bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evolution of the quality and sensory characteristics of extra virgin olive oil as affected by phenolic content during long‐time storage at room temperature
Authors: Averbuch Natália Cristina , Silva Lucas Tolio , Cavalcante Luana Souza , Machado Isabel Cristina Kasper , dos Santos Sara Oberlaender , Nogueira Júlia Leão , Scheid Camila , Merib Josias , Garavaglia Juliano 
Published: May 2023

AbstractBackgroundExtra Virgin olive oils are directly obtained from olives and their quality is influenced by the oxidative process during storage as consequence the category may be penalized. Sensory attributes are crucial parameter of olive oils quality and classifications. This study evaluated the main sensorial and volatile profile of three olive oils with high medium and low content of initial total phenolic compounds (from ‘Koroneiki’ Blend of varieties and ‘Arbequina’ respectively) including quality parameters up to 15 months of storage.ResultsA significant increase of peroxide index value (around 50%) and reduction of phenolic compounds level (around 60%) were observed. The sensory attributes of sweet herbaceous almond and fruity notes decreased and the majority of volatile compounds found in all olive oils were (E)‐2‐hexenal (Z)‐3‐hexen‐1‐ol 1‐penten‐3‐one and hexanal even after 15 months. The reductions of different parameters are related to initial phenolic level and samples are classified as Virgin after seven (low phenolics) nine (medium phenolics) and 11 (high phenolics) months displaying defect of rancid in distinct intensities.ConclusionsThis investigation provided detailed about Brazilian olive oils useful in a global context moreover modifications of sensory and volatile compounds profile and its evolution according to the long‐time storage were established.
Averrhoa carambola L. fruit polyphenols ameliorate hyperlipidemia, hepatic steatosis, and hyperglycemia by modulating lipid and glucose metabolism in mice with obesity
Authors: Song Haizhao , Zhang Yanhui , Huang Qianqian , Deng Rou , Zheng Xiaodong 
Published: May 2023

AbstractBACKGROUNDHyperlipidemia, hepatic steatosis, and hyperglycemia are common metabolic complications of obesity. The objective of the present study is to investigate the in vivo protective effect of Averrhoa carambola L. fruit polyphenols (ACFP) on hyperlipidemia, hepatic steatosis, and hyperglycemia in mice with high‐fat diet (HFD)‐induced obesity and elucidate the mechanisms of action underlying the beneficial effects of ACFP. Thirty‐six specific pathogen‐free male C57BL/6J mice (4 weeks old, weighing 17.1–19.9 g) were randomly divided into three groups and fed with a low‐fat diet (LFD, 10% fat energy), HFD (45% fat energy), or HFD supplemented with ACFP by intragastric administration for 14 weeks. Obesity‐related biochemical indexes and hepatic gene expression levels were determined. The statistical analyses were conducted using one‐way analysis of variance (ANOVA) followed by Duncan's multiple range test.RESULTSThe results showed that the body weight gain, serum triglycerides, total cholesterol, glucose, insulin resistance index, and steatosis grade in the ACFP group decreased by 29.57%, 26.25%, 27.4%, 19.6%, 40.32%, and 40%, respectively, compared to the HFD group. Gene expression analysis indicated that ACFP treatment improved the gene expression profiles involved in lipid and glucose metabolism compared to the HFD group.CONCLUSIONACFP protected from HFD‐induced obesity and obesity‐associated hyperlipidemia, hepatic steatosis, and hyperglycemia by improving lipid and glucose metabolism in mice. © 2023 Society of Chemical Industry.
Abdominal wall reconstruction with the free functional L‐shaped latissimus dorsi flap: A case report
Authors: Brunetti Beniamino , Salzillo Rosa , Tenna Stefania , Petrucci Valeria , Morelli Coppola Marco , Valeri Sergio , Persichetti Paolo 
Published: May 2023

