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Local people’s knowledge on the adverse impacts and their attitudes towards growing Eucalyptus woodlot in Gudo Beret Kebele, Basona Worena district, Ethiopia

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Ecological Processes 2017年第1期6卷 381-393页

作者： solomon a.ele ta.esse solomon Mulu tafere Department of Natural Resources Management College of Agriculture and Natural Resource SciencesDebre Berhan UniversityP.O.Box 445Debre BerhanEthiopia Department of Forestry College of AgricultureWollo UniversityP.O.Box 1145DessieEthiopia

Introduction:Growing Eucalyptus at a farm level in the form of woodlot has become popular among rural households in *** example,rural households mainly establish Eucalyptus woodlot as a component of livelihood improvement and diversification to meet household wood demand and generating cash ***,there is lack of information on the growth parmeters of Eucalyptus woodlot and the factors influencing the household decision on their establishment at the individual farmland *** objective of this study was to examine local people’s knowledge on the adverse impacts and their attitudes towards growing Eucalyptus woodlot in Gudo Beret *** hypothesized that local people’s knowledge on the adverse impacts and their attitudes towards growing Eucalyptus woodlot in Gudo Beret Kebele is affected by socioeconomic and cognitive ***:A structured questionnaire comprising closed-and open-ended questions was developed and administered to a total of n=94 households to collect information on local people’s knowledge on the adverse impacts and their attitudes towards growing Eucalyptus *** households were randomly selected through a lottery system based on their house identification *** statistics,binary logit,and multiple linear regression were used to analyze and interpret the ***:The results revealed that about 92%of the respondents noted that growing Eucalyptus woodlot had positive impacts on the socioeconomic situation of the community considering that it contributes to economic benefits through the sale of wood products,such as poles,construction materials,and ***,only 8%of the respondents noted that the negative impacts of Eucalyptus woodlot were attributed to the decline in crop and forage production due to its allelopatic effect,and the reduction in ground water *** of the respondents(about 68%)preferred to grow Eucalyptus woodlot in Gudo Beret ***,most of the respon

关键词： Adverse impacts Binary logit regression Cognitive variables Eucalyptus Fuelwood Local communities Multiple linear regression Rural households Socioeconomic variables Woodlot

Bone marrow-derived microglia confer neuroprotection to a mouse model of amyotrophic lateral sclerosis

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Neural Regeneration Research 2024年第12期19卷 2586-2587页

作者： Beka solomon Department of Molecular Microbiology and Biotechnology The Shmunis School of Biomedicine and Cancer Researchthe George S.Wise Faculty of Life Sciences Tel-Aviv UniversityRamat AvivIsrael

Amyotrophic lateral sclerosis(ALS) is a neurodegenerative disease that causes the progressive loss of both upper and lower motor neurons in the brain,brainstem,and spinal *** exact mechanisms of ALS are still unclear,but genetic and molecular studies have revealed some key factors that may contribute to motor neuron *** motor neurons,other cell types in the nervous system,such as reactive astrocytes and activated microglia,also show pathological changes and secrete harmful substances and inflammatory cytokines(Appel et al.,2011).

关键词： sclerosis brainstem

Molecular phylogeny of the genus Corchorus(Grewioideae,Malvaceae s.l.) based on nuclear rDNA ITS sequences

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The Crop Journal 2018年第5期6卷 552-563页

作者： solomon Benor Department of Biotechnology College of Biological and Chemical Engineering Addis Ababa Science and Technology University

A molecular phylogenetic analysis of the genus Corchorus(Grewioideae,Malvaceae s.l.)is presented,based on sequences of the nuclear ribosomal DNA internal transcribed spacer(ITS)region for 144 accessions representing 47 *** other genera from the subfamily Grewioideae,namely Pseudocorchorus,Triumfetta,Sparrmannia,Entelea,and Grewia,were included as *** monophyly of the genus was well supported by all phylogenetic analyses(maximum likelihood,Bayesian approaches,and parsimony),and Corchorus was divided into four major *** majority of African species formed a statistically highly supported and distinct clade separated from the other pantropically distributed *** endemic species from Australia,New Caledonia,and tropical America were nested within this distinct clade,indicating dispersal from Africa to the rest of the *** on the taxa included in this study,the two cultivated species(*** and ***)shared a common ancestry with wild species of ***,***,***,***-olitorius,***,***,***,and ***,previously considered an accepted genus,was nested within the genus Corchorus and shared a common ancestry especially with *** and *** on morphological and anatomical similarity as well as the results of the present molecular findings,inclusion of the six Pseudocorchorus species into Corchorus is proposed,with Pseudocorchorus as a synonym of *** the included outgroup taxa,Triumfetta is the closest sister to Corchorus,while the common ancestor of Corchorus/Pseudocorchorus,Triumfetta,Sparrmannia,and Entelea is Grewia.A further phylogenetic study with more taxa mainly from Australia,together with additional molecular markers and morphological investigation,would help to test the hypothesis on the biogeography and growth form evolution of the genus Corchorus.

