bluuebunny/crossref_metadata_2025_split huggingface dataset:
Delayed pay and employee turnover: The buffering role of pay‐for‐performance
Authors: Zhou Kong , Xia Ying , Zhang Guanglei , He Wei , Jiang Kaifeng 
Published: August 2023

AbstractIn response to a financial crisis, many organizations adjust their pay systems to reduce labor costs. In this research, we focus on the use of delayed pay (the postponement of employees' contractual compensation) and examine its effect on employee voluntary turnover outcomes. In a field study (Study 1) with data collected from the executive managers of 129 Chinese hotels experiencing a financial crisis caused by coronavirus disease 2019 (COVID‐19), we find a positive relationship between delayed pay and the voluntary turnover rate at the organizational level. In addition, this relationship becomes weaker when delayed pay consists of a larger proportion of pay‐for‐performance (PFP). We then conduct an experiment (Study 2) to extend our theoretical framework to the individual level, establish causality, and examine the underlying mechanism. The results show that the perceived negative instrumentality of stay (i.e., expected economic losses associated with staying in an organization) explains why individuals intend to leave organizations adopting delayed base pay but not delayed PFP. We further replicate these findings in a critical incident technique study (Study 3). We also discuss the theoretical and practical implications of these findings.
Prevalence, knowledge, and lifestyle‐associated risk factors of dyslipidemia among Ghanaian type‐2 diabetes mellitus patients in rural and urban areas: A multicenter cross‐sectional study
Authors: Boadu Wina I. O. , Anto Enoch O. , Frimpong Joseph , Ntiful Felix , Korsah Emmanuel E. , Ansah Ezekiel , Tamakloe Valentine C. K. T. , Agyapomaa Afia , Opoku Stephen , Senu Ebenezer , Nyantakyi Michael , Etwi‐Mensah Albright , Acheampong Emmanuel , Boadu Kwame O. , Donkoh Emmanuel Timmy , Obirikorang Christian 
Published: August 2023

AbstractBackground and AimsDyslipidemia in diabetes mellitus has been linked to unhealthy lifestyle and bad eating habits. However, this association has not been well studied among rural and urban Ghanaian populations. In this study, we determined the prevalence, knowledge, and lifestyle‐associated risk factors of dyslipidemia among Ghanaian type‐2 diabetes mellitus (T2DM) patients in rural and urban areas.MethodsThis comparative multicentre‐cross‐sectional study recruited 228 T2DM outpatients attending the St. Michael Hospital, Pramso (rural) and Kumasi South Regional Hospital (urban), Ghana for routine check‐ups. Self‐structured questionnaire was used to collect sociodemographic, knowledge, and lifestyle characteristics. Fasting blood samples were taken to measure lipid profiles. Dyslipidemia was defined per the American Diabetes Association criteria. All p < 0.05 were considered statistically significant.ResultsThe overall prevalence of dyslipidemia was 79/228 (34.7%). Dyslipidemia was more prevalent among urban participants 43 (18.9%) than rural participants 36 (15.8%). Twenty‐seven (11.7%) had adequate knowledge about the risk factors, complications, and management of diabetes. Eating supper after 7 p.m. [adjusted odds ratio = 3.77, 95% confidence interval (1.70–8.37), p = 0.001] significantly increased one's risk of having dyslipidemia by 3.8‐fold compared to eating supper earlier (before 5 p.m.).ConclusionDyslipidemia is increasing among T2DM patients in both urban and rural areas and it's independently influenced by eating supper after 7 p.m. Most participants were ignorant of the risk factors, complications, and management of diabetes. Adjusting eating habits and increasing diabetes awareness programs to sensitize the general public can mitigate the increasing prevalence of dyslipidemia in both urban and rural areas.
Behavioral preference for microclimate conditions across elevation inPlethodon montanus
Authors: Chapman Trevor L. , Bidwell Joseph R. 
Published: August 2023

