bluuebunny/crossref_metadata_2025_split huggingface dataset:
New piperidinium surfactants with carbamate fragments as effective adjuvants in insecticide compositions based on imidacloprid
Authors: Kushnazarova Rushana A. , Mirgorodskaya Alla B. , Vasilieva Elmira A. , Lenina Oksana A. , Petrov Konstantin A. , Zakharova Lucia Ya. 
Published: July 2024

AbstractBACKGROUNDSurfactants, particularly non‐ionic ones, are widely used as adjuvants in pesticide formulations due to their ability to maintain pesticide effectiveness without changing solution properties, such as pH. While non‐ionic surfactants are generally low‐toxic, stable, and excellent dispersants with high solubilization capabilities, they may be less effective than cationic surfactants, which offer superior surface activity, transport properties, and antimicrobial action. This study investigates the efficacy of new piperidinium surfactants with carbamate fragments as adjuvants in insecticide formulations containing imidacloprid. The efficacy of these formulations is being assessed against greenhouse whitefly, a pest known to harm cultivated and ornamental flowering plants.RESULTSThe aggregation behavior of piperidinium surfactants containing carbamate fragments was investigated, and their wetting effect was evaluated. Synthesized surfactants have lower CMC values compared to their methylpiperidinium analogue. The effect of piperidinium surfactants on the insecticide concentration on the surface and inside tomato leaves was assessed using spectrophotometric methods. It was found that the introduction of piperidinium surfactants with carbamate fragment at a concentration of 0.1% wt. allows for decrease in lethal concentration of imidacloprid up to 10 times, thereby testifying the marked increase in the effectiveness of imidacloprid against the greenhouse whitefly insect pest (Trialeurodes vaporariorum). It was shown that the main factors responsible for the enhanced efficacy of the insecticide were the ability of the surfactant to increase the concentration of imidacloprid on the leaf surfaces and improve their penetration into the plant.CONCLUSIONThe presented work employed a comprehensive approach, which significantly increases the generalizability of the results obtained and provides the ability to predict the effect and target selection of adjuvants. © 2024 Society of Chemical Industry.
Potency analysis of twelve cannabinoids in industrial hemp via ultrahigh‐performance liquid chromatography–tandem mass spectrometry
Authors: Cai Youxi , Zhang Ruiting , Zhang Hao , Li Xiaolei 
Published: July 2024

AbstractRationaleWith an increasing appreciation for the unique pharmacological properties associated with distinct, individual cannabinoids of Cannabis sativa, there is demand for accurate and reliable quantification for a growing number of them. In this study, we developed rapid, sensitive, selective, accurate, and validated liquid chromatography‐tandem mass spectrometry for the quantification of cannabinoids.MethodsCrushed industrial hemp flower and leaf sample was extracted by 95% methanol aqueous, sonicated for 30 min. UPLC‐MS/MS analysis using Waters Acquity BEH‐C18 column and electrospray ionization(ESI) mass spectrometry detector.ResultsThe method was validated to demonstrate its reproducibility and precision, linearity, recovery investigation, and investigation of matrix effect. The concentration–response relationship for all analyzed cannabinoids were linear with R2 values >0.99, with intra‐ and inter‐day precision and relative errors below 12%. The recovery and matrix effect were measured as 66.1%–104.1% and 70.42%–110.75%.ConclusionsThis study established a UHPLC‐MS/MS method for the simultaneous and rapid quantitative determination of twelve cannabinoids in industrial hemp flowers and leaves in 11 min. The method was used to analyze 43 industrial hemp flower and leaf samples, with the data being statistically analyzed. Based on the statistical analysis of the cannabinoids, hemp from different regions and different varieties were well distinguished by the PLS‐DA model, with the main contributing substances being cannabidiol, Δ9‐tetrahydrocannabinol, and Δ8‐tetrahydrocannabinol.
The theoretical and evidence‐based components of whole school approaches: An international scoping review
Authors: Cavanagh Matthew , McDowell Claire , Connor Bones Una O. , Taggart Laurence , Mulhall Peter 
Published: July 2024

