Effect of Continuity Rate on Multistage Logistic Network Optimization under Disruption Risk

Modern companies have been facing devastating impacts from unexpected events such as demand uncertainties, natural disasters, and terrorist attacks due to the increasing global supply chain complexity. This paper proposes a multi stage logistic network model under disruption risk. To formulate the problem practically, we consider the effect of continuity rate, which is defined as a percentage of ability of the facility to provide backup allocation to customers in the abnormal situation and affect the investments and operational costs. Then we vary the fixed charge for opening facilities and the operational cost according to the continuity rate. The operational level of the company decreases below the normal condition when disruption occurs. The backup source after the disruption is recovered not only as soon as possible, but also as much as possible. This is a concept of the business continuity plan to reduce the recovery time objective such a continuity rate will affect the investments and operational costs. Through numerical experiments, we have shown the proposed idea is capable of designing a resilient logistic network available for business continuity management/plan

The Influence of Nano-Encapsulation of Melastoma malabathricum L. Fruit Extract to Lipid Profile of Broiler Chicken

The aim of this research was to examine the impact of nano encapsulation of Melastoma malabathricum L. fruit extract as feed additive that was given through drinking water towards lipid profile of broiler chicken. Experimental design used in this research was completely randomized design using six increment treatments of Melastoma malabathricum L. fruit extract to the drinking water of the chicken each with five repetitions. Detail of treatment rations were as follow: T0 drinking water treatment without feed additive (negative control), T1 drinking water treatment + 0.2 mg/kg body weight simvastatin (positive control), T2 drinking water treatment + 1.5% Melastoma malabathricum L. fruit extract, T3 drinking water treatment + 3.0% Melastoma malabathricum L. fruit extract, T4 drinking water treatment + 1.5% nano encapsulation of Melastoma malabathricum L. fruit extract, T5 drinking water treatment + 3.0% nano encapsulation of Melastoma malabathricum L. fruit extract. Observed Parameters were the blood lipid profile, cholesterol of meat and crude fat of meat. The results showed that adding the nano encapsulation of Melastoma malabathricum L. fruit extract did not give significant effect (P>0.05) on blood lipid profile and crude fat of the thigh and breast of the broilers. Addition of nano encapsulation of Melastoma malabathricum L. fruit extract gives real impact (P<0.05) toward reduction of broiler’s meat cholesterol. The conclusion of this research is that giving nano encapsulation of Melastoma malabathricum L. fruit extract is able to improve lipid profile of broiler, which is in the amount of meat’s cholesterol

ANALYSIS OF STUDENTS' LEARNING DIFFICULTIES ON THE CONCEPT OF BUFFER SOLUTION USING FOUR-TIER MULTIPLE CHOICE DIAGNOSTIC TEST

This study aims to determine the level of students' understanding of each indicator of the buffer solution material and to determine the most difficult indicator in understanding the buffer solution material using the Four-Tier Multiple Choice diagnostic test. This type of research uses a descriptive type of research using a qualitative approach. The subjects of this study were students of class XI Madrasah Aliyyah Swasta Darul Ihsan as many as 15 students who were selected using the simple random sampling technique. The research instrument used was the Four-Tier Multiple Choice diagnostic test instrument sheet and student interview sheets. The results of this study showed that the average percentage of students who understood the concept was 32.3%, did not understand the concept was 38.1%, misconception was 20.6% and the error was 9%. Based on this research, it was found that the most difficult indicator to understand is the indicator to determine the relationship between the buffer solution and the concept of chemical equation and the indicator to calculate the pH of the acid buffer solution. So it can be concluded that the students of class XI Madrasah Aliyyah Private Darul Ihsan have difficulty in understanding the material of the buffer solution

