bluuebunny/crossref_metadata_2025_split huggingface dataset:
BER Performance Investigation of WPM with Unknown CSI Using Time-Domain MMSE Equalization
Authors: Buddhacharya Sarbagya , Saengudomlert Poompat , Sterckx Karel 
Published: March 2020

Wavelet Packet Modulation (WPM) is an emerging Multi-Carrier Modulation (MCM) technique regarded as a potential alternative to widely used Orthogonal Frequency Division multiplexing (OFDM). OFDM uses Cyclic Prex (CP) and can rely on one-tap equalization. Since WPM has overlapping symbols in the time domain, equalization cannot depend on the use of CP. This paper considers time-domain Minimum Mean-Square Error (MMSE) equalization for WPM with unknown Channel State Information (CSI), where equalizer filter coefficients are computed using known training sequences. The infuence of the transmission overhead due to training sequences on the Bit Error Rate (BER) performance is investigated considering quasistatic time-varying Rayleigh fading channels. Numerical results from computer simulations show that, with moderate overhead due to training sequences, BER performances are comparable with the case of known CSI. Furthermore, WPM is compared to OFDM with one-tap equalization, and is shown to provide better BER performances as compared to OFDM. Finally, this paper demonstrates improvement in Peak-to-Average Power Ratio (PAPR) of the transmitted signal using subcarrier combining for WPM in heterogeneous communication environments, where low-rate and high-rate devices share the same transmission resources.
INTERESSE CONTRATUAL POSITIVO E NEGATIVO: REFLEXÕES SOBRE O INADIMPLEMENTO DO CONTRATO E INDENIZAÇÃO DO INTERESSE CONTRATUAL POSITIVO.
Authors: De Mello Guerra Alexandre Dartanhan 
Published: March 2020

O estudo que desenvolverei parte de alguns aspectos levantados em trabalho monográfico de autoria do Prof. Dr. Paulo Jorge Scartezzini Guimarães, que juntos tivemos ocasião de publicar. Algumas premissas serão invocadas para contextualizar o leitor. Sobre elas, desenvolverei especificamente o problema da indenizabilidade do interesse contratual positivo no Direito brasileiro, em se tratando de situação de inadimplemento culposo do contrato. De início, farei breve contextualização do tema na Ciência do Direito. Após, analisarei o modelo que os outros ordenamentos jurídicos acolhem. Na sequência, seguirá a tônica desse ensaio: uma proposta de indenização de interesse contratual positivo no inadimplemento culposo do contrato. A partir da orientação da jurisprudência da Corte de Justiça de São Paulo, analisarei a possibilidade de indenização do interesse contratual positivo, na tentativa de delinear os contornos da aplicação concreta do instituto.
Guía de Procedimientos Operacionales y Recomendaciones en la Implementación de Secuenciación de Nueva Generación para Diagnóstico Clínico
Authors: Mendez-Rios Jorge David 
Published: March 2020

<p class="TableText">[Standard Operational Procedures and Recommendations on Next Generation Sequencing for Clinical Diagnostics]</p><p class="TableText">Resumen</p><p class="TableText">La tecnología diagnóstica conocida como NGS por sus siglas en inglés, o Secuenciación de nueva generación, es relativamente nueva, y se está implementando en algunos hospitales de Panamá. Esta tecnología a demostrado ser una herramienta muy eficiente para la detección de alteraciones genómicas o exómicas, tanto para la clínica como para la investigación. Dada la complejidad de esta prueba, requiere una infraestructura y un número significativo de recursos humanos para poder implementar esta prueba. El propósito de este documento es establecer un marco de referencia para los procedimientos administrativos en cuanto a la realización de las pruebas de secuenciación por metodología NGS. A demás, servirá de punto de inicio para el establecimiento de programas internos de control de calidad y evaluación de calidad que la metodología requiere en nuestro país.</p><p> </p><p><strong>Summary</strong></p><p>The technology known as Next-Generation sequencing is relatively new, and it is being implemented in a few Panamenian hospitals. It has demonstrated to be a very efficient tool to identify genomic and exomic variants in a clinical setting as for research. Because of its complexity, it requires an important infrastructure and a significant number of trained health-care professionals to carry out this test. The purpose of this document is to establish the first work frame for the administrative aspects for NGS diagnosis. Moreover, it will serve as a starting point to establish quality control procedures that the technology requires.</p>*
Türkiye ve Yeni Zelanda Fen Bilimleri Dersi Öğretim Programlarında Bilimin Doğası Kazanımlarının Benzerlikler Yönünden İncelenmesi
Authors: KIVANÇ Zeliha , AYDIN Abdullah 
Published: March 2020

