bluuebunny/crossref_metadata_2025_split huggingface dataset:
Acute myocardial infarction in a 17-year-old Bangladeshi boy-possibility of existence of a Bangladeshi paradox
Authors: Das Prabir Kumar , Hossain F. , Karim M.R. 
Published: July 2016

Coronary artery disease (CAD) and acute myocardial infarction (AMI) are diseases of older age. AMI is uncommon in young age and rare in adolescence. A seventeen years old Bangladeshi boy developing acute anterior wall MI is described here. Risk factor analysis for CAD revealed absence of most of the conventional risk factors, like smoking, diabetes mellitus, hypertension. An elevated lipoprotein(a) and a low HDL cholesterol was detected in blood which are emerging risk factors of CAD in young Bangladeshis.
O trabalho em domicílio: elementos para pensar estratégias de conciliação entre trabalho e família
Authors: Maccarini Moraes Patricia 
Published: July 2016

<p>O toyotismo, combinado com o modelo de acumulação flexível, acarretou a flexibilização das relações de trabalho, resultando na terceirização, no desemprego e na desregulamentação dos contratos e direitos trabalhistas. No setor têxtil cresce o trabalho em domicílio que indica a autoexploração do trabalhador. A casa passa a ser lugar de produção e reprodução, pois permite às mulheres exercerem uma atividade produtiva e manterem as tarefas de reprodução. Considera-se que o trabalho em domicílio seja adotado como estratégia de conciliação entre trabalho e família. Este assunto merece atenção das políticas sociais quanto aos direitos do trabalho, bem como das políticas de atenção às famílias. </p>
Rūgščiojo jonizuoto vandens įtaka sėjamojo žirnio (Pisum sativum L.) biometriniams ir biocheminiams rodikliams
Authors: Malinauskaitė Regina 
Published: July 2016

Tyrimų, atliktų Aleksandro Stulginskio universiteto Biologijos ir augalų biotechnologijos instituto laboratorijoje 2015 m., tikslas – įvertinti nuolatiniam laistymui naudoto rūgščiojo jonizuoto (pH 5,07) vandens poveikį sėjamojo žirnio (Pisum sativum L.) ‘Kiblukai’ veislės augalų biometriniams ir biocheminiams rodikliams II ir III ontogenezės etapais, kadangi nėra aptikta duomenų apie ilgalaikio rūgščiojo vandens poveikį augalams. Kontroliniai augalai buvo laistomi vandentiekio vandeniu (pH 7,3). Rūgštusis jonizuotas vanduo buvo gaminamas iš vandentiekio vandens 0,5 val. prieš laistymą jonizatoriumi PTV-AL. Po sudygimo praėjus 7 ir 14 (II ontogenezės etapas) bei 21 ir 28 (III ontogenezės etapas) dienoms buvo nustatyti biometriniai rodikliai: augalų aukštis, antžeminės dalies žalioji ir sausoji masės, o paskutiniuoju tyrimų laikotarpiu – ir šaknų sausoji masė. Biocheminiai rodikliai: chlorofilų a ir b bei karotenoidų kiekis nustatyti 14, 21 ir 28 dienomis. Nustatyta, kad laistymui naudotas rūgštusis jonizuotas vanduo neturėjo esminės neigiamos įtakos augalų aukščiui, bet slopino žaliosios ir sausosios masės kaupimąsi antžeminėje dalyje. Esmingai mažiau, 1,28 karto, palyginti su kontroliniais augalais, žaliosios masės buvo sukaupta III ontogenezės etape, 21 dieną po sudygimo. III ontogenezės etape (21 ir 28 dienomis) antžeminėje dalyje, palyginti su kontroliniais augalais, buvo sukaupta 1,26 ir 1,09 karto mažiau sausosios masės, o šaknyse – 1,11 karto mažiau. Tačiau ŠAS (šaknų–antžeminės dalies santykis) buvo panašus: kontroliniuose augaluose 0,72, o tirtuose – 0,71. Rūgščiuoju jonizuotu vandeniu laistomuose sėjamojo žirnio lapuose buvo sukaupta esmingai mažiau chlorofilų a ir b bei pirmaisiais tyrimų laikotarpiais – karotenoidų. Chlorofilų a ir b (Ca/b) santykis kontroliniuose augaluose svyravo nuo 2,31 iki 2,71, o tirtuose – tyrimų pradžioje 2,77, vėliau sumažėjo iki 1,61 ir 1,97. Paskutiniuoju tyrimų laikotarpiu rūgščiuoju jonizuotu vandeniu laistomų augalų lapuose pigmentų sintezė suintensyvėjo, ypač karotenoidų. Jų kiekis buvo esmingai 0,22 mg g–1 didesnis nei kontroliniuose augaluose. Tyrimai parodė, kad ilgalaikis nuolatinis sėjamojo žirnio augalų laistymas rūgščiuoju jonizuotu vandeniu II–III ontogenezės etapais pradžioje slopino biomasės ir fotosintezės pigmentų sintezę, vėliau augalų jautrumas sumažėjo ir kaip atsakas į ilgalaikį stresą prasidėjo regeneracijos procesai.
Mėsinių bulių veislių įtaka Lietuvos juodmargių mėsos produkcijai ir kokybei
Authors: Korsukovas Audrius , Jukna Česlovas , Prusevičius Vaidotas 
Published: July 2016

