JURNAL SAINS TEKNOLOGI & LINGKUNGAN最新文献

{"title":"Pengaruh Kadar Aspal Efektif dan Tebal Selimut Aspal Terhadap Proporsi Rongga pada Campuran Laston","authors":"Ratna Yuniarti, M. Mahendra, H. Hasyim, R. Rohani, I. S. Sideman","doi":"10.29303/jstl.v9i1.410","DOIUrl":"https://doi.org/10.29303/jstl.v9i1.410","url":null,"abstract":"In the mixing process between asphalt and aggregate, absorption of asphalt by the aggregate occurs through the pores of the aggregate. The volume of asphalt not absorbed by the aggregate can be defined as effective asphalt content which determines the percentage of airspaces in the compacted mix. The proportion of voids formed in the mixture contributes to the durability of the mixture against temperature and climate conditions. This study aims to examine the effect of effective asphalt content and the asphalt film thickness on the voids proportion in asphalt mixture. Based on the analysis, it can be concluded that the particle size distribution of the aggregate affects the total surface area of the aggregate in the mixture and the pores of the aggregate affect the effective percent of asphalt content. Aggregate with a small grain size produced a larger total surface area of aggregate. Meanwhile the use of aggregate with small pores produced a higher effective percent of asphalt content. The higher the effective asphalt content and the asphalt film thickness, the larger the voids in mineral aggregate and the voids filled with bitumen. In contrast, the voids in the mixture decreases with increase the effective asphalt content and the asphalt film thickness. In all the voids proportions analyzed, the effective asphalt content and the asphalt film thickness have a very significant effect.","PeriodicalId":274989,"journal":{"name":"JURNAL SAINS TEKNOLOGI & LINGKUNGAN","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116767604","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}

{"title":"Struktur Komunitas Gastropoda pada Kawasan Mangrove Pantai Gerupuk Lombok Tengah","authors":"Hikmatul Hasanah, Agus Ramdani, A. Syukur","doi":"10.29303/jstl.v9i1.419","DOIUrl":"https://doi.org/10.29303/jstl.v9i1.419","url":null,"abstract":"he purpose of this study was to determine the community structure and distribution pattern of gastropod in the mangrove area of Gerupuk Beach, Central Lombok. The field survey was conducted using the quadratic transect method and free collection in October-November 2022. The purposive random sampling was used in this study. The results showed there were 591 individuals Gastropod in all stations consisted of 4 species of Gastropod 7 families, namely Assimenia brevicula, Cassidula aurifelis, Cassidula nucleus, Littoraria carnifera, Littoraria angulifera, Littoraria scabra, Nerita undata, Cerithidea alata, Cerithidea quoyii, Telescopium Telescopium, Terebralia sulcata, Terebralia sp., Chicoreus capucinus and Nassarius reevanus. The highest abundance was found at station III with a value of 1.48 individuals per m2, where the highest abundance of gastropod species was Cerithidea alata. The diversity (H ') obtained from the three stations ranged from 1.476 to 1.996 which was categorized as medium level. Evenness index (E) from of 0.559-0.756 which were in the relatively even category. Furthermore, Domination index (C) of Gastropods range from 0.255-0.355 for low dominance. Gastropod distribution patterns in the Gerupuk Beach mangrove ecosystem are clustered and uniform. It is concluded that based on the biological indices the structure of the Gastropods community in the mangrove area of Gerupuk Beach it was in normal condition.","PeriodicalId":274989,"journal":{"name":"JURNAL SAINS TEKNOLOGI & LINGKUNGAN","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116154823","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}

{"title":"Analisis Karakteristik Aliran Irigasi Perforasi Pada Lahan Datar","authors":"","doi":"10.29303/jstl.v9i1.424","DOIUrl":"https://doi.org/10.29303/jstl.v9i1.424","url":null,"abstract":"Perforation irrigation is a unidirectional beam irrigation system that can be used for crop irrigation on dry land, due to the efficient use of water and the ability to wet land with a limited area. Therefore, the perforation irrigation system needs to be studied further in relation to the area of land that can be irrigated and the distribution of discharge to each perforated pipe. By testing several variations of the water level, the perforation irrigation emission capability will be obtained in the form of irrigation distribution, uniformity, emission capability and discharge amount used in irrigation on flat land. This study aims to determine the perforation irrigation capacity on flat land, the distribution of irrigation and the amount of discharge required. The test was carried out on three perforated pipes made of ½” PVC as lateral pipes, three transmission pipe length variations, such as 0.8m, 1m, and 1.2m with a distance between the perforations of 60 cm. The source of irrigation water comes from a 3 m tall tower with a capacity of ± 200 𝑙𝑖𝑡𝑒𝑟. The test uses three variations of head height, namely h1 350 cm, h2 360 cm, h3 370 cm and h4 380 cm. The results showed that the perforation irrigation jet length was around 100cm -120 cm, the uniformity of CU irrigation was above 97% with a total discharge on h1 QT = 0.689 lt/s, h2 QT = 0.690 lt/s , h3 QT = 0.695 lt/s and on h4 QT = 0.701 lt/s. While the range of flow rates for perforation 1 pipe Q1 (0.42 lt/s – 0.429 lt/s), perforation 2, Q2 (0.13 -0.145 lt/s) and perforation 3, Q3 (0.129 - 0.135 lt/s)","PeriodicalId":274989,"journal":{"name":"JURNAL SAINS TEKNOLOGI & LINGKUNGAN","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122006337","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}

