bluuebunny/crossref_metadata_2025_split huggingface dataset:
A novel Himachal’s Bagar (Sabai) grass fiber used as a brake friction material in brake polymer composite and compared to standard brake friction material
Authors: Kumar Naresh , Grewal J. S. , Kumar Sushil , Ali Sarafat , Kumar Nitin 
Published: November 2021

AbstractOrganic fibers are utilized these days in many applications because of their great mechanical properties. Organic fibers have replaced the synthetic fibers in various places. Previous research articles have told the potential of natural fiber reinforcement as a brake friction material, but there are very few research articles of comparative study of standard brake friction materials and natural fibers. So in this research paper, a unique Sabai grass fiber was used as a brake friction material to develop new samples of brake pads and compare with standard Kevlar‐based composites. The brake pads were formed by utilizing the different percentages of Kevlar fiber (standard material) (5%–10%) and Sabai grass fibers (5%–20%) in the hydraulic brake producing machine. The fundamental point of this investigation is to track down the substitute of asbestos and Kevlar in brake material. The outcomes of physico‐mechanical properties revealed that percentage of porosity, percentage of water retention, percentage of compressibility increments as augmentation the level of Sabai grass fiber and Kevlar fiber in the polymer composite while Ash, hardness and density diminishes with increment level of Sabai grass fiber and Kevlar fiber in the composite. The Sabai grass based composites with 5 wt% have shown improved outcomes for (μ) coefficient of friction, % fade and for wear among all organic fiber composites while the results in terms of wear and recovery were seen to increment with increment level of Sabai grass fiber. In relative examination it has been determined that Kevlar based Brake pad specimen showed minimal better outcomes in % fade, (μ) coefficient of friction and wear than that of Sabai grass fiber composites. The mechanical properties of sabai grass fiber and Kevlar‐based composites have shown nearby results. The wear rate and thermal stability were verified most elevated for 20% Sabai grass composites and 10% Kevlar mixture.
Comparative metabolomics analysis revealed biomarkers and distinct flavonoid biosynthesis regulation in Chrysanthemum mongolicum and C. rhombifolium
Authors: Duan Xiaxia , Zhang Wenjie , Li Jingjing , Xu Hongyuan , Hu Jing , Zhao Liang , Ma Yueping 
Published: November 2021

AbstractIntroductionChrysanthemums are traditional flowers that originated in China and have high ornamental, economic and medicinal value. They are widely used as herbal remedies and consumed as food or beverages in folk medicine. However, little is known about their metabolic composition.ObjectivesThe aims of this work were to determine the metabolic composition of and natural variation among different species of Chrysanthemum and to explore new potential resources for drug discovery and sustainable utilisation of wild Chrysanthemum.MethodsThe metabolomes of Chrysanthemum mongolicum (Ling) Tzvel. and Chrysanthemum rhombifolium H. Ohashi & Yonek. were compared using a widely targeted metabolomics approach based on liquid chromatography–tandem mass spectrometry (LC–MS/MS).ResultsIn total, 477 metabolites were identified, of which 72 showed significant differences in expression between C. mongolicum and C. rhombifolium, mainly in flavonoids, organic acids and nucleotides. The flavone and flavonol biosynthesis pathway showed significant enrichment among the differentially expressed metabolites. The contents of genkwanin, trigonelline, diosmin, narcissoside, 3,4‐dihydroxyphenylacetic acid, linarin, N′,N′‐p‐coumarin, C‐hexosyl‐tricetin O‐pentoside, chrysoeriol, acacetin and kaempferol‐3‐O‐gentiobioside were significantly different between the two species and represent potential biomarkers.ConclusionThe types of flavonoid‐related metabolites in the flavonoid biosynthesis pathway differed between C. mongolicum and C. rhombifolium. The mechanisms underlying the unique adaptations of these two species to their environments may involve variations in the composition and abundance of flavonoids, organic acids, and nucleotides. These methods are promising to identify functional compounds in Chrysanthemum species and can provide potential resources for drug discovery and the sustainable utilisation of Chrysanthemum plants.
Polysilicon contact structures for silicon solar cells using atomic layer deposited oxides and nitrides as ultra‐thin dielectric interlayers
Authors: Reichel Christian , Feldmann Frank , Richter Armin , Benick Jan , Hermle Martin , Glunz Stefan W. 
Published: November 2021

