bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of KOH Activator on the Performance of Activated Carbon from Oil Palm Kernel Shell as Supercapacitor Electrode Material
Authors: Perdana Yola Azli , Joni Rahma , Emriadi Emriadi , Aziz Hemansyah 
Published: February 2020

Karbon aktif dari cangkang kelapa sawit sebagai bahan elektroda superkapasitor telah diteliti. Superkapasitor dirangkai dengan metoda plat/sandwich yang dipisahkan oleh separator. Untuk mendapatkan nilai kapasitansi yang besar dilakukan variasi jumlah aktivator terhadap karbon menggunakan aktivator KOH. Sifat fisikokimia dari karbon aktif diteliti dengan melakukan karakterisasi menggunakan XRD (X-Ray Diffraction), SEM-EDX (Scanning Electron Microscopy-Energy Dispersive X-Ray) dan SAA (Surface Area Analyzer) dan sifat elektrokimianya diteliti dengan pengukuran CV (Cyclic Voltammetry). Karbon aktif dengan perbandingan 1:5 memiliki luas permukaan yang paling besar yaitu 793,326 m2/g dan nilai kapasitansi spesifik tertinggi yaitu 99,151 F/g. The activated carbon from oil palm kernel shell as an electrode material for supercapacitors has been investigated. The supercapasitor was assembled by plate/sandwich methods. Both electrodes were separated by using a separator. To increase the capacitancy value, variations in the number of activators on carbon were carried out using KOH activator. The physicochemical properties of activated carbon were investigated by characterizing using XRD (X-Ray Diffraction), SEM-EDX (Scanning Electron Microscopy-Energy Dispersive X-Ray) and SAA (Surface Area Analyzer) and the electrochemical properties were investigated by measuring CV (Cyclic Voltammetry). Activated carbon with a ratio of 1:5 has the largest surface area of 793,326 m2/g and the highest specific capacitance value is 99,151 F/g.Keywords: activated carbon, supercapasitor, activator, surface area, specific capacitance
Application of Desmopressin and conjugated estrogens to reduce the volume of blood loss during arthroplsty of the hip joint in patients with end stage renal disease
Authors: Mushtin N. E. , Tsed A. N. , Dulaev A. K. , Lednev A. A. , Iljushenko K. G. , Shmelev A. V. 
Published: February 2020

The objective was to determine the possibilities of using desmopressin and conjugated estrogens during primary hip joint arthroplasty in patients receiving renal replacement therapy.Methods and materials. The material for the study was data on 53 patients with pathology of the hip joint, who underwent primary arthroplasty from 2016 to 2018. All patients were divided into 2 groups. Group 1 (n=23) – patients not suffering from kidney diseases. Group 2 (n=30) – patients receiving renal replacement therapy. Each group was divided into 2 subgroups: 1 subgroup – comparisons, where the combination of desmopressin/conjugated estrogens was not used. 2 subgroup – control, where desmopressin was used at a dosage of 0.4 mg/kg 2 hours before the incision, conjugated estrogens was used at a dosage of 0.6 mg / kg of body weight within 5 days before the operation.Results. In group 1 (patients not suffering from kidney disease), there was no statistically significant difference between the subgroups. In group 2 (patients receiving hemodialysis), there was a statistically significant difference in the volume of blood loss. Thus, in the subgroup without using additional techniques, the volume of intraoperative blood loss was 769.5±389.3 ml; in the second subgroup (using desmopressin and estrogens) – 479.1±245.2 ml. The difference was statistically significant, p<0.05. The efficiency was 27.9 %.Conclusion. The additional use of conjugated estrogens at a dose of 0.6 mg/kg of body weight within 5 days before the operation, desmopressin at a dose of 0.4 mg/kg of body weight 2 hours before the incision reduced blood loss by 27.9 %. The use of combination of conjugated estrogens and desmopressin in patients not suffering from kidney disease did not affect the amount of blood loss.
A study of patients` quality of life before and after resections of brain meningioma
Authors: Cherebillo V. Yu. , Kurnukhina M. Yu. 
Published: February 2020

