bluuebunny/crossref_metadata_2025_split huggingface dataset:
Structure of NaFeSiO4, NaFeSi2O6, and NaFeSi3O8 glasses and glass-ceramics
Authors: Ahmadzadeh Mostafa , Scrimshire Alex , Mottram Lucy , Stennett Martin C. , Hyatt Neil C. , Bingham Paul A. , McCloy John S. 
Published: March 2020

AbstractThe crystallization of iron-containing sodium silicate phases holds particular importance, both in the management of high-level nuclear wastes and in geosciences. Here, we study three as-quenched glasses and their heat-treated chemical analogs, NaFeSiO4, NaFeSi2O6, and NaFeSi3O8 (with nominal stoichiometries from feldspathoid, pyroxene, and feldspar mineral groups, i.e., Si/Fe = 1, 2, and 3, respectively) using various techniques. Phase analyses revealed that as-quenched NaFeSiO4 could not accommodate all Fe in the glass phase (some Fe crystallizes as Fe3O4), whereas as-quenched NaFeSi2O6 and NaFeSi3O8 form amorphous glasses. NaFeSi2O6 glass is the only composition that crystallizes into its respective isochemical crystalline polymorph, i.e., aegirine, upon isothermal heat-treatment. As revealed by Mössbauer spectroscopy, iron is predominantly present as fourfold-coordinated Fe3+ in all glasses, though it is present as sixfold-coordinated Fe3+ in the aegirine crystals (NaFeSi2O6), as expected from crystallography. Thus, Na-Fe silicate can form a crystalline phase in which it is octahedrally coordinated, even though it is mostly tetrahedrally coordinated in the parent glasses. Thermal behavior, magnetic properties, iron redox state (including Fe K-edge X-ray absorption), and vibrational properties (Raman spectra) of the above compositions are discussed.
Biochars prepared from rabbit manure for the adsorption of rhodamine B and Congo red: characterisation, kinetics, isotherms and thermodynamic studies
Authors: Huang Wen , Zhang Min , Wang Yinhai , Chen Jiao , Zhang Jianqiang 
Published: March 2020

Abstract
Biochar was prepared from rabbit faeces (RFB550) at 550 °C through pyrolysis and was characterised using elemental analysis, scanning electron microscopy, Brunauer–Emmett–Teller analysis and Fourier transform infrared spectroscopy (FTIR). The related factors, kinetics, isothermal curves and thermodynamics of the adsorption behaviours were investigated by conducting batch experiments. The results revealed the adsorption equilibrium of rhodamine B (RhB) and Congo red (CR) onto RFB550 with initial concentrations of 30 mg · L−1 at 25 °C and 210 min, and the best adsorption was observed when the pH of the RhB and CR solutions was 3 and 5, respectively. Pseudo-second-order kinetics was the most suitable model for describing the adsorption of RhB and CR onto RFB550, indicating that the rate-limiting step was mainly chemical adsorption. The isotherm data were best described by the Freundlich model, and the adsorption process was multi-molecular layer adsorption. Thermodynamic parameters revealed the spontaneous adsorption of RhB and CR onto RFB550. According to the results of the FTIR analysis, the oxygen-containing functional groups and aromatic structures on the surface of RFB550 provided abundant adsorption sites for RhB and CR, and the adsorption mechanism was potentially related to the hydrogen bonds and π–π bonds.
Big Data Analysis for Trend Recognition Using Machine Learning Techniques
Authors: Abraham Cerene Mariam , Elayidom Mannathazhathu Sudheep , Santhanakrishnan Thankappan 
Published: March 2020

Background:
Machine learning is one of the most popular research areas today. It relates
closely to the field of data mining, which extracts information and trends from large datasets.

Aims:
The objective of this paper is to (a) illustrate big data analytics for the Indian derivative
market and (b) identify trends in the data.

Methods:
Based on input from experts in the equity domain, the data are verified statistically using
data mining techniques. Specifically, ten years of daily derivative data is used for training and
testing purposes. The methods that are adopted for this research work include model generation
using ARIMA, Hadoop framework which comprises mapping and reducing for big data analysis.

