Pemanfaatan Limbah Ampas Tebu Sebagai Pengganti Filler Untuk Campuran Aspal Beton Jenis “Hot Rolled Sheet– Wearing Course“

Highway pavement in Indonesia generally use a mix asphalt concrete as a surface layer consisting of a mixture of constituent materials coarse aggregate, fine aggregate, filler and bitumen. HRS is a mixture suitable for use in tropical areas like Indonesia because it has high elasticity and resistance to fatigue plastic (Rantetoding, 1984). HRS mixture consists of coarse aggregate, fine and asphalt. Fine aggregate form filler, which is necessary to fill voids between the aggregate particles so as to increase the density of the mixture. In general filler used is stone ash, stone ash filler but is relatively expensive, so it is necessary to find other alternatives to the use of cheaper materials for filler substitutes standard. One of the waste materials that can be used is the waste from sugar mills bagasse. Refiners produce waste in the form of bagasse, the percentage content of chemical compounds (Silica) on bagasse ash was 70.94% which is expected to improve the quality of asphalt mix. The purpose of this research is to determine the performance of asphalt concrete type of HRS-WC when using bagasse ash filler compared with stone ash filler, with the goal of getting an alternative filler in the form of bagasse ash. Test characteristics of aggregate, filler and bitumen done before making Marshall specimens to determine whether the materialis qualified or not as asphalt mix material. This study refers to the Spesifikasi Umum Bina Marga 2010, of the Directorate General of Highways. The results showed the test aggregate, filler and bitumen, as well as all the HRS-WC mixed with bagasse ash filler and stones ash filler qualify. The use of bagasse ash filler mixed with HRS-WC increasing bitumen content is 6.95%, resulting in values, VIM: 5.96%, VMA: 21:36% and VFB: 72.12%, is higher than the HRS-WC mixture using stones ash filler that is 6.75%, with a value of VIM: 5.95%, VMA: 20.64% and VFB: 71.68%. In addition to the value of bagasse ash filler Stability: 1231.07 Kg, Marshall Quotient: 260.58 Kg / mm and flow: 4.72 mm being lower than the value of Stability: 1280.98 Kg, Marshall Quotient: 268.97 Kg / mm and flow: 4.76 mm in stone ash filler. This suggests that the HRS-WC mixture using bagasse ash filler bitumen requires more than the HRS-WC mixture using stone ash filler. From the results of this analysis indicate that the use of bagasse ash filler mixed with HRS-WC to qualify as an alternative filler materials stone ash, so that the bagasse ash can be used for asphalt concrete mix HRS-WC, in which the results are not much different from mixed HRS-WC using stone ash filler

Produksi Program Berita Feature Televisi “is IT You?” Di Cakra Semarang TV

Dalam kehidupan anak muda, banyak fenomena-femonema menarik yang dapat diulas. Program feature televisi menjadi salah satu media yang tepat untuk menampilkan fenomena tersebut. Program feature “IS IT YOU?” mengulas berbagai realita dalam kehidupan sehari-hari anak muda dengan tujuan memberikan nilai edukasi dan hiburan pada penonton, yaitu anak muda itu sendiri.Dalam pembuatan program feature televisi terdapat proses pra produksi,produksi dan pasca produksi. Tiap proses dikerjakan oleh masing-masing individu dalam tim berdasar pembagian tugas yang telah dibebankan. Terdapat pembagian tugas sebagai Produser, Penulis Naskah, Program Director, Juru Kamera, dan Penyunting gambar & grafis dalam tim “IS IT YOU?”. Penulis bertugas sebagai Program Director, juru kamera, dan penyunting gambar & grafis.Pada proses pra-produksi, berdasar arahan produser, Program Director memilih narasumber dan melakukan perencanaan pengarahan presenter dan juru kamera. Juru kamera melakukan riset peralatan dan menyusun rencana komposisi pengambilan gambar. Penyunting gambar & grafis menyusun rancangan struktur editing berdasar koordinasi dengan produser.Pada proses produksi, Program Director mengarahkan presenter untuk menggunakan bahasa dan pembawaan yang santai khas anak muda. Juru Kamera melakukan pengambilan gambar dengan komposisi medium shot dan medium close up untuk menghindari gesture tubuh presenter dan lebih menonjolkan ekspresi wajah presenter yang khas. Penyunting gambar & grafis memilih backsound groovy, memilih warna yang soft dan menggunakan teknik cut by cut sebagai ciri khas program.Berdasar testimoni penonton, program feature televisi “IS IT YOU?” merupakan program yang khas bergaya anak muda, mampu menghibur dan tetap memberikan nilai edukasi pada tiap tayangannya

