bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spatial memory encoding is associated with the anterior and posterior hippocampus: An fMRI activation likelihood estimation meta‐analysis
Authors: Sullivan Madeline A. , Fritch Haley A. , Slotnick Scott D. 
Published: August 2024

AbstractIt has been hypothesized that differential processing occurs along the longitudinal (anterior–posterior) axis of the hippocampus. One hypothesis is that spatial memory (during both encoding and retrieval) is associated with the posterior hippocampus. An alternative hypothesis is that memory encoding (either spatial or nonspatial) is associated with the anterior hippocampus and memory retrieval is associated with the posterior hippocampus. Of importance, during spatial memory encoding, the spatial–posterior hypothesis predicts posterior hippocampal involvement, whereas the encoding–retrieval hypothesis predicts anterior hippocampal involvement. To distinguish between these hypotheses, we conducted a coordinate‐based fMRI activation likelihood estimation (ALE) meta‐analysis of 26 studies (with a total of 435 participants) that reported hippocampal activity during spatial memory encoding and/or spatial memory retrieval. Both spatial memory encoding and spatial memory retrieval produced extensive activity along the longitudinal axis of the hippocampus as well as the entorhinal cortex, the perirhinal cortex, and the parahippocampal cortex. Critically, the contrast of spatial memory encoding and spatial memory retrieval produced activations in both the anterior hippocampus and the posterior hippocampus. That spatial memory encoding produced activity in both the anterior and posterior hippocampus can be taken to reject strict forms of the spatial–posterior hypothesis, which stipulates that all forms of spatial memory produce activity in the posterior hippocampus, and the encoding–retrieval hypothesis, which stipulates that all forms of encoding versus retrieval produce activity in only the anterior hippocampus. Our results indicate that spatial memory encoding can involve the anterior hippocampus and the posterior hippocampus.
Couette flow of viscoelastic dusty fluid through a porous oscillating plate in a rotating frame along with heat transfer
Authors: Ali Gohar , Ahmad Matin , Ali Farhad , Khan Arshad , Khan Ilyas 
Published: August 2024

AbstractUsually, suction/blowing is used to control the channel's fluid flow, which is why this worth‐noting effect is considered. The fluid velocity is considered along the x‐axis due to the oscillations of the right plate. The thermal effect on the flow due to the heated right plate is also considered. The fluid and dust particles have complex velocities due to the rotation, which are the sum of primary and secondary velocities. To convert the aforementioned physical phenomenon into mathematical form, partial differential equations are used for modeling the subject flow regime. Appropriate nondimensional variables are employed to nondimensionalize the system of governing equations. With the assistance of assumed periodic solutions, the system of partial differential equations is reduced to a system of ordinary differential equations which is then solved by the perturb solution utilizing Poincare–Lighthill perturbation techniques. The engineering interest quantities, the Nusselt number, and skin friction are also determined. The impact of various parameters on skin friction, viscoelastic fluid, and dust particle velocity profiles is also investigated. It is worth mentioning that suction controls the boundary layer to grow unexpectedly, even in the resonance case. The obtained solution is also valid in the case of injection. The radiation parameter, Grashof number, and second‐grade parameter cause a decrease in skin friction as their values increase. On the other hand, the suction, rotation, magnetic, dusty fluid, and Reynolds numbers cause a rise in skin friction.
The term structure of interest rates as predictor of stock market volatility
Authors: Megaritis Anastasios , Kontonikas Alexandros , Vlastakis Nikolaos , Triantafyllou Athanasios 
Published: August 2024

AbstractWe examine the forecasting power of the volatility of the slope of the US Treasury yield curve on US stock market volatility. Consistent with theoretical asset pricing models, we find that the volatility of the slope of the term structure of interest rates has significant forecasting power on stock market volatility for forecasting horizon ranging from 1 up to 12 months. Moreover, the term structure volatility has significant forecasting power when used for volatility predictions of the intra‐day returns of S&P500 constituents, with the predictive power being higher for stocks belonging to the telecommunications and financial sector. Our forecasting models show that the forecasting power of yield curve volatility is higher to and absorbs that of Economic Policy Uncertainty and Monetary Policy Uncertainty, showing that the main channel through which the yield curve volatility affects the stock market is not only related with uncertainty about monetary policy actions or policy rates, but also with uncertainty regarding the future cash flows and dividend payments of US equities. Lastly, we show that the forecasting power of term structure volatility significantly increases during the post‐2007 Great recession period which coincides with the Fed adopting unconventional monetary policies to stimulate the economy.
A qualitative and quantitative cross‐sectional study on the past, present, and future of vaginal delivery: Turkey
Authors: Keskin Fatma 
Published: August 2024

