bluuebunny/crossref_metadata_2025_split huggingface dataset:
Liver Transplantation in the Treatment of Unresectable Hepatocellular Carcinoma in the Absence of Liver Cirrhosis
Authors: Olisov O. D. , Novruzbekov M. S. , Galankina I. E. , Zimina L. N. , Gulyaev V. A. , Donova L. V. , Khubutiya M. Sh. 
Published: September 2018

Aim. The aim of the study is to determine the effectiveness of liver transplantation (LT) in the treatment of unresectable hepatocellular carcinoma (HCC) occurred in normal liver.Material and methods.  6 patients with unresectable HCC underwent orthotopic liver transplantation (OLT). The long-term OLT results were compared with survival results of liver resection in patients with late stage HCC.Results.  Hepatocellular carcinoma is one of the most common types of cancer, which occurs mainly in patients with liver cirrhosis and chronic viral hepatitis. Only about 10 % of HCC develops in non-cirrhotic liver among young and somatically healthy patients. 1-, 3-, 5-year recurrence-free and overall survival in LT group was significantly better than in the control group.Conclusion.  LT is indicated for patients with unresectable HCC in non-cirrhotic liver and its extrahepatic localization. A large tumor size and macrovascular invasion should not be a contraindication for LT in such patients.
Adaptive Learning: A Stabilizing Influence Across Disciplines and Universities
Authors: Dziuban Charles , Howlin Colm , Moskal Patsy , Johnson Connie , Parker Liza , Campbell Maria 
Published: September 2018

This study represents an adaptive learning partnership among The University of Central Florida, Colorado Technical University, and the platform provider Realizeit. A thirteen-variable learning domain for students forms the basis of a component invariance study. The results show that four dimensions: knowledge acquisition, engagement activities, communication and growth remain constant in nursing and mathematics courses across the two universities, indicating that the adaptive modality stabilizes learning organization in multiple disciplines. The authors contend that similar collaborative partnerships among universities and vendors is an important next step in the research process.
Remembrance - Ben Arbaugh
Authors: Shea Peter 
Published: September 2018

On June 16th, 2018 family, friends, and the world of online learning scholarship lost Dr. John Benard Arbaugh, known to everyone as “Ben”. Ben was a pioneer in online learning with more than 80 publications including 17 best article or best paper awards. Ben was also a member of the OLJ Editorial Board. Many of us knew Ben for his scholarship on the Community of Inquiry model and for his work as an evaluator on national projects such as the Predictive Analytics Framework (PAR). Ben’s passing is felt by the many colleagues and coauthors with whom he worked around the world. He was a true mentor, teacher, scholar and friend. We will miss him.
Editorial
Authors: Pacífico Juracy Machado , Bueno José Lucas Pedreira , Barros Josemir Almeida , Francisco Junior Wilmo Ernesto 
Published: September 2018

Este Editorial apresenta o número 11, Volume 5 (2018), da Revista EDUCA - Revista Multidisciplinar em Educação. O número compõe-se de artigos de pesquisadores e pesquisadoras brasileiros e estrangeiros. A Revista EDUCA é um periódico científico vinculado ao Grupo de Pesquisa Multidisciplinar em Educação e Infância – Grupo EDUCA, que apoia o Programa de Pós-Graduação em Educação Escolar, Mestrado Profissional, da Universidade Federal de Rondônia (UNIR).
Interaksi Virtual Remaja Di Media Sosial
Authors: Azhar Indrianti 
Published: September 2018

