Hasil Pencarian  ::  Simpan CSV :: Kembali

Hasil Pencarian

Ditemukan 16376 dokumen yang sesuai dengan query
cover
Eric Lichtfouse, editor
"Sustainable agriculture is a rapidly growing field aiming at producing food and energy in a sustainable way for our children. This discipline addresses current issues such as climate change, increasing food and fuel prices, starvation, obesity, water pollution, soil erosion, fertility loss, pest control and biodiversity depletion. Novel solutions are proposed based on integrated knowledge from agronomy, soil science, molecular biology, chemistry, toxicology, ecology, economy, philosophy and social sciences. As actual society issues are now intertwined, sustainable agriculture will bring solutions to build a safer world. This book series analyzes current agricultural issues and proposes alternative solutions, consequently helping all scientists, decision-makers, professors, farmers and politicians wishing to build safe agriculture, energy and food systems for future generations."
Dordrecht: [, Springer], 2012
e20417491
eBooks  Universitas Indonesia Library
cover
"This volume provides an overview of the occurrence and fate of emerging contaminants, discusses advanced chemical analysis methods, toxicological and ecotoxicological effects as well as human exposure. One focus is on pharmaceuticals, in particular antibiotics, and the problems associated with their increased use in hospitals. Other covered emerging contaminants occurring e.g. in food, water, air or soil include brominated flame retardants, polar pesticides, phthalates, phosphate esters, perfluorinated compounds, personal care products, musk fragrances, disinfection byproducts, illicit drugs, and nanomaterials."
Heidelberg : Springer, 2012
e20402013
eBooks  Universitas Indonesia Library
cover
Trasar-Cepeda, Carmen, editor
"Soil enzymes play a fundamental role in many soil processes such as the mineralization of organic matter, the synthesis of humic substances, the degradation of xenobiotics or the mechanisms involved in the biocontrol of plant pathogens. Their direct link with soil microorganisms gives them a key role as biomonitors of the evolution of soil quality or in the monitoring of the application of organic amendments to degraded soils. As a consequence of the importance of soil enzymes on soil processes, there is an increasing interest in their study, as well as in the application of molecular techniques as diagnostic tools."
Heidelberg : Springer, 2012
e20405622
eBooks  Universitas Indonesia Library
cover
Rahmadian Puspitasari
"Kebutuhan manusia terus meningkat sehingga makanan ramah lingkungan diperlukan untuk keberlanjutan. Tujuan dari penelitian ini adalah untuk menentukan bagaimana healthy lifestyle, health concern, environment concern, product quality mempengaruhi niat pembelian kopi organik dengan memperluas Theory of Planned Behavior (TPB). Sampel diperoleh dari 205 responden yang tidak pernah membeli kopi organik dengan menggunakan metode judgmental sampling. Data dianalisis menggunakan Structural Equation Modeling untuk menguji 7 hipotesis yang menghubungkan 8 konstruk kekuatan hubungan antar konstruk. Hasil penelitian ini menunjukkan bahwa healthy lifestyle dan product quality berpengaruh positif dalam sikap untuk membeli kopi organik. Dengan demikian untuk mendorong niat yang lebih tinggi untuk membeli lebih banyak kopi organik, lembaga terkait harus mempromosikan dan mendukung konsumen untuk mengetahui kopi organik dengan memperkuat promosi faktor

Human needs are keep increasing so that eco-friendly food is necessary for sustainability. The purpose of this paper is to determine how healthy lifestyle, health concern, environmental concern, and product quality are influencing the intention of purchasing organic coffee by expanding Theory of Planned Behavior (TPB). The samples are obtained from 205 respondents who never bought organic coffee using judgmental sampling method. Data were analyzed using Structural Equation Modeling to test 7 hypotheses connecting the 8 constructs of the relationship strength between constructs. The results of this study indicate that healthy lifestyle and product quality have a positive effect on attitudes to buying organic coffee. Thus to encourage higher intention to buy more organic coffee, related institutions must promote and support consumers to find out organic coffee by strengthening the promotion of healthy lifestyle factors and product quality."