AbstractPolysilicon contact structures with ultra‐thin atomic layer deposited (ALD) oxide and nitride interlayers based on SiOx, SiNx, AlOx, AlNx, and TiOx either as part of an interlayer stack when applied on top of a conventional thermally‐grown SiOx or as a single interlayer were investigated. ALD SiOx single interlayers provided a very good passivation quality with high implied open‐circuit voltage and low‐specific contact resistivity when an optimal thickness and annealing temperature was applied. Also, ALD SiNx single interlayers showed a promising passivation quality, while AlOx and AlNx interlayers only allowed for a moderate and TiOx interlayers exhibited a very poor passivation quality. ALD SiOx interlayers on planar and textured silicon solar cells with poly‐Si(p) hole‐selective contacts and poly‐Si(n) electron‐selective contacts enabled a conversion efficiency of almost 21% as a proof‐of‐concept. These results are comparable with silicon solar cells with conventional thermally‐grown SiOx, showing that ALD SiOx interlayers are an alternative to conventional thermally‐grown SiOx in polysilicon contacts structures.
African‐centered coping, resilience, and psychological distress in Black prostate cancer patients
Authors: Martin Chloé M. , Schofield Elizabeth , Napolitano Stephanie , Avildsen Isabelle K. , Emanu Jessica C. , Tutino Rebecca , Roth Andrew J. , Nelson Christian J. 
Published: November 2021

AbstractObjectiveBlacks have the highest incidence and mortality rates for prostate cancer (PCa) in the U.S. Black PCa patients (PCaP) also report high psychological distress. Identifying culturally specific coping strategies that lower distress among Black PCaP could help improve psychological interventions for this group. African‐centered coping (strategies unique to the structure of Black personality and the African‐centered worldview) have been identified. We hypothesized that these coping strategies and resilience would be associated with lower psychological distress (anxiety and depression) in Black PCaP.MethodsBlack PCaP (N = 95) completed a survey assessing African‐centered coping strategies, resilience, anxiety, and depression. Multiple regression was employed to examine African‐centered coping strategies and resilience as predictors of psychological distress.ResultsParticipants were aged M = 67 ± 9 years and 52% had late‐stage PCa. Twenty percent met criteria for clinically significant anxiety, and 17% for depression. African‐centered coping strategies were not associated with lower anxiety or depression, while resilience was associated with decreased anxiety (r = −0.45, p < 0.001) and depression (r = −0.54, p < 0.001). Mediation analyses did not support an indirect association among African‐centered coping strategies, resilience, and anxiety and depression.ConclusionsContrary to hypotheses, African‐centered coping strategies were not associated with psychological distress. However, as predicted, greater resilience was associated with lower anxiety and depression. These findings support the relevancy of resilience in Blacks' psychological adjustment to PCa. It might be worthwhile to explore African‐centered coping strategies that help Black PCaP cope with distress.
Inspired by surimono: Integrating photography and poetry to bring plants into focus
Authors: Coe Robert , Lee Nicholas M. , Osbourn Anne 
Published: November 2021

Societal Impact StatementPlants are our sources of oxygen, food, medicines, clothing, building materials and fuels. They are part of our history, our trade and our imaginations. Here, we investigate the potential for integration of photographs and poetry to bring plants to life and let them tell their stories, inspired by the ancient Japanese woodprint artform, surimono. The resulting ‘photo surimono’ open up new opportunities to engage with the natural world at the juxtaposition of the written and the visual, to combat the cognitive bias of plant blindness and to introduce more connected ways of thinking about plants, people and sustainability into educational programmes.
Outlier robust identification of dual‐rate Hammerstein models in the presence of unmodeled dynamics
Authors: Filipovic Vojislav Z. 
Published: November 2021

AbstractThe article considers the outlier‐robust recursive least squares algorithm for identification of SISO (single‐input single‐output) dual‐rate Hammerstein model. The output sampling period is an integer multiple of the input sampling period. By using polynomial transformation technique we get a model which is suitable for parameter estimation for dual‐rate measurement data. After that deterministic dual‐rate Hammerstein model is extended with stochastic disturbance (which includes outliers) and unmodeled dynamics. Synthesis of identification algorithm is based on Newton–Raphson method which requires that loss function should be twice differentiable. Huber loss function, relevant for outliers treatment, has just first derivative. In order to overcome problem pseudo‐Huber loss function is introduced. This function behaves similarly to Huber loss function and has derivatives of arbitrary orders. Given recursive algorithm is based on synergy of Huber and pseudo‐Huber loss functions. Then we consider the robustness of algorithm. The main contributions of the article are: (i) determination of dual‐rate Hammerstein model which includes stochastic disturbance with outliers and unmodeled dynamics; (ii) derivation of robust recursive algorithm; (iii) determination of robustness for parameter estimate.
Robust output feedback model predictive control of time‐delayed systems using interval observers
Authors: Reis de Souza Alex , Efimov Denis , Raïssi Tarek 
Published: November 2021