AbstractThe whole school approach (WSA) is often used in schools as a means of transformative change across many areas and involves many stakeholders. Many of the approaches used in WSAs are underpinned by psychological, social and educational theories. Although many of these approaches focus on vulnerable groups such as bullied and excluded children, relatively few of these approaches aim to support children with special educational needs (SEN). This specific vulnerable group includes children with attention deficit hyperactivity disorder (ADHD), dyslexia, autism spectrum disorders, among many others. A rigorous, theory‐driven approach to supporting such children in schools is essential in ensuring positive academic and developmental outcomes for such students. Therefore, a scoping review was undertaken to explore the current literature on the use of WSAs, their theoretical and evidence‐based components as well as key areas in which they are utilised and how they are evaluated. After searching in seven (EBSCOhost, ERIC, British Education Index, Open Dissertation Search, PsycINFO, Medline Ovid, Child Development and Adolescent Studies) databases and completing a rigorous screening process, 21 papers were included in the review. Recommendations for further research involving the development and implementation of a WSA to support children with special educational needs are made, with emphasis placed on the importance of a clear theoretical underpinning, interdependent components, clear outcome measures and co‐production.
Novel Multi‐Function Chromoionophoric Probe‐Based Nano‐Conjugate Material for Highly Efficient Detection, Removal, and Recovery of Pd(II) and Co(II) Ions from Electronic Wastes and Electroplating Wastewater
Authors: Hosni Mohamed , Abd El‐aal Reda M. , Shahat Ahmed , El‐Sewify Islam M. 
Published: July 2024

AbstractThis study describes the development of a multifunction chromoionophoric probe‐based nano‐conjugate material for the colorimetric determination, recovery, and removal of palladium and cobalt ions (Pd(II) and Co(II)) ions from electronic wastes and electroplating wastewater. The chromoionophoric probe‐based nano‐conjugate material was prepared using a building‐block approach by anchoring the 4‐[(E)‐(2‐hydroxyphenyl)diazenyl]‐1‐nitrosonaphthalen‐2‐ol (HDN) organic chromoionophoric probe onto nano‐spherical silica material carrier. The prepared materials were characterized using different techniques, such as TEM, SEM XRD, and BET. The HDN chromoionophoric probe‐based nano‐conjugate material was evaluated for its effectiveness in detecting and removing Pd(II) and Co(II) ions from electronic wastes and electroplating wastewater by testing various parameters such as pH, sensing system temperature, reaction kinetic, nano‐conjugate material amount, stability of the chromoionophoric probe‐based nano‐conjugate material and the existence of other coexisting metal ions. The HDN chromoionophoric probe‐based nano‐conjugate material demonstrated high selectivity and sensitivity for the colorimetric ion‐sensing of Pd(II) and Co(II) ions, with a detection limit of 7.18 and 208 nM, respectively. The method displayed optimal sensing at pH levels of 6.0 and 8.0 for Pd(II) and Co(II) ions, respectively, and the presence of other metal ions did not meaningfully influence the performance of the ion‐detection due to the powerful ability of the chromoionophoric probe‐based nano‐conjugate material. The adsorption capacity of the chromoionophoric probe‐based nano‐conjugate material towards Pd(II) and Co(II) ions was investigated and the outcomes were 163.40 and 128.57 mg/g, respectively. The chromoionophoric probe‐based nano‐conjugate material could be regenerated by eluting the adsorbed Pd(II) and Co(II) ions with 0.15 M HCl solution. In addition, the material could be reused multiple times, with almost no decrease in its initial performance after regeneration. Based on the findings, the chromoionophoric probe‐based nano‐conjugate material shows potential for environmental recovery, removal, and detection of Pd(II) and Co(II) ions from electronic wastes and electroplating wastewater, indicating its potential as a multi‐function solution for environmental concerns and issue and could be even commercialized and used at a larger scale.
Synthesis of Novel Anticancer Drugs Derived from 4‐nitrobenzaldehyde, and Investigation of Responsive Drug Delivery Systems Based on Carbon Quantum Dots.
Authors: Daniel Sobhi , Binu Ann Maria K. , Sunish K. S. , Joy Jain , Sivan Unnikrishnan , Menon Athira M. 
Published: July 2024

