The problem of the level of consumer trust and satisfaction is important in the trade business. However, not all products that have been and have not been regulated have adequate after-sales service. The purpose of this study was to determine the effect of after-sales service, product quality and product warranty on customer satisfaction. The number of samples in this study amounted to 100 consumers from a population of 180 consumers and are active consumers of PT Karya Bahari Abadi Jakarta. The sampling technique is by accidental sampling. The data collection technique is primary data or data taken directly from the respondents through a questionnaire. This study uses multiple linear regression and comparative analysis for data analysis with the help of SPSS Ver. 21, This study obtained the results that the quality product, after-sales service, product guarantee has a positive effect simultaneously on customer satisfaction, quality product, after-sales service, product guarantee has a partial positive effect on customer satisfaction. Through data processing, researchers can provide input or advice to companies, namely companies are expected to be able to maintain product quality that has been rated well by customers and pay more attention to after-purchase services to create satisfaction which ultimately impacts on customer loyalty.

The purpose of this research is to determine the determinants of choice variables for MSME companies in Cimahi when it comes to using e-commerce. In this study, the Theory of Planned Behavior (TPB) is used as a theoretical framework to construct research hypotheses. The earliest stages of the research began with the collection of primary data in the form of questionnaire responses from Cimahi chips SMEs, with a total of 148 respondents filling out the questionnaire. The acquired data will next be processed using various linear regression methods. According to the findings of the study, Cimahi chip SMEs have a favorable attitude toward e-commerce adoption. They also include the influence of social norms as a factor to consider when adopting e-commerce. Perceived behavioral control influences e-commerce adoption as well. Based on the findings of the research, footwear MSMEs that have not used e-commerce should analyze the benefits of e-commerce for business, while MSMEs that have used e-commerce can assess the benefits and restrictions of utilizing e-commerce. The government can also help MSMEs adopt e-commerce by giving training, constructing suitable infrastructure, and establishing applicable legislation.

Social integration is a unitary condition of living together from various socio-cultural system units, ethnic groups and communities to interact and work together. Social integration as a reflection of the quality of this relationship, if applied to business actors, will increase the value chain for their business. So that the purpose of implementing this program is to create superior milkfish products through the creation of "Social Integration Empowerment" for business groups in Semarang City through the establishment of "Semarang Milkfish Industrial Community". So it is hoped that it can develop synergy between entrepreneurs and community support for the creation of superior products in the region. The program implementation method begins with an integration process to form the Semarang Milkfish Industry community. Then analyze the problems being faced by the community through action research. The next step is to organize meetings which will be followed by building a common understanding, so that the problems that will be handled can be ascertained. Based on these problems, the team and the community will test the action/work program that will be carried out together. After the mutually agreed work program is implemented, the next stage is evaluation and reflection.

Game online adalah sebuah situs game/bermain di dunia maya yang terhubung melalui internet. Remaja yang bermain game online menghabiskan waktu lebih dari 4 jam/hari dan mengalami kecanduan sehingga dapat mempengaruhi atau menghambat aktivitas lainya. Salah satu dampak negatif dari bermain game online terlalu lama adalah dapat mempengaruhi kurangnya kualitas tidur. Untuk mengetahui hubungan kecanduan game online dengan kualitas tidur pada remaja di SMK Negeri 5 Kabupaten Tangerang. Penelitian ini merupakan penelitian kuantitatif menggunakan desain analisis korelasi dengan pendekatan cross sectional. Teknik sampel yang digunakan nonprobability sampling dengan teknik purposive sampling dengan jumlah sampel sebanyak 127 responden. Pengumpulan data menggunakan kuesioner. Analisis data menggunakan analisis univariat dan bivariat menggunakan uji chi square. Didapatkan hasil uji chi square nilai p-value (0,004) < (0,05), artinya terdapat hubungan antara kecanduan game online dengan kualitas tidur pada remaja di SMK Negeri 5 Kabupaten Tangerang. Sebagian besar responden mengalami kecanduan game online berat dan kualitas buruk. Remaja disarankan untuk mengatur waktu agar dapat mengurangi intensitas bermain game online, dan lebih banyak melakukan aktifitas diluar dan disarankan agar lebih bersosial sehingga tidak terlalu bergantung pada game online terlalu lama, dan diharapkan penelitian ini dapat menjadi bahan referensi dan menjadikan sumber informasi dasar bagi peneliti selanjutnya.

