Journal of Symbolic Logic最新文献_第4页

Utilization of Wood Vinegar as a Natural Preservative for Sengon Wood (Falcataria moluccana Miq.) against Fungal Attack (Schizophyllum commune Fries) 木醋作为天然防腐剂对松木(Falcataria moluccana Miq.)抗真菌(Schizophyllum commune Fries)的应用

IF 0.6 3区数学

Journal of Symbolic Logic Pub Date : 2021-05-06 DOI: 10.23960/JSL29302-313

R. Anggraini, Jauhar Khabibi, M. Ridho

{"title":"Utilization of Wood Vinegar as a Natural Preservative for Sengon Wood (Falcataria moluccana Miq.) against Fungal Attack (Schizophyllum commune Fries)","authors":"R. Anggraini, Jauhar Khabibi, M. Ridho","doi":"10.23960/JSL29302-313","DOIUrl":"https://doi.org/10.23960/JSL29302-313","url":null,"abstract":"Most wood supplied from forests currently has a low level of durability and vulnerable to wood-destroying organisms attacks. Sengon wood ( Falcataria moluccana Miq.) is classified as low durable class wood (class IV-V); hence wood preservation is needed to protect from the attacks of wood-destroying organisms. One of the eco-friendly materials that can be used for wood preservation is wood vinegar. This study aims to analyze the influence of wood vinegar from tembesu ( Fagraea fragrans ) and rengas ( Gluta renghas ) on the durability of sengon wood against Schizophyllum commune Fries fungus. The results showed that wood parts and types of wood vinegar significantly affected preservative retention, absorption, penetration, and weight loss. Some of the chemical compounds contained in tembesu and rengas wood vinegar can inhibit the growth of fungi: (1) acetic acid (CAS) ethylic acid, (2) 2-propanone, 1-hydroxy- (CAS) acetol, (3) phenol, 2-methoxy- (CAS) guaiacol, and (4) phenol (CAS) izal. Preservation of wood using tembesu and rengas wood vinegar with a concentration of 70% could increase the resistance of sengon wood and improve sengon wood’s durability into very resistant (durability class I) against S. commune fungus attacks. Keywords: Falcataria moluccana , wood durability, wood parts, wood vinegar","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2021-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86761867","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}

引用次数: 3

Efficacy of Liquid Smoke Produced from Medang Wood (Cinnamomum sp.) against Schizophyllum commune 梅当木液烟对裂叶虫的防治效果研究

IF 0.6 3区数学

Journal of Symbolic Logic Pub Date : 2021-05-06 DOI: 10.23960/JSL29269-279

Rizka Diah Permana, H. A. Oramahi, F. Diba

{"title":"Efficacy of Liquid Smoke Produced from Medang Wood (Cinnamomum sp.) against Schizophyllum commune","authors":"Rizka Diah Permana, H. A. Oramahi, F. Diba","doi":"10.23960/JSL29269-279","DOIUrl":"https://doi.org/10.23960/JSL29269-279","url":null,"abstract":"The efficacy of liquid smoke obtained from medang wood ( Cinnamomum sp.) against Schizophyllum commune fungus was evaluated. This study aims to evaluate the antifungal properties of liquid smoke from medang against S. commune fungus . Potato Dextrose Agar (PDA) medium was used to determine the efficacy of the liquid smoke of medang wood on S. commune fungus growth. Three kinds of liquid smoke were obtained from the pyrolysis of medang wood at 370, 400, and 430°C. The e fficacy of liquid smoke from medang wood for antifungal is a factorial 3 by 4 in a completely randomized design; the first factor was pyrolysis temperature of liquid smoke from medang (370, 400, and 430°C), and the second factor was the treatment of concentration of liquid smoke from medang wood ( 0, 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0%, v/v ). The results showed that pyrolysis temperature affected liquid smoke from medang, and the concentration of liquid smoke was significantly different for inhibition of fungal growth. The results indicated that the pyrolysis temperature of liquid smoke production and the concentration of liquid smoke had a significant effect on S. commune fungus growth inhibition. Medang wood liquid smoke effectively inhibited the growth of S. commune fungus about 98.57% at a concentration of 2.5% with liquid smoke pyrolysis temperature used is 430 ° C . Keywords: efficacy, inhibition of fungal growth, liquid smoke, medang wood, Schizophyllum commune","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2021-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83418364","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}

