Jurnal Ilmu Dasar最新文献_第3页

Stomata of Grass in The Ex Tin-Mining Land in Bangka 邦加前锡矿地草地气孔特征

Jurnal Ilmu Dasar Pub Date : 2023-01-19 DOI: 10.19184/jid.v24i1.19435

Savira Savira, E. Nurtjahya, R. Santi

{"title":"Stomata of Grass in The Ex Tin-Mining Land in Bangka","authors":"Savira Savira, E. Nurtjahya, R. Santi","doi":"10.19184/jid.v24i1.19435","DOIUrl":"https://doi.org/10.19184/jid.v24i1.19435","url":null,"abstract":"Tin-mined land experiences drought, high light intensity, and temperature which is less supportive of plant growth. The study observed the anatomical responses of grasses leaves. This study aims to measure stomatal density, stomatal index, guard cell length, and guard cell width of three grass species that grow naturally in ex tin-mined land and in undisturbed land. Description method carried out based on the paradermal incision resulted in the wholemount method. The results showed each grass species has a different response to their different habitats. The stomatal density of Imperata cylindrica and Paspalum conjugatum collected from ex tin-mined land were higher than to those plants collected from undisturbed land, however the stomatal density in Scleria levis showed the opposite result. Stomatal index of all three species increases in ex tin-mined land were higher than in undistributed land. Guard cell lengths of I. cylindrica and P. conjugatum were smaller than those in undistributed land, but Scleria levis showed the opposite result. Guard cell width of I. cylindrica and S. levis were wider than those in undistributed land, but P. conjugatum showed the opposite result. These responses may reflect their adaptiveness to tin soils.","PeriodicalId":33444,"journal":{"name":"Jurnal Ilmu Dasar","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41903713","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}

引用次数: 0

Analysis of the Death Risk of Covid-19 Patients Using Extended Cox model 新冠肺炎患者死亡风险的扩展Cox模型分析

Jurnal Ilmu Dasar Pub Date : 2023-01-19 DOI: 10.19184/jid.v24i1.33074

Cyndy Romarizka, M. Fatekurohman, I. Tirta

{"title":"Analysis of the Death Risk of Covid-19 Patients Using Extended Cox model","authors":"Cyndy Romarizka, M. Fatekurohman, I. Tirta","doi":"10.19184/jid.v24i1.33074","DOIUrl":"https://doi.org/10.19184/jid.v24i1.33074","url":null,"abstract":"Globally, in 2021, there were 170,051,718 COVID-19 cases and 3,540,437 patients who died. The high mortality rate of patients infected with COVID-19 gives an idea to research the analysis of the factors that influence the death of Covid-19 patients. The data used in this study is data on Covid-19 patients obtained from the Mexican Government, with response variables namely time and status and predictor variables, namely patient laboratory results in the form of a history of illness that has been suffered by Covid-19 patients so that they adopt the extended model to evaluate the data. The data in this study are heterogeneous and large in number so that data clustering is carried out into 3 clusters, namely low emergency clusters, medium emergency clusters and high emergency clusters using K-means clustering. Because the study could not find the factors that influence the death of Covid-19 patients, two clusters were chosen, namely the medium emergency cluster and the high emergency cluster. So that the factors that influence the death of Covid-19 patients in the medium emergency cluster are sorted by the highest hazard ratio, namely pneumonia, old age, renal chronic, diabetes, Chronic Obstructive Pulmonary Disease (COPD), immune system, hypertension, cardiovascular, obesity, gender, and asthma. In the high emergency cluster, sorted by the highest hazard ratio is the immune system, renal chronic, cardiovascular, COPD, tobacco, hypertension, obesity, gender, and pneumonia.","PeriodicalId":33444,"journal":{"name":"Jurnal Ilmu Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47041009","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}

引用次数: 0

The Diversity of Butterfly (Lepidoptera: Rhopalocera) in Triagle of Lakes Lumajang, East Java 东爪哇Lumajang三角湖蝴蝶多样性（鳞翅目：Rhopalocera）

Jurnal Ilmu Dasar Pub Date : 2023-01-19 DOI: 10.19184/jid.v24i1.3817

Afandi Afandi, P. Purwatiningsih, J. Prihatin

引用次数: 0

Species Diversity of Bivalves and Gastropods at the Tanjung Rising Coastal, Bangka Belitung Island 邦加勿里洞岛丹绒上升海岸双壳类和腹足类物种多样性

