Pub Date : 2018-08-27DOI: 10.22453/LSJ-019.2.247257
F. Ghoussayni, A. Ali, A. Bayyati
There has been an increasing need to explain the geometric representation of the Pyramid of Cheops in Egypt. Some divergent approaches have been attempted, which need further exploration.The aim of this research paper is to unfold the mysteries behind one of the most notable notions of our universe, as it lies hidden in the dark configuration of space, the void.The space which incubates patterns depictedin the form of a pyramidcan also nurse buriedvoid.The approach used in this investigation is based on mathematical illustrations, which led to conclude that void versus matter is a constant strain for balance, and has been ever since the first formation of the apex of a pyramid.The main findings of this paper are that the manifest states, as shown in the schematic diagrams depicting the shapeof the pyramid of Cheops, are in the form of balance between void and matter.The key conclusion is that there is a link between the graphical representation of the distributed building blocks in any horizontal layer of the pyramid of Cheops, and the general depiction of its form and angle derived from a geometric balance in the arrangement of its building blocks.
{"title":"Findings of Patterns in Pre-historic Architecture- Case Study of the Pyramid of Cheops","authors":"F. Ghoussayni, A. Ali, A. Bayyati","doi":"10.22453/LSJ-019.2.247257","DOIUrl":"https://doi.org/10.22453/LSJ-019.2.247257","url":null,"abstract":"There has been an increasing need to explain the geometric representation of the Pyramid of Cheops in Egypt. Some divergent approaches have been attempted, which need further exploration.The aim of this research paper is to unfold the mysteries behind one of the most notable notions of our universe, as it lies hidden in the dark configuration of space, the void.The space which incubates patterns depictedin the form of a pyramidcan also nurse buriedvoid.The approach used in this investigation is based on mathematical illustrations, which led to conclude that void versus matter is a constant strain for balance, and has been ever since the first formation of the apex of a pyramid.The main findings of this paper are that the manifest states, as shown in the schematic diagrams depicting the shapeof the pyramid of Cheops, are in the form of balance between void and matter.The key conclusion is that there is a link between the graphical representation of the distributed building blocks in any horizontal layer of the pyramid of Cheops, and the general depiction of its form and angle derived from a geometric balance in the arrangement of its building blocks.","PeriodicalId":31081,"journal":{"name":"Lebanese Science Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48257380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-27DOI: 10.22453/lsj-019.2.150176
F. Bounaceur, F. Z. Bissaad, B. Doumandji-mitiche
Systematic Monitoring was carriedin a vineyard in Mitija, Algeria,during an annual cycle. Monthly sampling conducted bydifferent techniques were performed in different seasons in order to estimatethe vineyard biocenose. Analysis of the data showedsignificant diversity of species of invertebrates including arthropods, especially insects. This fauna is composed of 7540 individuals, distributed over 13 orders, 29 families and 47 species. As for the seasonal evolution of the wine biocenose, it wasrelatively highand diversified during the spring, and composed mainly of phytophagous-opophages and predators.The prevalence and changes in abundance of different functional groups appeared to bedependent on the phenological changes that occuredin the plant from March until June.Thesynchronous presence of phytophagous-opophages with their predatorswas noted. Parasitoids were observed starting from the autumn period.As for the evolution of the functional groupswith the seasons, two groupswere revealed, the first was formed essentially throughphytophagous, predators and all opophages responding to aspring and summer season,and the second group of boringinsects; whereasparasitoids werereported after the autumn period and at the beginning of winter.
