bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recent Advances in Catalytic Carbonylation Reactions in Alternative Reaction Media
Authors: Árvai Csaba , Mika László T. 
Published: October 2023

Comprehensive SummarySince the discovery of the hydroformylation (oxo‐synthesis or Roelen reaction) and the Reppe‐reaction, the transition metal‐catalyzed carbonylation reactions, providing versatile, facile, and even atom‐economic methods for the selective incorporation of C=O functionality to various skeletons, have gained tremendous importance in synthetic organic chemistry from laboratories to industrial applications. The carbonylation of carbon‐carbon multiple bonds, aromatic halides, triflates, etc., in the presence of various nucleophiles has led the way to produce aldehydes, carboxylic acids, esters, amides, etc., in the fine chemical industry. However, these protocols usually proceed in conventional, fossil‐based, and usually toxic reaction environments. Thus, several attempts have been directed to developing efficient carbonylation methods in alternative, less harmful, non‐fossil‐based and even in renewable reaction media. In this review, we overview the recent applications of alternative solvents such as water, biomass‐based alcohols, γ‐valerolactone (GVL), 2‐methyltetrahydrofuran (2‐MeTHF), ionic liquids (ILs), deep eutectic solvents (DES), alkyl levulinates, limonene, α‐pinene, and dimethyl carbonate as well as fluorous media to improve efficiency, safety and environmentally benign nature of carbonylation protocols.
Directed mean curvature flow in noisy environment
Authors: Gerasimovičs Andris , Hairer Martin , Matetski Konstantin 
Published: October 2023

AbstractWe consider the directed mean curvature flow on the plane in a weak Gaussian random environment. We prove that, when started from a sufficiently flat initial condition, a rescaled and recentred solution converges to the Cole–Hopf solution of the KPZ equation. This result follows from the analysis of a more general system of nonlinear SPDEs driven by inhomogeneous noises, using the theory of regularity structures. However, due to inhomogeneity of the noise, the “black box” result developed in the series of works cannot be applied directly and requires significant extension to infinite‐dimensional regularity structures. Analysis of this general system of SPDEs gives two more interesting results. First, we prove that the solution of the quenched KPZ equation with a very strong force also converges to the Cole–Hopf solution of the KPZ equation. Second, we show that a properly rescaled and renormalised quenched Edwards–Wilkinson model in any dimension converges to the stochastic heat equation.
Therapist self‐disclosure in teletherapy early in the COVID‐19 pandemic: Associations with real relationship and traumatic distress
Authors: Luo Xiaochen , Aafjes‐van Doorn Katie , Békés Vera , Prout Tracy A. , Hoffman Leon 
Published: October 2023

AbstractThe usefulness of therapists' self‐disclosure (TSD) in psychotherapy remains controversial, and little is known regarding the potential risks and benefits of TSD in times of global crisis such as the COVID‐19 pandemic and in teletherapy. We examined two independent samples of therapists (N = 1705; Study 1) and patients (N = 772; Study 2) on their perceptions of increases in TSD during the transition to teletherapy early in the COVID‐19 pandemic (spring 2020). Approximately 20% of therapists and 14% of patients reported perceptions of definite increases in TSD. Therapists' top reasons for increased TSD were therapists' heightened distress and an effort to connect with patients in teletherapy. Importantly, therapist perceptions of their increased TSD were positively related to subjective vicarious trauma, real relationship, psychodynamic theoretical orientation and negatively with humanistic orientation, but not with age, race/ethnicity, length of clinical experience, working alliance, or professional self‐doubt. Patients' perceptions of increased TSD were positively related with patient pandemic‐related traumatic distress and their own self‐disclosure, but not with patient‐reported therapeutic relationship variables. Longitudinally, patients' perceptions of TSD increases predicted higher pandemic‐related traumatic distress at 3‐month follow‐up, after controlling for their baseline traumatic distress and other variables. These results highlighted that increased TSD in teletherapy may be a potential marker for heightened distress in both patients and therapists during a global crisis and a transition to teletherapy. The findings also contrasted the literature and emphasized that therapists, but perhaps not patients, may have considered increased TSD as a reflection of genuine therapeutic connection.
The effect of the irrigant activation protocol on postoperative pain in maxillary incisors with asymptomatic apical periodontitis: A three‐arm randomized clinical trial
Authors: Abbara Mohammad Tamer , Akil Samar , Hamadah Omer , Achour Hassan , Mahayni Ghina , Tolibah Yasser Alsayed 
Published: October 2023