Jurnal Ilmu Dasar Pub Date : 2023-01-19 DOI: 10.19184/jid.v24i1.30259

Chintya Nurul Fatonah, Restu Ayu Ningtias, M. P. Pertiwi, R. T. Rostikawati

{"title":"Species Diversity of Bivalves and Gastropods at the Tanjung Rising Coastal, Bangka Belitung Island","authors":"Chintya Nurul Fatonah, Restu Ayu Ningtias, M. P. Pertiwi, R. T. Rostikawati","doi":"10.19184/jid.v24i1.30259","DOIUrl":"https://doi.org/10.19184/jid.v24i1.30259","url":null,"abstract":"Tanjung Rising Coastal, located in Dendang Village, Bangka Belitung Islands, has a large variety of substrates and organisms. One of the types of marine life studied is the Mollusk Phylum including the Bivalve and Gastropod classes. To find out the diversity of Bivalvia and Gastropoda, this study was carried out on Tanjung Rising Coastal, Bangka Belitung Islands. The study was conducted in December 2020-August 2021, using belt transect method with purposive sampling technique. Samples were collected at station 1 with a sandy substrate and station 2 with a muddy substrate. The results of this study found 1,372 individuals from the Bivalvia class consisting of 7 families and 12 species, while from the Gastropod class yielded 2,630 individuals consisting of 5 families and 7 species. The diversity and evenness index at both stations is relatively low which means that there are species that dominate, because both stations have good habitats for the dominating species. In addition, temperature, pH, salinity, depth, and strong currents showed good values for Bivalvia and Gastropoda habitat. In summary, Tanjung Rising Beach is still a good habitat for invertebrate animals, especially Bivalvia and Gastropoda.","PeriodicalId":33444,"journal":{"name":"Jurnal Ilmu Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47791563","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}

引用次数: 0

Application of Fuzzy TOPSIS Method as a Decision Support System for Achievement Student Selection 模糊TOPSIS方法在成绩学生选拔决策支持系统中的应用

Jurnal Ilmu Dasar Pub Date : 2023-01-19 DOI: 10.19184/jid.v24i1.16792

Vani Krismo Anggoro, Abduh Riski, A. Kamsyakawuni

{"title":"Application of Fuzzy TOPSIS Method as a Decision Support System for Achievement Student Selection","authors":"Vani Krismo Anggoro, Abduh Riski, A. Kamsyakawuni","doi":"10.19184/jid.v24i1.16792","DOIUrl":"https://doi.org/10.19184/jid.v24i1.16792","url":null,"abstract":"Achievement student selection aims to appreciate students who have achieved an achievement, both in the academic and non-academic fields. This activity is carried out in stages, starting from departments, faculties, and universities, to the national level. In the selection process, several criteria were used: GPA, scientific work, presentation, English, and achievements were featured and involved several juries to avoid subjectivity in the assessment. This study aims to get the best results from the decision support system in Achievement student election in the Mathematics Department of Jember University. Therefore, we need the fuzzy TOPSIS method to avoid and minimize problems and to make multi-criteria decision-making easier. This study's ranking results were obtained from the fuzzy TOPSIS method and standardized assessment method (based on higher education guidelines). From the four candidates who participated in this selection, the two methods give different results in the last two ranks. The fuzzy TOPSIS method ranking shows the results sequentially for candidates B, C, A, and D. In contrast, and the standardized assessment method ranking shows the results sequentially for candidates B, C, D, and A. This difference is caused by the value of the criteria factor and the weight of the candidate criteria, but the fuzzy TOPSIS method is simpler than the standardized assessment method. So that it can be recommended for the next period achievement student election at the department, faculty, or university level.","PeriodicalId":33444,"journal":{"name":"Jurnal Ilmu Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44344031","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}

引用次数: 0

Diversity of Echinoderms in Drini Beach Gunung Kidul, Yogyakarta 日惹古农基都德里尼海滩棘皮动物的多样性

Jurnal Ilmu Dasar Pub Date : 2023-01-19 DOI: 10.19184/jid.v24i1.30097

Intan Mufida, M. P. Pertiwi, R. T. Rostikawati

{"title":"Diversity of Echinoderms in Drini Beach Gunung Kidul, Yogyakarta","authors":"Intan Mufida, M. P. Pertiwi, R. T. Rostikawati","doi":"10.19184/jid.v24i1.30097","DOIUrl":"https://doi.org/10.19184/jid.v24i1.30097","url":null,"abstract":"Research on the diversity of echinoderms at Drini Beach, Gunung Kidul, Yogyakarta has been conducted from December 2020 to July 2021. This study aimed to determine the Echinoderm diversity index. The method sampling technique used belt transect with determination by purposive sampling with three stations in the intertidal zone based on substrate variations. Station 1 had coral substrate type, station 2 had seagrass substrate type, and sand substrate type for station 3. The sample in this study was the species of Echinoderms found in the station area. After sampling, it obtained 7 species of Echinoderms consisting of 3 classes, classified into 4 orders, and 6 families. The diversity index at all stations is low, followed by a low evenness value and a high dominance value. The species Ophiocoma erinaceus was dominant at stations one and two, while the species Tripneustes gratilla was dominant at stations three. Moreover, the most common habitat for echinoderms is This is due to the availability of abundant food, laying places for echinoderms, and shelter to avoid predators. In addition, it is also supported by temperature, pH, salinity, strong currents, and a good depth for Echinoderm habitat","PeriodicalId":33444,"journal":{"name":"Jurnal Ilmu Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43853849","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}

