bluuebunny/crossref_metadata_2025_split huggingface dataset:
Monitoring and method validation of organophosphorus/organochlorine pesticide residues in vegetables and fruits by gas chromatography
Authors: Dar Alamgir A. , Jan Ishrat , Shah Mehraj D. , Sofi Javid A. , Hassan G. I. , Dar Shahnawaz R. 
Published: September 2023

AbstractIn this study, an analytical method was developed and validated for the assessment of pesticide residues in commonly consumed vegetables and fruits. Fresh samples of apple, green peas, tomatoes, and cucumbers were processed and subjected to analysis using a modified QuEChERS (quick, easy, cheap, effective, rugged, safe) extraction technique. Subsequently, quantification of pesticide residues was conducted utilizing gas chromatography (GC)‐electron capture detector. Extraction and cleanup parameters were meticulously optimized, resulting in a modification of the original QuEChERS method. This modification aimed to reduce solvent consumption, making the study more environmentally friendly. The developed method was validated in terms of selectivity, specificity, linearity, precision, and accuracy by following the SANTE guidelines. Calibration curves showed good linearity (r > 0.99) within the test range. Precision was evaluated by intra‐ and inter‐day experiments with an acceptable relative standard deviation (<20.0%). Recovery was assessed at the limit of quantification level and was observed to fall within the range of 70%–120%, with relative standard deviations below 5.45%. The validated method presented here can be applied to analyze pesticide residues in various other vegetables, fruits, and cereals. It is essential for ongoing monitoring of pesticide residues to ensure public safety.
Words that work? Exploring client writing in therapy
Authors: Phillips Lynne , Rolfe Alison 
Published: September 2023

AbstractAimThere has been relatively little research enabling the direct voices of those who write voluntarily in counselling to be heard. This study explored the lived experience of five participants who voluntarily used self‐reflective writing whilst in counselling and found this helpful.MethodFive participants took part in a qualitative study based on a short writing task and related semi‐structured interview. Their accounts were analysed using interpretative phenomenological analysis, informed by psychodynamic thinking.FindingsParticipants used writing as a means of catharsis and to enable expression and exploration of parts of the self that were not immediately accessible. Writing was also a safe and private place to hold or contain unmanageable material, the true or hidden self and the process of counselling itself. Finally, writing functioned as a bridge, enabling participants to hold onto, internalise and extend their counselling. When shared in counselling, writing could also help the client to communicate, re‐own projections deposited in the writing and work towards self‐acceptance.ConclusionsWorking with client writing may be helpful, enabling the self to be heard, when speaking may initially feel too threatening. This may have relevance for client groups who find face‐to‐face counselling difficult.
The assimilation of problematic experiences during full‐time counsellor training: The case of Mandy
Authors: Folkes‐Skinner Julie A. 
Published: September 2023

AbstractBackgroundAlthough training to be a counsellor is likely to be emotionally demanding the extent to which these demands become problematic emotional experiences and how they influence trainee development has not been investigated.AimTo identify changes experienced by one trainee counsellor who was enrolled on a full‐time BACP accredited counsellor training course at a British university.MethodThe assimilation model was used to track Mandy's journey from student to therapist over the course of five, semi‐structured interviews.ResultsMandy developed problematic emotional experiences during training, and their assimilation was associated with personal and professional growth. They provide some evidence that personal development group work may be more emotionally challenging for trainees than work with clients and reveal the positive impact of compassionate and honest supervision.ConclusionsThe findings suggest that BACP courses are capable of producing reflective practitioners but raise questions about the length of time needed for students to become therapists and the role of personal therapy. This study also demonstrates how the assimilation model can be adapted to investigate change in trainee therapists and paves the way for further research in this area.
‘Hey, teach these kids to eat their own food!’: Institutional intergroup contact in immigrant mothers' talk
Authors: Paajanen Paula , Finell Eerika , Riikonen Reetta , Stevenson Clifford 
Published: September 2023