Straipsnyje skelbiami duomenys apie skirtingų mėsinių veislių bulių įtaką Lietuvos juodmargių augimo spartai, pašarų sąnaudoms, lemiančioms priesvorį, skerdenos išeigai, kokybei, morfologinei sudėčiai bei mėsos fizinėms savybėms ir cheminiai sudėčiai. Sudarytos kontrolinės grynaveislių Lietuvos juodmargių (LJ) ir Lietuvos juodmargių mišrūnų buliukų grupės: Lietuvos juodmargių × limuzinų (LJ × LI), Lietuvos juodmargių × simentalių (LJ × SI), Lietuvos juodmargių × šarolė (LJ × ŠA), Lietuvos juodmargių × angusų (LJ × AN), Lietuvos juodmargių × aubrakų (LJ × AU). Kiekvienoje grupėje buvo 18–20 buliukų. Grupes sudarė dviejų bulių palikuonys. Tyrimai atlikti su 120–500 dienų amžiaus buliukais.
Community-Acquired Pneumonia
Authors: Vaughn Valerie M. , Dickson Robert P. , Horowitz Jennifer K. , Flanders Scott A. 
Published: September 2024

ImportanceCommunity-acquired pneumonia (CAP) results in approximately 1.4 million emergency department visits, 740 000 hospitalizations, and 41 000 deaths in the US annually.ObservationsCommunity-acquired pneumonia can be diagnosed in a patient with 2 or more signs (eg, temperature &amp;gt;38 °C or ≤36 °C; leukocyte count &amp;lt;4000/μL or &amp;gt;10 000/μL) or symptoms (eg, new or increased cough or dyspnea) of pneumonia in conjunction with consistent radiographic findings (eg, air space density) without an alternative explanation. Up to 10% of patients with CAP are hospitalized; of those, up to 1 in 5 require intensive care. Older adults (≥65 years) and those with underlying lung disease, smoking, or immune suppression are at highest risk for CAP and complications of CAP, including sepsis, acute respiratory distress syndrome, and death. Only 38% of patients hospitalized with CAP have a pathogen identified. Of those patients, up to 40% have viruses identified as the likely cause of CAP, with Streptococcus pneumoniae identified in approximately 15% of patients with an identified etiology of the pneumonia. All patients with CAP should be tested for COVID-19 and influenza when these viruses are common in the community because their diagnosis may affect treatment (eg, antiviral therapy) and infection prevention strategies. If test results for influenza and COVID-19 are negative or when the pathogens are not likely etiologies, patients can be treated empirically to cover the most likely bacterial pathogens. When selecting empirical antibacterial therapy, clinicians should consider disease severity and evaluate the likelihood of a bacterial infection—or resistant infection—and risk of harm from overuse of antibacterial drugs. Hospitalized patients without risk factors for resistant bacteria can be treated with β-lactam/macrolide combination therapy, such as ceftriaxone combined with azithromycin, for a minimum of 3 days. Systemic corticosteroid administration within 24 hours of development of severe CAP may reduce 28-day mortality.ConclusionsCommunity-acquired pneumonia is common and may result in sepsis, acute respiratory distress syndrome, or death. First-line therapy varies by disease severity and etiology. Hospitalized patients with suspected bacterial CAP and without risk factors for resistant bacteria can be treated with β-lactam/macrolide combination therapy, such as ceftriaxone combined with azithromycin, for a minimum of 3 days.
Prolonged Boarding and Racial Discrimination and Dissatisfaction Among Emergency Department Patients
Authors: Olson Rose McKeon , Fleurant Andrea , Beauparlant Sophie Grace , Baymon DaMarcus Eugene , Marsh Regan , Schnipper Jeffrey , Plaisime Marie , Wispelwey Bram 
Published: September 2024

