37 research outputs found
DISAIN ANALISIS SISTEM ALIR SEDERHANA UNTUK PENENTUAN BESI DENGAN METODE SPEKTROFOTOMETRI
No full textRINGKASAN
Disain Analisis Sistem Alir Sederhana untuk Penentuan Besi Menggunakan
Metode Spektrofotometri; Wiwin Setiani, 081810301006; 2013; 41 halaman;
Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember.
Penentuan kadar besi dalam air biasanya dilakukan dengan metode batch
menggunakan reagen pengkompleks 1,10-Fenantrolin. Pada metode analisis ini
membutuhkan pereaksi dalam jumlah banyak, biaya cukup mahal dan buangan yang
dihasilkan bersifat toksik bagi lingkungan. Flow Injection Analysis (FIA) adalah
suatu metode analisis kimia dengan cara menyuntikkan sejumlah volume sampel ke
dalam suatu aliran carrier dan akan terjadi reaksi tertentu yang kemudian dibawa ke
suatu detektor. Pada metode ini terdapat beberapa kelebihan antara lain waktu analisis
yang relative cepat, pelarut yang digunakan lebih sedikit, dan meminimalisir
kontaminan. Dalam Flow Injection Analysis (FIA) terdapat beberapa komponen
penting antara lain propelling unit, injection/insertion unit, transport and reaction
unit, dan detektor. Pada penelitian ini yang paling penting yaitu pada bagian
propelling unit. Propelling unit disini dicontohkan misalnya pompa peristaltic,
pompa syringe, dan botol bertekanan. Bagian propelling unit yang sering digunakan
yaitu pompa peristaltic, akan tetapi pompa ini mempunyai kelemahan. Salah satu
kelemahannya yaitu pipa elastis yang digunakan untuk mengalirkan larutan, akan
mudah rusak atau luka karena sering bergesekan dan bertekanan oleh roller pump
serta harga yang relative mahal. Oleh karena itu dibutuhkan alternatif yaitu dengan
memanfaatkan fungsi botol Marriote sebagai pengganti pompa.
Penelitian ini bertujuan untuk: 1.) Menguji laju alir dan kelayakan rangkaian
tersebut dilihat dari segi laju alir yang dihasilkan oleh rangkaian botol Mariotte, 2.)
Mengetahui dan mempelajari konfigurasi rangkaian analisis sistem alir sederhana
untuk penentuan besi dengan menggunakan komponen-komponen yang tersedia di
lokal, sebagai langkah awal untuk mempelajari instrumentasi di bidang kimia, 3.)
Menguji kelayakan rangkaian tersebut dilihat dari segi batas deteksi, sensitivitas,
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presisi dan uji recoverynya untuk digunakan sebagai penentuan besi dengan metode
spektrofotometri.
Berdasarkan hasil analisis diperoleh respon positif terhadap laju alir yang
dihasilkan botol Marriote sehingga botol tersebut layak digunakan dalam analisis
sistem alir sederhana untuk penentuan besi dalam air.
Setelah dilakukan analisis menggunakan botol Marriote yang difungsikan
sebagai pengganti pompa dalam analisis sistem alir diperoleh konsentrasi dari air
sumur yang digunakan sebagai sampel yaitu sebesar 0,51 ppm dengan menggunakan
metode analisis sistem alir sederhana dan 0,44 ppm dengan menggunakan metode
batch sebagai pembanding.
