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INDONESIA
PROSIDING SEMINAR NASIONAL
Published by Universitas Muhammadiyah Semarang
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Education
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Articles 1,509 Documents
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SOSIAL, EKONOMI, PSIKOLOGI SOSIAL, EKONOMI, PSIKOLOGI -
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2017: Prosiding Seminar Nasional Pendidikan, Sains dan Teknologi
Publisher : Universitas Muhammadiyah Semarang

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Abstract

SOSIAL, EKONOMI, PSIKOLOGI
SINTESIS MEMBRAN ZEOLIT ZSM-5 SECARA COATING PADA SUHU 90 ° C BERDASARKAN VARIASI PERLAKUAN KASA STAINLESS STEEL AISI 316 180 MESH DALAM MENURUNKAN KADAR GAS CO Maulida Julia Saputri; Ana Hidayati Mukaromah; Yusrin Yusrin
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2017: Prosiding Seminar Nasional Publikasi Hasil-Hasil Penelitian dan Pengabdian Masyarakat
Publisher : Universitas Muhammadiyah Semarang

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Abstract

Telah dilakukan sintesis membran zeolit ZSM-5 secara coating pada suhu 90o C berdasarkan variasi perlakuan kasa stainless-steel AISI 316 180 mesh terhadap penurunan kadar gas CO. Tujuan penelitian ini untuk mengetahui pengaruh membran zeolit ZSM-5 yang disintesis secara coating pada suhu 90 C berdasarkan variasi perlakuan kasa stainless-steel AISI 316 180 mesh terhadap penurunan kadar gas CO.Jenis penelitian ini merupakan eksperimen yang didukung studi pustaka. Sebelumnya dilakukan perlakuan agar membran zeolit pada saat coating dapat  tumbuh dengan baik. Kasa stainless steel AISI 316 ukuran 180 mesh diberikan perlakuan I dengan HNO 10% dan aceton, perlakuan II dengan Toluene 95% dan HCl 15%,perlakuan III dengan NaOH 15%;HCl 15% dan H32SO 20%, serta perlakuan IV dengan toluene 95%; HCl 5% dan TPABr 0,1 M.  Hasil penelitian menunjukkan persentase penurunan kadar gas CO berdasarkan variasi perlakuan I, II, III dan IV diperoleh rata-rata persentase penurunan kadar gas CO sebesar12,45±1,76%; 9,38±1,41 %; 15,07±1,05% dan 11,74±1,12 %. Kapasitas  adsorpsi membran  zeolit ZSM-5 kasa AISI 316 180 mesh terhadap gas CO dengan perlakuan I, II, III dan IV diperoleh rata-rata yaitu 34781,93±1230,6 mg/g; 17252,03±1295,17 mg/g; 81047,46±3809,98 mg/g dan 30681,42 ±1589,472mg/g.Persentase penurunan kadar gas CO serta adsorpsi membran zeolit terbaik pada perlakuan III. Hasil dari uji statistik One Way Anova didapat nilai signifikansi 0,004 < 0,05 , disimpulkan bahwa Terdapat pengaruh variasi perlakuan stainless steel dengan sintesis membran zeolit ZSM-5 secara coating pada suhu 90°C terhadap penurunan kadar gas CO.Kata Kunci : Zeolit ZSM-5, Perlakuan terhadap kasa, Coating, Kadar gas CO
PENGARUH PERUBAHAN TEKANAN DAN WAKTU PROSES PLASMA/ ION NITRIDING TERHADAP KEKERASAN PERMUKAAN PAHAT BUBUT HSS Purnomo -
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2010: Sain, Teknologi, Kimia Sosial dan Humaniora, Kimia
Publisher : Universitas Muhammadiyah Semarang

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Abstract

Pahat bubut jenis high speed steel (HSS)  saat ini membanjiri pasar alat potong di Indonesia. Pahat jenis HSS ini permukaannya cepat aus. Peningkatan ketahanan aus pahat tersebut dilakukan dengan meningkatkan kekerasan permukaan bahan tersebut dengan menggunakan teknologi plasma/ion nitriding. Tujuan penelitian ini adalah menentukan tekanan dan waktu proses plasma/ion nitriding yang menghasilkan kekerasan tertinggi pada permukaan material pahat bubut tersebut. Proses plasma/ion nitriding dilakukan terhadap spesimen dari bahan pahat bubut Hss dengan variasi tekanan 1,2 mbar, 1,4 mbar, 1,6 mbar, 1,8 mbar dan 2 mbar pada variasi waktu 2 jam, 3 jam, 4 jam, 5 jam dan 6 jam. Pengujian kekerasan dilakukan dengan metode Mikro Vickers pada beban 10 gf dengan lama indentasi 15 detik. Hasil pengujian kekerasan material yang dikenai plasma nitriding treatment dibandingkan terhadap nilai kekerasan material tanpa treatment untuk mengetahui besarnya peningkatan kekerasannya. Hasil pengujian menunjukkan bahwa kekerasan permukaan meningkat sebesar 535,8% dari kekerasan 288VHN menjadi 1834 VHN. Harga ini diperoleh melalui plasma/ion nitriding treatment pada tekanan 1,6 mbar selama 4 jam. Kata Kunci : pahat bubut HSS, plasma/ion nitriding, tekanan, waktu, kekerasan
The Risk Factors occurrence of contact dermatitis: a cross sectional study Cynthia ayuningtias; Eko Krisnarto; Kanti Ratnaningrum
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2016: Proceeding of International Seminar on Education Technology (ISET) 2016
Publisher : Universitas Muhammadiyah Semarang

