bluuebunny/crossref_metadata_2025_split huggingface dataset:
Health facilities’ capability to provide comprehensive postabortion care in Sub‐Saharan Africa: Evidence from a cross‐sectional survey across 210 high‐volume facilities
Authors: Compaoré Rachidatou , Mehrtash Hedieh , Calvert Clara , Qureshi Zahida , Bello Folasade Adenike , Baguiya Adama , Msusa Ausbert Thoko , Idi Nafiou , Govule Philip , Tunçalp Ӧzge , Kouanda Seni 
Published: January 2022

AbstractObjectiveTo evaluate the capability of high‐volume comprehensive emergency obstetric care (CEmOC) health facilities on the provision of comprehensive postabortion care (PAC) in Sub‐Saharan Africa and to determine the frequency of women with severe abortion‐related complications in high capability facilities.MethodsA cross‐sectional analysis conducted across 11 countries in Sub‐Saharan Africa, using facility‐level information from the World Health Organization (WHO) Multi‐Country Survey on Abortion‐related morbidity (MCS‐A) between 2017 and 2018. PAC signal functions were adapted to assess facilities’ capability to deliver comprehensive PAC through infrastructure, standard comprehensive capability, and extended comprehensive capability to provide PAC. The percentage of facilities with each signal function and distribution of facilities by number of signal functions were calculated for the three capability categories. Distribution of severe abortion complications by facility capability score was assessed.ResultsOf 210 high‐volume CEmOC facilities included, 47.9% (n = 100) had capability to provide all facility infrastructure signal functions, 54.4% (n = 105) for standard comprehensive PAC, reducing to 17.7% (n = 34) for extended comprehensive PAC capability. Overall, there were gaps in extended capabilities including availability of a functioning ICU (available in 37.3% of facilities) and providers 24/7 (65.5% of facilities reported an obstetrician available 24/7 dropping to 41.3% for anesthesiologists). Facilities’ PAC capability varied across regions. Overall, 34.6% (n = 614) of women with severe abortion‐related complications were treated in facilities with the maximum capability score for extended comprehensive PAC.ConclusionAlthough high levels of capability to provide abortion‐related care for most signal functions were evident, significant gaps that impact on the management of severe abortion‐related complications remain, particularly related to extended facility capabilities including specialized human resources and ICU.
Photoacoustic identification of blood authenticity based on quantum‐behaved particle swarm optimized wavelet neural network
Authors: Liu Tao , Ren Zhong , Wu Junli , Xiong Chengxin , Peng Wenping 
Published: January 2022

AbstractTo accurately identify the blood authenticity, a set of photoacoustic detection system was established. In experiments, five kinds of blood in total of 125 groups were used, the time‐resolved photoacoustic signals and peak‐to‐peak spectra were obtained in 700 to 1064 nm. Experimental results showed the accurate identification of blood authenticity was limited due to overlap of signals and spectra. To solve the problem, wavelet neural network (WNN) was employed to supervised train peak‐to‐peak spectra of 100 samples. The correct rate was 72% for 25 test samples. To improve correct rate, the parameters of WNN were optimized by quantum‐behaved particle swarm optimization (QPSO) algorithm. Meanwhile, the effects of neurons number, learning rate factors, iteration times and training times on correct rate were studied and compared with WNN and WNN‐PSO algorithms. Results showed the correct rate of WNN‐QPSO was increased to 96%. Then, three kinds of dynamic contraction‐expansion coefficients were used. Under the optimal dynamic coefficient, the correct rate reached 100%. Moreover, the truncated mean stabilization strategy (TMSS) was coupled to improve the convergent speed. Finally, 10 algorithms were compared. Results demonstrated that photoacoustic spectroscopy combined with WNN‐QPSO coupled with TMSS and dynamic contraction‐expansion coefficient had an excellent performance in the identification of blood authenticity.
Frequency of serological markers of rheumatoid arthritis in adult patients with active celiac disease
Authors: Ghozzi Mariam , Melayah Sarra , Adaily Najeh , Ghedira Ibtissem 
Published: January 2022

