bluuebunny/crossref_metadata_2025_split huggingface dataset:
Interacciones de corales masivos con céspedes algales y otros organismos en arrecifes del Parque Nacional Natural Tayrona
Authors: Gómez Cubillos Martha Catalina , Sanjuan Muñoz Adolfo , Zea Sven Eloy , Gómez-Cubillos Camila 
Published: November 2019

In coral reefs, competition between sessile benthic organisms for access to space and other resources is a determining factor in community structuring. Recent coral mortality has favored the development of algal turfs, which are now competing with corals, often displacing them,although slowly. To determine the frequency of interactions between coral-turf and coral-other benthic categories, and how their distribution and results (coral wins or coral loses) are modulated by environmental factors, band photo transects were evaluated for 12 stations in the ParqueNacional Natural Tayrona, Santa Marta, Colombian Caribbean. It was found that algal turfs are the most frequent competitors of massive corals, and that the frequency of coral-turf interactions depends on the particular susceptibility of a coral species to the loss of tissue, and past disturbances that have affected the reef in which it lives. Furthermore, the results of these interactions depend on the ways the colonies are organized, meandroidand cerioid colonies being the most successful in competition against turfs, as their vertical growth constitutes an effective avoidance mechanism. By contrast, plocoid colonies are more prone to lose. In general, biological factors (the coral species in question and type of colonial organization) were determinants in the frequency and apparent result of coral-turf interactions, while environmental factors (disturbance gradient, depth, anddegree of wave exposure) appear not to play a predominant role. As a consequence, historical and future changes in coral species cover, and the nature of colony organization in the Santa Marta area, should reflect a combination of their susceptibility to deleterious agents and their capacityto counteract or evade competition, especially with algal turfs.
Alpha glucosidase inhibitory activity of christia vespertilionis leaves extracts: virtual screening
Authors: Norfarahanum Juhar Arifin  , Vikneswari Perumal  , Tavamani Balan  , Suganya Murugesu  , Alfi Khatib  , Mohammed S.M. Saleh  , Norliana Ramli  , Nur Izzati Mohd Ridzuan  , Nur Farhana Mohamad  , Lee Wing Hin  
Published: November 2019

Christia vespertilionis is a medicinal plant belonging to the Fabaceae family and traditionally consumed to manage diabetes. The present study aimed to screen the antidiabetic property by evaluating the α-glucosidase inhibitory activity of multiple C. vespertilionis leaves extracts. C. vespertilionis leaves extracts were prepared using ethyl acetate, ethyl acetate: hexane, ethyl acetate: methanol, methanol, and hexane solvents and screened via α-glucosidase inhibitory assay, using quercetin as the positive control. Potential compounds present in the plant leaves that were reported previously were subjected to molecular docking simulation with Saccharomyces cerevisiae isomaltase (PDB code: 3A4A). The leaves extracts showed the IC50 values of α-glucosidase ranging from 0.195 mg/mL to 0.416mg/mL with ethyl acetate:hexane extract exhibiting highest inhibitory activity with the lowest IC50 value of 0.195 ± 0.004 mg/mL. Some of the compounds reported in previous studies such as quercetin 3-0-glucoside, oleanolic acid methyl ester, β-sitosterol, stigmasterol, geraniol and 2’-hydroxygenistein have shown potential binding energy level during interaction with the protein involving residues such as GLN279, GLN 353, THR306, ASP352 and ASN350 with hydrogen bond, while PHE303 and GLH277 with hydrophobic contact. The results have suggested that C. vespertilionis leaves has the potential to manage the hyperglycemia via α-glucosidase inhibitory activity, and further study to identify potential inhibitors may enhance its use in pharmaceutical application.
Repeated sprint ability (RSA) performance is not related to body height and body weight measurements among perak sukma 2018 male rugby players
Authors: Nor Fazila Abd Malek  , Nur Ikhwan Mohamad  , Mohansundar Sankaravel2  , Sakinah Mohd Hassan  
Published: November 2019