AbstractThis work addresses the problem of robust output feedback model predictive control (MPC) of constrained, discrete‐time, time‐delayed linear systems subject to (bounded) additive disturbances. The proposed predictive controller incorporates an interval observer, that exploits the available measurement to update the set‐membership of the system states, and an interval predictor, used in the prediction step of the MPC. The proposed algorithm is similar to conventional MPC for linear systems, offering guarantees on recursive feasibility and robust constraint satisfaction, with low computational complexity. Furthermore, the delay is explicitly taken into account in the design, and the obtained scheme easily encompasses delays on the state, on the measurement or the control input.
Preparation and Characterization of SiC Fibers from PCS by Electrospinning, Curing and Calcination Process**
Authors: Hu Shao‐Hwa , Yuan Jiao‐Jiao , Wu Li‐Chun , Dai Hang , Ai Ya‐Zhao , Deng Ying‐Feng 
Published: November 2021

AbstractSilicon carbide (SiC) possesses unique properties and is widely applied in household and military uses. This study explored the manufacturing process of SiC fibers. In the experiment, polycarbosilane (PCS) was dissolved in a mixed solvent of C8H10 and dimethylformamide (DMF) to form a solution, and electrospinning was employed to synthesize PCS fibers. PCS fibers underwent a curing process and a 2 h calcination at 1200 °C in N2 atmosphere to convert PCS fibers into β‐SiC fibers. The solute recruitment, solvent mixing ratio, and voltage in the experiment were defined as process parameters through which to examine the influence each parameter had on electrospinning. The PCS fibers were discovered to exhibit the most even size under the following condition: PCS recruitment of 1.0 g/mL, DMF constituting 30 % of the solvent volume, voltage of 25 kV, spraying speed of 1.0 mL/h, and spinning distance of 15 cm. Under microscopy, the diameter of each PCS fiber was determined to be 1.0 μm, and the diameter of each β‐SiC fiber was 0.8 μm.
Glucose‐Induced Disintegrated Hydrogel for the Glucose‐Responsive Delivery of Insulin
Authors: Lu Yangyang , Yu Haojie , Wang Li , Shen Di , Liu Jian 
Published: November 2021

AbstractStimulus‐sensitive drug delivery materials are of vital significance to modern therapeutic technology. In particular, glucose‐responsive hydrogels capable of biomimetic release of hypoglycemic drugs according to glucose concentrations are one of the current research hotspots. In this paper, an injectable, glucose‐induced disintegrated natural‐polysaccharide‐based hydrogel with good self‐healing ability and biocompatibility is reported. The glucose‐responsiveness of the hydrogel stems from the reversible phenylborate ester bonds. The glucose‐triggered disintegration and insulin release are demonstrated in the hydrogel in a physiological environment. The two polymers produced by the disintegration of the hydrogel have good biocompatibility and biodegradability. Therefore, the hydrogel is considered to result in the development of smart insulin delivery systems.
Hydroisomerization with a Hierarchical SAPO‐11 Supported Ni Catalyst: Effect of DTAB Content[]**
Authors: Chen Zhiping , Liu Li , Shi Faxiang , Zhou Wenwu , Yang Zhiyuan , Zhou Anning 
Published: November 2021