AbstractBackgroundCeliac disease (CD) and rheumatoid arthritis (RA) are multisystem autoimmune diseases affecting 1% of general populationa. Both diseases share genetic and immunological features.AimIn this retrospective study, we aim to determine the frequency of auto‐antibodies of RA in adult patients with CD.Materials and methodsSeventy seven adult patients with active CD were included in the present study. Ninety healthy blood donors (HBD) served as control group. Anti‐cyclic citrullinated peptides antibodies (CCP‐Ab) and rheumatoid factors (RF; IgA, IgG and IgM) were determined by enzyme linked immunosorbent assay (ELISA) for patients and control group. For statistical analysis, we used Chi‐square or Fisher's exact test.ResultsOur study included 77 adult patients with active celiac disease (57 female, 20 male). Twenty‐four (31.2%) active celiac patients and 7 (7.8%) blood donors had CCP‐Ab or RF (31.2% vs 7.8%, p < 10–4). Only two patients (2.6%) had both CCP‐Ab and RF. IgA was the predominant isotype of RF in celiac patients (n = 18; 23.4%) while none of healthy blood donors had RF‐IgA (23.4% vs 0.0%, p < 10–4).ConclusionThe current study has shown that CD is associated with a high frequency of RF‐IgA suggesting that celiac patients could be at a higher risk of developing RA.
Reconsidering Max Weber's journey to the United States: Sociological connections between race relations and American capitalism
Authors: Segre Sandro 
Published: January 2022

AbstractThis article sets out to investigate Weber's major sources of interest in his American journey, namely, rampant capitalism as most evident in some large cities, the presence of Calvinism and of a bourgeois ethos in some Northern areas of the United States, and the persisting relevance of a precapitalist status order in the South. As Weber argued, in these distinct settings different status groups and anthropological types were all connected, each in its own way, with modern formally rational capitalism. The significance of Weber's journey in the Unites States lied in the opportunity this journey offered him to delineate in ideal‐typical terms a number of status groups and anthropological types to which he paid attention in the course of this travel.
Ultrastructure of sonic muscles of piranhas (Serrasalmidae)
Authors: Raick Xavier , Thelen Nicolas , Compère Philippe , Parmentier Eric 
Published: January 2022

AbstractAmong piranhas, different species are able to produce sounds but not all of them use the same mechanism. In all species, the sound‐producing muscle originates on the second vertebra, but the insertion differs. Pygopristis denticulata can produce two kinds of pulsed sounds emitted in trains. Its sound production mechanism is mainly based on a muscle bundle that inserts between the two first ribs. In Catoprion mento, the anterior part of the sonic muscle inserts directly on the swim bladder. The most derived species (Serrasalmus and Pygocentrus) make all harmonic tonal sounds. Their sonic muscles constitute a single functional unit transversally surrounding the swim bladder. This study aims to study the ultrastructure of sonic muscles in nine species from these four genera. Epaxial muscles were compared with sonic muscles, and the sonic muscles of the different species were compared between them. Results confirmed ultrastructure modifications in the sonic muscles in comparison to epaxial muscles. Fibers of the sonic muscle are thinner and possess a thicker subsarcolemmal ring housing mitochondria. In sonic muscles, myofibrils are also proportionally less abundant, and their sarcomeres are longer and thinner. Some of these differences allows to separate basal species (e.g., P. denticulata) from more derived species (genera Pygocentrus and Serrasalmus) and supposedly support the observed differences in the acoustic abilities.
Authenticity is associated with psychological and subjective well‐being: Convergence between the self‐report and informant's report
Authors: Galinha Iolanda Costa , Balbino Isabel Faustino , Devezas Miguel Ângelo , Trigo Beatriz Regina 
Published: January 2022

AbstractIn a community sample of 301 participants, association analyses between authenticity and psychological and subjective well‐being show strong and moderate associations, respectively, with implications for humanistic theory and counselling. The results also show convergence between self‐reports and informants’ reports on life satisfaction and authenticity, providing novel scientific contributions.
High‐temperature corrosion behavior of Inconel 617 with Ni‐claddings in molten FLiNaK salt
Authors: Gao Lina , Han Fenfen , Chen Shuangjian , Ye Xiang‐Xi , Leng Bin 
Published: January 2022