AbstractAlthough informal segregation often persists in multiethnic neighbourhoods, local institutions offering public services may act as an important setting for intergroup contact. Therefore, we studied how immigrant mothers of young children discursively construct institutional intergroup contact with workers of public playgrounds and kindergartens. We conducted longitudinal interviews with 10 immigrant mothers three times over the period of a year in 2 multi‐ethnic neighbourhoods in Helsinki, Finland. Using Critical Discursive Psychology, we analysed respondents' talk about the encounters and identified three interpretative repertoires: ‘contact as asserting rights’, ‘contact as helping’, and ‘contact as cultural rectification’. Our analysis showed how mothers positioned themselves and the workers differently in terms of agency and power in each repertoire. Our findings stress the importance of studying people's own sense‐making of institutional contact, with different roles for participants, and that construction of agency within institutional contact is important for building equal membership in society. Please refer to the Supplementary Material section to find this article's Community and Social Impact Statement.
Complex high‐risk percutaneous coronary intervention types, trends, and outcomes according to vascular access site
Authors: Shamkhani Warkaa , Moledina Saadiq , Rashid Muhammad , Mamas Mamas A. 
Published: September 2023

AbstractBackgroundRadial access is associated with improved outcomes following percutaneous coronary intervention (PCI); however, its role in complex, high‐risk percutaneous coronary intervention (CHiP) remains poorly studied.MethodsWe studied retrospectively all registered patients's records from the British Cardiovascular Intervention Society dataset and compared the baseline characteristics, trends and outcomes of CHiP procedures performed electively between January 2006 and December 2017 according to the access site.ResultsOut of 137,785 CHiP procedures, 61,825 (44.9%) were undertaken via transradial access (TRA). TRA use increased over time (14.6% in 2006 to 67% in 2017). The TRA patients were older, with a greater prevalence of previous stroke, hypertension, peripheral vascular disease, and smokers. TRA was used more frequently in most CHiP procedures (elderly (51.6%), chronic renal failure (52.6%), poor left ventricular (LV) function (47.6%), left main PCI (48.0%), treatment for severe vascular calcification (50.3%); although transfemoral access (TFA) was used more commonly in those with prior history of coronary artery bypass graft surgery, and PCI to a chronic total occlusion and LV support patients. Following adjustment for differences in clinical and procedural characteristics, TFA was independently associated with higher odds for mortality [adjusted odds ratio (aOR): 1.3 (1.1–1.7)], major bleeding [aOR: 2.9 (2.3–3.4)], and MACCE (following propensity score matching) [aOR: 1.2 (1.1–1.4)]. The same was found with multiple accesses: mortality [aOR: 2.1 (1.5–2.8)], major bleeding [aOR: 5.5 (4.3–6.9)], and MACCE [aOR: 1.4 (1.2–1.7)].ConclusionTRA has become the predominant access site for CHiP procedures and is associated with significantly lower mortality, major bleeding and MACCE odds than TFA.
Increase of tocopherols, phytosterols, and carotenoids in high‐oil subtropical maize after recurrent selection
Authors: García‐Lara Silverio , Rodríguez‐Treviño Abel , Ortíz‐Islas Sofia , Preciado‐Ortíz Ricardo E. , Serna‐Saldívar Sergio O. 
Published: September 2023

AbstractBackground and ObjectivesSubtropical high‐oil maize (HOM) genotypes have been successfully developed, but further evaluation of the content of liposoluble nutraceuticals is essential. The aim of this study was to determine the concentration and profile of tocopherols, phytosterols, and carotenoids in HOM and the effects of high‐oil selection in white and yellow subtropical populations.FindingsResults indicated that recurrent selection increase of germ proportion (9%–12%) in the total kernel had a direct effect on the oil content and increased the contents of carotenoids, tocopherols, and phytosterols. In particular, carotenoids improved only in yellow populations, with an improvement in total carotenoid (from 13 to 17 mg/kg dry weight [dw]), provitamin A, β‐carotenes, and β‐cryptoxanthin. α‐ and γ‐Tocopherols showed an overall increase in the total content (up to 39 mg/kg dw). Total phytosterols increased significantly in both populations, with similar changes in composition (up to 374 mg/kg dw). β‐Sitosterol was the predominant phytosterol associated with HOM.ConclusionsRecurrent selection for high oil in subtropical maize effectively altered the liposoluble nutraceuticals compounds of improved kernels in terms of carotenoids, tocopherols, and phytosterols, with modifications in their profiles.Significance and NoveltyThis research demonstrated that recurrent selection is an effective traditional breeding tool that improves oil, tocopherols, phytosterols, and carotenoids in subtropical maize. This investigation represents a first step toward understanding how the improvement of oil content affects the lipophilic nutraceutical content.
Transparent Conductive Encapsulants for Photoelectrochemical Applications
Authors: Rome Grace A. , Intia Fry , Klein Talysa R. , Schichtl Zebulon G. , Tamboli Adele C. , Warren Emily L. , Greenaway Ann L. 
Published: September 2023

