192 research outputs found

    Konsep Infrastruktur Hijau pada Area Khatulistiwa Park Kota Pontianak

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    Climate change due to increasing global warming demands human habits to change. Eco-friendly lifestyles are being implemented in some countries as well as in Indonesia. Evidenced by the start popping up environmentally friendly buildings and green open areas. This study examines the elements of green infrastructure at Khatulistiwa Park Pontianak City which includes appropriate land use, source and material cycle, health and comfort of space, management and building environment. Khatulistiwa Park as a conservation area of endemic plants, typical culinary Pontianak and West Kalimantan is very precisely built in the area of Tugu Khatulistiwa which is one of the historic buildings as an icon of Pontianak City. Use of building materials on the Khatulistiwa Park should pay attention to the impression and character that want to be displayed in the building view because the selection of materials will directly show the texture of the display. A shady environment with many plants around will lower the temperature of the area. Preparation of heat shading which serves as a heat retention fins. Access to the Equator Park area can use most of the land transportation in the form of motorbikes, cars, public transport and taxis, also accessible via water transportation

    Pengaruh Ketebalan dan Komposisi Media terhadap Pertumbuhan dan Hasil Jamur Merang

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    Jamur merang dapat tumbuh pada media yang berasal dari limbah pertanian yaitu jerami padi, hal ini disebabkan karena jerami mempunyai kandungan selulosa yang tinggi, jerami juga dapat dikomposkan dengan mudah.Selain itu jamur merang dapat juga tumbuh pada media lainnya seperti kulit buah kopi, ampas batang aren, limbah kelapa sawit, ampas sagu, sisa kapas, ampas tebu, kulit buah pala dan lain sebagainya. Dalam proses pertumbuhan jamur merang selain tergantung pada nutrisi yang tersedia dalam media juga dipengaruhi faktor lingkungan. Ketebalan dan cara penempatan media tumbuh akan menciptakan kondisi lingkungan terutama suhu, kelembaban. Penelitian ini bertujuan untuk mengetahui pengaruh ketebalan dengan jenis media yang digunakan terhadap pertumbuhan dan hasil jamur merang,.Penelitiandilakukandalam "kumbung" (rumah jamur)di DesaMangaranKecamatanJenggawah, KabupatenJember. Penelitian ini disusun dengan pola dasar Rancangan Acak Lengkap yang terdiri dari 2 faktor dengan 3 ulangan, faktor pertama adalah ketebalan dan faktor kedua adalah komposisi media. Hasil penelitian menunjukkan(1) tidak terdapat interaksi antara perlakuan ketebalan dan komposisi media terhadap semua parameter pertumbuhan dan hasil jamur merang, (2) media kotoran ayam berpengaruh nyata terhadap jumlah total seluruh tubuh buah, dimana media kotoran ayam memberikan hasil yang tertinggi, dan (3) perlakuan ketebalan media berpengaruh tidak nyata terhadap pertumbuhan dan hasil jamur merang.

    Studi Eksperimen Pada Investment Casting Dengan Komposisi Ceramic Shell Yang Berbeda Dalam Pembuatan Produk Toroidal Piston

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    Piston yang terbuat dari bahan paduan aluminium dapat dibuat dengan investment casting. Porositas dan kekasaran permukaan yang tinggi sering terjadi pada produk cor hasil investment casting. Salah satu penyebabnya adalah kualitas ceramic shell yang kurang baik, sehingga diperlukan penelitian tentang komposisi ceramic shell pada investment casting terhadap kualitas produk, kekasaran permukaan, dan porositas produk cor. Eksperimen untuk membuat produk toroidal piston dilakukan dalam empat tahap. Tahap pertama adalah pembuatan master pola, cetakan pola dari silicon rubber, duplikasi pola lilin, dan perakitan pohon lilin. Tahap kedua pembuatan ceramic slurry dengan komposisi: tipe 1 (95% alumina dan 5% gipsum), tipe 2 (90% alumina dan 10% gipsum), tipe 3 (85% alumina dan 15% gipsum), dan tipe 4 (80% alumina dan 20% gipsum). Proses coating pada pohon lilin dilakukan hingga ketebalan 10 mm ( 5x pelapisan primer dengan ceramic slurry dan 3x pelapisan sekunder dengan pasir silika). Tahap ketiga adalah dewaxing pada temperatur 120ºC, kemudian sintering pada temperatur 25 - 340ºC dan 340 - 730ºC dengan masing-masing holding time 30 menit. Tahap keempat adalah pengecoran dengan temperatur 700°C. Hasil produk cor dilakukan pengukuran kekasaran permukaan dengan Surface Roughness Tester dan pengukuran porositas kuantitatif dilakukan dengan cara menghitung perbandingan volume porositas terhadap volume total spesimen. Hasil penelitian menunjukan bahwa penambahan gipsum dalam ceramic slurry sebesar 5% dan 10% telah menghasilkan porositas mikro, sedangkan 15% dan 20% menghasilkan porositas mikro dan rongga udara pada produk cor. Selain itu, penambahan gipsum dalam ceramic slurry (5% hingga 20%) menghasilkan kekasaran permukaan dari 7,71μm meningkat hingga 11,36μm dan porositas produk cor dari 5,16% meningkat hingga 15,38%

    Potency of Medicinal Plants for Eradication of Avian Influenza : in Vitro Test on Vero Cells

