bluuebunny/crossref_metadata_2025_split huggingface dataset:
Residual Effect of Sago Dregs Fertilizer to Okra (Abelmoschus esculentus) Growth and Yield in Planting Period II in Marginal Land
Authors: Hasid Rachmawati , Madiki Abdul , Rakian Tresjia Corina , Arma Makmur Jaya 
Published: June 2023

Aims: The research aimed to study the potential of sago dregs fertilizer residue in increasing the growth and yield of okra (Abelmoschus esculentus) in planting period II on marginal land.
Study Design: The research was conducted using a randomized block design with a single factor.
Place and Duration of Study: The research was conducted in Field Laboratory of Faculty of Agriculture, University of Halu Oleo, Kendari, Southeast Sulawesi, Indonesia. The study was conducted for four months.
Methodology: Single factor design in Randomized block design was used in the research. consists of 6 treatment levels of sago dregs fertilizer residue that have been applied in the previous planting period (planting period I), namely: without sago dregs (S0), using sago dregs 5 t ha-1 (S1), 10 t ha-1 (S2), 15 t ha-1 (S3), 20 t ha-1 (S4) and 25 t ha-1 (S5). Each treatment was placed in three groups so that there were 18 experimental units. The data was analyzed using analysis of variance and continued by Tukey Test 95% confidence level.
Results: The results generally showed that the sago dregs fertilizer residual had a significant effect on the growth and yield of Abelmoschus esculentus. The effectiveness of the residual effect of sago pulp organic fertilizer is 3.39% to 25.68% on the variable plant height, 12.77% to 24.07% on the variable stem diameter, 17.72% to 32.26% on the variable number of leaves, 23.84% to 53.03% on the variable area leaves, 24.06% to 39.15% in plant dry weight variable, 20.21% to 41.61% on the variable number of fruit and 14.46% to 34.21% on the variable weight of fruit. Strongly influenced by the dose of sago pulp organic fertilizer applied in growing season I.
Conclusion: Residual of sago dregs fertilizer potentially increasing of okra (Abelmoschus esculentus) growth and yield in planting period II in marginal land. The effectiveness highest was achieved in the treatment of 15 t ha-1 sago dregs organic fertilizer, for all of variables observed.
Morphometric Indices and Parasitic Incidence of Synodontis nigrita from Lower River Benue, Makurdi, Nigeria
Authors: Omeji S. , Jackson U. J. , Surma K. S. 
Published: June 2023

The study was carried out to determine the morphometric indices and parasitic incidence of 160 fresh samples of Synodontis nigrita comprising of 80 samples each of female and male sexes. Fish samples were obtained from the catches of local fishermen along Lower River Benue at Wadata fish landing site of Benue State. Length–weight relationship was analyzed using the equation W=aLb. The condition factor of the fish samples was determined using the equation, K=100W/L3. Samples of Synodontis nigrita were later subjected to parasitological examination using standard parasitological method. The mean total length, body weight, condition factor, regression and correlation coefficients were higher for un-infested female samples of Synodontis nigrita than the infested female. Similarly, the mean total length body weight, condition factor, regression and correlation coefficients of un-infested male samples of Synodontis nigrita were higher than the infested males. A total of three hundred and fifty seven (357) parasites were recovered from 76(47.50%) infested samples. Out of the 357 parasites, 251 were recovered from 49(61.3%) infested female samples, 106 parasites were recovered from 27(33.8%) infested male samples. Among the infested parts of the female samples, the intestine accounted for the highest number/percentage (116/46.4%) parasite load, the least 2(0.8%) was recorded for the skin. Between the external parts (gill and skin) of the female fish samples, while the gill recorded the higher number of parasite load 28(12.8%), skin recorded 2(0.8%). Similarly, among the infested parts of the male samples, the intestine accounted for the highest number/percentage (65/61.3%) parasite load, the least 9(8.5%) was recorded for the gill. Between the external parts (gill and skin), the gill recorded 9(8.5%) number/percentage parasite load, no parasite was recovered from the skin. Prevalence (61.25), number of parasites (251) and intensity (5.10) of parasite infection were higher for female samples compared to the male with the prevalence, and intensity of parasite infection of 33.80, 106 and 3.90, respectively. However, the chi square value showed that there was no significant difference (p>0.05) in the prevalence, number of parasites and intensity of parasite infection between the sexes of Synodontis nigrita. Variation in the prevalence and intensity of parasite infection of female and male Synodontis nigrita based on size groups existed. However, it was generally observed that longer and heavier sized fish of both sexes were more infested with higher number of parasites than the smaller sized samples of both sexes.
Influence of Biofertilizer and Phosphorus on Yield and Economics of Chickpea (Cicer arietinum L.)
Authors: Kumar Lokesh , Singh Rajesh , Indu Thakur 
Published: June 2023