Repeated sprint ability (RSA) is typically used for speed-endurance and agility-endurance training and assessment. RSA is preferred as it mimics actual performance during competition. RSA test involves straight sprint and quick turning movements. Thus, the aim of this study is to determine the relationship between height and body weight measurements on RSA performance, as height and weight may influence the mechanical properties of it. Ten male rugby players (body weight 72.99 ± 14.29 kg, height 169 ± 5.55 cm) selected for Perak SUKMA 2018 team were assessed during centralized training ~9 months prior to their competition. Body weight and height were measured using standard laboratory weight and height scales prior to the RSA test. RSA were hand-timed for 5 repetitions x 2 sets x 60 seconds rest in between repetitions x 5 minutes rest in-between set. The sprints were performed in the evenings, on grass surface with participants wearing full playing attire. Standardized pre-game warm-up and cooling down were performed. Data recorded was analyzed statistically using a t-test comparison for set one versus set two performances. Pearson correlation coefficient was used to analyze the relationship between anthropometric measures and the RSA test. RSA performance has a negative correlation with the athletes’ height (r= -0.233 set 1, r = -0.435 set 2) and body weight (r= -0.556 set 1, r= -0.629 set 2). RSA performance was significantly different between set 1 and set 2 (p=0.001), with set 1 performance better than set 2. Body height and body weight did not influence RSA performance. Athletes involved did not have adequate speed-agility-endurance needed. In practical, selecting athletes based on their body height and body weight with the assumption that taller and heavier athletes may perform better may not be suitable for this kind of sport. On the other hand, using RSA to test and develop the speed-agility-endurance ability for rugby players is suggested.
Menumbuhkan Rasa Sosial Anak Usia Dini Melalui Bermain Dalam Kelompok
Authors: Nanik Yuli Suhartini , Abidin Ratno , Sa'ida Naili 
Published: November 2019

penelitian ini dilakukan pada peserta didik TK B TK’Aisyiyah Bustanul Athfal 6 Surabaya dengan menggunakan penelitian kuantitatif pre eksperimental design dengan model one group pre test-post test. Instrumen yang digunakan adalah berupa lembar observasi, tes (pre test-post test), wawancara dan dokumentasi. Data yang diambil melalui tehnik observasi pada saat proses kegiatan pembelajaran sebelum istirahat dengan memberikan perlakuan (treatmen) sebanyak lima kali. Untuk mengetahui kemampuan sosial peserta didik adalah melalui tes yang dilakukan sebelum dan sesudah perlakuan (treatmen). Hasil penelitian diperoleh pre test sebesar 17.0, post test sebesar 24.5. Analisis data menggunakan uji Wilcoxon dengan taraf kesalahan 5% atau 0,05 dengan jumlah sampel 8 anak diperoleh nilai T hitung = 0, T tabel = 3. Hal ini berarti ada pengaruh bermain dalam kelompok terhadap perkembangan kemampuan sosial anak usia dini di TK B TK ‘Aisyiyah Bustanul Athfal 6 Surabaya. Terbukti anak mampu menerima pendapat teman dalam kelompok, anak mampu menerima hasil kerja teman dalam kelompok, anak mampu mengikuti kegiatan dengan teman dalam kelompok, anak mampu memecahkan masalah secara bersama-sama. Kata kunci: Kemampuan sosial, anak usia dini. Abstrack: the research was conducted on B‘Aisyiyah Bustanul Athfal 6 kindergarten students of Surabaya by using quantitative pre experimental research design with one group pre test-pos test. The instrument used is in form of piece of observation, test (pre test-pos test), interview and documentation. Man takes technique data through observation during the the process learning activities before break with give treatment five times. To understand the social students is through tests that were conducted before and after treatment. The result of research is the pre test is 17.0, post test is 24.5. The data analysis used The Wilcoxon test with an error rate 5% or 0,05 with using sample 8 children so we can get the value Thitung = 0, Ttabel = 3. The maining is there was influece of playing in group to grow the social early childhood in TK B TK ‘Aisyiyah Bustanul Athfal 6 Surabaya. The proved are the children are able to accept friend’s opinion in grups, children are able to accept the works of frieds in groups, children are able to follow activities with friends in groups, children are able to solve the problem together. Key words: Social skills, early childhood
PENAKSIRAN PENJUALAN PRODUK BERDASARKAN PENDEKATAN MODEL REGRESI NEGATIF BINOMIAL
Authors: Marliana Reny Rian 
Published: November 2019