Results:
The results of this work are the observation of a trend that indicates the rise and fall of price
in derivatives , generation of time-series similarity graph and plotting of frequency of temporal data.

Conclusion:
Big data analytics is an underexplored topic in the Indian derivative market and the
results from this paper can be used by investors to earn both short-term and long-term benefits.
Safety of Liraglutide in Type 2 Diabetes and Chronic Kidney Disease
Authors: Mann Johannes F.E. , Fonseca Vivian A. , Poulter Neil R. , Raz Itamar , Idorn Thomas , Rasmussen Søren , von Scholten Bernt Johan , Mosenzon Ofri ,   on behalf of the LEADER Trial Investigators
Published: March 2020

Background and objectives
The glucagon-like peptide-1 receptor agonist liraglutide demonstrated cardiovascular and kidney benefits in the LEADER trial, particularly in participants with CKD.

Design, setting, participants, & measurements
This post hoc analysis evaluated the safety of liraglutide treatment in patients with CKD in LEADER. Overall, 9340 patients were randomized to liraglutide or placebo, both in addition to standard of care. Of those, 2158 patients had CKD versus 7182 without CKD (defined as eGFR <60 versus ≥60 ml/min per 1.73 m2, respectively); 966 patients had macroalbuminuria and 2456 had microalbuminuria (urine albumin-creatinine ratio >300 mg/g and ≥30 to ≤300 mg/g, respectively). At baseline, the mean eGFR in patients with CKD was 46±11 ml/min per 1.73 m2 versus 91±22 ml/min per 1.73 m2 in those without CKD. Time to first event within event groups was analyzed using Cox regression with treatment group, baseline eGFR group, or baseline albuminuria group as fixed factors.

Results
Overall, serious adverse events were more frequently recorded in patients with CKD compared with those without CKD (59% versus 50%; interaction P=0.11); however, they occurred to the same extent in those on liraglutide versus placebo. Similarly, no interaction of adverse events with randomized therapy was observed in patients with micro- or macro- versus normoalbuminuria (interaction P=0.11). Risk of severe hypoglycemia was significantly reduced with liraglutide versus placebo in patients with CKD or with micro- or macroalbuminuria (hazard ratio, 0.63 [95% CI, 0.43 to 0.91] and 0.57 [95% CI, 0.40 to 0.82], respectively).

Conclusions
In LEADER, the use of liraglutide in those with CKD was safe, with no difference between patients with and without CKD.

Clinical Trial registry name and registration number

ClinicalTrials.gov; NCT01179048 (https://clinicaltrials.gov/ct2/show/NCT01179048).
Solving General Nonlinear Programming Problems with a Genetic Algorithm
Authors: Tenenev V. A. , Shaura A. S. 
Published: March 2020

В работе предложен генетический алгоритм решения задачи условной оптимизации общего вида с дополнительной популяцией для поиска допустимых особей и модифицированным турнирным отбором. При поиске решения акцент сделан на его допустимости, поэтому оценка приспособленности особей в первую очередь определяется не сравнением значений целевой функции, а качеством выполнения ограничений. Такой подход сочетает в себе эффективность генетических алгоритмов при решении задач глобальной оптимизации с простым и естественным непосредственным учетом условий в виде равенств или неравенств при поиске оптимального решения, не требуя дополнительных преобразований исходной задачи или сведения ее к безусловной оптимизации. Важной особенностью метода является то, что он в значительной степени обладает универсальностью и хорошо подходит для задач с большим числом ограничений произвольного вида и функций со сложным характером − овражных, многоэкстремальных, недифференцируемых. В работе реализован гибридный генетический алгоритм с дополнительным обучением элиты, что значительно повышает скорость сходимости и качество получаемого решения по сравнению с классическим алгоритмом. Сравнение результатов решения известных тестовых задач с опубликованными ранее результатами применения существующих подходов свидетельствует о перспективности и эффективности представленного алгоритма.
MENYOAL KUALIFIKASI DAN KOMPETENSI PROFESI GURU: KEGAGALAN LPTK ATAU PELUANG
Authors: Effendi Moh Mahfud 
Published: March 2020