The field experiment entitled “Influence of Biofertilizer and Phosphorus on Yield and Economics of Chickpea (Cicer arietinum L.)” was conducted during rabi season, 2022 at Crop Research Farm in the Department of agronomy, Naini Agriculture Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj Uttar Pradesh. The study included Biofertilizer Rhizobium, PSB and Rhizobium + PSB, and three levels of Phosphorus (20, 40 and 60 kg/ha) and control. The experiment was layout in Randomized Block Design (RBD) with 10 treatments and replicated thrice. The soil in the experimental area was sandy loam with pH (7.8), Organic Carbon (0.43%), Available N (181.58 kg/ha), Available P (15.45 kg/ha) and Available K (197.64 kg/ha). Application of (Rhizobium + PSB + Phosphorus 60 kg/ha) produces higher Seed yield (1537.20 kg/ha.), Stover yield (3195.12 kg/ha.), Gross Return (INR 97985/ha.), Net Return (INR 66560/ha.) and B:C Ratio (2.12).
Liberating the Electrolyte via In Situ Conversion of an Amide, Sulfonate‐Containing Monomer Precursor for High‐Temperature Graphite/NCM Batteries
Authors: Zheng Xueying , Cao Zhang , Luo Wei , Zhao Tong , Han Yan , Yang Hao , Liu Xuyang , Zhou Yu , Wen Jiayun , Shen Yue , Zheng Honghe , Huang Yunhui 
Published: June 2023

AbstractHigh‐temperature (HT) operation and storage performance of Li‐ion batteries (LIBs) are essential for applications in electric vehicles, grid storage, or defense missions. Unfortunately, severe capacity fading is witnessed due to growing instability of the electrode/electrolyte interphase at HT. Herein, the study liberates the electrolyte from the task of film‐formation. Instead, it takes advantage of the favorable solid‐electrolyte interphase (SEI)‐forming functional groups by priorly anchoring them on graphite surface. Specifically, via molecular design, unsaturated CC bond, together with amide and sulfonate groups, are concurrently involved, namely the lithium‐2‐acrylamido‐2‐methyl‐1‐propanesulfonate (Li‐AMPS). Upon electrochemical cycle, the unsaturated CC bond in Li‐AMPS turns into a radical that induces polymerization between CC bonds to construct a polymeric network. The presence of amide and sulfonate groups endows the SEI with nitrogen, sulfur‐based reduction products OSO2Li and Li3N, etc. As such, the designed interphase makes the use of propylene carbonate‐based electrolyte possible. By assembling full cells with the modified graphite and LiNi0.5Co0.2Mn0.3O2 (cathode loading of ≈18.5 mg cm−2), the capacity retention of the full cell has increased from 53.2% (with pristine graphite) to 77.8% after 300 cycles under 60 °C. A 2 Ah, 265 Wh kg−1 pouch cell is also able to operate for 200 cycles at an extreme temperature of 80 °C with the modified graphite.
Amorphization Boost Multi‐Ions Storage for High‐Performance Aqueous Batteries
Authors: Jin Bowen , Liu Yuanhui , Cui Junya , Zhang Shimeng , Wu Yu , Xu Annan , Xu Ming , Shao Mingfei 
Published: June 2023

