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PENGARUH VARIASI BERAT FOAMING AGENT CaH2 TERHADAP KARAKTERISTIK PADUAN Mg-Ca-Zn METAL SELULAR BERBASIS SISTEM Mg-Zn-CaH2 Ika Kartika; M Ikhlasul Amal; Cahya Sutowo; Sulistyoso Gian Sukarso; Bambang Sriyono
Metalurgi Vol 29, No 2 (2014): Metalurgi Vol.29 No.2 Agustus 2014
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (624 KB) | DOI: 10.14203/metalurgi.v29i2.286

Abstract

PENGARUH WAKTU MILLING PADA PADUAN Mg-Ca-Zn-CaH2 UNTUK APLIKASI IMPLAN[The Effects of Milling Time On Mg-Ca-Zn-CaH2 Alloys for Implant Application] Franciska Pramuji Lestari; Yudi Nugraha T; Ika Kartika; Bambang Sriyono
Metalurgi Vol 28, No 2 (2013): Metalurgi Vol.28 No.2 Agustus 2013
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (713.369 KB) | DOI: 10.14203/metalurgi.v28i2.248

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PROSES DEFORMASI SANGAT TINGGI (SEVERE PLASTIC DEFORMATION) TERHADAP PADUAN Al-5052 HASIL ANILING[Severe Plastic Deformation Process of Annealed Al-5052 Alloy] Ika Kartika
Metalurgi Vol 27, No 3 (2012): Metalurgi Vol.27 No.3 Desember 2012
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (976.72 KB) | DOI: 10.14203/metalurgi.v27i3.229

Abstract

Struktur Mikro, Sifat Mekanik, Dan Ketahanan Korosi Paduan Mg-Zn-Ca Yang Dihasilkan Melalui Proses Metalurgi Serbuk [Microstructure, Mechanical And Corrosion Properties of Mg-Zn-Ca Alloy via Powder Metallurgy] Dhyah Annur; Franciska Pramudji Lestari; Aprilia Erryani; M Ikhlasul Amal; Lyandra S Sitorus; Ika Kartika
Metalurgi Vol 31, No 3 (2016): Metalurgi Vol. 31 No. 3 Desember 2016
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7886.384 KB) | DOI: 10.14203/metalurgi.v31i3.173

Abstract

Magnesium (Mg), known for its biodegradable and biocompatible properties, currently is being developed for biodegradable implant material. Unfortunately, application of Mg in biomedical devices was limited due to its low mechanical strength and low corrosion resistance. In this study, powder metallurgy was selected to process Mg-3Zn-1Ca, Mg-29Zn-1Ca, and Mg-53Zn-4.3Ca (in weight%) alloys. Holding time of sintering were varied for five and ten hours. Microstructure of Mg alloy was characterized by SEM (scanning electron microscope) and also XRD (x-ray diffraction). Compression testing was done to show the mechanical strength of Mg alloy, while corrosion resistance was examined through electrochemical testing. This study showed that ten hours of sintering time would increase mechanical properties of Mg alloy but would reduce corrosion resistance. The lowest corrosion rate was 0.32 mmpy given by Mg-29Zn-1Ca alloy and Mg-53Zn- 4Ca alloy which were sintered for five hours. Therefore, sintering time for five hours was found to be the optimum time to process Mg-Zn-Ca alloy for biodegradable implant material.AbstrakMagnesium (Mg), dengan kemampuan mampu luruh dan biokompatibilitas, merupakan salah satu logam yang kini dikembangkan sebagai material implan mampu luruh. Namun, penggunaan Mg dalam aplikasi biomedis masih terkendala kekuatan dan ketahanan korosi yang rendah. Pada penelitian kali ini proses metalurgi serbuk dipilih untuk membuat paduan Mg-3Zn-1Ca, Mg-29Zn-1Ca, and Mg-53Zn-4.3Ca (dalam %berat) dengan variasi waktu tahan sintering lima jam dan sepuluh jam. Pengaruh waktu tahan sintering dikaji dari segi kekuatan tekan dan ketahanan korosi paduan. Karakterisasi struktur mikro paduan Mg dilakukan dengan menggunakan scanning electron microscope (SEM) dan juga x-ray diffraction analysis (XRD). Dilakukan pengujian tekan untuk mengetahui nilai kekuatan paduan sedangkan ketahanan korosi dianalisis dengan menggunakan pengujian elektrokimia.  Waktu  tahan sintering selama 10 jam akan meningkatkan kekuatan mekanik namun menurunkan ketahanan korosi paduan. Laju korosi yang terbaik (0,32 mmpy) ditunjukkan oleh paduan Mg-29Zn-1Ca dan Mg-53Zn-4Ca dengan waktu tahan lima jam. Oleh karena itu, waktu tahan sintering yang optimum  adalah lima jam untuk menghasilkan paduan Mg-Zn-Ca untuk material implan.
FENOMENA DYNAMIC STRAIN AGING PADA PROSES TEMPA PANAS PADUAN Co-33Ni-20Cr-10Mo[Dynamic Strain Aging Phenomena of Co-33Ni-20Cr-10Mo Alloy During Hot Forging] Ika Kartika
Metalurgi Vol 27, No 1 (2012): Metalurgi Vol. 27 No. 1 April 2012
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (877.426 KB) | DOI: 10.14203/metalurgi.v27i1.136