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Abstract

Abstract.Contact dermatitis is a disease that is most often found in the majority of cases dermatology. Several factors can be act as cause of contact dermatitis, therefore the researchers wanted to know the risk factors that contribute to the incidence of contact dermatitis.This work is an analytic observational studies conducted in RSUD Tugurejo hospitals of Semarang with cross sectional approach using total sampling method. In this work, primary data were taken from direct interviews and secondary data were derived from medical records. Data analysis using chi square test. Analysis of the 65 samples showed that there are a relationship between age (p = 0.004), gender (p = 0.002), history of atopic (p = 0.004), irritants (p = 0.000), duration of contact (p = 0.000), and the location lesions (p = 0.000) on the incidence of contact dermatitis. It can be concluded that there is a relationship between age, sex, history of atopic, irritants, contact time and location of the lesions on the incidence of contact dermatitis in Tugurejo hospitals of Semarang.
PERLINDUNGAN HUKUM TERHADAP KESEJAHTERAAN ANAK Harmonisasi Undang – undang - Kuswardani; - Chusniatun
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2015: Prosiding Bidang Sosial Ekonomi dan Psikologi The 2nd University Research Colloquium
Publisher : Universitas Muhammadiyah Semarang

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Abstract

The law is a tool development to all of children welfare. Protection and legal guarantees against children welfare as a consequences Indonesia rule of law, because it is human rights of children.  Law is acts have to in accordance with the Pancasila and UUD NRI 1945, so the acts areharmonious.  This aim of study to descript harmonization of legislation on law protection of children welfare, so that the research is normative legal. The result research show thatharmonization of legislation on law protection of children welfare are not harmonious yet. Lex of children welfare that should be as reference to protect,  to guarantee , but it give the meaning of children welfare is not exstensive,  limited to basic needs, those fisiology needs.. Keywords : law protection, children welfare.
SISTEM PENDUKUNG KEPUTUSAN DETEKSI PENYAKIT KANKER PAYUDARA MENGGUNAKAN ALGORITMA NAIVE BAYES Ivandari Ivandari; Erni Rahmawatie; M. Adib Al Karomi
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2018: SEMINAR NASIONAL PENDIDIKAN SAINS DAN TEKNOLOGI
Publisher : Universitas Muhammadiyah Semarang

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Abstract

Cancer is one of the biggest causes of death in the world. Data from the International Agency for Research of Cancer (IARC) states that in 2012 more than 8.2 million people died from cancer. From these data it is known that breast cancer is the most common type of cancer suffered by 19.2% of all cancer cases. The amount of data and records related to cancer patient cases can  be  useful  if  from  this  data  an  information  or  new  knowledge  can  be retrieved. Data mining is a field of knowledge that processes past data to be used as new information and knowledge. From the comparative research of data mining algorithms for detection of breast cancer in 2017 naive bayes is the best algorithm. Naive Bayes is proven to have a higher level of accuracy than other algorithms. In this study a decision support system for the detection of breast cancer was made. The system created using this Excel application can be one of the recommendations. The method used for calculation is the probability of naive bayes..Keywords: Naive bayes, Microsoft excell, decission support system
APPLICATION OF SUPPORT VECTOR MACHINE METHOD FOR RUPIAH EXCHANGE RATE TO US DOLLAR FORECASTING Rias Monica Putri; Edy Widodo
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2018: SEMINAR NASIONAL PENDIDIKAN SAINS DAN TEKNOLOGI
Publisher : Universitas Muhammadiyah Semarang

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Abstract

A country’s currency exchange rate is one of important indicators in economy. The currency used in international transactions is called Foreign Exchange. For a developing country like Indonesia, the role of foreign exchange rate is very important, especially against hard currencies such as US Dollar. Forecasting foreign exchange is a very important strategy to achieve international business success. This study uses Support Vector Machine (SVM) method because that method has excellent capability in minimizing classification error. From this study result, obtained that the best parameter to forecast Rupiah exchange rate to US Dollar are epsilon (ε) = 0.1, cost (C) = 256, and gamma (γ) = 8. Then, the result of Rupiah exchange rate to US Dollar forecasting on 14th days, the Rupiah exchange rate to US Dollar began to strengthen until it reached Rp. 14.359,14. Keywords:Foreign Exchange,Rupiah, US Dollar, Support Vector Machine (SVM)
EFEKTIVITAS SERAI WANGI (Cymbopogon nardus Linn) SEBAGAI BIO FUNGISIDA PADA PENGENDALIAN Sclerotium rolfsii Sacc PENYEBAB BUSUK PANGKAL BATANG PADA TANAMAN CABAI MERAH (Capsicum annuum L) Listiatie Budi Utami
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2004: PROSIDING SEMINAR NASIONAL HASIL-HASIL PENELITIAN
Publisher : Universitas Muhammadiyah Semarang