Bu çalışmada, Türkiye ve Yeni Zelanda Fen Bilimleri Dersi Öğretim Programlarında yer alan Bilimin Doğasına yönelik kazanımların benzerlikler yönünden incelenmesi amaçlanmıştır. Bu araştırmada, karşılaştırmalı eğitim alanında kullanılan analitik yaklaşımdan faydalanılmıştır. Araştırma modeli olarak genel tarama modeli kullanılmıştır. Veri kaynağı olarak Yeni Zelanda’nın 2007 Fen Bilimleri Dersi Öğretim Programı ile Türkiye’nin 2017 Fen Bilimleri Dersi Öğretim Programından yararlanılmıştır. Veri analizinde içerik analizi tekniğinden yararlanılmıştır. Analizler sonucunda adı geçen programlardaki kazanımların ifade, ima, vurgu yönünden benzer (%81.54) oldukları tespit edilmiştir. Kazanımların benzerliği bir ilin Milli Eğitim Bakanlığına bağlı Ortaokullarda görevli 15 fen bilgisi öğretmeninin ortak görüşleri ile belirlenmiştir. Benzerlik uyum oranları her bir kazanım için güvenirlik katsayısı hesaplama formülü kullanılarak hesaplanmıştır. Hesaplamalar sonucunda %70 ve üzerinde puan alan kazanımlar “benzerdir” olarak değerlendirilmiştir. Çalışma sonucunda 18 kazanımın ima yönünden, 3 kazanımın ifade yönünden, 1 kazanımın ise vurgu yönünden benzer olduğu belirlenmiştir.
Exoplanets in the Antarctic Sky. IV. Dual-band Photometry of Variables Found by the CSTAR-II Commissioning Survey at the North Sky
Authors: Zhu 朱嘉 Jiapeng 鹏 , Zhang 张 Hui 辉 , Liang En-Si , Yu Zhouyi , Yang Ming , Zhou Ji-lin , Cui Xiangqun , Du Fujia , Gong Xuefei , Gu Bozhong , Hu Lei , Jiang Peng , Liu Huigen , Li Xiaoyan , Li Zhengyang , Mould Jeremy , Sun Tianrui , Suntzeff Nicholas B. , Tao Charling , Tian Qiguo , Uddin Syed A. , Wang Lifan , Wang Songhu , Wang Xiaofeng , Wei Peng , Wright Duncan , Wittenmyer Robert A. , Xu Lingzhe , Yang Shihai , Yuan Xiangyan , Zhou Hongyan , Zhu Zhenxi , Lu Hongke 
Published: March 2020

