bluuebunny/crossref_metadata_2025_split huggingface dataset:
Negócios sociais ou socioambientais emergentes no Brasil: perspectivas e limitações – revisão integrativa
Authors: De Souza Josélia Batista Dias , Silva Edson Arlindo 
Published: April 2023

O presente artigo objetivou explorar os conhecimentos produzidos no que tange aos negócios emergentes que atuam com as questões socioambientais no contexto brasileiro, bem como os elementos conceituais, as limitações e perspectivas existentes neste tipo de atividade. Portanto, foi aplicada a metodologia da revisão de literatura integrativa, na qual a partir de 14 produções publicadas entre os anos de 2011 a 2021 e tendo como literatura complementar a atual Constituição Federal do Brasil, houve condições de se perceber a relevância de que maiores estudos e produções baseadas neste campo sejam desenvolvidas. Assim, por meio desta pesquisa notou-se que os negócios socioambientais emergentes atuam com a inovação social, enfim, com ações que geram impacto direto no enfrentamento das mazelas e na resolução de problemas sociais e ambientais que emergem-se na sociedade. Logo, criam possibilidades de geração de renda, emprego, enfim, de cidadania especialmente para os menos favorecidos, bem como para o fortalecimento dos pequenos negócios. Por outro lado, esses empreendimentos requerem mudanças de paradigmas no próprio contexto social, de maneira que cada vez mais as organizações que atuam nesta linha de negócio devem estar preparadas para ensinarem, capacitarem e influenciarem os indivíduos para a solidariedade.
Investigação e modelagem da incivilidade no trabalho na percepção dos professores de instituições públicas e privadas
Authors: Posser Talita Gonçalves Posser , Costa Vânia Medianeira Flores , Wegner Roger da Silva , Borba Sabrina Nascimento , Richter Julia 
Published: April 2023

O presente estudo tem como objetivo desenvolver uma modelagem visando elencar as prioridades referentes à incivilidade no ambiente de trabalho sob a percepção dos professores de escolas públicas e privadas situadas em Santa Maria – RS. Participaram da pesquisa 166 professores da educação básica de escolas públicas e privadas de Santa Maria – RS. A partir dos critérios da escala elaborada por Cortina et al. (2011) e validada no Brasil por Tonin (2018), desenvolveu-se a modelagem das prioridades a partir do Analytic Hierarchy Process. Os resultados sinalizaram que as variáveis “Falou em voz alta, gritou ou insultou você” e “Fez comentários insultuosos ou desrespeitosos sobre você” foram prioridades similares citadas pelos professores, sendo ações consideradas importantes para contexto investigado.
Is there an Electro-Angiographic Correlation in RD Infarction?
Authors: Maatof B. , Zerhoudi R. , Nabawi H. , Rhoujjati M. I. , Eljamili M. , Karimi S. , Elhattaoui M. 
Published: April 2023

Introduction: Coronary angiography is the examination of choice in the evaluation of coronary anatomy during acute myocardial infarction, particularly of the right ventricle (RV), whose diagnosis remains difficult. The electrocardiogram reflects the pathophysiology of myocardial ischemia, thus allowing prediction of the culprit lesion.
Objective: To investigate the correlation between electrical and coronary data and to judge the reproducibility of the electrocardiogram in identifying the culprit lesion in RV infarction.
Materials and Methods: Retrospective study of patients hospitalized in the Cardiology Department of the Mohammed VI University Hospital in Marrakech over a period of 24 months for MDI extended to the RV.
Results: During the study period, 120 patients were hospitalized for MI with RV extension.
Inferior MI represented 70% of all cases of infarction extended to the RV. It is represented electrically by isolated ST-segment elevation in V3R found in 76%, as well as in association with an elevation in V4R in 45% of cases.
Conduction disorders were noted in 38% of cases, presented essentially by first degree atrioventricular block, without any electrical specificity.
Coronary angiography was performed in 91% of patients, half of whom underwent coronary angioplasty. A bi-truncular involvement (RC + VIA) was found in 40% of cases, the middle DC is the culprit lesion in almost half of the cases of VD infarction.
The presence of an ST elevation in the isolated V3R shunt is a specific criterion of right middle coronary involvement, found in 48% of patients.
Conclusion: The ECG remains an essential tool in the early prediction of the artery responsible for the infarction. Because of its complementary nature, the combination of ECG and coronary angiography is essential for a better evaluation of acute myocardial infarction.
Response of Sulphur and Foliar Application of Nano Urea on Growth and Yield of Sunflower (Helianthus annus L.)
Authors: Bhakher Renuka , Debbarma Victor , Ninama Jigyasa 
Published: April 2023