The study is titled " Virtual Interaction of Teen on Social Media". The purpose of this study was to find out the meaning of Facebook social media for adolescents as a medium of communication in the virtual world, how teenagers express themselves through social media and show the symbol of virtual interacting contemporary teen-age.Â Â The theory in this study is the symbolic interaction with the methodology of virtual ethnography. Techniques of determining informants using snowball technique that is through the recommendation of facebook users among adolescents aged 15-18 Years in Cilegon City.Â Data collection techniques are done by direct observation, in-depth interviews, and documentation. While virtual ethnographic observations are done online and offline. Online observations of researchers interact with resource persons in social media, offline researchers face to face with sources.Â Triangulation of sources is used in the technique of data validity. The results of this study's first teenage interpreting Facebook as an entertainment, interaction and media interaction in the virtual world.Â Second, teenagers can express themselves through the status update activity with slang, upload photos with "contemporary" pose and intensity of interaction by chatting to forget the time, and the dependence of updates in social media facebook.
Efektifitas Program Pembinaan Kedisiplinan dalam proses Belajar Mengajar terhadap Etos Kerja Mandiri Guru SMKN 4 Pinrang Kecamatan Patampanua Kabupaten Pinrang Sulawesi Selatan
Authors: Nurwati Nurwati 
Published: September 2018

Abstrak
Sesuatu hal positif tentunya akan berbuah positif pula, hal postif akan terwujud jika kita semua disiplin. Tidak salah jika ada yang mengatakan jika lau kedisiplinan adalah kunci kesuksesan. Jika yang kitahadapi adalah peserta didik maka untuk mencapai kesuksesan dalam mencerdaskan peserta didik kita maka kita perlu menanamkan disiplin tinggi dan etos kerja yang baik kepada para dewan guru agar bias membawa hasil yang positif pada dunia pendidikan yang seperti sekarang ini. Penelitian berdasarkan permasalahan, (a) Apakah program pembinaan kedisiplinan dan etos kerja guru berpengaruh terhadap hasil belajar siswa SMKN 4 Pinrang Kecamatan Patampanua Kabupaten Pinrang ( b) Bagaimanakah pengaruh Pembinaan kedisiplinan guru terhadap motivasi dan etos kerja guru? Tujuan penelitian tindakan ini adalah: (a) Untuk mengungkap pengaruh Pembinaan Kedisiplinan guru terhadap hasil belajar siswa. (b) Untuk mengungkap Pembinaan kedisiplinan Guru terhadap motivasi Belajar pada siswa SMKN 4 Pinrang Kec. Patampanua Kab. Pinrang. Penelitian ini menggunakan penelitian tindakan (action research) sebanyak tiga putaran. Setiap putaran terdiri dari empat tahap yaitu: rancangan, kegiatan dan pengamatan, refleksi, danrefisi. Sasaran penelitian ini adalah Guru SMKN 4 Pinrang Kecamatan Patampanua Kabupaten Pinrang. Data yang diperoleh berupa hasil tesformatif, lembar observasi kegiatan belajarmengajar. Dari hasil analis didapatkan bahwa prestasi guru dalam kedisiplinan mengalami peningkatan dari siklus I sampai siklus III yaitu, siklus I (66,67%), siklus II (77,78%), siklus III (88,89%). Kesimpulan dari penelitian ini adalah metode Pembinaan Kedisiplinan dapat berpengaruh positif terhadap motivasi dan etos kerja Guru SMKN 4 Kecamatan Patampanua Kabupaten Pinrang, serta metode ini dapat digunakan sebagai salah satu alternatif untuk meningkatkan etos kerja guru.
Infectious diseases during pregnancy in Brazil: seroprevalence and risk factors
Authors: Costa Galileu Barbosa , De Oliveira Mário Cézar , Gadelha Sandra Rocha , Albuquerque George Rego , Teixeira Marcel , Raiol Monica Regina da Silva , Sousa Sandra Mara Bispo , Marin Lauro Juliano 
Published: September 2018