{"title":"Skrining Fitokimia Hasil Ekstraksi Bertingkat Daun Jengkol (Archidendron jiringa) dan Aplikasinya Sebagai Zat Antijamur","authors":"Mohammad Jihad Madiabu, Ilyas Taufik Abdul Aziz, S. Supriyono, Ariefiangga Pratama Putra, Anom Cahyotomo, Hanum Sekar Panglipur","doi":"10.29303/jstl.v9i1.403","DOIUrl":"https://doi.org/10.29303/jstl.v9i1.403","url":null,"abstract":"Phytochemical screening and antifungal activity test of jengkol leaf (Archidendron jiringa) extract have been carried out. The purpose of this research is determine secondary metabolite content and antifungal activities of jengkol leaf extract. Extraction of jengkol leaf was conducted with sequential extraction technique with various solvent such as hexane, ethyl acetate and methanol respectively. FTIR characterization of jengkol leaf extract show the presence of O-H, C-H C-O and C=O groups. Based on phytochemical sceening test, jengkol leaf extract contains phenolic, flavonoid, tannin, sterol, and alkaloid compound. Antifungal test was investigated on Candida albicans by disc diffusion methods. Jengkol leaf extract that was obtained from methanol extraction show inhibiton zone to Candida albicans of (1,42 ± 0,16) mm, while extraction with ethyl acetate and hexane aren’t show inhibition zone. Antifungal test result showed that jengkol leaf extract has potential as antifungal agent","PeriodicalId":274989,"journal":{"name":"JURNAL SAINS TEKNOLOGI & LINGKUNGAN","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123345514","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}

{"title":"Survei Demam Secara Massal Berhasil Mengendalikan Wabah Malaria Di Pulau Bungin Kabupaten Sumbawa Nusa Tenggara Barat : Pelajaran Tentang Pentingnya Deteksi Agresif Di Salah Satu Pulau Terpenting Di Dunia","authors":"Philip Habib, Ahmad Taufik S, Adnanto Wiweko, Didit Yudhanto, Mohammad Rizki, Lalu Hamri Fikri, M. Mulyanto","doi":"10.29303/jstl.v9i1.427","DOIUrl":"https://doi.org/10.29303/jstl.v9i1.427","url":null,"abstract":"Bungin Island is a very small island where population density is high, with a total population of 3,287 in a 2 kilometer-square area. The Annual Parasite Index (API) on Bungin Island in 2006 was 16,0 per thousand people. Outbreaks of malaria in Bungin Island are correlated with several controllable factors. The goal of this study is to aggressively detect and treat malaria, as well as to identify the factors that contribute to malaria outbreaks. Data was collected from the resident of Bungin Island who came to Sub-Primary Health Center Bungin Island in October 1, 2007. The data collection when outbreak malaria occurs, consisted of anamnesis, physical examination and test for type of malaria. A finger prick blood sample was collected and tested with  rapid diagnostic test (RDT) for type of plasmodium. Treatment base on standard treatment for malaria from Indonesian Health Department was given to the subjects were malaria positive.  The total 201 subjects was tested by RDT, in which 93 positive malaria (46,27%). Most of them were infected by Plasmodium vivax (97.85%) and only 2 subjects were infected by Plasmodium falciparum (2.15%). There were 23 subjects (24.27%) showed malaria positive without clinical symptoms. The subjects positive malaria with clinical symptoms, 8.57% were found to have spleenomegaly and  7.14% were found to have hepatomegaly. Incidence of malaria decrease siginifantly in few week after aggresive detection and appropriate treatment. A few years later, malaria incidence was disappeared. The incidence of malaria in Bungin Island was high when an outbreak occured. Aggressive detection with mass blood survey could find asymptomatic malaria in the population and appropriate treatment would decrease positive malaria until it disappeared.","PeriodicalId":274989,"journal":{"name":"JURNAL SAINS TEKNOLOGI & LINGKUNGAN","volume":"229 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114045678","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}