AbstractInvited for this issue's Front Cover is a group of researchers from the Materials, Chemistry, and Computational Science Directorate at the National Renewable Energy Laboratory, led by Dr. Ann L. Greenaway. The front cover picture shows the surface of a TCE sheet, with the metallized spheres that act as conductive pathways from the semiconductor surface, through the polymer matrix, to the electrochemical interface. The rainbow represents the light going through the TCE layer to the semiconductor below. The primary electrochemical reaction used in this work was the first reduction of methyl viologen, as illustrated with the floating chemical structures. Cover design by Talysa Klein (https://www.tk2.design/). Read the full text of the Research Article at 10.1002/celc.202300209.
Synthesis and Photochromic Properties of Diaryl [5]Helicene Derivatives
Authors: Li Ruiji , Fang Qi , Chen Minghui , Yamada Mihoko , Tsuji Yugo , Kugai Yusuke , Li Wei , Kawai Tsuyoshi 
Published: September 2023

AbstractPhotoinduced tuning of aromaticity and correlative molecular properties has attracted enormous interest in recent years both for modulating photochromism properties and designing novel photochromic materials. Here, we report the synthesis and photochemical characterization of diaryl[5]helicene‐based diarylethene molecular switches. 3,4‐Bis(2,4‐dimethyl‐5‐phenylthiophen‐3‐yl)dibenzo[c,g]phenanthrene derivative 1 a showed no photochromic reaction, whereas 3,4‐bis(2‐methyl‐5‐phenylthiophen‐3‐yl)dibenzo[c,g]phenanthrene derivative 2 a and 3,4‐bis(5‐methyl‐2‐phenylthiazol‐4‐yl)dibenzo[c,g]phenanthrene derivative 3 a exhibited reversible photochromism in different aprotic solvents with specific light irradiation. Meanwhile, the diarylethene compounds 2 a and 3 a underwent turn‐off mode fluorescence photoswitching together with photoisomerization upon light irradiation. Remarkably, the photoinduced changes in the aromaticity of [5]helicene as a central ethene bridge along with the relative smaller activation energy and higher frequency factor facilitated the thermal bleaching rates of diarylethene switches 2 and 3 in solution. This research provides new insight for designing aromatic diarylethene photoswitches for reversible fluorescence switching, photoinduced changes in aromaticity and further fast thermal back reactions.
A Three‐Dimensional (3D) Framework of Freestanding Vanadium Nitride Nanowires for Dendrite‐Free and Long Life‐Span Lithium Metal Anodes
Authors: Feng Xiaoyu , Huang Xian , Gao Biao 
Published: September 2023

AbstractLithium (Li) metal is a promising anode candidate for high‐energy‐density batteries owing to its high theoretical capacity and low electrochemical potential. However, uneven Li nucleation, uncontrollable dendritic growth, infinite voltage change and even safety issues hinder its commercial application. Herein, a three‐dimensional (3D) framework of freestanding vanadium nitride nanowires (VN NWs) is established as Li host for dendrite‐free Li metal anode. A lithiophilic Li3N interlayer which in situ formed by the surface reaction between molten Li and VN NWs is utilized to guide a uniform Li nucleation and deposition within the skeleton, as well as avoid the dendrite formation. Meanwhile, VN NWs can decrease local current density, homogenize Li‐ion flux and accommodate volume fluctuations of the anode due to its 3D structure with high electron conductivity. Thus, the corresponding composite Li metal anode delivers a long‐life span of 500 cycles (1000 h) at a current density of 0.5 mA cm−2, and exhibits lower nucleation over‐potential and voltage hysteresis at different current densities from 0.5~5 mA cm−2 in carbonate electrolyte. In conclusion, this work provides a new type of scaffold with both high electronic conductivity and excellent lithiophilicity for stable Li anodes.
Efficient cobalt oxalate synthesis process optimization via second‐order modifier adaptation with transfer learning
Authors: Chu Fei , Chai Guowei , Wang Jiachen , Jia Runda , He Dakuo 
Published: September 2023