引用次数: 1

The Involvement of Local Community in Mangrove Forest Conservation in West Kalimantan 西加里曼丹当地社区参与红树林保护

IF 0.6 3区数学

Journal of Symbolic Logic Pub Date : 2021-05-01 DOI: 10.23960/JSL29291-301

E. Roslinda, Lilis Listiyawati, Ayyub Ayyub, Farih Al Fikri

{"title":"The Involvement of Local Community in Mangrove Forest Conservation in West Kalimantan","authors":"E. Roslinda, Lilis Listiyawati, Ayyub Ayyub, Farih Al Fikri","doi":"10.23960/JSL29291-301","DOIUrl":"https://doi.org/10.23960/JSL29291-301","url":null,"abstract":"Mangrove forest conservation on the coast of West Kalimantan has been successfully carried out and saved the environment from coastal abrasion (ecological benefit) and provided economic benefits for the community. This study aims to describe the role of the community in mangrove conservation activities in the coastal areas of West Kalimantan. S urvey methods were used in this research. The data was collected through interviews based on questionnaires and in-depth interviews. Data processing was conducted by calculating the percentage and then analyzed by tabulation. Mangrove conservation activities are based on community experiences in saving the environment, boosting economic activities, and obtaining benefits from conservation results. The involvement of the local community uses the bottom-up approach, starting from planning activities, implementation, utilization, and evaluation. In general, the local community ’ s level of involvement is still at the information and consultation stage. The involvement of the local community as an individual varies greatly, from those who are only involved as part of formality to the level of being actively involved, having decision-making authority, and being able to negotiate and deal directly with capital sources. It occurs due to the varying capacity of each individual. Keywords: forest conservation, local community, mangrove","PeriodicalId":17088,"journal":{"name":"Journal of Symbolic Logic","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87888411","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}

引用次数: 6

State and prospects of medical interpretation in medical institutions in South Korea 韩国医疗机构医学口译现状与展望

IF 0.6 3区数学

Journal of Symbolic Logic Pub Date : 2021-04-30 DOI: 10.30530/JSL.2021.04.26.1.211

Na-Young Kim

引用次数: 0

A Study on Linguistic reality in A. Sukhovo-Kobylin’s play, «The Death of Tarelkin» - Man facing absurdity - 苏霍沃-科比林戏剧《塔列尔金之死——面对荒诞的人》中的语言现实性研究

IF 0.6 3区数学

Journal of Symbolic Logic Pub Date : 2021-04-30 DOI: 10.30530/JSL.2021.04.26.1.227

Y. Ham

引用次数: 0

Homonymy and Polysemy in Verbal Aspect 词性方面的同音与多义

IF 0.6 3区数学

Journal of Symbolic Logic Pub Date : 2021-04-30 DOI: 10.30530/JSL.2021.04.26.1.157

Ilona Starý Kořánová

引用次数: 0

A Study on The Ethno-Linguistic Situation of the Gorno-Badakhshan Autonomous Oblast’(Province) of Tajikistan 塔吉克斯坦戈尔诺-巴达赫尚自治州(省)民族语言状况研究

IF 0.6 3区数学

Journal of Symbolic Logic Pub Date : 2021-04-30 DOI: 10.30530/JSL.2021.04.26.1.21

K. Chung

引用次数: 0

Russian riddles as a means of forming linguistic and sociocultural competence among foreign students 俄语谜语是培养外国学生语言和社会文化能力的一种手段

IF 0.6 3区数学

Journal of Symbolic Logic Pub Date : 2021-04-30 DOI: 10.30530/JSL.2021.04.26.1.93

Seong Goo Park

引用次数: 0

The formation of phraseological competence with foreign students at the Russian as a foreign language classes (from the experience of teaching phraseological units in a Korean audience) 对外俄语课堂上与外国学生的词汇能力的形成(从对韩国听众进行词汇单元教学的经验)

IF 0.6 3区数学

Journal of Symbolic Logic Pub Date : 2021-04-30 DOI: 10.30530/JSL.2021.04.26.1.183

Yana Ten

引用次数: 0

Compound Adjectives with Derivational Suffixes in Russian 俄语中带有派生后缀的复合形容词

IF 0.6 3区数学

Journal of Symbolic Logic Pub Date : 2021-04-30 DOI: 10.30530/JSL.2021.04.26.1.129

Hyunok Song

引用次数: 0