ImportanceEmergency department (ED) boarding times have increased rapidly, but their health equity outcomes are unknown.ObjectiveTo investigate whether prolonged ED boarding is associated with increased perceived racial discrimination and dissatisfaction and whether associations vary between patients from marginalized racial and ethnic groups vs non-Hispanic White patients.Design, Setting, and ParticipantsThis is a cross-sectional study of hospitalized adults who boarded in the ED during internal medicine admissions at a large, urban hospital in Boston, Massachusetts, from June 2023 to January 2024. Equal proportions of non-Hispanic White patients and patients from marginalized racial and ethnic groups (American Indian or Alaska Native, Hispanic, non-Hispanic Black and/or African American, and multiracial) were selected randomly.ExposureThe duration of ED boarding was categorized as less than 4 hours (reference), 4 to less than 24 hours, and 24 or more hours.Main Outcomes and MeasuresPrimary outcomes were odds of reporting (1) discrimination via the Discrimination in Medical Settings scale, and (2) dissatisfaction via the adapted Picker Patient Experience–15 questionnaire. Marginalized race and ethnicity was tested as an effect modifier. Multivariable logistic regression models adjusted for patient age, sex, language, and insurance payer.ResultsOf 598 patients approached, 527 were enrolled, and 525 completed the surveys (response rate, 87.8%). The mean age (SD) was 60.6 (18.7) years, 300 patients (57.1%) were female, 246 patients (47.3%) identified as non-Hispanic White, and 274 (52.7%) were from a marginalized racial or ethnic group. In total, 135 (25.7%) boarded less than 4 hours (reference), 202 (38.5%) boarded 4 to less than 24 hours, and 188 (35.8%) boarded 24 hours or longer. Compared with less than 4 hours, boarding 24 hours or longer was associated with increased perceived discrimination (odds ratio [OR], 1.84; 95% CI, 1.14-2.99; P = .01). An increased association was observed in the subgroup of patients from racial and ethnic marginalized groups (OR, 2.36; 95% CI, 1.20-4.65; P = .01); effect modification was not significant (P for interaction, .10). For all patients, boarding 24 hours or longer was associated with increased dissatisfaction with care (OR, 1.77; 95% CI, 1.03-3.06; P = .04); effect modification was not significant (P for interaction, .80).Conclusions and RelevanceIn this cross-sectional study, hospitalized patients who boarded in the ED 24 hours or longer reported more discrimination and dissatisfaction with care, which may disproportionately affect patients from marginalized racial and ethnic groups. As ED boarding times increase nationally, it is critical to recognize their potential to exacerbate health inequities and to respond with equity-focused solutions.
Pseudomonas Aeruginosa Dps
Authors: Rajapaksha Nimesha , Rivera Mario 
Published: September 2024

