38 research outputs found
MODEL LATIHAN KECEPATAN REAKSI UNTUK ATLET PENCAK SILAT USIA 17—25 TAHUN
No full textMODEL LATIHAN KECEPATAN REAKSI UNTUK ATLET PENCAK
SILAT USIA 17—25 TAHUN
Muhammad Sulfa
[email protected]
ABSTRAK
Penelitian ini bertujuan untuk menghasilkan produk dan menguji
efektifitas model latihan kecepatan reaksi untuk atlet pencak silat usia 17—25
tahun. Metode penelitian ini menggunakan research and development (R&D)
model Borg and Gall. Subyek penelitian adalah atlit pencak silat usia 17—25
tahun dengan melibatkan PPLP, SKO dengan jumlah subyek 18 orang untuk uji
coba kecil, 100 orang untuk uji coba besar dan uji efektifitas sebesar 60 orang
yang terdiri dari 30 orang kelompok eksperimen dan 30 orang kelompok kontrol.
Instrumen yang digunakan dengan angket, wawancara dan observasi dan utuk
mengukur kecepatan reaksi atlit pencak silat menggunakan Reaction Speed 10
detik. Hasil penelitian menunjukkan bahwa: (1) model latihan kecepatan reaksi
untuk atlet pencak silat berjumlah 70 model latihan dapat diterapkan untuk atlet
pencak silat usia 17-25 tahun, (2) uji efektifitas model latihan kecepatan reaksi
untuk atlet pencak silat menunjukkan adanya pengaruh signifikan terhadap
peningkatan kecepatan reaksi atlet pencak silat usia 17—25 tahun. Hasil uji N—
gain Percent kelompok eksperimen diperoleh nilai Mean= 77.4 atau sama dengan
77% termasuk dalam kategori efektif. Sedangkan, Hasil uji NGain Percent
kelompok kontrol diperoleh nilai Mean= 23.2 atau sama dengan 23% termasuk
dalam kategori tidak efektif. Maka dapat disimpulkan bahwa model latihan
keceptan reaksi efektif untuk meningkatkan kecepatan reaksi atlet pencak silat
usia 17—25 tahun.
Kata Kunci: Model Latihan, Kecepatan Reaksi, pencak silat
REACTION SPEED TRAINING MODEL FOR PENCAK SILAT ATHLETES
AGED 17—25 YEARS
Muhammad Sulfa
[email protected]
ABSTRACT
This study aims to produce a product and test the effectiveness of the
reaction speed training model for pencak silat athletes aged 17—25 years. This
research method uses the research and development (R&D) Borg and Gall model.
The subjects of the study were pencak silat athletes aged 17-25 years involving
PPLP, SKO with a total of 18 subjects for small trials, 100 people for large trials
and effectiveness tests of 60 people consisting of 30 people in the experimental
group and 30 people in the control group. The instrument was used with
questionnaires, interviews and observations and to measure the reaction speed of
pencak silat athletes using a Reaction Speed of 10 seconds. The results showed
that: (1) the reaction speed training model for pencak silat athletes totaled 70
training models could be applied to pencak silat athletes aged 17—25 years, (2)
the effectiveness test of the reaction speed training model for pencak silat athletes
showed a significant influence on the increase in reaction speed pencak silat
athletes aged 17—25 years. The results of the N—gain Percent test of the extreme
groupn obtained a Mean= 77.4 value or equal to 77% included in the effective
category. Meanwhile, the results of the N—Gain Percent test in the control group
obtained a Mean= 23.2 value or equal to 23% included in the ineffective
category. Therefore, it can be concluded that the reaction training model is
effective in increasing the reaction speed of pencak silat athletes aged 17—25
years.
Keywords: Training Model, Reaction Speed, pencak sila
ANTIOXIDANT ACTIVITY OF SOME NEWLY PREPARED SYMMETRICALLY AZO DYES DERIVED FROM SULFA DRUGS
No full textObjective: Sulfa drugs (sulfonamides) were the first type of drugs largely medically used for preventive and chemotherapeutic agents against various types of diseases. To the date, much research has been directed toward the synthesis sulfa drug derivatives such as azo‑sulfa drug compounds. The aim of the present study is to synthesize of azo‑sulfa compounds as antioxidant agents.
Methods: First, three of sulfa drugs react with 4‑methoxy‑1,2‑Naphthoquinone in aqueous medium by stirring at room temperature to give symmetrically azo‑sulfa compounds. The colored compounds which formed were examined their structures by infrared and proton nuclear magnetic resonance spectral techniques.