Jakarta: Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2020
T-Pdf
UI - Tesis Membership  Universitas Indonesia Library
cover
Cambridge, UK: The Royal Society of Chemistry, 1991
631.417 ADV
Buku Teks  Universitas Indonesia Library
cover
Ita Mesikel
"Uji kontrol kualitas menjamin bahwa peralatan memiliki kinerja sesuai standar dan bekerja dalam kondisi yang baik sehingga menghasilkan kualitas citra yang baik. Penelitian kontrol kualitas ini dilakukan terhadap pesawat PET/CT dengan menggunakan pedoman IAEA (Internasional Atomic Energy Agency) Human Health Series No. 1, yang terdiri dari uji resolusi spasial, uji sensitivitas, uji scatter fraction, uji resolusi energi, uji kualitas citra, dan uji resolusi waktu. Uji resolusi spasial menentukan titik terdekat yang dapat diamati oleh sistem pesawat PET. Uji sensitivitas bertujuan untuk mengetahui kepekaan detektor alat dalam menangkap hamburan foton. Uji scatter fraction untuk mengetahui fraksi dari scatter yang terjadi ketika proses rekonstruksi berlangsung. Uji resolusi energi merupakan bagian dari mengetahui kemampuan detektor dalam membedakan foton dengan energi yang berbeda. Uji kualitas citra bermanfaat untuk melihat hasil citra dengan faktor atenuasi dan hamburan. Uji resolusi waktu digunakan pada pesawat PET yang memanfaatkan aplikasi TOF (time of flight) untuk melihat kemampuan sistem dalam memperkirakan perbedaan waktu kedatangan 2 buah foton.
Hasil dari penelitian ini menunjukkan bahwa resolusi spasial pada radius 1 cm sebesar 9,4 mm (transverse) dan 3,4 mm (axial), sedangkan resolusi spasial pada radius 10 cm sebesar 8,4 mm (radial), 8,3 mm (tangential), 3,3 mm (axial). Nilai sensitivitas alat dari diameter kecil-besar, yaitu 0,071 cps/kBq, 0,074 cps/kBq, 0,070 cps/kBq, 0,063 cps/kBq, dan 0,067 cps/kBq. Hasil dari besaran scatter fraction dari penelitian ini adalah 42,78%. Nilai kualitas citra yang ditunjukkan pada bohlam dari diameter kecil-besar, yaitu 49,60%, 68,21%, 56,43%, 43,28%, 62,94%, dan 70,04%.

Quality control tests is required for controling and monitoring quality of the performance imaging tool that has been installed. Quality control tests carried out on the PET/CT will assist in ensuring a standardized tool functions and comply the rules of usage. Quality control tests in this study using the guidelines IAEA Human Health Series No.1 included tests of spatial resolution, sensitivity, scatter fraction, energy resolution, image quality, and coincidences timing resolution. Spatial resolution test is determine the nearest point observed by PET systems. Sensitivity test aims to determine sensitivity of PET detector to catch photons scattering. Scatter fraction test to determine the fraction of scattering that occurs during process of reconstruction. Energy resolution test is to determine the ability of PET detector to distinguish photon with different energy. Image quality test useful to see the results of the image by a factor of attenuation and scattering. Coincidences timing resolution test used in PET instrument utilizing TOF applications to see ability the system to estimate the difference in arrival time of two photons.
The results of this study indicate that the spatial resolution at 1 cm radius is 9,4 mm (transverse) and 3,4 mm (axial), and the spatial resolution at 10 cm radius is 8,4 mm (radial), 8,3 mm (tangential), 3,3 mm (axial). The sensitivity value from small sleeve to bigger sleeve is 0,071 cps/kBq, 0,074 cps/kBq, 0,070 cps/kBq, 0,063 cps/kBq, and 0,067 cps/kBq. The results of scatter fraction is 42,78%. Image quality value from small sphere to large sphere is 49,60%, 68,21%, 56,43%, 43,28%, 62,94%, and 70,04%.
"
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2013
S52549
UI - Skripsi Membership  Universitas Indonesia Library
cover
Simanjuntak, Familia Novita
"Permasalahan kualitas kesuburan tanah adalah masalah lingkungan karena terkait dengan tiga aspek lingkungan yaitu ekosistem (alam), manusia (sosial) dan pendapatan (ekonomi) yang dapat menyebabkan pembangunan menjadi tidak berkelanjutan terutama di bidang pertanian. Permasalahan kualitas kesuburan tanah mulai muncul sejak kegiatan pertanian menggunakan asupan sintetik secara berlebihan menyebabkan lahan pertanian menjadi lahan kritis dan seiring dengan pertumbuhan populasi kegiatan pertanian mau tidak mau hams dilakukan pada lahan marjinal.
