{"title":"Application of Ectomycorrhiza (Scleroderma sp.) in Mangium (Acacia Mangium Willd.) using Artisanal Small-scale Gold Mining(ASGM) Tailings","authors":"Ulfa Luthfiana, M. Riniarti, A. Bintoro","doi":"10.23960/JSL1885-97","DOIUrl":"https://doi.org/10.23960/JSL1885-97","url":null,"abstract":"Artisanal small-scale gold mining tailings frequently used hazardous toxic materials that could contaminate land, rivers, and lakes which harmful to the environment and health. Phytoremediation is one way to overcome the min ing waste. M angium (Acacia mangium Willd.) is one of plant that often used for mining land phytoremediation. However, it wa s difficult for mangium to be able to survive on land with such extreme conditions, therefore additional input is needed. Using ectomycorrhiza fungi could be an alternative. This study aimed to measure the adaptation of mangium in gold mining tailings and analyze the function of ectomycorrhiza (Scleroderma sp.) in the growth of mangium. The experimental design used a completely randomized design with six growth media as treatments with five replications. The growth media used were : (1) top soil with mycorrhiza, (2) top soil without mycorrhiza, (3) top soil + tailings with mycorrhiza, (4) soil + tailings without mycorrhiza, (5) tailings with mycorrhiza, and (6) tailings without mycorrhiza. Data w ere analyzed statistically using analysis of variance followed with a Least Significant Difference test. The results showed that the surviv al rate of mangium life in tailing media with mycorrhizae was fairly high with a percentage of life reaching 60% even though the growth was less when compared to top soil media with mycorrhiza that reache d 100%. The highest growth rate was achieved by mangium in top soil media without tailings and mycorrhiza (control) . This research showed that ectomycorrhiza did not have any significant effects on mangium growth in gold tailing. Keywords : Acacia mangium, ectomycoriza, gold tailings, phytoremediation, Scleroderma sp.","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":"109 1","pages":"85-97"},"PeriodicalIF":0.6,"publicationDate":"2020-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73419958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Effect of Dormancy Breakdown through Water Immersion with Temperature Stratification on the Germination of Sugar Palm Seeds (Arenga pinnata)","authors":"Astry Sri Rezeki Rumahorbo, Duryat, A. Bintoro","doi":"10.23960/jsl1877-84","DOIUrl":"https://doi.org/10.23960/jsl1877-84","url":null,"abstract":"Sugar palm (Arenga pinnata) has a hard and impermeable pericarp, which make an obstacle for it’s germination . Scarification of seed is needed to breakdown the physical dormancy of seeds. One of the methods to break the physical dormancy is stratification by soaking seed in to the water in some different temperature level. The aim s of the study were to determine the effectiveness of stratification and to figure out the best water temperature in breaking the dormancy. A Completely Randomized Design (CRD) in four treatments (control, water immersion at 25 ° C , 50 ° C , and 75 ° C) with four replication s was employed as research design. Statistical analysis was conducted using homogenity of variance, variance analysis, and least significant difference tests . The result showed that the water immersion of arenga seed at 25 ° C and 50 ° C resulted in the germination percentage, germination rate and test germination that was comparable to control. Water immersion at 75 ° C reduce d the percentage of germination and germination rate, however the treatment could increase the germination test. Water immersion of arenga seed at 25 ° C , 50 ° C , and 7 5 ° C w ere not effective to break the dormancy of sugar palm seed. Keywords: aren seeds, dormancy, water immersion","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":"27 1","pages":"77-84"},"PeriodicalIF":0.6,"publicationDate":"2020-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85723042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ruth María Grajeda-Rosado, E. M. Alonso-Guzmán, Carlos Escobar-del Pozo, Carlos Javier Esparza-López