The objective was to analyze and evaluate patients` quality of life before and after resection of brain meningioma.Methods and materials. We performed study of 31 patients with brain meningioma. The diagnosis of the studied patients was based on clinical and laboratory data, data of radiation and instrumental methods of research. The analysis of patients` quality of life was carried out in the preoperative, early and late postoperative periods. The patient` age ranged from 37 to 65 years; the median age was 57 years. We chose a special questionnaire-EORTC QLQ-C30 to assess quality of life of the studied pre- and postoperative periods. The questionnaire has been tested in many international clinical studies.Results. In the early postoperative period, the severity of pain increased in the patients under study, nausea and vomiting, constipation occurred more often. However, patients assessed their General health in both early and late postoperative periods better than before the operation. In the late postoperative period, there was a positive dynamics in all scales of the questionnaire.Conclusion. On examination of various parameters of quality of life before and after surgery in patients with brain meningioma, it was found that surgical intervention led to an improvement in the quality of life of patients.
Effectiveness of local injective therapy use for lumbosacral pain syndromes
Authors: Andreev V. V. , Barantsevich E. R. , Sychev A. I. 
Published: February 2020

The objective of the study was to assess the effectiveness of local injection therapy in patients with lumbosacral pain during medical blockades.Methods and materials. The results of treatment of compressive lumbosacral radiculoischemia were studied in prospective trial with placebo control. One of the most valuable criteria of medical effectiveness was decrease of pain intensity by visual analog scale and McGill’s questionnaire. 58 patients were included in the study. Comparison between the groups was carried out depending on the treatment: first group was treated with combination of anesthetic with corticosteroids (diprospan), second group – only anesthetic. Rate of pain decrease was assessed during the first day and for 14 days.Results. In patients with lumbosacral pain treated with combination of anesthetic with corticosteroids, decrease of pain intensity was obtained by visual analog scale and McGill’s questionnaire point. Local corticosteroids use was the most effective with effect in a short time – during the first 24 hours.Conclusion. Short course of local injection therapy had high effectiveness in patients with lumbosacral pain syndrome.
Evaluation of the effectiveness of lipid-lowering agents
Authors: Shevko V. G. , Galas M. A. , Galankin T. L. , Kolbin A. S. 
Published: February 2020

Introduction.Nowadays, lipid-lowering therapy is considered an essential strategy for primary and secondary prevention of cardiovascular outcomes, which is confirmed by numerous studies. Nevertheless, researches are often guided by analysis of surrogate endpoints, which becomes not just everyday practice, but also an actual problem. Surrogate endpoints are wellknown sources of bias that can distort the risk-benefit analysis.Theobjectiveof the study was to assess the significance of lipid-lowering therapy with statins in relation to mortality.Methods and materials.The analysis of prospective controlled trials was carried out with a sample of 2000 patients and more, in which mortality rate was assessed for 2 or more years of statin therapy, as well as systematic literature reviews with a meta-analysis of mortality rates. The search was carried out on websites of the Russian scientific electronic libraries eLibrary and сyberleninka , English-language works – on the PubMed website.Results.An increase in survival during treatment with statins in case of secondary prevention of cardiovascular diseases reached about 2 % after five years’ treatment and was absent after ten years’ treatment. The average increase in life expectancy was only 4.1 days. Primary prevention with statins has not been shown to increase survival significantly.Conclusion.Effectiveness of lipid-lowering therapy with statins as a part of secondary prevention of cardiovascular outcomes assessed by surrogate endpoints could be greatly exaggerated. A biased approach to selecting surrogate endpoints can lead to incorrect results. Similarly, the encouraging results of therapy with statins in the prevention of cardiovascular mortality may be biased when the effect of statins on other causes of death is not considered. Mortality refers to a universal endpoint that characterizes both the effectiveness and safety of a drug.
Requesting physicians’ knowledge of X-radiation exposure from computed tomography scan examinations: A case study of two Nigerian tertiary hospitals
Authors: Paulinus Samson O. , Udoh Benjamin E. , Archibong Bassey E. , Egong Akpama E. , Erim Akwa E. , Ukpong Ekaete V. , Ani Charles C. , Ijever Wueseter A. , Okoro Ulu U. , Agbo Grace A. 
Published: February 2020

Objective:
Physicians who often request for computed tomography (CT) scan examinations are expected to have sound knowledge of radiation exposure (risks) to patients in line with the basic radiation protection principles according to the International Commission on Radiological Protection (ICRP), the Protection of Persons Undergoing Medical Exposure or Treatment (POPUMET), and the Ionizing Radiation (Medical Exposure) Regulations (IR(ME)R). The aim is to assess the level of requesting physicians’ knowledge of ionizing radiation from CT scan examinations in two Nigerian tertiary hospitals.

Materials and Methods:
An 18-item-based questionnaire was distributed to 141 practicing medical doctors, excluding radiologists with work experience from 0 to >16 years in two major teaching hospitals in Nigeria with a return rate of 69%, using a voluntary sampling technique.