pada awal abad 20 ini, dunia pendidikan indonesia menghadapi 3 tantangan besar yaitu sebagai akibat krisis ekonomi, dituntuk untuk mempertahankan hasil-hasil pembangunan pendidikan yang telah dicapai, (2) untuk antisipasi era gelobal , dituntut untuk mempersiapkan SDM yang kompeten agar mampu bersaing, (3) sejalan dengan otonomi daerah, perlu adanya perubahan dan penyesuaian sistem pendidikan nasional. untuk menjawab tantangan ini memerlukan perhatian dan komitmen bersama yang di motori pemerintah melalui kebijakan pembangunan pendidikan.sebagai suatu profesi, terdapat sejumlah kompetensi yang besar dimiliki oleh seorang pendidik, yaitu kompetensi pribadi, kompetensi profesional, dan kompetensi sosial kemasyarakatan (Wina Sanjaya,2005). pemerintah juga secara tegas mengatakan hal tersebut dengan mengeluarkan peraturan pemerintah. PP No.19 tahun 2005 (SNP) mensyaratkan bahwa (Paulina, 2006) standar pendidik dan tenaga kependidikan harus memeliki kualifikasi akademik dan kompetensi (pedagogik, kepribadian, profesional, sosial) sebagai agen pembelajaran, sehat jasmani dan rohani , serta memiliki kemampuan untuk mewujudkan tujuan pendidikan nasional.Key Wood : Kualifikasi tenaga kependidikan
Reservoir Productivity Analysis of Intercalated limestone and Anhydrite Beds in Zagros Folded Belt, Kurdistan Region of Iraq
Authors: Rashid Fraidoon 
Published: March 2020

The Early Jurassic rock of Alan Formation in Barda Rash field has been examined using petrophysical wireline log analysis, drilling stem test, mud logging reports, drilling cutting and core samples for evaluation of reservoir potentiality and fluid production throughout heterogeneous rocks intervals in three exploration and appraisal wells. The Alan Formation consists of intercalation of light, chalky and argillaceous limestone beds with shale layers in the upper part and dominantly anhydrite layers from the middle to the lower parts of the formation. Qualitatively, weak oil shows of light brown to dark brown and blackish heavy oil have been observed while drilling. Furthermore, light brown trace oil has been recorded in the fracture surfaces of the core samples. The wireline log analysis provided an overestimated result for the hydrocarbon bearing interval identification and fluid movability index as the anhydrite layers confused the fluid distribution detection in the drilled interval. However, the combined results achieved from the mud logging reports and drilling stem tests were operated within the drilled intervals shown a limited productivity levels from the limestone beds of the Early Jurassic Alan Formation. The oil production from the studied interval does not exceed 10% and the entire production rates were composed of formation water with a trace amount of gases. As a result, the Early Jurassic Alan Formation can be considered as a tight carbonate reservoir rocks in the Barda Rash field.
Peran Narrow Band-Imaging pada Karsinoma Nasofarings
Authors: Priyanto Priyanto , Herdini Camelia 
Published: March 2020

