bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perbandingan Efek Kerja Minuman Beroksigen dan Air Mineral terhadap Saturasi Oksigen dalam Darah setelah Melakukan Joging 30 Menit Tim Futsal SMA Islam Al MAruf Jakarta Timur
Authors: Giatarma Bean Ken , Setiakarnawijaya Yasep , Wardoyo Hendro 
Published: August 2017

PERBANDINGAN EFEK KERJA MINUMAN BEROKSIGEN DAN AIR MINERAL TERHADAP SATURASI OKSIGEN DALAM DARAH SETELAH MELAKUKAN JOGING 30 MENIT TIM FUTSAL SMA ISLAM AL MARUF JAKARTA TIMUR

Bean Ken Giatarma1,
Yasep Setiakarnawijaya2, Hendro Wardoyo2

1Program Studi Ilmu Keolahragaan
2Fakultas Ilmu Keolahragaan Universitas Negeri Jakarta, Kampus B, Jakarta

Abstrak: Penelitian ini bertujuan untuk mengetahui 1). Efek kerja minuman beroksigen terhadap saturasi oksigen dalam darah setelah melakukan aktifitas jogging selama 30 menit. 2). Efek kerja minuman air mineral (aqua) terhadap saturasi oksigen dalam darah setelah melakukan aktifitas jogging 30 menit. 3). Perbandingan minuman beroksigen dan air mineral terhadap saturasi oksigen dalam darah setelah melakukan aktifitas jogging 30 menit.Penelitian dilaksanakan pada bulan Juni 2015. metode yang digunakan adalah metode eksperimen yaitu dengan pre-test sebelum melakukan dan post test setelah melakukan dan dengan teknik pengambilan purposive sampling, sampel yang berjumlah 10 dengan populasi 15 orang.Instrumen penelitian dengan teknik pengumpulan data yang akan digunakan dalam penelitian ini adalah variabel-variabel yang terdapat dalam peneliti dan diambil dengan pemberian tes sebelum perlakuan dan tes setelah perlakuan. Pada hasil penelitian perbandingan air beroksigen dan air mineral menghasilkan Efek kerja minuman beroksigen terhadap kadar oksigen dalam darah selah melakukan jogging 30 menit jadi Nilai t-tabel dengan derajat kebebasan (dk) n1â€“1 = 10â€“1 = 9 Pada taraf kepercayaan Î± = 0,05 adalah 2,26. Karena t-hitung (8,5) > t-tabel (2,26) maka hipotesa nihilnya ditolak Sehingga dapat disimpulkan bahwa terdapat efek kerja minuman beroksigen terhadap saturasi oksigen setelah jogging 30 menit. Efek kerja minuman air mineral terhadap kadar oksigen dalam darah setelah melakukan jogging 30 menit Nilai t-tabel dengan derajat kebebasan (dk) n1â€“1 = 10â€“1 = 9 Pada taraf kepercayaan Î± = 0,05 adalah 2,26. Karena t-hitung (1) < t-tabel (2,26) maka hipotesa nihilnya diterima Sehingga dapat disimpulkan bahwa efek kerja air mineral terhadap saturasi oksigen setelah jogging 30 menit tidak terdapat perbedaan. Perbandingan air minum beroksigen dan air mineral terhadap saturasi oksigen dalam darah setelah melakukan jogging terdapat perbedaan pada hasil tes, yang menunjukan air beroksigen lebih signifikan. Karena t-hitung (2,90) > t-tabel (2,10), dengan demikian Hipotesa nihilnya ditolak, ada perbedaan pengaruh peningkatan kadar oksigen dalam darah pada air minum beroksigen dan air mineral dimana air beroksigen mendapat pengaruh lebih besar terhadap peningkatan kadar oksigen dalam darah dibandingkan dengan air mineral setelah melakukan jogging selama 30 menit. Maka diambil keputusan bahwa terdapat penigkatan kadar oksigen dalam darah pada air beroksigen dan efek kerja minuman beroksigen lebih signifikan hasilnya.
Kata Kunci: Minuman Beroksigen, Air Mineral
Pengaruh Latihan Tai Chi Chuan terhadap Keseimbangan Statis pada Lansia di Klub Ying Yang Wushu Cabang Monas Jakarta Pusat
Authors: Syaefullah Roby , Fitrianto Eko Juli , Setiakarnawijaya Yasep 
Published: August 2017