Abstract
From the experiences learned in three decades of exoplanet search, wide-field transit surveys have proven to be one of the most effective ways to detect exoplanets. Wide field of view, however, suffers from high false-positive rates caused by blended eclipsing binaries. The chromaticity in eclipse depth is an effective feature to distinguish low-depth eclipsing binaries from transiting exoplanets, making multiple-band photometry follow-up advantageous before a target is passed onto more expensive spectroscopic follow-up. Moreover, a multiple-band photometric survey is itself a powerful method to find and vet planetary candidates and narrow down the candidate list of high-priority targets. In this work, we report the first results of a dual-band (Sloan-g and -i) wide-field photometry survey—the Chinese Small Telescope ARray II (CSTAR-II), an updated version of the original CSTAR. As a key component of the Chinese Exoplanet Searching Program from Antarctica, CSTAR-II has been tested thoroughly at a remote arctic site near Mohe during the winter of 2014. In total, 13,531 light curves with the best overall photometric precision of ∼3 mmag were extracted from 7721 stars in the Sloan-g and -i bands. Using a robust method, we have detected 63 variables, of which 48 are newly discovered. The dual-band photometric results as well as the stellar properties of the detected sources are provided in this work.
The Birth of a Massive First-star Binary
Authors: Sugimura Kazuyuki , Matsumoto Tomoaki , Hosokawa Takashi , Hirano Shingo , Omukai Kazuyuki 
Published: March 2020

Abstract
We study the formation of massive Population III binary stars using a newly developed radiation hydrodynamics code with the adaptive mesh refinement and adaptive ray-tracing methods. We follow the evolution of a typical primordial star-forming cloud obtained from a cosmological hydrodynamics simulation. Several protostars form as a result of disk fragmentation and grow in mass by the gas accretion, which is finally quenched by the radiation feedback from the protostars. Our code enables us, for the first time, to consider the feedback by both the ionizing and dissociating radiation from the multiple protostars, which is essential for self-consistently determining their final masses. At the final step of the simulation, we observe a very wide (≳104 au) binary stellar system consisting of 60 and 70 M
⊙ stars. One of the member stars also has two smaller mass (10 M
⊙) companion stars orbiting at 200 and 800 au, making up a mini-triplet system. Our results suggest that massive binary or multiple systems are common among Population III stars.
The Critical Role of Collisionless Plasma Energization on the Structure of Relativistic Magnetic Reconnection
Authors: Liu Yi-Hsin , Lin Shan-Chang , Hesse Michael , Guo Fan , Li Xiaocan , Zhang Haocheng , Peery Sarah 
Published: March 2020

Abstract
During magnetically dominated relativistic reconnection, inflowing plasma depletes the initial relativistic pressure at the x-line and collisionless plasma heating inside the diffusion region is insufficient to overcome this pressure loss. The resulting significant pressure drop causes a collapse at the x-line, essentially a localization mechanism of the diffusion region necessary for fast reconnection. The extension of this low-pressure region (into the outflow) further explains the bursty nature of antiparallel reconnection because a once opened outflow exhaust can also collapse, which repeatedly triggers secondary tearing islands. However, a stable single x-line reconnection can be achieved when an external guide field exists, since the reconnecting magnetic field component rotates out of the reconnection plane at outflows, providing additional magnetic pressure to keep the exhaust open.
Sur le statut et le fonctionnement de ce clitique
Authors: Theissen Anne 
Published: March 2020

Le présent article est consacré au pronom clitique ce dans les emplois du type C’est beau . | C’est un écrivain . | C’est le maire du village . Notre parcours se fera en deux étapes. Dans la première, nous essaierons d’expliquer, à partir de ses traits formels, dont le genre et le nombre, le sens de ‹non nommé› avec lequel on le définit habituellement. Dans la seconde, son fonctionnement nous conduira à élargir cette définition et à mettre en évidence un fait nouveau. Nous montrerons que ce ne renvoie pas seulement à un référent qui n’a pas – ou qui est appréhendé comme n’ayant pas – de nom catégoriel mais qu’il s’applique également aux cas de non-identification d’individu.
Le pronom ce dans les phrases attributives
Authors: Van Peteghem Marleen 
Published: March 2020