AbstrakKarsinoma nasofarings (KNF) merupakan keganasan yang paling sering ditemukan pada bagian kepala dan leher yang memerlukan kajian jelas dalam penegakkan diagnosis agar penatalaksanaan yang diberikan sesuai dan akurat. Salah satu kendala yang ditemukan pada KNF adalah diagnosis dini dan rekurensi. Narrow Band-Imaging adalah salah satu teknik pemeriksaan noninvasive dan mudah dilakukan, menggunakan teknik optikal terkini dan filter sinar biru dengan panjang gelombang tertentu, yang mampu meningkatkan sensitivitas pemeriksaan nasoendoskopi dengan pengamatan perubahan struktur vaskularisasi akibat pertumbuhan tumor terutama untuk KNF dengan sifat pertumbuhan endofitik. Pola-pola perubahan vaskularisasi yang ditimbulkan oleh KNF dapat diamati dengan jelas melalui pemeriksaan ini dan diharapkan juga mampu memberikan kepastian waktu bagi klinisi dalam menentukan saat yang tepat untuk melakukan tindakan lanjut yang lebih invasif seperti biopsi sehingga diperoleh hasil yang lebih akurat di saat yang tepat.Kata kunci: Narrow Band-Imaging, Karsinoma Nasofarings, Endoskopi AbstractNasopharyngeal carcinoma (NPC) is the most common cancer in the otolaryngology, head and neck region, that needs an accurate examination for the management. An obstacle in management of NPC is the early diagnosis of the disease and recurrency. Narrow-band imaging, is a non-invasive diagnostic technique, which uses optical technique and special long wave blue filter, that will increase the sensitivity of the nasoendoscopy in the diagnosis of NPC by observing the changes in vascularisation, especially in exophitic growth. This creates on better opportunity of clinician to do more invasive diagnostic testing at earlier stage of the cancer.Keywords:Narrow Band-Imaging, Nasopharyngeal carcinoma, Endoscopy
Prevalensi Depresi pada Pensiunan Pegawai Negeri Sipil yang Mengambil Dana Pensiun di Bank BTPN Cabang M. Yamin Padang
Authors: Putri Finna Dwi , Yanis Amel , Syamsir Elmatris 
Published: March 2020

AbstrakPensiun seringkali dianggap sebagai kenyataan yang tidak menyenangkan sehingga menjelang masanya tiba, sebagian orang sudah merasa cemas karena tidak tahu kehidupan seperti apa yang akan dihadapi kelak. Individu yang memiliki kondisi mental yang tidak stabil sering menjadi akar penyebab terjadinya gangguan mental semasa pensiun yaitu depresi. Depresi merupakan salah satu gangguan mood yang ditandai oleh hilangnya perasaan kendali seseorang. Tujuan penelitian ini adalah untuk mengetahui prevalensi depresi pada pensiunan Pegawai Negeri Sipil yang mengambil dana pensiun di Bank BTPN Cabang M. Yamin Padang. Penelitian ini bersifat deskriptif dan subjek dipilih secara consecutive sampling dengan jumlah 277 orang. Instrumen yang digunakan adalah kuesioner Beck Depression Inventory dan hasil yang didapatkan disajikan dalam bentuk tabel distribusi frekuensi. Hasil penelitian ini menunjukkan bahwa prevalensi depresi pada pensiunan Pegawai Negeri Sipil yang mengambil dana pensiun di Bank BTPN Cabang M. Yamin Padang sebesar 27,8%. Usia terbanyak berada pada kategori usia ≥60 tahun, gejala depresi terbanyak terjadi pada pensiunan laki-laki, prevalensi depresi terbanyak pada pensiunan Pegawai Negeri Sipil golongan IIIa. Prevalensi terbanyak adalah pensiunan yang menjalani lama pensiun ≤10 tahun.Kata kunci: depresi, pensiun, pegawai negeri sipil AbstractRetirement is often regarded as unpleasant fact that before it’s time comes, most people are worried because they do not know what kind of life to be faced later. Individuals who have an unstable mental condition is often the root causes of mental disorders during retirement i.e depression. Depression is a mood disorder characterized by loss of control of one’s feelings. The objective of this study was to determine the prevalence of depression in retired civil servants who take the retirement funds in BTPN Bank branch M. Yamin Padang. This was a descriptive study and subjects were chosen by consecutive sampling with total sampling 277 persons. Instrument of this study was questionnaire of Beck Depression Inventory and the results obtained are presented in the form of a frequency distribution table. The result of this study indicated that the prevalence of depression in retired civil servants who take retirement funds in BTPN Bank branch M. Yamin Padang was 27.8%. Most of them are at the age category of ≥60 years, most of symptoms of depression is in men, the largest prevalence of depression in retired civil servant class IIIa. The most of them are the retirees who have retired for ≤10 years.Keywords: depression, retirement, civil servants
Gambaran Morfologi Spermatozoa pada Perokok Sedang di Lingkungan PE Group yang Datang ke Bagian Biologi Fakultas Kedokteran Universitas Andalas
Authors: Apriora Vinda Dwi , Amir Arni , Khairsyaf Oea 
Published: March 2020