Results: Three symmetrically azo‑sulfa compounds were tested as antioxidant agents compared with ascorbic acid (AA) using 2,2‑diphenyl‑1‑picrylhydrazyl method. The results indicated that these compounds had good activities (57.79–73.69%) at 30 μg/ml, which had less activity than AA (81.34%) at the same concentration. These results referred the IC50 which had values (15.23–21.35 μg/ml), whereas AA had 7.59 μg/ml.
Conclusion: Attachment of heterocyclic rings containing nitrogen and oxygen (isoxazole) on the azo‑sulfa compounds can enhance the antioxidant activity as compared with the heterocyclic rings containing nitrogen only (pyrimidine) and without heterocyclic rings, which enhanced the lipophilicity which may increase the bioavailability and efficacy of the drug
The influence of the application of Shariy'a on crime and public security.
No full textSIGLEAvailable from British Library Document Supply Centre- DSC:D98373 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Language functions used by prophet Yusuf and Zulaikha in surah Yusuf of the Holy Qur'an: a cross-gender analysis
No full textThis study investigates language functions used by Prophet Yusuf and Zulaikha which in content of Surah Yusuf of The Holy Qur’an. The objectives of the study are to find the kinds of language function used by Prophet Yusuf and Zulaikha, and also to find the differences between male and female language.This study used descriptive qualitative approach. It is categorized as discourse analysis because this study focuses on analysis the talk in conversation. The data were collected from the utterances of Prophet Yusuf and Zulaikha and the data source ware taken from the translation of Surah Yusuf by Muhammad Taqi-ud-Din Al-Hilali and Muhammad Muhsin Khan. The procedure of data collection were collecting the data related on Prophet Yusuf and Zulaikha’s utterances in the translation of Surah Yusuf, reading, identifying the data, then analyzing each their utterances. Having analyzing the data, the writer found in Prophet Yusuf’s utterances 2 expressive, 8 conative, 18 referential, 6 phatic, 2 metalingual, and there was not poetic function. While in Zulaikha’s utterances, the writer found 3 expressive, 2 conative, 3 referential, 1 metalingual, and there was not phatic and poetic function anymore. The differences between male and female language, the writer found Prophet Yusuf mostly used to speak forceful and gentler, and Zulaikha mostly used to speak emotionally
Experimental Studies of Sulfa Drugs on Renal Function Report 1. Influences of Sulfathiazole on Renal Function
No full textA considerable amount of experiments on various animals has been made to study the mechanism and the nature of the renal complication induced by each of the sulfa drugs. In this studies, the author made an experiment of sulfathiazole on rabbits using the renal clearance test to see the effects on renal function. 1. The amounts of urine and the glomerular filtration rate were not influenced by the administration of 0.05 g, 0.10 g, 0.20 g per 1 kg weight of rabbits for 10 days.
2. The renal plasma flow, renal blood flow and hematocrit were clearly deoreased and the filtration rate showed temporarily increase
Pengaruh Daya Ledak Tungkai, Keseimbangan Dan Motivasi Terhadap Kemampuan Tendangan sabit pada cabang Olahraga Pencak Silat Anggota BKMF Pencak Silat BEM FIK UNM
No full textABSTRAK
Penelitian ini bertujuan untuk mengetahui sejauh mana pengaruh langsung dan tidak langsung pengaruh daya ledak tungkai, keseimbangan dan motivasi terhadap kemampuan tendangan sabit pada cabang olahraga pencak silat anggota BKMF pencak silat BEM FIK UNM. Penelitian ini termasuk penelitian deskriptif. Populasi penelitian ini adalah seluruh anggota BKMF pencak silat BEM FIK UNM yang berjumlah 45 orang. Sampel dalam penelitian ini yang berjumlah 30 orang. Teknik penentuan sampel adalah dengan teknik purposive sampling dimana pengambilan sampel sumber data dengan pertimbangan tertentu. Analisis data yang digunakan adalah analisis jalur (Path Analysis)
