bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prevalence of Obesity and Hypertension among Rural School Adolescents: A School Based Pilot Study in Kerala, India
Authors: Ravi Ramya Kundayi , Vineetha R. 
Published: September 2021

Aim: The prevalence of hypertension and obesity is increasing worldwide. Recent data on sustained hypertension and obesity among school-going children and adolescents from the state of Kerala, India are limited. The aim of the present study was to estimate the prevalence of obesity and hypertension among apparently healthy school going adolescents.
Methodology: A cross-sectional survey was conducted among 252 school going adolescents aged 11-16 years (173 boys and 79 girls) selected from two private aided rural schools of Thrissur, District, Kerala, India. Measurements like height, weight, and blood pressure were done using standard guidelines. Guidelines of Indian Academy of Pediatrics and standard guidelines of blood pressure measurement using gender height specific blood pressure percentile charts were used to identify the overweight/obese and pre-hypertensive/ hypertensive adolescents respectively. Analysis was done using SPSS version 27.0. Gender wise differences were checked using chi-square and t-test.
Results: Among 252 adolescents, 83 (20.7%) were either overweight or obese and pre-hypertensive or hypertensive. The overall prevalence of obesity and overweight was found to be 9.5% and 15.1% respectively. The overall prevalence of hypertension and prehypertension was found to be 15 (6.0%) and 24 (9.5%) respectively. Systolic blood pressure and diastolic blood pressure was found to be statistically lower (P<0.001) among those with normal BMI, than those with overweight or obesity. The mean systolic and diastolic BP was slightly more among boys than girls and it was not statistically significant.
Conclusion: The high prevalence of hypertension, obesity and the strong association between obesity and high blood pressure seen among school-going adolescents necessitates immediate attention. Strategies should be designed and implemented for prevention, early identification, and treatment of pediatric obesity and hypertension in forestalling the morbidity/mortality from non communicable diseases and its complications.
Awareness of Stammering Disorder among Related Fields University Students, Lahore Pakistan
Authors: Noor Aqsa , Khan Muhammad Azam , Saeed Bareera , Nareen Hafsa , Massod Fahad 
Published: September 2021

Aims: To determine the awareness of stammering disorder among university students of related fields that are Speech Language Pathology, Psychology, and Allied Professionals.
Study design: Cross sectional survey is used as research design in this study.
Place and Duration of Study: University of Central Punjab, The University of Lahore. Superior University, Lahore campus between June 2020 and July 2021.
Methodology: Sample (N=333) was drawn through purposive sampling technique from various universities of Lahore with age range of 17 – 35 years of 44% male and 56% female students of related fields( Speech Language Pathology, Psychology, Allied Professionals).Standardized questionnaire was used to determine the awareness. Data was analyzed through SPSS with descriptive statistic of frequency and percentages.
Results: Majority of participants 59.6% had accurate awareness regarding stuttering is more common in male and stuttering is not hereditary.
Conclusion: It was concluded that majority university students of related fields have accurate awareness regarding stammering disorder in Lahore, Pakistan.
Assessment of Hepatoprotective Potential of Manilkara hexandra STEM Bark: An In-vitro Analysis
Authors: Saxena Prasoon Kumar , Nanda Deepak , Gupta Ritu 
Published: September 2021

Background: Manilkara hexendra (Bignoniaceae) is tree species, privately known as Rohida, found in Thar Desert districts of northwest and western India. The bark acquired from the stem is utilized as a solution for syphilis, urinary issues, amplification of spleen, gonorrhea, leucoderma, and liver infections. The point of this work is to consider the hepatoprotective impact of unrefined Methanolic removal from the bark portions of Manikara hexendra. The methanolic extricate got from bark portions of Manikara hexendra was assessed via cell line study in HepG2 cell line followed in for hepatoprotective movement in rodents by initiating liver harm via paracetamol and carbon tetrachloride.
Results: The methanolic extricate at an oral portion of 200 mg/kg displayed a critical (P &lt; 0.05) defensive impact. These biochemical perceptions were enhanced by histopathological assessment of liver areas. The action might be a consequence of the presence of flavonoid mixes. Moreover, the intense harmfulness of the concentrates gave no indications of poisonousness up to a portion level of 2000 mg/kg.
Conclusion: It could be inferred that the methanolic concentrate of Manikara hexendra has huge hepatoprotective properties.
Preventive strategies against violence at work from the perspective of pre-hospital care nurses / Estratégias preventivas contra a violência no trabalho sob a ótica dos enfermeiros do atendimento pré-hospitalar
Authors: Sé Aline Coutinho Sento , Machado Wiliam Cesar Alves , Gonçalves Raquel Calado da Silva , Da Silva Paulo Sérgio , De Araújo Silvia Teresa Carvalho , De Figueiredo Nébia Maria Almeida 
Published: September 2021