AbstractRegarding the complex properties of various cations, the design of aqueous batteries that can simultaneously store multi‐ions with high capacity and satisfactory rate performance is a great challenge. Here an amorphization strategy to boost cation‐ion storage capacities of anode materials is reported. In monovalent (H+, Li+, K+), divalent (Mg2+, Ca2+, Zn2+) and even trivalent (Al3+) aqueous electrolytes, the capacity of the resulting amorphous MoOx is more than quadruple than that of crystalline MoOx and exceeds those of other reported multiple‐ion storage materials. Both experimental and theoretical calculations reveal the generation of ample active sites and isotropic ions in the amorphous phase, which accelerates cation migration within the electrode bulk. Amorphous MoOx can be coupled with multi‐ion storage cathodes to realize electrochemical energy storage devices with different carriers, promising high energy and power densities. The power density exceeded 15000 W kg−1, demonstrating the great potential of amorphous MoOx in advanced aqueous batteries.
Uniting Dual‐Modal MRI/Chemiluminescence Nanotheranostics: Spatially and Sensitively Self‐Reporting Photodynamic Therapy in Oral Cancer
Authors: Tao Yining , Yan Chenxu , Wu Yue , Li Dan , Li Juan , Xie Yuchen , Cheng Yingsheng , Xu Yisheng , Yang Kai , Zhu Wei‐Hong , Guo Zhiqian 
Published: June 2023

AbstractUnpredictable in vivo therapeutic feedback of reactive oxygen species (ROS) efficiency is the major bottleneck of photodynamic therapy (PDT). Herein, novel PDT‐based nanotheranostics Pa–Mn&CH‐A@P are elaborately constructed for in vivo tracking biodistribution and in situ self‐reporting PDT, which innovatively unites magnetic resonance imaging (MRI) and chemiluminescence (CL) signals. Taking advantages of the versatility of lanthanide coordination chemistry and flash nanoprecipitation (FNP) technology, photosensitizers, MRI, and CL agents are unprecedently integrated within a stable and uniform nanotheranostic. Specifically, MRI signal offers detailed dose distribution of nanotheranostics with high‐spatial resolution, and CL signal timely performs in situ evaluation of ROS generation with high sensitivity. This dual‐modal MRI/CL nanotheranostic makes a breakthrough in high fidelity feedback for oral tumor, conquering the inherent unpredictable obstacles on spatially and sensitively reporting PDT.
A Versatile Disorder‐to‐Order Technology to Upgrade Polymers into High‐Performance Bioinspired Materials
Authors: Liu Shengyang , He Shicheng , Chen Can , Li Chunwang , Luo Wei , Zheng Kaikai , Wang Jing , Li Zhiyong , He Hongyan , Chen Qiang , Li Yulin 
Published: June 2023

AbstractBiodegradable polymer as traditional material has been widely used in the medical and tissue engineering fields, but there is a great limitation as to its inferior mechanical performance for repairing load‐bearing tissues. Thus, it is highly desirable to develop a novel technology to fabricate high‐performance biodegradable polymers. Herein, inspired by the bone's superstructure, a versatile disorder‐to‐order technology (VDOT) is proposed to manufacture a high‐strength and high‐elastic modulus stereo‐composite self‐reinforced polymer fiber. The mean tensile strength (336.1 MPa) and elastic modulus (4.1 GPa) of the self‐reinforced polylactic acid (PLA) fiber are 5.2 and 2.1 times their counterparts of the traditional PLA fiber prepared by the existing spinning method. Moreover, the polymer fibers have the best ability of strength retention during degradation. Interestingly, the fiber tensile strength is even higher than those of bone (200 MPa) and some medical metals (e.g., Al and Mg). Based on all‐polymeric raw materials, the VDOT endows bioinspired polymers with improved strength, elastic modulus, and degradation‐controlled mechanical maintenance, making it a versatile update technology for the massive industrial production of high‐performance biomedical polymers.
Isotope Exchange Raman Spectroscopy (IERS): A Novel Technique to Probe Physicochemical Processes In Situ
Authors: Stangl Alexander , Pla Dolors , Pirovano Caroline , Chaix‐Pluchery Odette , Baiutti Federico , Chiabrera Francesco , Tarancón Albert , Jiménez Carmen , Mermoux Michel , Burriel Mónica 
Published: June 2023