AbstractThis paper proposes a second‐order modifier adaptation optimization based on the transfer model, which aims to improve the optimization efficiency. Although the traditional modifier adaptation strategy adds a bias to the model to meet the necessary condition of optimality (NCO), approximating only to the first‐order may neglect some key higher‐order information. Making use of as much higher‐order information as possible is an effective way to improve the efficiency of optimization. For this issue, by introducing the second‐order information into the modifier adaptation method to compensate the mismatch of higher‐order information during the optimization, the compensation of the mismatch between model and plant can get accelerated, thus improving the optimization efficiency. To overcome the difficulty of insufficient data for new process modelling, a process transfer model is also used to fit the relationship between manipulated variables and final product quality. The simulation study of the cobalt oxalate synthesis process shows that this strategy has better optimization efficiency.
Visible Light‐Induced [3+2] Annulation Reaction of Alkenes with Vinyl Azides: Direct Synthesis of Functionalized Pyrroles
Authors: Yang Ming , Wang Xin‐Yu , Wang Jie , Zhao Yu‐Long 
Published: September 2023

Comprehensive SummaryA photocatalytic [3+2] annulation of alkenes with vinyl azides was developed under irradiation by visible light in the presence of organic dye photocatalysts. Broad substrate scope and high functional group tolerance were demonstrated by more than 50 examples. The reaction provides a novel and efficient method for the synthesis of polyfunctionalized pyrroles under very mild metal‐free conditions without other additives.
Association between dietary vitamin intake and mortality in US adults with diabetes: A prospective cohort study
Authors: Liu Wei , Cao Shuting , Shi Da , Ye Zi , Yu Linling , Liang Ruyi , Cheng Man , Chen Weihong , Wang Bin 
Published: September 2023

AbstractAimsTo explore the association of dietary vitamin intake from food and/or supplement with mortality in US adults with diabetes.Materials and MethodsThis prospective cohort study was conducted on 5418 US adults with diabetes from the National Health and Nutrition Examination Survey 1999–2018. Vitamin intake from food and supplements was estimated via dietary recall. Sufficient intake from food or food + supplement was defined as ≥ estimated average requirement (EAR) and ≤ tolerable upper intake level (UL), insufficient intake, < EAR; and excess intake, > UL. Medium supplementary intake was classified as > median level and ≤75th percentile; low intake, ≤ median level; and high intake, >75th percentile, as reported by supplement users.ResultsA total of 1601 deaths occurred among the participants over a median follow‐up of 11.0 years. Cox regression analysis of the single‐vitamin model demonstrated that sufficient vitamin A and folate intake from food and food + supplement and medium vitamin A and folate intake from supplement; sufficient riboflavin, niacin, and vitamin B6 intake from food and food + supplement; and sufficient thiamin and vitamin E intake from food + supplement were significantly associated with reduced all‐cause mortality (all p < 0.05). In the multivitamin model, sufficient vitamin A and folate intake from food and food + supplement, medium vitamin A and folate intake from the supplement, and sufficient niacin intake from food and food + supplement were inversely associated with mortality (all p < 0.05).ConclusionsVitamin A and folate intake from food or supplement and niacin intake from food were significantly associated with reduced mortality in US adults with diabetes.
Evidences of differential methylation in the genome during development in the cactophilic Drosophila species
Authors: Santos Adriano S. , Ramos Ester S. , Valente‐Gaiesky Vera L. S. , de Melo Sene Fábio , Manfrin Maura H. 
Published: September 2023