Objetivo: identificar estratégias de prevenção contra a violência nos serviços de atendimento pré-hospitalar. Método: estudo descritivo, qualitativo, realizado com 67 enfermeiros do atendimento pré-hospitalar no município do Rio de Janeiro, em 2018. Utilizou-se instrumento semiestruturado com enfoque na violência no ambiente de trabalho. Os dados foram analisados destacando-se valores absolutos e relativos e à luz da análise de conteúdo. Resultados: foram apontadas estratégias preventivas contra a violência no trabalho relacionadas aos atendimentos em áreas de risco, comunicação eficaz, estrutura organizacional e capacitação profissional. Obteve destaque o desenvolvimento de sistema de gerenciamento de eventos que alerte área de risco, assinalado por 61 (91,04%) participantes. Conclusão: precisa-se considerar a experiência dos profissionais do atendimento pré-hospitalar para a construção de um processo de trabalho baseado em um ambiente seguro, com elaboração e implementação de estratégias que minimizem a vulnerabilidade e os riscos de violência no local de trabalho.
Quality of life and well-being of college university workers / Qualidade de vida e bem-estar de trabalhadores de colégio universitário
Authors: Lima da Silva Jorge Luiz , De Souza Lorrany Viana , Abreu Larissa Murta , Da Mota Cristina Portela , Messias Cláudia Maria , Monnerat Mayara Souza 
Published: September 2021

Objetivo: conhecer fatores relacionados à qualidade de vida e saúde de trabalhadores de um colégio universitário. Métodos: pesquisa quantitativa, realizada por meio de inquérito epidemiológico, utilizando-se questionário autoaplicado e dados clínicos. Resultados: participaram da pesquisa 106 trabalhadores, 74,5% do sexo feminino, com média de idade de 38 anos (DP±12,4), onde 92,5% relataram não fumar e 58,5% não beber álcool; 50,9% afirmou ser sedentário. Os dados clínicos demonstraram que 44,9% apresentaram pressão alterada e 11,3% glicemia elevada. Na análise dos quadrantes de exposição ao estresse, o trabalho ativo alocou maior número de profissionais (50%) e a suspeição de transtorno mental comum entre os trabalhadores foi de 22,6%. Na análise bivariada, observou-se associação entre ser solteiro e trabalho ativo (p=0,040). Conclusão: observa-se que há predominância de grau mediano de estresse no trabalho e hábitos de vida pouco saudáveis. Sabe-se que esses achados contribuem para maior ocorrência de problemas de saúde.
Child with special health needs at one hospital of the brazilian unified health system Criança com necessidades de saúde especiais de um hospital do sistema único de saúde
Authors: Carvalho Catarina Cosmo de Oliveira , Pimentel Thais Guilherme Pereira , Cabral Ivone Evangelista 
Published: September 2021

Objetivos: determinar e analisar necessidades de saúde especiais entre crianças hospitalizadas em hospital de alta complexidade, no Rio de Janeiro. Método: estudo transversal e descritivo desenvolvido com 21 familiares de crianças hospitalizadas em unidade intensiva e enfermarias de cuidados agudos, na rede de atenção de alta complexidade. Em 2019, aplicou-se o children with special healthcare needs Screener (CS Screener®) - versão brasileira na entrevista com 21 familiares. Resultados: as crianças hospitalizadas (21/36) apresentaram necessidades e demandas de serviços de saúde relacionadas à doenças e transtornos comportamentais correspondendo a 76,19%. O cuidado da criança dependia do Sistema Único de Saúde e de Assistência social. Quatro possuíam dispositivos tecnológicos implantados; oito eram acompanhadas por especialistas na atenção psicossocial e educação especial. Conclusão: essas crianças se reinternavam frequentemente, ocupando a maioria dos leitos hospitalares do Sistema Único de Saúde, principal referência para a continuidade dos cuidados de enfermagem e uso contínuo de medicamentos.
Nursing in front of the hospitalized smoking patient: diagnosis and interventions established in clinical practice / A enfermagem frente ao paciente tabagista hospitalizado: Diagnósticos e intervenções estabelecidos na prática clínica
Authors: Boni Fernanda Guarilha , Osmarin Viviane Maria , Juchem Beatriz Cavalcanti , Mantovani Vanessa Monteiro , Echer Isabel Cristina 
Published: September 2021

