bluuebunny/crossref_metadata_2025_split huggingface dataset:
A multilevel analysis of the effects of indoor activities on psychological wellbeing during COVID-19 pandemic
Authors: Çetin Mehmet , Kökalan Özgür 
Published: August 2021

El estudio tiene como objetivo analizar los efectos de las actividades en interiores tales como el ejercicio físico, la socialización digital y los juegos digitales, en los niveles de bienestar subjetivo de las personas. Dada la naturaleza dinámica de la pandemia para capturar el nivel diario dentro de la varianza individual, el estudio adapta un enfoque multinivel donde los días se anidan en personas. Se recopilan 1950 datos diarios a partir de 390 encuestados durante 5 días consecutivos durante la primera fase de la pandemia (cuando había políticas estrictas de aislamiento social) en Turquía. Los resultados de la partición de los componentes de la varianza respaldaron la necesidad de utilizar un enfoque multinivel. Los resultados del análisis realizado a través de modelos lineales jerárquicos demostraron que la actividad física a nivel diurno en el hogar y la socialización digital alivian significativamente el afecto negativo diario y se asocia positivamente con el nivel diario de afecto positivo y los niveles de felicidad de los encuestados. Estos resultados fueron controlados por variables demográficas, extraversión y resiliencia psicológica. La extraversión fue negativa y la resiliencia psicológica se relacionó positivamente con el nivel diario de afecto negativo.
Study aims to analyze the effects of indoor activities such as physical exercise, digital socializing and digital gaming on subjective wellbeing levels of individuals. Given the dynamic nature of the pandemic in order to catch the day level within individual variance (along with between individuals variance) study adapts a multilevel approach where days are nested in people. 1950 day level data are collected from 390 respondent for 5 consecutive days during the first phase of pandemic (when there were strict social isolation policies) in Turkey. Results for partitioning variance components supported the necessity for using a multilevel approach. Findings of analysis conducted though hierarchical linear modeling demonstrated that day level physical activity at home and digital socializing significantly alleviate daily negative affect and positively associates with day level positive affect and happiness levels of respondents. These results were controlled for demographic variables, extraversion and psychological resiliency. Extraversion was negatively and psychological resiliency was positively related to day level negative affect.
Evolución de la colaboración científica en la Psicología española entre 1970 y 1989
Authors: González Sala Francisco , Osca-Lluch Julia , Peñaranda-Ortega María 
Published: August 2021

El objetivo de la presente investigación es analizar la evolución de la colaboración científica en la psicología española a través de trabajos firmados por un autor o autora perteneciente a una institución española de psicología entre 1970 y 1989. Se analizaron un total de 2891 trabajos publicados en 29 revistas de psicología entre los años 1970 y 1989, analizando la colaboración científica a través del estudio de redes mediante el programa UCINET y el software Netdraw. Los resultados indican que a lo largo de los años se produce un aumento del número de trabajos, autores y firmas, así como de la colaboración científica, siendo en el periodo entre 1985 y 1989 cuando los trabajos en coautoría superan al número de trabajos firmados por un solo autor. Se muestra que el número de autores, así como de los grupos de colaboracion aumentan a lo largo de los años estudiados. Se puede concluir que es en la segunda mitad de la década de los años 80 cuando se produce un aumento considerable de la colaboración científica en la psicología española.
The objective of this research is to analyse the evolution of scientific collaboration within Spanish psychology through papers signed by an author who belonged to a Spanish institution of psychology between 1970 and 1989. We analysed a total of 2891 papers published in 29 journals of psychology between 1970 and 1989, examining the scientific collaboration through network analysis, using the UCINET program and Netdraw software. The results indicated that there has been an increased number of papers, authors and signatures over the years, as well as an increased scientific collaboration. Between 1985 and 1989, co-authored papers overcame single-author papers. It is shown that the number of authors, as well as of collaboration groups, increased over the years under study. It can be concluded that it was in the second half of the 1980s when scientific collaboration within Spanish psychology increased considerably.
Prevalence, Associated Factors and Outcome of Newborns with Anaemia as Seen in Rivers State University Teaching Hospital, Nigeria
Authors: West Boma Awoala , Arthur Adaku , Aitafo Josephine Enekole , Omunakwe Hannah 
Published: August 2021