Penelitian ini secara umum bertujuan untuk mengetahui dampak penerapan pertanian organik terhadap kualitas kesuburan tanah, dan secara khusus, penelitian ini bertujuan untuk mengetahui: (1) pengaruh penerapan pertanian organik BSB Cisarua pada pembentukan sikap, perilaku dan pemikiran pelaku pertanian yang lestari, seimbang dan selaras dengan alam; (2) pengaruh penerapan pertanian organik BSB Cisarua pada kualitas kesuburan tanah; (3) pengaruh penerapan pertanian organik BSB Cisarua produk pangan yang bebas pestisida.
Hipotesis yang digunakan dalam peneIitian ini adalah: (1) Penerapan pertanian organik BSB Cisarua mencakup Konsep Pembangunan Berkelanjutan; (2) Penerapan pertanian organik BSB Cisarua memperbaiki atau meningkatkan kualitas kesuburan tanah; (3) Penerapan pertanian organik BSB Cisarua menghasilkan produk sayuran yang bebas pestisida.
Penelitian ini dilakukan di Pertanian Organik Bina Sarana Bhakti (BSB) Cisarua_ Jumlah total sampel tanah untuk analisis adalah 30 sampel tanah komposit yang diambil secara stratified sampling, yaitu 5 ulangan tanah komposit dari plot BA (bawah atap), 20 ulangan sampel komposit dari plot LP (lahan pertanaman) dan 5 ulangan sampel tanah komposit dari plot P (pembanding). Metode pengumpulan informasi mengenai penerapan pertanian organik BSB Cisarua adalah melalui studi literatur BSB (published dan unpublished), informasi profit pekerja bagian produksi BSB adalah melalui wawancara dan pengumpulan data sampel tanah dilakukan dengan metode ekspost fakto. Sampel tanah dianalisis di laboratorium dan data yang digunakan terdiri atas tiga bagian yaitu: (1) persentase pasir, debu dan liat sebagai parameter kualitas fisik kesuburan tanah; (2) kandungan C, N dan Fe-tersedia sebagai parameter kualitas kimia kesuburan tanah; dan (3) total mikroorganisme tanah, jumlah individu mikroorganisme tanah dan respirasi tanah sebagai parameter kualitas biologi kesuburan tanah. Pengolahan data menggunakan metode statistik.
Hasil analisis penelitian menyatakan bahwa: (1) Penerapan pertanian organik BSB Cisarua mengusahakan pengembangan keanekaragaman hayati dalam sistem secara keseluruhan. Hal ini dapat dilihat dari kondisi keragaman pekerja dan jenis organisme yang terdapat di dalam kebun BSB. BSB rnenambahkan bahan organik ke dalam tanah untuk menjaga kesuburan tanah dalam jangka panjang dan meningkatkan aktivitas biologis tanah. BSB mengandalkan sumberdaya lokal yang dapat diperbaharui dan melakukan daur ulang melalui pengomposan.; (2) Penerapan pertanian organik BSB Cisarua menambah pori-pori makro, meningkatkan kandungan C, N, bahan organik, rasio CIN, jumlah individu dan total rnikroorganisme tanah namun mengurangi jumlah pori-pori mikro, menurunkan kandungan Fe-tersedia di dalam tanah dan respirasi tanah; (3) Produk sayuran BSB Cisarua bebas pestisida, logam berat dan zat-zat yang dilarang oleh budaya atau agama tertentu.
Kesimpulan penelitian ini adalah: (1) Penerapan pertanian organik BSB Cisarua mencakup Konsep Pembangunan Berkelanjutan; (2) Penerapan pertanian organik BSB Cisarua memperbaiki atau meningkatkan kualitas kesuburan tanah; (3) Penerapan pertanian organik BSB Cisarua menghasilkan produk sayuran yang bebas pestisida.