Objetivo: identificar diagnósticos e intervenções de enfermagem estabelecidos para pacientes tabagistas hospitalizados. Métodos: estudo transversal realizado em hospital universitário brasileiro entre agosto e setembro/2017 com entrevistas à beira do leito, consultas ao prontuário e query extraída do sistema informatizado da instituição. Resultados: participaram 69 pacientes tabagistas, para os quais identificaram-se 41 diagnósticos de enfermagem distintos, com mediana de quatro (intervalo interquartil: 3;6) por paciente. As intervenções prescritas totalizaram 237, com mediana de 18,5 (intervalo interquartil: 10,5;28,25) por prescrição. Quatro pacientes possuíam diagnóstico com etiologia relacionada ao abuso de substância e para esses foram prescritas 17 intervenções de enfermagem. Em 33(48%) anamneses constava que o paciente era tabagista e, destes, nove(27%) havia o tempo de fumo e número de cigarros consumidos diariamente. Conclusão: a prevalência de tabagistas hospitalizados é expressiva, entretanto, as anamneses, os diagnósticos e intervenções de enfermagem não retratam esta realidade, havendo necessidade de sensibilizar e capacitar a equipe.
Enhanced Thermal Transport across Self‐Interfacing van der Waals Contacts in Flexible Thermal Devices
Authors: Seong Minho , Hwang Insol , Park Seongjin , Jang Hyejin , Choi Geonjun , Kim Jaeil , Kim Shin‐Kwan , Kim Gun‐Ho , Yeo Junyeob , Jeong Hoon Eui 
Published: September 2021

AbstractMinimizing the thermal contact resistance (TCR) at the boundary between two bodies in contact is critical in diverse thermal transport devices. Conventional thermal contact methods have several limitations, such as high TCR, low interfacial adhesion, a requirement for high external pressure, and low optical transparency. Here, a self‐interfacing flexible thermal device (STD) that can form robust van der Waals mechanical contact and low‐resistant thermal contact to planar and non‐planar substrates without the need for external pressure or surface modification is presented. The device is based on a distinctive integration of a bioinspired adhesive architecture and a thermal transport layer formed from percolating silver nanowire (AgNW) networks. The proposed device exhibits a strong attachment (maximum 538.9 kPa) to target substrates while facilitating thermal transport across the contact interface with low TCR (0.012 m2 K kW−1) without the use of external pressure, thermal interfacial materials, or surface chemistries.
HfO2‐Based Memristor as an Artificial Synapse for Neuromorphic Computing with Tri‐Layer HfO2/BiFeO3/HfO2 Design
Authors: Peng Zehui , Wu Facai , Jiang Li , Cao Guangsen , Jiang Bei , Cheng Gong , Ke Shanwu , Chang Kuan‐Chang , Li Lei , Ye Cong 
Published: September 2021

AbstractNeuromorphic devices are among the most emerging electronic components to realize artificial neural systems and replace traditional complementary metal–oxide semiconductor devices in recent times. In this work, tri‐layer HfO2/BiFeO3(BFO)/HfO2 memristors are designed by inserting traditional ferroelectric BFO layers measuring ≈4 nm after thickness optimization. The novel designed memristor shows excellent resistive switching (RS) performance such as a storage window of 104 and multi‐level storage ability. Remarkably, essential synaptic functions can be successfully realized on the basis of the linearity of conductance modulation. The pattern recognition simulation based on neuromorphic network is conducted with 91.2% high recognition accuracy. To explore the RS performance enhancement and artificial synaptic behaviors, conductive filaments (CFs) composed of Hafnium (Hf) single crystal with a hexaganal lattice structure are observed using high‐resolution transmission electron microscopy. It is reasonable to believe that the sufficient oxygen vacancies in the inserting BFO thin film play a crucial role in adjusting the morphology and growth of Hf CFs, which leads to the promising synaptic and enhanced RS behavior, thus demonstrating the potential of this memristor for use in neuromorphic computing.
Swelling and Deswelling Kinetics of Thermo‐Responsive Microcapsules with Ultrathin Membrane
Authors: Choi Ye Hun , Jeon Seog‐Jin , Kim Shin‐Hyun 
Published: September 2021