AbstrakTingginya angka pria perokok di seluruh dunia dan fakta bahwa asap rokok mengandung lebih dari 4000 bahan berbahaya yang dapat mengganggu sistem reproduksi. Gangguan yang terjadi dapat berupa penurunan kualitas spermatozoa yang dapat dilihat melalui analisis sperma. Tujuan penelitian ini adalah untuk melihat gambaran morfologi spermatozoa pada Perokok sedang di Lingkungan PE Group. Ini merupakan penelitian deskriptif dari September 2012 hingga 2013, menggunakan metode total sampling sebanyak 33 pria perokok yang mendatangi Laboratorium Biologi Fakultas Kedokteran Universitas Andalas Padang. Parameter kelainan morfologi spermatozoa (teratozoospermia) diukur menurut kriteria WHO yaitu apabila jumlah sperma dengan bentuk normal yang dicacah ≥ 30%. Semua sampel menunjukkan hasil yang normal. Kesimpulan hasil penelitian ini adalah perokok sedang yang diteliti memiliki gambaran morfologi spermatozoa yang normal, dengan abnormalitas kepala sebagai abnormalitas terbanyak dan bentuk kelainan kepala besar sebagai bentuk kelainan yang paling banyak ditemukan.Kata kunci: rokok sigaret, analisis sperma, morfologi sperma, teratozoospermia AbstractThe large number of men worldwide smoke and the fact that cigarette smoke contains detriment substances that can affect the health holistically and especially fertility it self is the main reason. It contains more than four thousands of detrimental substances for instance oxidants, carcinogenic and mutagenic agents. The objective of this study was to evaluate sperm parameters especially it’s morphology among medium smokers in PE Group, ltd. In this descriptive study, started from September 2012 until 2013. A total of thirty three males who were classified as medium smokers were enrolled to Biology Laboratory Medical Faculty of Andalas University Padang. Teratozoospermia parameters were measured according to the World Health Organization criteria and Biology Infertility Division’s in which the normal Sperm morphology counts ≥30%. All of samples showed normal results, with the sperm-head abnormality as the major abnormality. The conclusions is all participants showed normal spermatozoa morphology counts and the head abnormality is the major detriments.Keywords: cigarette smoking, sperm analyzing, sperm morphology, teratozoospermia
Perbedaan Kadar LDL-kolesterol pada Pasien Diabetes Melitus Tipe 2 dengan dan tanpa Hipertensi di RS Dr. M. Djamil Padang Tahun 2011
Authors: Noviyanti Finisia , Decroli Eva , Sastri Susila 
Published: March 2020