Piperantha:inovasi Terapi Kombinasi Ekstrak Daun Salam (Eugenia Polyantha) dan Sirih Merah (Piper Crocatum) terhadap Peningkatan Aktivitas Fas/fas-l pada Regresi Pertumbuhan Kanker Serviks secara In Vitro

In this study, we evaluated Eugenia polyantha and Piper crocatum leaves alone and in combination for their anti-cancer properties on HeLa cells. The extraction method by using soxhlet and maceration. The phytochemical constituents of extract were evaluated by qualitative and quantitative analysis. The anti-cancer property and mechanism of the extract were evaluated by its effect on cell viability and apoptosis. Total flavonoids content was higher in maceration than soxhlet extracts. Single extracts of Eugenia polyantha alone or Piper crocatum showed better anti-cancer activity than their combination. However, Eugenia polyantha extracts showed better anti-cancer activity than Piper crocatum extracts

Higher education in Indonesia: Contemporary challenges in governance, access, and quality

This chapter presents the development of Indonesian higher education since its origins to current challenges in the fields of governance, autonomy, access, equity, quality, and internationalization. Indonesia has a massive and diversified tertiary education, including experiments in community colleges and online programs. The higher educational system remains mainly centralized, with the exception of some reforms towards financial autonomy. Insufficient public funding hinders the capacity to provide adequate teaching, research, and facilities among other aspects. The consequential rise in student fees contributes to an overrepresentation of students from Java, urban centers, and higher social classes

Antimicrobial treatment of different metal oxide nanoparticles: a critical review

Many nanomaterials can be used as metal oxides (Ti, Ag, Zn, Cu, Mg, Ca, Ce, Yt, Al). Metal oxide nanoparticles have strong antimicrobial properties. The oxides that play a large role as antimicrobial agents can be divided into two major groups based on their mechanism of action i.e., those that involve oxidation and those that inhibit the production of Reactive Oxygen Species (ROS). Previous studies have shown that, toxic metals like silver and titanium, and their metals oxides, employ the ROS-mediated mechanism that leads to oxidative stress-related cytotoxicity, cancer, and heart diseases. Oxidative stress further leads to increased ROS production and also delays the cellular processes involved in wound heal- ing. Other metal oxide nanoparticles, like Y2O3, CeO2 and Al2O3 act as free radical scavengers. Out of these, aluminium oxide nanoparticles are more effective antimicrobial agents, than the other metal oxide nanoparticles. A combination of Al2O3 and other antimicrobial agents such as TiO2 may act as ideal antimicrobial agents, along with possessing free radical scavenging activity. This critical review aims to study the antimicrobial properties of different metal oxide nanoparticles and the mechanism of action in- volved, besides comparing their efficacy to eliminate bacteria

In situ synthesis of silver nanoparticles for Ag-NP/cotton nanocomposite and its bactericidal effect

For years, nanotechnology has been considered as an important field that has opened new opportunities for extensive research. In biomedical applications, of all the metal nanoparticles, silver nanoparticles (Ag-NPs) have played an important role because of their antibacterial properties. Ag-NPs have been demonstrated to possess antibacterial properties in many applications. However, the minimum number of NPs required on the surface to prevent bacterial growth is yet to be determined. It is worthwhile studying the decrease of bacterial growth rate or the level of inhibition as a function of the size or density of NPs. Therefore, in this paper we discuss the size of the NPs that can stimulate the bactericidal property. It should also be noted that NPs larger than 100 nm might not be effective against bacteria. Moreover, this study employs polyvinyl pyrrolidone (PVP) and cellulose as reductants to form strong covalent bonds under UV light, which can help synthesize Ag-NP/cotton nanocomposites. This type of nanocomposite displays high cell viability and improved antimicrobial activity. A fairly simple application involves the use of UV light to increase particle distribution and impart bactericidal property