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    Some of medicinal plants indicate their potency as anti-viral such as Sambiloto (Andrographis paniculata Nees), Temu Ireng (Curcuma aeruginosa L.), Beluntas (Pluchea indica L.) Sirih Merah (Piper crocatum) and Adas (Foeniculum vulgare). Avian Influenza (AI) H5N1 strain viruses used in this study was isolated from field in Cikole area, West Java in July 20th 2007. To explore the potency of medicinal plants as anti-viral substance, the consecutive assays were performed by virus infection inhibition test in in vitro study using Vero cells. After the Vero cells were growing confluently, they were treated with sterilized-extract of medicinal plants either in single or combination. Furthermore, the culture cells were infected with AI H5N1 strain virus, then incubated at 37oC and examined for cytopathic effect (CPE) microscopically. The result showed that extract of Sambiloto and combination of Sambiloto and Temu Ireng were stronger than others in inhibition of virus attachment and infection to the cells. The Vero cells still alive up to 3rd day post infection with AI H5N1 virus after treatment with Sambiloto and Temu Ireng. In conclusion, extract of Sambiloto and Temu Ireng showed their potency as candidate for anti-viral substances that may needed for eradicating AI infection

    Pengaruh Tingkat Stres Dan Kadar Kortisol Dengan Jumlah Folikel Dominan Pada Penderita Infertilitas Yang Menjalani Fertilisasi Invitro

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    Tujuan: Mempelajari hubungan antara tingkat stres dan kadar kortisol darah dengan jumlah folikel dominan pada pasien infertilitas yang menjalani prosedur fertilisasi in vitroBahan dan Metode: Studi ini merupakan penelitian analitik cross sectionaldi dua klinik infertilitas di Surabaya selama 4 bulan. Didapatkan 30 subyek penelitian yang diambil data mengenai tingkat stres dengan menggunakan 2 kuisioner yaitu Percieved Stres Scale-10 (PSS-10) dan Infertility Reaction Scale (IRS) dan kadar kortisol darah sewaktu pagi. Subyek penelitian kemudian menjalani prosedur stimulasi ovarium dan dilakukan penghitung-an jumlah folikel dominan sebelum dilakukan tindakan ovum pick upHasil: Dengan menggunakan hasil analisa statistik korelasi Spearman didapatkan hasil hubungan negatif antara tingkat stres menggunakan skoring PSS-10 (r=0,64; p<0,01) dan juga IRS (r=0,83; p<0,01) dengan jumlah folikel dominan. Didapatkan pula hubungan negatif antara kadar kortisol darah dengan jumlah folikel dominan (r=0,80 p<0,01).Simpulan: Tingkat stres dapat berdampak pada jumlah folikel dominan. Kadar kortisol yang tinggi dapat menyebabkan jumlah folikel dominan semakin menurun

    Persepsi Masyarakat terhadap Pelayanan Publik Bidang Administrasi Kependudukan Pasca Pemekaran di Kecamatan Ungaran Barat Tahun 2017

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    Administration of population is one form of public service that must be held by the Local Government related to basic services of life. Subdistrict as government agencies, are required to provide excellent service (one of which is the settlement administration services) to the public. Good public services can be achieved if accompanied by an excellent resource officers. The aim of research to find out the perception of public perceptions of public services, especially in the field of population administration at the district office Ungaran Barat, Semarang regency in 2017. Efforts to address concerns and objectives of research carried out using public service indicators that have been developed by Zeithemal, Parasuraman &amp; Berry consisting of tangibles, relibility, responsiveness, competence, courtesy, credibility, security, access, communication, and understanding the costumers. This research uses descriptive quantitative research methods, which dianalisisa and presented in tabular form and processed using SPSS program for the data to be valid.The population in this study is the community sub-district of West Ungaran. While the sample is most people who use the District of West Ungaran public services in the field of population administration drawn at random (accident sampling) and numbered as many as 100 people. The results showed that the public service field of population administration at the district office Ungaran Barat largely rated by the community. People are already satisfied with the performance Ungaran Barat district office employees. But the need to improve services so that excellent service can always be realized

    Kondisi Dan Prospek Pengembangan Eksisting Ruang Terbuka Hijau (RTH) Publik Kota Surakarta

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    The existence of green open space continues to decrease as a result of development. Reduction in the quantity of green open space which is very significant in urban areas, causes in lower quality of urban public green open space as a consequence of the development of the city that needs a lot of land. Though the existence of public green open space is needed as one of the important elements of the urban.This research was conducted with the aim to know how the existing condition, external and internal environment aspects in the management of green open spaces by the government that affect the prospect of development of existing green open space in the future in Surakarta. The results showed that there is a big gap between the percentages of obligations (20%) with a percentage of the existing condition of public green open space that exists (9.17%). The problem of green space in the city is related with the poor distribution and maintaining of green space, ineffective implementation of the regulation, budget and land limitation for the development.The recommendation could be made to the Government of Surakarta by arranging law enforcement related to the environment, good physical planning, and standardization of for human resources recommendation in the institutions which is responsible to manages of green spaces, direct the activities of Corporate Social Responsibility (CSR) for public green open spaces. In addition, look for alternative fulfillment of public green space area with the acquisition of private land, the revitalization of green space that has undergone over the function, or through the development of green space in the special functions
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