AbstractObjectiveThe current study focused on predicting future trends in obstetrics by examining obstetricians' approaches to specific challenging vaginal delivery that require special experience, such as breech presentation, macrosomic fetus, twin pregnancy, and vacuum use, compared with their residency training experience.MethodsThe cross‐sectional study was conducted in two phases. The first phase was qualitative and the second phase was quantitative. The “interview” and “survey” techniques served as data collection tools. In total, 20 obstetricians participated in the interviews, and 400 obstetricians took part in the survey. Data from the interviews were analyzed using the Maxqda 2020 qualitative data analysis program, and survey data were analyzed using SPSS version 25.0.ResultsOver the past 2 decades, there has been a gradual shift from vaginal deliveries to cesarean deliveries in cases involving breech presentation, macrosomic fetus, twin pregnancy, and vacuum use. While medicolegal concerns are undeniable, the prevalent belief among obstetricians that cesarean delivery is safer than vaginal delivery significantly influences this trend. Comparatively, young obstetricians often complete their residency training without acquiring sufficient knowledge and skills in vaginal delivery.ConclusionYoung obstetricians currently lack adequate experience in managing vaginal deliveries for breech presentation, macrosomic fetus, twin pregnancy, and vacuum use. This experience is at risk of disappearing entirely within the next decade as senior obstetricians retire. Policymakers should take this into consideration when shaping future healthcare policies.
Stomatogenesis in the leaves and fruits of Dacryodes edulis (G. Don) Lam. (Burseraceae)
Authors: Karatela V. V. , Gill L. S. 
Published: August 2024

SummaryEpidermal structure and stomatal development in the leaves and fruits of Dacryodes edulis has been reported for the first time. The leaves are hypostomatic. The mature stomata are of anomocytic, cyclocytic and paracytic type. The ontogeny of stomata in fruits is agenous, and eumesogenous, hemiperigenous and eumesoperigenous in the leaves.
A taxonomic survey of the genus Sinodielsia Wolff including a description of two new species
Authors: Kljuykov E. V. 
Published: August 2024

SummaryThe taxonomic survey of the genus Sinodielsia Wolff covers three species, including two new ones. Sinodielsia microloba Kljuykov is described from Tibet and S. digitata Kljuykov from Bhutan. Two names, Physospermopsis cruciata Wolff and Ph. forrestii Wolff have been reduced to synonyms of the species Sinodielsia yunnanensis. Syunnanensis has now been established in three locations (all in Yunnan). Genus Sinodielsia is distributed in Bhutan, Tibet and Yunnan.
The systematic position of the genusCalyptrothecaGilg(Portulacaceae)
Authors: Nyananyo Bio Louis 
Published: August 2024

SummaryCalyptrotheca somalensisGilg. andC. taitense(Pax&: Vatke) Brenanwere described in 1897 and 1893 respectively, both from tropical East Africa. The two species have been placed into either the Capparaceae or the Portulacaceae by different authors. Evidence from gross morphology, leaf flavonoids, palynology and seed morphology and anatomy demonstrates that these two taxa belong to the Portulacaceae.
A note on stomatal ontogeny of Eichhornia crassipes (Mart.) Solms. (Pontederiaceae)
Authors: Nyawuame H. G. K. , Gill L. S. 
Published: August 2024

SummaryOccurrence of Eichhornia crassipes (Mart.) Solms. in Nigerian water ways is reported here for the first time. Epidermal morphology and stomatal ontogeny of E. crassipes has been found to be hexacytic with hemi‐mesoperigenous ontogeny.
Die Gattung Tayloria Hooker in der Moosfiora Rumäniens
Authors: Mohan Gh. 
Published: August 2024