引用次数: 0

Effects of Carbonization Temperature from Activated Carbon of Water Hyacinth on the Flux and Its Ability on Iron Removal 水葫芦活性炭炭化温度对助熔剂及其除铁能力的影响

Jurnal Ilmu Dasar Pub Date : 2023-01-19 DOI: 10.19184/jid.v24i1.30710

Wenny Maulina, Frendi Wahyudi Priyanto, A. Arkundato

{"title":"Effects of Carbonization Temperature from Activated Carbon of Water Hyacinth on the Flux and Its Ability on Iron Removal","authors":"Wenny Maulina, Frendi Wahyudi Priyanto, A. Arkundato","doi":"10.19184/jid.v24i1.30710","DOIUrl":"https://doi.org/10.19184/jid.v24i1.30710","url":null,"abstract":"The synthesis of activated carbon derived from water hyacinth has been successfully carried out as an iron adsorbent in a laboratory-scale water filter design system. In this article, activated carbon derived from water hyacinth is made through a carbonization process at 400°C and 500°C with NaOH as an activating agent. This activated carbon derived from water hyacinth acts as a filter media for purifying well water by assessing the flux, pH and iron removal efficiency before and after filtration. The results showed that the use of activated carbon derived from water hyacinth with a carbonization temperature of 500°C resulted in a water flux value greater than the carbonization temperature of 400°C. The pH value showed no difference between the use of activated carbon derived from water hyacinth (at a carbonization temperature 400°C and 500°C) before and after the filtration process, which was 7.5. Meanwhile, the effectiveness of activated carbon derived from water hyacinth at a carbonization temperature of 500°C as a filtration medium is more optimal in reducing iron levels compared to the use of activated carbon at a carbonization temperature of 400°C with percentage efficiency up to 98.09%.","PeriodicalId":33444,"journal":{"name":"Jurnal Ilmu Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44735431","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}

引用次数: 0

Antioxidant Assay and Total Flavonoid Determination of Ethanolic Extract of Walnut (Canarium indicum L.) Leaves and Its Fractions 核桃叶及其组分乙醇提取物抗氧化性及总黄酮含量测定

Jurnal Ilmu Dasar Pub Date : 2023-01-19 DOI: 10.19184/jid.v24i1.23017

Lukmanto Lukmanto, Nadila Ikhda Ramadhani Fadhila, L. Wulandari, E. Puspitasari

{"title":"Antioxidant Assay and Total Flavonoid Determination of Ethanolic Extract of Walnut (Canarium indicum L.) Leaves and Its Fractions","authors":"Lukmanto Lukmanto, Nadila Ikhda Ramadhani Fadhila, L. Wulandari, E. Puspitasari","doi":"10.19184/jid.v24i1.23017","DOIUrl":"https://doi.org/10.19184/jid.v24i1.23017","url":null,"abstract":"Antioxidants are compounds that inhibit free radicals. Many plants have antioxidant activity because they contain antioxidant compounds such as flavonoids. This study aimed to evaluate the antioxidant activity, phytochemical contents, total flavonoid content and to establish the relationship of total flavonoid content and antioxidant activity of extract and fractions of walnut (Canarium indicum L.) leaves. Antioxidant activity of ethanolic extract, n-hexane fraction, ethyl acetate fraction, and ethanolic-water fraction of walnut leaves was examined by using the DPPH method and determination of total flavonoid content was determined spectrophotometrically. The results showed that antioxidant activity of ethanolic extract, n-hexane fraction, ethyl acetate fraction, and ethanolic-water fraction based were 25.294 ± 0.055; 175.245 ± 0.4999; 20.135 ± 0.009; and 28.806 ± 0.0424 μg/ml, respectively. The phytochemical content of ethanol extract of walnut leaves are saponins, flavonoids, tannins, and polyphenols. The total flavonoid content of ethanolic extract, n-hexane fraction, ethyl acetate fraction and ethanolic-water fraction were 2.624 ± 0.012; 0.499 ± 0.023; 3.846 ± 0.006; and 1.596 ± 0.006 gram quercetin equivalent/gram extract, respectively. Correlation between antioxidant activity and total flavonoid content revealed that 63.2 % of antioxidant activity was influenced by the presence of flavonoid compounds.","PeriodicalId":33444,"journal":{"name":"Jurnal Ilmu Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48752841","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}