AbstractThe present work describes the synthesis two novel derivatives of 4‐nitrobenzaldehyde through a single pot microwave assisted green synthetic method and the characterization of the synthesized drugs using UV, IR,1HNMR, Mass spectra and CHN analysis. The structure optimization of the synthesized anticancer agents was carried out using Gaussian 9. Also carbon quantum dots (CQDs) derived from amino acid precursors were synthesized (Cystine and threonine) by microwave assisted method, followed by the integration of CQDS together with 4‐nitrobenzaldehyde and its novel derivatives. The drugs were subjected to targeted drug delivery applications in cancer cell lines (PC3) The MTT assay results revealed that the CQDs conjugated with 4‐nitrobenzaldehye (D1) and one of the derivatives (D3) exhibited greater cytotoxic effects on PC3 cells compared to L929 cells. The outcomes demonstrated that this novel derivative could kill cancer cells as effectively as 4‐nitrobenzaldehyde conjugated with CQDs. Also, the potential cytotoxicity of drugs D1 and D3 were further confirmed by the apoptosis assay using flow cytometry, which also explains that apoptosis is the mechanism underlying cell death in PC3 cancer cells. The autofluorescence test were also carried out in PC3 cells lines and the drugs D1 and D3 showed significant autofluorescence in PE−A (29.9 % and 34.7 %), in Alexa Fluor‐488 (32.6 % and61.1 %) and in Bv510‐A (16.6 % and 23.2 %) respectively. Thus, the synergistic effect of CQDs together with 4‐nitrobenzaldehyde and its derivative drug D3 are indeed a promising medication towards the localized drug delivery applications in prostate cancer cells as well as the autofluorescence results will explore novel arenas in bioimaging applications.
Advances in Plasmonic Photonic Crystal Fiber Biosensors: Exploring Innovative Materials for Bioimaging and Environmental Monitoring
Authors: Vatani Sareh , Biney Jeshurun , Faramarzi Vahid , Jabbour Ghassan , Park Jeongwon 
Published: July 2024

AbstractThis review paper comprehensively analyzes recent advancements in optical fiber‐based biosensors, focusing on conventional fiber and photonic crystal structures. This paper overviews the significant applications of optical fiber biosensors, including bioimaging, quality analysis, food safety, and field environment monitoring, setting the stage for subsequent discussions. The primary objective of the review is to systematically evaluate recent literature concerning optical fiber‐based biosensors, emphasizing their sensitivities and resolutions. The second section explores integrating plasmonic materials such as graphene, TDMC, germanium, black phosphorus, and silicon within optical fiber biosensors, elucidating their roles in enhancing sensitivity and resolution in biosensing applications. A detailed examination of photonic crystal fibers (PCF) follows, categorizing them into internally and externally metal film‐coated biosensors, highlighting their distinct advantages and limitations. Comparative analyses in two tables delineate the performance and sensitivity of optical fiber‐based biosensors, mainly focusing on different coating strategies. The final section of the review discusses emerging trends and applications in optical fiber biosensing technologies, underscoring their potential to transform biomedical and environmental monitoring fields. By synthesizing recent developments and challenges, this review aims to offer researchers and practitioners a comprehensive understanding of optical fiber‐based biosensors, facilitating informed decision‐making and driving further advancements in the field.
Tri‐site Synergistic Cu(I)/Cu(II)─N Single‐Atom Catalysts for Additive‐Free CO2 Conversion
Authors: Cao Qiuyan , Sun Wenqiang , Xiao Zhihe , Zhou Xiaole , Lu Lilin , Hou Haonan , Chen Yueguang , Wang Leyu 
Published: July 2024

AbstractAs the highly stable and abundant carbon source in nature, the activation and conversion of CO2 into high‐value chemicals is highly desirable yet challenging. The development of Cu(I)/Cu(II)─N tri‐site synergistic single‐atom catalysts (TS‐SACs) with remarkable CO2 activation and conversion performance is presented, eliminating the need for external additives in cascade reactions. Under mild conditions (40 °C, atmospheric CO2), the catalyst achieves high yields (up to 99%) of valuable 2‐oxazolidinones from CO2 and propargylamine. Notably, the catalyst demonstrates easy recovery, short reaction times, and excellent tolerance toward various functional groups. Supported by operando techniques and density functional theory calculations, it is elucidated that the spatially proximal Cu(I)/Cu(II)─N sites facilitate the coupling of multiple chemical transformations. This surpasses the performance of supported isolated Cu(I) or Cu(II) catalysts and traditional organic base‐assisted cascade processes. These Cu(I)/Cu(II)─N tri‐site synergistic atom active sites not only enable the co‐activation of CO2 at the Cu(II)─N pair and alkyne at the Cu(I) site but also induce a di‐metal locking geometric effect that accelerates the ring closure of cyclic carbamate intermediates. The work overcomes the limitations of single metal sites and paves the way for designing multisite catalysts for CO2 activation, especially for consecutive activation, tandem, or cascade reactions.
Inorganic Electrolyte Additive Promoting the Interfacial Stability for Durable Zn‐Ion Batteries
Authors: Zhang Jie , Zhou Chuancong , Xie Yu , Nan Qing , Gao Yating , Li Fulong , Rao Peng , Li Jing , Tian Xinlong , Shi Xiaodong 
Published: July 2024