Introduction: Vertically transmitted infections are caused by a diversity of pathogenic microorganisms. Pregnant women are routinely screened to evaluate the risks and reduce the burden of disorders in their unborn children. We assessed the prevalence and possible risk factors for Cytomegalovirus (CMV), Rubella, Human T lymphotropic virus (HTLV), and Toxoplasma gondii in pregnant women from the South region of Bahia State, Brazil.
Methodology: Serum samples were obtained from 726 pregnant women aged between 13 and 44 years, with a median age of 24 years. ELISA assays were used to detect CMV, Rubella, HTLV and T. gondii IgG and IgM antibodies.
Results: The prevalence rates of IgG antibodies found were 95.2% for CMV, 97.0% for Rubella, and 72.3% for T. gondii. Furthermore, the prevalence of HTLV-1/2 was 1.2%. IgM antibodies were reactive only for CMV (0.8%) and T. gondii (3.7%). Variables independently associated with the detection of anti-T. gondii IgG antibodies were white self-reported race/ethnicity (Odds Ratio [OR] 2.26, 95% CI 1.26–4.06, P = 0.006), wage income (OR 0.55, 95% CI 0.35–0.88, P = 0.013), and history of previous pregnancy (OR 1.60, 95% CI 1.02–2.50, P = 0.038).
Conclusions: This study highlights the importance of monitoring for infectious diseases during pregnancy and initiation of early interventions to reduce the burden of fetal losses and other important infant sequelae attributable to congenital infections.
Mantoux test revisited: Variability in reading tuberculin test in pediatric population
Authors: Goel Dimple , Mantan Mukta , Sethi Gulshan R 
Published: September 2018

Introduction: Mantoux test aids in the diagnosis of tuberculosis (TB), however its application and interpretation are dependent on multiple factors.
Methodology: A prospective study enrolling 400 children (aged 2-12) suspected to have tuberculosis. All participants received Mantoux test with two different strengths (1 TU and 5 TU) of Purified Protein Derivative (PPD) on different forearms. The test was read by two readers after
48 ± 2 and 72 ± 2 hours. Primary outcome was difference in the size of induration when read by two readers (interobserver variability). Secondary outcomes were difference in the size of induration at different intervals, with different strengths of PPD and percentage positivity of Mantoux test in TB patients.
Results: Statistically significant difference was seen in the size of induration when read by two different readers, with fair to moderate agreement when read at 48 and 72 hours (1 TU: p = 0.002, k = 0.52 and p = 0.1, k = 0.73 respectively, 5 TU: p = 0.001, k = 0.39 and p = 0.0009, k = 0.33 respectively). Tendency of under-reading occurred when size of induration was close to significant level (10-14 mm). Size of induration was similar when read at 48 or 72 hours (1 TU: p = 0.9, 5 TU: p = 1.0). Mantoux positivity rate in patients with TB was more with 5 TU as compared to 1 TU (61.2% vs. 16.3%).
Conclusions: There is significant interobserver variability with a tendency to under-read around the cutoff point. The use of 5 TU PPD at 48 hours by a trained physician can aid in early and more reliable diagnosis of TB.
Prevalence of zoonotic helminths in Italian house dogs
Authors: La Torre Francesco , Di Cesare Angela , Simonato Giulia , Cassini Rudi , Traversa Donato , Frangipane di Regalbono Antonio 
Published: September 2018

Introduction: Dogs may act as potential sources of zoonotic parasites, e.g. intestinal helminths like Toxocara spp., Ancylostoma spp., Echinococcus spp. In particular circumstances, the environment contaminated by parasitic elements represents a source of infection for people and animals. The present study has evaluated the presence of zoonotic helminths in house dogs from central and north-eastern Italy.
Methodology: Stool samples from 493 dogs were examined by a qualitative copromicroscopic technique and differences in prevalence of zoonotic parasites were statistically examined in relation to canine individual data.
Results: 48/493 (9.7%) were positive for at least one parasite. Helminths recovered were Trichuris vulpis (5.5%), Toxocara canis (4.3%), Ancylostoma spp. (0.6%) and Eucoleus aerophilus (0.4%), while no cestodes were detected. Age and living with other dogs resulted risk factors for T. canis infection.
Conclusions: The health risk associated with the occurrence of parasitic nematodes in privately owned dogs, along with the current anthelmintic treatment plans, are discussed.
Hypoalbuminemia predicts intensive care need among adult inpatients with community acquired pneumonia: a cross sectional study
Authors: Adnan Muhammad , Hashmat Naheed , Latif Muhammad , Ali Zahra , Rahat Tayyaba 
Published: September 2018