Results:
The results showed that 25% of the respondents identified CT thorax, abdomen, and pelvis examination as having the highest radiation risk, while 22% said that it was a conventional chest X-ray. Furthermore, 14% concluded that CT head had the highest risk while 9% gave their answer to be conventional abdominal X-ray. In addition, 17% inferred that magnetic resonance imaging had the highest radiation risk while 11% had no idea. Furthermore, 25.5% of the respondents have had training on ionizing radiation from CT scan examinations while 74.5% had no training. Majority (90%) of the respondents were not aware of the ICRP guidelines for requesting investigations with very little (<3%) or no knowledge (0%) on the POPUMET and the IR(ME)R respectively.

Conclusion:
There is low level of knowledge of ionizing radiation from CT scan examinations among requesting physicians in the study locations.
Taking Lanthanides out of Isolation: Tuning the Optical Properties of Metal-Organic Frameworks
Authors: Anderson Samantha L. , Tiana Davide , Ireland Christopher , Capano Gloria , Fumanal Maria , Gładysiak Andrzej , Kampouri Stavroula , Rahmanudin Aiman , Guijarro Néstor , Sivula Kevin , Stylianou Kyriakos , Smit Berend 
Published: February 2020

Metal organic frameworks (MOFs) are increasingly used in applications that rely on the optical and electronic properties of these materials. These applications require a fundamental understanding on how the structure of these materials, and in particular the electronic interactions of the metal node and organic linker, determines these properties. Herein, we report a combined experimental and computational study on two families of lanthanide-based MOFs: Ln-SION-1 and Ln-SION-2. Both comprise the same metal and ligand but with differing structural topologies. In the Ln-SION-2 series the optical absorption is dominated by the ligand and using different lanthanides has no impact on the absorption spectrum. The Ln-SION-1 series shows a completely different behavior in which the ligand and the metal node do interact electronically. By changing the lanthanide in Ln-SION-1, we were able to tune the optical absorption from the UV region to absorption that includes a large part of the visible region. For the early lanthanides we observe intraligand (electronic) transitions in the UV region, while for the late lanthanides a new band appears in the visible. DFT calculations showed that the new band in the visible originates in the spatial orbital overlap between the ligand and metal node. Our quantum calculations indicated that Ln-SION-1 with late lanthanides might be (photo)conductive. Experimentally, we confirm that these materials are weakly conductive and that with an appropriate co-catalysts they can generate hydrogen from a water solution using visible light. Our experimental and theoretical analysis provides fundamental insights for the rational design of Ln-MOFs with the desired optical and electronic properties.
Facile dissociation of molecular nitrogen using lanthanide surfaces: towards ambient temperature ammonia synthesis
Authors: Chan Jay , Lambie Stephanie , Trodahl Joe , Lefebvre Denis , Le Ster Maxime , Shaib Ali , Ullstad Felicia , Brown Simon , Ruck Ben , Garden Anna , Natali Franck 
Published: February 2020

A combined experimental and computational study is reported on a hitherto unrecognised single lanthanide catalyst for the breaking of molecular nitrogen and formation of ammonia at ambient temperature and low pressure.We combine in situ electrical conductance and electron diffraction measurements to track the conversion from the lanthanide metals to the insulating lanthanide nitrides.The efficiency of the conversion is then interpreted using DFT+U calculations, suggesting a molecular nitrogen dissociation pathway separate from that well-established for transition metals.Finally, we show that exposure of the lanthanide surfaces to both molecular nitrogen and hydrogen results in the formation of ammonia.
Dinamika Sosial Sikap Narcisstic Aksi Demonstrasi Mahasiswa Dalam Prospek Demokrasi Indonesia
Authors: Syahrul Jiwandono Ilham 
Published: February 2020

Abstrak. Penelitian ini bertujuan untuk mengetahui fenomena narcisstic dalam aksi demonstrasi yang dilakukan oleh mahasiswa dalam prospek demokrasi di Indonesia serta faktor-faktor penyebabnya. Pendekatan penelitian menggunakan pendekatan kualitatif. Lokasi penelitian di Program Studi Pendidikan Guru Sekolah Dasar, Universitas Mataram. Sumber data dibagi menjadi dua, yakni primer dan sekunder. Sumber data primer yakni mahasiswa semester 5 yang ikut aksi demonstrasi dan sumber data sekunder yakni hasil observasi dan dokumentasi. Teknik pengumpulan data melalui wawancara, observasi dan dokumentasi. Teknik analisis data melalui reduksi data, penyajian data dan verifikasi. Hasil penelitian menunjukkan: 1) Iklim demokrasi di Indonesia berkembang dengan baik dengan turut sertanya mahasiswa dalam mengontrol legislatif dan eksekutif. 2) Terjadi pergeseran nuansi demonstrasi saat ini dibandingkan dengan beberapa waktu yang lalu. Saat ini mahasiswa cenderung narsis dalam aksi demonstrasi dan melupakan substansi demonstrasi. 3) Faktor yang menyebabkan adalah perkembangan teknologi yang semakin canggih dan membuat mahasiswa ingin menampilkan eksistensi dirinya melalui aksi demonstrasi lalu diunggah di media sosial. 4) Mahasiswa sebagai generasi Z menginginkan setiap aktivitasnya diketahui oleh banyak orang, termasuk melalui aksi demonstrasi yang bertujuan untuk mendapatkan perhatian dan pujian.
Access to Essential Facilities under the Commerce Act in the Light of Experience in Australia, the European Union and the United States
Authors: Korah Valentine 
Published: February 2020