L’objet de cet article est l’emploi du pronom ce comme sujet des phrases attributives à attribut nominal pluriel en français. Il examine notamment l’hypothèse de H. Diessel (1997 : 199) selon laquelle ce serait un type de pronom spécifique aux attributives. La comparaison de ‹{ ce sont | c’est } + SN pluriel› avec ses équivalents en anglais et en néerlandais montre que ce est apte à se combiner avec des attributs pluriels non grâce à son caractère démonstratif mais grâce à son caractère sous-spécifié. En effet, dans ces deux langues, tant le pronom personnel neutre que le démonstratif neutre sont compatibles avec un attribut pluriel. L’anglais et le néerlandais diffèrent toutefois quant à l’accord du verbe, l’anglais adoptant un accord morpho-syntaxique au singulier alors que le néerlandais a un accord indexical, sémantique, au pluriel. Le français, quant à lui, dispose des deux types d’accord.
"Wolfenstein II" and MAGA as fandom
Authors: Miller Lucy 
Published: March 2020

The current political discourse in the United States is generally understood through the framework of partisanship, but this framework alone is insufficient to encompass all forms of political engagement. An analysis of the discourse around the Bethesda Softworks video game Wolfenstein II: The New Colossus (2017) reveals that the outraged discourse around the references to the current political climate in America by right-wing groups is best understood through a framework of fandom. From this perspective, the discourse around the game is understood as an expression of fandom for President Donald Trump as an individual rather than of a persistent political identity or ideology. As fans, Trump supporters are guided in the political engagement by Trump's pledge to make America great again (MAGA).
Mobilizing minions: Fan activism efficacy of Misha Collins fans in "Supernatural" fandom
Authors: Xanthoudakis Alex 
Published: March 2020

In 2009, Supernatural (CW, 2005–) actor Misha Collins tweeted to his followers in an effort to raise government funds for nonprofit initiatives, resulting in the fan-made website Minion Stimulus whose creator Collins later approached about growing the site into a private charity, Random Acts. The circumstances of Random Acts' inception paved the way for Collins's current philanthropic strategy, which operationalizes fan activism for social good. Collins's approach to fan mobilization takes place on social media, which he has used to effectively operationalize the potential of fan activism.
Stressors and Anxiety in Patients Undergoing Coronary Artery Bypass Surgery
Authors: Gallagher Robyn , McKinley Sharon 
Published: March 2020

Background Patients undergoing coronary artery bypass surgery who have increased anxiety levels have poorer outcomes than patients with lower levels, yet few studies have identified the concerns associated with this anxiety.
Objective To describe the concerns of patients undergoing coronary artery bypass surgery and to identify concerns that were associated with higher levels of anxiety.
Method Patients (n = 172) were interviewed to determine their concerns and anxiety levels before surgery, before discharge, and 10 days after discharge. Multiple regression was used to determine the predictors of anxiety.
Results Although individual concerns changed over time, anxiety levels did not change from before to after surgery, remaining low to moderate. Being female and having more concerns about waiting for the surgery, being in pain/discomfort, and resuming lifestyle were predictors of increased anxiety before surgery. Predictors of increased anxiety while hospitalized after the surgery included taking anxiolytic or antidepressant medications, higher anxiety levels before surgery, concerns about personal things being inaccessible, and difficulty sleeping. Patients with higher anxiety levels after discharge were older, more anxious before surgery, and had concerns about being in pain/discomfort.
Conclusion Patients waiting for coronary artery bypass surgery should be routinely assessed for anxiety before the procedure, and interventions to prevent or reduce anxiety should be provided. Interventions must be multifactorial, including information and support for pain management and realistic information about surgery schedules and resuming lifestyle after the surgery. Women and older patients may need to be targeted for intervention.
Utility of Observer-Rated and Self-Report Instruments for Detecting Major Depression in Women After Cardiac Surgery: A Pilot Study
Authors: Doering Lynn V. , Cross Rebecca , Magsarili Marise C. , Howitt Loretta Y. , Cowan Marie J. 
Published: March 2020