Aim: There is paucity of literature on the prevalence of neonatal anaemia globally thus aim of the study was to evaluate the prevalence, determine the associations and the clinical outcome of neonates with anaemia.
Study Design: This was a descriptive prospective cross-sectional study.
Place and Duration of Study: Study was carried out among neonates admitted in the Special Care Baby Unit of Rivers State University Teaching Hospital over one year.
Methodology: A convenient sampling size of 402 neonates who met the inclusion criteria were consecutively recruited. Data was analysed using SPSS version 23.
Results: Of 402 neonates assessed, 106(26.4%) had anaemia with PCV less than 42%. Anaemia was observed more in males 56(52.8%), neonates delivered via Caesarean section 74(69.8%) and at gestational age less than 37 weeks 53(50%). Mild anaemia was observed mostly, 66(62.3%). Common pregnancy complications of mothers with anaemic babies were prolonged rupture of membranes 17(35.4%) and hypertension in pregnancy 14(29.2%) while the commonest morbidities in these neonates were probable sepsis 65(63.8%), neonatal jaundice 53(52%) and prematurity 53(52%). There was significant difference in anaemic and non-anaemic neonates with regards to mothers with gestational diabetes (P value < 0.0001). The factors associated with severe anaemia were probable sepsis and the duration of stay. Blood transfusion was carried out in 27(25.5%) neonates. An overall mortality of 7.5% was documented, severe anaemia being highest (21.4%).
Conclusion: The prevalence of anaemia was high being 26.4% and was observed more in males, preterms and babies delivered via Caesarean section. There was significant difference in anaemic and non-anaemic neonates with regards to mothers with gestational diabetes. Probable sepsis and duration of stay were significantly associated with severe anaemia. The mortality rate in neonates with anaemia was 7.5% thus there is need to assess newborns for anaemia with prompt intervention to prevent morbidity, mortality and long term sequelae.
Evaluation of Proximate and Mineral Composition of Mutant Dolichos Lablab (Lablab purpureus L.) Accessions in Kenya
Authors: Kimno S. K. , Kinyua M. G. , Pkania K. C. , Chepkoech E. 
Published: August 2021

Plant breeding through induced mutation technology is a potent method to creating new variants of food crops with of desirable phenotypic, genetic and biochemical functions. It is a catalyst in developing improved crop varieties where classical hybridization or selection have limitations. It has been used to improve nutrition quality and higher yield in a number of legumes. Dolichos Lablab (Lablab purpureus L) is multipurpose legume that has not been exploited extensively for food nutritional properties through breeding. The purpose of the study was, therefore, to generate awareness that nutritional status of D. Lablab could be improved through mutation induction and be a good source of food components essential for good health. Twenty-four dolichos Lablab germplasms including 20 mutant accessions and 4 commercial genotypes were evaluated for proximate values and mineral contents in Kenya in 2021 based on Association of Official Analytical Chemists (AOAC). Data analysis was based on least significant difference (P = .05).The revealed percent moisture, ash crude fat, crude fibre, crude proteins and total starch content ranged : 7.35% -11.84%, 1.09 -2.90%, 3.35% - 8.05% , 8.86 - 12.70% , 20.03% - 28.87% and 25.50% - 39.00% .The mineral content of phosphorous (P), potassium(K) and calcium (Ca) ranged from 27mg - 57mg, 132mg -297mg and 7mg - 19mg. A significant positive correlation between ash levels to P and K concentration and on P to K concentration. The result of analysis ranked 9 (WT026, WT018 ,MT110 , BT188 , BT032, BT114, MT076 BT137,GT09) different accessions that positively contributed to the nutritional content of the investigated dolichos lablab accessions. Further research on the superior accessions can be done on yield potential, resistance to biotic and abiotic constrains, sensory preferences or used in bio fortification of existing genotypes.
Assessment of dermal exposure to N,N-dimethylacetamide in spray workers by combining personal exposure monitoring, biological monitoring, and glove permeation monitoring: A pilot study
Authors: Yamamoto Shinobu , Takeuchi Akito , Yoshida Yuichiro , Nishinoiri Osamu , Ichiba Masayoshi , Miyauchi Hiroyuki 
Published: August 2021

Abstract

Objectives
We assessed dermal exposure to N,N-dimethylacetamide (DMAC) in a spray worker by utilizing a combination of personal exposure monitoring, biological monitoring, and glove permeation monitoring. We also determined the protective effects of chemical protective gloves (CPGs).