AbstractExtensive tridimensional defects of the abdominal wall are usually addressed with soft tissue flaps combined with meshes. In this scenario, the additional value of dynamic abdominal wall reconstruction with functional flaps has yet to be demonstrated. In this paper the authors describe for the first time a unique case of total abdominal wall reconstruction with the free functional L‐shaped latissimus dorsi (LD) flap, designed to increase the surface area of skin flap coverage while minimizing donor site morbidity, highlighting technical tips and long‐term outcomes. A 65‐year‐old patient underwent abdominal wall resection for a dermatofibrosarcoma protuberans, leaving her with a 23 × 15 cm full‐thickness defect. After placing a mesh, a myo‐cutaneous free LD Flap with an L‐shaped configuration was planned. The flap was composed of Paddle A, designed vertically along the anterior margin of the muscle and Paddle B, designed over the inferior aspect of the LD muscle, extending obliquely from the midline and intersecting Paddle A laterally with a 60° angle. End‐to‐end anastomoses to the deep inferior epigastric artery and vein and thoracodorsal nerve coaptation to a sizeable intercostal nerve were performed. The LD muscle was sutured according to its native tension while the two skin islands allowed an almost complete resurfacing of the abdominal wall defect. Donor site was closed primarily. Post‐operative course was uneventful. One year postoperatively, good abdominal contour was observed, with adequate abdominal tone at rest in laying and standing position. Muscle neurotization was confirmed with clinical examination showing voluntary contraction of the transplanted muscle and the patient reported very high functional outcomes at the hernia‐related quality‐of‐life (HerQles) questionnaire. The free L‐shaped LD flap represents an innovative solution to reconstruct extensive full‐thickness defects of the abdominal wall while reducing donor site morbidity. Flap neurotization should be attempted whenever possible to improve functional outcomes of the procedure.
A broadband dual‐polarized antenna with filtering function for base stations
Authors: Ma Chang , Yang Dong , Zhai Huiqing , Song Liwei , Zhao Zhipeng , Liu Changyuan 
Published: May 2023

AbstractIn this paper, a broadband dipole antenna with filtering function is proposed. The proposed antenna as a whole comprises a reflector, coaxial cables, a main radiator, and a cross‐center structure. First, two orthogonal dipoles are used as the main radiator and form dual‐polarization. By adding Y‐shaped branches and a cross‐center structure, the base station antenna realizes the filtering function and expands bandwidth. The antenna has filtering function on both sides of the operating frequency band, and the out‐of‐band radiation suppression can be 16 dB at the upper band. The radiation null can be controlled independently by the additional structure. And the parasitic structure has little effect on the realized gain in the operating frequency band. The measurement results show that the relative operating bandwidth of the proposed antenna exceeds 54%, and the isolation between ports is greater than 27 dB. In the operating frequency band, the realized gain is relatively flat, and the HPBW is in the range of 67.3° ± 2.6°.
Gain enhancement for low‐profile broadband dual‐polarized magnetoelectric dipole using impedance surface walls
Authors: Wang Buyun , Zhang Jiahao , Yan Sen 
Published: May 2023

AbstractA broadband dual‐polarized magnetoelectric (ME) dipole is proposed with gain enhancement by impedance surface walls (ISWs). The proposed antenna has a dimension of 140 × 140 × 45 mm3 (0.4 × 0.4 × 0.12 λ3) and operates from 0.87 to 3.0 GHz (110%), which can be applied on the on board UWB communications. The ISWs are designed for the band from 2.6 to 3.0 GHz to counter the high‐mode radiated waves of the ME dipole while maintaining the size of the antenna. The proposed antenna is fabricated and measured, and there is a good agreement between the simulated results and the measured ones. Compared to the antenna without ISWs, the gains of the proposed design are enhanced at 4.5 dBi at 2.6 GHz and 3 dBi at 3.0 GHz.
Fabrication of continuous carbon fiber reinforced polypropylene composites by injection compression molding with self‐resistance electric heating
Authors: He Qingzhu , Jiang Bailong , Zhai Zhanyu , Hao Changqian 
Published: May 2023

