Publication Search

Vegetables are an important commodity, whose prices contribute to the inflation rate in some regions of Indonesia. Inflation and deflation are inseparable from the type of food and vegetable groups because the majority of the population have jobs as vegetable farmers. Selo Boyolali is a vegetable-producing region, but currently can not meet the needs of its own region. Supply of vegetables began to decrease due to pest and vegetable turnover into tobacco. If the delivery of vegetables is hampered there will be a scarcity of vegetables that lead to price increases. The length of the distribution channel has a negative impact, namely the price of commodities set by the middlemen or traders who distribute vegetables from the producers. So sometimes local farmers do not have bargaining power on vegetable pricing. This study aims to analyze the pattern of price formation and vegetable distribution in Boyolali. The analytical framework used in this research is supply chain management framework. The method used in this research is quantitative and qualitative indepth interview.

Mikrokontroler yang mewakili suatu figur sistem kendali modern telah dikemas hanya dengan mengimplementasikan sebuah chip / rangkaian terpadu, yang kemudian berkembang hingga penggunaan memori dan processor beserta elemen pendukungnya seperti register, AT command, I/O system, dan lain sebagainya. Bahkan hingga pada saat ini, mikrokontroler telah dikemas dalam sebuah modul aktif kit. Perancang sebuah sistem kendali menjadi lebih tertantang dengan hadirnya kemampuan untuk programming, sehingga perancang dapat dengan lebih leluasa membuat bentuk maupun model sistem kendali. Kemampuan modul yang bervariasi dengan berbagai aksesorisnya yang siap pakaipun telah meningkatkan keinginan lebih lanjut dalam keberagaman modul berbasis ATMEL. Salah satu penerapan sistem kendali adalah sistem kendali digital terpadu pada generator sinyal XR-2206 dengan Arduino UNO R3 yang semula menggunakan sistem kontrol analog. Dengan adanya perubahan sistem kendali dari analog ke digital harus diketahui perangkat keras dan perangkat lunak yang diperlukan untuk menunjang kinerja sistem. Sistem kendali tersebut terdiri dari 3 (tiga) bagian pokok yang masing-masing mempunyai fungsi dan peranan yang berbeda-beda, yaitu Power Supply, Sistem Kendali dan Display. Power Supply berfungsi sebagai sumber tegangan, Sistem Kendali merupakan Arduino dan Display terdiri dari LED dan LCD. Power Suply, berfungsi sebagai sumber tegangan untuk seluruh rangkaian yaitu rangkaian generator sinyal XR-2206 (12 Volt), rangkaian kendali (6 volt), dan untuk Arduino (5 volt). Arduino merupakan bagian utama yang berfungsi sebagai pengendali generator sinyal XR-2206. Tugas dari sistem kendali adalah menghidupkan dan mematikan generator sinyal, mengatur jenis sinyal keluaran, mengatur tegangan dan frekuensi sinyal keluaran dan mengatur tampilan pada indikator LED dan LCD Display. Dengan adanya perubahan sistem kendali dari analog ke digital akan diperoleh beberapa keuntungan diantaranya adalah kemudahan dalam mengoperasikan generator sinyal, akurasi besaran lebih tepat, pengembangan sistem kendali lebih mudah.   Kata kunci: Arduino, mikrokontroler, sistem kendali

Abstract: Land, water and all treasures in it are the source for people wealth. Therefore, we need to control its usage. The land usage as a chain of controlling, supplying and distribution in a well planned activity are used to give wealth to people. There are three models of it, namely closed (zoning) opened and the usage that aims at serving to the development. Indonesia applies three of them. Keyword: land usage models

Supply chain business network that explained as an organization network that involve supplier relationship upstream) and customer downstream). Effectivity of integration on supply will be the key factor for company to reach continuous improvement that make company became competitive.The difference result in applying integration pattern, could be seen at restaurant sector, dept food and beverage (hotel) and fact food restaurant. Theunderlined is that each sector are different in integration factor and the influence to company performance. Based on that problem, the research question is : how the integration pattern characteristic of supply chain and implementation ( direction and level) from each sectors. Sample amount of this research is 31 company that include of 15 restaurant, 10 dept food and beverage hotel and 6 fast food restaurant.Based on the result of regression equation knows that integration pattern supply chain management positively affecting dept food and beverage company performance in Semarang. Variation of variabel company performance that can be explained by variation of integration pattern supply chain management is 69% and the rest 31% affecting by another variable outside variable that used in this research.There is a significance difference between restaurant in Semarang that consist of restaurant, food and beverage division and fastfood restaurant with integration pattern supply chain management and company performance.

Study for the effect of share trading days to the daily share returns in Stock Exchange has been carried out most invarious countries. Overseas studies produce consistent findings that the daily share returns results in negative impact on Monday (Monday Effect) and resulting inpositive impact on Friday (Week End Effect). Those effects are called as day of the week effect. The similar studies carried out Indonesia have not obtained consistent findings as similar as overseas including overseas studies make use of Ordinary Least Squares (OLS). Whereas this study does not utilize this approach, as most of the assumptions could not be fulfilled. Technical Approaches dealt with the share returns calculation dominantly affect to the amount of daily share return. These are due to the facts that the irrational factors also used by the investors to do the transactions. Consequently, the demand and supply of the share are also influenced by the behaviour of the investors them elves. Statistical approach used for examining the day effects is Autoregressive Moving Average (ARIMA) Approach. This approach is chosen as there is no hetero scedasticity or there is an existence of stationary data. To examine the difference of share trading day effects to the share returns this study utilizes Analysis of Variance (ANOVA), 244 daily aggregate share price indexes (IHSG) and LQ45 Indexes are used for this study. The findings of this study suggest that (1) all of the share trading days give a positive impact on the share returns, (2) daily aggregate share price indexes (IHSG) do significantly affect the share returns on Thursday and (3) LQ45 Indexes do significantly affect the share returns on Thursday and Friday. These findings imply that the investors should consider the day effects in deciding to be involved in share trading so that they could maximize their future returns.