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Papillary Renal Cell Carcinoma Type 1 Accompanied by Hemorrhagic Anemia: A Case Report Mulia, Deddy Primadona; Zulkhair Ali; Novadian Suhaimi; Suprapti Slamet; Ian Effendi; Syahpri Putra Wangsa; Kgs. M. Yusuf Arief Akbar; Mediarty Syahrir; Fadil Pramudhya Hoesain; Ika Kartika
Bioscientia Medicina : Journal of Biomedicine and Translational Research Vol. 7 No. 11 (2023): Bioscientia Medicina: Journal of Biomedicine & Translational Research
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/bsm.v7i11.888

Abstract

Background: Kidney cancer or renal cell carcinoma (RCC) accounts for 5% and 3% of all adult malignancies in men and women, respectively, thus representing the 7th most common cancer in men, and the 10th most common cancer in women. The incidence of kidney cancer in the last two decades has shown an increase, but in recent years the death rate due to kidney cancer has decreased because it is increasing. Case Presentation: A 27 year old male patient came with complaints of bloody urination. Patients also complain of body weakness. Every time they are active, the weakness decreases if the patient rests. The patient was stated to be suffering from anemia and a left kidney tumor. There was bilateral antebrachial pitting edema. There was bilateral pretibial edema. Cytological examination revealed papillary renal cell carcinoma type 1. Conclusion: Papillary cell carcinoma type 1 is a kidney tumor that has a good prognosis, especially if found at an early stage. The classic symptoms of type 1 pRCC are anemia, hematuria and kidney swelling.
The Role of Lecturers in Strengthening Integrity Character as a Bullying Effort at UIN Sunan Kalijaga Yogyakarta Eri Setiawan; Abdul Munip; Ika Kartika; Wulandari
al-Afkar, Journal For Islamic Studies Vol. 7 No. 2 (2024)
Publisher : Perkumpulan Dosen Fakultas Agama Islam Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/afkarjournal.v7i2.1006

Abstract

The problem of bullying that occurs in the world of education requires a solution to overcome this bullying problem. This research aims to analyze the role of lecturers in strengthening the character of integrity as a bullying effort at UIN SUKA Yogyakarta, so that bullying problems that occur among students do not occur again. This research uses a qualitative method with a case study approach, data collection is by direct observation, interviews and documentation. Data analysis was carried out by researchers by reducing data, displaying data and drawing conclusions. The research results show that the role of lecturers at UIN Sunan Kalijaga Yogyakarta has its own strategy in strengthening the character of integrity so that it has an impact on commendable morals and ethics. The lecturers' strategies in efforts to create anti-bullying include character education and ethical learning, fostering inclusive communities, empowering students to become positive leaders and using case studies and ethical discussions. This strategy was felt by the students to be quite effective, so that students responded well, because students understood and understood the impact on bullying behavior.
Superior Vena Cava Syndrome in Men with Thymic Atypical Carcinoid (Neuroendocrine Tumor Grade 2) Ramkita, Nora; Suly Auline Rusminan; Ika Kartika; Krisna Murti; S. Nurul Amanah Ratna Sari; Devi Eqtriana Setyaningsih
Jurnal RSMH Palembang Vol. 3 No. 2 (2022): Jurnal RSMH Palembang
Publisher : RSUP Dr Moh Hoesin Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/jrp.v3i2.57

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Introduction: Cases of neuroendocrine tumors (NET) can occur in various organs, generally in the form of gastroenteropancreatic (GEP-NET) and pulmonary tract (PNET). The incidence of thymic neuroendocrine tumors (TNET) is rare, accounting for less than 5% of thymic and mediastinal malignancies, and 0.4% of all neuroendocrine tumors. Case presentation: A 57-year-old man came to RSUP Dr. Mohammad Hoesin Palembang with complaints of coughing, bluish and curved blood vessels in the chest, and shortness of breath during activities that have been getting worse for six months. CT scan showed a tumor measuring 18.6 x 11.7 x 11 cm in the anterior mediastinum and pressing on the superior vena cava and abdominal aorta. TTNA and core biopsy with CT guidance showed NET Grade 2, mitoses 6/2 mm2, positive tumor cells with immunohistochemistry for synaptophysin, chromogranin, CD 56, AE1/AE3, and Ki67 9%. The patient received paclitaxel and carboplatin chemotherapy for 6 cycles. Conclusion: The prognosis for atypical carcinoid patients is 20-80% for a 5-year survival rate. Appropriate patient management is needed to improve the outcome of patients with primary thymic atypical carcinoid (NET, grade 2).
Artikel PENGARUH PROFITABILITAS, SOLVABILITAS, DAN UKURAN PERUSAHAAN TERHADAP AUDIT REPORT LAG Karnawati, Yosevin; Ika Kartika
Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan Vol. 4 No. 8 (2022): Fair Value: Jurnal Ilmiah Akuntansi dan Keuangan
Publisher : Departement Of Accounting, Indonesian Cooperative Institute, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.776 KB) | DOI: 10.32670/fairvalue.v4i8.856