AbstractDNA‐binding proteins from starved cells (Dps) are part of the ferritin family. Unlike ferritin and bacterioferritin, which are assembled from 24 subunits, the quaternary structure of Dps is an assembly of 12 subunits that forms a nearly spherical shell enclosing a hollow interior cavity. Dps are known to oxidize Fe2+by consuming H2O2and storing the resultant Fe3+in the interior cavity, thus simultaneously defending against Fe2+‐ and H2O2‐mediated oxidative stress and compartmentalizing the otherwise insoluble Fe3+. Some Dps can bind DNA, forming stable complexes that provide a physical shield that guards DNA from various stressors. Among the numerous Dps proteins characterized so far, the Dps fromPseudomonas aeruginosa(Pa Dps) exhibits structural and functional similarities with other Dps proteins but also possesses unique attributes. The dodecameric quaternary structure of Pa Dps is stabilized at pH ≤ 6.0, and by the presence of divalent metal cations at pH ≥ 7.5. Conserved His, Glu, and Asp residues coordinate iron of the di‐nuclear (ferroxidase) centers at the interface of each subunit dimer. The ferroxidase centers in Pa Dps catalyze the oxidation of Fe2+to Fe3+using H2O2as an electron acceptor, and the protein stores the ensuing Fe3+in its interior cavity, therefore, enablingP. aeruginosacells to survive challenges with H2O2. Pa Dps exhibits two unprecedented properties: (i) the presence of a novel network of Tyr residues at the interface of each subunit dimer, between the two ferroxidase centers, which captures radicals produced during the oxidation of Fe2+at ferroxidase centers; and (ii) endonuclease activity (phosphodiester hydrolysis) which depends on an intact 12‐mer quaternary structure in solution.
An Adaptive Spatiotemporal Decouple Graph Convolutional Network Based Quality‐Related Fault Detection Method for Complex Industrial Processes
Authors: Wu Jiangxiao , Peng Kaixiang , Zhang Xueyi 
Published: September 2024

ABSTRACTWith the rapid development of industrial technology, industrial processes become increasingly complex, presenting characteristics of large‐scale and multi‐unit collaboration. However, most current fault detection methods focus on nonlinearity, dynamics, and other characteristics, while neglecting spatiotemporal information. To address this issue, an adaptive spatiotemporal decouple graph convolutional network based quality‐related fault detection method is proposed in this article. First, the temporal graph convolutional network and spatial graph convolutional network are combined organically in the form of joint training. Second, considering that fixed graph structures cannot reflect the dynamic relationships among nodes, we proposed an adaptive weighted mask mechanism to construct dynamic correlation graph embedded with priori knowledge. Multi‐attention mechanism is used to integrate spatiotemporal information, besides, we designed a decoupling layer to avoid information redundancy. Finally, the proposed spatiotemporal graph convolutional network is used to establish a regression model, the quality‐related latent variables are extracted by the decoupling layer, and the statistic is constructed based on Kullback–Leibler divergence. The effectiveness and feasibility of the proposed method are illustrated with the hot strip mill process and the Tennessee Eastman process.
Polypyrrole@TiO2 Composite Nanotube System with Enhanced Capillary Fluid and Charge Transfer for High‐Current Hydrovoltaic Energy Generation and Seawater Purification
Authors: Xiao Haoyuan , Zhu Jingshuai , Ding Lei , Zheng Jiaxin , Liu Chen , Du Bing , Chen Shiguo , Wang Yuanfeng 
Published: September 2024

