2,229 research outputs found

    Ultraviolet and Infrared Spectra of Some p-Nitrobenzyl Phenyl Ethers

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    The UV-spectra of substituted p-nitrobenzyl phenyl ethers in ethanol and carbon tetrachloride were recorded. The effect of substitution on band position and intensity is correlated with the electronic nature of the group. The IR-spectra are analysed and the position of certain bands ii;; dis.cussed in terms of molecular structure

    Building the capacity of agricultural extension personnel for effective implementation of agricultural transformation agenda in Nigeria

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    This paper reviews the capacity (number, quality and motivation) of the extension personnel in Nigeria; and describes farmers’ perception of the quality of extension service delivery using evidences from literature, reports of organizations as well as experiences from field research. Findings reveal a tremendous shortage in the number and quality of extension personnel across the country as major reason for the poor performance of the ADPs thereby leaving no hope for the “beautiful†transformation agenda. This paper strongly recommends immediate recruitment of new hands as well as full implementation of a well-designed capacity building programme so as to ensure a sustainable extension service delivery system where extension personnel can operate in the expected commercial (agriculture-driven) economy

    Building the capacity of agricultural extension personnel for effective implementation of agricultural transformation agenda in Nigeria

    Get PDF
    This paper reviews the capacity (number, quality and motivation) of the extension personnel in Nigeria; and describes farmers’ perception of the quality of extension service delivery using evidences from literature, reports of organizations as well as experiences from field research. Findings reveal a tremendous shortage in the number and quality of extension personnel across the country as major reason for the poor performance of the ADPs thereby leaving no hope for the “beautiful†transformation agenda. This paper strongly recommends immediate recruitment of new hands as well as full implementation of a well-designed capacity building programme so as to ensure a sustainable extension service delivery system where extension personnel can operate in the expected commercial (agriculture-driven) economy

    Assessment of training needs of poultry farmers in Zaria local government area of Kaduna State, Nigeria

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    This study assessed the training needs of poultry farmers in Zaria Local Government Area of Kaduna State, Nigeria. The study specifically described the socio-economic characteristics of poultry farmers, identified the training needs by poultry farmers, identified the institutional support enjoyed by poultry farmers, and identified farmers’ constraints to poultry production. One-hundred and fifty (150) poultry farmers were used as sample for this study. Interview schedule was used to collect relevant data. Descriptive statistics was used to analyze the data collected. Result obtained shows that farmer have high level of education. Also, proper record keeping was the major training need by poultry farmers while new agricultural technology ranked as the major institutional support enjoyed by the farmers. High cost of input was the major constraints to poultry production in the study area. This paper concluded that poultry farmers need training on adequate record keeping. It recommended agricultural institutions such as government, private organizations and NGOs should support farmers through intensive training and re-training especially on identified areas of needs in order to increase their productivity. &nbsp

    Synthesis of N-benzothiazole derivative imide on polymeric chain, have possible biological activity

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    In this reserch Some new substituted and unsubstituted poly imides compounds. were synthesized by reaction of acrylol chloride with different amides (aliphatic and aromatic) in a suitable solvent in the presence amount triethyl amine (Et3N) with heating. The Structure confirmation of all polymers were confirmed using FT-IR,1H-NMR,13C-NMR and UV spectroscopy. Thermal analysis (TG) for some polymers showed their thermal stabilities. Other physical properties including softening points, melting point and solubility of the polymers were also measure

    X-Ray Spectral Study of AGN Sources Content in Some Deep Extragalactic XMM-Newton Fields

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    We undertake a spectral study of a sample of bright X-ray sources taken from six XMM-Newton fields at high galactic latitudes, where AGN are the most populous class. These six fields were chosen such that the observation had an exposure time more than 60 ksec, had data from the EPIC-pn detector in the full-Frame mode and lying at high galactic latitude b>25o|b| > 25^o . The analysis started by fitting the spectra of all sources with an absorbed power-law model, and then we fitted all the spectra with an absorbed power-law with a low energy black-body component model.The sources for which we added a black body gave an F-test probability of 0.01 or less (i.e. at 99% confidence level), were recognized as sources that display soft excess. We perform a comparative analysis of soft excess spectral parameters with respect to the underlying power-law one for sources that satisfy this criterion. Those sources, that do not show evidence for a soft excess, based on the F-test probability at a 99% confidence level, were also fitted with the absorbed power-law with a low energy black-body component model with the black-body temperature fixed at 0.1 and 0.2 keV. We establish upper limits on the soft excess flux for those sources at these two temperatures. Finally we have made use of Aladdin interactive sky atlas and matching with NASA/IPAC Extragalactic Database (NED) to identify the X-ray sources in our sample. For those sources which are identified in the NED catalogue, we make a comparative study of the soft excess phenomenon for different types of systems