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This study aims to determine the effect of profitability, solvency, and firm size on audit report lag. The population in this study are all food and beverage sub-sector manufacturing companies listed on the Indonesia Stock Exchange for the 2015-2019 period. The sampling technique used purposive sampling, so the number of research samples was 65 data. The research method uses multiple linear regression analysis, F test and t test. F test results show that profitability, solvency, and firm size have a simultaneous effect on audit report lag. Partially, profitability and firm size have no effect on audit report lag, but solvency has a positive effect on audit report lag. The coefficient of determination (R²) in this study was 11.7%. The research findings show that the average financial report submission time is 84 days
Pengaruh Citra Merek dan Harga terhadap Loyalitas Pelanggan Sparepart Mobil Payung Auto Solution Ika Kartika
Jurnal Riset Rumpun Ilmu Ekonomi Vol. 4 No. 1 (2025): April: Jurnal Riset Rumpun Ilmu Ekonomi
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrie.v4i1.4390

Abstract

This research was conducted at Payung Auto Solution. The purpose of this study was to determine and analyze the influence of brand image and price on customer loyalty of paying auto solution. The population numbered 138 customers while the sample in this study were: which amounted to 102 customers. The sampling technique used is simple random sampling. Data collection techniques are by distributing questionnaires, interviews and documentation studies. Data analysis uses multiple linear regression analysis. The conclusion in the study that Brand Image has a positive and significant effect on customer loyalty of Payung Auto Solution Medan car spare parts. Price has a positive and significant effect on customer loyalty of Payung Auto Solution Medan car spare parts. Brand Image and Price have a positive and significant effect on customer loyalty of Payung Auto Solution Medan car spare parts. Adjusted R Square is: equal to 0.266 means Brand Image and Price can explain Customer Loyalty of 26.6% and the remaining 73.4% is influenced by other variables outside of this research such as: promotion, service, product innovation and so on.
Co-Authors Aa Nugraha Abdul Munip Ahmad Hendrawan Ahmadi Usman Ali Alhamidi Alwi Dahlan Amelia Amelia Amie Primarni Anandha Budiantoro Aprilia Erryani Ari Sukawan Aspitriani Azis, Mohammad Taufik Azwar Abdurakhman Bambang Soegijono Bambang Sriyono Bela Oktavia Cahya Sutowo Chaerunnisa Chaira Saidah Dede Atung Dede Oop Isofah Devi Eqtriana Setyaningsih Dhyah Annur Dicky Fauzi Firdaus Ellys Ellys Endang Sutisna Eri Setiawan Erial Bahar Ernawati Esa Hari Wibowo Fachru Abdul Rahman Fadil Pramudhya Hoesain Farij Makarim Fariz Fudla Fasih Fendy Rokhmanto Fendy Rokhmanto Franciska Pramudji Lestari Franciska Pramuji Lestari Heriman, Muhammad I Nyoman Gede Putrayasa Astawa Ian Effendi Ibrahim Purawiardi Iffiani, Zelly Iim Suryahim Ika Kartika Indah Yunalda Jayawarsa, A.A. Ketut Jessica Natalia Juliana Jusuf Fantoni Karnawati, Yosevin - Kgs. M. Yusuf Arief Akbar Krisna Murti Krisna Murti Linda Fatrisia Lyandra S Sitorus M Ikhlasul Amal M. Irfan Mahdalena Juniarsih Makmudi Mediarty Syahrir Muhammad Hafidz Baihaqi Muhammad Hafiz Mulia, Deddy Primadona Mutiara Srikandi Ngabidin Nia Nurhayati Ningsih, Nining Surya Noor Albar Nora Ramkita Novadian Suhaimi Nurazizah Nurdin Rohendi, Muh Putri Sekar Sari Rahma Amelia Raihan Nuryasa Fartusi Ria Yuni Rahmawati, Mayta Novaliza Isda, Siti Fatonah, Riyanto Rosdianto RR. Ella Evrita Hestiandari S. Nurul Amanah Ratna Sari Saepudin Sahar Layali SITI KHODIJAH Sulistyoso Gian Sukarso Suly Auline Rusminan Suprapti Slamet Surono Surono Surudin, Yan Syaeful Anwar Syahpri Putra Wangsa Tubagus Ahmad Vanessa Vicario Vita Jamilah Wahidin Wiwi Uswatiyah WULANDARI Yudi Nugraha T Yusi Srihartini Yuwono Yuwono Zulkarnain Musa Zulkhair Ali