SummaryIn the paper a monographic study is offered on the genus Tayloria Hooker, represented in the Romanian bryoflora. Based on original morphological, anatomical, ecological and arealographical investigations, the data confirm or complete the diagnoses of different Romanian and foreign authors.
Chemical polymorphism of essential oil of Piper betle L. grown in India
Authors: Rawat A. K. S. , Banerjee R. , Balasubrahmanyam V. R. 
Published: August 2024

SummaryBetelvine (Piper betle L.) is an important cash crop of India. The leaves have been traditionally used for chewing purpose along with other condiments. Several medicinal properties like digestive, carminative, stimulent, antiseptic, antifungal activities have been attributed to betel leaf. The essential oil from leaves of two important cultivars of Piper betle L. viz. ‘Bangla’ and ‘Meetha’ were analysed by Gas liquid chromatography and thin layer chromatography. The results showed that these cultivars could be identified on the basis of chemical composition of essential oil. Anethole (32.2%) is present in cv. ‘Meetha’ as a major constituent while it is absent in ‘Bangla’ cultivar. In ‘Bangla’ eugenol is major constituent (82%) in the essential oil.The leaves of these cultivars could also be identified on the basis of leaf morphological characters. ‘Bangla’ leaves are cordate to roundish with prominent basal lobe while those of ‘Meetha’ are roundish and have acute leaf tip with characteristic yellow spots on leaf lamina.
Distribution Pattern of Phytochemical Constituents in some Species of Crotalaria and its Taxonomic Significance
Authors: Anuradha S. M.J. , Reddy M. Satyanarayana , Radhakrishnaiah M. 
Published: August 2024

SummaryThe chemotaxonomy of seven species of Crotaloria spread over five sections is studied with reference to the distribution pattern of secondary metabolites, phenolic constituents and amino acid. The chemical data arc suggestive of amalgamation of the sections Ditfusae, Eriocarpae and Trifoliatae Polyspermae, retention of Trifoliatae Despermae and Calycinae. The quantified chemotaxonomical data of seven species of Crotalaria indicate close relationship among them. The cluster analysis indicates the segregation of the species into four groups.
Protective effects of syringic acid in nonalcoholic fatty liver in rats through regulation of Nrf2/HO‐1 signaling pathway
Authors: Zhang Simiao , Zheng Sheng , Li Ya , Yang Juan , Mao Xiaozhou , Liu Tao , Zhang Qiuxin , Fu ZhiPeng , Zhu Xing , Xu Long 
Published: August 2024

AbstractNonalcoholic fatty liver disease (NAFLD) is an alarming ailment that leads to severe liver damage and increases the risk of serious health conditions. The prevalence of NAFLD due to oxidative stress could be mitigated by plant‐derived antioxidants. This study aims to investigate the effects of syringic acid (SA) on NAFLD in a high‐fat diet (HFD) rat model. Twenty‐four rats were randomly divided into four groups (n = 6): normal control, HFD, SA‐administered HFD, and positive control SA on a normal diet. Rats in the normal control and positive control groups received a normal diet, and the remaining groups received an HFD for 8 weeks. SA (20 mg/kg b.w.) was orally (gavage) administered for 8 weeks. Lipid profiles were controlled by SA against HFD‐fed rats (p < 0.05). SA reduced the serum aspartate aminotransferase and alanine aminotransferase levels by 70%–190%. SA also suppressed pro‐inflammatory cytokines and attenuated histopathological and immunohistochemical changes against HFD‐fed rats. SA reversed oxidative stress by suppressing the malondialdehyde formation by 82% and replenished the nonenzymatic and enzymatic antioxidant activities (p < 0.05). Gene expressions of nuclear factor‐erythroid 2‐related factor/heme oxygenase 1 (Nrf2/HO‐1) were elevated in SA‐treated rats. Ameliorative effects of SA on NAFLD induced by an HFD in rats were prominent through the reversal of oxidative stress and inflammation, regulated by an intrinsic mechanism of defense against oxidative stress, the Nrf2/HO‐1 pathway.
Energetics and spectroscopic studies of CNO(‐)(H2O)n clusters and the temperature dependencies of the isomers: An approach based on a combined recipe of parallel tempering and quantum chemical methods
Authors: Naskar Pulak , Talukder Srijeeta 
Published: August 2024

