bluuebunny/crossref_metadata_2025_split huggingface dataset:
Attitude towards Learning Communication Skill among Dental Interns in Davanagere City: A Cross-sectional Survey
Authors: Yavagal PC , Raj R , Kateel P , Mrunal SP , Diwakar NR , Lokapur RM 
Published: March 2023

Background:
Current education systems including dental education are focusing on communication, leadership, and team-building skills; hence, it is imperative to understand the students’ perspectives and willingness to learn communication skills during their professional course.

Aim:
The aim of the study was to assess the attitude towards learning communication skill among dental interns in Davanagere city.

Methods:
A cross-sectional questionnaire survey in a dental college setting was conducted among 125 dental interns of Davanagere city. Data were collected pertaining to age, gender, academic performance in the final-year BDS, self-perceived level of communicating skill, and attitude towards learning communication skill using a pretested study pro forma and Dental Communication Skills, Attitude Scale questionnaire.

Statistical Analysis:
Descriptive statistics were generated in terms of percentages and mean attitude scores. Student’s unpaired t-test, one-way ANOVA test, and Pearson’s correlation test were used for the analysis of data. The significant level was set at P < 0.05.

Results:
The mean positive attitude score of the interns was 51.71 ± 5.10, and the mean negative attitude score was 28.15 ± 4.67. There was no significant difference (P > 0.05) in the mean attitude scores between males and females. Dental interns’ attitude towards learning communication skill was not related to their self-reported communication skill and academic performance (P > 0.05).

Conclusion:
Dental interns had a high positive attitude towards learning communication skill which were not related with their self-reported communication skill and academic performance.
Impact of the COVID-19 pandemic lockdown on physical activity, physiological function, and psychological well-being among community-dwelling older people
Authors: Ganvir Shyam Devidas , Nikhade Nitin S. , Sidhaye Aishwarya S. , Vate Chetana N. , Shastri Kshipra R. 
Published: March 2023

Background:
Old age is an important period in the development stage of a human being, and the older persons become more vulnerable and are prone to develop physical and psychological ailments. Psychological well-being has been examined as an indicator of successful adaptation during old and really adulthood. Regular physical activity improves mental health reducing the risk of depression, cognitive decline, and delaying the physiological changes during aging.

Purpose:
The purpose of this study was to find out the impact of coronavirus disease 2019 pandemic lockdown on selected physical, physiological, and psychological variables among community-dwelling older people.

Materials and Methods:
One hundred and thirty participants were evaluated using the sit and reach test, 30-s chair-rise test, pulmonary function test, 2-min step test, and Ryff's psychological well-being scale.

Results:
Data were analyzed using GraphPad In Stat version 3.10, 32 bit for Windows. When compared with normative values, a significant difference was found in all the variables (P = 0.005).

Conclusion:
The patients have changes/alterations in all the physical, physiological, and psychological variables.
Validity and reliability of the Persian version of greenspan social-emotional growth chart
Authors: Soleimani Farin , Azari Nadia , Sajedi Firoozeh , Kraskian Adis , Rahmani Nahid , Rassafiani Mehdi , Nobakht Zahra 
Published: March 2023

Background:
The estimated prevalence of mental health disorders in children and adolescents is between 10% and 20%. Furthermore, a quarter of very premature infants exhibit socioemotional delays in infancy and childhood. The objective of this study was to determine the validity and reliability of Greenspan social-emotional growth chart (GSEGC) in Persian children aged 1–42 months.

Materials and Methods:
After translation procedures, the face validity, content validity, construct validity, test–retest reliability, and internal consistency of the GSEGC questionnaire were evaluated. The quality of translating items was obtained using the suggestions of the research group. The face validity of the GSEGC was performed by interviewing with 10 mothers in the target group. To evaluate content validity quantitatively, content validity ratio (CVR) and content validity index (CVI) were used after reviewing the face and content validity and pilot study, 264 parents of children aged 1–42 months completed the GSEGC questionnaire to assess the construct validity and internal consistency. In order to determine the test-retest reliability, after 2 weeks, 18 parents completed the questionnaire again.