Drawing on recent developments in Australian, United Kingdom and United States jurisprudence, Professor Korah casts doubt on the approach recently taken by New Zealand courts in one of the most controversial areas of competition law: the access to its facilities that a corporation in a dominant position must give to its would-be competitors. She argues that before imposing such obligations courts ought to be more sophisticated in assessing the economic effects of such obligations and especially the need to preserve an incentive to make the considerable investment required to create such facilities. Professor Korah was the 1999 Chapman Tripp Fellow. This article is an edited version of a paper presented at the offices of Chapman Tripp during the tenure of the Fellowship.
PERFORMA KESEHATAN TIKUS Sprague dawley AKIBAT PEMBERIAN YOGHURT PREBIOTIK SEBAGAI ANTIDIARE
Authors: Saputri Lia , Tari Agustina Intan Niken , Hartati Sri 
Published: February 2020

ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh pemberian yoghurt berpotensi prebiotik dengan penambahan ekstrak ubi jalar ungu sebagai antidiare dan mengetahui performa kesehatan tikus sebagai hewan coba. Tikus yang digunakan adalah tikus putih galur Sparague dawley umur 1,5 bulan. Parameter performa kesehatan tikus meliputi kenaikan berat badan, konsumsi pakan dan efisiensi pakan sedangkan parameter antidiare adalah kadar air feses. Rancangan percobaan yang digunakan adalah rancangan acak lengkap dengan 4 faktor perlakuan yaitu Y- = tikus tanpa perlakuan yoghurt prebiotik dan (Enthero pathogenic Escherichia coli) EPEC, Y1 = tikus dengan perlakuan yoghurt prebiotik, Y2 = tikus dengan perlakuan yoghurt prebiotik dan EPEC, Y+ = tikus dengan perlakuan EPEC, setiap perlakuan diulang 5 kali. Data yang diperoleh dianalisis secara statistik dengan Anova. Apabila terdapat beda nyata antar perlakuan dilanjutkan dengan uji DMRT (Duncan Multiple Range Test) pada taraf signifikansi 5%. Hasil penelitian ini menunjukkan bahwa pemberian yoghurt berpotensi prebiotik memberikan pengaruh yang nyata terhadap konsumsi pakan, berat badan, efisiensi pakan dan kadar air feses pada tikus percobaan. Kenaikan berat badan dan efisiensi pakan menunjukkan hasil yang tinggi pada tikus yang tidak terinfeksi EPEC dan menunjukkan hasil yang rendah pada tikus yang terinfeksi EPEC. Kadar air feses dan konsumsi pakan menunjukkan hasil yang tinggi pada tikus yang terinfeksi EPEC dan menunjukkan hasil yang rendah pada tikus yang tidak terinfeksi EPEC. Kata kunci : yoghurt, yoghurt prebiotik dan antidiare.
KAJIAN KUAT TEKAN PAPERCRETE MUTU TINGGI DENGAN BAHAN TAMBAH LIMBAH KERAMIK
Authors: Safarizki Hendramawat Aski , Ristanto Iwan 
Published: February 2020