Garbage has become a national problem and a very important issue in the environment. In essence, waste will not decrease or run out, in fact it will continue to increase along with the increase in population. In the waste collection system in both RTs, each household provides a sack or trash bag as a place for collecting plastic waste. Plastic waste that has been collected for 1-2 weeks will be exchanged with waste collectors who have collaborated at the waste bank post in each RT. It is hoped that the establishment of a waste bank can help reduce the amount of waste that is disposed of in landfills. Waste that can be recycled will be sorted and processed further.

One mathematical model in the form of a system of nonlinear ordinary differential equations is the predator-prey model. The predator-prey model explains population changes of one prey population and one predator population due to changes in time. The radial basis function network method is used to find a numerical solution to the predator-prey model. The radial basis function network method can directly approximate the function and derivative of the prey-prey model using a basis function. The basis function used is a multiquadric basis function. Numerical solutions using the radial basis function network method obtained from this research show high accuracy and low error. The absolute error obtained from the two simulations with ?t = 0.01 each is 0.0066 in the first simulation and 0.022 in the second simulation. The errors obtained are relatively small because each only represents 0.66% of the initial value of the first type and 0.5% of the initial value of the second type. This shows that the radial basis function network method is efficient in calculating the predator-prey model solution.

Sampai saat ini, masih banyak kendala yang dihadapi peternak broiler di Indonesia. Indonesia memiliki suhu dan kelembapan tinggi yang mempengaruhi perkembangbiakan mikroorganisme seperti bakteri, virus dan mikroorganisme pathogen lainnya yang berdampak terhadap pertumbuhan broiler. banyak peternak menggunakan antibiotik (Antibiotic Growt Promotor/AGP) sebagai upaya melindungi ternak dari penyakit dan melindungi kerusakan pakan sekaligus mempercepat pertumbuhan ternak. Prinsip mekanisme kerja antibiotik adalah mengurangi populasi bakteri di dalam saluran pencernaan sehingga meningkatkan penyerapan zat makanan untuk memacu pertumbuhan ternak. Pemakaian antibiotik pada ternak dapat menyebabkan resisten bakteri patogen yang dapat membahayakan kesehatan konsumennya

Pembiasaan makan merupakan salah satu langkah dalam usaha domestikasi yang penting untuk langkah awal ikan di budidayakan. Domestikasi adalah upaya menjinakan dan mengadaptasi ikan dari kehidupan liar (habitat asli) kelingkungan budidaya kerusakan lingkungan, pencemaran, perubahan iklim global, introduksi spesies ikan asing dan teknik penangkapan yang tidak ramah lingkungan (destructive fishing).

Kondisi demikian diperlukan upaya untuk mencari pakan sumber protein lain sebagai alternatif bungkil kedelai pada ransum unggas. Bahan pakan tersebut disyaratkan tersedia secara kontinyu, produksinya terkonsentrasi pada suatu tempat dan secara sosial dapat diterima oleh masyarakat. Salah satu bahan pakan tersebut adalah bungkil inti sawit (palm kernel meal) yang merupakan hasil samping agroindustri pengolahan inti sawit (kernel meal) menjadi minyak sawit (palm kernel oil)

Indonesia merupakan negara yang kaya akan sumber daya alam, baik dari bidang pertanian maupun peternakan. Namun seiring meningkatnya jumlah penduduk dan taraf  hidup masyarakat, memerlukan lebih banyak energi untuk memenuhi kebutuhannya. Kebutuhan energi sebenarnya tidak lain adalah energi yang dibutuhkan untuk menghasilkan dan mendistribusikan secara merata sarana-sarana pemenuhan kebutuhan pokok manusia.
Pemakaian bahan bakar fosil (minyak dan batubara) secara besar-besaran sebagai penyedia sumber daya energi telah terbukti ikut menambah beratnya pencemaran lingkungan