AbstractThe development of Zn‐ion batteries (ZIBs) is always hindered by the ruleless interface reactions between the solid electrode and liquid electrolyte, and seeking appropriate electrolyte additives is considered as a valid approach to stabilize the electrode/electrolyte interphases for high‐performance ZIBs. Benefiting from the unique solubility of TiOSO4 in acidic solution, the composite electrolyte of 2 m ZnSO4+30 mm TiOSO4 (ZSO/TSO) is configured and its positive contribution to Zn//Zn cells, Zn//Cu cells, and Zn//NH4V4O10 batteries are comprehensively investigated by electrochemical tests and theoretical calculations. Based on the theoretical calculations, the introduction of TiOSO4 contributes to facilitating the desolvation kinetics of Zn2+ ions and guarantees the stable interface reactions of both zinc anode and NH4V4O10 cathode. As expected, Zn//Zn cells keep long‐term cycling behavior for 3750 h under the test condition of 1 mA cm−2–1 mAh cm−2, Zn//Cu cells deliver high Coulombic efficiency of 99.9% for 1000 cycles under the test condition of 5 mA cm−2–1 mAh cm−2, and Zn//NH4V4O10 batteries maintain reversible specific capacity of 193.8 mAh g−1 after 1700 cycles at 5 A g−1 in ZSO/TSO electrolyte. These satisfactory results manifest that TiOSO4 additive holds great potential to improve the performances of ZIBs.
Integrating GWAS with a gene co‐expression network better prioritizes candidate genes associated with root metaxylem phenes in maize
Authors: Klein Stephanie P. , Kaeppler Shawn M. , Brown Kathleen M. , Lynch Jonathan P. 
Published: July 2024

AbstractRoot metaxylems are phenotypically diverse structures whose function is particularly important under drought stress. Significant research has dissected the genetic machinery underlying metaxylem phenotypes in dicots, but that of monocots are relatively underexplored. In maize (Zea mays), a robust pipeline integrated a genome‐wide association study (GWAS) of root metaxylem phenes under well‐watered and water‐stress conditions with a gene co‐expression network to prioritize the strongest gene candidates. We identified 244 candidate genes by GWAS, of which 103 reside in gene co‐expression modules most relevant to xylem development. Several candidate genes may be involved in biosynthetic processes related to the cell wall, hormone signaling, oxidative stress responses, and drought responses. Of those, six gene candidates were detected in multiple root metaxylem phenes in both well‐watered and water‐stress conditions. We posit that candidate genes that are more essential to network function based on gene co‐expression (i.e., hubs or bottlenecks) should be prioritized and classify 33 essential genes for further investigation. Our study demonstrates a new strategy for identifying promising gene candidates and presents several gene candidates that may enhance our understanding of vascular development and responses to drought in cereals.
Diffuse, bilateral intraventricular spread of an oligodendroglioma in a Boxer dog
Authors: Giles Amber , Hoffmann Karon , Spröhnle‐Barrera Cleide , Dill‐Macky Elizabeth , Thomson Christine 
Published: July 2024

AbstractA case of a high‐grade oligodendroglioma in a boxer dog is presented. Using magnetic resonance imaging, a parenchymal lesion was noted entering into the ventrocaudal, right lateral ventricle. Magnetic resonance imaging showed the mass had extensive, contiguous spread rostrally through the lateral ventricles, and caudally into the third and fourth ventricles, and central canal. This was confirmed with histopathology. This degree of invasion in the ventricles by an oligodendroglioma has not been reported and indicates that oligodendrogliomas should be included as a differential diagnosis for intraventricular tumours with bilateral, contiguous invasion of the ventricular system.
Synthesis and Characterization of Alkali Metal Hypersilyl Borates
Authors: Lainer Thomas , Walkner Christoph , Tasch Nina M. , Fischer Roland C. , Torvisco Ana , Stueger Harald , Haas Michael 
Published: July 2024