{"title":"A study on vineyards biocenose in northern Algria.","authors":"F. Bounaceur, F. Z. Bissaad, B. Doumandji-mitiche","doi":"10.22453/lsj-019.2.150176","DOIUrl":"https://doi.org/10.22453/lsj-019.2.150176","url":null,"abstract":"Systematic Monitoring was carriedin a vineyard in Mitija, Algeria,during an annual cycle. Monthly sampling conducted bydifferent techniques were performed in different seasons in order to estimatethe vineyard biocenose. Analysis of the data showedsignificant diversity of species of invertebrates including arthropods, especially insects. This fauna is composed of 7540 individuals, distributed over 13 orders, 29 families and 47 species. As for the seasonal evolution of the wine biocenose, it wasrelatively highand diversified during the spring, and composed mainly of phytophagous-opophages and predators.The prevalence and changes in abundance of different functional groups appeared to bedependent on the phenological changes that occuredin the plant from March until June.Thesynchronous presence of phytophagous-opophages with their predatorswas noted. Parasitoids were observed starting from the autumn period.As for the evolution of the functional groupswith the seasons, two groupswere revealed, the first was formed essentially throughphytophagous, predators and all opophages responding to aspring and summer season,and the second group of boringinsects; whereasparasitoids werereported after the autumn period and at the beginning of winter.","PeriodicalId":31081,"journal":{"name":"Lebanese Science Journal","volume":"184 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41281506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-27DOI: 10.22453/lsj-019.2.177186
Marwan Husseiki, M. Malaeb
n this study, secondary effluent was used to irrigate fourexperimental plots of Baby eggplants (Solanum melongena L.). Wastewater quality analysisindicatedthat few parameters donotmeet the Lebanese water standards for crop irrigation and reuse.Results demonstrated that aboveground biomass increased by 16% for plants irrigated with treated wastewater,whereas aboveground biomass and fruit weight increasedwhen treated wastewater and mulchwere used. Further studies, such as chemical and microbial analysis, to evaluate the danger and risks on human health of using treated wastewater to irrigate eggplants were initiated.
{"title":"Growth dynamics and productivity of eggplants under different production methods","authors":"Marwan Husseiki, M. Malaeb","doi":"10.22453/lsj-019.2.177186","DOIUrl":"https://doi.org/10.22453/lsj-019.2.177186","url":null,"abstract":"n this study, secondary effluent was used to irrigate fourexperimental plots of Baby eggplants (Solanum melongena L.). Wastewater quality analysisindicatedthat few parameters donotmeet the Lebanese water standards for crop irrigation and reuse.Results demonstrated that aboveground biomass increased by 16% for plants irrigated with treated wastewater,whereas aboveground biomass and fruit weight increasedwhen treated wastewater and mulchwere used. Further studies, such as chemical and microbial analysis, to evaluate the danger and risks on human health of using treated wastewater to irrigate eggplants were initiated.","PeriodicalId":31081,"journal":{"name":"Lebanese Science Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46404031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-27DOI: 10.22453/lsj-019.2.135149
D. E. Zouakh, A. Meddour
This hydro-biological survey on benthic invertebrates was carried out in the most important hydrographic network of the Mitidja plain,Oued El Harrachbasin, Algeria. Results revealedecological zonation taking into account the taxonomic richness and the relative abundance of different zoological groups, and allowed distinguishing abundant, ubiquitous and permanent taxa as well as the existence of a spatiotemporal faunistic gradient. These preliminary results allowed highlightingtaxonomically the “upstream invertebrate fauna”, the “ubiquitous invertebrate fauna” and the “downstream invertebrate fauna”. Consequently, it appearedthat Plecoptera, Hemiptera, Coleoptera are characteristic to the upstream area during the whole year in most of the sampling sites, whereas Diptera, Oligochaeta and Hydracarina are more abundant in the downstream area but in less density in the middle stream. On the other hand, the longitudinal evolution approach was considered in order to evaluate the inter-site distribution. According to the trophic levels, the classification between the various communities was investigated taking into account the concepts of the "Food Functional Group" and "The River Continuum Concept".