AbstractObjectivesThis study aimed to compare the effects of three irrigation activation systems (IAS) on postoperative pain (PP) in activating three final irrigants: sodium hypochlorite 5.25%, ethylenediaminetetraacetic acid 17%, and chlorhexidine 2%.Materials and MethodsThis parallel randomized clinical trial included referred patients with asymptomatic large‐sized apical lesion incisors. A standard method was followed in the canal cleaning and shaping for all included patients in the study. Then, the patients were randomly assigned (1:1 allocation) into three groups: G1 (n = 20) with passive ultrasonic irrigation activation; G2 (n = 20) with XP‐Endo Finisher file activation; and G3 (n = 20) with diode laser (810 nm) activation. PP was estimated in all groups using a visual analog scale after 1, 3, 7, and 14 days of treatment. Comparisons between the groups were made using the Kruskal−Wallis test, whereas the Mann−Whitney U test was used in the pairwise comparisons.ResultsSixty patients were followed‐up in this trial. There were significant differences between the groups in terms of PP After 1, 3, and 7 days of treatment (p = 0.002, p = 0.017, and p = 0.006, respectively). On the first day of treatment, G3 showed the lowest PP compared with G1 and G2 (p = 0.007 and p = 0.001, respectively). On the third day of treatment, G3 showed less PP compared with G2 (p = 0.005). On the seventh day of treatment, G2 showed the highest PP compared with G1 and G3 (p = 0.012 and p = 0.003, respectively).ConclusionsThe XP‐Endo Finisher file caused the highest PP level especially in the next day and 3 days of the treatment, whereas the diode laser had the lowest PP level during the first week of treatment. It is noteworthy that PP disappeared completely after 2 weeks of treatment with all three IASs.Trial RegistrationThe trial was registered in the ISRCTN registry (Trial ID: SRCTN99457940).
Serum level of vitamin D in patients with recurrent aphthous stomatitis: A systematic review and meta‐analysis of case control studies
Authors: Safari‐Faramani Roya , Salehi Mohsen , Ghambari Haji Shore Saman , Omidpanah Neda 
Published: October 2023

AbstractObjectivesRecurrent aphthous stomatitis (RAS) is an ulcerative condition with unknown etiology. The effect of vitamin D in the etiology of RAS is still a matter of controversy. In this study, we aimed at review the available evidence on the role of vitamin D deficiency in RAS etiology.Material and MethodsPubMed, Cochrane Library for Systematic Reviews, ISI Web of Science, Scopus, and EmBase were systematically searched for evidence on RAS and vitamin D up to January 2020. Retrieved records were screened and assessed by two of the authors independently. Newcastle−Ottawa scale was used to assess the quality of individual studies. AMSTAR tool was used for assessing the quality of the study.ResultsEight studies including 383 healthy control and 352 patients with RAS were eligible for the meta‐analysis. Serum vitamin D levels were significantly lower in RAS patients. The weighted mean difference was −7.90 (95% CI: −11.96 to −3.85).ConclusionsThe results highlighted the importance of vitamin D deficiency in the etiology of RAS. However, more studies are needed to reach a robust decision. The observed association between vitamin D and RAS is probably due to the effect of vitamin D on the immune system.
Increased offspring provisioning by large female fish and consequences for reproductive efficiency
Authors: Koenigbauer S. T. , Höök T. O. 
Published: October 2023