PENGARUH LATIHAN TAI CHI CHUAN TERHADAP KESEIMBANGAN STATIS PADA LANSIA DI KLUB YING YANG WUSHU CABANG MONAS JAKARTA PUSAT

Roby Syaefullah1
Eko Juli Fitrianto2, Yasep Setiakarnawijaya2

1Program Studi Ilmu Keolahragaan
2Fakultas Ilmu Keolahragaan Universitas Negeri Jakarta, Kampus B, Jakarta

Abstrak. Penelitian ini bertujuan untuk mengetahui â€œPengaruh latihan tai chi chuan terhadap keseimbangan statis pada lansia di club ying yang wushu cabang monas jakarta pusatâ€.Sasaran penelitian ini adalah peserta lansia di club tai chi chuan ying yang wushu cabang monas jakarta pusat dengan jumlah sampel yang diambil 22 anggota. Penelitian ini menggunakan jenis penelitian eksperimen dengan menggunakan pre test dan post test.
Hasil perhitungan Tes Keseimbangan Statis awal dan akhir latihan diperoleh selisih rata â€“ rata (MD) 3,45 dengan Standar Deviasi Perbedaan (SD D) 2,44 dan Standar Error Perbedaan Rata-rata (SEMD) 0,53. Dalam perhitungan selanjutnya di peroleh nilai t-hitung 6,50 dan nilai t-tabel 2,08 pada taraf signifikan (Î±) = 0,05. Dengan demikian nilai t-hitung > t-tabel yang menunjukan bahwa Hipotesa Nihil (H0) ditolak dan Hipotesa Alternatif (Ha) diterima. Maka dapat disimpulkan bahwa Program Latihan Tai Chi Chuan Dapat Mempengaruhi Peningkatan Keseimbangan Statis Pada Lansia Di Club Ying Yang Wushu Cabang Monas Jakarta Pusat.
Kata kunci : Tai Chi Chuan, Keseimbangan Statis
Efek Kerja HIIT (High Intensity Interval Training) Treadmill selama 30 Menit terhadap Kehilangan Cairan Tubuh pada Member Pria MAG (Muscle Academy Gym)
Authors: Trisandi Desmon , Fitrianto Eko Juli , Setiakarnawijaya Yasep 
Published: August 2017

EFEK KERJA HIIT (HIGH INTENSITY INTERVAL TRAINING) TREADMILL SELAMA 30 MENIT TERHADAP KEHILANGAN CAIRAN TUBUH PADA MEMBER PRIA MAG (MUSCLE ACADEMY GYM)

Desmon Trisandi1, Eko Juli Fitrianto2, Yasep Setiakarnawijaya 2

1Program Studi Ilmu Keolahragaan
2Fakultas Ilmu Keolahragaan Universitas Negeri Jakarta, Kampus B, Jakarta