这项底栖无脊椎动物的水文生物学调查是在阿尔及利亚Oued El Harrachbasin的Mitidja平原最重要的水文网络中进行的。结果表明，生态地带性考虑了不同类群的分类丰富度和相对丰富度，区分了丰富、泛在和永久的类群，并存在着时空的区系梯度。这些初步结果可以在分类上突出“上游无脊椎动物群”、“普遍存在的无脊椎动物群”和“下游无脊椎动物群”。结果表明，大部分采样点全年上游地区以翅翅目、半翅目、鞘翅目为主，下游地区以双翅目、寡毛目和水螅目为主，中游地区密度较低。另一方面，为了评估站点间的分布，考虑了纵向演化方法。根据营养水平，考虑到“食物功能群”和“河流连续体概念”的概念，研究了不同群落之间的分类。
{"title":"Longitudinal ecological zonation in four Algerian streams","authors":"D. E. Zouakh, A. Meddour","doi":"10.22453/lsj-019.2.135149","DOIUrl":"https://doi.org/10.22453/lsj-019.2.135149","url":null,"abstract":"This hydro-biological survey on benthic invertebrates was carried out in the most important hydrographic network of the Mitidja plain,Oued El Harrachbasin, Algeria. Results revealedecological zonation taking into account the taxonomic richness and the relative abundance of different zoological groups, and allowed distinguishing abundant, ubiquitous and permanent taxa as well as the existence of a spatiotemporal faunistic gradient. These preliminary results allowed highlightingtaxonomically the “upstream invertebrate fauna”, the “ubiquitous invertebrate fauna” and the “downstream invertebrate fauna”. Consequently, it appearedthat Plecoptera, Hemiptera, Coleoptera are characteristic to the upstream area during the whole year in most of the sampling sites, whereas Diptera, Oligochaeta and Hydracarina are more abundant in the downstream area but in less density in the middle stream. On the other hand, the longitudinal evolution approach was considered in order to evaluate the inter-site distribution. According to the trophic levels, the classification between the various communities was investigated taking into account the concepts of the \"Food Functional Group\" and \"The River Continuum Concept\".","PeriodicalId":31081,"journal":{"name":"Lebanese Science Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48840160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-27DOI: 10.22453/lsj-019.2.258286
K. Feghali, Joelle Matta
The effectiveness of the internal audit is an attractive subject for contemporary economic studies due to its importance in banks. Internal audit fulfills a crucial role in an economy that is largely dependent on self-produced information. Indeed, internal audit ensures security of transactions within a bank and preserves its credibility for stakeholders. This article will discuss factors contributing to the evaluation of the effectiveness of internal audit in the specific context of Lebanese banks. Through quantitative analysis, the effectiveness of internal audit wasstudied based on the objectivity and competency of the internal auditor, planning the audit mission and interaction between the internal auditor and the external auditor. The design of this study appearedin the conceptual framework and empirical study on internal audit and its effectiveness in order to evoke elements contributing to the evaluation of internal audit effectiveness in a Lebanese bank.
{"title":"Evaluation of internal audit effectiveness on Lebanese banks","authors":"K. Feghali, Joelle Matta","doi":"10.22453/lsj-019.2.258286","DOIUrl":"https://doi.org/10.22453/lsj-019.2.258286","url":null,"abstract":"The effectiveness of the internal audit is an attractive subject for contemporary economic studies due to its importance in banks. Internal audit fulfills a crucial role in an economy that is largely dependent on self-produced information. Indeed, internal audit ensures security of transactions within a bank and preserves its credibility for stakeholders. This article will discuss factors contributing to the evaluation of the effectiveness of internal audit in the specific context of Lebanese banks. Through quantitative analysis, the effectiveness of internal audit wasstudied based on the objectivity and competency of the internal auditor, planning the audit mission and interaction between the internal auditor and the external auditor. The design of this study appearedin the conceptual framework and empirical study on internal audit and its effectiveness in order to evoke elements contributing to the evaluation of internal audit effectiveness in a Lebanese bank.","PeriodicalId":31081,"journal":{"name":"Lebanese Science Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41638099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-27DOI: 10.22453/lsj-019.2.229246
Zitouni Salim, Naceri Abdelghani, M. Mekki
The effects of clay and limestone dusts in the aggregates on the physico -mechanical characteristics of concretewere investigated. The fine aggregates (dune sand) and coarse aggregates (crushed gravels) used in this study were washed, dried and sieved.Twodifferent mineralogical compositions of dusts (clay and stone) were incorporated in different rates(0%, 5%, 10%, 15%, 20%, 25% and 30%) by replacementin weight of fine(dune sand) and coarse (crushed gravel) aggregates. The presence of clay and limestone dust particles in the fine and coarse aggregates inexcessive quantities influencedthe physico –mechanicalpropertiesof fresh and hardened concrete. The results obtained showed that the effect of clay dust content is more important compared to limestone dust content on the properties of concrete.