SummaryDNA methylation with 5‐methylcytosine (5mC) has been reported in the genome of several eukaryotes, with marked differences between vertebrates and invertebrates. DNA methylation is poorly understood as its role in evolution in insects. Drosophila gouveai (cluster Drosophila buzzatii) presents larvae that develop obligatorily in necrotic tissues of cacti in nature, with the distribution of populations in South America, and plasticity of phenotypes in insect–plant interaction. We characterize organisms at developmental stages and analyze variations at multiple methylation‐sensitive loci in pupae, and adult flies using methylation sensitive amplification polymorphism. We obtained 326 loci with CCGG targets in the genome of D. gouveai. Genomic regions with molecular lengths from 100 to 700 pb were most informative about methylation states. Multiple loci show differences in methylation‐sensitive sites (MSL) concerning developmental stages, such as in pupae (MSL = 40), female reproductive tissue (MSL = 76), and male reproductive tissues (MSL = 58). Our results are the first evidence of genome‐wide methylation in D. gouveai organisms.
Transgenerational plasticity in morphological characteristics and biomass of the invasive plant Xanthium strumarium
Authors: Liu Xinyue , Man Xiaozhen , Chen Meishan , Zhao Changxin , Liu Chuang , Tong Jialin , Meng Fanqi , Shao Meini , Qu Bo 
Published: September 2023

AbstractTransgenerational plasticity (TGP) allows a plant to acclimate to external variable environments and is a potential mechanism that explains the range expansion and invasion success of some exotic plants. Most studies explored the traits of TGP associated with the success of exotic plant invasions by comparison studies among exotic, native, invasive, and noninvasive species. However, studies on the TGP of invasive plants in different resource environments are scarce, and the biological mechanisms involved are not well understood. This study aimed to determine the role of TGP in the invasiveness of Xanthium strumarium in northeast China. We measured the plant morphology of aboveground parts and the growth of three generations of the invader under different environmental conditions. The results showed that the intergenerational plasticity of X. strumarium was stronger under stress conditions. We found that the X. strumarium parent generation (F0) grown under water and/or nutrient deficiency conditions transferred the environmental information to their offspring (F1 and F2). The F1 generation grown under high‐resource conditions has greater height with larger crown sizes, thicker basal diameters, and higher biomass. Both water and nutrients can affect the intergenerational transmission of plant plasticity, nutrients play a more important role compared with water. The high morphological intergenerational plasticity of X. strumarium under a pressure environment can help it quickly adapt to the new environment and accelerate the rapid expansion of the population in the short term. The root:shoot ratio and reproductive and nutrient distribution of the X. strumarium F0 and F1 generations showed high stability when the growth environment of the F0 generation differed from that of the F1 generation. The stable resource allocation strategy can ensure that the obtained resources are evenly distributed to each organ to maintain the long‐term existence of the community. Therefore, the study of intergenerational transmission plasticity is of great significance for understanding the invasion process, mechanism, and prevention of invasive plants.
Copper‐Catalyzed α,β‐Regioselective (2+4) Cycloaddition of Propargylic Esters
Authors: Zhang Guo‐Ke , Wu Shu‐Fang , Zhong Chen , Liu Yu‐Qi , Wang Da‐Hua , Zhang Yu‐Chen , Shi Feng 
Published: September 2023

AbstractA copper‐catalyzed α,β‐regioselective (2+4) cycloaddition of propargylic esters with o‐hydroxyphenyl substituted secondary phosphine oxides (SPOs) was established, which afforded a series of phosphorus‐containing six‐membered heterocycles in high yields. This reaction represents the first α,β‐regioselective (2+n) cycloaddition of propargylic esters via the intermediates of copper‐allenylidenes, which will enrich the chemistry of propargylic esters and copper‐allenylidenes. Moreover, this work also represents the first application of o‐hydroxyphenyl substituted SPOs as 1,4‐dinucleophiles in (2+4) cycloadditions, which provides a useful protocol for the synthesis of phosphorus‐containing six‐membered heterocycles with potential bioactivity.