Bertolak dari hasil analisis data, maka penelitian ini menyimpulkan bahwa: (1). Terdapat pengaruh langsung daya ledak tungkai terhadap motivasi pada cabang olahraga pencak silat anggota BKMF pencak silat BEM FIK UNM sebesar 35,6 %; (2). Terdapat pengaruh langsung keseimbangan terhadap motivasi pada cabang olahraga pencak silat anggota BKMF pencak silat BEM FIK UNM sebesar 62,2%; (3). Terdapat pengaruh langsung daya ledak tungkai terhadap kemampuan tendangan sabit pada cabang olahraga pencak silat anggota BKMF pencak silat BEM FIK UNM sebesar 32,5%; (4). Terdapat pengaruh langsung keseimbangan terhadap kemampuan tendangan sabit pada olahraga pencak silat anggota BKMF pencak silat BEM FIK UNM dengan nilai sebesar 28,8%; (5) terdapatpengaruh langsung motivasi terhadap kemampuan tendangan sabit pada olahraga pencak silat anggota BKMF pencak silat BEM FIK UNM sebesar 39,5%; (6). Terda pat pengaruh daya ledak tungkai melalui motivasi terhadap kemampuan tendangan sabit pada cabang olahraga pencak silat anggota BKMF pencak silat BEM FIK UNM sebesar 14,0%; (7). Terdapat pengaruh keseimbangan melalui motivasi terhadap kemampuan tendangan sabit pada cabang olahraga pencak silat anggota BKMF pencak silat BEM FIK UNM sebesar 24,6%
Highly enantioselective sulfa-Michael addition reactions using N-heterocyclic carbene as a non-covalent organocatalyst
No full textWe report the first asymmetric sulfa-Michael addition (SMA) reactions using a chiral N-heterocyclic carbene (NHC) as a non-covalent organocatalyst. We demonstrate that a triazolium salt derived NHC functions as an excellent Bronsted base to promote enantioselective carbon-sulfur bond formation. The reaction is applicable to a wide range of thiols and electrophilic olefins. Notably, quaternary chiral centers bearing both an S atom and a CF3 group were synthesized with excellent asymmetric control. Mechanistic studies suggest that the facial discrimination is likely to be guided by non-covalent interactions: hydrogen bonding and pi-pi stacking.National Natural Science Foundation of China [21372013]; Shenzhen Peacock Program [KQTD201103]SCI(E)[email protected]
Experimental Studies of Sulfa Drugs on Renal Function Report 2. Influences of Sulfadiazine on Renal Function
No full textRenal complications of sulfadrugs are the result of poor solubility of these drugs in their acetyl derivatives and moreover, there is an intimate relationship between the degree of acetylation and the solubilities of the various sulfa drugs. Experimental studies have shown that sulfadiazine is absorbed rapidly after oral administration, gave relatively high blood concentration, leaves the blood tream slowly with less acetylation, and produced very little toxic reaction on tissues, especially in the urinary tract. In this studies, the author made an experiment of sulfadiazine on rabbits using the renal clearance test and obtained the following results. 1. The amounts of urine, GFR, RPF, RBF, hematocrit showed obviously decreases by the administration of 0.05 g, 0.10 g, 0.20 g per 1 kg weight of rabbits for 10 days. 2. The renal damages paralleled to the amount of sulfadiazine administrated on rabbits and acute renal insufficiency cound be observed
Asymmetric Sulfa-Michael Addition of ,-Unsaturated Esters/Amides Using a Chiral N-Heterocyclic Carbene as a Noncovalent Organocatalyst
No full textWe report an asymmetric sulfa-Michael reaction of ,-unsaturated amides and esters using a chiral N-heterocyclic carbene as the HOMO-raising organocatalyst. We discovered an interesting correlation between C-13 NMR shifts of substrates and ee of their products. More electron-deficient Michael acceptors afforded higher enantioselectivity.National Natural Science Foundation of China [21372013, 21572004]; Shenzhen Peacock Program [KQTD201103]; Disciplinary Development Program for Chemical Biology by the Shenzhen Municipal Development and Reform CommissionSCI(E)[email protected]; [email protected]
Sulfa Drugs Inhibit Sepiapterin Reduction and Chemical Redox Cycling by Sepiapterin Reductase
No full textSepiapterin reductase (SPR) catalyzes the reduction of sepiapterin to dihydrobiopterin (BH2), the precursor for tetrahydrobiopterin (BH4), a cofactor critical for nitric oxide biosynthesis and alkylglycerol and aromatic amino acid metabolism. SPR also medi-ates chemical redox cycling, catalyzing one-electron reduction of redox-active chemicals, including quinones and bipyridinium herbicides (e.g., menadione, 9,10-phenanthrenequinone, and di-quat); rapid reaction of the reduced radicals with molecular oxygen generates reactive oxygen species (ROS). Using recombinant human SPR, sulfonamide- and sulfonylurea-based sulfa drugs were found to be potent noncompetitive inhibitors of both sepiapterin reduction and redox cycling. Themost potent inhibitors of sepiapterin reduction (IC50s 5 31–180 nM) were sulfasalazine, sulfathiazole, sulfapyridine, sulfamethoxazole, and chlorpropamide. Higher con
