35,030 research outputs found
THE INFLUENCE OF MASTERY PRODUCTIVE PROGRAMS AND INDUSTRIAL GUIDANCE TEACHER TOWARDS THE ACHIEVEMENT OBTAINED IN INDUSTRIAL WORKING PRACTICE ON DRAWINGS OF BUILDING ENGINEERING PROGRAM AT SMK N 2 YOGYAKARTA
This research aimed to know the effect of mastery productive programs and
industrial teacher’s guidance toward the achievement obtained in industrial working
practice achievement on the drawing of building engineering program at SMK N 2
Yogyakarta in second grade of SMK N 2 Yogyakarta in academic year of 2010/2011.
This research is an Ex-Post Facto research. The sample of this research was 31
second grade students of engineering drawings of SMK N 2 Yogyakarta in academic
year of 2010/2011 who had done the first periode of industrial working practice. The
data collecting of the population for the work of the industrial teacher’s guidance was
using questioner of Likert scale with margin score of 1 to 4. Meanwhile to the
variable of productive program achievement was using the document of report school
grade from grade 1 to 2. 0 The variable achievement of industrial working practice
also applied the documentation of industrial working practice grade which was
written in the certificate of industrial working practice. The instruments validation
questioner implemented items analysis using correlation formula “Product Moment”
and the check reliability was using Alpha Cronbach Formula. Testing hypothesis was
using correlation analysis product moment and multiple regression analysis which
were done before test requirements analysis. It consisted of normalization,
linearization, and multikolinierization.
The result stows that : (1). There was an significant influence to the achievement
of productive program to the student’s the achievement obtained in industrial
working practice proved by correlation coefficient 0,8,8 > 0,355, P = 0,05 with the
effective contribution 24,9% and X1 = 2,932. (2). There was significant influence
between the work of industrial guidance teacher and the students’ achievement
obtained in industrial working practice, proved by correlation coefficient 0,5932 >
0,355, P= 0,05 with the effective contribution of 0,2% and X2 = 0,030. (3). There is
influence significant between the productive program achievement and the work of
industrial guidance teacher with the students’ achievement obtained in industrial
working practice with effective contribution of 25,1% and Y = -12,819 + 2,923X1 +
0,030 X2.
Keyword: the productive program mastery, industrial guidance teachers work, the
achievement obtained in industrial working practic
Perturbation Theory Based on Darboux Transformation on One-Dimensional Dirac Equation in Quantum Computation
We present the recent works \cite{trisetyarso2011} on the application of
Darboux transformation on one-dimensional Dirac equation related to the field
of Quantum Information and Computation (QIC). The representation of physical
system in one-dimensional equation and its transformation due to the Bagrov,
Baldiotti, Gitman, and Shamshutdinova (BBGS)-Darboux transformation showing the
possibility admitting the concept of relativity and the trade-off of concurrent
condition of quantum and classical physics play into the area of QIC. The
applications in cavity quantum electrodynamics and on the proposal of quantum
transistor are presented.Comment: 2 pages, 3 figures Information and Communication Technology (ICoICT),
201
KADAR KORTISOL, TRANSFORMING GROWTH FACTOR β (TGF-β), SERTA DERAJAT ADHESI PASCA LAPAROSKOPI DAN LAPAROTOMI (Penelitian Eksperimental pada Kelinci yang Dilakukan Abrasi Ileum)
ABSTRACT
Background: Intraperitoneal adhesions after abdominal surgery occurred in 50-97% cases, and the most cause is laparotomy. This research was done to know the difference between laparoscopy and laparotomy regarding the peritoneal adhesion degree, cortisol and TGF- β level.
Material and Method: A randomized control trial post test only design was done on both groups. The 1st group (X1) was performed laparotomy and ileum abrasion, while the 2nd group (X2) was performed laparoscopy, both treatment performed under general anaesthesia. The blood sampel was taken just before and 6 hours after operation to measure the cortisol level. Seven days later, both groups were
terminated by making vertebrae cervical dislocation and than performed laparotomy to assess the intraperitoneal adhesion and to collected the peritoneal fluid to measure
the TGF-β levels. The differences regarding cortisol and TGF-β level were analyzed by independent t-test, while the intraperitoneal adhesion was analyzed by Mann Whitney. Pearson’s test was performed to analyze the correlation between cortisol and TGF-β level, while the correlation between TGF-β level and the adhesion degree
analyzed by Spearman’s test.
Result: There were significant difference in the cortisol (mean 20,03 ± 1,550 ng/ml.), TGF-β level (mean 6.772,50 ± 414,77 pg/ml.)and the adhesion degree among both groups (p = 0.021, p < 0.001, p = 0.002 ). There were strong positif
correlation between cortisol with TGF-β level (p = 0.030, r = 0.632) and very strong positive correlation between TGF-β level with the adhesion degree (p = 0.001, r = 0.941).