{"title":"Effect of the presence of clay and limestone dust particles on the physico-mechanical characteristics of concrete","authors":"Zitouni Salim, Naceri Abdelghani, M. Mekki","doi":"10.22453/lsj-019.2.229246","DOIUrl":"https://doi.org/10.22453/lsj-019.2.229246","url":null,"abstract":"The effects of clay and limestone dusts in the aggregates on the physico -mechanical characteristics of concretewere investigated. The fine aggregates (dune sand) and coarse aggregates (crushed gravels) used in this study were washed, dried and sieved.Twodifferent mineralogical compositions of dusts (clay and stone) were incorporated in different rates(0%, 5%, 10%, 15%, 20%, 25% and 30%) by replacementin weight of fine(dune sand) and coarse (crushed gravel) aggregates. The presence of clay and limestone dust particles in the fine and coarse aggregates inexcessive quantities influencedthe physico –mechanicalpropertiesof fresh and hardened concrete. The results obtained showed that the effect of clay dust content is more important compared to limestone dust content on the properties of concrete.","PeriodicalId":31081,"journal":{"name":"Lebanese Science Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44177271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-27DOI: 10.22453/lsj-019.2.210228
M. Mekki, Naceri Abdelghani, S. Zitouni
Demand for aggregates is growing considerably in line with the development of construction in Algeria. To overcome it, it will be necessary to ensure a rational exploitation of the aggregates available to the country by aevaluation of the existingresources. According to the statistics, the glass wastes accounted for 7% of the world’s solid wastes. The glass wastes can be used in concrete production in two forms: replacing part of aggregate or using as supplementary cementmaterial to replace cement. Using glass wastes to produce recycled aggregates for the production of new concrete reduces the consumption of natural resources as well as landfills.This work consists in formulating a micro-concrete with a substitution of 5 to 25% by weight of crushed calcareous aggregates of fraction 3/8 by glass aggregates of the same fraction 3/8. The incorporation of glass wastes as an aggregate in the micro-concrete plays a role of skeleton and improves its compressive mechanical strength.The compressive strength is considerably improved by substitution of crushed calcareous aggregates by recycled glass aggregates. The optimum has been reached for a value of around 46 MPa for a substitution of 10% of crushed limestone aggregates. The substitution of 10% crushed gravel by crushed glass allows improving the strength of more than 27%.The results obtained provedthat waste glass can be used as an aggregate for producing micro-concrete with a relatively high strength which will not deteriorate with time.
{"title":"Effect of crushed glass aggregate on the physico-mechanical properties of micro-concrete","authors":"M. Mekki, Naceri Abdelghani, S. Zitouni","doi":"10.22453/lsj-019.2.210228","DOIUrl":"https://doi.org/10.22453/lsj-019.2.210228","url":null,"abstract":"Demand for aggregates is growing considerably in line with the development of construction in Algeria. To overcome it, it will be necessary to ensure a rational exploitation of the aggregates available to the country by aevaluation of the existingresources. According to the statistics, the glass wastes accounted for 7% of the world’s solid wastes. The glass wastes can be used in concrete production in two forms: replacing part of aggregate or using as supplementary cementmaterial to replace cement. Using glass wastes to produce recycled aggregates for the production of new concrete reduces the consumption of natural resources as well as landfills.This work consists in formulating a micro-concrete with a substitution of 5 to 25% by weight of crushed calcareous aggregates of fraction 3/8 by glass aggregates of the same fraction 3/8. The incorporation of glass wastes as an aggregate in the micro-concrete plays a role of skeleton and improves its compressive mechanical strength.The compressive strength is considerably improved by substitution of crushed calcareous aggregates by recycled glass aggregates. The optimum has been reached for a value of around 46 MPa for a substitution of 10% of crushed limestone aggregates. The substitution of 10% crushed gravel by crushed glass allows improving the strength of more than 27%.The results obtained provedthat waste glass can be used as an aggregate for producing micro-concrete with a relatively high strength which will not deteriorate with time.","PeriodicalId":31081,"journal":{"name":"Lebanese Science Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45621895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-27DOI: 10.22453/lsj-019.2.200209
I. Mansour, Ansar El Andari
Forensic DNA analysis is based on the evaluation of DNA profiles obtained from reference samples or crime scene traces. Profiles are determined using different commercial STR multiplex kits, which includeallelic ladders for the correct designation of alleles ofa given STR system. However, some new STR variants could be observed and their identification is essential for proper allele size calling in casework interpretation and cases of kinship matching or relationship testing. A total of 6392 samples were analyzedas part of the DNA work at our DNA testing facility from 2004 until 2016, where one hundred and twelvenew different STR variant alleles of 20STR loci wereobserved in the Lebanese population. Forty-fiveof these variant alleles were internationally reported in the STR-base whereas the remainingsixty-sevenalleles were observed for the first time. The loci included D3S1358, D19S433, D21S11, D13S317, TPOX, FGA, D7S820, D18S51, CSF1PO, D2S1338, D10S1248, D12S391, D22S1045, D2S441, Penta-D, Penta-E, SE33, D1S1656, vWA, and THO1.Also, four triallelic patterns were observed at D21S11, D12S391, D13S317 and Penta-D loci. Primer binding site mismatch that resulted in a discordance between the amplification of different kits was observed once attheD19S433 locus.