AbstractInjection compression molding technique with self‐resistance electric heating provides an effective way to fabricate continuous carbon fiber reinforced thermoplastics (cCFRTs) components, but it may also have a significant impact on the properties of the components by inducing undesirable effects. It is necessary to understand the manufacturing process and minimize the introduction of undesirable factors. Thus, this work is to investigate the influence of process parameters (i.e., melt temperature, current intensity, holding pressure, and holding time) on the impregnation quality and mechanical properties of cCFRTs. The results show that fiber fabrics cannot be uniformly distributed in all cCFRTs, resulting in a thick polymer layer on the top of all cCFRTs. Moreover, the fiber distribution shows insensitive to the processing parameters. The increase of melt temperature, the decrease of current intensity and the extension of holding time are conducive to reduce void content and the frequency of macro void; While excessive holding pressure cannot reduce void content due to serious overflow of resin. Meanwhile, the effect of processing parameters on the mechanical properties and fracture morphology of the sample was also determined. The findings show that the flexural strength of the sample is 106.7 ± 0.8 MPa using the optimal processing parameters.
Development of convergent hybrid phase ligation for efficient and convenient total synthesis of proteins
Authors: Hong Ziyong Z. , Yu Ruixuan R. , Zhang Xiaoyu , Webb Allison M. , Burge Nathaniel L. , Poirier Michael G. , Ottesen Jennifer J. 
Published: May 2023

AbstractSimple and efficient total synthesis of homogeneous and chemically modified protein samples remains a significant challenge. Here, we report development of a convergent hybrid phase native chemical ligation (CHP‐NCL) strategy for facile preparation of proteins. In this strategy, proteins are split into ~100‐residue blocks, and each block is assembled on solid support from synthetically accessible peptide fragments before ligated together into full‐length protein in solution. With the new method, we increase the yield of CENP‐A synthesis by 2.5‐fold compared to the previous hybrid phase ligation approach. We further extend the new strategy to the total chemical synthesis of 212‐residue linker histone H1.2 in unmodified, phosphorylated, and citrullinated forms, each from eight peptide segments with only one single purification. We demonstrate that fully synthetic H1.2 replicates the binding interactions of linker histones to intact mononucleosomes, as a proxy for the essential function of linker histones in the formation and regulation of higher order chromatin structure.
Symmetries, Conservation and Dissipation in Time‐Dependent Contact Systems
Authors: Gaset Jordi , López‐Gordón Asier , Rivas Xavier 
Published: May 2023

AbstractIn contact Hamiltonian systems, the so‐called dissipated quantities are akin to conserved quantities in classical Hamiltonian systems. In this article, a Noether's theorem for non‐autonomous contact Hamiltonian systems is proved, characterizing a class of symmetries which are in bijection with dissipated quantities. Other classes of symmetries which preserve (up to a conformal factor) additional structures, such as the contact form or the Hamiltonian function, are also studied. Furthermore, making use of the geometric structures of the extended tangent bundle, additional classes of symmetries for time‐dependent contact Lagrangian systems are introduced. The results are illustrated with several examples. In particular, the two‐body problem with time‐dependent friction is presented, which could be interesting in celestial mechanics.
Toxoplasma gondii among pregnant women attending antenatal care in a district hospital in Ghana
Authors: Addo Seth Offei , Asare Thelma Ohene , Arthur Christina , Amoateng Kenneth , Addo Kelvin , Larbi John Asiedu 
Published: May 2023

AbstractBackgroundToxoplasmosis is a zoonotic disease that is asymptomatic in many but can spread through the placenta during pregnancy causing miscarriage, stillbirth, intrauterine death, and neurologic impairments. This study reports on the proportion and risk factors associated with the seropositivity of Toxoplasma gondii among pregnant women visiting the antenatal care unit of the Nkawie‐Toase Government Hospital, Ghana.MethodsThis was a cross‐sectional study among pregnant women attending antenatal care at a district hospital in Ghana. The participants were selected randomly for the study. A structured questionnaire was used to collect information and data on possible risk factors associated with toxoplasmosis. Serum samples from the participants were screened for exposure to T. gondii using a commercial ELISA kit. The associations of the risk factors with seropositivity were tested using logistic regression.ResultsThere were 84 women who participated in this study. The mean age of the sample was 26.96 ± 5.67 years; 64.29% had basic education, 21.43% were traders and 14.29% were farmers. Forty‐seven women (55.95%) tested seropositive for T. gondii, 44 (52.38%) for IgG and 3 (3.57%) for IgM. Women involved as traders (OR 18, 95% CI 2.74–118.39, p = 0.003) and farmers (OR 6.75, 95% CI 1.16–39.20, p = 0.033) had significantly higher risk of testing seropositive.ConclusionHigh proportions of pregnant women in this study were found to be exposed to T. gondii. To prevent negative pregnancy outcomes, pregnant women attending antenatal care be educated and routinely screened for T. gondii infection.
The exponentially‐weighted control charts for geometrically moving averages
Authors: Maghsoodloo Saeed , Silva Daniel F. 
Published: May 2023