AbstrakPenelitian bertujuan untuk membandingkan hasil penaksiran parameter model regresi binomial negative dengan model Poisson untuk underreported counts pada penelitian sebelumnya. Model regresi dibentuk pada data penjualan produk yang mengalami underreporting counts, akibat keterlambatan input data ke aplikasi penjualan produk (sales cycle). Pada penelitian sebelumnya, model yang digunakan merupakan gabungan antara distribusi Binomial dan distribusi Poisson. Parameter model regresi ditaksir menggunakan pendekatan Bayes dan simulasi Markov Chain Monte Carlo melalui Algoritma Gibbs Sampling. Hasil penaksiran menunjukkan adanya perbedaan antara banyaknya penjualan yang dilaporkan dengan banyaknya penjualan produk yang sebenarnya. Besar perbedaan tersebut merupakan banyaknya penjualan produk yang tidak terlaporkan. Pada penelitian lanjutan ini, model yang digunakan adalah Model Regresi Negatif Binomial. Parameter regresi ditaksir menggunakan metode Iterasi Newton Rapson. Hasil penaksiran menunjukkan selisih yang cukup besar dimana model Poisson untuk underreported counts lebih robust sesuai dengan komponen musiman yang ada.Kata Kunci: underreported, generalized poisson, negative binomial AbstractThe goal of study is to compare the parameters of the negative Binomial regression model and the Poisson Model for underreported counts in the previous study. A model is a regression model for the number of product sales that run ito underreporting counts, caused by a delay on input process to the product sales applications (called sales cycle). The model used in the previous study is a mixture of the poisson and the binomial distributions developed by Winkelmann (1996). The regression parameters are estimated by a Bayesian approach and Markov Chain Monte Carlo simulation using Gibbs sampling algorithm. The results show the difference between the actual number and the reported number. This difference is the number of unreported product sales. In this study, the model used is the negative binomial regression model. The regression parameters are estimated using Newton Rapson iteration method. The results show a big gap from the previous study. It means that the Poisson Model for underreported counts is more robust in accordance with the seasonal components.Keywords: underreported, generalized poisson, negative binomial
KREATIVITAS SISWA DALAM MENYELESAIKAN SOAL MATEMATIKA BERDASARKAN TINGKAT KEMAMPUAN MATEMATIKA
Authors: Wulandari Diyah Ayu , Afifah Dian Septi Nur 
Published: November 2019

AbstrakPenelitian ini berangkat dari latar belakang pemikiran mengenai perlunya meningkatkan kreativitas siswa. Proses pembelajaran yang hanya terpaku pada buku pelajaran, menyelesaikan soal-soal sesuai dengan rumus yang terdapat dalam buku tersebut akan menyebabkan kreativitas siswa tidak dapat berkembang secara maksimal. Perbedaan kemampuan matematika siswa dapat menyebabkan perbedaan tingkat kreativitas siswa. Dari latar belakang tersebut, maka diambil judul penelitian Kreativitas Siswa Dalam Menyelesaikan Soal Matematika Berdasarkan Tingkat Kemampuan Matematis. Penelitian ini merupakan penelitian kulaitatif jenis deskriptif. Penelitian ini bertujuan untuk mengetahui kreativitas siswa berdasarkan tingkat kemampuan matematika siswa kelas X TKR 1 SMK Veteran Tulungagung. Dari hasil penelitian,dapat disimpulkan bahwa kemampuan matematika siswa mempengaruhi tingkat kreativitas siswa. Semakin tinggi kemampuan matematika siswa, maka makin tinggi pula kreativitasnya.Kata Kunci: kreativitas siswa, kemampuan matematika, soal matematika AbstractThis research departs from the background of thinking about the need to improve student creativity. The process of learning is only fixated on the textbook, solving the problems in accordance with the formulas contained in the book will cause students' creativity can not develop optimally. Differences in students' math skills can lead to different levels of student creativity. From the background, then taken the title of research Student Creativity in Solving Mathematics Problem Based on Mathematical Ability Level. This research is a descriptive type categorative research. This study aims to determine the creativity of students based on the level of mathematics ability of students of class X TKR 1 SMK Veteran Tulungagung. From the research result, it can be concluded that students' mathematical ability influence student's creativity level. The higher the students' math skills, the higher their creativity.Keyword: student creativity, mathematical ability, math problems
PENGARUH CONTEXTUAL TEACHING AND LEARNING DAN SELF REGULATED LEARNING TERHADAP KEMAMPUAN KONEKSI MATEMATIS
Authors: Anwar Syahrul , Pujiastuti Heni , Mutaqin Anwar 
Published: November 2019

