bluuebunny/crossref_metadata_2025_split huggingface dataset:
Construction of a 2D Layered Phosphorus‐doped Graphitic Carbon Nitride/BiOBr Heterojunction for Highly Efficient Photocatalytic Disinfection
Authors: Che Shuya , Zhou Xiaoyu , Zhang Lei , Su Dawei , Wang Tianyi , Wang Chengyin 
Published: March 2022

AbstractInfectious diseases caused by bacteria intimidate the health of human beings all over the world. Although many avenues have been tried, various operating conditions limit their actual applications. Photocatalytic nanomaterials are becoming candidates to be competent for water purification. Here, a novel and more efficient S‐scheme has been engineered between two dimensional (2D) layered phosphorus‐doped graphitic carbon nitride (P‐g‐C3N4) and BiOBr via hydrothermal polymerization to inhibit the recombination of charge and broaden light absorption. The as‐prepared P‐g‐C3N4/BiOBr hybrids exhibits significantly improved photocatalytic disinfection contrast to g‐C3N4/BiOBr in visible wavelengths, suggesting phosphorus doping which adjusts the band structure plays a significant role in the S‐scheme system. And the sterilization rate of multidrug‐resistant Acinetobacter baumannii 28 (AB 28) was 99.9999% within 80 min and Staphylococcus aureus (S. aureus) was 99.9%.
Institutional change to support online learners: A case study for student success
Authors: Bartek Carrie , Pellegrino Lauren , White Carol Cutler , Clayton Ashley B. 
Published: March 2022

AbstractThe article presents a case study on institutional change within the context of an online improvement initiative. As part of its quality enhancement plan (QEP) improvement process in support of accreditation reaffirmation, Wake Technical Community College (Raleigh, NC) implemented a multistage change process to engage the college in data‐driven change resulting in the eLearning preparedness initiative (EPIC). EPIC targeted student success in online courses by improving both student and faculty preparedness for online learning and teaching. The article first describes the need for change, provides an overview of the change initiative, then describes the transformational change process and lessons learned. The article closes with guiding questions for community college leaders and online learning change‐agents to consider when planning for and implementing strategies for improving the student experience and supporting online student success.
Potential drug‐drug interaction between tolvaptan and warfarin in a geriatric patient with heart failure
Authors: Nimura Satomi , Kitahara Kanayuki , Ueshima Kazuyo , Mochizuki Yasuhide , Momo Kenji , Shinke Toshiro , Sasaki Tadanori 
Published: April 2022

AbstractTolvaptan is a key drug for patients with heart failure. Here, we present a 92‐year‐old woman, whose PT‐INR/dose increased from 1.74 to 3.30 after warfarin and tolvaptan co‐administration, and resulted in a large cerebral infarction after warfarin dose down. Therefore, the interaction between these two drugs may be clinically significant.
Treatment of sick sinus syndrome in a patient with cardiac lymphoma via chemotherapy without pacemaker implantation: A case report
Authors: Hirakawa Yuri , Tsuda Shigeyasu , Sugimoto Takeshi 
Published: April 2022

AbstractSuccessful treatment of the acute phase of bradycardia in patients with cardiac lymphoma via medical therapy alone has not been reported. This case report describes the successful treatment of sick sinus syndrome in an 84‐year‐old man with cardiac lymphoma via chemotherapy without pacemaker implantation.
Septate gallbladder: A rare congenital anomaly
Authors: Debaibi Mehdi , Sghair Asma , Sridi Azza , Chouchen Adnen 
Published: April 2022

AbstractThe septate gallbladder is a rare congenital malformation. It is considered a risk factor of complications after laparoscopic cholecystectomy. We are reporting an image in surgery of a septate gallbladder. It was discovered at an adult age. We are showing the difficulty of the diagnosis preoperatively on the radiological find.
Performance Evaluation of KBH4 as Energy Carrier for Shipping Applications
Authors: Düll Andrea , Rohlfs Patrick , Deutschmann Olaf , Börnhorst Marion 
Published: March 2022

AbstractNon‐fossil fuels are urgently needed for maritime and inland shipping applications to mitigate the sector's adverse impact on the global climate. This study investigates the performance of potassium borohydride (KBH4) as an alternative, carbon‐free energy carrier on the basis of detailed process simulations of the overall energy storage cycle in Aspen Plus®. After optimizing the individual on‐board and off‐board process steps, the feasibility of installing a KBH4‐based energy supply system on board of an inland‐waterway cargo vessel is evaluated and critical process steps are highlighted along with current research challenges.
Douglas M. Ruthven: In Memoriam of a Great Scholar and a Caring Friend
Authors: Kärger Jörg 
Published: March 2022