AbstractHarnessing the energy generated from the evaporation of water has received considerable research attention in materials science; however, challenges such as poor conversion efficiency and low current output persist. Herein, an innovative synergistic material system based on titanium dioxide nanotubes coated with polypyrrole (PPy@TiO2NTs) is introduced for the simultaneous production of electricity and clean water from solar energy and seawater. The tubular structure of PPy@TiO2NT and the molecular interactions between TiO2 and PPy produce enhanced charge transfer, thereby providing the advantages of the hydrovoltaic effect, solar‐driven water evaporation (SWE), and photocatalysis. Consequently, PPy@TiO2NT‐loaded melamine foam can produce tens or more than a hundred microamperes of current in water of various salinities, which is an order of magnitude improvement over previously reported hydrovoltaic evaporation systems. In addition, under 1 sun irradiation, the system achieved an SWE rate of 2.13 kg m−2 h−1 and a methylene blue removal rate of more than 90% within 2 h. The proposed material system, featuring high electrical output and outstanding dual‐mechanism water treatment capabilities, shows high potential for synergistically harnessing solar energy and seawater, as well as for environmental management.
Hydrogel‐Waveguiding On‐Chip Meta‐Optics for Dynamic Multicolor Holography
Authors: Li Xinglong , Dai Chenjie , Shi Yangyang , Wan Shuai , Li Zhe , Dai Wei , Guan Zhiqiang , Li Zhongyang 
Published: September 2024

AbstractOn‐chip integrated meta‐optics hold tremendous potential for optical imaging and display applications compatible with integrated photonic devices. Despite recent endeavors in multi‐dimensional image display, it remains a challenge to realize dynamic holography applications with on‐chip integration scheme and facile accessible tuning approach. Herein, an on‐chip hydrogel‐waveguiding platform with single‐step fabrication is demonstrated for dynamic colorful holography. By exploiting the optical tunable property of the waveguiding hydrogel, the on‐chip hydrogel metasurface enables optical concealment ON/OFF and dynamic dual‐channel holographic switch within 310 ms through a simple exhalation process. Furthermore, utilizing the waveguiding hydrogel dispersion and the correlation between extraction efficiency and relative humidity, a color‐mixed holographic image is encrypted and successfully exhibited at specific humidity condition. Beyond the conventional static on‐chip monochromatic holography, such a dynamic on‐chip hydrogel platform enjoys satisfactory humidity‐responsivity, high integration capability, full‐color potential, and zero‐order diffraction interference‐free, which suggests potential applications in active optical information concealment/encryption, full‐color holography, and next‐generation wearable AR devices.
Biomolecular Neuristors from Functionalized Lipid Membranes
Authors: Makhoul Mansour Michelle , Maraj Joshua J. , Pyron Robert Jordan , Barrera Francisco N. , Sarles Stephen A. 
Published: September 2024

AbstractModeled after biological neurons, neuristors are emerging hardware that generate recurring voltage spikes in response to electrical stimulation. This type of excitability can enable transistor‐free spiking neural networks for efficient signal processing and computing. Yet, most neuristors consist of circuits containing numerous devices, thus complicating fabrication and increasing size, power usage, and cost. In contrast, it is shown that a single, 5nm‐thick lipid membrane functionalized with voltage‐activated peptides functions as a two‐terminal, ultra‐low power (fW‐pW) artificial neuristor in response to supplied current. Specifically, the biomolecular membrane generates stochastic voltage oscillations (10–150 mV) in response to direct currents (|5–40| pA), and is capable of generating two distinct types of action potentials fast (≈1–50 ms) and slow (≈1–2 s) spikes via distinct physical mechanisms. This discovery showcases the inherent multifunctionality and modularity of engineered biomembranes, and it contributes to an expanding suite of ionic and biomolecular devices designed with synapse and neuron functionalities for emerging computing architectures.
Fully Flexible All‐in‐One Electronic Display Skin with Seamless Integration of MicroLED and Hydrogel Battery
Authors: Niu Jianan , Bai Xue , Wang Jiangwen , Chen Yingyi , Zhao Bingqi , Sha Wei , Long Yong , Wang Zhonglin , Hu Weiguo 
Published: September 2024

