bluuebunny/crossref_metadata_2025_split huggingface dataset:
MODEL LATIHAN KELINCAHAN SEPAKBOLA
Authors: Arifin Ramadhan , Warni Herita 
Published: April 2019

Tujuan penelitian pengembangan adalah menghasilkan produk baru yang dipakai dalam kegiatan melatih kelincahan pemain sepakbola, Penelitian ini menggunakan pengembangan metode penelitian Research & Development (R & D) dari Borg and Gall. Subjek dalam penelitian ini adalah 42 mahasiswa JPOK FKIP Unlam Banjarmasin Kalimantan Selatan. Teknik pengumpulan data dilakukan dengan cara observasi, studi dokumentasi, wawancara, dan tes. Analisis data dilakukan secara kualitatif dan kuantitatif. Pengembangan model melalui uji coba terbatas, uji coba luas dan uji efektiifitas.Efektivitas model latihan kelincahan sepakbola pada mahasiswa ini diuji statistik dengan uji signifikansi perbedaan dengan SPSS 16 dapat hasil t-hitung = 13.976, db = 41 dan p-value = 0.00 < 0.05 yang berarti terdapat perbedaan yang signifikan kelincahan mahasiswa sebelum dan sesudah diberi model latihan kelincahan pada pemain sepakbola pada mahasiswa. Dalam penelitian ini dapat diambil kesimpulan (1) Model latihan kelincahan sepakbola dapat dikembangkan dan diterapkan dalam melatih kelincahan pemain sepakbola (2) Model latihan kelincahan efektif dapat meningkatkan kelincahan pada mahasiswa JPOK FKIP Unlam Banjarmasin Kalimantan Selatan. Kata kunci: Model latihan, Kelincahan dan sepakbola
PENGARUH LATIHAN JUGGLING SEPAKBOLA TERHADAP HASIL HOOP SEPAK TAKRAW MENGGUNAKAN PUNGGUNG KAKI PADA SISWA PUTRA KELAS X SMA NEGERI 1 TANJUNG RAJA
Authors: Andriadi Andriadi 
Published: April 2019

Dalam penelitian ini tujuan dari permasalahan yang ingin dilihat adalah apakah latihan juggling sepakbola berpengaruh terhadap hasil hoop sepak takraw menggunakan punggung kaki pada siswa putra kelas X SMA Negeri 1 Tanjung Raja.. Metode penelitian yang digunakan adalah metode eksperimen murni (true-eksperimental research). Dalam penelitian ini yang menjadi populasi adalah seluruh siswa putra kelas X SMA Negeri 1 Tanjung Raja yang berjumlah 79 siswa dan dari populasi tersebut diambil sebagian untuk dijadikan sampel penelitian dengan cara ordinal pairing yaitu 31 siswa menjadi kelompok eksperimen yang di beri perlakuan juggling sepakbola dan 31 siswa menjadi kelompok kontrol yang tidak diberi perlakuan. Setelah diberikan perlakuan selama 5 minggu dengan frekuensi latihan 3-4 kali seminggu ternyata kelompok eksperimen tidak mengalami peningkatan. Berdasarkan analisis data dengan cara statistik uji t dengan taraf signifikan α (0,05) dan t0,95(60)), maka di dapat bahwa t hitung < t tabel (1.3246 < 1.67). Sedangkan sesuai dengan hasil analisis varian kelompok eksperimen didapat F hitung yaitu Fo=1,4104. Sedangkan varians beda kelompok eksperimen dan kelompok kontrol yaitu Fo hitung =1,6322. Adapun F tabel, dengan dbf adalah dbk, yaitu 1 lawan dbd, yaitu 60, taraf signifikan Ft1% = 7,08 dan Ft 5%= 4,00. Ternyata harga Fo hitung = 1,4140 lebih kecil daripada F tabel baik untuk kesalahan 1% maupun 5% (1,4104<4,00<7,08). Karena harga F hitung lebih kecil daripada harga F tabel baik untuk kesalahan 1% maupun 5%, maka Ho diterima (berarti Ha ditolak). Dengan demikian hipotesis yang diajukan tidak dapat diterima kebenarannya bahwa juggling sepak bola berpengaruh terhadap hasil hoop sepak takraw menggunakan punggung kaki pada Siswa Putra Kelas X SMA Negeri 1 Tanjung Raja. Berdasarkan paparan di atas, maka didapat simpulan yaitu tidak ada pengaruh latihan juggling sepakbola yang signifikan terhadap hasil hoop sepak takraw menggunakan punggung kaki pada siswa putra kelas X SMA Negeri 1 Tanjung Raja.Kata kunci :Latihan Juggling Sepakbola, dan Hoop Sepak Takraw.
PENGEMBANGAN MODEL PERMAINAN “TEMBAK KALENG” SEBAGAI ALTERNATIF VARIASI PERMAINAN BOLA KECIL DALAM PEMBELAJARAN PENJASORKES BAGI SISWA KELAS VII SMP 1 RANTAU KABUPATEN TAPIN TAHUN 2018
Authors: Bahruddin Bahruddin 
Published: April 2019