{"title":"Simulación del comportamiento térmico en exteriores urbanos correlacionando las variables de calor antropogénico vehicular y orientación","authors":"Ruth María Grajeda-Rosado, E. M. Alonso-Guzmán, Carlos Escobar-del Pozo, Carlos Javier Esparza-López","doi":"10.35429/JSL.2019.21.6.19.33","DOIUrl":"https://doi.org/10.35429/JSL.2019.21.6.19.33","url":null,"abstract":"La complejidad del entorno urbano y su innegable nexo con la ecuación del balance energía, abre las puertas a los investigadores para comprender fenómenos como la Isla de Calor Urbano (ICU). Un factor poco estudiado de la ICU es el calor antropogénico vehicular. Mediante el software Computacional Fluid Dynamics (CFD), se busca comprender el entorno térmico dentro de un cañón urbano, en función de dos variables, el calor producido por la máquina de combustión de los vehículos y la orientación de la calle (Norte Sur y Este Oeste). El análisis de la correlación de estas variables se basa en la información obtenida de la simulación en diferentes estratos de altura, considerando valores constantes como la radiación directa, radiación difusa, emisividad y absortividad de los materiales y una temperatura fija para el capó o cofre del auto, alterando la cantidad de vehículos automotores y la orientación para examinar los diferentes patrones de los perfiles térmicos. La investigación abre la pauta para comprender dicho fenómeno y ser considerado en las simulaciones para la eficiencia energética de los edificios, puesto que impacta directamente en las fachadas de las construcciones y en la determinación de las técnicas pasivas y activas de enfriamiento.","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":"4 1","pages":"19-33"},"PeriodicalIF":0.6,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90203924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Linguistic and Cultural Research of Russian and Korean national staple cuisines (on the material of idioms with the denomination of traditional dishes)","authors":"Kyunghee Baek, O. Spiridonova","doi":"10.30530/jsl.2018.04.23.1.1","DOIUrl":"https://doi.org/10.30530/jsl.2018.04.23.1.1","url":null,"abstract":"","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":"73 1","pages":"1-18"},"PeriodicalIF":0.6,"publicationDate":"2018-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79159575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Semantic features of Prefixation in Russian","authors":"Hyunok Song","doi":"10.30530/jsl.2018.04.23.1.101","DOIUrl":"https://doi.org/10.30530/jsl.2018.04.23.1.101","url":null,"abstract":"","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":"1 1","pages":"101-114"},"PeriodicalIF":0.6,"publicationDate":"2018-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80575051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A comparative study of accusative adverbials : based on Russian and Korean","authors":"Boram Kim","doi":"10.30530/JSL.2018.04.23.1.87","DOIUrl":"https://doi.org/10.30530/JSL.2018.04.23.1.87","url":null,"abstract":"","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":"56 1","pages":"87-99"},"PeriodicalIF":0.6,"publicationDate":"2018-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80541827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Basics of Slovak Language for Korean students who can speak Czech","authors":"Zuzana Šmatláková","doi":"10.30530/JSL.2018.04.23.1.115","DOIUrl":"https://doi.org/10.30530/JSL.2018.04.23.1.115","url":null,"abstract":"","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":"37 1","pages":"115-130"},"PeriodicalIF":0.6,"publicationDate":"2018-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75969037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aplikasi Rhizobium dan Urea pada Pertumbuhan Semai Sengon Laut","authors":"Dingin Prayoga, Melya Riniarti, Duryat Duryat","doi":"10.23960/JSL161-8","DOIUrl":"https://doi.org/10.23960/JSL161-8","url":null,"abstract":"Paraserianthes falcataria is naturally had symbiosis with nitrogen-fixing bacteria (Rhizobium). Urea is fertilizer with high content of nitrogen (46%). The research aimed to study the effect of Rhizobium inoculation on P. falcataria seedling growth; the influence of various concentrations of urea on P. falcataria seedling growth and the interaction of Rhizobium and urea at Rhizobium colonization and seedling growth. The research design was factorial completely randomized design, consisting of two factors, the first factor was the Rhizobium inoculation and the second factor was the doses of urea wich were 0, 2, 4 and 8 grams. The results showed that Rhizobium inoculation could increase the high, diameter, formation of effective nodule, and dry weight of P. falcataria seedling; added 4 grams urea produced the best growth; while Rhizobium inoculation without fertilization produced the highest Rhizobium colonization and the best growth.","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":"148 1","pages":"1-8"},"PeriodicalIF":0.6,"publicationDate":"2018-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78034628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rita Gusmalinda, Bainah Sari Dewi, Niskan Walid Masruri