AbstractIn September 2021, Professor Douglas Morris Ruthven, one of the pioneers of sorption research, passed away completely unexpectedly. The many research areas he has enriched with his contributions include, in particular, the field of diffusion, i.e., the random movement of guest diffusion in nanoporous materials. When NMR diffusometry was first used to study this phenomenon almost half a century ago, discrepancies of up to several orders of magnitude were revealed compared to the values so far generally accepted. Since then, the study of diffusion in nanoporous materials has been a hot topic in sorption research. The essay reports the great merits Doug Ruthven has earned in his life's work in this field. His activities include the refinement of existing and the development of novel measuring techniques just as their application or revealing the governing processes of mass transfer in a given nanoporous host‐guest system. The essay is, above all, a personal thank you from the author to Professor Ruthven for whom initial discrepancies in research results were not cause for quarrels and arguing but for a lifelong friendship.
Photoinduced Merging with Copper‐ or Nickel‐Catalyzed 1,4‐Cyanoalkylarylation of 1,3‐Enynes to Access Multiple Functionalizatized Allenes in Batch and Continuous Flow
Authors: Sun Qi , Zhang Xin‐Peng , Duan Xiu , Qin Long‐Zhou , Yuan Xin , Wu Meng‐Yu , Liu Jie , Zhu Shan‐Shan , Qiu Jiang‐Kai , Guo Kai 
Published: March 2022

Comprehensive SummaryA three‐component reaction of 1,3‐enynes and cyclobutanone oxime esters in the presence of aryl boronic acids or organozinc reagents via the photoredox/copper or photoredox/nickel catalysis has been established. This redox‐neutral 1,4‐cyanoalkylarylation reaction has demonstrated mild condition, high catalytic reactivity and wide functional group compatibility, allowing access to a variety of functionalized tetra‐substituted allene derivatives with high chemo‐ and regioselectivity. Moreover, using photocatalytic continuous flow technique to promote this process would result in increased yields (70% in flow vs. 61% in batch), reduced reaction times (7 min in flow vs. 6 h in batch), and easy scale‐up (upgrade to gram scale), showcasing its potential as a synthetic platform.
A hybrid HXPLS‐TMFCC parameterization and DCNN‐SFO clustering based speaker diarization system
Authors: Sailaja C , Maloji Suman , Mannepalli Kasiprasad 
Published: April 2022

AbstractThe speaker diarization is considered to be the process by which the speaker signal is segmented, and the speaker identity is grouped into homogenous regions. The central point behind this scheme is the ability to distinguish between the speaker signal and each speaker signal with the label. As mass communication and meetings grow quickly, the diarization of the speakers is burden to improve the readability of the speech transcript. To solve this problem, tangent weighted mel‐frequency cepstral coefficient (TMFCC) and the extended linear prediction with autocorrelation snapshot feature extraction and the speaker diarization approach proposes a deep convolutional neural network (DCNN) for clustering and optimization using sailfish optimizer. A new development in the HXLPS extraction method is the holoentropy with extended linear prediction with autocorrelation snapshot. TMFCC makes more efficient and improves the effectiveness of the proposed scheme using lesser energy frame and higher energy framework. When achieve this, the voice activity detection method can recognize speech and non‐speech signals. Therefore, every segmented signal is represented by the d‐vector. The label of the speaker signal is clustered according to the speaker label used in the DCNN. The evaluation methods, like tracking distance, false alarm rate, diarization error rate examine the effectiveness.
Promotion Strategies of Hole Transport Materials by Electronic and Steric Controls for n–i–p Perovskite Solar Cells
Authors: Cheng Fangwen , Cao Fang , Ru Fan Feng , Wu Binghui 
Published: April 2022

