PEMETAAN NILAI KOEFISIEN SEISMIK DI DAERAH NUSA TENGGARA TIMUR

Abstrak Telah dilakukan perhitungan dan pemetaan nilai koefisien seismik pada 335 titik grid di daerah Nusa Tenggara Timur. Data yang digunakan pada penelitian ini berupa data historis gempabumi yang memiliki magnitudo ≥5 SR dan kedalaman ≤80 km periode 1977-2007, dengan batasan 60LS-130LS dan 1180BT-1290BT yang bersumber dari BMKG dan USGS. Dengan diketahuinya nilai percepatan tanah maksimum dan nilai percepatan gravitasi bumi yang telah dikoreksi dengan menggunakan koreksi lintang gravitasi untuk tiap titik grid, maka nilai koefisien seismik maksimum dapat dihitung dengan membandingkan nilai percepatan tanah maksimum terhadap nilai percepatan gravitasi bumi untuk tiap titik grid. Setelah dilakukan analisis perhitungan diperoleh nilai koefisien seismik di daerah Nusa Tenggara Timur. Data input berupa nilai percepatan tanah maksimum untuk formulasi Katayama  diperoleh nilai koefisien seismik maksimum sebesar 0.30236. Data input berupa nilai percepatan tanah maksimum untuk formulasi Donovan diperoleh nilai koefisien seismik maksimum sebesar 0.2335 sedangkan data input berupa nilai percepatan tanah maksimum untuk formulasi Murphy-O’Brein diperoleh nilai koefisien seismik maksimum sebesar 0.107720. Kata kunci: koefisien seismik maksimum; percepatan tanah maksimum; formulasi Donovan; formulasi Katayama; formulasi Murphy-O’Brein Abstract  Conducted research on determined and mapping of the value seismic coefficient by using 335 grid points in East Nusa Tenggara. The data which used are earthquake historic data with have condition of magnitude certainty ≥5 SR and deep ≤80 km in periodic 1977-2007, with the limitation region 60S-130S and 1180E-1290E. These data were taken from BMKG and USGS. By using the results of maximum peak ground acceleration and gravity acceleration value which using gravity latitude correction for every grid points, therefor the value of maximum seismic coefficient can be determined by comparing the value of maximum peak ground acceleration with gravity acceleration for ecah grid points. After the analysis, so that maximum seismic coefficient value in East Nusa Tenggara is determined.  Data input from maximum peak ground acceleration Katayama’s formulation yield the value of maximum seismic coefficient is 0.30236. Data input from maximum peak ground acceleration Donovan’s formulation yield the value of maximum seismic coefficient is 0.2335 and data input from maximum peak ground acceleration Murphy-O’Brein’s formulation yield the value of maximum seismic coefficient is 0.107720. Keywords: maximum seismic coefficient; maximum peak ground acceleration; Donovan’s formulation; Katayama’s formulation; Murphy-O’Brein’s formulatio

PENENTUAN INDEKS dan KOEFISIEN LAJU GERMINASI KEDELAI (Glycine max (L.) Merr) yang DIBERI PENGASAPAN (Liquid Smoke) dari SUMBER MATERIAL TUMBUHAN yang BERBEDA

The research aimed at determining the Germination Rate Index (ILG) and Coefficient Velocity of Germination (KLG) of Soybean treated with liquid smoke derived from different plant materials. The seeds were soaked with liquid smoke from 3 different plant sources: Kesambi wood, coconut shell, and rice husk with each source were then divided into six variety of concentration: 0%, 10%, 20%, 30%, 40% and 100%. Analysis was conducted by calculating the GRI and CVG based on the parameters observed which were : Germination Time (GT) and Mean Germination Time (MGT). Results showed that liquid smoke derived from Kesambi wood gave the best result in promoting Soybean germination. Based on its ILG and KLG value . Results showed that liquid smoke derived from Kesambi wood gave the best result in promoting Soybean germination. Based on its ILG and KLG value, Kesambi wood-derived liquid smoke with 10% concentration gave the best value which were 50,00 and 2,00 respectively. On the other hand, liquid smoke derived from coconut shell and rice husk inhibited Soybean germination starting from 10% concentration. It is suggested to use liquid smoke derived from Kesambi wood to promote seed germination with lower concentration.The research aimed at determining the Germination Rate Index (ILG) and Coefficient Velocity of Germination (KLG) of Soybean treated with liquid smoke derived from different plant materials. The seeds were soaked with liquid smoke from 3 different plant sources: Kesambi wood, coconut shell, and rice husk with each source were then divided into six variety of concentration: 0%, 10%, 20%, 30%, 40% and 100%. Analysis was conducted by calculating the GRI and CVG based on the parameters observed which were : Germination Time (GT) and Mean Germination Time (MGT). Results showed that liquid smoke derived from Kesambi wood gave the best result in promoting Soybean germination. Based on its ILG and KLG value . Results showed that liquid smoke derived from Kesambi wood gave the best result in promoting Soybean germination. Based on its ILG and KLG value, Kesambi wood-derived liquid smoke with 10% concentration gave the best value which were 50,00 and 2,00 respectively. On the other hand, liquid smoke derived from coconut shell and rice husk inhibited Soybean germination starting from 10% concentration. It is suggested to use liquid smoke derived from Kesambi wood to promote seed germination with lower concentration

