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"This monograph presents new and elegant proofs of classical results and makes difficult results accessible. The integer programming models known as set packing and set covering have a wide range of applications. Sometimes, owing to the special structure of the constraint matrix, the natural linear programming relaxation yields an optimal solution that is integral, thus solving the problem. Sometimes, both the linear programming relaxation and its dual have integral optimal solutions. Under which conditions do such integrality conditions hold? This question is of both theoretical and practical interest. Min-max theorems, polyhedral combinatorics, and graph theory all come together in this rich area of discrete mathematics. This monograph presents several of these beautiful results as it introduces mathematicians to this active area of research."

"Penelitian ini membahas tentang gambaran tingkat risiko ergonomi dan keluhan subjektif muskuloskeletal disorders pada pekerjaan pengantongan Pupuk Urea PT. Pupuk Sriwidaja Palembang Tahun 2016. Faktor risiko yang dikaji dalam penelitian ini adalah faktor risiko ergonomi (postur kerja, durasi, frekuensi dan beban) dengan metode RULA dan REBA serta faktor individu (umur, masa kerja, dan kebiasaan merokok). Penelitian ini bersifat deskriftif dengan desain studi cross sectional. Sampel penelitian ini adalah 72 pekerja pengantongan pupuk urea.Hasil penelitian menunjukkan risiko tinggi terdapat pada proses kerja penyusunan karung di atas pallet. Risiko sedang terdapat pada proses kerja mengisi urea dan penjahitan. Sedangkan risiko rendah terdapat pada proses kerja melipat inner bag dan menggunting benang. Keluhan subjektif Muskuloskeletal Disorders terbanyak adalah pinggang (87,5%), bahu kanan (86,1%) dan bahu kiri (86,1%). Untuk itu perlu upaya pengendalian secara teknik dan administratif untuk menurunkan tingkat risiko dan keluhan Muskuloskeletal Disorders.

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This study about description of ergonomics risk level and musculoskeletal disorders complaints from the job fertilizer packing at PT. Pupuk Sriwidjaja Palembang 2016. The risk factors studied in this study is ergonomics risk factors (work posture, duration, frequency and load) with RULA and REBA methods and also individual risk factors (age, working time, and smoking). This research is descriptive with cross sectional study design. The sample study are 72 workers packing fertilizers.Result of this study is high risk level is found in working process arranging of sack in pallet. Medium risk level are found in working process filling urea and sewing sacks. While, low risk level are found working process folding inner bag and cutting the yarn. Musculoskeletal Disorders complaints is the most at waist (87,5%), right shoulder (86,1%), and left shoulder (86,1%). It is important to control the risk with engineering control and administrative control."

"ABSTRACTPenelitian ini mendesain dan menyeimbangkan lini produksi packing pada perusahaan dengan inisial PT. A. W. F. C. I. di Indonesia. Tujuan dari penelitian ini adalah untuk mengidentifikasi kegiatan yang tidak ada nilai tambahnya pada produksi salah satu produk yang mempunyai lead time terbesar, melakukan perbaikan pada alur produksi produk tersebut dengan menggunakan time study analysis, dan menghitung penghematan yang terjadi. Pendekatan perbaikan menggunakan waste management, ergonomis dan line balancing Pada sistem yang baru dengan mengurangi waste dari sistem yang lama mencapai penghematan waktu sebanyak 27 , efisiensi keseimbangan dari line produksi meningkat 33 , dan produktifitas mengalami peningkatan 0.865.

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ABSTRACTThis research designs and balances the packing production line in the company with initials PT. A. W. F. C. I. in Indonesia. The purpose of this study is to identify activities that have no added value on the production of one of the products that have the greatest lead time, make improvements in the production flow of the product by using time study analysis, and calculate the savings that occur. Approach to improvement using waste management, ergonomic and line balancing In the new system by reducing waste from the old system reaches 27 savings time, the efficiency of the balance of the production line increased 33 , and productivity increased 0.865."

"Summary: "Ashley is offered the chance to have weight-loss surgery by her exacting grandmother, who promises to provide tuition to her dream college in return"-"

"Berbagai macam penelitian yang dilakukan di dunia untuk mempelajari efek label Front-of-Package Traffic Light FOP TL terhadap daya terima dan pemahaman. Meskipun demikian, studi mengenai daya terima serta pengaruh dari label FOP TL terhadap pemahaman informasi di Indonesia masih terbatas. Tujuan dari penelitian ini adalah untuk mengetahui daya terima dan kemampuan untuk memahami informasi gizi dengan menggunakan label FOP TL pada kelompok dewasa muda. Terdapat sebanyak 18 orang karyawan di TK Lentera Insan, Depok, Jawa Barat yang menjadi subjek penelitian. Pengukuran pemahaman awal dilakukan sebelum intervensi dengan menggunakan imaginary packaging produk kemasan yogurt, mie instan, dan wafer. Selanjutnya, dilakukan pemberian perlakuan berupa dua kali sesi edukasi cara menggunakan dan membaca label FOP TL. Satu minggu setelah sesi edukasi terakhir dilakukan pengukuran daya terima pemahaman dengan menggunakan label FOP TL yang terdapat pada imaginary packaging kategori produk kemasan yang sama. Perbedaan pemahaman antara pre-test dan post-test dianalisis dengan menggunakan paired t-test. Label FOP TL memiliki daya terima yang tinggi. Label FOP TL mampu membantu konsumen untuk memahami informasi gizi lebih baik dibandingkan dengan label nutrition facts panel NFP dibuktikan dengan adanya perbedaan yang signifikan pada kategori nutrition label use task yang lebih kompleks p

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Several studies have investigated the effect of Front of Package Traffic Light FOP TL on consumers acceptability and understanding. Nevertheless, there is lack of study focus on consumer friendliness and comprehension of FOP TL in Indonesia. The aim of this study was to identify acceptability and understanding using FOP TL among young adults. A total of 18 young adults whose work status as full timer employee in Pre School Lentera Insan at Depok, West Java were recruited. Baseline data of objective understanding were measured prior intervention by displaying imaginary packaging of 3 different product categories yogurt, instant noodles, and wafer, which designed for this study, varying in nutritional value. Afterwards, subjects received weekly education session for 2 weeks about how to use and read FOP TL label. A week after the last education session, subjects were asked about their acceptability and nutrition label understanding of FOP TL were measured by displaying the same category of products. The mean differences in score between pre test and post test were evaluated with paired t test. FOP TL received high score for consumer friendliness. Traffic Light label help consumer to understand the information in nutrition label better than nutrition facts panel NFP showed by significant differences in more complex nutrition label use task."