Analisis uji-t yang digunakan dalam penelitian ini bertujuan mengatahui ada
atau tidak perbedaan yang signifikan antara metode acuan batch untuk pengukuran
besi dan metode analisis sistem alir menggunakan botol Marriote. Dari perhitungan
yang sudah dilakukan dihasilkan bahwa antara kedua metode tidak ada perbedaan
secara signifikan
Keanekaragaman jenis burung dan pemanfaatan Habitat pada ekosistem karst gunung Kendeng Kabupaten Pati, Jawa Tengah
No full textPenelitian dilakukan pada ekosistem karst Gunung Kendeng Kabupaten Pati, Jawa Tengah dengan tujuan untuk mengetahui keanekaragaman jenis burung diurnal dan pemanfaatan habitat oleh burung pada ekosistem karst Gunung Kendeng Kabupaten Pati, Jawa Tengah. Metode yang digunakan ialah kombinasi metode transek dan metode point count dengan metode IPA (Index Point of Abundance). Hasil penelitian menunjukkan 33 jenis, 29 genus dan 17 famili. Sebanyak 6 jenis burung merupakan spesies endemik di Pulau Jawa dan 10 jenis burung adalah spesies yang dilindungi berdasarkan undang-undang, status perdagangan (CITES) dan keterancaman (IUCN). Berdasarkan indeks Shannon-wiener (H�) di seluruh lokasi pengamatan, H� burung di Gunung Kendeng Kabupaten Pati, Jawa Tengah termasuk kedalam kategori sedang. Kecamatan Kayen (2,324), Kecamatan Tambakromo (1,801), Kecamatan Sukolilo (1,787). Pemanfaatan stratifikasi vegetasi digunakan untuk bersarang, istirahat dan makan. Burung pemakan serangga Cucak Kutilang (Pycnonotus aurigaster) cendrung memilih ketinggian (1,80-4,50 m), pemakan biji (0,00-0,60 m) Bondol Jawa (Lonchura leucogastroides), pemakan nektar (0,450-15,00 m) Burung madu-polos (Anthreptes simplex), burung pemangsa (> 15,00 m ) Elang Hitam (Ictinaetus malayensis). Perbandingan aktivitas burung pada waktu pagi dan sore hari adalah aktivitas terbang pada sore hari (34,3%) dan pagi hari (30,7%), tengger sore hari (16,3%) dan pagi hari (20,7%), sarang sore hari (2%), makan sore hari (0,3%) dan pagi hari (1%), jalan sore hari (1,7%) dan pagi hari (1%
INCREASING REGIONAL COMPETITIVENESS THROUGH ENTREPRENEURSHIP DEVELOPMENT IN ECOTOURISM ACTIVITIES.
No full textRegional competitivesness is originated from an internal forces that produce an
added value. The internal forces is based on technological innovation and
entrepreneurial abilities (Drabenstott, 2006). The innovation is illustrated as a fuel, while
entrepreneurship is the engine. Both are a source of employment, income and welfare.
An entrepreneurial ability of local people on ecotourism activities in the Bromo Tengger
Semeru National Park (BTS NP) has developed naturally (Nugroho, 2006; 2007;
Nugroho and Negara, 2008). The people are often involved in ecotourism development
programs held by the BTS NP. The author’s study (Nugroho, Negara and Purnomowati,
2010) proved that the ecotourism activities were economically viable than the
horticultural farm.
However, these experiences have not fully produced significant benefits in the
development of ecotourism. Characteristic of the ecotourism activities is a cluster (Fodor
and Sitanyi, 2008a, 2008b), which always put the local people in a less advantageous
position. The ecotourism cluster is an ecotourism organization (Prieto, Gilmore and Osiri,
2009) that involve the local people, non-governmental organizations, private actors, the
national parks and government to produce ecotourism entrepreneurship. The result of
research the author (Nugroho, Negara and Nugroho, 2009) shows that the phenomenon
of social entrepreneurship is an important component of conceptual framework of
ecotourism entrepreneurship. This requires all parties to act to be a social entrepreneur
in a framework of ecotourism organization.Iwan Nugroho, Purnawan D. Negara, and Wiwin Purnomowati. 2011. INCREASING REGIONAL COMPETITIVENESS THROUGH ENTREPRENEURSHIP DEVELOPMENT IN ECOTOURISM ACTIVITIES. The 3rd IRSA International Institute. 2011 19-21 July 2011, Padang – West Sumatra Indonesia</div
Simple Design Flow Analysis System for Determination of Iron by Spectrophotometric method
No full textThe purpose of this research is to make a series of analyzes using a flow system with a bottle Marriote as pump and spectrophotometric method for determining the content of iron in water samples. Determination of iron by this method used 1,10-fenantrolin complexing or 2,2-bipyridyl. In this method, Fe3+ is reduced to Fe2+ prior complexed with iron to form a specific color and then flowed it through a marriote bottle next to the spectrophotometer detector. The average flow rate of the liquid in the bottle Marriote amounted to 0.037 mL / sec. Limit detection obtained in the batch is 0.00017 ppm and 0.00023 ppm in simple flow systems analysis methods. Sensitivity obtained in the batch method is 0.027 and the simple flow system analysis method is 0.035. Flow rate precision values are expressed Marriote bottle with Kv values <5%. Values accuracy expreced percenting of recovery was 99% in the batch method, whereas the simple flow system analysis method was 98.5%. Results of t-test analysts suggest that iron determination using flow systems analysis (FIA) with the replacement pump bottle Marriote not differ significantly from the results obtained with the batch system. Â Keywords: batch method, bottle Marriote, Flow Injection Analysis, spectrofotometr