AbstractThe ability to behaviorally regulate body conditions is critical for ectotherms, particularly in the face of global climate change when seeking stable refugia in a changing environment could facilitate survival. This is especially important for montane species that are limited to high elevations. In the Northern Gray‐cheeked salamander (Plethodon montanus), studies have demonstrated that population demographics improve at higher elevations and physiological constraints may prevent them from moving into lower‐elevation habitats. However, little is known about the species' ability to utilize microhabitats and behaviorally regulate by selecting preferable microclimates. Here, we used continuous position‐sensing gradient chambers to examine the behavioral preference for temperature and relative humidity (RH) inP. montanusto better understand their microhabitat use and behavioral thermoregulation across an elevation gradient. We investigated the seasonal variation in both thermal and RH preference ofP. montanuscollected from different elevations. Our results suggest that most recently experienced environmental temperatures influence thermal preference in animals at high elevations but not those at lower elevations. Salamanders preferred the highest available RH conditions regardless of environmental conditions or elevation. Data on shuttling behavior (movement across the behavior arena) from the experiments suggest that while salamanders shuttled a similar number of times in both types of trials, they spent significantly less time exploring when exposed to the RH gradient compared to the thermal gradient. Together these results suggest that while thermal preference is influenced by acclimation, preference for moisture conditions is less elastic.
2‐Amino‐4‐arylthiophene‐3‐carbonitrile and formamidine acetate as key building units for the synthesis of 5‐arylthieno[2,3‐d]pyrimidin‐4‐amines
Authors: Alizadeh‐Bami Farzaneh , Mehrabi Hossein , Hosseini‐pour Maryam 
Published: August 2023

AbstractWe tried to establish a method for the synthesis of 5‐arylthieno[2,3‐d]pyrimidin‐4‐amine analogues via three‐step reactions and examined the changes in the solvent, time, and temperature. A novel condition has been developed for the preparation of substituted 2‐aminothiophenes employing the Knoevenagel condensation followed by the Gewald method and in the last step to form thieno[2,3‐d]pyrimidines by using formamidine acetate. All the synthesized 5‐arylthieno[2,3‐d]pyrimidin‐4‐amines are unknown and were characterized by IR, 1H‐NMR, 13C‐NMR, and CHN analysis.
SARS‐CoV‐2 seroprevalence and vaccine coverage from August to November 2021: A nationally representative survey in Mexico
Authors: Basto‐Abreu Ana , Carnalla Martha , Torres‐Ibarra Leticia , Sanchez‐Pájaro Andres , Romero‐Martínez Martin , Martínez‐Barnetche Jesus , López‐Martínez Irma , Aparicio‐Antonio Rodrigo , Shamah‐Levy Teresa , Alpuche‐Aranda Celia , Rivera Juan A. , Barrientos‐Gutiérrez Tonatiuh ,   Ensanut‐Covid Collaborators
Published: August 2023

AbstractWe aimed to estimate self‐reported vaccine coverage and SARS‐CoV‐2 anti‐N and anti‐S seroprevalence in Mexico overall and for five vaccine types. We used a nationally representative survey with 7236 dried blood spot samples for adults 18 years and older collected from August to November 2021. Anti‐N and anti‐S seroprevalence were estimated adjusting for the sensitivity and specificity of the immunoassay test. A multivariate Poisson regression model was used to estimate seroprevalence by vaccine type and by age group adjusting for confounders and test performance. Vaccination coverage was 74%, being higher in women compared to men, high socioeconomic status (SES) compared to low and middle SES, graduates compared to people with high school, and formal workers compared to other employment statuses. Anti‐N seroprevalence was 59.2%, compared to 84.1% anti‐S seroprevalence. Anti‐S seroprevalence was higher for vaccinated than unvaccinated participants. All vaccines were associated with more than 70% anti‐S seroprevalence, with the lowest being observed for CoronaVac and Ad5‐nCoV. Fully vaccinated participants over 60 years presented a lower seroprevalence (77.6%) compared to younger adults (91.1%), with larger differences for ChAdOx1 and CoronaVac vaccines. Between August and November 2021, three out of four Mexican adults had been vaccinated. Vaccination was associated with a higher positivity to anti‐S antibodies. While antibodies do not reflect immunity, our results suggest that booster doses should be offered to people over 60 years of age and to adults who received Ad5‐nCoV or CoronaVac as primary vaccination schemes.
COVID‐19 infection after oocyte retrieval did not have detrimental effects on embryo implantation for frozen embryo transfer
Authors: Guo Haiyan , Yin Mingru , Liu Yali , Wang Bian , Lin Jiaying , Zhu Qianqian 
Published: August 2023

