary of K nig’s systematic theology. K nig’s theology is so stimulating that it deserves research. This article analyses Focus, with reference to other books by the same author, aiming at disclosing the basic features of his theology. The article concludes that K nig’s theology can be described, from a reformed perspective, as ambiguous: biblical as well as contextual, confessional as well as ecumenical. K nig describes his theology as “eschatological covenant theology”. The positive and negative implications are also discussed.
Reformed theology for the 21st century: confessional, contextual and ecumenical
S.A Strauss
Acta Theologica , 2005,
Abstract: This article scrutinises two important, recently published books on the identity of Reformed theology. These books serve as a springboard for the formation of ideas concerning the way in which Reformed theology should be practised in the 21st century. The article tests the hypothesis that the correct connection and relationship between confession, context and ecumenicity guarantees the practising of meaningful, thorough and useful Reformed theology.
第1页/共819798条
每页显示


Home
Copyright © 2008-2020 Open Access Library. All rights reserved.