AbstractHole transport materials (HTMs) play a requisite role in n–i–p perovskite solar cells (PSCs). The properties of HTMs, such as hole extraction efficiency, chemical compatibility, film morphology, ion migration barrier, and so on, significantly affect PSCs’ power conversion efficiencies (PCEs) and stabilities. Up till now, researchers have devoted much attention to developing new types of HTMs as well as promoting pristine HTMs using numerous strategies. In this Review, we summarize the design strategies of various common HTMs for n–i–p PSCs are comprehensively discussed from two separate aspects (additive and non‐additive engineering). Additive engineering generally tunes electronic properties of HTMs while non‐additive engineering basically modifies their steric structures. Critical analysis and comparison between these design strategies are provided, considering the overall PCEs and stabilities of PSCs. Finally, a brief perspective on future promising design strategies for HTMs is given, in order to fabricate efficient and stable n–i–p devices for the commercialization of PSCs.
Development of Tetrameric N‐Annulated Perylene Diimides Using “Click” Chemistry
Authors: Koenig Josh D. B. , Farahat Mahmoud E. , Welch Gregory C. 
Published: March 2022

AbstractHerein, we report the design, synthesis, and characterization of two novel N‐annulated perylene diimide (NPDI) tetramer arrays that were developed using copper catalyzed alkyne‐azide cycloaddition. Despite the optoelectronic properties of both tetramers being nearly identical, the two tetramers exhibited very different molecular geometries. The twisted spirobifluorene NPDI tetramer (sbfNPDI4) was found to have an extended and flexible geometry, while the planar pyrene NPDI tetramer (pyrNPDI4) exhibited a highly congested and conformationally locked geometry. Organic photovoltaic devices were constructed to demonstrate the use of both new compounds as electron acceptor materials, where slightly higher power conversion efficiencies were achieved with pyrNPDI4 than sbfNPDI4. This study highlights the viability of using “click” chemistry as a facile synthetic strategy towards the development of new multicomponent perylene diimide materials for organic electronic applications.
Reducing the jamming effects in multicellular Massive MIMO systems
Authors: Gholami‐Dadkan Saeed , Abbasi‐Moghadam Dariush , Kalantarinejad Nazanin 
Published: March 2022

SummaryAs Massive multiple‐input multiple‐output (Ma‐MIMO) is one of the critical 5G technologies, security aspects of this technology in terms of powerful distributive jamming attacks for improving the total system performance are so important. In this paper, we evaluate the sum spectral efficiency (SE) of Ma‐MIMO systems in the multicell scenario concerning jamming effects. First, the closed‐form expression for sum SE using two detectors maximum ratio combining (MRC) and zero‐forcing (ZF) in the presence of a jammer was obtained. Next, the effects of jamming power, the number of base station antennas, the signal‐to‐noise ratio (SNR), and coherence block lengths on the system performance were obtained. Finally, to improve the signal‐to‐noise and interference ratio (SINR) of cell edge users, the problem of optimizing the fairness trade‐off between the central legitimate users and the cell edge legitimate users is modeled by using log barrier functions. We propose an alternating algorithm to solve the non‐convex problem. Numerical results showed that by considering the same interference power and the power of the legitimate users, the sum SE improved with proposed schemes and also by increasing the number of antennas at BS. Also, the ZF outperforms MRC with increasing the number of antennas. Finally, it is shown that by using the optimal legitimate users instead of overall legitimate users, the system performance in terms of fairness sum SE trade‐off improved.
Synthesis of Heterocyclic‐Fused Furans and Dihydrofurans via (4+1)‐Annulation with Ylide: Exploration of Unique Reactivity Behavior of α‐Carbonyl Sulfoxonium Ylide
Authors: Kumar Gulshan , Nagpure Mithilesh , Krishna Rao Vajja , Guchhait Sankar K. 
Published: March 2022

AbstractA (4+1)‐annulation of arylidene heterocyclic‐N‐fused imidazolones with α‐carbonyl sulfoxonium ylides has been developed. The reaction enabled efficient access to a range of N‐heterocycle‐fused furans, such as secondary hydroxyl and the structural parts of drug/bioactive compounds. A unique triple‐role of α‐carbonyl sulfoxonium ylides and a characteristic stereo‐electronic functional behavior of the arylidene N‐fused imidazolones have been explored.
Making faculty work visible: An equity‐minded approach
Authors: Culpepper Dawn , Templeton Lindsey , O'Meara KerryAnn 
Published: March 2022