引用次数: 0

The Utilization of Serratia marcescens to Increase Phosphate-Availability and Production of Cucumber in Alfisols 利用粘质沙雷氏菌提高土壤中黄瓜磷的有效性和产量

Jurnal Ilmu Dasar Pub Date : 2023-01-19 DOI: 10.19184/jid.v24i1.29663

Muhammad Majid Abdillah, T. Setiawati

{"title":"The Utilization of Serratia marcescens to Increase Phosphate-Availability and Production of Cucumber in Alfisols","authors":"Muhammad Majid Abdillah, T. Setiawati","doi":"10.19184/jid.v24i1.29663","DOIUrl":"https://doi.org/10.19184/jid.v24i1.29663","url":null,"abstract":"Serratia marcescens is a bacterium that can dissolve phosphate (P) in soil, increasing phosphate availability and allowing plants to use it to support plant growth. P-available in the soil is generally low, including in Alfisols, due to the formation of bonds with Al, Fe, Ca, Mg, and other cations, which is influenced by soil pH or clay mineral adsorption. Cucumber plants require adequate nutrients, including P nutrients, for optimal growth and production. The study was carried out in a greenhouse using a completely randomized design (CRD) with four treatments and five replications. The treatments were S. marcescens bacterial solution concentrations of P0 (0 ml); P1 (20 ml); and P2 (20 ml); P3 (60 ml) bacterial colony density: 33x109 cfu/ml. According to the findings of the study, S. marcescens inoculation had a significant effect on increasing soil pH by 6,16, P-total concentration of 41,62 mg/100g, P-available concentration of 28,39 ppm, P-tissue concentration shoot and root were 0,30% and 0,78%, respectively, and P-root uptake of 2,27 g/pot. Similarly, S. marcescens inoculation significantly affected the plant height of 138,72 cm, root volume of 43 ml, and root length of 59,92 cm compared to the control treatment.","PeriodicalId":33444,"journal":{"name":"Jurnal Ilmu Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46547723","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}

引用次数: 0

Production of The Entomopathogenic Fungi Beauveria bassiana using Starch Rich Substrate and Its Infectivity against Tribolium castaneum 富淀粉底物制备球孢白僵菌及其对castaneum的侵染性

Jurnal Ilmu Dasar Pub Date : 2022-08-04 DOI: 10.19184/jid.v23i2.21435

L. Afifah, Dhiya Mutsla Afifah, Tatang Surjana, Anik Kurniati, R. Maryana

{"title":"Production of The Entomopathogenic Fungi Beauveria bassiana using Starch Rich Substrate and Its Infectivity against Tribolium castaneum","authors":"L. Afifah, Dhiya Mutsla Afifah, Tatang Surjana, Anik Kurniati, R. Maryana","doi":"10.19184/jid.v23i2.21435","DOIUrl":"https://doi.org/10.19184/jid.v23i2.21435","url":null,"abstract":"The entomopathogenic fungi of Beauveria bassiana is known to infect the Tribolium castaneum pest. Mass production of B. bassiana is currently carried out using alternative media, the amount of conidia produced on alternative media is quite large and can tolerate temperature. This research aims to select alternative media for the propagation of B. bassiana to gain germination, conidia density, and virulence of the best alternative media concentration against the pest of T. castaneum. The method used was a compiled in the Completely Randomized Design (RAL) at all stages of research. In the first stage of alternative media selection consisting of 4 treatments in 6 replications: A (PDA); B (peanuts); C (soybean); D (old coconut meat). The second stage of alternative media infectivity consisting of 5 treatments in 5 replications: positive control (synthesis insecticide); negative control (aquades); 107; 108; 109 spores/ml. The results achieved that alternative media selection given a highest colony diameter is 4.39 cm on soybean, the highest conidia density is 5,61 x 108 spores/ml on peanuts, the highest germinating power is 31.76% on peanuts. Furthermore, the infectivity of alternative media obtained on peanut media had a significant effect on the mortality of T. castaneum (36.00%) at a concentration of 109 spores/ml, LC50 was obtained at 5.6 x 105 spores/ml, and LT50 within 5.42 days. The results indicated that the peanut media was a good propagation medium of B. bassiana and it was necessary to find other alternatives to increase the infectivity of B. bassiana against T. castaneum.","PeriodicalId":33444,"journal":{"name":"Jurnal Ilmu Dasar","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49275724","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}

引用次数: 0