bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of tribological and biological properties of TaB2/PEEK composite coatings prepared by electrodeposition
Authors: Huang Suyuan , Cao Lin , Li Wei , Lin Zhidan , Zhang Peng 
Published: February 2022

AbstractIt is well‐known that a lower wear rate, favorable mechanical properties, and limited inflammatory response are critical factors in determining the long‐term service of orthopedic implants. In this study, we prepare TaB2/PEEK coatings by electrophoretic deposition (EPD) of borated tantalum (TaB2) and polyether‐ether‐ketone (PEEK) particles on a pure titanium plate (TA2). Nanoindenter, reciprocating ball‐on‐disc tester, and in vitro biological experiments were used to investigate the effects of TaB2 particles on the mechanical properties, tribological properties, and biological properties of composite coatings. The results demonstrate that a small amount of TaB2 particles were equally dispersed in the PEEK matrix, and the mechanical properties are improved, resulting in better tribological properties of the coating. In particular, the wear rate of P‐TB‐3 coating in the simulated body fluid (SBF) was 72% lower than that of the PEEK coating, with a friction coefficient (COF) of 0.164 and a wear rate of 1.45 × 10−6 mm3·N−1 m−1, respectively. Furthermore, the P‐TB‐3 surface boosted Raw264.7 macrophage adherence and proliferation, with a potential to promote Raw264.7 macrophage transition to the M2 phenotype. These results suggest that the P‐TB‐3 coating prepared by EPD is considered as a promising implant replacement material.
Thermally Chargeable Ammonium‐Ion Capacitor for Energy Storage and Low‐Grade Heat Harvesting
Authors: An Yufeng , Li Zhiwei , Sun Yao , Li Shaopeng , Xu Yinghong , Dou Hui , Zhang Xiaogang 
Published: February 2022

AbstractHarvesting heat from the low‐grade heat (below 100 °C) into electricity has the signification to enhance the utilization of energy and lower carbon emissions by a simple device. Herein we demonstrate a thermally chargeable ammonium ion capacitor (TAIC) by employing graphene‐polyimide (rGO‐PI) synthesized through polycondensation of 1,4,5,8‐naphthalenetetracarboxylic dianhydride and ethylenediamine as cold electrode, N‐doped hollow carbon nanofibers as hot electrode to directly convert waste heat into electricity. Combining thermodiffusion effect of electrolyte with thermogalvanic effect of a redox couple (−C=O/−C−O−NH4+), as‐assembled TAIC can deliver a high output voltage of 624 mV, power density of 82 μW cm−2 and average Seebeck coefficient of 9.07 mV K−1 at temperature difference of 45 K. Meanwhile, with the introduction of polyacrylamide‐polyacrylic acid‐based gel electrolyte, the assembled flexible device can well serve in various bending states, and the power density can attain a satisfying value of 1.92 μW cm−2. This quasi‐solid‐state TAIC shows great potential as one promising candidate for high value‐added conversion from low‐grade heat into electricity as well as wearable applications.
Melanin nanoparticles enhance the neuroprotection of mesenchymal stem cells against hypoxic‐ischemic injury by inhibiting apoptosis and upregulating antioxidant defense
Authors: Tang Chunliu , Luo Jiefeng , Yan Xianjia , Huang Qiaojuan , Huang Zhenhua , Luo Qi , Lan Yuan , Chen Dingzhi , Zhang Baolin , Chen Menghua , Kong Deyan 
Published: February 2022

AbstractPolydopamine nanoparticles are artificial melanin nanoparticles (MNPs) that show strong antioxidant activity. The effects of MNPs on the neuroprotection of mesenchymal stem cells (MSCs) against hypoxic‐ischemic injury and the underlying mechanism have not yet been revealed. In this study, an oxygen–glucose deprivation (OGD)‐injured neuron model was used to mimic neuronal hypoxic‐ischemic injury in vitro. MSCs pretreated with MNPs and then cocultured with OGD‐injured neurons were used to investigate the potential effects of MNPs on the neuroprotection of MSCs and to elucidate the underlying mechanism. After coculturing with MNPs‐pretreated MSCs, MSCs, and MNPs in a transwell coculture system, the OGD‐injured neurons were rescued by 91.24%, 79.32%, and 59.97%, respectively. Further data demonstrated that MNPs enhanced the neuroprotection against hypoxic‐ischemic injury of MSCs by scavenging reactive oxygen species and superoxide and attenuating neuronal apoptosis by deactivating caspase‐3, downregulating the expression of proapoptotic Bax proteins, and upregulating the expression of antiapoptotic Bcl‐2 proteins. These findings suggest that MNPs enhance the neuroprotective effect of MSCs against hypoxic‐ischemic injury by inhibiting apoptosis and upregulating antioxidant defense, which could provide some evidence for the potential application of combined MNPs and MSCs in the therapy for ischemic stroke.
Epilepsia partialis continua associated with ketotic hyperglycemia and tuberculous meningoencephalitis: A case report
Authors: Balola Cordule , Nzabara Fabrice , Tshongo Muhindo Christian , Cikomola Cirhuza , Maheshe Ghislain Balemba , Baguma Marius 
Published: February 2022