Abstrak: Penelitian ini dilaksanakan di Muscle Academy Gym FIK UNJ. Metode yang digunakan ialah eksperimen dengan menggunakan desain Pre-Test dan Post-Test. Sampel yang digunakan berjumlah 15 orang dari 60 populasi member pria Muscle Academy Gym yang aktif.
Disampaikan tentang nilai rata-rata (x) dari hasil yang didapatkan pada tes awal 64,66 kg dan pada tes akhir 64,08 kg. Dari hasil analisis data diperoleh selisih rata-rata (MD) 0,58 dengan standar deviasi perbedaan (SDD) 0,123 standar error perbedaan rata-rata (SEMD) 0,032. Dalam perhitungan selanjutnya diperoleh nilai t-hitung sebesar 18,12 dan t tabel 2,14 pada taraf signifikan 5% dengan demikian nilai t hitung > t tabel yang menunjukkan bahwa hipotesis nihil (Ho) ditolak dan hipotesis alternatif (H1) diterima. Maka didapat kesimpulan bahwa terdapat pengaruh aktivitas kerja HIIT Treadmill selama 30 menit terhadap kehilangan cairan tubuh pada member pria Muscle Academy Gym.
Kata Kunci : High Intensity Interval Training, Treadmill, Cairan Tubuh.
Pengaruh Aktifitas Fisik Aerobik Sesaat terhadap Kadar Glukosa Darah Puasa pada Mahasiswa Ilmu Keolahragaan Universitas Negeri Medan
Authors: Harahap Novita Sari 
Published: August 2017

PENGARUH AKTIFITAS FISIK AEROBIK SESAAT TERHADAP KADAR GLUKOSA DARAH PUASA PADA MAHASISWA ILMU KEOLAHRAGAAN UNIVERSITAS NEGERI MEDAN

Novita Sari Harahap1

1Fakultas Ilmu Keolahragaan, Universitas Negeri Medan.

Abstrak.Aktifitas fisik memiliki peranan yang sangat penting dalam mengendalikan kadar gula dalam darah, dimana saat melakukan aktifitas fisik terjadi peningkatan pemakaian glukosa oleh otot yang aktif sehingga secara langsung dapat menyebabkan penurunan glukosa darah. Tujuan penelitian ini adalah untuk mengetahui adanya pengaruh aktifitas aerobik sesaat terhadap kadar glukosa darah puasa. Penelitian ini merupakan Kuasi-eksperimental dengan rancangan pre-post-test group design. Subjek penelitian sebanyak 10 orang diambil dengan menggunakan tehnik purposive sampling. Kadar glukosa darah diukur sebelum dan setelah aktifitas fisik aerobik. Analisis data menggunakan uji t- berpasangan untuk mengetahui perbedaan sebelum dan sesudah perlakuan. Hasil penelitian menunjukkan terdapat perbedaan yang signifikan sebelum dan setelah aktifitas fisik aerobik sesaat terhadap penurunan kadar glukosa darah puasa (82,5Â±11,58 vs 70,0Â±7,05; p=0,023). Kesimpulannya yaitu aktivitas fisik aerobik memiliki pengaruh terhadap penurunan kadar glukosa darah puasa.
Kata Kunci : Aktifitas fisik aerobik, Glukosa darah
KONDISI SUMUR DAN PEMODELAN ARAH ALIRAN AIRTANAH BEBAS PADA BENTUKLAHAN FLUVIOMARIN DI JAKARTA
Authors: Setiawan Cahyadi , Suratman Suratman , Marfa,i Muh Aris 
Published: August 2017

ABSTRACT
Growing population have an impact on the strategy of fulfillment the water need and degradation of groundwater quality in Jakarta, especially in fluviomarine landforms in Jakarta. The purpose of this study was to determine the condition of wells and create a model of groundwater flow direction on fluviomarine landforms based on the season. Methods in this research study include three main aspects, namely population, characteristics of the object under study, and analysis. The population in this study using 30 groundwater wells sample representative of the population. Relating to the characteristics of the object under study, this study using a survey method. The survey is a sample survey on wells population who still use unconfined groundwater. About data analysis, then in this study used quantitative and qualitative approaches to the modeling of the groundwater flow direction using the Inverse Distance Weighted (IDW) in ArcGIS. The results showed that the unconfined groundwater wells in the study area consisted of dug wells and pantek wells. It is generally known that groundwater levels in the rainy season are higher than the dry season with a depth of groundwater level in the dry season to be deeper than the rainy season. Most of the groundwater level in organic settlements in the study area is below sea level, whereas in planned settlements is rarely found people who use groundwater. The depth of unconfined groundwater well less than 20 m with a thickness of water on the wells in the rainy season are thicker than the dry season. Groundwater flow direction along the north coast of central and western parts likely to lead to the mainland, while the southern part has a groundwater flow that is likely to lead to the North. Keywords: Fluviomarine Landforms In Jakarta; Unconfined Groundwater; Groundwater Flow Direction
Bulk and Surface Aqueous Speciation of Calcite: Implications for Low-Salinity Waterflooding of Carbonate Reservoirs
Authors: Yutkin Maxim P. , Mishra Himanshu , Patzek Tadeusz W. , Lee John , Radke Clayton J. 
Published: August 2017