AbstractA novel in situ methodology for the direct study of mass‐transport properties in oxides with spatial and unprecedented time resolution, based on Raman spectroscopy coupled to isothermal isotope exchanges, is developed. Changes in the isotope concentration, resulting in a Raman frequency shift, can be followed in real time, which is not accessible by conventional methods, enabling complementary insights for the study of ion‐transport properties of electrode and electrolyte materials for advanced solid‐state electrochemical devices. The proof of concept and strengths of isotope exchange Raman spectroscopy (IERS) is demonstrated by studying the oxygen isotope back‐exchange in gadolinium‐doped ceria (CGO) thin films. Resulting oxygen self‐diffusion and surface exchange coefficients are compared to conventional time‐of‐flight secondary‐ion mass spectrometry (ToF‐SIMS) characterization and literature values, showing good agreement, while at the same time providing additional insight, challenging established assumptions. IERS captivates through its rapidity, simple setup, non‐destructive nature, cost effectiveness, and versatile fields of application and thus can readily be integrated as new standard tool for in situ and operando characterization in many laboratories worldwide. The applicability of this method is expected to consolidate the understanding of elementary physicochemical processes and impact various emerging fields including solid oxide cells, battery research, and beyond.
Discovery and Engineering of an Ene‐reductase for Kinetic Resolution and Cascade Reduction of Hajos‐Parrish/Wieland‐Miescher Ketones
Authors: Li Dongyan , Dong He , Chen Xianwen , Li Yangyang , Xu Yiping , Wang Jing , Fang Jiali , Huang Chenming , Zhang Wenhe , Jia Xian , You Song , Qin Bin 
Published: June 2023

AbstractEne‐reductase (ERED)‐catalyzed asymmetric reduction of α,β‐unsaturated ketones is an attractive method in organic synthesis. Through the discovery and further structure‐guided protein engineering of BsER, an ERED from Bacillus subtilis, the selective bio‐reduction of the well‐known building blocks Hajos‐Parrish ketone (HPK, 1 a) and Wieland‐Miescher ketone (WMK, 1 b) was achieved in this study. The optically pure (R)‐HPK ((R)‐1 a) and (R)‐WMK ((R)‐1 b) with corresponding >99% and 98% enantiomeric excess (ee) values were obtained by kinetic resolution of the racemic substrates. To the best of our knowledge, this is the first example of ERED mediated kinetic resolution of rac‐HPK and rac‐WMK. In addition, the reduction products cis‐7a‐methylhexahydro‐1H‐indene‐1,5(4H)‐dione (cis‐2 a) and cis‐8a‐methylhexahydronaphtha‐ lene‐1,6(2H,5H)‐dione (cis‐2 b) with high diastereomeric ratios (dr) were also obtained. We also developed four routes of biocatalytic cascade reduction involving BsER and ketoreductases (KREDs). Using optimized ERED‐KRED and KRED‐ERED cascades, (S)‐HPK ((S)‐1 a) and (S)‐WMK ((S)‐1 b) could be reduced stepwise, yielding the bioactive products all with >91% purity. This study presents a biocatalytic strategy for the kinetic resolution and cascade reduction of HPK and WMK (1 a and 1 b).
pH‐Responsive Hexa‐Histidine Metal Assembly (HmA) with Enhanced Biocatalytic Cascades as the Vehicle for Glucose‐Mediated Long‐Acting Insulin Delivery
Authors: Zhou Sijie , Yang Ruhui , Xie Xiaoling , Wang Liwen , Zheng Shengwu , Li Na , Tang Sicheng , Zan Xingjie 
Published: June 2023