AbstractPatients preparing for their renewal fertility treatments with embryos frozen before coronavirus disease 2019 (COVID‐19) infection do not need to be concerned about the potential impact of COVID‐19 infection on oocyte quality and embryonic development. However, many women are still hesitant to undergo frozen embryo transfer (FET) due to fear of the detrimental effect of COVID‐19 infection on endometrial receptivity and embryo implantation. The objective was to explore whether COVID‐19 infection after oocyte retrieval is related to an increased risk of adverse pregnancy outcomes in a cohort of Chinese women undergoing FET. A retrospective cohort study was conducted among 300 infertile women undergoing FET with embryos frozen before COVID‐19 infection. Women were categorized into noninfection, infection before FET, or infection after FET groups. Multivariable logistic regression was performed to assess the association of COVID‐19 infection with clinical pregnancy outcomes, including biochemical pregnancy, clinical pregnancy, and early miscarriage. The implantation rates for patients in the group with infection before FET (29.14%) and the group with infection after FET (30.38%) were not significantly lower than those in the noninfection group (31.03%). The rate of biochemical pregnancy (54.55% vs. 52.27%, p = 0.750; 43.14% vs. 52.27%, p = 0.209) was not significantly different among the three groups. Although the clinical pregnancy rate showed a declining trend from 45.45% in the noninfection group to 38.27% in the group with infection after FET, this result was not statistically significant. The early miscarriage rate was similar in the group with infection before FET and the group with infection after FET compared with that in the noninfection group (3.64% vs. 5.68%, p = 0.496; 6.86% vs. 5.68%, p = 0.739). After adjusting for potential confounders, the biochemical pregnancy rate, clinical pregnancy rate, and early miscarriage rate were not significantly different for patients with infection before or after FET compared with patients without infection. This research indicated that COVID‐19 infection after oocyte retrieval with embryos frozen before infection did not cause any detrimental effect on endometrial receptivity for embryo implantation.
Interaction of saponification products of Robinia pseudoacacia seed oil with cetyltrimethyl ammonium bromide
Authors: Hou Lijie , Wu Bowan 
Published: August 2023

AbstractThe interaction between novel saponification products (RCOONa or RCOOK) of Robinia pseudoacacia seed oil and cetyltrimethyl ammonium bromide (CTAB) in aqueous solution have been investigated by surface tension method at 25°C. The critical micelle concentration (cmc) of RCOONa/CTAB and RCOOK/CTAB mixture were measured. The surface properties of saponification products, CTAB as well as the mixed system were explored and compared. The composition, activity coefficient of mixed micelle, and the interaction parameters (βσ, βM) between surfactants were estimated according to the Regular Solution Theory, the Clint's model and the Rubingh's model in the framework of pseudophase separation model. The experimental results suggested that both RCOONa and RCOOK have synergism with CTAB in mixed micelle formation and surface tension reduction through calculating of βσ and βM in the mixed system. This could be attributed to the strong interaction between the head groups with opposite charges in the surfactant molecules.
Seagrass spatial data synthesis from north‐east Australia, Torres Strait and Gulf of Carpentaria, 1983 to 2022
Authors: Carter A , McKenna S , Rasheed MA , Taylor H , van de Wetering C , Chartrand K , Reason C , Collier C , Shepherd L , Mellors J , McKenzie L , Duke NC , Roelofs A , Smit N , Groom R , Barrett D , Evans S , Pitcher R , Murphy N , Carlisle M , David M , Lui S ,   Torres Strait Indigenous Rangers, Coles RG 
Published: August 2023