AbstractA system associated with several number of weak interactions supports numerous number of stable structures within a narrow range of energy. Often, a deterministic search method fails to locate the global minimum geometry as well as important local minimum isomers for such systems. Therefore, in this work, the stochastic search technique, namely parallel tempering, has been executed on the quantum chemical surface of the system for –8 to generate global minimum as well as several number of local minimum isomers. IR spectrum can act as the fingerprint property for such system to be identified. Thus, IR spectroscopic features have also been included in this work. Vertical detachment energy has also been calculated to obtain clear information about number of water molecules in several spheres around the central anion. In addition, in a real experimental scenario, not only the global but also the local minimum isomers play an important role in determining the average value of a particular physically observable property. Therefore, the relative conformational populations have been determined for all the evaluated structures for the temperature range between 20K and 400K. Further to understand the phase change behavior, the configurational heat capacities have also been calculated for different sizes.
Politics or need? Explaining state climate change policy adoption, 2007–2016
Authors: Zhang Xiaodan , Morris John C. , Fisk Jonathan M. , Mayer Martin K. 
Published: August 2024

AbstractAs climate change grows in importance on state policy agendas around the country, state responses are brought into focus. States may choose to address climate change through legislative action, executive order, administrative action, or not at all. Our research seeks to determine the state factors that lead states to favor one path to action over another. To this end, we test three explanations: a political explanation that focuses on political factors present within a state; a contextual model, and a policy need explanation that focuses on a state's vulnerability to the deleterious effects of climate change. We control for a variety of economic, social, geographic, and demographic variables in all models. We find that legislative and executive decisions tend to be driven by political considerations, although modified by extreme need.
Mixed methods on adverse childhood experiences predicting transitional and recurrent homelessness
Authors: Boesveldt Nienke F. , van Dungen Willemijn , de Castro Bram O. 
Published: August 2024

AbstractAimsResearch has associated lack of parental care, physical abuse, and parental substance abuse to homelessness, with the presence of two or more such factors dramatically increasing one's chances of becoming homeless as an adult. Less clear is which (cumulation of) factors may mediate the difference between transitional and recurrent homelessness.MethodsQuantitative analysis of four risk factors—addiction, weak social network, criminal activity, psychopathology—among 69 transitionally and recurrently homeless (RH) adults, followed by in‐depth qualitative analysis of adverse childhood experiences (ACEs) among 30 selected participants.ResultsRH participants had higher cumulative risk and a higher prevalence and broader range of ACEs than transitionally homeless participants, with the prevalence of childhood physical abuse marking the greatest difference between the two groups. Recurrent homelessness was also correlated with addiction to hard drugs, criminal activity, and weak social networks.ConclusionLongitudinal and intervention studies in larger groups are needed to assess causality.
Elastographic and vascular findings of uterine myomas assessed by ultrasound
Authors: do Amaral Coutinho Cristiana , Castro Pedro Teixeira , Lopes Flávia Paiva , de Freitas Lima Luiz Alberto Coutinho , Araujo Júnior Edward , Aranda Osvaldo Luis , de Araújo Luiz Felipe Bittencout , Marchiori Edson , Werner Heron 
Published: August 2024