Summary
Low-salinity waterflooding (LSW) is ineffective when reservoir rock is strongly water-wet or when crude oil is not asphaltenic. Success of LSW relies heavily on the ability of injected brine to alter surface chemistry of reservoir crude-oil brine/rock (COBR) interfaces. Implementation of LSW in carbonate reservoirs is especially challenging because of high reservoir-brine salinity and, more importantly, because of high reactivity of the rock minerals. Both features complicate understanding of the COBR surface chemistries pertinent to successful LSW. Here, we tackle the complex physicochemical processes in chemically active carbonates flooded with diluted brine that is saturated with atmospheric carbon dioxide (CO2) and possibly supplemented with additional ionic species, such as sulfates or phosphates.
When waterflooding carbonate reservoirs, rock equilibrates with the injected brine over short distances. Injected-brine ion speciation is shifted substantially in the presence of reactive carbonate rock. Our new calculations demonstrate that rock-equilibrated aqueous pH is slightly alkaline quite independent of injected-brine pH. We establish, for the first time, that CO2 content of a carbonate reservoir, originating from CO2-rich crude oil and gas, plays a dominant role in setting aqueous pH and rock-surface speciation.
A simple ion-complexing model predicts the calcite-surface charge as a function of composition of reservoir brine. The surface charge of calcite may be positive or negative, depending on speciation of reservoir brine in contact with the calcite. There is no single point of zero charge; all dissolved aqueous species are charge determining. Rock-equilibrated aqueous composition controls the calcite-surface ion-exchange behavior, not the injected-brine composition. At high ionic strength, the electrical double layer collapses and is no longer diffuse. All surface charges are located directly in the inner and outer Helmholtz planes.
Our evaluation of calcite bulk and surface equilibria draws several important inferences about the proposed LSW oil-recovery mechanisms. Diffuse double-layer expansion (DLE) is impossible for brine ionic strength greater than 0.1 molar. Because of rapid rock/brine equilibration, the dissolution mechanism for releasing adhered oil is eliminated. Also, fines mobilization and concomitant oil release cannot occur because there are few loose fines and clays in a majority of carbonates. LSW cannot be a low-interfacial-tension alkaline flood because carbonate dissolution exhausts all injected base near the wellbore and lowers pH to that set by the rock and by formation CO2. In spite of diffuse double-layer collapse in carbonate reservoirs, surface ion-exchange oil release remains feasible, but unproved.
Polymer Stability After Successive Mechanical-Degradation Events
Authors: Jouenne S.. , Chakibi H.. , Levitt D.. 
Published: August 2017