Metode penelitian pengembangan yang mengacu pada Borg & Gall. Desain uji coba menggunakan desain eksperimental dengan dua tahap: 1) skala kecil 16 siswa, 2) skala besar 30 siswa. Subjek uji coba adalah sasaran pemakaian produk, yaitu siswa kelas VII SMP 1 Rantau. Teknik pengumpulan data yang digunakan dalam penelitian ini yaitu data kualitatif dan kuantitatif. Instrumen yang digunakan dalam pengembangan produk menggunakan angket dan kuisioner. Teknik analisis data yang digunakan berupa presentase untuk menguji kelayakan kualitas dan keterimaan produk terhadap produk pengembangan berdasarkan skala klasifikasi persentase Guilford. Hasil yang diperoleh berdasarkan hasil uji coba skala kecil persentase pada Aspek Psikomotor (65,63%), Aspek Kognitif (91%) dan Aspek Afektif (97,5%). Hasil uji coba skala besar dengan persentase pada Aspek Psikomotor (81,7%), Aspek Kognitif (95,7%) dan Aspek Afektif (93,3%). Simpulan dari penelitian ini yaitu: 1) Permainan Tembak Kaleng yang dikembangkan dapat digunakan sebagai alternatif permainan bola kecil dalam pembelajaran Penjasorkes bagi siswa kelas VII SMP, 2) Pengembangan permainan Tembak Kaleng untuk pembelajaran Penjasorkes siswa kelas VII SMP. Disarankan: 1) Guru pendidikan jasmani hendaknya mempertimbangkan penggunaan produk modifikasi permainan Tembak Kaleng sebagai alternatif dalam menyampaikan pembelajaran bola kecil, 2) Apabila produk pengembangan model permainan Tembak Kaleng ini akan digunakan sebagai alternatif permainan bola kecil dalam pembelajaran Penjasorkes bisa disesuaikan dengan kondisi yang ada di Sekolah.Kata kunci: Model Permainan, Tembak Kaleng dan Bola Kecil
Conformance Control Improvement by Coupling Microgel and Low Salinity Waterflooding in Fractured Reservoirs
Authors: Alhuraishawy Ali K. , Sun Xindi , Bai Baojun , Wei Mingzhen , Almansour Abdullah 
Published: April 2019