Penelitian ini bertujuan untuk mengetahui pengaruh model contextual teaching and learning dan self-regulated learning terhadap kemampuan koneksi matematis siswa, ditinjau dari siswa kategori self-regulated learning (tinggi, sedang, rendah). Populasi penelitian ini adalah seluruh siswa SMK Darul Fikri Pandeglang, sampel dipilih dua kelas secara acak, yaitu kelas X RPL 1 sebagai kelas eksperimen, dan kelas X TSM 1 sebagai kelas kontrol. Pengumpulan data dilakukan melaui tes dan non tes. Tes berupa 6 soal kemampuan koneksi matematis, sedangkan non tes berupa soal angket self-regulated learning. Pretest diberikan sebagai tes awal sebelum perlakuan contextual teaching and learning, sedangkan posttes dilakukan setelah diberikan perlakuan contextual teaching and learning. Hasil yang diperoleh setelah proses pembelajaran dengan contextual teaching and learning dan self regulated learning terlihat adanya pengaruh yang signifikan terhadap kemampuan koneksi matematis siswa. Dengan demikian, dapat disimpulkan bahwa pembelajaran dengan model contextual teaching and learning dan self-regulated learning berpengaruh terhadap kemampuan koneksi matematis siswa.
Cardiac Resynchronization Therapy- Single center experience in Nepal
Authors: Raut Roshan , KC Man Bahadur , Rajbhandari Sujeeb , Dhungana Murari , Sharma Mukunda , Joshi Surakshya , Bajracharya Prashant 
Published: November 2019

Background and Aims: Cardiac resynchronization therapy (CRT) has become an established treatment modality for patients with advanced heart failure. CRT abbreviates the dysynchronus heart failure mainly by correcting left ventricular dysynchrony. In the last three years, CRT has been regularly done in Shahid Gangalal National Heart Center(SGNHC) which has provided us the platform to report the outcome of CRT, for the first time in Nepal. The aim of this study is to review the recent clinical experience and outcome of CRT in our centre.
Methods: All consecutive patients who underwent CRT at SGNHC from July, 2016 to July, 2019 were reviewed retrospectively.
Results: Altogether 42 patients underwent CRT. Mean age was 65±11 years (range 43 to 84). Coronary sinus cannulation was successful in 41 patients. In one patient, LV lead delivery was unsuccessful. Thus, procedural success was obtained in 95% (40 out of 42) patients. LV lead dislodgement occurred in three patients (7%). Coronary sinus dissection occurred in two patients (5%). Biventricular (BiV) paced QRS was significantly narrower compared to baseline QRS (127ms Vs 162ms, p<0.01). During mean follow up of 12±10 months (range 1 to 30 months), there was significant improvement in the clinical outcomes: NYHA class (1.8 Vs 2.9, p<0.01), LVEF (22.3 Vs 27.5, p<0.01), left ventricle internal diameter in systole (LVIDs), (57 Vs 60.5 mm, p<0.01). The CRT responder rate was 86%. Super-responder was observed in 12% of patients.
Conclusion: In SGNHC, Cardiac resynchronization therapy is emerging as a routine treatment strategy with a reasonable efficacy and safety outcome.
Condom use by Nepalese youth at last sex with most recent partner other than wife or non-live-in partner
Authors: Shakya Dhanendra Veer 
Published: November 2019

This study attempts to examine the effects of some selected socio-economic variables like level of education, occupation, current working status, wealth index, place of residence and frequency of exposure to mass media like newspapers/magazines, radio and television; demographic variables like age group, age at first sex, marital status, migration status and travelling away from home in the past 12 months; and cultural variables like religion and caste/ethnicity, and spatial distribution by ecological zones, development regions and provinces on condom use by Nepalese youth males at last sex with most recent partner other than wife or non-live-in partner using multivariate logistic regression analysis. It has used 2016 Nepal Demographic and Health Survey data files with weighted cases. Data are analyzed using percentage and frequency tables and statistical tests are carried out using binomial logistic regression analysis of dependent variable controlling for the independent variables presented in the table of this study.
The significant findings of the study are that youth males with primary level of education are less likely to use condom at last sex with most recent partner other than wife or non-live- in partner than those who have higher than secondary level of education. Not working youth males are more likely to use condom than those engaged agricultural occupation. Likewise, ever married youth males are less likely to use condom than their never married counterparts. Newar youth males are less likely to use condom than youth males of Hill Chhetri. Youth males living in Terai are less likely to use condom than youth males living in Hill. Similarly, youth males living in Far-western region are more likely to use condom compared to their counterparts of Central regions.
Geological-Field Simulation of the "Well – Formation" System for Low-permeable Reservoirs
Authors: Lozynskyi O. Ye. , Lozynskyi V. O. 
Published: November 2019