AbstractIn this study, the Ni‐cladding layer was deposited on Inconel 617 substrate as a corrosion‐resistant layer by gas tungsten arc welding. The corrosion behavior of Inconel 617 alloys with and without Ni‐cladding layer, and individual Ni‐claddings was studied at 850°C in molten FLiNaK salts with a high Ni2+ concentration. After corrosion, FeNi3 layers cover the surface of all alloy specimens. Inconel 617 suffers from severe Cr depletion, whereas Ni‐claddings with low Cr content demonstrate significantly improved corrosion resistance. For Ni‐clad Inconel 617, if Ni‐claddings are broken, the coupling of Ni‐claddings and Inconel 617 can accelerate the corrosion of Inconel 617 by galvanic corrosion, inducing a mass transfer of Co from Inconel 617 to Ni‐claddings through the molten salts.
Corrosion behavior of the nickel/nickel interface during the copper‐sacrificial layer release process in micro‐electroforming
Authors: Wang Lili , Ye Minheng , Wang Yingying , Tian Dong , Ye Zuoyan , Wang Chao 
Published: January 2022

AbstractThis study investigates the corrosion behavior of the nickel/nickel (Ni/Ni) interface during the release of the copper‐sacrificial layer in multilayered micro‐electroforming. By altering the pre‐ and posttreatment of multilayered micro‐electroforming (degreasing, in situ anodic treatment, pickling, repassivation, and heat treatment), six different types of Ni/Ni interfaces were obtained. The activities and surface characteristics of the pretreated Ni substrates were investigated via open circuit potential and X‐ray photoelectron spectroscopy. The microstructures of the as‐prepared Ni/Ni interfaces were determined using scanning electron microscopy; after releasing the sacrificial layer in the ferric chloride solution, their corrosion morphologies and corrosion depths were observed under a three‐dimensional microscope with an ultra‐depth of field. The Ni/Ni interface showed a pre‐existing passive layer and interfacial defects. The interface was more prone to attack than the Ni base. Pitting corrosion along the interface boundary occurs via three main processes—initiation, growth, and pit coalescence—with a corresponding reduction in the interfacial adhesion strength and ultimately the structural integrity. The combination of substrate modification (degreasing and pickling) and heat posttreatment effectively avoids localized corrosion. We believe that the surface activation and thermally induced diffusion have worked.
Sensor‐driven autonomous underwater inspections: A receding‐horizon RRT‐based view planning solution for AUVs
Authors: Zacchini Leonardo , Franchi Matteo , Ridolfi Alessandro 
Published: January 2022

AbstractAutonomous Underwater Vehicles (AUVs) are used by the scientific community for various applications, from collecting well‐distributed high‐quality data to mapping the seafloor or exploring unknown areas. Nonpredictable environmental conditions and sensor acquisitions make the design of AUV surveys challenging even for expert operators. Multiple attempts are required, and the collected data quality is not guaranteed: The AUV passively stores the sensors' acquisitions that are then analyzed offline after its recovery. In Forward‐Looking SONAR (FLS) seabed inspections, the vehicle follows lawnmower paths designed by an expert operator that considers the sensor characteristics. The performance of FLSs is affected by several environmental conditions and possible protruding objects. This paper presents a probabilistic framework for FLS‐based seabed inspections that endow the AUV with the ability to autonomously conducting the survey and ensure adequate coverage of the target area. A three‐dimensional probabilistic occupancy mapping system for FLS reconstructions to update the covered area map was developed. The map is used by the Coverage Path Planning (CPP) algorithm to evaluate the visibility of the viewpoints that are generated as nodes of a random tree. The Next‐Best Viewpoint (NBV) is selected as the first node in the branch expected to collect more data, and the path to reach the NBV is computed using the rapidly exploring random tree (RRT*) algorithm. The sensor‐driven coverage approach is used in a receding‐horizon manner. The proposed Receding‐Horizon Coverage Approach was validated with simulations and real prerecorded data. Finally, the framework was used online during an experimental campaign where several FLS seabed inspections were performed.
Physico‐Chemical Properties, Pharmacokinetics, Molecular Docking and In‐Vitro Pharmacological Study of a Cobalt (II) Complex Based on 2‐Aminopyridine
Authors: Mhadhbi Noureddine , Issaoui Noureddine , Hamadou Walid S. , Alam Jahoor M. , Elhadi Abdelmonein S. , Adnan Mohd , Naϊli Houcine , Badraoui Riadh 
Published: January 2022