Tari Ringkang Jawari: Elemen Emansipasi Wanita Dalam Tari Kreasi Banten
No full textWriting on Tari Ringkang Jawari: Elements of Emancipation in Banten Creative Dance aims to provide an explanation of how women's emancipation can develop and progress over time without losing their identity by revealing movement structures that have symbolic meaning and various movements and forms of presentation. Ringkang Jawari dance in the Performing Arts department as teaching material in the Banten creative dance course will be described clearly. The Ringkang Jawari dance as teaching material in the Banten Creative Dance course in the arts department has many meanings, including the symbolic meaning that exists in every dance movement, containing symbols, make-up, clothing, and accompaniment as well as meaningful and symbolic attributes. The name of the movement and meaning that is also found in the Ringkang Jawari dance is marked by the dancers who dance this dance using almadad, symbolizing the strength of Banten women in fighting for the progress of their region with a symbol of strength.Especially in the field of dance, in order to preserve and develop the Ringkang Jawari dance, which is a typical art of the Banten people, the author needs to provide wider socialization about the typical dance arts of Banten, especially the Ringkang Jawari dance, to the community by becoming learning material for courses in the performing arts department of FKIP and trying the Ringkang Jawari dance as a dance treasure in Banten
Usaha Peningkatan Disiplin Kerja Dalam Memperlancar Kinerja Karyawan Pada PT Hindoli Cargill Estate Sungai Lilin Kabupaten Musi Banyuasin Provinsi Sumatera Selatan
No full textThe research has aimed to determine the influence of work discipline to the employee performance at PT Hindoli Cargill Kabupaten Musi Banyuasin South Sumatera, the method used by the author are a quantitative method.Data collection techniques that writer do are observation, interview, and questionnaires.Based on the results of the research show the application of the rules on disciplinary violations committed have an impact on employee performance because does not know the indicators that will be assessed by the company, and timing of, in this case the need for firmness of a leader of the company to students.Problems: Lack of awareness of employees to comply with regulations concerning labor discipline set by the company such as (1) There are still staff employees who come late to office, (2) Permission to go home without explanation. Consequently the work that has been assigned to employees delayed or not completed or not realized within the time specified by the company.Suggestions: (1) So that a work is not delayed and can be realized, then the employee can start from within yourself first, after which it can be applied in other occupations. (2) Leader must be more assertive in taking action and give punishment to the indiscipline employee
Mass of Malam Jumat Kliwon at Sendang Sriningsih: Sociological and Theological Insights
No full textThis research was conducted using qualitative methods. The method taken is to conduct interviews with 3 sources. This research is motivated by the author's interest in the Kliwon Friday night Mass at the Sendang Sriningsih Maria Cave, Dalem, Klaten. The author feels that the Kliwon Friday night Tirakatan Mass is a form of inculturation in the Catholic Church, specifically for Catholicism in the Sriningsih area. In this research, the author wants to look at the meaning of the Kliwon Friday night Mass for the people in Sriningsih. The theoretical framework that the author takes is to use the Javanese philosophy of life according to Suwardi Endraswara's book, Querida Amazonia Document which deals with inculturation, also from Gaudium et Spes which talks about the relationship of evangelism with culture. This research produces data that the people really feel the sincerity and solemnity of the Tirakatan Kliwon Friday Mass, even though there is no special ritual in the celebration. The absence of special rituals is not a barrier for people to meet and find God
A study on the relationship between plot and theme of Tolkiens The Lord Of The Rings
No full textABSTRACT
This study is aimed at analyzing the development of the plot, and the relationship between plot and theme in Tolkien’s 7'he Lord of the Rings-The fellowship of the Ring. The writer chooses The Lord of the Rings because it has been the great novel and the best selling during 2001-2004, it has many aspects to be analyzed and criticized.