Abstract
The recovery from fractured reservoirs is usually low. The areal heterogeneity is one result of the fractured reservoir. Low salinity waterflooding (LSWF) and preformed particle gel (PPG) have recently drawn great interest from the oil industry. LSWF can only increase displacement efficiency, and it has little or no effect on sweep efficiency whereas PPG can plug fractures and improve sweep efficiency, but they have little effect on displacement efficiency. The coupled method bypasses the limitations of each method when used individually and improves both displacement and sweep efficiency.
The main objective of this study was to determine whether the coupling technologies can improve conformance control in fractured sandstone reservoirs. Before the study was conducted, the effects of low salinity waterflooding, number of fractures, and PPG strength were studied. The PPG was injected into the fracture at a flow rate of 2.0 ml/min. Brine was injected at a different flow rate after PPG placement to test the effect of flow rate on the PPG's plugging efficiency. Laboratory experiments showed that the oil recovery factor and the Frrw increased when the concentration of injected brine changed from conventional salinity to low salinity and the areal sweep efficiency was improved. However, the PPG extruded pressure decreased when the PPG swelled in a low-brine concentration. At a high-flow rate, there was no significant effect on the Frrw. Coupling two different EOR technologies can improve displacement and sweep efficiency and, in turn, enhance conformance control.
Beyond interviews and focus groups: a framework for integrating innovative qualitative methods into randomised controlled trials of complex public health interventions
Authors: Davis Katy , Minckas Nicole , Bond Virginia , Clark Cari Jo , Colbourn Tim , Drabble Sarah J. , Hesketh Therese , Hill Zelee , Morrison Joanna , Mweemba Oliver , Osrin David , Prost Audrey , Seeley Janet , Shahmanesh Maryam , Spindler Esther J. , Stern Erin , Turner Katrina , Mannell Jenevieve 
Published: April 2019

Abstract
Background: Randomised controlled trials (RCTs) are widely used for establishing evidence of the effectiveness of interventions, yet public health interventions are often complex, posing specific challenges for RCTs. While there is increasing recognition that qualitative methods can and should be integrated into RCTs, few frameworks and practical guidance highlight which qualitative methods should be integrated and for what purposes. As a result, qualitative methods are often poorly or haphazardly integrated into existing trials, and researchers rely heavily on interviews and focus group discussions. To improve current practice, we propose a framework for innovative qualitative research methods that can help address the challenges of RCTs for complex public health interventions.

Methods: We used a stepped approach to develop a practical framework for researchers. This included: (1) a systematic review of the innovative qualitative methods mentioned in the health literature; (2) in-depth interviews with 23 academics from different methodological backgrounds working on RCTs of public health interventions in 11 different countries; and (3) a framework development and group consensus-building process.

Results: The findings are presented according to the CONSORT Statement categories for ease of use. We identify the main challenges of RCTs for public health interventions alongside each of the CONSORT categories and potential innovative qualitative methods that overcome each challenge are listed as part of a Framework for the Integration of Innovative Qualitative Methods into RCTs of Complex Health Interventions. Innovative qualitative methods described in the interviews include: rapid ethnographic appraisals, document analysis, diary methods, interactive voice responses and SMS, community mapping, spiral walks, pair interviews and visual participatory analysis.

Conclusions: The findings of this study point to the usefulness of observational and participatory methods for trials of complex public health interventions, offering a novel contribution to the broader literature about the need for mixed methods approaches. Integrating a diverse toolkit of qualitative methods can enable appropriate adjustments to the intervention and/ or process of data collection during RCTs, which in turn can create more sustainable and effective interventions. However, such integration will require a cultural shift towards the adoption of method-neutral research approaches, transdisciplinary collaborations, and publishing regimes.
Vision status of children aged 7 - 15 years referred from school vision screening in Norway during 2003 - 2013: a retrospective study
Authors: Falkenberg Helle K , Langaas Trine , Svarverud Ellen 
Published: April 2019