AbstractContemporary fisheries research and management have highlighted the need to protect size and age structures of fish populations. Many studies particularly emphasize a disproportionate contribution of populations' largest, oldest female fish to population‐level recruitment through maternal effects: non‐genetic effects of females on performance of their offspring including through energetic provisioning of eggs. Our study synthesized the effects of increasing female size on offspring performance using a meta‐analysis approach. In a stepwise fashion, we conducted three separate meta‐analyses to estimate the broad‐scale patterns of maternal effects in fish. We synthesized relationships between female size and egg size, egg size and offspring size, and egg size and offspring survival. We tested maternal effects across numerous taxonomic orders and system types including freshwater, diadromous, and saltwater species. We also compared the effects of increasing egg size on offspring performance at different experimental durations. These three meta‐analyses all supported the paradigm that larger females render individual benefits to offspring performance. However, females have finite gonadal energy and space for egg provisioning and must trade off between egg size and fecundity. For the largest females to contribute disproportionately to population recruitment (relative to their gonadal investment), they must utilize their gonadal investment more efficiently than their smaller conspecifics. Using example studies in published literature, we demonstrated how established maternal effects on egg provisioning do not necessarily support greater reproductive efficiency in larger females. Therefore, while larger females do produce larger eggs, which promote offspring growth and survival, we concluded these benefits may not always outweigh relative fecundity costs of larger eggs.
Novel genomic offset metrics integrate local adaptation into habitat suitability forecasts and inform assisted migration
Authors: Lachmuth Susanne , Capblancq Thibaut , Prakash Anoob , Keller Stephen R. , Fitzpatrick Matthew C. 
Published: October 2023

AbstractGenomic data are increasingly being integrated into macroecological forecasting, offering an evolutionary perspective that has been largely missing from global change biogeography. Genomic offset, which quantifies the disruption of genotype–environment associations under environmental change, allows for the incorporation of intraspecific climate‐associated genomic differentiation into forecasts of habitat suitability. Gradient Forest (GF) is a commonly used approach to estimate genomic offset; however, major hurdles in the application of GF‐derived genomic offsets are (1) an inability to interpret their absolute magnitude in an ecologically meaningful way and (2) uncertainty in how their implications compare with those of species‐level approaches like Ecological Niche Models (ENMs). Here, we assess the climate change vulnerability of red spruce (Picea rubens), a cool‐temperate tree species endemic to eastern North America, using both ENMs and GF modeling of genomic variation along climatic gradients. To gain better insights into climate change risks, we derive and apply two new threshold‐based genomic offset metrics—Donor and Recipient Importance—that quantify the transferability of propagules between donor populations and recipient localities while minimizing disruption of genotype–environment associations. We also propose and test a method for scaling genomic offsets relative to contemporary genomic variation across the landscape. In three common gardens, we found a significant negative relationship between (scaled) genomic offsets and red spruce growth and higher explanatory power for scaled offsets than climate transfer distances. However, the garden results also revealed the potential effects of spatial extrapolation and neutral genomic differentiation that can compromise the degree to which genomic offsets represent maladaptation and highlight the necessity of using common garden data to evaluate offset‐based predictions. ENMs and our novel genomic offset metrics forecasted drastic northward range shifts in suitable habitats. Combining inferences from our offset‐based metrics, we show that a northward shift mainly will be required for populations in the central and northern parts of red spruce's current range, whereas southern populations might persist in situ due to climate‐associated variation with less offset under future climate. These new genomic offset metrics thus yield refined, region‐specific prognoses for local persistence and show how management could be improved by considering assisted migration.
Numerical response of predator to prey: Dynamic interactions and population cycles in Eurasian lynx and roe deer
Authors: Andrén Henrik , Liberg Olof 
Published: October 2023