AbstractThis article is a sequel to the previous entitled “A Further Note on the Exponentially‐Weighted Moving Average Control Charts for Monitoring Gradual Shifts in a Process Mean” where the constant sample size n was equal to 1 in each subgroup. We have now generalized the results of the previous article first to the case of constant sample size n > 1 in each subgroup, and then to varying sample sizes; although, the average run length for the most general case of varying sample sizes is a weighted approximation. In our Section 2, we are proposing an estimator of process standard deviation (STD) σX that is more accurate than all previously available in statistical literature only if the targeted average, μ0, is the required standard process mean.
Isomorphous and Isostructural Coordination Polymers Besides Metal‐Organic Frameworks (MOFs) of bis(4‐Nitrophenyl)‐phosphoric Acid in Conjunction with Some N‐donor Compounds
Authors: Kumari Pattnaik Archana , Rao Pedireddi Venkateswara 
Published: May 2023

AbstractVarious coordination complexes, in the form of infinite coordination polymers and metal‐organic frameworks (MOFs) of an organophosphorous acid, bis(4‐nitrophenyl)phosphoric acid (BNPP), in the presence of some N‐donor compounds like 4,4′‐bipyridine (bpy), 1,2‐bis(4‐pyridyl)ethene (bpyee), 1,2‐bis(4‐pyridyl)ethane (bpyea) and 1,3‐bis(4‐pyridyl)propane (bpypa) along with metal ions, Co+2, Cd+2, Cu+2, and Ni+2, have been reported. Using the single crystal X‐ray diffraction method, the obtained structures are classified into isomorphous, isostructural coordination polymers, and metal‐organic framework structures. Except for the structures, formed by bpy with Ni(II) and Cu(II), bpypa with Cu(II) and bpyee with Co(II) and Ni(II), all of the complexes crystallize with both BNPP and N‐donor ligands forming coordinate bonds with the metal ions, yielding dumbbell‐shaped moieties in the lattices. A noteworthy feature in the structures obtained with bpyee, is that BNPP molecules do not form coordination bonds with metal ions Co(II) and Ni(II), while N‐donor ligands (bpyee) are only connected to the metal ions. Furthermore, in these complexes, the BNPP molecules occupy the same positions in the crystal lattice as those of coordinated BNPP moieties, but by hydrogen bonds, thus, establishing a high correlation of isostructurality in three‐dimensional packing between structures having coordinated and uncoordinated BNPP molecules, and highlighting the significance of hydrogen bonds in comparison with coordinated bonds. All of the complexes described, herein, are stabilized by different types of intermolecular interactions, specifically through a large number of C−H⋅⋅⋅O hydrogen bonds. Hirshfeld analysis further demonstrates surface properties and establishes accountability of various intermolecular interactions towards the stabilization of the complexes, emphasising, in particular, the importance of the C−H⋅⋅⋅O hydrogen bonds
Design and Synthesis of Imine Derivatives: DFT, Molecular Docking and Antimicrobial Analysis
Authors: Kumari Beauty , Ahmad Khursheed 
Published: May 2023

AbstractFifteen imine compounds were synthesized from the condensation of (Z)‐3‐(4‐bromophenyl)‐3‐(5‐methyl‐2‐thioxo‐1,3,4‐thiadiazol‐3(2H)‐yl) acrylaldehyde and various derivatives of primary amine, and their crystal structure was validated by single‐crystal XRD. Hirshfeld surface studies comprehensively explore intermolecular interactions in crystal packing. A state‐of‐the‐art dual computational strategy using quantum chemistry and molecular docking methodologies illuminates the molecular structure, electronic characteristics, and bioactivity of synthesized imines. Optimized and experimental molecule geometries were compared. By the agar well diffusion method, the synthesized imines were tested for antibacterial and antifungal activity against E. Coli, S. Aureus, A. Niger, and C. Albicans respectively. Based on their biofunctions synthesized imine derivatives were tested for their ability to inhibit E. Coli, C. Albicans, and ACE2. We observed that imine interaction energy values were excellent. We anticipate the current combination study using experiments and computational tools will attract the scientific community and inspire further in vitro and in vivo research.
3D‐Printed Hydrogels and Aerogels for Water Treatment and Energy Storage Applications
Authors: Gusain Rashi , Kumar Neeraj , Ray Suprakas Sinha 
Published: May 2023