Abstract
Background: Undetected vision problems is an important cause of reduced academic achievement, performance in everyday life and self-esteem. This receives little attention in national health care services in Norway even though most of these vision problems are easily correctable. There are no published data on how many Norwegian schoolchildren are affected by correctable vision problems. This study aims to determine vision status in primary and secondary schoolchildren by describing the vision status in children referred from vision screening during the 10-year period of 2003 – 2013.
Methods: Of the 1126 children (15%) aged 7 - 15 years referred to the university eye clinic by the school screening program, all 782 who attended the eye clinic were included in the study. Patient records were retrospectively reviewed with regard to symptoms, refractive error, best corrected visual acuity (BCVA) of logMAR, binocular vision, ocular health and management outcomes.
Results: Previously undetected vision problems were confirmed in 650 (83%) of the children. The most frequent outcomes were glasses (346) or follow-up (209), but types of treatment modalities varied with age. Mean refractive errors were hyperopic for all age groups but reduced with age (ANOVA, p < 0.001). Overall, 51% were hyperopic, 32% emmetropic and 17% myopic. Refractive errors did not change across the decade (linear regression, all p > 0.05). Mean logMAR BCVAs were better than 0.0 and improved with age (ANOVA, p < 0.001). The most prevalent symptoms were headaches (171), near vision problems (149) and reduced distance vision (107).
Conclusions: The vision screening identified children with previously undetected visual problems. This study shows that the types of visual problems varied with age and that most problems could be solved with glasses. Our results stress the importance of regular eye examinations and that vision examinations should be included in primary health care services. Furthermore, there is a need for raised awareness among parents and teaching staff regarding vision problems in children.
It’s not you, it’s the design - common problems with patient monitoring reported by anesthesiologists: a mixed qualitative and quantitative study.
Authors: Tscholl David , Handschin Lucas , Rössler Julian , Weiss Mona , Spahn Donat R. , Nöthiger Christoph B. 
Published: April 2019

Abstract
BACKGROUND
Patient monitoring is critical for perioperative patient safety as anesthesiologists routinely make crucial therapeutic decisions of the information displayed on patient monitors. Research has shown that today's patient monitoring provides room for improvement regarding known issues such as information overload and alarm fatigue. The rationale for this study was to learn more about the problems anesthesiologists face with patient monitors and to provide improvement suggestions for next-generation patient monitoring.

METHODS
We conducted a two-center qualitative and quantitative study. First, we interviewed 120 anesthesiologists (physicians and nurses) about the topic: "Common problems with patient monitoring in your daily work." Through deductive and inductive coding, we identified themes and subthemes from the interviews. Secondly, we conducted a field survey with a separate group of 25 anesthesiologists who rated their agree- or disagreement with central statements based on the themes identified from the interviews.

RESULTS
We identified the following six main topics: 1. "Alarms," 2. "Artifacts," 3. "Software," 4. "Hardware," 5. "Human Factors," 6. "System Factors," and 17 sub-topics. The central statements based on each major theme were: 1. “problems with alarm settings complicate the work with patient monitoring.” (96% agreed) 2. “artifacts complicate the assessment of the patient's condition.” (56% agreed) 3. “information overload makes it difficult to get a quick overview of the situation.” (56% agreed) 4. “problems with cables make working with patient monitors tedious.” (88% agreed) 5. “factors related to human performance lead to patient conditions not being perceived on the monitor.” (64% agreed) 6. “Insufficient standardization: Switching back and forth between monitors from different manufacturers makes it difficult to work with patient monitors.” (88% agreed). All statements differed significantly from the neutral opinion.

CONCLUSION
This study provides an overview of the problems anesthesiologists face with patient monitoring. Some of the issues identified were previously less known, such as problems with monitor cables (e.g., entanglement and worn connectors), human factors (e.g., fatigue and distractions), and systemic factors (e.g., insufficient standardization between manufacturers). According to our findings, an ideal monitor should reduce false positive alarms to a minimum, use as few cables as possible, and be easy to interpret.
Assessment of the Deformation of the Outer Nuclear Layer in the Epiretinal Membrane Using Spectral-Domain Optical Coherence Tomography
Authors: Takagi Seiji , Kudo Shigeki , Yokota Hideo , Akiba Masahiro , Mandai Michiko , Hirami Yasuhiko , Takahashi Masayo , Kurimoto Yasuo , Ishida Masahiro 
Published: April 2019

Abstract
Background

We aimed to investigate the deformation of the outer nuclear layer using optical coherence tomography in patients with epiretinal membrane (ERM) and its relationship with metamorphopsia.