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Abstract

Telah dilakukan penelitian untuk mengkaji pengaruh pelarut air dan  organik pada ekstrak serai wangi terhadap perkecambahan sklerotia rolfsii dan  menentukan kadar hambat minimumnya terhadap perkecambahan  sklerotia serta konsentrasi yang efektif dalam mengendalikan penyakit busuk pangkal batang cabe merah. Ekstrak dalam pelarut organik dan air mampu  menghambat jumlah dan ukuran diameter kecambah pada konsentrasi  20% dan 50%, semakin tinggi konsentrasi ekstrak dan fungisida Antracol semakin ringan tingkat serangan penyakit. Konsentrasi 40 % ekstrak setara dengan Antracol 1,75  g/1
HUBUNGAN ANTARA TINGKAT PENGETAHUAN DENGAN SIKAP IBU DALAM PENCEGAHAN KERACUNAN PADA ANAK USIA 1-5 TAHUN Studi Observasional Di Kelurahan Karangrejo Semarang Ahmad Ikhlasul Amal; Yani Istadi; Kurnia Wijayanti
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2013: PROSIDING KONFERENSI NASIONAL PPNI JAWA TENGAH
Publisher : Universitas Muhammadiyah Semarang

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Abstract

Latar Belakang: Agen pencedera yang terkait dengan kelompok anak usia dibawah 6 tahun yaitu keracunan. Sekitar 59% kasus pada pusat keracunan terjadi pada anak dibawah umur 6 tahun. Ibu berperan penting dalam pencegahan cedera keracunan anak, karena ibu merupakan orang terdekat bagi anak. Tujuan penelitian untuk mengidentifikasi hubungan antara tingkat pengetahuan dengan sikap ibu dalam pencegahan keracunan pada anak usia 1-5 tahun.Metode: Penelitian ini merupakan jenis penelitian analitik observasional dengan menggunakan metode cross sectional. Pengumpulan data menggunakan kuesioner. Jumlah responden sebanyak 160 orang dengan teknik consecutive sampling. Teknik analisa yang digunakan uji chi square dan keeratan hubungan koefisien kontingensi. Hasil: Berdasarkan hasil analisa diperoleh, karakteristik responden menurut umur sebagian besar berusia antara 26-34 tahun sebanyak 95 orang, dengan karakteristik menurut pekerjaan sebagian besar ibu rumah tangga sebanyak 77 orang, dan karakteristik menurut pendidikan sebagian besar tamat SMA sebanyak 51 orang. Hasilpenelitian juga menunjukkan 73 orang memiliki tingkat pengetahuan baik, dan 127 orang memiliki sikap positif. Sebanyak 67 orang memiliki tingkat pengetahuan  baik dan sikap positif. Hasil uji chi square diperoleh nilai X 2 hitung lebih besar dari X 2 tabel (25,977 > 5,991), dan nilai p value 0,000. Nilai koefisien kontingensi 0,374 yang menunjukkan bahwa kekuatan korelasi lemah.Simpulan: Ada hubungan antara tingkat pengetahuan dengan sikap ibu dalam pencegahan keracunan pada anak usia 1-5 tahun (p value < 0,05).Kata kunci: Tingkat pengetahuan, sikap, anak usia 1-5 tahun.
DUKUNGAN KELUARGA PADA PASIEN DIABETES MELLITUS TIPE 2 DI KOTA SEMARANG Arief Yanto; Dewi Setyawati
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2017: Prosiding Seminar Nasional Publikasi Hasil-Hasil Penelitian dan Pengabdian Masyarakat
Publisher : Universitas Muhammadiyah Semarang

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Abstract

ntroduction: Diabetes mellitus is a chronic disease that is difficult to cure. This causes people with diabetes mellitus have psychological pressure. The family is one of the support systems for people with type 2 diabetes mellitus. This research aimed to know about family support of patients with type 2 diabetes mellitus.Method: The research is descriptive quantitative with cross sectional approach to know about family support in type 2 diabetes mellitus patients. The number of samples is 96 patients with type 2 diabetes mellitus at Regional Hospital KRMT Wongsonegoro Semarang.Results: The research showed that the family support of patients with type 2 diabetes mellitus had an average value of 61.52 with high level family support category of 70 respondents (72.9%) and low level family support category of 26 respondents (27.1%). Family support for patients who are married tends to be higher than single patients. Good family support will affect the implementation of the diabetes mellitus treatment program undertaken by the patient.Conclusion: Family support is an important factor in supporting the success of the type 2 diabetes mellitus treatment program. Therefore, nurses are expected to involve more families in providing nursing care to patients with type 2 diabetes mellitus.Keyword : Diabetes Mellitus, Family support

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