The field experiment entitled “response of sulphur and foliar application of nano urea on growth and yield of sunflower” was conducted during Summer, 2022 at Crop Research Farm, Department of Agronomy, Naini Agriculture Institute, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh. The result showed that maximum diameter of capitulum (14.85 cm), number of seeds/capitulum (453.67), test weight (44.58 g), seed yield (1.70 t/ha), oil content (37.73 %) and B:C ratio (2.54) were obtained by the application of Sulphur at the rate 40 kg/ha along with Nano urea (3ml/l) in treatment 8 whereas higher plant height (118.83 cm), plant dry weight (70.08 g) and stover yield (3.36 t/ha) were obtained by the application of Sulphur at the rate 40 kg/ha along with Nano urea 4ml/l in treatment 9.
Analysis of Hospital Operating Margins and Provision of Safety Net Services
Authors: Gaffney Lukas K. , Michelson Kenneth A. 
Published: April 2023

ImportanceSafety net hospitals (SNH) provide many community services. The cost of providing these services is unknown.ObjectiveTo determine what safety net criteria are associated with differences in hospital operating margin.Design, Setting, and ParticipantsThis cross-sectional study of US acute care hospitals from 2017 to 2019 included eligible hospitals identified from US Centers for Medicare &amp;amp; Medicaid Services Cost Reports.ExposuresFive domains of SNH: undercompensated care measured using the Disproportionate Share Hospital index, uncompensated care, essential community services, neighborhood disadvantage, and sole community hospital and critical access hospital status. Each was categorized as a quintile or binary response. Covariates included hospital ownership, size, teaching status, census region, urbanicity, and wage index.Main Outcomes and MeasuresOperating margin and its association with each safety net criterion was determined using linear regression adjusting for all safety net criteria and covariates.ResultsA total of 4219 hospitals were analyzed, of which 3329 hospitals (78.9%) satisfied at least 1 safety net criterion; 23 hospitals (0.5%) met 4 or all 5 criteria. Among safety net criteria, the highest quintile of undercompensated care (−6.2 percentage point difference compared with lowest quintile; 95% CI, −8.2 to −4.2 percentage points), uncompensated care (−3.4 percentage points; 95% CI, −5.1 to −1.6 percentage points), and neighborhood disadvantage (−3.9 percentage points; 95% CI, −5.7 to −2.1 percentage points) were each associated with a lower operating margin. No association with operating margin was found between critical access or sole community hospital status (0.9 percentage points; 95% CI, −0.8 to 2.7 percentage points) or the highest vs lowest quintile of essential services (0.8 percentage points; 95% CI, −1.2 to 2.7 percentage points). Among essential services, burn, inpatient psychiatry, and primary care services were associated with lower operating margin, while others were either not associated or showed positive association. Fall-off in operating margin by level of uncompensated care was most severe in the highest percentiles of uncompensated care, with the most marked declines among those with the lowest operating margin.Conclusions and RelevanceIn this cross-sectional study of SNH, hospitals in the highest quintiles of undercompensated care, uncompensated care, and neighborhood disadvantage were more financially vulnerable than those not in the top quintile, especially when they met numerous of these criteria. Ensuring targeting of financial support to these hospitals could improve their financial stability.
Exponential synchronization of quaternion‐valued memristor‐based neural networks with time‐varying delays
Authors: Cheng Yanzhao , Shi Yanchao 
Published: April 2023

SummaryIn this paper, the global exponential synchronization of quaternion‐valued memristor‐based neural networks with time‐varying delays is discussed. Firstly, by using the differential inclusion theory and the set‐valued map theory, the discontinuous quaternion‐valued memristive neural networks is transformed into an uncertain system with interval parameters. A novel controller is designed to achieve the control goal. With the ‐measure method and Halanay inequality, the criterion for global exponential synchronization of the quaternion‐valued memristive neural networks is given. At last, a numerical simulation is given to prove the validity of the main results.
Asymmetric time‐varying BLF‐based model‐free hybrid force/position control for SEA‐based 2‐DOF manipulator
Authors: Wei Yangchun , Wang Haoping , Tian Yang 
Published: April 2023