AbstractDiabetes has been listed as one of the three major diseases that endanger human health. Accurately injecting insulin (Ins) depending on the level of blood glucose (LBG) is the standard treatment, especially controlling LBG in the long‐term by a single injection. Herein, the pH‐responsive hexa‐histidine metal assembly (HmA) encapsulated with enzymes (GOx and CAT) and Ins (HmA@GCI) is engineered as the vehicle for glucose‐mediated insulin delivery. HmA not only shows high proteins loading efficiency, but also well retained proteins activity and protect proteins from protease damage. Within HmA, the biocatalytic activities of enzymes and the efficiency of the cascade reaction between GOx and CAT are enhanced, leading to a super response to the change of LBG with insulin release and efficient clearance of harmful byproducts of GOx (H2O2). In the treatment of diabetic mice, HmA@GCI reduces LBG to normal in half an hour and maintains for more than 5 days by a single subcutaneous injection, and nearly 24 days with four consecutive injections. During the test period, no symptoms of hypoglycemia and toxicity to tissues and organs are observed. These results indicate that HmA@GCI is a safe and long‐acting hypoglycemic agent with prospective clinical application.
A segmentation of fresh meat shoppers based on revealed preferences
Authors: Thies Annika J. , Staudigel Matthias , Weible Daniela 
Published: June 2023

AbstractMeat‐focused diets are highly debated considering their environmental and health consequences. A change in consumption patterns in industrialized countries seems inevitable. To inform marketers and policymakers on how to mitigate meat consumption as a means of obtaining sustainability goals, the present study identifies consumer segments based on their actual purchases of fresh meat cuts using German household scanner data for the year 2014. Our revealed‐preference approach suggests that pork and beef traditionalists and convenience‐oriented pork buyers may react to financial incentives. Poultry and premium red meat lovers may be influenced by targeted labeling and quality signals. Overall, low‐meat consumption patterns seem to be less prevalent in Germany than commonly portrayed. [EconLit Citations: C38, D12, E21, Q18].
A Study of risk factors of postoperative ileus after laparoscopic colorectal resection
Authors: Fujiyoshi Sunao , Homma Shigenori , Yoshida Tadashi , Ichikawa Nobuki , Shibata Kengo , Matsui Hiroki , Taketomi Akinobu 
Published: June 2023

AbstractAimPostoperative ileus (POI) is a common complication after abdominal surgery. However, the risk factors for POI after laparoscopic colorectal resection are unclear. We therefore investigated the risk factors for POI after laparoscopic colorectal surgery.MethodsThis retrospective study involved 484 patients who underwent laparoscopic surgery for primary colorectal cancer at Hokkaido University Hospital. We categorized the patients into a POI group (n = 19) and non‐POI group (n = 465). We compared sex, age, smoking, chronic obstructive pulmonary disease (COPD), diabetes mellitus, body mass index (BMI), cardiac disorder, serum albumin, American Society of Anesthesiologists‐physical status, tumor location, tumor stage, operative duration, stoma formation, lymph node dissection, operator, and bleeding as potential risk factors for POI between the POI group and non‐POI group by univariate and multivariate analyses.ResultsThe univariate analysis results showed that the POI group had a higher incidence of male sex (P = 0.036), COPD (P = 0.029), and a BMI of <20 kg/m2 (P = 0.0487) as well as a higher bleeding volume (P = 0.014). The multivariate analysis results showed that male sex (odds ratio [OR], 0.2799; 95% confidence interval [CI], 0.089–0.993; P = 0.0298), COPD (0.2866; 0.095–0.862; P = 0.0262), and a BMI of <20 kg/m2 (0.2985; 0.112–0.794; P = 0.0154) were independent risk factors for POI after laparoscopic colorectal resection.ConclusionOur findings suggest that male sex, COPD, and a BMI of <20 kg/m2 are independent risk factors for POI after laparoscopic colorectal surgery for treatment of colorectal cancer.
α‐Alkylation of Mono‐Carbonyl Compounds with N‐Allylamines through Cooperative Actions of Lewis Acids and a Brønsted Base
Authors: Dai Changhang , Chapman Matthew , Wasa Masayuki 
Published: June 2023