AbstrakHipertensi seringkali menjadi kondisi komorbid yang menyertai diabetes melitus tipe 2. Diabetes melitus, hipertensi dan peningkatan LDL kolesterol merupakan keadaan yang sering dijumpai saling berkaitan. Tujuan penelitian ini adalah untuk melihat perbedaan kadar LDL kolesterol penderita diabetes melitus tipe 2 dengan dan tanpa hipertensi. Penelitian ini menggunakan desain cross sectional comparatif. Pengumpulan data dilakukan dengan observasi data rekam medis pasien diabetes melitus tipe 2 dengan dan tanpa hipertensi tahun 2011 di RS. Dr. M. Djamil Padang. Analisis statistik menggunakan uji chi-square dan uji t-berpasangan. Hasil penelitian menemukan kadar LDL kolesterol pada pasien diabetes melitus tipe 2 dengan hipertensi (137,56±41,43 mg/dl) lebih tinggi dibandingkan tanpa hipertensi (94,39±35,36 mg/dl). Uji chi-square menunjukkkan adanya hubungan yang bermakna antara peningkatan kadar LDL kolesterol dengan kejadian hipertensi (p<0,05). Uji t-berpasangan menunjukkan bahwa adanya perbedaan bermakna kadar LDL kolesterol antara kelompok pasien diabetes melitus dengan hipertensi dan tanpa hipertensi (p<0,05). Penelitian ini menyimpulkan adanya perbedaan yang bermakna kadar LDL kolesterol pada pasien diabetes melitus tipe 2 dengan hipertensi dan tanpa hipertensi di RS. Dr. M. Djamil Padang.Kata kunci: LDL kolesterol, diabetes melitus tipe 2, hipertensi AbstractHypertension is often a comorbid conditions that accompany diabetes mellitus type 2. Diabetes mellitus, hypertension and increased LDL cholesterol is a condition that is often be found related one another. The objective of this study was to determine difference LDL cholesterol level among diabetes melitus type 2 with hypertension and without hypertension.This research used cross-sectional comparatif design. The data was collected through observation of the patient’s medical records diabetes mellitus type 2 with hypertension and without hypertension in 2011 at the hospital Dr. M. Djamil Padang. The statistical analysis used was chi-square test and paired-T test. The results found that the levels of LDL cholesterol in patients with diabetes mellitus type 2 with hypertension (137,56±41,43) was higher than without hypertension (94,39±35,36). Chi square test was found that a significant correlation between elevates levels of LDL cholesterol to the incidence of hypertension (p<0,05). Paired-t test showed that there were significant differences of LDL cholesterol levels between groups of diabetes mellitus type 2 with hypertension and diabetes mellitus type 2 without hypertension (p<0,05).This research conclude that there are differences in the levels of LDL cholesterol in patients with diabetes melitus type 2 with hypertension and without hypertension in the hospital Dr. M. Djamil Padang in 2011.Keywords: LDL cholesterol, diabetes mellitus type 2, hypertension
Faktor Risiko yang Berpengaruh terhadap Kejadian Berat Badan Lahir Rendah di RSUP Dr. M. Djamil Padang
Authors: Mahayana Sagung Adi Sresti , Chundrayetti Eva , Yulistini Yulistini 
Published: March 2020

Abstrak Berat Badan Lahir Rendah (BBLR) adalah bayi yang lahir dengan berat badan kurang dari 2500 g. BBLRmerupakan prediktor utama angka kesakitan dan kematian bayi. Tujuan penelitian ini adalah untuk menentukan faktorrisiko ibu, plasenta, janin dan lingkungan yang berpengaruh terhadap kejadian BBLR. Penelitian ini bersifat analitikdengan desain cross-sectional dengan mengumpulkan data retrospektif rekam medis ibu yang melahirkan bayi BBLRdi RSUP Dr. M. Djamil Padang dari Januari sampai Desember 2012. Pada 72 sampel yang didapatkan, faktor risikojanin dengan jenis kelamin laki-laki (61,1%) dan status sosioekonomi rendah (52,8%) memiliki proporsi yang lebihbesar pada kejadian BBLR. Analisis bivariat chi-square menunjukkan faktor risiko anemia (p=0,001) dan kelainanplasenta (p=0,049) memiliki hubungan statistik yang signifikan terhadap kejadian BBLR prematur dan dismatur.Pengaruh terbesar secara statistik terdapat pada faktor risiko anemia (p=0,001) dan paritas (p=0,022) pada analisismultivariat regresi logistik. Anemia, kelainan plasenta dan paritas merupakan faktor risiko yang berpengaruh terhadapkejadian BBLR prematur dan dismatur di RSUP Dr. M. Djamil Padang.Kata kunci: BBLR, prematur, dismatur, faktor risikoAbstract Low birthweight (LBW) is a birth weight under 2500 g. LBW is a major predictor of infant morbidity and mortality.The objective of this study was to determine maternal, placental, fetal and environmental risk factors that influencingLBW. This was a cross-sectional study by obtaining retrospective datas from medical records of mother who deliveredLBW babies at RSUP Dr. M. Djamil Padang from January until December 2012 period. Male fetal sex (61.1%) and lowsocioeconomic status (52.8%) were found in high rates on total 72 cases of LBW. Chi-square test showed anemia(p=0.001) and placental abnormalities (p=0.049) were statistically significant in LBW with premature and dysmature.Logistic regression test indicates anemia (p=0.001) and parity (p=0.022) are statistically influence LBW. Anemia,placental abnormalities and parity are significant risk factors resulting low birth weight babies with premature anddismature in RSUP Dr. M. Djamil Padang.Keywords: LBW, premature, dysmature, risk factors