Summary
A key challenge in polymer-flood forecasting is the prediction of polymer stability far from the injector. Degradation may result from various mechanical-degradation events in surface facilities and at the wellbore interface, as well as possible oxidative degradation caused by the presence of oxygen and reduced transition metals. All these steps must be closely examined to minimize degradation and ensure propagation of a viscous polymer solution.
In this paper, polymer solutions are pushed toward degradation rates that would be unacceptable for enhanced-oil-recovery applications to better understand the underlying physics. Multistep degradation events are induced in various geometries, such as capillaries, blenders, and porous media.
For the geometries and range of polymer and salt concentrations investigated, degradation (as defined here) approaches an asymptotic value as the number of degrading events increases. An empirical normalization method is proposed, allowing superimposition of curves of viscosity loss vs. time across multiple possible geometries. The normalization procedure is applied to predict the extent of degradation during a field injection in which near-wellbore degradation occurs after degradation in surface facilities. We predict that degradation in the porous medium reaches a stable value after passing through approximately 6 mm of rock.
Finally, degradation is proposed as a tool to probe the molecular-weight distribution and to narrow the polydispersity of polymers, which can be used for maximizing both viscosifying power and injectivity simultaneously.
EFEKTIVITAS MODEL PEMBELAJARAN KOOPERATIF TIPE TTW DENGAN TSTS TERHADAP HASIL BELAJAR MATERI TEORI KINETIK GAS
Authors: Joko Budi Poernomo Siti Nurjanah, 
Published: August 2017

Penelitian ini bertujuan untuk menganalisa efektifkah penggunaan model pembelajaran kooperatif tipe TTW (Think Talk Write) dengan TSTS (Two Stay Two Stray) terhadap hasil belajar siswa materi teori kinetik gas. Penelitian ini dilakukan di SMA Futujiyyah Mranggen Demak, merupakan penelitian eksperimen dengan posttest only control group design. Populasi pada penelitian ini seluruh siswa jurusan IPA kelas XI SMA Futuhiyyah Mranggen Demak tahun pelajaran 2014/2015. Pengambilan sampel penelitian ini menggunakan teknik simple random sampling dengan mengambil dua kelas secara acak dari populasi sebagai kelas kontrol dan kelas eksperimen. Pengumpulan data menggunakan metode dokumentasi dan metode tes. Analisis uji gain memberikan hasil peningkatan 0.170 untuk siswa yang diajar menggunakan kooperatif tipe Think Talk Write dengan Two Stay Two Stray dan -0,206 untuk siswa yang diajar menggunakan konvensional. Kesimpulannya adalah penerapan model pembelajaran kooperatif tipe Think Talk Write dengan Two Stay Two Stray efektif meningkatkan hasil belajar siswa materi teori kinetik gas.
Hydraulic characterization and transient response of pressure reducing valves: laboratory experiments
Authors: Meniconi Silvia , Brunone Bruno , Mazzetti Elisa , Laucelli Daniele B. , Borta Giovanni 
Published: August 2017

Abstract
A pressure reducing valve (PRV) regulates the outlet pressure regardless of the fluctuating flow and varying inlet pressure, thereby reducing leakage and mitigating the stress on the downstream water distribution network (WDN). Notwithstanding the crucial importance of PRVs, few experimental data are available in the literature. The aim of this paper is to overcome this gap by means of the results of a large number of tests carried out at the Water Engineering Laboratory of the University of Perugia, Italy. These tests have been executed on a standard type of PRV in steady-state conditions, to characterize it, and in unsteady-state conditions, to check its transient response. A broad range of laboratory conditions simulating possible events in WDNs has been examined and both short and long duration monitoring have been carried out. The analysis of the tests demonstrates the versatility of PRVs as a powerful tool for pressure management, and also when the flow condition changes according to the users' demand pattern. In fact, their transient response is appropriate with small pressure oscillations generated by the PRV self-adjustment. Moreover, proper PRV modelling has to include both its mechanical behaviour and the characteristics of the pressure pipe system in which it is installed.
One-pot Electro-synthesis and Characterization of Chitosan Capped Superparamagnetic Iron Oxide Nanoparticles (SPIONs) from Ethanol Media
Authors: Aghazadeh Mustafa , Karimzadeh Isa 
Published: August 2017

Background:
Superparamagnetic iron oxide nanoparticles (SPIONs) are known for various
biomedical applications like hyperthermia, magnetic resonance imaging and drug delivery. These
magnetic particles should be capped with certain biocompatible agents. In this regard, it is a technological
challenge to control size, shape, stability, and dispersibility of SPIONs in desired mediums.