AbstractWe present a strategy for the union of N‐allylamines and carbonyl compounds by the concerted action of B(C6F5)3 and a N‐based Brønsted base under redox‐neutral conditions. The reaction of in situ generated conjugated iminium ions and enolates affords δ‐aminocarbonyl compounds without waste generation. Furthermore, we describe that the cooperative action of B(C6F5)3, a chiral Zn‐based complex, and an amine facilitates the stereoselective reaction of a glycinate Schiff base ester and an N‐allylamine to afford an α‐substituted α‐amino ester.
Copper‐Catalyzed Intramolecular Radical Amination of Tertiary C(sp3)−H Bonds to Access α‐Quaternary Pyrrolidines
Authors: Gao Ang , Ren Yang‐Qing , Luan Cheng , Tian Yu , Liu Lin , Gu Qiang‐Shuai , Li Zhong‐Liang , Yang Chang‐Jiang , Liu Xin‐Yuan 
Published: June 2023

AbstractHerein, we describe a Cu(I)/phosphoric acid catalyzed intramolecular radical tertiary C(sp3)−H amination of N‐chlorosulfonamide, providing an applicable route to the pyrrolidine structural motifs bearing an α‐quaternary stereocenter (>20 examples with up to 94 % yield). Mechanistic studies indicate that the reaction involves an intramolecular 1,5‐hydrogen atom transfer process to form the key tertiary C‐centered radical followed by a C−N bond formation. The corresponding enantioselective amination is accordingly disclosed by Cu(I)/chiral phosphoric acid catalyst to afford the chiral products with up to 81 % enantiomeric excess (ee). This strategy is anticipated to facilitate the development of tertiary C(sp3)−H functionalization.
Alkynyl Boosted High‐Performance Lithium Storage and Mechanism in Covalent Phenanthroline Framework
Authors: Cao Yingnan , Fang Haoyan , Guo Chaofei , Sun Weiwei , Xu Yi , Wu Yang , Wang Yong 
Published: June 2023

AbstractThe poor conductivity of the pristine bulk covalent organic material is the main challenge for its application in energy storage. The mechanism of symmetric alkynyl bonds (C≡C) in covalent organic materials for lithium storage is still rarely reported. Herein, a nanosized (≈80 nm) alkynyl‐linked covalent phenanthroline framework (Alkynyl‐CPF) is synthesized for the first time to improve the intrinsic charge conductivity and the insolubility of the covalent organic material in lithium‐ion batteries. Because of the high degree of electron conjugation along alkynyl units and N atoms from phenanthroline groups, the Alkynyl‐CPF electrodes with the lowest HOMO–LUMO energy gap (ΔE=2.629 eV) show improved intrinsic conductivity by density functional theory (DFT) calculations. As a result, the pristine Alkynyl‐CPF electrode delivers superior cycling performance with a large reversible capacity and outstanding rate properties (1068.0 mAh g−1 after 300 cycles at 100 mA g−1 and 410.5 mAh g−1 after 700 cycles at 1000 mA g−1). Moreover, by Raman, FT‐IR, XPS, EIS, and theoretical simulations, the energy‐storage mechanism of C≡C units and phenanthroline groups in the Alkynyl‐CPF electrode has been investigated. This work provides new strategies and insights for the design and mechanism investigation of covalent organic materials in electrochemical energy storage.