SummaryIn this work, an asymmetric time‐varying barrier Lyapunov function‐based model‐free hybrid force/position controller (ABLF‐MFC) is proposed for the series elastic actuator‐based 2‐DOF manipulator. Inspired by large surface machining, many scenarios require hybrid force/position control, and the simple position control can no longer meet the above requirements. Therefore, ABLF‐MFC with a dual‐loop structure is established, which are force sub‐control loop and position sub‐control loop. Based on the idea of admittance control, the force sub‐control loop generates a reference trajectory according to the desired interaction force and trajectory. Then, for the position sub‐control loop, to simplify the controller design process, an ultra‐local model (ULM) is introduced, which can approximate the original system. Since the ULM has an unknown term, time‐delay estimation (TDE) is applied to estimate it, which can also reduce the dependence on accurate model parameters. The position sub‐control loop is designed by an asymmetric time‐varying barrier Lyapunov function, an integral‐type Lyapunov function and an adaptive compensation term, so the tracking error can be kept within the preset boundary while ensuring the convergence, and the TDE estimation error can be compensated. Rigorous mathematical proofs and simulation results verify the effectiveness of ABLF‐MFC.
Highly Efficient n‐Doping via Proton Abstraction of an Acceptor1‐Acceptor2Alternating Copolymer toward Thermoelectric Applications
Authors: Hochgesang Adrian , Erhardt Andreas , Mohanraj John , Kuhn Meike , Herzig Eva M. , Olthof Selina , Thelakkat Mukundan 
Published: April 2023

AbstractElectron transporting (n‐type) polymers are the coveted complementary counterpart to more thoroughly studied hole transporting (p‐type) semiconducting polymers. Besides intrinsic stability issues of the doped form ofn‐type polymer toward ubiquitous oxidizing agents (H2O and O2), the choice of suitablen‐dopants and underlying mechanism of doping is an open research field. Using a low LUMO,n‐type unipolar acceptor1‐acceptor2copolymer poly(DPP‐TPD) in conjunction with bulkn‐doping using Cs2CO3these issues can be addressed. A solid‐state acid‐base interaction between polymer and basic carbonate increases the backbone electron density by deprotonation of the thiophene comonomer while forming bicarbonate, as revealed by NMR and optical spectroscopy. Comparable to N‐DMBI hydride/electron transfer, Cs2CO3proton abstraction doping shifts the poly(DPP‐TPD) work function toward the LUMO. Thereby, the anionic doped state is resilient against O2but is susceptible toward H2O. Based on GIWAXS, Cs2CO3is mostly incorporated into the amorphous regions of poly(DPP‐TPD) with the help of hydrophilic side chains and has minor impact on the short‐range order of the polymer. Cs2CO3proton abstraction doping and the acceptor1‐acceptor2copolymer architecture creates a synergisticn‐doped system with promising properties for thermoelectric energy conversion, as evidenced by a remarkable power factor of (5.59 ± 0.39) × µW m−1 K−2.
Assembling Amorphous Metal–Organic Frameworks onto Heteroatom‐Doped Carbon Spheres for Remarkable Bifunctional Oxygen Electrocatalysis
Authors: Zong Lingbo , Li Ping , Lu Fenghong , Wang Chengbin , Fan Kaicai , Li Zhenjiang , Wang Lei 
Published: April 2023

AbstractMultifunctional electrocatalysts play an increasingly crucial role in various practical electrochemical energy conversion devices. Especially, on the air cathode of rechargeable zinc–air batteries (ZABs), oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), requiring efficient bifunctional electrocatalysts, are switched during discharging and charging process. Here, supported by the theoretical computations, a facile strategy for the in situ assembly of NiFe‐MOFs nanosheets on heteroatoms‐doped porous activated carbon spheres is developed. The newly designed electrocatalyst (NP‐ACSs@NiFe‐MOFs) shows excellent performance toward bifunctional oxygen electrocatalysis. Specifically, a remarkable low value of potential gap (ΔE= 0.61 V), which is the difference between the potential to reach an OER current density of 10 mA cm−2and ORR half‐wave potential, is achieved in 0.1 mKOH. Notably, the aqueous ZAB based on NP‐ACSs@NiFe‐MOFs shows super cycle stability with small voltage gap of only 0.79 V when cycled for 450 h at 10 mA cm−2. Also, the quasi‐solid‐state ZAB indicates excellent flexibility and cycling stability. This study presents a facile strategy for the rational integration of different catalytically active components, and can be extended to prepare other strongly competitive multifunctional electrocatalysts.
Nanocomplexes of Biodegradable Anticancer Macromolecules: Prolonged Plasma Half‐Life, Reduced Toxicity, and Increased Tumor Targeting
Authors: Leong Jiayu , Tay Joyce , Yang Shengcai , Yang Chuan , Tan Eddy Wei Ping , Wang Yanming , Tan Bing Qian , Hor Sherwin , Chua Yau Hong , Tan Jeremy Pang Kern , Chen Qingfeng , Hedrick James L. , Yang Yi Yan 
Published: April 2023