AbstractRecently, three‐dimensional (3D) printing has become a research focus point and has evolved as a powerful tool for manufacturing complex objects for advanced technology platform designs. Herein, we review the current state‐of‐the‐art 3D‐printed hydrogels and aerogels for wastewater treatment and energy storage applications. Several 3D printing methods such as direct ink writing, digital light processing, and fused filament fabrication have been discussed. Among these, direct ink writing is the most employed 3D printing technique for hydrogels and aerogels. We systematically investigated the most important results of several 3D‐printed hydrogels and aerogels for adsorption, photocatalysis, membrane filtration, and desalination for wastewater treatment, supercapacitors, and batteries in energy storage applications. Finally, we conclude our understanding with the prospect of future opportunities in this field using 3D‐printed hydrogels and aerogels for wastewater treatment and energy storage applications. In summary, the fundamental knowledge of 3D printing and critical assessment of the key literature on 3D‐printed hydrogels and aerogels and their applications in water treatment and energy storage will provide guidance for future studies in smart materials and waste management aspects of sustainability.
Diversity of Rationally Modified Polysaccharides for Pharmaceutical Applications
Authors: Fatima Rabab , Sharma Mousmee , Prasher Parteek , Singh Sachin Kumar , Chellappan Dinesh Kumar , Kaur Indu Pal , Dua Kamal 
Published: May 2023

AbstractThe pressing need for the development of diversified and non‐toxic biomaterials in recent decades has led to the emergence of novel and valuable structural modifications in polysaccharides to broaden their spectrum of applications. Polysaccharides are macromolecules with multifaceted diverse structures and exhibit wide range of pharmacological and biological activities. Naturally occurring polysaccharides such as starch, chitosan, alginate, acetalated dextran and pectin could potentially negate major concerns associated with the selection of suitable polysaccharides without compromising their unique bioactive nature. Chemical modification of polysaccharides offers distinctive benefits such as improved biocompatibility, stability, solubility, and functionality making them more valuable for a variety of biomedical applications such as drug delivery, gene delivery, cell culture technology and tissue engineering. The present review is a compendium of relevant chemically modified polysaccharides and discusses their role in diverse fields of pharmacy and medicine.
Adverse childhood experiences and human immunodeficiency virus testing among adults with human immunodeficiency virus risk behaviours
Authors: Liu Jun , Guo Tingting , Han Baihui , Cheng Xiaowei , Qu Shifang , Wang Ruying , Dong Xinxin , Fang Jiaxin , Wang Jin , Tang Mengyao , Yao Yan , Jin Lina 
Published: May 2023

AbstractAdverse childhood experiences (ACEs) have been associated with poor HIV testing in adulthood yet, they have not been extensively described in those at increased risk for HIV. Cross‐sectional analysis data (n = 204,231) on ACEs and HIV testing were obtained from the 2019–2020 Behavioural Risk Factor Surveillance Survey. Weighted logistic regression models were used to access the association of ACEs exposure, ACEs score, and ACEs type with HIV testing among adults with HIV risk behaviours, and stratified analysis was also performed to examine gender differences. The results indicated the overall rate of HIV testing was 38.8% and was higher among those with HIV risk behaviours (64.6%) than those without (37.2%). In populations with HIV risk behaviours, the negative association of HIV testing with ACEs exposure, ACEs score, and ACEs type was identified. Relative to those without ACEs, adults who were exposed to ACEs might decrease the rate of HIV testing, participants with ≥4 ACEs scores were less likely to have HIV testing, and childhood exposure to sexual abuse had the greatest impact on HIV testing. For both males and females, childhood exposure to ACEs was associated with lower odds of HIV testing and ACEs score ≥4 had the most robust associations with HIV testing. For males, those who experienced witnessed domestic violence had the lowest odds of HIV testing but the odds of engaging in HIV testing for females were the lowest among those who experienced childhood sexual abuse.