Results:
Eleven questions were changed according to the interviews (questions 1–6, 9–11, and 15–16). The lowest CVR was related to items 30 and 20 (0.636), and other items had an acceptable CVR. The lowest CVI value was related to item 1 of clarity and simplicity (0.818), and other items had an acceptable CVI. Intra-class correlation coefficient was 0.988 for all items of questionnaire. Furthermore, Cronbach's alpha coefficient was 0.952 for all items. In factor analysis, two factors were extracted from the items in questionnaire.

Conclusion:
The Persian version of GSEGC questionnaire has acceptable face, content and, constructs validity, test-retest reliability and high internal consistency in the target population. Therefore, the Persian version of the GSEGC can be used as a tool to assess 1–42 months sensory processing and socio-emotional development.
The effectiveness of a cognitive-plus-motivational reading intervention: A multiple-baseline study with four pupils at-risk for reading difficulties
Authors: McBreen Miriam , Savage Robert 
Published: March 2023

AimsWe aimed to examine the impact of supplementing cognitive reading intervention with supports for reading motivation on the reading motivation (reading interest and self-efficacy) and reading fluency of four Year four pupils at-risk for reading difficulties.Method/rationaleCase studies of four pupils at-risk for reading difficulties were conducted using a multiple-baseline across-participants design. The effects of a combined Cognitive-plus-Motivational intervention (experimental phase) were compared to those of a Cognitive-Only intervention (baseline phase) using probes for reading fluency, interest, and self-efficacy. Scores on each probe were plotted and analysed by combining visual analysis and the Process Control Chart method of analysis.FindingsResults suggest that compared to a Cognitive-Only intervention, the Cognitive-plus-Motivational intervention improved the fluency of three participants, and the interest and self-efficacy of two out of four participants. Findings provided insight into individual patterns of response to the intervention, with the greatest impact on fluency observed for students with the lowest initial reading skills.LimitationsCaution is needed in generalising findings due to the study’s small sample size, the lack of a control group and the potential presence of experimenter bias.ConclusionsThe findings presented here provide preliminary support for the benefits of supplementing reading intervention with instruction to foster reading motivation on the outcomes of pupils at-risk for reading difficulties and provide insight into patterns of individual response to motivational intervention.
Isocrates, Hieronymus Wolf and Juan Luis Vives
Authors: Tournoy Gilbert 
Published: March 2023

This contribution starts with a detailed presentation of the German humanist Hieronymus Wolf (1516-1580) and his life-long involvement with the Athenian rhetorician Isocrates (436-338 BCE). It focuses further on the relation between Wolf and Juan Luis Vives, and especially on the tactful way in which Wolf dealt with a puzzling error by Vives in his Latin letter to Cardinal Wolsey introducing his Latin translations of Isocrates’s Areopagiticus and Nicocles Vives had indeed affirmed that Nicocles was king of Salamis, an island of the Aegean Sea, whereas in reality he was king of Salamis, a city of Cyprus and lived in the fourth century BCE.
Reciprocal 13C‐Labeling: A Method for Investigating the Catabolism of Cosubstrates
Authors: Christensen Bjarke , Nielsen Jens 
Published: July 2002

AbstractThe principle of reciprocal labeling is to use a uniformly 13C‐labeled substrate as the primary carbon source and a naturally labeled cosubstrate. Metabolites derived from a naturally labeled cosubstrate, in this case amino acids, can then be identified by their relatively lower content of 13C, and information on the degradation pathway can be deduced. The technique is based on GC–MS measurements of amino acid labeling patterns, making the technique well suited for investigating the relative importance of amino acid biosynthesis and amino acid uptake from the medium, as the 13C content of the amino acids incorporated into biomass is a direct measure of the amino acid biosyntheses. The technique is illustrated by the investigation of the degradation of phenoxyacetic acid, a medium component that is essential for production of penicillin V by Penicillium chrysogenum. Glucose was used as the uniformly labeled primary carbon source.
A randomized double‐blind placebo‐controlled study with subcutaneous recombinant human erythropoietin in patients with low‐risk myelodysplastic syndromes
Authors:   I talian C ooperative S tudy G roupfor rHuEpo in M yelodysplastic S yndromes
Published: July 2002