{"title":"Genotyping irregularities observed in STR markers used in forensics and human identification in the Lebanese population","authors":"I. Mansour, Ansar El Andari","doi":"10.22453/lsj-019.2.200209","DOIUrl":"https://doi.org/10.22453/lsj-019.2.200209","url":null,"abstract":"Forensic DNA analysis is based on the evaluation of DNA profiles obtained from reference samples or crime scene traces. Profiles are determined using different commercial STR multiplex kits, which includeallelic ladders for the correct designation of alleles ofa given STR system. However, some new STR variants could be observed and their identification is essential for proper allele size calling in casework interpretation and cases of kinship matching or relationship testing. A total of 6392 samples were analyzedas part of the DNA work at our DNA testing facility from 2004 until 2016, where one hundred and twelvenew different STR variant alleles of 20STR loci wereobserved in the Lebanese population. Forty-fiveof these variant alleles were internationally reported in the STR-base whereas the remainingsixty-sevenalleles were observed for the first time. The loci included D3S1358, D19S433, D21S11, D13S317, TPOX, FGA, D7S820, D18S51, CSF1PO, D2S1338, D10S1248, D12S391, D22S1045, D2S441, Penta-D, Penta-E, SE33, D1S1656, vWA, and THO1.Also, four triallelic patterns were observed at D21S11, D12S391, D13S317 and Penta-D loci. Primer binding site mismatch that resulted in a discordance between the amplification of different kits was observed once attheD19S433 locus.","PeriodicalId":31081,"journal":{"name":"Lebanese Science Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43606541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-27DOI: 10.22453/LSJ-019.2.187199
Zoheir Bouchikhi-Tani, M. Khelil, M. Bendahou
The essential oils extracted by hydrodistillation from fivearomatic plants from Algerian West –Ammoїdes verticillata (Apiacae), Origanum glandulosum (Lamiacae), Thymus capitatus (Lamiacae), Rosmarinus officinalis (Lamiacae), Artemisia herba-alba (Asteracae), were tested with various amounts on the larvaeof Tineola bisselliella, under the conditions of laboratory (Temperature of 26°C and with a relative humidity of 75 %). These oilscaused a significant larvicidalactivity. The essential oils extracted from Artemisia herba-alba, Rosmarinus officinalis, Origanum glandulosum are most toxic with LD50of 5,92μL/50,24cm², 6,66μL/50,24cm², and 7,16μL/50,24cm² respectively, Ammoїdes verticillata present alittle variable toxicity with LD50= 7,95μL/50,24cm², whereas the essential oil of Thymus capitatus is the least toxic on the larves of T. bisselliella with one LD50de 9,81μL/50,24cm².The analysis of the chemical composition shows the richness of five essential oils in compounds known for their insecticidal properties like α-pinène, β-pinène, p-cymène, carvacrol, camphre, γ-terpinène, and1,8-cineole, what explains the results obtained.