Conclusion : Laparoscopic surgery can minimize the increase of the TGF-β and cortisol level, so as to lower the incidence of adhesion.
Key words : Degrees of adhesion, cortisol, TGF-β,laparotomy, laparoscopy
Pengaruh Penambahan Pupuk Organik Kotoran Sapi Terhadap Kualitas Kompos dari Sampah Daun Kering di TPST Undip
ABSTRAK
Sebagian besar sampah organik di Universitas Diponegoro didominasi oleh
sampah daun kering. Sampah daun kering merupakan salah satu bahan yang dapat
untuk dijadikan kompos. Penambahan bahan organik lain diperlukan untuk
meningkatkan kandungan unsur hara kompos. Tujuan dari penelitian ini adalah
untuk menganalisis pengaruh dan menentukan variasi optimum penambahan pupuk
organik kotoran sapi terhadap kualitas kompos dari sampah daun kering di TPST
Undip. Pengomposan dilakukan secara aerobic dengan waktu pengomposan
selama 28 hari. Pengomposan dilakukan dengan activator EM4. Variabel penelitian
dengan menambahkan pupuk organik kotoran sapi (sampah daun : pupuk organik
kotoran sapi) dengan variasi kontrol (1 : 0), P1 (4 : 1), P2 (7:3), P3 (3 : 2).
Berdasakan penelitian menunjukkan bahwa penambahan pupuk organik kotoran
sapi memberikan pengaruh pada hasil kualitas pengomposan, bahwa kualitas
kompos yang dihasilkan lebih baik, dengan kompos yang paling optimum pada
variasi P2 dengan rasio C/N 10,10%, C-organik 26,73%, N-total 2,64%, P-total
0,60%, K-total 0,44%.
Kata kunci : Sampah organik, kompos, pengomposan, kotoran sapi
ABSTRACT
(The Effect of Cow Manure Organic Fertilizer Addition To The Quality Compost
From Dried Leaf Litter at TPST Undip). Most of the organic waste at Diponegoro
University is dominated by dry leaf litter. The dry leaf litter is one of the materials
that can be composted. The addition of another organic materials need to increase
the nutrient content in the compost. The purpose of this study is to analyze the effect
and determining the optimum variation of addition organic fertilizer of cow manure
to the quality of compost from dry leaf litter at TPST Undip. The composting is an
aerobic process with composting time during 28 days. The composting was
conducted by using EM4 activator. Variables of this study were the organic
fertilizer of cow manure addition ( leaf litter : organic fertilizer of cow manure )
with variation of control ( 1:0), P1 (4:1), P2 (7:3), P3 (3:2). Based on the result of
this study showed that the addition of organic fertilizer cow manure had an effect
on the quality of composting, that the quality of the compost produced is better
result, with the most optimal compost was P2 variation, with result C/N ratio
10.10%, C organic 26.73%, N-total 2. 64%, P-total 0.60%, K-total 0.44% .
Keywords: Organic waste, compost, composting, cow manur
MIGRASI LARVA SIDAT (Anguilla spp.) DI MUARA SUNGAI PROGO
Migrasi leptocephalus dari lokasi pemijahan
di Samudera Hindia hingga kawasan
perairan muara Sungai Progo berlangsung
secara pasif mengikuti arus 1aut. Setelah
bermetamorfosis menjadi glass eel,
selanjutnya larva sidat rase glass eel
tersebut masuk ke sungai. Larva sidat
masuk ke sungai hanya pada waktu tertentu
dan dipengaruhi oleh faktor lingkungan.
Larva sidat bermigrasi dari kawasan muara
ke arab hulu. Dam Srandakan di Sungai
Progo yang hanya berjarak 6,5 km dari
muara, berpotensi menghentikan migrasi
larva sidat. Akibatnya, kelestarian sidat di
Sungai Progo menjadi terancam. Penelitian
ini bertujuan untuk mempelajari migrasi larva
sidat di Sungai Progo, serta nasib sidat
setelah migrasinya terhenti oleh Dam
Srandakan.
Penelitian dilakukan dari bulan
Februari 2007 hingga Juni 2009. Larva sidat
rase glass eel dikoleksi di kawasan muara
menggunakan jaring sodo pada tanggal 16
dan 28 kalender lunar. Waktu sampling
pukul 18.00, 20.00, 22.00, 24.00, 02.00,
04.00, dan 06.00. Data yang dikoleksi
meliputi keme1impahan, umur, ukuran
tubuh, waktu kedatangan, dan kecepatan
renang. Parameter fisiko-kimia yang
dikoleksi meliputi curah hujan, intensitas cahaya, salinitas, suhu, pH, kandungan
oksigen terlarut, turbiditas, penetrasi cahaya,
kecepatan arus sungai, 1ebar mulut sungai,
aras permukaan perairan muara, dan
kandungan bahan organik. Larva sidat yang
ditangkap diukur kecepatan renang dan diuji
ketahanan hidupnya pada berbagai salinitas
yang berbeda. Glass eel juga dikoleksi di
sungai dari muara hingga dam pada tanggal
17 dan 29 kalender lunar pada pukul 04.00.