To evaluate the effect of recombinant human erythropoietin (rHuEpo) on the haemoglobin level and transfusion requirement in low‐risk myelodysplastic syndromes (MDS), 87 patients were enrolled in a randomized double‐blind placebo‐controlled study. 44 patients were assigned to epoetin α (150 U/kg/d s.c. for 8 weeks) and 43 to placebo arms. MDS types were homogenous in both groups: refractory anaemia (RA) 47.7–48.8%, refractory anaemia with ringed sideroblasts (RAS) 20.5–25.6%, refractory anaemia with excess of blasts (RAEB) (blasts < 10%) 31.8–25.6%.14/38 evaluable patients responded to epoetin α versus 4/37 to placebo (P = 0.007). 50% of RA responded to epoetin α versus 5.9% to placebo (P = 0.0072), RAS 37.5% v 18.2% (P = 0.6) and RAEB 16.7% v 11.1% (P = 1.00). 60% of non‐pretransfused patients responded to epoetin α (Hb 8.35 ± 0.73 to 10.07 ± 1.87 g/dl), whereas a slight decrease was observed in the placebo group (8.4 ± 0.66 to 8.19 ± 0.92 g/dl) (P = 0.0004). Percentage of transfused patients was similar in both arms. Basal erythropoietin (Epo) serum levels > 200 mU/l predicted for a non‐response. At week 4 sTfR levels were increased > 50% in responders (P = 0.013), whereas an increase < 18% predicted for non‐response (P = 0.006). Leucocyte and platelet counts were not influenced by epoetin α treatment. Adverse events occurred in 31.8% of the rHuEpo‐treated versus 42.9% of the placebo‐treated patients (P = 0.2), and seven patients did not complete the course. In conclusion, rHuEpo was effective in the treatment of low‐risk MDS. RA subtype, no transfusions prior to rHuEpo therapy, and low basal Epo levels were associated with higher probability of response. Soluble transferrin receptor level at the fourth week was an early predictor of response.
The influence of a new magnon-electron coupling on the temperature dependence of resistivity in disordered magnetic metals (abstract)
Authors: Lutovinov V. S. 
Published: July 2002

It is well known that the anharmonic interaction between quasiparticles controls both the dynamic and transport properties of solids. Recently it was shown that paramagnetic impurities induce indirect magnon-magnon and magnon-phonon interactions in dielectric magnetic materials.1 These anharmonic couplings of an ‘‘impure’’ origin explain the unusual (peaklike) temperature dependence of magnon and phonon relaxation rates in magnetic dielectrics. Later, this idea was applied to disordered ferromagnetic metals and it was shown that in metals magnetic impurities induce effective coherent magnon-electron coupling2 which changes radically the picture of the conduction electron behavior in a weak localization regime. The aim of the present paper is to show that the novel coupling between magnons and conduction electrons results in a maximum in temperature dependent resistivity and is responsible for the nonmonotonous behavior of R(T), observed recently. The mechanism for coupling between magnons and conduction electrons due to impurity degrees of freedom is as follows. The RKKY interaction couples the host spins with the impurity ones, which in turn are coupled to the conduction electrons. In concentrated disordered magnetic metals this indirect coupling between magnons and electrons is stronger than the starting one (for the pure system) at low temperatures. The amplitude of effective magnon-electron coupling is proportional to the impurity subsystem magnetic moment and, hence, to the impurity concentration and to the impurity spin polarization &lt;σ≳=tanh (E/2T), where E is the impurity local mode energy. In the range T≪E this mechanism gives R(T)∼T2, while in the range T≫E it gives R(T) ∼ T−1, with an obvious maximum in the intermediate range T≂E. The interplay of the mechanism under consideration with the weak localization mechanism (and/or Coulomb interaction) gives a minimum in resistivity in the low-temperature range.
An additional minimum at higher temperature is inevitable because of the interplay between the effective magnon-electron interaction of an ‘‘impure’’ origin and the usual (starting) magnon-electron interaction. Namely this temperature dependence was observed experimentally in Fe80−xCrxB20.3
Conformation and Configuration
Authors: Tonelli Alan E. 
Published: March 2023