AbstractAnticancer drug resistance is a large contributing factor to the global mortality rate of cancer patients. Anticancer macromolecules such as polymers have been recently reported to overcome this issue. Anticancer macromolecules have unselective toxicity because they are highly positively charged. Herein, an anionic biodegradable polycarbonate carrier is synthesized and utilized to form nanocomplexes with an anticancer polycarbonate via self‐assembly to neutralize its positive charges. Biotin is conjugated to the anionic carrier and serves as cancer cell‐targeting moiety. The nanoparticles have sizes of < 130 nm with anticancer polymer loading levels of 38–49%. Unlike the small molecular anticancer drug doxorubicin, the nanocomplexes effectively inhibit the growth of both drug‐susceptible MCF7 and drug‐resistant MCF7/ADR human breast cancer cell lines with low half maximal inhibitory concentration (IC50). The nanocomplexes increase the anticancer polymer's in vivo half‐life from 1 to 6–8 h, and rapidly kill BT474 human breast cancer cells primarily via an apoptotic mechanism. The nanocomplexes significantly increase the median lethal dose (LD50) and reduce the injection site toxicity of the anticancer polymer. They suppress tumor growth by 32–56% without causing any damage to the liver and kidneys. These nanocomplexes may potentially be used for cancer treatment to overcome drug resistance.
Single Component Organic Photosensitizer with NIR‐I Emission Realizing Type‐I Photodynamic and GSH‐Depletion Caused Ferroptosis Synergistic Theranostics
Authors: Fang Laiping , Han Mingda , Zhang Yuan , Song Yue , Liu Botong , Cai Minmin , Jiang Mengpei , Hu Liyun , Zheng Ran , Lian Xin , Yan Fei , Huang Keke , Feng Shouhua 
Published: April 2023

AbstractPhototheranostic agents have thrived as prominent tools for tumor luminescence imaging and therapies. Herein, a series of organic photosensitizers (PSs) with donor‐acceptors (D‐A) are elaborately designed and synthesized. In particular, PPR‐2CN exhibits stable near infrared‐I (NIR‐I) emission, excellent free radicals generation and phototoxicity. Experimental analysis and calculations imply that a small singlet‐triplet energy gap (ΔES1−T1) and large spin‐orbit coupling (SOC) constant boost the intersystem crossing (ISC), leading to type‐I photodynamic therapy (PDT). Additionally, the specific glutamate (Glu) and glutathione (GSH) consumption abilities of PPR‐2CN inhibit the intracellular biosynthesis of GSH, resulting in redox dyshomeostasis and GSH‐depletion causing ferroptosis. This work first realizes that single component organic PS could be simultaneously used as a type‐I photodynamic agent and metal‐free ferroptosis inducer for NIR‐I imaging‐guided multimodal synergistic therapy.
Recent Developments of Inorganic Nanosensitizers for Sonodynamic Therapy
Authors: He Zongyan , Du Jun , Miao Yuqing , Li Yuhao 
Published: April 2023

AbstractAs a noninvasive treatment, sonodynamic therapy (SDT) has been widely used in the treatment of tumors because of its ability to penetrate deep tissue with few side effects. As the key factor of SDT, it is meaningful to design and synthesize efficient sonosensitizers. Compared with organic sonosensitizers, inorganic sonosensitizers can be easily excited by ultrasound. In addition, inorganic sonosensitizers with stable properties, good dispersion, and long blood circulation time, have great development potential in SDT. This review summarizes possible mechanisms of SDT (sonoexcitation and ultrasonic cavitation) in detail. Based on these mechanisms, the design and synthesis of inorganic nanosonosensitizers can be divided into three categories: traditional inorganic semiconductor sonosensitizers, enhanced inorganic semiconductor sonosensitizers, and cavitation‐enhanced sonosensitizers. Subsequently, the current efficient construction methods of sonosensitizers are summarized including accelerated semiconductor charge separation and enhanced production of reactive oxygen species through ultrasonic cavitation. Furthermore, the advantages and disadvantages of different inorganic sonosensitizers and detailed strategies are systematically discussed on how to enhance SDT. Hopefully, this review could provide new insights into the design and synthesis of efficient inorganic nano‐sonosensitizers for SDT.
Preparation and Properties of Shape Memory PEG/IEM Resin and Its Composite Designed for Ureter Stent
Authors: Li Ce , Zhang Fenghua , Zhao Wei , Wang Linlin , Liu Yanju , Leng Jinsong 
Published: April 2023