Perencanaan Optimasi Distribusi Darah di Kota Makassar

Dalam beberapa tahun terakhir, telah ada banyak diskusi tentang isu regionalisasi fasilitas bank darah. Proses\ud distribusi suplai darah merupakan faktor penting dari sistem kesehatan di seluruh dunia dan termasuk proses\ud pemodelan dan analisis sistem seperti perspektif optimasi jaringan rantai pasok. Dalam penelitian ini, kami\ud mengembangkan model optimasi jaringan untuk transportasi darah dan model alokasi distribusi darah di Kota\ud Makassar. Saat ini, ada dua fasilitas bank darah utama di kota yang dioperasikan oleh pemerintah (UTDP) dan\ud organisasi palang merah setempat (PMI). Setiap rumah sakit akan terhubung ke salah satu dari fasilitas bank\ud darah. Fasilitas bank darah akan secara berkala memasok kebutuhan darah rumah sakit untuk setiap periode.\ud Proses pasokan tergantung pada kapasitas maksimum setiap fasilitas bank darah regional. Kami menyajikan\ud algoritma untuk menentukan berapa banyak bank darah yang akan disiapkan, dan dimana akan ditempatkan,\ud bagaimana mengalokasikan rumah sakit dan bank darah dan bagaimana rute operasinya, sehingga didapatkan\ud total biaya yang optimum. Pemodelan optimasi pendistribusian ini ditentukan dengan asumsi adanya pembatasan\ud kapasitas pada setiap pusat darah, atau dikenal dengan model Capacitated Facility Location Problem (CLFP).\ud Perhitungan simulasi software CPLEX Optimization Studio Version 12.2 didasarkan pada jumlah pusat darah,\ud jumlah rumah sakit, jumlah permintaan darah setiap rumah sakit selama satu tahun terakhir, kapasitas pusat\ud darah, dan jarak antara pusat darah dengan rumah sakit dengan mempertimbangkan 9 skenario kapasitas bank\ud darah. Pada penelitian ini didapatkan hasil satu kombinasi solusi optimal dengan total biaya terendah yaitu\ud 156797 berada pada jumlah kapasitas pusat darah A (PMI) 30000 kantong darah dan pusat darah B (UTDP)\ud 20000 kantong darah. Dengan Jalur distribusi pusat darah A ke 14 rumah sakit dan pusat darah B ke 3 rumah\ud sakit

ANALISIS FAKTOR-FAKTOR YANG BERHUBUNGAN DENGAN TINGKAT KEPUASAN KERJA PADA KARYAWAN DI PT.X

Kepuasan kerja sangat penting untuk meningkatkan motivasi pekerja sehingga dapat berpengaruh kepada produktivitas karyawan dan perusahaan. Dampak dari ketidakpuasan kerja dapat berupa menurunnya produktifitas,turnover dan absensi karyawan meningkat. Tujuan dalam penelitian ini adalah menganalisis hubungan antara pekerjaan, supervisi, gaji, kesempatan promosi dan rekan kerja dengan tingkat kepuasan kerja karyawan PT.X.Penelitian ini menggunakan explanatory research dengan pendekatan cross sectional.Populasi dalam penelitian ini sebanyak40 orang. Jumlah sample yang digunakan sebanyak 40 karyawan PT.X dengan metode total sampel. Pengambilan data dilakukan dengan menggunakan kuesioner JDI (Job Descriptive Index).Analisis statistik menggunakan uji korelasi Rank Spearman.Hasil penelitian menunjukkan ada hubungan antara pekerjaan itu sendiri (sig = 0.030), Supervisi (sig = 0,0001), Gaji (sig = 0,005) dan kesempatan promosi (sig = 0,019) dengan tingkat kepuasan kerja. Hanya variabel rekan kerja (sig = 0,106) yang menunjukkan tidak ada hubungan dengan tingkat kepuasan kerja. Sebanyak 52,5% karyawan merasa puas dengan pekerjaannya.Untuk Meningkatkan kepuasan kerja karyawan sebaiknya perusahaan memberikan karyawan pekerjaan yang bervariasi untuk mengindari kebosanan dalam bekerja, Melakukan pendekatan secara informal dari atasan ke bawahan dengan melakukan interaksi tidak hanya diwaktu kerja, Memperbaiki sistem pembayaran gaji atau imbalan kepada karyawan sehingga dapat meningkatkan kepuasan kerja pada karyawan. Kata Kunci: Kepuasan Kerja, Faktor Kepuasan Kerj

Implementation Of The Ta'shil Method In Understanding The Ta'lim Al Mutaallim Book At The Tahfidzul Quran Al Iman Islamic Boarding School

