Judul: Penerapan Regresi Peubah Ganda pada Sifat-Sifat Mekanik Baja Batang Kawat Karbon Tinggi.
Abstrak: Baja batang kawat karbon tinggi grade KS1062A berdiameter 5 mm merupakan salah satu produk baja yang diproduksi oleh pabrik Wire Rod Mill (WRM) di PT Krakatau Steel. Pada proses pembutan baja batang kawat, pabrik WRM memiliki dua line yang dibedakan berdasarkan teknologi pendinginan yang digunakan. Baja memiliki sifat-sifat mekanik yaitu Tensile Strength (TS) dalam kg/mm2, Yield Strength (YS) dalam kg/mm2, dan Elongation (EL) dalam persen. Keragaman nilai sifat-sifat mekanik diduga dipengaruhi oleh kandungan komposisi kimia, perubahan suhu, dan perbedaan line. Pemodelan peubah ganda diperlukan pada data yang memiliki peubah respon lebih dari satu yang tidak saling bebas. Uji signifikansi parameter yang digunakan yaitu statistik Wilks’ Lambda. Berdasarkan hasil uji tersebut, unsur kimia yang berpengaruh nyata secara simultan terhadap ketiga sifat mekanik adalah unsur C, Mn, Si, dan V, sedangkan perubahan suhu dan perbedaan line tidak berpengaruh nyata terhadap sifat-sifat mekanik tersebut. Selain itu, besarnya nilai sifat-sifat mekanik baja juga dipengaruhi oleh perbedaan tanggal produksi.
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Judul: Identifikasi Peubah-Peubah yang Mempengaruhi Kualitas Produk Batang Kawat Baja Cold Heading
Abstrak: Cold heading steel wire rod is one of the steel products manufactured by WRM division at PT Krakatau Steel (Persero) Tbk. The flow of steel wire rod manufacturing process at the division WRM consists of two line are distinguished by the cooling technology used. Steel wire rod steel mechanical properties, among others, yield strength/YS, tensile strength/TS, and elongation/EL. The diversity of the mechanical properties of the steel value is thought to be influenced by several variables such as variable line difference (engine), variable inputs (raw materials/ chemical composition), and the production process variables (temperature rolling process). Based on the results of the test vector median value of the difference in the second line was found that there was no difference in the line affect the mechanical properties of steel produced, while the results of different time periods stated production are wide differences in the time period of production or the data is not homogeneous. Furthermore, based on the results of exploratory evaluation of production performance by looking at the specification limit and the linkage between variables chart showing the movement of the diversity generated in the production of different time periods. The variable chemical composition Si, temperature LHD and SMC suspected to have considerable influence on the mechanical properties of steel change variables, especially variables TS.
Keyword: the movement graph, specification limits

Judul: Zoonosis yang baru muncul bersumber satwa liar dan tantangan kesehatan masyarakat veteriner
Abstrak: The objective of this scientific writing was to review the emerging infectious diseases (EIDs) which are zoonotic and originate in wildlife causing great negative impacts on public health, economy, social, politic, and national security. Furthermore, factors triggering the emergence and spread of emerging zoonotic diseases and global efforts in anticipating them were discussed in this review. It is recognized that EID are a significant burden on global economies and public health. Their emergence is thought to be driven largely by socio-economic, environmental and ecological factors. EID events are dominated by zoonoses (60.3% of EIDs) and the majority of these (71.8%) originate in wildlife, e.g., severe acute respiratory virus (SARS virus) and Ebola virus. The importance and recognition of wildlife as a reservoir of zoonoses are increasing. Emerging zoonoses (EZs) have been assumed increasing importance in public and animal health. Cost effective prevention and control of these zoonoses need an interdisciplinary and holistic approach and international cooperation. Surveillance, laboratory capability, research, training and education, and communication are key elements. Globalization has created many new challenges, particularly with regard to animal, human, and environmental health. New approaches in prevention, control, and eradication of zoonotic diseases have been developed and introduced worldwide, i.e., one health and ecohealth. The one health concept is a worldwide strategy for expanding interdisciplinary collaboration and communications in all aspects of health care for humans and animals, while ecohealth approach is to improve human health and well-being while simultaneously maintaining a healthy ecosystem.
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