AbstractWe report the case of an 18‐year‐old girl who presented with several episodes of simple partial motor seizures compatible with the diagnosis of epilepsia partialis continua. In addition to ketotic hyperglycemia, tuberculous meningoencephalitis was diagnosed based on clinical, biological, and brain imaging findings. The seizures ceased after normalization of glycemia.
Development of Strong Visible‐Light‐Absorbing Cyclometalated Iridium(III) Complexes for Robust and Efficient Light‐Driven Hydrogen Production
Authors: Yiu Sze‐Chun , Ho Po‐Yu , Kwok Yan‐Yi , He Xiaojie , Wang Yi , Yu Wai‐Hong , Ho Cheuk‐Lam , Huang Shuping 
Published: February 2022

AbstractWeak light absorption of common Ir(III) complexes (e. g., using phenylpyridine as the ligand) has hindered their applications in photocatalytic hydrogen generation from water as an efficient photosensitizer. To address this issue, a series of cyclometalated Ir(III) complexes (Ir1–Ir5), featuring different electron‐donating substituents to enhance the absorptivity, have been synthesized and studied as photosensitizers (PSs) for light‐driven hydrogen production from water. Ir6–Ir7 were prepared as fundamental systems for comparisons. Electron donors, including 9‐phenylcarbazole, triphenylamine, 4,4′‐dimethoxytriphenylamine, 4,4′‐di(N‐hexylcarbazole)triphenylamine moieties were introduced on 6‐(thiophen‐2‐yl)phenanthridine‐based cyclometalating (C^N) ligands to explore the donor effect on the hydrogen evolution performance of these cationic Ir(III) complexes. Remarkably, Ir4 with 4,4′‐dimethoxytriphenylamine achieved the highest turn‐over number (TON) of 12 300 and initial turnover frequency (TOFi) of 394 h−1, with initial activity (activityi) of 547 000 μmol g−1 h−1 and initial apparent quantum yield (AQYi) of 9.59 %, under the illumination of blue light‐emitting diodes (LEDs) for 105 hours, which demonstrated a stable three‐component photocatalytic system with high efficiency. The TON (based on n(H2)/n(PSr)) in this study is the highest value reported to date among the similar photocatalytic systems using Ir(III) complexes with Pt nanoparticles as catalyst. The great potential of using triphenylamine‐based Ir(III) PSs in boosting photocatalytic performance has also been shown.
Solid Base Assisted Dual‐Promoted Heterogeneous Conversion of PVC to Metal‐Free Porous Carbon Catalyst
Authors: Wang Haobo , Xu Shumao , Dong Wujie , Sun Du , Zhang Shaoning , Han Zhen , Huang Fuqiang 
Published: February 2022

AbstractPolyvinyl chloride (PVC) is widely used in daily life, but its waste has become a serious environmental problem. A solid base assisted low‐temperature solvothermal dehalogenation was developed in this work to sustainably and efficiently transform PVC into high‐value dimethylamine hydrochloride (DMACl) chemical and N,O co‐doped carbon monolith with hierarchically porous structure. The synergistic promotion of solid‐base catalyst and solvent decomposition with the removal of HCl can shift forward the chemical equilibrium to promote the dechlorination of PVC and increase the carbon yield. Meanwhile, the solid‐base catalyst can also act as a pore‐forming additive to fabricate the carbon monolith with hierarchical pores. Induced by the high specific surface area, hierarchical pores and N,O co‐doped structure, the generated carbon monolith exhibits superior electrocatalytic performance towards H2 evolution. These discoveries shed light on the design of synergistically coupled solvent and solid catalyst to promote the heterogeneous conversion of waste chlorinated plastics into high‐value chemicals for a sustainable future.
Different Bonding Defects on Dual‐Metal Single‐Atom Electrocatalyst CoZnN6(OH) for Oxygen Reduction Reaction
Authors: Zhao Mengyuan , Gan Guoyou , Zhang Qiuju 
Published: February 2022