AbstractThe dynamic interactions between predators and their prey have two fundamental processes: numerical and functional responses. Numerical response is defined as predator growth rate as a function of prey density or both prey and predator densities [dP/dt = f(N, P)]. Functional response is defined as the kill rate by an individual predator being a function of prey density or prey and predator densities combined. Although there are relatively many studies on the functional response in mammalian predators, the numerical response remains poorly documented. We studied the numerical response of Eurasian lynx (Lynx lynx) to various densities of its primary prey species, roe deer (Capreolus capreolus), and to itself (lynx). We exploited an unusual natural situation, spanning three decades where lynx, after a period of absence in central and southern Sweden, during which roe deer populations had grown to high densities, subsequently recolonized region after region, from north to south. We divided the study area into seven regions, with increasing productivity from north to south. We found strong effects of both roe deer density and lynx density on lynx numerical response. Thus, both resources and intraspecific competition for these resources are important to understanding the lynx population dynamic. We built a series of deterministic lynx–roe deer models, and applied them to the seven regions. We found a very good fit between these Lotka–Volterra type models and the data. The deterministic models produced almost cyclic dynamics or dampened cycles in five of the seven regions. Thus, we documented population cycles in this large predator–large herbivore system, which is rarely done. The amplitudes in the dampened cycles decreased toward the south. Thus, the dynamics between lynx and roe deer became more stable with increasing carrying capacity for roe deer, which is related to higher productivity in the environment. This increased stability could be explained by variation in predation risk, where human presence can act as prey refugia, and by a more diverse prey guild that will weaken the direct interaction between lynx and roe deer.
Not just range limits: Warming rate and thermal sensitivity shape climate change vulnerability in a species range center
Authors: Beaty Fiona , Gehman Alyssa‐Lois M. , Brownlee Graham , Harley Christopher D. G. 
Published: October 2023

AbstractClimate change manifests unevenly across space and time and produces complex patterns of stress for ecological systems. Species can also show substantial among‐population variability in response to environmental change across their geographic range due to evolutionary processes. Explanatory factors or their proxies, such as temperature and latitude, help parse these sources of environmental and intraspecific variability; however, overemphasizing latitudinal trends can obscure the role of local environmental conditions in shaping population vulnerability to climate change. Focusing on the geographic center of a species range to disentangle latitude, we test the hypothesis that populations from warmer regions of a species range are more vulnerable to ocean warming. We conducted a mesocosm experiment and field reciprocal transplant with four populations of a marine snail, Nucella lamellosa, from two regions in British Columbia, Canada, that differ in thermal characteristics: the Central Coast, a cool region, and the Strait of Georgia, one of the warmest regions of this species' range and one that is warming faster than the Central Coast. Populations from the Strait of Georgia experienced growth reductions at contemporary summertime seawater temperatures in the laboratory and showed stark reductions in survival and growth under future seawater conditions and when outplanted at their native transplant sites. This indicates a high vulnerability to ocean warming, especially given the faster rate of ocean warming in this region. In contrast, populations from the cooler Central Coast demonstrated high performance at contemporary seawater temperatures and high growth and survival in projected future seawater temperatures and at their native outplant sites. Given their position within the geographic center of N. lamellosa's range, extirpation events in the vulnerable Strait of Georgia populations could compromise connectivity within the metapopulation and lead to gaps across this species' range. Overall, our study supports predictions that populations from warm regions of species ranges are more vulnerable to environmental warming, suggests that the Strait of Georgia and other inland or coastal seas could be focal points for climate change effects and ecological transformation, and emphasizes the importance of analyzing climate change vulnerability in the context of regional environmental data and throughout a species' range.
Development of solar radiation prediction model using minimax algorithm
Authors: Kaplan Yusuf Alper 
Published: October 2023