Sidat rase yellow eel di bawah dam
ditangkap menggunakan perangkap bubu
dari muara hingga dam serta di Kali Nepi.
Data yellow eel di bawah dam yang dikoleksi
adalah cacah individu, panjang tubuh, dan
kemampuan memanjat eel ladder. Sidat rase
yellow eel di atas dam ditangkap
menggunakan pancing sampai jarak 62 km
dari muara. Data diana1isis untuk
mendeskrepsikan dinamika kemelimpahan
larva sidat, serta nasib sidat setelah Dam
Srandakan dibangun. Dinamika
kemelimpahan larva sidat dinalisis
berdasarkan trend yang terjadi. Cacah
individu yellow eel di bawah dam yang
masuk ke Kali Nepi dianalisis dengan
metode CPUE. Hubungan antara umur dan
ukuran tubuh larva sidat dianalisis dengan
metode one way anova sederhana.
Hubungan antara parameter fisiko-kimia
dengan kemelimpahan larva sidat di muara
dianalisis dengan metode PCA. Dalam kurun waktu Februari 2007 -
Juni 2009 telah dikoleksi sampellarva sidat
di muara Sungai Progo sebanyak 1.082
ekor, yang terdiri ares A. marmorata, A.
bicolor bicolor, dan A. nebulosa nebulosa.
Larva sidat jenis A. bicolor bicolor paling
banyak masuk sungai (63,96%). Kisaran
umur larva sidat 58-190 hari, yang dibagi
dalam 5 kelompok umur. Larva sidat masuk
ke muara Sungai Progo saat arus laut di
Samudera Hindia yang mengarah ke muara
membawa leptocephalus. Glass eel
bermigrasi masuk ke Sungai Progo hanya
pada musim penghujan di bulan Oktober -
Juni pacta tabun 2007 - 2009. Pada periode
migrasi bulan Oktober - Januari tabun 2007 -
2009 larva sidat datang ke muara dari arab
timur, dan merupakan hasil pemijahan bulan
Juli - Oktober tabun 2006 - 2008. Pada
periode migrasi bulan Februari - Juni tabun
2007 - 2009 larva sidat datang ke muara dari
arab barat, dan merupakan hasil pemijahan
bulan Nopember - Januari tahun 2006 -
2009. Migrasi tahunan larva sidat berlangsung pada saat curah hujan di atas
125 mm per bulan. Puncak mirasi tahunan
larva sidat ke muara sungai terjadi setelah
didahului curah hujan yang tinggi 3-5 bulan
sebelumnya, dan kecepatan arus di mulut
sungai rendah yaitu kurang dari 0,2 m per
detik. Migrasi harian larva sidat berlangsung
di akhir bulan lunar, pada malam hari saat
intensitas cahaya 0 lux. Puncak migrasi
harian berlangsung saat air pasang naik.
Larva sidat yang masuk muara Sungai
Progo segera bermigrasi ke arab hulu dan
dapat mencapai Dam Srandakan dalam
waktu 4 hari. Migrasi larva sidat rase glass
eel hanya sampai dam. Dam yang tinggi dan
dekat muara sungai menghentikan migrasi
sidat. Sebagian besar sidat yang terjebak
oleh dam tidak bisa melanjutkan migrasi ke
arab hulu. Sebagian kecil sidat yang
migrasinya terhenti oleh dam, bermigrasi
masuk ke Kali Nepi.
Kesimpulan penelitian ini adalah:
jenis sidat yang masuk Sungai Progo adalah
A. marmorata, A. bicolor bicolor, dan A.
nehulosa nehulosa. Sidat jenis A. bicolor
bicolor dan A. marmorata datang ke muara
dari arab barat datang dan timur. Sidat A.
nebulosa nebulosa datang ke muara dari
arab barat. Migrasi tahunan berlangsung
saat salinitas rendah akibat air sungai
banyak masuk ke laut pada musim
penghujan. Puncak migrnsi tahunan
berlangsung setelah didahului curah hujan
yang tinggi 3-5 bulan sebelumnya serta
kecepatan arus sungai di mulut sungai
rendah. Migrasi harian berlangsung di akhir
bulan lunar pada malam hari saat intensitas
cahaya 0 lux. Puncak migrasi harian
berlungsung saat air laut pasang naik.
Tanggul pemecah ombak menghambat
migrasi sidat masuk ke muara dan Dam
Srandakan menghentikan migrasi sidat.
Kata kunci: migrasi, sidat, Anguilla, Sungai
Progo, Samudera Hindi
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