AbstractSince dual‐metal single‐atom catalyst (CoZnN/C) has been experimentally synthesized by atomically arching CoZn on N‐doped carbon nanofibers and exhibited potential electrocatalysis activity towards oxygen reduction reaction (ORR), we perform first‐principles calculations to identify the highly active sites at different defects by comparing the four‐step ORR processes on the constructed four CoZnN6 models on graphene. The corresponding N‐edge effect, dopant effect, and C‐edge ring‐closing effect are evaluated with the ORR evolution on different bonding environments, including pristine CoZnN6(OH), nanoribbon (NR) along zigzag direction, substitution of carbon/oxygen (C/O substitution), and C‐edge ring‐closing configurations. OH‐ligand is shown to significantly improve the ORR activities for all the considered structures. Especially, C‐substituted CoZnN6(OH), NR‐CoZnN5O(OH) and CoZnN6(OH) with C‐edge‐effect exhibit obviously reduced overpotentials (ηlim=0.28, 0.48 and 0.41 V) of rate‐determining steps among all the considered nine candidates. By plotting the relationship between the limiting potentials (Ulim) and free energies of intermediate *OH (ΔGOH*), two prior catalysts of pristine‐CoZnN5C(OH) and defect‐CoZnN6CH(OH) are located near the top of the volcano curve with higher Ulim=0.95 and 0.82 V than Pt(111) (Ulim=0.80 V), implying that C‐substitution could facilitate ORR performance in pristine‐ and defect‐CoZnN6(OH) bonding situation.
The relationship between the therapeutic alliance in psychotherapy and suicidal experiences: A systematic review
Authors: Huggett Charlotte , Gooding Patricia , Haddock Gillian , Quigley Jody , Pratt Daniel 
Published: February 2022

AbstractIt is well established that there is a fundamental need to develop a robust therapeutic alliance to achieve positive outcomes in psychotherapy. However, little is known as to how this applies to psychotherapies which reduce suicidal experiences. The current narrative review summarizes the literature which investigates the relationship between the therapeutic alliance in psychotherapy and a range of suicidal experiences prior to, during and following psychotherapy. Systematic searches of MEDLINE, PsycINFO, Web of Science, EMBASE and British Nursing Index were conducted. The search returned 6472 studies, of which 19 studies were eligible for the present review. Findings failed to demonstrate a clear link between suicidal experiences prior to or during psychotherapy and the subsequent development and maintenance of the therapeutic alliance during psychotherapy. However, a robust therapeutic alliance reported early on in psychotherapy was related to a subsequent reduction in suicidal ideation and attempts. Study heterogeneity, varied sample sizes and inconsistent reporting may limit the generalizability of review findings. Several recommendations are made for future psychotherapy research studies. Training and supervision of therapists should not only highlight the importance of developing and maintaining the therapeutic alliance in psychotherapy when working with people with suicidal experiences but also attune to client perceptions of relationships and concerns about discussing suicidal experiences during therapy.
Klimaresilienz in der Nachhaltigkeitsbewertung von Bauweisen
Authors: Pohl Sebastian , Clanget‐Hulin Martina , Purkert Benjamin 
Published: February 2022

AbstractVor dem Hintergrund der weltweit spürbaren Auswirkungen des Klimawandels gewinnt das klimaresiliente Bauen in Deutschland stetig an Bedeutung. Dieser Beitrag zeigt auf, wie bereits heute die Klimaresilienz Eingang in die verschiedenen Systeme der Nachhaltigkeitsbewertung wie das Deutsche Gütesiegel Nachhaltiges Bauen (DGNB) oder das Bewertungssystem Nachhaltiges Bauen des Bundes (BNB) findet. Daraufhin erfolgt eine Filterung der im Nachhaltigkeitsziel „Anpassung an den Klimawandel” der EU‐Taxonomie genannten Klimagefahren hinsichtlich klimainduzierter und konstruktionsspezifischer Umwelt‐ und Standortrisiken. Für diese erfolgt abschließend eine grobe Einschätzung der Klimaresilienz marktüblicher Bauweisen des Wohnungsbaus.
Assessment of medium and large‐sized mammals and their behavioral response toward anthropogenic activities in Jorgo‐Wato Protected Forest, Western Ethiopia
Authors: Erena Mosissa Geleta 
Published: February 2022