Abstract

The unique feature of polymers is the flexibility of their long chains, achieved by rotation about their many backbone bonds, which enable them to assume an extremely large number of different Conformations. This is the source of their unique material behaviors, such as rubber‐like elasticity and their time and processing dependencies. Polymer conformations and material properties depend upon their Configurations, among which are the mode of enchainment of diene monomers, regiosequences (directions of monomer insertion), the stereosequences (stereochemical arrangements of atoms in the polymer chain), co‐monomer sequences of vinyl polymers, branches, and cross‐links. Polymer configurations cannot be altered without breaking and reforming their covalent bonds. In this article, we describe how the conformational characteristics of polymers can be rigorously treated, with account explicitly taken of their configurations, and how various conformationally averaged chain properties can be connected to the behaviors of their materials to allow improved structure–property relations. As examples, because
13
C NMR resonances depend on local polymer microstructures, the average bond conformation probabilities calculated for each microstructure can be used to assign their resonances. The applied to its dilute solution (the Kerr‐Effect) is very sensitive to the Configuration/Macrostructure of the overall polymer chain. When compared to the molar Kerr constants (mK) calculated for chains possessing the microstructures determined by
13
C NMR, the Macrostructures or complete molecular architectures of polymer chains may be revealed.
Piezoelectric Polymers
Authors: Liu Yang , Wang Qing 
Published: March 2023

Abstract
Piezoelectric polymers are promising alternatives to perovskite ferroelectrics to develop soft and flexible sensors, actuators, robotics, and energy harvesters due to low cost, flexibility, biocompatibility, smaller acoustical impedance and so on. This article provides an update on the major advancements in the development of poly(vinylidene fluoride)‐based ferroelectric polymers for piezoelectric applications and summarizes the physical models used to understand the negative longitudinal piezoelectric coefficients. We address the fundamentals in understanding of the piezoelectric effect in other piezoelectric polymers and also discuss the piezoelectric polymer‐based devices.
Incorporating Wireless Strategies to Wearable Devices Enabled by a Photocurable Hydrogel for Monitoring Pressure Information
Authors: Guo Yunjian , Yin Feifei , Li Yang , Shen Guozhen , Lee Jong‐Chul 
Published: March 2023

AbstractAdvances in emerging technologies for wireless collection and the timely analysis of various information captured by wearable devices are of growing interest. Herein, a crosslinked ionic hydrogel prepared by a facile photocuring process is proposed, which allows wearable devices to be further incorporated into two wireless integrated systems for pressure monitoring applications. The device exhibits a simplified structure by effectively sharing functional layers, rather than conventional two separate combinations, offering the salient performance of iontronic sensing and electrochromic properties to simultaneously quantify and visualize pressure. The developed smart patch system is demonstrated to monitor physiological signals in real‐time utilizing the user interface of remote portable equipment with the Bluetooth protocol and on‐site electrochromic displays. Moreover, a passive wireless system based on the magnetic coupling effect is designed, which can operate free from the battery and simultaneously acquire multiple pressure information. It is envisioned that the strategies would hold enormous potential for flexible electronics, versatile sensing platforms, and wireless on‐body networks.
3D Biomimetic Calcified Cartilaginous Callus that Induces Type H Vessels Formation and Osteoclastogenesis
Authors: Qiu Minglong , Li Changwei , Cai Zhengwei , Li Cuidi , Yang Kai , Tulufu Nijiati , Chen Bo , Cheng Liang , Zhuang Chengyu , Liu Zhihong , Qi Jin , Cui Wenguo , Deng Lianfu 
Published: March 2023

AbstractThe formation of a calcified cartilaginous callus (CACC) is crucial during bone repair. CACC can stimulate the invasion of type H vessels into the callus to couple angiogenesis and osteogenesis, induce osteoclastogenesis to resorb the calcified matrix, and promote osteoclast secretion of factors to enhance osteogenesis, ultimately achieving the replacement of cartilage with bone. In this study, a porous polycaprolactone/hydroxyapatite‐iminodiacetic acid‐deferoxamine (PCL/HA‐SF‐DFO) 3D biomimetic CACC is developed using 3D printing. The porous structure can mimic the pores formed by the matrix metalloproteinase degradation of the cartilaginous matrix, HA‐containing PCL can mimic the calcified cartilaginous matrix, and SF anchors DFO onto HA for the slow release of DFO. The in vitro results show that the scaffold significantly enhances angiogenesis, promotes osteoclastogenesis and resorption by osteoclasts, and enhances the osteogenic differentiation of bone marrow stromal stem cells by promoting collagen triple helix repeat‐containing 1 expression by osteoclasts. The in vivo results show that the scaffold significantly promotes type H vessels formation and the expression of coupling factors to promote osteogenesis, ultimately enhancing the regeneration of large‐segment bone defects in rats and preventing dislodging of the internal fixation screw. In conclusion, the scaffold inspired by biological bone repair processes effectively promotes bone regeneration.
Enhancing CO2 Electroreduction to Ethylene via Copper−Silver Tandem Catalyst in Boron‐Imidazolate Framework Nanosheet
Authors: Shao Ping , Zhang Hai‐Xia , Hong Qin‐Long , Yi Luocai , Li Qiao‐Hong , Zhang Jian 
Published: March 2023