Introduction: Various scales helped physicians to decide the site of care of pneumonia patients, but had certain limitations. Literature review suggested that serum albumin and B/A ratio predict the site of care but more evidences were required. Therefore, the study was aimed to evaluate the role of serum albumin and B/A ratio in the prediction of intensive care need among patients with community acquired pneumonia.
Methodology: The cross-sectional analytical study enrolled 134 adult inpatients with pneumonia from Sir Ganga Ram Hospital, Lahore, Pakistan during September 2014 to December 2016. Serum albumin, creatinine and urea levels were estimated; and BUN, B/A ratio and CURB-65 scores were calculated to predict the need of ICU.
Results: Overall mean age was 50 ± 21 years, and 54.5% patients were females. The patients (19.4%) who required treatment in ICU had significantly lower albumin levels (p = 0.001); elevated BUN levels (p = 0.003), B/A ratio (p = 0.001) and CURB-65 score (p = 0.038); and longer hospital stay (p = 0.002). Hypoalbuminemia showed significant association with the requirement of ICU (OR: 7.956; p = 0.001). The optimal cut-off point of serum albumin to predict ICU need was 3.4 g/dL (50% sensitivity; 89% specificity). Low serum albumin was revealed as a good predictor of requiring treatment in ICU (AUC 0.718).
Conclusions: Hypoalbuminemia was a good predictor of requiring ICU treatment. Elevated B/A ratio and BUN levels showed significant association with ICU need. Serum albumin estimation before hospitalization might be used independently or additional with established criteria to decide the site of care.
Biomechanical Analysis of Fixation Devices for Basicervical Femoral Neck Fractures
Authors: Johnson Joseph , Deren Matthew , Chambers Alison , Cassidy Dale , Koruprolu Sarath , Born Christopher 
Published: September 2018

Introduction:
Basicervical femoral neck fractures are challenging fractures in geriatric populations. The goal of this study was to determine whether compression hip screw (CHS) constructs are superior to cephalomedullary constructs for the treatment of basicervical femoral neck fractures.

Methods:
Thirty cadaver femurs were osteotomized and received a CHS with derotation screw, a long cephalomedullary nail (long Gamma nail), or a short cephalomedullary nail (short Gamma nail). All constructs were loaded dynamically in compression until dynamic failure.

Results:
All failed CHS constructs demonstrated superior femoral head cutout. In the long Gamma nail and short Gamma nail groups, constructs failed by nail cutout through the medial wall of the trochanter or rotationally. Normalized fluoroscopic distance was found to increase markedly with an increasing cycle count when considering all treatment groups.

Conclusions:
Given our results and those of previous studies, we could not determine superiority of one implant and recommend that surgeons select fixation constructs based on the individual patient's anatomy and the surgeon's comfort with the implant.
Multivalent Cations Substitution Accelerate Li‐Ion Diffusion in Na4Cr2Nb98O250 Defect Phase for Wide Temperature Energy Storage
Authors: Yu Anyang , Jiang Tian , Jiao Ke , Gou Wenshan , Wang Xinxin , Zhao Xiaodie , Xu Qingyu , Fan Qi , Sun Yueming , Li Gan 
Published: November 2024

AbstractNiobate materials are regarded as promising anode materials for Lithium‐ion batteries. Inspired by the design of shear‐type ReO3 materials through the multivalent cations substitution defect construction method, nonequivalent Na4M2Nb98O250 (M = Fe, Cr, NFNO, NCNO) anode materials are synthesized. The novel NCNO material exhibits a modified N‐Nb2O5 isostructural defect phase that can optimize 3D Li‐ion transport channels and enhance the electronic conductivity, leading to a superior ionic diffusion coefficient (DLi) and good structural stability. It shows balanced high performance with respect to specific capacity, rate capacity and cyclability. Furthermore, it also demonstrates outstanding wide‐temperature (−10 to 45 °C) lithiation performance, especially at low temperature (−10 °C) of a capacity exceeding 100 mAh g−1 at 5C and minimal capacity decay (0.012% per cycle) after 1000 cycles, indicating the great potential of wide temperature energy storage.
Silver Nanoparticle‐Embedded Zirconium‐Based Metal‐Organic Framework for Photoreduction of Carbon Dioxide to Acetic Acid in Aqueous Medium
Authors: Aparna Ravari Kandy , Muhamed Shamna , Manna Surya Sekhar , Mani Neema Pallikkarathodi , Maria Ivy , Afreen Afreen , Parambil Sneha Raj V. , Etter Martin , Jeppesen Henrik , Rajasree Sreehari Surendran , Maji Tapas Kumar , Adarsh Kumaran Nair Valsala Devi , Biswas Kanishka , Shaijumon Manikoth M , Pathak Biswarup , Mandal Sukhendu 
Published: November 2024