    Adrenal lesions found incidentally: how to improve clinical and cost-effectiveness

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    Introduction Adrenal incidentalomas are lesions that are incidentally identified while scanning for other conditions. While most are benign and hormonally non-functional, around 20% are malignant and/or hormonally active, requiring prompt intervention. Malignant lesions can be aggressive and life-threatening, while hormonally active tumours cause various endocrine disorders, with significant morbidity and mortality. Despite this, management of patients with adrenal incidentalomas is variable, with no robust evidence base. This project aimed to establish more effective and timely management of these patients. Methods We developed a web-based, electronic Adrenal Incidentaloma Management System (eAIMS), which incorporated the evidence-based and National Health Service–aligned 2016 European guidelines. The system captures key clinical, biochemical and radiological information necessary for adrenal incidentaloma patient management and generates a pre-populated outcome letter, saving clinical and administrative time while ensuring timely management plans with enhanced safety. Furthermore, we developed a prioritisation strategy, with members of the multidisciplinary team, which prioritised high-risk individuals for detailed discussion and management. Patient focus groups informed process-mapping and multidisciplinary team process re-design and patient information leaflet development. The project was partnered by University Hospital of South Manchester to maximise generalisability. Results Implementation of eAIMS, along with improvements in the prioritisation strategy, resulted in a 49% reduction in staff hands-on time, as well as a 78% reduction in the time from adrenal incidentaloma identification to multidisciplinary team decision. A health economic analysis identified a 28% reduction in costs. Conclusions The system’s in-built data validation and the automatic generation of the multidisciplinary team outcome letter improved patient safety through a reduction in transcription errors. We are currently developing the next stage of the programme to proactively identify all new adrenal incidentaloma cases

    Overview: Age-Hardenable Microalloying in Magnesium

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    Synthesis, Characterization and Antimicrobial Activities of Some Nicotinamide – metal Complexes

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    Some transition metal complexes of nicotinamide have been prepared and characterized using melting point, conductivity measurement, infrared, electronic, HNMR and atomic absorption spectroscopic methods. . The antibacterial and antifungal studies of the metal complexes and the ligand have been evaluated against Escherichia coli, Staphylococcus and Bacillus subtilis , Aspergillus flavus, Aspergillus niger and penicillum species. It was found that nicotinamide formed stable metal complexes with these metal ions. The analysis of the spectroscopic data shows that nicotinamide act as monodentate, coordinating through the nitrogen atom of the pyridine ring. All the complexes exhibit 4- coordinate geometry. The results of the antimicrobial studies showed that the metal complexes have higher inhibitory activity than the original nicotinamide against the tested bacteria and fungi species.Keywords: Synthesis, Metal complexes, Nicotinamide, Antibacterial, Antifunga

    A New Probe of the Molecular Gas in Galaxies: Application to M101

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    Recent studies of nearby spiral galaxies suggest that photodissociation regions (PDRs) are capable of producing much of the observed HI in galaxy disks. In that case, measurements of the HI column density and the far-ultraviolet (FUV) photon flux provide a new probe of the volume density of the local underlying H_2. We develop the method and apply it to the giant Scd spiral M101 (NGC 5457). We find that, after correction for the best-estimate gradient of metallicity in the ISM of M101 and for the extinction of the ultraviolet emission, molecular gas with a narrow range of density from 30-1000 cm^-3 is found near star- forming regions at all radii in the disk of M101 out to a distance of 12' (approximately 26 kpc), close to the photometric limit of R_25 = 13.5'. In this picture, the ISM is virtually all molecular in the inner parts of M101. The strong decrease of the HI column density in the inner disk of the galaxy at R_G < 10 kpc is a consequence of a strong increase in the dust-to-gas ratio there, resulting in an increase of the H_2 formation rate on grains and a corresponding disappearance of hydrogen in its atomic form.Comment: accepted for publication in The Astrophysical Journal (1 August 2000); 29 pages including 20 figures (7 gif); AAS LaTex; contact authors for full resolution versions of gif figure
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