AbstractIn order to explore the effect of the amount of mesoporous template on the physicochemical properties and hydroisomerization of the hierarchical SAPO‐11, a series of hierarchical SAPO‐11 were synthesized by adding different amounts of dodecyl trimethyl ammonium bromide(DTAB) as mesopore structure directing agent. The synthesized hierarchical SAPO‐11 were characterized by XRD, N2 adsorption‐desorption, SEM, TEM, NH3‐TPD and Py‐FTIR. The results showed that the addition amount of DTAB had a significant effect on the crystallinity, the specific surface area, the pore volume and acid sites of the synthesized hierarchical SAPO‐11. The hydroisomerization of the hierarchical SAPO‐11 was evaluated with 1‐octene as a probe after loading propriate amount of Ni. The results showed that with the increase in the DTAB content, the selectivity of mono‐branched isomers increases rapidly at first and then tends to be flat. The selectivity of the di‐branched isomers increased first and then decreased, this shows that choosing an appropriate amount of DTAB is very important to improve the hydroisomerization selectivity of the hierarchical Ni/SAPO‐11 catalyst.
Aromatization of Commercial Full Range Naphtha Over Modified Hierarchical ZSM‐5 Catalyst
Authors: Ummer Aniz Chennampilly , Akhtar Muhammad Naseem , Alnaimi Essa , Ding Lianhui , Alasiri Hassan Saeed 
Published: November 2021

AbstractAromatization of commercial full range naphtha has been studied in a fixed bed reactor using the synthesized hierarchical zeolite catalysts. Desilication was carried out on H‐ZSM‐5 support with Silica to Alumina (SiO2/Al2O3) molar ratio 30 to generate additional meso‐porosity and active metal Gallium was incorporated by wetness impregnation method. Various concentrations of sodium hydroxide solutions and two different initial calcination temperature were used during the modification to understand the effect of these parameters on the catalysts. All the catalysts were characterized using nitrogen adsorption, X‐ray diffraction, temperature programmed ammonia desorption, elemental and surface imaging techniques. Catalytic evaluation is done in a fixed bed reactor operated at a temperature of 550 °C, atmospheric pressure and liquid hourly space velocity of 6.0 h−1. Product streams from the fixed bed reactor are analyzed using both online and offline gas chromatographs using ASTM D7833 and D6729 respectively to report product selectivity and mass balance. It is observed that the additional meso porosity and the retention of crystallite phase lead to 62.4 % enhancement in aromatic selectivity and 52.2 % decrease in off‐gas generation for the developed catalyst compared to its non‐desilicated analogue during the aromatization process of full range real naphtha.
Thiosemicarbazide‐Linked Covalent Organic Framework: Preparation, Properties and Applications
Authors: Wang Heping , He Tengteng , Quan Dandan , Wang Tong , Li Cong , Shen Yehua 
Published: November 2021

AbstractWith the unique advantages in structure and property, covalent organic frameworks have been widely employed for separation and enrichment. In this work, the thiosemicarbazide‐linked covalent organic framework (TpTc) was prepared by using 1,3,5‐triformylphloroglucinol and non‐rigid thiosemicarbazide as building blocks for the first time. The as‐prepared TpTc COF was fully characterized, presenting an agaric‐like structure, large specific surface area (63.5 m2 g−1), uniform pore size distribution (1.36 nm), inherent porosity and ordered crystallinity. The potential of TpTc as adsorbent for metal ions capture was investigated by static batch adsorption experiment using the one‐factor procedure. The maximum adsorption capacities of 73.50, 56.53 and 94.13 mg g−1 were obtained for Cu (II), Pb (II) and Cd (II) at natural pH, respectively. The anchoring of three metal ions onto TpTc is a multi‐layer sorption involving chemical adsorption, and obeys the Freundlich and pseudo‐second‐order model. According to XPS analysis, the adsorption mechanism may be attributed to the coordination and electrostatic interaction between metal ions and N, O and S atoms on TpTc COF. This work not only provides a candidate for the application of COFs in metal ions capture, but also a reference for exploring functional design of COFs.
An Update on Pharmacological Relevance and Chemical Synthesis of Natural Products and Derivatives with Anti SARS‐CoV‐2 Activity
Authors: Shagufta  , Ahmad Irshad 
Published: November 2021

AbstractNatural products recognized traditionally as a vital source of active constituents in pharmacotherapy. The COVID‐19 infection caused by severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) is highly transmissible, pathogenic, and considered an ongoing global health emergency. The emergence of COVID‐19 globally and the lack of adequate treatment brought attention towards herbal medicines, and scientists across the globe instigated the search for novel drugs from medicinal plants and natural products to tackle this deadly virus. The natural products rich in scaffold diversity and structural complexity are an excellent source for antiviral drug discovery. Recently the investigation of several natural products and their synthetic derivatives resulted in the identification of promising anti SARS‐CoV‐2 agents. This review article will highlight the pharmacological relevance and chemical synthesis of the recently discovered natural product and their synthetic analogs as SARS‐CoV‐2 inhibitors. The summarized information will pave the path for the natural product‐based drug discovery of safe and potent antiviral agents, particularly against SARS‐CoV‐2.
Ulnar neuropathy: A postoperative complication following placement of a humeral transcondylar screw in a dog
Authors: Condon Anna , Keeley Ben , Beaumont Georgina Lauren 
Published: November 2021