Methods

Thirty-nine eyes from 39 patients with ERM were included in the study. Patients with the subtypes of pseudo macula hole and lamellar hole were excluded. Twenty-one fellow eyes without macular disease were included as normal controls. Forty-nine B-scan images were obtained in the range of 20 degrees around the macula using SD-OCT. The outer nuclear layer (ONL) was evaluated as a three-dimensional image (3D-ONL) reconstructed using the distance between the ONL and retinal pigment epithelium (RPE) line. The deformation of the ONL was figured at the reference plane and evaluation plane (ONL-B). The characteristic parameters of the ONL-B were defined as circularity, area ratio, and axis ratio. The correlations between these parameters and visual acuity and MCHART score ratio (MH/MV) were then evaluated.

Results

ONL height was significantly higher in ERM patients than in normal controls (54.1 ± 5.3 μm and 84.1 ± 12.9 μm, respectively; P<0.001). In ERM patients, the MV score was 0.53 ± 0.50, the MH score was 0.71 ± 0.61, and the distance from the RPE line to the ONL-B was 153.5 ±13.5µm. The axis of the ONL-B in normal controls and ERM patients was -6.25±21.8 and -1.28±29.1, respectively, which indicates that the ONL is horizontally long in both normal individuals and ERM patients. The circularity and area ratio were significantly smaller in ERM patients than in normal controls. In all ERM patients, MH/MV had a significant correlation with axis (r=-0.29, p=0.034), circularity (r=-0.28, p=0.044), area ratio (r=-0.47, p=0.001). Moreover, we found that the correlation was more significant if the subjects had an axis of the ONL within ± 10 degrees (n=16); the correlations of MH/MV with axis (r=-0.29, p=0.034), circularity (r=-0.53, p=0.021), and area ratio were more significant (r=-0.78, P<0.0001).

Conclusion

The ONL is horizontally long in normal individuals and ERM patients. The direction of metamorphopsia is correlated with the direction of ONL deformation.
Reliability of pleth variability index in predicting preload responsiveness of mechanically ventilated patients under various conditions: a systematic review and meta-analysis
Authors: Liu Tianyu , Xu Chao , Wang Min , Niu Zheng , Qi Dunyi 
Published: April 2019

Abstract
Background: Goal-directed volume expansion is increasingly used for fluid management in mechanically ventilated patients. The Pleth Variability Index (PVI) has been shown to reliably predict preload responsiveness; however, a lot of research on PVI has been published recently, and update of the meta-analysis needs to be completed. Methods: We searched PUBMED, EMBASE, Cochrane Library, Web of Science (updated to November 7, 2018) and the associated references. We also contacted relevant authors and researchers. Results: Twenty-five studies with 975 patients were included in this meta-analysis. All patients were mechanically ventilated. The area under the curve (AUC) of receiver operating characteristics (ROC) to predict preload responsiveness in patients was 0.82 (95% confidence interval (CI) 0.79 - 0.85). The pooled sensitivity was 0.77 (95% CI 0.67-0.85) and the pooled specificity was 0.77 (95% CI 0.71-0.82). The results of subgroup of patients without undergoing surgery (AUC =0.86, Youden index =0.65) and the results of subgroup of patients in ICU (AUC =0.89, Youden index =0.67) were reliable. Conclusion: The reliability of the PVI is limited, but the PVI can play an important role in bedside monitoring for mechanically ventilated patients who are not undergoing surgery. Patients who are expanded with colloid may be more suitable for PVI.
Seroprevalence and molecular characteristics of varicella-zoster virus infection in Chinese children
Authors: Luan Lin , Shen Xiaochen , Qiu Jing , Jing Yang , Zhang Jingqi , Wang Jie , Zhang Jun , Dong Chen 
Published: April 2019

Abstract
Background

Varicella-zoster virus (VZV) infection in children is an important public health problem in China. We performed the current study to explore the seroprevalence of VZV infection in Chinese children in order to provide more information for improvement of varicella vaccination in China.