Background Major depression is common after coronary artery bypass graft surgery and is associated with increased mortality and morbidity. Clinicians have few practical options for detecting depression, especially in women, who are at higher risk for depression than men.
Objectives To evaluate the clinical utility of common self-report and observer-rated instruments for detection of major depression in women after coronary artery bypass graft surgery.
Methods In 66 women being discharged after coronary artery bypass graft surgery, 4 instruments were completed: the Hamilton Depression Rating Scale, Beck Depression Inventory, Beck Depression Inventory Short Form, and Beck Depression Inventory for Primary Care. For each instrument, receiver-operating-characteristic curves were analyzed, and positive and negative predictive values were calculated for cutoff points determined from the curves.
Results At hospital discharge, all 4 instruments yielded highly accurate curves. Compared with cutoffs suggested for patients without medical illness and hospitalized nonsurgical patients, identified cutoffs for screening were higher when all types of depressive symptoms (cognitive, affective, behavioral, somatic) were measured with the Hamilton Depression Rating Scale and the Beck Depression Inventory but lower when only cognitive and/or affective symptoms were measured with the 2 subscales of the Beck Depression Inventory.
Conclusions The Hamilton Depression Rating Scale and both subscales of the Beck Depression Inventory may be useful for detecting major depression in women shortly after coronary artery bypass graft surgery. Further study is warranted to confirm cutoffs in these patients.
Comparison of Point-of-Care and Laboratory Glucose Analysis in Critically Ill Patients
Authors: Lacara Teresita , Domagtoy Caroline , Lickliter Donna , Quattrocchi Kathy , Snipes Lydia , Kuszaj Joánne , Prasnikar MaryClare 
Published: March 2020

Background Blood for point-of-care analysis of glucose levels is often obtained from different sources (fingerstick, arterial or central venous catheter).
Objectives To examine agreement between point-of-care and laboratory glucose values and to determine effects of hematocrit, serum carbon dioxide, and mean arterial pressure on the accuracy of point-of-care values.
Methods Point-of-care values were compared with laboratory values. In 49 critically ill patients, blood was obtained first from a catheter for laboratory testing and then from the catheter and via fingerstick for point-of-care testing. Bias, precision, and root-mean-square differences were calculated to quantify differences in values between the 2 methods. A t test was used to determine differences in values between each point-of-care blood source and the laboratory value. Multiple regression analysis was used to determine if serum level of carbon dioxide, hematocrit, and/or mean arterial pressure significantly contributed to the difference in bias and precision for the point-of-care blood sources.
Results Mean laboratory glucose level was 135 (SEM 5.3, range 58–265) mg/dL. In point-of-care testing, bias ± precision and root-mean-square differences were 2.1 ± 12.3 and 12.35, respectively, for fingerstick blood and 0.6 ± 10.6 and 10.46 for catheter blood. Values for point-of-care and laboratory tests did not differ significantly. For catheter samples, hematocrit and serum carbon dioxide contributed significantly to difference scores between point-of-care and laboratory values (P &lt; .001).
Conclusions Glucose values for point-of-care samples did not differ significantly from laboratory values. For catheter samples, hematocrit and serum carbon dioxide levels accounted for the difference between point-of-care and laboratory glucose values.
Survey of Cuff Management Practices in Intensive Care Units in Australia and New Zealand
Authors: Rose Louise , Redl Leanne 
Published: March 2020