Methods
Surveys with and without CPG usage were performed on different days. In the survey with CPG usage, the worker had worn leather gloves over the CPG. Personal exposure monitoring and glove permeation monitoring were performed using 3M Organic Vapor Monitor 3500 and PERMEA-TEC Pads respectively. Urinary concentration of DMAC and its metabolites (N-methylacetamide [NMAC], N-hydroxymethyl-N-methylacetamide [DMAC-OH], S-(acetamidomethyl) mercapturic acid [AMMA]) were measured in the before-shift and end-of-shift samples collected from the worker.

Results
Personal exposure DMAC concentration in the survey with CPG usage (0.32 ppm) was twice that in the survey without CPG usage (0.15 ppm). However, urinary concentrations of DMAC-OH and AMMA in the end-of-shift samples in the survey with CPG usage (DMAC-OH, 0.74 mg/g creatinine; AMMA, 0.10 mg/g creatinine) were lower than those in the survey without CPG usage (DMAC-OH, 1.27 mg/g creatinine; AMMA, 0.24 mg/g creatinine). Urinary concentrations of DMAC and NMAC were below the limit of detection in all samples. DMAC concentrations in PERMEA-TEC Pads that were used in the surveys with and without CPG usage were in the range of 0.3-2.1 µg/sample and 16.4-1985.2 µg/sample respectively.

Conclusions
The combination of CPG usage and leather gloves was effective in preventing dermal exposure to DMAC.
Analysis of nucleoid‐associated protein‐binding regions reveals DNA structural features influencing genome organization in Mycobacterium tuberculosis
Authors: Sarkar Sharmilee , Dey Upalabdha , Khohliwe Trust Boitumelo , Yella Venkata Rajesh , Kumar Aditya 
Published: August 2021

Nucleoid‐associated proteins (NAPs) maintain bacterial nucleoid configuration through their architectural properties of DNA bending, wrapping, and bridging. However, the contribution of DNA structural alterations to DNA‐NAP recognition at the genomic scale remains unresolved. Present work dissects the DNA sequence, shape and altered structural preferences at a genomic scale for six NAPs in Mycobacterium tuberculosis. Results suggest narrower minor groove width (MGW) and higher DNA rigidity are marked for the binding sites of EspR and Lsr2, while mIHF, MtHU and NapM have heterogeneous DNA structural predilections. In contrast, WhiB4–DNA‐binding sites were characterized by wider MGW, highly deformable and less curved DNA. This work provides systematic insight into NAP‐mediated genome organization as a function of DNA structural features.
Diarylfluorene‐Based Organic Semiconductor Materials toward Optoelectronic Applications
Authors: Han Yamin , Bai Lubing , Lin Jinyi , Ding Xuehua , Xie Linghai , Huang Wei 
Published: August 2021

AbstractModular production is a convenient strategy that not only realizes the mass production of conjugated materials, but also precisely regulates their photoelectrical property for optoelectronic applications. Diarylfluorene is a functional building block in constructing organic semiconductors arising from its special electronic, spacial, and conformational structure. Because of easy chemical modification, tunable electronic structure, and high photoluminescence quantum yield, diarylfluorene‐based conjugated materials have undergone remarkable development in variety of low‐cost optoelectronic devices. Herein, the authors present an overview mainly to describe the recent research progresses of diarylfluorene‐based molecules, including 9,9′‐diarylfluorene, heteroatom‐containing spirocyclic diarylfluorene, and 4‐position substituted 9,9′‐diarylfluorene. The synthetic routes, molecular structures as well as their diverse applications toward optoelectronic devices are introduced and summarized systematically. Finally, the future challenges and development are also discussed in this vital research field.
Colossal Reversible Barocaloric Effects in Layered Hybrid Perovskite (C10H21NH3)2MnCl4 under Low Pressure Near Room Temperature
Authors: Li Junning , Barrio María , Dunstan David J. , Dixey Richard , Lou Xiaojie , Tamarit Josep‐Lluís , Phillips Anthony E. , Lloveras Pol 
Published: August 2021