AbstractCopper‐based tandem catalysts with a well‐defined Cu coordination environment for the electrochemical CO2 reduction reaction (CO2RR) are highly desirable, due to their unique geometric‐electronic properties and helpfulness for revealing structure–property correlations. Here, this work synthesizes a tandem catalyst at atomic configuration scale, Ag@BIF‐104NSs(Cu), by using the ultrathin boron imidazolate framework (BIF) nanosheets as support to load Ag nanoparticles (NPs). Due to the highly ordered benzoate ligands decorated on the Cu sites of BIF‐104NSs(Cu), Ag NPs are located in atomic proximity to Cu sites via a coordination effect. Electrochemical CO2RR measurements show this tandem catalyst highly improves the selectivity and activity for the CO2 reduction to ethylene. The faradaic efficiency (FEC2H4) of 21.43% is significantly higher than that of BIF‐104NSs(Cu) (3.82%). Further, density functional theory calculations reveal that the Ag sites in the composite can efficiently reduce CO2 to *CO, that subsequently migrate to the Cu sites. Thereafter, the Cu–Ag atom pair is responsible for the C–C coupling of the local enriched *CO and further formation of C2H4.
Double Fence Porphyrins Featuring Indacenodithiophene Group as an Effective Donor for High‐Efficiency Dye‐Sensitized Solar Cells
Authors: Chen Ching‐Chin , Chen Yu‐Hsuan , Nguyen Vinh Son , Chen Sheng‐Yang , Tsai Meng‐Chen , Chen Jia‐Sian , Lin Sing‐Yu , Wei Tzu‐Chien , Yeh Chen‐Yu 
Published: March 2023

AbstractPorphyrins are an important category of dyes for efficient dye‐sensitized solar cells (DSSCs). However, the efficiency improvement of DSSCs lags behind those of organic and perovskite solar cells owing to deficiencies in new design strategies of dye molecular structures. Recently, double fence porphyrins with superior photovoltaic performance were reported, in which eight alkoxyl chains were introduced to wrap the porphyrin core and retard the approach of the electrolyte to the surface of TiO2. On the basis of the design strategy of double fence porphyrins, novel porphyrins bJS8, YS2, YS3, YS7, and MC1 featuring dual functional indacenodithiophene group are synthesized and their photovoltaic performance in DSSCs are studied. Among these new double fence porphyrin dyes, YS7 exhibits an improved power conversion efficiency of 11.4% (short circuit photocurrent (JSC) = 17.34 mA cm−2, open circuit photovoltage (VOC) = 0.864 V, and fill factor (FF) = 0.758) compared to the previously reported double fence porphyrin bJS2 of 10.7% (JSC = 16.59 mA cm−2, VOC = 0.849 V, and FF = 0.759) and the benchmark porphyrin dye GY50 of 10.1% (JSC = 16.14 mA cm−2, VOC = 0.863 V, and FF = 0.725) under optimized conditions, providing a new molecular design strategy for high‐efficiency porphyrin dyes in DSSCs.
Integrative taxonomy of Ceriagrion species from China (Odonata: Coenagrionidae)
Authors: Yu Xin , Chen Churu , Zhang Min 
Published: March 2023

AbstractMore than 800 specimens of Chinese Ceriagrion were studied, almost a quarter were used for molecular analysis. Methods of cladistics, ABGD, jMOTU, bPTP, as well as morphology, were used for species delimitation. Nine species were identified and confirmed occurring in China. A taxonomic key of males was given. Two new synonyms (Ceriagrion chaoi to Ceriagrion bellona, Ceriagrion olivaceum to Ceriagrion azureum) were proposed, Ceriagrion malaisei was confirmed new to China, the distribution of Ceriagrion rubiae in China was eliminated, and three incorrect identifications were corrected.