{"title":"Gambaran Imunohistokimia Synaptophisin pada Neuron Otak Tikus Pasca Mengalami Cedera Otak Traumatik","authors":"Rohadi Rohadi, Bambang Priyanto, Lale Maulin Prihatina, D. Zulkarnaen, Januarman Januarman, Bayu Putra Wibowo, Muzzaki Hasnan Ali, Gibran Ihza Sukma","doi":"10.29303/jstl.v9i1.420","DOIUrl":"https://doi.org/10.29303/jstl.v9i1.420","url":null,"abstract":"TBI is mechanically followed by pathomechanisms that cause damage to surrounding neurons, such as cell and tissue necrosis, inflammation, cerebral edema, breakdown of the blood-brain barrier, and hyperthermia. The more severe the brain injury, the greater the impact on the inflammatory response. Therefore, this study aims to determine the histopathological description of edema in rat brain cells after TBI and to analyze the relationship between differences in trauma burden and histopathological features of brain cell inflammation, hematoma, and edema in mice after traumatic brain injury. This study uses an experimental observational-analytical research design. Sprague-Dawley mice were used as research subjects and divided into four cluster groups (and one control group) with varying trauma-loading interventions. The trauma loads given were 20 grams, 40 grams, 60 grams, and 80 grams. Following the trauma load application, the mice's brains were biopsied one hour after the intervention to observe histopathological features of inflammatory markers (synaptophysin) and brain cell edema. The data were then analyzed using the SPSS program. Twenty mice were included in this study. The results of the study showed that there was a mean load of 50 grams, and there is a mean synaptophysin percentage of 23.5%. There was a significant relationship between differences in trauma load and the percentage of post-TBI rat brain cell edema (p <0.001). There is a perfect and strong correlation between differences in trauma load and the percentage of synaptophysin (p=0.926). It was discovered that as the trauma load increased, there was a growing percentage of edema and inflammation in the histopathological features of the mice’s brains. There was a significant difference between the severity of trauma and the percentage of brain cell inflammation and edema one hour after brain injury in mice. The more severe the level of trauma given, the higher the percentage of inflammation and edema that occurs in rat brain cells. The result is especially notable since the inflammation and edema is found one hour within injury.","PeriodicalId":274989,"journal":{"name":"JURNAL SAINS TEKNOLOGI &amp; LINGKUNGAN","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122103099","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}

{"title":"Pembuatan Nanopartikel CaO dari Cangkang Telur Ayam Menggunakan Ekstrak Etanol Daun Salam (Syzygium polyanthum)","authors":"Mellida Yani, Gladys Ayu Paramita Kusumah Wardhani, A. Taufiq","doi":"10.29303/jstl.v9i1.408","DOIUrl":"https://doi.org/10.29303/jstl.v9i1.408","url":null,"abstract":"Chicken  eggshell  waste  contributes  to  environmental because it have CaCO3 content. Calcium  carbonate  in chicken  eggshells  is  used  as  a  basic  material  in  the  synthesis  of  CaO  nanoparticles  through  a calcination process at 900oC. CaO nanoparticles have unique characteristics that make them are needed for various fields of application such as environment, materials, and biomedicine. In addition, the synthesis of these nanoparticles can reduce the use of hazardous and environmentally friendly chemicals. This method has been widely used as an alternative method, one of which  utilizes  secondary  metabolites found  in  ethanol extract of  bay  leaves as reducing  and stabilizing agents. This research was conducted with 3 volume variations of bay leaf extract with calcined eggshell base materials, namely 3:7, 5:5, and 7:3 (v/v) to determine the effect on the resulting particle   size.   Characterization   of   CaO   nanoparticles   using   UV-Vis,   FTIR,   and  SEM.   The nanoparticles obtained were in the form of white fine powder. The characterization results show the maximum absorption of CaO nanoparticles at λ 215 - 270 nm. Based on the FTIR spectra, Ca-O bonds can be identified in the three variations at 712 cm-1  dan 514 cm-1  and  874 cm-1  shows Ca-O-Ca bond. The resulting material has a flake shape and agglomeration morphology with an average particle size range of 43-498 nm.","PeriodicalId":274989,"journal":{"name":"JURNAL SAINS TEKNOLOGI &amp; LINGKUNGAN","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116251571","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}