AbstractCatalytic conversion of CO2 into value‐added chemicals is necessary to mitigate the increasing global warming and energy‐related issues. The selective production of C2 or C2+ products by photoreduction of CO2 is a challenging task due to the sluggish kinetics of C─C coupling. Herein, the potential of a silver nanoparticle (Ag NP) incorporated metal‐organic framework (MOF), NU‐1000 is introduced, to harvest light and ease the uphill electron transfer. The growth of silver nanoparticles on thiol‐functionalized NU‐1000 is studied using the atomic pair distribution function (PDF) analysis. The C2 product formed using Ag@NU‐1000‐SH without any sacrificial agents is acetic acid, which is confirmed by 1H‐NMR and HRMS data. The catalyst displays a high acetate output of 293.58 µmolg−1h−1 with a selectivity of 79.4%. The XPS and DFT calculations evidence that the presence of the charge‐polarised states in the as‐synthesized catalyst act as asymmetric centers that favor the C─C coupling reaction. The combined experimental (in situ DRIFT spectroscopic studies) and theoretical calculations reveal that the C─C coupling takes place via the coupling of COOH*intermediates.
Multifunctional Ultrathin Ti3C2Tx MXene@CuCo2O4 /PE Separator for Ultra‐High‐Energy‐Density and Large‐Capacity Lithium‐Sulfur Pouch Cells
Authors: Huang Zimo , Liang Yuhao , Wu Zhenzhen , Kong Yang , Bai Maohui , Li Meng , Hong Bo , Huang Taiyu , Huang Senchuan , Chen Hao , Zhang Shanqing 
Published: November 2024

AbstractThe shuttling of lithium polysulfides (LiPSs), sluggish reaction kinetics, and uncontrolled lithium deposition/stripping remain the main challenges in lithium‐sulfur batteries (LSBs), which are aggravated under practical working conditions, i.e., high sulfur loading and lean electrolyte in large‐capacity pouch cells. This study introduces a Ti3C2Tx MXene@CuCo2O4 (MCC) composite on a polyethylene (PE) separator to construct an ultrathin MXene@CuCo2O4/PE (MCCP) film. The MCCP functional separator can deliver superior LiPSs adsorption/catalysis capabilities via the MCC composite and regulate the Li+ deposition through a conductive Ti3C2Tx MXene framework, enhancing redox kinetics and cycling lifetime. When paired with sulfur/carbon (S/C) cathode and lithium metal anode, the resultant 10 Ah‐level pouch cell with the ultrathin MCCP separator achieves an energy density of 417 Wh kg−1 based on the whole cell and a stable running of 100 cycles under practical operation conditions (cathode loading = 10.0 mg cm−2, negative/positive areal capacity ratio (N/P ratio) = 2, and electrolyte/sulfur weight ratio (E/S ratio) = 2.6 µL mg−1). Furthermore, through a systematic evaluation of the as‐prepared Li‐S pouch cell, the study unveils the operational and failure mechanisms of LSBs under practical conditions. The achievement of ultrahigh energy density in such a large‐capacity lithium‐sulfur pouch cell will accelerate the commercialization of LSBs.
Phosphorylated Covalent Organic Framework Membranes Toward Ultrafast Single Lithium‐Ion Transport
Authors: Pang Xiao , Shi Benbing , Liu Yawei , Li Yunliang , Zhang Yafang , Wang Tiantian , Xu Shuting , Wang Xiaoyao , Liu Ziwen , Xing Na , Liang Xu , Zhu Ziting , Fan Chunyang , Liu Ying , Wu Hong , Jiang Zhongyi 
Published: November 2024