AbstractMicrocapsules with a stimuli‐responsive hydrogel membrane are promising as drug carriers and microreactors as they can regulate transmembrane transport. Thinner membranes are usually preferred to facilitate molecular transport and maximize payload. However, swelling behaviors of ultrathin hydrogel membrane have not been systematically investigated. Here, swelling and deswelling kinetics of ultrathin membranes made of thermo‐responsive hydrogels with a lower critical solution temperature are studied. The thinness of hydrogel membrane dramatically alters the response of the microcapsules. The membrane rapidly responds to temperature changes by ejecting or accommodating a small amount of water. By contrast, the microcapsules require the transmembrane transport of a large volume of water for shrinkage or expansion, which takes a relatively long time. The difference in the timescales causes the microcapsules to behave unexpectedly. For example, the thickness of membrane decreases to be even thinner than the equilibrium for sudden increases of temperature. The shrinkage of the microcapsules is slower for higher temperature even though the deviation from equilibrium is greater. For sudden decreases of temperature, the fast expansion of membranes causes the microcapsules to buckle. Understanding the two different response timescales helps predict the peculiar responses and design microcapsules for the drug carriers and microreactors.
A Hybrid Materials Approach for Fabricating Efficient WLEDs Based on Di‐Ureasils Doped with Carbon Dots and a Europium Complex
Authors: Fang Ming , Neto Albano N. Carneiro , Fu Lianshe , Ferreira Rute A. S. , deZeaBermudez Verónica , Carlos L. D. 
Published: September 2021

AbstractWhite light‐emitting diodes (WLEDs) revolutionized the lighting industry providing high energy efficiency and a long lifetime. The recent development of efficient ultraviolet (UV) LEDs pushed forward the development of WLEDs based on mixtures of down‐shifting phosphors and the current challenges are focused on the design of sustainable light converting materials with tunable correlated color temperature (CCT) and high color rendering index (CRI). Here the authors report a simple route to design sustainable WLEDs with tunable and enhanced color features through the assembly of a commercial LED chip (400 nm) and flexible films of a di‐ureasil hybrid comprising a mixture of a cyan component originating from amorphous carbon dots and a red one resulting from the Eu(tta)3(bpyO2) (tta−: 2‐thenoyltrifluoroacetonate and bpyO2: 2,2′‐dipyridyl‐1,1′‐dioxide) complex. This red emission is responsible for high CRI arising from an unprecedented efficient energy bridge between bpyO2 and tta− excited states mediated by the hybrid host, as modeled by theoretical calculations based on the density functional theory and intramolecular energy transfer. WLED prototypes were fabricated with a tunable CCT from cold (5796 K) to warm (4228 K) white‐light with high CRI values of 89 and 84, respectively, outperforming the state‐of‐the‐art of UV‐based WLEDs.
Embellishment of Upconversion Nanoparticles with Ultrasmall Perovskite Quantum Dots for Full‐Color Tunable, Dual‐Modal Luminescence Anticounterfeiting
Authors: Du Kaimin , Zhang Manli , Li Yao , Li Huwei , Liu Kai , Li Chengyu , Feng Jing , Zhang Hongjie 
Published: September 2021

AbstractAdvanced fluorescent anticounterfeiting technology has attracted widespread attention and encourages people to develop reliable luminescent materials with multiple colors and tunable luminescence. Here, novel nanocomposites composed of perovskite quantum dots (PeQDs) and upconversion nanoparticles (UCNPs) are successfully designed and served as efficient anticounterfeiting inks. NaYF4:Yb/Tm@NaYF4:Yb core–shell UCNPs are formed first and then ultrasmall CsPbX3 (X = Cl, Br, and I or mixed halide systems Cl/Br and Br/I) PeQDs linked on the surface of UCNPs by seeded‐growth strategy. UCNPs‐CsPbX3 nanocomposites can not only provide multicolor downconversion luminescence (DCL) under ultraviolet (UV) excitation, but also produce tunable upconversion luminescence (UCL) under 980 nm continuous‐wave laser excitation. Finally, UCX3 nanocomposites are mixed with prepolystyrene (PS) and the resulting UCX3/PS with excellent water stability and photostability can be employed as multicolor fluorescent ink for both writing and printing. These findings not only present a general method to fabricate novel nanocomposites combining both advantages of UCNPs and PeQDs, but also provide insight for the practical application in the field of anticounterfeiting.
Azo Molecular Glass Patterning from Chiral Submicron Pillar Array to Self‐Organized Topographic Transition via Irradiation with Circularly Polarized Light
Authors: Wang Zenan , Huang Hao , Hsu Chungen , Wang Xiaogong 
Published: September 2021