AbstractVisualization is a cornerstone in human–computer interaction, evolving from large screens to mobile devices and now to wearable display technology. However, conventional batteries and displays lack the softness and stretchability inherent to human skin. Here, a fully flexible, all‐in‐one electronic display skin by integrating a flexible microLED display, a stretchable circuit, and a Zn|PAM|V2O5 hydrogel battery pack is developed. Vapor‐phase bulk transfer is used to efficiently and accurately transfer 10 000 microLEDs onto a flexible substrate, ensuring high flexibility and ultra‐thin (240 µm). The flexible hydrogel battery pack provides sustainable energy, with a high specific capacity of 331.3 mAh g−1. Additionally, a transparent stretchable circuit board (maximum stretch 40%) is made by 3D printing technology. The skin display exhibited exceptional stretchability and biocompatibility, conforming to movements while maintaining high‐resolution dynamic visual outputs. These innovations pave the way for advanced skin‐implanted displays, promising transformative applications in information interaction, healthcare, and artificial intelligence.
3D Printable κ‐Carrageenan‐Based Granular Hydrogels
Authors: Bono Francesca , Strässle Zuniga Sophie Hélène , Amstad Esther 
Published: September 2024

Abstractκ‐carrageenan, an algae‐extracted polysaccharide known for its emulsifying properties, is widely used in food and beauty products. Because of its abundance in nature, similarity to natural glycosaminoglycans, and biocompatibility, it is a promising alternative to animal gelatin for tissue engineering. Key to the more widespread use of κ‐carrageenan for biomedical applications is its processability, which is hampered by its temperature‐dependent rheological properties. Here, a κ‐carrageenan‐based ink is introduced that can be 3D printed at room temperature through direct ink writing (DIW). This is achieved by formulating κ‐carrageenan as microgels that are covalently crosslinked through a second network, resulting in double network granular hydrogels (DNGHs). These DNGHs can be stiffened to reach stiffnesses up to 0.9 MPa under tension and 1.1 MPa under compression through the addition of metal ions and glucose. The metal/glucose reinforcement also increases the work of fracture up to 1.1 MJ m−3, exceeding that of unmodified κ‐carrageenan DNGHs 50‐fold. The potential of the ink by room temperature 3D printing cm‐sized free‐standing load‐bearing structures is demonstrated. This ink is envisaged to be a well‐suited algae‐derived alternative for the animal‐based gelatin for tissue engineering and in food applications for example as soft confectionery products.
Enhanced Dielectric Loss Induced by Asymmetrically Coordinated Iron Single‐Atoms with Curved Configurations on Turing‐Like Surfaces for Electromagnetic Wave Absorption
Authors: Ma Ziqian , Shen Yu , Zhang Xiao , Li Bei , Chen Yujin , Zhu Chunling 
Published: September 2024

AbstractCurved support can significantly change the electronic structure of a metal single‐atom (M‐SA) and thereby fine tune its intrinsic physicochemical properties. However, constructing asymmetrically coordinated M‐SAs on highly curved supports remains challenging. Here, an efficient strategy driven by the different thermal decomposition rates of two polymers is proposed to create Turing surface with highly curved stripes on hollow carbon spheres (HCSs) for anchoring asymmetrically coordinated Fe‐N3S1 moieties. Experimental and theoretical calculation results reveal that asymmetric Fe‐N3S1 atoms and the strain of Fe─N bonds induced by the highly curved Turing surface efficiently break the symmetric distribution of the charge around the Fe atoms and significantly enhance the dielectric loss of the HCSs, thereby synergistically improving the electromagnetic wave absorption property. Remarkably, the film constructed with Fe‐N3S1‐anchored HCSs and natural rubber exhibits a wide effective absorption bandwidth of 7.68 GHz at a filling ratio of 6%. Moreover, the film also possesses excellent hydrophobicity, frost‐resistant ability, adhesiveness, flexibility, stretchability, and heat‐dispersion ability, which expand its practical applications into various environments. This work provides insights into the synergistic effects of asymmetrically coordinated configurations and curved supports of M‐SAs on their dielectric properties and offers a new method for the preparation of multifunctional films.