Papercrete merupakan alternatif beton ringan dengan memanfaatkan limbah kertas yang ada di sekitar kita. Kelemahan dari papercrete adalah mutu kuat tekan yang rendah dikarenakan bahan penyusunnya yang berupa kertas. Target dari penelitian ini adalah merumuskan rancang campur (mix design) dari papercrete mutu tinggi yang tahan terhadap beban dengan bahan tambah limbah keramik yang ramah lingkungan. Dengan memanfaatkan limbah keramik maka dapat mengurangi pencemaran pada lingkungan sekaligus meningkatkan kuat tekan papercrete. Metode yang dipakai dalam penelitian ini adalah uji rancang campur pada laboratorium sehingga didapatkan komposisi campuran mutu tinggi antara papercrete dengan limbah keramik. Tahapan penelitian dimulai dengan pembuatan papercrete dengan tanpa bahan tambah limbah keramik. Kadar campuran kertas yang digunakan adalah 0%, 20%, 20% dan 30% dari volume pasir yang digunakan. Pada penelitian dibuat juga papercrete dengan bahan tambah limbah keramik. Kadar keramik pada campuran papercrete yang digunakan adalah 0%, 20%, 20% dan 30% dari jumlah pasir yang digunakan. Kesimpulan yang dapat diperoleh dari hasil pengujian adalah bahan tambah limbah keramik dapat meningkatkan kuat tekan papercrete. Nilai kuat tekan optimum papercrete tanpa bahan tambah limbah keramik dan papercrete dengan bahan tambah limbah keramik berada pada angka 26,0 MPa - 26,3 MPa.
Análisis integral del desempeño de fotocatalizadores en la producción de hidrógeno
Authors: Torres-Guerra Leticia Miriam 
Published: February 2020

Se presenta una revisión y análisis integral de resultados de NaTaO3 (perovskita) y la solución sólida Na2ZrxTi6-xO13 (x = 0,1) de túneles rectangulares, en forma de polvos y películas, con alto desempeño en la producción foto y electrocatalítica de H2. La eficiencia de estos procesos fue mejorada mediante: a) el estudio del efecto del método de síntesis en las propiedades y su desempeño en estos procesos, b) la construcción de microestructuras facetadas en películas delgadas, y c) la formación de heteroestructuras mediante el depósito de cocatalizadores metálicos. Se obtuvieron películas delgadas del NaTaO3 con estructura tipo perovskita, altamente cristalinas por LCVD sobre sustratos de acero inoxidable para su aplicación en la reacción fotocatalítica de conversión de agua. Se logró el depósito de películas delgadas de la fase ortorrómbica NaTaO3, mediante la técnica de LCVD, con microestructura altamente facetada tipo piramidal; se observó, además, la presencia de nanoescalones. La eficiencia de las películas de LCVD-NaTaO3 fue 13 veces superior a la de los polvos. Se prepararon exitosamente nanobastones 1D, de las fases Na2ZrxTi6-xO13 (x = 0,1) con estructura de túneles rectangulares, mediante el método de solvocombustión.
Pelatihan Deteksi Tumbuh Kembang Anak Pada Kader Posyandu Ponowaren Gamping Sleman
Authors: Wijhati Ellyda Rizki , Suharni Suharni , Susilawati Budi 
Published: February 2020

Masa balita merupakah periode emas pertumbuhan dan perkembangan yang sangat penting dan menentukan kualitas hidup anak mendatang. Deteksi pertumbuhan dan perkembangan pada masa balita sangatlah penting dilakukan untuk memantau apakah terjadi penyimpangan pada proses tumbuh kembang anak, Deteksi tumbuh kembang Balita (DTKB) yang dilakukanlebih awal dapat menemukan penyimpangan lebih dini,sehingga intervensi yang diberikan akan jauh lebih efektif dan efisien. Pelaksanaan Posyandu Kuncup Mekar di Ponowaren Sleman lebih banyak melakukan pemantauan pertumbuhan, sedangkan pemantauan perkembangan hanya dilakukan jika ada kunjungan dari Puskesmas, karena terbatasnya kader yang pernah mengikuti pelatihan DTKB. Tujuan Pelatihan DTKB ini adalah meningkatkan kemampuan kader untuk mampu melakukan DTKB dengan benar. Metode Pelatihan yang dilakukan meliputi uji pre dan post tes pelatihan, penyuluhan DTKB, Praktik DTKB meliputi pengukuran antropometri, pengisian buku KIA pada lembar Kartu Menuju Sehat (KMS), table z-score, Lingkar Kepala, interpretasi hasil penilaian DTKB dan penyuluhan pemanfaatan buku KIA sebagai media pendidikan kesehatan. Hasil pengabdian ada kenaikan tingkat pengetahuan tentang tumbuh kembang anak dibuktikan dengan kenaikan skor nilai pre- post test sebanyak 10-30 point, 14 kader telah mengikuti pelatihan DTKB dan telah mampu mempraktikkan DTKB dengan benar, buku KIA tidak hanya digunakan untuk mencatat hasil pengukuran pertumbuhan namun juga mencatat hasil deteksi perkembangan dan digunakan sebagai media pendidikan kesehatan oleh kader. Kata Kunci: Balita, Pertumbuhan, Perkembangan, Kader