Methods

3014 serum samples were collected from Chinese kindergarten students aged from four to six years. Anti-VZV IgG and IgM were assayed using enzyme-linked immunosorbent assay. Both ORF22 and ORF62 of VZV were amplified, sequenced, and analyzed by nested PCR.

Results

Totally, 43.9% of boys and 46.3% of girls were vaccinated with varicella vaccine, respectively. The seroprevalence of anti-VZV IgG was 54.4% in the children with varicella vaccination, which was significantly higher than those in unvaccinated children (49.2%) (χ2=8.206, P=0.004). Among of the vaccinated children, the detection rates of VZV IgG antibody increased with age, with 49.4%, 50.9% and 58.9% in 4, 5 and 6-year groups, respectively (Trend χ2=17.202, P=0.002). However, there was no difference in anti-VZV IgG detection rates among those unvaccinated children in different age groups (Trend χ2=8.681, P=0.070). In addition, thirteen boys and 13 girls were positive for anti-VZV IgM, respectively. Among of them, eight children (0.6%) have received varicella vaccination, which was similar to those in unvaccinated children (1.1%). However, only one ORF22 sequence was isolated from an unvaccinated 5-year boy. Compared to the reference VZV sequences, the nucleotide homology was estimated to be 99.7% with genotype J.

Conclusions

Our study indicated that about half of Chinese children aged four to six years have a high risk of VZV infection. It should be helpful for the evaluation on the necessity of varicella immunization in China.
Bandwidth enhancement for thin substrate UHF RFID patch antenna
Authors: Parthiban Prabakar 
Published: April 2019

Abstract
This paper presents an unconventional bandwidth enhancement technique for thin substrate UHF RFID linearly polarized patch antennas. The patch antenna is made from polyethylene dielectric substrate and aluminum adhesive strip conductive layers. A microstrip fed rectangular patch antenna is designed to operate between 902 and 928 MHz UHF RFID frequencies. Impedance bandwidth is enhanced by intentional impedance mismatch at the edge of the patch. An 88.98 MHz impedance bandwidth was achieved through a –32% intentional impedance mismatch. Antenna’s gain and other parameters were not majorly affected by this technique. This technique is also suitable for other applications operating in 433 MHz or 2.4 GHz. Transceivers that can handle reflected power is recommended to use with this type of bandwidth enhancement.
Effects of inorganic ions on the photocatalytic degradation of carbamazepine
Authors: Gao Xiaoya , Guo Qian , Tang Guangbei , Peng Wen , Luo Yongming , He Dedong 
Published: April 2019

Abstract
Carbamazepine (CBZ) is a typical class of pharmaceuticals and personal care products (PPCPs), and is a serious threat to the environment and human health. Photocatalytic degradation is an efficient technology to remove CBZ. However, the present work focused mainly on the improvement of photocatalytic degradation performance. The information about the effects of inorganic ions on the photocatalytic degradation activity of environmental pollutants is still scarce. This study systematically investigated the effects of inorganic ions on the photocatalytic degradation of CBZ in view of the practical applications. The addition of inorganic anions showed a negative effect on photocatalytic degradation of CBZ with the order of inhibition effects of HCO3− &gt; Cl− &gt; NO3−. This was due to the quenching effects of hydroxyl radicals or holes, which decreased the photocatalytic degradation of CBZ. The presence of Al3+ could adsorb on the surface of a photocatalyst to shield the active site, resulting in the decreased CBZ degradation, while coexistence of Ca2+ significantly promoted the photocatalytic degradation of CBZ owing to the enhanced CBZ adsorption. Mg2+ showed concentration and time-dependent effects (suppression or promotion) on the photocatalytic degradation of CBZ.