{"title":"Perilaku Sosial Rusa Sambar (Cervus Unicolor) dan Rusa Totol (Axis Axis) Di Kandang Penangkaran PT. Gunung Madu Plantations Lampung Tengah","authors":"Rita Gusmalinda, Bainah Sari Dewi, Niskan Walid Masruri","doi":"10.23960/JSL1676-85","DOIUrl":"https://doi.org/10.23960/JSL1676-85","url":null,"abstract":"Ex-situ habitat conditions that are different from in-situ habitat will affect its social behavior patterns within the captivity Cage In Gunung Madu Plantations Inc. Sanctuary. The aim of the research was to identify social behavior of Sambar deer (Cervus unicolor) and spotted deer (Axis axis) in Gunung Madu Plantations Inc. Sanctuary, Lampung Tengah. To collect the data, Adlibitum sampling and scan s sampling method was used in the research , which done in January 2016. Social behavior occurs: (1) grooming behavior mostly done by doe N (69.64%) and the smallest carried by deer A, B, G, H, I, J, K, L, M, P, Q (0%). (2) The results shown that rubbing antlers behavior mostly done by K (41.94%) and the smallest carried by deer A, B, C, D, L, M (0%).(3) while interacting with human behavior was done by doe O and P (8.8%) and the lowest is done by doe B (2.9%), away from human interaction highest deer carried by stag 16 , 4% and the lowest carried M male spotted deer, spotted deer male N, O, P and Q of 0.00%. (4) grazing behavior mostly done by doe Q (8.67%) and the smallest carried by stag A (2.58%). Keywords : Social Behavior, Rusa Sambar, Rusa Totol","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":"99 1","pages":"74-84"},"PeriodicalIF":0.6,"publicationDate":"2018-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79191750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analisis Rendemen Atsiri Biji Pala (Myristica fragrans) pada Berbagai Kelas Iintensitas Cahaya Matahari di Desa Batu Keramat Kecamatan Kota Agung Kabupaten Tanggamus","authors":"Erin Agesta Ariandi, Duryat Duryat, Trio Santoso","doi":"10.23960/jsl1625-32","DOIUrl":"https://doi.org/10.23960/jsl1625-32","url":null,"abstract":"Nutmeg tree (Myristica fragrans) is a spice tree with high economic value. Nutmeg fruit was contains essential oil as the results of secondary metabolism process. Adequacy of sunlight, the average distance of intersect trees, the tree species and numbers of intersect trees on photosynthesis and the results of secondary metabolism. The aimed of the study was to analyze the rendemen yield obtained from the nutmeg fruit based on differences sunlight intensity with the differences stratum canopy and determine the factors that influence the yield of nutmeg essential oil. The differences of sunlight intensity was used as a treatment there were three classes of sunlight intensity which were low sunlight intensity (0 - 25%), the moderate sunlight intensity (25 - 75%) and the high sunlight intensity (75 - 100%). The multiple linier regression was employed as data analysis method. The result explained that the best sunlight intensity was the moderate (25 - 75%) with essensial oil rendemen as much 198,2 ml/kg. The result test F shown that in all variable (the sunlight intensity (X 1 ), the average distance of intersect trees (X 2 ), the tree species (X 3 ) and numbers of intersect trees (X 4 )), significanly influened the production of essensial oil. The results of multiple linear regression analysis deliver the equation of Y = 2,133 + 0.037X 1 + 0.275X 2 - 0.226X 3 - 0.049X 4 , the equation show a positive value means direcly proporsional to the result of yield by nutmeg essensial oil and a negative value means the opposite. 60,2% coeficient determination value, which means that the equation could explain 60,2% the variables influence to the nutmeg essensial oil rendemen. Keywords: essential oil, multiple linear regression, Myristica fragrans, sunlight intensity.","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":"38 1","pages":"24-31"},"PeriodicalIF":0.6,"publicationDate":"2018-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87899801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}