{"title":"Steroid Induced Diabetes Mellitus: An Overview","authors":"Indah Sapta Wardani","doi":"10.29303/jstl.v9i1.441","DOIUrl":"https://doi.org/10.29303/jstl.v9i1.441","url":null,"abstract":"Glucocorticoids are often used as immunosuppressant and anti-inflammatory therapy in various medical conditions. In addition to providing clinical benefits, glucocorticoids have various side effects, one of which is related to steroid-induced diabetes mellitus (SIDM). Steroid-induced diabetes mellitus can be a new onset or an exacerbation of hyperglycemia in patients who have previously been diagnosed with DM. Acute and chronic hyperglycemia due to steroids can have an impact on lengthening hospitalization, infectious complications, decreased response to therapy and increased mortality. The challenges of managing steroid-induced diabetes mellitus vary widely. Understanding of pathophysiology, risk factors, diagnosis and therapy can add insight regarding the comprehensive management of steroid-induced DM","PeriodicalId":274989,"journal":{"name":"JURNAL SAINS TEKNOLOGI &amp; LINGKUNGAN","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134564349","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}

{"title":"Efektivitas Pengelolaan Hutan Kemasyarakatan Pada Berbagai Strata Luasan Lahan Di Kawasan Hutan Sesaot Lombok Barat","authors":"M. Markum, A. C. Ichsan, Husni Idris","doi":"10.29303/jstl.v9i1.423","DOIUrl":"https://doi.org/10.29303/jstl.v9i1.423","url":null,"abstract":"What is the exact area of community forestry (HKm) land that can be effectively managed by farmers? The objectives of the study were 1) to identify HKm land management practices by farmers based on vegetation density and income at various strata of land area, 2) to analyze the effectiveness of HKm land management in various strata of land area, 3) to analyze the factors that influence the effectiveness of land management in various strata. strata of land area The method used in this research is descriptive through a series of observations, interviews and Focus Group Discussions. The number of respondents interviewed was 42 people. The variables studied included environmental aspects such as plant density, economic aspects in the form of production values and effectiveness assessment using scoring techniques, with the decision criteria being very effective, effective, quite effective, less effective and ineffective. Based on the results of the study, it can be concluded that (1) plant density in various land strata in strata I (<0.25 ha), strata II (0.25-0.5), strata III (>0.5-1ha) and Strata III (>0.5-1ha). IV(> 1 ha) were 382, 387,389 and 378 plants/ha, respectively. Meanwhile, the income of each farmer is (Rp/ha/year): 46,494,744; 25,479,880; 39,704,174 and 31,358,023. From various land strata, the level of effectiveness of the management is categorized as effective for land strata I, III, and IV and quite effective for land strata II. The factor that influences the effectiveness of land management is land area, where there is a tendency that the smaller the land area, the more effective the management. Other factors are the application of agroforestry patterns, other land tenure, availability of labor and age of farmers. Suggestions put forward for land distribution policies should consider the area between 0.5 - 1 ha, because it has provided sufficient income for farmers.","PeriodicalId":274989,"journal":{"name":"JURNAL SAINS TEKNOLOGI &amp; LINGKUNGAN","volume":"9 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116931319","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}

{"title":"Hubungan Perbedaan Beban Trauma Dengan Gambaran Histopatologi Edema Sel Otak Tikus Pasca Cedera Otak Traumatik","authors":"Bayu Putra Wibowo, Rohadi Rohadi, Lale Maulin Prihatina, Zikrul Haikal","doi":"10.29303/jstl.v9i1.428","DOIUrl":"https://doi.org/10.29303/jstl.v9i1.428","url":null,"abstract":"Traumatic brain injury is a condition of the head structure that is impacted or traumatized, causing disruption of brain function. This condition is one of the types of injuries that have the most severe effects on disability and death. Globally, 60 million people suffer from traumatic brain injury each year, with the most common complication being intracranial hemorrhage which increases the risk of death and disability. The incidence of traumatic brain injury is most common in the age group of children (0 - 4 years), adolescents and young adults (15-24 years) and the elderly (> 65 years). Where the most common causes are falls and vehicle accidents. This study aims to determine the histopathological description of edema in rat brain cells after traumatic brain injury and to analyze the relationship between differences in trauma burden and histopathological features of brain cell edema in rats after traumatic brain injury. This research is an experimental conducted by giving treatment to the object under study and then observing it. Sampling in this research will use purposive sampling. Where the researcher has determined the criteria of the sample to be used in the study so that it can represent the population. Based on the research conducted, it was found that there was a relationship between differences in trauma load and the percentage of brain cell edema in rats after experiencing traumatic brain injury. Where the greater the load given, the wider the surface of the brain that is experiencing edema. The results showed a significant edema appearance compared to the histopathological appearance of rat brain cells in normal samples. In addition, it was found that there was an increase in the percentage of areas with edema with a greater trauma load p=0.8156.","PeriodicalId":274989,"journal":{"name":"JURNAL SAINS TEKNOLOGI &amp; LINGKUNGAN","volume":"528 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124499946","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}