AbstractThe organic‐inorganic hybrid compound (2‐HAP)2[CoBr4], (2‐HAP=2‐protonated aminopyridinium cation) was characterized by various physicochemical techniques. Hirshfeld surfaces and 2D fingerprint plots reveal the intermolecular interactions accountable for the generation of the crystal packing. The differential scanning calorimetric (DSC) disclosed three phase transitions at T1=61.9 °C, T2=107.6 °C and T3=172 °C. The electronic parameters such as frontier molecular orbitals, HOMO‐LUMO energy and electrochemical band gaps (E’g) were computed. The redox properties of the complex were examined by cyclic voltammetry. The thermodynamic properties of the compound were computed for the range temperature of 100–1000 K. The antioxidant activities were examined using DPPH, ABTS, β‐carotene and FRAP assays. The anticancer effects were evaluated using malignant Mat−Ly−Lu and Walker 256/B cell lines. The antiviral effects of the organic part of the hybrid compound were tested using molecular docking; interestingly, the binding predicted energy was −4.0 vs −5.3 kcal/mol, for chloroquine as a reference. The drug‐likeness, pharmacokinetics, molecular binding and chemo‐preventive assays show that (2‐HAMP)2[CoBr4] has promising biological potentials.
Synthesis and Characterization of Poly(m‐tolyloxy‐co‐4‐pyridinoxy phosphazene)s and their Application as Proton Exchange Membranes
Authors: Yigen Burak , Kassim Ali Mariamu , Karatas Betul , Alkan Gürsel Selmiye , Karatas Yunus 
Published: January 2022

AbstractA novel set of polyphosphazenes are synthesized to produce three polymers with varying side group ratios for proton exchange membranes. The designed heterosubstituted polymers here are the rare examples of polyphosphazenes of this kind to serve as proton exchange membranes with optimized structural stability and high temperature ionic conductivity. High quality polyphosphazenes with narrow polydispersity and rather low Tg values were prepared. These poly(m‐tolyloxy‐co‐4‐pyridinoxy phosphazene)s are sulfonated under a range of conditions and characterized in order to investigate the synergetic effect of the heteroatom on the proton conductivity of the proton exchange membranes. The effect of sulfonation temperature and time on the fuel cell relevant properties is also investigated. Hydrolytically stable proton exchange membranes with high thermal and chemical stabilities are achieved. Additionally, resultant membranes exhibit proton conductivity, IEC and water uptake values comparable with commercial Nafion® membranes.
Castagnoli‐Cushman Reaction of 3‐Aryl Glutaric Acids: A Convenient, Diastereoselective Reaction for 6‐Oxo‐2,4‐diarylpiperidine‐3‐carboxylic Acid Scaffold
Authors: Paramonova Polina , Bakulina Olga , Nabiyev Alem , Dar'in Dmitry , Krasavin Mikhail 
Published: January 2022

Abstract3‐Aryl glutaric acid anhydrides have been explored as substrates for the Castagnoli‐Cushman reaction with imines. A series of 3‐aryl glutaric acids was synthesized according to literature protocols and introduced into the reaction with imines in the presence of acetic anhydride. The latter acted as a dehydrating agent leading to in situ generation of a cyclic anhydride from the dicarboxylic acid starting material. Reassuringly, the reaction gave the desired δ‐lactams with three newly created stereocenters as predominantly one diastereomer whose relative configuration was established by single‐crystal X‐ray crystallography.
Construction and Aromatization of Hantzsch 1,4‐Dihydropyridines under Microwave Irradiation: A Green Approach
Authors: Heravi Majid M. , Zadsirjan Vahideh 
Published: January 2022

AbstractHantzsch reaction, leading to the synthesis of 1,4‐dihydropyridines (1,4‐DHPs) with momentous biological activities and pharmacological properties is a well‐known MCR. In recent years, microwave irradiation (MWI) has been successfully used as the unconventional and green source of energy to promote organic transformations including Hantzsch 1,4‐dihydropyridines. Literature survey disclosed that construction of 1,4‐DHPs as well as their aromatization can be successfully performed under MWI in solution as well as in dry media. In this review, we try to underscore recent advances in the synthesis and aromatization of Hantzsch 1,4‐DHPs under MWI as green approach.
Addressing contextual influences: Utilizing critical perspectives and social justice to inform leadership praxis
Authors: Navarro Christine D. , Steele Michelle Cummings 
Published: January 2022