This study discusses the Ta'shil Method in understanding the Ta'lim Al Mutaallim Book, including: (1) Implementation of the Ta'shil Method in understanding the Ta'lim Al Mutaallim Book on Aqidah Akhlak material. (2) Strengths and weaknesses of the Ta'shil Method in understanding the Book of Ta'lim Al Mutaallim on Aqidah Akhlak material. The design used in this study is field research because the researchers went directly to the field to get data that were in accordance with the facts and made observations to collect data related to research on the implementation of the Ta'shil Method at Islamic boarding school al Iman Sedayulawas Lamongan in understanding the book Ta'lim al Mutaallim on Akidah Akhlak material, the results of this study are descriptive data obtained from interviewees as well as data that has been written and from the observations of researchers. The research was carried out at the Tahfidzul Qur'an Al-Iman Islamic Boarding School located in Sedayulawas village, Brondong district, Lamongan district, East Java province, this Islamic boarding school was founded in 2016 and was taken care of by Ustad Sofi Muallim. The results showed that: (1) Implementation of the Ta'shil method in understanding the Book of Ta'lim Al Mutaallim on the Aqidah Akhlak material at the Tahfidzul Quran al Iman Al Iman Al Iman Sedayulawas Lamongan First, Tadarruj (gradual), Second, Tikrar (Repeating), Third, Focus, Fourth, good mentoring. (2) The supporting factor for the ta'shil method at the Al Iman Islamic boarding school is that it is easy for students to build a stronger and more perfect understanding framework because it starts from the basics and always continues between books. The inhibiting factor for the implementation of the first ta'shil, the use of the ta'shil method, a cleric must attend class every day, if the ustad is unable to find a temporary substitute and this is not easy because he has to find a cleric who masters the book. The ta'shil method is a relatively new method in the Islamic boarding school environment, this makes people not sure about the results of this method

Overview of Depression Levels in Elderly People at Tresna Werdha Nirwarna Puri Samarinda Social Home

Background : Depression is a mental disorder characterized by a mood that experiences stress, loss of pleasure or interest, feelings of guilt or low self-esteem, impaired eating or sleeping, reduced energy and concentration (Narulita, 2009). One tool for measuring depression is using the Geriatric Depression Scale (GDS) scale. Objective : To determine the incidence of depression in the elderly that occurred at the Tresna Werdha Nirwana Social Home Puri Samarinda. Method : The study design used a descriptive research type with a survey approach. Performed in May 2019 with 30 respondents at the Tresna Werdha Nirwana Social Home Puri Samarinda. Results : 23 elderly did not experience depression and 7 elderly experienced mild depression. Conclusion : Older people who are not depressed may be caused by coping and good social support. And the elderly who experience mild depression are caused by poor social support, a history of illness and age.Keywords : Depression, elderl

Extraction of Nickel(II) and Zink(II) by Using A Solvent Impregnated Resin Containing 1-Nitrophenyl-3-methyl-4-octylbenzoyl-5pyrazolone

The study on the equilibrium distribution of nickel(II) and zink(II) between aqueous solution and macromolecular resin impregnated with 1-nitrophenyl3-methyl-4-octylbenzoyl-5-pyrazolone (HNPMOBP, HL) have been conducted. In this research, the effects of pH values, and metal ion concentration on the yield were investigated. Analysis of the results shows that the extraction of the two metal ions can be explained assuming the formation of metal complexes in the resin phase with a general composition ML2. An extraction reaction is proposed and the equilibrium constants of the complexes were determined to be -6.15 and -3.45. The efficiency of the resin in the separation of nickel (II) and zink(II) is provided according to the separation factors. Under the experimental conditions employed, pH50 values for zink (II) and nickel(II) were respectively found to be at 2.76 and 4.95

PENGETAHUAN DAN MINAT MASYARAKAT PETERNAK UNTUK MENERAPKAN TEKNOLOGI INSEMINASI BUATAN

Artificial insemination (AI) is one of the appropriate techniques in increasing cattle productivity and to improve cow genetics. However, not all people are interested in implementing IB Technology. This study aims to explain how to increase the interest of the breeder community to apply artificial insemination technology. This study uses a descriptive quantitative approach. The total sample of 33 respondents was taken by purposive sampling, namely farmers who have at least one calf produced by means of artificial insemination (IB) technology. The analysis used for knowledge and interest variables is descriptive analysis, regression analysis, and T-Test. From the research results obtained knowledge and interest are very influential in improving the application of artificial insemination (IB) technology. The contribution of increasing each variable is knowledge by 24.4% and interest by 48.8%. From these results, it can be concluded that the interest and knowledge of the farming community about artificial insemination technology is very influential or significant based on the results of the T-Test which shows that the substantial value in the attitude of farmers is (0.000) &lt; (0.05). With the implementation of artificial insemination technology carried out by farmers, the community is expected to be able to increase the productivity and quality of their livestock genetic products Keywords: Breeding Community; Interest; Knowledge; Artificial Insemination Technolog