In this research the writer uses descriptive qualitative method. The writer describes and interprets the data based on the research problems.
In this study the writer is the key instrument in analyzing the primary data is taken from the novel itself and only other information relating to the topic used as a secondary data.
The writer also presents the theories that are closely related to the analysis. They are theories about theme, the relationship between plot and theme, and all of the aspects of plot that is structure of plot which contains the beginning, middle, and end. And also the laws of plot which contains, plausibility, suspense, surprise, and unity. After analyzing the data, the writer finds out some findings, there are: the development of the plot and the relationship between plot and theme of Tolkien’s The Lord of the rings-the Fellowship of the Ring.
The conclusion of this study are, the development of the plot, according with the structure of plot. In describing the whole story, the author starts in the beginning that is told the main character’s life and biography. Then middle that is showed by the main character’s great expectant, surprise, and he face conflict in his life. And then the other elements that make the plot develop are climax that is the main character has been in the top of trouble. The last is the author gives ending in the story. In The lord of the Rings he used an open plot, so the end of this story is unclear ending.
As a suggestion the writer hopes that the reader would be able to develop new ideas about other aspects which are influencing the relationship between plot and theme and the development of the plot in novel, and also the reader can used this thesis as reference for further research
Efektifitas Ektrak Ikan Gabus Terhadap Penyembuhan Luka Perineum Di Rumah Sakit Permata Hati Cikupa Tangerang Tahun 2024
No full textPerineal wounds are a type of tear that occurs in the perineum during childbirth. The perineum is the area between the vagina and the anus in women. Perineal tears often occur during labor, especially when the baby is born and the baby's head passes through the birth canal.To find out the effectiveness of snakehead fish extract on the healing of perineal wounds in hospitals Permata Hati Cikupa Tangerang in 2024.This study is an experimental Quasy research with a group of snakehead fish. The independent variable in this study was the feeding of snakehead fish, the dependent variable was the duration of healing of perineal wounds. The total number of respondents in this study was 10 respondents based on data from postpartum mothers who experienced perineal injuries which were divided into two groups, namely 5 respondents in the group who were given snakehead fish, 5 respondents in the group who were not given snakehead fish which were taken by puposive sampling. Data analysis was carried out univariate and bivariate, to determine the effectiveness of snakehead fish on the healing time of perineal wounds using an independent sample test if it is normally distributed and if it is not normally distributed, use the Mann-Whitney test of SPSS versii 25.The researcher's assumption is that after a study was conducted at Permata Hati Cikupa Hospital in Tangerang in 2024 with the administration of snakehead fish extract on the healing of perineal wounds for 7 days, as much as 200 grams must be consumed every day. The author also conducted an evaluation and made a comparison between the theory and the existing case, the author concluded that there was no difference between the theory and the case, the stitches seemed dry and had been tight on the seventh day.Consumption of snakehead fish or snakehead fish extract has been proven to be effective in accelerating the healing process of perineal wounds in postpartum mothers and has benefits, namely it can reduce homocysteine levels in the blood, prevent heart disease and stroke and can improve children's intelligence and health, and recommends consuming snakehead fish or snakehead fish extract to accelerate the healing of perineal wounds