Methods:
Cathodic electrosynthesis procedure was used for the preparation of naked SPIONs. Naked
SPIONs were prepared by galvanostatic electrodeposition by applying the current density of 5 mA
cm-2 for 30 min. For preparation of chitosan capped SPIONs, only the composition of deposition
electrolyte was changed with the addition of 1 g L–1 chitosan. The prepared NPs were characterized
through FE-SEM, TEM, XRD, DLS and VSM techniques.

Results:
The XRD patterns have the well-defined and relative broad diffraction peaks, which confirmed
spinal magnetite structure for both naked CS capped SPIONs. FE-SEM images which clearly
showed that both samples have a well-defined 10nm particles with no obvious aggregation. IR bands
related to the chemical bonds of chitosan were observed, which proved a chitosan coating. The superparamagnetic
nature of the prepared naked and CS-SPIONs were confirmed by VSM data.

Conclusion:
In summary, a facile electrochemical based platform was developed for the synthesis of
chitosan capped superparamagnetic iron oxide nanoparticles from ethanol media. The observed
weight loss (~16%) during the calcination of the CS- SPIONs, and also the presence of vibration
bands related to the chitosan bands confirmed the chitosan layer on the SPIONs. Also, superparamagnetic
nature of the CS capped SPIONs was confirmed by VSM data.
Numerical method for an assessment of steady and motion-excited flowfields in a transonic cascade wind tunnel
Authors: Tateishi Atsushi , Watanabe Toshinori , Himeno Takehiro , Uzawa Seiji 
Published: August 2017

AbstractThis article presents a numerical method and its application for an assessment of the flow field inside a wind tunnel. A structured computational fluid dynamics (CFDs) solver with overset mesh technique is developed in order to simulate geometrically complex configurations. Applying the developed solver, a whole transonic cascade wind tunnel is modeled and simulated by a two-dimensional manner. The upstream and downstream periodicity of the cascade and the effect of the tunnel wall on the unsteady flow field are focused on. From the steady flow simulations, the existence of an optimum throttle position for the best periodicity for each tailboard angle is shown, which provides appropriate aerodynamic characteristics of ideal cascades in the wind tunnel environment. Unsteady simulations with blade oscillation is also conducted, and the difference in the influence coefficients between ideal and wind tunnel configurations becomes large when the pressure amplitude increases on the lower blades.
Effectiveness of high irradiance for short-time exposures on polymerization of composite under metal brackets
Authors: Faria-e-Silva André L. , Covell David A. , Ferracane Jack L. , Pfeifer Carmem S. 
Published: August 2017

ABSTRACT

Objective:
To evaluate the effect of different curing modes available in a dental light-curing unit on degree of conversion (DC) of a composite photoactivated under a metal orthodontic bracket.

Materials and Methods:
The average irradiance and total energy delivered by three curing modes (standard, high, and extra power) of a multiwave LED unit (Valo Cordless, Ultradent Products, South Jordan, Utah) were measured using the longest time available for each mode (20, 4, and 3 seconds, respectively). Brackets (n = 3/group) were bonded to molar epoxy resin replicas using each curing mode. Mesiodistal sections, 0.5 mm thick, were assessed using an infrared spectrometer microscope. Spectra of composite beneath the brackets were sequentially collected using the mapping tool in near-infrared (NIR)-transmittance mode. Composite conversion was mapped between the mesial and distal edges of the bracket base using 400-μm steps for a total of 10 measurements per specimen. Data from irradiance and total energy were analyzed by one-way ANOVA, while data of DC were analyzed with two-way repeated measures ANOVA (α = 0.05).

Results:
The highest DC values were observed for standard power (mean 56%, P &lt; .05), while no difference was observed between high (50%) and extra power (49%) modes. Regarding the site of measurement, higher DC was observed close to the bracket edges (52%, P &lt; .05).

Conclusions:
The use of high irradiance for a short time slightly reduced the DC. The small magnitude of reduction suggests that use of a high irradiance protocol is a clinically valid approach when bonding metal brackets.