Background Cuff management varies widely in Europe and North America. Little is known about current practice in Australia and New Zealand.Objective To characterize important aspects of cuff management in intensive care units in Australia and New Zealand to compare with international reports.Methods A questionnaire was sent to all nurse managers of adult intensive care units in Australia and New Zealand.Results Survey response was 53% (92/175). After intubation, most units (50/92, 54%) used both minimal occlusive volume technique and cuff pressure measurement; 5 (5.5%) used these methods along with pilot balloon palpation. Twenty units (22%) used cuff pressure measurement exclusively and 16 units (17.5%) used the minimal occlusive volume technique exclusively. Only 1 unit (1%) used the minimal leak technique after intubation. For ongoing management, cuff pressure measurement was the preferred method, used exclusively in 42 units (46%), with the minimal occlusive volume technique used in 40 units (43%; sole method in 6 units [7%]) and palpation in 4 units (4%). In most units (65/92, 71%), cuffs were monitored once per nursing shift. In units using the minimal occlusive volume technique, oropharyngeal suctioning (74%) and semirecumbent positioning (58%) were routinely incorporated; sigh breaths (6%), discontinuation of enteral feeding (10%), and nasogastric tube aspiration (26%) were uncommon. Cuff management protocols (37%) and subglottic suctioning (12%) were used infrequently.Conclusions Cuff pressure measurement was the preferred method, used exclusively or in combination with other methods. The minimal occlusive volume technique was used more often after intubation than for ongoing management.
Solutions to an alien species invasion from aquarium aquaculture: Isolation and characterization of acid soluble collagen from sailfin catfish, <em>Pterygoplichthys disjuctivus</em> (Weber, 1991) in Sri Lanka
Authors: Herath H.M.G.K. , Kalutharage Nishantha K. , Cumaranatunga P. Ruchira T . 
Published: March 2020

Sailfin catfish (Pterygoplichthys disjunctivus) has become an invasive species within inland water bodies in Sri Lanka but there are no controlling methods presently. Present study investigates the suitability potential of acid soluble collagen/ gelatin from P. disjuctivus, to establish commercial demands for this invasive fish. Samples were collected from Udawalawa Reservoir, Sri Lanka and categorized into two lengths groups according to the length; L1 (30.6 ± 2 cm) and L2 (25.1 ± 3 cm). Acid soluble collagen was extracted from skin, flesh, bone and fin of P. disjuctivus using established acid soluble methods. The average yield of collagen (w/w%) on wet weight basis from skin, flesh, bone and fin for L1 were 26.20 ± 3.32%, 10.66 ± 2.01%, 3.40 ± 0.73%, 3.19 ± 1.79% and for L2 were 22.96 ± 2.16%, 9.19 ± 0.72%, 3.01 ± 0.63%, 2.84 ± 1.06%, respectively. There were significant differences in average yield of collagen among different tissues of fish within the same length group but there were not among the two length groups (p ≥0.05). The moisture content in the collagen extracted from, skin, flesh, bone and fin of L1 were 78.30 ± 0.1% , 84.0 ± 0.1%, 75.18 ± 1.02%, and 75.45 ± 0.95% and for L2 were 80.07 ± 0.15%, 83.86 ± 1.05%, 78.19 ± 0.95%, 77.12 ± 1.06% respectively; Similarly, protein contents were 48.14 ± 1.05%, 54.43 ± 2.99%, 48.14 ± 0.95%, and 48.56 ± 0.90% for L2 49.29 ± 1.03, 49.13 ± 0.95%, 47.26 ± 0.95% and 47.73 ± 0.95%; lipid content of skin, flesh, bone and fin of L1 were 0.9 ± 0.1%, 0.97 ± 0.06%, 1.08±0.15%, and 0.89±0.09% and for L2 were 0.96 ± 0.03%, and 0.99 ± 0.03%, and 1.20 ± 0.11%, and 1.03 ± 0.06% respectively; and ash content of skin, flesh, bone and fin of L1 were 25.76 ± 0.95%, 22.16±1.11%, 32.16±0.91%, and 29.18±0.95% and for L2 were 34.10 ± 0.95, 22.29 ± 0.95%, 28.166 ± 0.9 and 41.17 ± 1.00% respectively. In collagen extracted, % protein, %lipid and %ash were significantly different among flesh, skin, bone and fin within the same length group (p ≤ 0.05) but not among length groups (p ≥0.05). UV spectrum and FTIR spectrum of extracted four types of collagen indicated high percentage of collagen. Flesh and skin of P. disjuctivus can be recommended as a good source of collagen for potential industrial applications.