AbstractDeveloping all‐solid‐state electrolytes, the chips for lithium‐metal batteries, with superior electrochemical and mechanical properties awaits the disruptive materials. Herein, ionic covalent organic framework membranes are explored as solid‐state electrolytes for single Li+ conduction. In the membrane, the anion groups act as Li+ transporter, determining Li+ binding capacity and releasing ability, whereas the oxygen‐containing groups act as Li+ co‐transporter, creating relay sites between adjacent Li+ transporters for rapid hopping. The membrane exhibits an unprecedented Li+ conductivity of 1.7 mS cm−1 with a Li+‐transference number close to unity at room temperature. Additionally, the membrane possesses high flexibility, low interfacial resistance, and excellent cycling performance at room temperature. This work paves an unprecedented path for the advancement of next‐generation Li+ conductors in solid‐state electrolytes.
2D/3D Heterostructure Halide Perovskite Thin Films through an Innovative Spray‐Deposition of Bulky Organic Cation‐Containing Ammonium Salts
Authors: Sahani Rishabh , Kumar Neetesh , Perini Carlo A. R. , Rahmani Azina , Muñoz Daniel , LaFollette Diana , Lawton Jack , Datta Kunal , Li Ruipeng , Correa‐Baena Juan‐Pablo , Jurca Titel , Lai Cheng‐Yu , Radu Daniela R. 
Published: November 2024

AbstractHybrid halide perovskite involving low‐dimensional (2D or quasi‐2D) perovskites and their three‐dimensional (3D) counterparts provide long‐term stability in solar photovoltaics (PV) applications. Besides stability, perovskite PV commercialization would scalability in roll‐to‐roll fabrication of large‐area devices. Herein, it is reported on a pneumatic spray‐deposition methodology utilized to fabricate 2D/3D heterostructure perovskite films with tunable morphological and optical properties. Ammonium salts featuring bulky organic cations, such as phenethylammonium iodide (PEAI), 2‐thiophenemethylammonium iodide (TMAI), cyclohexylmethylammonium iodide (CMAI), and n‐dodecylammonium iodide (DDAI) are spray‐deposited on top of 3D‐formamidinium lead triiodide (3D‐FAPbI3) perovskite thin films, to synthesize a series of 2D perovskites, including (PEA)2FAPb2I7, (TMA)2PbI4, (CMA)2FAPb2I7, and (DDA)2FAPb2I7. X‐ray diffraction (XRD) and grazing incidence wide‐angle X‐ray scattering measurements confirm the evolution of 2D perovskite layer with distinct crystal structure and dimensionality (n = 1 and 2). Additionally, field‐emission scanning electron microscopy reveals diverse surface morphologies achievable in the 2D perovskite layers. Hyperspectral photoluminescence mapping further demonstrates that the emission at ≈566–570 nm corresponds exclusively to the 2D perovskite phase with n = 2. This study advances the development of 2D/3D heterostructure perovskites using bulky organic cations and underscores the potential of pneumatic spray‐deposition as a scalable fabrication technique for producing next‐generation optoelectronic devices.
A Near‐Zero Index Metamaterial Lens for Reduced Complexity and High‐Performance Active Electronically Scanned Arrays
Authors: Binion J. Daniel , Mussman Colin A. , Lier Erik , Hand Thomas H. , Werner Douglas H. 
Published: November 2024

AbstractA lens consisting of an anisotropic near‐zero index metamaterial (NZIM) is introduced for improving the far‐field performance of active electronically scanned arrays (AESA). Several simulation studies demonstrate how the NZIM lens (metalens) can be functionalized to transform the embedded element pattern of an array from a typical cosinusoidal shape to a flat‐topped pattern, dramatically reducing the gain at wider angles. This corresponds to reductions in scan loss and suppression of grating lobes in the desired field of view (FOV), especially for arrays with large element spacing (i.e., sparse or thinned arrays). The metalens concept is demonstrated through several simulation studies illustrating the beam shaping capability of NZIM materials. A fabricated metalens demonstrates full suppression of grating lobes and minimal scan loss with a ±10° FOV, which is ideally suited for limited FOV applications such as geosynchronous satellite communications.