AbstractThe fact that overloaded plates and stress are common in mid‐career is well known. Likewise, we know that the unequal distribution of faculty workload is one of the most important, yet least talked about, inequities that shape the experiences of faculty members within colleges and universities. In particular, women and racially minoritized mid‐career faculty face unusually high service, teaching, and mentoring workloads. Often we place the onus for aligning time and priorities, and “saying no” on mid‐career faculty members themselves. In this chapter, the author(s) take a different approach, drawing on five years of action research with academic departments. They share key conditions that department leaders can create, and practices they can put in place to scaffold equity and agency in mid‐career faculty workloads and rewards.
Variability in serum creatinine is associated with waitlist and post–liver transplant mortality in patients with cirrhosis
Authors: Cullaro Giuseppe , Hsu Chi‐yuan , Lai Jennifer C. 
Published: March 2022

Abstract

Background and Aims
Kidney function in patients with cirrhosis is dynamic. After controlling for the presence of chronic kidney disease (CKD) and acute kidney injury (AKI), we investigated the impact of variation in clinical function on pre–liver transplantation (LT) and post‐LT outcomes.

Approach and Results
We included adults listed for LT from 2011 through 2018. We excluded those with any exceptions, those on hemodialysis at listing, and those with fewer than three clinical updates in the United Network for Organ Sharing database. Our primary exposure was the serum creatinine coefficient of variation (sCr CoV). Logistic regression determined the associations between our exposures and higher sCr CoV. Competing risk regression determined the associations between our exposures and waitlist mortality, accounting for LT as a competing risk. Cox regression determined the associations between our exposures and either listing for kidney transplant or death. We divided our cohort into tertiles of sCr CoV: low variability, 8.8% (interquartile range [IQR], 6.6%–10.8%); intermediate variability, 17.4% (IQR, 14.8%–20.4%); high variability, 36.8% (IQR, 29.5%–48.8%). We demonstrate that women, those with CKD, and those with advanced liver disease were more likely to have a greater sCr CoV. Compared to those with low variability, those with high variability had significantly higher waitlist mortality (34.7% vs. 19.6% vs. 11.7%, p < 0.001). We highlight that the sCr CoV was associated with higher waitlist and post‐LT mortality—an association independent of baseline sCr, the degree of underlying liver disease, the presence of AKI, or the presence of CKD.

Conclusion
This study informs the long‐term impact of the variation in kidney function we all see in clinical practice. These data highlight that all fluctuations in sCr are associated with worse pre‐LT and post‐LT outcomes.
Inside Cover
Authors: Peng Wenyu , Chen Shuo , Kong Dongsheng , Zhou Xiaojie , Lu Xiaoyun , Chang Chao 
Published: April 2022

This study proposes a convolutional neural network (CNN)‐ based computer‐aided diagnosis (CAD) system for the grade classification of human glioma by using mid‐infrared (MIR) spectroscopic mapping at a single frequency. The proposed system has the advantages of noninvasive, label‐free, time‐saving and highly accurate, which could avoid the limitations of traditional histological diagnosis and will bring great convenience to clinical pathologists.Further details can be found in the article by Wenyu Peng, Shuo Chen, Dongsheng Kong, Xiaojie Zhou, Xiaoyun Lu, and Chao Chang (e202100313)
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Classification of minimal blocking sets in small Desarguesian projective planes
Authors: Coolsaet Kris , Botteldoorn Arne , Fack Veerle 
Published: March 2022

AbstractA full classification (up to equivalence) of all minimal blocking sets in Desarguesian projective planes of order was obtained by computer. The resulting numbers of minimal blocking sets are tabulated according to size of the set and order of the automorphism group. For the minimal blocking sets with the larger automorphism groups explicit descriptions are given. Some of these results can also be generalised to Desarguesian projective planes of higher order.
“They're just, like, there”: A constructivist grounded theory study of student experiences with school resource officers
Authors: Layton Danielle , Gerstenblatt Paula 
Published: March 2022

AbstractSchool‐based policing has become common practice, but there is limited qualitative research examining what meanings students make of police presence in their schools. This study sought to understand how students construct narratives of police presence in their schools based on their experiences with school resource officers (SROs). Drawing on constructivist grounded theory methodology with a sample of 17 students, this study found that students are continuously integrating multiple conflicting narratives about SROs: students experience SROs as an established yet ambiguous presence, which produces mixed feelings of reassurance, wariness, and intimidation. Students manage the conflicts between these narratives by positioning school‐based police as a fixed structure with pitfalls and positives but no alternatives. Additionally, students experience SROs as being available to them in relational capacities. The primary recommendations from this study are for schools and communities to (1) reconsider the appropriateness of SRO programs with student perspectives at the center of dialogue, and (2) invest in non‐law enforcement school‐based professionals who students experience as available and relational.
Structural, optical and photocatalytic properties of Sr‐doped and Ca‐doped BiFeO3 compounds prepared by Pechini method
Authors: E Salaya‐Gerónimo , DS García‐Zaleta , G Jácome‐Acatitla , E Huerta‐García , R López‐González , A Reyes‐Montero , AM Abdel‐Mageed 
Published: March 2022