AbstractRecently, many studies are carried out on solar energy (SE) and global solar radiation (GSR) estimation. When the literature is examined, there are many GSR estimation models developed with different algorithms in different regions of the world. Although some of these models are seen to perform acceptable all over the world, the performance of some models differs according to their location. The Minimax algorithm is a decision‐making algorithm that maximizes the winning potential while minimizing the probability of losing. In this study, a new Angstorm model was developed for GSR with minimax algorithm. The most important aspect of this article in terms of originality is that the GSR estimation model is being developed with the minimax algorithm for the first time. The MATLAB program was used while developing the prediction model with the minimax algorithm. Different statistical error tests were used to evaluate the performance of the results. When these test results are evaluated in general, it is seen that the minimax algorithm gives acceptable results in GSR estimation.
Experimental and computational studies of concentration and flow field variation of syngas released
Authors: Li Yongjun , Wang Zhirong , Yin Zhonglin , Guo Pinkun , Fan Rujia 
Published: October 2023

AbstractSyngas is an important chemical energy source with broad application prospects. The main problem with using syngas is its hazards, such as high storage pressure, high dispersion, low mass density, explosive, and toxic. The aim of this article is to find the key factors for the diffusion of syngas leakage and analyze the distribution of the dangerous concentration range from the diffusion behavior and hazard range characteristics of syngas leakage under complex working conditions. Therefore, a syngas leakage experimental bench is established, and a three‐dimensional simulation of syngas leakage was modeled. The results show that the initial pressure is the most critical factor, and the concentration distribution under different initial pressures is significantly different. The time required for carbon monoxide (CO) and hydrogen (H2) to reach their maximum concentration increased as the initial pressure or temperature decreased. The volume ratio had little effect on the time when CO and H2 reached the maximum concentration. In the horizontal direction, CO diffused further than H2 in the buoyant jet. The max volume fraction of H2 and CO did not exceed 1% and 2.5%, respectively. The research results are expected to give guidelines for the safety protection and standard improvement of syngas leakage.
Ecosystem engineering by periphyton in Alpine proglacial streams
Authors: Roncoroni Matteo , Ballu Aurélien , Selitaj Adrijan , Mancini Davide , Miesen Floreana , Aguet Marc , Battin Tom I. , Lane Stuart N. 
Published: October 2023

AbstractStream periphytons are candidate ecosystem engineers in proglacial margins. Here, we quantify the extent to which they are engineers for the case of hillslope‐fed tributaries in the terrace zones of proglacial margin alluvial plains. Candidate ecosystem engineering effects relate to periphyton‐driven changes in (1) vertical infiltration of water, which in turn could aid plant colonization and hence local surface stabilization, and (2) near‐bed hydraulics, notably near‐bed turbulence properties. We ran two flume experiments in parallel in the proglacial margin of the Otemma glacier (Switzerland), reproducing the environmental conditions found in terrace streams. In both experiments, we followed periphyton development on initially bare sediments for 28 days. Then, whilst the experiment continued undisturbed in one flume, in the second and over a further 26 days, we introduced disturbances in the form of desiccation events. Throughout the entire experiment length, we collected imagery for close‐range SfM‐MVS photogrammetry, data on vertical infiltration, and near‐bed hydraulics. The experiments showed that periphyton development significantly changed the streambed properties. First, periphyton development over the timescale of a few days reduced bed roughness and clogged the benthic interstitial space, reducing water infiltration. These effects were insensitive to the disturbance regime. Second, the changes in streambed roughness modified the near‐bed turbulent structures, and this resulted in a reduction of bursting events and in the modification of the turbulent kinetic energy at the near‐bed layer. The latter, however, appeared to be less important in these environments as compared with the impacts on infiltration. Given the low water retaining capacity of glacial sediments, the observation that periphyton can reduce vertical infiltration explains wider observations of their importance in glacial floodplains where vegetation succession is critically constrained by water availability. The relatively reduced impacts on near‐bed turbulence also contribute to explaining why disturbance in proglacial margin streams remains a key limit on ecological succession.