AbstractMedium and large‐sized mammals of Jorgo‐Wato Protected Forest have not yet been documented though the forest established before four decades. Hence, this study aims to document medium and large mammals and the behavioral responses of selected mammals toward anthropogenic activities in the study area. The study was conducted from February 2015 to June 2016, encompassing the wet and dry seasons. Data were collected mainly through camera traps, indirect and direct evidence. The study revealed about 23 medium and large‐sized mammals that belong to seven orders namely Bovidae, Carnivora, Primates, Rodentia, Tubulidentata, Lagomorpha, and Hyracoidea. Papio anubis, C. guereza, and C. aethiops were the most abundant large mammals in JWPF. Because of high anthropogenic activities, African buffalo shifted its activity period from diurnal into crepuscular and nocturnal. African buffalo traveled longer distances during the wet season (mean = 14.33 km, SD = 1.25 km) than during the dry season (mean = 9.00 km, SD = 2.16 km). This could be due to the fact that the local people were less likely to go to the forest for resource exploitation during the wet season as they are fully engaged in agricultural activities. However, low agricultural activities during the dry season allow the local people to extract resources and involve in bushmeat hunting which could limit the movement of mammals to their refugia. African buffalo preferred to rest on and adjacent to a gravel road (22.1%) in the forest, followed by on open rocky hilltops (14.7%) at night time, but rest in the bottomland thicket vegetation during the dry daytime. Regardless of high human pressure in the area, this study has revealed a good number of medium and large‐sized mammals that could be used as baseline information to design a sound conservation and management action plan of large mammals and their habitat in Jorgo‐Wato Protected Forest.
Simultaneous selection on vegetative and reproductive phenology in a perennial herb
Authors: Fogelström Elsa , Zacchello Giulia , Ehrlén Johan 
Published: February 2022

AbstractThe timing of different life‐history events is often correlated, and selection might only rarely be exerted independently on the timing of a single event. In plants, phenotypic selection has often been shown to favor earlier flowering. However, little is known about to what extent this selection acts directly versus indirectly via vegetative phenology, and if selection on the two traits is correlational. We estimated direct, indirect, and correlational phenotypic selection on vegetative and reproductive phenology over 3 years for flowering individuals of the perennial herb Lathyrus vernus. Direct selection favored earlier flowering and shorter timespans between leaf‐out and flowering in all years. However, early flowering was associated with early leaf‐out, and the direction of selection on leaf‐out day varied among years. As a result, selection on leaf‐out weakened selection for early flowering in one of the study years. We found no evidence of correlational selection. Our results highlight the importance of including temporally correlated traits when exploring selection on the phenology of seasonal events.
Cover and density of southwestern ponderosa pine understory plants in permanent chart quadrats (2002–2020)
Authors: Moore Margaret M. , Jenness Jeffrey S. , Laughlin Daniel C. , Strahan Robert T. , Bakker Jonathan D. , Dowling Helen E. , Springer Judith D. 
Published: February 2022

AbstractThis data set consists of 101 permanent 1 m × 1 m (1‐m2) quadrats located within southwestern ponderosa pine ecosystems near Flagstaff, Arizona, USA. Individual plants in these quadrats were identified and mapped annually for 19 years (2002–2020). The original chart quadrats were established between 1912 and 1927 to determine the effects of domestic livestock grazing on herbaceous plants and pine seedlings. Today these data provide opportunities to examine the effects of climate and land‐use change on plant demography, population dynamics, and community processes. We provide the following data and data formats: (1) digitized maps of all plant locations in shapefile and geodatabase format, (2) shapefiles showing annual locations of each individual plant species, (3) annual maps of each quadrat in TIFF and PDF format, (4) annual basal area of each species per quadrat for species mapped as polygons, (5) tabular representation of polygon areas and centroid locations for plant species mapped as polygons, (6) tabular representation of point locations for plant species mapped as points, (7) plot‐scale 20 m × 20 m overstory tree canopy cover, tree basal area, parent material, and elevation, (8) quadrat‐scale information (e.g., quadrat site and number, coordinates in UTM Zone 12 and latitude/longitude, and descriptive comments for each quadrat), (9) plant species list, (10) summary of plant species observed in each quadrat, (11) summary of quadrats mapped by site and year, and (12) data formatted for use in Integral Projection Models (IPM) and plant population analyses. There are no copyright restrictions; please cite this paper and the associated data set when data are used in publications.
Patient profile and outcomes associated with follow‐up in specialty vs. primary care in heart failure
Authors: Lindberg Felix , Lund Lars H. , Benson Lina , Schrage Benedikt , Edner Magnus , Dahlström Ulf , Linde Cecilia , Rosano Giuseppe , Savarese Gianluigi 
Published: February 2022