AbstractA 4‐year‐old neutered male English springer spaniel was examined because of postoperative allodynia and non‐weight bearing right thoracic limb lameness following bilateral humeral transcondylar screw placement to manage humeral intracondylar fissure. Clinical examination demonstrated signs attributable to ulnar neuropathy. Ulnar nerve block resulted in temporary resolution of clinical signs and confirmed the diagnosis. Multi‐modal analgesia resulted in the resolution of clinical signs with all medication withdrawn by 3 months postoperatively. No recurrence was reported at a 6‐month follow‐up. To our knowledge, this is the first documented report of ulnar neuropathy following humeral transcondylar screw placement in a dog.
Urinary bladder duplication in coronal plane in a dog
Authors: Gomes Diana , Puig Jordi , Vizcaíno Núria , Domínguez Elisabet , Feo Luis 
Published: November 2021

AbstractAn 8‐year‐old female intact Yorkshire terrier was presented with a 1‐year recurrent urinary tract infection. Abdominal ultrasound, computed tomography, positive contrast retrograde urethrography and cystoscopy were performed, revealing a tubular structure continuous with the ventral wall of the bladder connected with the urethra by an ostium ventral to the internal urethral orifice. Excision of the tubular structure was performed. Histopathological results were consistent with urinary bladder tissue. One year after surgery no clinical signs were reported. To the authors’ knowledge, this is the first report of urinary bladder duplication in the coronal plane with a single urethra in a dog.
Capture Rate Declines of Northern Myotis in the Canadian Maritimes
Authors: Balzer Evan W. , Grottoli Adam D. , Phinney Lori J. , Burns Lynne E. , Vanderwolf Karen J. , Broders Hugh G. 
Published: November 2021

ABSTRACTThe disease white‐nose syndrome (WNS) has caused widespread decline of North American bat species. Species like little brown myotis (Myotis lucifugus) have received more attention than others, such as northern myotis (Myotis septentrionalis). We were concerned that management decisions based on the demographic condition of little brown myotis may be inappropriate for northern myotis due to the potential for variation in species‐specific responses to WNS. We therefore compiled capture data from Canada's Maritime provinces collected between 2003 and 2019 to identify if disparate population trends exist between the 2 species. We identified a decline in northern myotis capture‐per‐unit‐effort (CPUE) after the detection of WNS (hereafter, post‐WNS), in each study region and a divergence from the historic CPUE ratio between the 2 species. Whereas 380 northern myotis were captured pre‐WNS, only 4 were captured post‐WNS. The pre‐WNS ratio of northern myotis to little brown myotis CPUE in New Brunswick, Prince Edward Island, and Nova Scotia declined from 0.541, 0.273, and 0.291 to 0.046, 0, and 0 respectively, post‐WNS. Our results indicate that northern myotis populations in the Maritimes have experienced a serious decline. Standardized and systematic capture surveys should be conducted at summer roosting areas and swarming sites in combination with counts in hibernacula to clarify the current distribution, population size, and resource selection patterns of northern myotis. © 2021 The Wildlife Society.
Root patterns and energy spectra of quantum integrable systems without U(1) symmetry: the antiperiodic XXZ spin chain
Authors: Le Xiong , Qiao Yi , Cao Junpeng , Yang Wen-Li , Shi Kangjie , Wang Yupeng 
Published: November 2021

Abstract
Finding out root patterns of quantum integrable models is an important step to study their physical properties in the thermodynamic limit. Especially for models without U(1) symmetry, their spectra are usually given by inhomogeneous T − Q relations and the Bethe root patterns are still unclear. In this paper with the antiperiodic XXZ spin chain as an example, an analytic method to derive both the Bethe root patterns and the transfer-matrix root patterns in the thermodynamic limit is proposed. Based on them the ground state energy and elementary excitations in the gapped regime are derived. The present method provides an universal procedure to compute physical properties of quantum integrable models in the thermodynamic limit.