let-7b-5p suppresses the proliferation and migration of pulmonary artery smooth muscle cells via down-regulating IGF1

Objectives: Some previous studies indicated that the excessive proliferation and migration of Pulmonary Artery Smooth Muscle Cells (PASMCs) could be observed in pulmonary artery intima after Pulmonary Embolism (PE) occurred. In addition, recent studies identified some miRNAs that are differentially expressed in the blood of PE patients, which might be used as a diagnostic biomarker for PE, including let-7a-5p, let-7b-5p, and miR-150-5p. Hence, the authors sought to explore the effects of let-7b-5p in PASMC proliferation and migration and the corresponding regulatory mechanism. Methods: Platelet-Derived Growth Factor (PDGF) was utilized to induce the hyper-proliferation model in PASMCs. The mRNA and protein expression levels were detected by RT-qPCR and western blot, respectively. The proliferation of PASMCs was evaluated by the detection of PCNA expression, as well as CCK-8 and Edu assays. Wound healing and Transwell assays were exploited to assess the migration ability of PASMCs. The targets of let-7b-5p were predicted based on two bioinformatics online tools. Dual-luciferase and Ago2 pull-down assays were applied to confirm the interaction between let-7b-5p and IGF1. Results: 40 ng/mL PDGF was selected as the optimal concentration to induce PASMCs. let-7b-5p mimics suppressed the proliferation and migration of PDGF-induced PASMCs, while let-7b-5p inhibitor led to the opposite result. In further mechanism exploration, IGF1 was predicted and confirmed as the direct target gene of let-7b-5p. The promotion role of IGF1 overexpression on the proliferation and migration of PDGF-induced PASMCs was dramatically countered by let-7b-5p mimics. Conclusion: let-7b-5p prohibits the proliferation and migration of PDGF-induced PASMCs by modulating IGF1

Identifying Andesite Rocks Sources Using Geoelectrical Resistivity in Loli, Donggala Regency, Central Sulawesi

Research has been carried out in Loli Village, Donggala Regency, Central Sulawesi using the Wenner-Schlumberger resistivity geoelectric method to determine the resource of andesite rocks. This measurement was done by determining the path points in the field using the Global Positioning System (GPS). The data collection was carried out using the geoelectrical resistivity method based on the area’s measurement plan. The data obtained was in the form of position data for each electrode, potential data (V), and current strength data (I) used to calculate the resistivity value (r). The results obtained from this research are andesite rock resource content, which was characterized by a high resistivity value ranging from 300–600 Wm. The resistivity value of the cover layer is low, ranging from 14–45 Wm. The latent content of andesite rocks was dominated in the southeast region on the trajectory of DRSA_01, DRSA_02, DRSA_03, DRSA_04, and DRSA_06 which had a lower topography than the northwest region. DOI: http://dx.doi.org/10.17977/um024v4i22019p04

The nutrional content of flamboyan leaves processed with different processing methods