关键词： Corchorus Jute Malvaceae s.l. Phylogeny Pseudocorchorus

The brain-derived neurotrophic factor in neuronal plasticity and neuroregeneration: new pharmacological concepts for old and new drugs

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Neural Regeneration Research 2018年第6期13卷 983-984页

作者： solomon Habtemariam Herbal Analysis Services UK & Pharmacognosy Research Laboratories University of Greenwich

Neurotrophins：Neurotrophins are peptides or proteins that are known to regulate neuronal viability,development,and function Beyond synaptic plasticity,neurotrophins protect neurons from apoptosis and also promote neu... 详细信息

关键词： The brain-derived neurotrophic factor in neuronal plasticity and neuroregeneration new pharmacological concepts for old and new drugs

Construction of Social Cohesion and Living Together in the Cameroonian Public Space: Differences of Opinion versus the Emergence of a Common Sense in Discourse

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International Journal of Communications, Network and System Sciences 2021年第6期14卷 75-94页

作者： Corine esse Department of Corporate Communication Advanced School of Mass Communication (ASMAC) University of Yaounde II Yaounde Cameroon

Social cohesion and living together increasingly appear to be a response by the public authorities to the emergence of identity claims in Cameroon, in a context marked by the Anglophone crisis. Indeed, the socio-historical evolution reveals that living together in Cameroonian society changes considerably according to the social crises that animate it. It is therefore necessary to question the construction of these two concepts, in a dynamic marked by the reconfiguration of the public space characterised by occurrences in journalistic discourse. The aim of this proposal is to analyse the different conceptions that emerge from debates on cohesion and living together in the Cameroonian public space, in order to detect the true meaning that emerges from them. Our general objective is to explore the possibilities of constructing a problematic in the public space, namely living together, based on what is said by the actors in televised debates. The observation of the public space in particular that circumscribed by televised debates, reveals a frequency of their discursive use. The questions we asked ourselves were the following: How are the notions of living together and social cohesion constructed in televised debates in Cameroon? How do citizens position themselves in the face of the multitude of identity allegiances with which they identify in the public space? In order to provide some answers to this question, we observed and analysed the statements made by actors on stage in televised debates on four television channels. We were particularly interested in the debates on living together and social cohesion, and by means of discourse analysis we were able to detect the content of these notions. Our analysis of the television debates shows that social cohesion is presented as the manifestation of “living together”, in the sense that it implies an interweaving of identities between the different strata of the population with a view to their full participation in the con

关键词： Social Cohesion Living Together Discourse Analysis Television Debates

Impacts of CO2 and H2S on the risk of hydrate formation during pipeline transport of natural gas

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Frontiers of Chemical Science and Engineering 2019年第3期13卷 616-627页

作者： solomon A. Aromada Bjorn Kvamme Department of Physics and Technology University of Bergen5007 BergenNorway Strategic Carbon LLC Vestre Holbergsallmenningen 175011 BergenNorway

Evaluation of maximum content of water in natural gas before water condenses out at a given temperature and pressure is the initial step in hydrate risk analysis during pipeline transport of natural gas, The impacts of CO2 and ELS in natural gas on the maximum mole-fractions of water that can be tolerated during pipeline transport without the risk of hydrate nucleation has been studied using our novel thermodynamic scheme. Troll gas from the North Sea is used as a reference ease, it contains very negligible amount of CO2 and no H2S. Varying mole-fractions of CO2 and INS were introduced into the Troll gas, and the effects these inorganic impurities on the water tolerance of the system were evaluated. It is observed that CO2 does not cause any distinguishable impact on water tolerance of the system, but H2S does. Water tolerance decreases with increase in concentration of H2S. The impact of ethane on the system was also investigated. The maximum mole-fraction of water permitted in the gas to ensure prevention of hydrate formation also decreases with increase in the concentration of C2H6 like H2S. H2S has the most impact, it tolerates the least amount of water among the components studied.