{"title":"Evaluation of the larvicidaleffectof the essential oils extracted from five aromatic plants of Algeria: test on the miteTineola bisselliella (Lepidoptera:Tineidae)","authors":"Zoheir Bouchikhi-Tani, M. Khelil, M. Bendahou","doi":"10.22453/LSJ-019.2.187199","DOIUrl":"https://doi.org/10.22453/LSJ-019.2.187199","url":null,"abstract":"The essential oils extracted by hydrodistillation from fivearomatic plants from Algerian West –Ammoїdes verticillata (Apiacae), Origanum glandulosum (Lamiacae), Thymus capitatus (Lamiacae), Rosmarinus officinalis (Lamiacae), Artemisia herba-alba (Asteracae), were tested with various amounts on the larvaeof Tineola bisselliella, under the conditions of laboratory (Temperature of 26°C and with a relative humidity of 75 %). These oilscaused a significant larvicidalactivity. The essential oils extracted from Artemisia herba-alba, Rosmarinus officinalis, Origanum glandulosum are most toxic with LD50of 5,92μL/50,24cm², 6,66μL/50,24cm², and 7,16μL/50,24cm² respectively, Ammoїdes verticillata present alittle variable toxicity with LD50= 7,95μL/50,24cm², whereas the essential oil of Thymus capitatus is the least toxic on the larves of T. bisselliella with one LD50de 9,81μL/50,24cm².The analysis of the chemical composition shows the richness of five essential oils in compounds known for their insecticidal properties like α-pinène, β-pinène, p-cymène, carvacrol, camphre, γ-terpinène, and1,8-cineole, what explains the results obtained.","PeriodicalId":31081,"journal":{"name":"Lebanese Science Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47436058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-27DOI: 10.22453/lsj-019.2.123134
A. Fercha, Ayache Laabassi, Tarek Aissani, houki Sahraoui, Mahmoud Ghaoui
n thisstudy, the ability of germination, seedlings emergence and salt stress tolerance in durum wheat (Triticum durum Desf.) wereevaluated by multivariate analysis using eight cultivars collected from different regions of Algeria. Two-way ANOVA indicatedsignificant effects of "salt stress" and"genotype"on all the attributes of germination and seedlings growth. The principal component analysis indicated that the first and second components accounted for about 64.5% of the variation among the traits analyzed. The second component includedthe coleoptileslength,seedlingslength and vigor index, and accountedfor nearly 60% of the variation. This component representedthe ability of wheat seedlings to grow under salt stress conditions. The hierarchical cluster analysis classified the eight genotypes into two groups. Results obtained suggestedthat selection for high values of the traits such as"coleoptileslength", ‘seedlingslength’and "seedsvigor"didimprove salt tolerance of durum wheat. In addition, the cross between the genotypes classified in groups I and II may increase the genetic diversity in this species, and enable efficient selection among the progeny obtained from these crosses.
以阿尔及利亚不同地区的8个硬粒小麦(Triticum durum Desf.)为材料，采用多变量分析方法对其萌发、出苗和耐盐胁迫能力进行了评价。双因素方差分析表明，“盐胁迫”和“基因型”对种子萌发和幼苗生长的所有属性均有显著影响。主成分分析表明，第1和第2分量占所分析性状变异的64.5%左右。第二分量包括胚芽长度、幼苗长度和活力指数，占变异的近60%。这一成分代表了小麦幼苗在盐胁迫条件下的生长能力。分层聚类分析将8个基因型分为两组。结果表明，选择“胚芽长度”、“苗长”和“种子活力”等高值性状对硬粒小麦耐盐性有一定的促进作用。此外，I和II组基因型之间的杂交可能增加该物种的遗传多样性，并使这些杂交获得的后代能够进行有效的选择。
{"title":"Multivariateanalysis of traits associated with durum wheat seed vigor under saline conditions.","authors":"A. Fercha, Ayache Laabassi, Tarek Aissani, houki Sahraoui, Mahmoud Ghaoui","doi":"10.22453/lsj-019.2.123134","DOIUrl":"https://doi.org/10.22453/lsj-019.2.123134","url":null,"abstract":"n thisstudy, the ability of germination, seedlings emergence and salt stress tolerance in durum wheat (Triticum durum Desf.) wereevaluated by multivariate analysis using eight cultivars collected from different regions of Algeria. Two-way ANOVA indicatedsignificant effects of \"salt stress\" and\"genotype\"on all the attributes of germination and seedlings growth. The principal component analysis indicated that the first and second components accounted for about 64.5% of the variation among the traits analyzed. The second component includedthe coleoptileslength,seedlingslength and vigor index, and accountedfor nearly 60% of the variation. This component representedthe ability of wheat seedlings to grow under salt stress conditions. The hierarchical cluster analysis classified the eight genotypes into two groups. Results obtained suggestedthat selection for high values of the traits such as\"coleoptileslength\", ‘seedlingslength’and \"seedsvigor\"didimprove salt tolerance of durum wheat. In addition, the cross between the genotypes classified in groups I and II may increase the genetic diversity in this species, and enable efficient selection among the progeny obtained from these crosses.","PeriodicalId":31081,"journal":{"name":"Lebanese Science Journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42259404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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