AbstractThe Gulf of Carpentaria and Torres Strait in north‐eastern Australia support globally significant seagrass ecosystems that underpin fishing and cultural heritage of the region. Reliable data on seagrass distribution are critical to understanding how these ecosystems are changing, while managing for resilience. Spatial data on seagrass have been collected since the early 1980s, but the early data were poorly curated. Some was not publicly available, and some already lost. We validated and synthesized historical seagrass spatial data to create a publicly available database. We include a site layer of 48,612 geolocated data points including information on seagrass presence/absence, sediment, collection date, and data custodian. We include a polygon layer with 641 individual seagrass meadows. Thirteen seagrass species are identified in depths ranging from intertidal to 38 m below mean sea level. Our synthesis includes scientific survey data from 1983 to 2022 and provides an important evidence base for marine resource management.
Seeded RAFT Polymerization‐Induced Self‐assembly: Recent Advances and Future Opportunities
Authors: Chen Yifei , Tan Jianbo , Shen Liangliang 
Published: August 2023

AbstractOver the past decade, polymerization‐induced self‐assembly (PISA) has fully proved its versatility for scale‐up production of block copolymer nanoparticles with tunable sizes and morphologies; yet, there are still some limitations. Recently, seeded PISA approaches combing PISA with heterogeneous seeded polymerizations have been greatly explored and are expected to overcome the limitations of traditional PISA. In this review, recent advances in seeded PISA that have expanded new horizons for PISA are highlighted including i) general considerations for seeded PISA (e.g., kinetics, the preparation of seeds, the selection of monomers), ii) morphological evolution induced by seeded PISA (e.g., from corona‐shell‐core nanoparticles to vesicles, vesicles‐to‐toroid, disassembly of vesicles into nanospheres), and iii) various well‐defined nanoparticles with hierarchical and sophisticated morphologies (e.g., multicompartment micelles, porous vesicles, framboidal vesicles, AXn‐type colloidal molecules). Finally, new insights into seeded PISA and future perspectives are proposed.
Exploring the Impact of Blend and Graft of Quinoline Derivative in Low‐Temperature Curable Polyimides
Authors: Huang Shan , Lv Xialei , Zhang Yao , Qiu Siyao , Li Jinhui , Yin Huiming , Zhang Guoping , Sun Rong 
Published: August 2023

AbstractThe utilization of accelerators has been a common approach to prepare low‐temperature curable polyimide (PI). However, the accelerators have gradually fallen out of favor because of their excessive dosages and negative effect on the properties of PI. In this work, a new strategy of introducing accelerators by grafting to eliminate these disadvantages is presented. A novel quinoline derivative named 6‐([1,1′‐biphenyl]−4‐yl)−4‐chloroquinoline (NQL) is designed for this purpose, and an ultralow dosage of only 2.5 mol% is sufficient to prepare low‐temperature curable PI. The favorable low‐temperature curing effect of NQL is attributed to its strong alkalinity (pKa = 18.47) and electron‐donating ability. At a curing temperature of 200 °C, the PI with 2.5 mol% NQL showed outstanding properties (Young's modulus of 5.73 GPa, elongation of 37.3%, tensile strength of 237 MPa, and coefficient of thermal expansion of 16 ppm K−1). In particular, NQL can even lower the curing temperature to 180 °C and the ultralow temperature curable PI film still retains excellent properties. These results demonstrate that introducing low‐temperature curable accelerators by partial grafting instead of blending is a promising way to furnish low‐temperature curable PI, and provide insights into the preparation of polyimide with high performance in advanced packaging.
Identification of the natural chalcone glycoside hydroxysafflor yellow A as a suppressor of P53 overactivation‐associated hematopoietic defects
Authors: Chen Jing , Ren Can , Yao Chong , Baruscotti Mirko , Wang Yi , Zhao Lu 
Published: August 2023