AbstractBACKGROUNDBiFeO3 is an important new visible‐light photocatalyst for the removal of organic pollutants, the efficacy of which is related to its narrow band gap energy (2.2 eV) and excellent chemical stability. In this work, the effects of Sr and Ca doping on the structural and photocatalytic properties of BiFeO3 were investigated.RESULTSX‐ray diffraction results revealed the formation of a rhombohedral structure (R3c), as well as the successful incorporation of Sr2+ and Ca2+ ions into the BFO structure. The nanometric size of the specimens was in the range 23–55 nm. The percentage of structural phases in the obtained compounds was calculated by Rietveld analysis. Scanning electron microscopy results showed changes in the morphology and grain sizes. The band gap values of the ceramics display a gradual reduction when the dopant concentration is increased. The surface analysis by X‐ray photoelectron spectroscopy revealed, for all compounds, the characteristic peaks of Fe and Bi, as well as Sr and Ca in the doped samples.CONCLUSIONThe photocatalytic activity of the prepared photocatalyst was evaluated by the removal of methylene blue and 4‐chlorophenol. The doped samples showed higher photocatalytic activity compared to the undoped BiFeO3 sample, attributed to the enhanced visible light absorption, the synergistic effects of the BiFeO3 and Bi2Fe4O9 phases, as well as the successful separation of photogenerated electrons and holes induced by Sr and Ca doping. © 2022 Society of Chemical Industry (SCI).
A risk score for predicting death in COVID‐19 in‐hospital infection: A Brazilian single‐center study
Authors: Vieira Marcelo Luiz Campos , Afonso Tania Regina , Oliveira Alessandra Joslin , Stangenhaus Carolina , Dantas Juliana Cardoso Dória , Santos Luiz Otávio Arruda , de França Lucas Arraes , do Prado Rogério Ruscitto , Cordovil Adriana , Monaco Cláudia Gianini , Lira Filho Edgar Bezerra , Rodrigues Ana Clara Tude , Bacal Fernando , de Matos Gustavo Faissol Janot , Antunes Telma , Camargo Luis Fernando Aranha , Fischer Cláudio Henrique , Morhy Samira Saady 
Published: March 2022

AbstractBackgroundThere is a paucity of information about Brazilian COVID‐19 in‐hospital mortality probability of death combining risk factors.ObjectiveWe aimed to correlate COVID‐19 Brazilian in‐hospital patients' mortality to demographic aspects, biomarkers, tomographic, echocardiographic findings, and clinical events.MethodsA prospective study, single tertiary center in Brazil, consecutive patients hospitalized with COVID‐19. We analyzed the data from 111 patients from March to August 2020, performed a complete transthoracic echocardiogram, chest thoracic tomographic (CT) studies, collected biomarkers and correlated to in‐hospital mortality.ResultsMean age of the patients: 67 ± 17 years old, 65 (58.5%) men, 29 (26%) presented with systemic arterial hypertension, 18 (16%) with diabetes, 11 (9.9%) with chronic obstructive pulmonary disease. There was need for intubation and mechanical ventilation of 48 (43%) patients, death occurred in 21/111 (18.9%) patients. Multiple logistic regression models correlated variables with mortality: age (OR: 1.07; 95% CI 1.02–1.12; p: 0.012; age >74 YO AUC ROC curve: 0.725), intubation need (OR: 23.35; 95% CI 4.39–124.36; p < 0.001), D dimer (OR: 1.39; 95% CI 1.02–1.89; p: 0.036; value >1928.5 ug/L AUC ROC curve: 0.731), C‐reactive protein (OR: 1.18; 95% CI 1.05–1.32; p < 0.005; value >29.35 mg/dl AUC ROC curve: 0.836). A risk score was created to predict intrahospital probability of death, by the equation: 3.6 (age >75 YO) + 66 (intubation need) + 28 (C‐reactive protein >29) + 2.2 (D dimer >1900).ConclusionsA novel and original risk score were developed to predict the probability of death in Covid 19 in‐hospital patients concerning combined risk factors.