Judul: Pengetahuan, persepsi risiko, dan perilaku membaca label kadaluarsa produk pangan
Abstrak: Label kadaluarsa terdiri atas tanggal, bulan, dan tahun yang dibuat oleh produsen untuk menentukan keamanan pangan dan petunjuk perubahan lain seperti cita rasa dan kandungan gizi. Penelitian ini bertujuan untuk menganalisis pengaruh faktor internal dan faktor eksternal terhadap pengetahuan, persepsi risiko, dan perilaku membaca label kadaluarsa. Penelitian dilakukan di Institut Pertanian Bogor (IPB). Teknik penarikan contoh yang digunakan adalah multistage random sampling dengan jumlah responden sebanyak 400 orang. Hasil penelitian menunjukkan bahwa tidak terdapat perbedaan pengetahuan, persepsi risiko, dan perilaku membaca antara laki-laki dan perempuan. Faktor internal, faktor eksternal, pengetahuan, dan persepsi risiko berpengaruh terhadap perilaku membaca. Namun secara parsial, hanya pendidikan ibu, mendapatkan informasi tentang label, dan persepsi risiko yang berpengaruh secara nyata terhadap perilaku membaca label kadaluarsa., The label of expire consists of date, month, and year that created by marketer to determine the food safety and the other changes of food such as taste and nutrition. This research analyzed the impacts of the internal factor and external factor on knowledge, risk perception, and the reading behavior of expired label. This research took place at Bogor Agricultural University. The sampling method used the multistage random sampling with 400 respondents. The result showed that there was not difference between male and female respondents in knowledge, risk perception, and reading behavior of expired label. Internal factor, external factor, knowledge, and risk perception affected on reading behavior. But partially, mother’s education, information about label, and risk perception affected on reading behavior.
Keyword: kadaluarsa, pengetahuan, persepsi risiko, perilaku membaca label

Judul: Pengetahuan, persepsi, sikap, dan perilaku membaca label informasi gizi pada mahasiswa
Abstrak: Label informasi gizi merupakan label yang memuat informasi mengenai kandungan gizi di dalam produk pangan yang menjadi media sangat penting untuk mentransfer informasi mengenai karakteristik dari suatu produk pangan. Tujuan penelitian ini adalah untuk menganalisis pengaruh karakteristik individu, karakteristik keluarga, pengetahuan, persepsi, dan sikap terhadap perilaku membaca label informasi gizi produk pangan pada mahasiswa Strata Satu (S1) Institut Pertanian Bogor. Disain penelitian ini menggunakan cross sectional study dengan metode survei yang dilakukan di Kampus Institut Pertanian Bogor (IPB), Kecamatan Dramaga, Kabupaten Bogor. Penelitian ini melibatkan 400 mahasiswa IPB yang dipilih dengan menggunakan teknik multistage random sampling dengan lapis jenis kelamin. Terdapat perbedaan nyata antara responden laki-laki dan perempuan dalam hal pengetahuan, sedangkan persepsi, sikap, dan perilaku membaca label informasi gizi tidak berbeda nyata. Sikap berpengaruh nyata terhadap perilaku membaca label informasi gizi., Nutrition labels is a label that contains information about nutrition in a food product which become very important media to transferring information about characteristic in a food product. The aim of this research was to analyze the effect of individuals characteristics, family’s characteristics, knowledge, perception, and attitude on reading behavior of nutrition labels of undergraduate students of Bogor Agricultural University. The design of this research used cross sectional study with survey method which conducted in Bogor Agricultural University, Dramaga district, Bogor regency. This research involved 400 Bogor Agricultural University’s students selected by multistage random sampling based on gender. There was significant difference between male and female for knowledge, meanwhile the difference was not appear significant for perception, attitude, and reading behavior of nutrition labels. Attitude influenced on reading behavior of nutrition labels.
Keyword: label informasi gizi, pengetahuan, persepsi, perilaku membaca label, sikap

Judul: Penggunaan Teorema Homeomorphy 2-Manifold dan Teorema Euler Poincare pada Torus 𝑇�� dan Simplicial Complex 𝐾��
Abstrak: Two dimensional topological spaces are said to be homeomorphic if they have the same topological invariant, where one of topological invariant used is an Euler characteristic. Homeomorphy 2-Manifold’s Theorem and Euler Poincare’s Theorem are used to distinguish two topological spaces. Homeomorphy 2-Manifold’s Theorem uses Euler characteristic to identify two dimensional topological spaces. Euler Poincare’s Theorem is an alternative way to find Euler characteristic with Betti number, which is topological invariant as well. The objective of this paper is to investigate the homeomorphism of torus 𝑇����� and simplicial complex 𝐾�����. Topological space torus and simplicial complex 𝐾����� have the same Euler characteristic, which is two. Based on Homeomorphy 2-Manifold’s Theorem topological space torus 𝑇����� and simplicial complex 𝐾����� is homeomorphic.
Keyword: simplicial, torus, Euler, homeomorphism, topology