AbstractAimsFactors influencing follow‐up referral decisions and their prognostic implications are poorly investigated in patients with heart failure (HF) with reduced (HFrEF), mildly reduced (HFmrEF), and preserved (HFpEF) ejection fraction (EF). We assessed (i) the proportion of, (ii) independent predictors of, and (iii) outcomes associated with follow‐up in specialty vs. primary care across the EF spectrum.Methods and resultsWe analysed 75 518 patients from the large and nationwide Swedish HF registry between 2000–2018. Multivariable logistic regression models were fitted to identify the independent predictors of planned follow‐up in specialty vs. primary care, and multivariable Cox models to assess the association between follow‐up type and outcomes. In this nationwide registry, 48 115 (64%) patients were planned for follow‐up in specialty and 27 403 (36%) in primary care. The median age was 76 [interquartile range (IQR) 67–83] years and 27 546 (36.5%) patients were female. Key independent predictors of planned follow‐up in specialty care included optimized HF care, that is follow‐up in a nurse‐led HF clinic [odds ratio (OR) 4.60, 95% confidence interval (95% CI) 4.41–4.79], use of HF devices (OR 3.99, 95% CI 3.62–4.40), beta‐blockers (OR 1.39, 95% CI 1.32–1.47), renin–angiotensin system/angiotensin‐receptor‐neprilysin inhibitors (OR 1.21, 95% CI 1.15–1.27), and mineralocorticoid receptor antagonists (OR 1.31, 95% CI 1.26–1.37); and more severe HF, that is higher NT‐proBNP (OR 1.13, 95% CI 1.06–1.20) and NYHA class (OR 1.13, 95% CI 1.08–1.19). Factors associated with lower likelihood of follow‐up in specialty care included older age (OR 0.29, 95% CI 0.28–0.30), female sex (OR 0.89, 95% CI 0.86–0.93), lower income (OR 0.79, 95% CI 0.76–0.82) and educational level (OR 0.77, 95% CI 0.73–0.81), higher EF [HFmrEF (OR 0.65, 95% CI 0.62–0.68) and HFpEF (OR 0.56, 95% CI 0.53–0.58) vs. HFrEF], and higher comorbidity burden, such as presence of kidney disease (OR 0.91, 95% CI 0.87–0.95), atrial fibrillation (OR 0.85, 95% CI 0.81–0.89), and diabetes mellitus (OR 0.92, 95% CI 0.88–0.96). A planned follow‐up in specialty care was independently associated with lower risk of all‐cause [hazard ratio (HR) 0.78, 95% CI 0.76–0.80] and cardiovascular death (HR 0.76, 95% CI 0.73–0.78) across the EF spectrum, but not of HF hospitalization (HR 1.06, 95% CI 1.03–1.10).ConclusionsIn a large nationwide HF population, referral to specialty care was linked with male sex, younger age, lower EF, lower comorbidity burden, better socioeconomic environment and optimized HF care, and associated with better survival across the EF spectrum. Our findings highlight the need for greater and more equal access to HF specialty care and improved quality of primary care.
Multi‐fuel performance and emission characteristics of an optimized thermal barrier coated diesel engine
Authors: Sankar Vishnu , Thampi B.S. Gireeshkumaran , Panicker M.R. Radhakrishna , Ramachandran Manoj 
Published: February 2022

AbstractOwing to the depletion of world oil reserves and increased environmental issues, engine modifications amid alternative fuels to improve performance are alluring a lot of attention nowadays. More than half of the total energy generated in the internal combustion engines are dissipated from the system through frictional losses, engine part cooling, exhaust, etc. The minimisation of these energy losses through heat transfer can improve the engine performance to an extent. The finest alternative for minimizing the energy losses through heat dissipations from the engine is with the use of thermal barrier coated (TBC) combustion chambers. In this paper optimum working condition of a single cylinder Kirloskar diesel engine with a ceramic thermal barrier coating (Yttria‐stabilized zirconia) on the piston was determined using Design of Experiments (DOE) software and predictions were validated experimentally. Further the multi‐fuel performance of a diesel engine with ceramic coated piston was also analyzed. The fuels used were diesel, pure biodiesel and optimized biodiesel blend B20. The optimum working condition was determined by using central composite design method in Design Expert‐7 software. The B20 fuel with TBC engine resulted to the maximum efficiency. Further it was validated experimentally by performing experiment at rated revolutions per minute (RPM) in a Kirloskar made single cylinder direct injection computerized diesel engine. Eventually a mathematical equation for the relationship between brake power, brake specific fuel consumption and brake thermal efficiency was derived using DOE software.