AbstractEvents, movements, and tragedies at the local, national, and global levels spark conversations that influence leaders’ thinking and behavior. Understanding complexities of contextual factors as they relate to broader conversations and influence thinking and behaviors is a crucial step that can be overlooked. This article explores utilizing critical perspectives and social justice to inform leadership praxis.
Planar Si5 and Ge5 Pentagons beside Isolated Phosphide Anions in Lithium Phosphide Tetrelides Li10+xSi5P and Li10+xGe5P
Authors: Eickhoff H. , Klein W. , Toffoletti L. , Raudaschl‐Sieber G. , Fässler T. F. 
Published: January 2022

AbstractBinary lithium silicides and germanides as well as ternary lithium phosphidotetrelates have been intensively investigated with regard to their suitability as anode materials for all‐solid‐state‐batteries. In this context we studied the ternary phase diagram Li/Tt/P on the phosphorus‐poor side. The phosphide tetrelides Li10.68(8)Si5P and Li10.1(2)Ge5P are ternary compounds in the respective phase systems so far uniquely featuring discrete building blocks, which were previously found exclusively in binary alkali metal tetrelides and phosphides. Li10.68(8)Si5P and Li10.1(2)Ge5P contain aromatic Tt5 pentagons with an environment of mostly ordered Li atoms and isolated P3− anions with a coordination environment of predominantly disordered Li atoms. The five‐membered ring subunits are stacked under formation of
[Li6Tt5] chains (Tt=Si, Ge). chains. The compounds crystallize in the space group Pnma (63) (Z=4) with cell parameters of a=10.2434(3) Å, b=4.2788(1) Å, c=23.9767(3) Å for Li10.68(8)Si5P and a=10.3599(11) Å, b=4.3072(2) Å, c=24.267(2) Å for Li10.1(2)Ge5P. The single crystal structure determination is supplemented by X‐ray powder diffraction experiments and 7Li, 29Si and 31P solid state MAS NMR spectroscopy. With respect to their electron count the compounds are placed between compounds comprising aromatic five‐membered rings such as the electron‐precise Zintl phase Li8MgSi6 and the non‐classical Zintl phase Li12Si7 having two extra electrons.
Changes in Typhoon Regional Heavy Precipitation Events over China from 1960 to 2018
Authors: Tian Yangmei , Mcbride John L. , Ren Fumin , Li Guoping , Feng Tian 
Published: January 2022

AbstractIn earlier studies, objective techniques have been used to determine the contribution of tropical cyclones to precipitation (TCP) in a region, where the Tropical cyclone Precipitation Event (TPE) and the Regional Heavy Precipitation Events (RHPEs) are defined and investigated. In this study, TPE and RHPEs are combined to determine the Typhoon Regional Heavy Precipitation Events (TRHPEs), which is employed to evaluate the contribution of tropical cyclones to regional extreme precipitation events. Based on the Objective Identification Technique for Regional Extreme Events (OITREE) and the Objective Synoptic Analysis Technique (OSAT) to define TPE, temporal and spatial overlap indices are developed to identify the combined events as TRHPE. With daily precipitation data and TC best-track data over the western North Pacific from 1960 to 2018, 86 TRHPEs have been identified. TRHPEs contribute as much as 20% of the RHPEs, but 100% of events with extreme individual precipitation intensities. The major TRHPEs continued for approximately a week after tropical cyclone landfall, indicating a role of post landfall precipitation. The frequency and extreme intensity of TRHPEs display increasing trends, consistent with an observed positive trend in the mean intensity of TPEs as measured by the number of daily station precipitation observations exceeding 100 mm and 250 mm. More frequent landfalling Southeast and South China TCs induced more serious impacts in coastal areas in the Southeast and the South during 1990–2018 than 1960–89. The roles of cyclone translation speed and “shifts” in cyclone tracks are examined as possible explanations for the temporal trends.