AbstractBarocaloric effects in a layered hybrid organic–inorganic compound, (C10H21NH3)2MnCl4, that are reversible and colossal under pressure changes below 0.1 GPa are reported. This barocaloric performance originates in a phase transition characterized by different features: A strong disordering of the organic chains, a very large volume change, a very large sensitivity of the transition temperature to pressure and a small hysteresis. The obtained values are unprecedented among solid‐state cooling materials at such low pressure changes and demonstrate that colossal effects can be obtained in compounds other than plastic crystals. The temperature‐pressure phase diagram displays a triple point indicating enantiotropy at high pressure.
Morphology Transformation Pathway of Block Copolymer‐Directed Cooperative Self‐Assembly of ZnO Hybrid Films Monitored In Situ during Slot‐Die Coating
Authors: Tian Ting , Yin Shanshan , Tu Suo , Weindl Christian L. , Wienhold Kerstin S. , Liang Suzhe , Schwartzkopf Matthias , Roth Stephan V. , Müller‐Buschbaum Peter 
Published: August 2021

AbstractCooperative self‐assembly (co‐assembly) of diblock copolymers (DBCs) and inorganic precursors that takes inspiration from the rich phase separation behavior of DBCs can enable the realization of a broad spectrum of functional nanostructures with the desired sizes. In a DBC assisted sol–gel chemistry approach with polystyrene‐block‐poly(ethylene oxide) and ZnO, hybrid films are formed with slot‐die coating. Pure DBC films are printed as control. In situ grazing‐incidence small‐angle X‐ray scattering measurements are performed to investigate the self‐assembly and co‐assembly process during the film formation. Combining complementary ex situ characterizations, several distinct regimes are differentiated to describe the morphological transformations from the initially solvent‐dispersed to the ultimately solidified films. The comparison of the assembly pathway evidences that the key step in the establishment of the pure DBC film is the coalescence of spherical micelles toward cylindrical domains. Due to the presence of the phase‐selective precursor, the formation of cylindrical aggregates in the solution is crucial for the structural development of the hybrid film. The pre‐existing cylinders in the ink impede the domain growth of the hybrid film during the subsequent drying process. The precursor reduces the degree of order, prevents crystallization of the PEO block, and introduces additional length scales in the hybrid films.
Nanozyme with Robust Catalase Activity by Multiple Mechanisms and Its Application for Hypoxic Tumor Treatment
Authors: Wang Chongchong , Li Yanqing , Yang Weijie , Zhou Lin , Wei Shaohua 
Published: August 2021

AbstractUtilizing catalase‐mimicking nanozymes to produce O2 is an effective method to overcome tumor hypoxia. However, it is challenging to fabricate nanozymes with ultrahigh catalytic activity. Palladium nanosheet (Pd NS), a photothermal agent for photothermal therapy (PTT), has superior catalase‐mimicking activity. Here, titanium dioxide (TiO2) is used to modify Pd NS (denoted Pd@TiO2) by a simple one‐step method to improve its catalytic activity about 8 times. The enhancement mechanism's fundamental insights are discussed through experiments and density functional theory calculations. Next, zinc phthalocyanine is loaded on Pd@TiO2 to form a nanomotor (denoted PTZCs) with the synergistic activities of photodynamic therapy and PTT. PTZCs inherit the catalase activity of Pd@TiO2 to facilitate the decomposition of endogenous H2O2 to O2, which can relieve tumor hypoxia and propel PTZC migration to expand the reach of PTZCs, further enhancing its synergistic treatment outcome both in vitro and in vivo. It is proposed that this work can provide a simple and effective strategy for catalytic activity enhancement and bring a critical new perspective to studying and guiding the nanozyme design.
A Highly Compressible and Stretchable Carbon Spring for Smart Vibration and Magnetism Sensors
Authors: Gao Huai‐Ling , Wang Ze‐Yu , Cui Chen , Bao Jia‐Zheng , Zhu Yin‐Bo , Xia Jun , Wen Shao‐Meng , Wu Heng‐An , Yu Shu‐Hong 
Published: August 2021