Flamboyant (Delonix regia) is a plant that thrives all year round. This study aims to evaluate the nutritional content of flamboyant leaves processed with different processing methods. The study took in the Animal Feed Nutrition Laboratory of State Agricultural Polytechnic of Kupang from June to August 2022. The experimental design used was a Completely Randomized Design (CRD) with 5 treatments and 5 replications. The treatments tested were F1: flamboyant was dried in the shade for 5 days, F2: flamboyant was soaked in water for 4 hours, F3: flamboyant was soaked in a solution of rubbing ash for 4 hours, F4: flamboyant was ammoniated for 3 weeks, F5: flamboyant was fermented for 3 weeks. The results showed that the treatment tested had a very significant effect (P<0.01) on the content of organic matter, crude protein and crude fiber but had no effect (P>0.05) on the content of dry matter and crude fat. It can be concluded that the water immersion can increase the organic matter content, ammonia treatment increases the crude protein content and reduces the crude fiber content of flamboyant leaves

KARAKTERISASI STRUKTUR BAWAH PERMUKAAN TANAH PEKEBUNAN PADA KEBUN CONTOH POLITANI KUPANG MENGGUNAKAN METODE GEORADAR

Telah dilakukan penelitian pada lahan kebun contoh Politeknik Pertanian Negeri Kupang. Lahan inimemiliki luas 50 km2 dan didesain sebagai lahan contoh yang disediakan oleh pihak kampus, sebagai tempat pelaksanaan kegiatan praktikum oleh Dosen dan Mahasiswadalam menunjang perkembangan teknologi yang kreatif dan inovatif untuk meningkatkan produktivitas pertanian. Tujuan dilakukannya penelitian ini yaitu untuk mengindentifikasi tipe sedimen tanah di permukaan dan bawah permukaan berdasarkan interpretasi data georadar. Akuisisi datapada penelitian ini dilakukan pada dua lintasan pengukuran yaitu lintasan G1 dengan panjang lintasan 390 meter dan lintasan G2 dengan panjang lintasan 400 meter dengan arah lintasan Timur-Barat. Pengumpulan data georadar dilakukan dengan konfigurasi radar reflection profiling menggunakan transducer 200 MHz yang dilengkapi dengan receiver serta dilakukan pengambilan empat titik sampel tanah secara diagonal pada lokasi penelitian. Pada metode ini, pulsa elektromagnetik (radar) dipancarkan ke dalam tanah sehingga pulsa tersebut dapat diteruskan, dipantulkan dan dihamburkan oleh struktur lapisan tanah di bawah permukaan. Pulsa radar yang dipantulkan akan kembali ke permukaan tanah dan diterima oleh receiver yang telah dipasang di permukaan tanah. Pulsa yang terekam pada receiver inilah yang dapat diolah (prosessing) dan ditampilkan dalam bentuk rekaman pencitraan dua dimensi (2D) berupa penampang radargram. Hasil penelitian berdasarkan interpretasi penampang radargram pada lintasan G1 dan G2 menunjukkan bahwa tipe sedimen tanah pada kebun contoh Politani Kupang dari permukaan tanah sampai pada kedalaman kurang dari dua meter di bawah permukaan tanah merupakan lapisan sedimen tanah grumusol dan mediteran yang berbutir halus sampai kasar. Hasil analisis sifat fisika tanah pada lapisanpermukaan dan bawah permukaan pada kebun contoh Politani Kupang memenuhi tingkat kesuburan tanah

Analisis Laju Perkecambahan Kacang Tanah (Arachis hypogaea (L.) Merr.) yang Diberikan Kombinasi Perlakuan Suhu dan Lama Perendaman Asap Cair (Liquid Smoke)

The research aims to get to analyze the effect of temperature and liquid smoke soaking combination on the velocity of peanut germination. Parameters measure were; Mean Germinatin Time (MGT), Mean Germinatin Rate (MGR), Final Germintaion Percentage (GT), Coefficient Velocity Of Germination (CVG), Germination Rate Index (GRI). The treatment combinations used were temperature 250C (1), 300C (2), 350C (3) dan 400C (4) and liquid smoke in which the seeds were soaked for 1 hour (a), 2 hours (b) and 3 hours (c). This resulted in 12 treatment combinations. Results showed that the best treatments were control 1 (K0 250C), control 4 (K0 400C) and 4a (K1 400C), with germination velocity as folows: 1.67 cm.day-1, 1.50 cm.day-1 and 2.00 cm.day-1 respectively . However, it is recommended to use soaking in liquid smoke for an hour (1a) in order to further initiate germination development that could hopefully lead to a much higher peanut crop yield during cultivation