AbstractObjectiveThe objectives of this study were to evaluate the vascularization pattern of uterine myoma (UM) by ultrasonography using Superb Microvascular Imaging (SMI) and tissue stiffness elastography.MethodA prospective and cross‐sectional study was carried out between March 2020 and December 2022 among women with clinical and ultrasound diagnosis of UM who would subsequently undergo radiofrequency ablation. Ultrasound examination was performed using both transvaginal and transabdominal routes. UM vascularization pattern was assessed by power Doppler (PD) and SMI, while elastographic pattern was assessed by shear wave (SWE) and strain (STE). FIGO classification, location, and measurement of the largest UM were also described.ResultsA total of 21 women diagnosed with UM were evaluated. There was a predominance of nulliparous women and 20 women (95.2%) reported desire for pregnancy. Of the 18 women with abnormal uterine bleeding, 15 (83.3%) had abdominal cramping. As far as previous treatment, 7 (33.3%) had undergone myomectomy for other UM. The mean uterine and UM volumes were 341.9 cm3 (90–730) and 126.52 cm3 (6.0–430), respectively. There was a predominance of hypoechogenic lesions (90.5%). There was also preponderance of UM in the FIGO 2–5 classification (n = 9; 42.9%). Vascularization patter was mostly moderate (score 2) in 9 cases (42.9%). The majority of UM were considered to have intermediate stiffness (n = 10; 47.6%).ConclusionThe majority of UM showed vascularization and moderate stiffness. A relationship was observed between the stiffness of the UM assessed by elastography and its FIGO classification.
Palynological investigation of some genera of Cichorieae (Asteraceae) in Iran
Authors: Pakravan Maneezheh , Safavi Seyed Reza , Zarei Roghaieh , Tavakoli Zahra , Ghahremaninejad Farrokh , Noroozi Maryam , Bokaee Zahra Nazem , Alimadadi Mina , Ghodusian Najmeh , Hosseini Fatemeh , Moradi Fereshteh 
Published: August 2024

AbstractThe pollen morphology of 33 species belonging to the genera Lactuca, Launaea, Cicerbita, Sonchus, Condrilla (tribe Cichorieae: Asteraceae) from Iran were studied with light and electron microscopies. The pollen grains of the investigated taxa are almost oblate‐spherical to prolate‐spherical, the shapes are circular in equatorial view, hexagonal in polar view, only Sonchus species are triangular or quadrangular in polar view, isopolar, symmetrical and trizonocolporate, except Sonchus and Chondrilla species, which have tri‐ to tetrazonocolporate pollen grains, and echinolophate.The size and number of spines in the polar area and the number of spines in the paraporal ridges and equatorial ridges proved to be the most taxonomically authentic characteristics in this study. Three pollen types were distinguished, as in alignment with previous studies. Cluster analysis by Ward method based on 10 quantitative morphological characteristics of pollen grains revealed that the species could be grouped based on the pollen characteristics. Moreover, three species of Cicerbita including Cicerbita scoparia (Rech. f. & Köie) Kitam, C. rechingeriana (Tuisl) Coșkunç., M. Güzel & N. Kilian and C. microcephala (DC.) M. Güzel, Coșkunç. & N. Kilian were recorded for the first time in Iran. Although the characteristics of the pollen grains were useful for distinguishing the species in sub‐tribes, in some cases, this did not confirm recent phylogenetic results. The pollen characteristics described in this study provide data that may be useful for future systematic studies aiming to complete the knowledge on Cichorieae species.Research Highlights
In the present study, the pollen morphology of 33 species belonging to five genera of the Cichorieae are investigated with scanning electron microscopy and 12 species are analyzed for the first time.
The cluster analysis based on the quantitative morphological characteristics of pollen grains revealed that the species could be grouped based on the pollen characteristics.
In addition, three species of Cicerbita are reported for the first time in Iran.
Public utility obstacles and labor productivity growth: The moderating effect of national culture
Authors: Jiang Shenyang , He Huan , Liu Xiaowei , Huo Baofeng 
Published: August 2024

AbstractOperational challenges arising from public utility obstacles are widespread globally, leading to production disruptions, decreased sales, and escalated logistics costs, ultimately contributing to a decline in firm labor productivity growth. Despite the criticality of this issue, there is a scarcity of studies in the field of operations management that investigate factors capable of mitigating these adverse impacts. Taking power outages and transportation obstacles as pivotal examples, our study aims to examine whether national culture can moderate the impact of public utility obstacles on firm labor productivity growth. To achieve this objective, we conduct an empirical analysis using a multi‐country dataset from the World Bank Enterprises Survey, which covers detailed firm‐level information across 28 industries in 41 countries, with a total of 17,227 firm‐year observations. Our findings indicate that the detrimental effects of power outages and transportation obstacles on firm labor productivity growth are contingent on various dimensions of national culture. Specifically, cultural power distance and uncertainty avoidance would amplify the negative impact of power outages, whereas long‐term orientation would alleviate this impact. Meanwhile, individualism and masculinity can help mitigate the adverse effects of transportation obstacles. Our results provide valuable insights for managers.