AbstractPorous carbon materials demonstrate extensive applications for their attractive characteristics. Mechanical flexibility is an essential property guaranteeing their durability. After decades of research efforts, compressive brittleness of porous carbon materials is well resolved. However, reversible stretchability remains challenging to achieve due to the intrinsically weak connections and fragile joints of the porous carbon networks. Herein, it is presented that a porous all‐carbon material achieving both elastic compressibility and stretchability at large strain from −80% to 80% can be obtained when a unique long‐range lamellar multi‐arch microstructure is introduced. Impressively, the porous all‐carbon material can maintain reliable structural robustness and durability under loading condition of cyclic compressing–stretching process, similar to a real metallic spring. The unique performance renders it as a promising platform for making smart vibration and magnetism sensors, even capable of operating at extreme temperatures. Furthermore, this study provides valuable insights for creating highly stretchable and compressible porous materials from other neat inorganic components for diverse applications in future.
Cp*Co(III)‐Catalyzed Dehydrative C2‐Prenylation of Pyrrole and Indole with Allyl Alcohols
Authors: Basuli Suchand , Sahu Samrat , Saha Shuvendu , Maji Modhu Sudan 
Published: August 2021

AbstractNon‐activated allyl alcohols are utilized as allylating agent for thiocarbamate‐directed allylation of pyrrole and indole. The synthetic methodology is accompanied by advantages like silver‐free conditions and generates water as the by‐product. A wide range of substituted pyrroles and indoles along with several structurally different allyl alcohols took part in the reaction. Among notable examples, biologically relevant prenylation, geranylation, and synthesis of 1,3‐dienes are achieved. Selective mono allylation of pyrrole, gram‐scale synthesis, and ready deprotection of directing group are the other key highlights of this method.magnified image
Mixed Triboelectric and Flexoelectric Charge Transfer at the Nanoscale
Authors: Qiao Huimin , Zhao Pin , Kwon Owoong , Sohn Ahrum , Zhuo Fangping , Lee Dong‐Min , Sun Changhyo , Seol Daehee , Lee Daesu , Kim Sang‐Woo , Kim Yunseok 
Published: August 2021

AbstractThe triboelectric effect is a ubiquitous phenomenon in which the surfaces of two materials are easily charged during the contact‐separation process. Despite the widespread consequences and applications, the charging mechanisms are not sufficiently understood. Here, the authors report that, in the presence of a strain gradient, the charge transfer is a result of competition between flexoelectricity and triboelectricity, which could enhance charge transfer during triboelectric measurements when the charge transfers of both effects are in the same direction. When they are in the opposite directions, the direction and amount of charge transfer could be modulated by the competition between flexoelectric and triboelectric effects, which leads to a distinctive phenomenon, that is, the charge transfer is reversed with varying forces. The subsequent results on the electrical power output signals from the triboelectrification support the proposed mechanism. Therefore, the present study emphasizes the key role of the flexoelectric effect through experimental approaches, and suggests that both the amount and direction of charge transfer can be modulated by manipulating the mixed triboelectric and flexoelectric effects. This finding may provide important information on the triboelectric effect and can be further extended to serve as a guideline for material selection during a nanopatterned device design.
Boosting Antitumor Sonodynamic Therapy Efficacy of Black Phosphorus via Covalent Functionalization
Authors: Liu Yajuan , Li Zhiyuan , Fan Feng , Zhu Xianjun , Jia Lingbo , Chen Muqing , Du Pingwu , Yang Lihua , Yang Shangfeng 
Published: August 2021

AbstractSonodynamic therapy (SDT) triggered by ultrasound represents an emerging tumor therapy approach with minimally invasive treatment featuring nontoxicity and deep tissue‐penetration, and its efficacy sensitively depends on the sonosensitizer which determines the generation of reactive oxygen species (ROS). Herein, for the first time covalently functionalized few‐layer black phosphorus nanosheets (BPNSs) are applied as novel sonosensitizers in SDT, achieving not only boosted SDT efficacy but also inhibited cytotoxicity relative to the pristine BPNSs. Three different covalently functionalized‐BPNSs are synthesized, including the first fullerene‐functionalized BPNSs with C60 covalently bonded onto the surface of BPNSs (abbreviated as C60‐s‐BP), surface‐functionalized BPNSs by benzoic acid (abbreviated as BA‐s‐BP), and edge‐functionalized BPNSs by C60 (abbreviated as C60‐e‐BP), and the role of covalent functionalization pattern of BPNSs on its SDT efficacy is systematically investigated. Except C60‐e‐BP, both surface‐functionalized BPNSs (C60‐s‐BP, BA‐s‐BP) exhibit higher SDT efficacies than the pristine BPNSs, while the highest SDT efficacy is achieved for BA‐s‐BP due to its strongest capability of generating the hydroxyl (·OH) radicals, which act as the dominant ROS to kill the tumor cells.