Application of extracorporeal membrane oxygenation to adults with cardiogenic shock and cardiac arrest in hospital

Objective·To assess the effect of veno-arterial extracorporeal membrane oxygenation (VA-ECMO) treatment on the mortality rate of patients suffering from cardiogenic shock and cardiac arrest in hospital.Methods·A total of 19 patients with cardiogenic shock or cardiac arrest who were treated with VA-ECMO treatment in Suzhou Kowloon Hospital, Shanghai Jiao Tong University School of Medicine from September 2017 to March 2022 were included in the retrospective study. Patients were divided into extracorporeal cardiopulmonary resuscitation (ECPR) group (n=9) and VA-ECMO for cardiogenic shock (E-CS) group (n=10) according to whether cardiac arrest had occurred. The general demographic data, clinical data, Sequential Organ Failure Assessment (SOFA) scores, postoperative complications and prognostic indicators of the two groups of patients were collected. Univariate and multivariate Cox proportional hazard regression analyses were used to evaluate the correlation between each covariate and hospital mortality.Results·Among the included patients, there were 15 males (78.9%), with an average age of 46.5 (34.5, 61.6) years. The incidence of postoperative complications was as follows: bleeding (47.4%), AKI (36.8%), infection (31.6%), limb ischemia (15.8%) and cerebrovascular accident (5.3%). The duration of VA-ECMO was 4.0 (2.0, 6.8) days, and the intensive care duration was 11.5 (5.8, 26.2) days; the ECMO withdrawal success rate was 63.2%, and the hospital mortality was 63.2%. The results of univariate Cox proportional hazard regression analysis showed that AKI (prior to VA-ECMO initiation), postoperative complications of infection and limb ischemia were correlated with the hospital mortality of patients (all P<0.05). The results of multivariate Cox proportional hazard regression analysis showed that AKI (prior to VA-ECMO initiation), postoperative complications of infection and limb ischemia were also independent risk factors for the hospital mortality of patients (all P<0.05).Conclusion·For patients with cardiogenic shock and cardiac arrest treated with VA-ECMO, AKI (prior to VA-ECMO initiation), postoperative infection and limb ischemia are independently associated with higher hospital mortality

A novel deep-learning based weighted feature fusion architecture for precise classification of pressure injury

Introduction: Precise classification has an important role in treatment of pressure injury (PI), while current machine-learning or deeplearning based methods of PI classification remain low accuracy.Methods: In this study, we developed a deeplearning based weighted feature fusion architecture for fine-grained classification, which combines a top-down and bottom-up pathway to fuse high-level semantic information and low-level detail representation. We validated it in our established database that consist of 1,519 images from multi-center clinical cohorts. ResNeXt was set as the backbone network.Results: We increased the accuracy of stage 3 PI from 60.3% to 76.2% by adding weighted feature pyramid network (wFPN). The accuracy for stage 1, 2, 4 PI were 0.870, 0.788, and 0.845 respectively. We found the overall accuracy, precision, recall, and F1-score of our network were 0.815, 0.808, 0.816, and 0.811 respectively. The area under the receiver operating characteristic curve was 0.940.Conclusions: Compared with current reported study, our network significantly increased the overall accuracy from 75% to 81.5% and showed great performance in predicting each stage. Upon further validation, our study will pave the path to the clinical application of our network in PI management

Evidence for e+e−→γχc1,2e^+e^-\to\gamma\chi_{c1, 2} at center-of-mass energies from 4.009 to 4.360 GeV

Using data samples collected at center-of-mass energies of $\sqrt{s}$ = 4.009, 4.230, 4.260, and 4.360 GeV with the BESIII detector operating at the BEPCII collider, we perform a search for the process $e^+e^-\to\gamma\chi_{cJ}$ $(J = 0, 1, 2)$ and find evidence for $e^+e^-\to\gamma\chi_{c1}$ and $e^+e^-\to\gamma\chi_{c2}$ with statistical significances of 3.0$\sigma$ and 3.4$\sigma$, respectively. The Born cross sections $\sigma^{B}(e^+e^-\to\gamma\chi_{cJ})$, as well as their upper limits at the 90% confidence level are determined at each center-of-mass energy.Comment: 8 pages, 7 figures, 3 table