AbstractIn this paper, isocyanoethyl methacrylate (IEM) is used to functionalize the two ends of poly(ethylene glycol) (PEG) diol with acrylic acid groups through an urethanization reaction. The synthesized PEG/IEM resin is then photo‐cured with a 405 nm ultraviolet lamp. Ttrans of the PEG/IEM resin can be regulated by the different molecular weights of PEG and the use of plasticizer Triacetin to reach 44 °C, which is closer to the human body temperature. Cytotoxicity assay and DMA shape memory cycling testing show that the PEG/IEM resin has excellent biocompatibility and shape memory properties. The flower structure is prepared and its shape recovery process is demonstrated. The performance of 10wt% nano Fe3O4/PEG4000/IEM resin and its composite spring stent structure satisfy the requirement of the stent properties in vivo, and can quickly recover to the original shape under magnetically driven. This work provides a material option for developing new biological application devices such as ureter stents.
Hierarchically Ordered Macro–Mesoporous Electrocatalyst with Hydrophilic Surface for Efficient Oxygen Reduction Reaction
Authors: Yao Wen , Hu Anqian , Ding Jieting , Wang Nanshu , Qin Ze , Yang Xianfeng , Shen Kui , Chen Liyu , Li Yingwei 
Published: April 2023

AbstractMetal–organic frameworks (MOFs) offer versatile templates/precursors to prepare supported metal catalysts. However, the afforded catalysts usually exhibit microporous structures and unsuitable wettability, which will restrict the accessibility of active sites in liquid‐phase reactions. Herein, an etching–functionalization strategy is developed for the construction of a tannic‐acid‐functionalized MOF with a unique hollow‐wall and 3D‐ordered macroporous (H‐3DOM) structure. The functional MOF can be further employed as an ideal precursor for the synthesis of cobalt supported on oxygen/nitrogen‐co‐doped carbon composites with H‐3DOM structures, and hydrophilic surface. The H‐3DOM structure can improve the external surface area to maximize the exposure of active sites. Moreover, the oxygen‐containing functional groups can enhance the surface wettability to guarantee the external active sites to be more electrochemically accessible in aqueous electrolyte. Benefitting from these outstanding characteristics, H‐3DOM‐Co/ONC exhibits high electrocatalytic activity in the oxygen reduction reaction, superior to its counterparts without the hierarchically ordered structure and surface functionalization.
Surface‐Functionalized Nanoparticles as Catalysts for Artificial Photosynthesis
Authors: Martí Gerard , Mallón Laura , Romero Nuria , Francàs Laia , Bofill Roger , Philippot Karine , García‐Antón Jordi , Sala Xavier 
Published: April 2023

AbstractAnalogously to enzymatic catalysis, where the active metal sites and their environment are controlled by protein residues, the catalytic properties of metal nanoparticles (NPs) can be tuned by carefully selecting their surface‐coordinated species. In artificial photosynthesis, surface‐functionalization emerged in the last decade, grounded on the development of reliable methods for tailored synthesis, advanced characterization and theoretical modeling of metal NPs, altogether with the aim of transferring to the nanoscale the mechanistic knowledge acquired from molecular complexes. Metal NPs surface‐functionalization modulates the energetics of key catalytic intermediates, introduces second coordination sphere effects, influences the catalyst‐electrolyte interface, and determines the metal NPs surface coverage and, accordingly, the number of accessible active sites. In photoactivated systems, metal NPs surface‐functionalization may play a key role in modulating the charge transfers and recombination processes between the light absorber and the active sites and in the light absorber itself. Thus, after a presentation of the most relevant synthetic methods to produce well‐defined surface‐functionalized metal NPs, a critical analysis of why the above effects are the cornerstone in enhancing their catalytic performance in the key processes of artificial photosynthesis, namely the oxygen evolution reaction, the hydrogen evolution reaction, and the CO2 reduction reaction, is given.
New insights on regional differences of the farmland price structure: An extended replication study on the parcel size–price relationship
Authors: Schaak Henning , Meissner Luise , Musshoff Oliver 
Published: April 2023

AbstractThis study adds insights about the nonlinear effect of parcel sizes on farmland prices. Therefore, replications of Ritter et al. (2020, Land Use Policy, DOI: j.landusepol.2020.104771) are performed in four ways. The study contributes to the literature within two dimensions: (i) the geographical scope, which allows insights into regional differences in the price structure for farmland and (ii) the role of assumptions regarding the functional form for the size–price relationship. The results of the extended replication show that the size–price relationship differs between federal states. Further, the results highlight the importance of assumptions imposed on functional forms of nonlinear relationships in hedonic regression studies.