AbstractEnhanced P53 signaling may lead to hematopoietic disorders, yet an effective therapeutic strategy is still lacking. Our study, along with previous research, suggests that P53 overactivation and hematopoietic defects are major consequences of zinc deficiency. However, the relationship between these two pathological processes remains unclear. In this study, we observed a severe reduction in the number of hematopoietic stem cells (HSCs) and multi‐lineage progenitor cells in zebrafish treated with the zinc chelator N,N,N′,N′‐tetrakis(2‐pyridylmethyl)ethylenediamine and showed the indispensable role of P53 signaling in the process. Next, we took advantage of HSCs‐labeled transgenic zebrafish and conducted a highly efficient phenotypic screening for small molecules against P53‐dependent hematopoietic disorders. Hydroxysafflor yellow A (HSYA), a natural chalcone glycoside, exhibited potent protection against hematopoietic failure in zinc‐deficient zebrafish and strongly inhibited the P53 pathway. We confirmed the protective effect of HSYA in zinc‐deficient mice bone marrow nucleated cells, which showed a significant suppression of P53 signaling and oxidative stress. Furthermore, the hematopoietic‐protective activity of HSYA was validated using a mice model of myelotoxicity induced by 5‐FU. In summary, our work provides an effective phenotypic screening strategy for identifying hematopoietic‐protective agents and reveals the novel role of HSYA as a promising lead compound in rescuing hematopoietic disorders associated with P53 overactivation.
Visceral adipose microbial and inflammatory signatures in metabolically healthy and unhealthy nonhuman primates
Authors: Ruggiero Alistaire D. , Vemuri Ravichandra , DeStephanis Darla , Brock Ashlynn , Block Masha R. , Chou Jeff , Das Swapan K. , Williams Abigail G. , Kavanagh Kylie 
Published: August 2023

AbstractObjectiveObesity is a key risk factor for metabolic syndrome (MetS); however, >10% of lean individuals meet MetS criteria. Visceral adipose tissue (VAT) disproportionately contributes to inflammation and insulin resistance compared with subcutaneous fat depots. The primary aim of this study was to profile tissue microbiome components in VAT over a wide range of metabolic statuses in a highly clinically relevant model.MethodsVAT was profiled from nonhuman primates that naturally demonstrate four distinct health phenotypes despite consuming a healthy diet, namely metabolically healthy lean and obese and metabolically unhealthy lean and obese.ResultsVAT biopsied from unhealthy lean and obese nonhuman primates demonstrated upregulation of immune signaling pathways, a tissue microbiome enriched in gram‐negative bacteria including Pseudomonas, and deficiencies in anti‐inflammatory adipose tissue M2 macrophages. VAT microbiomes were distinct from fecal microbiomes, and fecal microbiomes did not differ by metabolic health group, which was in contrast to the VAT bacterial communities.ConclusionsImmune activation with gram‐negative VAT microbial communities is a consistent feature in elevated MetS risk in both lean and obesity states.image
Parametric characterization of recycled polymers with nanofillers
Authors: Dib Antoine , Fantuzzi Nicholas , Agnelli Jacopo , Paleari Lorenzo , Bragaglia Mario , Nanni Francesca , Pierattini Aldo 
Published: August 2023

AbstractThe increasing production of plastics and its resulting environmental problems and waste management issues have prompted stakeholders and communities to focus on reducing, recycling, and reusing plastic products at the industrial level. While many important initiatives have been launched with a circular economy perspective, there is still a lack of research on the mechanical properties of various mixtures of recycled plastics. To address this research gap, the primary objective of this study is to present a parametric investigation on the homogenization of four different types of plastics: virgin polypropylene, recycled polypropylene, recycled high‐density polyethylene, and recycled low‐density polyethylene. The study aims to develop a homogenization methodology for multimaterial plastics reinforced with carbon nanotubes, focusing on their mechanical behavior, especially the Young's modulus. The second section of the research focuses on studying the Melt Flow Index (MFI) of various mixtures of recycled plastics. By analyzing the MFI, valuable insights can be gained regarding the flow characteristics and processability of these plastic blends. Finally, the research investigates the incorporation of nanoparticles into these novel polymers to enhance their mechanical properties, with a specific emphasis on addressing the reduction in Young's modulus caused by the utilization of recycled plastics. Overall, this study aims to contribute to the understanding of the mechanical behavior and processing characteristics of recycled plastic mixtures, as well as exploring potential strategies for improving their properties through the incorporation of nanoparticles.Highlights
Mechanical and processing properties of Plastic blends are not studied yet.
Proposing parametrical homogenization formulas to predict such properties.
Mechanical properties obtained are low and not suitable for structural purposes
Adding to the blend carbon nanotubes to increase their properties.
Properties are increased up to 11 times for recycled plastics blend.