The aim of the research is the creation of an algorithm and a computer program to study the feasibility of poor wells developing. The research method is hydrodynamic simulation of the “well – formation” system by studying the behavior of low-permeable oil-filled reservoirs in the process of creating rising overburdens on the formation (abnormal formation pressures). Geological factors limiting the productivity of an oil well are analyzed. The degree of the decrease of the negative effect of these factors on oil influx to the bottomhole is predicted. The authors have studied the possibility of creating supplementary filtering channels in the bottomhole zone and the possibility of increasing hydroconductivity of the exposed reservoirs within the maximum possible drainage area. The authors also suggest the method to study poor wells using multiple injection of fluid into the reservoir and a gradual increase of the injection pressure and the overburden on the formation. In order to simulate the bottomhole pressure drop in a multi-cycle study, the authors make an algorithm based on an equation linking the pressure at a certain time point after the well shut-in to record the pressure decline curve with an integrated indicator. This indicator takes into account the volume of injection of fluid into the reservoirs before the well shut-in, the total duration of the injection of fluid into the reservoirs, the duration of time from the beginning of the injection of fluid into the reservoirs till the end of the process and the coefficient of the reservoir conductivity at each research cycle. The developed algorithm and computer technology provide the accumulation, storage, processing and reproduction of objective geological-field information. This will give a possibility to make a grounded decision about taking measures to increase the influx of production to the wells. The final result of these measures will be the transfer of out-balance reserves in the drainage areas of the wells to balance reserves and an increase in the total oil production at the field.
Comida, comunicação e identidade na convivência intercultural entre jovens
Authors: Pellerano Joana 
Published: November 2019

Esse artigo visa a discutir como se dá a relação entre comunicação, consumo alimentar e identidade em uma situação de convivência intercultural vivida por 450 estudantes oriundos das 27 unidades federativas do Brasil, que moram e estudam na Escola Sesc de Ensino Médio (Esem). Por meio de observação participante e grupos de discussão, a pesquisa mostra que os sujeitos acionam o consumo alimentar como um meio de comunicação na convivência intercultural com diferentes objetivos.
Instrumented surgical treatment for metastatic spinal tumors: is fusion necessary?
Authors: Park Se-Jun , Lee Keun-Ho , Lee Chong-Suh , Jung Joon Young , Park Jin Ho , Kim Gab-Lae , Kim Ki-Tack 
Published: November 2019

OBJECTIVEThe goal of this study was to evaluate the radiographic and clinical results of instrumentation surgery without fusion for metastases to the spine.METHODSBetween 2010 and 2017, patients with spinal tumors who underwent instrumentation without fusion surgery were consecutively evaluated. Preoperative and postoperative clinical data were evaluated. Data were inclusive for last follow-up and just prior to death if the patient died. Instrumentation-related complications included screw migration, screw or rod breakage, cage migration, and screw loosening.RESULTSExcluding patients who died within 6 months, a total of 136 patients (140 operations) were recruited. The average follow-up duration was 16.5 months (median 12.4 months). The pain visual analog scale score decreased from 6.4 to 2.5 (p < 0.001) and the Eastern Cooperative Oncology Group scale score improved (p < 0.001). There were only 3 cases (2.1%) of symptomatic instrumentation-related complications that resulted in revisions. There were 6 cases of nonsymptomatic complications. The most common complication was screw migration or pull-out (5 cases). There were 3 cases of screw or rod breakage and 1 case of cage migration. Two-thirds of the cases of instrumentation-related complications occurred after 6 months, with a mean postoperative period of 1 year.CONCLUSIONSThe current study reported successful outcomes with very low complication rates after nonfusion surgery for patients with spinal metastases, even among those who survived for more than 6 months. More than half of the instrumentation-related complications were asymptomatic and did not require revision. The results suggest that nonfusion surgery might be sufficient for a majority of patients with spinal metastases.