关键词： hydrate hydrogen Sulphide CO2 dewpoint pipeline

A Comparative study on generalized Manev potential and Newtonian potential in perturbed restricted four-body problem

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Applied Mathematics(A Journal of Chinese Universities) 2023年第1期38卷 44-57页

作者： Jagadish Singh Omale solomon Okpanachi Department of Mathematics Faculty of Physical SciencesAhmadu Bello UniversityZariaNigeria Department of Engineering and Space Systems National Space Research and Development Agency(NASRDA)Obasanjo Space CentreAbujaNigeria

The motion of a test particle within the context of the restricted four-body problem(R4BP)driven by a new kind of potential,called the generalized Manev potential,with perturbations in the Coriolis and centrifugal forces is considered in this *** system possesses eight libration points which were distributed on its plane of motion in different manner from those of the usual Newtonian *** the case of the perturbed R4BP under Newtonian potential,where two of these librations are stable,all of them are unstable in linear sense under Manev *** found that a gradual perturbation in the centrifugal force causes the trajectories of motion to drift inward but the Coriolis force was proven to have no effect on the location of the libration points of the *** first order Lyapunov characteristic exponents,the dynamical behavior of the system is found *** experimented with a high velocity stellar system(82 ***)to establish the applicability of the model in astrophysics.

关键词： generalized Manev potential Coriolis force centrifugal force stability chaotic 82 G.Eridani

Communication on Road Safety in Cameroon: Representation in the Press and Government Strategy

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International Journal of Communications, Network and System Sciences 2021年第5期14卷 55-73页

作者： Corine esse Department of Corporate Communication-Advanced School of Mass Communication (ASMAC) University of Yaounde II Yaounde Cameroon

Road safety is a major concern in Cameroon, due to the multiplicity of road accidents resulting in the loss of human lives and the deterioration of road infrastructures. In 2019, the year marking the end of the United Nations decade of actions for road safety, the number of deaths on Cameroonian roads was 937. In this article, we have selected to examine the theme of road safety in the Cameroonian press and to look at awareness-raising strategies on the same subject. Our objective is to highlight the importance of communication in solving road safety problems. We therefore asked ourselves the following questions: How is the topic of road safety dealt with in the media? In combination with awareness campaigns, are the representations conveyed through the press sufficient to contribute to a change in road users behaviour? The option of studying both the representations of road safety that we have chosen has enabled us to show how the co-production of this public problem can be explained through the interrelations between the media and institutional fields. We initially postulated that communication achieves its objective in road safety campaigns when it integrates mixed strategies including campaigns aimed at road users, information for the general public through the press and social marketing campaigns aimed at changing behaviour. After a content analysis of articles published on road safety in three newspapers and an analysis of the messages disseminated in the posters and flyers produced during awareness campaigns, we found that awareness-raising through the media is not enough on its own. We therefore conclude that it is important to combine marketing techniques, citizen education and awareness raising aimed at changing user behaviour in road safety communication strategies. The target strategy is also important because each road safety message is addressed to a specific target group that plays a specific role

关键词： Social Communication Road Safety Communication for Development

Potential hybrid feedstock for biodiesel production in the tropics

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Frontiers in Energy 2016年第3期10卷 329-336页

作者： solomon GIWA Oludaisi ADEKOMAYA Collins NWAOKOCHA Department of Agricultural and Mechanical Engineering College of Engineering and Environmental Studies Olabisi Onabanjo UniversityIbogun Campus Ifo 234039 Nigeria

Recently, mixture of different oils at various proportions have been used as feedstock for biodiesel production. The primary aim is to improve fuel properties which are strongly influenced by the fatty acid composition of the individual oil that makes up the feedstock mix. The tropics are renowned for abundant oil-bearing crops of which palm kernel oil （PKO） from palm seed and groundnut oil （GNO） are prominent. This present paper investigated biodiesel production from hybrid oil （HO） of PKO （medium carbon chain and highly saturated oil） and GNO （long carbon chain and highly unsaturated oil） at 50/ 50 （v/v） blending. The principal fatty acids （FAs） in the HO are oleic （35.62%） and lauric acids （24.23%） with 47.80% of saturated FA and 52.26% of unsaturated FA contents. The chemical conversion of the oil to methyl ester （ME） gave 86.56% yield. Fuel properties of hybrid oil methyl ester （the HOME） were determined in accordance with standard test methods and were found to comply with both ASTM D6751 and EN 14214 standards. The oxidative stability, cetane number and kinematic viscosity （KV） of HOME were observed to be improved when compared with those of GNO methyl ester from single parent oil, which could be accredited to the improved FA composition of the HO. The KV （3.69 minE/s） of HOME obtained in this paper was remarkably low compared with those reported in literature for most biodiesels. This value suggests better flow, atomization, spray and combustion of this fuel. Conclusively, the binary blend of oils can be a viable option to improve the fuel properties ofbiodiesel feedstock coupled with reduced cost.

关键词： groundnut oil palm kernel oil methyl ester,fuel properties tropics fatty acid composition