AbstractThis study focuses on the synthesis of H‐ and MeO‐ functionalized alkali metal hypersilyl borates. Consequently, two distinct silanides were used as polysilane frameworks for our chemical manipulations. Tris(silyl)silanide (1) and tris(trimethoxysilyl)silanide (2) react in the same manner with the BH3 ⋅ SMe2 complex to obtain two new alkali metal hypersilyl borates [(R3Si)3SiBH3M (M=alkali metal; R=H, (3), R=MeO, (4 a–c))] in good to excellent yields. NMR spectroscopy for all compounds and single‐crystal X‐ray crystallography for 3 and 4 a, b enabled a clear structural characterization. Single crystal X‐ray analysis of 3 showed a dimeric structure, where two THF‐molecules and three hydrides from the BH3‐group contribute to the coordination sphere of the lithium atom. Interestingly, crystals suitable for X‐ray analysis of 4 a and 4 b showed a solvent‐free cluster formation, due to the coordination of the MeO groups. Both species form coordination polymers with different coordination modes depending on the nature of the alkali metal. Attempted hydride abstraction reactions of 3 and 4 with various reagents under the formation of the free boranes proceeded unselectively.
On the Structure of Tl2Pb(SO4)2 and Crystal Chemistry of Thallium‐Containing Sulfates
Authors: Chen Pengyun 
Published: July 2024

AbstractSingle crystal of a thallium‐containing sulfate Tl2Pb(SO4)2 was prepared through hydrothermal crystallization starting from Tl2CO3, Pb(NO3)2 and H2SO4. The crystal structure was solved from single‐crystal X‐ray diffraction data: Tl2Pb(SO4)2 crystallizes in space group R
m with lattice parameters of a=5.5955(2) Å, c=22.1001(9) Å, and Z=3, which is also corroborated by Rietveld refinement on X‐ray powder data. The crystal structure can be regarded as [Pb(SO4)2]2− sheets intercalated by double layers of Tl+ along the c‐axis. From a mineralogical perspective, Tl2Pb(SO4)2 belongs to the palmierite family and can further be classified within palmierite‐supergroup. Validation of the structure models was carried out utilizing various concepts including Bond Valence (BV), Charge Distribution (CD) and Madelung Part of Lattice Energy (MAPLE). Notably, a contrast in stereochemical activity of 6s2 lone electron pair (LEP) between Tl+ and Pb2+ is interpreted in terms of bonding behaviours as well as Wang‐Liebau Eccentricity (WLE) parameters. Moreover, an extensive investigation into the crystal chemistry of thallium‐containing sulfates was conducted for the first time, focusing on the coordination environment and bonding behaviour of Tl+ and corresponding WLE parameters. A comparative analysis of these structurally related compounds including Tl2Pb(SO4)2, Tl3H(SO4)2, TlBi(SO4)2, TlIn(SO4)2, TlRh(SO4)2, and TlAl(SO4)2 was delineated.
The Legal Issues of Opening and Running Gastronomic Entrepreneurships in Kazakhstan: A Case Study from the City of Taldykorgan
Authors: Nurmukhankyzy Daniya 
Published: July 2024

AbstractFood service has remained a buzzword in the everyday lives of the Kazakh people, as an industry providing jobs for many people and significantly contributing to the country's economy. However, the numerous monthly closings of restaurants raise questions regarding what makes businessmen close their food service businesses. Multiple answers exist to this question. From my vantage point, the answer requires an analysis of the legal issues and challenges, which may create barriers to conducting business. Fundamentally, the development of any sector of the economy directly depends upon the quality of legislation surrounding it. This chapter, therefore, focuses on issues related to the legal regulation of gastronomic businesses in Kazakhstan. In this study on the legal regulations surrounding opening a gastronomic business, I provide examples from the city of Taldykorgan. Within this chapter, I identify problems and gaps in the legislation and propose ways of addressing them. Combining methods such as desk research and an analysis of normative legal acts, statistics, and qualitative interviews, the findings outline recommendations for the implementation of legislation in the Republic of Kazakhstan on the regulation of the food service industry and related businesses.