AbstractThis work reports chiral structure formation and self‐organized surface patterning upon submicron pillar arrays of an azo molecular glass, induced by irradiation with a circularly polarized laser beam at 488 nm. After the irradiation for 2–3 min, the chiral spiral structures form on the wall of every pillar in the hexagonal array. The spiral direction induced by the right‐handed circularly polarized light is mirror‐symmetrical to that caused by the left‐handed circularly polarized light. Upon further irradiation and gradual erasure of the original pillars, which is caused by mass transfer along the electric vibration direction of the circularly polarized light, a new set of pillars emerges through splitting every original pillar into four equivalent pillars with smaller size. A series of the well‐organized surface patterns appear in the intermediate stage of the topographical transition process. In the final stage, the highly regular pillar array with quadruple area density is formed and stabilized. The structure formation and self‐organized topographic transition are thoroughly investigated by experiments and optical simulation. These intriguing observations are found to be correlated with several unique light–matter interaction effects. The discoveries can provide a new approach to create hierarchical surface patterns and detect the handedness of light.
Stable Organic Passivated Carbon Nanotube–Silicon Solar Cells with an Efficiency of 22%
Authors: Yan Jun , Zhang Cuili , Li Han , Yang Xueliang , Wan Lu , Li Feng , Qiu Kaifu , Guo Jianxin , Duan Weiyuan , Lambertz Andreas , Lu Wanbing , Song Dengyuan , Ding Kaining , Flavel Benjamin S. , Chen Jianhui 
Published: September 2021

AbstractThe organic passivated carbon nanotube (CNT)/silicon (Si) solar cell is a new type of low‐cost, high‐efficiency solar cell, with challenges concerning the stability of the organic layer used for passivation. In this work, the stability of the organic layer is studied with respect to the internal and external (humidity) water content and additionally long‐term stability for low moisture environments. It is found that the organic passivated CNT/Si complex interface is not stable, despite both the organic passivation layer and CNTs being stable on their own and is due to the CNTs providing an additional path for water molecules to the interface. With the use of a simple encapsulation, a record power conversion efficiency of 22% is achieved and a stable photovoltaic performance is demonstrated. This work provides a new direction for the development of high‐performance/low‐cost photovoltaics in the future and will stimulate the use of nanotubes materials for solar cells applications.
Reversible Immunoaffinity Interface Enables Dynamic Manipulation of Trapping Force for Accumulated Capture and Efficient Release of Circulating Rare Cells
Authors: Chen Xiaofeng , Ding Hongming , Zhang Dongdong , Zhao Kaifeng , Gao Jiafeng , Lin Bingqian , Huang Chen , Song Yanling , Zhao Gang , Ma Yuqiang , Wu Lingling , Yang Chaoyong 
Published: September 2021

AbstractControllable assembly and disassembly of recognition interface are vital for bioanalysis. Herein, a strategy of dynamic manipulation of trapping force by engineering a dynamic and reversible immunoaffinity microinterface (DynarFace) in a herringbone chip (DynarFace‐Chip) for liquid biopsy is proposed. The DynarFace is assembled by magnetically attracting immunomagnetic beads (IMBs) on chip substrate, with merits of convenient operation and reversible assembly. The DynarFace allows accumulating attachment of IMBs on circulating rare cell (CRC) surfaces during hydrodynamically enhanced interface collision, where accumulatively enhanced magnetic trapping force improves capture efficiency toward CRCs with medium expression of biomarkers from blood samples by 134.81% compared with traditional non‐dynamic interfaces. Moreover, magnet withdrawing‐induced disappearance of trapping force affords DynarFace disassembly and CRC release with high efficiency (>98%) and high viability (≈98%), compatible with downstream in vitro culture and gene analysis of CRCs. This DynarFace strategy opens a new avenue to accumulated capture and reversible release of CRCs, holding great potential for liquid biopsy‐based precision medicine.