Saran yang diajukan di dalam penelitian ini adalah: (1) Pennasalahan kualitas kesuburan tanah membutuhkan keterlibatan semua stakeholders (masyarakat, pengusaha, pemerintah, dan lembaga non-pemerintah) berupa itikad baik yang mendukung segala daya upaya pertanian organik; (2) Penerapan pertanian organik tidak berorientasi pada produksi maksimum dan tidak dapat dilakukan dalam skala besar secara individu (monopoli) sehingga perlu dibentuk satu wadah yang berfungsi sebagai pusat informasi dan studi untuk saling berbagi (sharing) pengalaman dan kegagalan dalam melakukan kegiatan pertanian organik sekaligus mengorganisasi semua pertanian organik yang saat ini masih bersifat sporadis; (3) Salah satu upaya penyelesaian permasalahan lingkungan adalah internalisasi nilai intrinsik pertanian organik yang mengusahakan keberlanjutan ekosistem dan sosial untuk mencapai keberlanjutan ekonomi; (4) Penelitian dengan parameter yang sama atau berbeda masih perlu dilakukan lebih mendalam agar dapat menemukan solusi terbaik bagi permasalahan kualitas kesuburan tanah.

The problem of soil fertility is the one of the environmental problems because it's related to the three aspects of environment they are ecosystem, human beings and household income. This problem happened since the agriculture caused the critical land because of the application of the synthetic input over dozed and moved to the marginal land because of the population growth.
This research generally aims to study the impact of the organic farming to the quality of soil fertility, and specifically aims to study the impact of the application of BSB organic farming to the formation of attitude, behaviour, and perception of the agricultural society, the quality of soil fertility and the product. The hypothesis of this study are: (1) The application of BSB organic farming includes the concept of The Sustainabilty Development; (2) The application of BSB organic farming improves the quality of soil fertility; (3) The application of BSB organic farming produces the free pesticide residue of food product.
This study was conducted at the middle of February 2006 untill the middle of April 2006, on The Organic Farming of Bina Sarana Bhakti (BSB) Cisarua. The total number of sampling is 30 composite samples, consists of 5 samples of plot BA (under roof plot), 20 samples of plot LP (cultivated land), and 5 samples of plot P (consideration). Those samples were taken by stratified sampling. The method of the data collection consists of literature study, interview and expost facto study. The data of this research are: (1) the percentation of sand, dust and clay as the physical quality parameter; (2) the contents of C, N, organic matter, C/N ratio, and supplied Fe as the chemical quality parameter; (3) the total number and individuals of microorganisms and its respiration as the biological quality parameter. The analysis of data is statistic method.
The analysis states that: (1) The application of BSB organic farming creates the biological diversity, maintains the soil fertility by adding the organic matter, increases the biology of soil activities, uses the local of renewable resources, and recycles by composting; (2) The application of BSB organic farming increases the contents of carbon, nitrogen, organic matter, C/N ratio, the total and number of microorganisms, but decreases the micro pores, the content of Fe supplied and the soil respiration; and (3) The BSB organic vegetables product are free of pesticide residue, heavy metals content and (certain cultural or religion) forbidden matter.
The conclusions of this study are: (I) The application of BSB organic fanning includes the concept of The Sustainability Development; (2) The application of BSB organic farming improves the quality of soil fertility; (3) The application of BSB organic farming produces the free pesticide residue of food product.
The suggestions of this study are: (1) The problem of soil fertility needs every stakeholders participation that supports all the efforts of the organic farming to produce the health, clean and green product; (2) The organic farming does not focus on high yield production and can not be applicated only by one institution in big scale of bussiness, that's why it's important to form one organization as the communication and sharing media about the experiences and failures of doing the organic farming; (3) The environmental problem solving needs the internalization of the organic farming intrinsic value that is the concept which can create the green way of life to avoid or decrease the pollution impact to the environment especially to the soil; (4) The research with the same or different parameters can be done more seriously to find out the best solution for the quality of soil fertility problems.
"
Jakarta: Program Pascasarjana Universitas Indonesia, 2006
T16837
UI - Tesis Membership  Universitas Indonesia Library
cover
Last, John M., 1926-
New York: McGraw-Hill, 1997
362.1 LAS p
Buku Teks  Universitas Indonesia Library
cover
Thibodeau, Gary A., 1938-2013
London: Elsevier, 2005
613 THI h
Buku Teks SO  Universitas Indonesia Library
cover
London: MacMillan company, 1969
614 HUM
Buku Teks SO  Universitas Indonesia Library
<<   1 2 3 4 5 6 7 8 9 10   >>